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    • 91. 发明公开
    • A REFRIGERATOR WITH FUNCTION OF PRODUCING NITROGEN AND KEEPING FRESHNESS
    • KÜHL-UNDGEFRIERGERÄT麻省理工学院麻醉师ZUFUHR VON STICKSTOFF
    • EP1972872A1
    • 2008-09-24
    • EP07702050.1
    • 2007-01-11
    • Wang, Dong-Lei
    • Wang, Dong-Lei
    • F25D11/00A23B7/14F16L37/00
    • F25D17/042A23B7/148
    • A refrigeration and freezing device with fresh-keeping function by supplying nitrogen comprises a box body, a refrigerating and freezing chamber disposed inside the box body, a door to the refrigerating and freezing chamber, a control device and a nitrogen generator; wherein said nitrogen generator is disposed either inside or outside the box body of the refrigeration and freezing device, characterized in that , said nitrogen generator comprises an air inlet, an oxygen outlet, a nitrogen outlet, an air filter connected with the air inlet, a compressor, a pipe device for transmitting gas, at least one carbon molecular sieve absorber, at least one control valve to control different absorbers to work alternately, a nitrogen storage container, a nitrogen purifier, a pressure reducing valve for adjusting the pressure of the produced nitrogen, a ventilating muffler disposed on a pipe to the oxygen outlet and a control circuit.
    • 通过供给氮气具有保鲜功能的制冷和冷冻装置包括:箱体,设在箱体内部的冷藏室和冷冻室,制冷冷冻室的门,控制装置和氮气发生器; 其中所述氮气发生器设置在所述制冷和冷冻装置的箱体内部或外部,其特征在于,所述氮气发生器包括空气入口,氧气出口,氮气出口,与进气口连接的空气过滤器, 压缩机,用于传输气体的管道装置,至少一个碳分子筛吸收器,至少一个控制阀,以控制不同的吸收器交替工作;氮储存容器,氮气净化器,用于调节所产生的压力的减压阀 氮气,设置在氧气出口的管道上的通风消声器和控制电路。