qingdao zhongzhida environmental protection equipment co., ltd. melting
general manager: duan jinting
address: qingdao jiaozhou beiguan industrial park road in the reservoir 6
business hotline: 0532-82291116/13806420399
service hotline: 0532-82291117
fax: 0532-82291118
website: www.zhongzhida.cn, www.qdzhongzhida.com
e-mail: zzda@zhongzhida.cn
zip code: 266300
general manager: duan jinting
address: qingdao jiaozhou beiguan industrial park road in the reservoir 6
business hotline: 0532-82291116/13806420399
service hotline: 0532-82291117
fax: 0532-82291118
website: www.zhongzhida.cn, www.qdzhongzhida.com
e-mail: zzda@zhongzhida.cn
zip code: 266300
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analysis of requirements and performance of air duct insulat
the air duct insulation material should have good thermal stability, thermal conductivity in the range of 0.035~0.058w/(m·c), certain mechanical strength, low moisture absorption rate, no corrosion of metal surface, good flame retardancy, small weight and other characteristics.
air duct insulation materials should not be used for bulk materials, and the types of insulation boards are often used. commonly used insulation materials are rock wool board, ultra-fine glass wool (plate, coil), polystyrene foam board (flame retardant type), polyurethane foam board. inject the foam insulation layer directly into the air duct with polyester foam.
currently commonly used insulation properties:
(1) rock wool board: rock wool is artificial inorganic fiber. it uses basalt as the main raw material and is melted at high temperature. it is processed into thermal insulation board with adhesive, which has good flame retardant performance and good heat preservation and sound absorption performance. cheap, suitable for air duct insulation to transport high temperature gases.
(2) ultra-fine glass wool: using glass as the main raw material, high-temperature melting to make ultra-fine glass fiber, adding additional materials to make porous, lightweight insulation board, with small bulk density, flame retardant, low thermal conductivity, rich elastic, non-corrosive and irritating properties, it is not easy to break after molding, and it is easy to construct. according to the density of insulation needs, it can be divided into 25kg/m3, 32kg/m3, 48kg/m3, etc. it can also be made into various forms such as coiled material or aluminum foil moisture-proof layer. it is the most commonly used insulation and sound absorbing material in air-conditioning engineering.
(3) polyaminophenol foam plastic plate: the main raw material is polyether resin or polyester resin and catalyst, foam stabilizer, toluene diisocyanate, water, etc., mixed and stirred in a certain ratio, foaming and becoming a kind of opening porous foam plastic, rigid foam plastic board is used for insulation air duct (soft multi-purpose refrigeration pipeline cold insulation layer). it can also be foamed and shaped directly on the pipe, and the effect is better.
because of its good thermal insulation effect and easy operation, air ducts with special requirements can be used in the air duct, but the price is more expensive.
air duct insulation materials should not be used for bulk materials, and the types of insulation boards are often used. commonly used insulation materials are rock wool board, ultra-fine glass wool (plate, coil), polystyrene foam board (flame retardant type), polyurethane foam board. inject the foam insulation layer directly into the air duct with polyester foam.
currently commonly used insulation properties:
(1) rock wool board: rock wool is artificial inorganic fiber. it uses basalt as the main raw material and is melted at high temperature. it is processed into thermal insulation board with adhesive, which has good flame retardant performance and good heat preservation and sound absorption performance. cheap, suitable for air duct insulation to transport high temperature gases.
(2) ultra-fine glass wool: using glass as the main raw material, high-temperature melting to make ultra-fine glass fiber, adding additional materials to make porous, lightweight insulation board, with small bulk density, flame retardant, low thermal conductivity, rich elastic, non-corrosive and irritating properties, it is not easy to break after molding, and it is easy to construct. according to the density of insulation needs, it can be divided into 25kg/m3, 32kg/m3, 48kg/m3, etc. it can also be made into various forms such as coiled material or aluminum foil moisture-proof layer. it is the most commonly used insulation and sound absorbing material in air-conditioning engineering.
(3) polyaminophenol foam plastic plate: the main raw material is polyether resin or polyester resin and catalyst, foam stabilizer, toluene diisocyanate, water, etc., mixed and stirred in a certain ratio, foaming and becoming a kind of opening porous foam plastic, rigid foam plastic board is used for insulation air duct (soft multi-purpose refrigeration pipeline cold insulation layer). it can also be foamed and shaped directly on the pipe, and the effect is better.
because of its good thermal insulation effect and easy operation, air ducts with special requirements can be used in the air duct, but the price is more expensive.
