Noise problem
Petroleum & Petrochemical enterprises have wide noise sources, including the airflow noise caused by the sudden gas pressure change of such as compressed air, high-pressure steam discharged, heating furnace, catalysis “three-machine” room; the mechanical noise caused by mechanical friction, vibration, collision and high-speed rotation of such as ball grinding mill, air hammer, petroleum pump, crusher, and mechanical transmission belt; as well as the electromagnetic noise resulted from the vibration of electric device , such as transformer, caused by alternating magnetic field and impulse.
The noise pollution of petroleum & petrochemical enterprise is rather extensive and durable. On one hand, the complicated production technology makes noise source more extensive and influential; on the other hand, as long as the sound source does not cease, its outcome will not end and workers may be heavily annoyed and influenced by it; therefore, most of the noise produced from the production sequence in petroleum & petrochemical enterprises is of high-strength steady-state mixed noise. |
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