Insulation requirements for clean room plant equipment pipelines? -common problem
Insulation requirements for clean room plant equipment pipelines?
Insulation of refrigeration pipes in clean rooms can only be carried out after the installation and testing of water systems meet the requirements of the standard, and the anti-corrosion treatment is completed. Bubble and other methods; the mold has been installed...
Text label: clean room equipment, clean plant engineering pipeline, thermal insulation requirements
Clean room plant equipment piping insulation requirements?
Insulation of refrigeration pipes in clean rooms can only be carried out after the installation and testing of water systems meet the requirements of the standard, and the anti-corrosion treatment is completed. Temporary fixing facilities should be set up during the installation of the mold, the template should be flat, the joints should be tight, the size should be accurate, and the fulcrum should be stable, and the mold release agent should be painted in the mold. Lined with a layer of polyethylene film; the prepared two groups of solutions are stored in the barrels, filtered to the metering pump, run by the fan motor electric pump, the material is input into the material pipe to the perfusion mixer, and the compressed air Enter the perfusion motor, drive the stirring shaft to mix the two groups of materials, and then inject into the mold for foaming; the ingredients for the ingredients should be accurate, the raw material temperature and ambient temperature must comply with the product use regulations, and the stirring materials should rotate in one direction to mix. The material should be uniform, and the re-dosing must be used up within the specified time; the construction surface for pouring should be kept dry. When pouring a large area, a symmetrical multi-point gate should be set up, segmented and sliced, and the material should be poured evenly and sealed quickly, etc. Operate to control pour quality.
The equipment and pipes that should be insulated are: the suction pipe of the compression refrigerator, the liquid supply pipe between the evaporator and its expansion valve; the head of the evaporator and the main ejector of the steam jet refrigerator; lithium bromide absorption Generators, solution heat exchangers, evaporators and condensate pipes of refrigerators; heating pipes and condensate pipes of refrigeration equipment; cold water pipes and cold water tanks. The outer surface of the thermal insulation layer shall not produce condensed water; the outer surface of the thermal insulation layer shall be provided with a vapor barrier layer; the thermal insulation structure of the cold water pipeline can be composed of three parts: the thermal insulation layer, the moisture-proof layer and the protective layer; there are various construction methods for the thermal insulation layer, mainly There are rigid shell and tube material binding method thermal insulation, soft felt and plate binding method thermal insulation, semi-rigid shell and tube material binding method thermal insulation, plate bonding method thermal insulation, tube sleeve bonding method thermal insulation, etc. The soft felt material and the plate are bound for heat insulation. During construction, the insulation felt can be cut into 200-300mm wide strips and wound on the pipe in a spiral shape. Sometimes the method of flat wrapping can also be used. It is necessary to wrap, press and pull while wrapping. There should be no gaps in the longitudinal ring seam during wrapping. After wrapping the thermal insulation material, press the outside with steel mesh, and then fasten it with 14-16 galvanized steel wire. Zhongjing Global Purification can provide consulting, planning, design, construction, installation, transformation and other supporting services for clean rooms and clean workshops.
The joints of the thermal insulation material of the board bonding method should face the bottom or the side, and the joints of the exposed risers should face the back. When using multi-layer board insulation, the joints of the adjacent layers should be staggered. When the pipe fittings such as valves, reducing pipes and flanges are insulated, they should be pasted step by step after being processed and formed by sheet metal. In order to prevent the outdoor insulating air ducts and refrigeration ducts from being corroded by the atmosphere, rainwater leaking, or the insulating layer being damaged by external forces, a protective layer should be provided outside the pipes; if the indoor air ducts are made of loose soft materials, such as ultra-fine glass wool felt, etc., It is also necessary to set a protective layer outside the thermal insulation layer. The function of the protective layer is to protect the thermal insulation layer and the moisture-proof layer. Check whether the thermal insulation layer is damaged, whether the material joints are tightly treated, and whether the surface is smooth.
This is an global standard which acts as a form of promise that SUZHOU PHARMA MACHINERY CO.,LTD. manufatures according to the finest quality standards.
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