The ventilation duct is the duct connecting the fan and the external air. Its installation is very important and will affect the service efficiency of the fan. Therefore, during installation, it is necessary to ensure the complete connection between the fan and the pipe and between the pipe and the pipe, so as to ensure the normal use of the fan. Pay attention to fixing during connection to prevent problems affecting smoke exhaust during later use, So how should the air duct be connected when installing the air duct? How many ways? Let's take a specific look.

1、卡箍连接：主要用于连接钢板圆形通风管道和螺旋风管。，每个管段的两端都绕成筋，一端小。安装时，将口沿气流方向插入，将两端的带子在外面用钢箍拧紧，将耳环中间的螺栓固定并拧紧。这个过程需要注意，不应影响油管的正常使用。安装过程中确保空气管路紧密，以达到良好的效果。

1. Clamp connection: mainly used to connect steel plate circular ventilation duct and spiral air duct. First, both ends of each pipe section are wound into ribs, and one end is small. During installation, insert the mouth along the air flow direction, tighten the belts at both ends with steel hoops, and fix and tighten the bolts in the middle of the earrings. Attention shall be paid to this process, which shall not affect the normal use of oil pipe. During installation, ensure that the air pipeline is tight to achieve good results.

2、插入式连接：主要用于矩形或圆形管道连接。制作好连接管后，从两侧插入管内，用铆钉固定。这种固定方式的使用比较有限，但是安装方式比较简单易懂，可以节省一些施工时间，从而保证风管的正常使用。

2. Plug in connection: mainly used for rectangular or circular pipe connection. After making the connecting pipe, insert it into the pipe from both sides and fix it with rivets. The use of this fixed method is relatively limited, but the installation method is relatively simple and easy to understand, which can save some construction time and ensure the normal use of air duct.

3、插入式连接：主要用于矩形管连接。安装通风管道时，可在管道两端插入不同形状的嵌件，使其紧凑。

3. Plug in connection: mainly used for rectangular pipe connection. When installing the ventilation duct, insert inserts of different shapes at both ends of the duct to make it compact.

4、软管式连接：主要用于连接管道和零件(如散热器、静压箱侧送风口等)。安装时，将软管两端插入连接管内，用专用软卡固定软管。独特设计的过滤介质不仅具有良好的通风性能，而且提高了过滤面积的长使用寿命和除尘效率。

4. Hose connection: mainly used to connect pipes and parts (such as radiator, plenum side air supply outlet, etc.). During installation, insert both ends of the hose into the connecting pipe and fix the hose with a special soft clip. The uniquely designed filter medium not only has good ventilation performance, but also improves the long service life of the filter area and dust removal efficiency.

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