CN216306121U - Semi-submersible bidirectional power takeoff tidal power generation device - Google Patents
Semi-submersible bidirectional power takeoff tidal power generation device Download PDFInfo
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- CN216306121U CN216306121U CN202123121009.2U CN202123121009U CN216306121U CN 216306121 U CN216306121 U CN 216306121U CN 202123121009 U CN202123121009 U CN 202123121009U CN 216306121 U CN216306121 U CN 216306121U
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- 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
- Y02E10/20—Hydro energy
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- 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
Abstract
The utility model discloses a semi-submersible bidirectional power takeoff tidal current power generation device which comprises a mounting frame and a rotating shaft arranged on the mounting frame, wherein the rotating shaft is parallel to a water surface, a power takeoff plate is arranged on the rotating shaft, and water flow pushes the power takeoff plate to rotate through the rotating shaft; the power take-off plate comprises a main push plate and two side plates, the two side plates are respectively arranged on two sides of the main push plate, the heights of the two side plates on two sides of the main push plate are higher than the plate surface of the main push plate, water flow impacts the plate surface of the upstream surface of the main push plate to form a thrust surface, the side plates on two sides of the thrust surface form a boosting vertical surface, and the side plates on two sides of the downstream surface form a flow guide vertical surface. The utility model finally realizes the stable power generation of the low-flow-rate tidal current, solves the problems that the traditional low-flow-rate condition cannot be driven, or the conversion rate after driving can only reach 20 percent at most without the significance of actual power generation, realizes the normal driving of the low flow rate, and the conversion rate can reach about 46 percent.
Description
Technical Field
The utility model relates to a semi-submersible bidirectional power takeoff tidal current power generation device, and belongs to the technical field of water flow power generation.
Background
Under the condition of low flow velocity of ocean current, the existing ocean current power generation device has the problems that the existing ocean current power generation device cannot be driven or is driven but the work conversion rate is too low, so that the existing ocean current power generation device has no practical significance, for example, the CN200510055300.0 running water hydroelectric generator designed by the applicant in the early stage comprises a water wheel, a generator, a gearbox and a lifting flat plate; the water wheel is a vertical water wheel, the wheel shaft of the water wheel is horizontal, a driving wheel is further fixed on the wheel shaft, two ends of the wheel shaft are arranged on bearing blocks, the bearing blocks at the two ends are respectively and fixedly arranged on the two lifting flat plates, and the lower part of the water wheel is positioned below the water surface; the gear of the gearbox is meshed with a driving wheel on the water wheel rotating shaft and a main shaft of the generator; the gearbox and the generator are also fixed on the lifting flat plates, and the two lifting flat plates are respectively arranged on the platforms of the two upright posts. Although the water wheel can rotate as long as it is pushed in running water, at low flow rates it cannot be loaded, or in other words its ability to be loaded has no practical significance for generating electricity.
For another example: CN201510160297.2 an arrangement type floating flowing water power generation device, comprising a water wheel set, a transmission component and a power generation component which are arranged on a floating frame, wherein the water wheel set is connected with the transmission component through a transmission piece arranged on a water wheel shaft, and the transmission component is connected with the power generation component; the water wheel group is formed by installing a plurality of water wheels on the floating frame in a manner of mutually parallel in the water flow direction at intervals; the water wheel at least comprises a water wheel shaft and impeller blades arranged on the water wheel shaft. In a sea test, the low flow rate condition cannot be driven, or the conversion rate after driving can only reach 20 percent at most, and the significance of actual power generation is not realized (industrialization).
In order to solve the problem, research and development personnel provide a low-flow-rate tidal current energy power generation device which is used for solving the problem of how natural low-flow-rate tidal current can be utilized. How to solve the problem of low conversion rate becomes a difficult problem for preventing the research and development of the people, and no related technical report in the prior art can be referred to.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem of low conversion rate, research and development personnel improve and test all involved links, the result is still not greatly improved, the force taking structure is finally determined to be attacked or compromised through the test comparison of the links, the existing force taking structure is mainly a plate-shaped structure, the situation that no breakthrough exists is found after various research and tests are carried out on the plate-shaped structure, and whether the plate-shaped structure has a problem or not is considered, so that the cylindrical structure is tested according to a fluid principle, the effect that the cylindrical structure has no plate-shaped structure is good through the test, the research and development personnel are more confused, after the fluid medium of seawater is analyzed for many times, the research and development personnel finally find a method for improving the open area flowing water power generation capacity which is far higher than the conversion rate of the existing structure, and the ideal force taking effect is obtained.
The technical means adopted by the utility model for realizing the technical purpose is as follows: a semi-submersible bidirectional power takeoff tidal current power generation device comprises a mounting frame and a rotating shaft arranged on the mounting frame, wherein the rotating shaft is parallel to a water surface, a power takeoff plate is arranged on the rotating shaft, and water flow pushes the power takeoff plate to rotate through the rotating shaft; the power take-off plate comprises a main push plate and two side plates, the two side plates are respectively installed on two sides of the main push plate, the heights of the two side plates on two sides of the main push plate are higher than the plate surface of the main push plate, water flow impacts the plate surface of the upstream surface of the main push plate to form a thrust surface, the side plates on two sides of the thrust surface form a boosting vertical surface, and the side plates on two sides of the downstream surface form a flow guide vertical surface.
In tidal flow, the upstream surface of the power take-off plate is a thrust surface, a boosting vertical surface is arranged on the thrust surface of the power take-off plate, a flow guide vertical surface is arranged on the back surface of the power take-off plate, the boosting vertical surface and the thrust surface are non-parallel surfaces, the height between one end of the boosting vertical surface and the installation end of the thrust surface is greater than zero, when water flow impacts a main thrust surface, the height forms boosting force between the main thrust surface and the boosting vertical surface, the flow guide vertical surface and the back surface are non-parallel surfaces, and the height between one end of the flow guide vertical surface and the installation end of the back surface is greater than zero, so that the flow guide vertical surface has a length which extends the flowing water with the backward thrust surface behind a vortex formed on the back surface, thereby weakening the vortex resistance and improving the power take-off conversion rate. In one-way flowing water, it is feasible to provide no boosting elevation, and it is preferable to provide a boosting elevation, while in two-way flowing water such as tide, it is not feasible to provide a boosting elevation, because the change of the upstream surface can cause the thrust surface and the back surface to be interchanged, researchers first find that the prior art directly adopts the flat plate for force taking, seems to maximize the force taking area, and actually, if the force-taking area is too large, the water will bypass the obstacle (force-taking plate) before reaching, and the flow velocity of the water impinging on the force-taking plate will decrease, meanwhile, the water flow can bypass the thrust surface of the thrust plate to form reverse thrust vortex on the back water surface to offset the thrust, therefore, after the power generation device does not work in low-speed running water or is hung with a generator load, research and development personnel firstly redesign the power take-off plate after finding the problem, increase the flow guide vertical surface and the boosting vertical surface and realize the improvement of the power take-off conversion rate.
Further, the boosting vertical surface and the flow guide vertical surface are equal in height. In one-way flowing water, the height of the boosting vertical face and the height of the flow guiding vertical face can be different, and the structures of the boosting vertical face and the flow guiding vertical face can also be different, while in tidal flowing water, the height design of the boosting vertical face and the flow guiding vertical face must be the same due to the two-way effect, even if the structures of the boosting vertical face and the flow guiding vertical face are different. The design of the power takeoff plate pursues simple structure and easy processing, so a plate structure is adopted, water flow impacts on the upstream face of a main push plate, the water flow impacts on the bottom of a concave shape firstly due to the concave shape formed by the main push plate and a side plate on the upstream face, then the water flow turns back, and a larger thrust is formed in the concave surface, so the power takeoff plate is a structure which is beneficial to bringing the water flow into the power takeoff plate to enhance the power takeoff (research and development personnel find that in an open water area, when the water flow is blocked, the water flow can actively bypass and block the flow away, therefore, for a plane power takeoff plate, the flowing water meets the power takeoff plate, the flowing water can be shunted to two sides at a distance before the plate, and when the flowing through the power takeoff plate, a vortex can be tightly attached to the plate surface to reversely push the power takeoff plate, so that the power takeoff is consumed and counteracted); the side plates positioned on the two sides of the backing surface play a role of a guide plate, water shunted from the two sides of the force taking plate is directly guided away, a vortex cannot be directly formed on the surface of the backing surface, but the vortex extends backwards, and the counter thrust cannot be directly applied to the force taking plate.
Furthermore, the side plates are vertically arranged on one side end face of the main push plate, and the two side plates and the cross section of the main push plate form an H shape.
Furthermore, a water discharging structure is arranged on the main push plate surface of the force taking plate, and the water discharging structure penetrates through the force taking plate, so that water flow of the main push surface directly flows out of the water discharging structure to the back water surface. The water discharge structure can solve the problem of excessively reduced flow velocity on the back surface of the power take-off plate, and although the water take-off area seems to be reduced, the conversion efficiency can be substantially improved.
Furthermore, the water discharging structure comprises a plurality of water discharging through grooves which are square through grooves or round through grooves.
Furthermore, the water discharging structure also comprises a discharge assisting structure arranged between two adjacent water discharging through grooves, the discharge assisting structure is provided with bulges which gradually rise from the two water discharging through grooves to the middle part, and the bulges are triangular bodies or are composed of two convex circular arcs which gradually rise from the positions of the respective water discharging through grooves to the middle part.
Furthermore, two or three force taking plates are uniformly arranged on the same circumference of the rotating shaft to form a force taking plate group, when the force taking plate group is two force taking plates, the included angle between the two plates is 180 degrees, and when the force taking plate group is three force taking plates, the included angle between the two adjacent plates is 120 degrees. Because on same rivers direction, when two or more boards of getting power appear simultaneously, the water between two adjacent boards can form the water and isolate and not flow, consumes the external thrust of getting the power board, influences the whole effect of getting power. The setting is 180 degrees, one force taking plate enters water, and the other force taking plate is exposed out of the water surface, so that mutual influence is avoided; when the power-taking water wheel is large, because the radius is increased, when one power-taking plate enters water, the other power-taking plate is close to the water outlet, and the distance between the power-taking plate and the water outlet is long, so that the influence is small, and the power-taking water wheel can be set at 120 degrees.
Furthermore, a plurality of force taking plate groups are arranged on different circumferential positions of the rotating shaft, the force taking plates on two adjacent force taking plate groups are arranged in a staggered mode, the force taking plates are vertically arranged on the rotating shaft, and the rotating shaft is arranged in the installation frame in a direction parallel to the water surface, so that the upstream surface of each force taking plate is perpendicular to the water flow. The force taking plates which are arranged on the whole rotating shaft in a staggered mode can enter water at different time to take force, the force taking plates can always take force in the water, and the problem of stable continuity of stress of the whole device is solved.
The utility model has the beneficial effects that:
1. the utility model provides a can effectively adapt to power takeoff structure of low velocity of flow, solved simultaneously power takeoff structure self because of mutual interference and vortex etc. cause can't power takeoff to and the problem of reducing the velocity of flow that the stream of streaming brought, finally realize that low velocity of flow trend can steadily generate electricity.
2. The problem that the existing low-flow-rate condition cannot be driven, or the conversion rate after driving can only reach 20% at most without the significance of actual power generation is solved, the low-flow-rate normal driving is realized, and the conversion rate can reach about 46%.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic diagram of a power take-off plate structure according to the present invention;
FIG. 2 is a schematic diagram of the water discharging structure of the force taking plate belt of the present invention;
fig. 3 is a schematic view of the mounting structure of the present invention.
In the figure: 1. the power taking plate comprises a power taking plate 11, a main push plate 12, a side plate 13, a water discharging structure 14, a water discharging through groove 15, a water discharging assisting structure 2, a rotating shaft 3, an installation frame 31, an outer fixing frame 32, an inner adjusting frame 33, an adjusting groove 34, an adjusting support frame 35, an inner frame 36, a buoy 37, a speed increaser and a generator.
Detailed Description
Example 1
The semi-submersible bidirectional power takeoff tidal current power generation device shown in fig. 1 comprises a mounting frame and a rotating shaft arranged on the mounting frame, wherein the rotating shaft is parallel to a water surface, a power takeoff plate is arranged on the rotating shaft, and water flow pushes the power takeoff plate to rotate through the rotating shaft; in tidal flow, the upstream surface of the power take-off plate is a thrust surface, a boosting vertical surface is arranged on the thrust surface of the power take-off plate, a flow guide vertical surface is arranged on the back surface of the power take-off plate, the boosting vertical surface and the thrust surface are non-parallel surfaces, the height between one end of the boosting vertical surface and the installation end of the thrust surface is greater than zero, when water flow impacts a main thrust surface, the height forms boosting force between the main thrust surface and the boosting vertical surface, the flow guide vertical surface and the back surface are non-parallel surfaces, and the height between one end of the flow guide vertical surface and the installation end of the back surface is greater than zero, so that the flow guide vertical surface has a length which extends the flowing water with the backward thrust surface behind a vortex formed on the back surface, thereby weakening the vortex resistance and improving the power take-off conversion rate. The force taking plate 1 comprises a main push plate 11 and two side plates 12, the two side plates 12 are respectively installed on two sides of the main push plate 11, the heights of the two side plates 12 on two sides of the main push plate 11 are higher than the plate surface of the main push plate 11, water flow impacts the plate surface of the upstream surface of the main push plate 11, a counteractive boosting force is formed between the main push plate 11 on the upstream surface side and the side plates 12, and the vortex is delayed by the side plates 12 on two sides on the back surface of the main push plate 11. The side plate 12 is installed perpendicular to the main push plate 11. The force taking plate 1 is vertically installed on the rotating shaft 2. The side plates 12 are vertically arranged on one side end face of the main push plate 11, and the cross sections of the two side plates 12 and the main push plate 11 form an H shape.
In tidal currents, the boosting elevation and the diversion elevation are equal in height. In one-way flowing water, the height of the boosting vertical face and the height of the flow guiding vertical face can be different, and the structures of the boosting vertical face and the flow guiding vertical face can also be different, while in tidal flowing water, the height design of the boosting vertical face and the flow guiding vertical face must be the same due to the two-way effect, even if the structures of the boosting vertical face and the flow guiding vertical face are different. According to the design of the force taking plate 1, water flow impacts the upstream surface of the main push plate 11, the concave shape formed by the main push plate 11 and the side plate 12 on the upstream surface enables the water flow to impact the bottom of the concave shape firstly and then turn back, and a larger thrust is formed in the concave surface, so that the structure is beneficial to the water flow to be brought into the force taking plate to enhance the force taking effect. It should be noted that, in an open water area, when water flow encounters a blockage, the water flow can actively bypass the blockage to flow away, so that for a planar force taking plate, after flowing water encounters the force taking plate, subsequent water flow can be shunted to two sides in advance by a certain distance, and when the flowing water passes through the force taking plate, a vortex is generated on the rear plate surface tightly attached to the force taking plate, and the force taking plate is reversely pushed, so that the force taking is consumed and counteracted; the side plates positioned on the two sides of the backing surface play a role of a guide plate, water shunted from the two sides of the force taking plate is directly guided away, a vortex cannot be directly formed on the surface of the backing surface, but the vortex extends backwards, and the counter thrust cannot be directly applied to the force taking plate. When water flow strikes the power taking plate in a low flow speed or surge mode, the existing water wheel power generation device cannot normally work, and the embodiment can enable the whole device to stably and continuously take power for power generation.
Example 2
As a further design of embodiment 1, as shown in fig. 2, a water discharging structure 13 is provided on the main push plate 11 of the thrust plate 1, and the water discharging structure 13 penetrates through the thrust plate 1, so that the water flow of the main push surface 11 directly flows out from the water discharging structure 13 to the rear of the back water surface.
The water discharging structure 13 comprises a plurality of water discharging through grooves 14, the water discharging through grooves 14 are square through grooves or circular through grooves, and the water discharging through grooves are square through grooves in fig. 2.
The water discharging structure 13 further comprises a discharging assisting structure 15 arranged between two adjacent water discharging through grooves, the discharging assisting structure 15 is provided with bulges which gradually rise from the two water discharging through grooves to the middle part, and the bulges are triangular bodies or are formed by two convex circular arcs which gradually rise from the positions of the respective water discharging through grooves to the middle part.
When the power takeoff plate is fed with water, the water discharging through groove 14 enables a water flow part to be directly placed at the rear part from the water discharging through groove, so that the problem that the water flow bypasses when meeting with a blockage is solved, and the problem of speed reduction of the water flow is weakened; in addition, the water discharging through groove also has the function of discharging water when leaving the water surface, thereby reducing resistance. Main push pedal and curb plate structure can form the groove of holding in the palm water, and the axial direction holds in the palm water when leaving to increased the resistance, the logical groove of draining has solved this problem. The function of the discharge-assisting structure 15 is that when the power taking plate 1 is fed with water, the flowing water can impact the surface of the discharge-assisting structure to form boosting, and when the power taking plate leaves the water, the water can be quickly guided to the water discharge through groove to be discharged. The water discharge structure 13 can solve the problems of water flow bypassing and excessive reduction in flow velocity, and can substantially improve the conversion efficiency although it seems that the water intake area is reduced.
In this example, the conversion, measured at a flow rate of 1 meter of seawater, was 46%.
Example 3
As shown in FIG. 3, two force taking plates 1 are arranged on the same circumference of the rotating shaft 2, and the included angle between the two force taking plates 1 is 180 degrees. Because on same rivers direction, when two or more boards of getting power appear simultaneously, the water between two adjacent boards can form the water and isolate and not flow, consumes the external thrust of getting the power board, influences the whole effect of getting power. The setting is 180 degrees, when one force taking plate enters water, the other force taking plate is exposed out of the water, and mutual influence is avoided. Two or three force taking plates 1 are uniformly arranged on the same circumference of the rotating shaft to form a force taking plate group, when the force taking plate group is two force taking plates, the included angle between the two plates is 180 degrees, and when the force taking plate group is three force taking plates, the included angle between the two adjacent plates is 120 degrees. Because on same rivers direction, when two or more boards of getting power appear simultaneously, the water between two adjacent boards can form the water and isolate and not flow, consumes the external thrust of getting the power board, influences the whole effect of getting power. Set up 180 degrees, a board of getting power is intake, and another exposes to the water, does not influence each other, or when the water wheels of getting power is great, because the radius increases, when a board of getting power was intake at this moment, another was close out water, and the distance between the two is far away, therefore influences very little, so set up 120 degrees also can.
The force taking plate is characterized in that a plurality of force taking plate groups are arranged on different circumferential positions on the rotating shaft, the force taking plates on two adjacent force taking plate groups are arranged in a staggered mode, the force taking plates are vertically arranged on the rotating shaft, and the rotating shaft is arranged in the installation frame in a direction parallel to the water surface, so that the water facing surface of each force taking plate is perpendicular to the water flow. The force taking plates which are arranged on the whole rotating shaft in a staggered mode can enter water at different time to take force, the force taking plates can always take force in the water, and the problem of stable continuity of stress of the whole device is solved.
The rotating shaft 2 is arranged in the mounting frame 3 in a direction parallel to the water surface, and a plurality of force taking plates 1 are arranged on the rotating shaft 2, and the force taking plates 1 are distributed along the circumference of the rotating shaft.
The installation frame 3 includes outer fixed frame 31 and interior regulation frame 32, outer fixed frame 31 is used for fixing whole support body on the installation face, interior regulation frame 32 is installed in outer fixed frame 31, including installing the adjustment tank 33 in outer fixed frame 31 both sides, adjust the slider of support frame 34 one end connection installation in adjustment tank 33, the inner frame 35 is connected to the other end, set up flotation pontoon 16 on adjusting support frame 34, set up increaser and generator 37 on adjusting support frame 34, axis of rotation 2 is fixed through the bearing frame on the inner frame of both sides, and one end output connection increaser, the increaser output connection generator. By means of the adjustable frame, the power take-off plate is always on an ideal power take-off water surface in the tide.
The outer fixing frame 31 or the inner frame 35 is provided with a windshield. The problem of the typhoon causes the power take-off board to rotate, destroys the generator is prevented.
In the force taking plates 1 arranged on different circumferences of the rotating shaft 2, a certain angle is formed between every two adjacent force taking plates. The force taking plates which are arranged on the whole rotating shaft in a staggered mode can always take force in water by the force taking plates, and the problem of stable continuity of stress of the whole device is solved.
According to the utility model, through the design of the force taking plate 1, the water flow firstly impacts the bottom of the concave shape by the concave shape formed by the main push plate 11 and the side plate 12 on the upstream surface and then turns back, and a larger thrust is formed by overlapping in the concave surface, so that the structure is beneficial for the water flow to be brought into the force taking plate to push the force taking plate; the side plates positioned on the two sides of the backing surface play a role of a guide plate, water shunted from the two sides of the force taking plate is directly guided away, a vortex cannot be directly formed on the surface of the backing surface, but the vortex extends backwards, and the counter thrust cannot be directly applied to the force taking plate. When water flow impacts the power taking plate in a low-flow-speed or surging mode, a stable and continuous power taking effect can be obtained, and finally stable power generation of low-flow-speed tidal current can be realized.
The mounting manner in this embodiment is one of them, and in practical applications, for example, the main shaft of the power take-off structure of embodiment 1 is mounted on a floating platform.
In the floating platform, the company develops a floating platform which takes a hollow steel pipe as a supporting framework, and light foaming materials are directly filled in the supporting steel pipe. The steel wire mesh is wrapped outside the steel pipe, cement paste is sprayed on the steel wire mesh, and an anti-corrosion layer is formed, so that the whole frame body can be used in seawater for a long time.
Example 4
The utility model may also be used in single-flow waters, such as rivers. The thrust face of the power take-off plate is a thrust face, the back face of the power take-off plate is provided with a flow guide vertical face, the flow guide vertical face and the back face are non-parallel faces, the height between one end of the flow guide vertical face and the installation end of the back face is larger than zero, the flow guide vertical face is provided with a length which extends a vortex formed by flowing water with the thrust face backward on the back face, so that the vortex resistance is weakened, the power take-off conversion rate is improved, in unidirectional flowing water, the thrust face of the power take-off plate is provided with a boosting vertical face, the boosting vertical face and the thrust face are non-parallel faces, the height between one end of the boosting vertical face and the installation end of the thrust face is larger than zero, and when water flow impacts the main thrust face, the boosting force is formed between the main thrust face and the boosting vertical face.
In one-way flowing water, it is feasible to provide no boosting elevation, and it is preferable to provide a boosting elevation, while in two-way flowing water such as tide, it is not feasible to provide a boosting elevation, because the change of the upstream surface can cause the thrust surface and the back surface to be interchanged, researchers first find that the prior art directly adopts the flat plate for force taking, seems to maximize the force taking area, and actually, if the force-taking area is too large, the water will bypass the obstacle (force-taking plate) before reaching, and the flow velocity of the water impinging on the force-taking plate will decrease, meanwhile, the water flow can bypass the thrust surface of the thrust plate to form reverse thrust vortex on the back water surface to offset the thrust, therefore, after the power generation device does not work in low-speed running water or is hung with a generator load, research and development personnel firstly redesign the power take-off plate after finding the problem, increase the flow guide vertical surface and the boosting vertical surface and realize the improvement of the power take-off conversion rate.
Although particular embodiments of the utility model have been described and illustrated in detail, it should be understood that various equivalent changes and modifications could be made to the above-described embodiments in accordance with the spirit of the utility model, and the resulting functional effects would still fall within the scope of the utility model.
Claims (9)
1. A semi-submersible bidirectional power takeoff tidal current power generation device comprises a mounting frame and a rotating shaft arranged on the mounting frame, wherein the rotating shaft is parallel to a water surface, a power takeoff plate is arranged on the rotating shaft, and water flow pushes the power takeoff plate to rotate through the rotating shaft; the method is characterized in that: the power take-off plate comprises a main push plate and two side plates, the two side plates are respectively installed on two sides of the main push plate, the heights of the two side plates on two sides of the main push plate are higher than the plate surface of the main push plate, water flow impacts the plate surface of the upstream surface of the main push plate to form a thrust surface, the side plates on two sides of the thrust surface form a boosting vertical surface, and the side plates on two sides of the downstream surface form a flow guide vertical surface.
2. The semi-submersible bidirectional power take-off tidal power generation device of claim 1, wherein: the boosting vertical surface and the flow guiding vertical surface are equal in height.
3. The semi-submersible bidirectional power take-off tidal power generation device of claim 1, wherein: the side plates are vertically arranged on one side end face of the main push plate, and the two side plates and the cross section of the main push plate form an H shape.
4. The semi-submersible bidirectional power take-off tidal power generation device of claim 1, wherein: the main push plate surface of the power taking plate is provided with a water discharging structure, and the water discharging structure penetrates through the power taking plate, so that partial water flow of the main push surface directly flows out of the water discharging structure to the back water surface.
5. The semi-submersible bidirectional power take-off tidal power generation device of claim 4, wherein: the structure of draining includes that a plurality of drains logical groove, and it is logical groove or circular logical groove to drain logical groove for the square.
6. The semi-submersible bidirectional power take-off tidal power generation device of claim 5, wherein: the water discharging structure also comprises a discharge assisting structure arranged between two adjacent water discharging through grooves, the discharge assisting structure is provided with bulges which gradually rise from the two water discharging through grooves to the middle part, and the bulges are triangular bodies or are composed of two convex circular arcs which gradually rise from the respective water discharging through grooves to the middle part.
7. The semi-submersible bidirectional power take-off tidal power generation device of claim 1, wherein: two or three force taking plates are uniformly arranged on the same circumference of the rotating shaft to form a force taking plate group, when the force taking plate group is two force taking plates, the included angle between the two plates is 180 degrees, and when the force taking plate group is three force taking plates, the included angle between the two adjacent plates is 120 degrees.
8. The semi-submersible bidirectional power take-off tidal power generation device of claim 7, wherein: the force taking plate is characterized in that a plurality of force taking plate groups are arranged on different circumferential positions on the rotating shaft, the force taking plates on two adjacent force taking plate groups are arranged in a staggered mode, the force taking plates are vertically arranged on the rotating shaft, and the rotating shaft is arranged in the installation frame in a direction parallel to the water surface, so that the water facing surface of each force taking plate is perpendicular to the water flow.
9. The semi-submersible bidirectional power take-off tidal power generation device of claim 8, wherein: the mounting frame uses the hollow steel pipe as a support framework, light foaming materials are directly filled in the support steel pipe, a steel wire mesh is wrapped outside the steel pipe, and water-spraying slurry is added to form an anti-erosion layer.
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| CN202123121009.2U CN216306121U (en) | 2021-12-14 | 2021-12-14 | Semi-submersible bidirectional power takeoff tidal power generation device |
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| CN202123121009.2U CN216306121U (en) | 2021-12-14 | 2021-12-14 | Semi-submersible bidirectional power takeoff tidal power generation device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215679A (en) * | 2021-12-14 | 2022-03-22 | 上海炅海新能源科技有限公司 | Semi-submersible type tidal current power generation device |
| CN114215679B (en) * | 2021-12-14 | 2024-05-03 | 上海炅海新能源科技有限公司 | Semi-submersible type tide power generation device |
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2021
- 2021-12-14 CN CN202123121009.2U patent/CN216306121U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215679A (en) * | 2021-12-14 | 2022-03-22 | 上海炅海新能源科技有限公司 | Semi-submersible type tidal current power generation device |
| CN114215679B (en) * | 2021-12-14 | 2024-05-03 | 上海炅海新能源科技有限公司 | Semi-submersible type tide power generation device |
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