A transcritical carbon dioxide air conditioning system for an electric bus comprises a compressor, a three-way valve, an external heat exchanger, a first drying filter, a second drying filter, an internal heat exchanger, a gas-liquid separator and a heat regenerator, an outlet of the compressor is connected with a first connector of the three-way valve, and a second connector of the three-way valve is connected with an inlet of the external heat exchanger. A third connector of the three-way valve is connected with an inlet of the in-vehicle heat exchanger, one path of an outlet of the out-vehicle heat exchanger is sequentially connected with the first ball valve, the first drying filter, the in-vehicle heat exchanger, the gas-liquid separator, the heat regenerator and an air suction port of the compressor, and the other path of the outlet of the out-vehicle heat exchanger is connected with the gas-liquid separator. A pure natural environment-friendly CO2 refrigerant is adopted, the problem that a pure electric bus is low in heating efficiency in winter is solved, combined valves such as a pressure release valve and a ball valve are adopted, the situation that the system is blocked or abnormal high pressure of the system is caused under other abnormal conditions is prevented, and the heat regenerator in the system can effectively increase the suction superheat degree of the compressor and prevent liquid impact of the compressor.

    一种电动大巴用跨临界二氧化碳空调系统,所述系统包括压缩机、三通阀、车外换热器、第一干燥过滤器、第二干燥过滤器、车内换热器、气液分离器、回热器,压缩机的出口连接三通阀的第一接口,三通阀的第二接口连接车外换热器的进口,三通阀的第三接口连接车内换热器的进口,车外换热器的出口一路依次连接第一球阀、第一干燥过滤器、车内换热器、气液分离器、回热器和压缩机的吸气口,另一路连接气液分离器。本发明采用纯天然环保CO2制冷剂,克服了纯电动大巴冬季制热效率低下的问题,采用泄压阀、球阀等组合阀件,防止系统发生堵塞或者其它异常情况下造成系统异常高压,本系统中的回热器,可以有效增加压缩机吸气过热度,防止压缩机液击。


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    Titel :

    Transcritical carbon dioxide air conditioning system for electric bus


    Weitere Titelangaben:

    一种电动大巴用跨临界二氧化碳空调系统


    Beteiligte:
    YANG WEI (Autor:in) / WU HAIMEI (Autor:in) / ZHANG ZEBIN (Autor:in) / DENG RONGBIN (Autor:in) / ZHAO PENGJU (Autor:in)

    Erscheinungsdatum :

    2022-04-26


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    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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