Detailed explanation of commonly used insulation materials for air conditioning and solar energy systems
Both air conditioning and solar energy systems require the use of insulation materials to reduce heat loss, improve energy efficiency, and prevent condensation and other issues. The following is a detailed analysis of the commonly used insulation materials, their characteristics, and application scenarios in two types of systems.
Common insulation materials for air conditioning systems
The air conditioning system mainly uses the following insulation materials:
Rubber and plastic insulation material (NBR/PVC closed cell foam)
Features: Excellent moisture resistance, long-lasting insulation efficiency (thermal conductivity 0.034w/mk), and convenient construction
Application: Widely used for insulation of air conditioning refrigerant copper pipes and drainage pipes, especially suitable for environments sensitive to temperature and humidity
Advantages: Good anti vibration characteristics, able to reduce pipeline vibration; Excellent flame retardant performance (B1 level flame retardant material); Easy installation and beautiful appearance
Polyurethane foam
Features: Low heat loss, strong compression resistance, waterproof and anti-corrosion
Application: Mainly used for air conditioning chilled water pipes and air handling unit (AHU) panels
Advantages: Compared with traditional trench laying, it has a long service life, simple construction, and low cost
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Phenolic foam
Characteristics: High temperature resistance, good flame retardancy
Application: Suitable for air conditioning system scenarios with high temperature or fire prevention requirements
Advantages: Multiple use of thermosetting resin technology, good stability
Glass wool (aluminum foil ultra-fine glass wool felt)
Features: Density 48kg/m 3, with aluminum foil moisture-proof layer
Application: Suitable for insulation of air conditioning supply ducts
Advantages: Stable insulation performance, good moisture-proof effect
Common insulation materials for solar energy systems
The commonly used insulation materials for solar energy systems (especially hot water systems) include:
Polyurethane foam insulation layer
Features: Closed cell structure, excellent insulation performance
Application: Used in conjunction with aluminum-plastic composite pipes in solar hot water engineering
Advantage: Good compatibility with water tank material (galvanized steel plate or stainless steel)
Rock wool/mineral wool
Characteristics: High operating temperature, but limited insulation performance (thermal conductivity 0.045 W/(m.k))
Application: Insulation for flat solar collectors
Limitation: Performance degradation when temperature exceeds 70 ℃
Polystyrene
Characteristic: Good insulation performance
Application: Insulation for flat solar collectors
Limitation: Shrinkage occurs when the temperature exceeds 70 ℃, and it needs to be used in conjunction with rock wool/mineral wool
Ceramic fiber products
Characteristics: Excellent high temperature resistance
Application: Concentrated heat collection system and heat exchange system for solar thermal power generation system
Advantage: Expected to become the preferred insulation material for solar thermal power plants
Aluminum silicate board/magnesium silicate board/aerogel
Characteristics: Good high-temperature stability
Application: Thermal storage device and steam turbine power generation device for solar thermal power generation system
Advantage: Stable performance in extreme temperature environments
Insulation materials shared between air conditioning and solar energy systems
Rubber insulation pipe
Characteristics: The closed cell structure has good insulation performance, low water absorption rate, and is suitable for temperatures ranging from -50 ℃ to 120 ℃
Application: Anti freezing sleeve for solar water heater water pipes, insulation for air conditioning copper pipes
Advantages: Overall molding, fast construction, green and environmentally friendly
Aluminum skin rubber plastic glass wool insulation material
Characteristics: Composite structure (outer aluminum skin+middle rubber foam+inner glass wool)
Application: Composite insulation requirements for air conditioning and solar energy systems
Advantage: Fully leverage the material advantages of each layer to form an efficient insulation system
Insulation pipe winding tape (aluminum foil fiberglass material)
Characteristics: High reflectivity aluminum foil layer combined with weather resistant fiberglass substrate
Application: Outer layer protection for air conditioning unit ducts and solar energy ducts
Advantages: Thermal insulation, sun protection, UV aging resistance, and extended service life of pipelines
Key factors in selecting insulation materials
Thermal conductivity: the main indicator for measuring insulation performance, the smaller the thermal conductivity, the better the insulation performance
Temperature range for use: The temperature resistance of different materials varies greatly, and the selection should be based on the operating temperature of the system
Moisture resistance: Closed cell structural materials have better moisture resistance and can reduce the need for additional moisture-proof layers
Construction convenience: Flexible materials such as rubber and plastic are more convenient to install, suitable for complex pipeline systems
Environmental protection and flame retardancy: B1 level flame retardant materials are safer, and low smoke density materials are more environmentally friendly
Suggested application scenarios
Air conditioning system:
Refrigerant pipeline: prioritize the use of rubber insulation materials
Chilled water pipeline: polyurethane foam has better effect
Duct system: Glass wool (with aluminum foil) is an ideal choice
Solar energy system:
Hot water pipeline: polyurethane foam insulation layer or rubber insulation pipe
Thermal insulation of collector: composite use of rock wool and polystyrene
Solar thermal power generation system: Ceramic fiber products are the preferred choice for high temperature environments
Shared scenario:
Outdoor pipeline: Aluminum foil fiberglass insulation pipe wrapped with tape
Large temperature difference environment: composite aluminum skin rubber plastic glass wool insulation material
Choosing suitable insulation materials requires comprehensive consideration of factors such as system operating temperature, environmental conditions, budget, and construction requirements. For special application scenarios, it is recommended to consult professional insulation material suppliers for customized solutions.
Shandong Huaneng Insulation Materials Co., Ltd. is a pipeline insulation manufacturer in Linyi. As an integrated insulation and decoration manufacturer in Shandong, our main products include integrated insulation and decoration, pipeline insulation, exterior wall insulation materials, extruded polystyrene board, thermosetting polystyrene board, and rubber insulation. If you need it, you can contact us by phone.
Tel: 400-013-5133
Tel: 0539-8520111 15753903111
E-mail: huanengbw@126.com
Address: Linyi National High tech Zone New Materials Park
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