Flash tank design and control for heat pumps
    7.
    发明申请
    Flash tank design and control for heat pumps 审中-公开
    闪蒸罐设计和控制热泵

    公开(公告)号:US20070251256A1

    公开(公告)日:2007-11-01

    申请号:US11725557

    申请日:2007-03-19

    IPC分类号: F25B13/00

    摘要: A flash tank for a heat pump operable in a heating mode and a cooling mode includes a shell having a middle portion disposed between a top portion and a bottom portion, with the top portion, bottom portion, and middle portion cooperating to define an inner volume of the shell. A first port is in fluid communication with the inner volume and functions as an inlet in the heating mode and as an outlet in the cooling mode. A second port is in fluid communication with the inner volume and functions as an inlet in the cooling mode and as an outlet in the heating mode. Flow control devices and check valves are fluidly coupled to control the tank as a flash tank in heating mode and as a receiver in cooling mode.

    摘要翻译: 一种用于以加热模式和冷却模式操作的热泵的闪蒸罐包括壳体,其具有设置在顶部和底部之间的中间部分,顶部,底部和中间部分配合以限定内部容积 的壳。 第一端口与内部容积流体连通,并且用作加热模式中的入口和作为冷却模式的出口。 第二端口与内部容积流体连通,并且用作冷却模式中的入口和作为加热模式中的出口。 流量控制装置和止回阀流体耦合以将罐作为加热模式下的闪蒸罐并作为冷却模式的接收器进行控制。

    FLASH TANK DESIGN AND CONTROL FOR HEAT PUMPS
    9.
    发明申请
    FLASH TANK DESIGN AND CONTROL FOR HEAT PUMPS 有权
    闪蒸罐设计与控制

    公开(公告)号:US20080053136A1

    公开(公告)日:2008-03-06

    申请号:US11930983

    申请日:2007-10-31

    IPC分类号: F25B47/02

    摘要: A method includes operating a compressor of a heat pump system and is selectively providing vapor to a vapor injection port of the compressor via a vapor injection line and vapor injection valve. The method further includes determining a frost condition of a first and second heat exchanger of the heat pump system and closing a vapor injection valve to prevent fluid flow into the compressor at the vapor injection port. A direction of refrigerant flow is reversed to direct vaporized refrigerant to the one of said first and second heat exchangers experiencing the frost condition. The vapor injection valve is opened after a first predetermined time period following reversal of the refrigerant flow. The method further includes closing the vapor injection valve and reversing a direction of refrigerant flow within the heat pump system once the vapor injection valve is closed for a second predetermined time period.

    摘要翻译: 一种方法包括操作热泵系统的压缩机,并且通过蒸气喷射管线和蒸气喷射阀选择性地将蒸汽提供给压缩机的蒸气喷射端口。 该方法还包括确定热泵系统的第一和第二热交换器的霜状况并关闭蒸气喷射阀以防止流体在蒸气喷射口处流入压缩机。 制冷剂流动的方向相反,以将蒸发的制冷剂引导到经历霜冻状态的所述第一和第二热交换器中的一个。 蒸汽喷射阀在制冷剂流动反转之后的第一预定时间段之后打开。 该方法还包括关闭蒸气喷射阀并且一旦蒸汽喷射阀关闭第二预定时间段,则反转热泵系统内的制冷剂流动的方向。