Wind energy and wave energy combined power generation device for green hydrogen production

Abstract

The invention relates to the technical field of power generation equipment, in particular to a wind energy and wave energy combined power generation device for green hydrogen production. Comprising an overwater platform, a generator set arranged on the overwater platform, a floater mechanism used for capturing wave energy, an underwater fixing frame, a wind turbine and a transmission mechanism used for coupling the output of the floater mechanism and the output of the wind turbine. The floater mechanism comprises a floating ball, a lower sliding rod arranged at the lower end of the floating ball, a fixing base arranged at the upper end of the floating ball and a rack set vertically arranged on the fixing base, and the rack set penetrates through the water platform and is in sliding connection with the water platform. The transmission mechanism comprises a first input part in gear transmission connection with the rack set, a second input part in gear transmission connection with the wind turbine and a coupling part for coupling rotation of the first input part and rotation of the second input part so as to output the rotation to the generator set for power generation. According to the scheme, wave power generation and wind power generation share the same offshore platform and the same generator set, and the construction cost of the platform is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of power generation equipment, and in particular to a wind and wave energy combined power generation device for green hydrogen production. Background Art

[0002] Green hydrogen refers to hydrogen produced by electrolyzing water with renewable energy (such as wind energy, solar energy, hydropower, etc.). Its production process has zero carbon emissions and is one of the cleanest forms of energy in the hydrogen energy field. Marine wind energy has the advantages of cleanliness, safety, sustainability, and low cost, mature technology, and high reliability. It is becoming the focus of development in the new energy field. Wave energy, as a form of green, clean and renewable energy, is attracting the attention of more and more countries. At present, wave power generation platforms and wind power generation platforms are mostly carried out separately and independently, and it is necessary to cooperate with the construction of corresponding platforms and the installation of corresponding generator sets, and the operation and maintenance investment is high. Therefore, it is necessary to set up a wind and wave energy combined power generation device for green hydrogen production, so as to carry out wave energy and wind energy generation on the same platform for nearby electrolysis of seawater to produce hydrogen, and reduce the construction of offshore platforms, the investment in generator sets and the operation and maintenance costs. Summary of the invention

[0003] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is: to provide a wind and wave energy combined power generation device for green hydrogen production, so as to solve the problem that the existing wave energy power generation and wind energy power generation are carried out independently and have high investment, so as to achieve the purpose of carrying out wave energy and wind energy power generation on the same offshore platform and reducing the cost of offshore platform construction, generator set investment and operation and maintenance.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: a wind and wave energy combined power generation device for green hydrogen production, comprising an above-water platform, a generator set arranged on the above-water platform, a float mechanism for capturing wave energy, an underwater fixed frame for limiting the displacement of the float mechanism, a wind turbine for capturing wind energy, and a transmission mechanism for coupling the output of the float mechanism with the output of the wind turbine, wherein the float mechanism comprises a float, a lower slide rod vertically arranged at the lower end of the float, a fixed seat arranged at the upper end of the float, and a rack group vertically arranged on the fixed seat, the underwater fixed frame is located below the float and fixedly connected to the seabed, the lower slide rod is penetrated through the underwater fixed frame and slidably connected to the underwater fixed frame, the rack group is penetrated through the above-water platform and slidably connected to the above-water platform, and the transmission mechanism comprises an input member 1 connected to the gear transmission of the rack group, an input member 2 connected to the gear transmission of the wind turbine, and a coupling member for coupling the rotation of the input member 1 with the input member 2 to output to the generator set for power generation.

[0005] In this scheme, the buoy floats up and down under the action of waves, driving the rack group to move up and down. The up and down floating drives the rack group to drive the input member 1 of the transmission mechanism to rotate. Under the action of wind, the wind turbine's wind wheel rotates and drives the input member 2 of the transmission mechanism to rotate. The transmission mechanism couples the rotation of input member 1 with the rotation of input member 2 and drives the generator to rotate to generate electricity.

[0006] In the above scheme, wave power generation and wind power generation share the same offshore platform and the same generator set, effectively reducing the construction cost of the platform, reducing the installation, commissioning and management costs of the generator set, coupling wave energy and wind energy, increasing the overall power generation of the device, and reducing construction cost and operation and maintenance cost.

[0007] Furthermore, the rack assembly includes a left rack column and a right rack column arranged in parallel, and the above-water platform is provided with sliding holes that are slidably matched with the left rack column and the right rack column respectively.

[0008] Furthermore, the input member 1 includes a left gear with a horizontal axis and a right gear coaxially arranged with the left gear through the main shaft 1, the left gear and the right gear are both connected to the main shaft 1 for one-way rotation through a one-way bearing, the left rack column is located on one side of the main shaft 1 and meshes with the left gear, and the right rack column is located on the other side of the main shaft 1 and meshes with the right gear.

[0009] Furthermore, the wind turbine is a vertical axis wind turbine.

[0010] Furthermore, the input member 2 includes a bevel gear 1 coaxially arranged with the lower end of the vertical main shaft of the wind turbine, a bevel gear 2 meshing with the bevel gear 1, and a gear 3 coaxially fixedly connected with the bevel gear 2 through the main shaft 2.

[0011] Furthermore, the coupling member is a planetary gear set, which includes a sun gear, a planetary gear, a ring gear and a planet carrier. The main shaft 1 is coaxially fixedly connected to the sun gear, the outer wall of the ring gear is provided with gear teeth, the gear 3 is meshed with the gear teeth on the outer wall of the ring gear, the planet carrier is coaxially arranged with the sun gear, the planet carrier is rotatably connected to the rotating shaft of the planetary gear, and the planet carrier is coaxially fixedly connected to the input shaft of the generator set.

[0012] Furthermore, the underwater fixing frame is provided with a sliding hole which is slidably matched with the lower sliding rod.

[0013] Furthermore, a support frame for supporting the vertical main shaft of the vertical axis wind turbine is arranged on the above-water platform, and the vertical main shaft of the wind turbine is rotatably connected to the support frame via a thrust bearing.

[0014] Furthermore, the above-water platform includes a plurality of support columns and a fixing plate arranged at the upper ends of the plurality of support columns, the lower ends of the support columns are fixedly connected to the seabed, and the fixing plate is fixedly connected to the upper ends of the support columns.

[0015] Furthermore, the generator set includes a gearbox and a generator, and the input shaft of the gearbox is coaxially fixedly connected to the planet carrier.

[0016] In this solution, under the limitation of the lower slide rod and the left and right rack columns, the float can only move up and down but not sideways. Under the action of waves, the float moves up and down, driving the left and right rack columns to move up and down. When the float moves upward, the left rack column slides upward to drive the left gear to rotate, and then drives the sun gear to rotate in direction one through main shaft one. At this time, the right rack column slides upward to drive the right gear to rotate idly; when the float moves downward, the left rack column slides downward to drive the left gear to rotate idly, and the right rack column slides downward to drive the right gear to rotate, and then drives the sun gear to rotate in direction one through main shaft one. Therefore, no matter whether the float moves up or down, the cooperation of the left rack column, the right rack column and the left and right gears can drive the sun gear to rotate in one direction. The rotation of the sun gear drives the planetary carrier to rotate through the planetary gear, and then drives the generator to rotate to generate electricity. When wind acts on the blades, the blades drive the vertical main shaft and bevel gear one to rotate in one direction. Bevel gear one drives gear three to rotate in one direction through bevel gear two and main shaft two, and then drives the ring gear to rotate in the same direction as the sun gear. Driven by the ring gear and sun gear with the same direction, the planet carrier rotates faster, increasing the speed of the generator and increasing the power generation.

[0017] In this scheme, wave energy driving the sun gear to rotate alone or wind energy driving the ring gear to rotate alone can drive the planet carrier to rotate to generate electricity. When wave energy driving the sun gear to rotate and wind energy driving the ring gear to rotate act on the planet carrier together, the rotation speed of the planet carrier is higher than the rotation speed when the sun gear drives the planet carrier to rotate alone and the ring gear drives the planet carrier to rotate alone, effectively coupling wave energy and wind energy to increase the power generation of the entire generator set.

[0018] Compared with the existing technology of independent operation of wave power generation and wind power generation, in this solution, wave power generation and wind power generation share the same offshore platform and the same generator set, effectively reducing the construction cost of the platform, reducing the installation, commissioning and management costs of the generator set, and facilitating daily inspections and maintenance by staff, coupling wave energy and wind energy, improving the overall power generation of the device, and reducing construction costs and operation and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 This is a schematic diagram of the main view structure of a wind and wave energy combined power generation device for green hydrogen production according to the present invention.

[0021] Figure 2 It is a schematic diagram of the structure of the transmission mechanism from a top view.

[0022] Figure 3 It is a structural schematic diagram of the transmission mechanism when viewed from the left.

[0023] Figure 4 It is a schematic diagram of the structure of the planetary gear set as seen from the rear.

[0024] The meanings of the symbols in the accompanying drawings are:

[0025] Support column-101; fixing plate-102;

[0026] Gearbox-201; Generator-202;

[0027] Floating ball 301; lower slide bar 302; fixing seat 303; rack assembly 304; left rack column 3041; right rack column 3042;

[0028] Underwater mount-40;

[0029] Blade-501; Vertical spindle-502;

[0030] Left gear-6011; right gear-6012; main shaft-6013; support-6014;

[0031] Bevel gear one - 6021; Bevel gear two - 6022; Main shaft two - 6023; Gear three - 6024; Support two - 6025;

[0032] Sun gear-6031; Planetary gear-6032; Ring gear-6033; Planetary carrier-6034; Support three-6035;

[0033] Support frame 70;

[0034] Seabed 80. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0037] A wind and wave energy combined power generation device for green hydrogen production in this embodiment, such as Figure 1-Figure 4 As shown, it includes an above-water platform, a generator set arranged on the above-water platform, a buoy mechanism for capturing wave energy, an underwater fixing frame 40 for limiting the displacement of the buoy mechanism, a wind turbine for capturing wind energy, and a transmission mechanism for coupling the output of the buoy mechanism with the output of the wind turbine.

[0038] like Figure 1 As shown, the above-water platform includes a plurality of support columns 101 and a fixing plate 102 arranged at the upper ends of the plurality of support columns 101, the lower ends of the support columns 101 are inserted into the seabed 80 and fixedly connected to the seabed 80, and the fixing plate 102 is horizontally arranged at the upper ends of the support columns 101 and fixedly connected to the support columns 101.

[0039] The generator set is arranged on the fixed plate 102, and the generator set includes at least a gearbox 201 and a generator 202. The input shaft 2011 of the gearbox 201 is used to input external torque into the gearbox, and the output shaft of the gearbox 201 is connected to the input shaft of the generator 202. The electric energy output by the generator 202 is transmitted via a cable to a nearby electrolytic hydrogen production device for preparing hydrogen.

[0040] The wind turbine is a vertical axis wind turbine, which is a commonly used wind power equipment, including blades 501 and a vertical main shaft 502 arranged vertically. The blades 501 are fixedly connected to the upper end of the vertical main shaft 502. When wind force acts on the blades 501, the blades 501 drive the vertical main shaft 502 to rotate in one direction. A support frame 70 for supporting the vertical main shaft 502 of the vertical axis wind turbine is provided on the fixed plate 102. The vertical main shaft 502 of the wind turbine is rotatably connected to the support frame 70 through a thrust bearing, and the vertical main shaft 502 is rotatably connected to the support frame 70 through a one-way bearing.

[0041] like Figure 1As shown, the float mechanism includes a float 301, which is a hollow sphere made of stainless steel. The float 301 has a certain weight. When the waves surge, the float 301 is lifted up by the waves and moves upward. When the waves recede, the float 301 moves downward, and can force the relevant gears to rotate by its own weight. The lower end of the float 301 is coaxially and vertically provided with a lower slide rod 302, the upper end of the lower slide rod 302 is fixedly connected to the float 301, and the lower end of the lower slide rod 302 is a free end. The underwater fixing frame 40 is located on the float 301. 01, the underwater fixing frame 40 is composed of a plurality of support rods and a top plate at the upper end of the support rods, the support rods are inserted into the seabed 80 and fixedly connected to the seabed 80, the top plate on the underwater fixing frame 40 is provided with a sliding hole that slides with the sliding rod 302, the lower end of the sliding rod 302 passes downward through the sliding hole, the sliding rod 302 is combined with the underwater fixing frame 40 to prevent the lower end of the floating ball 301 from moving in the lateral direction, the upper end of the floating ball 301 is fixedly connected with a fixing seat 303, the fixing seat 303 is provided with a rack group 304, combined with Figure 2 , Figure 3 As shown, the rack group 304 includes a left rack column 3041 and a right rack column 3042 that are both vertically and parallelly arranged. The left rack column 3041 and the right rack column 3042 are both cylinders that are vertically chamfered and have gear teeth processed on the vertical surface formed by the chamfered edges. The fixed plate 102 is vertically provided with sliding holes that respectively cooperate with the left rack column 3041 and the right rack column 3042. Under the cooperation and limitation of the left rack column 3041, the right rack column 3042 and the lower slide rod 302, the buoy 301 can only move vertically up and down under the action of waves, and cannot move laterally. When the buoy 301 moves up and down, it drives the left rack column 3041 and the right rack column 3042 to move up and down.

[0042] The transmission mechanism includes an input member 1 connected to the rack assembly 304 through gear transmission, an input member 2 connected to the wind turbine gear transmission, and a coupling member for coupling the rotation of the input member 1 with the rotation of the input member 2 to output to the generator 202 for power generation.

[0043] like Figure 2 , Figure 3As shown, the input member 1 includes a horizontally arranged main shaft 16013, a left gear 6011 and a right gear 6012 coaxially arranged with the main shaft 16013, the left gear 6011 and the right gear 6012 are both connected to the main shaft 16013 for one-way rotation via a one-way bearing, a U-shaped support 16014 is fixedly connected to the fixed plate 102, the main shaft 16013 is rotationally connected with the support 16014, the left gear 6011 and the right gear 6012 rotate synchronously with the main shaft 16013 in the same direction, the left rack column 3041 is located on one side of the main shaft 16013 and meshes with the left gear 6011, and the right rack column 3042 is located on the other side of the main shaft 16013 and meshes with the right gear 6012. The input member 2 includes a bevel gear 1 6021 coaxially arranged with the lower end of the vertical main shaft 502 of the wind turbine, a bevel gear 2 6022 meshing with the bevel gear 1 6021, and a gear 3 6024 coaxially fixedly connected to the bevel gear 2 6022 through a main shaft 2 6023, the main shaft 2 6023 is horizontally arranged, a U-shaped support 2 6025 is arranged on the fixed plate 102, and the main shaft 2 6023 is rotatably connected to the support 2 6025.

[0044] Combination Figure 4 As shown, the coupling member is a planetary gear set, which includes a sun gear 6031, a planetary gear 6032, a ring gear 6033 and a planet carrier 6034. The sun gear 6031 is a gear shaft. The main shaft 1 6013 is coaxially fixedly connected with the sun gear 6031. The outer wall of the ring gear 6033 is provided with gear teeth. The gear 3 6024 meshes with the gear teeth on the outer wall of the ring gear 6033. The planetary gear 6032 is located between the ring gear 6033 and the sun gear 6031. The planetary gear 6032 meshes with the inner teeth of the ring gear 6033 and the sun gear 6031 at the same time. At least three planetary gears 6032 are evenly distributed between the two planetary gears 6031. The rotating shaft 60341 of the planetary carrier 6034 is coaxially arranged with the sun gear 6031. The planetary carrier 6034 is rotatably connected with the rotating shaft of the planetary gear 6032. The rotating shaft 60341 of the planetary carrier 6034 is coaxially fixedly connected with the input shaft 2011 of the gearbox 201. The input shaft 2011 of the gearbox 201 can be regarded as the input shaft of the generator set. A U-shaped support three 6035 is arranged on the fixing plate 102. The sun gear 6031 and the rotating shaft 60341 of the planetary carrier 6034 are rotatably connected with the support three 6035.

[0045] In this solution, under the action of the waves, the buoy 301 moves up and down, driving the left rack column 3041 and the right rack column 3042 to move up and down. When the buoy 301 moves upward, the left rack column 3041 slides upward to drive the left gear 6011 to rotate, and then drives the sun gear 6031 to rotate in direction 1 through the main shaft 1 6013. At this time, the right rack column 3042 slides upward to drive the right gear 6012 to rotate idly; when the buoy 301 moves downward, the left rack column 3041 slides downward to drive the left gear 6011 to rotate idly, and the right rack column 3042 slides upward to drive the left gear 6011 to rotate idly. The rack column 3042 slides downward to drive the right gear 6012 to rotate, and then drives the sun gear 6031 to rotate in direction one through the main shaft 6013. Therefore, no matter whether the float 301 moves upward or downward, the cooperation of the left rack column 3041, the right rack column 3042 and the left gear 6011, the right gear 6012 can drive the sun gear 6031 to rotate in one direction. The rotation of the sun gear 6031 drives the planetary carrier 6034 to rotate through the planetary gear 6032, and then drives the generator 202 to rotate to generate electricity. When wind acts on blade 501, blade 501 drives vertical main shaft 502 and bevel gear 1 6021 to rotate unidirectionally, bevel gear 1 6021 drives gear 3 6024 to rotate unidirectionally through bevel gear 2 6022 and main shaft 2 6023, and then drives ring gear 6033 to rotate in the same direction as the sun gear 6031. Driven by ring gear 6033 and sun gear 6031 with the same direction, planet carrier 6034 accelerates to increase the rotation speed of generator 202 and increase power generation. The electric energy generated by generator 202 is used to supply power to the hydrogen electrolysis device built near the water platform, so as to prepare hydrogen by electrolysis of seawater nearby.

[0046] In this solution, the sun gear 6031 and the ring gear 6033 can only rotate in one direction. Wave energy driving the sun gear 6031 to rotate alone or wind energy driving the ring gear 6033 to rotate alone can drive the planet carrier 6034 to rotate for power generation. When the wave energy driving the sun gear 6031 to rotate and the wind energy driving the ring gear 6033 to rotate act on the planet carrier 6034 together, the rotation speed of the planet carrier 6034 is higher than the rotation speed when the sun gear 6031 drives the planet carrier 6034 to rotate alone and the ring gear 6033 drives the planet carrier 6034 to rotate alone, effectively coupling the wave energy and wind energy to increase the power generation of the entire generator 202.

[0047] Compared with the existing technology of independent operation of wave power generation and wind power generation, in this solution, wave power generation and wind power generation share the same offshore platform and the same generator set, effectively reducing the construction cost of the platform, reducing the installation, commissioning and management costs of the generator set, and facilitating daily inspections and maintenance by staff, coupling wave energy and wind energy, improving the overall power generation of the device, and reducing construction costs and operation and maintenance costs.

[0048] The above are only embodiments of the present invention, and the common knowledge such as the known specific structures and characteristics in the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A wind and wave energy combined power generation device for green hydrogen production, comprising an above-water platform and a generator set arranged on the above-water platform, characterized in that: It also includes a float mechanism for capturing wave energy, an underwater fixed frame for limiting the displacement of the float mechanism, a wind turbine for capturing wind energy, and a transmission mechanism for coupling the output of the float mechanism with the output of the wind turbine, the float mechanism includes a float, a lower slide rod vertically arranged at the lower end of the float, a fixed seat arranged at the upper end of the float, and a rack group vertically arranged on the fixed seat, the underwater fixed frame is fixedly connected to the seabed, the lower slide rod is passed through the underwater fixed frame and is slidably connected to the underwater fixed frame, the rack group is passed through the above-water platform and is slidably connected to the above-water platform, and the transmission mechanism includes an input member 1 connected to the gear transmission of the rack group, an input member 2 connected to the gear transmission of the wind turbine, and a coupling member for coupling the rotation of the input member 1 with the rotation of the input member 2 to output to the generator set for power generation.

2. A wind and wave energy combined power generation device for green hydrogen production according to claim 1, characterized in that: The rack assembly comprises a left rack column and a right rack column which are arranged in parallel, and the above-water platform is provided with sliding holes which are respectively slidably matched with the left rack column and the right rack column.

3. A wind and wave energy combined power generation device for green hydrogen production according to claim 2, characterized in that: The input member 1 includes a left gear with a horizontal axis and a right gear coaxially arranged with the left gear through the main shaft 1. The left gear and the right gear are both connected to the main shaft 1 for unidirectional rotation. The left rack column is located on one side of the main shaft 1 and meshes with the left gear. The right rack column is located on the other side of the main shaft 1 and meshes with the right gear.

4. A wind and wave energy combined power generation device for green hydrogen production according to claim 3, characterized in that: The wind turbine is a vertical axis wind turbine.

5. A wind and wave energy combined power generation device for green hydrogen production according to claim 4, characterized in that: The second input member includes a bevel gear 1 coaxially arranged with the lower end of the vertical main shaft of the wind turbine, a bevel gear 2 meshing with the bevel gear 1, and a gear 3 coaxially fixedly connected with the bevel gear 2 through the main shaft 2.

6. A wind and wave energy combined power generation device for green hydrogen production according to claim 5, characterized in that: The coupling member is a planetary gear set, the main shaft 1 is coaxially fixedly connected to the sun gear of the planetary gear set, the outer wall of the ring gear of the planetary gear set is provided with gear teeth, the gear 3 is meshed with the gear teeth on the outer wall of the ring gear, and the planet carrier of the planetary gear set is coaxially fixedly connected to the input shaft of the generator set.

7. A wind and wave energy combined power generation device for green hydrogen production according to claim 1, characterized in that: The underwater fixing frame is provided with a sliding hole which is slidably matched with the lower sliding rod.

8. A wind and wave energy combined power generation device for green hydrogen production according to claim 4, characterized in that: The above-water platform is provided with a support frame for supporting the vertical main shaft of the vertical axis wind turbine, and the vertical main shaft of the wind turbine is rotatably connected to the support frame through a thrust bearing.

9. The wind and wave energy combined power generation device for green hydrogen production according to claim 1, characterized in that: The above-water platform comprises a plurality of support columns and fixing plates arranged at the upper ends of the plurality of support columns, the lower ends of the support columns are fixedly connected to the seabed, and the fixing plates are fixedly connected to the upper ends of the support columns.

10. A wind and wave energy combined power generation device for green hydrogen production according to claim 6, characterized in that: The generator set comprises a gearbox and a generator, and the input shaft of the gearbox is coaxially fixedly connected to the planet carrier of the planetary gear set.

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