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發布(bu)時(shi)間:
2018
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04
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12
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發布(bu)時間(jian):
2018
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04
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12
最新(xin)資訊
了解公司的最新活(huo)動及打折促銷
2020
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02
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23
自工(gong)(gong)(gong)業革命開始(shi)以(yi)來，真(zhen)(zhen)空(kong)(kong)(kong)技術(shu)(shu)一(yi)(yi)(yi)直處于(yu)(yu)現(xian)代(dai)(dai)制(zhi)(zhi)造(zao)技術(shu)(shu)的(de)(de)(de)前(qian)(qian)沿。從1800年的(de)(de)(de)第(di)一(yi)(yi)(yi)臺手動真(zhen)(zhen)空(kong)(kong)(kong)泵到1953年的(de)(de)(de)第(di)一(yi)(yi)(yi)臺工(gong)(gong)(gong)業真(zhen)(zhen)空(kong)(kong)(kong)吸(xi)塵(chen)(chen)器，真(zhen)(zhen)空(kong)(kong)(kong)技術(shu)(shu)被(bei)(bei)廣泛(fan)用(yong)于(yu)(yu)處理粉(fen)末和(he)散(san)裝固(gu)體的(de)(de)(de)運(yun)(yun)輸(shu)(shu)(shu)(shu)，有效地解決了大規模生(sheng)(sheng)產的(de)(de)(de)問題。 什么是(shi)真(zhen)(zhen)空(kong)(kong)(kong)運(yun)(yun)輸(shu)(shu)(shu)(shu)? 真(zhen)(zhen)空(kong)(kong)(kong)輸(shu)(shu)(shu)(shu)粉(fen)系(xi)統(tong)是(shi)通過(guo)真(zhen)(zhen)空(kong)(kong)(kong)抽(chou)吸(xi)實現(xian)輸(shu)(shu)(shu)(shu)粉(fen)目的(de)(de)(de)，集(ji)過(guo)濾、反(fan)吹(chui)、出料(liao)、閥(fa)體控制(zhi)(zhi)等(deng)(deng)(deng)綜合因素(su)于(yu)(yu)一(yi)(yi)(yi)體的(de)(de)(de)系(xi)統(tong)。它主(zhu)要應用(yong)于(yu)(yu)粉(fen)狀物(wu)(wu)料(liao)、顆(ke)粒(li)狀物(wu)(wu)料(liao)、粉(fen)狀混合物(wu)(wu)等(deng)(deng)(deng)物(wu)(wu)料(liao)的(de)(de)(de)運(yun)(yun)輸(shu)(shu)(shu)(shu)，在制(zhi)(zhi)藥、化(hua)工(gong)(gong)(gong)、食品(pin)加(jia)工(gong)(gong)(gong)、添加(jia)劑制(zhi)(zhi)造(zao)、航空(kong)(kong)(kong)航天等(deng)(deng)(deng)行(xing)業十分流行(xing)。 真(zhen)(zhen)空(kong)(kong)(kong)發生(sheng)(sheng)器的(de)(de)(de)原理 真(zhen)(zhen)空(kong)(kong)(kong)運(yun)(yun)輸(shu)(shu)(shu)(shu)最早起源于(yu)(yu)歐洲(zhou)。由于(yu)(yu)初期(qi)技術(shu)(shu)水(shui)平(ping)低，運(yun)(yun)輸(shu)(shu)(shu)(shu)效率(lv)相(xiang)對較低。然而，經過(guo)多年的(de)(de)(de)實踐和(he)組裝零件的(de)(de)(de)更新(xin)，真(zhen)(zhen)空(kong)(kong)(kong)運(yun)(yun)輸(shu)(shu)(shu)(shu)現(xian)在已經發展(zhan)到一(yi)(yi)(yi)個相(xiang)當完美的(de)(de)(de)水(shui)平(ping)。以(yi)下(xia)是(shi)真(zhen)(zhen)空(kong)(kong)(kong)運(yun)(yun)輸(shu)(shu)(shu)(shu)在中國經歷的(de)(de)(de)三代(dai)(dai)變化(hua): 第(di)一(yi)(yi)(yi)代(dai)(dai):真(zhen)(zhen)空(kong)(kong)(kong)輸(shu)(shu)(shu)(shu)送技術(shu)(shu)最早應用(yong)于(yu)(yu)制(zhi)(zhi)藥生(sheng)(sheng)產領域，采(cai)用(yong)普通工(gong)(gong)(gong)業粉(fen)塵(chen)(chen)吸(xi)收作(zuo)(zuo)為(wei)真(zhen)(zhen)空(kong)(kong)(kong)源，目前(qian)(qian)已被(bei)(bei)淘汰。 第(di)二代(dai)(dai):工(gong)(gong)(gong)業吹(chui)吸(xi)泵取(qu)代(dai)(dai)工(gong)(gong)(gong)業吸(xi)塵(chen)(chen)機，采(cai)用(yong)有機纖(xian)維(wei)過(guo)濾技術(shu)(shu)。 第(di)三代(dai)(dai):采(cai)用(yong)真(zhen)(zhen)空(kong)(kong)(kong)泵和(he)真(zhen)(zhen)空(kong)(kong)(kong)發生(sheng)(sheng)器作(zuo)(zuo)為(wei)真(zhen)(zhen)空(kong)(kong)(kong)源，同時對過(guo)濾系(xi)統(tong)進行(xing)了改進，大大提高了系(xi)統(tong)的(de)(de)(de)穩定性。 與(yu)常(chang)用(yong)的(de)(de)(de)正壓輸(shu)(shu)(shu)(shu)送、提桶、輸(shu)(shu)(shu)(shu)送帶等(deng)(deng)(deng)輸(shu)(shu)(shu)(shu)送方(fang)式(shi)相(xiang)比，真(zhen)(zhen)空(kong)(kong)(kong)輸(shu)(shu)(shu)(shu)送通過(guo)定制(zhi)(zhi)化(hua)和(he)現(xian)成化(hua)的(de)(de)(de)工(gong)(gong)(gong)程系(xi)統(tong)，可以(yi)解決生(sheng)(sheng)產中的(de)(de)(de)諸多安全隱患，提高工(gong)(gong)(gong)作(zuo)(zuo)效率(lv)，有效減少物(wu)(wu)料(liao)損失(shi)。此外，最重要的(de)(de)(de)是(shi)，它還可以(yi)與(yu)混合機、造(zao)粒(li)機、壓片機、包衣機、膠囊充填機、包裝機等(deng)(deng)(deng)其他粉(fen)末輸(shu)(shu)(shu)(shu)送技術(shu)(shu)無法比擬(ni)的(de)(de)(de)主(zhu)要工(gong)(gong)(gong)藝設備結合使(shi)用(yong)。 你(ni)為(wei)什么選擇(ze)真(zhen)(zhen)空(kong)(kong)(kong)運(yun)(yun)輸(shu)(shu)(shu)(shu)? 眾所(suo)周知(zhi)，...
2020
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02
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27
如果(guo)普通(tong)(tong)(tong)旋(xuan)(xuan)(xuan)片(pian)(pian)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)的(de)轉子反轉，真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)的(de)油(you)和(he)(he)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)將(jiang)(jiang)返回真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)室(shi)(shi)(shi)，造(zao)成(cheng)污(wu)染并破壞現有(you)的(de)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)度(du)。因(yin)此(ci)(ci)(ci)，在實際應用(yong)中有(you)必要防止(zhi)(zhi)旋(xuan)(xuan)(xuan)片(pian)(pian)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)反轉。一(yi)般如何(he)防止(zhi)(zhi)旋(xuan)(xuan)(xuan)片(pian)(pian)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)反轉?與螺桿真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)制(zhi)造(zao)商一(yi)起了解它(ta)。 如果(guo)旋(xuan)(xuan)(xuan)片(pian)(pian)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)反轉，它(ta)通(tong)(tong)(tong)常(chang)出現在泵(beng)(beng)(beng)(beng)(beng)(beng)的(de)啟動(dong)和(he)(he)停止(zhi)(zhi)階段。 旋(xuan)(xuan)(xuan)片(pian)(pian)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)通(tong)(tong)(tong)常(chang)由三相(xiang)交流電(dian)(dian)機驅動(dong)，因(yin)此(ci)(ci)(ci)首先要注意電(dian)(dian)源(yuan)線(xian)的(de)連(lian)接，以(yi)(yi)保(bao)(bao)證正確(que)的(de)旋(xuan)(xuan)(xuan)轉方向(xiang)。目前，一(yi)些泵(beng)(beng)(beng)(beng)(beng)(beng)還配備了反向(xiang)制(zhi)動(dong)，以(yi)(yi)防止(zhi)(zhi)泵(beng)(beng)(beng)(beng)(beng)(beng)反向(xiang)旋(xuan)(xuan)(xuan)轉。一(yi)旦電(dian)(dian)源(yuan)線(xian)連(lian)接不正確(que)，真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)就無法(fa)啟動(dong)。 當泵(beng)(beng)(beng)(beng)(beng)(beng)停止(zhi)(zhi)時(shi)，出口(kou)處的(de)大氣(qi)(qi)(qi)壓力(li)將(jiang)(jiang)使真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)反轉。因(yin)此(ci)(ci)(ci)，有(you)必要通(tong)(tong)(tong)過(guo)一(yi)個特(te)殊的(de)閥(fa)(fa)門(men)將(jiang)(jiang)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)與真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)室(shi)(shi)(shi)分(fen)開(kai)，以(yi)(yi)防止(zhi)(zhi)反向(xiang)旋(xuan)(xuan)(xuan)轉導致(zhi)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)和(he)(he)泵(beng)(beng)(beng)(beng)(beng)(beng)油(you)進(jin)入流入真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)室(shi)(shi)(shi)。這種特(te)殊的(de)閥(fa)(fa)門(men)通(tong)(tong)(tong)常(chang)是一(yi)種電(dian)(dian)磁(ci)放(fang)氣(qi)(qi)(qi)閥(fa)(fa)，它(ta)通(tong)(tong)(tong)常(chang)與電(dian)(dian)機的(de)電(dian)(dian)源(yuan)相(xiang)連(lian)，并安裝(zhuang)在真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)的(de)入口(kou)管中。當真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)斷電(dian)(dian)或(huo)控制(zhi)開(kai)關關閉(bi)時(shi)，電(dian)(dian)磁(ci)閥(fa)(fa)將(jiang)(jiang)打(da)開(kai)，通(tong)(tong)(tong)過(guo)大氣(qi)(qi)(qi)和(he)(he)泵(beng)(beng)(beng)(beng)(beng)(beng)入口(kou)之間(jian)的(de)壓差關閉(bi)泵(beng)(beng)(beng)(beng)(beng)(beng)和(he)(he)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)室(shi)(shi)(shi)之間(jian)的(de)通(tong)(tong)(tong)道，并將(jiang)(jiang)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)排(pai)放(fang)到真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)入口(kou)。真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)啟動(dong)時(shi)，電(dian)(dian)磁(ci)閥(fa)(fa)關閉(bi)，真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)排(pai)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)保(bao)(bao)護閥(fa)(fa)，閥(fa)(fa)板(ban)被彈(dan)簧壓力(li)打(da)開(kai)。 此(ci)(ci)(ci)外，一(yi)些旋(xuan)(xuan)(xuan)片(pian)(pian)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)還將(jiang)(jiang)在泵(beng)(beng)(beng)(beng)(beng)(beng)的(de)進(jin)口(kou)處安裝(zhuang)一(yi)個空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)隔離閥(fa)(fa)來代(dai)替(ti)電(dian)(dian)磁(ci)放(fang)氣(qi)(qi)(qi)閥(fa)(fa)，以(yi)(yi)實現上述保(bao)(bao)護閥(fa)(fa)的(de)功能。
2020
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03
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03
大(da)多數(shu)深圳水(shui)(shui)(shui)(shui)環(huan)(huan)(huan)真(zhen)(zhen)空泵(beng)(beng)(beng)的(de)(de)(de)(de)(de)(de)(de)泵(beng)(beng)(beng)軸(zhou)(zhou)(zhou)彎(wan)(wan)曲(qu)主要(yao)是(shi)由(you)于套筒剛性不(bu)足(zu)和(he)(he)葉輪不(bu)平衡造成的(de)(de)(de)(de)(de)(de)(de)，導致運行時(shi)變形。軸(zhou)(zhou)(zhou)的(de)(de)(de)(de)(de)(de)(de)彎(wan)(wan)曲(qu)方向(xiang)(xiang)(xiang)(xiang)和(he)(he)尺(chi)寸可(ke)(ke)以(yi)通(tong)過以(yi)下方法(fa)測量(liang):將軸(zhou)(zhou)(zhou)平放在支(zhi)架上(shang)，將兩個(ge)支(zhi)撐(cheng)點(可(ke)(ke)以(yi)是(shi)泵(beng)(beng)(beng)軸(zhou)(zhou)(zhou)的(de)(de)(de)(de)(de)(de)(de)中(zhong)心孔(kong)或(huo)軸(zhou)(zhou)(zhou)的(de)(de)(de)(de)(de)(de)(de)頸(jing)部(bu)位置(zhi))調整到相同(tong)的(de)(de)(de)(de)(de)(de)(de)高度(du)，在軸(zhou)(zhou)(zhou)上(shang)選擇(ze)幾(ji)個(ge)等距部(bu)分(fen)，在軸(zhou)(zhou)(zhou)的(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)次旋轉(zhuan)(zhuan)中(zhong)用千(qian)分(fen)表測量(liang)四(si)個(ge)方向(xiang)(xiang)(xiang)(xiang)的(de)(de)(de)(de)(de)(de)(de)徑向(xiang)(xiang)(xiang)(xiang)跳動(dong)(即每(mei)90度(du)旋轉(zhuan)(zhuan)一(yi)(yi)次)，并做好記錄。根據這些(xie)數(shu)據，可(ke)(ke)以(yi)得到四(si)個(ge)方向(xiang)(xiang)(xiang)(xiang)的(de)(de)(de)(de)(de)(de)(de)彎(wan)(wan)曲(qu)值，用圖解(jie)法(fa)可(ke)(ke)以(yi)求出最(zui)大(da)彎(wan)(wan)曲(qu)的(de)(de)(de)(de)(de)(de)(de)方向(xiang)(xiang)(xiang)(xiang)和(he)(he)大(da)小(xiao)，從(cong)而可(ke)(ke)以(yi)進行矯直(zhi)。水(shui)(shui)(shui)(shui)環(huan)(huan)(huan)真(zhen)(zhen)空泵(beng)(beng)(beng)泵(beng)(beng)(beng)軸(zhou)(zhou)(zhou)的(de)(de)(de)(de)(de)(de)(de)裂(lie)紋(wen)(wen)和(he)(he)斷裂(lie)部(bu)位往往發生(sheng)在局部(bu)應(ying)力(li)(li)(li)集中(zhong)的(de)(de)(de)(de)(de)(de)(de)地方，如鍵槽(cao)邊緣和(he)(he)直(zhi)徑突變處。損(sun)(sun)壞的(de)(de)(de)(de)(de)(de)(de)原(yuan)因(yin)通(tong)常是(shi)振(zhen)動(dong)引起(qi)的(de)(de)(de)(de)(de)(de)(de)疲(pi)勞(lao)(lao)損(sun)(sun)壞。 水(shui)(shui)(shui)(shui)環(huan)(huan)(huan)真(zhen)(zhen)空泵(beng)(beng)(beng)的(de)(de)(de)(de)(de)(de)(de)泵(beng)(beng)(beng)軸(zhou)(zhou)(zhou)如有疲(pi)勞(lao)(lao)裂(lie)紋(wen)(wen)(即將斷裂(lie)的(de)(de)(de)(de)(de)(de)(de)前(qian)兆(zhao))，應(ying)及時(shi)更換。如果由(you)于客(ke)觀因(yin)素需(xu)要(yao)繼續使用，暫時(shi)無法(fa)更換，臨時(shi)補(bu)救辦法(fa)是(shi)修復焊縫裂(lie)紋(wen)(wen)。補(bu)焊后(hou)使用泵(beng)(beng)(beng)軸(zhou)(zhou)(zhou)時(shi)，應(ying)注意補(bu)焊區域的(de)(de)(de)(de)(de)(de)(de)變化(hua)(hua)，以(yi)免發生(sheng)事故。疲(pi)勞(lao)(lao)損(sun)(sun)壞的(de)(de)(de)(de)(de)(de)(de)主要(yao)原(yuan)因(yin)是(shi)泵(beng)(beng)(beng)軸(zhou)(zhou)(zhou)運行期間泵(beng)(beng)(beng)腔(qiang)內的(de)(de)(de)(de)(de)(de)(de)氣體(ti)(ti)對泵(beng)(beng)(beng)軸(zhou)(zhou)(zhou)施加的(de)(de)(de)(de)(de)(de)(de)力(li)(li)(li)，也(ye)稱為(wei)徑向(xiang)(xiang)(xiang)(xiang)力(li)(li)(li)。除了水(shui)(shui)(shui)(shui)環(huan)(huan)(huan)真(zhen)(zhen)空泵(beng)(beng)(beng)徑向(xiang)(xiang)(xiang)(xiang)受力(li)(li)(li)的(de)(de)(de)(de)(de)(de)(de)根本原(yuan)因(yin)外，不(bu)合(he)(he)理的(de)(de)(de)(de)(de)(de)(de)結構也(ye)是(shi)泵(beng)(beng)(beng)軸(zhou)(zhou)(zhou)疲(pi)勞(lao)(lao)損(sun)(sun)壞不(bu)可(ke)(ke)忽視的(de)(de)(de)(de)(de)(de)(de)重要(yao)原(yuan)因(yin)。 目前(qian)水(shui)(shui)(shui)(shui)環(huan)(huan)(huan)真(zhen)(zhen)空泵(beng)(beng)(beng)的(de)(de)(de)(de)(de)(de)(de)軸(zhou)(zhou)(zhou)與葉輪為(wei)一(yi)(yi)級動(dong)配(pei)合(he)(he)，鍵槽(cao)沒有用0型密(mi)(mi)封圈密(mi)(mi)封。泵(beng)(beng)(beng)中(zhong)的(de)(de)(de)(de)(de)(de)(de)液(ye)體(ti)(ti)(尤其是(shi)當腐(fu)蝕性液(ye)體(ti)(ti)在化(hua)(hua)學工業(ye)中(zhong)用作(zuo)液(ye)體(ti)(ti)環(huan)(huan)(huan)時(shi))會通(tong)過配(pei)合(he)(he)間隙和(he)(he)鍵槽(cao)進入的(de)(de)(de)(de)(de)(de)(de)軸(zhou)(zhou)(zhou)孔(kong)腐(fu)蝕軸(zhou)(zhou)(zhou)和(he)(he)葉輪的(de)(de)(de)(de)(de)(de)(de)軸(zhou)(zhou)(zhou)孔(kong)，從(cong)而大(da)大(da)降低疲(pi)勞(lao)(lao)強度(du)。在腐(fu)蝕和(he)(he)磨(mo)損(sun)(sun)之后(hou)，配(pei)合(he)(he)間隙增加(一(yi)(yi)些(xie)被研磨(mo)成橢圓形軸(zhou)(zhou)(zhou)孔(kong))，這不(bu)僅影響性能，而且加劇振(zhen)動(dong)和(he)(he)促進疲(pi)勞(lao)(lao)斷裂(lie)。一(yi)(yi)般水(shui)(shui)(shui)(shui)環(huan)(huan)(huan)真(zhen)(zhen)空泵(beng)(beng)(beng)的(de)(de)(de)(de)(de)(de)(de)泵(beng)(beng)(beng)軸(zhou)(zhou)(zhou)...
2020
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1.真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong):在(zai)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)科(ke)學中，真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)指(zhi)的(de)(de)(de)(de)是給(gei)定空(kong)(kong)(kong)(kong)(kong)(kong)(kong)間內低于大(da)(da)氣(qi)(qi)(qi)(qi)壓(ya)(ya)(ya)(ya)(ya)的(de)(de)(de)(de)氣(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)狀(zhuang)態(tai)。人們通常(chang)(chang)稱(cheng)這種稀薄氣(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)狀(zhuang)態(tai)為(wei)(wei)(wei)(wei)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)狀(zhuang)態(tai)。 2.真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)度(du)(du)(du)(du)(du):顧(gu)名思(si)義，真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)度(du)(du)(du)(du)(du)就是真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)度(du)(du)(du)(du)(du)。真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)下(xia)(xia)氣(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)的(de)(de)(de)(de)厚(hou)度(du)(du)(du)(du)(du)通常(chang)(chang)表(biao)示(shi)為(wei)(wei)(wei)(wei)“高真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)”和(he)(he)“低真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)”。高真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)意味著(zhu)“好”，低真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)意味著(zhu)“差”。所謂的(de)(de)(de)(de)“真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)”是指(zhi)在(zai)給(gei)定空(kong)(kong)(kong)(kong)(kong)(kong)(kong)間內壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)低于101325百帕(pa)(即(ji)大(da)(da)約1013百帕(pa)的(de)(de)(de)(de)標準(zhun)大(da)(da)氣(qi)(qi)(qi)(qi)壓(ya)(ya)(ya)(ya)(ya))的(de)(de)(de)(de)氣(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)狀(zhuang)態(tai)。在(zai)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)狀(zhuang)態(tai)下(xia)(xia)，氣(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)的(de)(de)(de)(de)稀薄程度(du)(du)(du)(du)(du)通常(chang)(chang)用氣(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)的(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)值(zhi)(zhi)來表(biao)示(shi)。顯(xian)然(ran)，壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)值(zhi)(zhi)越小(xiao)(xiao)，氣(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)越稀薄。 3.真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵極(ji)(ji)限壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li):真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵能達(da)到的(de)(de)(de)(de)最低壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)。 4.極(ji)(ji)度(du)(du)(du)(du)(du)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong):真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)容器(qi)(qi)(qi)在(zai)充(chong)分(fen)(fen)抽(chou)(chou)氣(qi)(qi)(qi)(qi)后(hou)穩定在(zai)一(yi)(yi)定的(de)(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)度(du)(du)(du)(du)(du)。這種真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)度(du)(du)(du)(du)(du)被稱(cheng)為(wei)(wei)(wei)(wei)極(ji)(ji)度(du)(du)(du)(du)(du)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)。通常(chang)(chang)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)容器(qi)(qi)(qi)需要12小(xiao)(xiao)時(shi)的(de)(de)(de)(de)氣(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)精煉，然(ran)后(hou)抽(chou)(chou)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)12小(xiao)(xiao)時(shi)，最后(hou)一(yi)(yi)小(xiao)(xiao)時(shi)每(mei)10分(fen)(fen)鐘測量一(yi)(yi)次(ci)，取10次(ci)的(de)(de)(de)(de)平均值(zhi)(zhi)作為(wei)(wei)(wei)(wei)極(ji)(ji)限真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)值(zhi)(zhi)。 5.大(da)(da)氣(qi)(qi)(qi)(qi)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li):地球表(biao)面周(zhou)圍厚(hou)厚(hou)的(de)(de)(de)(de)一(yi)(yi)層(ceng)大(da)(da)氣(qi)(qi)(qi)(qi)對地球表(biao)面或(huo)(huo)表(biao)面物體(ti)(ti)(ti)(ti)施加的(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)稱(cheng)為(wei)(wei)(wei)(wei)大(da)(da)氣(qi)(qi)(qi)(qi)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)。 6.標準(zhun)大(da)(da)氣(qi)(qi)(qi)(qi)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li):指(zhi)標準(zhun)大(da)(da)氣(qi)(qi)(qi)(qi)條件下(xia)(xia)海平面的(de)(de)(de)(de)大(da)(da)氣(qi)(qi)(qi)(qi)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)。1標準(zhun)大(da)(da)氣(qi)(qi)(qi)(qi)壓(ya)(ya)(ya)(ya)(ya)=760毫(hao)微克(ke)=101325帕(pa) 7.絕對壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)和(he)(he)相對壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li):直(zhi)接作用在(zai)容器(qi)(qi)(qi)或(huo)(huo)物體(ti)(ti)(ti)(ti)表(biao)面的(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)稱(cheng)為(wei)(wei)(wei)(wei)絕對壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)，絕對壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)值(zhi)(zhi)以絕對真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)為(wei)(wei)(wei)(wei)起點。用壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)計、真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)計、U形管和(he)(he)其他儀(yi)器(qi)(qi)(qi)測量的(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)稱(cheng)為(wei)(wei)(wei)(wei)表(biao)壓(ya)(ya)(ya)(ya)(ya)或(huo)(huo)相對壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)。 8.標準(zhun)條件:通常(chang)(chang)指(zhi)溫(wen)度(du)(du)(du)(du)(du)為(wei)(wei)(wei)(wei)0℃，壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)為(wei)(wei)(wei)(wei)101325帕(pa)(1標準(zhun)大(da)(da)氣(qi)(qi)(qi)(qi)壓(ya)(ya)(ya)(ya)(ya)，760毫(hao)米(mi)汞柱)的(de)(de)(de)(de)條件。以便在(zai)比較氣(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)體(ti)(ti)(ti)(ti)積時(shi)有一(yi)(yi)個統一(yi)(yi)的(de)(de)(de)(de)標準(zhun)。除非(fei)另有說明，氣(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)的(de)(de)(de)(de)密度(du)(du)(du)(du)(du)是指(zhi)在(zai)標準(zhun)條件下(xia)(xia)所說...
2020
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03
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10
近半個(ge)(ge)世紀的(de)(de)(de)(de)(de)歷(li)史表(biao)明，電(dian)子(zi)(zi)設(she)備(bei)的(de)(de)(de)(de)(de)發(fa)(fa)展(zhan)對(dui)人(ren)類(lei)社會起到了(le)巨大的(de)(de)(de)(de)(de)推動(dong)(dong)作用(yong)(yong)。每一(yi)(yi)(yi)種(zhong)新(xin)電(dian)子(zi)(zi)設(she)備(bei)的(de)(de)(de)(de)(de)出(chu)現(xian)都對(dui)促進科學技(ji)(ji)術(shu)和生(sheng)(sheng)產的(de)(de)(de)(de)(de)發(fa)(fa)展(zhan)起到了(le)積(ji)極(ji)的(de)(de)(de)(de)(de)作用(yong)(yong)。電(dian)子(zi)(zi)管的(de)(de)(de)(de)(de)誕生(sheng)(sheng)是(shi)(shi)真(zhen)空(kong)(kong)科學技(ji)(ji)術(shu)全(quan)面發(fa)(fa)展(zhan)的(de)(de)(de)(de)(de)結果。微電(dian)子(zi)(zi)器(qi)(qi)件(jian)(jian)(jian)的(de)(de)(de)(de)(de)發(fa)(fa)展(zhan)是(shi)(shi)基于超(chao)純材料和高精度(du)微加工(gong)技(ji)(ji)術(shu)的(de)(de)(de)(de)(de)改進，其中(zhong)(zhong)許多(duo)都與真(zhen)空(kong)(kong)技(ji)(ji)術(shu)有關。微電(dian)子(zi)(zi)設(she)備(bei)是(shi)(shi)現(xian)代高速(su)計算(suan)機(ji)(ji)和個(ge)(ge)人(ren)計算(suan)機(ji)(ji)的(de)(de)(de)(de)(de)基礎。在當(dang)今(jin)(jin)一(yi)(yi)(yi)些發(fa)(fa)達(da)國家(jia)(jia)，微電(dian)子(zi)(zi)和計算(suan)機(ji)(ji)產業已經超(chao)過能源、材料、交通和鋼(gang)鐵(tie)產業，在國民經濟產值中(zhong)(zhong)占據首位(wei)。在電(dian)子(zi)(zi)工(gong)業和計算(suan)機(ji)(ji)工(gong)業的(de)(de)(de)(de)(de)發(fa)(fa)展(zhan)中(zhong)(zhong)，真(zhen)空(kong)(kong)科學技(ji)(ji)術(shu)做(zuo)出(chu)了(le)重要貢(gong)獻。 在未(wei)來(lai)，將有四個(ge)(ge)新(xin)的(de)(de)(de)(de)(de)電(dian)器(qi)(qi):一(yi)(yi)(yi)個(ge)(ge)多(duo)功能信(xin)息系統與多(duo)媒體彩(cai)電(dian)，電(dian)腦和聲音組合。具有真(zhen)空(kong)(kong)冷凍和真(zhen)空(kong)(kong)保存功能的(de)(de)(de)(de)(de)冰箱;具有真(zhen)空(kong)(kong)脫水功能的(de)(de)(de)(de)(de)洗衣機(ji)(ji)和監控室內(nei)空(kong)(kong)氣新(xin)鮮度(du)的(de)(de)(de)(de)(de)空(kong)(kong)調。這些家(jia)(jia)用(yong)(yong)電(dian)器(qi)(qi)有的(de)(de)(de)(de)(de)直(zhi)接使(shi)用(yong)(yong)真(zhen)空(kong)(kong)技(ji)(ji)術(shu)，有的(de)(de)(de)(de)(de)間接使(shi)用(yong)(yong)真(zhen)空(kong)(kong)技(ji)(ji)術(shu)獲得的(de)(de)(de)(de)(de)加工(gong)結果。因為無(wu)論是(shi)(shi)計算(suan)機(ji)(ji)還是(shi)(shi)各(ge)種(zhong)自動(dong)(dong)電(dian)器(qi)(qi)，它們的(de)(de)(de)(de)(de)基礎都是(shi)(shi)微電(dian)子(zi)(zi)設(she)備(bei)。其中(zhong)(zhong)最(zui)重要的(de)(de)(de)(de)(de)是(shi)(shi)規模(mo)集(ji)成(cheng)電(dian)路。如今(jin)(jin)，微電(dian)子(zi)(zi)器(qi)(qi)件(jian)(jian)(jian)幾(ji)乎(hu)成(cheng)了(le)家(jia)(jia)喻戶曉的(de)(de)(de)(de)(de)詞，因為它在當(dang)今(jin)(jin)人(ren)類(lei)社會的(de)(de)(de)(de)(de)生(sheng)(sheng)產和生(sheng)(sheng)活(huo)中(zhong)(zhong)的(de)(de)(de)(de)(de)作用(yong)(yong)無(wu)法(fa)與任何其他工(gong)業產品相(xiang)提并論。微電(dian)子(zi)(zi)器(qi)(qi)件(jian)(jian)(jian)的(de)(de)(de)(de)(de)發(fa)(fa)展(zhan)將推動(dong)(dong)人(ren)類(lei)社會更快的(de)(de)(de)(de)(de)進步。微電(dian)子(zi)(zi)器(qi)(qi)件(jian)(jian)(jian)的(de)(de)(de)(de)(de)發(fa)(fa)展(zhan)趨(qu)勢(shi)是(shi)(shi)大規模(mo)集(ji)成(cheng)電(dian)路，集(ji)成(cheng)度(du)越(yue)來(lai)越(yue)高，即(ji)芯片上(shang)功能元(yuan)件(jian)(jian)(jian)的(de)(de)(de)(de)(de)尺寸越(yue)來(lai)越(yue)小。摩爾(er)定(ding)律(lv)描(miao)述(shu)了(le)這個(ge)(ge)定(ding)律(lv)，同樣大小的(de)(de)(de)(de)(de)芯片上(shang)的(de)(de)(de)(de)(de)元(yuan)件(jian)(jian)(jian)數量每18個(ge)(ge)月翻一(yi)(yi)(yi)番。過去20年一(yi)(yi)(yi)直(zhi)如此(ci)，電(dian)子(zi)(zi)專家(jia)(jia)預測未(wei)來(lai)15年仍將如此(ci)。 1.莫爾(er)定(ding)律(lv)討論硅片上(shang)的(de)(de)(de)(de)(de)元(yuan)件(jian)(jian)(jian)密度(du)，這是(shi)(shi)描(miao)述(shu)大規模(mo)集(ji)...
2020
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03
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在我們知道(dao)多(duo)(duo)(duo)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)和單(dan)(dan)(dan)(dan)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)區別(bie)之(zhi)前，我們必須先了解什(shen)(shen)么是(shi)(shi)(shi)多(duo)(duo)(duo)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)，什(shen)(shen)么是(shi)(shi)(shi)單(dan)(dan)(dan)(dan)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)。多(duo)(duo)(duo)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)是(shi)(shi)(shi)兩個(ge)(ge)以(yi)上(shang)功能相同的(de)(de)(de)(de)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)組(zu)合。流體通(tong)道(dao)結構示(shi)出(chu)為該(gai)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)中壓(ya)(ya)泄放口(kou)(kou)與第(di)二級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)入口(kou)(kou)連(lian)通(tong)，并且(qie)第(di)二級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)中壓(ya)(ya)泄放口(kou)(kou)與第(di)三級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)入口(kou)(kou)連(lian)通(tong)。這種串聯機構形成(cheng)多(duo)(duo)(duo)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)。一般(ban)來說，多(duo)(duo)(duo)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)是(shi)(shi)(shi)指兩個(ge)(ge)以(yi)上(shang)的(de)(de)(de)(de)葉(xie)(xie)(xie)(xie)(xie)輪(lun)(lun)串聯，而單(dan)(dan)(dan)(dan)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)只有一個(ge)(ge)葉(xie)(xie)(xie)(xie)(xie)輪(lun)(lun)，通(tong)過(guo)一個(ge)(ge)延伸的(de)(de)(de)(de)彈(dan)性聯軸器(qi)與電機相連(lian)。從驅動端(duan)看(kan)，泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)旋轉方向是(shi)(shi)(shi)順時針方向。 首先，單(dan)(dan)(dan)(dan)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)絕對是(shi)(shi)(shi)多(duo)(duo)(duo)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)基(ji)礎。兩者(zhe)都是(shi)(shi)(shi)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)。相同尺寸的(de)(de)(de)(de)葉(xie)(xie)(xie)(xie)(xie)輪(lun)(lun)串聯安裝在同一個(ge)(ge)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)中，形成(cheng)多(duo)(duo)(duo)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)。 1.所以(yi)兩者(zhe)的(de)(de)(de)(de)明顯區別(bie)在于葉(xie)(xie)(xie)(xie)(xie)輪(lun)(lun)不同，單(dan)(dan)(dan)(dan)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)只有一個(ge)(ge)葉(xie)(xie)(xie)(xie)(xie)輪(lun)(lun)，多(duo)(duo)(duo)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)葉(xie)(xie)(xie)(xie)(xie)輪(lun)(lun)數(shu)在2個(ge)(ge)以(yi)上(shang)，單(dan)(dan)(dan)(dan)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)是(shi)(shi)(shi)指只有一個(ge)(ge)葉(xie)(xie)(xie)(xie)(xie)輪(lun)(lun)的(de)(de)(de)(de)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)，揚(yang)程(cheng)只有125米(mi); 2.多(duo)(duo)(duo)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)是(shi)(shi)(shi)指具有兩個(ge)(ge)或兩個(ge)(ge)以(yi)上(shang)葉(xie)(xie)(xie)(xie)(xie)輪(lun)(lun)的(de)(de)(de)(de)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)，其揚(yang)程(cheng)可超過(guo)125米(mi);當單(dan)(dan)(dan)(dan)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)揚(yang)程(cheng)需要(yao)配備兩級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)電機時，通(tong)過(guo)增加葉(xie)(xie)(xie)(xie)(xie)輪(lun)(lun)數(shu)量，多(duo)(duo)(duo)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)可以(yi)配備四級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)電機，從而提高泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)使用(yong)壽命，降(jiang)低(di)機組(zu)噪聲。然而，多(duo)(duo)(duo)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)維護比(bi)單(dan)(dan)(dan)(dan)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)更困難。 3.壓(ya)(ya)力(li)(li)是(shi)(shi)(shi)通(tong)過(guo)疊加每一級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)葉(xie)(xie)(xie)(xie)(xie)輪(lun)(lun)形成(cheng)的(de)(de)(de)(de)。單(dan)(dan)(dan)(dan)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)和多(duo)(duo)(duo)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)葉(xie)(xie)(xie)(xie)(xie)輪(lun)(lun)之(zhi)間的(de)(de)(de)(de)差異導致兩者(zhe)之(zhi)間的(de)(de)(de)(de)壓(ya)(ya)力(li)(li)差。單(dan)(dan)(dan)(dan)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)壓(ya)(ya)力(li)(li)低(di)流量，多(duo)(duo)(duo)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)壓(ya)(ya)力(li)(li)高流量，壓(ya)(ya)力(li)(li)小。 4.多(duo)(duo)(duo)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)揚(yang)程(cheng)高，軸向力(li)(li)比(bi)單(dan)(dan)(dan)(dan)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)大(da)，單(dan)(dan)(dan)(dan)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)揚(yang)程(cheng)比(bi)多(duo)(duo)(duo)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)低(di)，但(dan)(651，351)大(da)壓(ya)(ya)力(li)(li)較低(di)。 5.當泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)實(shi)際揚(yang)程(cheng)小于125米(mi)時，單(dan)(dan)(dan)(dan)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)或多(duo)(duo)(duo)級(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)(ji)離(li)(li)(li)(li)(li)心(xin)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)可根據...
2020
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03
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1、慢(man)(man)慢(man)(man)關(guan)小(xiao)(xiao)排(pai)(pai)出(chu)(chu)閥(fa)(fa)(fa)門(men)，直(zhi)到流(liu)(liu)量達(da)到最(zui)小(xiao)(xiao)值流(liu)(liu)量。 2、切斷(duan)電(dian)(dian)源，停(ting)(ting)(ting)泵(beng)(beng)(beng)(beng)(beng)，關(guan)閉(bi)出(chu)(chu)口(kou)閥(fa)(fa)(fa)。 3、當(dang)(dang)(dang)存(cun)在最(zui)小(xiao)(xiao)流(liu)(liu)量旁路通(tong)管路時(shi)(shi)，關(guan)閉(bi)排(pai)(pai)放(fang)閥(fa)(fa)(fa)，旁路閥(fa)(fa)(fa)完(wan)全(quan)(quan)(quan)(quan)打(da)開(kai)(kai)，然后切斷(duan)電(dian)(dian)源并(bing)停(ting)(ting)(ting)止泵(beng)(beng)(beng)(beng)(beng)。只有當(dang)(dang)(dang)溫度(du)(du)降到80℃以下時(shi)(shi)，高溫泵(beng)(beng)(beng)(beng)(beng)才能(neng)停(ting)(ting)(ting)止循環(huan)水。泵(beng)(beng)(beng)(beng)(beng)停(ting)(ting)(ting)止20分鐘后，應(ying)(ying)根據情況停(ting)(ting)(ting)止密(mi)封(feng)(feng)系統(tong)(沖洗(xi)液(ye)和(he)密(mi)封(feng)(feng)氣體)。 4、備(bei)(bei)用泵(beng)(beng)(beng)(beng)(beng):吸(xi)(xi)入(ru)(ru)(ru)閥(fa)(fa)(fa)完(wan)全(quan)(quan)(quan)(quan)打(da)開(kai)(kai)，排(pai)(pai)出(chu)(chu)閥(fa)(fa)(fa)完(wan)全(quan)(quan)(quan)(quan)關(guan)閉(bi)(當(dang)(dang)(dang)有最(zui)小(xiao)(xiao)流(liu)(liu)量旁通(tong)閥(fa)(fa)(fa)通(tong)管路時(shi)(shi)，旁通(tong)閥(fa)(fa)(fa)完(wan)全(quan)(quan)(quan)(quan)打(da)開(kai)(kai)，排(pai)(pai)出(chu)(chu)閥(fa)(fa)(fa)完(wan)全(quan)(quan)(quan)(quan)關(guan)閉(bi))，因此泵(beng)(beng)(beng)(beng)(beng)處于充滿液(ye)體的(de)(de)吸(xi)(xi)入(ru)(ru)(ru)壓(ya)(ya)力(li)(li)狀態。備(bei)(bei)用泵(beng)(beng)(beng)(beng)(beng)的(de)(de)冷(leng)卻水應(ying)(ying)繼續投入(ru)(ru)(ru)使用，潤(run)滑油(you)位不應(ying)(ying)低于規定(ding)(ding)的(de)(de)油(you)位。在冬(dong)季，應(ying)(ying)特別注意(yi)檢查(cha)，以保(bao)持熱(re)線(xian)和(he)冷(leng)卻水暢通(tong)，避免凍結。 5、備(bei)(bei)用泵(beng)(beng)(beng)(beng)(beng)應(ying)(ying)按(an)規定(ding)(ding)轉動。 6、對(dui)于需(xu)要檢修的(de)(de)泵(beng)(beng)(beng)(beng)(beng)(停(ting)(ting)(ting)機后)，停(ting)(ting)(ting)機(冷(leng)卻)后先(xian)關(guan)閉(bi)干(gan)氣密(mi)封(feng)(feng)系統(tong)的(de)(de)氮氣入(ru)(ru)(ru)口(kou)閥(fa)(fa)(fa)，釋放(fang)密(mi)封(feng)(feng)室內(nei)(nei)(nei)的(de)(de)壓(ya)(ya)力(li)(li)，然后將泵(beng)(beng)(beng)(beng)(beng)內(nei)(nei)(nei)的(de)(de)液(ye)體和(he)冷(leng)卻系統(tong)內(nei)(nei)(nei)的(de)(de)冷(leng)卻水全(quan)(quan)(quan)(quan)部排(pai)(pai)出(chu)(chu)，使泵(beng)(beng)(beng)(beng)(beng)內(nei)(nei)(nei)壓(ya)(ya)力(li)(li)降至零，吹掃泵(beng)(beng)(beng)(beng)(beng)內(nei)(nei)(nei)剩(sheng)余物料，關(guan)閉(bi)所有閥(fa)(fa)(fa)門(men)，并(bing)聯系變電(dian)(dian)站停(ting)(ting)(ting)電(dian)(dian)。現場處理(li)應(ying)(ying)符合健康(kang)安全(quan)(quan)(quan)(quan)環(huan)保(bao)要求。 離心泵(beng)(beng)(beng)(beng)(beng)的(de)(de)切換 切換泵(beng)(beng)(beng)(beng)(beng)時(shi)(shi)，應(ying)(ying)嚴(yan)格保(bao)證系統(tong)流(liu)(liu)量和(he)恒(heng)壓(ya)(ya)原則(ze)。嚴(yan)禁(jin)撤離或(huo)搶泵(beng)(beng)(beng)(beng)(beng)。 正常情況下的(de)(de)切換: 1、備(bei)(bei)用泵(beng)(beng)(beng)(beng)(beng)應(ying)(ying)準備(bei)(bei)好啟動所有工作。 2、打(da)開(kai)(kai)備(bei)(bei)用泵(beng)(beng)(beng)(beng)(beng)的(de)(de)吸(xi)(xi)入(ru)(ru)(ru)閥(fa)(fa)(fa)(向泵(beng)(beng)(beng)(beng)(beng)內(nei)(nei)(nei)注入(ru)(ru)(ru)液(ye)體和(he)廢氣)，按(an)照(zhao)正常程(cheng)序啟動備(bei)(bei)用泵(beng)(beng)(beng)(beng)(beng)。 3、檢查(cha)備(bei)(bei)用泵(beng)(beng)(beng)(beng)(beng)出(chu)(chu)口(kou)壓(ya)(ya)力(li)(li)、電(dian)(dian)流(liu)(liu)、振動、泄(xie)漏、溫度(du)(du)等。·如果一切正常，可以逐漸(jian)打(da)開(kai)(kai)排(pai)(pai)放(fang)閥(fa)(fa)(fa)的(de)(de)開(kai)(kai)度(du)(du)，同時(shi)(shi)逐漸(jian)減小(xiao)(xiao)原運行泵(beng)(beng)(beng)(beng)(beng)的(de)(de)排(pai)(pai)放(fang)閥(fa)(fa)(fa)開(kai)(kai)度(du)(du)，盡量保(bao)持系統(tong)流(liu)(liu)量，壓(ya)(ya)力(li)(li)保(bao)持不變。當(dang)(dang)(dang)...