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在离心泵站的运行中,经常遇到事故停泵或供电突然中断,由于闸阀不能及时关闭,引起机组超速倒转和水锤压力,致使设备和管道受到破坏。为了解决上述问题,我们在邹县湖水东调灌区宋山站,进行了现场试验,结果表明:用水压闸阀和电磁闸阀替换现有的手动闸阀,达到了防止机组超速倒转,减少水锤压力的目的。
In the operation of centrifugal pump station, often encounter an accident to stop pumping or sudden interruption of power supply, due to the gate valve can not be closed in time, causing the unit speeding reversal and water hammer pressure, resulting in damage to equipment and pipelines. In order to solve the above problems, we carried out on-site tests in Songshan Station of East Lake Irrigation Irrigation District in Zou County. The results show that replacing the existing manual gate valve with water pressure gate valve and electromagnetic gate valve can prevent the unit from over speeding and reducing water hammer pressure the goal of.