The reinforcement of ventilation pipe can ensure the stability of internal static pressure of the ventilation pipe in practical application. If the pipe wall has 1% deflection, the reinforcement of the ventilation pipe is needed. In the actual process of strengthening the ventilation pipe, it is necessary to select the corresponding reinforcement methods according to the pressure and size. The selection of reinforcement methods plays a decisive role in the service life of the final ventilation pipe. Generally, the following methods can be used to carry out the reinforcement.

种、拉杆加固

First, tie rod reinforcement

在此过程中需要使用钢彩、套管等材料展开加固，需要在500pa以下对其展开正压加固。

In this process, steel color, casing and other materials need to be used for reinforcement, and positive pressure reinforcement should be carried out under 500 PA.

第二种、框架加固法

Second, frame reinforcement method

该种加固方式可以使用轻钢龙骨展开加固。

The light steel keel can be used for reinforcement.

第三种、抱合加固法

The third one is consolidation method

其中使用的材料也是轻钢龙骨，通常应用在较为特殊的蜜桃APP下载网站加固中，其中主要包括在900弯蜜桃APP下载网站、三通管以及闷头管等。

The material used is also light steel keel, which is usually used in more special pipe reinforcement, including 900 bend pipe, tee pipe and bulkhead pipe.

由此可以看出，在通风蜜桃APP下载网站加固施工的过程中，需要根据蜜桃APP下载网站的位置、实际使用情况等方面内容展开加固。除此之外，还可以采用防下垂加固法，这种方式主要对特殊蜜桃APP下载网站展开加固，其中主要包括迂回蜜桃APP下载网站以及变经蜜桃APP下载网站等，避免通风蜜桃APP下载网站在实际应用过程中出现位移以及下垂等情况。

It can be seen that in the process of strengthening construction of ventilation pipe, reinforcement should be carried out according to the locations of the pipe, the actual use and other aspects. In addition, anti sagging reinforcement method can also be used, which is mainly used to reinforce special pipelines, including detour pipelines and transition pipelines, so as to avoid displacement and sagging of ventilation pipelines in the actual application process.