针对我国北方水土流失严重,水源含沙量大,离心泵制造工艺比较滞后,装置效率仍在65%以上等诸多原因造成其运行成本、检修费用高的现状,简要介绍离心泵的工作原理、基本结构;详尽分析各种故障产生的原因以及切实可行的排除方法。尤其对叶轮以及其他过水部件汽蚀产生的原因、危害以及排除方法做了详尽的阐述。 Centrifugal pump for a serious cause of soil erosion, water content is large, centrifugal pump manufacturing process is lagging behind, the efficiency of the device is still above 65% and many other reasons for its operating costs, overhauling the high cost of the status quo, briefly introduce the working principle of the centrifugal pump, the basic Structure; detailed analysis of the causes of various failures and practical methods of exclusion. In particular, the impeller and other parts of the water vapor cavitation causes, hazards and exclusion methods are described in detail.