Refrigerant also known as refrigerant, in some areas of the south commonly known as snow species. It is a working substance that is constantly circulating in the refrigeration system and changes in its own state to achieve refrigeration. The refrigerant absorbs the heat of the cooling medium (water or air, etc.) in the evaporator and condenses the heat in the condenser to the ambient air or water. such as ammonia and water, lithium bromide (molecular formula: LiBr.) White cubic crystalline or granular powder, extremely soluble in water, and water, and so on; Steam jet chillers are used as refrigerants.
The contents of the 2012-2017 Refrigerant industry competition Health survey and profitability model consulting report completed by Connaught United States, at present, there are three factors in the increase of refrigerant price: firstly, the State promotes the fluorite as a strategic resource, and implements the protective development of it; Secondly, the consumption of air-conditioning (including automotive air-conditioning) increases the demand for refrigerant, and finally there is the factor of financial speculation. There is also an international factor in the increase in the price of refrigerant, under the Montreal Protocol, the low-end refrigerant (such as R22) of developed countries in 2010 has been basically shut down, the developed countries no longer use R22 as refrigerant, but R22 as the main raw material for the downstream fluorine polymer, the demand for R22 remains. As developing countries have to wait until 2030, it is also a boon for refrigerant producers in developing countries, as the R22 completely eliminated. At least the current supply and demand gap of R22, which also means that the refrigerant industry boom lasts for at least two years.
At present, the air-conditioning industry in China using more refrigerant is HCFC material R22. The basic physical properties of R290 and R22 are very close to the standard boiling points, solidification Point, critical point and so on, with the basic conditions of substitution R22. In saturated liquid, the density of R290 is smaller than R22, so the R290 perfusion of the same volume is smaller, and the experiment proves that R290 perfusion in the same system volume is about 43%% of R22. In addition, because of the R290 vaporization latent heat is about twice times R22, so the refrigerant circulating volume of the refrigeration system is smaller by R290. R290 has good material compatibility and is compatible with copper, steel, cast iron, lubricating oil and so on. In the future, China will further increase the use of R290 refrigerant air-conditioning production line renovation demonstration pilot efforts. With the continuous deepening of the application of R290 technology and the accumulation of experience, the future of environmentally friendly refrigerant R290 will have a wide market application foreground.
