公开(公告)号：EP3334985B1

公开(公告)日：2019-05-01

申请号：EP16733622.1

申请日：2016-07-01

Applicant: Danfoss A/S

Inventor： PRINS, Jan ,  SCHMIDT, Frede ,  MADSEN, Kenneth Bank ,  FREDSLUND, Kristian

IPC: F25B5/02 ,  F25B41/00 ,  F25B49/02

公开(公告)号：EP3365618A1

公开(公告)日：2018-08-29

申请号：EP16781477.1

申请日：2016-10-14

Applicant: Danfoss A/S

Inventor： PRINS, Jan ,  SCHMIDT, Frede ,  MADSEN, Kenneth, Bank ,  FREDSLUND, Kristian

IPC: F25B49/02 ,  F25B41/00 ,  F25B9/08

CPC classification number: F25B49/02 ,  F25B9/08 ,  F25B41/00 ,  F25B2341/0012 ,  F25B2341/0661 ,  F25B2400/075 ,  F25B2400/13 ,  F25B2400/16 ,  F25B2400/23 ,  F25B2500/19 ,  F25B2500/31 ,  F25B2600/2501 ,  F25B2600/2513 ,  F25B2700/19

Abstract: A method for controlling a vapour compression system (1) is disclosed, the vapour compression system (1) comprising at least one expansion device (8) and at least one evaporator (9). For each expansion device (8), an opening degree of the expansion device (8) is obtained, and a representative opening degree, ODrep, is identified based on the obtained opening degree(s) of the expansion device(s) (8). The representative opening degree could be a maximum opening degree, ODmax, being the largest among the obtained opening degrees. The representative opening degree, ODrep, is compared to a predefined target opening degree, ODtarget, and a minimum setpoint value, SPrec, for a pressure prevailing inside a receiver (7), is calculated or adjusted, based on the comparison. The vapour compression system (1) is controlled to obtain a pressure inside the receiver (7) which is equal to or higher than the calculated or adjusted minimum setpoint value, SPrec.

公开(公告)号：EP3334985A1

公开(公告)日：2018-06-20

申请号：EP16733622.1

申请日：2016-07-01

Applicant: Danfoss A/S

Inventor： PRINS, Jan ,  SCHMIDT, Frede ,  MADSEN, Kenneth Bank ,  FREDSLUND, Kristian

IPC: F25B5/02 ,  F25B41/00 ,  F25B49/02

CPC classification number: F25B41/062 ,  F22B3/045 ,  F25B41/00 ,  F25B43/006 ,  F25B49/02 ,  F25B49/027 ,  F25B2341/0012 ,  F25B2341/0013 ,  F25B2341/0015 ,  F25B2400/0751

Abstract: A vapour compression system (1) comprising at least two evaporator groups (5a, 5b, 5c), each evaporator group (5a, 5b, 5c) comprising an ejector unit (7a, 7b, 7c), at least one evaporator (9a, 9b, 9c) and a flow control device (8a, 8b, 8c) controlling a flow of refrigerant to the at least one evaporator (9a, 9b, 9c). For each evaporator group (5a, 5b, 5c) the outlet of the evaporator (9a, 9b, 9c) is connected to a secondary inlet (12a, 12b, 12c) of the corresponding ejector unit (7a, 7b, 7c). The vapour compression system (1) can be controlled in an energy efficient and stable manner. A method for controlling the vapour compression system (1) is also disclosed.

公开(公告)号：EP3201539A1

公开(公告)日：2017-08-09

申请号：EP15753368.8

申请日：2015-08-21

Applicant: Danfoss A/S

Inventor： SCHMIDT, Frede ,  FREDSLUND, Kristian ,  PRINS, Jan

IPC: F25B49/00

CPC classification number: F25B45/00 ,  F25B49/00 ,  F25B49/005 ,  F25B49/02 ,  F25B2400/16 ,  F25B2400/19 ,  F25B2500/19 ,  F25B2500/222 ,  F25B2700/04 ,  G01K13/00

Abstract: A level sensor is configured to provide a receiver level indicating an amount of the refrigerant present in the receiver and a level model provides a heat rejecting heat exchanger estimate indicating an amount of the refrigerant present in the heat rejecting heat exchanger based on a temperature of the refrigerant. From the sensor and the model, a loss of refrigerant from the RVCS system is estimated.

Abstract translation: 液位传感器被配置为提供指示存在于接收器中的制冷剂的量的接收器水平，并且水平模型提供排热换热器估计，其指示存在于排热换热器中的制冷剂的量基于 制冷剂。 从传感器和模型估计RVCS系统的制冷剂损失。

公开(公告)号：WO2017081157A1

公开(公告)日：2017-05-18

申请号：PCT/EP2016/077275

申请日：2016-11-10

Applicant: DANFOSS A/S

Inventor： MADSEN, Kenneth, Bank ,  SCHMIDT, Frede ,  FREDSLUND, Kristian ,  PRINS, Jan

IPC: F25B41/00 ,  F25B40/02 ,  F25B41/04 ,  F25B1/10 ,  F25B5/00

CPC classification number: F25B41/00 ,  F25B1/10 ,  F25B5/00 ,  F25B40/02 ,  F25B41/04 ,  F25B2341/0012 ,  F25B2400/0407 ,  F25B2400/16 ,  F25B2400/23 ,  F25B2600/2509

Abstract: A vapour compression system (1) comprising an ejector (9), a primary evaporator (17) and a secondary evaporator is disclosed. The vapour compression system (1) further comprises a flow control device (19) arranged with an inlet communicating with a liquid outlet (25) of the receiver (11), and an outlet of the flow control device (19) supplying refrigerant to the secondary evaporator, the secondary evaporator communicating with a secondary inlet (27) of the ejector (9). Thereby the receiver (11) pressure can be optimized irrespective of the refrigerant in the secondary evaporator and the primary (17) and secondary evaporators can provide cooling power simultaneously in an energy efficient manner.

Abstract translation: 公开了包括喷射器（9），主蒸发器（17）和次蒸发器的蒸气压缩系统（1）。 蒸汽压缩系统（1）还包括流量控制装置（19），其设置有与接收器（11）的液体出口（25）连通的入口和流量控制装置（19）的出口， 次级蒸发器，次级蒸发器与喷射器（9）的次级入口（27）连通。 因此，无论次级蒸发器中的制冷剂如何，接收器（11）的压力都可以被优化，并且初级（17）和次级蒸发器可以以节能的方式同时提供冷却功率。

公开(公告)号：WO2017076798A1

公开(公告)日：2017-05-11

申请号：PCT/EP2016/076214

申请日：2016-10-31

Applicant: DANFOSS A/S

Inventor： FREDSLUND, Kristian ,  PRINS, Jan ,  MADSEN, Kenneth, Bank ,  SCHMIDT, Frede

IPC: F25B1/10 ,  F25B9/08 ,  F25B41/04

CPC classification number: F25B1/10 ,  F25B9/08 ,  F25B41/04 ,  F25B2341/0012 ,  F25B2341/0662 ,  F25B2400/23 ,  F25B2600/2519

Abstract: A method for operating a compressor unit (2) comprising one or more compressors (8, 9, 10) is disclosed, the compressor unit (2) being arranged in a vapour compression system (1). Two or more options for distributing the available compressor capacity of the compressor unit (2) between being connected to a high pressure suction line (11) and to a medium pressure suction line (13) are defined. For each option, an expected impact on one or more operating parameters of the vapour compression system (1), resulting from distributing the available compressor capacity according to the option, is predicted. An option is selected, based on the predicted expected impact for the options, and based on current operating demands of the vapour compression system (1), and the available compressor capacity is distributed according to the selected option, e.g. by means of settings of one or more valve arrangements (14, 15).

Abstract translation: 公开了一种用于操作包括一个或多个压缩机（8,9,10）的压缩机单元（2）的方法，压缩机单元（2）布置在蒸汽压缩系统（1）中。 限定了用于在连接到高压吸入管线（11）和中压吸入管线（13）之间分配压缩机单元（2）的可用压缩机容量的两个或更多个选项。 对于每个选项，预测根据选项分配可用压缩机容量导致的对蒸汽压缩系统（1）的一个或多个操作参数的预期影响。 基于对期权的预测预期影响并基于蒸汽压缩系统（1）的当前操作需求选择选项，并且可用压缩机容量根据所选择的选项（例如， 通过设置一个或多个阀门装置（14,15）。

公开(公告)号：WO2017067863A1

公开(公告)日：2017-04-27

申请号：PCT/EP2016/074774

申请日：2016-10-14

Applicant: DANFOSS A/S

Inventor： PRINS, Jan ,  SCHMIDT, Frede ,  MADSEN, Kenneth, Bank ,  FREDSLUND, Kristian

IPC: F25B49/02

CPC classification number: F25B49/022 ,  F25B2341/0012 ,  F25B2400/075 ,  F25B2400/16 ,  F25B2400/23 ,  F25B2500/28

Abstract: A method for controlling a vapour compression system (1) is disclosed. The vapour compression system (1) comprises an ejector (6) and a liquid separating device (10) arranged in a suction line. At least one evaporator (9) is allowed to be operated in a flooded state. A flow rate of refrigerant from the liquid separating device (10) to the secondary inlet (15) of the ejector (6) is detected, and it is determined whether or not the flow rate is sufficient to remove liquid refrigerant produced by the evaporator(s) (9) being allowed to be operated in a flooded state from the liquid separating device (10). In the case that it is determined that the flow rate of refrigerant from the liquid separating device (10) to the secondary inlet (15) of the ejector (6) is insufficient to remove liquid refrigerant produced by the evaporator(s) (9), the flow rate of refrigerant from the liquid separating device (10) to the secondary inlet (15) of the ejector (6) is increased, and/or a flow rate of liquid refrigerant from the evaporator(s) (9) to the liquid separating device (10) is decreased.

Abstract translation: 公开了一种用于控制蒸汽压缩系统（1）的方法。 蒸汽压缩系统（1）包括设置在吸入管线中的喷射器（6）和液体分离装置（10）。 允许至少一个蒸发器（9）在淹没状态下运行。 检测从液体分离装置（10）到喷射器（6）的次级入口（15）的制冷剂的流量，并且确定流量是否足以去除由蒸发器产生的液体制冷剂 s）（9）允许从液体分离装置（10）以淹没状态运行。 在确定从液体分离装置（10）到喷射器（6）的次级入口（15）的制冷剂流量不足以除去由蒸发器（9）产生的液体制冷剂时， ，从液体分离装置（10）到喷射器（6）的次级入口（15）的制冷剂的流量增加，和/或液体制冷剂从蒸发器（9）流到 液分离装置（10）减少。

公开(公告)号：WO2016198258A1

公开(公告)日：2016-12-15

申请号：PCT/EP2016/061736

申请日：2016-05-25

Applicant: DANFOSS A/S

Inventor： SCHMIDT, Frede ,  FREDSLUND, Kristian ,  PRINS, Jan

IPC: F25B29/00 ,  F25B49/02 ,  F25B40/04 ,  F25B1/10

CPC classification number: F25B29/003 ,  F25B1/10 ,  F25B40/04 ,  F25B49/022 ,  F25B2400/075 ,  F25B2400/13 ,  F25B2400/23 ,  Y02B30/52

Abstract: A method for operating a vapour compression system (1) comprising a heat recovery heat exchanger (4) is disclosed. The heat recovery system requests a required level of recovered heat to be provided by the heat recovery heat exchanger (4) to the heat recovery system, generates a signal indicating the required level of recovered heat, and supplies the generated signal to a control unit of the vapour compression system (1). A setpoint value for at least one control parameter of the vapour compression system (1) is calculated, based on the generated signal, and the vapour compression system (1) is operated in accordance with the calculated setpoint value(s).

Abstract translation: 公开了一种用于操作包括热回收热交换器（4）的蒸气压缩系统（1）的方法。 热回收系统要求热回收热交换器（4）向热回收系统提供所需的回收热水平，产生指示回收热量所需水平的信号，并将产生的信号提供给 蒸气压缩系统（1）。 基于产生的信号计算蒸汽压缩系统（1）的至少一个控制参数的设定值，并且蒸气压缩系统（1）根据计算出的设定值操作。

公开(公告)号：WO2016078824A1

公开(公告)日：2016-05-26

申请号：PCT/EP2015/073155

申请日：2015-10-07

Applicant: DANFOSS A/S

Inventor： FREDSLUND, Kristian ,  SCHMIDT, Frede ,  MADSEN, Kenneth Bank ,  PRINS, Jan

IPC: F25B9/00 ,  F25B49/02

CPC classification number: F25B9/008 ,  F25B41/043 ,  F25B49/02 ,  F25B2309/061 ,  F25B2341/0662 ,  F25B2400/075 ,  F25B2400/13 ,  F25B2400/23 ,  F25B2500/29 ,  F25B2500/31 ,  F25B2600/0253 ,  F25B2600/2509 ,  F25B2700/195 ,  F25B2700/2106 ,  F25B2700/21163 ,  Y02B30/741

Abstract: A method for controlling a vapour compression system (1), the vapour compression system (1) comprising a compressor unit (2) comprising one or more compressors (10, 11, 13), is disclosed. At least one of the compressors (11, 13) of the compressor unit (2) is connectable to a gaseous outlet (9) of a receiver (5), and at least one of the compressors (10, 13) of the compressor unit (2) is connectable to an outlet of an evaporator (7). A parameter of the vapour compression system (1) is measured, an enthalpy of refrigerant leaving the heat rejecting heat exchanger (3) being derivable from the measured parameter. A setpoint value for a pressure inside the receiver (5) is calculated, based on the measured parameter, and the compressor unit (2) is operated in accordance with the calculated setpoint value, and in order to obtain a pressure inside the receiver (5) which is equal to the calculated setpoint value. The vapour compression system (1) is operated in an energy efficient manner over a wide range of ambient temperatures.

Abstract translation: 公开了一种用于控制蒸汽压缩系统（1）的方法，所述蒸汽压缩系统（1）包括包括一个或多个压缩机（10,11,13）的压缩机单元（2）。 压缩机单元（2）的至少一个压缩机（11,13）可连接到接收器（5）的气体出口（9），压缩机单元（2）的至少一个压缩机（10,13） （2）可连接到蒸发器（7）的出口。 测量蒸气压缩系统（1）的参数，离开排热热交换器（3）的制冷剂焓可从测量参数推导出。 基于测量参数计算接收器（5）内的压力的设定值，并且根据计算的设定值操作压缩机单元（2），并且为了获得接收器内部的压力（5 ），其等于计算的设定值。 蒸汽压缩系统（1）在宽范围的环境温度下以能量有效的方式操作。

公开(公告)号：EP3371523B1

公开(公告)日：2020-05-06

申请号：EP16788142.4

申请日：2016-10-31

Applicant: Danfoss A/S

Inventor： FREDSLUND, Kristian ,  PRINS, Jan ,  MADSEN, Kenneth, Bank ,  SCHMIDT, Frede

IPC: F25B1/10 ,  F25B9/08 ,  F25B41/04