流体机械

2001, (03) 8-11+3

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低比转数高效率蜗壳泵的开发
Development of High Efficiency Volute Pump of Very Low Specific Speed

Junichi Kurokawa,蒋修治
Junichi Kurokawa et al

摘要(Abstract):

为了开发出一种高效率低比转数 (ns<70 )的蜗壳泵 ,总结了比转数ns=60时的两种试验结果 ,进行了叶轮设计和蜗壳设计的优化 ,并进行了新的试验 ,以揭示叶轮与蜗舌之间的流动干扰。结果表明 ,低比转数蜗壳泵不宜采用常规设计 ,进而提出了一种新的设计方法。
To develop a high efficiency volute pump in the very low n s range, two kinds of test results at n s =60 are summarized, the optimization of impeller using 11 impellers and the optimization of volute casing changing volute design parameters are done, and new test is added to reveal the flow interference between inpeller and volute tongue. The results reveals that the conventional design is not suitable for designing a very low n s volute pump and a new design is presented.

关键词(KeyWords): 低比转数;蜗壳泵;叶轮;蜗壳;试验
low specific speed,volute pump,impeller,volutes,test

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作者(Author): Junichi Kurokawa,蒋修治
Junichi Kurokawa et al

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