What are the components of ventilation ducts?

There are common pipes everywhere in daily life, and it is not clear what to do. Fabric duct ventilation duct \ fabric duct ventilation duct looks simple, specifically, each rough-looking duct is composed of several different functions , Engineering buildings have the same variety of requirements for natural ventilation and 1. Ventilation ducts. In the exhaust system, the gas is conveyed or extracted through ventilation ducts. The cross section of the ventilation duct has annular and rectangular frames. In addition to connecting pipes, the ventilation pipes are composed of elbows, round-trip elbows, large and small elbows, tees, crosses and other pipes should be specifically composed of engineering projects. 2. Various air outlets. In order to better transport or exhaust gas into the room, various forms of positive pressure delivery ports or suction ports provided in the ventilation ducts adjust the amount of gas delivered or sucked out. There are many types of air outlets, the common ones are the rectangular frame air outlet with mesh structure and strip-shaped shank, and the linkage adjustment device is installed, and other types do not have linkage adjustment device. The air outlet is divided into single-sided, two-layer, three-layer and different types of diffusers. 3. Gate valve. Natural ventilation components installed on the ventilation ducts adjust the exhaust volume and close some risers. Common gate valves for natural ventilation and air conditioning equipment include gate valves, disc valves, multi-leaf control valves, circular opening valve start valves, suction valves for gas solution chambers, smoke exhaust fire dampers and check valves, etc. 4. Mufflers. Avoid noise transmission to room selected equipment. Inductive load microphones, resistance microphones, resonant microphones and broadband composite microphones are selected in air conditioning equipment. 5. Dust removal equipment. It is a mechanical equipment for purifying indoor air, which is generally divided into cyclone dust removal equipment, wet vacuum cleaners and bag vacuum cleaners. 6. Exhaust machine. It is the machine equipment that drives the gas flow in the exhaust system of the machine equipment. Exhaust fans are important mechanical equipment for natural ventilation and air conditioning units. According to the structural principle, they are divided into two types: axial flow fan exhaust fans and centrifugal fan exhaust fans. 7. Unpowered hood. Used at the end of a ventilation system, its effect is to remove outdoor polluting gases. According to its method, it is suitable for umbrella-shaped unpowered caps for general mechanical equipment ventilation systems, conical unpowered caps for dust removal equipment, and simple unpowered caps for natural ventilation systems.

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