Offshore multifunctional resource generation system

Abstract

The invention discloses an offshore multifunctional resource generation system which comprises a floating supporting body, a wave energy hydraulic power generation module and a fresh water collection module, the offshore multifunctional resource generation system comprises multiple sets of capturing units, the multiple sets of capturing units are evenly arranged on the outer side of the floating supporting body, and each capturing unit comprises a floater, a hydraulic cylinder, a hydraulic device and a power generation device; the input end of the hydraulic device is communicated with the hydraulic cylinder, and a hydraulic medium filled in the hydraulic cylinder is fresh water; the fresh water collection module comprises an evaporation unit and a fresh water tank. A wave energy hydraulic power generation module is arranged to convert wave energy into hydraulic energy and further convert the hydraulic energy into electric energy; a fresh water collecting module is arranged, and fresh water is produced by means of evaporation desalination and rainwater collection. The fresh water can serve as a working medium of the wave energy hydraulic power generation module, circulation among the hydraulic cylinder, the hydraulic device, the power generation device and the fresh water tank is achieved, and therefore the environmental risk of leakage of traditional hydraulic oil is reduced, and corrosion of seawater to hydraulic elements is avoided.

Description

Technical Field

[0001] This invention relates to the field of wave energy power generation technology, and in particular to a multifunctional marine resource generation system. Background Technology

[0002] With the increasing scarcity of global freshwater resources, the development of sustainable freshwater resources and clean energy has become a major issue. Coastal and island regions generally face the dual problems of energy and freshwater shortages. Traditional material transportation methods are costly and unsustainable. Therefore, utilizing marine renewable energy sources locally to achieve self-sufficiency in freshwater and electricity resources has become an important development direction.

[0003] Wave energy and solar energy are the most widely distributed clean energy sources near the coast. Among them, wave energy power generation technologies are diverse, and hydraulic transmission is considered an efficient and reliable solution because it can effectively smooth the intermittency and fluctuating power of waves. However, if hydraulic oil is used as the medium, leakage will cause serious pollution to the marine ecosystem; if seawater is used directly, its strong corrosiveness and tendency to breed marine organisms will seriously damage hydraulic components, resulting in poor system reliability, short lifespan, and extremely high maintenance costs.

[0004] Meanwhile, existing seawater desalination technologies, such as reverse osmosis, while technically mature, are energy-intensive, and their core membrane components have stringent requirements for water pretreatment, posing significant challenges to operation and maintenance in complex nearshore environments. Furthermore, existing wave energy or solar energy devices often have limited functionality, only capable of generating electricity or producing water, resulting in low overall efficiency in energy and resource utilization and failing to meet the diverse and comprehensive needs for electricity, water, and resources from nearshore, island communities, and offshore operating platforms. Summary of the Invention

[0005] The purpose of this invention is to propose a multifunctional marine resource generation system to solve one or more technical problems existing in the background art.

[0006] To achieve this objective, the present invention adopts the following technical solution: A multi-functional marine resource generation system, comprising: A floating support structure is used to provide a support space and enable the system to float on the nearshore sea surface; The wave energy hydraulic power generation module includes multiple sets of capture units, which are evenly arranged on the outside of the floating support. Each capture unit includes a float, a hydraulic cylinder, a hydraulic device, and a power generation device. The float is located on the outside of the floating support, and the hydraulic cylinder is located between the float and the floating support. The input end of the hydraulic device is connected to the hydraulic cylinder. The hydraulic device is used to convert the hydraulic energy output by the hydraulic cylinder into stable hydraulic energy and then transmit it to the power generation device, which converts the hydraulic energy into electrical energy. The hydraulic medium filled in the hydraulic cylinder is fresh water. The freshwater collection module includes an evaporation unit and a freshwater tank. The freshwater tank is located at the bottom of the floating support. The evaporation unit is used to collect water vapor formed by the evaporation of seawater and condense it into freshwater. The freshwater tank is connected to the power generation device and is used to receive the freshwater returned by the power generation device. The freshwater tank is also connected to the hydraulic device and is used to replenish the hydraulic circuit with hydraulic medium.

[0007] Preferably, the float is hinged to the floating support via a spindle, the hydraulic cylinder is located on the upper and lower sides of the spindle, the cylinder body of the hydraulic cylinder is hinged to the floating support, the piston rod of the hydraulic cylinder is hinged to the float, and a hydraulic pipeline support bridge is provided between the freshwater tank and the hydraulic cylinder.

[0008] Preferably, the evaporation unit includes an evaporation box and a freshwater collection shed. The evaporation box is located on one side of the floating support, and the freshwater collection shed is located above the evaporation box. The freshwater collection shed is provided with a collection hole, and the evaporation box is provided with a solar collector plate.

[0009] Preferably, the freshwater collection module further includes a freshwater collection pipe and a freshwater collection switch. The freshwater collection shed is provided with a collection hole. The top end of the freshwater collection pipe is located below the collection hole, and the bottom end of the freshwater collection pipe extends into the freshwater tank. The freshwater collection switch is located at the top end of the freshwater collection pipe.

[0010] Preferably, the evaporation unit further includes a seawater coarse filter tank, and an inlet is provided on the outside of the evaporation box, with the seawater coarse filter tank located at the inlet of the evaporation box.

[0011] Preferably, the evaporation unit further includes a brine pump, the input end of which is connected to the evaporation chamber.

[0012] Preferably, it also includes a solar panel, which is disposed on top of the floating support.

[0013] Preferably, it also includes a main control room, which is electrically connected to the capture unit, the freshwater collection module and the solar power panel respectively.

[0014] Preferably, it also includes a self-locking module, which is electrically connected to the main control room and connected to the medium interface of the hydraulic cylinder.

[0015] The beneficial effects of this invention are as follows: A wave energy hydraulic power generation module is installed to convert wave energy into hydraulic energy and further into electrical energy; a freshwater collection module is installed to produce freshwater through evaporation desalination and rainwater collection. This freshwater can serve as the working medium for the wave energy hydraulic power generation module, enabling circulation between the hydraulic cylinder, hydraulic device, power generation device, and freshwater tank, thereby reducing the environmental risk of traditional hydraulic oil leakage and avoiding corrosion of hydraulic components by seawater.

[0016] By coupling wave energy, solar energy, and electrical energy, the wave energy hydraulic power generation module converts volatile wave energy into stable hydraulic and electrical energy to power various functional modules. Simultaneously, it utilizes solar thermal energy to improve evaporation efficiency, forming a multi-energy complementary power supply system that enhances overall energy utilization efficiency and system output stability. The freshwater produced by the freshwater collection module is partially recycled into the hydraulic system and partially supplied as a freshwater product. The electrical energy generated by the wave energy hydraulic power generation module and solar power is partially used for the system's own operation and partially supplies power to ships or offshore testing bases. Furthermore, the freshwater collection module can also produce byproducts such as brine during the evaporation process. Attached Figure Description

[0017] The accompanying drawings further illustrate the present invention, but the content of the drawings does not constitute any limitation on the present invention.

[0018] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention; Figure 2 This is a cross-sectional isometric view of one embodiment of the present invention.

[0019] The components include: float 1, hydraulic cylinder 2, spindle 3, floating support 4, transmission channel 5, hydraulic device 6, freshwater collection pipe 7, collection hole 8, main control room 9, freshwater tank 10, hydraulic pipeline support bridge 11, water extraction hole 12, liquid inlet 13, reflux hole 14, solar power generation panel 15, brine pump 16, evaporator 17, solar collector 18, freshwater collection shed 19, seawater coarse filter tank 20, power generation device 21, liquid outlet 22, and freshwater collection switch 23. Detailed Implementation

[0020] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] This embodiment describes a multifunctional marine resource generation system, as shown in the attached diagram. Figure 1 and 2 ,include: Floating support 4 is used to provide a load-bearing space and enable the system to float on the nearshore sea surface; The wave energy hydraulic power generation module includes multiple sets of capture units, which are evenly arranged on the outside of the floating support 4. Each capture unit includes a float 1, a hydraulic cylinder 2, a hydraulic device 6, and a power generation device 21. The float 1 is located on the outside of the floating support 4, and the hydraulic cylinder 2 is located between the float 1 and the floating support 4. The input end of the hydraulic device 6 is connected to the hydraulic cylinder 2. The hydraulic device 6 is used to convert the hydraulic energy output by the hydraulic cylinder 2 into stable hydraulic energy and then transmit it to the power generation device 21. The power generation device 21 converts the hydraulic energy into electrical energy. The hydraulic medium filled in the hydraulic cylinder 2 is fresh water. The freshwater collection module includes an evaporation unit and a freshwater tank 10. The freshwater tank 10 is located at the bottom of the floating support 4. The evaporation unit is used to collect water vapor formed by the evaporation of seawater and condense it into freshwater. The freshwater tank 10 is connected to the power generation device 21 and is used to receive the freshwater returned by the power generation device 21. The freshwater tank 10 is connected to the hydraulic device 6 and is used to replenish the hydraulic medium to the hydraulic circuit.

[0022] A wave energy hydraulic power generation module is installed to convert wave energy into hydraulic energy and then into electrical energy; a freshwater collection module is installed to produce freshwater through evaporation desalination and rainwater collection. This freshwater can be used as the working medium of the wave energy hydraulic power generation module, realizing circulation between the hydraulic cylinder 2, hydraulic device 6, power generation device 21 and freshwater tank 10, thereby reducing the environmental risk of traditional hydraulic oil leakage and avoiding corrosion of hydraulic components by seawater.

[0023] In this embodiment, a floating support 4 is installed to allow the entire system to float on the nearshore sea surface. A wave energy hydraulic power generation module is installed to convert wave energy into hydraulic energy and then into electrical energy. A freshwater collection module is installed to produce freshwater through evaporation desalination and rainwater collection. This freshwater can be used as the working medium for the wave energy hydraulic power generation module, circulating between the hydraulic cylinder 2, hydraulic device 6, power generation device 21, and freshwater tank 10. This reduces the environmental risk of traditional hydraulic oil leakage and avoids corrosion of hydraulic components by seawater.

[0024] Preferably, float 1 is hinged to floating support 4 via spindle 3. Hydraulic cylinder 2 is located on the upper and lower sides of spindle 3. The cylinder body of hydraulic cylinder 2 is hinged to floating support 4, and the piston rod of hydraulic cylinder 2 is hinged to float 1. A hydraulic pipeline support bridge 11 is provided between freshwater tank 10 and hydraulic cylinder 2. By hinged float 1 to floating support 4 via spindle 3 and hydraulic cylinder 2 arranged on the upper and lower sides of spindle 3, with the cylinder body and piston rod of hydraulic cylinder 2 respectively hinged to floating support 4 and float 1, the float 1 transmits force when it oscillates with the waves, causing hydraulic cylinder 2 to fully extend and retract. This captures the mechanical energy of the waves, converting wave energy into hydraulic energy, which is then transmitted to hydraulic device 6 through transmission channel 5. The hydraulic energy is collected and converted into stable hydraulic energy by hydraulic device 6, and then transmitted to the inlet 13 of generator 21 via hydraulic pipeline support bridge 11 to generate electricity. Freshwater is then discharged from outlet 22 and returned to freshwater tank 10 through return hole 14. By hinged hydraulic cylinder 2 to float 1 and floating support 4, hydraulic cylinder 2 can adaptively adjust its angle as float 1 swings, ensuring that the wave force always acts along the axial direction of hydraulic cylinder 2. This avoids damage to hydraulic components such as wear and deformation caused by radial force or eccentric force, prevents damage to hydraulic components from wave impact, and improves operational stability.

[0025] Preferably, the evaporation unit includes an evaporation chamber 17 and a freshwater collection shed 19. The evaporation chamber 17 is located on one side of the floating support 4, and the freshwater collection shed 19 is located above the evaporation chamber 17. A solar collector 18 is installed inside the evaporation chamber 17. By placing the transparent freshwater collection shed 19 above the evaporation chamber 17 and installing the solar collector 18 inside the evaporation chamber 17, solar energy is used to heat and evaporate seawater. Sunlight shines through the freshwater collection shed 19 onto the solar collector 18, heating the seawater inside the evaporation chamber 17 and causing it to evaporate. The water vapor generated by evaporation condenses on the freshwater collection shed 19, and the resulting freshwater is introduced into the freshwater tank 10 for storage. Thus, solar evaporation replaces traditional fossil fuel heating, reducing the energy consumption of seawater desalination. The freshwater collection shed 19 effectively collects the water vapor generated by seawater evaporation and promotes its condensation. At the same time, during rainy days, rainwater can be collected at the top of the conical freshwater collection shed 19, achieving rainwater collection.

[0026] Preferably, the freshwater collection module also includes a freshwater collection pipe 7 and a freshwater collection switch 23. A collection hole 8 is provided on the freshwater collection shed 19. The top end of the freshwater collection pipe 7 is located below the collection hole 8, and the bottom end of the freshwater collection pipe 7 extends into the freshwater tank 10. The freshwater collection switch 23 is located at the top end of the freshwater collection pipe 7. The collection hole 8 facilitates the concentrated flow of condensed freshwater, ensuring that the condensed freshwater is collected in the freshwater collection pipe 7 and then flows into the freshwater tank 10 for storage, thus achieving freshwater collection. Freshwater in the freshwater tank 10 can be drawn out from the pump hole 12, flows through the hydraulic pipeline support bridge 11 to the hydraulic device 6, and then is supplied to the hydraulic cylinder 2. By setting the freshwater collection switch 23, the start and stop of freshwater collection can be controlled according to the storage capacity of the freshwater tank 10 to prevent overflow. Rainwater can also be collected by controlling the start and stop of the freshwater collection switch 23 during rainy weather.

[0027] Preferably, the evaporation unit further includes a seawater coarse filter tank 20. An inlet is provided on the outside of the evaporation tank 17, and the seawater coarse filter tank 20 is located at the inlet of the evaporation tank 17. By setting the seawater coarse filter tank 20 at the inlet of the evaporation tank 17, the seawater entering the evaporation tank 17 is pretreated to filter out large particles such as silt and shells, preventing impurities from depositing on the surface of the solar collector plate 18 after entering the evaporation tank 17 and affecting the heat collection efficiency. Simultaneously, it prevents impurities from wearing down or clogging subsequent pipelines, extending the service life of the evaporation unit.

[0028] Preferably, the evaporation unit also includes a brine pump 16, the input of which is connected to the evaporation tank 17. By setting up the brine pump 16, after the seawater in the evaporation tank 17 is evaporated and concentrated into high-concentration brine, a special transport ship can be called to collect it. The discharged concentrated brine can be used as a potential resource for further development and utilization, thereby further enhancing the comprehensive resource utilization value of the system.

[0029] Preferably, the system also includes a solar panel 15, which is mounted on top of the floating support 4. By installing the solar panel 15, complementary power generation from wave energy and solar energy can be achieved. When wave energy is insufficient or the system is at low power levels, solar power generation can ensure the stability of the system's power supply, enhance the system's continuous power supply capability, and meet the system's own operation and external power needs.

[0030] Preferably, the system also includes a main control room 9, which is electrically connected to the wave capture unit, the freshwater collection module, and the solar power panel 15. This enables centralized control and coordinated scheduling of the wave energy capture unit, the freshwater collection module, and the solar power panel 15. The main control room 9 can automatically adjust the operating parameters of each module based on wave energy intensity, solar irradiance intensity, and freshwater demand, ensuring the entire system is always in optimal operating condition and improving the system's intelligence and operational efficiency. Thus, by coupling wave energy, solar energy, and electrical energy, and utilizing the main control room 9 for intelligent control, a multi-energy complementary power supply system is formed. The freshwater produced by the freshwater collection module is partially recycled for the hydraulic system and partially supplied as a freshwater product; the electrical energy generated by the wave energy hydraulic power generation module and the solar power generation is partially used for the system's own operation and partially supplies power to ships or offshore test bases. Furthermore, the freshwater collection module can also produce byproducts such as brine during the evaporation process; the brine can be recovered by controlling the start and stop of the brine pump 16.

[0031] Preferably, a self-locking module is also included. The self-locking module is electrically connected to the main control room 9 and is connected to the medium interface of the hydraulic cylinder 2. By controlling the medium interface of the hydraulic cylinder 2 through the hydraulic system, it is transformed into a jack-like mode. When the float 1 is lifted by the waves, it is hydraulically locked and cannot descend. The waves continue to hit it, raising the float 1 to its highest point for protection. After the typhoon, the hydraulic lock is released, and the power generation is not activated. The float 1 gradually falls to the sea surface under the action of gravity.

[0032] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of the invention without inventive effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A multifunctional marine resource generation system, characterized in that, include: A floating support structure is used to provide a support space and enable the system to float on the nearshore sea surface; The wave energy hydraulic power generation module includes multiple sets of capture units, which are evenly arranged on the outside of the floating support. Each capture unit includes a float, a hydraulic cylinder, a hydraulic device, and a power generation device. The float is located on the outside of the floating support, and the hydraulic cylinder is located between the float and the floating support. The input end of the hydraulic device is connected to the hydraulic cylinder. The hydraulic device is used to convert the hydraulic energy output by the hydraulic cylinder into stable hydraulic energy and then transmit it to the power generation device, which converts the hydraulic energy into electrical energy. The hydraulic medium filled in the hydraulic cylinder is fresh water. The freshwater collection module includes an evaporation unit and a freshwater tank. The freshwater tank is located at the bottom of the floating support. The evaporation unit is used to collect water vapor formed by the evaporation of seawater and condense it into freshwater. The freshwater tank is connected to the power generation device and is used to receive the freshwater returned by the power generation device. The freshwater tank is also connected to the hydraulic device and is used to replenish the hydraulic circuit with hydraulic medium.

2. The marine multifunctional resource generation system according to claim 1, characterized in that, The float is hinged to the floating support body via a spindle. The hydraulic cylinder is located on the upper and lower sides of the spindle. The cylinder body of the hydraulic cylinder is hinged to the floating support body, and the piston rod of the hydraulic cylinder is hinged to the float. A hydraulic pipeline support bridge is provided between the freshwater tank and the hydraulic cylinder.

3. The marine multifunctional resource generation system according to claim 1, characterized in that, The evaporation unit includes an evaporation box and a freshwater collection shed. The evaporation box is located on one side of the floating support, and the freshwater collection shed is located above the evaporation box. The freshwater collection shed is provided with a collection hole, and the evaporation box is equipped with a solar collector plate.

4. The marine multifunctional resource generation system according to claim 3, characterized in that, The freshwater collection module also includes a freshwater collection pipe and a freshwater collection switch. The freshwater collection shed is provided with a collection hole. The top end of the freshwater collection pipe is located below the collection hole, and the bottom end of the freshwater collection pipe extends into the freshwater tank. The freshwater collection switch is located at the top end of the freshwater collection pipe.

5. A multifunctional marine resource generation system according to claim 3, characterized in that, The evaporation unit also includes a seawater coarse filter tank. An inlet is provided on the outside of the evaporation box, and the seawater coarse filter tank is located at the inlet of the evaporation box.

6. A multifunctional marine resource generation system according to claim 3, characterized in that, The evaporation unit also includes a brine pump, the input of which is connected to the evaporation chamber.

7. A multifunctional marine resource generation system according to claim 1, characterized in that, It also includes solar panels, which are located on top of the floating support.

8. A multifunctional marine resource generation system according to claim 7, characterized in that, It also includes a main control room, which is electrically connected to the capture unit, the freshwater collection module and the solar power panel.

9. A multifunctional marine resource generation system according to claim 8, characterized in that, It also includes a self-locking module, which is electrically connected to the main control room and connected to the medium interface of the hydraulic cylinder.

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