Clean room air duct system engineering
Clean room air duct system engineering
The specification, size and form of the tuyere in the clean room should meet the design requirements, the surface should be flat and free of deformation, the self-adjusting part should be flexible, free from jamming and loose, and the tuyere sprayed on the surface should be uniform in color, no color difference, and no scratches on the surface Marks; when the duct cannot be flanged, use flange inserts and elastic...
Text label: clean room air duct system, clean room engineering, clean room system
Clean room air duct system engineering
The specification, size and form of the air outlet of the clean room should meet the design requirements, the surface should be smooth and free of deformation, the self-adjusting part should be flexible, free from jamming and loosening, and the air outlet sprayed on the surface should be uniform in color, no color difference, and no scratches on the surface When the air duct cannot be flanged, the specification, thickness and strength of flange inserts and spring clips should meet the design and use requirements; when the air valve, flexible short pipe, air cap and muffler are flanged, the flange The size should match the duct flange size. Before making the air duct support and hanger, the section steel should be corrected first. There are usually two kinds of correction methods: cold correction and hot correction. Small steel generally adopts cold correction. The sequence is to correct the distortion first, and then correct the bending; the bolt holes and cuts of the bracket and hanger should be machined, and electric welding is not allowed to be cut. The appearance is neat and beautiful, and it is necessary to ensure the welding and penetration, and there must be no defects such as under-welding, missing welding, cracks, bites, etc.; The length of the exposed nut at the lower end of the boom should not be too long.
The connection of the air duct interface should be firm and tight, the gasket material of the air duct flange should meet the requirements of the system function, the thickness should not be less than 3mm, the gasket should not protrude into the pipe, nor protrude outside the flange; the flexibility is short The installation of the pipe should be moderately tight and not twisted; the plug connection of the air duct and the brick and concrete air ducts should follow the direction of the airflow, the insertion end of the air duct should be flush with the surface of the air duct, and should be sealed; the connection of the air duct should be complete There is no defect, the two planes connecting the air duct should be straight, and there should be no obvious distortion; the gaps around the socket-type air duct should be consistent, without obvious bending or folds, the sealant applied on the inside should be complete, and the sealant tape on the outside should be firmly pasted , complete; the air duct in the form of thin steel plate flange is intercepted, and the interval between elastic inserts, spring clips or fastening bolts should not be greater than 150mm, and the distribution should be uniform without loosening; the surface-mounted air duct is installed horizontally, and the level deviation is 3 ‰, the total deviation should not be greater than 20mm, the exposed air duct is installed vertically, the vertical deviation is 2‰, and the total piece output should not be greater than 20mm; the position of the concealed air duct should be correct without obvious deviation; the installation of the spiral air duct should be For blue connection, the circular air duct installed on the bracket should be provided with a bracket; when the air supply branch pipe and the main pipe are connected vertically, the air guide adjustment device should be installed at the interface. Zhongjing Global Purification can provide consulting, planning, design, construction, installation, renovation and other supporting services for clean rooms and clean rooms.
The sealing material of the air duct connection should meet the functional technical conditions of the system, have no adverse effect on the material of the air duct, and have good air tightness. The joints should be as few as possible, the joints should be stepped or tongue-and-groove, and the joints should be coated with sealant; the thickness of the flange gasket should be 3.5mm; when conveying air with a temperature lower than 70°C, rubber sheets and closed-cell sponge rubber sheets can be used. , sealing tape or other closed-cell elastic materials; acid-resistant rubber sheets or soft polyvinyl chloride sheets should be used to transport gases containing corrosive media; flange gaskets for purifying air ducts of air-conditioning systems should be non-generated, not easy to age, and have a certain Materials of strength and elasticity; non-metallic air ducts are connected by PVC or aluminum alloy insert flanges, and the four corners or air leakage gaps should be sealed.
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