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[" 변주 泵并联运行问题

2019-04-21View Original

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현재 요구 3t/h,,采用了两台1变为1t/h的泵。泵采用变频泵。此时如果工况需求变到 k t/h,此时如果开启一台1t/h变频至k t/h的泵,泵扬程会大于管路阻力。泵扬程根据比例大概在k m,管路流阻仅有4m。这种运行方式会不会有问题? 系统不设调节阀。
Reply #22019-04-21
변주 泵随意调整参照电流更直观。
Reply #32019-04-21
泵的运行点由泵的性能曲线和装置特性曲线决定
Reply #42019-04-22
변주 运行有两种模式,一种是人工调频,限定流量模式。一种是自动模式设定恒压。因管阻只有4米,人工调频能够很好的调节好流量。若用压力设定,很有可能会出现超流量运行。
Reply #52019-04-22
이 포스팅은 2Z--4Z- 3:41에 마지막으로 수정되었습니다. 流量从3t到kt,扬程从k到
Reply #62019-04-22
泵的运行点由泵的性能曲线和装置特性曲线决定
Reply #72019-06-06
变频离心泵的调节,需要根据管路管阻、背压、变频范围、控制方式来综合考虑。就楼主说的这种情况,如果没有背压、和手动控制的话,估计比较南实现。如果考虑背压的话,是可以的。当然如果采用手动控制也是可以的。单单来说泵,只要在变频流量-扬程范围内,都是可以的。
Reply #82019-06-06
设计300的系统,只输送100,完全没问题,随便玩。
Reply #92019-06-10
我理解应该没问题,同意4楼和7楼的意见。应该结合泵出口门调节管网阻力+变频调节应该可以实现。

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