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最(zui)新資訊 了(le)解公司的最新(xin)活動及打折促銷
2020 - 01 - 06
為(wei)了使(shi)最(zui)終組(zu)裝(zhuang)成功(gong),在(zai)(zai)對制(zhi)(zhi)冷(leng)(leng)系(xi)(xi)統(tong)進行氣密(mi)性(xing)測(ce)試和泄漏檢測(ce)之(zhi)后,必(bi)須執(zhi)行完全真(zhen)(zhen)空(kong)(抽(chou)真(zhen)(zhen)空(kong))。維修(xiu)(xiu)空(kong)調和制(zhi)(zhi)冷(leng)(leng)設(she)(she)備(bei)(bei)時,維修(xiu)(xiu)人(ren)員經常使(shi)用(yong)(yong)GVD8|GVD12旋(xuan)(xuan)(xuan)片式真(zhen)(zhen)空(kong)泵(beng)(beng)(beng)抽(chou)空(kong)系(xi)(xi)統(tong)。真(zhen)(zhen)空(kong)度應(ying)為(wei)-0.1MPa,持(chi)續24小(xiao)時,并且真(zhen)(zhen)空(kong)度可以增(zeng)加而不會(hui)顯著增(zeng)加。抽(chou)空(kong)是(shi)使(shi)用(yong)(yong)真(zhen)(zhen)空(kong)泵(beng)(beng)(beng)或壓(ya)縮(suo)(suo)(suo)機抽(chou)空(kong)制(zhi)(zhi)冷(leng)(leng)劑循環系(xi)(xi)統(tong),以便排出(chu)系(xi)(xi)統(tong)中的(de)(de)(de)空(kong)氣和殘留(liu)水分。本文將介紹制(zhi)(zhi)冷(leng)(leng)設(she)(she)備(bei)(bei)中的(de)(de)(de)GVD8|GVD12旋(xuan)(xuan)(xuan)片式真(zhen)(zhen)空(kong)泵(beng)(beng)(beng)的(de)(de)(de)結構(gou)和常見(jian)故(gu)障(zhang)。  制(zhi)(zhi)冷(leng)(leng)設(she)(she)備(bei)(bei)是(shi)指主要用(yong)(yong)于在(zai)(zai)夏天(tian)制(zhi)(zhi)冷(leng)(leng)機組(zu)人(ren)員的(de)(de)(de)食物,制(zhi)(zhi)冷(leng)(leng)各種貨物和機艙空(kong)調的(de)(de)(de)設(she)(she)備(bei)(bei)。它(ta)主要由(you)壓(ya)縮(suo)(suo)(suo)機,膨脹閥,蒸發(fa)器,冷(leng)(leng)凝器及其(qi)配件(jian)和管道組(zu)成。按(an)照工作(zuo)原理,可分為(wei)壓(ya)縮(suo)(suo)(suo)式制(zhi)(zhi)冷(leng)(leng)設(she)(she)備(bei)(bei),吸收式制(zhi)(zhi)冷(leng)(leng)設(she)(she)備(bei)(bei),蒸汽噴射式制(zhi)(zhi)冷(leng)(leng)設(she)(she)備(bei)(bei),熱泵(beng)(beng)(beng)式制(zhi)(zhi)冷(leng)(leng)設(she)(she)備(bei)(bei)和電加熱式制(zhi)(zhi)冷(leng)(leng)設(she)(she)備(bei)(bei)。  制(zhi)(zhi)冷(leng)(leng)設(she)(she)備(bei)(bei)中GVD8|GVD12旋(xuan)(xuan)(xuan)片式真(zhen)(zhen)空(kong)泵(beng)(beng)(beng)的(de)(de)(de)結構(gou)和工作(zuo)原理  常用(yong)(yong)的(de)(de)(de)真(zhen)(zhen)空(kong)泵(beng)(beng)(beng)是(shi)旋(xuan)(xuan)(xuan)片真(zhen)(zhen)空(kong)泵(beng)(beng)(beng),它(ta)是(shi)一種用(yong)(yong)泵(beng)(beng)(beng)油密(mi)封的(de)(de)(de)機械泵(beng)(beng)(beng)。  旋(xuan)(xuan)(xuan)片泵(beng)(beng)(beng)主要由(you)泵(beng)(beng)(beng)體,轉(zhuan)(zhuan)(zhuan)(zhuan)子,旋(xuan)(xuan)(xuan)片,端蓋,彈簧(huang)等組(zu)成。轉(zhuan)(zhuan)(zhuan)(zhuan)子偏(pian)心地(di)安(an)裝(zhuang)在(zai)(zai)旋(xuan)(xuan)(xuan)片泵(beng)(beng)(beng)的(de)(de)(de)腔體中,并且轉(zhuan)(zhuan)(zhuan)(zhuan)子外(wai)圓和泵(beng)(beng)(beng)腔內(nei)的(de)(de)(de)表(biao)(biao)面相(xiang)(xiang)切(它(ta)們之(zhi)間的(de)(de)(de)間隙很小(xiao))。在(zai)(zai)轉(zhuan)(zhuan)(zhuan)(zhuan)子槽中安(an)裝(zhuang)了兩個帶彈簧(huang)的(de)(de)(de)轉(zhuan)(zhuan)(zhuan)(zhuan)子。在(zai)(zai)旋(xuan)(xuan)(xuan)轉(zhuan)(zhuan)(zhuan)(zhuan)過程中,旋(xuan)(xuan)(xuan)片的(de)(de)(de)頂部通(tong)過離心力和彈簧(huang)張力保持(chi)與(yu)泵(beng)(beng)(beng)腔的(de)(de)(de)內(nei)壁(bi)接(jie)(jie)觸。轉(zhuan)(zhuan)(zhuan)(zhuan)子旋(xuan)(xuan)(xuan)轉(zhuan)(zhuan)(zhuan)(zhuan)以驅動旋(xuan)(xuan)(xuan)片沿泵(beng)(beng)(beng)腔內(nei)壁(bi)滑動。  轉(zhuan)(zhuan)(zhuan)(zhuan)子外(wai)圓的(de)(de)(de)表(biao)(biao)面與(yu)泵(beng)(beng)(beng)腔內(nei)相(xiang)(xiang)切,旋(xuan)(xuan)(xuan)轉(zhuan)(zhuan)(zhuan)(zhuan)刀片安(an)裝(zhuang)在(zai)(zai)轉(zhuan)(zhuan)(zhuan)(zhuan)子鎬中。在(zai)(zai)彈簧(huang)的(de)(de)(de)作(zuo)用(yong)(yong)下(xia),它(ta)始終與(yu)定子腔壁(bi)緊(jin)密(mi)接(jie)(jie)觸。當偏(pian)心轉(zhuan)(zhuan)(zhuan)(zhuan)子在(zai)(zai)電動機的(de)(de)(de)牽引下(xia)旋(xuan)(xuan)(xuan)轉(zhuan)(zhuan)(zhuan)(zhuan)時,轉(zhuan)(zhuan)(zhuan)(zhuan)子也隨之(zhi)旋(xuan)(xuan)(xuan)轉(zhuan)(zhuan)(zhuan)(zhuan)。順(shun)時針旋(xuan)(xuan)(xuan)轉(zhuan)(zhuan)(zhuan)(zhuan)時,吸氣口(kou)會(hui)持(chi)...
2020 - 01 - 09
氣(qi)(qi)(qi)(qi)(qi)蝕(shi)現象是由液(ye)體汽(qi)化引起的(de)(de)。液(ye)體分子逃逸成(cheng)氣(qi)(qi)(qi)(qi)(qi)體分子,這被稱為“汽(qi)化”。水(shui)(shui)環(huan)(huan)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)發(fa)生(sheng)氣(qi)(qi)(qi)(qi)(qi)蝕(shi)后,不(bu)僅(jin)會(hui)破壞過流部件,還(huan)會(hui)產生(sheng)噪聲和(he)振動,導致(zhi)泵(beng)(beng)(beng)(beng)(beng)的(de)(de)性能下降。在(zai)嚴重(zhong)的(de)(de)情況下,它(ta)會(hui)停止(zhi)泵(beng)(beng)(beng)(beng)(beng)中的(de)(de)液(ye)體,使(shi)其無法正(zheng)常工(gong)作(zuo)。2bv水(shui)(shui)環(huan)(huan)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)在(zai)空(kong)(kong)(kong)化狀態下短(duan)時間運(yun)行,這將(jiang)導致(zhi)泵(beng)(beng)(beng)(beng)(beng)的(de)(de)噪聲和(he)振動變(bian)大(da),甚(shen)至對(dui)泵(beng)(beng)(beng)(beng)(beng)造成(cheng)損壞。那么如何防止(zhi)水(shui)(shui)環(huan)(huan)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)產生(sheng)氣(qi)(qi)(qi)(qi)(qi)蝕(shi)呢?今天(tian)小編為大(da)家(jia)總(zong)結(jie)了以下幾點,僅(jin)供參考!  提(ti)高水(shui)(shui)的(de)(de)熱(re)度  隨著2bv水(shui)(shui)環(huan)(huan)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)冷凍(dong)水(shui)(shui)溫的(de)(de)升高,水(shui)(shui)環(huan)(huan)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)的(de)(de)泵(beng)(beng)(beng)(beng)(beng)送(song)能量將(jiang)會(hui)嚴重(zhong)增加(jia)。水(shui)(shui)環(huan)(huan)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)密(mi)封(feng)水(shui)(shui)的(de)(de)熱(re)量必須低于對(dui)應于排氣(qi)(qi)(qi)(qi)(qi)壓(ya)(ya)力(li)(li)(li)的(de)(de)飽和(he)熱(re)量,否則將(jiang)導致(zhi)水(shui)(shui)環(huan)(huan)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)葉輪的(de)(de)氣(qi)(qi)(qi)(qi)(qi)蝕(shi)。因此,防止(zhi)氣(qi)(qi)(qi)(qi)(qi)蝕(shi)的(de)(de)目(mu)的(de)(de)是增加(jia)水(shui)(shui)的(de)(de)熱(re)量。  正(zheng)確選擇  在(zai)選擇階(jie)段,當選擇2bv水(shui)(shui)環(huan)(huan)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)的(de)(de)吸入壓(ya)(ya)力(li)(li)(li)和(he)水(shui)(shui)的(de)(de)熱(re)度時,應盡可能避免水(shui)(shui)環(huan)(huan)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)容易發(fa)生(sheng)氣(qi)(qi)(qi)(qi)(qi)蝕(shi)的(de)(de)壓(ya)(ya)力(li)(li)(li)范圍,即應防止(zhi)水(shui)(shui)環(huan)(huan)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)在(zai)臨(lin)界真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)度或臨(lin)界排氣(qi)(qi)(qi)(qi)(qi)壓(ya)(ya)力(li)(li)(li)區域(yu)內(nei)(nei)運(yun)行,以避免發(fa)生(sheng)嚴重(zhong)的(de)(de)蒸(zheng)(zheng)汽(qi)腐蝕(shi)。  裝置(zhi)的(de)(de)氣(qi)(qi)(qi)(qi)(qi)蝕(shi)屏(ping)蔽管  裝有(you)氣(qi)(qi)(qi)(qi)(qi)蝕(shi)屏(ping)蔽管的(de)(de)2bv水(shui)(shui)環(huan)(huan)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng),壓(ya)(ya)縮時氣(qi)(qi)(qi)(qi)(qi)蝕(shi)破裂(lie)產生(sheng)的(de)(de)氣(qi)(qi)(qi)(qi)(qi)泡(pao),以及(ji)從(cong)內(nei)(nei)部引入壓(ya)(ya)力(li)(li)(li)較高的(de)(de)不(bu)凝氣(qi)(qi)(qi)(qi)(qi)體,可以及(ji)時補(bu)充氣(qi)(qi)(qi)(qi)(qi)泡(pao)破裂(lie)產生(sheng)的(de)(de)空(kong)(kong)(kong)間,這可以大(da)大(da)增加(jia)蒸(zheng)(zheng)汽(qi)嚴重(zhong)腐蝕(shi)對(dui)泵(beng)(beng)(beng)(beng)(beng)的(de)(de)危害(hai),增加(jia)氣(qi)(qi)(qi)(qi)(qi)蝕(shi)引起的(de)(de)噪音(yin)和(he)振動。  空(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)噴(pen)射(she)器  大(da)氣(qi)(qi)(qi)(qi)(qi)噴(pen)射(she)器的(de)(de)功(gong)能是利用大(da)氣(qi)(qi)(qi)(qi)(qi)壓(ya)(ya)力(li)(li)(li)和(he)水(shui)(shui)環(huan)(huan)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)之間的(de)(de)壓(ya)(ya)差產生(sheng)大(da)氣(qi)(qi)(qi)(qi)(qi)射(she)流,使(shi)噴(pen)射(she)器內(nei)(nei)的(de)(de)吸入壓(ya)(ya)力(li)(li)(li)比水(shui)(shui)環(huan)(huan)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)低,從(cong)而消除水(shui)(shui)環(huan)(huan)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)的(de)(de)極限壓(ya)(ya)力(li)(li)(li),防止(zhi)水(shui)(shui)環(huan)(huan)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)氣(qi)(qi)(qi)(qi)(qi)蝕(shi),起到(dao)屏(ping)蔽水(shui)(shui)環(huan)(huan)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)的(de)(de)作(zuo)用。由于設(she)置(zhi)空(kong)(kong)(kong)...
2020 - 01 - 15
旋(xuan)片(pian)(pian)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵長期使(shi)(shi)用(yong)(yong)(yong)(yong)后(hou),會(hui)出現(xian)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)下(xia)(xia)(xia)降、密封處漏油(you)、真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵旋(xuan)轉(zhuan)(zhuan)停滯(zhi)甚至(zhi)“卡滯(zhi)”、嚴重油(you)污(wu)、真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵腔生銹(xiu)、旋(xuan)片(pian)(pian)撞擊聲大、硬物落入(ru)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵腔劃傷真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵腔、真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵過(guo)熱等(deng)異常現(xian)象。  此時,真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵必須拆(chai)卸和(he)(he)清洗(xi)。該方(fang)法(fa)包(bao)(bao)括以(yi)(yi)下(xia)(xia)(xia)步驟。  (1)切斷電源,從真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)系(xi)統(tong)中取出真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵。  (2)用(yong)(yong)(yong)(yong)重力法(fa)或加壓法(fa)排放和(he)(he)收(shou)集污(wu)油(you),避免環境污(wu)染。  (3)取下(xia)(xia)(xia)皮帶和(he)(he)滑輪(lun)鍵(雙級旋(xuan)片(pian)(pian)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵包(bao)(bao)括皮帶)。  (4)先拆(chai)下(xia)(xia)(xia)低真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)端(duan)(duan),拆(chai)下(xia)(xia)(xia)后(hou)端(duan)(duan)蓋(gai)(gai),然(ran)后(hou)拆(chai)下(xia)(xia)(xia)低真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)轉(zhuan)(zhuan)子(zi)、旋(xuan)轉(zhuan)(zhuan)板、彈(dan)(dan)簧(huang)等(deng)。  (5)拆(chai)下(xia)(xia)(xia)前(qian)端(duan)(duan)蓋(gai)(gai),取出高真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)轉(zhuan)(zhuan)子(zi)、轉(zhuan)(zhuan)盤、彈(dan)(dan)簧(huang)等(deng)。  (6)拆(chai)下(xia)(xia)(xia)視鏡、排氣閥、排氣蓋(gai)(gai)等(deng)。  (7)用(yong)(yong)(yong)(yong)汽油(you)徹底清洗(xi)去除(chu)的(de)金屬部件,并(bing)用(yong)(yong)(yong)(yong)酒精脫水。橡(xiang)膠部件可以(yi)(yi)用(yong)(yong)(yong)(yong)15%氟化氫鈉溶液煮沸除(chu)去油(you)。對(dui)于有毛刺或鐵銹(xiu)的(de)零件,可以(yi)(yi)使(shi)(shi)用(yong)(yong)(yong)(yong)油(you)石或金相(xiang)砂紙輕(qing)輕(qing)打(da)磨(mo)以(yi)(yi)去除(chu)銹(xiu)斑和(he)(he)毛刺。清潔過(guo)的(de)零件必須干燥。  (8)組(zu)裝(zhuang)時,先安(an)裝(zhuang)后(hou)級,托起(qi)彈(dan)(dan)簧(huang)和(he)(he)旋(xuan)轉(zhuan)(zhuan)板,安(an)裝(zhuang)到轉(zhuan)(zhuan)子(zi)中,然(ran)后(hou)將前(qian)端(duan)(duan)蓋(gai)(gai)安(an)裝(zhuang)到真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵室(shi)內,安(an)裝(zhuang)定位銷(xiao),均勻對(dui)稱地擰緊螺釘。組(zu)裝(zhuang)后(hou),旋(xuan)轉(zhuan)(zhuan)應(ying)靈(ling)活均勻。安(an)裝(zhuang)前(qian)轉(zhuan)(zhuan)子(zi)和(he)(he)后(hou)端(duan)(duan)蓋(gai)(gai)后(hou),安(an)裝(zhuang)排氣閥(排氣閥片(pian)(pian)應(ying)緊緊地附在閥座上(shang))和(he)(he)其他(ta)部件,如氣體鎮流器裝(zhuang)置等(deng)。  旋(xuan)片(pian)(pian)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵維護注意(yi)事(shi)項(xiang),真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵維護知識總結:  (1)定期檢(jian)查油(you)位是否低以(yi)(yi)及干油(you)標記線。如果有低干油(you)標記,應(ying)及時加油(you)。杏(xing)會(hui)影響真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵的(de)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)度。油(you)量不應(ying)太多,否則會(hui)導(dao)致起(qi)動困難和(he)(he)噴油(you)困難等(deng)問(wen)題。  (2)應(ying)注意(yi)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵的(de)正常運行(xing)...
2020 - 02 - 19
如何選擇和(he)計算真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空泵(beng)(beng)?  選擇真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空泵(beng)(beng)之前,我們必(bi)須弄清楚(chu)一些基(ji)本概念:  真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空  從理(li)(li)論(lun)(lun)(lun)上講(jiang),該(gai)體積中沒(mei)有(you)(you)(you)物質。 (實(shi)(shi)際(ji)上沒(mei)有(you)(you)(you)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)正的(de)(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空。)通(tong)常(chang)(chang),容(rong)器中的(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)低(di)于(yu)正常(chang)(chang)大氣壓(ya)(ya)(ya)(ya)(ya)(101325 Pa)稱為(wei)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空狀態(tai)。  真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空度(du)(du)  它表示(shi)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空狀態(tai)下氣體的(de)(de)(de)(de)稀薄(bo)程度(du)(du),通(tong)常(chang)(chang)由(you)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)值(zhi)(zhi)(zhi)表示(shi)。在(zai)實(shi)(shi)際(ji)應用中,真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空度(du)(du)通(tong)常(chang)(chang)有(you)(you)(you)兩個術語(yu):絕(jue)(jue)(jue)(jue)對(dui)(dui)(dui)(dui)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空和(he)相(xiang)(xiang)對(dui)(dui)(dui)(dui)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空。從真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空計讀取的(de)(de)(de)(de)值(zhi)(zhi)(zhi)稱為(wei)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空度(du)(du)。真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空值(zhi)(zhi)(zhi)是(shi)指示(shi)系統(tong)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)的(de)(de)(de)(de)實(shi)(shi)際(ji)值(zhi)(zhi)(zhi)低(di)于(yu)大氣壓(ya)(ya)(ya)(ya)(ya)的(de)(de)(de)(de)值(zhi)(zhi)(zhi)。表格(ge)中顯示(shi)的(de)(de)(de)(de)值(zhi)(zhi)(zhi)也稱為(wei)表壓(ya)(ya)(ya)(ya)(ya)。這也稱為(wei)行業(ye)中的(de)(de)(de)(de)最終相(xiang)(xiang)對(dui)(dui)(dui)(dui)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)。 (對(dui)(dui)(dui)(dui)于(yu)一般強度(du)(du),取101325Pa的(de)(de)(de)(de)絕(jue)(jue)(jue)(jue)對(dui)(dui)(dui)(dui)絕(jue)(jue)(jue)(jue)對(dui)(dui)(dui)(dui)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li),水環(huan)型真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空泵(beng)(beng)為(wei)3300Pa;旋轉葉片真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空泵(beng)(beng)的(de)(de)(de)(de)絕(jue)(jue)(jue)(jue)對(dui)(dui)(dui)(dui)絕(jue)(jue)(jue)(jue)對(dui)(dui)(dui)(dui)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)約為(wei)10Pa)  絕(jue)(jue)(jue)(jue)對(dui)(dui)(dui)(dui)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空相(xiang)(xiang)對(dui)(dui)(dui)(dui)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空  極限相(xiang)(xiang)對(dui)(dui)(dui)(dui)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)  相(xiang)(xiang)對(dui)(dui)(dui)(dui)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)是(shi)所測得的(de)(de)(de)(de)內(nei)(nei)(nei)部(bu)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)比(bi)“大氣壓(ya)(ya)(ya)(ya)(ya)”低(di)多少。該(gai)表顯示(shi)系統(tong)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)的(de)(de)(de)(de)實(shi)(shi)際(ji)值(zhi)(zhi)(zhi)低(di)于(yu)大氣壓(ya)(ya)(ya)(ya)(ya)的(de)(de)(de)(de)值(zhi)(zhi)(zhi)。由(you)于(yu)容(rong)器內(nei)(nei)(nei)部(bu)的(de)(de)(de)(de)空氣被泵(beng)(beng)送,因(yin)(yin)此(ci)內(nei)(nei)(nei)部(bu)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)始終低(di)于(yu)容(rong)器外部(bu)的(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)。因(yin)(yin)此(ci),當(dang)使(shi)用相(xiang)(xiang)對(dui)(dui)(dui)(dui)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)或(huo)表壓(ya)(ya)(ya)(ya)(ya)時,該(gai)值(zhi)(zhi)(zhi)前必(bi)須帶有(you)(you)(you)負號(hao),以指示(shi)容(rong)器的(de)(de)(de)(de)內(nei)(nei)(nei)部(bu)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)低(di)于(yu)外部(bu)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)。  極限絕(jue)(jue)(jue)(jue)對(dui)(dui)(dui)(dui)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)  絕(jue)(jue)(jue)(jue)對(dui)(dui)(dui)(dui)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)是(shi)指測得的(de)(de)(de)(de)內(nei)(nei)(nei)部(bu)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)比(bi)“理(li)(li)論(lun)(lun)(lun)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(理(li)(li)論(lun)(lun)(lun)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)值(zhi)(zhi)(zhi)為(wei)0Pa)”高多少。它比(bi)較(jiao)的(de)(de)(de)(de)對(dui)(dui)(dui)(dui)象是(shi)理(li)(li)論(lun)(lun)(lun)狀態(tai)的(de)(de)(de)(de)絕(jue)(jue)(jue)(jue)對(dui)(dui)(dui)(dui)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)值(zhi)(zhi)(zhi)。由(you)于(yu)工(gong)藝(yi)限制(zhi),我們始終無法將內(nei)(nei)(nei)部(bu)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)抽至絕(jue)(jue)(jue)(jue)對(dui)(dui)(dui)(dui)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空值(zhi)(zhi)(zhi)0Pa,因(yin)(yin)此(ci)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空泵(beng)(beng)抽出的(de)(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空值(zhi)(zhi)(zhi)高于(yu)理(li)(li)論(lun)(lun)(lun)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空值(zhi)(zhi)(zhi)。因(yin)(yin)此(ci),在(zai)使(shi)用絕(jue)(jue)(jue)(jue)對(dui)(dui)(dui)(dui)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空時,值(zhi)(zhi)(zhi)前面沒(mei)有(you)(you)(you)負號(hao)。  例如,設(she)備的(de)(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空度(du)(du)為(wei)0.098MPa,實(shi)(shi)際(ji)上為(wei)-0.098MPa  抽氣量 ...
2020 - 02 - 22
爪式(shi)(shi)干(gan)式(shi)(shi)真空(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)利(li)用(yong)(yong)連接(jie)到(dao)兩個軸的(de)(de)成對(dui)爪式(shi)(shi)轉子(zi)(zi)(zi)之間(jian)(jian)(jian)(jian)、轉子(zi)(zi)(zi)和(he)(he)泵(beng)(beng)(beng)(beng)(beng)(beng)腔(qiang)(qiang)內(nei)壁之間(jian)(jian)(jian)(jian)以(yi)及轉子(zi)(zi)(zi)和(he)(he)隔(ge)板之間(jian)(jian)(jian)(jian)的(de)(de)間(jian)(jian)(jian)(jian)隙和(he)(he)無摩擦(ca)接(jie)合(he)形(xing)成的(de)(de)封閉(bi)腔(qiang)(qiang)的(de)(de)容積(ji)變化(hua)來(lai)完成吸(xi)(xi)入和(he)(he)排出過(guo)程。  結構(gou)  爪式(shi)(shi)干(gan)式(shi)(shi)真空(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)結構(gou)一般采用(yong)(yong)多(duo)級(ji)(ji)(ji)轉子(zi)(zi)(zi)串聯或羅(luo)茨(ci)轉子(zi)(zi)(zi)與多(duo)級(ji)(ji)(ji)轉子(zi)(zi)(zi)串聯的(de)(de)形(xing)式(shi)(shi),形(xing)成多(duo)級(ji)(ji)(ji)爪式(shi)(shi)干(gan)式(shi)(shi)真空(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)。  四個泵(beng)(beng)(beng)(beng)(beng)(beng)室依次串聯,每個泵(beng)(beng)(beng)(beng)(beng)(beng)室內(nei)有(you)一對(dui)爪形(xing)轉子(zi)(zi)(zi),爪形(xing)轉子(zi)(zi)(zi)相(xiang)互嚙(nie)合(he),同步(bu)反向運(yun)動(dong)。  四級(ji)(ji)(ji)泵(beng)(beng)(beng)(beng)(beng)(beng)室中的(de)(de)第一級(ji)(ji)(ji)泵(beng)(beng)(beng)(beng)(beng)(beng)室為吸(xi)(xi)入級(ji)(ji)(ji),其吸(xi)(xi)入容積(ji)大于后三級(ji)(ji)(ji),形(xing)成級(ji)(ji)(ji)間(jian)(jian)(jian)(jian)壓(ya)縮(suo)。  四對(dui)轉子(zi)(zi)(zi)安(an)裝在(zai)兩根(gen)平行(xing)的(de)(de)軸上,軸由(you)上下(xia)(xia)(xia)兩端的(de)(de)軸承支撐,泵(beng)(beng)(beng)(beng)(beng)(beng)室級(ji)(ji)(ji)和(he)(he)級(ji)(ji)(ji)之間(jian)(jian)(jian)(jian)設有(you)隔(ge)板,隔(ge)板上設有(you)吸(xi)(xi)排氣(qi)(qi)(qi)通(tong)道。  電機上下(xia)(xia)(xia)顛倒(dao)安(an)裝,通(tong)過(guo)交(jiao)叉齒輪(lun)將動(dong)力傳遞給(gei)轉子(zi)(zi)(zi)軸。轉子(zi)(zi)(zi)軸由(you)一對(dui)同步(bu)時(shi)限齒輪(lun)驅動(dong),并調節和(he)(he)固定(ding)(ding)轉子(zi)(zi)(zi)的(de)(de)相(xiang)位。  轉子(zi)(zi)(zi)之間(jian)(jian)(jian)(jian)和(he)(he)轉子(zi)(zi)(zi)與泵(beng)(beng)(beng)(beng)(beng)(beng)腔(qiang)(qiang)內(nei)部(bu)(bu)留有(you)小(xiao)間(jian)(jian)(jian)(jian)隙,轉子(zi)(zi)(zi)懸浮在(zai)泵(beng)(beng)(beng)(beng)(beng)(beng)腔(qiang)(qiang)內(nei),過(guo)流部(bu)(bu)分沒有(you)任(ren)何實(shi)質性的(de)(de)接(jie)觸摩擦(ca),不需要潤滑,保(bao)證了(le)爪式(shi)(shi)泵(beng)(beng)(beng)(beng)(beng)(beng)能夠長(chang)期穩定(ding)(ding)地(di)保(bao)持(chi)極高(gao)(gao)(gao)的(de)(de)真空(kong)度、泵(beng)(beng)(beng)(beng)(beng)(beng)速、恒定(ding)(ding)的(de)(de)壓(ya)縮(suo)比和(he)(he)長(chang)的(de)(de)使(shi)用(yong)(yong)壽命(ming)。  特(te)征  泵(beng)(beng)(beng)(beng)(beng)(beng)室不含任(ren)何介質,如油(you)等,清潔(jie)、排空(kong),對(dui)環境無污染。  高(gao)(gao)(gao)真空(kong),高(gao)(gao)(gao)達3Pa。  本實(shi)用(yong)(yong)新型結構(gou)簡單,易于操作和(he)(he)維護,運(yun)行(xing)成本低。  能在(zai)高(gao)(gao)(gao)壓(ya)下(xia)(xia)(xia)長(chang)時(shi)間(jian)(jian)(jian)(jian)連續工(gong)作,噪(zao)音小(xiao)。  它(ta)能去除腐蝕性氣(qi)(qi)(qi)體(ti)(ti)(ti)(ti)、有(you)毒氣(qi)(qi)(qi)體(ti)(ti)(ti)(ti)、易燃易爆氣(qi)(qi)(qi)體(ti)(ti)(ti)(ti)、放射性氣(qi)(qi)(qi)體(ti)(ti)(ti)(ti)、含塵(chen)氣(qi)(qi)(qi)體(ti)(ti)(ti)(ti)和(he)(he)可冷凝氣(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(如水蒸氣(qi)(qi)(qi)、有(you)機氣(qi)(qi)(qi)體(ti)(ti)(ti)(ti)等)。)。  可用(yong)(yong)作氣(qi)(qi)(qi)體(ti)(ti)(ti)(ti)輸送泵(beng)(beng)(beng)(beng)(beng)(beng),壓(ya)縮(suo)比為10-105。  轉子(zi)(zi)(zi)對(dui)懸掛在(zai)泵(beng)(beng)(beng)(beng)(beng)(beng)腔(qiang)(qiang)內(nei),轉子(zi)(zi)(zi)對(dui)與泵(beng)(beng)(beng)(beng)(beng)(beng)腔(qiang)(qiang)無接(jie)觸,無摩擦(ca),使(shi)用(yong)(yong)壽命(ming)長(chang)。 ...
2020 - 02 - 25
離(li)心(xin)泵(beng)(beng)出(chu)(chu)(chu)口(kou)(kou)的(de)(de)(de)(de)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)作用(yong)就是防止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)出(chu)(chu)(chu)口(kou)(kou)管(guan)路(lu)(lu)(lu)(lu)中(zhong)的(de)(de)(de)(de)液體(ti)倒(dao)流(liu)形成(cheng)水(shui)(shui)(shui)錘造成(cheng)泵(beng)(beng)內葉輪損(sun)傷。  止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)安裝(zhuang)(zhuang)與(yu)泵(beng)(beng)的(de)(de)(de)(de)多少無關(guan),止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)主要(yao)為(wei)了(le)在泵(beng)(beng)停止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)運行后,防止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)液體(ti)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)流(liu),使泵(beng)(beng)倒(dao)轉,從而造成(cheng)損(sun)壞(huai)泵(beng)(beng)的(de)(de)(de)(de)事(shi)故,并且(qie)為(wei)了(le)防止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)液體(ti)倒(dao)流(liu)對(dui)其他(ta)儲(chu)罐等的(de)(de)(de)(de)損(sun)壞(huai)(從高位罐倒(dao)流(liu)會造成(cheng)罐補抽壞(huai))。因此最好(hao)加(jia)上止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)。  如果能保(bao)證停泵(beng)(beng)前先關(guan)閉(bi)出(chu)(chu)(chu)口(kou)(kou)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa),且(qie)出(chu)(chu)(chu)口(kou)(kou)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)不(bu)內漏或損(sun)壞(huai),也可以不(bu)安止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)。  離(li)心(xin)泵(beng)(beng)出(chu)(chu)(chu)口(kou)(kou)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)門(men)'止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)'的(de)(de)(de)(de)選(xuan)型(xing)  一(yi)般(ban)(ban)(ban)的(de)(de)(de)(de)泵(beng)(beng)站工程(cheng)情況,對(dui)于(yu)泵(beng)(beng)出(chu)(chu)(chu)口(kou)(kou)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)選(xuan)擇(ze),應(ying)遵循以下原則;  1、對(dui)泵(beng)(beng)出(chu)(chu)(chu)口(kou)(kou)管(guan)路(lu)(lu)(lu)(lu)口(kou)(kou)徑(jing)(jing)(jing)較小的(de)(de)(de)(de)管(guan)路(lu)(lu)(lu)(lu),即(ji)DN ≤50mm時,應(ying)選(xuan)用(yong)升(sheng)降式(shi)(shi)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)。  2、對(dui)泵(beng)(beng)出(chu)(chu)(chu)口(kou)(kou)管(guan)路(lu)(lu)(lu)(lu)口(kou)(kou)徑(jing)(jing)(jing)DN50mm的(de)(de)(de)(de)管(guan)路(lu)(lu)(lu)(lu),應(ying)選(xuan)用(yong)旋(xuan)啟(qi)(qi)式(shi)(shi)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)旋(xuan)啟(qi)(qi)式(shi)(shi)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)可以水(shui)(shui)(shui)平或垂直安裝(zhuang)(zhuang)。旋(xuan)啟(qi)(qi)式(shi)(shi)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)繞(rao)轉軸作旋(xuan)轉運動,其流(liu)體(ti)阻力(li)(li)一(yi)般(ban)(ban)(ban)小于(yu)升(sheng)降式(shi)(shi)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa),它(ta)適(shi)(shi)用(yong)于(yu)較大(da)(da)口(kou)(kou)徑(jing)(jing)(jing)的(de)(de)(de)(de)場合,安裝(zhuang)(zhuang)位置不(bu)受限制,通常安裝(zhuang)(zhuang)于(yu)水(shui)(shui)(shui)平管(guan)路(lu)(lu)(lu)(lu),它(ta)適(shi)(shi)用(yong)與(yu)較大(da)(da)口(kou)(kou)徑(jing)(jing)(jing)的(de)(de)(de)(de)場合。根據閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)的(de)(de)(de)(de)數目可分為(wei)單(dan)(dan)瓣(ban)(ban)旋(xuan)啟(qi)(qi)式(shi)(shi)、雙瓣(ban)(ban)旋(xuan)啟(qi)(qi)式(shi)(shi)及多瓣(ban)(ban)旋(xuan)啟(qi)(qi)式(shi)(shi)三種。單(dan)(dan)瓣(ban)(ban)旋(xuan)啟(qi)(qi)式(shi)(shi)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)一(yi)般(ban)(ban)(ban)使用(yong)與(yu)中(zhong)等口(kou)(kou)徑(jing)(jing)(jing)的(de)(de)(de)(de)場合。大(da)(da)口(kou)(kou)徑(jing)(jing)(jing)管(guan)路(lu)(lu)(lu)(lu)選(xuan)用(yong)單(dan)(dan)瓣(ban)(ban)旋(xuan)啟(qi)(qi)式(shi)(shi)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)時,為(wei)減小水(shui)(shui)(shui)錘壓力(li)(li),最好(hao)采用(yong)能減小水(shui)(shui)(shui)錘壓力(li)(li)的(de)(de)(de)(de)緩閉(bi)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)。雙瓣(ban)(ban)旋(xuan)啟(qi)(qi)式(shi)(shi)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)適(shi)(shi)用(yong)與(yu)大(da)(da)中(zhong)口(kou)(kou)徑(jing)(jing)(jing)管(guan)路(lu)(lu)(lu)(lu)。對(dui)夾雙瓣(ban)(ban)旋(xuan)啟(qi)(qi)式(shi)(shi)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)結構小、重量(liang)輕,是一(yi)種較快的(de)(de)(de)(de)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa);多瓣(ban)(ban)旋(xuan)啟(qi)(qi)式(shi)(shi)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)適(shi)(shi)用(yong)與(yu)大(da)(da)口(kou)(kou)徑(jing)(jing)(jing)管(guan)路(lu)(lu)(lu)(lu)。  離(li)心(xin)泵(beng)(beng)出(chu)(chu)(chu)口(kou)(kou)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)安裝(zhuang)(zhuang)  ① 旋(xuan)啟(qi)(qi)式(shi)(shi)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)一(yi)般(ban)(ban)(ban)安裝(zhuang)(zhuang)在水(shui)(shui)(shui)平管(guan)道上:對(dui)于(yu)口(kou)(kou)徑(jing)(jing)(jing)DN~80mm的(de)(de)(de)(de)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)...
2020 - 03 - 02
真空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)是一(yi)種旋轉式變容真空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)須有(you)前(qian)級(ji)泵(beng)(beng)(beng)(beng)配合(he)方可使(shi)用(yong)(yong)在(zai)較寬的(de)(de)壓(ya)力(li)范圍內有(you)較大的(de)(de)抽速對(dui)(dui)被抽除(chu)氣(qi)體中(zhong)含有(you)灰塵和水(shui)蒸(zheng)汽不(bu)敏感廣泛(fan)用(yong)(yong)于(yu)冶金(jin)、化工(gong)、食品、電(dian)子(zi)鍍膜等(deng)行(xing)業。包括(kuo)水(shui)環泵(beng)(beng)(beng)(beng)、往復(fu)(fu)泵(beng)(beng)(beng)(beng)、滑閥泵(beng)(beng)(beng)(beng)、旋片泵(beng)(beng)(beng)(beng)、羅茨(ci)泵(beng)(beng)(beng)(beng)和擴散泵(beng)(beng)(beng)(beng)等(deng),目前(qian)這些(xie)泵(beng)(beng)(beng)(beng)是我國國民經濟各行(xing)業應(ying)用(yong)(yong)真空(kong)(kong)(kong)真空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)工(gong)藝(yi)過(guo)程(cheng)中(zhong)必不(bu)可少的(de)(de)主力(li)泵(beng)(beng)(beng)(beng)種。  真空(kong)(kong)(kong)輸運(yun)(yun)、吸(xi)(xi)(xi)(xi)(xi)收(shou)及起吊設(she)備(bei)、都是應(ying)用(yong)(yong)真空(kong)(kong)(kong)與大氣(qi)間存在(zai)壓(ya)力(li)差(cha)所產(chan)生的(de)(de)力(li)來做功的(de)(de)。由(you)于(yu)這種機(ji)(ji)械(xie)能存在(zai)著壓(ya)強處(chu)處(chu)平均的(de)(de)特(te)性,因(yin)而(er)可絕對(dui)(dui)密(mi)接地(di)施加到(dao)任何外(wai)形的(de)(de)平面(mian)(mian)上(shang)。目前(qian)、這些(xie)真空(kong)(kong)(kong)設(she)備(bei)大多(duo)用(yong)(yong)在(zai)吸(xi)(xi)(xi)(xi)(xi)魚、糧食、面(mian)(mian)粉(fen)、煤粉(fen)、煙草、水(shui)泥(ni)、泥(ni)漿(jiang)(jiang)、紙(zhi)漿(jiang)(jiang)、粉(fen)狀礦物(wu)(wu)粉(fen)狀化工(gong)產(chan)品,水(shui)泥(ni)地(di)板,預制(zhi)板、機(ji)(ji)場及公路水(shui)泥(ni)道(dao)的(de)(de)快速吸(xi)(xi)(xi)(xi)(xi)干、車間起吊、機(ji)(ji)床夾具,玻璃裝運(yun)(yun),吸(xi)(xi)(xi)(xi)(xi)乳、吸(xi)(xi)(xi)(xi)(xi)塵。人工(gong)流產(chan)吸(xi)(xi)(xi)(xi)(xi)收(shou)胎(tai)兒(er):吸(xi)(xi)(xi)(xi)(xi)痰、吸(xi)(xi)(xi)(xi)(xi)胸膜積水(shui)、膿液、吸(xi)(xi)(xi)(xi)(xi)腸以(yi)及吸(xi)(xi)(xi)(xi)(xi)收(shou)原子(zi)彈爆炸所產(chan)生的(de)(de)輻(fu)射塵埃等(deng)消費作(zuo)(zuo)業中(zhong)。這些(xie)設(she)備(bei)均具有(you)構造簡單,易于(yu)操作(zuo)(zuo)維護(hu)、運(yun)(yun)輸、起吊吸(xi)(xi)(xi)(xi)(xi)收(shou)過(guo)程(cheng)中(zhong)無震動、消費效(xiao)率高、運(yun)(yun)送易損壞物(wu)(wu)件平安(an)牢靠、對(dui)(dui)環境無污染等(deng)特(te)性。因(yin)而(er)具有(you)寬廣的(de)(de)應(ying)用(yong)(yong)范圍和前(qian)景。  真空(kong)(kong)(kong)外(wai)型(xing)也是應(ying)用(yong)(yong)壓(ya)差(cha)力(li)的(de)(de)一(yi)個重要方面(mian)(mian),近年來在(zai)平面(mian)(mian)軍(jun)用(yong)(yong)地(di)圖、盲人書籍(ji)、示(shi)數摸(mo)型(xing)、高級(ji)陶(tao)瓷、混(hun)凝土予制(zhi)件、電(dian)冰箱洗衣機(ji)(ji)板件、玩具、復(fu)(fu)制(zhi)浮雕(diao)和文物(wu)(wu)、行(xing)波管和返波管中(zhong)的(de)(de)細旋支(zhi)柱成形、質(zhi)譜(pu)儀(yi)中(zhong)剖析室以(yi)及微波系統的(de)(de)波導制(zhi)造方面(mian)(mian)、都普遍(bian)的(de)(de)采用(yong)(yong)了這一(yi)技術。
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發布時間: 2024 - 10 - 17
來源(yuan): 1
深(shen)圳真(zhen)(zhen)空(kong)泵(beng)(beng)生產廠家(jia)恒才(cai)機電(dian)表(biao)示,要保(bao)證康斯(si)頓羅茨真(zhen)(zhen)空(kong)泵(beng)(beng)的(de)(de)長期(qi)(qi)穩定(ding)(ding)(ding)運行,日常(chang)的(de)(de)使(shi)(shi)用與維(wei)護至(zhi)關重要。本文將從(cong)羅茨真(zhen)(zhen)空(kong)泵(beng)(beng)的(de)(de)使(shi)(shi)用、維(wei)護兩大方面(mian)進行深(shen)入探討,以期(qi)(qi)為用戶(hu)提供全面(mian)的(de)(de)指導和建議。康斯(si)頓羅茨真(zhen)(zhen)空(kong)泵(beng)(beng)的(de)(de)維(wei)護1. 定(ding)(ding)(ding)期(qi)(qi)檢(jian)查與清潔定(ding)(ding)(ding)期(qi)(qi)檢(jian)查是(shi)維(wei)護羅茨真(zhen)(zhen)空(kong)泵(beng)(beng)的(de)(de)關鍵。用戶(hu)應定(ding)(ding)(ding)期(qi)(qi)檢(jian)查泵(beng)(beng)體各部件(jian)的(de)(de)緊固情況,確保(bao)無松動現象;觀(guan)察潤滑(hua)油位,及時補充或(huo)更換;檢(jian)查電(dian)機運轉是(shi)否正常(chang),有無異常(chang)聲響或(huo)發熱現象。此外,還需定(ding)(ding)(ding)期(qi)(qi)清理...
發布時間: 2019 - 07 - 10
來源: 86
我公(gong)司生產銷(xiao)售(shou)的(de)(de)(de)(de)水(shui)環式真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)泵在真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)濃(nong)(nong)縮(suo)方面應用廣(guang)泛,尤其(qi)是在制糖(tang)(tang)(tang)(tang)行(xing)業(ye),以下(xia)針對制糖(tang)(tang)(tang)(tang)行(xing)業(ye)的(de)(de)(de)(de)具(ju)(ju)體應用,分析(xi)具(ju)(ju)體工藝流程:糖(tang)(tang)(tang)(tang)廠每加工1000公(gong)斤(jin)的(de)(de)(de)(de)甜菜,可得(de)到約(yue)為(wei)125公(gong)斤(jin)的(de)(de)(de)(de)糖(tang)(tang)(tang)(tang)汁,含糖(tang)(tang)(tang)(tang)率一般為(wei)百(bai)分之(zhi)十幾(ji)。然后將糖(tang)(tang)(tang)(tang)汁放在蒸(zheng)發(fa)罐內(nei)加熱,濃(nong)(nong)縮(suo)成(cheng)含有(you)35%水(shui)分的(de)(de)(de)(de)糖(tang)(tang)(tang)(tang)漿(jiang)。由(you)于(yu)水(shui)分含量(liang)仍然很(hen)多(duo),糖(tang)(tang)(tang)(tang)還不能(neng)結晶出(chu)來,這(zhe)時要(yao)(yao)把糖(tang)(tang)(tang)(tang)漿(jiang)放在真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)罐中,再(zai)濃(nong)(nong)縮(suo)成(cheng)含7~8%水(shui)分的(de)(de)(de)(de)精膏(gao)(gao),于(yu)是糖(tang)(tang)(tang)(tang)從飽(bao)和溶(rong)液的(de)(de)(de)(de)糖(tang)(tang)(tang)(tang)膏(gao)(gao)中逐漸(jian)結晶析(xi)出(chu)。 因(yin)為(wei)糖(tang)(tang)(tang)(tang)漿(jiang)的(de)(de)(de)(de)濃(nong)(nong)度(du)很(hen)高,而使沸(fei)點(dian)提高了20,故(gu)糖(tang)(tang)(tang)(tang)漿(jiang)的(de)(de)(de)(de)沸(fei)點(dian)為(wei)100+20=120。在這(zhe)樣高的(de)(de)(de)(de)溫度(du)下(xia)煮糖(tang)(tang)(tang)(tang)(濃(nong)(nong)縮(suo)的(de)(de)(de)(de)過程就(jiu)是煮糖(tang)(tang)(tang)(tang))將會引起糖(tang)(tang)(tang)(tang)分的(de)(de)(de)(de)焦(jiao)化,而使損失增(zeng)加。若在一定(ding)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)度(du)下(xia)熬糖(tang)(tang)(tang)(tang),就(jiu)會使沸(fei)點(dian)大(da)(da)(da)大(da)(da)(da)降低(di)。因(yin)此(ci)糖(tang)(tang)(tang)(tang)漿(jiang)濃(nong)(nong)縮(suo)成(cheng)搪膏(gao)(gao),要(yao)(yao)在一定(ding)的(de)(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)度(du)情況下(xia)進行(xing)。 開始由(you)于(yu)水(shui)分大(da)(da)(da)量(liang)存在,糖(tang)(tang)(tang)(tang)漿(jiang)遠(yuan)沒(mei)有(you)達到飽(bao)和狀態,故(gu)應在最大(da)(da)(da)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)度(du)下(xia)進行(xing)水(shui)分蒸(zheng)發(fa),所(suo)需真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)度(du)為(wei)-620~-640毫米汞(gong)柱(zhu),其(qi)沸(fei)點(dian)相應為(wei)68-70。溶(rong)液的(de)(de)(de)(de)濃(nong)(nong)度(du)增(zeng)加,沸(fei)點(dian)必(bi)(bi)然升高。隨著糖(tang)(tang)(tang)(tang)漿(jiang)的(de)(de)(de)(de)不斷(duan)濃(nong)(nong)縮(suo)在同一真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)度(du)下(xia)糖(tang)(tang)(tang)(tang)漿(jiang)的(de)(de)(de)(de)溫度(du)會逐漸(jian)升高至(zhi)74~77。真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)熬糖(tang)(tang)(tang)(tang)的(de)(de)(de)(de)第二階段(duan)可在低(di)的(de)(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)度(du)下(xia)進行(xing),所(suo)需真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)度(du)為(wei)-420~-460毫米汞(gong)柱(zhu),沸(fei)點(dian)約(yue)為(wei)93-94。選擇(ze)正確的(de)(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)泵能(neng)夠給企業(ye)提高生產效率,節約(yue)能(neng)源.合適的(de)(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)度(du)能(neng)夠讓(rang)產品質(zhi)量(liang)的(de)(de)(de)(de)得(de)到保(bao)證.穩定(ding)的(de)(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)度(du)能(neng)夠減少下(xia)次產品的(de)(de)(de)(de)出(chu)現.在制糖(tang)(tang)(tang)(tang)行(xing)業(ye)來說,選擇(ze)合適的(de)(de)(de)(de)水(shui)環式真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)泵是十分必(bi)(bi)要(yao)(yao)的(de)(de)(de)(de).
發(fa)布時間: 2019 - 07 - 09
來源: 93
對(dui)液(ye)(ye)(ye)態成(cheng)(cheng)品(pin)(pin)的(de)(de)(de)(de)精(jing)(jing)制(zhi)(zhi)過程,最后(hou)一(yi)步工(gong)藝往往是精(jing)(jing)餾(liu)。其(qi)(qi)目的(de)(de)(de)(de)主(zhu)要(yao)為(wei):保(bao)持產品(pin)(pin)的(de)(de)(de)(de)物理(li)化學性(xing)質;產品(pin)(pin)的(de)(de)(de)(de)精(jing)(jing)制(zhi)(zhi)收(shou)率(lv)盡(jin)可(ke)能(neng)高(gao);以產品(pin)(pin)為(wei)正餾(liu)份,除去(qu)作(zuo)(zuo)為(wei)溶劑的(de)(de)(de)(de)低沸(fei)部分和下(xia)腳料的(de)(de)(de)(de)高(gao)沸(fei)部分,從而(er)達(da)到產品(pin)(pin)質量指(zhi)標。液(ye)(ye)(ye)態產品(pin)(pin)通常(chang)具(ju)有(you)受熱(re)變質的(de)(de)(de)(de)熱(re)敏性(xing),因此(ci)在(zai)(zai)(zai)較低溫度下(xia)實現精(jing)(jing)制(zhi)(zhi)顯得尤(you)為(wei)重要(yao)。 同(tong)樣(yang)地(di),從經(jing)濟以及環境保(bao)護方面的(de)(de)(de)(de)考慮,對(dui)脫除的(de)(de)(de)(de)溶劑必須(xu)回(hui)(hui)收(shou)使(shi)用(yong)。液(ye)(ye)(ye)態產品(pin)(pin)的(de)(de)(de)(de)精(jing)(jing)制(zhi)(zhi)要(yao)求盡(jin)可(ke)能(neng)在(zai)(zai)(zai)高(gao)的(de)(de)(de)(de)真(zhen)空(kong)(kong)度下(xia)進行,通常(chang)操作(zuo)(zuo)壓力在(zai)(zai)(zai)10Pa以下(xia)(1個標準大氣壓為(wei)101325Pa)。滿足此(ci)條件(jian)的(de)(de)(de)(de)配(pei)(pei)置有(you):滑閥(fa)真(zhen)空(kong)(kong)泵(beng)、爪式(shi)(shi)泵(beng)兩種單泵(beng)、羅茨(ci)真(zhen)空(kong)(kong)機(ji)組(zu)(zu)(zu)。 (1)羅茨(ci)真(zhen)空(kong)(kong)機(ji)組(zu)(zu)(zu)。 其(qi)(qi)運行功(gong)(gong)率(lv)相當(dang)(dang)(dang)高(gao)。對(dui)于前級(ji)(ji)泵(beng)達(da)到相當(dang)(dang)(dang)于LH-70PH型爪式(shi)(shi)泵(beng)同(tong)樣(yang)抽氣量的(de)(de)(de)(de)機(ji)組(zu)(zu)(zu),其(qi)(qi)機(ji)組(zu)(zu)(zu)配(pei)(pei)用(yong)功(gong)(gong)率(lv)為(wei)20Kw,對(dui)于日(ri)夜(ye)連續運行的(de)(de)(de)(de)真(zhen)空(kong)(kong)產生裝置來(lai)說,12.5Kw的(de)(de)(de)(de)差(cha)別,一(yi)年下(xia)來(lai),意味著9萬元的(de)(de)(de)(de)電(dian)費差(cha)距(以每(mei)年工(gong)作(zuo)(zuo)300個晝(zhou)夜(ye)計。電(dian)費以1元/度計)。 (2)滑閥(fa)泵(beng)。 其(qi)(qi)必須(xu)有(you)真(zhen)空(kong)(kong)泵(beng)方能(neng)有(you)效工(gong)作(zuo)(zuo)。當(dang)(dang)(dang)氣體(ti)流經(jing)真(zhen)空(kong)(kong)泵(beng)時,難免(mian)將真(zhen)空(kong)(kong)泵(beng)油夾帶出去(qu)。這就(jiu)意味著不能(neng)直接(jie)套(tao)用(yong)所回(hui)(hui)收(shou)的(de)(de)(de)(de)溶劑,或者浪費掉并污(wu)染環境。此(ci)外,滑閥(fa)泵(beng)對(dui)操作(zuo)(zuo)維護要(yao)求較高(gao),在(zai)(zai)(zai)寒(han)冷季節,開關(guan)機(ji)稍有(you)不慎,就(jiu)非常(chang)容易損壞。 (3)爪式(shi)(shi)泵(beng)。 采用(yong)爪式(shi)(shi)泵(beng),泵(beng)后(hou)的(de)(de)(de)(de)常(chang)壓回(hui)(hui)收(shou)溶劑沒有(you)問題。另外,由于其(qi)(qi)本身(shen)結構(gou)較好、加工(gong)精(jing)(jing)良、附屬(shu)裝置齊(qi)全(quan),一(yi)旦投入使(shi)用(yong),其(qi)(qi)使(shi)用(yong)要(yao)求低、使(shi)用(yong)范(fan)圍廣、使(shi)用(yong)壽命(ming)長、清洗維護保(bao)養方便。當(dang)(dang)(dang)需(xu)要(yao)更高(gao)的(de)(de)(de)(de)真(zhen)空(kong)(kong)時,其(qi)(qi)能(neng)作(zuo)(zuo)為(wei)前級(ji)(ji)泵(beng)方便地(di)組(zu)(zu)(zu)成(cheng)(cheng)真(zhen)空(kong)(kong)機(ji)組(zu)(zu)(zu)。 由此(ci)可(ke)見,在(zai)(zai)(zai)液(ye)(ye)(ye)態成(cheng)(cheng)品(pin)(pin)高(gao)真(zhen)空(kong)(kong)精(jing)(jing)制(zhi)(zhi)的(de)(de)(de)(de)場合,爪式(shi)(shi)泵(beng)是一(yi)種相當(dang)(dang)(dang)合理(li)的(de)(de)(de)(de)選配(pei)(pei)方案。
發布時間(jian): 2019 - 07 - 09
來源: 66
真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)冷(leng)(leng)(leng)(leng)卻(que)(que)(que)(que)對(dui)(dui)肉(rou)(rou)(rou)類(lei)(lei)保(bao)鮮(xian)的(de)(de)重要性不言而喻,下面(mian)我(wo)們(men)(men)就來了(le)(le)解一下吧.尤(you)其(qi)在夏(xia)季,肉(rou)(rou)(rou)類(lei)(lei)產品(pin)(pin)的(de)(de)保(bao)鮮(xian)是(shi)(shi)一個(ge)非常(chang)困惱屠戶的(de)(de)問題,本文著重講真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)冷(leng)(leng)(leng)(leng)卻(que)(que)(que)(que)對(dui)(dui)肉(rou)(rou)(rou)類(lei)(lei)食(shi)(shi)品(pin)(pin)保(bao)鮮(xian)的(de)(de)具體方法,真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)冷(leng)(leng)(leng)(leng)卻(que)(que)(que)(que)是(shi)(shi)一種快(kuai)(kuai)速(su)蒸發的(de)(de)冷(leng)(leng)(leng)(leng)卻(que)(que)(que)(que)方法,它已經被(bei)廣泛(fan)應用(yong)(yong)(yong)(yong)(yong)于(yu)去除花(hua)卉和(he)果蔬內(nei)部的(de)(de)田間(jian)(jian)熱(re),主要應用(yong)(yong)(yong)(yong)(yong)的(de)(de)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)是(shi)(shi)旋片式(shi)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng),真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)度(du)(du)高會讓肉(rou)(rou)(rou)類(lei)(lei)的(de)(de)保(bao)質(zhi)期維持的(de)(de)更久!    以降低這些(xie)(xie)產品(pin)(pin)的(de)(de)溫度(du)(du)和(he)延長(chang)壽命。近幾年來,食(shi)(shi)品(pin)(pin)安全(quan)問題,尤(you)其(qi)是(shi)(shi)肉(rou)(rou)(rou)制(zhi)品(pin)(pin)的(de)(de)安全(quan)問題已經越來越受(shou)到世界各(ge)國人(ren)們(men)(men)的(de)(de)重視。為了(le)(le)減少肉(rou)(rou)(rou)制(zhi)品(pin)(pin)中的(de)(de)細菌(jun)繁殖和(he)降低污(wu)染(ran),必須使肉(rou)(rou)(rou)制(zhi)品(pin)(pin)能夠(gou)快(kuai)(kuai)速(su)冷(leng)(leng)(leng)(leng)卻(que)(que)(que)(que)。傳統的(de)(de)冷(leng)(leng)(leng)(leng)卻(que)(que)(que)(que)方法如(ru)風冷(leng)(leng)(leng)(leng)、水(shui)(shui)冷(leng)(leng)(leng)(leng)等方法的(de)(de)冷(leng)(leng)(leng)(leng)卻(que)(que)(que)(que)時(shi)間(jian)(jian)比較長(chang),需6~10小時(shi)左右,已經不能夠(gou)滿足產品(pin)(pin)的(de)(de)快(kuai)(kuai)速(su)冷(leng)(leng)(leng)(leng)卻(que)(que)(que)(que)。因(yin)此,真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)冷(leng)(leng)(leng)(leng)卻(que)(que)(que)(que)的(de)(de)應用(yong)(yong)(yong)(yong)(yong)就延伸食(shi)(shi)品(pin)(pin)工(gong)業中,并在熟(shu)肉(rou)(rou)(rou)以及肉(rou)(rou)(rou)制(zhi)品(pin)(pin)的(de)(de)快(kuai)(kuai)速(su)冷(leng)(leng)(leng)(leng)卻(que)(que)(que)(que)中發揮了(le)(le)極大的(de)(de)作用(yong)(yong)(yong)(yong)(yong)。為了(le)(le)使熟(shu)肉(rou)(rou)(rou)能夠(gou)快(kuai)(kuai)速(su)冷(leng)(leng)(leng)(leng)卻(que)(que)(que)(que),國外(wai)許多學者從不同角度(du)(du)對(dui)(dui)熟(shu)肉(rou)(rou)(rou)的(de)(de)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)冷(leng)(leng)(leng)(leng)卻(que)(que)(que)(que)進行了(le)(le)實(shi)驗研究(jiu)。目前,真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)冷(leng)(leng)(leng)(leng)卻(que)(que)(que)(que)在熟(shu)肉(rou)(rou)(rou)中的(de)(de)實(shi)驗研究(jiu)主要從影(ying)響真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)冷(leng)(leng)(leng)(leng)卻(que)(que)(que)(que)速(su)率(lv)、質(zhi)量(liang)損(sun)失(shi)的(de)(de)因(yin)素進行了(le)(le)研究(jiu),影(ying)響真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)冷(leng)(leng)(leng)(leng)卻(que)(que)(que)(que)速(su)率(lv)和(he)質(zhi)徽損(sun)失(shi)的(de)(de)主要因(yin)素有(you):產品(pin)(pin)的(de)(de)密(mi)度(du)(du)、孔隙率(lv)、收縮率(lv)和(he)水(shui)(shui)分含量(liang)。還有(you)一些(xie)(xie)過程條件(jian),如(ru)鹽水(shui)(shui)注(zhu)射量(liang)、是(shi)(shi)否翻轉(zhuan)、樣品(pin)(pin)粉碎和(he)包裝等也(ye)會對(dui)(dui)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)冷(leng)(leng)(leng)(leng)卻(que)(que)(que)(que)速(su)率(lv)和(he)質(zhi)量(liang)損(sun)失(shi)產生(sheng)影(ying)響。今天我(wo)們(men)(men)了(le)(le)解了(le)(le),旋片式(shi)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)用(yong)(yong)(yong)(yong)(yong)于(yu)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)冷(leng)(leng)(leng)(leng)卻(que)(que)(que)(que)的(de)(de)應用(yong)(yong)(yong)(yong)(yong),后(hou)面(mian)我(wo)們(men)(men)還會分享更多的(de)(de)應用(yong)(yong)(yong)(yong)(yong),敬(jing)請(qing)關注(zhu).
發布時間: 2019 - 07 - 09
來源: 119
大家(jia)可(ke)能(neng)不(bu)(bu)知道真空(kong)應用(yong)(yong)(yong)中的(de)(de)(de)(de)(de)(de)(de)前(qian)級(ji)(ji)(ji)(ji)真空(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)是(shi)(shi)什(shen)么(me)?小面小編(bian)就(jiu)和(he)(he)(he)大家(jia)一(yi)起了(le)解一(yi)下.可(ke)以(yi)(yi)(yi)為(wei)那些(xie)(xie)不(bu)(bu)能(neng)直接(jie)向大氣(qi)(qi)(qi)(qi)排氣(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)另外的(de)(de)(de)(de)(de)(de)(de)泵(beng)(beng)(beng)(beng)(beng)(beng)提供所必需的(de)(de)(de)(de)(de)(de)(de)前(qian)級(ji)(ji)(ji)(ji)壓(ya)(ya)(ya)(ya)(ya)強的(de)(de)(de)(de)(de)(de)(de)泵(beng)(beng)(beng)(beng)(beng)(beng)稱為(wei)前(qian)級(ji)(ji)(ji)(ji)泵(beng)(beng)(beng)(beng)(beng)(beng)。其(qi)(qi)中,有(you)一(yi)些(xie)(xie)泵(beng)(beng)(beng)(beng)(beng)(beng)能(neng)以(yi)(yi)(yi)兩種方式(shi)工(gong)作(zuo)(zuo)(zuo),有(you)時排入大氣(qi)(qi)(qi)(qi),有(you)時排入減壓(ya)(ya)(ya)(ya)(ya)的(de)(de)(de)(de)(de)(de)(de)前(qian)級(ji)(ji)(ji)(ji)壓(ya)(ya)(ya)(ya)(ya)強中。 前(qian)級(ji)(ji)(ji)(ji)真空(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)概(gai)述 將氣(qi)(qi)(qi)(qi)體從低(di)(di)壓(ya)(ya)(ya)(ya)(ya)強區(qu)域(yu)輸送至大氣(qi)(qi)(qi)(qi)壓(ya)(ya)(ya)(ya)(ya)的(de)(de)(de)(de)(de)(de)(de)抽氣(qi)(qi)(qi)(qi)裝置可(ke)以(yi)(yi)(yi)分為(wei)三種主(zhu)要類(lei)(lei)(lei)型(xing): (a)氣(qi)(qi)(qi)(qi)體的(de)(de)(de)(de)(de)(de)(de)輸運是(shi)(shi)通過一(yi)級(ji)(ji)(ji)(ji)或(huo)多級(ji)(ji)(ji)(ji)壓(ya)(ya)(ya)(ya)(ya)縮(suo)(suo)來實現。 (b)通過動量轉移輸運氣(qi)(qi)(qi)(qi)體。 (c)氣(qi)(qi)(qi)(qi)體吸附在(zai)(zai)低(di)(di)溫表面上(shang),而后再(zai)加熱(re),再(zai)生出來。 機械真空(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)是(shi)(shi)第一(yi)類(lei)(lei)(lei)泵(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)(de)(de)(de)代表,而噴射(she)泵(beng)(beng)(beng)(beng)(beng)(beng)和(he)(he)(he)吸附泵(beng)(beng)(beng)(beng)(beng)(beng)是(shi)(shi)第二類(lei)(lei)(lei)泵(beng)(beng)(beng)(beng)(beng)(beng)和(he)(he)(he)第三類(lei)(lei)(lei)泵(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)(de)(de)(de)代表。工(gong)作(zuo)(zuo)(zuo)壓(ya)(ya)(ya)(ya)(ya)強區(qu)域(yu) 雖(sui)然(ran)各種類(lei)(lei)(lei)型(xing)的(de)(de)(de)(de)(de)(de)(de)泵(beng)(beng)(beng)(beng)(beng)(beng)都能(neng)對(dui)大氣(qi)(qi)(qi)(qi)排氣(qi)(qi)(qi)(qi),但它們(men)的(de)(de)(de)(de)(de)(de)(de)有(you)效工(gong)作(zuo)(zuo)(zuo)區(qu)城的(de)(de)(de)(de)(de)(de)(de)變化(hua)取決于(yu)(yu)(yu)其(qi)(qi)工(gong)作(zuo)(zuo)(zuo)原理。如(ru)果不(bu)(bu)用(yong)(yong)(yong)密(mi)封(feng)液(ye)(ye),就(jiu)不(bu)(bu)能(neng)保持(chi)高壓(ya)(ya)(ya)(ya)(ya)縮(suo)(suo)比,機械間隙不(bu)(bu)可(ke)能(neng)做得小到足以(yi)(yi)(yi)有(you)效地阻止二次膨脹或(huo)返流(liu)。沒有(you)密(mi)封(feng)液(ye)(ye)的(de)(de)(de)(de)(de)(de)(de)泵(beng)(beng)(beng)(beng)(beng)(beng)很(hen)適于(yu)(yu)(yu)在(zai)(zai)大氣(qi)(qi)(qi)(qi)壓(ya)(ya)(ya)(ya)(ya)附近(jin)工(gong)作(zuo)(zuo)(zuo)。由(you)于(yu)(yu)(yu)壓(ya)(ya)(ya)(ya)(ya)縮(suo)(suo)熱(re)難于(yu)(yu)(yu)散掉,一(yi)些(xie)(xie)干式(shi)機械泵(beng)(beng)(beng)(beng)(beng)(beng),尤其(qi)(qi)羅(luo)茨泵(beng)(beng)(beng)(beng)(beng)(beng)和(he)(he)(he)千(qian)式(shi)螺旋壓(ya)(ya)(ya)(ya)(ya)縮(suo)(suo)機的(de)(de)(de)(de)(de)(de)(de)低(di)(di)壓(ya)(ya)(ya)(ya)(ya)強工(gong)作(zuo)(zuo)(zuo)受到限制(zhi)。這些(xie)(xie)泵(beng)(beng)(beng)(beng)(beng)(beng)最好在(zai)(zai)30OTorr以(yi)(yi)(yi)上(shang)工(gong)作(zuo)(zuo)(zuo)。若(ruo)使用(yong)(yong)(yong)如(ru)碳(tan)、石墨化(hua)鑄鐵以(yi)(yi)(yi)及高溫下合成的(de)(de)(de)(de)(de)(de)(de)材料,那么(me),由(you)于(yu)(yu)(yu)這些(xie)(xie)材料的(de)(de)(de)(de)(de)(de)(de)自潤滑性能(neng),可(ke)將干式(shi)旋片泵(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)(de)(de)(de)工(gong)作(zuo)(zuo)(zuo)區(qu)域(yu)延(yan)伸到150Torr,在(zai)(zai)同樣的(de)(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)強區(qu)域(yu),也可(ke)以(yi)(yi)(yi)有(you)效地利用(yong)(yong)(yong)液(ye)(ye)環泵(beng)(beng)(beng)(beng)(beng)(beng)、往復式(shi)活塞泵(beng)(beng)(beng)(beng)(beng)(beng)以(yi)(yi)(yi)及效率較低(di)(di)的(de)(de)(de)(de)(de)(de)(de)噴射(she)泵(beng)(beng)(beng)(beng)(beng)(beng)。若(ruo)用(yong)(yong)(yong)雙級(ji)(ji)(ji)(ji)液(ye)(ye)環泵(beng)(beng)(beng)(beng)(beng)(beng)、無閥多片泵(beng)(beng)(beng)(beng)(beng)(beng)、雙級(ji)(ji)(ji)(ji)往復式(shi)活塞泵(beng)(beng)(beng)(beng)(beng)(beng)、液(ye)(ye)體噴射(she)泵(beng)(beng)(beng)(beng)(beng)(beng)以(yi)(yi)(yi)及雙級(ji)(ji)(ji)(ji)蒸汽(qi)噴射(she)泵(beng)(beng)(beng)(beng)(beng)(beng),甚至可(ke)將壓(ya)(ya)(ya)(ya)(ya)強區(qu)域(yu)延(yan)伸至大約30Torr.當(dang)工(gong)作(zuo)(zuo)(zuo)壓(ya)(ya)(ya)(ya)(ya)強進一(yi)步降低(di)(di)時,比較簡單(dan)的(de)(de)(de)(de)(de)(de)(de)泵(beng)(beng)(beng)(beng)(beng)(beng)可(ke)能(neng)不(bu)(bu)再(zai)適用(yong)(yong)(yong)了(le),必須用(yong)(yong)(yong)多級(ji)(ji)(ji)(ji)旋轉油(you)封(feng)泵(beng)(beng)(beng)(beng)(beng)(beng),并(bing)選(xuan)擇低(di)(di)蒸汽(qi)壓(ya)(ya)(ya)(ya)(ya)的(de)(de)(de)(de)(de)(de)(de)密(mi)封(feng)液(ye)(ye)。單(dan)級(ji)(ji)(ji)(ji)泵(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)(de)(de)(de)有(you)效工(gong)作(zuo)(zuo)(zuo)壓(ya)(ya)(ya)(ya)(ya)強區(qu)城主(zhu)要是(shi)(shi)由(you)于(yu)(yu)(yu)油(you)污染影(ying)響,因而將其(qi)(qi)限制(zhi)到0.lTorr。由(you)于(yu)(yu)(yu)同樣的(de)(de)(de)(de)(de)(de)(de)影(ying)響,雙級(ji)(ji)(ji)(ji)油(you)封(feng)泵(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)(de)(de)(de)低(di)(di)壓(ya)(ya)(ya)(ya)(ya)工(gong)作(zuo)(zuo)(zuo)限,稍(shao)低(di)(di)于(yu)(yu)(yu)10mTorr。約為(wei)1mTorr的(de)(de)(de)(de)(de)(de)(de)油(you)蒸氣(qi)(qi)(qi)(qi)壓(ya)(ya)(ya)(ya)(ya)弧使前(qian)級(ji)(ji)(ji)(ji)接(jie)雙級(ji)(ji)(ji)(ji)油(you)封(feng)泵(beng)(beng)(beng)(beng)(beng)(beng)(在(zai)(zai)有(you)效抽速(su)下)的(de)(de)(de)(de)(de)(de)(de)羅(luo)茨泵(beng)(beng)(beng)(beng)(beng)(beng)不(bu)(bu)能(neng)在(zai)(zai)10-6Torr區(qu)域(yu)內工(gong)作(zuo)(zuo)(zuo)。對(dui)低(di)(di)于(yu)(yu)(yu)1mTorr的(de)(de)(de)(de)(de)(de)(de)抽氣(qi)(qi)(qi)(qi),用(yong)(yong)(yong)其(qi)(qi)他抽氣(qi)(qi)(qi)(qi)設...
發布時間: 2019 - 07 - 09
來源: 98
真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)裝(zhuang)置(zhi)(zhi)自(zi)(zi)動(dong)(dong)控(kong)(kong)(kong)(kong)制(zhi)(zhi)常用(yong)(yong)名(ming)詞(ci)匯術語(yu)有很多(duo)(duo),下面(mian)這些就(jiu)是(shi)小編給(gei)大家(jia)總結的(de)(de).希望能夠給(gei)大家(jia)帶來幫(bang)助.1、被(bei)(bei)(bei)控(kong)(kong)(kong)(kong)制(zhi)(zhi)對(dui)(dui)象(xiang)要求(qiu)實現(xian)控(kong)(kong)(kong)(kong)制(zhi)(zhi)的(de)(de)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)裝(zhuang)置(zhi)(zhi)或(huo)生(sheng)(sheng)產(chan)過(guo)程,稱(cheng)(cheng)之為(wei)(wei)(wei)被(bei)(bei)(bei)控(kong)(kong)(kong)(kong)制(zhi)(zhi)對(dui)(dui)象(xiang)。例如(ru)(ru)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)閥、真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵、真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)鍍膜(mo)機(ji)、真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)熱(re)處理爐(lu)等(deng)。2、測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)裝(zhuang)置(zhi)(zhi)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)被(bei)(bei)(bei)控(kong)(kong)(kong)(kong)制(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)變化的(de)(de)裝(zhuang)置(zhi)(zhi)。例如(ru)(ru):真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)計(ji)、溫度計(ji)、膜(mo)厚(hou)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)儀等(deng)。3、調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)裝(zhuang)置(zhi)(zhi)(調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)器(qi))它把測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)裝(zhuang)置(zhi)(zhi)所測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)的(de)(de)被(bei)(bei)(bei)控(kong)(kong)(kong)(kong)制(zhi)(zhi)童與(yu)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)工(gong)藝所需要保(bao)持(chi)的(de)(de)給(gei)定(ding)(ding)值(zhi)(zhi)(zhi)相比較,得出(chu)(chu)偏差(cha)值(zhi)(zhi)(zhi),并按設計(ji)好的(de)(de)運算規(gui)律進行運算,發出(chu)(chu)信(xin)(xin)號,使(shi)控(kong)(kong)(kong)(kong)制(zhi)(zhi)執(zhi)行機(ji)構(gou)動(dong)(dong)作(zuo),以(yi)消除被(bei)(bei)(bei)控(kong)(kong)(kong)(kong)制(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)與(yu)給(gei)定(ding)(ding)值(zhi)(zhi)(zhi)的(de)(de)偏差(cha)。如(ru)(ru)模擬PID(比例、積分、微分)調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)器(qi)、數字PID調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)器(qi)(即單片機(ji)、計(ji)算機(ji))等(deng)。在(zai)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)裝(zhuang)置(zhi)(zhi)的(de)(de)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)度控(kong)(kong)(kong)(kong)制(zhi)(zhi)中,它通常與(yu)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)裝(zhuang)置(zhi)(zhi)的(de)(de)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)規(gui)及(ji)執(zhi)行機(ji)構(gou)的(de)(de)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)閥組合(he)在(zai)一起,構(gou)成壓(ya)力控(kong)(kong)(kong)(kong)制(zhi)(zhi)儀。4、執(zhi)行機(ji)構(gou)它接受調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)裝(zhuang)置(zhi)(zhi)發出(chu)(chu)的(de)(de)信(xin)(xin)號,產(chan)生(sheng)(sheng)調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)作(zuo)用(yong)(yong),以(yi)消除被(bei)(bei)(bei)控(kong)(kong)(kong)(kong)制(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)與(yu)給(gei)定(ding)(ding)值(zhi)(zhi)(zhi)的(de)(de)偏差(cha)。如(ru)(ru)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)室中調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)度的(de)(de)調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)閥及(ji)調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)加熱(re)溫度的(de)(de)調(diao)(diao)(diao)(diao)(diao)功器(qi)均屬此類機(ji)構(gou)。5、被(bei)(bei)(bei)控(kong)(kong)(kong)(kong)制(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)系(xi)(xi)(xi)指被(bei)(bei)(bei)控(kong)(kong)(kong)(kong)制(zhi)(zhi)對(dui)(dui)象(xiang)內(nei)要求(qiu)實現(xian)控(kong)(kong)(kong)(kong)制(zhi)(zhi)的(de)(de)參數。例如(ru)(ru):壓(ya)力、溫度、流量(liang)(liang)(liang)(liang)(liang)(liang)(liang)、膜(mo)厚(hou)等(deng)。6、測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)值(zhi)(zhi)(zhi)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)裝(zhuang)置(zhi)(zhi)所測(ce)(ce)(ce)得的(de)(de)被(bei)(bei)(bei)控(kong)(kong)(kong)(kong)制(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)的(de)(de)實際值(zhi)(zhi)(zhi)。7、給(gei)定(ding)(ding)值(zhi)(zhi)(zhi)被(bei)(bei)(bei)控(kong)(kong)(kong)(kong)制(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)要求(qiu)保(bao)持(chi)恒定(ding)(ding)或(huo)按預定(ding)(ding)規(gui)律變化的(de)(de)規(gui)定(ding)(ding)值(zhi)(zhi)(zhi)。8、偏差(cha)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)值(zhi)(zhi)(zhi)與(yu)給(gei)定(ding)(ding)值(zhi)(zhi)(zhi)之差(cha)。9、擾動(dong)(dong)干(gan)擾它是(shi)使(shi)被(bei)(bei)(bei)控(kong)(kong)(kong)(kong)制(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)產(chan)生(sheng)(sheng)變化的(de)(de)因素。擾動(dong)(dong)分兩種:一種為(wei)(wei)(wei)控(kong)(kong)(kong)(kong)制(zhi)(zhi)系(xi)(xi)(xi)統(tong)內(nei)各個環節(jie)(jie)(jie)產(chan)生(sheng)(sheng)的(de)(de)擾動(dong)(dong),稱(cheng)(cheng)為(wei)(wei)(wei)內(nei)擾;另(ling)一種為(wei)(wei)(wei)控(kong)(kong)(kong)(kong)制(zhi)(zhi)系(xi)(xi)(xi)統(tong)以(yi)外對(dui)(dui)系(xi)(xi)(xi)統(tong)產(chan)生(sheng)(sheng)的(de)(de)干(gan)擾,稱(cheng)(cheng)為(wei)(wei)(wei)外擾。10、反(fan)饋(kui)把輸出(chu)(chu)信(xin)(xin)號送回(hui)到(dao)(dao)(dao)輸人(ren)(ren)端,以(yi)增強或(huo)減弱輸人(ren)(ren)信(xin)(xin)號的(de)(de)效應稱(cheng)(cheng)為(wei)(wei)(wei)反(fan)饋(kui)。凡使(shi)輸人(ren)(ren)信(xin)(xin)號增強者稱(cheng)(cheng)為(wei)(wei)(wei)正反(fan)饋(kui);反(fan)之,則稱(cheng)(cheng)為(wei)(wei)(wei)負反(fan)饋(kui)。在(zai)自(zi)(zi)動(dong)(dong)控(kong)(kong)(kong)(kong)制(zhi)(zhi)系(xi)(xi)(xi)統(tong)中多(duo)(duo)采用(yong)(yong)負反(fan)饋(kui)。11、調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)過(guo)程系(xi)(xi)(xi)指控(kong)(kong)(kong)(kong)制(zhi)(zhi)系(xi)(xi)(xi)統(tong)受到(dao)(dao)(dao)加外信(xin)(xin)號(給(gei)定(ding)(ding)值(zhi)(zhi)(zhi)或(huo)擾動(dong)(dong))作(zuo)用(yong)(yong)后,原來的(de)(de)平(ping)(ping)衡(heng)(heng)狀(zhuang)態(tai)(tai)遭到(dao)(dao)(dao)破(po)壞,由于自(zi)(zi)動(dong)(dong)控(kong)(kong)(kong)(kong)制(zhi)(zhi)裝(zhuang)置(zhi)(zhi)的(de)(de)調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)作(zuo)用(yong)(yong),使(shi)被(bei)(bei)(bei)控(kong)(kong)(kong)(kong)制(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)回(hui)復(fu)到(dao)(dao)(dao)原來的(de)(de)平(ping)(ping)衡(heng)(heng)狀(zhuang)態(tai)(tai),或(huo)過(guo)渡到(dao)(dao)(dao)新的(de)(de)平(ping)(ping)衡(heng)(heng)狀(zhuang)態(tai)(tai)的(de)(de)過(guo)程。12、位式調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)系(xi)(xi)(xi)指被(bei)(bei)(bei)控(kong)(kong)(kong)(kong)制(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)偏離(li)給(gei)定(ding)(ding)值(zhi)(zhi)(zhi)時(shi),調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)器(qi)使(shi)執(zhi)行機(ji)構(gou)全開或(huo)全關的(de)(de)調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)。如(ru)(ru)具有上、下限壓(ya)力給(gei)定(ding)(ding)的(de)(de)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)繼電器(qi)的(de)(de)壓(ya)力調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)。13、比...
發布(bu)時間: 2019 - 07 - 09
來源: 93
正確使用(yong)(yong)(yong)羅茨(ci)真(zhen)空(kong)(kong)(kong)機(ji)(ji)(ji)組是(shi)(shi)(shi)(shi)非常(chang)(chang)重(zhong)要(yao)(yao)(yao)的(de)(de)(de),在(zai)(zai)(zai)使用(yong)(yong)(yong)過(guo)程中(zhong)(zhong)一定要(yao)(yao)(yao)掌(zhang)握使用(yong)(yong)(yong)規(gui)(gui)范和注(zhu)意(yi)事項(xiang)(xiang),避免錯(cuo)誤操作(zuo)(zuo)(zuo)(zuo)造成(cheng)損失(shi).下面(mian)我就帶(dai)大家仔細(xi)的(de)(de)(de)了解一下.1、準(zhun)備工(gong)作(zuo)(zuo)(zuo)(zuo)1.1操做人員(yuan)一定要(yao)(yao)(yao)熟讀配備的(de)(de)(de)產品(pin)(pin)使用(yong)(yong)(yong)說(shuo)明書。1.2在(zai)(zai)(zai)產品(pin)(pin)使用(yong)(yong)(yong)前確保(bao)在(zai)(zai)(zai)產品(pin)(pin)沒有(you)因(yin)長時間放置由環(huan)境因(yin)素導致產品(pin)(pin)產生的(de)(de)(de)因(yin)素。1.3在(zai)(zai)(zai)工(gong)作(zuo)(zuo)(zuo)(zuo)中(zhong)(zhong)如(ru)發(fa)現異常(chang)(chang)聲(sheng)響(xiang)和振動(dong)(dong)時應(ying)(ying)停機(ji)(ji)(ji)排查(cha)(cha)。1.4電(dian)氣設備外(wai)殼必須(xu)接(jie)地或(huo)接(jie)零。2、開(kai)機(ji)(ji)(ji)前的(de)(de)(de)準(zhun)備2.1檢(jian)(jian)(jian)查(cha)(cha)水(shui)(shui)(shui)沖(chong)(chong)泵(beng)(beng)(beng)(前級(ji)泵(beng)(beng)(beng))水(shui)(shui)(shui)箱(xiang)液(ye)位是(shi)(shi)(shi)(shi)否達到水(shui)(shui)(shui)箱(xiang)的(de)(de)(de)3/4以(yi)(yi)上,若(ruo)不(bu)足則(ze)補足。2.2檢(jian)(jian)(jian)查(cha)(cha)水(shui)(shui)(shui)箱(xiang)內所使用(yong)(yong)(yong)的(de)(de)(de)水(shui)(shui)(shui)是(shi)(shi)(shi)(shi)否清(qing)潔,不(bu)允許(xu)(xu)用(yong)(yong)(yong)含有(you)泥沙的(de)(de)(de)污(wu)水(shui)(shui)(shui),以(yi)(yi)免堵塞(sai)管路(lu)(lu),增加水(shui)(shui)(shui)泵(beng)(beng)(beng)葉輪磨(mo)損、增大電(dian)機(ji)(ji)(ji)負荷造成(cheng)故障,影響(xiang)水(shui)(shui)(shui)沖(chong)(chong)泵(beng)(beng)(beng)使用(yong)(yong)(yong)壽命。2.3檢(jian)(jian)(jian)查(cha)(cha)中(zhong)(zhong)間泵(beng)(beng)(beng)及(ji)主泵(beng)(beng)(beng)泵(beng)(beng)(beng)體內的(de)(de)(de)潤滑(hua)油油面(mian)高(gao)(gao)度,必須(xu)達油窗(chuang)的(de)(de)(de)3/4以(yi)(yi)上,同時檢(jian)(jian)(jian)查(cha)(cha)潤滑(hua)油的(de)(de)(de)顏(yan)色,如(ru)出(chu)現乳白色或(huo)黑色雜質較(jiao)多則(ze)通(tong)知機(ji)(ji)(ji)修更換潤滑(hua)油。2.4檢(jian)(jian)(jian)查(cha)(cha)中(zhong)(zhong)間泵(beng)(beng)(beng)及(ji)主泵(beng)(beng)(beng)循(xun)(xun)環(huan)冷(leng)卻水(shui)(shui)(shui)水(shui)(shui)(shui)路(lu)(lu)是(shi)(shi)(shi)(shi)否完好(hao),打開(kai)循(xun)(xun)環(huan)冷(leng)卻水(shui)(shui)(shui)進(jin)(jin)(jin)出(chu)口閥門,檢(jian)(jian)(jian)查(cha)(cha)循(xun)(xun)環(huan)冷(leng)卻進(jin)(jin)(jin)出(chu)水(shui)(shui)(shui)是(shi)(shi)(shi)(shi)否正常(chang)(chang)。2.5檢(jian)(jian)(jian)查(cha)(cha)中(zhong)(zhong)間泵(beng)(beng)(beng)底部(bu)緩沖(chong)(chong)罐排污(wu)閥門是(shi)(shi)(shi)(shi)否關閉(bi)。2.6檢(jian)(jian)(jian)查(cha)(cha)真(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)機(ji)(ji)(ji)組電(dian)路(lu)(lu)完好(hao)及(ji)控制柜各項(xiang)(xiang)指示等是(shi)(shi)(shi)(shi)否正常(chang)(chang)。2.7檢(jian)(jian)(jian)查(cha)(cha)真(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)機(ji)(ji)(ji)組電(dian)極觸點壓力(li)表(biao)中(zhong)(zhong)級(ji)泵(beng)(beng)(beng)、主泵(beng)(beng)(beng)啟(qi)(qi)(qi)動(dong)(dong)壓力(li)是(shi)(shi)(shi)(shi)否正常(chang)(chang)(中(zhong)(zhong)級(ji)泵(beng)(beng)(beng)啟(qi)(qi)(qi)動(dong)(dong)入口壓力(li)為0.065Mpa以(yi)(yi)上,主泵(beng)(beng)(beng)啟(qi)(qi)(qi)動(dong)(dong)入口壓力(li)為0.085Mpa以(yi)(yi)上)。2.8待以(yi)(yi)上事項(xiang)(xiang)檢(jian)(jian)(jian)查(cha)(cha)完畢確認無誤后方可啟(qi)(qi)(qi)動(dong)(dong)真(zhen)空(kong)(kong)(kong)機(ji)(ji)(ji)組。3、運(yun)轉注(zhu)意(yi)事項(xiang)(xiang)3.1真(zhen)空(kong)(kong)(kong)機(ji)(ji)(ji)組在(zai)(zai)(zai)運(yun)轉過(guo)程中(zhong)(zhong)聲(sheng)響(xiang)應(ying)(ying)均勻,無雜音且運(yun)行(xing)中(zhong)(zhong)無不(bu)規(gui)(gui)則(ze)的(de)(de)(de)異常(chang)(chang)震動(dong)(dong)。3.2注(zhu)意(yi)電(dian)動(dong)(dong)機(ji)(ji)(ji)負荷和泵(beng)(beng)(beng)的(de)(de)(de)各部(bu)位溫(wen)升情(qing)況,在(zai)(zai)(zai)正常(chang)(chang)情(qing)況下,泵(beng)(beng)(beng)的(de)(de)(de)最(zui)高(gao)(gao)溫(wen)升不(bu)得(de)超(chao)過(guo)40℃,工(gong)作(zuo)(zuo)(zuo)(zuo)最(zui)高(gao)(gao)溫(wen)度不(bu)得(de)超(chao)過(guo)80℃。3.3在(zai)(zai)(zai)工(gong)作(zuo)(zuo)(zuo)(zuo)中(zhong)(zhong)如(ru)發(fa)現有(you)漏油時,應(ying)(ying)立即停止工(gong)作(zuo)(zuo)(zuo)(zuo),泄(xie)壓后進(jin)(jin)(jin)行(xing)檢(jian)(jian)(jian)查(cha)(cha)、修理。不(bu)允許(xu)(xu)在(zai)(zai)(zai)發(fa)現漏油的(de)(de)(de)現象(xiang)之后,仍繼續進(jin)(jin)(jin)行(xing)工(gong)作(zuo)(zuo)(zuo)(zuo)或(huo)帶(dai)壓進(jin)(jin)(jin)行(xing)檢(jian)(jian)(jian)修。3.4在(zai)(zai)(zai)工(gong)作(zuo)(zuo)(zuo)(zuo)中(zhong)(zhong)必須(xu)保(bao)證循(xun)(xun)環(huan)冷(leng)卻水(shui)(shui)(shui)的(de)(de)(de)正常(chang)(chang)進(jin)(jin)(jin)出(chu)。4、真(zhen)空(kong)(kong)(kong)機(ji)(ji)(ji)組啟(qi)(qi)(qi)動(dong)(dong)4.1打開(kai)中(zhong)(zhong)間泵(beng)(beng)(beng)和主泵(beng)(beng)(beng)循(xun)(xun)環(huan)冷(leng)卻水(shui)(shui)(shui)進(jin)(jin)(jin)出(chu)口閥門,確保(bao)循(xun)(xun)環(huan)冷(leng)卻進(jin)(jin)(jin)出(chu)水(shui)(shui)(shui)正常(chang)(chang)。4.2關閉(bi)水(shui)(shui)(shui)沖(chong)(chong)泵(beng)(beng)(beng)緩沖(chong)(chong)罐排污(wu)閥門,啟(qi)(qi)(qi)動(dong)(dong)水(shui)(shui)(shui)沖(chong)(chong)...
發布時間: 2019 - 07 - 08
來源: 100
以下(xia)(xia)項目是直聯旋(xuan)片(pian)(pian)式(shi)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)在使(shi)用(yong)過(guo)(guo)(guo)程中(zhong)需要注意的(de)(de)(de)事項。如果(guo)(guo)其中(zhong)一(yi)個被(bei)無(wu)意中(zhong)使(shi)用(yong),將影響旋(xuan)片(pian)(pian)式(shi)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)和旋(xuan)片(pian)(pian)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)使(shi)用(yong)壽命。 不(bu)(bu)能泵(beng)(beng)(beng)(beng)(beng)(beng)送(song)(song)(song)含(han)(han)有顆粒,灰(hui)塵或(huo)凝膠狀,含(han)(han)水(shui)(shui),液體(ti)和腐蝕性(xing)(xing)物(wu)質的(de)(de)(de)氣體(ti)。 不(bu)(bu)能泵(beng)(beng)(beng)(beng)(beng)(beng)送(song)(song)(song)含(han)(han)有過(guo)(guo)(guo)多(duo)氧氣的(de)(de)(de)爆炸性(xing)(xing)氣體(ti)或(huo)氣體(ti)。 系(xi)統無(wu)法泄漏與真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)配(pei)套的(de)(de)(de)氣體(ti)和容(rong)器太大而無(wu)法在長期泵(beng)(beng)(beng)(beng)(beng)(beng)送(song)(song)(song)下(xia)(xia)工(gong)作。 不(bu)(bu)能用(yong)作加油(you)(you)(you)(you)泵(beng)(beng)(beng)(beng)(beng)(beng),壓(ya)縮泵(beng)(beng)(beng)(beng)(beng)(beng)等(deng)。儀(yi)器維護保(bao)持旋(xuan)片(pian)(pian)式(shi)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)清(qing)潔,以防止(zhi)雜質被(bei)吸入真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)室。建(jian)議配(pei)置過(guo)(guo)(guo)濾(lv)器。但(dan)是,上(shang)部(bu)界面和過(guo)(guo)(guo)濾(lv)器下(xia)(xia)部(bu)界面之間(jian)的(de)(de)(de)距離(li)約為(wei)整個進(jin)料器高度的(de)(de)(de)3/5。當(dang)水(shui)(shui)量過(guo)(guo)(guo)多(duo)時(shi),可(ke)以通過(guo)(guo)(guo)排水(shui)(shui)塞排出,然后及(ji)時(shi)擰緊(jin)。過(guo)(guo)(guo)濾(lv)器用(yong)作緩(huan)沖,冷卻,過(guo)(guo)(guo)濾(lv)等(deng)。 保(bao)持油(you)(you)(you)(you)位(wei)。不(bu)(bu)應(ying)混合不(bu)(bu)同類型或(huo)等(deng)級(ji)的(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)油(you)(you)(you)(you)。如果(guo)(guo)被(bei)污染,應(ying)及(ji)時(shi)更(geng)換。 儲存,水(shui)(shui)分或(huo)其他揮發(fa)性(xing)(xing)物(wu)質儲存不(bu)(bu)當(dang)進(jin)入真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)室。可(ke)以打(da)開氣鎮閥門凈化。如果(guo)(guo)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)受到影響,請考慮更(geng)換機油(you)(you)(you)(you)。更(geng)換真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)油(you)(you)(you)(you)時(shi),首先(xian)打(da)開泵(beng)(beng)(beng)(beng)(beng)(beng)約30分鐘,以換油(you)(you)(you)(you)。稀釋,釋放臟油(you)(you)(you)(you),同時(shi)排油(you)(you)(you)(you),從空(kong)(kong)(kong)氣入口(kou)緩(huan)慢(man)加入少量透明真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)油(you)(you)(you)(you),以沖洗泵(beng)(beng)(beng)(beng)(beng)(beng)腔(qiang)內部(bu)。 如果(guo)(guo)旋(xuan)片(pian)(pian)式(shi)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)打(da)鼾增加或(huo)突然咬(yao)死,應(ying)迅速切斷電源(yuan)并檢查。
發布(bu)時間(jian): 2019 - 07 - 08
來源: 93
羅(luo)(luo)茨(ci)(ci)(ci)真(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)內部(bu)(bu)(bu)冷卻(que)(que)(que),通(tong)過循(xun)環(huan)(huan)(huan)冷卻(que)(que)(que)空(kong)(kong)(kong)氣(qi)(qi)將(jiang)熱量(liang)從熱源(yuan)帶(dai)走。被抽氣(qi)(qi)體(ti)(ti)(ti)(ti)。當(dang)它(ta)被壓縮(suo)或(huo)排(pai)出(chu)(chu)時(shi),它(ta)被冷卻(que)(que)(que)空(kong)(kong)(kong)氣(qi)(qi)冷卻(que)(que)(que)。因(yin)此(ci)(ci),泵(beng)(beng)(beng)可用于標準泵(beng)(beng)(beng)不能工(gong)作(zuo)(zuo)地點。 泵(beng)(beng)(beng)室可以(yi)(yi)自(zi)冷卻(que)(que)(que),因(yin)為葉(xie)輪和工(gong)作(zuo)(zuo)室具有(you)(you)特殊(shu)的(de)(de)工(gong)作(zuo)(zuo)部(bu)(bu)(bu)件(jian)。當(dang)這個特殊(shu)部(bu)(bu)(bu)件(jian)工(gong)作(zuo)(zuo)時(shi),工(gong)作(zuo)(zuo)室的(de)(de)一部(bu)(bu)(bu)分關閉(bi),阻塞(sai)入(ru)(ru)口和出(chu)(chu)口,并(bing)穿過特殊(shu)通(tong)風口。冷卻(que)(que)(que)氣(qi)(qi)體(ti)(ti)(ti)(ti)從壓力側流出(chu)(chu)或(huo)進(jin)入(ru)(ru)工(gong)作(zuo)(zuo)室,并(bing)從出(chu)(chu)口側充滿加壓冷卻(que)(que)(que)氣(qi)(qi)體(ti)(ti)(ti)(ti),并(bing)且氣(qi)(qi)體(ti)(ti)(ti)(ti)循(xun)環(huan)(huan)(huan)。 氣(qi)(qi)體(ti)(ti)(ti)(ti)循(xun)環(huan)(huan)(huan)冷卻(que)(que)(que)羅(luo)(luo)茨(ci)(ci)(ci)真(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng),特殊(shu)葉(xie)輪頭(tou)控(kong)制冷空(kong)(kong)(kong)氣(qi)(qi)流量(liang)而無(wu)需額外的(de)(de)控(kong)制元件(jian),因(yin)此(ci)(ci)這個內部(bu)(bu)(bu)循(xun)環(huan)(huan)(huan)冷卻(que)(que)(que)羅(luo)(luo)茨(ci)(ci)(ci)真(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)與普通(tong)的(de)(de)羅(luo)(luo)茨(ci)(ci)(ci)真(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)相同,結構簡單干凈。它(ta)將(jiang)冷卻(que)(que)(que)器(qi)連接(jie)到排(pai)氣(qi)(qi)口,冷卻(que)(que)(que)器(qi)安裝在泵(beng)(beng)(beng)殼(ke)的(de)(de)外部(bu)(bu)(bu),便于維(wei)護(hu)和更換。 如果(guo)(guo)冷卻(que)(que)(que)器(qi)設(she)計正確(que)并(bing)且輸(shu)送冷卻(que)(que)(que)氣(qi)(qi)體(ti)(ti)(ti)(ti)的(de)(de)管道尺寸足夠大,則冷卻(que)(que)(que)效果(guo)(guo)良好,因(yin)此(ci)(ci)羅(luo)(luo)茨(ci)(ci)(ci)真(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)可以(yi)(yi)在各種壓差(cha)條件(jian)下工(gong)作(zuo)(zuo)。 泵(beng)(beng)(beng)加熱不僅取決于轉(zhuan)速,循(xun)環(huan)(huan)(huan)冷卻(que)(que)(que)劑(ji)量(liang),還取決于壓差(cha),壓差(cha)是成(cheng)比(bi)例的(de)(de)(與轉(zhuan)速成(cheng)比(bi)例)。此(ci)(ci)外,泵(beng)(beng)(beng)葉(xie)片和泵(beng)(beng)(beng)殼(ke)之間的(de)(de)間隙必須保(bao)持最小(xiao)。這有(you)(you)利于提高(gao)(gao)容(rong)積(ji)效率,以(yi)(yi)實(shi)現更高(gao)(gao)的(de)(de)真(zhen)空(kong)(kong)(kong)度。 氣(qi)(qi)體(ti)(ti)(ti)(ti)循(xun)環(huan)(huan)(huan)冷卻(que)(que)(que)羅(luo)(luo)茨(ci)(ci)(ci)真(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)最適合排(pai)放和壓縮(suo)氣(qi)(qi)體(ti)(ti)(ti)(ti)或(huo)蒸汽的(de)(de)過程。這些排(pai)出(chu)(chu)或(huo)壓縮(suo)的(de)(de)氣(qi)(qi)體(ti)(ti)(ti)(ti)在進(jin)入(ru)(ru)泵(beng)(beng)(beng)之前不應與油或(huo)有(you)(you)害液體(ti)(ti)(ti)(ti)接(jie)觸。低溫(wen)恒溫(wen)器(qi)就是這種情(qing)況。如果(guo)(guo)進(jin)氣(qi)(qi)和排(pai)氣(qi)(qi)之間的(de)(de)壓力差(cha)很大并(bing)且所需的(de)(de)極限真(zhen)空(kong)(kong)(kong)度很高(gao)(gao),請(qing)考慮串聯使(shi)用三個羅(luo)(luo)茨(ci)(ci)(ci)真(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)。除此(ci)(ci)之外,還有(you)(you)水冷或(huo)多級(ji)泵(beng)(beng)(beng)。
發布時間: 2019 - 07 - 08
來源: 74
1.與離(li)心風機(ji)(ji)匹配一般情(qing)況(kuang)下(xia)(xia),真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)范圍(wei)小于-15kPa,可以(yi)(yi)考(kao)慮(lv)選(xuan)用單(dan)級離(li)心風機(ji)(ji)代替真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)。與水(shui)環(huan)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)相(xiang)比,排氣(qi)機(ji)(ji)體(ti)積小,價格低,效率高。排氣(qi)機(ji)(ji)的(de)(de)材料和(he)(he)結(jie)構(gou)的(de)(de)選(xuan)擇(ze)應(ying)(ying)考(kao)慮(lv)潮濕的(de)(de)環(huan)境條件和(he)(he)蘇(su)打混(hun)合物和(he)(he)特(te)性。不(bu)要(yao)(yao)在(zai)(zai)進入排氣(qi)機(ji)(ji)的(de)(de)氣(qi)體(ti)中(zhong)夾帶(dai)太多水(shui)分(fen)(fen)。否則會(hui)影(ying)響(xiang)排氣(qi)機(ji)(ji)的(de)(de)正常(chang)運行并導(dao)致風扇振動。因此(ci),在(zai)(zai)排氣(qi)機(ji)(ji)之前(qian)也安裝(zhuang)有分(fen)(fen)離(li)器(qi)。分(fen)(fen)離(li)器(qi)還(huan)分(fen)(fen)離(li)細纖(xian)維并減少(shao)風扇葉片的(de)(de)結(jie)垢。 2.真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)點(dian)的(de)(de)分(fen)(fen)布和(he)(he)泵(beng)(beng)(beng)(beng)(beng)的(de)(de)數量(liang)的(de)(de)確定(ding)(ding)根(gen)據(ju)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)點(dian)的(de)(de)分(fen)(fen)布來確定(ding)(ding)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)的(de)(de)數量(liang)是(shi)(shi)一項非(fei)常(chang)重要(yao)(yao)的(de)(de)工(gong)作(zuo),直接影(ying)響(xiang)造(zao)(zao)紙(zhi)機(ji)(ji)的(de)(de)造(zao)(zao)紙(zhi),紙(zhi)張質量(liang),工(gong)作(zuo)效率和(he)(he)水(shui)電消耗等。在(zai)(zai)正常(chang)情(qing)況(kuang)下(xia)(xia),造(zao)(zao)紙(zhi)機(ji)(ji)的(de)(de)供應(ying)(ying)商將(jiang)提(ti)供成熟的(de)(de)解決方案,設(she)計院也將(jiang)全面(mian)考(kao)慮(lv)。需要(yao)(yao)注意以(yi)(yi)下(xia)(xia)幾點(dian): (1)每個(ge)毯子(zi)在(zai)(zai)使用期間的(de)(de)不(bu)同時間具有不(bu)同的(de)(de)透氣(qi)性和(he)(he)不(bu)同的(de)(de)使用壽命。工(gong)作(zuo)時,應(ying)(ying)根(gen)據(ju)每個(ge)橡(xiang)皮布的(de)(de)狀況(kuang)調(diao)整(zheng)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)度,以(yi)(yi)達到所需的(de)(de)使用壽命。因此(ci),每個(ge)毯子(zi)都配備獨立的(de)(de)專用真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)是(shi)(shi)最佳選(xuan)擇(ze)。 (2)帶(dai)分(fen)(fen)區的(de)(de)水(shui)環(huan)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)可以(yi)(yi)在(zai)(zai)兩個(ge)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)區域工(gong)作(zuo),也就是(shi)(shi)說,一個(ge)泵(beng)(beng)(beng)(beng)(beng)可以(yi)(yi)作(zuo)為兩個(ge)泵(beng)(beng)(beng)(beng)(beng)使用而不(bu)會(hui)相(xiang)互干擾(rao)。 (3)最好不(bu)要(yao)(yao)在(zai)(zai)一個(ge)泵(beng)(beng)(beng)(beng)(beng)的(de)(de)兩個(ge)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)點(dian)網(wang)(wang)部和(he)(he)壓(ya)(ya)(ya)榨(zha)(zha)部上(shang)工(gong)作(zuo)。網(wang)(wang)部和(he)(he)壓(ya)(ya)(ya)榨(zha)(zha)部的(de)(de)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)點(dian)應(ying)(ying)盡可能(neng)分(fen)(fen)開(kai)(kai)。在(zai)(zai)啟動造(zao)(zao)紙(zhi)機(ji)(ji)的(de)(de)過程中(zhong),首(shou)先打開(kai)(kai)網(wang)(wang)部,然后(hou)(hou)(hou)在(zai)(zai)漿料穩定(ding)(ding)后(hou)(hou)(hou)打開(kai)(kai)壓(ya)(ya)(ya)榨(zha)(zha)部和(he)(he)壓(ya)(ya)(ya)榨(zha)(zha)部真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)。如(ru)(ru)果(guo)先打開(kai)(kai)壓(ya)(ya)(ya)榨(zha)(zha)部真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)吸(xi)塵器(qi),會(hui)對(dui)毛氈造(zao)(zao)成很大的(de)(de)傷(shang)害。因此(ci),真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)分(fen)(fen)為網(wang)(wang)部真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)和(he)(he)壓(ya)(ya)(ya)力真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)。 3.真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)的(de)(de)材料在(zai)(zai)造(zao)(zao)紙(zhi)車間,泵(beng)(beng)(beng)(beng)(beng)上(shang)的(de)(de)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)白水(shui)很小,但由于含有細纖(xian)維,比例非(fei)常(chang)嚴(yan)重,嚴(yan)重影(ying)響(xiang)紙(zhi)張的(de)(de)質量(liang),如(ru)(ru)使用全不(bu)銹鋼(gang)泵(beng)(beng)(beng)(beng)(beng)投資將(jiang)以(yi)(yi)指數方式增(zeng)加,因此(ci)考(kao)慮(lv)使用普通(tong)材料和(he)(he)防污處(chu)理。例如(ru)(ru),Nash泵(beng)(beng)(beng)(beng)(beng)使用泵(beng)(beng)(beng)(beng)(beng)體(ti)襯里聚二烯橡(xiang)膠,Kenfu泵(beng)(beng)(beng)(beng)(beng)體(ti)防腐(fu)(fu)(fu)涂層處(chu)理,有些襯有不(bu)銹鋼(gang)板(ban),使泵(beng)(beng)(beng)(beng)(beng)內壁光滑(hua),不(bu)易結(jie)垢。無論制(zhi)(zhi)造(zao)(zao)商使用哪(na)種(zhong)防腐(fu)(fu)(fu)劑,都必須是(shi)(shi)制(zhi)(zhi)造(zao)(zao)商的(de)(de)成熟技(ji)術。投入使用后(hou)(hou)(hou),噴涂防腐(fu)(fu)(fu)層或不(bu)銹鋼(gang)板(ban)不(bu)應(ying)(ying)脫落,這將(jiang)產生更嚴(yan)重的(de)(de)后(hou)(hou)(hou)果(guo)。 4.輔(fu)助設(she)...
發布時間: 2019 - 07 - 08
來源: 122
在(zai)修理(li)空(kong)(kong)調和(he)制冷(leng)設備時(shi),維修人員通(tong)常(chang)使用(yong)真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)(beng)(beng)疏散系統。真(zhen)(zhen)(zhen)空(kong)(kong)應(ying)(ying)為(wei)-0.1MPa,持續(xu)24小時(shi),并且真(zhen)(zhen)(zhen)空(kong)(kong)度(du)不會(hui)顯著增(zeng)加。  1.真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)(beng)(beng)的(de)(de)結構(gou)和(he)工作原(yuan)理(li)常(chang)用(yong)的(de)(de)真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)(beng)(beng)是旋片(pian)式真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)(beng)(beng),是一(yi)(yi)種(zhong)用(yong)泵(beng)(beng)(beng)油(you)密封的(de)(de)機械泵(beng)(beng)(beng)。轉子(zi)(zi)外圓與泵(beng)(beng)(beng)腔(qiang)(qiang)(qiang)內表面相切(qie),旋轉葉片(pian)安裝在(zai)轉子(zi)(zi)選擇中。在(zai)彈(dan)簧(huang)的(de)(de)作用(yong)下(xia),它總(zong)是與定(ding)(ding)子(zi)(zi)腔(qiang)(qiang)(qiang)壁緊密接(jie)觸。當(dang)偏(pian)(pian)心率(lv)轉子(zi)(zi)在(zai)電機的(de)(de)阻力下(xia)旋轉時(shi),旋轉葉片(pian)也旋轉。順時(shi)針旋轉時(shi),吸(xi)入口連續(xu)吸(xi)入氣(qi)體。進氣(qi)腔(qiang)(qiang)(qiang)不斷膨脹。同時(shi),排氣(qi)腔(qiang)(qiang)(qiang)變得越(yue)來越(yue)小,并且首先被(bei)吸(xi)入的(de)(de)氣(qi)體被(bei)完全壓(ya)縮。氣(qi)壓(ya)上升,在(zai)達到一(yi)(yi)定(ding)(ding)壓(ya)力后(hou),排氣(qi)閥可以通(tong)過泵(beng)(beng)(beng)油(you)沖洗并從排氣(qi)管(guan)(guan)排出(chu)。這個循(xun)環不停止,它可以起到真(zhen)(zhen)(zhen)空(kong)(kong)抽吸(xi)的(de)(de)作用(yong)。   2.常(chang)見(jian)故(gu)障按下(xia)并測(ce)試系統時(shi),確(que)認沒(mei)有(you)(you)漏氣(qi),如果真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)(beng)(beng)和(he)系統管(guan)(guan)道連接(jie)正確(que),如果發現真(zhen)(zhen)(zhen)空(kong)(kong)度(du)低于(yu)規定(ding)(ding)要(yao)求,那么真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)(beng)(beng)必須(xu)是檢(jian)(jian)查是否(fou)有(you)(you)損壞或(huo)質(zhi)量問題。  1)首先檢(jian)(jian)查泵(beng)(beng)(beng)中的(de)(de)油(you)是否(fou)低于(yu)標準管(guan)(guan)路(lu),油(you)質(zhi)是否(fou)被(bei)涂抹,皂(zao)化或(huo)溢(yi)流過低,以致(zhi)氣(qi)體不能順利排出(chu)。  2)檢(jian)(jian)查進氣(qi)閥處的(de)(de)金屬網是否(fou)被(bei)灰塵或(huo)異(yi)物堵塞,導致(zhi)吸(xi)氣(qi)回路(lu)失效(xiao)或(huo)效(xiao)率(lv)下(xia)降。  3)檢(jian)(jian)查電機驅動皮帶是否(fou)過松和(he)滑動,導致(zhi)偏(pian)(pian)心率(lv)為(wei)轉子(zi)(zi)。 4)檢(jian)(jian)查真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)(beng)(beng)的(de)(de)抽速(su)是否(fou)適合(he)泵(beng)(beng)(beng)系統。如果是“小馬(ma)拉大(da)車”,電量不夠。  5)在(zai)上述原(yuan)因消除后(hou),應(ying)(ying)拆(chai)卸真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)(beng)(beng),如果損壞,應(ying)(ying)檢(jian)(jian)查并修理(li)或(huo)更換密封件(jian)(jian),轉子(zi)(zi)彈(dan)簧(huang),排氣(qi)閥和(he)其(qi)他部件(jian)(jian)泵(beng)(beng)(beng)腔(qiang)(qiang)(qiang)內。  3.更換真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)(beng)(beng)油(you)首先打(da)開真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)(beng)(beng)約0.5h,使油(you)更薄,然后(hou)停止真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)(beng)(beng),從排油(you)孔排出(chu)油(you),然后(hou)打(da)開吸(xi)油(you)口1~2min。在(zai)此(ci)期間,可以從吸(xi)入口緩慢添(tian)加少量清潔油(you),以替換泵(beng)(beng)(beng)腔(qiang)(qiang)(qiang)內油(you)。
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