Underwater suspension tunnel pipe joint structure for vertical axis wave flow power generation

Abstract

The invention relates to a vertical axis wave flow power generation underwater suspension tunnel pipe joint structure which comprises a tunnel pipe joint, two annular bases are symmetrically arranged on the outer wall of the tunnel pipe joint, a plurality of vertical axis power generation devices are installed between the annular bases, and the outer wall of the tunnel pipe joint is fixed to a seabed through anchor cable fixing devices. The vertical shaft power generation device is connected with a storage battery module in the tunnel pipe joint through a wire. According to the pipe joint structure, kinetic energy is converted into electric energy through the vertical shaft power generation device by means of a seabed wave flow field, the electric energy is transmitted to the storage battery module to be stored, and direct supply or auxiliary power supply is conducted on operation and maintenance of subsidiary facilities in a tunnel.

Description

Technical Field

[0001] The present invention relates to the technical field of ocean engineering structures, and particularly to an underwater suspended tunnel segment structure for vertical-axis wave and current power generation. Background Art

[0002] In recent years, with the continuous maturity of underwater construction technology, suspended tunnels are expected to become a new type of structure for crossing deep and long water areas after cross-sea bridges and immersed tunnels, playing a role in ocean engineering. An underwater suspended tunnel mainly consists of a tunnel segment structure stably suspended at a certain depth in the ocean, anchor cables for tensioning the tunnel segment structure, and an anchoring foundation for fixing and restricting the displacement of the anchor cables. Compared with traditional crossing structure forms, it has the advantages of being less restricted by water depth and span, having a stronger resistance to harsh climates such as typhoons, and reducing vehicle carbon emissions in transportation, and is regarded as the most competitive cross-sea structure form in this century by domestic and foreign scholars.

[0003] During the implementation and construction of a suspended tunnel system, auxiliary facilities such as a lighting system, a ventilation system, a monitoring system, a fire protection and drainage warning system, etc. need to be installed inside the tunnel, and all the above auxiliary facilities require electrical energy to maintain their normal operation. Based on the specific wave and current environment where the suspended tunnel is located, how to utilize the wave and current environment to generate the energy required for the auxiliary facilities and reduce the energy consumption of the structure during the operation and maintenance process helps to implement the green building structure's low-carbon environmental protection design requirements in the sustainable development strategy.

[0004] The prior art discloses a "fixed underwater suspended tunnel equipped with a wind turbine" (publication number CN115821986A) and a "water suspended tunnel with a wave energy power generation device" (publication number CN115977154A), and designs corresponding energy utilization and conversion systems according to the structural characteristics of the fixed and floating suspended tunnel systems respectively. However, the cable-tensioned suspended tunnel does not have a foundation supported by fixed columns, and the structural burial depth of the water cannot meet the requirements for the arrangement of floating cylinders. It can be seen that the power generation devices or wind turbines disclosed in the prior art cannot be applied to the cable-tensioned suspended tunnel. Summary of the Invention

[0005] In view of the deficiencies in the background art, the technical problem to be solved by the present invention is to provide an underwater suspended tunnel segment structure for vertical-axis wave and current power generation. Based on the characteristics of the cable-tensioned suspended tunnel, this structure converts wave and current energy into electrical energy to meet the energy consumption required for the daily operation of the auxiliary facilities of the suspended tunnel.

[0006] The present invention is achieved by adopting the following technical solutions: An underwater suspended tunnel segment structure for vertical-axis wave and current power generation, comprising a tunnel segment. Two annular bases are symmetrically arranged on the outer wall of the tunnel segment. A plurality of vertical-axis power generation devices are installed between the annular bases. The outer wall of the tunnel segment is fixed to the seabed through a cable fixing device. The vertical-axis power generation devices are connected to a battery module inside the tunnel segment through wires.

[0007] Furthermore, the vertical-axis power generation device includes two vertical-axis generator sets, rotor blades, and a rotor main shaft. The vertical-axis generator sets are arranged inside a set base, and the set base is installed on the annular base. The rotor blades are fixedly connected to the rotor main shaft. Both ends of the rotor main shaft pass through the set base and are connected to the vertical-axis generator sets respectively, and both ends of the rotor main shaft are rotatably connected inside the vertical-axis generator sets.

[0008] Furthermore, the vertical-axis generator set includes a first gearbox and an induction generator. The end of the rotor main shaft is connected to the input end of the first gearbox, and the output end of the first gearbox is connected to the induction generator. The rotation of the rotor blades drives the rotation of the rotor main shaft, and the rotor main shaft is transmitted to the induction generator through the first gearbox, prompting the induction generator to generate electricity and transmit it to the battery module.

[0009] Furthermore, at least one blade angle-of-attack limiter is configured on the rotor main shaft. The blade angle-of-attack limiter is arranged on the set base. The end of the rotor main shaft passes through the blade angle-of-attack limiter and is connected to the input end of the first gearbox inside the set base. The blade angle-of-attack limiter rotates the rotor main shaft to adjust the flow-attack angle of the rotor blades.

[0010] Furthermore, the blade angle-of-attack limiter includes a housing and a blade angle-of-attack adjusting device arranged inside the housing. The blade angle-of-attack adjusting device includes a sliding block, an annular electromagnetic chuck, and an angle motor. The angle motor is arranged at the rear end of the annular electromagnetic chuck. The end of the rotor main shaft sequentially passes through the housing, the sliding block, the annular electromagnetic chuck, and the angle motor and is connected to the first gearbox inside the set base. The rod portion of the rotor main shaft inside the housing has a plurality of limiting support shafts. The sliding block can move along the rotor main shaft between the limiting support shafts and the annular electromagnetic chuck. When the annular electromagnetic chuck is in the energized state, the sliding block is adsorbed on the annular electromagnetic chuck, and the angle motor drives the annular electromagnetic chuck to drive the sliding block to adjust the angle, thereby driving the rotor main shaft to rotate the angle so that the angle of the rotor blades is adjusted to the flow-attack angle. When the angle adjustment of the rotor blades is completed, the annular electromagnetic chuck is powered off, and the sliding block moves along the rotor main shaft to the limiting support shaft, and the limiting support shaft abuts against the top of the sliding block.

[0011] Further, the top of the sliding block is in a V-shaped opening, the bottom of the sliding block is a flat annular surface, and a limiting spring is arranged between the annular spring groove at the bottom of the sliding block and the rotor main shaft. After the angle of the rotor blade is adjusted, the sliding block is pushed and slid to the limiting support shaft through the limiting spring, the limiting support shaft abuts against the V-shaped opening, and the angle of attack of the rotor blade is fixed.

[0012] Further, the rotor main shaft is provided with a chute, and the inner cavity of the sliding block has a slider adapted to the chute. The slider is sleeved on the chute and moves along the chute.

[0013] Further, the cable anchor fixing device includes a limiting cable, an anchoring foundation, a pipe body arc-shaped cover plate and a cable self-locking anchor. The pipe body arc-shaped cover plate is semi-sleeved on the tunnel segment, the two ends of the pipe body arc-shaped cover plate have extension plates, the limiting cable is fixed on the extension plates through the cable self-locking anchor, and the bottom of the limiting cable is fixed on the seabed foundation through the anchoring foundation.

[0014] Advantages of the present invention: (1) By arranging a certain number of vertical axis generating sets around the tunnel pipe, the mechanical energy generated by the rotation of the rotor blades is converted into stable electric energy storage, and a stable voltage output is provided for the lighting, ventilation and other auxiliary facilities in the tunnel, so as to solve the dilemma of long-distance power consumption of the suspended tunnel according to local conditions.

[0015] (2) By arranging vertical axis generating sets, rotating blades and other devices on the tunnel pipe body, the carbon consumption and carbon emissions during the operation and maintenance of the underwater tension cable-pulled suspended tunnel can be reduced, meeting the concept of sustainable development of green and low-carbon at the present stage.

[0016] (3) By adjusting the angle of attack of the rotor blades through the blade angle of attack limiter, the effective conversion of the wave and current action around the tunnel pipe body is realized, and the impact of the wave and current field on the tunnel pipe body itself and the influence of eddy currents are reduced, thereby improving the stability of the entire tunnel pipe body underwater. Description of the drawings

[0017] Figure 1 is a schematic structural diagram of the first embodiment of the underwater suspended tunnel segment structure for vertical axis wave and current power generation; Figure 2 is Figure 1 the side view structural diagram of the tunnel segment in Figure 3 is Figure 1 the structural diagram at the vertical axis generating set in Figure 4 is Figure 1 the cross-sectional structural diagram of the tunnel segment in Figure 5 is Figure 1 the structural diagram of the blade angle of attack limiter in Figure 6 is Figure 1 a schematic structural view when the sliding block in the blade angle limiter is adsorbed by the annular electromagnetic chuck in Figure 7 a schematic side view of the second embodiment of the underwater suspension tunnel segment structure for vertical axis wave and current power generation; Figure 8 is Figure 7 a schematic structural view of the cross section of the tunnel segment in Figure 9 is Figure 7 a schematic structural view of the transmission component and the power generation component in

[0018] Marking description: tunnel segment 1, structural tunnel plate 11, support structural column 12, inner pipe segment 13, outer pipe segment 14, battery module 2, cable anchor fixing device 3, limit cable 31, anchoring foundation 32, pipe body arc cover 33, cable self-locking anchor 34, annular base 4, installation groove 41, annular rotating seal ring 42, installation groove hole 43, vertical axis power generation device 5, vertical axis generator set 51, rotor blade 52, rotor main shaft 53, unit seat 54, first gearbox 511, asynchronous generator 512, limit support shaft 531, sliding groove 532, support rod reset damper 533, blade angle limiter 6, housing 61, sliding block 62, annular electromagnetic chuck 63, angle motor 64, chuck seat 65, V-shaped opening 621, annular surface 622, annular spring groove 623, ocean wave power generation device 7, gear ring 71, blade assembly 72, power generation component 73, transmission component 74, tooth 711, blade 721, blade seat 722, transmission tooth 741, transmission shaft 742, generator 731, second gearbox 732. Specific embodiments

[0019] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following, in conjunction with the drawings and preferred embodiments, details the specific embodiments, structures, features and their effects of the present invention as follows.

[0020] Refer to Figures 1-6As described above, the first embodiment of the present invention provides an underwater suspended tunnel segment structure for vertical-axis wave and current power generation, including a tunnel segment 1. Inside the tunnel segment, there are structural tunnel plates 11, support structural columns 12, etc. Structural operation and maintenance auxiliary facilities such as lighting and ventilation equipment are installed in the tunnel. The equipment room is separated by the structural tunnel plate 11 in the structural cross-section for placing the battery module 2, and a stable power output is provided for the structural operation and maintenance auxiliary facilities through the connected power grid. The outer wall of the tunnel segment is fixed on the seabed through the cable anchor fixing device 3, and the cable anchor fixing device 3 includes a limit cable 31, an anchoring foundation 32, a pipe body arc-shaped cover plate 33, and a cable self-locking anchor 34. The pipe body arc-shaped cover plate 33 is semi-sleeved on the tunnel segment 1. The two ends of the pipe body arc-shaped cover plate 33 have extension plates. The limit cable 31 is fixed on the extension plates through the cable self-locking anchor 34. The bottom of the limit cable 31 is fixed on the seabed foundation through the anchoring foundation 32, so as to balance the buoyancy and the additional load during operation and maintenance received by the suspended tunnel.

[0021] On the outer wall of the tunnel segment 1, two annular bases 4 are symmetrically arranged, and the two annular bases are arranged in parallel corresponding to the front and rear sides of the floating tunnel segment. The annular base is formed by pouring high-strength dense waterproof concrete around the circumference of the tunnel segment. There is an installation groove 41 in the shape of a "concave" character at the annular base, and the "concave" character shape is used to strengthen the strength of the positioning base. A plurality of vertical-axis power generation devices 5 are installed between the two annular bases. The vertical-axis power generation device 5 is connected to the battery module 2 inside the tunnel segment through a wire and then through a transformer. Specifically, the vertical-axis power generation device 5 includes two vertical-axis generator sets 51, rotor blades 52 and a rotor main shaft 53. The vertical-axis generator set is arranged in the unit seat 54, and the unit seat 54 is installed in the "concave"-shaped installation groove 41 of the annular base. The rotor blade 52 is fixedly connected to the rotor main shaft 53. The two ends of the rotor main shaft 53 respectively pass through the unit seat 54 and are connected to the vertical-axis generator set 51, and the two ends of the rotor main shaft 53 are rotatably connected in the vertical-axis generator set 51. Among them, the rotor blade is made of high-strength composite carbon fiber material, which has a higher strength to withstand a large water flow load while reducing the structural weight. The vertical-axis generator set 51 includes a first gearbox 511 and an asynchronous generator 512. The end of the rotor main shaft 53 is connected to the input end of the first gearbox 511, and the output end of the first gearbox 511 is connected to the asynchronous generator 512. The rotation of the rotor blade 52 drives the rotor main shaft 53 to rotate around the axis. The rotation of the rotor main shaft 53 is transmitted to the asynchronous generator 512 through the first gearbox 511. Under the linkage of the first gearbox 511, the asynchronous generator 512 generates electricity and is transmitted to the battery module 2 through the power grid for electric energy storage. The underwater floating tunnel segment 1 is suspended at a certain depth underwater through the cable fixing device 3. Affected by factors such as sea waves and ocean currents in the water, a wave flow field with a certain flow velocity is formed around the structure. The underwater wave flow drives the rotor blade 52 to rotate, and the mechanical energy is converted into stable electric energy through the rotation of the rotor blade 52 and stored in the battery module 2. The battery module 2 provides a stable voltage output power supply for the lighting, ventilation and other auxiliary facilities in the tunnel, and solves the dilemma of long-distance power consumption of the floating tunnel according to local conditions. At the same time, the rotation of the rotor blade 52 reduces the impact of the wave flow field on the tunnel body itself and the influence of eddy currents, thereby improving the stability of the entire tunnel body underwater.

[0022] The rotor main shaft 53 is at least provided with a blade angle-of-attack limiter 6. The blade angle-of-attack limiter 6 is arranged on one side of the unit base 54. The end of the rotor main shaft 53 passes through the blade angle-of-attack limiter 6 and is connected to the input end of the first gearbox 511 in the unit base. The blade angle-of-attack limiter 6 drives the rotor main shaft to rotate so as to adjust the flow angle of the rotor blade 52, and the rotor blade 52 is adjusted to the maximum flow angle, so that the thrust received by the rotor blade 52 in the wave flow field is the largest. With the cooperation of the blade angle-of-attack limiter 6, the maximum thrust can be obtained according to the direction of the water flow, so as to make the most of the wave flow energy and realize the effective conversion of the wave flow action around the tunnel pipe body.

[0023] Specifically, the blade angle-of-attack limiter 6 includes a housing 61 and a blade angle adjustment device arranged in the housing. The blade angle adjustment device includes a sliding block 62, a ring-shaped electromagnetic chuck 63 and an angle motor 64. The ring-shaped electromagnetic chuck 63 is rotatably installed on the chuck seat 65, and the chuck seat 65 is fixedly installed in the housing. The angle motor 64 is arranged at the rear end of the ring-shaped electromagnetic chuck 63, and the angle motor 64 drives the ring-shaped electromagnetic chuck 63 to rotate at an angle. The end of the rotor main shaft 53 passes through the housing 61, the sliding block 62, the ring-shaped electromagnetic chuck 63 and the angle motor 64 in sequence and is connected to the first gearbox in the unit base. The rod part of the rotor main shaft 53 in the housing has a plurality of limit support shafts 531. The rotor main shaft 53 has a chute 532, and the chute 532 is located between the limit support shafts 531 and the ring-shaped electromagnetic chuck 63. The inner cavity of the sliding block 62 has a slider adapted to the chute 532, and the slider is sleeved on the chute 532 and moves along the chute 532, so that the sliding block 62 moves along the rotor main shaft 53 between the limit support shafts 531 and the ring-shaped electromagnetic chuck 63. The top of the sliding block 62 is a V-shaped opening 621, the bottom of the sliding block is a flat annular surface 622, and a limit spring 66 is arranged between the annular spring groove 623 at the bottom of the sliding block 62 and the rotor main shaft 53. When the ring-shaped electromagnetic chuck 63 is in the energized state, the sliding block 62 moves along the rotor main shaft 53 and adsorbs on the ring-shaped electromagnetic chuck 63. The angle motor 64 drives the ring-shaped electromagnetic chuck 63 to rotate, driving the sliding block 62 to adjust the angle, so as to drive the rotor main shaft to rotate at an angle, so that the rotor blade angle is adjusted to the flow angle. After the angle of the rotor blade 52 is adjusted, the ring-shaped electromagnetic chuck 63 is powered off, and the sliding block 62 is pushed and slid to the limit support shaft 531 by the limit spring 66. The limit support shaft 531 abuts against the V-shaped opening 621 at the top of the sliding block, and the support rod return damping 533 arranged between the limit support shaft 531 and the rotor main shaft 53 fixes the angle of attack of the rotor blade, so that the rotor blade can obtain the maximum thrust according to the direction of the water flow.

[0024] Refer to Figures 7-9As described above, the second embodiment of the present invention provides an underwater suspended tunnel segment structure for vertical-axis wave and current power generation, which is basically the same as the first embodiment, except that: the tunnel segment 1 includes an inner segment 13 and an outer segment 14, and the annular base 4 is arranged on the outer wall of the outer segment 14. A wave power generation device 7 is also installed on the annular base. The annular base 4 has an annular rotating seal ring 42, and there is an installation slot 43 in the middle of the annular rotating seal ring 42. The wave power generation device 7 includes a gear ring 71, a blade assembly 72 and a plurality of power generation components 73. The gear ring 71 is sleeved on the installation slot 43 of the annular rotating seal ring and can rotate along the annular rotating seal ring 42. The blade assembly 72 is arranged on the outer wall of the gear ring 71, and a plurality of power generation components 73 are evenly distributed and installed on the inner wall of the outer segment 14. The inner wall of the gear ring 71 has teeth 711, and a plurality of power generation components 73 are respectively matched with the teeth 711 on the gear ring through transmission components 74. When the ocean current drives the blade assembly 72 to rotate, it drives the gear ring 71 to rotate in a sealed manner along the annular rotating seal ring 42. The gear ring 71 drives the transmission component 74 to rotate and transmits it to the power generation component 73. The power generation component 73 generates electricity and transmits it to the battery module 2. By combining the wave power generation device 7 with the vertical-axis power generation device 5, the utilization rate of wave and current energy is increased, and the effective conversion of the wave and current action around the tunnel body is realized.

[0025] Specifically, the transmission component 74 includes a transmission gear 741 and a transmission shaft 742. The transmission gear 741 meshes with the teeth 711 of the gear ring. The power generation component 73 includes a generator 731 and a second gearbox 732. One end of the transmission shaft 742 is fixed at the center of the transmission gear 741, and the other end of the transmission shaft 742 extends to the input end of the second gearbox 732. The output end of the second gearbox 732 is connected to the generator 731. The blade assembly 72 is composed of a plurality of blade parts. The blade part includes a blade 721 and a blade seat 722. The blade 721 is installed on the blade seat 722, and a plurality of blade parts are evenly distributed and fixed on the outer end of the gear ring 71. When the blade assembly 72 is affected by the ocean current and rotates, it drives the gear ring 71 to rotate circumferentially and in a sealed manner. The rotation of the gear ring 71 causes the transmission gear 741 of the transmission component to rotate, thereby driving the transmission shaft 742 to rotate axially. The rotation of the transmission shaft 742 is transmitted to the second gearbox 732, and then transmitted to the generator 731 through the second gearbox 732 for power generation. The electric energy is transmitted to the battery module 2 inside the tunnel segment. The battery module 2 provides a stable voltage output power supply for the auxiliary facilities such as lighting and ventilation in the tunnel, and solves the dilemma of long-distance power consumption of the suspended tunnel according to local conditions.

[0026] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments of equivalent changes within the scope of the technical solution of the present invention by using the technical content disclosed above. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An underwater suspended tunnel pipe segment structure for vertical axis wave current power generation, comprising a tunnel pipe segment, characterized in that: The outer wall of the tunnel pipe segment is symmetrically provided with two annular bases, and a plurality of vertical axis power generation devices are installed between the annular bases. The outer wall of the tunnel pipe segment is fixed to the seabed by an anchor cable fixing device, and the vertical axis power generation device is connected to the battery module inside the tunnel pipe segment through a wire.

2. The underwater floating tunnel pipe segment structure for vertical axis wave current power generation according to claim 1 is characterized by: The vertical axis power generation device includes two vertical axis generator sets, rotor blades and a rotor main shaft. The vertical axis generator set is arranged in a unit base, and the unit base is installed on an annular base. The rotor blades are fixedly connected to the rotor main shaft. The two ends of the rotor main shaft pass through the unit base and are connected to the vertical axis generator set respectively. The two ends of the rotor main shaft are rotatably connected in the vertical axis generator set.

3. The underwater floating tunnel pipe segment structure for vertical axis wave current power generation according to claim 2 is characterized by: The vertical axis generator set includes a first gear transmission and an asynchronous generator. The end of the rotor main shaft is connected to the input end of the first gear transmission, and the output end of the first gear transmission is connected to the asynchronous generator. The rotation of the rotor blades drives the rotor main shaft to rotate, and the rotor main shaft is transmitted to the asynchronous generator through the first gear transmission, prompting the asynchronous generator to generate electricity and transmit it to the battery module.

4. The underwater floating tunnel pipe segment structure for vertical axis wave current power generation according to claim 2 or 3 is characterized by: The rotor main shaft is equipped with at least one blade angle of attack limiter, which is arranged on the unit seat. The end of the rotor main shaft passes through the blade angle of attack limiter and is connected to the input end of the first gear transmission box in the unit seat. The blade angle of attack limiter rotates the rotor main shaft to adjust the flow angle of the rotor blades.

5. The underwater floating tunnel pipe segment structure for vertical axis wave current power generation according to claim 4 is characterized by: The blade angle of attack limiter includes a shell and a blade angle of attack adjustment device arranged in the shell, the blade angle of attack adjustment device includes a sliding block, an annular electromagnetic suction cup and an angle motor, the angle motor is arranged at the rear end of the annular electromagnetic suction cup, the end of the rotor main shaft passes through the shell, the sliding block, the annular electromagnetic suction cup and the angle motor in sequence and is connected to the first gear transmission box in the unit seat, the rod portion of the rotor main shaft in the shell has a plurality of limit support shafts, the sliding block can move along the rotor main shaft between the limit support shaft and the annular electromagnetic suction cup, when the annular electromagnetic suction cup is powered on, the sliding block is adsorbed on the annular electromagnetic suction cup, the angle motor drives the annular electromagnetic suction cup to drive the sliding block to adjust the angle, thereby driving the rotor main shaft to rotate the angle, so that the rotor blade angle is adjusted to the incident flow angle, when the rotor blade angle adjustment is completed, the annular electromagnetic suction cup is powered off, the sliding block moves along the rotor main shaft to the limit support shaft, and the limit support shaft is against the top of the sliding block.

6. The underwater floating tunnel pipe segment structure for vertical axis wave current power generation according to claim 5 is characterized by: The top of the sliding block is a V-shaped opening, and the bottom of the sliding block is a flat annular surface. A limiting spring is arranged between the annular spring groove at the bottom of the sliding block and the rotor main shaft. When the rotor blade angle adjustment is completed, the sliding block is pushed to the limiting support shaft by the limiting spring, and the limiting support shaft is against the V-shaped opening, and the attack angle of the rotor blade is fixed.

7. The underwater floating tunnel pipe segment structure for vertical axis wave current power generation according to claim 6 is characterized by: The rotor main shaft is provided with a slide groove, and the inner cavity of the sliding block is provided with a sliding block adapted to the slide groove. The sliding block is sleeved on the slide groove and moves along the slide groove.

8. The underwater floating tunnel pipe segment structure for vertical axis wave current power generation according to claim 1 or 2 or 3 or 5 or 6 or 7 is characterized by: The anchor cable fixing device includes a limiting anchor cable, an anchor foundation, a tubular arc cover plate and an anchor cable self-locking anchor. The tubular arc cover plate is half-sheathed on the tunnel pipe section. Both ends of the tubular arc cover plate have extension plates. The limiting anchor cable is fixed to the extension plate by the anchor cable self-locking anchor. The bottom of the limiting anchor cable is fixed to the seabed foundation by the anchor foundation.

9. The underwater floating tunnel pipe segment structure for vertical axis wave current power generation according to claim 8 is characterized by: A wave power generation device is also installed on the annular base. The annular base has an annular rotating sealing ring. The wave power generation device includes a gear ring, a blade assembly and multiple power generation assemblies. The gear ring is sleeved on the annular rotating sealing ring and can rotate along the annular rotating sealing ring. The blade assembly is arranged on the outer wall of the gear ring. The inner wall of the gear ring has teeth. Multiple power generation assemblies are evenly distributed and installed on the inner wall of the pipe section. The multiple power generation assemblies are respectively matched with the teeth on the gear ring through the transmission assembly. When the ocean current pushes the blade assembly to rotate, the gear ring is driven to rotate along the annular rotating sealing ring. The gear ring drives the transmission assembly to rotate and transmits the electricity to the power generation assembly. The power generation assembly generates electricity and transmits it to the battery module.

10. The underwater floating tunnel pipe segment structure for vertical axis wave current power generation according to claim 9 is characterized by: The transmission assembly includes a transmission tooth and a transmission shaft, and the transmission tooth is meshed with the teeth of the gear ring. The power generation assembly includes a generator and a second gear transmission gearbox. One end of the transmission shaft is fixed at the center of the transmission tooth, and the other end of the transmission shaft extends to the input end of the second gear transmission gearbox. The output end of the second gear transmission gearbox is connected to the generator. The blade assembly rotates due to the influence of the ocean current, driving the gear ring to rotate, causing the transmission assembly to rotate, and then transmitting the electricity to the generator through the second gear transmission gearbox to generate electricity. The electrical energy is transmitted to the battery module inside the tunnel pipe section.

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