Environmental protection refrigerant technology is of great help to environmental protection

< p > new refrigerant is in order to solve before use freon refrigerant in the harm to the atmosphere and adopt a new environmental protection refrigerant, does not contain fluorine no harm to the atmosphere, now commonly used with R410A, everything, R407C several. Now the main is r410a. R410A, is a kind of mixed refrigerant, it is by R32, Methylene fluoride) And R125 ( Five fluorine ethane) Consisting of a mixture, its advantage is that can be used according to the specific requirements, for a variety of properties, such as flammability, capacity, exhaust gas temperature and efficiency into consideration, tailored to synthesize a kind of refrigerant. R410A appearance not cloudy, colorless, volatile, boiling point - 51. 6 ℃, freezing point - 155℃; Its main features are: < / p > < p style = 'text - 缩进:2 em; > ( 1) Does not destroy the ozone layer. Its molecular formula does not contain chlorine, therefore its ozone depletion ozeme depletion potential ( ODP) To zero. Global warming ozeme depletion potential ( GWP) Less than zero. 2. < / p > < p =“文本-风格 缩进:2 em; > ( 2) Very low toxicity. Permissible concentration and R22, too, are 1000 PPM. < / p > < p =“文本-风格 缩进:2 em; > ( 3) Don't burn. The flammable in air polarity is 0. < / p > < p =“文本-风格 缩进:2 em; > ( 4) High chemical and thermal stability of < / p > < p style = 'text - 缩进:2 em; > ( 5) Water solubility and R22 is almost the same. < / p > < p =“文本-风格 缩进:2 em; > ( 6) Is mixed refrigerant, is composed of two kinds of refrigerants < / p > < p style = 'text - 缩进:2 em; > ( 7) Not with mineral oil or alkyl benzene oil miscibility. ( With POE [ Ester lubricants] ,通过 Ether lubricating oil] Miscibility) < / p > < p =“文本-风格 align:中心; ' > < / p >

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