高温高压降多级套筒调节阀噪声抑制研究

High temperature and high pressure drop multistage sleeve regulator noise suppression research

针对高温高压降下调节阀引起高噪声的问题,基于多级降压理论,建立了多级套筒调节阀高温水流场模型及噪声计算模型。获得了不同套筒模型条件下阀内压力、速度等流场信息,研究了套筒层数对阀内压力、流速及噪声的影响。研究结果表明:高压降调节阀内采用多级消声节流套筒可有效实现逐级降压、限制流速、抑制噪声的目的。

Aiming at the problem of strong noise caused by cavitation in high temperature and high pressure-drop multistage sleeve control valve. Based on multistage decompression theory,flow model noise calculation model were established. The distributions of pressure and velocity were obtained under different model conditions,influences of sleeve stages on pressure,velocity and noise were studied. The results show that multistage muffler sleeve could achieve the aims of gradual pressure-drop,limiting velocity and suppressing noise.