WO2013032341A2 - Remote heating plant - Google Patents

Remote heating plant Download PDF

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Publication number
WO2013032341A2
WO2013032341A2 PCT/NO2012/050149 NO2012050149W WO2013032341A2 WO 2013032341 A2 WO2013032341 A2 WO 2013032341A2 NO 2012050149 W NO2012050149 W NO 2012050149W WO 2013032341 A2 WO2013032341 A2 WO 2013032341A2
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WO
WIPO (PCT)
Prior art keywords
wing
paddle wheel
liquid
lamellae
remote
Prior art date
Application number
PCT/NO2012/050149
Other languages
French (fr)
Other versions
WO2013032341A3 (en
Inventor
Frank W AMUNDSEN
Original Assignee
Amundsen Frank W
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Amundsen Frank W filed Critical Amundsen Frank W
Publication of WO2013032341A2 publication Critical patent/WO2013032341A2/en
Publication of WO2013032341A3 publication Critical patent/WO2013032341A3/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00—Other machines or engines
    • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F03B17/062—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction
    • F03B17/065—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction the flow engaging parts having a cyclic movement relative to the rotor during its rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/22—Wind motors characterised by the driven apparatus the apparatus producing heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/21—Rotors for wind turbines
    • F05B2240/211—Rotors for wind turbines with vertical axis
    • F05B2240/218—Rotors for wind turbines with vertical axis with horizontally hinged vanes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier

Definitions

  • the invention is a remote heating plant comprising a turbine- or paddle wheel driven by a fluid flow and which provides warm water to a consumer.
  • the turbine- or paddle wheel is entirely or partly submerged, lying in a water flow in a river or in the sea, or arranged onshore and driven by an air flow.
  • DE202006002081U1 is a German Gebrauchsmuster which describes a hydroelectric power plant with a horizontally arranged turbine wheel wherein a half portion with wings and vertical blades extend into a river flow and wherein the opposite half part extends within the river bank, and wherein the paddles may be pivoted up about a wing axis so as for not exerting mechanical resistance when they run opposite to the flow direction of the river.
  • the paddle wheel axle drives an electrical generator.
  • the invention is a remote heat plant (0) comprising a turbine wheel or paddle wheel (1) in a fluid flow, i.e. a water current or an air flow, wherin the turbine- or paddle wheel comprises wings (7) connected in a hub (s) in the center of the paddle wheel (1), wherein the turbine- or paddle wheel (1) is connected to a pump (3), preferably a hydraulic pumpe, which pumps a liquid in a closed cirquit through a choke valve (4) and / or a reduction valve (5) for heating the liquid, and further through a heat exchanger (6) for exchanging heat with colder liquid which is heated and supplied to a consumer.
  • a pump (3) preferably a hydraulic pumpe, which pumps a liquid in a closed cirquit through a choke valve (4) and / or a reduction valve (5) for heating the liquid, and further through a heat exchanger (6) for exchanging heat with colder liquid which is heated and supplied to a consumer.
  • the invention is, in one embodiment, a remote heating plant (0) comprising a paddle wheel (1), entirely or partially submerged, lying in a water current and further comprising arms / wings (7) connected in a hub (s) at the center of the paddle wheel (1), wherein plates (2) at the wings are arranged for being pivoted up when against the flow and fall down to a standing position for catching water when running with the flow, and wherein the paddle wheel (1) is further connected to a pump (3), preferably a hydraulic pump which pumps a liquid, preferably hydraulic oil in a closed circuit through a choke valve (4) and / or a reduction valve (5) for heating the liquid, and further through a heat exchanger (6) for exchanging heat with colder liquid which is heated and supplied to a consumer, wherein each wing (7) comprises a grid (8) which covers the entire width and partially or entirely the wing's length, and further wherein two or more lamellae (9) arranged on said grid (8) in the length direction of the wing (7) and two or more lamellae (
  • Fig. 1 shows a plane view of a horizontal paddle wheel arranged with its one half part extending out in a river flow.
  • Fig. 2 shows a vertical section through A-A from Fig. 1.
  • Fig. 3 shows a simplified circuit diagramme of the paddle wheel with a pump connected to a choke valve or a reduction valve and a heat exchanger to a remote plant.
  • the valve(s) (4, 5) are drawn at the outside of the heat exchanger (6) for the sake of clarity, but that the valves (4, 5) should rather stand within the hot part of the heat exchanger (6) in order for avoiding loss of heat.
  • Fig. 4a shows a section A-A through the paddle wheel.
  • Fig. 4b shows the sections B-B and C-C through each their wing of the paddle wheel of Fig. 4a, wherein section B-B shows opened lamellae because the wing runs against the flow, and wherein section C-C shows closed lamellae because the wing is brought along with the flow.
  • the drawing marked Fig. "4a and 4b" shows the same as seen from above.
  • Fig. 5 shows a simplified circuit diagramme of another embodiment of the invention than the one of Fig. 3.
  • a turbine wheel in a nacelle connected to a hydraulic pump in the nacelle.
  • the hydraulic circuit is led down to the ground to a heat exchanger so as a remote heat plant is formed according to the invention.
  • the invention is a remote heat plant (0) comprising a turbine wheel or paddle wheel (1) entirely or partially being submerged, generally in a fluid flow, i.e. a water current or an air flow, and wherein said turbine- or paddle wheel comprises arms or wings (7) connected in a hub (s) at the center of the paddle wheel.
  • the paddle wheel is provided with pates or lamellae (2, 9) on the wings arranged for being pivoted up when against the flow and fall down to a standing position for catching water with the flow. In this way the turbine- or paddle wheel may rotate in the fluid flow.
  • the paddle wheel (1) is connected to a pump (3), preferably a hydraulic pump which pumps an essentially incompressible liquid such as hydraulic oil in a closed circuit through a valve (4).
  • the valve comprises a choke valve (4) or a reduction valve (5) for heating of the hydraulic liquid when it is forced by the pressure through the valve.
  • valve / valves (4, 5) are drawn outside of the heat exchanger (6) for the sake of clarity, but that the valves (4, 5) rather should stand within the heat exchanger (6) to avoid loss of heat.
  • the oil flows to the valve (4, 5) in a relatively cold state, but under high pressure The friction and the pressure fall generates heat in the hydraulic oil.
  • the heated liquid is sent through a heat exchanger (6) for heat exchange with a colder liquid, e.g. water, which thus is heated up and provided to a consumer, preferably in a circuit.
  • a colder liquid e.g. water
  • the consumer may thus utilize heat in a radiator or similar, e.g. heat pipes in the ordinary way.
  • the heat may be utilized to heat up houses, offices, kettles in the industry, and will provide a considerably reduced cost as compared to buying electrical energy or fuel oil.
  • each wing (7) comprises a grid (8) which covers generally the entire width and entirely or partially covers the length of the wing, wherein further two or more lamellae (9) are arranged on the grid (8) in the wing's (7) length direction and one, two or more lamellae (9) are arranged in the wing's width direction.
  • the water flow may be a large or small river and with high or low flow velocity.
  • the water flow may also be an ocean current or a current in a fjord.
  • the paddle wheel comprises wings which are connected in a hub at the centre of the paddle wheel. On the wings there are arranged paddles in the form of plates or lamellae. Those are arranged for being pivoted up for rotating with little resistance against the flow and fall down to a standing position with the flow so as for the plates' or lamellaes' largest area utilize the energy of the water to drive the wheel around. It is not required any large water velocity for driving such a paddle wheel which is indicated according to Figs. 1 and 2, whether it is arranged in a river or in an ocean current.
  • the paddle wheel is further connected to a pump, preferably a hydraulic pump, which pumps a liquid, preferably hydraulic oil, in a closed circuit through a choke valve and / or a reduction valve.
  • a pump preferably a hydraulic pump
  • the liquid which is pumped in this circuit (the hydraulic oil) will, due to the friction in the valves, be heated. That heat we wish to utilize.
  • the closed liquid circuit is led through a heat exchanger for exchanging heat with cold water which thus is heated up and delivered to a consumer.
  • the water to the consumer is run in a closed circuit, please see Fig. 3 or 5, but it is not absolutely necessary; one may take in fresh cold water to the heat exchanger and heat it up.
  • each wing on the paddle wheel may comprise a grid which covers the entire width of the wing and partially or entirely covers the length of the wing.
  • On the grid is attached two or more smaller plates or lamella in the length direction of the wing and two or plates or lamellae in the width direction of the wing. These lamellae will mutually overlap partly both in the length- and width direction, such as with roof tiles or fish shell, please see Fig. 4.
  • each plate or lamella will be attached to the grid along the upper edge of the lamella and with a chain or line attached to the lower edge for, together with the gravity force, to guide the lamella back in place to standing position when the wheel rotates from a direction against the current to a direction with the current.
  • the plate or lamellae will stop against the grid so as to remain in a standing position.
  • the grid will also take up part of the force so as for the strain in the hinged area not to become too large.
  • the paddle wheel may in one embodiment be installed partially submerged and half in over land.
  • the plates may be hinged only in their upper edge, pivot up and run in rails on land in stead of against the flow in water.
  • the maintenance may be easily conducted on land. (Fig. 5).
  • a remote heat plant (0) comprising a wind turbine wheel turbine wheel air current turbine wheel comprising wings (7) connected in a hub (s) at the center of the paddle wheel (1), and wherein the turbine- or paddle wheel (1) is further connected to a pump (3), preferably a hydraulic pump which pumps a liquid, preferably hydraulic oil in a closed circuit through a choke valve (4) or / and a reduction valve (5) for heating the liquid, and further through a heat exchanger (6) for exchanging heat with a colder liquid which is heated up and provided to a consumer.
  • the turbine wheel (1) in this air-embodiment has a horizontal axis.
  • the turbine wheel may be installed on an axle in a nacelle in a tower, and in the tower the pump (3) may be mounted and driven directly by the axle.
  • the hydraulic circuit may extend from the pump and down through the tower to a heat exchanger (6) on or near the ground so as for to avoid large mass in the nacelle.
  • the hydraulic circuit may comprise a hydraulic swivel between the tower and the nacelle so as for enabling the nacelle to turn with the wind.
  • a hydraulic motor (11) in the cirquit so as for a part of the energy in the high pressure line to be retrieved as mechanical energy. This energy may be utilized to pump hot water to the consumer.
  • valves for controlling the liquid flows in the high pressure and low pressure portion of the hydraulic circuit are not included in the drawings and will be obvious to place for the person skilled in the art, e.g. that there must be arranged a shut off valve in case one desires to connect or disconnect the hydraulic motor (11).
  • An advantage of the invention is that it may utilize the energy of the water current even by low flow velocities of the water, e.g. 0.5 m/s to 5 m/s, which are typical for rivers and currents in the sea.
  • the paddle wheel which may have a diameter of between 4 m and generally up to 10 to 20 metres or more, only limited by mechanical and safety limitations, will then be able to be rotated by the current and thus drive the hydraulic pump.
  • a slowly running paddle wheel will be cheaply constructed and disadvantages in the form of vibrations or noise will be neglectable. The maintenance will be simple.
  • Another advantage of the invention is that hydraulic pumps are available in a wide range in the market, and hydraulic lines and valves are easy to install, and one do not have to specially construct equipment to any great extent in order to implement the remote heat plant of the invention.

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  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Hydraulic Turbines (AREA)
  • Wind Motors (AREA)
  • Greenhouses (AREA)

Abstract

The invention is a remote heating plant (0) comprising a turbine wheel (1) entirely or partly submerged and lying in a water flow and comprising arms or wings (7) connected to a hub (s) at the center of the turbine wheel (1), wherein plates or lamellae (2, 9) on said wings are arranged for being turned up when running against the flow, and to be turned down to a vertical position for catching water when running with the flow, wherein the turbine wheel (1) further is connected to a pump (3), preferably a hydraulic pump which pumps a liquid, preferably hydraulic oil, in a closed circuit through a choke valve (4) or a reduction valve (5) for heating the liquid, and further through a heat exchanger (6) for exchanging heat with a colder liquid which is heated and delivered to a consumer, wherein each wing (7) comprises a grid (8) covering the entire wing's width and partly or entirely covers the wing's length, wherein two or more plates or lamellae (2, 9) arranged on said grid (8) in the wing's length direction and two or more plates or lamellae (2, 9) are arranged across the wing.

Description

REMOTE HEATING PLANT
Introduction
The invention is a remote heating plant comprising a turbine- or paddle wheel driven by a fluid flow and which provides warm water to a consumer. The turbine- or paddle wheel is entirely or partly submerged, lying in a water flow in a river or in the sea, or arranged onshore and driven by an air flow.
Prior art in the field
Greek patent publication G 1006191B2 describes a hydraulic heat generator which utilizes high pressure oil friction.
DE202006002081U1 is a German Gebrauchsmuster which describes a hydroelectric power plant with a horizontally arranged turbine wheel wherein a half portion with wings and vertical blades extend into a river flow and wherein the opposite half part extends within the river bank, and wherein the paddles may be pivoted up about a wing axis so as for not exerting mechanical resistance when they run opposite to the flow direction of the river. The paddle wheel axle drives an electrical generator.
International patent application PCT/EP2008/064330 describes a turbine wheel with a standing axis arranged for standing at the bottom of a water current and arranged for converting rotational energy to other energy. The turbine wheel has three levels with three horizontal wings with flaps which may pivot between flat-lying when running against the current, and straight down when running with the current.
Brief summary of the invention.
The invention is a remote heat plant (0) comprising a turbine wheel or paddle wheel (1) in a fluid flow, i.e. a water current or an air flow, wherin the turbine- or paddle wheel comprises wings (7) connected in a hub (s) in the center of the paddle wheel (1), wherein the turbine- or paddle wheel (1) is connected to a pump (3), preferably a hydraulic pumpe, which pumps a liquid in a closed cirquit through a choke valve (4) and / or a reduction valve (5) for heating the liquid, and further through a heat exchanger (6) for exchanging heat with colder liquid which is heated and supplied to a consumer. The invention is, in one embodiment, a remote heating plant (0) comprising a paddle wheel (1), entirely or partially submerged, lying in a water current and further comprising arms / wings (7) connected in a hub (s) at the center of the paddle wheel (1), wherein plates (2) at the wings are arranged for being pivoted up when against the flow and fall down to a standing position for catching water when running with the flow, and wherein the paddle wheel (1) is further connected to a pump (3), preferably a hydraulic pump which pumps a liquid, preferably hydraulic oil in a closed circuit through a choke valve (4) and / or a reduction valve (5) for heating the liquid, and further through a heat exchanger (6) for exchanging heat with colder liquid which is heated and supplied to a consumer, wherein each wing (7) comprises a grid (8) which covers the entire width and partially or entirely the wing's length, and further wherein two or more lamellae (9) arranged on said grid (8) in the length direction of the wing (7) and two or more lamellae (9) arranged in the width direction of the wing.
Further embodiments of the invention is defined in the dependent claims. Short figure captions.
The invention is illustrated in the attached drawings, wherein
Fig. 1 shows a plane view of a horizontal paddle wheel arranged with its one half part extending out in a river flow.
Fig. 2 shows a vertical section through A-A from Fig. 1.
Fig. 3 shows a simplified circuit diagramme of the paddle wheel with a pump connected to a choke valve or a reduction valve and a heat exchanger to a remote plant. Please notice that the valve(s) (4, 5) are drawn at the outside of the heat exchanger (6) for the sake of clarity, but that the valves (4, 5) should rather stand within the hot part of the heat exchanger (6) in order for avoiding loss of heat.
Fig. 4a shows a section A-A through the paddle wheel.
Fig. 4b shows the sections B-B and C-C through each their wing of the paddle wheel of Fig. 4a, wherein section B-B shows opened lamellae because the wing runs against the flow, and wherein section C-C shows closed lamellae because the wing is brought along with the flow. The drawing marked Fig. "4a and 4b" shows the same as seen from above.
Fig. 5 shows a simplified circuit diagramme of another embodiment of the invention than the one of Fig. 3. Here sis shown a turbine wheel in a nacelle connected to a hydraulic pump in the nacelle. The hydraulic circuit is led down to the ground to a heat exchanger so as a remote heat plant is formed according to the invention.
Embodiments of the invention
The invention is a remote heat plant (0) comprising a turbine wheel or paddle wheel (1) entirely or partially being submerged, generally in a fluid flow, i.e. a water current or an air flow, and wherein said turbine- or paddle wheel comprises arms or wings (7) connected in a hub (s) at the center of the paddle wheel.
In an embodiment of the invention for use in a water current the paddle wheel is provided with pates or lamellae (2, 9) on the wings arranged for being pivoted up when against the flow and fall down to a standing position for catching water with the flow. In this way the turbine- or paddle wheel may rotate in the fluid flow. The paddle wheel (1) is connected to a pump (3), preferably a hydraulic pump which pumps an essentially incompressible liquid such as hydraulic oil in a closed circuit through a valve (4). The valve comprises a choke valve (4) or a reduction valve (5) for heating of the hydraulic liquid when it is forced by the pressure through the valve.
Notice that the valve / valves (4, 5) are drawn outside of the heat exchanger (6) for the sake of clarity, but that the valves (4, 5) rather should stand within the heat exchanger (6) to avoid loss of heat. The oil flows to the valve (4, 5) in a relatively cold state, but under high pressure The friction and the pressure fall generates heat in the hydraulic oil.
Further the heated liquid is sent through a heat exchanger (6) for heat exchange with a colder liquid, e.g. water, which thus is heated up and provided to a consumer, preferably in a circuit. We assume that t practical limit for the temperature out of the heat exchanger will be near below 100 C. The consumer may thus utilize heat in a radiator or similar, e.g. heat pipes in the ordinary way. The heat may be utilized to heat up houses, offices, kettles in the industry, and will provide a considerably reduced cost as compared to buying electrical energy or fuel oil.
In an embodiment of the invention each wing (7) comprises a grid (8) which covers generally the entire width and entirely or partially covers the length of the wing, wherein further two or more lamellae (9) are arranged on the grid (8) in the wing's (7) length direction and one, two or more lamellae (9) are arranged in the wing's width direction.
The water flow may be a large or small river and with high or low flow velocity. The water flow may also be an ocean current or a current in a fjord. The paddle wheel comprises wings which are connected in a hub at the centre of the paddle wheel. On the wings there are arranged paddles in the form of plates or lamellae. Those are arranged for being pivoted up for rotating with little resistance against the flow and fall down to a standing position with the flow so as for the plates' or lamellaes' largest area utilize the energy of the water to drive the wheel around. It is not required any large water velocity for driving such a paddle wheel which is indicated according to Figs. 1 and 2, whether it is arranged in a river or in an ocean current. The paddle wheel is further connected to a pump, preferably a hydraulic pump, which pumps a liquid, preferably hydraulic oil, in a closed circuit through a choke valve and / or a reduction valve. The liquid which is pumped in this circuit (the hydraulic oil) will, due to the friction in the valves, be heated. That heat we wish to utilize. The closed liquid circuit is led through a heat exchanger for exchanging heat with cold water which thus is heated up and delivered to a consumer. Preferably the water to the consumer is run in a closed circuit, please see Fig. 3 or 5, but it is not absolutely necessary; one may take in fresh cold water to the heat exchanger and heat it up.
In an embodiment each wing on the paddle wheel may comprise a grid which covers the entire width of the wing and partially or entirely covers the length of the wing. On the grid is attached two or more smaller plates or lamella in the length direction of the wing and two or plates or lamellae in the width direction of the wing. These lamellae will mutually overlap partly both in the length- and width direction, such as with roof tiles or fish shell, please see Fig. 4.
In an embodiment each plate or lamella will be attached to the grid along the upper edge of the lamella and with a chain or line attached to the lower edge for, together with the gravity force, to guide the lamella back in place to standing position when the wheel rotates from a direction against the current to a direction with the current. The plate or lamellae will stop against the grid so as to remain in a standing position. The grid will also take up part of the force so as for the strain in the hinged area not to become too large.
The paddle wheel may in one embodiment be installed partially submerged and half in over land. In such an embodiment the plates may be hinged only in their upper edge, pivot up and run in rails on land in stead of against the flow in water. In such an embodiment the maintenance may be easily conducted on land. (Fig. 5).
In an embodiment of the invention it may be arranged as a remote heat plant (0) comprising a wind turbine wheel turbine wheel air current turbine wheel comprising wings (7) connected in a hub (s) at the center of the paddle wheel (1), and wherein the turbine- or paddle wheel (1) is further connected to a pump (3), preferably a hydraulic pump which pumps a liquid, preferably hydraulic oil in a closed circuit through a choke valve (4) or / and a reduction valve (5) for heating the liquid, and further through a heat exchanger (6) for exchanging heat with a colder liquid which is heated up and provided to a consumer. The turbine wheel (1) in this air-embodiment has a horizontal axis. In this embodiment the turbine wheel may be installed on an axle in a nacelle in a tower, and in the tower the pump (3) may be mounted and driven directly by the axle. The hydraulic circuit may extend from the pump and down through the tower to a heat exchanger (6) on or near the ground so as for to avoid large mass in the nacelle. The hydraulic circuit may comprise a hydraulic swivel between the tower and the nacelle so as for enabling the nacelle to turn with the wind.
In an embodiment of the invention there may be connected a hydraulic motor (11) in the cirquit so as for a part of the energy in the high pressure line to be retrieved as mechanical energy. This energy may be utilized to pump hot water to the consumer.
Obviously there is a need for valves for controlling the liquid flows in the high pressure and low pressure portion of the hydraulic circuit. Such valves are not included in the drawings and will be obvious to place for the person skilled in the art, e.g. that there must be arranged a shut off valve in case one desires to connect or disconnect the hydraulic motor (11).
Advantages of the invention An advantage of the invention is that it may utilize the energy of the water current even by low flow velocities of the water, e.g. 0.5 m/s to 5 m/s, which are typical for rivers and currents in the sea. The paddle wheel, which may have a diameter of between 4 m and generally up to 10 to 20 metres or more, only limited by mechanical and safety limitations, will then be able to be rotated by the current and thus drive the hydraulic pump. A slowly running paddle wheel will be cheaply constructed and disadvantages in the form of vibrations or noise will be neglectable. The maintenance will be simple.
Another advantage of the invention is that hydraulic pumps are available in a wide range in the market, and hydraulic lines and valves are easy to install, and one do not have to specially construct equipment to any great extent in order to implement the remote heat plant of the invention.

Claims

Claims
1. A remote heat plant (0) comprising a turbine wheel or paddle wheel (1) in a fluid flow, i.e. a water current or an air flow, wherein said turbine- or paddle wheel comprises wings (7) connected in a hub (s) at the center of said paddle wheel (1),
- wherein said turbine - or paddle wheel (1) further is connected to a pump (3), peferably a hydraulic pump which pumps a liquid in a closed circuit through a choke valve (4) and / or a reduction valve (5) for heating said liquid, and further through a heat exchanger (6) for exchanging heat with a colder liquid which is heated and provided to a consumer.
2. The remote heat plant (0) according to claim 1, wherein said liquid in said closed circuit is a hydraulic oil.
3. The remote heat plant (0) according to claim 1 or 2, wherein each wing (7) comprises a grid (8) which covers the entire width of said wing and entirely or partially covers the length of said wing, and wherein two or more hinged, pivotable plates or lamellae (2, 9) are arranged on said grid (8) in the length direction of said wing (7) and one, two or more plates or lamellae (2, 9) are arranged in the width direction of said wing.
- wherein said plates or lamellae (2, 9) of said wings (7) are arranged for being pivoted up against the flow and fall down to a standing position in order to catch water when with the flow.
4. The remote heating plant of claim 1, 2 or 3, wherein said paddle wheel (1) has a vertical axis and is situated in a water current.
5. The remote heating plant (0) according to any of claims 1 - 4, wherein each plate or lamellae (2, 9) is arranged with fastening to the grid (8) in said plate's or lamella's (2, 9) upper edge and with a chain or line (10) attached in its lower edge, for, together with the gravity, to guide the plate or lamella (2, 9) back in its place.
6. The remote heating plant according to one of the preceding claims, wherein the liquid provided form said heat exchanger (6) to the consumer runs in a closed circuit back to said heat exchanger (6).
7. The remote heating plant according to claim 1 or 2, wherein said paddle wheel (1) has a vertical axis and is situated in an air flow.
8. The remote heating plant according to claim 1 or 2, wherein said turbine wheel (1) has a horizontal axis and is situated in an air flow.
9. The remote heating plant of claim 1, wherein a part of said hydraulic oil in said circuit from said pump (3) is utilized in a hydraulic motor (11) for a power takeoff e.g. to an electrical generator, compressor, pressure accumulator, or similar.
PCT/NO2012/050149 2011-08-26 2012-08-17 Remote heating plant WO2013032341A2 (en)

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NO20111168A NO332424B1 (en) 2011-08-26 2011-08-26 District heating plants
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Citations (2)

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DE202006002081U1 (en) 2006-02-08 2006-05-18 Gugg, Anton Hydroelectric power plant for use as flow generating plant, has sprays with circular areas forming respective flow and rear rotational areas, in which sails are flapped/opened, where sails immerse partially in flow stream below water level
GR1006191B (en) 2007-12-07 2008-12-08 Δημητριος Στουπας Hydraulic oil friction heat generation complex

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DE2907895A1 (en) * 1979-03-01 1980-09-04 Voith Getriebe Kg Energy converter using wind turbine and heat exchanger - has turbine shape connected to pump which circulates oil in heat exchanger with control by magnetic valve
DE3714859A1 (en) * 1987-05-05 1988-11-24 Walter Schopf Combination gearing for small wind and water power plants
DE102004042205A1 (en) * 2004-09-01 2006-03-09 Prikot, Alexander, Dipl.-Ing. Wind power plant, has scroller connected with lower attaching ring or window edge of rotor discus by rollers or anti-friction bearing, and central fixing anti-friction bearing provided, if central circular window is necessary in discus
US8177481B2 (en) * 2007-09-10 2012-05-15 Ray-Hung Liang Vertical axis wind turbine
WO2009053415A2 (en) * 2007-10-22 2009-04-30 Alain Huwe Water flow energy converter.

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Publication number Priority date Publication date Assignee Title
DE202006002081U1 (en) 2006-02-08 2006-05-18 Gugg, Anton Hydroelectric power plant for use as flow generating plant, has sprays with circular areas forming respective flow and rear rotational areas, in which sails are flapped/opened, where sails immerse partially in flow stream below water level
GR1006191B (en) 2007-12-07 2008-12-08 Δημητριος Στουπας Hydraulic oil friction heat generation complex

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