["La pompe autoaspirante a un rendement fa fa低",,"La société a fabri une pompe autoaspirante ordinaire,流量55，扬程4转速ZA51-4改进的，自吸没有问题，但效率比正常泵低113%，这是正常的吗？请有经验的高手帮助分析下","Est-ce que la在改进型号时泵体水位基础没有加大？舌隔位置也需要修改"

2018-10-27View Original

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"Les modifications que que que que你说的这些改动是为了提高泵在自吸过程中的自吸性能的几点改动，但试验是在自吸完成后正常运行情况下进行的，效率不应该比原型泵差太多"

Reply #22018-10-27

"Je pense que一般低5-8个百分点足够了，再低的话一定是气液分离腔在泵吐出蜗壳出口位置突然扩散导致损失过大，导致效率下降太多"]

Reply #32018-10-27

你说的这些改动，是针对泵在自吸过程中，为了提高自吸性能的几点改动，但是试验是自吸完成后，正常运行情况做的，效率不应该比原型泵差太多

Reply #42018-10-27

我想象的一般低5-8个百分点足够了，再低的话，一定是气液分离腔在泵吐出蜗壳出口位置突然扩散，损失过大，导致效率下降太多

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