主题: 油气 【求助】泵与阀
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旧 May 12th, 2008, 05:22     #8
zyb
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作者: piper 查看帖子
1. 我猜你指的是调节阀(control valve)。通过阀门的流量是进出口压差以及阀门指数(Cv)的函数。你还需要知道流体的密度。

2. 如果是离心泵,扬程相差不少的两台泵不能并联。因为低扬程的泵出口压力永远达不到高扬程泵的出口压力,低扬程的泵的流量永远为零。
Cv本身也和阀门的开度有关吧?
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