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1.发明申请公开(公告)号：US20110167846A1
公开(公告)日：2011-07-14
申请号：US13006902
申请日：2011-01-14
CPC分类号： F25B49/027 , F24F3/153 , F25B5/02 , F25B2600/2511 , F25B2600/2517 , F25B2600/2519 , F25B2700/19 , F25B2700/197
摘要： A method for dehumidification and controlling system pressure in a refrigeration system includes providing a refrigeration system having a compressor, a condenser and an evaporator connected in a closed refrigerant loop. Each of the condenser and evaporator have a plurality of refrigerant circuits. A first heat transfer fluid is flowed over the condenser and a second heat transfer fluid is flowed over the evaporator. At least one of the refrigerant circuits of the condenser is isolated to provide a decreased amount of heat transfer area within the condenser and to increase the refrigerant pressure within the refrigeration system when the refrigerant pressure within the refrigeration system is at or below a predetermined pressure. At least one of the refrigerant circuits of the evaporator is isolated to dehumidify and maintain the temperature of the second heat transfer fluid at or above a predetermined temperature when dehumidification is required.
摘要翻译： 一种制冷系统中除湿和控制系统压力的方法包括提供一种具有压缩机，冷凝器和蒸发器的制冷系统，其连接在封闭的制冷剂回路中。 冷凝器和蒸发器中的每一个具有多个制冷剂回路。 第一传热流体流过冷凝器，第二传热流体流过蒸发器。 冷凝器的至少一个制冷剂回路被隔离以在冷凝器内提供减少的传热面积，并且当制冷系统内的制冷剂压力处于或低于预定压力时，增加制冷系统内的制冷剂压力。 当需要除湿时，蒸发器的至少一个制冷剂回路被隔离以对第二传热流体的温度进行除湿并保持在预定温度以上。
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公开(公告)号：US20100229579A1
公开(公告)日：2010-09-16
申请号：US12785063
申请日：2010-05-21
CPC分类号： F24F3/153 , F25B5/02 , F25B2400/0403 , F25B2600/2507
摘要： An HVAC system including a compressor, a condenser and an evaporator connected in a closed refrigerant loop. The evaporator includes a plurality of refrigerant circuits. The evaporator also includes at least one distributor configured to distribute and deliver refrigerant to each circuit of the plurality of circuits. The plurality of circuits are arranged into a first and second set of circuits. The evaporator also includes a valve configured and disposed to isolate the first set of circuits from refrigerant flow from the condenser and provide flow of refrigerant from the compressor in a dehumidification operation of the HVAC system.
摘要翻译： HVAC系统包括连接在封闭的制冷剂回路中的压缩机，冷凝器和蒸发器。 蒸发器包括多个制冷剂回路。 蒸发器还包括至少一个配置成将制冷剂分配并输送到多个回路中的每个回路的分配器。 多个电路被布置成第一和第二组电路。 蒸发器还包括构造和设置为将第一组回路与来自冷凝器的制冷剂流隔离并且在HVAC系统的除湿操作中提供来自压缩机的制冷剂流动的阀。
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公开(公告)号：US07559207B2
公开(公告)日：2009-07-14
申请号：US11159878
申请日：2005-06-23
IPC分类号： F25B41/00
CPC分类号： F25B49/027 , F25B2600/2517 , F25B2600/2519 , F25B2700/19
摘要： A method and system for controlling refrigerant pressure in an HVAC system. The method includes providing a compressor, a condenser and an evaporator connected in a closed refrigerant loop. The condenser has a header arrangement capable of distributing refrigerant to a plurality of refrigerant circuits within the condenser. The header arrangement also is capable of selectively isolating at least one of the circuits from refrigerant flow. Refrigerant pressure is sensed at a predetermined location in the refrigeration system. At least one of the circuits is isolated when the refrigerant pressure is less than or equal to a predetermined pressure.
摘要翻译： 一种用于控制HVAC系统中的制冷剂压力的方法和系统。 该方法包括提供连接在封闭制冷剂回路中的压缩机，冷凝器和蒸发器。 冷凝器具有能够将制冷剂分配到冷凝器内的多个制冷剂回路的集管装置。 集管装置还能够选择性地将至少一个回路与制冷剂流隔离。 在制冷系统中的预定位置处感测制冷剂压力。 当制冷剂压力小于或等于预定压力时，至少一个电路被隔离。
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公开(公告)号：US07290600B2
公开(公告)日：2007-11-06
申请号：US11248536
申请日：2005-10-12
IPC分类号： F25B29/00
CPC分类号： F25B13/00 , F25B47/022 , F25B2313/0313 , F25B2313/0315 , F25B2600/2501 , F25B2700/2106
摘要： A system for defrosting an air-to-air heat pump system is disclosed. A bypass loop transfers refrigerant at a higher temperature and pressure than is normally cycled through the outdoor unit to an outdoor coil to defrost ice on the outdoor coil. The bypass loop includes a valve movable between closed and open positions. A sensor monitors a preselected condition indicative of outdoor coil performance. A controller communicates with the valve and the sensor. Once the controller determines that a preselected set point of a preselected condition indicative of deteriorating performance has been reached, the controller sends a signal to open the valve, allowing warm refrigerant to bypass expansion valves and flow to the outdoor unit to defrost the outdoor unit. Once defrosting is accomplished, the valve can be moved to a closed position to resume normal operation of the heat pump unit.
摘要翻译： 公开了一种用于对空气 - 空气热泵系统进行除霜的系统。 旁路回路将制冷剂在比通常室外单元循环的高的温度和压力下传递到户外线圈以对室外线圈上的冰进行除霜。 旁路回路包括可在闭合位置和打开位置之间移动的阀。 传感器监测指示室外线圈性能的预选条件。 控制器与阀和传感器通信。 一旦控制器确定已经达到指示性能恶化的预选状态的预选设定点，则控制器发送信号以打开阀门，允许热的制冷剂旁路膨胀阀并流到室外单元以除霜室外单元。 一旦完成除霜，阀可以移动到关闭位置，以恢复热泵单元的正常运行。
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公开(公告)号：US07845185B2
公开(公告)日：2010-12-07
申请号：US11165106
申请日：2005-06-23
IPC分类号： F25B41/00
CPC分类号： F24F3/153 , F25B5/02 , F25B2400/0403 , F25B2600/2507
摘要： An HVAC system including a compressor, a condenser and an evaporator arrangement connected in a closed refrigerant loop. The evaporator arrangement includes a plurality of refrigerant circuits. The evaporator arrangement also includes at least one distributor configured to distribute and deliver refrigerant to each circuit of the plurality of circuits. The plurality of circuits are arranged into a first and second set of circuits. The evaporator arrangement also includes a valve configured and disposed to isolate the first set of circuits from refrigerant flow from the condenser and provide flow of refrigerant from the compressor in a dehumidification operation of the HVAC system.
摘要翻译： 一种HVAC系统，包括压缩机，冷凝器和连接在闭合制冷剂回路中的蒸发器装置。 蒸发器装置包括多个制冷剂回路。 蒸发器装置还包括至少一个配置成将制冷剂分配并输送到多个回路中的每个回路的分配器。 多个电路被布置成第一和第二组电路。 蒸发器装置还包括构造和设置为将第一组回路与来自冷凝器的制冷剂流隔离并且在HVAC系统的除湿操作中提供来自压缩机的制冷剂流动的阀。
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