What should be paid attention to during the sealing and reinforcement of high-temperature air ducts?

by:Haikuo     2021-06-07
High temperature resistant air ducts are widely used for exhaust air supply, dust exhaust and smoke removal. The ventilation pipe is made of plastic rubber bone wrapped with steel wire as the skeleton, and orange plastic mesh cloth is used as the pipe body. There is a metal ring every one meter at the pipe body, which can conveniently fix the air pipe. The product can be stretched, bent, and connected freely. Lightweight, high temperature resistance, abrasion resistance, pressure resistance, acid and alkali resistance, flame retardant, and insulation. Coordinated ventilation equipment is widely used for air supply, exhaust, and dust collection in harsh working environments such as computer rooms, basements, tunnels, municipal pipeline engineering, underground cable maintenance, mechanical shipbuilding engineering, fire rescue smoke exhaust, and so on. It is also an indispensable choice for portable exhaust fans! So 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.
Custom message
Chat Online 编辑模式下无法使用
Chat Online inputting...