噪声是一种危害很广的环境污染。从物理学观点讲,噪声就是各种不同频率和声强的声音无规律的杂乱组合。泵站在供水、环境工程以及很多工业中是大量应用的设备。泵站中的噪声是很大的,其噪声程度可达90dB(A)。泵站中存在着三种噪声源:即电机产生的电磁性噪声,通风机产生的空气动力性噪声,电机和水泵 Noise is a very harmful environmental pollution. From a physical point of view, noise is a messy combination of sounds of different frequencies and intensities. Pump stations are a large number of applications in water supply, environmental engineering and many industries. The noise in the pump station is significant with a noise level up to 90 dB (A). There are three types of noise sources in the pumping station: electromagnetic noise generated by the motor, aerodynamic noise generated by the fan, electrical machinery and water pump