Refrigeration apparatus
    1.
    发明授权
    Refrigeration apparatus 有权
    制冷装置

    公开(公告)号:US09429347B2

    公开(公告)日:2016-08-30

    申请号:US14117667

    申请日:2011-08-04

    摘要: A refrigeration apparatus includes a high-temperature side circulation circuit, a low-temperature side circulation circuit, a cascade capacitor, and control means. The high-temperature side circulation circuit forms a refrigerant circuit in which a high-temperature side compressor, a high-temperature side condenser, a high-temperature side expansion device, and a high-temperature side evaporator are connected by a pipe. The refrigerant circuit allows a high-temperature side refrigerant to circulate therethrough. The high-temperature side refrigerant has a carbon-carbon double bond in its molecular structure. The high-temperature side compressor has a variable discharge capacity and is configured to discharge the high-temperature side refrigerant. The low-temperature side circulation circuit forms a refrigerant circuit in which a low-temperature side compressor, a low-temperature side condenser, a low-temperature side expansion device, and a low-temperature side evaporator are connected by a pipe. The refrigerant circuit allows a low-temperature side refrigerant to circulate therethrough. The low-temperature side refrigerant contains carbon dioxide.

    摘要翻译: 制冷装置包括高温侧循环回路,低温侧循环回路,级联电容器和控制单元。 高温侧循环回路形成高温侧压缩机,高温侧冷凝器,高温侧膨胀装置和高温侧蒸发器通过管连接的制冷剂回路。 制冷剂回路允许高温侧制冷剂在其中循环。 高温侧制冷剂在其分子结构中具有碳 - 碳双键。 高温侧压缩机具有可变放电容量,并且被配置为排出高温侧制冷剂。 低温侧循环回路形成低温侧压缩机,低温侧冷凝器,低温侧膨胀装置和低温侧蒸发器通过管连接的制冷剂回路。 制冷剂回路允许低温侧制冷剂在其中循环。 低温侧制冷剂含有二氧化碳。

    REFRIGERATING APPARATUS
    3.
    发明申请
    REFRIGERATING APPARATUS 有权
    制冷设备

    公开(公告)号:US20130180278A1

    公开(公告)日:2013-07-18

    申请号:US13876570

    申请日:2011-11-14

    IPC分类号: F25D31/00

    摘要: A refrigerating apparatus includes a high temperature side first cycle; a high temperature side second cycle; a low temperature side cycle in which carbon dioxide is used as a refrigerant; a first cascade condenser and a second cascade condenser, which each exchange heat between a high temperature side refrigerant and a low temperature side refrigerant; and a control unit lowering an evaporation temperature of a high temperature side evaporator in correspondence to the flow of the low temperature side refrigerant.

    摘要翻译: 制冷装置包括高温侧第一循环; 高温侧第二循环; 使用二氧化碳作为制冷剂的低温侧循环; 第一级联冷凝器和第二级联冷凝器,其在高温侧制冷剂和低温侧制冷剂之间进行热交换; 以及控制单元,其相应​​于低温侧制冷剂的流动降低高温侧蒸发器的蒸发温度。

    REFRIGERATION APPARATUS
    10.
    发明申请
    REFRIGERATION APPARATUS 审中-公开
    制冷装置

    公开(公告)号:US20150153076A1

    公开(公告)日:2015-06-04

    申请号:US14401916

    申请日:2012-08-23

    IPC分类号: F25B7/00 F25B49/02

    摘要: A refrigeration apparatus includes a high-temperature side circulation circuit and a low-temperature side circulation circuit. The high-temperature side circulation circuit A is configured by connecting a high-temperature side compressor, a high-temperature side condenser, a high-temperature side expansion valve, and a high-temperature side evaporator of a cascade heat exchanger to one another. The low-temperature side circulation circuit is configured by connecting a low-temperature side compressor, a low-temperature side condenser of the cascade heat exchanger, a receiver that stores a liquid refrigerant, a solenoid valve, a low-temperature side expansion valve, and a low-temperature side evaporator to one another. A refrigerant in the low-temperature side circulation circuit includes a zeotropic refrigerant mixture containing at least CO2 and R32. The content of R32 in the entire zeotropic refrigerant mixture is 50% to 74% by mass, and the GWP of the zeotropic refrigerant mixture is equal to or less than 500.

    摘要翻译: 制冷装置包括高温侧循环回路和低温侧循环回路。 高温侧循环回路A通过将级联热交换器的高温侧冷凝器,高温侧冷凝器,高温侧膨胀阀和高温侧蒸发器彼此连接而构成。 低温侧循环回路通过连接低压侧压缩机,级联热交换器的低温侧冷凝器,储存液体制冷剂的接收器,电磁阀,低温侧膨胀阀, 和低温侧蒸发器。 低温侧循环回路中的制冷剂包括至少含有CO 2和R 32的非共沸混合制冷剂混合物。 整个非共沸混合制冷剂中R32的含量为50〜74质量%,非共沸混合制冷剂的GWP为500以下。