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    • 10. 发明申请
    • REFRIGERATION SYSTEM UTILIZING NATURAL CIRCULATION OF HEAT TO CARRY OUT DEFROSTING THEREOF
    • 利用自然循环的制冷系统进行破坏
    • US20140130532A1
    • 2014-05-15
    • US13684735
    • 2012-11-26
    • Hui Jiunn CHEN
    • Hui Jiunn CHEN
    • F25D21/06
    • F25B47/022F25B2400/24
    • A refrigeration system utilizing natural circulation of heat to carry out defrosting thereof provides a refrigeration cycle path and a defrost cycle path, and is characterized by a heat energy storage device located at an output of a compressor that is common for the two cycle paths. High-temperature high-pressure overheated refrigerant output by the compressor passes through the heat energy storage device and releases part of heat energy thereto for storage. When the refrigeration system is switched from the refrigeration cycle path to the defrost cycle path, the compressor is turned off and three-way valves upstream an evaporator are opened, a pressure difference between the heat energy storage device and the evaporator drives the hot refrigerant to directly flow through the three-way valves into a coil of the evaporator to melt frost on the coil from inner to outer side while the refrigerant keeps circulating along the defrost cycle path.
    • 利用热自然循环进行除霜的制冷系统提供了制冷循环路径和除霜循环路径,其特征在于位于压缩机的两个循环路径通用的输出端的热能存储装置。 由压缩机输出的高温高压过热制冷剂通过热能储存装置并将一部分热能释放到其中以便储存。 当制冷系统从制冷循环路径切换到除霜循环路径时,压缩机关闭,蒸发器上游的三通阀打开,热能储存装置和蒸发器之间的压差驱动热制冷剂 直接通过三通阀进入蒸发器的盘管,以从内到外熔化线圈上的霜,同时制冷剂沿着除霜循环路径继续循环。