Hybrid heating and cooling system
    1.
    发明授权
    Hybrid heating and cooling system 有权
    混合式加热和冷却系统

    公开(公告)号:US07228696B2

    公开(公告)日:2007-06-12

    申请号:US11167426

    申请日:2005-06-27

    IPC分类号: F25D23/12

    摘要: A heat and cooling system having an indoor air coil subcircuit, an outdoor air coil subcircuit, a geothermal subcircuit, and a control system for selectively operating the system in air-to-air heating, air-to-air cooling, geothermal heating, air-to-air defrost (optionally) and geothermal defrost modes. The various subcircuits may be connected to one another in parallel. The heating and cooling system may include a control system that permits refrigerant to be selectively routed through any two of the heat exchangers to provide the various modes of operation. In one embodiment, the control system may generally include a circuit having a single reversing valve, a plurality of check valves, a plurality of solenoid valves and a plurality of expansion devices.

    摘要翻译: 具有室内空气线圈分支电路的热和冷却系统,室外空气线圈分支电路,地热分支电路和用于在空对空加热,空对空冷却,地热加热,空气中选择性地操作该系统的控制系统 - 空气除霜(可选)和地热除霜模式。 各个子电路可以彼此并联连接。 加热和冷却系统可以包括允许制冷剂选择性地通过任何两个热交换器路由以提供各种操作模式的控制系统。 在一个实施例中,控制系统通常可以包括具有单个换向阀,多个止回阀,多个电磁阀和多个膨胀装置的电路。

    Geothermal heat exchanger and heat pump circuit
    4.
    发明授权
    Geothermal heat exchanger and heat pump circuit 失效
    地热换热器和热泵电路

    公开(公告)号:US5706888A

    公开(公告)日:1998-01-13

    申请号:US491239

    申请日:1995-06-16

    IPC分类号: F25B13/00 F25B30/06 F21B35/00

    摘要: A heat exchanger and heat pump circuit having an operating subcircuit and a pump down subcircuit each including a liquid line and a heat transfer tube. The heat transfer tube of the pump down subcircuit surrounds the liquid line of the operating subcircuit. During the heating cycle, the heat pump circuit circulates refrigerant through both subcircuits to abstract heat from the heat source/sink. However, during the cooling cycle, the heat pump circuit circulates refrigerant only through the operating subcircuit. Also during the cooling cycle, the heat pump circuit places the pump down subcircuit at low pressure to thermally insulate the operating subcircuit liquid line.

    摘要翻译: 一种热交换器和热泵电路,其具有操作分支电路和每个包括液体管线和传热管的泵送子电路。 泵送子电路的传热管围绕操作子电路的液体管线。 在加热循环期间,热泵回路使制冷剂通过两个子电路循环,以从热源/水槽抽取热量。 然而,在冷却循环期间,热泵回路仅通过运行的子电路使制冷剂循环。 此外,在冷却循环期间,热泵回路将泵向下的子电路放置在低压下,以使操作的分支液体管路热绝缘。

    Heat exchanger and heat pump circuit
    5.
    发明授权
    Heat exchanger and heat pump circuit 失效
    热交换器和热泵电路

    公开(公告)号:US5875644A

    公开(公告)日:1999-03-02

    申请号:US905192

    申请日:1997-08-04

    IPC分类号: F25B13/00 F25B30/06

    摘要: A heat exchanger and heat pump circuit having an operating subcircuit and a pump down subcircuit each including a liquid line and a heat transfer tube. The heat transfer tube of the pump down subcircuit surrounds the liquid line of the operating subcircuit. During the heating cycle, the heat pump circuit circulates refrigerant through both subcircuits to abstract heat from the heat source/sink. However, during the cooling cycle, the heat pump circuit circulates refrigerant only through the operating subcircuit. Also during the cooling cycle, the heat pump circuit places the pump down subcircuit at low pressure to thermally insulate the operating subcircuit liquid line.

    摘要翻译: 一种热交换器和热泵电路,其具有操作分支电路和每个包括液体管线和传热管的泵送子电路。 泵送子电路的传热管围绕操作子电路的液体管线。 在加热循环期间,热泵回路使制冷剂通过两个子电路循环,以从热源/水槽抽取热量。 然而,在冷却循环期间,热泵回路仅通过运行的子电路使制冷剂循环。 此外,在冷却循环期间,热泵回路将泵向下的子电路放置在低压下,以使操作的分支液体管路热绝缘。