论文部分内容阅读
一、阀门噪声的危害在目前的炼油化工装置中,阀门噪声已成为三大主要噪声源之一。由于炼油化工装置中使用的阀门数量大,种类多;加之管线密布,给噪声的传播提供了条件,所以阀门噪声的危害尤为突出。阀门产生的噪声声压级可达90～120dB(A),且为高频性质,由于分布面广,使得整个装置区的噪声水平提高,对生产装置工人和附近居民有严重的影
First, the valve noise hazards In the current refining equipment, valve noise has become one of the three major noise sources. Due to the large number of valves used in the refinery and petrochemical plant, there are many types of valves. In addition, the pipeline is densely covered, providing the conditions for the propagation of noise. Therefore, the valve noise is particularly harmful. The sound pressure level generated by the valve can reach 90 ~ 120dB (A), and is of high frequency. Due to the wide distribution, the noise level of the entire installation area is increased, and there is a serious shadow on the workers of production facilities and nearby residents