阅读说明：本技术 一种潮流能及河流能的多体发电船 (Multi-body power generation ship capable of generating tidal current energy and river energy ) 是由 王博 石云峰 李桐 于 2019-09-17 设计创作，主要内容包括：本发明提供了一种潮流能及河流能的多体发电船,属于发电设备领域。该潮流能及河流能的多体发电船包括：主船体、至少一个副船体、捕能装置；各个所述副船体分别通过连接装置连接在所述主船体的外侧；发电设备安装在所述连接装置的上表面上；所述捕能装置安装在所述连接装置上；所述捕能装置的上端能够与所述发电设备连接。本发明采用多船体(双船体、三船体或多船体)结构将发电设备设置在水面的上方,增加了发电平台稳定性,使得发电平台更能适应水况差,波浪大的水域,减少了水下维修养护的费用。(The invention provides a multi-body power generation ship capable of generating tidal current energy and river energy, and belongs to the field of power generation equipment. This tidal current energy and river energy's many bodies electricity generation ship includes: the energy capturing device comprises a main hull, at least one auxiliary hull and an energy capturing device; each auxiliary ship body is connected to the outer side of the main ship body through a connecting device; the power generation equipment is arranged on the upper surface of the connecting device; the energy capturing device is arranged on the connecting device; the upper end of the energy capture device can be connected with the power generation equipment. The invention adopts a multi-hull (double-hull, triple-hull or multi-hull) structure to arrange the power generation equipment above the water surface, thereby increasing the stability of the power generation platform, leading the power generation platform to be more suitable for water areas with poor water conditions and large waves and reducing the cost of underwater maintenance.)

1. The utility model provides a tidal current energy and river energy's multi-body electricity generation ship which characterized in that: the multi-body power generating ship for tidal current energy and river energy comprises: the energy capturing device comprises a main hull, at least one auxiliary hull and an energy capturing device;

each auxiliary ship body is connected to the outer side of the main ship body through a connecting device;

the power generation equipment is arranged on the upper surface of the connecting device;

the energy capturing device is arranged on the connecting device;

the upper end of the energy capture device can be connected with the power generation equipment.

2. The multi-hull power generating vessel capable of tidal current energy and river energy according to claim 1, wherein: the energy capture device comprises: the device comprises an impeller, an underwater rotating shaft, an overwater rotating shaft, a connecting arm and a flexible transmission part;

the connecting arm is of a shell structure, and outlets are respectively arranged at the upper end and the lower end of the connecting arm;

the water rotating shaft is arranged at the upper part of the inner cavity of the connecting arm, and one end of the water rotating shaft extends out of an outlet at the upper end of the connecting arm and then is connected with the power generation equipment;

the underwater rotating shaft is arranged at the lower part of the inner cavity of the connecting arm, and one end of the underwater rotating shaft extends out of an outlet at the lower end of the connecting arm and then is connected with the impeller;

the overwater rotating shaft and the underwater rotating shaft are arranged in parallel and connected through a flexible transmission part;

the flexible transmission part is positioned in the inner cavity of the connecting arm.

3. The multi-hull power generating vessel capable of tidal current energy and river energy according to claim 2, wherein: the plane where the blades of the impeller of the energy capturing device are located is a vertical plane and is perpendicular to the vertical plane where the central axis of the main ship body is located.

4. The multi-hull power generating vessel capable of tidal current energy and river energy according to claim 2, wherein: the flexible transmission part adopts a belt, a rope or a flexible chain;

the flexible transmission component is an integral component which is connected end to end, the lower part of the flexible transmission component is spirally wound on the underwater rotating shaft, and the upper part of the flexible transmission component is spirally wound on the overwater rotating shaft;

or the flexible transmission part adopts N parallel chains, and N is more than or equal to 2; n fluted discs coaxial with the overwater rotating shaft are installed on the overwater rotating shaft, and N fluted discs coaxial with the underwater rotating shaft are installed on the underwater rotating shaft; the upper part of each chain bypasses the fluted disc on the overwater rotating shaft, and the lower part bypasses the fluted disc on the underwater rotating shaft.

5. The multi-hull power generating vessel capable of tidal current energy and river energy according to claim 1, wherein: a middle flow guide device is arranged in front of the energy capturing device and is arranged on the connecting device;

the middle diversion device comprises a plurality of diversion plates and/or arresting nets;

the central axes of the guide plates are positioned in the same plane, and the plane is parallel to the plane where the blades of the energy capture device are positioned; the plane where each guide plate is located is a vertical plane and is vertical to the plane where the blades of the energy capture device are located;

the plane of the arresting net is parallel to the plane of the blades of the energy catching device and is positioned in front of the blades.

6. The multi-hull power generating vessel capable of tidal current energy and river energy according to claim 1, wherein: the guide plate adopts the right trapezoid structure, right trapezoid's upper base is located the below, and the lower base is located the top, forms decurrent angle, and this decurrent angle is for meeting the position of flowing, and rivers earlier through the decurrent angle of guide plate promptly, then flow toward the rear of guide plate.

7. The multi-hull power generating vessel capable of tidal current energy and river energy according to claim 5, wherein:

the barrier net adopts a rigid filter net, and the size of the meshes of the rigid filter net is more than or equal to 5cm by 5 cm.

8. The multi-hull power generating vessel capable of tidal current energy and river energy according to claim 5, wherein: the energy capturing device and the middle diversion device are respectively arranged on the connecting device through a lifting structure;

the lifting structure adopts a hydraulic lifting rod or a pneumatic lifting rod;

or the liftable structure comprises an inner supporting rod and an outer cylinder; the inner supporting rod and the outer cylinder are mounted on the connecting device and are arranged coaxially; the lower end of the inner supporting rod is fixedly connected to the upper end face of the connecting device, and the inner supporting rod is perpendicular to the upper end face of the connecting device; the outer cylinder is sleeved on the inner support rod and can reciprocate along the length direction of the inner support rod; the outer barrel is provided with a threaded hole, a fastening bolt is installed in the threaded hole, the inner support rod is provided with a plurality of threaded holes along the length direction, and the upper end of the energy capturing device or the middle diversion device is connected with the outer barrel;

or the lifting structure adopts a positioning hinge; a groove is formed in the connecting device, and the upper end of the energy capturing device or the upper end of the middle flow guide device are connected with the connecting device through positioning hinges arranged on two sides of the groove;

or the lifting structure adopts a turnover frame and a positioning hinge, the turnover frame is of a frame structure, the upper end of the turnover frame is connected to the connecting device through the positioning hinge, and the lower end of the turnover frame is connected with the energy capturing device or the middle diversion device.

9. The multi-hull power generating vessel capable of tidal current energy and river energy according to claim 1, wherein: the rear part of the main ship body is provided with a tail flow guide device;

the tail guide device comprises two tail guide plates;

the two tail guide plates are symmetrically arranged on two sides of the tail of the main ship body.

10. The multi-hull power generating vessel capable of tidal current energy and river energy according to any one of claims 1 to 9, wherein: the connecting device adopts a flat plate or a truss, one end of the connecting device is connected with the main ship body, and the other end of the connecting device is connected with the upper surface of the auxiliary ship body;

a power generation housing is mounted on the upper surface of the connecting device;

the power generation equipment is arranged in the inner cavity of the power generation shell;

the power generation equipment comprises a generator set or comprises speed change equipment and a generator set;

and an overwater rotating shaft of the energy capturing device penetrates through the power generation shell and then is connected with power generation equipment.

Technical Field

The invention belongs to the field of power generation equipment, and particularly relates to a multi-body power generation ship capable of generating tidal current energy and river energy.

Background

Ocean energy and river energy have the advantages of large development potential, green and clean sustainable utilization and the like, the ocean energy and river energy are developed and utilized to have important significance for relieving energy crisis and environmental pollution problems, and the tidal current energy power generation becomes an active branch in the technical field of new energy power generation, and has important practical significance for relieving energy shortage and reducing environmental pollution.

The existing ocean power generation device is generally that power generation equipment (a generator set and speed change equipment) is directly placed under water and connected with an energy capturing device. The hub main shaft of the impeller in the energy capturing device is directly connected with the generator or connected with the generator through the speed changing device and is placed under water, although the device better realizes power generation and reduces power generation loss. However, the power generation equipment needs to be immersed in water for a long time, and higher requirements are inevitably put forward to the power generation equipment, for example, a generator set, a speed change gear box, a hub main shaft and the like need to be sealed so as to prevent water from corroding and damaging the speed change equipment and the generator set, the input cost is greatly increased due to the overhigh equipment sealing requirement, and in addition, if the generator enters water, the generator cannot be maintained and needs to be replaced by a new generator.

Moreover, the power generation equipment has huge structure of the underwater equipment underwater, and can only be maintained underwater or after the underwater equipment is lifted out of the water surface by using larger lifting equipment, so that the later maintenance cost is huge and the maintenance time is long.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provide a multi-body power generation ship with tidal current energy and river energy, wherein power generation equipment is arranged on a ship body, namely the ship body is not immersed in water, so that the stability of a power generation platform is improved, and the cost of underwater maintenance is reduced.

The invention is realized by the following technical scheme:

a multi-hull power generating ship capable of tidal current energy and river energy comprises: the energy capturing device comprises a main hull, at least one auxiliary hull and an energy capturing device;

each auxiliary ship body is connected to the outer side of the main ship body through a connecting device;

the power generation equipment is arranged on the upper surface of the connecting device;

the energy capturing device is arranged on the connecting device;

the upper end of the energy capture device can be connected with the power generation equipment.

The energy capture device comprises: the device comprises an impeller, an underwater rotating shaft, an overwater rotating shaft, a connecting arm and a flexible transmission part;

the connecting arm is of a shell structure, and outlets are respectively arranged at the upper end and the lower end of the connecting arm;

the water rotating shaft is arranged at the upper part of the inner cavity of the connecting arm, and one end of the water rotating shaft extends out of an outlet at the upper end of the connecting arm and then is connected with the power generation equipment;

the underwater rotating shaft is arranged at the lower part of the inner cavity of the connecting arm, and one end of the underwater rotating shaft extends out of an outlet at the lower end of the connecting arm and then is connected with the impeller;

the overwater rotating shaft and the underwater rotating shaft are arranged in parallel and connected through a flexible transmission part;

the flexible transmission part is positioned in the inner cavity of the connecting arm.

The plane where the blades of the impeller of the energy capturing device are located is a vertical plane and is perpendicular to the vertical plane where the central axis of the main ship body is located.

The flexible transmission part adopts a belt, a rope or a flexible chain;

the flexible transmission component is an integral component which is connected end to end, the lower part of the flexible transmission component is spirally wound on the underwater rotating shaft, and the upper part of the flexible transmission component is spirally wound on the overwater rotating shaft;

or the flexible transmission part adopts N parallel chains, and N is more than or equal to 2; n fluted discs coaxial with the overwater rotating shaft are installed on the overwater rotating shaft, and N fluted discs coaxial with the underwater rotating shaft are installed on the underwater rotating shaft; the upper part of each chain bypasses the fluted disc on the overwater rotating shaft, and the lower part bypasses the fluted disc on the underwater rotating shaft.

Preferably, a middle flow guide device is arranged in front of the energy capturing device and is arranged on the connecting device;

the middle diversion device comprises a plurality of diversion plates and/or arresting nets;

the central axes of the guide plates are positioned in the same plane, and the plane is parallel to the plane where the blades of the energy capture device are positioned; the plane where each guide plate is located is a vertical plane and is vertical to the plane where the blades of the energy capture device are located;

the plane of the arresting net is parallel to the plane of the blades of the energy catching device and is positioned in front of the blades.

Preferably, the guide plate is of a right-angled trapezoid structure, the upper bottom of the right-angled trapezoid is located below, the lower bottom of the right-angled trapezoid is located above, a downward angle is formed, and the downward angle is a stream-facing position, namely, water flows through the downward angle of the guide plate first and then flows towards the rear of the guide plate;

the barrier net adopts a rigid filter net, and the size of the meshes of the rigid filter net is more than or equal to 5cm by 5 cm.

The energy capturing device and the middle diversion device are respectively arranged on the connecting device through a lifting structure;

the lifting structure adopts a hydraulic lifting rod or a pneumatic lifting rod;

or the liftable structure comprises an inner supporting rod and an outer cylinder; the inner supporting rod and the outer cylinder are mounted on the connecting device and are arranged coaxially; the lower end of the inner supporting rod is fixedly connected to the upper end face of the connecting device, and the inner supporting rod is perpendicular to the upper end face of the connecting device; the outer cylinder is sleeved on the inner support rod and can reciprocate along the length direction of the inner support rod; the outer barrel is provided with a threaded hole, a fastening bolt is installed in the threaded hole, the inner support rod is provided with a plurality of threaded holes along the length direction, and the upper end of the energy capturing device or the middle diversion device is connected with the outer barrel;

or the lifting structure adopts a positioning hinge; a groove is formed in the connecting device, and the upper end of the energy capturing device or the upper end of the middle flow guide device are connected with the connecting device through positioning hinges arranged on two sides of the groove;

or the lifting structure adopts a turnover frame and a positioning hinge, the turnover frame is of a frame structure, the upper end of the turnover frame is connected to the connecting device through the positioning hinge, and the lower end of the turnover frame is connected with the energy capturing device or the middle diversion device.

The rear part of the main ship body is provided with a tail flow guide device;

the tail guide device comprises two tail guide plates;

the two tail guide plates are symmetrically arranged on two sides of the tail of the main ship body.

The connecting device adopts a flat plate or a truss, one end of the connecting device is connected with the main ship body, and the other end of the connecting device is connected with the upper surface of the auxiliary ship body;

a power generation housing is mounted on the upper surface of the connecting device;

the power generation equipment is arranged in the inner cavity of the power generation shell;

the power generation equipment comprises a generator set or comprises speed change equipment and a generator set;

and an overwater rotating shaft of the energy capturing device penetrates through the power generation shell and then is connected with power generation equipment.

Compared with the prior art, the invention has the beneficial effects that: the invention adopts a multi-hull (double-hull, triple-hull or multi-hull) structure to arrange the power generation equipment above the water surface, thereby increasing the stability of the power generation platform, leading the power generation platform to be more suitable for water areas with poor water conditions and large waves and reducing the cost of underwater maintenance.

Drawings

FIG. 1 is a front perspective view of a multi-hull power generating vessel for tidal current energy and river energy in accordance with the present invention;

FIG. 2 is a rear perspective view of the multi-hull tidal current and river energy generating vessel of the present invention;

FIG. 3 is a perspective view of an energy capture device in the multi-hull vessel for tidal and river energy in accordance with the present invention;

FIG. 4 is a perspective view of a plurality of middle deflector assemblies in the multi-hull vessel for tidal current and river energy in accordance with the present invention;

FIG. 5 is a front view of a single middle deflector in the multi-hull vessel for tidal and river power of the present invention;

FIG. 6 is a perspective view of a tail deflector in the multi-hull vessel for tidal and river energy in accordance with the present invention;

FIG. 7 is a schematic structural diagram of a transmission device of an energy catching device in a multi-body power generating ship capable of generating tidal current energy and river energy according to the invention;

fig. 8 is a schematic structural diagram of the middle guide plate and the energy capturing device in the multi-body power generating ship for tidal current energy and river energy, which are folded upwards.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings:

as shown in fig. 1 and 2, the multi-hull power generating ship of tidal current energy and river energy of the present invention includes a main hull 2, at least one sub-hull 1, a middle diversion device 3, a tail diversion device 4, and an energy capturing device 5.

The individual sub-hulls 1 are connected to the outside of the main hull 2 by means of connection devices 6, respectively, and if two sub-hulls are used, the two sub-hulls 1 can be arranged symmetrically on both sides of the main hull 2, as shown in fig. 1.

Each of the connecting devices 6 is a flat plate or a truss, one end of each connecting device is connected with the main hull 2, and the other end of each connecting device is connected with the upper surface of the auxiliary hull 1. The main hull and the auxiliary hull can enable the connecting device to be located on the water surface, so that the whole power generation equipment floats on the water and is convenient to move in the water.

Install the electricity generation casing on connecting device's the upper surface install power generation equipment in the inner chamber of electricity generation casing, power generation equipment includes generating set or includes speed change gear and generating set etc.. The upper end of the energy capturing device penetrates through the power generation shell and then is connected with the power generation equipment, and specifically, the upper end of the energy capturing device is connected with the power generation unit through the speed change equipment or is directly connected with the power generation unit. The speed changing device and the generator set can be connected by the existing device, and the energy capturing device and the power generation device can be connected by the existing device, which is not described herein again. When generating electricity, the middle diversion device 3 and the energy capturing device 5 are both positioned below the connecting device.

As shown in fig. 8, the energy capturing device 5 is mounted on the connecting device 6 through a lifting structure, so that the installation and construction are convenient, the underwater maintenance and maintenance are avoided as much as possible, and the platform is convenient to move and place. The liftable structure can adopt various existing liftable structures, and the specific embodiment is as follows:

the first embodiment is as follows:

the lifting structure comprises a hydraulic lifting rod (or a pneumatic lifting rod), specifically, the hydraulic lifting rod (or the pneumatic lifting rod) is installed on the connecting device 6, the energy capturing device is connected with the hydraulic lifting rod (or the pneumatic lifting rod), when the energy capturing device is disconnected with the power generation equipment, the energy capturing device is lifted out of water by using the hydraulic lifting rod (or the pneumatic lifting rod), and after maintenance is finished or the energy capturing device is moved in place, the energy capturing device is put into water by using the hydraulic lifting rod (or the pneumatic lifting rod).

Example two:

the liftable structure comprises an inner supporting rod and an outer cylinder. Specifically, the inner supporting rod and the outer cylinder are mounted on the connecting device and coaxially arranged, the lower end of the inner supporting rod is fixedly connected to the upper end face of the connecting device, the inner supporting rod is perpendicular to the upper end face of the connecting device, the outer cylinder is sleeved on the inner supporting rod and can reciprocate along the length direction of the inner supporting rod, a threaded hole is formed in the outer cylinder, a fastening bolt is mounted in the threaded hole, a plurality of threaded holes are formed in the inner supporting rod along the length direction, the upper end of the energy capturing device is connected with the outer cylinder (for example, the energy capturing device can be connected through threads or other connecting modes), when the outer cylinder moves upwards along the length direction of the inner supporting rod, the energy capturing device can be lifted out of the water, and after the energy capturing device is lifted in place, the energy capturing device can be fixed by screwing the fastening bolt into the threaded hole in the, when the fastening bolts are loosened, the outer barrel moves downwards along the length direction of the inner support rod, the energy capturing device can be placed under water, and after the energy capturing device is placed in place, the fastening bolts are screwed down to the other threaded hole in the inner support rod, so that the energy capturing device can be fixed.

Example three:

as shown in fig. 8, the lifting structure employs a positioning hinge, and the positioning hinge employs various positioning hinges capable of realizing positioning at 0-180 degrees. Specifically, the connecting device is provided with a groove, the upper end of the energy capturing device is connected with the connecting device through positioning hinges arranged on two sides of the groove (for example, lifting lugs can be arranged on two sides of the connecting arm of the energy capturing device, and the lifting lugs are connected with the connecting device through the positioning hinges).

Example four:

the lifting structure adopts a turnover frame and a positioning hinge, the turnover frame is of a frame structure, the upper end of the turnover frame is connected to the connecting device through the positioning hinge, the lower end of the turnover frame is connected with the energy capturing device, when the lower end of the turnover frame is turned over to the upper part of the connecting device, the energy capturing device connected to the turnover frame is also located above the connecting device, and when the lower end of the turnover frame is turned over to the lower part of the connecting device, the energy capturing device connected to the turnover frame is also located below the connecting device, so that the situation that a groove needs to be formed in the connecting device as in the third embodiment can be avoided.

Specifically, the structure of the energy capturing device is shown in fig. 3 and 7, and comprises an impeller, an underwater rotating shaft, an above-water rotating shaft, a connecting arm and a flexible transmission part; the linking arm is shell structure the upper end and the lower extreme of linking arm are equipped with the export respectively, the axis of rotation on water is installed the upper portion of the inner chamber of linking arm (the connected mode of axle and casing adopt current multiple mode can, for example the bearing etc.), and its one end passes after stretching out from the export of linking arm upper end the electricity generation casing is connected with the power generation facility in the electricity generation casing inner chamber, the axis of rotation is installed under water the lower part of the inner chamber of linking arm (the connected mode of axle and casing adopt current multiple mode can, for example the bearing etc.), and its one end is connected with the impeller after stretching out from the export of linking arm lower extreme. The overwater rotating shaft and the underwater rotating shaft are arranged in parallel; the two are connected through a flexible transmission component. The flexible transmission part is positioned in the inner cavity of the connecting arm. The flexible transmission part adopts a belt, a rope, a metal flexible chain and other equivalent flexible transmission parts. In order to increase the sealing effect, an oil seal can be adopted between the underwater rotating shaft and the lower end outlet of the connecting arm.

Specifically, flexible transmission part is a whole, and carries out the spiral winding respectively in two axis of rotation, use the rope as an example, with the lower part spiral winding of an end to end's rope on the axis of rotation under water, upper portion spiral winding is on the axis of rotation on water, form the tensile force with the axis of rotation on water, when the axis of rotation is rotatory under water, drive flexible transmission part and carry out the spiral winding at the axis of rotation under water, flexible transmission part carries out the spiral winding at the axis of rotation on water simultaneously, it is rotatory to drive the axis of rotation on water, the moment of torsion transmission of the axis of rotation under water in the device of will catching can drive the power generation facility electricity. During actual installation, can leave flexible drive disk assembly's tail end, then with flexible drive disk assembly's head end spiral winding on the axis of rotation on water, the head end is from the axis of rotation winding on water back spiral winding under on the axis of rotation under water, and the axis of rotation winding under water is followed and is come out back and be linked into an organic whole with flexible drive disk assembly's tail end, forms a whole.

Or, the flexible transmission component adopts N parallel chains 9, N is greater than or equal to 2, specifically, as shown in fig. 7 (3 chains are adopted in fig. 7), N toothed discs coaxial with the flexible transmission component are installed on the overwater rotating shaft (the toothed discs and the shafts adopt the existing connection mode), and N toothed discs coaxial with the flexible transmission component are installed on the underwater rotating shaft (the toothed discs and the shafts adopt the existing connection mode); the chain transmission mechanism is characterized in that N parallel chains are arranged, the upper portion of each chain is wound around the toothed disc on the overwater rotating shaft, the lower portion of each chain is wound around the toothed disc on the underwater rotating shaft, the N chains are driven to rotate simultaneously when the underwater rotating shafts rotate, and the chains drive the overwater rotating shafts to rotate. Therefore, the torque of the underwater rotating shaft of the energy capturing device is transmitted to the overwater rotating shaft to drive the speed change gear box or the generator set to generate power.

Further, in order to block or guide the foreign matters in the water to slide out of the lower surface of the energy capture device and reduce the damage and winding of the foreign matters in the water on impeller blades of the energy capture device, a middle diversion device 3 is arranged in front of the energy capture device 5 (with reference to the water flow direction, the water flow flows from the middle diversion device 3 to the energy capture device 5). As shown in fig. 4, the central diversion device 3 includes a plurality of diversion plates or blocking nets, and the diversion plates and the blocking nets play the same role, and either one or both of them may be used according to the requirement.

The plane where the blades of the impeller of the energy capturing device are located is a vertical plane and is vertical to the vertical plane where the central axis of the main ship body is located, the planes where the central axes of all the guide plates are located (the central axes of all the guide plates are located in the same plane) are parallel to the plane where the blades of the energy capturing device are located, the plane where each guide plate is located is a vertical plane and is vertical to the plane where the blades of the energy capturing device are located, and a flow collecting effect is formed among the guide plates to increase the flow rate of water, so that the power generation efficiency is improved; meanwhile, as shown in fig. 5, the incident flow position of the guide plate has a downward angle, that is, a right-angled trapezoid structure is adopted, the upper bottom of the trapezoid is located below, and the lower bottom of the trapezoid is located above, so that a downward angle is formed. Can block foreign matters in water or guide the foreign matters in water to slide out of the lower part of the energy catching device, and reduces the damage and the winding of the blades of the energy catching device caused by the foreign matters in water.

The barrier net plays a role in blocking foreign matters in water, the plane of the barrier net is parallel to the plane of the blades of the energy catching device and is positioned in front of the blades, and water flow firstly passes through the barrier net and then passes through the blades. The barrier net can adopt a rigid filter net, the type of the filter net can be selected according to needs, and preferably, the size of the meshes of the filter net is more than or equal to 5cm by 5 cm.

In order to better function as a barrier to foreign bodies in water, the lowest position of the deflector or the arresting net is flush with or lower than the lowest position of the energy capture device.

The guide plate and the blocking net are both arranged on the connecting device 6 through a lifting structure. Each guide plate can be lifted independently or lifted as a whole, and the lifting structure can be the same as the lifting structure connected with the energy capturing device, for example, the structures shown in the first to fourth embodiments. When the lifting structure adopts the positioning hinge, the connecting device is correspondingly grooved. When the power generation is carried out, the guide plate and the blocking net are arranged under water, and when the power generation needs to be moved or maintained, the guide plate and the blocking net are arranged on the water surface, so that the underwater operation is avoided.

As shown in fig. 6, the tail diversion device 4 is installed at the rear part of the main hull, the tail diversion device 4 comprises two tail diversion plates which are respectively and symmetrically arranged at two sides of the tail part of the main hull, and the two tail diversion plates keep the direction of the hull consistent with the direction of water flow. If the included angle of two planes at which the two tail guide plates are arranged is too large, the guide plates are too close to the water surface under the condition of large stormy waves, the influence of the guide plates on the waves is large, and if the included angle is too small, the flow guide effect is not obvious, so that the included angle can be designed to be 60 degrees to 120 degrees.

By utilizing the invention, the power generation equipment is arranged above the water surface, so that the damage of the speed change gear box and the generator set caused by the problems of poor sealing and the like is avoided; and meanwhile, low-flow-rate starting can be realized.

The above-described embodiment is only one embodiment of the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be easily made based on the application and principle of the present invention disclosed in the present application, and the present invention is not limited to the method described in the above-described embodiment of the present invention, so that the above-described embodiment is only preferred, and not restrictive.