The difference between the refrigerant r32 and r22

2019 - 08 - 19 now widely used in household air conditioner and heat pump refrigerant R22, it belongs to the ozone-depleting substances as. Current home air conditioning can replace R22 refrigerant, with R32 refrigerant R22, R32 today some simple difference comparative analysis of their properties. R22: will be eliminated refrigerant R22 chemical composition of chlorine methylene fluoride ( CHClF2) , no combustion, no explosion, toxicity is small, safe level belongs to the A1. R22 ozone-depleting QianZhi ODP> 0, so should not be use for a long time, our country to 2030 will be fully eliminated. R32: the chemical composition of future refrigerant competitors R32 for methylene fluoride CH2F2, toxicity is small, micro combustion, security level for A2L. R32 exist the possibility of explosion, the explosion limit of 14. 4% ~ 29. 3% [ 3] , in home air conditioning applications need to solve the problem of low flammability. R32 cooling performance with r410a close, under the condition of same refrigerating capacity, R32 filling amount to less than R410a ( About 30% less) , but the exhaust temperature is higher than R410a. R32 ODP = 0, GWP = 675, belongs to the green environmental protection refrigerants, is an important substitute for R22, currently in Europe and the United States, Japan and other countries of household air conditioning has a large number of applications.

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