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

["다중 이심펌프 배출 밸브 개도가 작은 문제",, "공정 유량이 그렇게 필요하지 않기 때문에,다중 이심펌프 배출 밸브 개도가 작아서,최대 유량은 25t/시,설계 허브는

2019-06-02View Original

Thread Content

由于工艺流量不需要那么多,多级离心泵出口阀门开度偏小,额定流量25方每小时,设计扬程为200米,出口流量8-9方每小时,出口压力3MPa,对平衡盘和两端机封有影响吗?平衡管压力波动大,是这个原因造成的吗?
Reply #22019-06-02
是的,平衡管流量大,流速快,可能超温造成局部气化,可以感受一下平衡管温度,温度高的时候一定压力波动,甚至导致泵抽空。开返罐回流完美解决此问题。
Reply #32019-06-02
影响肯定是有地,泵腔高压端压力超过额定压力,平衡盘的轴向力增大,轴承寿命受影响;密封腔的压力也高于额定压力,密封寿命缩短;平衡管压力会波动的。最好增加出口回流线,走大循环,不要用小循环!!
Reply #42019-06-02
已经近最小流量点。泵稳定性会下降、振动升高、温度升高。 平衡盘影响有但不是主要问题。 主要是水力引起的振动等,机组整体寿命受影响。 建议增大流量。
Reply #52019-06-02
绝对影响,不需要大流量时及时停泵,或者增加出口回流; 我也遇见同样的用户,更甚,操作人员图方便,压进口阀门开多级泵,平衡装置几天就损坏。:L
Reply #62019-06-02
谢谢\ud83d\ude4f
Reply #72019-06-02
谢谢\ud83d\ude4f
Reply #82019-06-02
低于最小流量的话,现场会有很明显的异常现象,很容易发现,比如声音大,震动大等。
Reply #92019-06-03
应该开再循环以带走热量,否则泵电流波动,汽蚀。

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.