当室内或周围环境对设备产生的噪声有严格要求时，除对离心式风机进行减振降噪声处理，还应做消声、隔声处理。

When the indoor or surrounding environment has strict requirements on the noise generated by the equipment, in addition to the vibration reduction and noise reduction treatment for the centrifugal fan, the noise elimination and sound insulation treatment should also be carried out.

陕西离心式风机厂家对离心式风机多采用隔音箱处理，离心式风机隔音箱根据风机的类型和大小，做出各种形状的罩体。它是由多块标准或非标准的隔声板拼接而成，也可做成整体罩式。罩体留出风机进出风口和检修门，其他部位全部封闭。为了排除电机运转时散出的热量在罩体顶部安装排气管。

Shaanxi centrifugal fan manufacturers mostly use sound insulation box for centrifugal fans. According to the type and size of fans, the sound insulation box of centrifugal fans makes various shapes of covers. The utility model is composed of a plurality of standard or non-standard sound insulation boards, which can also be made into an integral cover type. The fan inlet and outlet and access door are reserved in the cover, and other parts are closed. In order to eliminate the heat released during the operation of the motor, an exhaust pipe is installed on the top of the cover.

离心式风机隔音箱可采用钢制和阻燃型玻璃钢制成。

Centrifugal fan sound insulation box can be made of steel and flame retardant FRP.

钢制隔音板的构造，主要是采用内吸外隔的方法，作用原理是当风机运转产生的振动波和气流高速运动产生的声波通过穿孔板、玻璃丝布逐渐被超细玻璃棉板的微小孔隙吸收，而镀锌外板又可起阻止未被完全吸收的声波传出罩体外和保护封闭的作用。

The structure of the steel sound insulation board mainly adopts the method of internal absorption and external isolation. The working principle is that the vibration wave generated by the fan operation and the sound wave generated by the high-speed movement of the air flow are gradually absorbed by the micro pores of the ultra-fine glass wool board through the perforated plate and the glass fiber cloth, and the galvanized outer plate can prevent the sound wave that is not completely absorbed from going out of the enclosure and protect the enclosure.

离心式风机隔音方法：

Centrifugal fan sound insulation method:

1、先降低离心式风机出风口噪声,在离心式风机时进、出气口管道上安装消声器。

1. Firstly, the noise at the outlet of the centrifugal fan is reduced, and a muffler is installed on the inlet and outlet pipes of the centrifugal fan.

2、离心式风机机组加装隔声罩,解决离心式风机机壳、电动机、基础振动等部位辐射的噪声源。

2. The centrifugal fan unit is equipped with sound insulation cover to solve the noise source radiated by the centrifugal fan casing, motor, foundation vibration and other parts.

3、把离心式风机机组封闭在离心式风机房内使其噪声传不出去，密封的离心式风机房上要安装进气口消声器以供离心式风机吸气和电动机、机壳等散热之需要。

3. The centrifugal fan unit is enclosed in the centrifugal fan room so that the noise can not be transmitted. The air inlet muffler should be installed on the sealed centrifugal fan room for the suction of the centrifugal fan and the heat dissipation of the motor and housing.

离心式风机是依靠输入的机械能，提高气体压力并排送气体的机械，它是一种从动的流体机械。离心式风机广泛用于工厂、矿井、隧道、冷却塔、车辆、船舶和建筑物的通风、排尘和冷却;锅炉和工业炉窑的通风和引风等。

Centrifugal fan is a kind of driven fluid machinery, which depends on the input mechanical energy to improve the gas pressure and discharge gas. Centrifugal fans are widely used in factories, mines, tunnels, cooling towers, vehicles, ships and buildings for ventilation, dust removal and cooling; Ventilation and induced draft of boilers and industrial furnaces.

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The above is the content of "silencing treatment of centrifugal fan" introduced by Shaanxi centrifugal fan manufacturer. Thank you for reading. I hope the above content can help you. If you want to know more wonderful content, please click our official website: http://www.sdyqtc.com .

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