给排水泵站中真空泵的选型设计与应用  

Type selection and its application of vacuum-pump in water supply and drainage pump station

作　　者：邱象玉[1] 王明光[1] 丁峰[1] 

机构地区：[1]北京市水利规划设计研究院,北京100048

出　　处：《人民长江》2011年第19期91-94,共4页Yangtze River

摘　　要：水泵在启动过程中要求具有良好的吸水条件以避免发生水泵汽蚀。分析了目前给排水系统中常用的几种水泵启动过程吸水方式的优缺点及应用范围;通过论述水泵安装高程与真空泵抽真空高度的关系,分析了水环式真空泵的抽真空原理及选型计算,并结合设计实例详细论证了真空泵在给排水泵站系统应用中的优点及不足,为给排水泵站系统真空泵的选型设计提供了参考。The startup of pumps requires sound water absorption conditions in order to avoid pump cavitation.The advantages and disadvantages and the application scope of several water absorption modes commonly used in the startup of pumps are analyzed.Meanwhile,the relationship between the elevation of pump installation and vacuum-pumping height of the vacuum-pumping is given,and the type selection and principle of vacuum-pumping of the water ring vacuum-pump is also studied.Combined with the examples,the advantages and disadvantages of vacuum-pump in its application in the water supply and drainage system of the pump station is provided,which can provide reference for the design of type selection of vacuum-pump in water supply and drainage pump station.

关 键 词：真空泵 安装高程 汽蚀 选型设计 给排水泵站 

分 类 号：S277.92[农业科学—农业水土工程]