Noise mechanism of pressure regulating valve in gas compressor station

In view of the noise levels in gas compressor station, taking the noise from pressure regulating valve in east Wuhan Compressor Station in Zhongwu Gas Pipeline as a study object, the noise generating mechanism is analyzed by gas dynamic theory, and the inner fow feld of noise source is simulated with fuid dynamics simulation technique. Results show that the noise is a combination of mechanical vibration and fuid fow, in which, the later is the main source of noise. The relationship between the noise and opening degree of pressure regulating valve is that in a certain range, the noise level increases with the opening degree of the valve. The study results can provide guidance and recommendations to the noise reduction for the subsequent gas compressor stations.