前置泵调速(给水泵汽蚀)分析

For the Pre-pump Speed(to Pump Cavitation)Analysis

本文讨论了火电厂液力耦合器调速的电动给水泵进行变频改造时,前置泵的改造方案。通过发电机组真实的运行数据,分析了前置泵调速运行时给水泵的汽蚀问题,得出了对于大多数机组在绝大部分工况下,前置泵调速运行是可行的结论,只有少数前置泵参数余量较小的机组,才必须进行定速驱动改造。

This article discusses the thermal power plant when fluid coupling speed of the electric feed pump frequency transformation, Booster Pump rehabilitation programs. Generators run by real data, analyze the problem to pump cavitation booster pump speed running, obtained for most units in most conditions, the booster pump speed is feasible to run, only a few pre-set pump parameters smaller margin, it must be constant speed drive transformation.