抽水蓄能电站压水气系统中压储气罐排污工况致气罐噪声的数值模拟研究

Numerical Simulation Study on Tank Noise Caused by Pressure Tank Discharge in Pressure Water-Air System of PumpedStorage Power Station

为分析抽水蓄能电站压水气系统中压储气罐排污工况运行时气罐存在的噪声污染问题,对中压储气罐及其附属设施进行全通道非稳态数值模拟,详细分析了排污工况中气罐的流场与声场状态。使用近场噪声分析方法,对排污工况下气罐的噪声问题进行了全面分析,并根据噪声强度分布,探求了噪声发生机理并精确定位了噪声源的位置,为排气压水系统的进一步优化设计、降低气罐噪音提供了科学依据和重要支撑。

In order to analyze the noise pollution of the medium pressure gas storage tank in the pressure water and gas system of a pumped storage power station,a full-channel unsteady numerical simulation was carried out on the medium pressure gas storage tank and its auxiliary facilities,and the flow field and sound field of the tank in the discharge condition were analyzed in detail.The near field noise analysis method is used to analyze the noise problem of the gas tank under the discharge condition in detail,and the noise mechanism is explored according to the noise intensity distribution and the precise location of the noise source is located,which provides scientific basis and important support for the further optimization design of the exhaust pressure water system and the reduction of the gas tank noise.