通风管道加固能够保证通风管道在实际应用中内部静压的稳定性，如果管壁道出现1%的挠度，则需要对通风管道展开加固处理。在实际通风管道加固的过程中，需要根据压力大小、尺寸大小选择相应的加固方式，加固方式的选择，对更终通风管道的使用寿命起到决定性作用，通常情况下，可以使用以下几种方式展开加固。
The reinforcement of ventilation duct can ensure the stability of internal static pressure in practical application. If the deflection of pipe wall is 1%, it is necessary to reinforce the ventilation duct. In the process of actual ventilation pipeline reinforcement, it is necessary to select the corresponding reinforcement method according to the pressure and size. The selection of reinforcement method plays a decisive role in the final service life of the ventilation pipeline. In general, the following methods can be used for reinforcement.
山东通风管道加工
Processing of ventilation pipe in Shandong Province
一、拉杆加固
1、 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 the positive pressure reinforcement should be carried out under 500pa.
二、框架加固法
2、 Frame reinforcement method
该种加固方式可以使用轻钢龙骨展开加固。
In this way, light steel keel can be used for expansion and reinforcement.
三、抱合加固法
3、 The method of locking reinforcement
其中使用的材料也是轻钢龙骨，通常应用在较为特殊的管道加固中，其中主要包括在900弯管道、三通管以及闷头管等。
The material used is light steel keel, which is usually used in special pipeline reinforcement, including 900 bend pipe, tee pipe and bulkhead pipe.
由此可以看出，在通风管道加固施工的过程中，需要根据管道的位置、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管道展开加固，其中主要包括迂回管道以及变经管道等，避免通风管道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 ventilation pipeline reinforcement construction, the reinforcement should be carried out according to the location of the pipeline and the actual use. In addition to this kind of reinforcement method, it can also be used to prevent the pipeline from sagging.
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