优乐娱乐官网

      With the development of modern industry, the environment pollution with produce, also is a kind of environmental pollution, noise pollution has become a major threat to human. Noise pollution and water pollution, air pollution, solid waste pollution is considered the world within the scope of the four major environmental problems.
      In order to prevent noise, China's famous acoustician maa dah-you has summarized and studied the existing at home and abroad and all kinds of noise hazards and standard, put forward three Suggestions:
      (1) In order to protect people's hearing and health, the permissible value in the 75 to 90 decibels of noise.
      (2) to protect the conversations and communications, the allowed values ​​of the ambient noise in the 45 to 60 decibels.
      (3) proposed for the sleep time in the 35 to 50 decibels.
石化管线的消音降噪
Petrochemical pipeline silencer noise reduction
      However, petrochemical pipe factory, built in the actual changes due to pipe bending, material flow to change much, even with phase change, volume mutation process, such as gas pipelines, in particular, the noise will be bigger, lead to far more than 90 db noise inside the plant, which cause serious damage to workers' hearing and physical health.According to the special working condition of the noise problem, the company put forward the suitable for petrochemical pipeline noise reduction plan and construction applications in more than one factory(patent authorized), but will live from 114 db has dropped below 90 db noise, meet the requirements of national standard.
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