无底阀抽水技术是离心式水泵在取消底阀后,不设真空泵的情况下采用的一种简易启动方法。它的优点是:结构简单,成本低,操作方便,工作可靠,节省电能,提高工效,并可减少意外停机而引起“水锤”危害。特别是用于水草杂物多的河流、湖泊及深井抽水更为有利。 Bottomless valve pumping technology is a simple start-up method used in the case of a centrifugal pump without a vacuum pump after the bottom valve is canceled. Its advantages are: simple structure, low cost, convenient operation, reliable operation, energy saving, improved work efficiency, and reduce the accidental shutdown caused “water hammer” hazards. Especially for the water, debris and more rivers, lakes and deep well pumping more favorable.