HCBBS Forum (Français)
Submit Chemical Projects / Find Solutions
Amplify Your Requirements on a Broader Chemical Platform *Engineering · Technology · Equipment · Solutions*
Submit Request

["1. Centrifugee

2018-12-22View Original

Thread Content

" " "Lorsque le centrifugee est启动时,回流是否有必要打开?这是否会影响泵的运行吗回流是否会影响泵的运行"
Reply #22018-12-22
" " "Lorsque le centrifuffee est启动时,出口阀应该关闭,然后慢慢打开。 �回流只是用于调节所需的流量大小 "这 " " " " " " " " "Lorsque le centrifuffee est启动时 "出口阀必须关闭 " � � " " " " " " " " " "Lorsque le centrifuffee est启动时 " "阀必须关闭 " "然后充分排气 " "以确保泵充分灌泵 " "否则回流只是用于调节所需的流量大小 " " " " " " " " " " "Lorsque le centrifuffee est启动时 " "阀必须关闭 " "然后充分排气 " "以泵充分灌泵 " "然后启动泵时 " "缓打开入口 " " " " " " " " " " " "Lorsque le fluente容易气化的需要开 " "其他的没必要"
Reply #32018-12-22
低温泵还是常温泵?如果常温水泵不必设计回流;如果是低温泵在启泵时最好打开一定开度以便建立压差。
Reply #42018-12-22
出口阀应该关闭,然后慢慢打开。回流只是调节所需流量的大小,不会影响泵的运行。
Reply #52018-12-23
多级离心泵或者高扬程大流量的离心泵,一般都会设计最小流量线 这是为了保证机泵在开启时有一定流量经过,防止泵气蚀发热 在液态烃的输送中经常用到 一般开泵时要将出口关闭,最小流量线全开,待机泵开启后稳定时,缓慢打开出口,关小最小流量阀
Reply #62018-12-23
离心泵开启前,出口阀必须关闭,并且排气,致使充分灌泵(否则不上压,我就遇见没灌好泵不上压的情况),然后开启泵的时候缓慢打开出口阀
Reply #72019-01-14
介质容易气化的需要开排气线其他的没必要

Submit a Project

**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections

Submit Request — Free Consultation

Disclaimer

This is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.