Mooring type deep sea observation system based on lift type water turbine

Abstract

The application discloses a mooring type deep sea observation system based on a lift type water turbine, which comprises a suspended sea current energy power generation device, a deep sea base station and an underwater autonomous vehicle; the suspended sea current energy power generation device is connected with the deep sea base station, and the deep sea base station is used for providing functions for the underwater autonomous vehicle; the application can greatly reduce the cost and period of ocean observation by using deep sea current energy to supply power for ocean observation equipment; the mooring type deep sea observation system based on the lift type water turbine is provided, and the deep sea observation system is composed of the underwater autonomous vehicle, the deep sea base station and the suspended sea current energy power generation system. The suspended sea current energy power generation system is connected with the deep sea base station through an underwater cable and is suspended in water. The suspended sea current energy power generation system provides energy for the underwater autonomous vehicle and the sensor carried by the suspended sea current energy power generation system by using deep sea current energy, and energy supply is not needed for a long time stop of an investigation ship. The underwater autonomous vehicle is provided with energy by means of wireless charging.

Description

Technical Field

[0001] This invention belongs to the field of deep-sea observation technology, and specifically relates to a moored deep-sea observation system based on a lift turbine. Background Technology

[0002] The exploration and development of the ocean, especially the deep sea, depends on the development of marine science and technology. The emergence of any marine scientific perspective and the development of marine disciplines must be based on reliable observational data. Autonomous underwater vehicles (AUVs) are a new type of mobile marine environmental observation equipment. They possess autonomous power and navigation systems and can be equipped with various sensors to conduct dynamic and three-dimensional observations of the marine environment. However, due to limitations in battery capacity, the operating range and time of AUVs are very limited, requiring ship-based recovery stations for energy replenishment. This significantly restricts the observation range of AUVs and greatly increases observation costs. Ocean buoys and moorings are also important marine observation equipment. Similarly, due to battery capacity limitations, their operating cycle is less than 60 days, preventing them from observing marine data for extended periods.

[0003] Meanwhile, the current velocity in the deep sea is relatively low, ranging from 0.1 m / s to 0.5 m / s. The starting velocity of traditional water turbines is much higher than this velocity, making it impossible to achieve low-speed startup. Summary of the Invention

[0004] The purpose of this invention is to provide a moored deep-sea observation system based on a lift turbine to solve the problems of not being able to conduct long-term deep-sea observations and being unable to start up under low-velocity deep-sea conditions.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The moored deep-sea observation system based on a lift turbine includes a suspended ocean current power generation device, a deep-sea base station, and an underwater autonomous vehicle; the suspended ocean current power generation device is connected to the deep-sea base station, which is used to power the underwater autonomous vehicle.

[0007] The suspended ocean current power generation device includes a floating body, a pressure-resistant cavity, a high-solidity lift turbine, a magnetic drive device, a transmission and support device, a generator, an energy storage device, and a lower counterweight. The floating body and the lower counterweight are respectively installed at the top and bottom of the pressure-resistant cavity. The high-solidity lift turbine is installed on the pressure-resistant cavity through the magnetic drive device, and the high-solidity lift turbine and the magnetic drive device are coaxially connected. Inside the pressure-resistant cavity, the magnetic drive device is connected to the generator through the transmission and support device, and the generator is connected to the energy storage device.

[0008] Furthermore, the pressure-resistant cavity includes an outer compartment, a barrier plate, and an inner compartment; the barrier plate is installed inside the pressure-resistant cavity, dividing the pressure-resistant cavity into an outer compartment and an inner compartment, and the side wall of the outer compartment has several connecting holes, allowing the outer compartment to communicate with seawater.

[0009] Furthermore, the magnetic drive system is divided into an active rotation part and a passive rotation part. The active rotation part of the magnetic drive system is located in the outer compartment and is coaxially mounted with the high-solidity lift turbine. The passive rotation part is located in the inner compartment and is coaxially connected to the generator through a transmission and support device.

[0010] Furthermore, both the active rotating part and the passive rotating part are provided with several centrally symmetrically installed permanent magnets, and the magnetic poles of the permanent magnets are installed in opposite directions to the adjacent permanent magnets.

[0011] Furthermore, the blades of a high-solidity lift turbine are composed of blade elements with curvature, the curvature of which is equal to the curvature of the circle in which the blade element is located.

[0012] Furthermore, the energy storage device is connected to the deep-sea base station via an underwater cable.

[0013] Furthermore, the deep-sea base station includes a pressure-resistant shell, a control and energy storage device, a sensor system, and a wireless charging and connection device; the wireless charging and connection device and the sensor system are installed on the side of the pressure-resistant shell, and the control and energy storage device is installed inside the pressure-resistant shell, providing power to the wireless charging and connection device and the sensor system.

[0014] Furthermore, the underwater autonomous vehicle includes an underwater autonomous vehicle body, a wireless charging device, an observation system, and a fin-shaped antenna; the wireless charging device is installed at the head of the underwater autonomous vehicle body, and the observation system and the fin-shaped antenna are installed on the upper part of the underwater autonomous vehicle body.

[0015] Compared with the prior art, the present invention has the following technical effects:

[0016] This invention utilizes deep-sea current energy to power marine observation equipment, significantly reducing the cost and duration of ocean observation. It proposes a moored deep-sea observation system based on a lift-type water turbine. This system consists of an underwater autonomous vehicle (AUV), a deep-sea base station, and a suspended ocean current energy generation system. The suspended ocean current energy generation system is connected to the deep-sea base station via an underwater cable and floats in the water. The system uses deep-sea current energy to power the AUV and its onboard sensors, eliminating the need for the research vessel to dock for extended periods to recharge. The AUV is powered wirelessly.

[0017] This invention adds a curvature to the original planar blade element design. This curvature is equal to the curvature of the circle containing the blade element center and the rotation center, making the rotational angular velocity on the same blade element the same. This maximizes the performance parameters of the blade element near the blade root and greatly improves the overall start-up performance of the lift turbine.

[0018] This invention utilizes an upper floating body to generate buoyancy and a lower counterweight to generate gravity. When an ocean current passes over the suspended ocean current energy generation system, the high-solidity lift turbine begins to rotate from rest. The suspended ocean current energy generation system tilts at a small angle due to the torque generated by the ocean current. At this point, gravity and buoyancy are not aligned, thus generating a balancing torque that cancels out the turbine's rotational torque. This prevents further attitude changes in the suspended ocean current energy generation system, achieving stability. Attached Figure Description

[0019] Figure 1 Axonometric drawing of a moored deep-sea observation system based on a lift turbine

[0020] Figure 2 A perspective axonometric drawing of a moored deep-sea observation system based on a lift turbine.

[0021] Figure 3 Front view of a moored deep-sea observation system based on a lift turbine

[0022] Figure 4 A perspective front view of a moored deep-sea observation system based on a lift turbine.

[0023] Figure 5 Axonometric drawing of a suspended ocean current power generation system

[0024] Figure 6 Perspective axonometric drawing of a suspended ocean current power generation system

[0025] Figure 7 Front view of a suspended ocean current power generation system

[0026] Figure 8 Perspective front view of a suspended ocean current power generation system

[0027] Figure 9 Axonometric view of pressure-resistant cavity 2

[0028] Figure 10 Pressure-resistant cavity 2 perspective front view

[0029] Figure 11 Axonometric view of magnetic transmission device 4 and sealed cavity 2

[0030] Figure 12 Perspective front view of part 4 of the magnetic transmission device

[0031] Figure 13 Side view of the passively rotating part 42

[0032] Figure 14 Schematic diagram of magnetic transmission device 4

[0033] Figure 15 A comparison diagram of a high-solidity lift turbine and a conventional lift turbine.

[0034] Figure 16 Schematic diagram of the passive attitude adjustment principle of a suspended ocean current power generation system

[0035] Figure 17 Schematic diagram of the passive attitude adjustment principle of a suspended ocean current power generation system

[0036] Figure 18 Axonometric View of an Underwater Autonomous Vehicle

[0037] Figure 19 A schematic diagram of a moored deep-sea observation system based on a lift turbine. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings:

[0039] Please see Figures 1 to 19 A moored deep-sea observation system based on a lift turbine consists of a suspended ocean current power generation system, a deep-sea base station, and an underwater autonomous vehicle. The suspended ocean current power generation system comprises a floating body 1, a pressure-resistant cavity 2, a high-solidity lift turbine 3, a magnetic drive device 4, a transmission and support device 5, a generator 6, an energy storage device 7, a lower counterweight 8, and an underwater cable 9. The deep-sea base station comprises a pressure-resistant outer shell 10, a control and energy storage device 11, a sensor system 12, and a wireless charging device and connection system 13. The underwater autonomous vehicle comprises an underwater autonomous vehicle body 14, a wireless charging device 15, an observation system 16, and a fin-shaped antenna 17.

[0040] Figure 1 This is an isometric drawing of a moored deep-sea observation system based on a lift turbine. Figure 2 This is a perspective axonometric drawing of a moored deep-sea observation system based on a lift turbine. Figure 3 This is a front view of a moored deep-sea observation system based on a lift turbine. Figure 4 This is a perspective front view of a moored deep-sea observation system based on a lift turbine.

[0041] Figure 5 This is an isometric drawing of a suspended ocean current power generation system. Figure 6 A perspective axonometric drawing of a suspended ocean current power generation system. Figure 7 This is a front view of a suspended ocean current power generation system. Figure 8This is a perspective front view of a suspended ocean current power generation system. The upper buoy 1 and lower counterweight 8 are mounted on a pressure-resistant cavity 2. A high-solidity lift turbine 3 is mounted on the pressure-resistant cavity 2 via a magnetic transmission device 4. The magnetic transmission device 4 consists of an active rotating part and a passive rotating part, both of which are mounted on the pressure-resistant cavity 2. The high-solidity lift turbine 3 and the active rotating part 4 are coaxially connected. A transmission and support device 5, a generator 6, and an energy storage device 7 are installed inside the pressure-resistant cavity 2. The passive rotating part, the magnetic transmission device 4, the transmission and support device 5, and the generator 6 are coaxially connected.

[0042] Figure 9 This is a perspective axonometric view of pressure-resistant cavity 2. Figure 10 This is a perspective front view of the pressure-resistant cavity 2. The pressure-resistant cavity 2 consists of an outer compartment 21 and an inner compartment 22. The side wall of the outer compartment 21 has several connecting holes, allowing the outer compartment to be directly connected to seawater. The outer compartment 21 and the inner compartment 22 are connected by a circular partition plate, and the inner compartment 22 is completely isolated from seawater.

[0043] Figure 11 A perspective axonometric drawing of the components of the magnetic transmission device 4 and the sealed cavity 2. Figure 12 This is a perspective front view of the magnetic transmission device 4. Figure 13 This is a side view of the active rotating part 41. The magnetic transmission device 4 consists of two sets of several centrally symmetrically mounted permanent magnets. These permanent magnets are magnetized in the thickness direction, and the magnetic poles of adjacent permanent magnets are installed in opposite directions. The active rotating magnetic transmission device 41 is installed in the outer compartment 21 and coaxially with the high-solidity lift turbine 3, while the passive rotating part 42 is installed in the inner compartment 22 and coaxially with the generator 6.

[0044] Figure 14 This is a schematic diagram of the magnetic transmission device 4. The magnetic transmission device 4 consists of several centrally symmetrically mounted permanent magnets. The magnetic poles of these permanent magnets are installed in opposite directions to those of adjacent permanent magnets. Due to the principle of attraction between opposite poles and repulsion between like poles, torque is transmitted even when misalignment occurs during magnetic transmission. This non-contact transmission allows for the reduction of dynamic sealing components, enabling the pressure-resistant cavity 2 to be sealed as a single static seal, greatly reducing the risk of leakage. Furthermore, the speed ratio of the upper and lower parts of the magnetic transmission device is equal to the number of magnetic poles in the upper and lower parts of the device. Therefore, different speed ratios can be achieved by controlling the number of magnetic poles, thus reducing the need for the wear-prone speed increaser (gearbox). This further increases the stability and reliability of the system.

[0045] Figure 15This is a comparison diagram of a high-solidity lift turbine 3 and a conventional lift turbine. Because high-solidity turbines, suitable for deep-sea applications, have a larger chord length, the distance of the curve from the center of rotation varies significantly at different positions on the same blade element cross-section. Therefore, this invention adds a curvature to the originally planar blade element design; this curvature is equal to the curvature of the circles containing the blade element center and the center of rotation. This innovative design method ensures that the rotational angular velocity on the same blade element is the same, maximizing the performance parameters of the blade element near the blade root and significantly improving the overall start-up performance of the lift turbine.

[0046] Figure 16 This is a schematic diagram (front view) illustrating the passive attitude adjustment principle of a suspended ocean current power generation system. Figure 17 This is a schematic diagram (side view) illustrating the passive attitude adjustment principle of a suspended ocean current energy generation system. Because the high-solidity lift turbine 3 continuously converts ocean current energy into its own kinetic energy, the ocean current exerts a continuous torque on it. To prevent the suspended ocean current energy generation system from capsizing under this continuous torque, this invention incorporates a passive attitude adjustment design. The invention uses an upper float 1 to generate buoyancy and a lower counterweight 8 to generate gravity. When an ocean current passes over the suspended ocean current energy generation system, the high-solidity lift turbine 3 begins to rotate from rest. The torque generated by the ocean current causes the suspended ocean current energy generation system to tilt at a small angle. At this point, gravity and buoyancy are not aligned, generating a balancing torque that cancels out the turbine's rotational torque, preventing further attitude changes and thus stabilizing the system.

[0047] Figure 18 This is a perspective axonometric view of an underwater autonomous vehicle (AUV). The AUV consists of an AUV body 14, a wireless charging device 15, an observation system 16, and a fin-shaped antenna 17. The wireless charging device 15 is mounted on the head of the AUV body 14. The observation system 16 and the fin-shaped antenna 17 are mounted on the upper part of the AUV body 14.

[0048] Figure 19This is a schematic diagram of a moored deep-sea observation system based on a lift turbine. The deep-sea base station and the suspended ocean current power generation system are deployed via a research vessel, which then installs and anchors the deep-sea base station to the seabed. One or more autonomous underwater vehicles (AUVs) are released from the research vessel to nearby waters and cruise near the deep-sea base station. The AUVs utilize the observation system 16 installed within them to measure long-term hydrological data. The deep-sea base station utilizes its sensor system 12 to measure long-term hydrological data. The high-solidity lift turbine 3 rotates under the influence of the water flow, converting the kinetic energy of the ocean current into mechanical energy. This mechanical energy is then transferred to the generator 6 via a magnetic transmission device 4, where it is converted into electrical energy and stored in the energy storage device 7 as chemical energy. The energy is then transmitted to the underwater base station via an underwater cable 9. When the underwater autonomous vehicle's energy level is low, it moves to the vicinity of a deep-sea base station and docks with the wireless charging device and docking device 15. The power from the deep-sea base station is transferred to the underwater autonomous vehicle via wireless charging, enabling long-term cruising. Simultaneously, hydrological data measured by the sensor system 12 at the deep-sea base station is transmitted to the underwater autonomous vehicle via wireless data transmission.

[0049] This operational method could involve a single deep-sea base station working in conjunction with several autonomous underwater vehicles (AUVs), or multiple deep-sea base stations working in conjunction with several AUVs, to achieve greater system stability. The AUVs periodically surface and transmit hydrological information about their location to a communication satellite via their fin-shaped antennas 17.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A moored deep-sea observation system based on a lift turbine, characterized in that, It includes a suspended ocean current power generation device, a deep-sea base station, and an underwater autonomous vehicle; the suspended ocean current power generation device is connected to the deep-sea base station, which is used to power the underwater autonomous vehicle. The suspended ocean current power generation device includes a floating body (1), a pressure-resistant cavity (2), a high-solidity lift turbine (3), a magnetic transmission device (4), a transmission and support device (5), a generator (6), an energy storage device (7), and a lower counterweight (8); the floating body (1) and the lower counterweight (8) are respectively installed on the top and bottom of the pressure-resistant cavity (2); the high-solidity lift turbine (3) is installed on the pressure-resistant cavity (2) through the magnetic transmission device (4), and the high-solidity lift turbine (3) and the magnetic transmission device (4) are coaxially connected; the magnetic transmission device (4) inside the pressure-resistant cavity (2) is connected to the generator (6) through the transmission and support device (5), and the generator (6) is connected to the energy storage device (7); The pressure-resistant cavity (2) includes an outer compartment (21), a barrier plate (23), and an inner compartment (22); the barrier plate (23) is installed inside the pressure-resistant cavity (2) and divides the pressure-resistant cavity (2) into an outer compartment (21) and an inner compartment (22). The side wall of the outer compartment (21) has several connecting holes, and the outer compartment is connected to seawater. The magnetic drive device (4) is divided into an active rotation part and a passive rotation part. The active rotation part of the magnetic drive device (4) is located in the outer compartment (21) and is coaxially installed with the high-solidity lift turbine (3). The passive rotation part is located in the inner compartment (22) and is coaxially connected with the generator (6) through the transmission and support device (5). The blades of the high-solidity lift turbine (3) are composed of blade elements with curvature, and the curvature of the blade element is equal to the curvature of the circle in which the blade element is located. The deep-sea base station includes a pressure-resistant shell (10), a control and energy storage device (11), a sensor system (12), and a wireless charging and connection device (13); the wireless charging and connection device (13) and the sensor system (12) are installed on the side of the pressure-resistant shell (10), and the control and energy storage device (11) is installed inside the pressure-resistant shell, providing power to the wireless charging and connection device (13) and the sensor system (12).

2. The moored deep-sea observation system based on a lift turbine according to claim 1, characterized in that, Both the active rotating part and the passive rotating part are equipped with several centrally symmetrically installed permanent magnets, and the magnetic poles of the permanent magnets are installed in opposite directions to the adjacent permanent magnets.

3. The moored deep-sea observation system based on a lift turbine according to claim 1, characterized in that, The energy storage device (7) is connected to the deep-sea base station via an underwater cable (9).

4. The moored deep-sea observation system based on a lift turbine according to claim 1, characterized in that, The underwater autonomous vehicle includes an underwater autonomous vehicle body (14), a wireless charging device (15), an observation system (16), and a fish fin antenna (17); the wireless charging device (15) is installed at the head of the underwater autonomous vehicle body (14), and the observation system (16) and the fish fin antenna (17) are installed on the upper part of the underwater autonomous vehicle body (14).

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