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1. 发明授权

US12007060B2 Method for filling a trench comprising a pair of conduits and such a filled trench 有权
公开(公告)号：US12007060B2
公开(公告)日：2024-06-11
申请号：US17309553
申请日：2019-12-03
申请人： E.ON SVERIGE AB
发明人： Per Rosén , Jacob Skogström , Bengt Lindoff , Fredrik Rosenqvist
IPC分类号： F16L59/15 , F16L1/028
CPC分类号： F16L59/15 , F16L1/028
摘要： A filled trench is disclosed. The filled trench comprises: a pair of conduits (3a, 3b) for delivering fluid with a different temperature in each of the conduits, the pair of conduits being surrounded by filling material; a first section (5a) filled with a filling material of a first type (4a), wherein the first filled section (5a) of the filled trench occupies a space surrounding a first conduit (3a) of the pair of conduits; and a second section (5b) filled with a filling material of a second type (4b), wherein the second filled section (5b) of the filled trench occupies a space surrounding a second conduit (3b) of the pair of conduits. The filling material of the first type (4a) has a first thermal conduction coefficient and the filling material of the second type (4b) has a second thermal conduction coefficient, the second thermal conduction coefficient being different from the first thermal conduction coefficient.

2. 发明授权

US11629863B2 District energy distribution system and method of providing mechanical work and heating heat transfer fluid of a district thermal energy circuit 有权
公开(公告)号：US11629863B2
公开(公告)日：2023-04-18
申请号：US16608202
申请日：2018-04-26
申请人： E.ON Sverige AB
发明人： Per Rosén , Fredrik Rosenqvist
IPC分类号： F24D10/00 , F01K9/00 , F24D19/10 , F24D18/00 , F24T10/20 , F24D103/13 , F24D101/10
摘要： A district energy distributing system comprising a geothermal power plant comprising a first and a second circuit. The first circuit comprises a feed conduit for an incoming flow of geothermally heated water from a geothermal heat source; a boiler comprising a heat exchanger configured to exchange heat from the incoming flow of geothermally heated water to superheat a working medium of a second circuit of the geothermal power plant; and a return conduit for a return flow of cooled water from the boiler to the geothermal heat source. The second circuit comprises the boiler configured to superheat the working medium of the second circuit; an expander configured to allow the superheated working medium to expand and to transform the expansion to mechanical work; and a condenser configured to transform the expanded working medium to liquid phase and to heat a heat transfer fluid of a district thermal energy circuit.

3. 发明申请

US20220349589A1 A METHOD AND AN APPARATUS FOR DETERMINING A DEVIATION IN A THERMAL ENERGY CIRCUIT 有权
公开(公告)号：US20220349589A1
公开(公告)日：2022-11-03
申请号：US17310652
申请日：2020-02-20
申请人： E.ON SVERIGE AB
发明人： Per Rosén , Jacob Skogström , Fredrik Rosenqvist , Bengt Lindoff
IPC分类号： F24D10/00 , F24D19/10
摘要： A method for identifying a deviation in a thermal energy circuit is presented. The method comprising: receiving (302) a first hot fluid flow measurement (f1) from a first hot fluid flow sensor (208) arranged in a hot fluid conduit (102); receiving (304) a first cold fluid flow measurement (r1) from a first cold fluid flow sensor (204) arranged in a cold fluid conduit (104); receiving (306) a second hot fluid flow measurement (f2) from a second hot fluid flow sensor (210) arranged in the hot fluid conduit (102) upstream the first hot fluid flow meter (208); receiving (308) a second cold fluid flow measurement (r2) from a second cold fluid flow sensor (206) arranged in the cold fluid conduit (104) downstream the first cold fluid flow sensor (204); receiving (310) a thermal device flow measurement (g) from a thermal device flow sensor (202) configured to measure a thermal device flow of a thermal device (106a) connected to the hot fluid conduit (102) downstream the first hot fluid flow sensor (208) and upstream the second hot fluid flow sensor (210), and to the cold fluid conduit (104) upstream the first cold fluid flow sensor (204) and downstream the second cold fluid flow sensor (206). The method further comprising upon (312) the first hot fluid flow measurement (f1) is different from the second hot fluid flow measurement (f2) and the thermal device flow measurement (g) in combination, generating (314) a first deviation signal indicating a deviation in the hot fluid conduit (102), or upon (316) the first cold fluid flow measurement (r1) is different from the second cold fluid flow measurement (r2) and the thermal device flow measurement (g) in combination, generating (318) a second deviation signal indicating a deviation in the cold fluid conduit (104).

4. 发明申请

US20220018488A1 METHOD FOR FILLING A TRENCH COMPRISING A PAIR OF CONDUITS AND SUCH A FILLED TRENCH 有权
公开(公告)号：US20220018488A1
公开(公告)日：2022-01-20
申请号：US17309553
申请日：2019-12-03
申请人： E.ON SVERIGE AB
发明人： Per Rosén , Jacob Skogström , Bengt Lindoff , Fredrik Rosenqvist
IPC分类号： F16L59/15 , F16L1/028
摘要： A filled trench is disclosed. The filled trench comprises: a pair of conduits (3a, 3b) for delivering fluid with a different temperature in each of the conduits, the pair of conduits being surrounded by filling material; a first section (5a) filled with a filling material of a first type (4a), wherein the first filled section (5a) of the filled trench occupies a space surrounding a first conduit (3a) of the pair of conduits; and a second section (5b) filled with a filling material of a second type (4b), wherein the second filled section (5b) of the filled trench occupies a space surrounding a second conduit (3b) of the pair of conduits. The filling material of the first type (4a) has a first thermal conduction coefficient and the filling material of the second type (4b) has a second thermal conduction coefficient, the second thermal conduction coefficient being different from the first thermal conduction coefficient.

5. 发明授权

US11199171B2 Flow controller 有权
公开(公告)号：US11199171B2
公开(公告)日：2021-12-14
申请号：US17029061
申请日：2020-09-23
申请人： E.ON Sverige AB
发明人： Per Rosén
IPC分类号： F03B3/10 , F03B15/00 , G05D7/06 , H02K7/18
摘要： The present invention relates to a flow controller configured to selectively act as a pump or as a flow regulator. The flow controller comprises: an inlet for a fluid; an outlet for the fluid; a pump assembly arranged between the inlet and the outlet and configured to pump the fluid through the flow controller from the inlet to the outlet; a hydro electrical generator assembly arranged between the inlet and the outlet, the hydro electrical generator assembly configured to allow the fluid flow through the flow controller from the inlet to the outlet and to generate electricity by transforming flow energy of the fluid flowing through the flow controller into electricity; and a mode controller configured to selectively set the flow controller in a pumping mode or in an electricity generating mode.

6. 发明申请

US20210341167A1 THERMAL ENERGY DISTRIBUTION SYSTEM AND CONTROL METHOD THEREOF 有权
公开(公告)号：US20210341167A1
公开(公告)日：2021-11-04
申请号：US17250984
申请日：2019-10-02
申请人： E.ON SVERIGE AB
发明人： Per Rosen , Jacob Skogstrom , Fredrik Rosen
IPC分类号： F24F11/65 , G05B13/02
摘要： The disclosure relates to a method for controlling a thermal energy distribution system, the method comprising:—determining forecast data pertaining to expected overall outtake of heat and/or cooling over time from a distribution grid by local distribution systems connected to the distribution grid, and to expected production capacity of heat and/or cooling in one or more production plants,—determining, at a control server, a time resolved control signal, the control signal being based on forecast data and being associated with at least one local control unit,—sending the control signal from the control server to the associated local control unit,—receiving the control signal at the associated local control unit,—regulating over time, in response to the control signal, the outtake of heat and/or cooling of the local distribution system from the distribution grid. The thermal energy distribution system is also claimed

7. 发明授权

US11118790B2 Thermal server plant and a method for controlling the same 有权
公开(公告)号：US11118790B2
公开(公告)日：2021-09-14
申请号：US16064908
申请日：2016-12-15
申请人： E.ON Sverige AB
发明人： Per Rosén
IPC分类号： F24D19/10 , F24D10/00 , F24D11/00
摘要： The present invention relates to a thermal server plant (40) arranged to be connected to a thermal energy circuit (10) comprising a hot conduit (12) configured to allow heat transfer liquid of a first temperature to flow therethrough, and a cold conduit (14) configured to allow heat transfer liquid of a second temperature to flow therethrough. The thermal server plant comprises a balancing device (41) arranged to be connected to the hot conduit and to the cold conduit for selectively allowing heat transfer liquid to flow from the hot conduit, via a regulator (42) and a heat exchanger (44), into the cold conduit or allowing heat transfer liquid to flow from the cold conduit, via the regulator and the heat exchanger, into the hot conduit. The flow direction is determined by a pressure difference between the hot and cold conduits. The heat exchanger is configured to alter the temperature of the heat transfer liquid flowing through the balancing device by selectively cool heat transfer liquid from the hot conduit or heat transfer liquid from the cold conduit.

8. 发明授权

US11060738B2 Heating system 有权
公开(公告)号：US11060738B2
公开(公告)日：2021-07-13
申请号：US16314445
申请日：2017-06-29
申请人： E.ON Sverige AB
发明人： Per Rosén
IPC分类号： F24D5/12 , F24D3/18 , F24D10/00 , F24D19/10 , F24F3/06
摘要： The invention refers to a heating system (100) comprising a district cooling grid (1) and a local heating system (200) configured to heat a building and/or to heat tap water for the building. The heating system has a feed conduit (5) for an incoming flow of cooling fluid having a first temperature, and a return conduit (8) for a return flow of cooling fluid having a second temperature, the second temperature being higher than the first temperature. The local heating system (200) comprises a heat pump (10) having an inlet (10a) connected to the return conduit (8) of the district cooling grid (1) and an outlet (10b) connected to the feed conduit (5) of the district cooling grid (1).

9. 发明申请

US20210131677A1 THERMAL HEATING SYSTEM AND A CONTROLLER FOR THE SAME 有权
公开(公告)号：US20210131677A1
公开(公告)日：2021-05-06
申请号：US17255250
申请日：2019-06-19
申请人： E.ON SVERIGE AB
发明人： Jonas Ekestubbe
IPC分类号： F24D19/10 , F24T10/15 , F24D3/02 , F24D3/10 , F24D5/02 , F24D11/00
摘要： A system comprising a main circuit for routing a flow of heat transfer liquid out of a thermal storage to at least one outer heat exchanger and back to the thermal storage again, a main circulation pump configured to force the heat transfer liquid through the main circuit, a temperature sensor configured to measure the temperature of the heat transfer liquid, and a controller configured to control the main circulation pump based on temperature readings of the temperature sensor such that a calculated Reynolds number for the flow of heat transfer liquid is constant at a predetermined target Reynolds number over at least a primary temperature range.

10. 发明申请

US20200132038A1 FLOW CONTROLLER 审中-公开
公开(公告)号：US20200132038A1
公开(公告)日：2020-04-30
申请号：US16463388
申请日：2017-12-15
申请人： E.ON Sverige AB
发明人： Per Rosén
IPC分类号： F03B3/10 , F03B15/00 , G05D7/06 , H02K7/18
摘要： The present invention relates to a flow controller configured to selectively act as a pump or as a flow regulator. The flow controller comprises: an inlet for a fluid; an outlet for the fluid; a pump assembly arranged between the inlet and the outlet and configured to pump the fluid through the flow controller from the inlet to the outlet; a hydro electrical generator assembly arranged between the inlet and the outlet, the hydro electrical generator assembly configured to allow the fluid flow through the flow controller from the inlet to the outlet and to generate electricity by transforming flow energy of the fluid flowing through the flow controller into electricity; and a mode controller configured to selectively set the flow controller in a pumping mode or in an electricity generating mode.

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