水(shui)(shui)環(huan)(huan)真空(kong)(kong)泵(beng)(beng)(beng)(beng)機(ji)組(zu)(zu)以(yi)羅茨(ci)泵(beng)(beng)(beng)(beng)為(wei)(wei)(wei)(wei)主泵(beng)(beng)(beng)(beng)，以(yi)水(shui)(shui)環(huan)(huan)泵(beng)(beng)(beng)(beng)為(wei)(wei)(wei)(wei)前級泵(beng)(beng)(beng)(beng)串(chuan)聯而(er)成(cheng)的(de)。水(shui)(shui)環(huan)(huan)真空(kong)(kong)泵(beng)(beng)(beng)(beng)機(ji)組(zu)(zu)選(xuan)用(yong)(yong)的(de)水(shui)(shui)環(huan)(huan)泵(beng)(beng)(beng)(beng)成(cheng)為(wei)(wei)(wei)(wei)前級泵(beng)(beng)(beng)(beng)比其(qi)它(ta)的(de)真空(kong)(kong)泵(beng)(beng)(beng)(beng)更為(wei)(wei)(wei)(wei)有利，因為(wei)(wei)(wei)(wei)它(ta)不但(dan)克服了單臺水(shui)(shui)環(huan)(huan)泵(beng)(beng)(beng)(beng)使用(yong)(yong)時(shi)極(ji)限(xian)壓力(li)差（機(ji)組(zu)(zu)的(de)極(ji)限(xian)壓力(li)比水(shui)(shui)環(huan)(huan)泵(beng)(beng)(beng)(beng)的(de)極(ji)限(xian)壓力(li)有很大的(de)提高(gao)），在一定(ding)壓力(li)下抽氣速(su)率低的(de)缺點，而(er)且與此同時(shi)又(you)保留了羅茨(ci)泵(beng)(beng)(beng)(beng)能(neng)(neng)(neng)迅(xun)速(su)工(gong)作，有比較大抽氣速(su)率的(de)優點。它(ta)能(neng)(neng)(neng)夠(gou)適應(ying)抽除大量的(de)可凝性蒸汽(qi)，尤其(qi)是當氣鎮油封機(ji)械真空(kong)(kong)泵(beng)(beng)(beng)(beng)排除可凝性蒸汽(qi)能(neng)(neng)(neng)力(li)不夠(gou)，或使用(yong)(yong)的(de)溶(rong)劑能(neng)(neng)(neng)使泵(beng)(beng)(beng)(beng)油惡(e)化進(jin)而(er)影響性能(neng)(neng)(neng)，或者是真空(kong)(kong)系統不允許油污染時(shi)更為(wei)(wei)(wei)(wei)明顯。如(ru)果配有防爆電機(ji)及電器(qi)時(shi)并遵守相應(ying)的(de)安(an)全(quan)規則下,還能(neng)(neng)(neng)夠(gou)抽除易燃易爆的(de)氣體(ti)。
旋(xuan)片(pian)(pian)真(zhen)(zhen)空(kong)泵(beng)(beng)(beng)(beng)機(ji)組是以(yi)泵(beng)(beng)(beng)(beng)為(wei)主泵(beng)(beng)(beng)(beng)，以(yi)旋(xuan)片(pian)(pian)泵(beng)(beng)(beng)(beng)為(wei)前級泵(beng)(beng)(beng)(beng)串聯而(er)成的(de)(de)(de)。旋(xuan)片(pian)(pian)真(zhen)(zhen)空(kong)泵(beng)(beng)(beng)(beng)機(ji)組選用(yong)的(de)(de)(de)旋(xuan)片(pian)(pian)泵(beng)(beng)(beng)(beng)作(zuo)為(wei)前級泵(beng)(beng)(beng)(beng)，因此(ci)它克服了(le)旋(xuan)片(pian)(pian)泵(beng)(beng)(beng)(beng)使用(yong)時在(zai)一定壓力(li)下抽(chou)氣(qi)速率(lv)低的(de)(de)(de)缺點，而(er)且同時保留了(le)羅茨(ci)泵(beng)(beng)(beng)(beng)能迅速工作(zuo)，有比較大抽(chou)氣(qi)速率(lv)等優點。因為(wei)該機(ji)組的(de)(de)(de)結構緊湊、抽(chou)速大、占地(di)面積小，所以(yi)可以(yi)代替(ti)多(duo)臺機(ji)械真(zhen)(zhen)空(kong)泵(beng)(beng)(beng)(beng),因此(ci)旋(xuan)片(pian)(pian)泵(beng)(beng)(beng)(beng)機(ji)組廣泛(fan)地(di)用(yong)于在(zai)真(zhen)(zhen)空(kong)冶煉、電(dian)力(li)電(dian)容(rong)(rong)器、變(bian)壓器真(zhen)(zhen)空(kong)熱處(chu)理、真(zhen)(zhen)空(kong)鍍(du)膜設備的(de)(de)(de)預抽(chou)、電(dian)真(zhen)(zhen)空(kong)半(ban)導體(ti)等行業中(zhong)抽(chou)除密閉容(rong)(rong)器中(zhong)含(han)氧不(bu)高的(de)(de)(de)、無爆炸性(xing)的(de)(de)(de)、對金屬無腐蝕(shi)性(xing)的(de)(de)(de)、與泵(beng)(beng)(beng)(beng)油(you)不(bu)會(hui)起化學反應的(de)(de)(de)也不(bu)會(hui)含(han)有顆(ke)粒塵埃的(de)(de)(de)氣(qi)體(ti)。 | 
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