The invention provides a methane subcooler. The methane subcooler comprises a shell, a methane subcooling heat exchange assembly and a nitrogen heat exchange assembly. The shell is filled with liquid nitrogen with a preset liquid level; the methane supercooling heat exchange assembly is arranged in the shell and is used for introducing liquid methane; the nitrogen heat exchange assembly is arranged in the shell and used for introducing nitrogen. The nitrogen heat exchange assembly can heat the liquid nitrogen to the boiling point temperature under the preset pressure, so that the liquid nitrogen exchanges heat with liquid methane in the methane supercooling heat exchange assembly at the boiling point temperature under the preset pressure. The nitrogen heat exchange assembly is used for heating the liquid nitrogen, so that the boiling temperature of the liquid nitrogen ranges from-180 DEG C to-165 DEG C under the pressure of 0.4-0.7 MPa, the temperature difference between the liquid nitrogen and the liquid methane is reduced, the liquid methane cannot be solidified and frozen, and then the completeness of a filling pipeline and system equipment is guaranteed.

    本申请提供甲烷过冷器,甲烷过冷器包括壳体、甲烷过冷换热组件以及氮气换热组件;壳体内填充有预设液位的液氮;甲烷过冷换热组件设置于壳体内,且用于通入液甲烷;氮气换热组件设置于壳体内,且用于通入氮气;氮气换热组件能够将液氮加热至预设压力下的沸点温度,以使液氮以预设压力下的沸点温度与甲烷过冷换热组件内的液甲烷换热。本申请利用氮气换热组件对液氮加热,使液氮的沸腾温度为0.4‑0.7MPa压力下的‑180℃‑‑165℃之间,缩小了液氮与液甲烷之间的温差,不会使液甲烷出现凝固冻结的现象,进而保证了加注管路以及系统设备的完整性。


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    Title :

    Methane subcooler


    Additional title:

    甲烷过冷器


    Contributors:
    SHANG ZIYAO (author) / WU ZHIJIAN (author) / CHEN YUZE (author) / YANG HUIMIN (author) / WANG SHUGUANG (author) / FAN ZHENHONG (author) / LI JIANXIN (author)

    Publication date :

    2025-01-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F25D REFRIGERATORS , Kühlschränke / B64G Raumfahrt , COSMONAUTICS



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