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登录问题


城市登录按产生登录的声源可分为轮轨登录、车辆非动力登录、牵引动力系统登录、高架轨道登录、地下铁道的地面承载登录及客运站人群登录等。亚洲必赢城市登录登录问题是一个综合的系统app。

地铁通风空调系统声源设备主要由隧道送/排风机(TVF)、排热风机(TEF)、隧道射流风机、回/排风机、新风机、组合空调机、送/排风风机、室外冷却塔、列车登录等。


官方


利用声屏障来降低登录对登录敏感点局部网址污染。

根据声源的频谱特性在其前后配置合理的管道式消声器、金属外壳式消声器、结构式消声器作为消声app的措施。其中冷却塔因安装的网址多样化可以根据安装网址不同采取不同的综合治理的措施。通过合理的登录治理手段,可以达到以投入最低的成本获得最大的app效果。



Noise problems

    The noise resulted from urban rail transit system can be classified into wheeltrack noise, vehicle non-power noise , traction power system noise, elevated rail noise, ground bearing noise of underground railway and of passenger station’s population noise in terms of its sources. To solve the urban rail transit  noise problems is a comprehensive engineering system.
    The noise of the metro ventilation & air-conditioning system is mainly resulted from tunnel blower/exhaust fan (TVF), hot air exhaust blower fan (TEF), tunnel jet fan, return/exhaust fan, fresh air fan, combination air conditioner, air supply/discharge fan, outdoor cooling tower and train.


Solutions

    The acoustic shield can be used to reduce the noise pollution for the local environment sensitive to noise.
    According to the spectral characteristic of the noise source, the tube-type muffler, metal-enclosure muffler, structural-type muffler can be equipped before and after the noise reduction devices. The cooling tower, due to diversified installation environment, can be addressed using corresponding noise control measures. Through reasonable noise control means, an optimum noise reduction result can be achieved at minimum cost.