Multiple-cavity hydraulic cylinder for wave energy broadband acquisition

A wave energy and hydraulic cylinder technology, applied in the field of tidal energy power generation, can solve problems such as narrow frequency band and inability to meet practical application needs, and achieve the effects of improving efficiency, saving economic and labor costs, and widening market value

Pending Publication Date: 2019-09-24
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional vibration energy harvesters have a narrow frequency band, which cannot meet the needs of practical applications

Method used

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  • Multiple-cavity hydraulic cylinder for wave energy broadband acquisition
  • Multiple-cavity hydraulic cylinder for wave energy broadband acquisition
  • Multiple-cavity hydraulic cylinder for wave energy broadband acquisition

Examples

Experimental program
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Embodiment Construction

[0021] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0022] like Figure 1-2 As shown, a multi-cavity hydraulic cylinder for wave energy broadband collection, it includes a cylinder 7, the cylinder 7 adopts a two-stage cylinder structure, and the inside of the cylinder 7 is provided with a segmented first A piston rod 2 and a second piston rod 32, the inside of the cylinder where the first piston rod 2 is located is provided with a first piston 9, and the inside of the cylinder where the second piston rod 32 is located is provided with a second piston 14, so The diameter of the first piston rod 2 is greater than the diameter of the second piston rod 32; the diameter of the cylinder section where the first piston 9 is located is greater than the diameter of the cylinder section where the second piston 14 is located; the two ends of the steel cylinder 7 are set There is a cylinder end sealing structure.

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Abstract

The invention discloses a multiple-cavity hydraulic cylinder for wave energy broadband acquisition. The cylinder is divided into four cavities, and structurally comprises a cylinder barrel, an end cover, a cylinder cover and connecting lug rings, wherein the cylinder cover, and the end cover and the lug rings are positioned at two ends of the cylinder barrel; through sealing connection, a piston rod is arranged in the cylinder cover and the cylinder barrel in a sliding penetrating mode, and the piston rod is divided into two sections, namely, a first piston rod and a second piston rod; the four cavities of the cylinder barrel are connected in series, two end walls of the cylinder barrel are provided with four oil ports in total, and the four oil ports are used as oil inlets and oil outlets; and buffering pads are correspondingly and fixedly arranged at the bottom ends of two pistons in the cylinder barrel, so that the impact force of the piston colliding the cylinder bottom can be effectively buffered. According to the multiple-cavity hydraulic cylinder for the wave energy broadband acquisition, the structure is simple, the cost is low, the design is scientific and reasonable, and achieves the purpose of being applied to the renewable wave energy broadband acquisition under the condition of random change of the marine environment.

Description

technical field [0001] The invention relates to the technical field of tidal current energy generation, in particular to a multi-cavity hydraulic cylinder for broadband wave energy collection. Background technique [0002] Due to changes in ocean conditions, most of the vibrations in the ocean environment are not vibrations of a single frequency, and their frequency components are distributed in a wider frequency band. In order to more fully collect the vibration energy in the environment, the energy harvester is required to have broadband vibration collection performance. Traditional vibration energy harvesters have a narrow frequency band, which cannot meet the needs of practical applications. Therefore, based on the discrete working principle of the multi-cavity oil cylinder for random wave energy collection adapted to the working sea conditions, after the broadband acquisition is realized through the multi-cavity oil cylinder, the system converts the random reciprocatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/17F15B15/22F16J9/00F16J15/16F16J10/02F16J1/09F16J7/00F03B13/26
CPCF03B13/26F15B15/1438F15B15/1442F15B15/1447F15B15/1452F15B15/1457F15B15/1461F15B15/149F15B15/17F15B15/226Y02E10/30
Inventor 方子帆谢哲雨覃琳刘进谢志恒洪俊鹏
Owner CHINA THREE GORGES UNIV
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