风管主要是指空调系统的通风管道,它常常被忽视但它却是空调系统的重要组成部分，那么，我们在安装风管时会遇到哪些常见问题呢?比如风管安装的不平不直等问题，下面
山东通风管道厂家对其进行分析。
Air duct mainly refers to the ventilation duct of the central air conditioning system, which is often ignored but is an important part of the air conditioning system. What common problems will we encounter when installing air duct? For example, the installation of air duct is not straight. The following is the analysis of Shandong ventilation duct manufacturer.
1、风管安装的不平，不直
1. The air duct is installed unevenly and not straight
影响：使偏移，法兰的接口间距不均匀，漏风量过大，外形不美观。
Influence: the center is offset, the flange interface spacing is uneven, the air leakage is too large, and the appearance is not beautiful.
原因：支架，吊架预留的位置和标高不一致，间距不等，风管受力不均而产生扭曲或弯曲，矩形风管的平整度及法兰对角线长超差，法兰与风管轴线不垂直，法兰互换性，平整度差，螺栓间距大，螺母拧的松紧度不一致。
Cause: The reserved position and elevation of the support and hanger are inconsistent, the spacing is different, the air duct is distorted or bent due to uneven stress, the flatness of the rectangular air duct and the length of the flange diagonal are out of tolerance, the flange is not perpendicular to the central axis of the air duct, the flange interchangeability, the flatness is poor, the bolt spacing is large, and the tightness of the nut is inconsistent.
2、风管安装的方法不妥
2. Improper installation method of air duct
影响：风管摆动，支架间距不等，保温风管出现冷桥，降低风管的使用寿命，不美观，冷热量损失加大。
Impact: the air duct swings, the bracket spacing is not equal, the insulation air duct has a cold bridge, which reduces the service life of the air duct, is not beautiful, and the loss of cold and heat is increased.
原因：整个风管无固定点，吊杆直接吊在风管的法兰上，保温的矩形风管直接和托架，吊杆接触风管安装中的问题与形成原因。
Cause: The whole air duct has no fixed point, the suspender is directly hung on the flange of the air duct, the insulated rectangular air duct is directly connected with the bracket, and the suspender contacts the problems and causes in the installation of the air duct.
3、风管的密封垫片安装及风管，管件等的连接不符合要求
3. The installation of sealing gasket of air duct and the connection of air duct and pipe fittings do not meet the requirements
影响：将出现法兰连接处跑风漏气，噪声变大，冷热量损耗变大。
Impact: there will be air leakage at the flange connection, the noise will increase, and the cooling and heat loss will increase.
原因：法兰垫片材质不符合要求，法兰垫片厚度不够，因而影响弹性及紧固程度，法兰垫片凸入风管内，法兰周边的螺栓松紧程度不一致。
Cause: The material of flange gasket does not meet the requirements, and the thickness of flange gasket is not enough, which affects the elasticity and tightness. The flange gasket protrudes into the air duct, and the tightness of bolts around the flange is inconsistent.
4、穿越屋面的风管无防雨和稳固措施
4. The air duct crossing the roof has no rain-proof and stability measures
影响：风管与屋面穿越处漏水，渗水，风管穿越屋面处不稳固，下雨后雨水易漏入，渗入房内，室外风力较大时，风管不稳固也易损坏屋面。
Impact: water leakage and seepage at the crossing between the air duct and the roof. The air duct crossing the roof is unstable. Rainwater is easy to leak into the room after rain. When the outdoor wind is strong, the air duct is unstable and easy to damage the roof.
原因：风管与屋面无防雨罩，风管穿越屋面后无拉索或支架固定风管安装中的问题与形成原因。
Cause: There is no rain cover between the air duct and the roof, and there is no cable or bracket to fix the air duct after the air duct passes through the roof.
The knowledge of air duct installation will be introduced here. You should be careful in the construction process. If you want to know more about decoration, you can pay attention to our website http://www.jntfgd.com ！
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