SUPERCRITICAL CYCLE AND HEAT PUMP HOT-WATER SUPPLIER USING SAME
    1.
    发明公开
    SUPERCRITICAL CYCLE AND HEAT PUMP HOT-WATER SUPPLIER USING SAME 审中-公开
    SUPERKRITISCHER ZYKLUS UNDWÄRMEPUMPEN-HEISSWASSERZUFUHRRORRICHTUNG DAMIT

    公开(公告)号:EP2752628A1

    公开(公告)日:2014-07-09

    申请号:EP12827959.3

    申请日:2012-08-22

    IPC分类号: F25B1/10 F25B1/00 F25B30/02

    摘要: To provide a supercritical cycle capable of setting a relatively low design pressure for devices subsequent to an intermediate pressure receiver and thereby reducing manufacturing costs while reducing thickness of each device and thereby achieving enhanced performance in proportion to the reduced thickness, and a heat pump water heater using the same. A supercritical cycle, having a refrigerant circuit (21) configured to include a compressor (9), a radiator (11), a first electronic expansion valve (12), an intermediate pressure receiver (13), second electronic expansion valves (16A, 16B), and evaporators (17A, 17B), which are connected in this order via a pipe, includes: a pressure sensor (34) configured to be placed on a downstream side of the first electronic expansion valve (12) to detect intermediate pressure; and a control means (35) configured to prohibit control of the first electronic expansion valve (12) to an open direction when a detection value of the pressure sensor (34) satisfies a predetermined intermediate pressure condition.

    摘要翻译: 为了提供能够为中间压力接收器之后的装置设定相对低的设计压力并从而降低制造成本同时减少每个装置的厚度并由此实现与减小的厚度成比例的增强的性能的超临界循环,以及热泵热水器 使用相同 具有制冷剂回路(21)的超临界循环,该制冷剂回路构成为包括压缩机(9),散热器(11),第一电子膨胀阀(12),中压接收器(13),第二电子膨胀阀 16B)和通过管子依次连接的蒸发器(17A,17B)包括:压力传感器(34),被配置为放置在第一电子膨胀阀(12)的下游侧,以检测中间压力 ; 以及控制装置(35),被配置为当压力传感器(34)的检测值满足预定的中间压力条件时,禁止对打开方向的第一电子膨胀阀(12)的控制。