摘要
针对调节阀在实际工况中存在的噪声问题,通过建立调节阀三维模型,利用计算流体力学(CFD)计算阀内稳态流场和瞬态流场,再以流场信息为激励源,结合声学边界元法(BEM)中声振耦合的数值模拟方法,对该阀的噪声特性以及振动特性进行了分析。通过优化套筒设计参数,研究了不同设计参数对噪声特性的影响。研究表明:在设计压力范围内,该阀的噪声特性以及振动特性符合设计要求。对比分析不同参数下的套筒小孔锥度和套筒壁厚的流致噪声发现,在锥度为15°时,声压级达到最小值76.5 dB(A);在壁厚为10 mm时,声压级达到最小值70.74 dB(A)。研究结果可为研究新型调节阀的优化降噪提供参考。
Aiming at the noise problem of control valve in actual working conditions,by establishing a three-dimensional model of the control valve,using computational fluid dynamics(CFD)to calculate the steady-state flow field and transient flow field in the valve,and then using the flow field information as the excitation source,combined with the acoustic boundary element method(BEM)numerical simulation method of acoustic-vibration coupling,the noise and vibration characteristics of the valve are analyzed.By optimizing the design parameters of the sleeve,the influence of different design parameters on the noise characteristics is studied.The research shows that within the design pressure range,the noise and vibration characteristics of the valve meet the design requirements.By comparing and analyzing the flow-induced noise of the sleeve hole taper and sleeve wall thickness under different parameters,when the taper is 15°,the sound pressure level reaches the minimum value of 76.5 d B(A),and when the wall thickness is 10 mm;the sound pressure level reaches the minimum value of 70.74 d B(A).The research results can provide some references for the research on the optimization of noise reduction of the new type of control valve.
作者
张希恒
王宇
张彦彦
张耀壬
张超
ZHANG Xiheng;WANG Yu;ZHANG Yanyan;ZHANG Yaoren;ZHANG Chao(College of Petrochemical Engineering,Lanzhou University of Technology,Lanzhou 730050,China)
出处
《船舶工程》
CSCD
北大核心
2022年第5期102-106,129,共6页
Ship Engineering
关键词
调节阀
噪声
频谱特性
声振耦合
固有频率
sleeve regulating valve
noise
spectrum characteristics
vibro-acoustic coupling method
natural frequency
