振动和噪音的预防是安装过程中一个，
济南通风管道加工厂家认为安装过程中通风管道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 a key point in the installation process. Jinan ventilation pipe manufacturers believe that the prevention of vibration and noise of ventilation pipes during the installation process mainly starts 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。
① During fan installation, vibration damping devices shall be set according to design requirements or construction specifications.
②风机、通风管道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 The fans and ventilation pipes shall be connected by hoses. The hoses at the suction inlet of the fans shall be installed with proper tightness to avoid noise and vibration caused by loose flexible connections that reduce the area of air inlet and outlet.
③通风管道制作、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 fabrication, installation and connection of ventilation pipes with components shall be tight without air leakage to avoid air leakage noise.
④为防止通风管道振动，在每个系统通风管道的转弯处、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 ventilation duct, a fixed support shall be set at the turning of the ventilation duct of each system and the connection with the ventilator and the air outlet.
通风管道安装完毕，需进行漏风量测试，依据规范规定，通风管道的漏风量检测采用漏光法定性和漏风量测试定量检测相结合的方式，漏光法适合于中、低压系统的严密性检验；漏风量测试适合于中压系统的抽检和高压系统的悉数检测。
After the installation of the ventilation duct, the air leakage test shall be conducted. According to the specifications, the air leakage test of the ventilation duct shall adopt the method of combining the legal detection of light leakage and the quantitative detection of air leakage test. The light leakage method is suitable for the tightness inspection of the medium and low pressure systems; The air leakage test is suitable for sampling inspection of medium pressure system and full inspection of high pressure system.
漏光法检测是采用光线对小孔的强透视力，对系统通风管道严密程度进行定性检测的方法。其试验方法是在一定长度的通风管道上，在黑暗的环境下，在通风管道内用一个电压不高于36V、功率在100W以上的带保护罩的灯泡，从通风管道的一端缓缓移向另一端，试验时若在通风管道外能观察到光线，则说明通风管道有漏点，并对通风管道的漏风处进行修补。
The light leakage detection is a qualitative detection method of the tightness of the ventilation duct of the system by using the strong vision of light to the small hole. The test method is to use a bulb with a protective cover with a voltage not higher than 36V and a power of more than 100W in the ventilation duct on a certain length of ventilation duct and in a dark environment, and slowly move it from one end of the ventilation duct to the other end. If light can be observed outside the ventilation duct during the test, it means that there is a leak in the ventilation duct, and repair the air leak of the ventilation duct.
系统通风管道的漏光法检测采用分段检测、汇总分析的方法，被测系统的通风管道不允许有多处条缝形的明显漏光，低压系统通风管道每10米接缝，漏光点不超过2处，100米接缝平均不大于16处；中压系统通风管道每10接缝，漏光点不超过1处，100米接缝平均不大于8处为合格。
The method of sectional detection and summary analysis is adopted for the detection of light leakage of the ventilation pipes of the system. The ventilation pipes of the tested system are not allowed to have multiple obvious light leakage in the shape of slits. The light leakage points of the ventilation pipes of the low-pressure system are not more than 2 per 10m joint, and the average number of joints is not more than 16 per 100m; For every 10 joints of the ventilation pipe of the medium pressure system, the light leakage point is not more than 1, and the average joint of 100 meters is not more than 8.
This is the information about the prevention of vibration and noise during the installation of ventilation pipes. If you have any questions about this, please feel free to contact us http://www.jnqsg.com ！
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