Air conditioning and refrigeration, expert team, butler service, no worries
Equipment manufacturing, system design and installation, equipment operation management housekeeper service, refrigeration technology (Freon direct expansion, full liquid supply, ammonia, fluorine, carbon dioxide cascade, etc.), technical training
Air conditioning and refrigeration, expert team, butler service, no worries
Equipment manufacturing, system design and installation, equipment operation management housekeeper service, refrigeration technology (Freon direct expansion, full liquid supply, ammonia, fluorine, carbon dioxide cascade, etc.), technical training
How is the price of cold storage calculated?
2022-12-05
1. Cost of refrigeration equipment
1. Compressor unit
The power of the compressor determines its power consumption; at the same time, since different compressors have different models and specifications, choosing different models of compressors will also affect the price. (Note) Currently, there are three main types of air conditioning compressors commonly used on the market - screw type, scroll type and centrifugal type. Among them, screw units are widely used in small air conditioning systems due to their low noise and stable and reliable operation.
2. Cooling system accessories such as condenser/evaporator
Different types of heat sinks or heat exchange fins are used for cooling according to the selected cold water temperature. It should also be noted that for commercial refrigerators, multi-stage throttling devices need to be used to process water circulation to achieve energy saving effects. In addition, attention should be paid to the tightness of the system to prevent air from entering and affecting the cooling efficiency and extending the service life.
3. Expansion valve
The expansion valve is a valve that controls the flow of liquid and adjusts the direction of liquid flow. Normally, expansion valves have two modes: manual control and automatic control for users to choose from.
4. Capillary tube
The process used to transport high pressure, normal temperature and low pressure liquid gas to low temperature liquefied gas is called gasification. When resistance is encountered during the gasification process, the pressure will drop and negative pressure will occur, resulting in a reduction in vacuum degree. In order to maintain a certain air pressure, it is necessary to transmit the medium through pipelines, so capillary tubes appeared.
5. Filter dryer
Mainly used to remove moisture from the air to protect electronic components from humid air.
2. Cost of insulation materials
1. Extruded polyurethane rigid foam plastic is a closed-cell structure, high-performance and environmentally friendly foaming product made from high-functional PU resin as the basic raw material and mixed with other raw and auxiliary materials and polymer additives. . It has the advantages of good moisture-proof and waterproof performance, low thermal conductivity, no molten droplets and no harmful substances when burned. It is widely used in thermal insulation, sound insulation, sound absorption, noise reduction, decoration, decoration, purification and dehumidification of buildings' roofs, walls, floors, ceilings, composite interlayers, etc.
2. Rock wool products Rock wool is an artificial inorganic fiber made from deep processing of mineral fiber-like amorphous silicate rocks. It has good chemical stability, thermal stability and high mechanical strength, and will not be affected by corrosion, nor will it be bitten by insects, rats, or aged or deteriorated.
3. Glass wool Glass wool is a glass fiber product made of glass balls made of quartz sand melted at high temperature and then specially made.
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