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US07644593B2 CO2 refrigeration circuit with sub-cooling of the liquid refrigerant against the receiver flash gas and method for operating the same 失效
二氧化碳制冷回路与液体制冷剂相接触的闪蒸气体及其操作方法

  • Patent Title: CO2 refrigeration circuit with sub-cooling of the liquid refrigerant against the receiver flash gas and method for operating the same
  • Patent Title (中): 二氧化碳制冷回路与液体制冷剂相接触的闪蒸气体及其操作方法
  • Application No.: US11659925
    Application Date: 2005-02-18
  • Publication No.: US07644593B2
    Publication Date: 2010-01-12
  • Inventor: Suresh Duraisamy
  • Applicant: Suresh Duraisamy
  • Applicant Address: US CT Farmington
  • Assignee: Carrier Corporation
  • Current Assignee: Carrier Corporation
  • Current Assignee Address: US CT Farmington
  • Agency: Bachman & LaPointe, P.C.
  • Priority: DE102004038640 20040809
  • International Application: PCT/US2005/005413 WO 20050218
  • International Announcement: WO2006/022829 WO 20060302
  • Main IPC: F25B1/10
  • IPC: F25B1/10
CO2 refrigeration circuit with sub-cooling of the liquid refrigerant against the receiver flash gas and method for operating the same
Abstract:
CO2 refrigeration circuit (2) for circulating a refrigerant in a predetermined flow direction, comprising in flow direction a heat-rejecting heat exchanger (4), a receiver (10) having a liquid portion (12) and a flash gas portion (14), and subsequent to the receiver (10) a medium temperature loop (20) and a low temperature loop (24), wherein the medium and low temperature loops (24) each comprise in flow direction an expansion device (26, 28), an evaporator (30, 32) and a compressor (46, 38), the refrigeration circuit (2) further comprising a liquid line (16) connecting the liquid portion (12) of the receiver (10) with at least one of the medium and low temperature loops (20, 24) and having an internal heat exchanger (54), and a flash gas line (50) connecting the flash gas portion (14) of the receiver (10) via the internal heat exchanger (54) with the inlet of the low temperature compressor (46), wherein the internal heat exchanger (54) transfers in use heat from the liquid flowing through the liquid line (16) to the flash gas flowing through the flash gas line (50).
Abstract(Chinese):

用于使预定流向的制冷剂循环的二氧化碳制冷回路（2），包括沿流动方向的排热热交换器（4），具有液体部分（12）和闪蒸气体部分（14）的接收器（10） 接收器（10）和介质温度回路（20）和低温回路（24）之后，其中中低温回路（24）各自包括沿流动方向的膨胀装置（26,28），一个 蒸发器（30,32）和压缩机（46,38），制冷回路（2）还包括液体管线（16），其将接收器（10）的液体部分（12）与至少一个介质和 低温回路（20,24）并具有内部热交换器（54），以及通过内部热交换器（54）将接收器（10）的闪蒸气体部分（14）与内部热交换器（54）连接的闪蒸管线（50） 低温压缩机（46）的入口，其中内部热交换器（54）使用热量从流过的液体转移 将液体管线（16）移动到流过闪蒸气体管线（50）的闪蒸气体。

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