采用高传热效能的锯齿形翅片管设计制造的4000大卡/时 R12冷凝器,比原旧式冷凝器节省铜材59%,体积缩小1/3,且制造工艺简化。新、旧冷凝器在试验台上进行实机性能对比试验,结果表明,新型冷凝器能满足设计要求,承受原冷凝器之热负荷,用作2F66型制冷机的配套辅机。 The 4000 kcal / hr R12 condenser, designed and manufactured with serrated finned tube with high heat transfer efficiency, saves 59% of the copper volume and 1/3 of the volume of the conventional condenser, simplifying the manufacturing process. The new and old condensers were compared on the test bench with the real machine performance test. The results show that the new condenser can meet the design requirements and withstand the heat load of the original condenser, which can be used as auxiliary equipment of 2F66 refrigerating machine.