Defrost mode for HVAC heat pump systems
    5.
    发明授权
    Defrost mode for HVAC heat pump systems 有权
    HVAC热泵系统的除霜模式

    公开(公告)号:US07228692B2

    公开(公告)日:2007-06-12

    申请号:US10776374

    申请日:2004-02-11

    IPC分类号: F25D21/06

    摘要: A heat pump, and in particular a heat pump for heating a hot water supply is provided with an improved defrost mode. The defrost mode is actuated to remove frost from an outdoor evaporator that may accumulate during cold weather operation. An algorithm for operation of the defrost mode is developed experimentally by seeking to maximize the heat transfer provided by the refrigerant. A heating system condition is experimentally related to the heat transfer capacity. One then maximizes the average heat transfer capacity to determine the optimum initiation point for the defrost mode. Further, protections are included into the defrost mode. 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 may be periodically operated to move the water. In a second method, a control ensures the discharge pressure of the refrigerant leaving the compressor is reduced, and that the water pump is not stopped until that reduced temperature falls below a predetermined maximum. The temperature reduction is achieved through a dual control loop wherein a temperature that is too high results in a new desired discharge pressure. The control achieves the new desired pressure by controlling the expansion device. In another protection feature, as a control determines that the defrost mode is nearing its end, an evaporator fan is run to remove melted water from the evaporator coils, and also to ensure the refrigerant leaving the evaporator does not reach unduly high pressure or temperatures.

    摘要翻译: 具有改进的除霜模式的热泵,特别是用于加热热水源的热泵。 启动除霜模式以从室外蒸发器中除霜,这可能会在寒冷天气下运行时积聚。 通过试图使制冷剂提供的热传递最大化,实验地开发了除霜模式的操作算法。 加热系统条件实验上与传热能力有关。 然后将平均传热能力最大化,以确定除霜模式的最佳起始点。 此外,保护被包括在除霜模式中。 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放压力降低,并且水泵不停止,直到降低的温度降到预定的最大值以下。 通过双重控制回路实现温度降低,其中太高的温度导致新的期望排出压力。 该控制通过控制膨胀装置实现新的期望压力。 在另一个保护特征中,当控制器确定除霜模式接近其结束时,运行蒸发器风扇以从蒸发器盘管去除熔化的水,并且还确保离开蒸发器的制冷剂不会达到过高的压力或温度。

    Method and apparatus for monitoring air-exchange evaporation in a refrigerant-cycle system
    6.
    发明授权
    Method and apparatus for monitoring air-exchange evaporation in a refrigerant-cycle system 有权
    用于监测制冷剂循环系统中的空气交换蒸发的方法和装置

    公开(公告)号:US07201006B2

    公开(公告)日:2007-04-10

    申请号:US11130871

    申请日:2005-05-17

    申请人: Lawrence Kates

    发明人: Lawrence Kates

    IPC分类号: G01K13/00 F25B41/00 B60H1/00

    摘要: A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or more sensors and uses the sensor data to calculate a figure of merit related to the efficiency of the system. In one embodiment, the sensors include one or more of the following sensors: a suction line temperature sensor, a suction line pressure sensor, a suction line flow sensor, a hot gas line temperature sensor, a hot gas line pressure sensor, a hot gas line flow sensor, a liquid line temperature sensor, a liquid line pressure sensor, a liquid line flow sensor. In one embodiment, the sensors include one or more of an evaporator air temperature input sensor, an evaporator air temperature output sensor, an evaporator air flow sensor, an evaporator air humidity sensor, and a differential pressure sensor. In one embodiment, the sensors include one or more of a condenser air temperature input sensor, a condenser air temperature output sensor, and a condenser air flow sensor, an evaporator air humidity sensor. In one embodiment, the sensors include one or more of an ambient air sensor and an ambient humidity sensor.

    摘要翻译: 描述了监测制冷剂循环系统的操作的各个方面的实时监控系统。 在一个实施例中,系统包括处理器,其测量提供给制冷剂循环系统的功率,并从一个或多个传感器收集数据,并使用传感器数据来计算与系统效率相关的品质因数。 在一个实施例中,传感器包括以下传感器中的一个或多个:吸入管线温度传感器,吸入管线压力传感器,吸入管线流量传感器,热气体管线温度传感器,热气体管线压力传感器,热气体 线路流量传感器,液体线路温度传感器,液体线路压力传感器,液体线路流量传感器。 在一个实施例中,传感器包括蒸发器空气温度输入传感器,蒸发器空气温度输出传感器,蒸发器空气流量传感器,蒸发器空气湿度传感器和差压传感器中的一个或多个。 在一个实施例中,传感器包括冷凝器空气温度输入传感器,冷凝器空气温度输出传感器和冷凝器空气流量传感器,蒸发器空气湿度传感器中的一个或多个。 在一个实施例中,传感器包括一个或多个环境空气传感器和环境湿度传感器。

    Intelligent thermostat system for load monitoring a refrigerant-cycle apparatus
    7.
    发明申请
    Intelligent thermostat system for load monitoring a refrigerant-cycle apparatus 有权
    用于负载监测制冷循环装置的智能恒温系统

    公开(公告)号:US20060196197A1

    公开(公告)日:2006-09-07

    申请号:US11417609

    申请日:2006-05-03

    申请人: Lawrence Kates

    发明人: Lawrence Kates

    IPC分类号: G01K13/00

    摘要: A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or more sensors and uses the sensor data to calculate a figure of merit related to the efficiency of the system. In one embodiment, the sensors include one or more of the following sensors: a suction line temperature sensor, a suction line pressure sensor, a suction line flow sensor, a hot gas line temperature sensor, a hot gas line pressure sensor, a hot gas line flow sensor, a liquid line temperature sensor, a liquid line pressure sensor, a liquid line flow sensor. In one embodiment, the sensors include one or more of an evaporator air temperature input sensor, an evaporator air temperature output sensor, an evaporator air flow sensor, an evaporator air humidity sensor, and a differential pressure sensor. In one embodiment, the sensors include one or more of a condenser air temperature input sensor, a condenser air temperature output sensor, and a condenser air flow sensor, an evaporator air humidity sensor. In one embodiment, the sensors include one or more of an ambient air sensor and an ambient humidity sensor.

    摘要翻译: 描述了监测制冷剂循环系统的操作的各个方面的实时监控系统。 在一个实施例中,系统包括处理器,其测量提供给制冷剂循环系统的功率,并从一个或多个传感器收集数据,并使用传感器数据来计算与系统效率相关的品质因数。 在一个实施例中,传感器包括以下传感器中的一个或多个:吸入管线温度传感器,吸入管线压力传感器,吸入管线流量传感器,热气体管线温度传感器,热气体管线压力传感器,热气体 线路流量传感器,液体线路温度传感器,液体线路压力传感器,液体线路流量传感器。 在一个实施例中,传感器包括蒸发器空气温度输入传感器,蒸发器空气温度输出传感器,蒸发器空气流量传感器,蒸发器空气湿度传感器和差压传感器中的一个或多个。 在一个实施例中,传感器包括冷凝器空气温度输入传感器,冷凝器空气温度输出传感器和冷凝器空气流量传感器,蒸发器空气湿度传感器中的一个或多个。 在一个实施例中,传感器包括一个或多个环境空气传感器和环境湿度传感器。

    Method and apparatus for monitoring refrigerant-cycle systems
    8.
    发明申请
    Method and apparatus for monitoring refrigerant-cycle systems 有权
    监测制冷剂循环系统的方法和装置

    公开(公告)号:US20060032245A1

    公开(公告)日:2006-02-16

    申请号:US10916222

    申请日:2004-08-11

    申请人: Lawrence Kates

    发明人: Lawrence Kates

    IPC分类号: G01K13/00 F25B39/04

    摘要: A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or more sensors and uses the sensor data to calculate a figure of merit related to the efficiency of the system. In one embodiment, the sensors include one or more of the following sensors: a suction line temperature sensor, a suction line pressure sensor, a suction line flow sensor, a hot gas line temperature sensor, a hot gas line pressure sensor, a hot gas line flow sensor, a liquid line temperature sensor, a liquid line pressure sensor, a liquid line flow sensor. In one embodiment, the sensors include one or more of an evaporator air temperature input sensor, an evaporator air temperature output sensor, an evaporator air flow sensor, an evaporator air humidity sensor, and a differential pressure sensor. In one embodiment, the sensors include one or more of a condenser air temperature input sensor, a condenser air temperature output sensor, and a condenser air flow sensor, an evaporator air humidity sensor. In one embodiment, the sensors include one or more of an ambient air sensor and an ambient humidity sensor.

    摘要翻译: 描述了监测制冷剂循环系统的操作的各个方面的实时监控系统。 在一个实施例中,系统包括处理器,其测量提供给制冷剂循环系统的功率,并从一个或多个传感器收集数据,并使用传感器数据来计算与系统效率相关的品质因数。 在一个实施例中,传感器包括以下传感器中的一个或多个:吸入管线温度传感器,吸入管线压力传感器,吸入管线流量传感器,热气体管线温度传感器,热气体管线压力传感器,热气体 线路流量传感器,液体线路温度传感器,液体线路压力传感器,液体线路流量传感器。 在一个实施例中,传感器包括蒸发器空气温度输入传感器,蒸发器空气温度输出传感器,蒸发器空气流量传感器,蒸发器空气湿度传感器和差压传感器中的一个或多个。 在一个实施例中,传感器包括冷凝器空气温度输入传感器,冷凝器空气温度输出传感器和冷凝器空气流量传感器,蒸发器空气湿度传感器中的一个或多个。 在一个实施例中,传感器包括一个或多个环境空气传感器和环境湿度传感器。

    Refrigeration heat reclaim
    9.
    发明授权

    公开(公告)号:US12025357B2

    公开(公告)日:2024-07-02

    申请号:US17007304

    申请日:2020-08-31

    IPC分类号: F25B49/02 F25B6/02 F25B45/00

    摘要: Provided are a refrigeration heat reclaim unit and method, comprising a heat exchanger, comprising a refrigerant inlet that receives a flow of refrigerant having a first state; a refrigerant outlet that outputs the flow of refrigerant having a second state; a water loop inlet that receives a flow of liquid at a first temperature; a water loop outlet that outputs the flow of liquid from the reclaim heat exchanger at a second temperature that is greater than the first temperature in response to the flow of refrigerant. The refrigeration reclaim unit also comprises a refrigerant flow control device having outputs to the refrigerant inlet and an air-cooled condenser, respectively for controlling the flow of refrigerant to at least one of the refrigerant inlet and the air-cooled condenser for maintaining a predetermined flow quality value at the refrigerant outlet.