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  • 噪声防治的方法
  • 本站编辑:杭州瑞茂环保技术有限公司发布日期:2019-06-10 06:48 浏览次数:
我国心理学界认为,控制噪音环境,除了考虑人的因素之外,还须兼顾经济和技术上的可行性。充分的,必须考虑噪音源、传音途径、受音者所组成的整个系统。控制噪音的措施可以针对上述三个部分或其中任何一个部分。噪音控制的内容包括:
①在声源处控制。降低声源噪音,工业、交通运输业可以选用低噪音的生产设备和改进生产工艺,或者改变噪音源的运动方式(如用阻尼、等措施降低固体发声体的振动)。
②在噪声传播途中控制。在传音途径上降低噪音(在传播过程中)控制噪音的传播,改变已经发出的噪音传播途径,如采用吸音、隔音、音屏障、隔振、多栽树等措施,以及合理规划城市和建筑布局等。
③在人耳处减弱噪声。受音者或受音器官的噪音防护,在声源和传播途径上无法采取措施,或采取的声学措施仍不能达到预期效果时,就需要对受音者或受音器官采取防护措施,如长期职业性噪音暴露的工人可以戴耳塞 、或头盔等。

在技术上虽然现在已经成熟,但由于现代工业、交通运输业规模很大,要采取噪音控制的企业和场所为数甚多,因此在防止噪音问题上,必须从技术、经济和效果等方面进行综合权衡。当然,具体问题应当具体分析。在控制室外、设计室、车间或职工长期工作的地方,噪音的强度要低;库房或少有人去车间或空旷地方,噪音稍高一些也是可以的。总之,对待不同时间、不同地点、不同性质与不同持续时间的噪音,应有一定的区别

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Our country psychology academic circles thinks, control noise environment, besides consider human factor, also must take into account the economic and technical feasibility. Adequate noise control must take into account the entire system of noise sources, transmission pathways, and receivers. Noise control measures can be aimed at the above three parts or any one of them. Noise control includes:
Control at the sound source。 To reduce acoustic noise, the industrial and transportation industries can use low-noise production equipment and improve the production process, or change the movement of noise sources(such as using damping, vibration isolation and other measures to reduce the vibration of solid acoustic bodies)。
2 Control in the course of noise propagation. To reduce noise(during the transmission process) in the sound transmission route to control the transmission of noise and change the noise transmission channels already emitted by the sound source, such as adopting measures such as sound absorption, sound insulation, sound barrier, vibration isolation, and multiple planting of trees, And planning the layout of cities and buildings.
The noise is attenuated in the human ear. Noise protection of the recipient or organ requires protection of the recipient or organ when measures can not be taken in terms of sound source and transmission route, or when acoustic measures taken can not achieve the desired effect. Workers with long-term occupational noise exposure may wear earmuffs, earmuffs or helmets.
Although noise control is now technically mature, due to the large scale of modern industry and transportation, there are a large number of enterprises and places that need to adopt noise control. Therefore, in terms of noise prevention, A comprehensive trade-off must be made in terms of technology, economy and effectiveness. Of course, specific issues should be specifically analysed. (b) Low noise intensity in areas that control outdoor, design, workshop or long-term work of employees; Stores or few people go to the workshop or open space. A little more noise is also possible. In short, there should be a certain difference in the treatment of noise at different times, different locations, different properties, and different duration.




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