What should be paid attention to during the sealing and reinforcement of high-temperature air ducts?
The sealing part of the duct in the construction of high temperature resistant duct.
Under normal circumstances, the recommended sealing tapes for energy-saving, sound-absorbing and high-temperature air duct systems are: heat-sensitive tape and pressure-sensitive tape. During construction, it should be noted that before the duct of the air duct is sealed with tape, a special buckle-shaped binding pin should be used to fix the overlap joint of the pipe. The spacing of the binding pins is 50mm. When stapling, the stapling needle should be slightly angled to the seam. Stapling pins are only used to fix the overlapping interface with a flap. If there is no flap or a flat interface, the adhesive tape should be used for fixing. The maximum size of the adhesive tape is 300 mm, at least one on each side.
The reinforcement link of the duct in the construction of high temperature resistant duct.
When the static pressure load inside the high temperature resistant air duct system causes a 1% deflection of the glass fiber high temperature resistant air duct wall, it is necessary to reinforce the high temperature resistant air duct. Generally, the piping of high temperature resistant air duct system can be reinforced by the following methods:
(1) Anti-sagging reinforcement method, it is used for the reinforcement of special pipelines, such as the reinforcement of the diversion pipeline and the winding pipeline.
(2) Tie rod reinforcement method, which uses steel color and casing reinforcement, usually under 500Pa positive pressure reinforcement.
(3) Frame reinforcement method, that is, the use of light steel keel reinforcement.
(4) Enclosed reinforcement method, which uses light steel keel reinforcement, and is used on some special pipes where tie rod reinforcement and frame reinforcement cannot be applied. The sealing and reinforcement of the air pipe should pay attention to the details of the construction process.