초록 ▼

A wind and wave energy plant ( 1 ) comprises a windmill with a rotor ( 3 ) and a wave-actuated water pump that can drive a turbine whose output shaft is in driving connection with an electric generator. The windmill includes a tubular mill tower ( 2 ), which is firmly anchored to the seabed and encl

A wind and wave energy plant ( 1 ) comprises a windmill with a rotor ( 3 ) and a wave-actuated water pump that can drive a turbine whose output shaft is in driving connection with an electric generator. The windmill includes a tubular mill tower ( 2 ), which is firmly anchored to the seabed and encloses a storage tank between the sea surface and the mill rotor ( 3 ), which tank can be filled with water by means of the pump via a non-return valve, and from which water can be led to the turbine.

대표청구항 ▼

1. A wind and wave energy plant, comprising a windmill with a rotor, a wave-actuated water pump, a turbine having a water inlet and an output shaft, and an electric generator, whereby the water pump is in fluid communication with the turbine and the output shaft of the turbine is in driving connecti

1. A wind and wave energy plant, comprising a windmill with a rotor, a wave-actuated water pump, a turbine having a water inlet and an output shaft, and an electric generator, whereby the water pump is in fluid communication with the turbine and the output shaft of the turbine is in driving connection with the electric generator, the windmill including a tubular mill tower which is adapted to be firmly anchored to the seabed and encloses a storage tank between the sea surface and the mill rotor, which tank has a water supply through the pump via a non-return valve and is in fluid communication with the inlet of the turbine. 2. A wind and wave energy plant according to claim 1, wherein the storage tank is elongated and extends substantially from the area around the sea surface to the area at the rotor. 3. A wind and wave energy plant according to claim 1, wherein the mill tower is constituted by a slender pipe which in itself forms the wall of the storage tank. 4. A wind and wave energy plant according to claim 1, wherein the turbine and the associated electric generator are arranged in the mill tower under the storage tank. 5. A wind and wave energy plant according to claim 4, wherein the pump and the non-return valve are integral with the mill tower. 6. A wind and wave energy plant according to claim 1, wherein the mill tower has a foot section in which the turbine and the generator are arranged centrally in continuation of each other, and in which a cast foundation for the mill projects centrally in an upward direction, and that the pump is a piston pump with one or more pistons capable of moving up and down in an area enclosing one or more of the members: turbine, generator or foundation. 7. A wind and wave energy plant according to claim 1, wherein the pump is driven by a wave-actuated elongated element, which extends substantially in a diametral direction in relation to the tower, and which is journalled rotatably around the longitudinal axis of the tower at the foot section of the tower. 8. A wind and wave energy plant according to claim 7, wherein the wave-actuated elongated element has the form of a float. 9. A wind and wave energy plant according to claim 8, wherein the float, in the area around the tower, has a middle area interconnecting two float arms, and wherein the float has a larger cross-section in the middle area than at the outer ends of the float arms. 10. A wind and wave energy plant according to claim 7, wherein the plant includes a sensor (S) for recording the direction of propagation of the waves and a control system (CS) for adjusting the wave-actuated elongated element, depending on the recorded direction and by means of an actuator (A), so that the longitudinal axis of the wave-actuated elongated element is substantially parallel with the wave crests. 11. A wind and wave energy plant, according to claim 1, wherein the foundation of the tower has a downwardly increasing diameter below the sea surface. 12. A wind and wave energy plant according to claim 1, wherein the part of the external wall of the tower located at the sea surface is made of metal, and that means for electrical heating (H) of this part of the outer wall are included. 13. A wave energy plant comprising a wave-actuated water pump, a turbine having an output shaft, and an electric generator, whereby the water pump is in fluid communication with the turbine and the output shaft of the turbine is in driving connection with the electric generator, the wave energy plant including a foundation which is adapted to be firmly anchored to the seabed, whereby the pump is mounted on the foundation and is driven by a wave-actuated elongated element, which is located at the foundation and has a longitudinal axis extending substantially in a horizontal direction, and which is journalled rotatably around and displaceably along a substantially vertical axis. 14. A wave energy plant according to claim 13, wherein the wave-actuated elongated element has the form of a float. 15. A wave energy plant according to claim 13, wherein the wave-actuated elongated element has the form of a float, which, in the area around the foundation, has a middle area interconnecting two float arms, and wherein the float has a larger cross-section in the middle area than at the outer ends of the float arms. 16. A wave energy plant, according to claim 13, wherein the plant includes a sensor (S) for recording the direction of propagation of the waves and a control system (CS) for adjusting the wave-actuated elongated element, depending on the recorded direction and by means of an actuator (A), so that the longitudinal axis of the wave-actuated elongated element is substantially parallel with the wave crests. 17. A wave energy plant according to claim 13, wherein the foundation has a downwardly increasing diameter below the sea surface. 18. A wave energy plant according to claim 13, the part of the external wall of the foundation located at the sea surface is made of metal, and that means for electrical heating (H) of this part of the outer wall are included. 19. A wind and wave energy plant, comprising a windmill with a rotor, a wave-actuated water pump, a turbine having a water inlet and an output shaft, and an electric generator, whereby the water pump is in fluid communication with the turbine and the output shaft of the turbine is in driving connection with the electric generator, the windmill including a tubular mill tower which is adapted to be firmly anchored to the seabed and encloses a storage tank between the sea surface and the mill rotor, which tank has a water supply through the pump via a non-return valve and is in fluid communication with the inlet of the turbine, and the pump being driven by a wave-actuated elongated element, which extends substantially in a diametral direction in relation to the tower, and which is journalled rotatably around the longitudinal axis of the tower at the foot section of the tower.