【摘要】 用自建的电泵泵级试验台对广泛使用的Ｄ８２型电泵泵级进行了能量平衡试验。根据试验结果提出了减小水力损失、增大单级扬程、提高电泵泵级效率的途径。根据三元叶轮的结构形状设计理论对Ｄ８２型电泵叶轮进行了改型设计，改型设计后的叶轮，其水力性能的各个参数都有所改善，叶片角减小而叶片包角增大，延长了叶片间的流道，能提高单级扬程。更多还原

【Abstract】 Engergy balance experiment for electric submerged pump D82 was made on theself-developed tester.The test data were analyzed.Some ways for decreasing energy loss andincreasing pump efficiency and pressure head per stage are proposed.The impeller design ofD82 pump was improved on the basis of the 3-dimensional flow theory。更多还原