CAJ | 학술논문

由吸气管与毛细管热交换形成的回热器对小型制冷装置的制冷性能有着重要影响。目前，回热器主要有以下四种类型：毛细管外穿式、铝箔覆盖式、铜锡焊式、毛细管内穿式。结合理论分析，实验研究了制冷装置采用不同类型回热器时毛细管进出口温度、吸气管进出口温度、蒸发器温度以及压缩机吸排气温度对其工作性能的影响。结果表明，从换热性能上看，毛细管内穿式回热器与铜锡焊式回热器的性能基本相同，从制冷装置总体制冷性能上看，毛细管内穿式回热器优于铜锡焊式，且比毛细管外穿式及铝箔覆盖式回热器同等条件下单位容积制冷量提高17.4％，采用毛细管内穿式回热器有利于提高系统的制冷性能。
유흡기관여모세관열교환형성적회열기대소형제랭장치적제랭성능유착중요영향。목전，회열기주요유이하사충류형：모세관외천식、려박복개식、동석한식、모세관내천식。결합이론분석，실험연구료제랭장치채용불동류형회열기시모세관진출구온도、흡기관진출구온도、증발기온도이급압축궤흡배기온도대기공작성능적영향。결과표명，종환열성능상간，모세관내천식회열기여동석한식회열기적성능기본상동，종제랭장치총체제랭성능상간，모세관내천식회열기우우동석한식，차비모세관외천식급려박복개식회열기동등조건하단위용적제랭량제고17.4％，채용모세관내천식회열기유리우제고계통적제랭성능。
Heat regenerator formed by capillary and suction pipe has an important influence on the performance of small refrigeration e-quipment. At present, there are four main types of regenerator: capillary wear type, aluminum foil cover type, copper and tin welding type, capillary inside pipe type. Combining with theoretical analysis, the refrigeration performance of regenerator was experimentally stud-ied by capillary inlet and outlet temperature, suction pipe inlet and outlet temperature, evaporator temperature and discharge temperature of compressor suction. The results show that, wear inside the capillary regenerator and copper tin welding type regenerator have the same performance in heat transfer performance. However, the refrigerating capacity per unit of swept volume of capillary inside pipe type regen-erator was 17. 4% higher than that of capillary wear type and aluminum foil cover type regenerator under the same conditions. The per-formance of refrigerator can be improved by using capillary inside pipe type regenerator.