真空引水系統是一種安裝在無底閥液體上的泵，使用真空泵輔助引水系統。真空引水系統分為給水泵和管道兩部分，部分為真空泵和輔助管道。真空系統可實現真空吸入和真空保持功能，解決泵啟動前的排氣引水過程，方便泵隨時快速啟動。
給(gei)水(shui)(shui)泵和輔助管(guan)道由(you)進水(shui)(shui)管(guan)、給(gei)水(shui)(shui)泵、出水(shui)(shui)管(guan)和機密封沖(chong)洗管(guan)組(zu)成。泵工(gong)作時，在(zai)給(gei)水(shui)(shui)泵工(gong)作的(de)作用(yong)下，進水(shui)(shui)管(guan)通(tong)過出水(shui)(shui)管(guan)輸送給(gei)用(yong)戶。
真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)及輔助管(guan)(guan)道由真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)罐(guan)、真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)、氣水(shui)(shui)分(fen)離器、水(shui)(shui)箱、水(shui)(shui)箱補充管(guan)(guan)、控制(zhi)柜、連(lian)接(jie)(jie)管(guan)(guan)和儀表閥組成(cheng)。在啟(qi)動給水(shui)(shui)泵(beng)(beng)(beng)(beng)之前，進(jin)水(shui)(shui)管(guan)(guan)、給水(shui)(shui)泵(beng)(beng)(beng)(beng)和出水(shui)(shui)管(guan)(guan)中(zhong)的(de)氣體通過泵(beng)(beng)(beng)(beng)出口泵(beng)(beng)(beng)(beng)出。首先(xian)進(jin)入真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)罐(guan)（水(shui)(shui)混合(he)物，水(shui)(shui)留在真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)罐(guan)中(zhong)），然(ran)后(hou)(hou)進(jin)入真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)，然(ran)后(hou)(hou)在真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)的(de)作用(yong)下進(jin)入氣水(shui)(shui)分(fen)離器，最后(hou)(hou)排入大(da)氣。連(lian)接(jie)(jie)管(guan)(guan)連(lian)接(jie)(jie)到(dao)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)罐(guan)底部的(de)進(jin)水(shui)(shui)管(guan)(guan)，形成(cheng)平衡(heng)管(guan)(guan)，以(yi)保持(chi)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)罐(guan)中(zhong)的(de)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)度。引(yin)水(shui)(shui)完成(cheng)后(hou)(hou)，可隨時啟(qi)動供水(shui)(shui)泵(beng)(beng)(beng)(beng)。當(dang)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)度低(di)于最低(di)值時，啟(qi)動真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)，將系統的(de)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)度泵(beng)(beng)(beng)(beng)提(ti)高到(dao)最高值，然(ran)后(hou)(hou)停止真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)。最低(di)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)度應確保供水(shui)(shui)泵(beng)(beng)(beng)(beng)隨時啟(qi)動。
