Flow field in regulating valve of water storage tank for ultra supercritical unit boiler:characteristics and optimization

HE Qingzhong; LIU Jia; DONG Xuelian; GUO Bin; ZHANG Cheng; CHEN Xi; LIU Yucong; LIU Yi

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Flow field in regulating valve of water storage tank for ultra supercritical unit boiler:characteristics and optimization

Thermal Power Generation Issue 9, (2016)

更新时间：2025-09-28

- Flow field in regulating valve of water storage tank for ultra supercritical unit boiler:characteristics and optimization
- 作者机构：
  
  四川理工学院机械工程学院,四川,自贡,643000
- 作者简介：
- 基金信息：
- DOI：
  CLC： TH138.52
- Published Online：25 September 2016，
  
  Published：2016
- 稿件说明：
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HE Qingzhong, LIU Jia, DONG Xuelian, et al. Flow field in regulating valve of water storage tank for ultra supercritical unit boiler:characteristics and optimization[J]. Thermal Power Generation, 2016, (9).
DOI：

HE Qingzhong, LIU Jia, DONG Xuelian, et al. Flow field in regulating valve of water storage tank for ultra supercritical unit boiler:characteristics and optimization[J]. Thermal Power Generation, 2016, (9). DOI：

摘要

超超临界机组锅炉储水罐调节阀是机组的重要阀门之一。为了探索该阀门的内部流场变化规律

本文建立了该阀门流场模型

基于Fluent软件湍流模型与多相流技术相结合

对阀门流场进行了模拟。结果表明:该阀门在设计结构及其工况下

介质处于临界状态

其流过阀杆、阀座间隙时会发生严重的汽化作用

使得流场极不稳定；阀杆角度对流场有较大影响

随着阀杆角度增加

介质速度会逐渐降低

汽化总量减少；在阀门管配流道增加匀流板后

流场速度可降低19.2%

含汽总量降低86.4%

整个流场变得较为均匀。

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