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矿用轴流式风机的噪声一直严重地危害着井下作业人员的身心健康.此种风机的进、排气噪声在往超过A声级100dB,甚至可达112dB,比机壳幅射的噪声高15～20dB左右.如能配置性能良好的消声器,则风机的强噪声可望有较大幅度的降低.设计此型消声器时,除了必须保证消声量外,还必须考虑其重量、体积、长度,过于庞大、笨重的消声器在井下无法使用.我们在设计阜新矿务局海州矿JBT-52型风机的消声器时,采取了计算机优化的方法,既保证了应有的消声量,又大大减轻了消声器的重量.
Mine axial fan noise has been seriously endangering the well-being of underground workers.This fan intake and exhaust noise in the past to A sound level of 100dB, or even up to 112dB, higher than the cabinet noise radiation 15 ~ 20dB or so.If you can configure a good performance muffler, the fan is expected to have a strong reduction of the strong noise.Design of this type muffler, in addition to the need to ensure that the muffler volume, but also must consider the weight, size, length, Too large bulky muffler can not be used in the underground We used in the design of Fuxin Mining Haizhou Coal Mine JBT-52-type fan muffler, computer optimization method to ensure that both the amount of noise reduction, but also greatly reduced Muffler weight.