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    • 38. 发明申请
    • FLASH TANK DESIGN AND CONTROL FOR HEAT PUMPS
    • 闪蒸罐设计与控制
    • US20080053136A1
    • 2008-03-06
    • US11930983
    • 2007-10-31
    • Hung PhamJean-Luc CaillatRonald Van Hoose
    • Hung PhamJean-Luc CaillatRonald Van Hoose
    • F25B47/02
    • F04C29/042F25B1/10F25B13/00F25B43/006F25B47/025F25B2313/02741F25B2400/02F25B2400/13F25B2400/16F25B2400/23F25B2500/01F25B2600/2519
    • 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.
    • 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。