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    Method and apparatus for evaluating the energy efficiency of a refrigeration machine and/or heat pump
    31.
    发明公开
    Method and apparatus for evaluating the energy efficiency of a refrigeration machine and/or heat pump 审中-公开
    方法和装置用于评估的冷冻机和/或热泵的能量效率

    公开(公告)号：EP2998667A1

    公开(公告)日：2016-03-23

    申请号：EP14003226.9

    申请日：2014-09-17

    申请人： Hochschule Biberach

    发明人： Becker, Martin ,  Köberle, Thomas

    IPC分类号： F25B49/00 ,  F25B49/02

    CPC分类号： F25B49/005 ,  F25B49/02 ,  F25B2341/0653 ,  F25B2500/19 ,  F25B2700/191 ,  F25B2700/193 ,  F25B2700/195 ,  F25B2700/197 ,  F25B2700/21175 ,  Y02B30/72

    摘要： In a method for evaluating the energy efficiency of a refrigeration machine (1; 2) and/or a heat pump (3; 4), wherein a working fluid of the refrigeration machine (1; 2) and/or heat pump is running through an expansion valve (40; 40A, 40B, 40C) at one point of a thermodynamic cycle, at different positions of the thermodynamic cycle, at least one thermodynamic parameter ( T entrance , p entrance , p exit , T superheat , p superheat , Tcompressor, p compressor ) of the working fluid is detected. The mass flow ( ṁ F ) of the working fluid is determined using a classification (m) of the opening of the expansion valve (40; 40A, 40B, 40C) and some of the detected thermodynamic parameters ( T entrance , p entrance , p exit ) of the working fluid. A cooling power and/or a heating power ( Q̇ ) of the refrigeration machine (1; 2) and/or heat pump (3; 4) is determined as a function of the mass flow ( ṁ F ) of the working fluid. The energy efficiency of the refrigeration machine and/or heat pump (3; 4) is evaluated by comparing the cooling power and/or heating power (Q) to an electrical power (P el ) used to power the refrigeration machine and/or heat pump.

    摘要翻译： 在用于评价的制冷机器的能量效率的方法（1，2）和/或热泵（3; 4），worin制冷机的工作流体（1，2）和/或热泵，通过运行 上膨胀阀（40; 40A，40B，40C）在热力学循环中的一个点，在热力循环的不同位置，至少一个热力学参数（T入口，对入口，对出口，T过热，对过热，Tcompressor 时，工作流体的对压缩机）被检测到。 和一些所检测的热力学参数（T入口，对入口，P;工作流体的质量流量（米F）是使用膨胀阀（40A，40B，40C 40）的开口的分类（米）的确定性开采 工作流体的出口）。 冷却功率和/或冷冻机的加热功率（Q）（1; 2）和/或热泵（3; 4）被确定为工作流体的质量流量（米F）的函数。 制冷机器和/或热泵的能量效率（3; 4）通过在电功率（P EL）的冷却功率和/或热功率（Q）进行比较来评估用于将制冷机和/或热动力 泵。

    MULTIPLE AIR CONDITIONER
    35.
    发明公开
    MULTIPLE AIR CONDITIONER 审中-公开
    MEHRFACH-KLIMAANLAGE

    公开(公告)号：EP2416090A1

    公开(公告)日：2012-02-08

    申请号：EP10758493.0

    申请日：2010-03-24

    申请人： Mitsubishi Heavy Industries, Ltd.

    发明人： YASUDA, Tatsuhiro ,  ISOZUMI, Shinichi ,  MITOMA, Keisuke ,  MAENO, Masashi ,  WATANABE, Satoshi ,  UEFUJI, Yoichi

    IPC分类号： F25B1/00 ,  F24F11/02

    CPC分类号： F25B41/067 ,  F24F11/84 ,  F25B13/00 ,  F25B41/062 ,  F25B2313/005 ,  F25B2313/006 ,  F25B2313/0233 ,  F25B2313/02741 ,  F25B2341/066 ,  F25B2500/01 ,  F25B2500/06 ,  F25B2600/2513 ,  F25B2600/2519 ,  F25B2700/191

    摘要： A liquid head pressure applied to an electronic expansion valve disposed in front (at the inlet) of an indoor heat exchanger is reduced so as to prevent failure in opening and closing (operation failure) of the electronic expansion valve. In a multi-unit air conditioner (1) including a single outdoor unit (2) and a plurality of indoor units (3) disposed below the outdoor unit (2) and connected to the outdoor unit (2) via a coolant pipe (8), a decompressing mechanism (7) including three electromagnetic on-off valves (22, 23, 24) and three capillary tubes (25, 26, 27) having different lengths is provided near an outlet, for cooling operation, of the outdoor unit (2), and a unit constituted of each electromagnetic on-off valve and each capillary tube connected to the electromagnetic on-off valve is arranged in parallel with the coolant pipe (8).

    摘要翻译： 施加到设置在室内热交换器的前方（在入口处）的电子膨胀阀的液体头压力减小，以防止电子膨胀阀的打开和关闭（操作失效）的故障。 在包括单个室外单元（2）和设置在室外单元（2）下方的多个室内单元（3）的多单元空调（1）中，并且经由冷却剂管（8）连接到室外单元 ），在室外机的出口附近设置包括三个电磁开关阀（22,23,24）和三个具有不同长度的毛细管（25,26,27）的减压机构（7），用于制冷运行 （2），并且由每个电磁开关阀和连接到电磁开关阀的每个毛细管构成的单元与冷却剂管（8）平行布置。

    AIR CONDITIONER
    36.
    发明公开
    AIR CONDITIONER 审中-公开
    冷气机

    公开(公告)号：EP2290304A1

    公开(公告)日：2011-03-02

    申请号：EP09729048.0

    申请日：2009-03-31

    申请人： Mitsubishi Electric Corporation

    发明人： HOKAZONO, Keisuke ,  HATOMURA, Takeshi ,  MORIMOTO, Hiroyuki

    IPC分类号： F25B1/00 ,  F25B29/00

    CPC分类号： F25B9/008 ,  F25B13/00 ,  F25B2309/061 ,  F25B2313/006 ,  F25B2313/0231 ,  F25B2313/02741 ,  F25B2341/0662 ,  F25B2400/13 ,  F25B2600/11 ,  F25B2600/2509 ,  F25B2600/2513 ,  F25B2700/191

    摘要： Provided is an air conditioner capable of improving a COP in simultaneous heating and cooling operation. The air conditioner is an air conditioning system in which an outdoor unit (100) and a plurality of indoor units (301 to 303) are connected through a branch controller (200), and a supercritical fluid is used, to thereby establish a single refrigerating cycle. The outdoor unit (100) and the branch controller (200) are connected through two pipes of a high-pressure pipe (400) and a low-pressure pipe (500). The branch controller (200) and each of the plurality of indoor units (301 to 303) are connected through two pipes of a high-pressure pipe (700) and a low-pressure pipe (800). The branch controller (200) includes a double-pipe heat exchanger (240) for heat exchange between a medium-pressure two-phase refrigerant and a low-pressure two-phase refrigerant. The medium-pressure two-phase refrigerant is relatively high in temperature and flows into the double-pipe heat exchanger after branching a refrigerant flowing from the outdoor unit toward the plurality of indoor units, and joining together a refrigerant decompressed by a first expansion valve (211) and a refrigerant flowing from the plurality of indoor units. The low-pressure two-phase refrigerant is relatively low in temperature and flows out of the double-pipe heat exchanger toward the outdoor unit after branching a refrigerant flowing out of the double-pipe heat exchanger toward the plurality of indoor units, and decompressing a part of the branched refrigerant by a second expansion valve (212).

    摘要翻译： 提供一种能够在同时加热和冷却操作中改进COP的空调。 空气调节装置是通过分支控制器（200）连接室外机组（100）和多个室内机组（301〜303），并使用超临界流体的空调装置， 周期。 室外机组100和分支控制器200通过高压配管400和低压配管500这两个配管连接。 分支控制器（200）和多个室内机组（301〜303）分别通过高压配管（700）和低压配管（800）这两根配管连接。 分支控制器（200）包括用于在中压两相制冷剂和低压两相制冷剂之间进行热交换的双管热交换器（240）。 中压两相制冷剂温度较高，并且在将从室外单元朝向多个室内单元流动的制冷剂分流并且将由第一膨胀阀（第二膨胀阀）减压的制冷剂接合在一起之后流入双管热交换器 211）和从多个室内单元流出的制冷剂。 低压二相制冷剂的温度比较低，在从双管热交换器流出的制冷剂向多个室内单元分流之后，从双管热交换器向室外单元流出， 通过第二膨胀阀（212）分支制冷剂的一部分。

    REFRIGERATION DEVICE
    37.
    发明公开
    REFRIGERATION DEVICE 有权
    制冷设备

    公开(公告)号：EP2068097A1

    公开(公告)日：2009-06-10

    申请号：EP07793061.8

    申请日：2007-08-28

    申请人： Daikin Industries, Ltd.

    发明人： KURIHARA, Toshiyuki ,  KASAHARA, Shinichi

    IPC分类号： F25B1/00 ,  F25B43/00 ,  F25B11/02

    CPC分类号： F25B9/008 ,  F25B5/02 ,  F25B7/00 ,  F25B13/00 ,  F25B40/00 ,  F25B40/02 ,  F25B2309/061 ,  F25B2341/0662 ,  F25B2400/16 ,  F25B2600/17 ,  F25B2600/2513 ,  F25B2700/191 ,  F25B2700/2102

    摘要： An object of the present invention is to prevent a refrigerant from reaching a state near the critical point when the refrigerant is expanded to a state near the saturation line by a first expansion mechanism in a refrigeration device that comprises a refrigerant circuit in which a compression mechanism, a radiator, a refrigerant cooling unit, the first expansion mechanism, a liquid receiver, a second expansion mechanism, and an evaporator are connected in sequence. The refrigeration device (1, 101, 201, 301) according to the present invention is provided with a control unit (23, 34a, 34b, 223), and a refrigerant circuit in which a compression mechanism (11), a radiator (13), a refrigerant cooling unit (14, 214), a first expansion mechanism (15), a liquid receiver (16), a second expansion mechanism (17, 33a, 33b), and an evaporator (31, 31 a, 31 b) are connected in sequence. The control unit performs refrigerant cooling control whereby the refrigerant is cooled by the refrigerant cooling unit so that the state of the refrigerant that has flowed out from the first expansion mechanism is near the saturation line and not near the critical point.

    摘要翻译： 本发明的目的在于，通过具有制冷剂回路的制冷装置中的第一膨胀机构，使制冷剂膨胀至饱和线附近的状态，从而防止制冷剂达到临界点附近的状态， ，散热器，制冷剂冷却单元，第一膨胀机构，储液器，第二膨胀机构和蒸发器依次连接。 本发明的制冷装置（1,101,201,301）具备控制部（23,34a，34b，223）和制冷剂回路，在该制冷剂回路中压缩机构（11），散热器（13 ），制冷剂冷却单元（14,214），第一膨胀机构（15），储液器（16），第二膨胀机构（17,33a，33b）以及蒸发器（31,31a，31b） ）依次连接。 控制单元执行制冷剂冷却控制，由此制冷剂被制冷剂冷却单元冷却，使得从第一膨胀机构流出的制冷剂的状态接近饱和线并且不在临界点附近。