Installation of air ducts and components in dust-free workshops
Installation of air ducts and components in dust-free workshops
The finished air duct in the dust-free workshop is not allowed to have defects such as deformation, twisting, cracking, holes, flange falling off, flange welding, missing riveting, missing bolt holes, etc. The installed valve body, muffler, tuyere and other components should be Check whether the adjustment device is flexible, whether the muffler sheet and paint layer are damaged...
Text label: installation in clean room, installation in clean room, installation of air duct and components
Installation of air ducts and components in dust-free workshops
The finished air duct in the dust-free pharmaceutical cleanroom is not allowed to have defects such as deformation, twisting, cracking, holes, flange falling off, flange welding, missing riveting, missing bolt holes, etc. The installed valve body, muffler, tuyere and other components should be Check whether the adjustment device is flexible, and whether the muffler sheet and paint layer are damaged; the installation of the air supply and exhaust system and the air conditioning system should be completed after the construction of the building maintenance structure, the obstacles at the installation site have been cleared, and the ground is free of debris. The installation of the air cleaning system should be done on the ground of the installation site inside the building, the wall has been plastered, and there is no dust flying in the room, or there are dust-proof measures. It is carried out when the process equipment of the workshop is installed or the equipment foundation has been determined, and the orientation of the connecting pipe and cover of the equipment is known.
The cantilever of the bracket and the hanging iron of the hanger are made of angle steel or channel steel, the material of the diagonal support is angle steel, the hanging rod is made of round steel, and the flat iron is used to make the hoop; Correction of section steel, the correction methods are divided into two types: cold correction and hot correction. Small steel generally adopts cold correction, and larger steel needs to be heated to about 900 ℃ for hot correction. The order of correction should first correct the distortion and then correct the bending; The round steel of the boom should be appropriately intercepted according to the installation elevation of the air duct, the sleeve thread should not be too long, and the end of the thread should not exceed the lowest point of the pallet; for the bracket of stainless steel and aluminum plate air duct, the hoop should be treated with anti-corrosion and insulation according to the design requirements. Prevent electrochemical corrosion; when installing the riser pipe clamp, the top pipe fitting should be fixed first, and then use a wire hammer to hang the wire at the center, and the lower pipe clamp can be fixed according to the line; when the air duct is long, When it is necessary to install a row of brackets, you can install the two ends first, and then use the brackets at both ends as the benchmark to find the elevation of the middle bracket for installation; when the air duct is installed, when the pipeline is long, additional hangers should be installed at appropriate positions. The bracket should be prevented from swinging; the elevation of the support and hanger must be correct. For example, the diameter of the circular air duct changes from large to small. In order to ensure the level of the center line of the air duct, the surface elevation of the bracket steel should be relatively increased. For the air duct with slope requirements, the bracket The elevation of the air duct should also be installed according to the slope requirements of the air duct; the support and hanger shall not be installed at the tuyere, valve, inspection hole, etc., so as not to hinder the operation, and the hanger shall not be directly hung on the flange. Zhongjing Global Purification can provide consulting, planning, design, construction, installation, transformation and other supporting services for dust-free workshops and dust-free workshops.
The air duct installed in the dust-free workshop should ensure that the surface of the air duct is smooth and clean, and the outdoor air duct should have rain-proof measures; the system air duct whose construction is suspended should be closed at the opening of the air duct to prevent debris from entering; When extending into the structural air duct, the end of the steel mesh should be installed to prevent debris from entering the metal air duct when the system is running; it is strictly forbidden to use the installed air duct as a support and hanging bracket in the site with many cross operations. Weld or hang other supports and hangers on the air duct flanges and air duct supports and hangers; when transporting and installing stainless steel and aluminum plate air ducts, avoid scratching the surface and minimize contact with iron items during installation; When installing valve parts, structural and vane deformation due to collision should be avoided.
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