Multiple-cavity hydraulic cylinder for wave energy broadband acquisition

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...

AI Technical Summary

Problems solved by technology

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

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