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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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工艺管线中泵的升扬高度是否等于泵的扬程,为什么?
时间:2022-06-21 14:23
关键词:
机泵设备技术
机械工程
大学试题
工学
答案解析
<p> 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。</p>
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有人认为泵的扬程就是泵的升扬高度,有人认为泵的轴功率就是原动机的功率,我认为()
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