公开(公告)号：WO2013004233A1

公开(公告)日：2013-01-10

申请号：PCT/DK2012/000079

申请日：2012-07-03

Applicant: DANFOSS A/S ,  PRINS, Jan

Inventor： PRINS, Jan

IPC: F25B9/00 ,  F25B49/02

CPC classification number: F25B49/022 ,  F25B9/008 ,  F25B49/02 ,  F25B2309/061 ,  F25B2341/0662 ,  F25B2400/13 ,  F25B2400/16 ,  F25B2500/19 ,  F25B2600/17 ,  F25B2600/2503 ,  F25B2700/21163

Abstract: A method for controlling operation of a vapour compression system ( 1), and a vapour compression system ( 1) are disclosed. The vapour compression system (1) comprises a compressor (2), a heat rejecting heat exchanger (3), a controllable valve (4), a receiver (5), at least one expansion device and at least one evaporator arranged along a refrigerant path having refrigerant flowing therein. The vapour compression system (1) is capable of being operated in a subcritical control regime as well as in a supercritical control regime. The method comprises the steps of measuring a temperature, T GC , of refrigerant leaving the heat rejecting heat exchanger; calculating a pressure reference, P GC,Ref , based on the measured temperature, T GC , and using a calculation formula being applicable to the subcritical control regime as well as to the supercritical control regime; and controlling an opening degree of the controllable valve in order to obtain a pressure of refrigerant leaving the heat rejecting heat exchanger which is equal to the calculated pressure reference, P GC , Ref. Since the calculation formula is applicable to the subcritical control regime as well as to the supercritical control regime, only one calculation formula is necessary, and the vapour compression system (1) can thereby be controlled in a very easy manner.

Abstract translation: 公开了一种用于控制蒸气压缩系统（1）和蒸汽压缩系统（1）的操作的方法。 蒸气压缩系统（1）包括压缩机（2），排热热交换器（3），可控阀（4），接收器（5），至少一个膨胀装置和至少一个沿着制冷剂排列的蒸发器 在其中流动制冷剂的路径。 蒸气压缩系统（1）能够以亚临界控制方式以及超临界控制方式运行。 该方法包括测量离开排热热交换器的制冷剂的温度TGC的步骤; 基于测量温度TGC计算压力参考值PGC，Ref，并使用适用于亚临界控制方案以及超临界控制方案的计算公式; 并且控制可控阀的开度以获得离开排热热交换器的制冷剂压力等于所计算的压力参考值PGC，Ref。 由于计算公式适用于亚临界控制方案和超临界控制方案，因此只需要一个计算公式，从而可以非常容易地控制蒸气压缩系统（1）。

公开(公告)号：WO2012052019A1

公开(公告)日：2012-04-26

申请号：PCT/DK2011/000115

申请日：2011-10-19

Applicant: DANFOSS A/S ,  IZADI-ZAMANABADI, Roozbeh ,  LARSEN, Lars, Finn, Sloth ,  THYBO, Claus

Inventor： IZADI-ZAMANABADI, Roozbeh ,  LARSEN, Lars, Finn, Sloth ,  THYBO, Claus

IPC: F25B41/06

CPC classification number: F25B49/02 ,  F25B41/062 ,  F25B2500/19 ,  F25B2600/21

Abstract: A method for controlling a supply of refrigerant to an evaporator (5) of a vapour compression system (1), such as a refrigeration system, an air condition system or a heat pump, is disclosed. The vapour compression system (1) comprises an evaporator (5), a compressor (2), a condenser (3) and an expansion device (4) arranged in a refrigerant circuit. The method comprises the steps of: Actuating a component, such as an expansion valve (4), a fan or a compressor (2), of the vapour compression system (1) in such a manner that a dry zone in the evaporator (5) is changed; measuring a temperature signal representing a temperature of refrigerant leaving the evaporator (5); analysing the measured temperature signal, e.g. including deriving a rate of change signal; determining a temperature value where a gain of a transfer function between the actuated component and the measured temperature drops from a maximum value to a minimum value, in a decreasing temperature direction; defining the determined temperature value as corresponding to a zero superheat (SH=0) value of refrigerant leaving the evaporator (5), and controlling a supply of refrigerant to the evaporator (5) in accordance with the defined SH=0 temperature value, and on the basis of the measured temperature signal. The method steps may be repeated at certain time intervals in order to provide updated determinations of the SH=0 temperature value. The method allows the SH=0 point to be determined purely on the basis of the measured temperature signal. Subsequently, the supply of refrigerant to the evaporator (5) can be controlled purely on the basis of the measured temperature signal.

Abstract translation: 公开了一种用于控制向蒸气压缩系统（1）的蒸发器（5）供应制冷剂的方法，例如制冷系统，空调系统或热泵。 蒸气压缩系统（1）包括设置在制冷剂回路中的蒸发器（5），压缩机（2），冷凝器（3）和膨胀装置（4）。 该方法包括以下步骤：以蒸发器（5）中的干燥区域的方式驱动蒸气压缩系统（1）的部件，例如膨胀阀（4），风扇或压缩机（2） ）改变了 测量表示离开蒸发器（5）的制冷剂的温度的温度信号; 分析测量的温度信号，例如 包括导出变化率信号; 确定温度值，其中所述致动部件和所测量的温度之间的传递函数的增益在温度降低方向上从最大值下降到最小值; 将所确定的温度值定义为对应于离开蒸发器（5）的制冷剂的零过热（SH = 0）值，以及根据所定义的SH = 0温度值控制向蒸发器（5）供应的制冷剂;以及 在测量温度信号的基础上。 可以以特定时间间隔重复方法步骤，以便提供更新的SH = 0温度值的确定。 该方法允许基于测量的温度信号纯粹地确定SH = 0点。 随后，可以纯粹基于测量的温度信号来控制向蒸发器（5）供应制冷剂。

公开(公告)号：WO2011103875A2

公开(公告)日：2011-09-01

申请号：PCT/DK2011/000011

申请日：2011-02-24

Applicant: DANFOSS A/S ,  FRIEDRICHSEN, Welm ,  HAUGAARD, Erik ,  LANGMAACK, Lasse Nicolai ,  OLSEN, Palle

Inventor： FRIEDRICHSEN, Welm ,  HAUGAARD, Erik ,  LANGMAACK, Lasse Nicolai ,  OLSEN, Palle

CPC classification number: B01D61/06 ,  B01D2313/243 ,  C02F1/441

Abstract: The invention concerns a reverse osmosis system (1) with at least one membrane unit (2) comprising an inlet (3), a permeate outlet (4) and a concentrate outlet (5), a high-pressure pump (8) that is connected to the inlet (3), a pressure exchanger (11) comprising at least one high-pressure concentrate connection (HPC), and a booster pump. It is endeavoured to achieve the lowest possible energy consumption. For this purpose, the booster pump is made as a displacement pump (16) that is arranged between the concentrate outlet (5) and the high-pressure concentrate connection (HPC) of the pressure exchanger (11).

Abstract translation: 本发明涉及一种反渗透系统（1），其中至少一个膜单元（2）包括入口（3），渗透物出口（4）和浓缩物出口（5），高压泵（8） 连接到入口（3），包括至少一个高压浓缩物连接（HPC）的压力交换器（11）和增压泵。 努力实现最低的能源消耗。 为此，增压泵被制成位于设置在浓缩物出口（5）和压力交换器（11）的高压浓缩连接件（HPC）之间的排量泵）。

公开(公告)号：WO2011018087A1

公开(公告)日：2011-02-17

申请号：PCT/DK2010/000107

申请日：2010-07-14

Applicant: DANFOSS A/S ,  HØYER, Jesper, Højland ,  PETERSEN, Hans, Kurt ,  BONDE, Erik, Thomas ,  MORTENSEN, Ole

Inventor： HØYER, Jesper, Højland ,  PETERSEN, Hans, Kurt ,  BONDE, Erik, Thomas ,  MORTENSEN, Ole

IPC: F16K27/10

CPC classification number: F16K27/102 ,  Y10T29/49426

Abstract: A method to manufacture a valve using metal injection moulding is disclosed. The valve housing (2) comprises a welding cap (14) for welding the upper part (5) of the valve to the valve housing (2). The welding cap (14) is placed so the upper part (5) can be welded to the housing (2) without damaging the inner cavity (10) of the housing. There is a gap between the welding cap (14) and the inner liner (15) so the heat from the welding do not damage the inner liner (15) allowing the inner parts of the valve to move freely.

Abstract translation: 公开了一种使用金属注射成型制造阀的方法。 阀壳体（2）包括用于将阀的上部（5）焊接到阀壳体（2）的焊接帽（14）。 焊接帽（14）被放置成使得上部（5）可以焊接到壳体（2）而不损坏壳体的内腔（10）。 在焊接帽（14）和内衬（15）之间存在间隙，因此来自焊接的热量不会损坏内衬（15），允许阀的内部部分自由移动。

公开(公告)号：WO2010105623A1

公开(公告)日：2010-09-23

申请号：PCT/DK2010/000031

申请日：2010-03-15

Applicant: DANFOSS A/S ,  THYBO, Claus

Inventor： THYBO, Claus

IPC: F16K11/074

CPC classification number: F16K1/02 ,  F16K1/34 ,  F16K31/002 ,  Y10T137/86734 ,  Y10T137/86863

Abstract: A valve comprising an inlet opening adapted to receive fluid medium and at least two outlet openings, each being fluidly connected to a flow path being arranged fluidly in parallel, is disclosed. The valve comprises a first valve part (1) and a second valve part (3). The first valve part (1) has at least two flow passages (2) formed therein, each flow passage (2) being fluidly connected to one of the outlet openings. The second valve part (3) has at least one primary flow passage (4) and at least one secondary flow passage (5, 6, 7) formed therein, the primary flow passage(s) (4) and the secondary flow passage(s) (5, 6, 7) being fluidly connected to the inlet opening. The first valve part (1) and the second valve part (3) are movable relative to each other in such a manner that the mutual position of the first valve part (1) and the second valve part (3) determines a fluid flow between the inlet opening and each of the outlet openings, via the flow passages (2, 4, 5, 6, 7) of the first valve part (1) and the second valve part (3).

Abstract translation: 公开了一种阀，包括适于容纳流体介质的入口开口和至少两个出口开口，每个出口开口流体连接到平行流体布置的流动路径。 阀包括第一阀部分（1）和第二阀部分（3）。 第一阀部分（1）具有形成在其中的至少两个流动通道（2），每个流动通道（2）流体地连接到出口之一。 第二阀部分（3）具有至少一个主流动通道（4）和形成在其中的至少一个二次流动通道（5,6,7），主流动通道（4）和次流通道 s）（5,6,7）流体地连接到入口。 第一阀部分（1）和第二阀部分（3）可以相对于彼此移动，使得第一阀部分（1）和第二阀部分（3）的相互位置确定第一阀部分 所述入口和每个所述出口通过所述第一阀部分（1）和所述第二阀部分（3）的流动通道（2,4,5,6,7）。

公开(公告)号：WO2010081474A1

公开(公告)日：2010-07-22

申请号：PCT/DK2010/000004

申请日：2010-01-11

Applicant: DANFOSS A/S ,  CHRISTENSEN, Ole, Holst

Inventor： CHRISTENSEN, Ole, Holst

IPC: F16K31/06 ,  H01F7/16 ,  H01F7/08 ,  H01F7/127

CPC classification number: F16K31/0675 ,  H01F7/127

Abstract: The invention provides a valve comprising a tube (2) for guiding movement of a plunger, a solenoid (3) which can be arranged about the tube, and a yoke which can be positioned in an operational position relative to the tube and relative to the solenoid so that it provides a magnetic path between the solenoid and portions of the tube. The yoke engages the tube and thereby prevents removal of the solenoid from tube. The invention thereby provides a very simple valve design with a low amount of components. The invention further provides a method of making a valve including fixing a solenoid to a tube by use of a yoke which engages the tube.

Abstract translation: 本发明提供了一种阀，其包括用于引导柱塞的运动的管（2），可围绕管布置的螺线管（3）和可以相对于管定位在操作位置并相对于管 螺线管，使得其在螺线管和管的部分之间提供磁路。 轭与管接合，从而防止螺线管从管中移除。 因此，本发明提供了具有少量部件的非常简单的阀设计。 本发明还提供一种制造阀的方法，该阀包括通过使用与管接合的轭固定螺线管至管。

公开(公告)号：WO2010045946A1

公开(公告)日：2010-04-29

申请号：PCT/DK2009/000222

申请日：2009-10-21

Applicant: DANFOSS A/S ,  BIRKELUND, Michael

Inventor： BIRKELUND, Michael

IPC: F16K31/40 ,  F16K25/00

CPC classification number: F16K31/404 ,  F16K25/005

Abstract: A servo valve (100) comprising a valve seat (112) and a diaphragm (116) which may be moved between a closed state in which the servo valve is closed and an open state in which the servo valve is open whereby a fluid may flow between the diaphragm and the valve seat, wherein the diaphragm is stiffer and/or harder than the valve seat.

Abstract translation: 一种伺服阀（100），包括阀座（112）和隔膜（116），所述阀座可在所述伺服阀关闭的关闭状态和所述伺服阀打开的打开状态之间移动，从而流体可能流动 在隔膜和阀座之间，其中隔膜比阀座更硬和/或更硬。

公开(公告)号：WO2010025730A1

公开(公告)日：2010-03-11

申请号：PCT/DK2009/000200

申请日：2009-09-04

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

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

IPC: F25B41/06

CPC classification number: F25B41/062 ,  F25B2341/0652 ,  F25B2600/21 ,  F25B2600/2521 ,  Y02B30/72

Abstract: A method for controlling a flow of refrigerant to an evaporator (1) arranged in a refrigeration system is disclosed. The refrigeration system further comprises an expansion valve (12) and a compressor, the expansion valve (12), the evaporator (1) and the compressor being arranged in a refrigerant flow path having refrigerant flowing therein. The method comprises the steps of increasing an opening degree of the expansion valve (12), thereby increasing a flow of refrigerant to the evaporator (1) sufficiently to substantially eliminate a dry zone (3) of the evaporator (1), decreasing the opening degree of the expansion valve (12) after a period of time has lapsed, and repeating the steps of increasing and decreasing the opening degree of the expansion valve (12). Thus, the opening degree of the expansion valve (12) is 'pulsated'. This causes the superheat value of refrigerant leaving the evaporator (1) to 'toggle' between a zero level and a low, but positive, level. Thereby the average superheat value of the refrigerant leaving the evaporator (1) is decreased, and the refrigeration capacity of the evaporator (1) is utilised more efficiently. Simultaneously, it is ensured that the amount of liquid refrigerant being allowed to pass through the evaporator (1) is kept sufficiently low to prevent damage to the compressor.

Abstract translation: 公开了一种用于控制制冷剂流向布置在制冷系统中的蒸发器（1）的方法。 制冷系统还包括膨胀阀（12）和压缩机，膨胀阀（12），蒸发器（1）和压缩机布置在其中流动有制冷剂的制冷剂流动路径中。 该方法包括增加膨胀阀（12）的开度的步骤，从而增加制冷剂到蒸发器（1）的流动，足以基本上消除蒸发器（1）的干燥区域（3），从而减小开口 一段时间后膨胀阀（12）的程度已经过去，并且重复增加和减少膨胀阀（12）的开度的步骤。 因此，膨胀阀（12）的开度为“脉动”。 这导致离开蒸发器（1）的制冷剂的过热值在零电平和低电平之间“正切”。 因此，离开蒸发器（1）的制冷剂的平均过热值降低，并且更有效地利用蒸发器（1）的制冷量。 同时，确保允许通过蒸发器（1）的液体制冷剂的量保持足够低，以防止损坏压缩机。

公开(公告)号：WO2009146704A1

公开(公告)日：2009-12-10

申请号：PCT/DK2009/000129

申请日：2009-06-03

Applicant: DANFOSS A/S ,  BRAM, Leo

Inventor： BRAM, Leo

IPC: F25B39/02 ,  F25B41/06

CPC classification number: F25B39/028 ,  F25B41/062 ,  F25B2500/01

Abstract: An expansion valve (1) comprising an inlet opening (10), at least two outlet openings (7), a first valve part (2) and a second valve part (4) is disclosed. The inlet opening (10) is adapted to receive fluid medium in a liquid state, and the outlet openings (7) are adapted to deliver fluid medium in an at least partly gaseous state. The first valve part (2) comprises a piston portion (3), and the second valve part (4) comprises a piston receiving portion (5) adapted to receive the piston portion (3) of the first valve part (2). The piston receiving portion (5) has at least two openings (6) formed therein, each of the openings (6) being fluidly connected to one of the outlet openings (7). The openings (6) are arranged in such a manner that each of the openings (6) in combination with the piston portion (3) defines a valve. The first valve part (2) and the second valve part (4) are arranged movably relative to each other in such a manner that the mutual position of the first valve part (2) and the second valve part (4) defines an opening degree of each of the valves.

Abstract translation: 公开了一种包括入口（10），至少两个出口（7），第一阀部分（2）和第二阀部分（4）的膨胀阀（1）。 入口开口（10）适于接收处于液体状态的流体介质，并且出口开口（7）适于以至少部分气态的状态递送流体介质。 第一阀部分（2）包括活塞部分（3），第二阀部分（4）包括适于容纳第一阀部分（2）的活塞部分（3）的活塞接收部分（5）。 活塞接收部分（5）具有形成在其中的至少两个开口（6），每个开口（6）流体地连接到出口（7）中的一个。 开口（6）以与活塞部分（3）组合的每个开口（6）限定阀的方式布置。 第一阀部分（2）和第二阀部分（4）相互相对移动地布置成使得第一阀部分（2）和第二阀部分（4）的相互位置限定开度 的每个阀。

公开(公告)号：WO2009065411A1

公开(公告)日：2009-05-28

申请号：PCT/DK2008/000415

申请日：2008-11-20

Applicant: DANFOSS A/S ,  CLAUSEN, Anders, Ostergaard

Inventor： CLAUSEN, Anders, Ostergaard

IPC: H01L41/113

CPC classification number: H02N2/18 ,  F24D19/1018 ,  F24H2240/00 ,  G08B17/00 ,  G08B29/181

Abstract: The invention concerns a device (1) for generating electrical energy with at least one piezo element (6, 7). It is endeavoured to enable local generation of electrical energy. For this purpose, at least one thermal expansion element (2) is in active connection with the piezo element (6, 7).

Abstract translation: 本发明涉及一种用至少一个压电元件（6,7）产生电能的装置（1）。 努力使当地的电能产生。 为此，至少一个热膨胀元件（2）与压电元件（6,7）有效连接。