CN115822858A

CN115822858A - Vertical contact disconnect-type wave energy collection structure

Info

Publication number: CN115822858A
Application number: CN202211471736.8A
Authority: CN
Inventors: 徐敬; 王仁明; 宋广斌
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-03-21

Abstract

The invention relates to a vertical contact separation type wave energy collecting structure, which specifically comprises the following components: the upper end and the lower end of the cylinder are fixedly provided with a top cover and a bottom cover, the central holes of the top cover and the bottom cover are fixedly provided with a rotating shaft, and a linear bearing is arranged on the shaft; the linear bearing is fixedly connected with the buoyancy block, the buoyancy block and the sealing cover form a sealing cavity, the third friction layer and the fourth friction layer are fixedly bonded at the bottom of the sealing cavity, the mass ring, the upper plate, the first friction layer and the second friction layer are fixedly bonded at the upper end of the spring, and the lower end of the spring is fixedly mounted at the bottom of the sealing cavity. The advantages are that: the integral structure can be fixedly arranged on an offshore target such as a buoy, the cylinder structure not only converts irregular motion of sea waves into single-degree-of-freedom motion along the axial direction, but also has good self-protection capability, and the service life of the structure is prolonged.

Description

Vertical contact disconnect-type wave energy collection structure

Technical Field

The invention relates to a vertical contact separation type wave energy collecting structure according to the preamble of claim 1, and belongs to the technical field of wave energy collection.

Background

Energy is an important component of the rapid development of modern society. With the continuous development of human civilization, the limited fossil fuels on the earth become the main problems to be solved urgently in the current society due to the rapid exploitation of human beings, and the development and utilization of renewable energy and green energy become more and more important. Ocean is widely distributed in the world, and wave energy brought by the ocean is inexhaustible, so that the wave energy is a renewable energy source which is expected to be applied in large scale in the future. Through the development of decades, the traditional ocean power generation equipment adopting an electromagnetic structure still has limitations in the field of wave energy collection, and the characteristics of irregular motion and low frequency of waves seriously influence the popularization of the power generation equipment. In addition, the generally high equipment cost and installation and maintenance cost directly limit the application of the wave energy power generation equipment using electromagnetism as the power generation principle.

The nano friction generator is widely concerned by various industries due to the application advantages of the nano friction generator. The nanometer friction generator is a novel energy collection technology based on friction electrification and electrostatic induction, and is characterized in that low-frequency mechanical energy can be effectively utilized to generate electricity, a new idea is provided for ocean energy collection, and the nanometer friction generator is an indispensable important part in the field of future recyclable energy.

The nano friction generator has the characteristics of simple structure and low cost, so that the power generation device has good array property, low whole structure quality and simple installation and maintenance, has application in some self-energy supply fields, and provides more solutions in the fields of ocean engineering, machine manufacturing, rail transit, aerospace and the like in the future.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the vertical contact separation type wave energy collecting structure is low in price, simple in structure, stable, reliable, long in service life and easy to install.

In order to solve the technical problems, the invention adopts the technical scheme that:

a vertical contact disconnect-type wave energy acquisition structure specifically has: a top cover (1) and a bottom cover (6) are fixedly arranged at the upper end and the lower end of the cylinder (2), a rotating shaft (10) is fixedly arranged in the center holes of the top cover (1) and the bottom cover (6), and a linear bearing (7) is arranged on the shaft (10); the linear bearing (7) is fixedly connected with the buoyancy block (5), the buoyancy block (5) and the sealing cover (9) form a sealing cavity, the third friction layer (401) and the fourth friction layer (402) are fixedly bonded at the bottom of the sealing cavity, the mass ring (301), the upper plate (302), the first friction layer (303) and the second friction layer (304) are fixedly bonded at the upper end of the spring (8), and the lower end of the spring (8) is fixedly mounted at the bottom of the sealing cavity.

The invention has the advantages that: the integral structure can be fixedly arranged on an offshore target such as a buoy, the cylinder structure not only converts irregular motion of sea waves into single-degree-of-freedom motion along the axial direction, but also has good self-protection capability, and the service life of the structure is prolonged.

Drawings

FIG. 1 illustrates a cross section of a wave energy harvesting structure;

fig. 2 shows a front view of the top cover.

Reference numbers in the figures:

1 Top cover

2 cylinders

301 mass ring

302 upper plate

303 first friction layer

304 second friction layer

401 third friction layer

402 fourth friction layer

5 buoyancy block

6 bottom cover

7 linear bearing

8 spring

9 sealing cover

10 axle

Detailed Description

Fig. 1 shows a cross section of a wave energy collecting structure, which is a vertical contact separation type wave energy collecting structure according to the present embodiment, and specifically includes: the upper end and the lower end of the cylinder 2 are fixedly provided with a top cover 1 and a bottom cover 6, the central holes of the top cover 1 and the bottom cover 6 are fixedly provided with a fixed rotating shaft 10, and the shaft 10 is provided with a linear bearing 7; the linear bearing 7 is fixedly connected with the buoyancy block 5, the buoyancy block 5 and the sealing cover 9 form a sealing cavity, the third friction layer 401 and the fourth friction layer 402 are fixedly bonded at the bottom of the sealing cavity, the mass ring 301, the upper plate 302, the first friction layer 303 and the second friction layer 304 are fixedly bonded at the upper end of the spring 8, and the lower end of the spring 8 is fixedly mounted at the bottom of the sealing cavity.

Fig. 2 shows a front view of the top cover 1, and the top cover 1 is identical to the bottom cover 6 except for a circular hole with a mounting shaft 10 at the center and circular holes are designed around the top cover for seawater and air to freely enter and exit.

Wave energy collection structure will be fixed on floating platform or other surface of water platforms at the during operation, and partial structure immerses in the sea water, and buoyancy piece 5 can keep inside structure on the surface of water under the effect of sea water, and the fluctuation of sea wave can cause whole inner structure to fluctuate from top to bottom along the axle, and the surface of water is kept away from to this structure can be held in the palm the height of electricity generation structure.

The structure that the mass ring 301, the upper plate 302, the first friction layer 303 and the second friction layer 304 are fixedly bonded realizes periodic contact separation with the third friction layer 401 under the combined action of inertia and the spring 8, and electricity generation is realized by the coupling action of friction, which plays a role in electric and electrostatic induction.

Claims

1. The invention relates to a vertical contact separation type wave energy collecting structure, which specifically comprises the following components: a top cover (1) and a bottom cover (6) are fixedly arranged at the upper end and the lower end of the cylinder (2), a rotating shaft (10) is fixedly arranged in the center holes of the top cover (1) and the bottom cover (6), and a linear bearing (7) is arranged on the shaft (10); the linear bearing (7) is fixedly connected with the buoyancy block (5), the buoyancy block (5) and the sealing cover (9) form a sealing cavity, the third friction layer (401) and the fourth friction layer (402) are fixedly bonded at the bottom of the sealing cavity, the mass ring (301), the upper plate (302), the first friction layer (303) and the second friction layer (304) are fixedly bonded at the upper end of the spring (8), and the lower end of the spring (8) is fixedly mounted at the bottom of the sealing cavity, and the linear bearing is characterized in that the mass ring (301), the upper plate (302), the first friction layer (303) and the second friction layer (304) are fixedly bonded from top to bottom in sequence; a gap is formed between the structure formed by bonding the mass ring (301), the upper plate (302), the first friction layer (303), the second friction layer (304) and the spring (8) and the inner side of the sealing cover (9); the first friction layer (303) and the fourth friction layer (402) are made of copper; the second friction layer (304) and the third friction layer (401) are two dielectrics with different electron gaining and losing capacities, the second friction layer (304) is made of polytetrafluoroethylene, and the third friction layer (401) is made of polyterephthalic acid plastic.