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石油一厂对一电动离心泵房的13部电机采用半包隔音罩和翘尾式阻性消音器消除电机噪音,A 声级由100分贝降为87.5分贝。在电机实际负荷(最
The first oil plant eliminated noise from the motor for 13 motors in an electric centrifugal pump house using a half-pack enclosure and a tail-stop resistive silencer, reducing the A-sound level from 100 to 87.5 dB. The actual load on the motor (most