公开(公告)号：WO2016062747A1

公开(公告)日：2016-04-28

申请号：PCT/EP2015/074322

申请日：2015-10-21

Applicant: DANFOSS A/S

Inventor： THYBO, Claus

IPC: G05D16/20 ,  G05D7/06 ,  G05D7/01 ,  F24D19/10

CPC classification number: G05D7/0106 ,  F24D19/1012 ,  F24D19/1036 ,  G05D7/0676 ,  G05D16/0655 ,  Y02B30/745

Abstract: A heat exchanger valve arrangement has a pressure control valve (17), said pressure control valve (17) comprising a valve element (18) cooperating with a throttling element (19) and controlling a differential pressure (P2-P3). The invention provides means with which pumping energy in a heating system can be kept low. To this end detecting means (28, 29) are provided detecting whether said differential pressure (P2-P3) exceeds a predetermined minimum value.

Abstract translation: 热交换器阀装置具有压力控制阀（17），所述压力控制阀（17）包括与节流元件（19）配合并控制差压（P2-P3）的阀元件（18）。 本发明提供了能够将加热系统中的泵送能量保持为低的装置。 为此，提供检测装置（28,29），检测所述压差（P2-P3）是否超过预定的最小值。

公开(公告)号：WO2010025728A1

公开(公告)日：2010-03-11

申请号：PCT/DK2009/000198

申请日：2009-09-04

Applicant: DANFOSS A/S ,  VONSILD, Asbjorn, Leth ,  THYBO, Claus ,  LARSEN, Lars, Finn, Sloth ,  SPANGBERG, Jakob ,  HOYER, Jesper ,  VOGLER, Jes

Inventor： VONSILD, Asbjorn, Leth ,  THYBO, Claus ,  LARSEN, Lars, Finn, Sloth ,  SPANGBERG, Jakob ,  HOYER, Jesper ,  VOGLER, Jes

IPC: F25B41/06 ,  F25B49/00

CPC classification number: F25B41/062 ,  F25B49/005 ,  F25B2600/21 ,  F25B2700/21175

Abstract: A method for calibrating a superheat sensor (5) for a refrigeration system is provided. The method comprises the following steps. Increasing an amount of liquid refrigerant in the evaporator (1), e.g. by increasing an opening degree of the expansion valve (3). Monitoring one or more parameters, e.g. the temperature of refrigerant leaving the evaporator (1), said parameters reflecting a superheat value of the refrigerant. Allowing the value of each of the parameter(s) to decrease. When the value(s) of the monitored parameter(s) reaches a substantially constant level, defining the superheat value corresponding to the constant level to be SH=O. The superheat sensor (5) is then calibrated in accordance with the defined SH=O level. When the parameter(s) reaches the substantially constant level it is an indication that liquid refrigerant is allowed to pass through the evaporator (1), and thereby that the superheat of the refrigerant leaving the evaporator (1) is zero. Calibration can be performed on site, and it is therefore not necessary to calibrate the sensor (5) at the manufacturing facility. Thereby it is no longer required to match calibration information with a specific sensor.

Abstract translation: 提供了一种用于校准用于制冷系统的过热传感器（5）的方法。 该方法包括以下步骤。 增加蒸发器（1）中的液体制冷剂的量，例如 通过增大膨胀阀（3）的开度。 监测一个或多个参数，例如 离开蒸发器（1）的制冷剂的温度，所述参数反映制冷剂的过热值。 允许每个参数的值减少。 当所监视的参数的值达到基本上恒定的水平时，将对应于恒定水平的过热值定义为SH = O。 然后根据定义的SH = O电平校准过热传感器（5）。 当参数达到基本上恒定的水平时，表明允许液体制冷剂通过蒸发器（1），从而使离开蒸发器（1）的制冷剂的过热为零。 校准可以在现场执行，因此无需在生产设备中校准传感器（5）。 因此，不再需要将校准信息与特定传感器相匹配。

公开(公告)号：WO2008154919A3

公开(公告)日：2008-12-24

申请号：PCT/DK2008/000219

申请日：2008-06-17

Applicant: DANFOSS A/S ,  THYBO, Claus ,  BRAM, Leo ,  PAWLIK, Jens

Inventor： THYBO, Claus ,  BRAM, Leo ,  PAWLIK, Jens

IPC: F25B41/06 ,  F25B39/02

Abstract: An expansion valve (1) comprising an inlet opening (2) and a distributor (4) being arranged to distribute fluid medium received from the inlet opening to at least two parallel flow paths (3). At least two outlet openings (3) are adapted to deliver fluid in an at least partially gaseous state, and each outlet opening is fluidly connected to one of the parallel flow paths. A first valve part (7) and a second valve part (5) are arranged movably relative to each other in such a manner that the mutual position of the first valve part and the second valve part determines the opening degree of the expansion valve. Since the distributor (4) forms part of the expansion valve, it distributes the fluid medium to the parallel flow paths prior to or during expansion of the fluid medium, i.e. while the fluid medium is in a substantially liquid state. This makes it easier to control the distribution of fluid medium to the parallel flow paths in a uniform manner.

公开(公告)号：WO2011072679A1

公开(公告)日：2011-06-23

申请号：PCT/DK2010/000100

申请日：2010-06-29

Applicant: DANFOSS A/S ,  THYBO, Claus ,  LARSEN, Lars, Finn, Sloth ,  MADER, Gunda

Inventor： THYBO, Claus ,  LARSEN, Lars, Finn, Sloth ,  MADER, Gunda

IPC: F25B5/02 ,  F25B1/10

CPC classification number: F25B5/02 ,  F25B1/10 ,  F25B39/02 ,  F28D1/0417 ,  F28D1/0435

Abstract: A vapour compression system (1) comprising a compressor (2), a condenser (3), an expansion device (4) and an evaporator (5) arranged along a refrigerant path is disclosed. The evaporator (5) comprises at least two evaporator paths (5a, 5b, 5c, 5d) arranged fluidly in parallel between the expansion device (4) and the compressor (2). Each evaporator path (5a, 5b, 5c, 5d) is fluidly connected to the compressor (2) via a separate suction line (7a, 7b, 7c), and the suction pressure in each of the suction lines (7a, 7b, 7c) is distinct from the suction pressure in each of the other suction line(s) (7a, 7b, 7c). The separate suction lines (7a, 7b, 7c) allows the evaporator paths (5a, 5b, 5c, 5d) to be operated at different evaporator temperatures and pressures. Thereby a large temperature change of a secondary flow (6) across the evaporator (5) can be obtained while the suction pressure of a part of the mass flow is kept at a high level. The work required by the compressor (2) is reduced and energy is conserved.

Abstract translation: 公开了一种蒸气压缩系统（1），其包括沿制冷剂路径布置的压缩机（2），冷凝器（3），膨胀装置（4）和蒸发器（5）。 蒸发器（5）包括至少两个平行布置在膨胀装置（4）和压缩机（2）之间的蒸发器路径（5a，5b，5c，5d）。 每个蒸发器路径（5a，5b，5c，5d）经由单独的吸入管线（7a，7b，7c）与压缩机（2）流体连接，吸入管线（7a，7b，7c） ）与其他吸入管线（7a，7b，7c）中的每一个的吸入压力不同。 分离的吸入管线（7a，7b，7c）允许蒸发器路径（5a，5b，5c，5d）在不同的蒸发器温度和压力下操作。 从而可以获得横跨蒸发器（5）的二次流（6）的大的温度变化，同时将质量流的一部分的吸入压力保持在高水平。 压缩机（2）所需的工作减少，节能。

公开(公告)号：WO2010020249A1

公开(公告)日：2010-02-25

申请号：PCT/DK2009/000182

申请日：2009-08-18

Applicant: DANFOSS A/S ,  VONSILD, Asbjørn, Leth ,  THYBO, Claus ,  BRAM, Leo ,  SPANGBERG, Jakob

Inventor： VONSILD, Asbjørn, Leth ,  THYBO, Claus ,  BRAM, Leo ,  SPANGBERG, Jakob

IPC: F25B49/02

CPC classification number: F25B49/00 ,  F25B2700/21

Abstract: A superheat sensor (1) for sensing superheat of a fluid flowing in a flow channel (3) is disclosed. The sensor (1) comprises a flexible wall defining an interface between an inner cavity (5) having a charge fluid (6) arranged therein and the flow channel (3). The flexible wall is arranged in the flow channel (3) in thermal contact with the fluid flowing therein, and the flexible wall is adapted to conduct heat between the flow channel (3) and the inner cavity (5). Thereby the temperature of the charge fluid (6) adapts to the temperature of the fluid flowing in the flow channel (3), and the pressure in the inner cavity (5) is determined by this temperature. A first wall part (7, 14) and a second wall part (9, 16) are arranged at a variable distance from each other, said distance being defined by a differential pressure between the pressure of the charge fluid (6) and the pressure of the fluid flowing in the flow channel (3), i.e. depending on the pressure and the temperature of the fluid flowing in the flow channel (3), and thereby the superheat of the fluid. A distance sensor, e.g. comprising a permanent magnet (8) and a Hall sensor (10), measures the distance between the wall parts, and the superheat is calculated from the measured distance. The sensor (1) is suitable for use in a refrigeration system. The sensor (1) is mechanically simple and capable of determining the superheat by measuring only one parameter.

Abstract translation: 公开了一种用于感测在流动通道（3）中流动的流体的过热的过热传感器（1）。 传感器（1）包括限定在其中布置有充电流体（6）的内腔（5）和流动通道（3）之间的界面的柔性壁。 柔性壁布置在流动通道（3）中，与流过其中的流体热接触，柔性壁适于在流动通道（3）和内腔（5）之间传导热量。 由此，充电流体（6）的温度适应于在流动通道（3）中流动的流体的温度，并且内腔（5）中的压力由该温度确定。 第一壁部分（7,14）和第二壁部分（9,16）以彼此可变的距离布置，所述距离由加压流体（6）的压力和压力 在流动通道（3）中流动的流体，即取决于在流动通道（3）中流动的流体的压力和温度，从而流体的过热。 距离传感器，例如 包括永磁体（8）和霍尔传感器（10），测量壁部之间的距离，并根据测量的距离计算过热度。 传感器（1）适用于制冷系统。 传感器（1）机械简单，能够通过仅测量一个参数来确定过热。

公开(公告)号：WO2007090405A2

公开(公告)日：2007-08-16

申请号：PCT/DK2007/000064

申请日：2007-02-08

Applicant: DANFOSS A/S ,  LARSEN, Lars, Finn, Sloth ,  THYBO, Honglian ,  THYBO, Claus

Inventor： LARSEN, Lars, Finn, Sloth ,  THYBO, Honglian ,  THYBO, Claus

IPC: F24D3/12 ,  F24D19/10

CPC classification number: F24D19/1009 ,  F24D3/12 ,  G05D23/1919

Abstract: The invention provides a method and a system for controlling floor heating or climate regulating systems with long time constants. According to the invention, a flow of a fluid is provided through the floor or through a similar medium with large thermal inertia. An induced heat is determined by adding up a plurality of differences between an inlet temperature of the fluid when it enters the medium and an outlet temperature of the fluid when it leaves the medium. The temperatures are sampled with a fixed sampling time and within a fixed period of time, and a corresponding change in temperature of the medium over the fixed period of time is determined. In the future, the temperature of that medium is controlled by use of a ratio between the induced heat and the change in temperature.

Abstract translation: 本发明提供一种用于控制具有长时间常数的地板采暖或气候调节系统的方法和系统。 根据本发明，通过地板或通过具有大热惯性的类似介质提供流体流。 通过在流体进入介质时流体的入口温度与流体离开介质时的出口温度之间相加多个差异来确定感应热。 以固定的采样时间和固定的时间段对采集的温度进行采样，确定介质在固定时间段内相应的温度变化。 将来，通过使用感应的热量和温度变化之间的比率来控制该介质的温度。

公开(公告)号：WO2003089854A1

公开(公告)日：2003-10-30

申请号：PCT/DK2003/000251

申请日：2003-04-12

Applicant: DANFOSS A/S ,  THYBO, Claus ,  RASMUSSEN, Bjarne, Dindler ,  IZADI-ZAMANABAD, Roozbeh

Inventor： THYBO, Claus ,  RASMUSSEN, Bjarne, Dindler ,  IZADI-ZAMANABAD, Roozbeh

IPC: F25B49/00

CPC classification number: F25D29/008 ,  F25B2500/19 ,  F25B2700/1352 ,  F25B2700/195 ,  F25B2700/197 ,  F25B2700/21163 ,  F25B2700/21172 ,  F25B2700/21173 ,  F25B2700/21175 ,  F25D2500/04

Abstract: Es wird ein Verfahren zum Entdecken von Änderungen in einem ersten Medienstrom eines Wärme-oder Kältetransportmediums in einer Kälteanlage angegeben, in der der erste Medienstrom durch einen Wärmetauscher geführt wird, in dem ein Wärmeübergang zwischen dem ersten Medienstrom und einem zweiten Medienstrom eines Wärmeoder Kälteträgers erfolgt. Man möchte Änderungen möglichst früh erkennen können. Hierzu ist vorgesehen, dass man zur Überwachung des durch en Änderung der Enthalpie des zweiten Medienstromes oder eine davon abgeleitete Größe ermittelt.

Abstract translation: 它在一个制冷系统所述，用于在热的或冷的传热介质，其中，所述第一媒体流通过，其中第一介质流和一个热或冷载体的第二介质流之间的热转变进行热交换器，第一介质流检测的变化的方法。 一想尽早看到变化。 为了这个目的，它提供了一个确定用于监视第二介质流的焓或通过连接改变由其衍生的量。

公开(公告)号：WO2012119602A1

公开(公告)日：2012-09-13

申请号：PCT/DK2012/000019

申请日：2012-03-08

Applicant: DANFOSS A/S ,  FOSEL, Georg ,  THYBO, Claus

Inventor： FOSEL, Georg ,  THYBO, Claus

IPC: F25B41/06

CPC classification number: G05D7/014 ,  F25B41/043 ,  F25B41/062 ,  F25B2341/061 ,  Y10T137/777 ,  Y10T137/86694

Abstract: An expansion valve (16) for a vapour compression system (1) and a vapour compression system (1) are disclosed. The expansion valve (16) comprises a first valve member (17), a second valve member (20) and a third valve member (21), said valve members (17, 20, 21) being arranged in such a manner that relative movements at least between the first valve member (17) and the second valve member (20), and between the first valve member (17) and the third valve member (21) are possible. The expansion valve (16) is switchable between a first state in which an opening degree of the expansion valve (16) is determined by the relative position of the first valve member (17) and the second valve member (20), and a second state in which an opening degree of the expansion valve (16) is determined by the relative position of the first valve member (17) and the third valve member (21). The expansion valve (16) is automatically moved between the first state and the second state in response to a change in direction of fluid flow through the expansion valve (16). The expansion valve (16) is suitable for use in a vapour compression system (1) being capable of selectively operating in air condition mode or heat pump mode, and where reversal of refrigerant flow is therefore necessary. The expansion valve (16) automatically ensures that expanded refrigerant is supplied to a relevant heat exchanger (3, 4), thereby ensuring proper operation of the vapour compression system in air condition mode as well as in heat pump mode.

Abstract translation: 公开了一种用于蒸气压缩系统（1）和蒸汽压缩系统（1）的膨胀阀（16）。 膨胀阀（16）包括第一阀构件（17），第二阀构件（20）和第三阀构件（21），所述阀构件（17,20,21）以相对运动 至少在第一阀构件（17）和第二阀构件（20）之间以及第一阀构件（17）和第三阀构件（21）之间是可能的。 膨胀阀（16）可以在膨胀阀（16）的开度由第一阀构件（17）和第二阀构件（20）的相对位置确定的第一状态和第二状态之间切换，第二状态 膨胀阀（16）的开度由第一阀构件（17）和第三阀构件（21）的相对位置决定的状态。 响应于通过膨胀阀（16）的流体流动方向的变化，膨胀阀（16）在第一状态和第二状态之间自动移动。 膨胀阀（16）适用于能够选择性地在空调模式或热泵模式下操作的蒸气压缩系统（1），因此需要制冷剂流动的反转。 膨胀阀（16）自动确保向相关的热交换器（3,4）供应膨胀的制冷剂，从而确保蒸汽压缩系统在空调模式以及热泵模式下的正常运行。

公开(公告)号：WO2011003416A3

公开(公告)日：2011-01-13

申请号：PCT/DK2010/000102

申请日：2010-07-01

Applicant: DANFOSS A/S ,  THYBO, Claus ,  LARSEN, Lars, Finn, Sloth ,  MADER, Gunda

Inventor： THYBO, Claus ,  LARSEN, Lars, Finn, Sloth ,  MADER, Gunda

IPC: F25B39/02 ,  F28F27/02

Abstract: A method for controlling a flow of refrigerant to an evaporator (1) arranged in a vapour compression system is disclosed. The evaporator (1) comprises at least two evaporator tubes (2) arranged fluidly in parallel, and a header (3) being fluidly connected between the expansion device (5) and the evaporator tubes (2). The method comprises the steps of alternatingly allowing and preventing a flow of mixed phase refrigerant into the header (3). The step of allowing a flow of mixed phase refrigerant into the header (3) is performed in such a manner that a pressure level in the header (3) is increased significantly and abruptly. Thereby the liquid part and the gaseous part of the mixed phase refrigerant are distributed substantially homogeneously in the header (3), and the same filling degree is obtained in the tubes (2). The potential refrigeration capacity of the evaporator (1) can be utilised to a greater extent without risking that liquid refrigerant passes the evaporator (1).

公开(公告)号：WO2010121614A1

公开(公告)日：2010-10-28

申请号：PCT/DK2010/000039

申请日：2010-03-26

Applicant: DANFOSS A/S ,  THYBO, Claus

Inventor： THYBO, Claus

IPC: F16K47/02 ,  F25B41/06 ,  F16K11/074

CPC classification number: F16K47/023 ,  F16K11/074 ,  F25B41/062 ,  Y10T137/0318

Abstract: A method for operating a valve comprising a first valve part (1) having at least one opening (2) and a second valve part (3) having at least one opening (4) formed is disclosed. The first (1) and second (3) valve parts are adapted to perform relative movements, the relative position of the opening(s) (2) of the first valve part (1) and the opening (s) (4) of the second valve part (3) defining an opening degree of the valve by means of an overlapping area of the openings (2, 4). The method comprises the step of moving the first valve part (1) and/or the second valve part (3) from a position defining a maximum opening degree of the valve towards a position defining a minimum opening degree of the valve in such a manner that the velocity of the relative movement between the first valve part (1) and the second valve part (3) is decreased as the overlapping area decreases.

Abstract translation: 公开了一种用于操作阀的方法，该阀包括具有至少一个开口（2）的第一阀部分（1）和具有形成至少一个开口（4）的第二阀部分（3）。 第一（1）和第二（3）阀部件适于执行相对运动，第一阀部件（1）的开口（2）和第一阀部件（1）的开口（4）的相对位置 第二阀部分（3）通过开口（2,4）的重叠区域限定阀的开度。 该方法包括以下步骤：将第一阀部分（1）和/或第二阀部分（3）从限定阀的最大开度的位置朝限定阀的最小开度的位置以这种方式移动 第一阀部分（1）和第二阀部分（3）之间的相对运动的速度随着重叠面积减小而减小。