【 Weak current College 】 clean air conditioning system for the construction of a few key points about---Power By 【 China power house network 】

With the application of the clean room, clean air conditioning use has become more and more widely, cleanliness grades are improving. Many clean air conditioning through careful design, careful construction, success, but also a clean air conditioning system design and construction is completed by the cleanliness requirements and degraded, or even scrap for general air conditioning. Clean air conditioning system technical requirements, high construction quality requirements, investment, once the failure, in terms of financial, physical, human, are wasted, so you want to do a clean air conditioning system, in addition to the perfect design drawings, also called high-quality, high standard of construction. This article by clean air conditioning engineering construction, will introduce some experience to everyone, for Exchange.

1, windpipe of materials is to ensure that the basic conditions for air cleanliness
Material selection. Clean air conditioning duct generally use galvanized processing. Galvanized steel should select high-quality plate, zinc coated standard to > 314g/m2 and coated evenly, no shell, no oxidation. Hanger, reinforcement of the box, connecting bolt, Wah, wind pipe flanges, rivet should adopt galvanized fittings, flanges bedding should be flexible, not produce dust, a certain strength of soft rubber or latex sponge, duct insulation can be bulk density 32K more resistant PE sheet, to the special adhesive for pasting, you may not use glass wool and fiber products.
Physical checks you should be aware of material specifications, materials, finishes, sheet you should also check flatness, corner angle square degree, zinc coating of the adhesive etc. Material procurement transport process should also pay attention to maintain good packaging, moisture-proof, impact, pollution prevention.
Material whatsoever. Clean air conditioning material shall be established a private warehouse, or storing. Repository to be clean, no pollution, avoid wet, particularly air valve, inlet silencer, etc should be tight packaging resides. Clean air conditioning of materials to reduce warehouse storage time, ad purchase. Production of wind pipe plates should be transported to the whole site, avoid KD handling pollution caused by the way.
2 the good wind pipe production gateway, can guarantee system cleanliness.
2.1 duct production preparation before.
Processing manufacture air duct cleaning system should be in the relatively closed room. Indoor walls should be smooth, does not produce dust, dust, the ground floor can be laid thick plastic, floor and wall used in conjunction with the Department of adhesive tape seal affixed to prevent dust. Air ducts before processing, the Interior must be clean, dust-free, pollution-free. You can clean wipe clean with a vacuum cleaner after repeatedly. Production of wind pipe tools must be used alcohol or non-corrosive detergent cleaning clean after making indoor. Production equipment cannot and does not need to enter the production of indoor, but must be kept clean, dust-free. Participation in the production of workers should be relatively fixed, access to the production site must wear disposable dust cap, gloves, masks, overalls should always wash. Produced with materials should be two to three time the alcoholic or non-corrosive cleaning agents after cleaning, to enter the production site ready.
2.2 clean system wind pipe production points.
Processed semi-finished products should be scrubbed again after entering the next procedure. Duct flange processing to ensure the smooth, flat flanges to exact specifications, and wind pipes match to ensure air duct portfolio connection interface good sealing. Duct bottom may not have horizontal seams, and avoid large longitudinal seam, the specification of duct should try to complete board production, minimize rebar, must be reinforced by and do not use a grooving to enhance and strengthen the tendons in the air duct.
Wind pipe production should adopt joint angle or angles bite, six more clean air ducts may not use the restorative bite. Pittsburgh Department galvanized layer is damaged, rivet hole and the flange welding zinc coating damage of corrosion must make do. Wind pipe joint flange crack and rivet hole around should be coated with silicone seal. Duct flange must be flat and even. Flange width and rivet hole flange bolts must strictly follow the specifications called for. Flex pipe must be smooth inner wall, generally choose leather or plastic, wind pipe inspection door gasket material with soft rubber.
3. clean air duct removal, installation is critical to ensure cleanliness.
3.1 before install of prepare. Clean air conditioning system installation must be in accordance with clean room construction program development plan, the plan must be coordinated with other professional and should be implemented in strict accordance with the plan. Clean air conditioning system installed you must first be in building professional (including floors, walls, floors) paint, sound absorption, elevated floor, finished. Installation in indoor complete wind pipes positioning, lifting point installation, and lifting point installation damaged wall surface, floor for refinishing.
3.2 room cleaning, air duct into the system. Wind pipe handling of head protection, air ducts before entering the site should work surface clean.
3.3 staff participated in the installation by blowing rain, wear clean clothes, masks, shoes before construction. Use of tools, materials, parts, to alcohol, dust-free paper checks, meet the requirements before entering the construction site.
3.4 duct fittings, parts connection should edge open head edge connection, the wind tube do no grease, flange gasket material should be anti-aging elastic strength of materials, and not straight seam stitching. Opening Terminal after installation must remain sealed State.
3.5 duct insulation should be installed in the system of pipes and air leakage inspection after completion of the insulation must be thoroughly cleaned the room clean.
4. carefully ordered test, ensure clean air conditioning system once debugging is successful.
4.1 clean air conditioning system after installation must be on air conditioning rooms, air-conditioned room with clean, clean, all unrelated objects must clear all, and carefully check the air conditioning room and computer room of wall, ceiling, floors of the paint is damaged and complete the check device filtering system, ventilation system can be directly installed air outlet (cleanliness ISO6 above system can install filters), carefully check electrical, automatic control system, power supply system, confirm that the system intact before the test.
4.2 develop detailed test plans to attend the test personnel, prepare the necessary workers, and measuring tools.
4.3 test must be in unity, unified command. Try running outdoor air filter 2Hours time, equipped with a HEPA filter should be replaced at the end of timing, cleaning, General 4 hours. Test run must be continuous operation can be carried out, from the automatic control system for the air conditioning room, equipment room of various data, and through automatic control system implementation of the regulation. Clean air conditioning test run time must conform to the specification GB50243-2002 period.
4.4 after commissioning, the system achieves stable will conduct a test of various indicators. Test content including air (wind speed), static differential pressure, air filter leakage, indoor, outdoor and indoor air cleaning level and the planktonic bacteria bacteria, air temperature and the settlement of humidity and indoor air manifold, indoor noise and other indicators may also be classified in accordance with the design of cleanliness or the agreed acceptance of State level.
In short to ensure clean air conditioning system construction success, should take the following principles: 1. a tight control on the materials procurement, keep the good process clean check off. 2. establishment of the system, ensuring clean air conditioning construction. 3. strengthening the construction personnel of technical and quality education. 4. the preparation of all the various tools on hand.