The invention relates to the field of LNG (Liquefied Natural Gas) air conditioners, and particularly provides an efficient heat exchanger for an LNG air conditioner. The efficient heat exchanger comprises an outer storage tank for storing a cold storage agent, an inner heat exchange coil pipe, an outer heat exchange coil pipe and an inner storage tank; the inner heat exchange coil pipe is used forconveying LNG; the outer heat exchange coil pipe is used for conveying a secondary refrigerant; the outer heat exchange coil pipe is arranged on the periphery of the inner heat exchange coil pipe ina sleeving mode, and a coaxial arrangement mode is adopted for the outer heat exchange coil pipe and the inner heat exchange coil pipe; the inner storage tank is used for storing the secondary refrigerant, the inner storage tank is arranged in the outer storage tank and is completely immersed in the cold storage agent, and an outlet of the outer heat exchange coil communicates with an inner cylinder. According to the efficient heat exchanger, the cold storage agent is used as an intermediate heat exchange medium, and the heat exchange coil pipe arrangement form of inner cooling and outer heating is adopted, so that the problems that the LNG air conditioner cannot continuously operate, the heat exchange efficiency is low and the cold energy loss is serious due to freezing of the secondary refrigerant during high-temperature difference heat exchange of LNG and the secondary refrigerant are solved.

    本发明涉及LNG空调领域,具体提供了一种LNG空调用高效换热器,包括外储罐,所述外储罐用于存储蓄冷剂;内换热盘管,所述内换热盘管用于输送LNG;外换热盘管,所述外换热盘管用于输送载冷剂;所述外换热盘管套设在所述内换热盘管的外围,采用同轴布置形式;内储罐,所述内储罐用于存储载冷剂,所述内储罐设置在所述外储罐内部且全部浸没于蓄冷剂中,所述外换热盘管的出口与内筒体连通。本发明使用蓄冷剂作为中间换热介质,并采用内冷外热的换热盘管布置形式,解决了LNG与载冷剂高温差换热时载冷剂冻结造成的LNG空调无法持续运行、换热效率低和冷量损失严重的问题。


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    Title :

    Efficient heat exchanger for LNG air conditioner


    Additional title:

    一种LNG空调用高效换热器


    Contributors:

    Publication date :

    2021-03-26


    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 / F28D Wärmetauscher, soweit in keiner anderen Unterklasse vorgesehen, in denen die Wärmetauschmittel nicht in direkte Berührung miteinander kommen , HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT



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