usually in accordance with the standards of refrigerant evaporation temperature, is divided into high, medium and low temperature. Evaporation temperature refers to the standard evaporation temperature under atmospheric pressure, also is the boiling point.
a low-pressure high-temperature refrigerant: evaporation temperature above 0 ℃, condensing pressure lower than that of 29. 41995×104Pa。 This kind of refrigerant applies to air conditioning system of centrifugal compressor.
in the medium voltage temperature refrigerant: evaporation temperature - 50 ~ 0 ℃, condensing pressure ( 196. 113-29. 41995). ×104Pa。 This kind of refrigerant is commonly used in ordinary single-stage compression and two-stage compression piston refrigeration system.
high pressure low temperature refrigerant: evaporation temperature is below - 50 ℃, the condensing pressure is higher than 196. 133×104Pa。 This kind of refrigerant is suitable for low temperature part of the complex overlapping refrigeration equipment or - under 70 ℃ low temperature device.
belongs to freon refrigerant R22 refrigerant also, a the methane of cl, chemical name is 2 fluorine chemical formula for CHF2Cl. Is temperature refrigerant in medium voltage, the boiling point temperature of - 40. 8 ℃, freezing point to - At 96 ℃, 160 ℃, critical temperature and critical pressure of 4. 974MPa 。 R22 burning explosion, toxicity is small, but understand ability is very strong, and leaks are difficult to find.
unit volume of R22 and ammonia refrigerants. R22 by two-stage compression refrigeration or air conditioning system, the effects of low temperature to - 80 ℃, but not the economy.
the temperature and pressure of refrigerant R22 table
the above introduction about R22 refrigerant over here, hope to be able to bring you some help, if you have a demand on refrigerant, welcome consultation discussion with us, we wholeheartedly at your service.
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