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2018-11-06View Original

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{"离心泵出口压力和扬程的换算"}
Reply #22018-11-06
{"假设泵进出口没有高差,那泵的扬程就是出口的静压能能吗?也就是H=△P/ρg吗?那还有动能呢,泵的数据表里一般只有进出口压力没有出口速度那就是说没办法计算扬程吗?"}
Reply #32018-11-07
{"不是不是,只是很小可以忽略的。泵出入口管径有吧泵流量有吧这样不就可以计算泵出入口流速了吗只不过做差后数值上上比较小所以可以忽略"}
Reply #42018-11-07
{"https://bbs.hcbbs.com/thread-11366-1.html"}
Reply #52018-11-07
{"本帖最后由 小化工工程师 于 218-1-8 8:编辑 你迷迷糊糊说的的都是啥呀简单说泵的扬程是出口压力减进口压力除以ρg即可"}
Reply #62018-11-07
{"这个回答一针见血佩服!"}
Reply #72018-11-08
{"人家问了是不是和动能变化有关请看清楚了"}
Reply #82018-11-08
{"请你看清再说行不行! 你知道什么叫泵的进口压力、出口压力吗? 如果泵入口是个设备(或者一个罐)通过入口管接入泵入口那么泵的入口压力是啥?你能检测到啥? 你能知道的只有罐的压力入口管压损是要计算的根据流速计算。通过这两部分算出入口压力。出口压力同样如此! 你说在算管损的时候跟动能变化有关系吗?!"}
Reply #92018-11-08
{"通常水泵的扬程是由泵出口与输送目的地高差及沿途管损之和构成。虽然没有高差但只要是泵工作输送介质管路就会有管损。"}
Reply #102018-11-08
{"来这里不是反问我的,请不要用那么多反问句回答问题就一项一项好好回答。要让问问题的人懂得你说的。"}

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