A modified transformation of circulation road of slurry pump seal with conical sealing wearings based on CFD

CHEN Yawei; LIANG Shuangyin; ZHANG Xingwen; XIONG Xin; TONG Lianyao

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A modified transformation of circulation road of slurry pump seal with conical sealing wearings based on CFD

Thermal Power Generation Vol. 43, Issue 11, Pages: 120-125(2014)

更新时间：2025-09-28

- A modified transformation of circulation road of slurry pump seal with conical sealing wearings based on CFD
- 作者机构：
  
  华北电力大学能源动力与机械工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621
- Published：2014
- 稿件说明：
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CHEN Yawei, LIANG Shuangyin, ZHANG Xingwen, et al. A modified transformation of circulation road of slurry pump seal with conical sealing wearings based on CFD[J]. Thermal Power Generation, 2014, 43(11): 120-125.
DOI：

CHEN Yawei, LIANG Shuangyin, ZHANG Xingwen, et al. A modified transformation of circulation road of slurry pump seal with conical sealing wearings based on CFD[J]. Thermal Power Generation, 2014, 43(11): 120-125. DOI：

摘要

某电厂600 MW机组用KWPKC 600-800型离心式脱硫浆液循环泵为锥形密封口环

在运行过程中出现较为剧烈且规律性的振动

影响了脱硫系统的正常运行。为此

运用CFD分析法计算得出泵内两相流流场的速度分布及压力分布

并对叶轮口环进行了加装挡流平台和改变密封流道的改造。改造后

对口环间隙分别为3、6mm的泵内流场进行数值模拟。结果表明

改造后泄流对入口流道处所形成的高压屏障处压力有所减小

噪声、振动明显减弱。

Abstract

The 600-800 type centrifugal desulfurization slurry cycling pump in a 600 MW unit applies conical sealing rings

which had intense and regular vibrations during work

affecting normal operation of the desulfurization system.Therefore

the CFD software was adopted to simulate the velocity distribution and pressure distribution of the two-phase flow in the pumps.Moreover

the impeller wearing ring was retrofitted by installing a buffle plat.After the transformation

numerical simulation on flow field inside the pump was carried out

with the ring gap of 3mm and 6mm

respectively.The results show that

the vibration of the slurry pump operation reduced dramatically.

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