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There will be various problems in the installation of ventilation pipes. Here are some common problems and solutions for reference:

1.風(fēng)管系統(tǒng)采用組合式法蘭連接時(shí)，容易出現(xiàn)接口漏風(fēng)問題，可以對風(fēng)管咬口縫、無法蘭插條接縫處及孔洞縫隙處進(jìn)行用密封膏處理；法蘭墊料需要采用不透氣、彈性好、不易老化的連接材料，厚度3～5mm，寬度大于10mm。

1. when the air duct system adopts the combined flange connection, it is easy to have the problem of air leakage at the interface. The air duct seaming joint, the joint without flange insert and the hole gap can be treated with sealing paste; The flange gasket shall be made of airtight, elastic and aging resistant connecting materials, with a thickness of 3 ~ 5mm and a width of more than 10mm.

2.如果是磚結(jié)構(gòu)風(fēng)道與金屬風(fēng)管連接處不嚴(yán)密，施工時(shí)按要求在連接處設(shè)置預(yù)埋件，或要求土建單位進(jìn)行堵封，確保連接嚴(yán)密。

2. if the connection between the brick structure air duct and the metal air duct is not tight, the embedded parts shall be set at the connection as required during construction, or the civil engineering unit shall be required to block and seal to ensure the tight connection.

3.柔性短管、矩形短管安裝時(shí)產(chǎn)生扭曲；安裝時(shí)注意短管四角平直，松緊適度，高度一致，同一角度應(yīng)在同一垂線或直線上。長度值為150～250mm之間，接縫處用嚴(yán)密和牢固。

3. the flexible short pipe and rectangular short pipe are twisted during installation; During installation, the four corners of the short pipe shall be straight, with appropriate tightness and consistent height. The same angle shall be on the same vertical line or straight line. The length is 150 ~ 250mm, and the joint is tight and firm.

4.設(shè)備連接的回風(fēng)口噪聲大；解決這一問題，主要從風(fēng)口材料和風(fēng)口固定兩個(gè)方面進(jìn)行，選擇符合標(biāo)準(zhǔn)要求的材料，加強(qiáng)驗(yàn)收，安裝需加強(qiáng)與土建配合。

4. the return air outlet connected to the equipment is noisy; To solve this problem, it is mainly carried out from two aspects: tuyere material and tuyere fixation. Select materials that meet the standard requirements, strengthen the acceptance, and strengthen the cooperation with the civil engineering discipline for installation.

5.管道焊接未很好熔合；可以選用稍大的電流，放慢焊速，并調(diào)整電弧角度，同時(shí)注意對焊接夾渣的防治

5. pipeline welding is not well fused; A slightly larger current can be used to slow down the welding speed, adjust the arc angle, and pay attention to the prevention of welding slag inclusion

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