Vibration mechanism of pipeline systems induced by butterfly valves and its suppression countemeasures

王汀; 彰金宝; 翟鹏程; 谢天; 李毅刚; 王耀文; 穆祺伟; 于龙文; 邵建林; 刘观伟

doi:10.19666/j.rlfd.202410226

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Vibration mechanism of pipeline systems induced by butterfly valves and its suppression countemeasures

Thermal Power Generation Vol. 54, Issue 7, Pages: 118-126(2025)

更新时间：2026-08-11

- Vibration mechanism of pipeline systems induced by butterfly valves and its suppression countemeasures
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 国能三河发电有限责任公司
  3. 西安西热节能技术有限公司
  4. 西安交通大学能源与动力工程学院
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202410226
  CLC： TM621
- Published：2025
- 稿件说明：
移动端阅览
[1]王汀,彰金宝,翟鹏程,等.蝶阀引发管路系统振动机理及抑制措施[J],2025,54(07):118-126.
[1]王汀,彰金宝,翟鹏程,等.蝶阀引发管路系统振动机理及抑制措施[J],2025,54(07):118-126. DOI： 10.19666/j.rlfd.202410226.

DOI：10.19666/j.rlfd.202410226.

摘要

蝶阀在工业领域应用广泛，在某些工况，蝶阀内会产生较强的不稳定流动并引发管路系统振动。以某600 MW供热机组中低压连通管为研究对象，通过电厂实测与定常数值模拟相结合的方法揭示蝶阀内产生不稳定流动并导致连通管振动的机理。在此基础上，基于流型优化，设计了一种阀板加导流结构的新型蝶阀，并对原蝶阀和优化蝶阀进行振动最大工况的非定常数值模拟。结果表明，阀板加装导流结构后使大部分蒸汽主流沿低压缸进汽管中部流动，可有效减弱不稳定流动产生的激励力，抑制连通管振动。提出的新型蝶阀可应用于抑制存在蝶阀小开度工况管路系统的振动。

Abstract

Butterfly valves are widely used in industrial field

and under certain working conditions

strong unstable flow will occur in the butterfly valve and cause vibration in pipeline system. By taking the connecting pipe of the medium and low pressure cylinder of a 600 MW heating unit as the research object

the mechanism of unstable flow in the butterfly valve and the vibration of the connecting pipe was revealed through the combination of field measurement and steady numerical simulation. Then

based on the flow pattern optimization

a new type of butterfly valve with valve plate and diversion structure was designed

and the unsteady numerical simulation of the maximum vibration condition of the original butterfly valve and the optimized butterfly valve was carried out. The results show that

after adding the flow-guiding structure to the valve plate

most of the main steam flow moves along the middle of the steam inlet pipe of the low-pressure cylinder. This can effectively weaken the exciting force generated by unstable flow and suppress the vibration of the connecting pipe. The new butterfly valve proposed can be applied to suppress the vibration of the pipeline system with small opening of the butterfly valve.

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references

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