1. Construction preparation (1), operating conditions 1. The installation of the air-conditioning system should be carried out under the conditions that the building envelope construction is completed, the obstacles have been cleared, and the ground is free of sundries. 2. The installation of the air duct of the purification system should be done on the ground where the components are installed inside the building, the wall has been plastered, and there is no dust flying or dust-proof measures in the room. 3. Check the location and size of the reserved holes at the site should meet the requirements of the drawings. 4. There must be corresponding auxiliary facilities at the operating site, such as ladders, shelves, safety protection, fire-fighting equipment, and the technology, quality and safety of the construction workers. (2) Material requirements 1. All kinds of installation materials should have factory qualification certificates or quality appraisal documents and product lists. 2. The finished air duct is not allowed to have defects such as deformation, twisting, cracking, holes, falling flanges, missing riveting, and missing bolt holes. , Whether the paint layer is damaged. 4. Materials used for installation: bolts, nuts, washers, gaskets, sealing strips, self-tapping screws, rivets, welding rods, various canvases, non-woven fabrics, shooting nails, and expansion bolts should meet product quality requirements. (u003d) Tools Hand hammers, electric hammers, hand electric drills, grinders, bench drills, electric welding tools, wrenches, screwdrivers, hand scissors, ladders, etc. 2. Quality requirements (1) Main control items (1) When the air duct passes through the fireproof and explosion-proof wall or floor that needs to be closed, a pre-buried pipe or protective casing should be installed, and the thickness of the steel plate should not be less than 1.6mm. Between the air duct and the protective casing, a non-combustible and non-hazardous flexible material should be used to block it. (2) The installation of air ducts must comply with the following requirements: 1) It is strictly forbidden for other pipelines to cross in the air duct; 2) The air duct system that transports flammable and explosive gases or is installed in flammable and explosive environments should be well grounded. The living area or other auxiliary production rooms must be tightly closed, and no interface shall be set; (3) The fixed cable of the outdoor riser is strictly prohibited to be pulled on the lightning rod or lightning protection net. (4) The installation of air duct components must comply with the following requirements: 1) The installation of various air duct components and operating mechanisms should ensure their normal use functions and facilitate operation; 2) Check air valves, automatic exhaust valves The installation direction should be correct. (5) When the manual airtight valve is installed, the direction of the arrow on the valve must be the same as the direction of the air flow in the air duct. (6) The installation of the air duct of the purification air-conditioning system should also meet the following requirements: 1) The air duct, static pressure box and other components must be wiped clean, so as to be free of oil and dust. When the construction is stopped or completed, the port should be sealed. ;2) The flange gasket should be a material that does not produce dust, is not easy to age, and has a certain strength and elasticity. The thickness is 5~8mm, and latex sponge should not be used; the flange gasket should be spliced u200bu200bas much as possible, and the ring should allow straight seam butt It is strictly forbidden to apply paint on the surface of the litter; 3) When the air duct passes through the clean room ceiling, partition wall and other enclosure structures, the joints should be tight. -- air duct
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