上海嘉定娄塘水厂工人在华东市政工程设计院的支持下,发扬敢想、敢干的革命精神,大胆地提出拆除高压离心式水泵吸水管底阀,改灌水排气启动为用水射器直接抽气启动初步获得成功。一、工艺经济效果用水射器直接抽气,比用灌水排气启动时间迅速,安全,可靠。由于拆除了吸水管底阀,水泵负荷改轻,节省电力19%,增加了出水量。利用水射器代替真空泵,材料省,成本低,生产方便。 Under the support of East China Municipal Engineering Design Institute, the workers of Jiading Laitang Waterworks in Shanghai initiated the revolutionary spirit of daring to think and dare to do their work. They boldly proposed removing the high-pressure centrifugal water pump suction pipe bottom valve and changing the water discharge and starting the water jet directly. The pumping start was initially successful. First, the technical and economic effects of direct water pumping, faster than the start time with irrigation water, safe, reliable. As the bottom valve of the suction pipe was removed, the load of the pump was changed lightly, saving 19% of the power and increasing the amount of water discharged. The use of a water jet instead of a vacuum pump saves material, saves money, and is easy to produce.