The invention discloses a railway vehicle refrigerating system with a fresh air pre-cooling function. The railway vehicle refrigerating system comprises a compressor, a condenser, a drying filter, anexpansion valve, an evaporator and a fresh air precooler. The compressor, the condenser, the drying filter, the expansion valve, the evaporator and the fresh air precooler are connected in sequence. The fresh air pre-cooler comprises a first refrigerant channel and a first air channel, an inlet of the first refrigerant channel is connected with an outlet of the evaporator, an outlet of the first refrigerant channel is connected with an inlet of the compressor, and an inlet of the first air channel is connected with an outdoor fresh air channel. The fresh air precooler is adopted for precoolingfresh air, the temperature of the fresh air is reduced, the air refrigeration load is reduced, and the refrigerating capacity of the system is improved.
本发明公开了一种具有新风预冷功能的轨道车辆制冷系统,包括压缩机、冷凝器、干燥过滤器、膨胀阀、蒸发器和新风预冷器,所述压缩机、冷凝器、干燥过滤器、膨胀阀、蒸发器和新风预冷器依次相连,所述新风预冷器包括第一制冷剂通道和第一空气通道,所述第一制冷剂通道的进口与所述蒸发器的出口相连,所述第一制冷剂通道的出口与所述压缩机的进口相连,所述第一空气通道的进口与室外新风通道相连。本发明采用新风预冷器对新风进行预冷,降低新风温度,降低空气制冷负荷,提高系统制冷量。
Railway vehicle refrigerating system with fresh air pre-cooling function
一种具有新风预冷功能的轨道车辆制冷系统
12.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
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