Heat pump apparatus
    42.
    发明授权
    Heat pump apparatus 有权
    热泵设备

    公开(公告)号:US09557085B2

    公开(公告)日:2017-01-31

    申请号:US13384680

    申请日:2010-01-15

    摘要: In a heat pump apparatus, it is aimed to enhance efficiency of a defrost operation by reducing a loss of heat radiation during the defrost operation and reducing a compressor input during the defrost operation. The heat pump apparatus includes a main refrigerant circuit in which a compressor, a first heat exchanger, an expansion mechanism, and a second heat exchanger are connected sequentially, and also includes a bypass circuit including an on-off valve and providing a connection by bypassing the expansion mechanism. The main refrigerant circuit includes a four-way valve that switches between a heating operation and the defrost operation by switching an order in which the refrigerant circulates through the main refrigerant circuit. The main refrigerant circuit also includes a first temperature detection unit and a second temperature detection unit. Based on values detected by these temperature detection units, a degree of superheat of the first heat exchanger during the defrost operation is computed. When the heating operation is switched to the defrost operation, the heat pump apparatus increases a circulation amount of the refrigerant circulating through the refrigerant circuit by opening the on-off valve, and also controls an operation frequency of the compressor such that the degree of superheat is at a predetermined target value.

    摘要翻译: 在热泵装置中,旨在通过减少除霜操作期间的热辐射损失来提高除霜操作的效率,并且在除霜操作期间减少压缩机输入。 热泵装置包括:主制冷剂回路,其中压缩机,第一热交换器,膨胀机构和第二热交换器依次连接,并且还包括旁通回路,旁路回路包括开关阀,并通过旁路提供连接 扩张机制。 主制冷剂回路包括四通阀,其通过切换制冷剂通过主制冷剂回路循环的顺序而在加热操作和除霜操作之间切换。 主制冷剂回路还包括第一温度检测单元和第二温度检测单元。 基于这些温度检测单元检测出的值,算出除霜运转时的第一热交换器的过热度。 当加热操作切换到除霜操作时,热泵装置通过打开开关阀来增加通过制冷剂回路循环的制冷剂的循环量,并且还控制压缩机的操作频率使得过热度 处于预定的目标值。

    Refrigerating device
    43.
    发明授权
    Refrigerating device 有权
    制冷装置

    公开(公告)号:US09541313B2

    公开(公告)日:2017-01-10

    申请号:US13259290

    申请日:2010-03-11

    IPC分类号: F25B31/00

    摘要: A refrigerating device that forms a refrigerating cycle in which a plurality of outdoor machines 1a and 1b provided at least with compressors 2a and 2b, condensers 4a and 4b, and accumulators 5a and 5b respectively and an indoor machine 20 provided with decompressing means 21 and an evaporator 22 are connected in parallel by piping, having oil return pipes 13a and 13b that return refrigerator oil stored in the accumulators into the compressors, an oil equalizing pipe 10 that connects the accumulators to each other, and a controller 30 that controls an operation of the compressor and on/off of an electromagnetic valve 12a deposed on the oil equalizing pipe.

    摘要翻译: 形成多个至少设置有压缩机2a,2b,电容器4a,4b以及蓄电池5a,5b的室外机1a和1b以及设置有减压装置21的室内机20的制冷循环的制冷装置, 蒸发器22通过管道并联连接,具有将储存在蓄能器中的冷冻机油返回到压缩机中的回油管13a和13b,将蓄能器彼此连接的均油管10和控制器30, 压缩机和放电在均油管上的电磁阀12a的开/关。

    Refrigeration cycle device and method of controlling the same
    44.
    发明授权
    Refrigeration cycle device and method of controlling the same 有权
    制冷循环装置及其控制方法

    公开(公告)号:US09163865B2

    公开(公告)日:2015-10-20

    申请号:US12995343

    申请日:2008-11-11

    摘要: A refrigeration cycle device 100 where a combustible refrigerant circulates includes a bypass pipe 5 that is connected so that part of the refrigerant that flows through a circulation pipe extending from a condenser 2 to a flow control valve 3 bypasses the flow control valve 3 and an evaporator 4; a bypass flow control valve 6 that controls the amount of the refrigerant flowing through the bypass pipe 5; a heat exchanger 7 that allows heat exchange between the refrigerant that flows through the bypass pipe 5 after flowing out of the bypass flow control valve 6 and the refrigerant that flows through the circulation pipe after flowing out of the condenser 2; and a subcooling degree sensor T73 that detects the subcooling degree of the refrigerant at the inlet of the flow control valve 3. At least either the flow control valve 3 or the bypass flow control valve 6 is controlled so that the subcooling degree of the refrigerant at the inlet of the flow control valve 3 is equal to or greater than or a predetermined value.

    摘要翻译: 可燃性制冷剂循环的制冷循环装置100包括旁通管5,旁通管5被连接成使得流过从冷凝器2延伸到流量控制阀3的循环管的制冷剂的一部分绕过流量控制阀3和蒸发器 4; 旁通流量控制阀6,其控制流过旁通管5的制冷剂的量; 热交换器7,其在从旁路流量控制阀6流出之后流过旁通管5的制冷剂与从冷凝器2流出之后流过循环管的制冷剂进行热交换; 以及过冷度传感器T73,其检测在流量控制阀3的入口处的制冷剂的过冷度。流量控制阀3或旁通流量控制阀6中的至少一个被控制,使得制冷剂的过冷度 流量控制阀3的入口等于或大于或等于预定值。

    REFRIGERATION AND AIR-CONDITIONING APPARATUS AND HUMIDITY CONTROL DEVICE
    45.
    发明申请
    REFRIGERATION AND AIR-CONDITIONING APPARATUS AND HUMIDITY CONTROL DEVICE 有权
    制冷和空气调节装置和湿度控制装置

    公开(公告)号:US20140230479A1

    公开(公告)日:2014-08-21

    申请号:US14349098

    申请日:2011-10-28

    IPC分类号: F25B30/02

    摘要: An air-conditioning system includes a pump that sends, to an evaporator, a cooling fluid that exchanges heat with a refrigerant at the evaporator, and a first heat exchanger that exchanges heat between ambient air and the cooling fluid that has undergone the heat exchange at the evaporator. A sensible heat exchange cycle is formed by annularly connecting the evaporator, the heat exchanger, and the pump by using a pipe. This system is also includes an air-sending unit that sends air to a second heat exchanger, moisture absorbing-and-desorbing devices that are provided at a passage of the air sent by the air-sending unit and that are disposed in front of and behind the first heat exchanger, and an air-path switching device that reverses a passing direction of air passing through the moisture absorbing-and-desorbing device, the first heat exchanger, and the moisture absorbing-and-desorbing device.

    摘要翻译: 空调系统包括:泵,其向蒸发器发送与蒸发器中的制冷剂进行热交换的冷却流体;以及第一热交换器,其在环境空气和经过热交换的冷却流体之间进行热交换 蒸发器。 通过使用管道环形连接蒸发器,热交换器和泵来形成明显的热交换循环。 该系统还包括将空气送至第二热交换器的送风单元,设置在由送风单元送出的空气通道的吸湿解吸装置, 在第一热交换器之后,以及使通过吸湿解吸装置,第一热交换器和吸湿解吸装置的空气的通过方向反转的风路切换装置。

    HUMIDITY CONTROL APPARATUS AND AIR-CONDITIONING SYSTEM
    46.
    发明申请
    HUMIDITY CONTROL APPARATUS AND AIR-CONDITIONING SYSTEM 有权
    湿度控制装置和空调系统

    公开(公告)号:US20140157806A1

    公开(公告)日:2014-06-12

    申请号:US14234765

    申请日:2011-07-27

    IPC分类号: F24F11/00

    摘要: A humidity control apparatus and an air-conditioning system are capable of controlling the latent heat processing amount and the sensible heat processing amount in accordance with an indoor heat load without decreasing the operation efficiency. Every time an air route is switched to an air route A or an air route B, the route maintenance time for the switched air route is set on the basis of the heat load within a dehumidification target space, and switching of switching devices is controlled such that the set route maintenance time is ensured.

    摘要翻译: 湿度控制装置和空调系统能够根据室内热负荷来控制潜热处理量和显热处理量,而不降低操作效率。 每当空中路线切换到航路A或航路B时,根据除湿目标空间内的热负荷来设定切换航路的路线维护时间,切换装置的切换被控制为 确保路由维护时间。

    Heat pump apparatus
    47.
    发明授权
    Heat pump apparatus 有权
    热泵设备

    公开(公告)号:US08745999B2

    公开(公告)日:2014-06-10

    申请号:US13057362

    申请日:2009-03-05

    IPC分类号: F25D21/06

    摘要: A heat pump apparatus includes a refrigerant circuit in which a compressor, a condenser, expansion means, and an evaporator are serially connected. Condensation temperature detection means that detects a saturation temperature of the condenser, and evaporation temperature detection means that detects the saturation temperature of the evaporator are provided. Operation efficiency is estimated by a value obtained by dividing heating ability estimated from a detection value of the condensation temperature detection means by a difference between a detection value of condensation temperature detection means and that of evaporation temperature detection means or dissipation power estimated by the difference.

    摘要翻译: 热泵装置包括其中压缩机,冷凝器,膨胀装置和蒸发器串联连接的制冷剂回路。 冷凝温度检测装置检测冷凝器的饱和温度,并且提供检测蒸发器的饱和温度的蒸发温度检测装置。 通过将冷凝温度检测装置的检测值估计出的加热能量除以冷凝温度检测装置的检测值与蒸发温度检测装置的检测值之间的差值或由该差值估计的耗散功率来估计运算效率。

    MULTI AIR-CONDITIONING APPARATUS
    48.
    发明申请
    MULTI AIR-CONDITIONING APPARATUS 有权
    多空调设备

    公开(公告)号:US20140033749A1

    公开(公告)日:2014-02-06

    申请号:US13565189

    申请日:2012-08-02

    IPC分类号: F25B49/00

    摘要: A correspondence determination operation is performed. The correspondence determination operation differs a direction of distribution or a flow rate of a refrigerant flowing in one or some of use units among a plurality of use units to that of the other use units and determines, on the basis of a refrigerant temperature of the use unit, a location of a non-correspondence between a branch port that is connected to the use unit with refrigerant pipes and a set branch port that is obtained in accordance with the wire connection.

    摘要翻译: 执行对应确定操作。 对应确定操作将在多个使用单元中的一个或一些使用单元中流动的制冷剂的流动方向与其他使用单元的流动方向不同,并且基于使用的制冷剂温度 单元,连接到使用单元的分支端口与制冷剂管道之间的不对应的位置以及根据电线连接获得的设定分支端口。

    REFRIGERATION CYCLE APPARATUS
    49.
    发明申请
    REFRIGERATION CYCLE APPARATUS 有权
    制冷循环装置

    公开(公告)号:US20130167567A1

    公开(公告)日:2013-07-04

    申请号:US13822726

    申请日:2011-10-04

    IPC分类号: F25B49/02

    摘要: A refrigeration cycle apparatus includes low-pressure side pressure detecting means for detecting the pressure of a refrigerant being sucked by a compressor, suction refrigerant temperature detecting means for detecting the temperature of the refrigerant being sucked by the compressor, frequency detecting means for detecting the operation frequency of the compressor, cooling target fluid inflow temperature detecting means for detecting the temperature of a cooling target fluid flowing in an evaporator, cooling target fluid outflow temperature detecting means for detecting the temperature of the cooling target fluid flowing out of the evaporator, and flow rate calculating means (measuring unit, computing unit, and storage unit) for calculating the absolute quantity of the flow rate of the cooling target fluid flowing in the evaporator using a value detected by each detecting means.

    摘要翻译: 一种制冷循环装置,包括:低压侧压检测装置,用于检测由压缩机吸入的制冷剂的压力;吸入制冷剂温度检测装置,用于检测由压缩机吸入的制冷剂的温度;频率检测装置,用于检测操作 压缩机的频率,用于检测在蒸发器中流动的冷却目标流体的温度的冷却目标流体流入温度检测装置,用于检测从蒸发器流出的冷却目标流体的温度的冷却目标流体流出温度检测装置,以及流过 速率计算装置(测量单元,计算单元和存储单元),用于使用由每个检测装置检测的值来计算在蒸发器中流动的冷却目标流体的流量的绝对量。