螺旋风管安装过程中振动和噪音的预防

Prevention of vibration and noise during installation of spiral duct

振动和噪音的预防是安装过程中一个重要环节，安装过程中螺旋风管的振动和噪音的预防主要从以下几个方面着手：

The prevention of vibration and noise is an important link in the installation process. The prevention of vibration and noise of spiral duct in the installation process is mainly from the following aspects:

① 风机安装时按设计要求或施工规范要求 设置减振装置。

When the fan is installed, the damping device should be set up according to the design requirements or construction specifications.

② 风机、螺旋风管相连接采用软管连接，风机吸入口处的软管安装要做到松紧适度，避免因软接过松减小进出风口面积，而引起噪声和振动。

(2) Hose connection is used for connecting fan and spiral air duct. The installation of hose at the suction port of fan should be flexible and moderate, so as to avoid noise and vibration caused by loosening the soft connection and reducing the area of inlet and outlet.

③ 螺旋风管制作、安装及与部件连接，连接严密，无漏风现象，以免产生漏风噪音。

(3) The spiral air duct is manufactured, installed and connected with the components, and is tightly connected without air leakage, so as to avoid air leakage noise.

④ 为防止螺旋风管振动，在每个系统螺旋风管的转弯处、与通风机和风口的连接处设固定支架。

(4) In order to prevent the vibration of the spiral duct, a fixed bracket is arranged at the bend of the spiral duct of each system and at the connection with the fan and the air outlet.