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