【摘要】 利用水泵汽蚀试验台和涂漆法对具有不同叶片进口角和叶片进口边位置的5种离心泵叶轮进行了系统的汽蚀损伤、汽蚀性能试验,弄清了3%扬程下降点汽蚀状态下叶轮形状、流量、运行时间对叶轮内汽蚀损伤的位置和程度的影响以及叶轮形状与汽蚀性能的关系,并结合叶轮内部流动规律和进口回流的发生对测试结果进行了分析。更多还原

【Abstract】 The cavitation erosion test and suction performance test for five types of centrifugal pump impellers with different blade inlet angles and different position of blade inlet edges are carried out by using the open-type pump test loop and painting method. The relationship among the shape of impellers, flow rate, pump running time and position, degree of cavitation erosion inside impellers are made clear under the state of 3% pump head dropping. The experimental results are discussed with the internal flow pattern and inlet reverse flow occurred in the pump.更多还原