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1. 发明申请

WO2021099378A1 ENSURING A FLOW OF HEAT TRANSFER FLUID IN A DISTRICT HEATING/COOLING GRID 审中-公开
公开(公告)号：WO2021099378A1
公开(公告)日：2021-05-27
申请号：PCT/EP2020/082520
申请日：2020-11-18
申请人： E.ON SVERIGE AB
发明人： ROSÉN, Per , SKOGSTRÖM, Jacob , CARLSTRÖM, Helen , ROSENQVIST, Fredrik , LINDOFF, Bengt
IPC分类号： F24D10/00 , F24D19/10
摘要： A method for ensuring a flow of heat transfer fluid in a district thermal energy distribution grid (120) comprising a feed conduit (130) and a return conduit (140) is presented. The method comprising: checking if a thermal energy extraction unit (310) connected to the district thermal energy distribution grid is called for delivering thermal energy; upon the thermal energy extraction unit (310) not being called for delivering thermal energy, opening a control valve (340) configured to control a flow of heat transfer fluid from the feed conduit (130) via the thermal energy extraction unit (310) to the return conduit (140), thereby achieving a by-pass from the feed conduit (130) to the return conduit (140). Also control unit for controlling a thermal energy extraction unit (310) is presented.

2. 发明申请

WO2021209443A1 AUTOMATIZATION OF DRAINAGE AND DEAERATORS 审中-公开
公开(公告)号：WO2021209443A1
公开(公告)日：2021-10-21
申请号：PCT/EP2021/059547
申请日：2021-04-13
申请人： E.ON SVERIGE AB
发明人： ROSÉN, Per , CARLSTRÖM, Helen , SKOGSTRÖM, Jacob , ROSENQVIST, Fredrik , LINDOFF, Bengt
IPC分类号： E21B33/035 , F16K37/00
摘要： Disclosed is a valve assembly (100) for drainage or deaeration of a hydraulic system (114), The valve assembly (100) comprising: a valve (102) comprising a first side (104) and a second side (106), the first side (104) is configured to be connected to the hydraulic system (114) and the second side (106) is connected to a mouth piece (108), wherein the valve (102) is configured to be set in an open state or in a closed state, wherein, upon the valve (102) is set in the open state, fluid in the hydraulic system (114) is free to pass the valve (102) from the first side (104) to the second side (106); a valve assembly controller (110) comprising a transceiver (202) configured to receive a control signal indicating a start of drainage or deaeration of the hydraulic system (114) and a valve assembly control circuit (204) configured to execute: a valve control function (210) configured to set the valve (102) in the open state or closed state; and a drainage or deaeration function (212) configured to, based on the control signal, instruct the valve control function (210) to set the valve (102) in the open state; and a sensor (112) configured to monitor the mouth piece (108) to obtain sensor data pertaining to fluid leaving the mouth piece (108) upon the valve (102) is set in the open state.

3. 发明申请

WO2021180752A1 IMPROVED EFFICIENCY FOR A HEAT EXTRACTING SYSTEM AND/OR A HEAT DEPOSITING SYSTEM 审中-公开
公开(公告)号：WO2021180752A1
公开(公告)日：2021-09-16
申请号：PCT/EP2021/055968
申请日：2021-03-10
申请人： E.ON SVERIGE AB
发明人： ROSÉN, Per , SKOGSTRÖM, Jacob , LINDOFF, Bengt , CARLSTRÖM, Helen , ROSENQVIST, Fredrik
IPC分类号： F24D10/00 , F24D3/18 , F24F5/00
摘要： A heat extracting system (100) arranged to be connected to a thermal energy circuit (300) comprising a hot conduit (302) configured to allow thermal fluid of a first temperature to flow therethrough, and a cold conduit (304) configured to allow thermal fluid of a second temperature to flow therethrough, the second temperature is lower than the first temperature, and a heat depositing system (200) arranged to be connected to a thermal energy circuit (300) comprising a hot conduit (302) configured to allow thermal fluid of a first temperature to flow therethrough, and a cold conduit (304) configured to allow thermal fluid of a second temperature to flow therethrough, the second temperature is lower than the first temperature. Also a heat depositing system (200) is disclosed.

4. 发明申请

WO2021089370A1 METHOD AND CONTROL UNIT FOR CONTROLLING A CONTROL VALVE CONTROLLING A FLOW OF HEAT TRANSFER FLUID INTO A THERMAL ENERGY EXTRACTION UNIT 审中-公开
公开(公告)号：WO2021089370A1
公开(公告)日：2021-05-14
申请号：PCT/EP2020/080188
申请日：2020-10-27
申请人： E.ON SVERIGE AB
发明人： ROSÉN, Per , SKOGSTRÖM, Jacob , ROSENQVIST, Fredrik , LINDOFF, Bengt , CARLSTRÖM, Helen
IPC分类号： F24D10/00 , F24D19/10
摘要： Disclosed is a method for controlling a control valve (110), wherein the control valve (110) is configured to control a flow of heat transfer fluid to a thermal energy extraction unit (108). The method comprising: reviewing (S402) a demand signal for the control valve (110); checking (S404) if the demand signal is indicative of setting the control valve (110) in a hysteresis interval for the control valve (110); and upon the demand signal is indicative of setting the control valve (110) in the hysteresis interval, alternatingly (S406) setting the control valve (110) in an open state above the hysteresis interval and setting the control valve (110) in a closed state.

5. 发明申请

WO2021239681A1 CONTROLLING OF A DISTRICT THERMAL ENERGY DISTRIBUTION SYSTEM 审中-公开
公开(公告)号：WO2021239681A1
公开(公告)日：2021-12-02
申请号：PCT/EP2021/063797
申请日：2021-05-25
申请人： E.ON SVERIGE AB
发明人： LINDOFF, Bengt , ROSÉN, Per , SKOGSTRÖM, Jacob , CARLSTRÖM, Helen
IPC分类号： F24D10/00 , F24D19/10
摘要： The present invention relates to a method for controlling one or more heat pumps (110) connected to a distribution grid (10) for fluid-based distribution of heating and cooling in order to, at least partly, compensate for a cold outtake from the distribution grid (10) by a first cooling machine (120) connected to the distribution grid (10). Alternatively, or in combination, one or more cooling machines (120) connected to the distribution grid (10) may be controlled in order to, at least partly, compensate for a heat outtake from the distribution grid (10) by a first heat pump (120) connected to the distribution grid (10). The controlling is made a control server (200) monitoring outtake of heat and/or cold from the distribution grid (10) by the heat pumps (110) and cooling machines (120) connected to the distribution grid (10). The control server (120) generates and sends out control messages to the heat pumps and/or cooling machines.

6. 发明申请

WO2021160593A1 THERMAL ENERGY ASSEMBLY 审中-公开
公开(公告)号：WO2021160593A1
公开(公告)日：2021-08-19
申请号：PCT/EP2021/053046
申请日：2021-02-09
申请人： E.ON SVERIGE AB
发明人： ROSÉN, Per , SKOGSTRÖM, Jacob , LINDOFF, Bengt , CARLSTRÖM, Helen , ROSENQVIST, Fredrik
IPC分类号： F24D3/18 , F24D19/10 , F24F5/00
摘要： A heat pump assembly (100) arranged to be connected to a thermal energy circuit (300) comprising a hot conduit (302) configured to allow thermal fluid of a first temperature to flow therethrough, and a cold conduit (304) configured to allow thermal fluid of a second temperature to flow therethrough, the second temperature is lower than the first temperature, and a cooling machine assembly (200) arranged to be connected to a thermal energy circuit (300) comprising a hot conduit (302) configured to allow thermal fluid of a first temperature to flow therethrough, and a cold conduit (304) configured to allow thermal fluid of a second temperature to flow therethrough.

7. 发明申请

WO2021144216A1 THERMAL ENERGY EXTRACTION ASSEMBLY 审中-公开
公开(公告)号：WO2021144216A1
公开(公告)日：2021-07-22
申请号：PCT/EP2021/050364
申请日：2021-01-11
申请人： E.ON SVERIGE AB
发明人： ROSÉN, Per , SKOGSTRÖM, Jacob , ROSENQVIST, Fredrik , CARLSTRÖM, Helen , LINDOFF, Bengt
IPC分类号： F24D10/00 , F24F5/00 , F24D3/18 , F24D10/003 , F24D2200/123 , F24D2200/13 , F24F5/0003
摘要： A thermal energy extraction assembly (1) is configured to extract heat and/or cold from a thermal energy distribution grid (10) is presented. The assembly (1) comprising a connection circuit (20) connecting the assembly (1) to the grid (10); a first heat exchanger (30) configured to exchange heat from a heating circuit (40) to the grid (10); a second heat exchanger (50) configured to extract heat from the grid (10) to a cooling circuit (60); and a heat pump (70) having a condenser side (71) connected to the heating circuit (40) and an evaporator side (72) connected to the cooling circuit (60), the heat pump (70) being configured to pump heat from the cooling circuit (60) to the heating circuit (40).

8. 发明申请

WO2021043449A1 LEAKAGE DETECTION IN A DISTRIBUTION SYSTEM FOR DISTRIBUTING A FLUID 审中-公开
公开(公告)号：WO2021043449A1
公开(公告)日：2021-03-11
申请号：PCT/EP2020/057624
申请日：2020-03-19
申请人： E.ON SVERIGE AB
发明人： SKOGSTRÖM, Jacob , CARLSTRÖM, Helen , ROSÉN, Per , ROSENQVIST, Fredrik , LINDOFF, Bengt
IPC分类号： G01M3/00 , F17D5/02 , F24D10/00 , F24H9/16 , G01M3/28
摘要： Disclosed is a method for locating a leak in a distribution system (100a, 100b) configured to distribute a liquid, the distribution system comprising at least one conduit (102, 103, 104) configured to transport the liquid, the at least one conduit (102, 103, 104) being at least partly buried in ground, the method comprising receiving (S402) an alarm indicating existence of a leak in the distribution system (100a, 100b); adjusting (S404) a temperature of the liquid of the distribution system (100a, 100b); and locating (S406) the leak by detecting, using thermography, a position along the at least one conduit (102, 103, 104) at which position a deviation in ground temperature, induced by the adjusted temperature, exists. Also a central control server (300) configured to perform the above method and a system comprising the distribution system (100a, 100b), the central control server (300) and a drone (114) are disclosed.

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