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CN-122009391-A - Self-generating ocean buoy based on vortex-induced vibration and power generation method

CN122009391ACN 122009391 ACN122009391 ACN 122009391ACN-122009391-A

Abstract

The invention provides a self-generating offshore buoy based on vortex-induced vibration and a power generation method, and belongs to the technical field of buoy power generation. The buoy comprises a buoy body, a rotating pipe and a buffer mechanism, wherein a tail pipe is arranged on the lower side face of the buoy body, a balancing weight is arranged at the lower end of the tail pipe, the balancing weight is connected with a fixed anchor through a steel rope, the rotating pipe is rotatably arranged on the tail pipe, two rotating plates are hinged to the rotating pipe, vibrators are slidably arranged on the opposite sides of the two rotating plates, a nano friction power generation assembly is connected to the vibrators, the nano friction power generation assembly can generate power by horizontally sliding the vibrators, the buffer mechanism is arranged between the two rotating plates, and the buffer mechanism plays a role in buffering the rotation of the two rotating plates. The invention can generate electricity by utilizing vortex-induced vibration generated by ocean currents around the tail pipe, improves the cruising ability of the buoy, and reduces the impact of the ocean currents on the tail pipe.

Inventors

  • XU PENG
  • SONG XUANXUAN
  • GONG XIWU
  • LU CHENG
  • LI HE
  • QIU ZEHAO
  • LIU YUFAN

Assignees

  • 浙江海洋大学

Dates

Publication Date
20260512
Application Date
20260115

Claims (10)

  1. 1. The self-generating type marine buoy based on vortex-induced vibration is characterized by comprising a buoy body (1), wherein a tail pipe (11) is arranged on the lower side surface of the buoy body (1), a balancing weight (12) is arranged at the lower end of the tail pipe (11), and the balancing weight (12) is connected with a fixed anchor (14) through a steel cable (13); the rotary pipe (2) is rotatably arranged on the tail pipe (11), and two rotary plates (3) are hinged on the rotary pipe (2); The two vibrators (2) are respectively arranged on the opposite sides of the two rotating plates (3) in a sliding mode, and the sliding direction of the vibrators (4) is perpendicular to the length direction of the rotating tube (2); The nanometer friction power generation assembly is connected with the vibrator (4) and can generate power by utilizing horizontal sliding of the vibrator (4); The buffer mechanism is arranged between the two rotating plates (3), and plays a role in buffering the rotation of the two rotating plates (3).
  2. 2. The vortex-induced vibration based self-generating maritime buoy of claim 1, wherein the buffer mechanism comprises: The fixed block (6), fixed block (6) is fixed on the pivoted tube (2) horizontally, be equipped with on fixed block (6) along length direction slotted hole (61), be equipped with second slide bar (63) in slotted hole (61), slide on second slide bar (63) and be provided with slider (62), all overlap on second slide bar (63) that are located slider (62) both sides and be equipped with second reset spring (64), vertical rotation is provided with articulated shaft (341) on slider (62); The two connecting plates (34), the two connecting plates (34) are in one-to-one correspondence with the two rotating plates (3), one ends of the two connecting plates (34) are rotationally connected together through a hinge shaft (341), and the other ends of the connecting plates (34) are hinged to the corresponding rotating plates (3).
  3. 3. The vortex-induced vibration based self-generating maritime buoy of claim 1, wherein the nano-friction power generation assembly comprises: The power generation box (5), the power generation box (5) is arranged on the rotating plate (3), and two aluminum electrodes (52) are arranged in the power generation box (5) at intervals; A substrate (51), wherein the substrate (51) is slidably arranged in the power generation box (5), and a perfluoroethylene propylene film is laid on one side of the substrate (51) close to the aluminum electrode (52); The connecting rod (42) is arranged on the power generation box (5) in a sliding mode, one end of the connecting rod (42) is fixedly connected with the base plate (51), and the other end of the connecting rod is fixedly connected with the vibrator (4).
  4. 4. Self-generating maritime buoy based on vortex-induced vibration according to claim 1, characterized in that two first slide bars (32) are arranged on the rotating plate (3) in parallel, a sleeve (41) is arranged on the first slide bars (32) in a sliding manner, and the vibrator (4) is fixedly connected with the two sleeves (41).
  5. 5. Self-generating maritime buoy based on vortex-induced vibration according to claim 1, characterized in that the first slide bars (32) on both sides of the sleeve (41) are each sleeved with a first return spring (33).
  6. 6. The self-generating maritime buoy based on vortex-induced vibration according to claim 1, wherein a mounting plate (73) is arranged on the lower side surface of the fixed block (6), a second generator (7) is arranged on the mounting plate (73), a linkage structure is arranged on an output shaft of the second generator (7), and the linkage structure can drive the output shaft of the second generator (7) to continuously rotate in a unidirectional manner by utilizing sliding of the sliding block (62).
  7. 7. The vortex-induced vibration based self-generating maritime buoy of claim 6, wherein the linkage structure comprises: The guide block (65), the guide block (65) is fixedly arranged on the lower side surface of the sliding block (62), the length direction of the guide block (65) is perpendicular to the length direction of the sliding groove hole (61), and a guide groove (66) is formed in the lower side surface of the guide block (65) along the length direction; A horizontal plate (71), the horizontal plate (71) being horizontally fixed to the output shaft of the second generator (7); the lower end of the vertical rod (72) is fixed at one side, far away from the output shaft, of the horizontal plate (71), and the upper end of the vertical rod (72) extends into the guide groove (66).
  8. 8. Self-generating maritime buoy based on vortex-induced vibration according to claim 1, characterized in that the angle between the two turning plates (3) is acute.
  9. 9. The self-generating maritime buoy based on vortex-induced vibration according to claim 1, wherein a gear ring (21) is arranged on the outer side of the rotating tube (2), a first generator (121) is arranged on the upper side surface of the balancing weight (12), a first gear (122) is arranged on an input shaft of the first generator (121), and the first gear (122) is in meshed connection with the gear ring (21).
  10. 10. A method for generating electricity for a vortex induced vibration based self-generating offshore buoy according to any one of claims 1-9, comprising the steps of: s1, when ocean currents impact two rotating plates (3) in one direction, the rotating tube (2) is driven to rotate, so that an acute angle formed by the two rotating plates (3) is kept consistent with the ocean current direction; S2, when ocean currents flow through the rotating plate (3), the vibrator (4) is impacted to generate vortex-induced vibration, so that the vibrator periodically slides along the direction parallel to the rotating plate (3), and the nano friction power generation assembly is driven to work and output electric energy; S3, when the ocean current velocity is increased to a preset threshold value, ocean current pressure drives the two rotating plates (3) to rotate oppositely, and the opposite rotation of the rotating plates (3) is converted into unidirectional rotation motion of an output shaft of the second generator (7) through transmission in the buffer mechanism, so that the second generator (7) is driven to generate electricity; And S4, when the ocean current direction is changed, the two rotating plates (3) are subjected to the side thrust of the ocean current to enable the rotating tube (2) to rotate, and the gear ring on the rotating tube (2) drives the first machine gear (122) and the input shaft of the first generator (121) to rotate so as to generate electricity.

Description

Self-generating ocean buoy based on vortex-induced vibration and power generation method Technical Field The invention belongs to the technical field of buoy power generation, and relates to a self-generating offshore buoy based on vortex-induced vibration and a power generation method. Background Ocean buoys are a type of navigation mark that floats on the water surface. Is fixed at the bottom of the water through an anchor chain. Buoys are widely used and function to mark the extent of a channel, indicating a shoal or obstacle endangering navigation. The automatic ocean observation station is used as an unmanned automatic ocean observation station, is fixed in a designated sea area, and can continuously and automatically work under severe ocean environment conditions. The device which needs to be powered on the domestic marine buoy is generally an indicator light, a satellite positioning device and a monitoring device, the current marine buoy is usually powered by a storage battery due to the limitation of the sea, the power consumption is increased continuously along with the diversification of equipment installed on the buoy, the battery is replaced frequently only by means of the power supply of the storage battery, the supply cost is high, the supply is difficult and the like, and in addition, the buoy swings along with the fluctuation of sea water, the stability is poor, and the buoy is easy to topple. Disclosure of Invention The invention aims at solving the problems in the prior art, and provides a self-generating offshore buoy based on vortex-induced vibration, the invention can generate electricity by utilizing vortex-induced vibration generated by ocean currents around the tail pipe, improves the cruising ability of the buoy, and reduces the impact of the ocean currents on the tail pipe. The aim of the invention can be achieved by the following technical scheme: From power generation maritime buoy based on vortex-induced vibration includes buoy body, rotation pipe and buffer gear, the downside of buoy body is equipped with the tail pipe, the lower extreme of tail pipe is equipped with the balancing weight, the balancing weight is connected with the anchor through the cable, the rotation pipe rotates and sets up on the tail pipe, it has two rotation boards to articulate on the rotation pipe, two the equal slip in opposite sides of rotation board is provided with the oscillator, the slip direction of oscillator is mutually perpendicular with the length direction of rotation pipe, be connected with the nanometer friction power generation assembly that can utilize oscillator horizontal slip to generate electricity on the oscillator, buffer gear sets up between two rotation boards, buffer gear plays the cushioning effect to the rotation of two rotation boards. Preferably, the buffer gear includes fixed block and two connecting plates, the fixed block level sets firmly on the rotation pipe, be equipped with the slide groove hole along length direction on the fixed block, be equipped with the second slide bar in the slide groove hole, the slip is provided with the slider on the second slide bar, all overlaps on the second slide bar that is located the slider both sides and is equipped with second reset spring, vertical rotation is provided with the articulated shaft on the slider, and the one end of two connecting plates is in the same place through the articulated shaft rotation, the other end of connecting plate articulates on corresponding rotation board. Preferably, the nano friction power generation assembly comprises a power generation box and a base plate, wherein the power generation box is arranged on a rotating plate, two aluminum electrodes are arranged in the power generation box at intervals, the base plate is arranged in the power generation box in a sliding mode, a perfluoroethylene propylene film is laid on one side, close to the aluminum electrodes, of the base plate, a connecting rod is arranged on the power generation box in a sliding mode, one end of the connecting rod is fixedly connected with the base plate, and the other end of the connecting rod is fixedly connected with the vibrator. Preferably, two first sliding rods are arranged on the rotating plate in parallel, a sleeve is arranged on the first sliding rods in a sliding mode, the vibrator is fixedly connected with the two sleeves, and the sliding range of the vibrator is limited through the sleeves. Preferably, first return springs are sleeved on the first sliding rods positioned on two sides of the sleeve, so that the vibration frequency of the vibrator is improved. Preferably, the mounting plate is arranged on the lower side face of the fixed block, the second generator is arranged on the mounting plate, the linkage structure is arranged on the output shaft of the second generator, and the linkage structure can drive the output shaft of the second generator to continuously rotate unidirectionally by utilizing the sliding