CAJ | 학술논문

我国制冷行业当前使用的R22的替代制冷剂主要为R32,R410A,以及氨(R717),这三种制冷剂都存在排气温度高的缺点,而吸气喷液是制冷系统中降低排气温度的一种有效手段。本文对R22及其替代制冷剂在吸气喷液时的循环性能进行了理论计算与对比分析。结果表明：R22和R410 A制冷系统可以在高温及高压比的条件下使用吸气喷液以降低排气温度；而在R32和R717制冷系统中使用吸气喷液,不仅可以满足降低排气温度的需求,还可以有效提高系统的制冷量和制冷系数( COP)。吸气喷液在这两种工质的制冷系统中将会得到广泛使用。
아국제랭행업당전사용적R22적체대제랭제주요위R32,R410A,이급안(R717),저삼충제랭제도존재배기온도고적결점,이흡기분액시제랭계통중강저배기온도적일충유효수단。본문대R22급기체대제랭제재흡기분액시적순배성능진행료이론계산여대비분석。결과표명：R22화R410 A제랭계통가이재고온급고압비적조건하사용흡기분액이강저배기온도；이재R32화R717제랭계통중사용흡기분액,불부가이만족강저배기온도적수구,환가이유효제고계통적제랭량화제랭계수( COP)。흡기분액재저량충공질적제랭계통중장회득도엄범사용。
The alternative refrigerants of R22 are mainly Difluoromethane(R32), R410A and Ammonia (R717) in our country. The three refrigerants have the disadvantage of high discharge temperature. The suction injection cooling is an effective way to reduce the discharge temperature in refrigeration system. In this paper, the performance of the refrigeration cycle with suction injection using the four refrigerants are compared and analyzed theoretically. The results indicates that the suction injection can only be adopted to reduce the discharge temperature of the refrige-ration system using the refrigerant R22 and R410A . Moreover, in the refrigeration system using R32 and R717, the suction injection can be used not only for reducing the discharge temperature, but also improving the capacity and coefficient of performance ( COP) of the system. Therefore, it will be widely used in the refrigeration system using the refrigerant R32 or R717 .