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Vortex-induced vibration and lift force hybrid type flow power generating device

A technology of hybrid power and vortex-induced vibration, which is applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve the problem of vortex-induced force drop, etc., and achieve the effects of low starting flow rate, stable operation, and wide flow rate range

Inactive Publication Date: 2015-03-11
三亚哈尔滨工程大学南海创新发展基地
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Problems solved by technology

However, when the Reynolds number is too large, the vortex induced force will be greatly reduced due to leaving the self-locking zone

Method used

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  • Vortex-induced vibration and lift force hybrid type flow power generating device
  • Vortex-induced vibration and lift force hybrid type flow power generating device
  • Vortex-induced vibration and lift force hybrid type flow power generating device

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Embodiment Construction

[0024] The vortex-induced vibration and lift hybrid water flow power generation device of the present invention includes a vibration system located in the incoming flow, a synchronous belt system that transmits the motion energy of the vibration system to the water surface, and converts reciprocating vibration into vibration-rotation conversion of one-way rotation system, power generation system and the supporting structure of the entire installation.

[0025] The vibration system is located underwater, including a group of vibrating bodies (two or more) whose axis is perpendicular to the direction of the incoming flow, the rocker arms at both ends of the vibrating body used to constrain the vibrating body, the rocker shaft and the vibration reduction when the rocker arm swings Water-lubricated bearing system for frictional resistance. Foam floating blocks are symmetrically arranged inside the vibrating body to control the floating state of the vibrating system in still water....

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Abstract

The invention provides a vortex-induced vibration and lift force hybrid type flow power generating device which comprises a vibration system in incoming flow, a synchronous belt system, a vibration-rotating transition system, a power generation system and a support structure, wherein the synchronous belt system transmits motion energy of a vibration system to a water level, the vibration-rotating transition system translates reciprocating vibration to single-direction vibration. The vibration system is composed of a vibration body and a rocker arm, and an axis of the vibration body and the rocker arm is perpendicular to the incoming flow direction. The synchronous belt system is composed of a large synchronous belt wheel, two small synchronous belt wheels and a synchronous belt, the large synchronous belt wheel is coaxial to a rotary shaft of the rocker arm and conducts reciprocating motion with the rocker arm, and the two small synchronous belt wheels and the synchronous belt are arranged on a water power generation platform. The mode that a single-direction clutch and a gearbox are combined is adopted, reciprocating vibration is translated into the single-direction rotation, and then the single rotation which is opposite in rotation direction is combined to be a single-direction rotation. The vortex-induced vibration and lift force hybrid type flow power generating device has the advantages of being low in starting flow velocity, wide in applicable flow velocity interval region, large in amplitude of swing, and the like. Meanwhile, the vortex-induced vibration and lift force hybrid type flow power generating device is applied to working in water flow of various flow velocities.

Description

technical field [0001] The invention relates to a hydroelectric power generation device, in particular to a device for generating electricity by utilizing water current energy. Background technique [0002] The energy consumption in today's world is increasing day by day, and the non-renewable mineral energy is becoming increasingly exhausted. People's demand for renewable energy is increasing day by day. Research on the development and utilization of renewable energy such as water flow energy, wind energy, and solar energy is becoming more and more extensive. The existing water flow energy acquisition devices are mainly water turbines, but the existing water turbines have a high start-up flow rate, and can only operate relatively stably in a flow field with a flow rate above 1m / s, and the flow rate of many rivers is difficult to meet the working requirements of the water turbine. Vortex-induced vibration is a hydrodynamic phenomenon, which is caused by the reciprocating mot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03B13/00
Inventor 马良李凤来李鹏马勇任选其黄德太诸葛凌波葛海超何新李旭晖
Owner 三亚哈尔滨工程大学南海创新发展基地
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