组合式离心泵的设计与试验  

Design and Test of Combined Centrifugal Pump

作　　者：任丰兰[1,2] REN Fenglan(Mechanical and Electrical Department,Changde Vocational Technical College,Changde 415000,Hunan,China;School of Mechanical and Electrical Engineering,Central South University,Changsha 410083,China)

机构地区：[1]常德职业技术学院机电系,湖南常德415000 [2]中南大学机电工程学院,长沙410083

出　　处：《实验室研究与探索》2022年第6期122-125,共4页Research and Exploration In Laboratory

基　　金：湖南省自然科学基金资助项目(2020JJ7001)。

摘　　要：设计了一种由旋片式的真空泵和离心泵的组合式离心泵,通过旋片式的真空泵抽真空形成的压差,将水压入离心式水泵中,再通过离心泵排水,达到抽水的目的。对组合式离心泵的结构进行了设计,对其可行性及典型元件进行了分析和选型,并通过离心泵和组合式离心泵在吸程相同的条件下进行2组抽水对比试验。试验结果表明:组合式离心泵避开了灌注引水的操作要求,克服了一般离心泵不能把吸程大于3 m水吸上来,即组合式离心泵把吸程从3 m提高到了6 m,提高了泵的吸程和工作效率,具有操作方便,自动化程度高等优点,为该泵的工程应用提供了试验数据。A combined centrifugal pump is designed,itis composed of a rotary vane vacuum pump and a centrifugal pump.The vacuum is pumped by the rotary vane vacuum pump,the atmospheric pressure puts the water pressure into the centrifugal pump,and then the water is drained by the centrifugal pump to achieve the purpose of pumping water.This paper designs the structure of the combined centrifugal pump,the working principle is expounded.The feasibility of the combined centrifugal pump is analyzed,the typical components of the combined centrifugal pump is selected.And a comparative test between the centrifugal pump and the combined centrifugal pump is made.The test shows that the combined centrifugal pump increases the suction stroke from 3 to 6 meters,and the trouble of filling and diversion is avoided,the suction stroke and work efficiency of the pump is improved.It has the advantages of convenient operation and high degree of automation,and the test data for engineering applications areprovided.

关 键 词：离心泵 旋片式真空泵 吸程 试验分析 

分 类 号：TH31[机械工程—机械制造及自动化]