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Industrial air conditioner-Freezer needs to pay attention to its refrigerant when using it. The refrigerant of different substances will produce different effects and reactions. What are the advantages and disadvantages of different refrigerants during operation? The following is a detailed analysis of Jincheng Industrial Air Conditioning on this issue. I hope it will be helpful to everyone.
A freezer is a kind of cooling equipment that can provide constant temperature, constant current, and constant pressure. Its working principle is that the refrigerant is first cooled at the evaporator to obtain the cooling capacity, and then is pumped to various places where the cooling capacity is needed. After absorbing heat, it is returned to the evaporator and then cooled, so as to cycle back and forth to achieve the purpose of continuous cooling. So, what are the commonly used freezer refrigerants? What are the advantages and disadvantages?
water
Advantages: It has large specific heat, low density, low corrosiveness to refrigerators and pipes, non-combustion, non-explosion, non-toxic, good chemical stability, and cheap and easy to obtain.
Disadvantages: It has a high freezing point and can only be used in refrigeration systems above 0 ° C.
Application range: Suitable for occasions with refrigeration temperature above 0 ℃.
brine
Advantages: salt is dissolved in water to support, it can reduce the freezing point temperature and make the load cooling range larger. The brine commonly used as a refrigerant is an aqueous solution of sodium chloride and an aqueous solution of calcium chloride, which are suitable for medium and low temperature refrigeration systems.
Disadvantages: Corrosive to refrigerators and pipes.
Applications: Can be used in salt water ice makers and indirect cooling refrigerators, or to cool bagged food.
Ethylene glycol and propylene glycol
Advantages: low freezing point, stable properties, miscibility with water, wide temperature range, cheap price, large heat capacity.
Disadvantages: The viscosity of the solution rises very quickly at low temperatures and is corrosive.
Application range: Usually use their aqueous solution as the refrigerant, the applicable temperature range is 0 ～ -50 ℃.
Dichloromethane and trichloroethylene
Advantages: their liquids are usually used as refrigerants, and the freezing point is low.
Disadvantages: high volatility, low boiling point, large loss, and corrosive.
Application range: usually use their liquid as the refrigerant, the applicable temperature range is -50 to -100 ° C.
Glacial Refrigerant
Advantages: low volatility, low viscosity, high specific heat, non-toxic, non-corrosive, safe and environmentally friendly.
Application: Suitable for food freezing and refrigerating industry.
In addition to the above commonly used refrigerants, methanol, ethanol, glycerol and other aqueous solutions can also be used as refrigerants, which generally depend on the customer's plant conditions. Taken as a whole, the advantage of using a refrigerant is that the refrigeration system of the refrigerator can be gathered in a small area, improving the cooling efficiency, and transmitting the cooling capacity to a distance.
The above mentioned are several kinds of refrigerants that we often take when using the freezer, and the analysis of specific advantages and disadvantages is very comprehensive.
Jiangsu Jincheng Air Conditioning Engineering Co., Ltd. focuses on:
Industrial air-conditioning, chemical fiber industrial air-conditioning, chemical fiber industrial refrigeration, textile industrial air-conditioning, clean room refrigeration, ventilation ducts, cooling towers, freezers and other air-conditioning units and accessories.
Jincheng can bring high-quality industrial air-conditioning products and satisfactory services to everyone.
You also want to know more product information, please contact: Mr. Song 13705113637 Website: http://www.pc20080808.cn/
