VALVE METERING FLOW SENSOR INTEGRATION
    1.
    发明申请

    公开(公告)号:WO2023030762A1

    公开(公告)日:2023-03-09

    申请号:PCT/EP2022/070810

    申请日:2022-08-30

    Applicant: DANFOSS A/S

    Abstract: The present invention relates to an actuator (3) for regulating a valve (1) in a fluid system, wherein the actuator (3) is adapted to operate according to a characteristic curve (4) containing information correlating a valve opening with a flow through the valve (1) and to a flow rate measured by a flow measuring device (5), characterized in that, the regulation of the valve (1) is based on a modified characteristic curve (4M) that is based on a basic characteristic curve (4B) and the measured flow rate by the flow measuring device (5) compared to a design flow rate. The present invention further relates to the method of controlling the valve.

    CONTROL OF FLOW REGULATING DEVICE
    2.
    发明公开
    CONTROL OF FLOW REGULATING DEVICE 审中-公开
    流量调节装置的控制

    公开(公告)号:EP3263996A1

    公开(公告)日:2018-01-03

    申请号:EP17175930.1

    申请日:2017-06-14

    Applicant: Danfoss A/S

    CPC classification number: F24D19/1009

    Abstract: A method to control a fluid flow regulating device being regulated through a control signal ranging from 0-100% during a normal operational load, defined as being within a given load threshold, where said control signal is 0% when said flow regulating device is to be closed and 100% when it is to be open, but when said load gets outside said load threshold the control enters a modified control where said control signal either is never at 0% and/or is never at 100%. A controller including said control method.

    Abstract translation: 控制流体流量调节装置的方法通过在正常操作负载期间范围从0-100%的控制信号来调节,该控制信号被定义为在给定的负载阈值内,其中当所述流量调节装置要求时,所述控制信号为0% 当它打开时关闭和100%,但是当所述负载超出所述负载阈值时,控制器进入修改的控制,其中所述控制信号从未处于0%和/或从未处于100%。 包括所述控制方法的控制器。

    CONTROL SYSTEM AND METHOD FOR CONTROLLING A CONTROL VALVE OF A HYDRODYNAMIC SYSTEM USING AN ACTUATOR

    公开(公告)号:EP3869292A1

    公开(公告)日:2021-08-25

    申请号:EP21157356.3

    申请日:2021-02-16

    Applicant: Danfoss A/S

    Abstract: The invention relates to a control system (12) for controlling a control valve (16) of a hydrodynamic system (10) using an actuator (14), the hydrodynamic system (10) comprising a heat exchanger (24) with a water inlet (18), a water outlet (20), an air inlet (26), and an air outlet (28), the control system (12) comprising a water inlet temperature sensor (30) that is configured to determine a water inlet temperature value, a water outlet temperature sensor (32) that is configured to determine a water outlet temperature value, and an air inlet temperature sensor (34) that is configured to determine an air inlet temperature value, wherein the control system (12) is configured to determine an alpha value of a characteristic of the hydrodynamic system (10) from the water inlet temperature value, the water outlet temperature value, and the air inlet temperature value; to set an inverse of the alpha value of the characteristic of the hydrodynamic system (10) as an alpha value of a characteristic of the control valve (16) in combination with the actuator (14); and to control the control valve (16) with the actuator (14) using the set alpha value of the characteristic of the control valve (16) in combination with the actuator (14). The invention provides an improved control system (12) and a method for controlling a control valve (16) of a hydrodynamic system (10) using an actuator (14) having an optimal control performance and energy efficiency.

    ONE-PIPE HEAT SUPPLY SYSTEM WITH FLOW REGULATION
    4.
    发明申请
    ONE-PIPE HEAT SUPPLY SYSTEM WITH FLOW REGULATION 审中-公开
    一管热管系统,流量调节

    公开(公告)号:WO2011154003A2

    公开(公告)日:2011-12-15

    申请号:PCT/DK2011/000057

    申请日:2011-06-08

    CPC classification number: F24D19/0007 F24D19/1009

    Abstract: System introducing the means to control the flow rate and of a heat exchanging fluid medium to a riser in a one-pipe system being a typical pipe set up in for example building cooperatives for supplying heat to the radiators of the flats. The control method being to regulate the temperature of the supplied heat exchanging fluid medium in response to changes in external parameters (temperature) and the flow rate in response to the temperature of the heat exchanging fluid medium in an return line.

    Abstract translation: 将一个控制流量的装置和一个热交换流体介质引入单管系统中的提升管的系统是一个典型的管道,例如建筑合作社,用于向平面的散热器供热。 控制方法是响应于外部参数(温度)的变化和响应回流管中的热交换流体介质的温度的流量来调节供应的热交换流体介质的温度。

    METHOD TO REGULATE A ONE-PIPE HEAT SUPPLY SYSTEM
    5.
    发明申请
    METHOD TO REGULATE A ONE-PIPE HEAT SUPPLY SYSTEM 审中-公开
    一种管道供热系统的方法

    公开(公告)号:WO2011154002A2

    公开(公告)日:2011-12-15

    申请号:PCT/DK2011/000056

    申请日:2011-06-08

    Abstract: Method to control the flow rate and of a heat exchanging fluid medium to a riser in a one-pipe system being a typical pipe set up in for example building cooperatives for supplying heat to the radiators of the flats. The method being to regulate the temperature of the supplied heat exchanging fluid medium in response to changes in external parameters (temperature) and the flow rate in response to the temperature of the heat exchanging fluid medium in a return line.

    Abstract translation: 控制流量的热交换流体介质的方法和在单管系统中的提升管的热交换流体介质的方法是典型的管道,其设置在例如建筑合作社中,用于向散热器供应热量。 该方法是响应于外部参数(温度)的变化和响应回流管中热交换流体介质的温度的流量来调节供应的热交换流体介质的温度。

    HEATING SYSTEM
    6.
    发明公开
    HEATING SYSTEM 审中-公开

    公开(公告)号:EP3428547A1

    公开(公告)日:2019-01-16

    申请号:EP18178144.4

    申请日:2018-06-15

    Applicant: Danfoss A/S

    Abstract: A residential heat system (1) is described comprising a heat exchanger (2) having a primary side (3) and a secondary side (4), wherein the primary side (3) is connected to a heat source and the secondary side (4) is connected to a heating arrangement, the heating arrangement comprising plural branches (6, 7), each branch (6, 7) having a heat exchanging device (8, 9).
    Such a residential heating system should minimize heat consumption.
    To this end a valve arrangement (14) having a flow control valve (16) and a pressure regulating valve (17) keeping constant a pressure difference over the flow control valve (16) is located in a line (15) between the heat exchanger (2) and the branches (6, 7).

    METHOD TO REGULATE A ONE-PIPE HEAT SUPPLY SYSTEM
    7.
    发明公开
    METHOD TO REGULATE A ONE-PIPE HEAT SUPPLY SYSTEM 审中-公开
    VERFAHREN ZUR REGULIERUNG EINES EINROHRIGENWÄRMEZUFUHRSYSTEMS

    公开(公告)号:EP3009750A1

    公开(公告)日:2016-04-20

    申请号:EP15196496.2

    申请日:2011-06-09

    Applicant: Danfoss A/S

    Abstract: Method to control the flow rate and of a heat exchanging fluid medium to a riser in a one-pipe system being a typical pipe set up in for example building cooperatives for supplying heat to the radiators of the flats. The method being to regulate the temperature of the supplied heat exchanging fluid medium in response to changes in external parameters (temperature) and the flow rate in response to the temperature of the heat exchanging fluid medium in an return line.

    Abstract translation: 控制流量的热交换流体介质的方法和在单管系统中的提升管的热交换流体介质的方法是典型的管道,其设置在例如建筑合作社中,用于向散热器供应热量。 该方法是响应于外部参数(温度)的变化和响应于返回管线中的热交换流体介质的温度的流量来调节供应的热交换流体介质的温度。

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