工艺管线中泵的升扬高度是否等于泵的扬程，为什么？ -题库考试答案搜索网

工艺管线中泵的升扬高度是否等于泵的扬程，为什么？

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2022-06-21 14:23

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正确答案

二者不相等，泵的升扬高度是指泵将液体从低处送到高处的垂直高度，它不仅受到泵扬程的影响，还与管道的阻力损失有管。水泵的扬程是单位重量的液体在泵内获得的总能量，是指水泵能够扬水的高度，铭牌上标示的扬程是指水泵本身所能产生的扬程，它不含管道水流受摩擦阻力而引起的损失扬程。只有当泵的进出口容器都处于0.1MP，进出口管径相同及管路阻力可忽略不计时，泵的扬程才与举升高度相等。

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标签：机泵设备技术机械工程大学试题工学

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