The invention discloses a vehicle-mounted carbon dioxide phase change circulating refrigerating system, a circulating method and a vehicle-mounted refrigerator. The refrigerating system involves a battery bin group, a vehicle-mounted engine, an air compressor, at least two liquid CO2 storage tanks arranged in parallel and an evaporator, wherein the liquid CO2 storage tanks are connected with the air compressor; and the evaporator is connected with the liquid CO2 storage tanks so as to alternately receive a liquid CO2 refrigerant provided by the liquid CO2 storage tanks and gasify the liquid CO2 refrigerant in the evaporator, and heat exchange is carried out through sensible heat released by cooling of a secondary refrigerant flowing through the outer surface of the pipe wall of the evaporator. According to the vehicle-mounted carbon dioxide phase change circulating refrigerating system, the liquid CO2 refrigerant reverse circulation principle is used for refrigeration, the liquid CO2 refrigerant is fed into the evaporator through high-pressure air in a pressed mode to be gasified into steam, latent heat needs to be absorbed in the gasification process, the absorbed latent heat comes from the sensible heat released by cooling of cold-carrying fresh air flowing through the surface of the evaporator, and after the cold-carrying fresh air releases the sensible heat, the temperature is reduced to achieve the vehicle-mounted refrigeration process.

    本发明公开了一种车载二氧化碳相变循环制冷系统及循环方法和车载制冷器,该制冷系统包括:一电池仓组;一车载发动机;一空压机;至少两并联布置的液态CO2储罐,液态CO2储罐分别与压力气源连接;一蒸发器,蒸发器分别连接液态CO2储罐,以交替接收液态CO2储罐提供的液态CO2冷媒并在蒸发器内气化,由流经蒸发器管壁外表面的载冷剂降温所释放的显热进行换热。本发明利用液态CO2冷媒逆向循环原理制冷,液态CO2冷媒通过高压空气压送进入蒸发器气化成蒸气气化过程中需吸收潜热,吸收的潜热来源于流经蒸发器表面的载冷新风降温所放出的显热,载冷新风放出显热后温度下降实现车载制冷过程。


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    Title :

    Vehicle-mounted carbon dioxide phase change circulating refrigerating system, circulating method and vehicle-mounted refrigerator


    Additional title:

    车载二氧化碳相变循环制冷系统及循环方法和车载制冷器


    Contributors:

    Publication date :

    2021-09-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht



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