水温对离心泵汽蚀影响的试验验证及测试系统的改进

Experimental Verification of the Influence of Water Temperature on the Cavitation of Centrifugal Pump and the Improvement of Cavitation test

介绍了一种集离心泵泵性能试验和汽蚀试验自动化运行的测试系统,包括其设备构成与测试方法;并通过具体试验,测试在不同水温下,离心泵NPSHr的变化趋势;验证介质温度对离心泵汽蚀的影响;对离心泵及汽蚀测试系统进行改进,减少介质温度对离心泵汽蚀测试的影响,提高试验精度。

The set of test system of centrifugal pump performance test and cavitation test automation operation was introduced, including their equipments and testing methods;And through specific experiments,Changing trend of the NPSHr was tested under different water temperature;verify that the media temperature has an affect on the cavitation.The centrifugal pump performance test system was improved,reducing the influence of the medium temperature on centrifugal pump performance test.