Manufacturing method of marine comprehensive energy system and equipment

Abstract

The invention discloses a manufacturing method of an offshore comprehensive energy system and equipment, and particularly relates to the technical field of ocean energy development, which comprises the following steps: constructing a medium-low water head pumped storage hydropower station connected with a power grid in the ocean; a tidal energy reservoir is built in the ocean, and a tidal energy connecting dam is built between the tidal energy reservoir and the pumped storage hydropower station; a solar water pumping device, a wind power water pumping device and a wave energy water pumping device are respectively arranged at preset positions of the tidal energy reservoir, the pumped storage reservoir dam of the pumped storage hydropower station and the tidal current energy connecting dam; multi-energy complementation and unified energy storage are achieved, tidal energy, tidal current energy, solar energy, wave energy and wind energy are integrated into the pumped storage reservoir through respective water pumping devices, intermittent and fluctuating ocean energy is uniformly converted into stable gravitational potential energy to be stored, and then concentrated power generation is conducted through the medium-low water head pumped storage power station. The problem of unstable power supply is solved, and the energy storage cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of marine energy development, and more specifically, to an offshore integrated energy system and a manufacturing method of equipment. Background Art

[0002] In the energy field, marine energy, as a huge reserve of clean energy, has been increasingly concerned. It is estimated that the theoretical reserve of global marine energy is as high as several trillion kilowatts, with great potential. However, there are many bottlenecks in the current marine energy utilization technology.

[0003] The existing technology mainly converts mechanical energy into electrical energy, and this process relies on the collaborative work of many subsystems, resulting in a complex device structure, which not only increases the manufacturing difficulty but also keeps the cost high. At the same time, the maintenance of the equipment is also difficult due to the complex structure.

[0004] Marine energy has intermittency and volatility, which poses challenges to stable power supply. To solve this problem, the existing technology has to rely on energy storage technology or other auxiliary technologies, further increasing the cost and technical complexity.

[0005] In addition, the energy density of marine energy is relatively low. To achieve efficient utilization, large or even extra-large devices are often required. However, the current device manufacturing mainly relies on machine tool processing and mostly uses steel. On the one hand, large-scale manufacturing faces technical difficulties; on the other hand, steel materials are vulnerable to corrosion in the marine environment, increasing the maintenance cost and safety hazards of the equipment.

[0006] In summary, the existing marine energy utilization technology has obvious shortcomings in the energy acquisition method, equipment manufacturing, and material selection, and urgently needs innovative breakthroughs to achieve the efficient and low-cost development and utilization of marine energy;

[0007] Therefore, an offshore integrated energy system and a manufacturing method of equipment are proposed for the above problems. Summary of the Invention

[0008] In order to overcome the above defects of the prior art, an embodiment of the present invention provides an offshore integrated energy system and a manufacturing method of equipment, including the following steps:

[0009] S1. Build a medium and low head pumped-storage hydropower station connected to the power grid in the ocean, where the pumped-storage reservoir contained in the pumped-storage hydropower station is the upper reservoir, and the ocean below the coast is the lower reservoir;

[0010] S2. Build a tidal energy reservoir in the ocean. A tidal energy pumping device is arranged on the tidal energy reservoir dam of the tidal energy reservoir. The water inlet of the tidal energy pumping device is at sea level, and the water outlet is connected to the pumped-storage reservoir of the pumped-storage hydropower station;

[0011] S3. Build a tidal current energy connection dike between the tidal energy reservoir and the pumped-storage hydropower station, and install a tidal current energy pumping device on this dike. The water inlet of the tidal current energy pumping device is at sea level, and the water outlet is connected to the pumped-storage reservoir of the pumped-storage hydropower station;

[0012] S4. Install a solar energy pumping device, a wind energy pumping device and a wave energy pumping device at preset positions on the tidal energy reservoir dike of the tidal energy reservoir, the pumped-storage reservoir dike of the pumped-storage hydropower station and the tidal current energy connection dike respectively. The water inlets of each device are at sea level, and the water outlets are all connected to the pumped-storage reservoir of the pumped-storage hydropower station.

[0013] Preferably, the pumped-storage hydropower station is a medium-low head pumped-storage hydropower station, built on an uninhabited island with hard bottom or in a sea area with hard bottom. The pumped-storage reservoir dike of the pumped-storage hydropower station is made of high-strength concrete material, and a pumped-storage hydropower station device is arranged on its offshore side.

[0014] Preferably, the tidal energy reservoir is built along the coast. The height of the tidal energy reservoir dike is 5 meters higher than the high tide level of the sea water. The tidal energy pumping device is installed on the offshore side of this dike.

[0015] Preferably, the tidal current energy connection dike, the tidal energy reservoir dike and the pumped-storage reservoir dike form a trumpet-shaped structure. The height of the tidal current energy connection dike and the tidal energy reservoir dike is 5 meters higher than the high tide level of the sea water.

[0016] Preferably, both the tidal energy pumping device and the tidal current energy pumping device are integrally composed of a reversible water turbine and a reversible water pump, matching the bidirectional flow characteristics of the tide and tidal current, and can convert the energy of bidirectional water flow. The water turbine and the water pump are directly connected through a mechanical transmission mechanism. The reversible water turbine and the reversible water pump are both made of corrosion-resistant alloy and high-strength concrete materials, and are manufactured by die casting process. Seawater inlets and outlets are arranged on both sides of the water turbine. The water turbine rotor shaft is connected to the water pump rotor shaft. Both sides of the reversible water pump are provided with water inlet and outlet channels, which are connected to a loop channel. A check valve is arranged at the connection between the loop channel and the water inlet and outlet channels. An inlet and an outlet are respectively arranged on the loop channel between the two water inlet and outlet channels. The inlet is at sea level, and the outlet is connected to the pumped-storage reservoir. Seawater at both ends can push the water turbine to rotate forward and backward through the seawater inlets and outlets, thereby driving the water turbine rotor shaft to drive the water pump rotor shaft to rotate forward and backward, and realizing the unidirectional water pumping of the reversible water pump.

[0017] Preferably, the wind-powered pumping device has its output shaft of the wind turbine mechanically connected to the input shaft of the reversible pump. The wind turbine has a vertical-axis or horizontal-axis structure, and the output shaft of the wind turbine is driven to rotate by the wind blades.

[0018] Preferably, the wave energy pumping device includes a buoyant wave energy capture mechanism and a reversible pump. The buoyant wave energy capture mechanism consists of a buoy, a buoy shaft, and a buoy bearing seat. The buoy shaft is connected to the shaft of the reversible pump through a hinge mechanism to achieve the conversion of wave energy into water energy.

[0019] Preferably, the solar energy pumping device is integrally composed of a photovoltaic power generation module, a motor, and a reversible pump. The photovoltaic power generation module uses flexible solar panels and is fixed on the surface of the tidal energy reservoir dam.

[0020] Preferably, the core components of all pumping devices are manufactured by die casting technology, and the materials are selected as a composite structure of high-strength concrete, carbon fiber, and corrosion-resistant alloy; the integrated control module of the system adopts a waterproof and sealed design, supporting remote monitoring and fault diagnosis.

[0021] Technical effects and advantages of the present invention:

[0022] The present invention realizes multi-energy complementarity and unified energy storage. It integrates tidal energy, tidal current energy, solar energy, wave energy, and wind energy into a pumped-storage reservoir through their respective pumping devices, and uniformly converts the intermittent and fluctuating ocean energy into stable gravitational potential energy for storage. Then, it generates electricity centrally through a medium-low head pumped-storage power station, solving the problem of unstable power supply and reducing the energy storage cost; adopting an integrated design of a reversible water turbine and a reversible pump, combined with corrosion-resistant alloy, carbon fiber, and high-strength concrete materials, and manufactured through die casting technology, it breaks through the bottlenecks of large-scale and extra-large-scale device manufacturing, high cost, and seawater corrosion problems, greatly improving the durability of the equipment, simplifying the structure, and reducing the maintenance cost in a complex marine environment; choosing an uninhabited island or shallow sea area with a hard bottom as the site for building a medium-low head pumped-storage power station, and using the coordinated design of a trumpet-shaped dam and a tidal energy reservoir to optimize the energy capture efficiency. At the same time, through the distributed layout of flexible photovoltaic panels, etc., it realizes the efficient utilization of space resources. Through the above innovations, while reducing the manufacturing cost, improving the energy conversion efficiency, and enhancing the system reliability of the present invention, it provides an expandable technical solution for the large-scale development of ocean energy. Brief Description of the Drawings

[0023] Figure 1 It is a top view structural schematic diagram of the present invention.

[0024] Figure 2 It is a working principle diagram of the tidal current energy pumping device of the present invention.

[0025] Figure 3This is a schematic diagram of the partial structure of the wave energy pumping device of the present invention.

[0026] Figure 4 This is a schematic diagram of the partial structure of the wind energy pumping device of the present invention.

[0027] The reference numerals are: 1, tidal energy reservoir; 2, tidal energy reservoir dam; 3, tidal energy pumping device; 4, tidal current energy connecting dam; 5, tidal current energy pumping device; 6, pumped storage reservoir; 7, pumped storage reservoir dam; 8, pumped storage power station device; 9, wind energy pumping device; 10, wave energy pumping device; 11, solar energy pumping device; 12, coast; 101, float; 102, float shaft; 103, float bearing seat; 104, reversable water pump shaft; 201, water turbine; 222, water pump; 202, sea water inlet and outlet; 203, water turbine rotor shaft; 204, water pump rotor shaft; 205, water inlet and outlet channel; 206, return channel; 207, water inlet; 208, check valve; 209, water outlet; 903, wind blade; 901, wind turbine output shaft; 902, input shaft. Detailed implementation manners

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1

[0030] As shown in the attached Figure 1 A manufacturing method of an offshore integrated energy system and equipment includes the following steps:

[0031] S1. Build a medium and low head pumped storage power station connected to the power grid in the ocean, where the pumped storage reservoir 6 contained in the pumped storage power station is the upper reservoir, and the ocean below the coast 12 is the lower reservoir;

[0032] S2. Build a tidal energy reservoir 1 in the ocean. A tidal energy pumping device 3 is arranged on the tidal energy reservoir dam 2 of the tidal energy reservoir 1. The water inlet of the tidal energy pumping device 3 is at the sea level, and the water outlet is connected to the pumped storage reservoir 6 of the pumped storage power station;

[0033] S3. Build a tidal current energy connecting dam 4 between the tidal energy reservoir 1 and the pumped storage power station, and install a tidal current energy pumping device 5 on this dam. The water inlet of the tidal current energy pumping device 5 is at the sea level, and the water outlet is connected to the pumped storage reservoir 6 of the pumped storage power station;

[0034] S4. At preset positions of the tidal energy reservoir dam 2 of the tidal energy reservoir 1, the pumped-storage reservoir dam 7 of the pumped-storage hydropower station, and the tidal current energy connection dam 4, solar pumping devices 11, wind pumping devices 9, and wave energy pumping devices 10 are respectively arranged. The water inlets of each device are located at the sea level, and the water outlets are all connected to the pumped-storage reservoir 6 of the pumped-storage hydropower station.

[0035] Among them: A tidal energy reservoir 1 is built in the sea to collect and utilize tidal energy. A tidal energy pumping device 3 is installed on the dam. Its water inlet 207 is located at the sea surface, and its water outlet 209 is connected to the pumped-storage reservoir 6. Its function is to convert tidal energy into the gravitational potential energy of water and store it in the pumped-storage reservoir 6. On the tidal current energy connection dam 4 between the tidal energy reservoir 1 and the pumped-storage reservoir 6, a tidal current energy pumping device 5 is installed. Its water inlet is also set at the sea surface, and its water outlet is connected to the pumped-storage reservoir. Its function is to convert tidal current energy into the gravitational potential energy of water and store it; at appropriate positions in the reservoir area and on the dam, solar pumping devices 11, wave energy pumping devices 10, and wind pumping devices 9 are respectively arranged. The water inlets of these pumping devices are all at the sea surface, and the water outlets are all connected to the pumped-storage reservoir 6. The solar pumping device 11 is responsible for converting solar energy into the gravitational potential energy of water and storing it; the wave energy pumping device 10 converts wave energy into the gravitational potential energy of water and stores it; the wind pumping device 9 converts wind energy into the gravitational potential energy of water and stores it; a pumped-storage reservoir 6 is built in the sea to store the water pumped in by each pumping device.

[0036] Embodiment 2

[0037] Based on Embodiment 1, the solution in Embodiment 1 is further refined and introduced in combination with the following specific working methods. For details, see the following description:

[0038] As Figure 1 shown, as a preferred implementation method; the pumped-storage hydropower station is a medium-low head pumped-storage hydropower station built on an uninhabited island with a hard bottom or in a sea area with a hard bottom. The pumped-storage reservoir dam 7 of the pumped-storage hydropower station is made of high-strength concrete material. A pumped-storage power station device 8 is arranged on its offshore side. Further, an uninhabited island or shallow sea (water depth ≤ 30 meters) with a hard bottom is selected and high-strength concrete material is used to ensure the structural stability and long-term durability of the power station. The hard foundation enhances the wave resistance ability. The high-strength concrete is corrosion-resistant and has strong compressive strength, reducing the maintenance cost and extending the equipment life. A pumped-storage power station device 8 connected to the power grid is arranged on this reservoir dam to convert the potential energy in the reservoir into electric energy and transmit it to the power grid.

[0039] As Figure 1As shown, as a preferred embodiment; the tidal energy reservoir 1 is built along the coast 12, the height of the tidal energy reservoir dam 2 is 5 meters higher than the high tide level of the sea water, and the tidal energy pumping device 3 is installed on the offshore side of the dam. Further, the tidal energy reservoir dam 2 is 5 meters higher than the high tide level, and a tidal energy pumping device 3 with an integrated reversible water turbine-pump is installed on the offshore side to adapt to the two-way water flow of the ebb and flow of the tide, and the two-way energy conversion improves the efficiency. The high dam prevents seawater backflow, and the integrated design simplifies the structure, efficiently capturing tidal energy and converting it into gravitational potential energy.

[0040] As Figure 1 shown, as a preferred embodiment; the tidal current energy connecting dam 4, the tidal energy reservoir dam 2, and the pumped storage reservoir dam 7 form a trumpet-shaped structure. The height of the tidal current energy connecting dam 4 and the tidal energy reservoir dam 2 is 5 meters higher than the high tide level of the sea water. Further, the trumpet-shaped dam guides the water flow to concentrate, and the concentrated water flow improves the energy density and optimizes the capture efficiency of tidal current energy.

[0041] As Figure 2As shown, as a preferred embodiment; both the tidal energy pumping device 3 and the tidal current energy pumping device 5 are integrally composed of a reversible water turbine 201 and a reversible water pump 222. Matching the bidirectional flow characteristics of tides and tidal currents, they can convert bidirectional water flow energy. The water turbine 201 and the water pump 222 are directly connected through a mechanical transmission mechanism. Both the reversible water turbine 201 and the reversible water pump 222 are made of corrosion-resistant alloy and high-strength concrete materials through a die casting process. Seawater inlets and outlets 202 are provided on both sides of the water turbine 201. The water turbine rotor shaft 203 is connected to the water pump rotor shaft 204. Water inlet and outlet channels 205 are provided on both sides of the reversible water pump 222, which communicate with a loop channel 206. A one-way valve 208 is provided at the connection between the loop channel 206 and the water inlet and outlet channels 205. An inlet 207 and an outlet 209 are respectively provided on the loop channel 206 between the two water inlet and outlet channels 205. The inlet 207 is at sea level, and the outlet 209 communicates with the pumped storage reservoir 6. Seawater at both ends can push the water turbine 201 to rotate forward and backward through the seawater inlets and outlets 202, thereby driving the water turbine rotor shaft 203 to drive the water pump rotor shaft 204 to rotate forward and backward, realizing the unidirectional pumping of the reversible water pump 222. Further, the bidirectional device adapts to the change of tidal direction, improves power generation. The water turbine 201 and the water pump 222 are directly connected through mechanical transmission, made of corrosion-resistant alloy and high-strength concrete materials through a casting process, breaking through the bottlenecks in the manufacture of large and extra-large devices, the high cost, and the problem of seawater corrosion. The corrosion-resistant materials reduce the risk of marine environment erosion, extend the service life, and ensure energy conversion efficiency and equipment durability. During high tide, seawater enters the tidal energy reservoir, and the seawater pushes the reversible water turbine to operate. The water turbine 201 drives the water pump 222 to pump the seawater to the pumped storage reservoir 6 for storage, realizing energy conversion and storage. During low tide, the device operates reversely, and the seawater flows back from the tidal energy reservoir 1, driving the water pump 222 to pump the seawater to the pumped storage reservoir 6 for storage.

[0042] As Figure 4 shown, as a preferred embodiment; the wind energy pumping device 9 has the output shaft 901 of the wind turbine mechanically connected to the input shaft 902 of the reversible water pump. The wind turbine has a vertical axis or horizontal axis structure. The output shaft 901 of the wind turbine is driven to rotate by the wind blades 903. Further, the wind blades 903 drive the output shaft 901 of the wind turbine to rotate, and the output shaft 901 of the wind turbine directly drives the reversible water pump for energy conversion. The mechanical direct connection reduces energy loss and adapts to the strong wind environment at sea.

[0043] As Figure 3As shown, as a preferred embodiment; the wave energy pumping device 10 includes a float-type wave energy capture mechanism and a reversible pump. The float-type wave energy capture mechanism consists of a float 101, a float shaft 102, and a float bearing seat 103. The float shaft 102 is connected to the reversible pump shaft 104 through a hinge mechanism to realize the conversion of wave energy to water energy. Further, the float 101 drives the pump through a hinge mechanism, and the pump 222 can rotate forward and backward to match the wave undulation direction. The float structure efficiently captures the wave kinetic energy, and the two-way pump adapts to the wave periodic motion, improving the energy utilization rate.

[0044] As Figure 1 As shown, as a preferred embodiment; the solar energy pumping device 11 is integrally composed of a photovoltaic power generation module, an electric motor, and a reversible pump. The photovoltaic power generation module uses flexible solar panels and is fixed on the surface of the tidal energy reservoir dam 2. Further, the flexible photovoltaic panels generate electricity to drive the electric motor, which drives the reversible pump 222 to pump water. The flexible photovoltaic panels are suitable for curved surface installation, and the distributed layout maximizes the use of the dam space, with no pollution and zero emissions, and realizes the use of solar energy to drive the pump for energy storage.

[0045] As Figure 1 As shown, as a preferred embodiment; the core components of all pumping devices are manufactured by the die casting process. The materials are selected as a composite structure of high-strength concrete, carbon fiber, and corrosion-resistant alloy; the integrated control module of the system adopts a waterproof and sealed design, supporting remote monitoring and fault diagnosis. Further, the high-strength concrete main structure is manufactured by the die casting process, and the core components are compounded with corrosion-resistant alloy; the integrated waterproof control module supports remote monitoring. The die casting process improves the manufacturing efficiency and consistency. The composite structure takes into account both strength and corrosion resistance. The intelligent monitoring reduces the operation and maintenance difficulty, ensuring the manufacturing precision of the equipment and the reliable operation of the system.

[0046] The working process of the present invention is as follows: first, a pumped-storage hydropower station is constructed on an uninhabited island or shallow sea area with a hard bottom, wherein the pumped-storage reservoir 6 serves as an upper reservoir and the ocean below the coast 12 serves as a lower reservoir; a tidal energy reservoir 1 is constructed along the coastline, wherein the tidal energy reservoir dam 2 is 5 meters higher than the high tide level, and a tidal energy pumping device 3 is installed on the offshore side of the dam, wherein the water inlet is located at the sea level and the outlet is connected to the pumped-storage reservoir 6; a trumpet-shaped tidal energy connecting dam 4 is constructed between the tidal energy reservoir 1 and the pumped-storage hydropower station, and a tidal energy pumping device 5 is installed on the dam, wherein the device has a built-in forward and reverse turbine 201 and a reversible water pump 222, which can adapt to bidirectional tidal currents and can perform bidirectional extraction. When the tide is high, seawater enters the tidal energy reservoir 1, and the seawater drives the forward and reverse turbine 201 to operate, and the turbine 201 is linked to the water pump 222 to pump the seawater. The water is pumped to the pumped storage reservoir 6 for storage to realize energy conversion and storage. When the tide recedes, the device runs in reverse, and the seawater flows back from the tidal energy reservoir 1, driving the water pump 222 to pump the seawater to the pumped storage reservoir 6 for storage. The pumped storage reservoir dam 7 is constructed with high-strength concrete, and a pumped storage power station device 8 is arranged on the offshore side. The wind pumping device 9 drives the reversible water pump input shaft 902 through the wind turbine output shaft 901, and the wind blades 903 capture wind energy. The wave energy pumping device 10 drives the reversible water pump shaft 104 through the float 101 following the wave movement. The solar energy pumping device 11 generates electricity through the flexible photovoltaic panel to drive the motor to pump water. All devices pump seawater into the pumped storage reservoir 6 to store gravitational potential energy, and finally the pumped storage power station device 8 releases water to generate electricity and is integrated into the power grid. The system realizes remote monitoring and maintenance through an integrated control module.

[0047] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0048] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0049] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A manufacturing method of an offshore integrated energy system and equipment, characterized in that Including the following steps: S1. Construct a medium and low head pumped storage power station connected to the power grid in the ocean, where the pumped storage reservoir (6) contained in the pumped storage power station is the upper reservoir, and the ocean below the coast (12) is the lower reservoir; S2. Build a tidal energy reservoir (1) in the ocean. A tidal energy pumping device (3) is provided on the tidal energy reservoir dam (2) of the tidal energy reservoir (1). The water inlet of the tidal energy pumping device (3) is at sea level, and the water outlet is connected to the pumped storage reservoir (6) of the pumped storage power station; S3. Build a tidal current energy connection dam (4) between the tidal energy reservoir (1) and the pumped storage power station, and install a tidal current energy pumping device (5) on this dam. The water inlet of the tidal current energy pumping device (5) is at sea level, and the water outlet is connected to the pumped storage reservoir (6) of the pumped storage power station; S4. Respectively set a solar energy pumping device (11), a wind energy pumping device (9) and a wave energy pumping device (10) at preset positions on the tidal energy reservoir dam (2) of the tidal energy reservoir (1), the pumped storage reservoir dam (7) of the pumped storage power station and the tidal current energy connection dam (4). The water inlets of each device are all at sea level, and the water outlets are all connected to the pumped storage reservoir (6) of the pumped storage power station.

2. The manufacturing method of an offshore integrated energy system and equipment according to claim 1, characterized in that: The pumped storage power station is a medium and low head pumped storage power station, built on an uninhabited island with a hard bottom or in a sea area with a hard bottom. The pumped storage reservoir dam (7) of the pumped storage power station is made of high-strength concrete material, and a pumped storage power station device (8) is provided on its offshore side.

3. A manufacturing method of an offshore integrated energy system and equipment according to claim 1, characterized in that: The tidal energy reservoir (1) is built along the coast (12). The height of the tidal energy reservoir dam (2) is 5 meters higher than the high tide level of the sea water. The tidal energy pumping device (3) is installed on the offshore side of this dam.

4. A manufacturing method of an offshore integrated energy system and equipment according to claim 1, characterized in that: The tidal current energy connection dam (4) and the tidal energy reservoir dam (2), the pumped storage reservoir dam (7) form a horn-shaped structure. The height of the tidal current energy connection dam (4) and the tidal energy reservoir dam (2) is 5 meters higher than the high tide level of the sea water.

5. A manufacturing method of an offshore integrated energy system and equipment according to claims 3 and 4, characterized in that: The tidal energy pumping device (3) and the tidal current energy pumping device (5) are both integrally composed of a reversible water turbine (201) and a reversible water pump (222). Matching the bidirectional flow characteristics of tides and tidal currents, they can convert bidirectional water flow energy. The water turbine (201) and the water pump (222) are directly connected through a mechanical transmission mechanism. The reversible water turbine (201) and the reversible water pump (222) are both made of corrosion-resistant alloy and high-strength concrete materials through a die-casting process. Seawater inlets and outlets (202) are provided on both sides of the water turbine (201). The water turbine rotor shaft (203) is connected to the water pump rotor shaft (204). Inlet and outlet channels (205) are provided on both sides of the reversible water pump (222), which are connected to a loop channel (206). A check valve (208) is provided at the connection between the loop channel (206) and the loop channel. An inlet (207) and an outlet (209) are respectively provided on the loop channel (206) between the two inlet and outlet channels (205). The inlet (207) is at sea level, and the outlet (209) is connected to the pumped storage reservoir (6). Seawater at both ends can push the water turbine (201) to rotate forward and backward through the seawater inlets and outlets (202), thereby driving the water turbine rotor shaft (203) to drive the water pump rotor shaft (204) to rotate forward and backward, realizing the unidirectional water pumping of the reversible water pump (222).

6. A manufacturing method of an offshore integrated energy system and equipment according to claim 1, characterized in that: The wind energy pumping device (9) has its wind turbine output shaft (901) mechanically connected to the input shaft (902) of a reversible water pump. The wind turbine has a vertical axis or horizontal axis structure, and the wind turbine output shaft (901) is driven to rotate by the wind blades (903).

7. A manufacturing method of an offshore integrated energy system and equipment according to claim 1, characterized in that: The wave energy pumping device (10) includes a buoyant wave energy capture mechanism and a reversible water pump. The buoyant wave energy capture mechanism is composed of a buoy (101), a buoy shaft (102), and a buoy bearing seat (103). The buoy shaft (102) is connected to the reversible water pump shaft (104) through a hinged mechanism to realize the conversion of wave energy to water energy.

8. A manufacturing method of an offshore integrated energy system and equipment according to claim 1, characterized in that: The solar energy pumping device (11) is integrally composed of a photovoltaic power generation module, a motor, and a reversible water pump. The photovoltaic power generation module uses flexible solar panels and is fixed on the surface of the tidal energy reservoir dam (2).

9. A manufacturing method of an offshore integrated energy system and equipment according to any one of claims 1 to 8, characterized in that: The core components of all pumping devices are manufactured through a die-casting process, and the materials are selected as a composite structure of high-strength concrete, carbon fiber, and corrosion-resistant alloy; the integrated control module of the system adopts a waterproof and sealed design and supports remote monitoring and fault diagnosis.

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