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风机房是工业厂房中量大面广的高噪声站房,一般热加工车间以及锅炉房、煤气站都设有风机房。其主要设备为各种定容式风机和高压离心风机。噪声级高,一般为110～125dB(A);噪声频带宽,低中频突出;噪声传播距离远,影响范围广。它是工厂中的一大公害,因此,风机房的噪声控制已成为迫切需要解决的问题。为了全面控制风机房噪声,我们通过调查研究、科学试验和工程实践,提出了负压式、机械通风式、自冷式三种消声隔声室型风机房。其中负压式—消声隔声室型,适用于各类鼓风机房。它合理解决了机房密闭隔声和机组通风散热的矛盾,降噪
Fan room is a large number of industrial plants in the vast noise of the station, the general thermal processing workshop and boiler room, gas station has a fan room. Its main equipment for a variety of fixed-capacity fans and high-pressure centrifugal fan. High noise level, generally 110 ~ 125dB (A); noise bandwidth, low IF highlight; noise propagation distance, the impact of a wide range. It is a public hazard in the factory, therefore, the noise control of the wind turbine room has become an urgent problem to be solved. In order to fully control the noise in the wind turbine room, we put forward three kinds of anechoic soundproof room with fan chamber, which are negative pressure type, mechanical ventilation type and self-cooling type through investigation and research, scientific experiment and engineering practice. One negative pressure - silencer room sound insulation, suitable for all types of blower room. It reasonably solves the contradiction between the sound insulation of the engine room and the ventilation of the unit, and noise reduction