高压大流量切断阀的气动噪声仿真与分析  

Aerodynamic Noise Simulation and Analysis of High-pressure High-flow Cut-off Valve

作　　者：王照彤 田捍卫 莫延亮 周兆年 华霆锋 钱锦远[1] 李文庆 WANG Zhao-tong;TIAN Han-wei;MO Yan-liang;ZHOU Zhao-nian;HUA Ting-feng;QIAN Jin-yuan;LI Wen-qing(Institute of Process Equipment,Zhejiang University,Hangzhou 310027,Zhejiang,China;Henan Aerospace Hydraulic Pneumatic Technology Co.,Ltd.,Zhengzhou 450000,Henan,China;Fundamentals and Electromechanical Systems,Hangzhou 310027,Zhejiang,China)

机构地区：[1]浙江大学化工机械研究所,浙江杭州310027 [2]河南航天液压气动技术有限公司,河南郑州450000 [3]流体动力基础件与机电系统全国重点试验室,浙江杭州310027

出　　处：《阀门》2024年第9期1067-1071,共5页Chinese Journal of Valve

摘　　要：随着工业技术的快速发展,高压大流量切断阀在油气输送、化工等领域应用广泛,但阀门在运行过程中会产生噪声。针对上述问题,本文基于声类比理论,对单向阀在100%开度下进行Fluent流场分析和Actran声场分析,研究阀门内部流动及内外噪声分布。结果表明,低频率时介质流动产生的噪声扩散到空气时,噪声较为整齐,且声压级较高;在数值模拟的频率范围内,正常工作下产生的噪声相对稳定;噪声指向性分布具有对称性。研究高压大流量切断阀的噪声分布,对后续的设计及优化具有重要指导意义。With the rapid development of industrial technology, high pressure and large flow cut-off valves are widely used in oil and gas transportation, chemical industry and other fields, but the valve will produce noise during operation.In view of the above problems, based on the acoustic analogy theory, this paper analyzes the Fluent flow field and Actran sound field of the check valve at 100 % opening, and studies the internal flow and internal and external noise distribution of the valve.The results show that when the noise generated by the medium flow diffuses into the air at low frequency, the noise is more neat and the sound pressure level is higher.In the frequency range of numerical simulation, the noise generated under normal operation is relatively stable;the noise directivity distribution is symmetrical.Studying the noise distribution of high-pressure and large-flow cut-off valves has important guiding significance for subsequent design and optimization.

关 键 词：切断阀 气动噪声 数值模拟 噪声频率 指向性分布 

分 类 号：TH134[机械工程—机械制造及自动化]