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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、卡箍連接：主要用于連接鋼板圓形通風管道和螺旋風管。首先，每個管段的兩端都繞成筋，一端小。安裝時，將口沿氣流方向插入，將兩端的帶子在外面用鋼箍擰緊，將耳環中間的螺栓固定并擰緊。這個過程需要注意，不應影響油管的正常使用。安裝過程中確保空氣管路緊密，以達到良好的效果。

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、插入式連接：主要用于矩形或圓形管道連接。制作好連接管后，從兩側插入管內，用鉚釘固定。這種固定方式的使用比較有限，但是安裝方式比較簡單易懂，可以節省一些施工時間，從而保證風管的正常使用。

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、插入式連接：主要用于矩形管連接。安裝通風管道時，可在管道兩端插入不同形狀的嵌件，使其緊湊。

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、軟管式連接：主要用于連接管道和零件(如散熱器、靜壓箱側送風口等)。安裝時，將軟管兩端插入連接管內，用專用軟卡固定軟管。獨特設計的過濾介質不僅具有良好的通風性能，而且提高了過濾面積的長使用壽命和除塵效率。

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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