CN115467780A

CN115467780A - Floating body flow power utilization system and ship using same

Info

Publication number: CN115467780A
Application number: CN202211199342.1A
Authority: CN
Inventors: 孙震; 薛冬梅; 顾时雨; 王星浩
Original assignee: China India Hengsheng Beijing Trading Co ltd
Current assignee: China India Hengsheng Beijing Trading Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2022-12-13

Abstract

The invention describes a floating body flow force utilization system and a ship using the same, comprising: an assembly for extracting energy from wind or seawater and a float for supporting the assembly and using the wind as at least one fluid energy. The assembly has a center of gravity below the water surface and possesses a support structure so as to be able to rotate in any direction relative to the float.

Description

Floating body flow force utilization system and ship using same

Technical Field

The invention discloses a floating fluid force utilization system for an ocean-going vessel or an offshore structure, and a wind-propelled vessel using the system.

Background

As a wind power generation system, a horizontal shaft wind turbine is widely applied to land. In advanced wind energy utilization countries, land that has stable wind energy on land and is suitable for installing wind power generators is becoming more scarce, and must be transferred to installation on oceans that can obtain stable wind energy and have a large area. However, such wind power generator is implemented only by a method of fixedly installing on the sea bed, which is the same as the land installation of the sea area near the shoreline of shallow sea, and the installation depth is about 10m.

Such wind power generators are expected to be further engineered offshore in the future, and therefore it is required to develop a practical method of installation on a floating body. Generally, such wind power generators are constructed for the purpose of transmitting power to the land, and thus it is necessary to supply power using an electric wire. At the same time, it is necessary to install it near the offshore land in order to reduce losses during the transmission.

Disclosure of Invention

The present invention is a floating fluid force utilizing system comprising an assembly for extracting energy from wind or sea water and a floating body supporting the assembly and using the wind force as at least one of the fluid energies, the assembly having a center of gravity disposed below the water surface and being supported by a structure so as to be capable of swinging in any direction relative to the floating body. The assembly includes a force receiving portion that receives a force of a fluid and a column that supports the force receiving portion. And is supported to rotate about a central axis of the support with respect to the floating body, and the force receiving part includes a wind force receiving part receiving wind force in the air. The supporting wind portion includes an upper support column and a lower support column that supports ballast mounted below the water surface. The upper and lower struts are rigid relative to the central axis of the strut and are connected by a bearing. It is characterized in that the device is formed by relative coaxial rotary connection.

A support column according to the present invention is rotatably supported with respect to a floating body around a central axis of the column, and the force receiving unit includes a wind receiving unit receiving an airborne wind force and a horizontal axis turbine or a vertical axis turbine. The horizontal axis water turbine or the vertical axis water turbine is disposed below the water surface as ballast or a part thereof, and the mast includes an upper mast supporting the wind receiving unit and a mast below the water surface. Characterized by comprising a lower bracket for positioning the ballast.

According to the invention, the assembly is in any direction when subjected to fluid forces, since the centre of gravity of the assembly is arranged below the water surface and supported so as to be able to rotate in any direction relative to the float. However, the gravity applied to the center of gravity below the water surface generates a restoring force that attempts to restore the tilt around the rotation shaft supporting portion. This restoring force increases with increasing tilt angle, so that the assembly itself can counteract the overturning moment of the assembly. Therefore, the floating body does not need to bear overturning moment and is not required to be provided with a stay wire, and the purpose of reducing the size of the floating body is achieved. Further, since the assembly is supported so as to be rotatable with respect to the floating body, the inclination of the assembly is not transmitted to the floating body.

As the force receiving portion, a sail receiving wind, a fixed wing, a horizontal or vertical windmill, a tidal force sail receiving tidal force, a keel, a horizontal or vertical turbine, or the like may be used.

Further, the assembly may be rotatable relative to the float by any one of a pin joint, a universal joint, a pillow ball bearing, and an elastomeric support mechanism. According to such a configuration, a large weight assembly can be easily supported on the floating body while allowing the swing. The floating fluid force utilization system uses wind force as at least one of the fluid energies, wherein the force receiving portion includes a wind receiving portion that receives wind force in the air, and the strut is configured to receive the force receiving portion.

Further, the present invention is a wind-propelled marine vessel using the floating fluid force utilization system described above, wherein the floating body is a hull, and the force receiving portion includes a wind receiving portion that receives wind force in the air. The struts include upper struts supporting the wind-receiving portion and lower struts supporting ballast arranged below the water surface, the ballast arranged below the water surface and substantially reduced by the wind force received by the wind-receiving portion. A propeller is provided that rotates about a horizontal axis.

According to this structure, the hull can be pushed by the propeller which rotates about the horizontal axis by the wind force received by the wind receiving portion. At this time, the assembly of the wind receiving portion and the support column is configured to be rotatable with respect to the hull, and the center of gravity of the assembly is located below the water surface, so that the force is sufficiently large to obtain a sufficient thrust. Furthermore, since an independent and stable system is realized, even in the case of non-mooring, towing can be performed after the dock is assembled, thereby greatly reducing the installation cost. Further, by utilizing this characteristic, it is possible to realize an efficient, large-sized wind-propelled ship that can receive sufficient buoyancy as a main thrust for propulsion and that does not overturn even when subjected to a crosswind.

Drawings

FIG. 1 is a schematic diagram of the components of a first embodiment of a floating fluid force utilization system;

fig. 2 is another schematic view of the assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the assembly 12 includes a wind receiving portion 10 installed in the air and receiving wind, a column 11 supporting the wind receiving portion 10, and a floating body 13 supporting the same. The assembly 12 includes a ballast 14 at the lower end of the column 11 for placing the center of gravity 15 of the assembly 12 below the water surface. The buoyant body 13 is connected to the anchor by mooring lines 13 a. As a support structure for rotatably supporting the assembly 12 on the floating body 13, a pin joint, a universal joint, a spherical bracket, an elastic body bracket, or the like can be used.

Referring to fig. 2, the support column 11 has an upper support column 11a supporting the wind receiving part 10, a lower support column 11b supporting the ballast 14, and a spherical part 17 disposed in the middle. The support column 11 is mounted in an opening 13b located substantially in the center of the floating body 13 so as to penetrate the floating body 13. The opening 13b is tapered with an inner diameter increasing toward the bottom. A support bracket 20 for supporting the column 11 is installed at an upper portion of the opening 13 b. The spherical portion 17 is placed on a circular ring-shaped elastic rubber bearing 18, which is similarly formed on the spherical portion 17, and vulcanized and bonded. 19 are placed and cured and bonded. Further, outer end portions of both the

elastic rubber bearings

18 and 19 are vulcanized and bonded to the spherical inner surface 20a of the support base 20. The spherical inner surface 20a forms a concentric sphere having a common center with the spherical portion 17.

The

elastic rubber mounts

18 and 19 are members for building seismic isolation mounts, and the

elastic rubber bearings

18 and 19 are characterized in that they are flexibly deformed under a shearing force but highly rigid under a compression force. Thus, the spherical portion 17 has a circular ring shape with respect to vertical and horizontal movements. Rotation about the center of the spherical portion 17 and the spherical inner surface 20a is flexibly supported by the shear deformation properties of the annular rubber, although severely limited by the compression properties of the rubber.

Claims

1. A floating body flow power utilization system is characterized in that: an assembly for extracting energy from wind or seawater and a float for supporting the assembly and using the wind as at least one fluid energy.

2. The assembly has a center of gravity below the water surface and a support structure so as to be able to rotate in any direction relative to the float; the assembly further includes a force receiving portion receiving a force of the fluid and a strut supporting the force receiving portion and rotatably supported about a central axis of the strut with respect to the floating body.

3. The floating body flow force utilization system of claim 1, wherein the force receiving portion is configured to include a wind receiving assembly that receives an airborne wind force; the support column includes an upper support column supporting the wind-affected portion and a lower support column supporting ballast mounted below the water surface.

4. The floating body flow force utilization system of claim 1, wherein the upper and lower struts are interconnected for relative coaxial rotation by a bearing rigid with respect to a central axis of the strut.

5. The floating body flow force utilization system of claim 1, wherein the force receiving portion is configured to include a wind receiving portion that receives wind force in air, a horizontal axis turbine or a vertical axis turbine; the horizontal axis water turbine or the vertical axis water turbine is arranged below the water surface and is used as a ballast or a part of the ballast; the upper support column and the lower support column are rigidly connected relative to the central axis of the support column and are relatively coaxially and rotatably connected through a bearing; the assembly is supported for rotation relative to the float by any one of a pin joint, a universal joint, a pillow ball bearing, and an elastomeric support mechanism.

6. The floating body flow force utilizing system according to claim 1, wherein: the upper and lower pillars transmitting a rotation operation of one of the upper and lower pillars to the other under a predetermined condition, and transmitting a rotation of one of the upper and lower pillars under other conditions; also includes a component; the assembly includes a rotational energy extraction unit that extracts rotational energy from the force receiving unit, the upper and lower struts being configured to rotate coaxially relative to each other.

7. The floating body flow force utilization system according to claim 1, wherein: wherein the rotational energy extraction units are installed such that torques generated when rotational energy is extracted from the upper and lower support columns cancel each other out; wherein the rotational energy extraction unit is a generator comprising a rotor and a stator; wherein the rotor is connected to one of the upper and lower struts and the stator is connected to the other, the electrical power being generated by a differential between the rotor and the stator.

8. The floating body flow force utilizing system according to claim 1, wherein: the stressed section comprises a lifting vertical axis wind turbine and a dragging vertical axis turbine; wherein the vertical axis wind turbine is activated by rotation of the vertical axis turbine; a ship using a floating body flow force utilizing system, characterized in that: the propeller is arranged under the water surface, the wind power received by the wind power receiving part rotates around a roughly horizontal shaft, and the wind power is used as part of the rotating energy; wherein the propeller is mounted in a ballast; the ballast or lower support column of the ship plays a role of supporting the keel and comprises two assemblies which are arranged at the front part and the rear part of the ship body; the two keels will rotate so as to have an angle of attack in the same direction when driving straight under the action of crosswind, the front end keel and the rear end keel having opposite angles of attack when rotating.