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["计量泵不上量

2018-07-31View Original

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"催化装置钝化剂计量泵一直不上量,出口阀关上压力表可以憋起来,量一点压力就下来并且一直不上涨,请问是怎么回事"
Reply #22018-07-31
"不上量和不上压是两回事,不上压不一定不上量啊"
Reply #32018-07-31
"一直是什么时候?从安上?还是有段时间了??"
Reply #42018-07-31
"就是没好过单向阀也检查了入口过滤器也检查了"
Reply #52018-07-31
"出口压,打开就不压压,不得压压肯定不得量啊"
Reply #62018-07-31
"不得压的情况下阻垢剂罐的液位有没有下降?如果没有下降,那就很有可能是泵出问题了。"
Reply #72018-07-31
"出口没排气、排气了??"
Reply #82018-07-31
"无压未必无量、出口有没有背压阀或者背压阀坏了;或者进口过滤器清理下是否不太通畅"
Reply #92018-07-31
"是不是选型有问题、泵的流量选小了"
Reply #102018-07-31
"都不是、出入口都检查了"
Reply #112018-07-31
"下降了、我以为背压建立完可以了但泵出口压力一直没有压力"
Reply #122018-07-31
"往复泵不得压压也会上量吗"
Reply #132018-08-01
"往复泵属于容积泵只要泵没有问题、不得压是因为管路阻力小但是量会正常输送的的你不要盯着压力表而应该关注流量表"
Reply #142018-08-01
"单向阀是不是卡住了还有就是管道安装时有点倾斜导致单向阀卡死"
Reply #152018-08-02
"当然会了往复泵的压力由背压决定无背压可能出现有量无压力"
Reply #162018-08-02
"不知你用的计量泵是哪一种如果如果是隔膜式的应考虑隔膜是否有破损导致泵不得量不足如果如果是柱塞式应考虑泵入口单向阀被异物卡住导致压缩做功时液体又自入口返回返回压力起不来最好最好是拆开单向阀球进行检查排除猜测的可能性"

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