REFRIGERANT LEAKAGE DETECTION
    71.
    发明申请
    REFRIGERANT LEAKAGE DETECTION 审中-公开
    制冷剂泄漏检测

    公开(公告)号:WO2007022779A1

    公开(公告)日:2007-03-01

    申请号:PCT/DK2006/000460

    申请日:2006-08-24

    CPC classification number: F25B49/005 F25B2400/16 F25B2500/222 F25B2600/05

    Abstract: The present invention relates to a refrigeration system with a detector for detection of refrigerant leakage, the system comprising a flow circuit for recirculation of a refrigerant and including a compressor for generation of a refrigerant flow from a low-pressure side to a high-pressure side of the compressor and, in the order defined by the flow direction, connected in series with a condenser for cooling of the refrigerant towards the ambient temperature, a receiver for accommodation of refrigerant, a pressure reducing device separating the low-pressure side and the high pressure side of the compressor, and a first evaporator for evaporation of the refrigerant, and a weight transducer mounted in operational contact with the receiver for generation of an output signal corresponding to the weight of the receiver.

    Abstract translation: 本发明涉及一种具有用于检测制冷剂泄漏的检测器的制冷系统,该系统包括用于再循环制冷剂的流动回路,并且包括用于产生从低压侧到高压侧的制冷剂流的压缩机 的压缩机,并且按照流动方向限定的顺序与冷凝器串联连接以冷却制冷剂朝向环境温度,用于容纳制冷剂的接收器,分离低压侧和高压侧的减压装置 压缩机的压力侧和用于蒸发制冷剂的第一蒸发器,以及安装在与接收器操作接触的重量传感器,用于产生对应于接收器的重量的输出信号。

    APPARATUS FOR COOLING SYSTEMS
    72.
    发明申请
    APPARATUS FOR COOLING SYSTEMS 审中-公开
    冷却系统设备

    公开(公告)号:WO2007012855A1

    公开(公告)日:2007-02-01

    申请号:PCT/GB2006/002799

    申请日:2006-07-26

    Abstract: Apparatus for detecting the escape of a fluid from a cooling system having a passage (1, 2, 3), comprises: a housing (4, 5) defining a volume abutting one or more portions of said passage; and sensor means (6, 7) adapted to detect the presence of said fluid within said volume; and wherein the housing is adapted to collect the escaped fluid such that the sensor can detect the escaped fluid before the operation of the cooling system is compromised. The passage of the cooling system may be a pipe of a heat exchange circuit, and the fluid may be a heat transfer fluid such as carbon dioxide. The apparatus may be adapted to signal to alarm means or other monitoring systems on detection of escaped fluid.

    Abstract translation: 用于检测来自具有通道(1,2,3)的冷却系统的流体逸出的装置包括:壳体(4,5),其限定与所述通道的一个或多个部分相邻的体积; 以及适于检测所述体积内所述流体的存在的传感器装置(6,7) 并且其中所述壳体适于收集所述逸出的流体,使得所述传感器可以在所述冷却系统的操作受损之前检测所述逸出的流体。 冷却系统的通道可以是热交换回路的管道,并且流体可以是诸如二氧化碳的传热流体。 该装置可以适于在检测到逃逸流体时向报警装置或其他监视系统发出信号。

    VALVE PREVENTING UNPOWERED REVERSE RUN AT SHUTDOWN
    73.
    发明申请
    VALVE PREVENTING UNPOWERED REVERSE RUN AT SHUTDOWN 审中-公开
    阀门防止未经授权的逆向运行

    公开(公告)号:WO2006031433A3

    公开(公告)日:2007-02-01

    申请号:PCT/US2005030803

    申请日:2005-08-31

    Abstract: An inventive method of preventing unpowered reverse rotation in a compressor includes the steps of placing a solenoid valve at a location near compressor discharge. The valve is preferably actuated soon after the power to the motor is cut off, blocking the flow of refrigerant from expanding back toward the compression chambers of the compressor. The compressor is disclosed as a scroll compressor, but may also be a screw compressor. These two types of compressors are susceptible to undesirable unpowered reverse rotation when compressed refrigerant re-expands through the compression elements from the compressor discharge into the compressor suction. By blocking the flow of refrigerant, this unpowered reverse rotation is prevented. A high pressure switch can be positioned directly upstream of the solenoid valve to immediately stop the compressor if the valve malfunctions and blocks the flow of refrigerant during normal compressor operation.

    Abstract translation: 防止压缩机中无动力反向旋转的创新方法包括将电磁阀放置在压缩机排放附近的位置的步骤。 优选地,在电动机的动力被切断之后,阀被很快地启动,阻止制冷剂的流动朝向压缩机的压缩室向后扩展。 压缩机被公开为涡旋式压缩机,但是也可以是螺杆式压缩机。 当压缩的制冷剂通过压缩元件从压缩机排放物再膨胀进入压缩机抽吸时,这两种类型的压缩机容易受到不需要的未动力反向旋转。 通过阻止制冷剂的流动,防止了这种无动力的反向旋转。 高压开关可以直接位于电磁阀的上游,以在阀门故障时阻止压缩机,并在正常压缩机运行期间阻止制冷剂的流动。

    HOT GAS BYPASS THROUGH FOUR-WAY REVERSING VALVE
    74.
    发明申请
    HOT GAS BYPASS THROUGH FOUR-WAY REVERSING VALVE 审中-公开
    通过四路反向阀的热气旁路

    公开(公告)号:WO2006028799A3

    公开(公告)日:2007-02-01

    申请号:PCT/US2005030804

    申请日:2005-08-31

    Abstract: A heat pump four-way valve selectively routes refrigerant to either indoor or outdoor heat exchanger. The position of the plunger inside the valve can also be adjusted to selectively provide a hot gas by-pass function by routing a portion of refrigerant from discharge to suction line. The four-way valve preferably is positioned such that it can either operate in a conventional heat pump mode, or can be positioned to perform an unloaded hot gas by-pass function.

    Abstract translation: 热泵四通阀选择性地将制冷剂输送到室内或室外热交换器。 也可以调节柱塞在阀内的位置,以便选择性地提供热气旁通功能,通过将一部分制冷剂从排出路径引导到吸入管线。 四通阀优选地定位成使得其可以以常规的热泵模式操作,或者可以被定位成执行无负载的热气旁通功能。

    MAXIMUM OPERATING PRESSURE CONTROL FOR SYSTEMS WITH FLOAT VALVE METERING DEVICES
    75.
    发明申请
    MAXIMUM OPERATING PRESSURE CONTROL FOR SYSTEMS WITH FLOAT VALVE METERING DEVICES 审中-公开
    具有浮阀测量装置的系统的最大操作压力控制

    公开(公告)号:WO2006132610A1

    公开(公告)日:2006-12-14

    申请号:PCT/US2005/019306

    申请日:2005-06-02

    Abstract: A chiller system (10) includes a compressor (12), a condenser (14), a cooler (20), a bubbler tube (22) and a float valve (18) within the condenser (14). A solenoid valve (26) is disposed within the bubbler tube (22) and is adapted to selectively open and close the float valve (18) such that a refrigerant flow to the cooler (20) is throttled. The throttled refrigerant flow results in a reduction in system pressure which further results in a higher viscosity oil delivery to the compressor (12) by an oil management system (30).

    Abstract translation: 冷凝器系统(10)包括在冷凝器(14)内的压缩机(12),冷凝器(14),冷却器(20),起泡器管(22)和浮阀(18)。 电磁阀(26)设置在起泡管(22)内并且适于选择性地打开和关闭浮阀(18),使得流向冷却器(20)的制冷剂流被节流。 节流的制冷剂流导致系统压力的降低,这进一步导致通过油管理系统(30)向油压机(12)输送更高粘度的油。

    METHOD OF DETERMINING OPTIMAL COEFFICIENT OF PERFORMANCE IN A TRANSCRITICAL VAPOR COMPRESSION SYSTEM
    76.
    发明申请
    METHOD OF DETERMINING OPTIMAL COEFFICIENT OF PERFORMANCE IN A TRANSCRITICAL VAPOR COMPRESSION SYSTEM 审中-公开
    确定传统蒸汽压缩系统性能的最佳系数的方法

    公开(公告)号:WO2006112924A2

    公开(公告)日:2006-10-26

    申请号:PCT/US2006/005158

    申请日:2006-02-14

    Inventor: PARK, Young, K.

    Abstract: The high side pressure of a vapor compression system is selected to optimize the coefficient of performance by measuring the gas cooler exit temperature with a temperature sensor. For any gas cooler exit temperature, a single optimal high side pressure optimizes the coefficient of performance. The optimal high side pressure for each gas cooler exit temperature is preset into a control and is based on data obtained by previous testing. A temperature sensor measures the gas cooler exit temperature. The control determines the optimal high side pressure based solely on the gas cooler exit temperature and the data preset into the control.

    Abstract translation: 选择蒸汽压缩系统的高侧压力以通过用温度传感器测量气体冷却器出口温度来优化性能系数。 对于任何气体冷却器出口温度,单个最佳高侧压力优化了性能系数。 每个气体冷却器出口温度的最佳高压侧压力预先设定在一个控制中,并且基于先前测试获得的数据。 温度传感器测量气体冷却器出口温度。 该控制仅基于气体冷却器出口温度和预设到控制中的数据来确定最佳高压侧压力。

    冷凍装置
    78.
    发明申请
    冷凍装置 审中-公开
    冷冻装置

    公开(公告)号:WO2006057224A1

    公开(公告)日:2006-06-01

    申请号:PCT/JP2005/021379

    申请日:2005-11-21

    Abstract:  第1ノンインバータ圧縮機(2B)は、第3四路切換弁(3C)の切換により、インバータ圧縮機(2A)および第2ノンインバータ圧縮機(2C)の一方を応援する。第3四路切換弁(3C)の切換指令後の第1ノンインバータ圧縮機(2B)の吸入圧力を検出する吸入圧力検出部(81)と、該吸入圧力検出部(81)の検出圧力が所定値以下に低下すると上記第3四路切換弁(3C)が作動不良であると判別して上記切換指令を保持する指令保持部(82)と、該指令保持部(82)が切換指令を保持すると第1ノンインバータ圧縮機(2B)を停止させて所定時間の間待機させる圧縮機待機部(83)とが設けられている。

    Abstract translation: 在冷冻装置中,第一非变换器压缩机(2B)通过切换第三四通切换阀(3C)而支承逆变器压缩机(2A)和第二非变频压缩机(2C)。 冷冻装置具有用于检测第一非变频压缩机(2B)的吸入压力的吸入压力检测部(81),在第三四通换向阀(3C)的切换指令之后的吸入压力为压力; 用于确定如果由吸入压力检测部(81)检测到的压力不高于预定值的命令保持部(82),则第三四通切换阀(3C)失效并保持切换命令 ; 以及压缩机待机部(83),用于当所述指令保持部(82)保持所述切换命令时,停止所述第一非变频压缩机(2B)使其等待规定时间。

    REFRIGERANT CYCLE WITH PLURAL CONDENSERS RECEIVING REFRIGEANT AT DEFFERENT PRESSURE
    79.
    发明申请
    REFRIGERANT CYCLE WITH PLURAL CONDENSERS RECEIVING REFRIGEANT AT DEFFERENT PRESSURE 审中-公开
    在压力范围内接收制冷剂的冷凝器的制冷循环

    公开(公告)号:WO2006044283A2

    公开(公告)日:2006-04-27

    申请号:PCT/US2005/036279

    申请日:2005-10-11

    CPC classification number: F25B6/02 F25B1/10 F25B2400/075

    Abstract: A refrigerant cycle is provided with a compressor system, capable of simultaneously delivering refrigerant to multiple condensers operating at different temperature levels. A single evaporator communicates with these condensers. One of the condensers receives fully compressed refrigerant while the others receives refrigerant at an intermediate pressure. A control can optionally direct refrigerant to only one of these condensers to achieve desired heat rejection and other operational characteristics. Various system configurations with multiple compressors and condensers are also disclosed.

    Abstract translation: 制冷剂循环设置有压缩机系统,能够同时将制冷剂输送到以不同温度水平操作的多个冷凝器。 单个蒸发器与这些冷凝器通信。 其中一个冷凝器接收完全压缩的制冷剂,而其他冷凝器在中间压力下接收制冷剂。 控制器可以可选地将制冷剂仅引导到这些冷凝器中的一个,以实现期望的散热和其它操作特性。 还公开了具有多个压缩机和电容器的各种系统配置。

    MÉTODO Y SISTEMA DE CONTROL
    80.
    发明申请
    MÉTODO Y SISTEMA DE CONTROL 审中-公开
    控制方法与系统

    公开(公告)号:WO2006042893A1

    公开(公告)日:2006-04-27

    申请号:PCT/ES2005/070095

    申请日:2005-06-21

    Abstract: Método y sistema de control que comprende una unidad (11) de control electrónica que gobierna el suministro de energía eléctrica de corriente desde una fuente de energía eléctrica a una disposición motor-compresor (12, 13); la unidad de control electrónica comprende un medio conversor que se conecta un medio (15) de inversión para suministra la tensión demandada por el motor (12). Un regulador (16) de ancho de pulso PWM genera las señales de conmutación para todos los elementos de conmutación de la unidad (11) relativas a dicha tensión demandada.

    Abstract translation: 本发明涉及一种控制方法和系统,包括一个电子控制单元(11),该控制单元管理从电源向电动机/压缩机组(12,13)供电的电流。 上述电子控制单元包括转换器装置,其连接到反转装置(15),以便提供电动机(12)所需的电压。 此外,脉冲宽度调制器(16,PWM)相对于所需电压产生用于单元(11)的所有开关元件的开关信号。

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