Fan coupling multi-resonance OWC wave energy power generation device

Abstract

The utility model discloses a fan coupling multi-resonance OWC wave energy power generation device, belongs to the field of energy utilization equipment, and solves the problem that in the prior art, an existing oscillation water column type wave energy device is low in conversion efficiency under different wave conditions. According to the technical scheme, all oscillating water columns are arranged into a plurality of rows of oscillating water column groups; the pipe length of the oscillating water column of the front-row oscillating water column group is smaller than that of the oscillating water column of the rear-row oscillating water column group; oscillating water columns of the oscillating water column group in the front row are connected with a high-tide-level air chamber cavity and are connected with a power generation device of the power container through the high-tide-level air chamber cavity; and the oscillating water columns of the oscillating water column group in the rear row are connected with a low-tide-level air chamber cavity and are connected with a power generation device of the power container through the low-tide-level air chamber cavity. According to the technical scheme, different oscillating water columns are started according to different wave heights and wave conditions, and local tide level changes can be effectively adapted.

Description

Technical Field

[0001] This invention relates to a wind turbine coupled with multiple resonance OWC wave energy generation device, belonging to the field of energy utilization equipment. Background Technology

[0002] The ocean contains abundant wind and wave energy. Wave energy generation devices can be classified into three types according to their power generation principle: oscillating water column type (OWC), oscillating body type, and overtopping type. Oscillating water column type wave energy devices have a simple structure, with all moving parts for energy conversion located above the water surface and not in contact with seawater, resulting in good corrosion resistance and easy maintenance.

[0003] In the process of researching, developing, and utilizing wave energy, it was discovered that the development of wave energy as a single energy source also has certain limitations. Therefore, combining it with offshore wind power generation has made it possible to couple wind turbines with wave energy power generation devices. Oscillating water column wave energy devices are gradually being coupled with foundation structures such as breakwaters and wind turbines, improving the utilization rate of waves.

[0004] Currently, oscillating water column wave energy devices come in both shore-based and offshore types, with shapes including rectangular, U-shaped, and cylindrical, and air chamber structures including single-chamber and multi-chamber designs. Existing oscillating water column wave energy devices cannot effectively adapt to changes in wave height and conditions under different wave conditions (low water level, high water level), and cannot ensure efficient energy conversion under varying wave conditions. Summary of the Invention

[0005] To address the problem of low conversion efficiency of existing oscillating water column wave energy devices under different wave conditions, this invention provides a wind turbine coupled with multiple resonance OWC wave energy generation device, which activates different oscillating water columns for different wave heights and conditions, effectively adapting to local tidal level changes.

[0006] The technical solution adopted in this invention is a wind turbine coupled multiple resonance OWC wave energy power generation device, including a shared facility platform and an oscillating water column, wherein the oscillating water column is installed at the lower part of the shared facility platform;

[0007] The wind turbine coupled multiple resonance OWC wave energy generation device of this application also includes an electric container with a power generation device;

[0008] The oscillating water column has several columns; the oscillating water column is a hollow tubular column with open ends;

[0009] All the oscillating water columns were arranged into several rows of oscillating water column groups;

[0010] In two adjacent sets of oscillating water column groups, the oscillating water column group on the wave-facing side is the front row; the pipe length of the oscillating water column in the front row is less than the pipe length of the oscillating water column in the rear row.

[0011] The front row of oscillating water column group is connected to the high tide air chamber and is connected to the power generation device of the electric container through the high tide air chamber.

[0012] The oscillating water column of the rear row of oscillating water column group is connected to the low tide air chamber and is connected to the power generation device of the power container.

[0013] The optimized wind turbine coupled with the multi-resonance OWC wave energy generation device shares the facility platform as the support for the offshore wind power equipment platform.

[0014] The optimized wind turbine coupled multiple resonance OWC wave energy generation device also includes a shared gas chamber; the shared gas chamber has an internal cavity.

[0015] The shared air chamber has partitions that divide the internal cavity of the shared air chamber into a high tide air chamber and a low tide air chamber.

[0016] The optimized wind turbine coupled multiple resonance OWC wave energy generation device also includes an electric container, which contains a turbine device.

[0017] The shared air chamber is connected to the power air intake of the turbine device through an airflow channel.

[0018] The optimized wind turbine coupled with the above-mentioned multi-resonance OWC wave energy power generation device has a three-way valve between the airflow channel and the shared air chamber; the power container has a high-power turbine device one and a low-power turbine device two; the airflow channel is a three-way pipe;

[0019] One of the three-way valves is connected to the power intake of the high-power turbine device 1 and the low-power turbine device 2 through an airflow channel. The other two three-way valves are connected to the high tide chamber and the low tide chamber, respectively.

[0020] In the optimized version of the above-mentioned wind turbine coupled multiple resonance OWC wave energy power generation device, the lower opening of the oscillating water column is the water inlet, and the water inlet of the oscillating water column is located on one side of the lower end of the oscillating water column.

[0021] The inlet of the oscillating water column has a constriction channel; the opening size of the constriction channel at the end closer to the oscillating water column is smaller than the opening size at the end farther away from the oscillating water column.

[0022] The upper end of the oscillating water column is an exhaust port, and the upper end of the oscillating water column is connected to the internal cavity of the shared air chamber.

[0023] In the optimized version of the above-mentioned wind turbine coupled with multiple resonance OWC wave energy generation device, the oscillating water columns of two adjacent sets of oscillating water columns are staggered.

[0024] The beneficial effects of this application are as follows:

[0025] The layout of this application allows for flexible switching between the two rows of oscillating water column generators based on real-time wave conditions. The opening and closing status of the three-way valves can be dynamically adjusted using a remote motor control system. At low water levels, the inlet of the front row of oscillating water column generators is exposed to air, preventing the generation of a pressure difference to transfer wave energy. In this case, only the end of the three-way valve connected to the rear row of oscillating water columns is opened. At high water levels, both ends of the three-way valve connected to the rear and front rows of oscillating water columns are opened simultaneously, enabling the device to effectively adapt to local tidal changes and ensuring efficient energy conversion under different wave conditions. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this application;

[0027] Figure 2 for Figure 1 Side view;

[0028] Figure 3 This is a schematic diagram of the connection structure between the airflow channel and the turbine device in this application;

[0029] Figure 4 This is a schematic diagram of the connection structure of the three-way valve of this application. Detailed Implementation

[0030] The technical features of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] This application discloses a wind turbine coupled multiple resonance OWC wave energy generation device, including a shared facility platform 1, an electric container 5 with a power generation device, a shared air chamber 3, and several oscillating water columns 2, with the oscillating water columns 2 installed at the lower part of the shared facility platform 1.

[0032] In this embodiment, the shared facility platform 1 is a support pillar for offshore wind power equipment platforms.

[0033] In this embodiment, there are 8 oscillating water columns 2, which are square hollow pipes with openings at both ends. The lower opening is the water inlet, located on one side of the lower end; the upper opening is the exhaust port, which is connected to the internal cavity of the shared air chamber 3.

[0034] All the oscillating water columns 2 are arranged into several rows of oscillating water column groups. In two adjacent groups of oscillating water column groups, the oscillating water column group on the wave-facing side is the front row. The tube length of the oscillating water column 2 in the front row of oscillating water column groups is less than the tube length of the oscillating water column 2 in the rear row of oscillating water column groups.

[0035] The front row of oscillating water column group has an oscillating water column 2 connected to a high tide air chamber, which in turn connects to the power generation device of the power container 5. The rear row of oscillating water column group has an oscillating water column 2 connected to a low tide air chamber, which in turn connects to the power generation device of the power container 5.

[0036] The shared air chamber 3 has an internal cavity, and the internal components of the shared air chamber 3 include a partition 4, which divides the internal cavity of the shared air chamber 3 into a high tide air chamber cavity and a low tide air chamber cavity.

[0037] The power container 5 contains a turbine and an electrical cabinet 503. The circuit output terminal of the turbine is electrically connected to the power input terminal of the electrical cabinet 503. The shared air chamber 3 is connected to the power intake terminal of the turbine through the airflow channel 6.

[0038] A three-way valve 601 connects the airflow channel 6 to the shared air chamber 3. The power container 5 contains a high-power turbine unit 501 and a low-power turbine unit 502. The airflow channel 6 is a three-way pipe. One of the three-way valve 601's three-way ends connects to the power intake ends of both the high-power turbine unit 501 and the low-power turbine unit 502 via the airflow channel 6. The other two three-way valve ends connect to the high tide chamber and the low tide chamber, respectively.

[0039] To adapt to the periodic changes in local tide levels, the lengths of the two sets of air chamber pipes can be adjusted according to the local tide level. The pipe lengths are designed based on local tidal and wave data, enabling the device to effectively adapt to local tidal changes. In tidal areas, the oscillating water column wave energy generation device of varying lengths can fully utilize the water flow and wave energy brought about by tidal changes, thereby obtaining more power generation time and higher energy utilization rate within a day.

[0040] Specifically, the system design of this application employs two three-way valves 601 and 602, respectively connecting the high-power turbine device 501 and the low-power turbine device 502 inside the shared air chamber 3 and the power container 5. This layout allows for flexible switching between the two rows of oscillating water column generators based on real-time wave conditions. With the aid of a remote motor control system, the opening and closing state of the three-way valve 601 can be dynamically adjusted. At low water levels, the inlet of the front row of oscillating water column generators is exposed to air, preventing the generation of a pressure difference to transfer wave energy. In this case, only the end of the three-way valve 601 connected to the rear row of oscillating water columns is opened. At high water levels, both ends of the three-way valve 601 connected to the rear and front rows of oscillating water columns are opened simultaneously, enabling the device to effectively adapt to local tidal changes and ensuring efficient energy conversion under different wave conditions.

[0041] The turbine configuration described in this application further improves the system's energy utilization efficiency. Specifically, the power selection of the turbine will be adjusted according to changes in wave conditions:

[0042] Under normal sea conditions and low water levels, three-way valve 601 opens the long end channel, while three-way valve 602 operates in low-power mode. When the water level rises, three-way valve 601 fully opens, while three-way valve 602 remains in low-power mode. Under extreme sea conditions, if the water level is low, three-way valve 601 maintains the long pipe channel, while three-way valve 602 switches to high-power mode; if the water level rises, three-way valve 601 fully opens, while three-way valve 602 selects between high-power and fully open states depending on wave intensity. Through this flexible valve control and pipeline switching strategy, the system can ensure the turbine achieves maximum power generation efficiency under specific wave conditions in varying sea conditions. This design not only effectively improves the adaptability of the equipment but also enhances the stability and reliability of energy conversion, enabling the system to operate efficiently under different wave conditions. This intelligent adjustment mechanism based on wave condition changes helps to maximize power generation efficiency while reducing the risk of system operation under extreme wave conditions.

[0043] This application also includes an electrical room containing a cable routing system that enables simultaneous grid connection of wind and wave power, thereby effectively reducing power system volatility. When the power output of wind or wave energy becomes unstable, the other energy source may be in a high-output state. This complementary mechanism can balance the overall power supply, reduce the risk of power outages or fluctuations, and thus significantly improve system stability.

[0044] Furthermore, this multi-energy grid connection not only optimizes the stability of power output but also improves energy efficiency by reducing reliance on a single energy source. Simultaneously, the integrated grid connection system eliminates the need for separate grid connection devices for wind and wave energy, thereby reducing the overall investment and maintenance costs. This design enhances system reliability while also improving economic efficiency, making it particularly suitable for resource-rich but meteorologically variable marine environments. By fully leveraging the complementarity of wind and wave energy, this system provides crucial support for the efficient utilization of renewable energy.

[0045] The lower opening of the oscillating water column 2 is the water inlet, located on one side of the lower end of the oscillating water column 2. A contraction channel 201 is located at the water inlet of the oscillating water column 2. The opening size of the contraction channel 201 near the oscillating water column 2 is smaller than the opening size of the contraction channel 201 away from the oscillating water column 2. The oscillating water columns 2 of two adjacent sets of oscillating water columns are staggered.

[0046] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should be protected by the present invention.

Claims

1. A wind turbine coupled multiple resonance OWC wave energy generation device, comprising a shared facility platform (1) and an oscillating water column (2), wherein the oscillating water column (2) is installed at the lower part of the shared facility platform (1); characterized in that: It also includes power containers with power generation devices (5); The oscillating water column (2) has several columns; the oscillating water column (2) is a hollow tubular column with open ends; All the oscillating water columns (2) are arranged into several rows of oscillating water column groups; In the two adjacent sets of oscillating water column groups, the oscillating water column group on the wave-facing side is the front row; the pipe length of the oscillating water column (2) in the front row oscillating water column group is less than the pipe length of the oscillating water column (2) in the rear row oscillating water column group. The oscillating water column (2) of the front row oscillating water column group is connected to the high tide air chamber and is connected to the power generation device of the power container (5) through the high tide air chamber. The oscillating water column (2) of the rear row of oscillating water column group is connected to the low tide air chamber and is connected to the power generation device of the power container (5).

2. The wind turbine coupled multiple resonance OWC wave energy generation device according to claim 1, characterized in that: The shared facility platform (1) is the support pillar of the offshore wind power equipment platform.

3. The wind turbine coupled multiple resonance OWC wave energy generation device according to claim 1, characterized in that: It also includes a shared air chamber (3); the shared air chamber (3) has an internal cavity; The shared air chamber (3) has a partition (4) inside, which divides the internal cavity of the shared air chamber (3) into a high tide air chamber cavity and a low tide air chamber cavity.

4. The wind turbine coupled multiple resonance OWC wave energy generation device according to claim 3, characterized in that: It also includes an electric container (5), which has a turbine inside; The shared air chamber (3) is connected to the power intake end of the turbine device through the airflow channel (6).

5. The wind turbine coupled multiple resonance OWC wave energy generation device according to claim 4, characterized in that: A three-way valve (601) is provided between the airflow channel (6) and the shared air chamber (3); the power container (5) is provided with a high-power turbine device one (501) and a low-power turbine device two (502); the airflow channel (6) is a three-way pipe; One of the three-way valves (601) is connected to the power intake of the high-power turbine device 1 (501) and the low-power turbine device 2 (502) through the airflow channel (6). The other two three-way valves (601) are connected to the high tide chamber and the low tide chamber, respectively.

6. The wind turbine coupled multiple resonance OWC wave energy generation device according to claim 1, characterized in that: The lower opening of the oscillating water column (2) is the water inlet, and the water inlet of the oscillating water column (2) is located on one side of the lower end of the oscillating water column (2); The inlet of the oscillating water column (2) has a constriction channel (201); the opening size of the constriction channel (201) near the end of the oscillating water column (2) is smaller than the opening size of the end of the constriction channel (201) away from the oscillating water column (2); The upper end of the oscillating water column (2) is an exhaust port, and the upper end of the oscillating water column (2) is connected to the internal cavity of the shared air chamber (3).

7. The wind turbine coupled multiple resonance OWC wave energy generation device according to claim 1, characterized in that: The oscillating water columns (2) of the two adjacent oscillating water column groups are staggered.

Images