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2018-01-11View Original

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为什么要求泵额定工况到关死点扬程上升不超过
Reply #22018-01-11
API610里面有规定
Reply #32018-01-11
这个我知道,但是我没有理解规定的根本原因是什么
Reply #42018-01-14
这样是泵有一个稳定的扬程和效率。机械上就不懂了
Reply #52018-01-15
我理解有两个原因: 1.稳定上升的性能曲线,更好调节流量,当系统曲线发生改变时,压力波动不会太大,否则如果曲线过于陡,当流量改变时,泵的扬程变化太大。 2.对下游设备的影响,原因是API610里覆盖的是石油化工行业难度最大的泵,想象一下,一台500米扬程的BB5泵,如果关死点扬程过高,会导致下游系统的承压等级做相应的提高,导致下游设备过设计(over-design)

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