制冷并联机组系统冬季易出现冷凝压力过低,弱化冷凝器的传热以减小冷凝器的换热量,即能防止冷凝压力过低。从工程应用出发,以使用空冷冷凝器的制冷系统为例,依照改变传热系数、传热面积和传热温差的思路,给出了防止冬季冷凝压力过低的技术措施,与此类似措施也可应用于采用水冷冷凝器或蒸发冷凝器的其他制冷系统。 Refrigeration parallel system prone to condensation system in winter is too low, weakening the heat transfer condenser to reduce the heat exchanger condenser, which can prevent the condensation pressure is too low. Based on the engineering application and taking the cooling system using air-cooled condenser as an example, the technical measures to prevent the condensation pressure in winter from being too low are given according to the idea of ​​changing the heat transfer coefficient, heat transfer area and heat transfer temperature difference. Similar measures Can be applied to other refrigeration systems using water-cooled or evaporative condensers.