文章摘要
吴猛猛,高艳,明岳,李海斌,钟小雁,陈明辉.基于声比拟的压力管路阀门内漏噪声数值预报研究[J].声学技术,2023,42(2):234~241
基于声比拟的压力管路阀门内漏噪声数值预报研究
Numerical prediction of internal leakage noise in pressure pipeline valve based on acoustic analogy
投稿时间:2021-09-05  修订日期:2021-12-05
DOI:10.16300/j.cnki.1000-3630.2023.02.017
中文关键词: 声比拟  噪声预报  球阀  数值模拟
英文关键词: acoustic analogy  noise prediction  ball valve  numerical simulation
基金项目:华能集团总部科技项目(HNKJ21-HF197)。
作者单位E-mail
吴猛猛 海军潜艇学院, 山东青岛 266199
中国科学院声学研究所, 北京 100089 
 
高艳 中国科学院声学研究所, 北京 100089 gaoyan@mail.ioa.ac.cn 
明岳 海军潜艇学院, 山东青岛 266199  
李海斌 华能湖南岳阳发电有限责任公司, 湖南岳阳 414102  
钟小雁 华能湖南岳阳发电有限责任公司, 湖南岳阳 414102  
陈明辉 华能湖南岳阳发电有限责任公司, 湖南岳阳 414102  
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中文摘要:
      阀门内漏对压力管路系统安全运行具有很大危害。基于声比拟理论,使用Fluent软件分别进行稳态及非稳态计算,获得阀门内漏的流场和声场特性。研究了管内介质、工作压力、横向距离以及阀门泄漏度对阀门内漏噪声的影响。通过实验对数值模拟方法的正确性进行了验证。研究表明,阀门内漏流场旋涡与噪声直接相关。阀门内漏的声场信号为宽频随机信号,气阀内漏声场强度大于水阀,声压级随工作压力的增大而增大,并且随阀门泄漏度和阀后横向距离先增后减。研究结果可为阀门内漏的噪声预报以及阀门内漏检测提供借鉴。
英文摘要:
      Valve leakage threatens the safe operation of pressure pipeline systems. Based on the theory of acoustic analogy, the steady-state and unsteady-state simulated calculations for flow field and sound field of valve leakage in pressure pipeline are carried out by using Fluent fluid simulation software. The results show that the vortex in the valve leakage field is directly related to the noise, the sound field signal in the valve leakage is a wide band random signal, the sound field intensity in the valve leakage field is greater than that in the water valve, and the sound pressure level increases with the increase of working pressure, and increases first and then decreases with the valve leakage rate and the transverse distance after the valve. This paper has important reference value for noise prediction and valve leakage detection.
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