Construction elements clean the air conditioning system
2016-09-05 16:16:49
With the application of clean room, clean air conditioning use has become increasingly widespread, the level of cleanliness is also improving. Many clean air through careful design, careful construction, have been successful, but some clean air conditioning system after the completion of design and construction due to reach the cleanliness requirements downgrade, or even scrapped converted general air conditioning. Technical requirements for clean air conditioning systems, construction of high quality requirements, investment, once the failure, regardless of cause waste from the financial, material and human terms would therefore do well to clean air conditioning systems, in addition to the perfect design drawings, but also require high quality a high level of construction.
1, the production of duct material is essential to ensure the cleanliness of the air conditioning
Material selection. Clean air-conditioning duct system is generally made of galvanized sheet metal working. Should use high-quality galvanized steel plate, galvanized layer standard should be> 314g / m2, and should be uniform coating, since no shell, no oxidation. Hanger, reinforced frame, bolts, washers, duct flanges, rivets should be galvanized, flange gasket should be flexible, not produce dust, there is a certain strength of soft rubber or latex foam, duct the bulk density of external insulation may be 32K or more flame retardant PE boards to special glue stick, not use glass wool fiber products.
Note also that the physical examination material specifications, material finish, you should also check the flatness of the plate, the corners of the square, the degree of cohesion and other zinc coating. After the purchase of materials during transport should also keep intact packaging, moisture-proof, anti-collision, anti-pollution.
Materials custody. Clean air material should set up a dedicated warehouse, or centralized storage. Repository should be clean, no pollution, avoid moisture, especially air valve, the outlet, muffler and other components should be stored tightly packaged. Clean air material warehouse to shorten storage time should be used with the purchase. Production of wind workable whole plate should be transported to the site, to avoid contamination of parts caused during transportation.
2, the better off the wind pipe production, in order to ensure system cleanliness.
2.1 Preparation before duct production.
Manufacture clean duct system should be in relatively sealed indoors. Interior walls should be smooth, not produce dust, no dust, laying the ground thicker plastic flooring, floor and wall junction is appropriate tape seal affixed, to avoid dust generation. Former duct processing, interior must be done clean, clean, clean. It can be cleaned with a vacuum cleaner cleaned after repeated cleaning. Wind must make effective tools with alcohol or non-corrosive detergent cleaned after entering the production room. Production Equipment produced neither possible nor necessary to enter the room, but must be kept clean and free of dust. Workers who wish to participate in the production of relatively fixed, entry into the production premises must wear disposable dust caps, gloves, masks, overalls should be washed often. After the production of materials should be two to three alcoholic or non-corrosive cleaner to scrub, to enter the stand-making places.
2.2 Clean duct system production points.
After processing semi-finished products should be scrubbed again into the next process. Duct flange flange plane processing to ensure smooth, specifications must be accurate, and duct match, to ensure that when a combination of duct connection interface sealing. Duct bottom transverse seams may not have, and try to avoid longitudinal seams, size large duct should be to make the entire board to minimize ribs, stiffeners also must be located not use beading strengthening ribs inside the duct.
Duct production should be adopted joint-angle or corner seams, more than six clean air duct may not use snap seams. Seams at the zinc coating is damaged, the zinc coating rivet hole and flange welds must make do damage to corrosion. Duct flange joints and cracks in the rivet hole four weeks should be coated with silicone seal. Duct flange must be flat uniform. Flange width and rivet holes, screw flange must be in strict accordance with regulatory requirements. Short flexible pipe must be smooth wall, generally use leather or plastic, duct inspection door gasket use soft rubber.
3, clean air pipe handling, installation is key to ensuring cleanliness.
3.1 Preparation before installation. Clean air conditioning system must be developed according to schedule clean room main construction program before installation, planning must be coordinated with other professionals, and should be strictly implemented as planned. Clean air-conditioning system installed in the building must first be professional (including floors, walls, floors) paint, sound absorption, and other aspects of the raised floor after completion. Before installing the indoor complete duct positioned lifting points and installation work, and when hanging points installed damaged wall surfaces, floors were up painting process.
3.2 indoor cleaning, will be transported into the duct system. Duct handling process should be noted that the head protection air duct into the surface of the site should be cleaned before work.
3.3 staff members installed subject to air shower, wearing clean clothes, masks, shoe covers before construction. Tools, materials, components to be alcohol wipe, wipes check before entering the construction site to meet the requirements.
3.4 Duct fittings, connecting parts should open side head side connection, so that no oil inside the duct, flange gasket should not aging resilient strength of the material and may not be straight seam stitching. After installing the open end of the need to remain sealed state.
3.5 duct insulation should be installed in the system piping and leakage detection qualified conducted after the completion of interior insulation must be completely clean.
4, carefully ordered test to ensure a clean air conditioning system debugging success.
4.1 Clean air conditioning system must be air-conditioned room, air conditioning, engine room after the installation is complete cleanup, clean, all-independent object must be clear, and carefully check the air-conditioned rooms and room walls, roof, floor paint is broken and completion, carefully check filtration system equipment for the air outlet end of the system can be installed directly (cleanliness level system can be installed above ISO6 high efficiency filter), carefully check the electrical, automatic control system, power supply system, after each test can be carried out to confirm system integrity.
4.2 develop detailed test plans, test arrangements for staff to participate, to prepare the necessary workers, a measuring tool.
4.3 test must be carried out in a unified organization, unified command. The process of commissioning a new air filter replaced every two hours, the terminal is equipped with HEPA filters should be regularly replaced, cleaned, usually 4 hours. Commissioning must be continuous, can understand the operation of the air-conditioned rooms, equipment room of the data from the automatic control system, and the implementation of adjustment by the automatic control system. Clean air test run time must comply with GB50243-2002 specification prescribed time.
4.4 After the test run, the system can be tested after a stable indicators. The tests include wind (wind speed), static pressure difference between the air filter leaks, clean indoor air levels of indoor planktonic bacteria and bacteria settlement, air temperature and humidity, indoor air manifold, interior noise and other indexes can also be designed in accordance with cleanliness grade or rank in the state agreed acceptance requirements.
In short, to ensure the success of clean air conditioning system construction, should grasp the following principles:
1. strictly better off purchasing the material, the better the process of checking off dust.
2. The establishment of the system to ensure clean air conditioning construction.
3. Strengthen the technical and educational quality of construction workers.
4. Preparation of an ample supply of whole variety of tools equipment.
1, the production of duct material is essential to ensure the cleanliness of the air conditioning
Material selection. Clean air-conditioning duct system is generally made of galvanized sheet metal working. Should use high-quality galvanized steel plate, galvanized layer standard should be> 314g / m2, and should be uniform coating, since no shell, no oxidation. Hanger, reinforced frame, bolts, washers, duct flanges, rivets should be galvanized, flange gasket should be flexible, not produce dust, there is a certain strength of soft rubber or latex foam, duct the bulk density of external insulation may be 32K or more flame retardant PE boards to special glue stick, not use glass wool fiber products.
Note also that the physical examination material specifications, material finish, you should also check the flatness of the plate, the corners of the square, the degree of cohesion and other zinc coating. After the purchase of materials during transport should also keep intact packaging, moisture-proof, anti-collision, anti-pollution.
Materials custody. Clean air material should set up a dedicated warehouse, or centralized storage. Repository should be clean, no pollution, avoid moisture, especially air valve, the outlet, muffler and other components should be stored tightly packaged. Clean air material warehouse to shorten storage time should be used with the purchase. Production of wind workable whole plate should be transported to the site, to avoid contamination of parts caused during transportation.
2, the better off the wind pipe production, in order to ensure system cleanliness.
2.1 Preparation before duct production.
Manufacture clean duct system should be in relatively sealed indoors. Interior walls should be smooth, not produce dust, no dust, laying the ground thicker plastic flooring, floor and wall junction is appropriate tape seal affixed, to avoid dust generation. Former duct processing, interior must be done clean, clean, clean. It can be cleaned with a vacuum cleaner cleaned after repeated cleaning. Wind must make effective tools with alcohol or non-corrosive detergent cleaned after entering the production room. Production Equipment produced neither possible nor necessary to enter the room, but must be kept clean and free of dust. Workers who wish to participate in the production of relatively fixed, entry into the production premises must wear disposable dust caps, gloves, masks, overalls should be washed often. After the production of materials should be two to three alcoholic or non-corrosive cleaner to scrub, to enter the stand-making places.
2.2 Clean duct system production points.
After processing semi-finished products should be scrubbed again into the next process. Duct flange flange plane processing to ensure smooth, specifications must be accurate, and duct match, to ensure that when a combination of duct connection interface sealing. Duct bottom transverse seams may not have, and try to avoid longitudinal seams, size large duct should be to make the entire board to minimize ribs, stiffeners also must be located not use beading strengthening ribs inside the duct.
Duct production should be adopted joint-angle or corner seams, more than six clean air duct may not use snap seams. Seams at the zinc coating is damaged, the zinc coating rivet hole and flange welds must make do damage to corrosion. Duct flange joints and cracks in the rivet hole four weeks should be coated with silicone seal. Duct flange must be flat uniform. Flange width and rivet holes, screw flange must be in strict accordance with regulatory requirements. Short flexible pipe must be smooth wall, generally use leather or plastic, duct inspection door gasket use soft rubber.
3, clean air pipe handling, installation is key to ensuring cleanliness.
3.1 Preparation before installation. Clean air conditioning system must be developed according to schedule clean room main construction program before installation, planning must be coordinated with other professionals, and should be strictly implemented as planned. Clean air-conditioning system installed in the building must first be professional (including floors, walls, floors) paint, sound absorption, and other aspects of the raised floor after completion. Before installing the indoor complete duct positioned lifting points and installation work, and when hanging points installed damaged wall surfaces, floors were up painting process.
3.2 indoor cleaning, will be transported into the duct system. Duct handling process should be noted that the head protection air duct into the surface of the site should be cleaned before work.
3.3 staff members installed subject to air shower, wearing clean clothes, masks, shoe covers before construction. Tools, materials, components to be alcohol wipe, wipes check before entering the construction site to meet the requirements.
3.4 Duct fittings, connecting parts should open side head side connection, so that no oil inside the duct, flange gasket should not aging resilient strength of the material and may not be straight seam stitching. After installing the open end of the need to remain sealed state.
3.5 duct insulation should be installed in the system piping and leakage detection qualified conducted after the completion of interior insulation must be completely clean.
4, carefully ordered test to ensure a clean air conditioning system debugging success.
4.1 Clean air conditioning system must be air-conditioned room, air conditioning, engine room after the installation is complete cleanup, clean, all-independent object must be clear, and carefully check the air-conditioned rooms and room walls, roof, floor paint is broken and completion, carefully check filtration system equipment for the air outlet end of the system can be installed directly (cleanliness level system can be installed above ISO6 high efficiency filter), carefully check the electrical, automatic control system, power supply system, after each test can be carried out to confirm system integrity.
4.2 develop detailed test plans, test arrangements for staff to participate, to prepare the necessary workers, a measuring tool.
4.3 test must be carried out in a unified organization, unified command. The process of commissioning a new air filter replaced every two hours, the terminal is equipped with HEPA filters should be regularly replaced, cleaned, usually 4 hours. Commissioning must be continuous, can understand the operation of the air-conditioned rooms, equipment room of the data from the automatic control system, and the implementation of adjustment by the automatic control system. Clean air test run time must comply with GB50243-2002 specification prescribed time.
4.4 After the test run, the system can be tested after a stable indicators. The tests include wind (wind speed), static pressure difference between the air filter leaks, clean indoor air levels of indoor planktonic bacteria and bacteria settlement, air temperature and humidity, indoor air manifold, interior noise and other indexes can also be designed in accordance with cleanliness grade or rank in the state agreed acceptance requirements.
In short, to ensure the success of clean air conditioning system construction, should grasp the following principles:
1. strictly better off purchasing the material, the better the process of checking off dust.
2. The establishment of the system to ensure clean air conditioning construction.
3. Strengthen the technical and educational quality of construction workers.
4. Preparation of an ample supply of whole variety of tools equipment.
