论文部分内容阅读
离心泵启动前必须引水,否则水泵的叶轮只能搅动泵体内的空气。所谓引水,就是将泵体和吸水管充满水。水泵引水的方法通常至少有8种。选择哪一种引水方法最好呢?这就要掌握各种方法的特点。这些方法是:(1)吸水管自灌引水;(2)足阀引水;(3)外部供水引水;(4)自控或手控水泵引水;(5)扬水管旁通阀引水;(6)水射器引水;(7)自动引水器引水;(8)人工操作或
Water must be drawn before the centrifugal pump starts, otherwise the impeller of the pump can only agitate the air in the pump body. The so-called diversion of water is to fill the pump body and suction pipe with water. There are usually at least eight ways to pump water. Which kind of water diversion method is best? It is necessary to grasp the characteristics of various methods. These methods are: (1) self-irrigation of suction pipes; (2) diversion of foot valves; (3) external water supply diversion; (4) automatic or manual pump diversion; Water injector diversion; (7) Automatic diverter diversion; (8) Manual operation or