Self-adaptive elastic tube double-oscillation water column wave energy conversion device

Abstract

The invention discloses a self-adaptive elastic tube double-oscillation water column wave energy conversion device, which belongs to the technical field of ocean energy utilization and comprises an elastic tube, hard tubes at two ends and an in-tube oscillation water column, and an adjusting assembly in the hard tubes is electrically connected with a free end turbine device and a controller. The adjusting assembly comprises internal and external liquid level sensors, a bidirectional water pump and adjusting blades capable of surrounding air adjusting holes. The device combines a double-oscillation water column with the elastic pipe, improves the natural oscillation period, is easy to resonate with waves, converts wave energy at two ends, absorbs energy along the full length of the elastic pipe, and improves the energy capturing efficiency and the space range; the system oscillation period can be adjusted by adjusting the pore diameter of the air hole, and the efficient frequency bandwidth is widened; different wave frequencies are matched, and the power generation efficiency of the device is improved. The flexible structure of the elastic tube improves the survivability under extreme wave conditions; the two-way water pump can adjust internal water pressure according to wave water level and wave height to adapt to tide level change and enhance protection, the water surface of an oscillating water column in the pipe is stable, and the overall stability is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of ocean energy utilization, and in particular relates to an adaptive elastic tube double-oscillation water column wave energy conversion device. Background Art

[0002] As one of the renewable energy sources, wave energy is derived from solar energy and is inexhaustible. The key advantage of wave energy is its high energy density, which is about 2-3kw / m 2 , while wind energy is 0.4-0.6kw / m 2 , solar energy is 0.1-0.2kw / m 2 At the same time, unlike the intermittent nature of wind and solar energy, waves can guarantee the provision of clean electricity around the clock. Furthermore, wave energy exists in the form of oscillating mechanical energy, which can converge and form in the open sea and diffuse to the nearshore with minimal energy dissipation. Developing wave energy in nearshore waters has many advantages: wave power generation devices are protected from damage by extreme waves in climate environments such as storms and tsunamis; they are easier to install and maintain; and they can be constructed alongside nearshore marine structures, generating electricity while dissipating waves.

[0003] The oscillating water column type is one of the most widely used wave energy conversion devices in various countries around the world. The oscillating water column wave energy conversion device mainly consists of an air chamber with an opening at the bottom, a bidirectional air turbine at the top, and a generator. During operation, the waves push the water column in the air chamber to rise and fall, thereby driving the reciprocating motion of the air above the water column. The reciprocating airflow drives the turbine to rotate and generate electricity when passing through the turbine, and the turbine usually has the ability to rotate unaffected by the direction of the airflow. Compared with other types, this technology has been developed for many years, and its structure and mechanical components are relatively simple, easier to install and maintain, and does not require deep-water mooring and long-distance underwater cables. However, faced with complex and changeable ocean wave conditions, the existing technology of this type of device still has the following problems:

[0004] The natural period of this type of device is usually smaller than the wave period, making it difficult to form system resonance, resulting in a small displacement and low efficiency; this type of device is directly affected by waves, and accidents of being damaged by waves under extreme sea conditions often occur; this type of device is a rigid device with a fixed structure, and the high-efficiency frequency band that can form resonance is relatively single, and the liquid surface inside the air chamber is prone to shaking under the action of smaller period waves, making it difficult to form an effective up and down oscillation motion, further reducing the stability and working efficiency of the device.

[0005] Therefore, we need to design an adaptive elastic tube double oscillation water column wave energy conversion device to solve these problems. Summary of the Invention

[0006] In response to the shortcomings of existing structures, the present invention proposes an adaptive elastic tube double-oscillation water column wave energy conversion device, which allows waves to act on an elastic water storage pipe of a certain length. The pipe captures wave energy along the way and forms a periodic oscillating flow inside the device that is consistent with the external wave period, forming high-amplitude oscillating water columns at both ends, and then generating electricity through a turbine. The part of the device that directly interacts with waves is an elastic tube, and the wave energy is continuously converted into mechanical energy of the internal water body along the length of the tube, which greatly reduces the destructive force of waves on the device while maintaining high efficiency; the internal water body oscillates periodically along the elastic tube and the air chamber. During operation, the water surface of the air chamber is stable and basically there is no sloshing, which increases the stability and efficiency of the device; the adaptive control system device controls the opening degree of the air hole and the internal water pressure through the incident wave and the wave height and periodic signal in the air chamber, and then adjusts the oscillation period and amplitude of the device to make it close to or consistent with the period of the external wave, forming system resonance and forming a liquid tank sloshing effect inside, which can simultaneously form efficient wave energy conversion in the head and tail air chambers, while greatly improving the wave energy conversion efficiency of the device, it can adapt to different tide levels and the control device will not be damaged under extreme wave conditions.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] An adaptive elastic tube dual-oscillating water column wave energy conversion device comprises an elastic tube, hard tubes fixedly disposed at both ends of the elastic tube, oscillating water columns disposed within the elastic tube and the hard tube, an adjustment component fixedly disposed within the hard tube, an air chamber disposed between the oscillating water column and the adjustment component, a turbine device fixedly disposed at the free end of the hard tube, and a controller electrically connected to the adjustment component and the turbine device, respectively;

[0009] The elastic tube can adaptively deform according to the wave shape, and can more fully capture the wave energy of different wavelengths and amplitudes, avoiding the problem that traditional rigid pipes are easily damaged in complex wave environments. The hard tube provides a stable installation and operation carrier for the internal oscillating water column, regulating components and turbine device, ensuring the stable function of the core components. As the key medium for energy conversion, the oscillating water column can achieve reciprocating motion through the propulsion of waves, thereby compressing or expanding the air chamber and providing a power source for the turbine device. The regulating component and the turbine device are electrically connected through a controller to form an intelligent control system. The working state of the regulating component can be adjusted in real time according to changes in wave energy, optimizing the operating efficiency of the turbine device and ensuring that the device can stably and efficiently convert wave energy under different wave conditions.

[0010] The regulating assembly includes an internal liquid level sensor, an external liquid level sensor, a two-way water pump and several regulating blades. The external liquid level sensor and the two-way water pump are both fixed on the outside of the hard tube, and the two-way water pump is connected to the inside of the hard tube. The internal liquid level sensor and the several regulating blades are both located inside the hard tube, and the several regulating blades jointly enclose the air outlet, and the area of ​​the air outlet can be adjusted by the mutual cooperation of the several regulating blades.

[0011] By adjusting the dual settings of the internal liquid level sensor and the external liquid level sensor in the assembly, the liquid level changes of the oscillating water column inside and outside the hard pipe can be accurately monitored, providing the controller with comprehensive and real-time liquid level data to ensure accurate perception of changes in wave energy. By using a two-way water pump connected to the inside of the hard pipe, water can be added to the pipe when the liquid level is too low to maintain the stable height of the oscillating water column, and water can be drained out when the liquid level is too high to avoid excessive pressure in the pipe that may damage the device, effectively ensuring the stability of the oscillating water column movement and the safety of the device. Several regulating blades are located inside the hard pipe and together enclose the air outlet. By adjusting the mutual coordination between the blades to adjust the air outlet area, the gas flow rate and flow rate can be flexibly controlled according to the changes in air pressure in the air chamber and the operating requirements of the turbine device.

[0012] Preferably, the adjustment assembly includes a fixed ring plate, a driving gear ring and an adjustment motor. The fixed ring plate is fixedly connected to the inner wall of the hard tube. Several adjustment blades are slidably arranged on the fixed ring plate, and several adjustment blades jointly surround the air outlet. Each adjustment blade is provided with a guide groove. The fixed ring plate is also provided with guide pins with the same number as the adjustment blades, and each guide pin is inserted into the guide groove one by one. One end face of the adjustment gear ring is hinged to several adjustment gear rings respectively. The adjustment motor is fixed on the hard tube, and a driving gear is fixedly provided at the output end, and the driving gear is meshed with the driving gear ring.

[0013] With this arrangement, the fixed ring plate in the adjustment assembly is fixedly connected to the inner wall of the rigid tube, providing a stable mounting base for the adjustment blades. This ensures that the adjustment blades remain on the preset trajectory during movement, preventing a decrease in adjustment accuracy due to shaking. The adjustment blades are slidably mounted on the fixed ring plate, and the guide pins on the fixed ring plate and the guide grooves on the adjustment blades form a precise guide structure, allowing the adjustment blades to move more smoothly and more synchronously during opening and closing, effectively ensuring the accuracy and reliability of airhole area adjustment. The drive ring is hinged to several adjustment blades, and the adjustment motor engages with the drive ring through a drive gear, converting the motor's rotational motion into circular motion of the drive ring, which in turn drives all the adjustment blades to slide synchronously, achieving uniform adjustment of the airhole area. This combined drive method of gear transmission and articulation offers high transmission efficiency and stable power transmission. By controlling the speed and direction of the adjustment motor, the speed and amplitude of airhole area adjustment can be precisely controlled to meet the adjustment requirements under different wave energy conditions, further improving the response speed and control accuracy of the adjustment assembly.

[0014] Preferably, the turbine device includes a mounting tube, a rotor and a guide plate, the mounting tube is connected to the air chamber through the air hole, the rotor is rotatably arranged in the mounting tube, drive blades are fixedly arranged on the rotor, and the guide plates are fixed in the mounting tubes on both sides of the rotor, and the guide direction of the guide plates matches the drive blades.

[0015] With this arrangement, the turbine's mounting tube connects to the air chamber through the air holes, creating a stable channel for gas flow. This ensures that the airflow generated by the oscillating water column movement in the air chamber can directly and efficiently enter the mounting tube, driving the rotor to rotate. The rotor is configured to rotate within the mounting tube, and the drive blades fixed thereto can drive the rotor's rotation under the action of the airflow, converting the kinetic energy of the gas into mechanical energy of the rotor, providing power for subsequent energy utilization processes such as power generation. Guide plates are fixed within the mounting tubes on both sides of the rotor, and their diversion direction matches that of the drive blades. They can guide and rectify the airflow entering the mounting tube, allowing the airflow to act more evenly and stably on the surface of the drive blades, avoiding uneven force on the drive blades due to airflow turbulence, reducing vibration and noise from the rotor's rotation, and improving the utilization rate of the airflow energy, ensuring the rotor can rotate continuously and stably, and enhancing the energy conversion efficiency of the turbine.

[0016] Preferably, an upper guide plate is provided above the rotor, an upper fairing is provided on the top of the upper guide plate, a lower guide plate is provided below the rotor, a lower fairing is provided on the bottom of the lower guide plate, and the guide directions of the upper guide plate and the lower guide plate are the same.

[0017] With this arrangement, the guide plates on both sides of the rotor can adjust the direction of the airflow on both sides of the rotor, reduce the energy loss of the airflow during the flow process, and then drive the rotor to rotate through the driving blades; the upper fairing and the lower fairing can further optimize the flow path of the airflow in the installation tube, which can effectively reduce the eddy current and energy loss of the airflow during the flow process, so that the airflow acts on the driving blades at a more optimal angle and speed, maximizes the transfer of airflow energy to the rotor, significantly improves the energy capture efficiency of the turbine device, and thus improves the output power of the entire wave energy conversion device.

[0018] Preferably, the axis of the hard tube is perpendicular to the horizontal plane, and the air chamber in the hard tube connected to the same elastic tube is separated by the oscillating water column.

[0019] With this arrangement, the axis of the rigid tube is perpendicular to the horizontal plane, allowing the oscillating water column to achieve a more natural and efficient up and down reciprocating motion under the combined effects of gravity and wave forces. Compared to horizontally arranged pipes, the vertical structure can reduce frictional resistance during the movement of the water column, improve the flexibility and response speed of the water column movement, and more fully utilize the vertical energy of the waves. The air chamber in the rigid tube connected to the same elastic tube is separated by the oscillating water column, forming two independent energy conversion units. Each unit can operate independently according to the wave conditions at its location, avoiding energy interference and loss caused by the mutual flow of air between the two air chambers. This independent unit design not only increases the device's capture range of wave energy, but also allows the other unit to continue to operate normally when one unit fails, thereby improving the operational stability and fault tolerance of the entire device.

[0020] Preferably, an actuating pin is fixedly provided on the driving gear ring, and the regulating blade is hinged to the driving gear ring via the actuating pin.

[0021] With this arrangement, the adjusting blades and the driving gear ring are connected to each other through the action pin, which can synchronously drive all the adjusting blades to move when the driving gear ring rotates, thereby adjusting the pore area, thereby adjusting the impedance of the gas flow in the air chamber, and adjusting the frequency of the oscillating water column.

[0022] The advantages and positive effects of the present invention are:

[0023] The present invention effectively combines two oscillating water column wave energy power generation devices with an elastic tube device, thereby increasing the device's natural oscillation period and facilitating resonance with waves. Two oscillating water columns are used at both ends to convert wave energy, thereby improving the device's energy capture efficiency. Waves drive the elastic tube along the length of the tube, absorbing wave energy throughout the entire length, thereby increasing the spatial range of wave energy capture by the oscillating water column wave energy power generation device. By controlling the pore aperture, the device system oscillation period can be adjusted, increasing the device's high-efficiency frequency bandwidth, enabling efficient conversion under incident wave conditions of different frequencies. The elastic tube is the direct interface between the wave and the device, and the tube is a flexible device that is not easily damaged under extreme wave conditions, thereby improving the device's survivability. The internal water pressure can be adjusted by a bidirectional water pump according to the incident wave water level and wave height conditions, allowing the device to adapt to changes in ocean tides and prevent damage to the device under extreme wave conditions, thereby significantly improving the adaptability and survivability of the wave energy conversion device. The internal water body oscillates as a whole in the tube, and the surface of the oscillating water column is stable, further improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic cross-sectional view of the internal structure of the present invention;

[0027] Figure 3 1 is a schematic structural diagram of a turbine device according to the present invention;

[0028] Figure 4 It is a schematic diagram of the positions of the regulating blades and stomata of the present invention;

[0029] Figure 5 yes Figure 2 A magnified view of the structure in Figure 2.

[0030] The following are the descriptions of the reference numerals:

[0031] 1. Elastic tube; 2. Hard tube; 3. Air chamber; 4. Oscillating water column; 5. Adjustment assembly; 501. Adjustment blade; 502. Action pin; 503. Guide pin; 504. Guide groove; 505. Drive gear ring; 506. Drive gear; 507. Fixed ring plate; 508. Air hole; 509. Adjustment motor; 510. Internal liquid level sensor; 511. External liquid level sensor; 512. Bidirectional water pump; 6. Turbine device; 61. Rotor; 62. Drive blade; 63. Upper guide plate; 64. Upper fairing; 65. Mounting pipe; 66. Lower guide plate; 67. Lower fairing; 7. Controller; 8. External water surface. DETAILED DESCRIPTION

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0033] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0034] The present invention will be further described below with reference to the accompanying drawings:

[0035] Example 1: Figure 1-Figure 5 As shown, an adaptive elastic tube double oscillating water column wave energy conversion device includes an elastic tube 1, hard tubes 2 are fixedly provided at both ends of the elastic tube 1, oscillating water columns 4 are provided in the elastic tube 1 and the hard tube 2, an adjustment component 5 is fixedly provided in the hard tube 2, an air chamber 3 is provided between the oscillating water column 4 and the adjustment component 5, a turbine device 6 is fixedly provided at the free end of the hard tube 2, and a controller 7 is electrically connected to the adjustment component 5 and the turbine device 6 respectively.

[0036] The overall structure is designed for the process of capturing, converting, and outputting wave energy. The elastic tube 1 serves as the front-end carrier for wave energy capture. Its deformation drives the internal oscillating water column 4 to reciprocate, and the movement of the oscillating water column 4 directly changes the volume and pressure of the air chamber 3. The airflow generated by the pressure change in the air chamber 3 needs to be regulated by the regulating component 5 and then enters the turbine device 6, which ultimately completes the energy conversion.

[0037] The controller 7 adjusts the height of the internal oscillating water column 4 and the opening size of the air hole 508 by controlling the regulating component 5, so that the device can adapt to external tide level changes and extreme wave conditions.

[0038] The regulating component 5 includes an internal liquid level sensor 510, an external liquid level sensor 511, a two-way water pump 512 and several regulating blades 501. The external liquid level sensor 511 and the two-way water pump 512 are both fixed on the outside of the hard tube 2, and the two-way water pump 512 is connected to the inside of the hard tube 2. The internal liquid level sensor 510 and the several regulating blades 501 are both located inside the hard tube 2, and the several regulating blades 501 jointly surround the air outlet 508, and the area of ​​the air hole 508 can be adjusted by the mutual cooperation of the several regulating blades 501.

[0039] The internal liquid level sensor 510 of the regulating component 5 monitors the height of the oscillating water column 4 in the hard tube 2, and the external liquid level sensor 511 synchronously obtains the external wave liquid level data. After both transmit the data to the controller 7, the controller 7 can determine whether the movement state of the oscillating water column 4 is adapted to the current wave conditions; if the liquid level deviation is too large, the controller 7 drives the two-way water pump 512 to replenish water or drain water to maintain the effective working height of the oscillating water column 4; at the same time, the controller 7 controls the regulating blade 501 to adjust the area of ​​the air hole 508 according to the pressure of the air chamber 3 and the air flow demand of the turbine device 6 to ensure that the air flow parameters entering the turbine device 6 meet the operating requirements.

[0040] The adjustment component 5 includes a fixed ring plate 507, a driving gear ring 505 and an adjustment motor 509. The fixed ring plate 507 is fixedly connected to the inner wall of the rigid tube 2. Several adjustment blades 501 are slidably arranged on the fixed ring plate 507, and several adjustment blades 501 jointly surround the air outlet 508. Each adjustment blade 501 is provided with a guide groove 504. The fixed ring plate 507 is also provided with the same number of guide pins 503 as the adjustment blades 501, and each guide pin 503 is inserted into the guide groove 504 one by one, and is hinged to several adjustment gear rings at one end face of the adjustment gear ring. The adjustment motor 509 is fixed on the rigid tube 2, and a driving gear 506 is fixedly provided at the output end, and the driving gear 506 is meshed with the driving gear ring. The mechanical structure of the adjustment component 5 achieves precise adjustment of the area of ​​the air hole 508 through the linkage of multiple components: when the controller 7 issues a control instruction, the adjustment motor 509 starts and drives the driving gear 506 to rotate, and the meshing transmission of the driving gear 506 and the driving gear ring 505 converts the rotational motion into the circular motion of the driving gear ring 505; since the driving gear ring 505 and the adjustment blade 501 are hinged to each other through the action pin 502, their movement synchronously pulls all the adjustment blades 501 to slide along the fixed ring plate 507, and the cooperation of the guide pin 503 and the guide groove 504 limits the sliding trajectory of the adjustment blade 501, ensuring that all the adjustment blades 501 open and close synchronously and smoothly, thereby accurately changing the area of ​​the air hole 508 formed by the enclosed body.

[0041] The turbine device 6 includes a mounting tube 65, a rotor 61 and a guide plate. The mounting tube 65 is connected to the air chamber 3 through the air hole 508. The rotor 61 is rotatably set in the mounting tube 65. The driving blades 62 are fixed on the rotor 61. The guide plates are fixed in the mounting tube 65 on both sides of the rotor 61, and the guide direction of the guide plates matches the driving blades 62.

[0042] The turbine device 6 generates electricity by utilizing the change in air pressure in the air chamber 3. The airflow generated by the movement of the oscillating water column 4 in the air chamber 3 is regulated by the regulating component 5 and then enters the mounting tube 65 through the air hole 508. The mounting tube 65 serves as an airflow channel to guide the airflow to the rotor 61, while the guide plates on both sides guide the airflow according to the shape and rotation direction of the driving blades 62, so that the airflow acts on the driving blades 62 on the rotor 61 at the optimal angle. The thrust of the airflow on the driving blades 62 drives the rotor 61 to rotate, realizing the conversion of the kinetic energy of the airflow into the mechanical energy of the rotor 61. During the whole process, the structural coordination of the mounting tube 65, the guide plates and the rotor 61 directly determines the energy conversion efficiency.

[0043] An upper guide plate 63 is provided above the rotor 61, an upper fairing 64 is provided on the top of the upper guide plate 63, a lower guide plate 66 is provided below the rotor 61, and a lower fairing 67 is provided on the bottom of the lower guide plate 66. The upper guide plate 63 and the lower guide plate 66 have the same guide direction. The lower guide plate 66 and the lower fairing 67 located below the rotor 61 can rectify and guide the direction of the airflow flowing out of the air chamber 3, while the upper fairing 64 and the upper guide plate 63 can rectify and guide the airflow flowing into the air chamber 3, pre-arrange the airflow entering the mounting pipe 65, reduce vortexes and turbulence in the airflow, and make the airflow act on the driving blades 62 in a more uniform and stable state after being guided by the guide plate. Through the synergistic effect of the two, the efficiency of transmitting the airflow energy to the mechanical energy of the rotor 61 is improved.

[0044] The axis of the rigid tube 2 is perpendicular to the horizontal plane. The air chamber 3 within the rigid tube 2, connected to the same elastic tube 1, is separated by an oscillating water column 4. This vertical orientation of the rigid tube 2 facilitates reciprocating motion of the oscillating water column 4, driven by the combined effects of gravity and wave impact. This motion aligns with the vertical undulation of the waves, improving the response speed of wave energy capture. The air chambers 3 at either end of the same elastic tube 1 are separated by the oscillating water column 4, forming independent pressure systems. When the wave deformation of the elastic tube 1 drives the oscillating water columns 4 at either end, each air chamber 3 generates airflow to drive its corresponding turbine 6. This prevents airflow interference between the air chambers 3 and enables bidirectional capture and utilization of wave energy.

[0045] The working process of this embodiment: before use, first install and fix the device

[0046] First, lay the elastic tube 1 horizontally in the water, with its length aligned with the wave's direction, and the two rigid tubes 2 perpendicular to the horizontal plane. Ensure that the turbine 6 is not submerged by the wave crests, and then pour water into the elastic tube 1 to form an oscillating water column 4 inside.

[0047] In the static state, the liquid level of the internal oscillating water column 4 is higher than the external water surface 8. At this time, the pressure exerted by the internal water on the wall of the elastic tube 1 is greater than the external water pressure, so the elastic tube 1 is in an expanded state. When the crest of the wave passes over the elastic tube 1, the water pressure outside the elastic tube 1 will increase. At this time, the elastic tube 1 will begin to contract under the action of its own elastic force, squeezing the internal water into the rigid tubes 2 at both ends. At this time, the liquid level of the oscillating water column 4 in the rigid tube 2 will rise. The increase in the liquid level of the oscillating water column 4 will reduce the volume of the air chamber 3, and the gas in the air chamber 3 will be discharged outward through the air hole 508. When the wave crest recedes, the water pressure outside the elastic tube 1 will decrease, and the oscillating water column 4 in the rigid tube 2 will flow back into the elastic tube 1, causing the elastic tube 1 to return to the expanded state. During the backflow process of the oscillating water column 4, the liquid level of the oscillating water column 4 will drop. As the liquid level of the oscillating water column 4 drops, the volume of the air chamber 3 will increase, and the external gas will be sucked into it through the air hole 508.

[0048] During the process of gas in the air chamber 3 being discharged and inhaled, the rotor 61 is driven to rotate. In order to reduce the positive energy loss and improve the driving effect of the airflow on the rotor 61, an upper guide plate 63 and a lower guide plate 66 are respectively installed on both sides of the rotor 61. In addition, in order to ensure that the rotation direction of the rotor 61 is consistent during the intake and exhaust processes, the upper guide plate 63 and the lower guide plate 66 have the same direction of guiding the airflow.

[0049] During the entire working process, the internal liquid level sensor 510 will transmit the collected liquid level height information of the oscillating water column 4 to the controller 7. Similarly, the external liquid level sensor 511 will transmit the collected wave liquid level height information to the controller 7. The controller will also control the adjustment motor 509 to rotate, and the adjustment motor 509 will drive the driving gear 506 to rotate. When the driving gear 506 rotates, it will drive all the adjustment blades 501 to move synchronously through the action pin 502 on the driving gear ring 505. When the adjustment blade 501 moves, it will move along a fixed angle and direction with the cooperation of the guide groove 504 and the guide column, so as to adjust the area of ​​the air hole 508, change the impedance of the air flow in or out of the air chamber 3, and then adjust the oscillation period of the internal oscillating water column 4, so that it can achieve efficient conversion under the conditions of incident waves of different frequencies.

[0050] At the same time, the controller 7 analyzes and compares the heights of the internal and external water surfaces 8, and can also control the two-way water pump 512 to pump out the internal water or the external water, so as to adjust the internal water pressure and make it more adaptable to changes in ocean tides to avoid damage under extreme wave conditions.

[0051] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An adaptive elastic tube double oscillation water column wave energy conversion device, characterized by: The invention comprises an elastic tube (1), hard tubes (2) are fixedly provided at both ends of the elastic tube (1), an oscillating water column (4) is provided in the elastic tube (1) and the hard tube (2), an adjusting component (5) is fixedly provided in the hard tube (2), an air chamber (3) is provided between the oscillating water column (4) and the adjusting component (5), a turbine device (6) is fixedly provided at the free end of the hard tube (2), and the controller (7) is electrically connected to the adjusting component (5) and the turbine device (6) respectively; The regulating assembly (5) comprises an internal liquid level sensor (510), an external liquid level sensor (511), a two-way water pump (512) and a plurality of regulating blades (501); the external liquid level sensor (511) and the two-way water pump (512) are both fixed on the outside of the hard tube (2), and the two-way water pump (512) is in communication with the inside of the hard tube (2); the internal liquid level sensor (510) and the plurality of regulating blades (501) are both located inside the hard tube (2), and the plurality of regulating blades (501) jointly enclose an air outlet (508), and the area of ​​the air outlet (508) can be adjusted by the mutual cooperation of the plurality of regulating blades (501).

2. The adaptive elastic tube double oscillation water column wave energy conversion device according to claim 1, characterized in that: The adjustment assembly (5) comprises a fixed ring plate (507), a driving gear ring (505) and an adjustment motor (509). The fixed ring plate (507) is fixedly connected to the inner wall of the hard tube (2). A plurality of adjustment blades (501) are slidably arranged on the fixed ring plate (507), and the plurality of adjustment blades (501) jointly surround an air outlet (508). Each adjustment blade (501) is provided with a guide groove (504). The fixed ring plate (507) is also provided with guide pins (503) the same number as the number of the adjustment blades (501), and each guide pin (503) is inserted into the guide groove (504) in a one-to-one correspondence. The adjustment motor (509) is hinged to the plurality of adjustment gear rings at one end surface of the adjustment gear ring. The adjustment motor (509) is fixed on the hard tube (2), and a driving gear (506) is fixedly arranged at the output end. The driving gear (506) is meshed with the driving gear ring.

3. The adaptive elastic tube double oscillation water column wave energy conversion device according to claim 1, characterized in that: The turbine device (6) includes a mounting tube (65), a rotor (61) and a guide plate. The mounting tube (65) is connected to the air chamber (3) through the air hole (508). The rotor (61) is rotatably arranged in the mounting tube (65). Drive blades (62) are fixedly arranged on the rotor (61). The guide plates are fixed in the mounting tube (65) on both sides of the rotor (61), and the guide direction of the guide plates matches the drive blades (62).

4. The adaptive elastic tube double oscillation water column wave energy conversion device according to claim 3, characterized in that: An upper guide plate (63) is provided above the rotor (61), an upper fairing (64) is provided on the top of the upper guide plate (63), a lower guide plate (66) is provided below the rotor (61), a lower fairing (67) is provided on the bottom of the lower guide plate (66), and the upper guide plate (63) and the lower guide plate (66) have the same flow direction.

5. The adaptive elastic tube double oscillation water column wave energy conversion device according to claim 1, characterized in that: The axis of the hard tube (2) is perpendicular to the horizontal plane, and the air chamber (3) in the hard tube (2) connected to the same elastic tube (1) is separated by the oscillating water column (4).

6. The adaptive elastic tube double oscillation water column wave energy conversion device according to claim 1, characterized in that: An action pin (502) is fixedly provided on the driving gear ring (505), and the regulating blade (501) is hinged to the driving gear ring (505) via the action pin (502).

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