很多人會問真空泵機組的選擇方法?真空機組的工作流程是什么?真空機組的使用說明及注意事項?現在我們就來了解一下.
真空泵機組的選(xuan)擇(ze)方法(fa)
真(zhen)(zhen)空(kong)(kong)泵(beng)(beng)機(ji)組主要(yao)是羅茨(ci)泵(beng)(beng),真(zhen)(zhen)空(kong)(kong)泵(beng)(beng)機(ji)組是羅茨(ci)泵(beng)(beng)。旋片泵(beng)(beng)與前級泵(beng)(beng)串(chuan)聯連接(jie)。其結構緊(jin)湊,操作簡便。適用于(yu)抽取空(kong)(kong)氣和(he)(he)(he)其他(ta)非冷凝性(xing)和(he)(he)(he)非腐蝕(shi)性(xing)氣體(ti),用于(yu)需(xu)要(yao)高(gao)抽速和(he)(he)(he)高(gao)真(zhen)(zhen)空(kong)(kong)的各種(zhong)真(zhen)(zhen)空(kong)(kong)系統中。如:真(zhen)(zhen)空(kong)(kong)熔煉,功率電容(rong)器(qi),變壓器(qi),真(zhen)(zhen)空(kong)(kong)浸漬處理,真(zhen)(zhen)空(kong)(kong)鍍(du)膜(mo)設備的預萃取。當一(yi)個泵(beng)(beng)不能(neng)滿(man)(man)足(zu)抽氣和(he)(he)(he)真(zhen)(zhen)空(kong)(kong)要(yao)求(qiu)時(shi),需(xu)要(yao)組合(he)多(duo)個泵(beng)(beng)以相互補充,以滿(man)(man)足(zu)工藝要(yao)求(qiu)。
需要(yao)預先(xian)抽真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong);一些真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)入口壓(ya)(ya)力低于(yu)大(da)氣(qi)壓(ya)(ya),并且真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)機組(zu)(zu)中的(de)(de)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)不(bu)能在大(da)氣(qi)壓(ya)(ya)下(xia)運(yun)行。需要(yao)前(qian)級泵(beng),因此需要(yao)組(zu)(zu)合(he)泵(beng)。組(zu)(zu)合(he)使用的(de)(de)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)稱(cheng)為(wei)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)機組(zu)(zu),可以(yi)使真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)系統(tong)獲(huo)得更好(hao)的(de)(de)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)度和排量。組(zu)(zu)合(he)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)應正確選擇。不(bu)同的(de)(de)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)對(dui)提取的(de)(de)氣(qi)體有不(bu)同的(de)(de)要(yao)求。例如(ru),通常羅(luo)茨-旋(xuan)轉葉片(pian)機組(zu)(zu)不(bu)適用于(yu)包(bao)含更多可冷凝氣(qi)體的(de)(de)系統(tong)。
真(zhen)空機組的工作流程是(shi)什么
真(zhen)(zhen)空(kong)(kong)(kong)機(ji)組所需的(de)羅(luo)(luo)茨(ci)(ci)(ci)真(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)不(bu)能直接排到(dao)大氣中。如果(guo)直接排氣氣氛將形成羅(luo)(luo)茨(ci)(ci)(ci)真(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)的(de)吸入(ru)口(kou)和(he)排氣口(kou)的(de)壓力差太大,從(cong)而使羅(luo)(luo)茨(ci)(ci)(ci)真(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)過載(zai),如單(dan)純增加0201真(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)的(de)電機(ji)功率(lv)將形成羅(luo)(luo)茨(ci)(ci)(ci)真(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)020
-1導致過熱真(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)轉(zhuan)子之(zhi)間(jian)(jian)的(de)小間(jian)(jian)隙由于熱收縮(suo)而迅速被卡住(zhu)。
羅(luo)(luo)茨(ci)(ci)(ci)真(zhen)(zhen)空(kong)(kong)(kong)機(ji)組必(bi)須(xu)確保(bao)羅(luo)(luo)茨(ci)(ci)(ci)真(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)轉(zhuan)子之(zhi)間(jian)(jian)的(de)間(jian)(jian)隙,以(yi)確保(bao)羅(luo)(luo)茨(ci)(ci)(ci)真(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)可以(yi)達到(dao)更高的(de)真(zhen)(zhen)空(kong)(kong)(kong)度。因(yin)此,羅(luo)(luo)茨(ci)(ci)(ci)真(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)必(bi)須(xu)配備前(qian)級泵(beng)(beng)。當前(qian)級泵(beng)(beng)將系統內(nei)部的(de)壓力拉(la)至一定范圍時(shi),將啟動(dong)羅(luo)(luo)茨(ci)(ci)(ci)真(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng),這可以(yi)防止羅(luo)(luo)茨(ci)(ci)(ci)真(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)過載(zai)。
前級(ji)泵(beng)(beng)(beng)可(ke)(ke)以(yi)使用水(shui)(shui)(液(ye))環(huan)式(shi)真(zhen)空(kong)(kong)泵(beng)(beng)(beng),旋片式(shi)真(zhen)空(kong)(kong)泵(beng)(beng)(beng),滑閥式(shi)真(zhen)空(kong)(kong)泵(beng)(beng)(beng),往(wang)復式(shi)真(zhen)空(kong)(kong)泵(beng)(beng)(beng)等,其可(ke)(ke)以(yi)直接排出(chu)真(zhen)空(kong)(kong)泵(beng)(beng)(beng)。
羅(luo)(luo)茨真(zhen)空(kong)(kong)機組在正(zheng)常(chang)情況下,使用水(shui)(shui)環(huan)泵(beng)(beng)(beng)作(zuo)為前級(ji)泵(beng)(beng)(beng)比(bi)其他真(zhen)空(kong)(kong)泵(beng)(beng)(beng)更具優勢,主要(yao)是因為它可(ke)(ke)以(yi)除(chu)去(qu)大量的可(ke)(ke)冷凝蒸(zheng)汽,尤其是羅(luo)(luo)茨5油封機械(xie)真(zhen)空(kong)(kong)泵(beng)(beng)(beng)可(ke)(ke)以(yi)被刪除(chu)。冷凝的蒸(zheng)汽不足,或者使用的溶(rong)劑會(hui)使泵(beng)(beng)(beng)油變質并影響性能,或者真(zhen)空(kong)(kong)系統不允許油污染的時間更加明顯。
真空機組的使用說明及注意事項
真空(kong)機(ji)組投(tou)入生產之前,必須仔細檢查每(mei)個(ge)零件(jian)(jian)(jian)中(zhong)的(de)緊(jin)固件(jian)(jian)(jian)是否松動。如(ru)果松動,則(ze)必須糾正并擰(ning)緊(jin)。在(zai)啟(qi)動汽車(che)之前,必須給水箱(xiang)注滿水,打(da)開泵的(de)入口閥,然后運行(xing)防腐蝕(shi)泵。禁止(zhi)泵脫水,空(kong)轉和(he)(he)倒(dao)轉,以防止(zhi)損壞機(ji)器(qi)密封件(jian)(jian)(jian),葉輪和(he)(he)泵體的(de)其他零件(jian)(jian)(jian)。在(zai)真空(kong)機(ji)組停(ting)(ting)止(zhi)之前,首先打(da)開排氣閥或等待(dai)真空(kong)度降至0.092MPa以下(xia),然后停(ting)(ting)止(zhi)。為了防止(zhi)真空(kong)度過高(gao),形(xing)成了反向抽吸損壞單向閥。
如果止(zhi)回閥出(chu)現故(gu)障,請打開止(zhi)回閥蓋以清(qing)除碎屑。當使用(yong)蒸汽-水(shui)系列噴射(she)真(zhen)空(kong)(kong)機組時,首先驅動,然(ran)后(hou)打開蒸汽閥。停止(zhi)時,首先關閉(bi)蒸汽閥,然(ran)后(hou)停止(zhi)以防止(zhi)溫度過(guo)高。噴水(shui)真(zhen)空(kong)(kong)泵。當真(zhen)空(kong)(kong)機組位(wei)于設備的(de)蒸汽管(guan)線中時,必須使管(guan)道保持水(shui)平,以防止(zhi)水(shui)在管(guan)道中積聚,否則會影響真(zhen)空(kong)(kong)效果。水(shui)箱(xiang)內的(de)循(xun)環水(shui)應(ying)經常更(geng)換(huan)或補充,盡量堅持較底的(de)水(shui)溫,因為水(shui)溫過(guo)高會影響排(pai)氣量和真(zhen)空(kong)(kong)度。