Cascade refrigeration cycle apparatus
    1.
    发明授权
    Cascade refrigeration cycle apparatus 有权
    级联制冷循环装置

    公开(公告)号:US09593869B2

    公开(公告)日:2017-03-14

    申请号:US14029571

    申请日:2013-09-17

    IPC分类号: F25B7/00 F25B1/00

    摘要: According to one embodiment, a cascade refrigeration cycle apparatus according to the present embodiment includes a high-temperature-side and a low-temperature-side refrigeration circuits, an inverter and a control section. The high-temperature-side refrigeration circuit includes a first compressor and a cascade heat exchanger. The low-temperature-side refrigeration circuit includes a second compressor and the cascade heat exchanger. The inverter connected to at least one of the compressors. The control section controls the inverter so that a set operating frequency for the first compressor is higher than a set operating frequency for the second compressor when an operation of the apparatus is started.

    摘要翻译: 根据一个实施例,根据本实施例的级联制冷循环装置包括高温侧和低温侧制冷回路,逆变器和控制部。 高温侧制冷回路包括第一压缩机和级联热交换器。 低温侧制冷回路包括第二压缩机和级联热交换器。 逆变器连接到至少一个压缩机。 所述控制部控制所述逆变器,使得当所述装置的动作开始时,所述第一压缩机的设定动作频率高于所述第二压缩机的设定动作频率。

    Combined cascade refrigeration cycle apparatus
    3.
    发明授权
    Combined cascade refrigeration cycle apparatus 有权
    联合级联制冷循环装置

    公开(公告)号:US09395107B2

    公开(公告)日:2016-07-19

    申请号:US14186810

    申请日:2014-02-21

    摘要: According to one embodiment, an apparatus includes a housing, two high-temperature-side refrigeration circuits and two low-temperature-side refrigeration circuits. Each of the high-temperature-side refrigeration circuits is configured to exchange heat with both of the two low-temperature-side refrigeration circuits by cascade heat exchangers. A hot-water pipe letting water or hot water through water-refrigerant heat exchangers of the high-temperature-side refrigeration circuits is provided. When the low-temperature-side refrigeration circuit conducts a defrosting operation of the evaporator, the low-temperature-side refrigeration circuits are controlled in such a way that the low-temperature-side refrigerant circuit releases heat in the cascade heat exchanger.

    摘要翻译: 根据一个实施例,一种装置包括壳体,两个高温侧制冷回路和两个低温侧制冷回路。 每个高温侧制冷回路构成为通过级联热交换器与两个低温侧制冷回路两者进行热交换。 提供通过高温侧制冷回路的水 - 制冷剂热交换器使水或热水通过的热水管。 当低温侧制冷回路进行蒸发器的除霜运转时,低温侧制冷回路以低温侧制冷剂回路在级联热交换器内释放热量的方式进行控制。