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公开(公告)号：WO2005062814A3
公开(公告)日：2005-11-17
申请号：PCT/US2004042601
申请日：2004-12-20
Applicant: CARRIER CORP
Inventor： EISENHOWER BRYAN A , CONCHA JULIO
CPC classification number: F24H4/04 , F25B9/008 , F25B30/02 , F25B49/005 , F25B2309/061 , F25B2339/047 , F25B2500/26 , F25B2600/2513 , F25B2700/1931 , F25B2700/2106 , F25B2700/21161
Abstract: A method of controlling a startup operation in a heat pump water heater system prevents inadvertent shutdowns and/or low operating efficiencies via closed loop control of the system. The method includes choosing an expansion valve opening at startup near an expected steady state value to ensure high system capacity as early as possible, setting a water pump signal to a high level to maximize cycle efficiency during warm-up, and applying closed loop control over the expansion valve and the water pump to increase the pressure in the system in a controlled manner until the system reaches a steady operating state. The method provides stable startup control even if a transcritical vapor compression system is used as the heat pump
Abstract translation: 控制热泵热水器系统启动操作的方法通过系统的闭环控制来防止无意的停机和/或低的运行效率。 该方法包括在启动时选择在预期稳态值附近的膨胀阀开度，以尽可能早地确保高系统容量，将水泵信号设置为高电平，以在预热期间最大化循环效率，并对闭环控制进行应用 膨胀阀和水泵以受控的方式增加系统中的压力，直到系统达到稳定的运行状态。 即使采用跨临界蒸气压缩系统作为热泵，该方法也能提供稳定的启动控制
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公开(公告)号：WO2005062814A8
公开(公告)日：2006-11-02
申请号：PCT/US2004042601
申请日：2004-12-20
Applicant: CARRIER CORP
Inventor： EISENHOWER BRYAN A , CONCHA JULIO
CPC classification number: F24H4/04 , F25B9/008 , F25B30/02 , F25B49/005 , F25B2309/061 , F25B2339/047 , F25B2500/26 , F25B2600/2513 , F25B2700/1931 , F25B2700/2106 , F25B2700/21161
Abstract: A method of controlling a startup operation in a heat pump water heater system prevents inadvertent shutdowns and/or low operating efficiencies via closed loop control of the system. The method includes choosing an expansion valve opening at startup near an expected steady state value to ensure high system capacity as early as possible, setting a water pump signal to a high level to maximize cycle efficiency during warm-up, and applying closed loop control over the expansion valve and the water pump to increase the pressure in the system in a controlled manner until the system reaches a steady operating state. The method provides stable startup control even if a transcritical vapor compression system is used as the heat pump
Abstract translation: 控制热泵热水器系统启动操作的方法通过系统的闭环控制来防止无意的停机和/或低的运行效率。 该方法包括在启动时选择在预期稳态值附近的膨胀阀开度，以尽可能早地确保高系统容量，将水泵信号设置为高电平，以在预热期间最大化循环效率，并对闭环控制进行应用 膨胀阀和水泵以受控的方式增加系统中的压力，直到系统达到稳定的运行状态。 即使采用跨临界蒸气压缩系统作为热泵，该方法也能提供稳定的启动控制
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公开(公告)号：WO2005077015A3
公开(公告)日：2006-04-20
申请号：PCT/US2005003902
申请日：2005-02-07
Applicant: CARRIER CORP
Inventor： CONCHA JULIO , CHEN YU , PARK YOUNG KYU , SIENEL TOBIAS H
CPC classification number: F25B30/02 , F25B47/022 , F25B2339/047 , F25B2400/0403 , F25B2500/18 , F25B2500/19 , F25B2700/133 , F25B2700/2106 , F25B2700/21151
Abstract: A heat pump (22, 32, 38, 40), and in particular a heat pump for heating a hot water supply (34) is provided with an improved defrost mode. The defrost mode is actuated to remove frost from an outdoor evaporator (40) that may accumulate during cold weather operation. When the heat pump is utilized to heat hot water, methods are provided to prevent the water that remains in the heat exchanger from becoming unduly heated. In one method, the water pump (36) may be periodically operated to move the water. In a second method, a control ensures that discharge pressure of the refrigerant leaving the compressor is reduced, and that the water pump (36) is not stopped until that reduced temperature falls below a predetermined maximum.
Abstract translation: 特别地，用于加热热水供应（34）的热泵（22,32,38,40）具有改进的除霜模式。 启动除霜模式以从室外蒸发器（40）中除霜，这可能在寒冷天气下运行时积聚。 当使用热泵来加热热水时，提供了防止热交换器中残留的水变得过度加热的方法。 在一种方法中，水泵（36）可以周期性地操作以移动水。 在第二种方法中，控制器确保离开压缩机的制冷剂的排出压力降低，并且水泵（36）不停止，直到降低的温度降到预定的最大值以下。
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