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Nested tidal current generating set of air guide sleeve paddle-changing horizontal shaft

A generator set and shroud technology, applied in hydropower, reaction engines, tidal flow/damless hydropower, etc., can solve the problem of low comprehensive energy capture efficiency, and achieve improved energy capture efficiency, high efficiency, and stable power Effect

Inactive Publication Date: 2012-03-21
DALIAN UNIV OF TECH
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the problem of low comprehensive energy capture efficiency of horizontal-axis turbines for reciprocating tidal currents in the current development of marine renewable energy, and proposes a nested shroud pitch-variable horizontal-axis tidal current generator set

Method used

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  • Nested tidal current generating set of air guide sleeve paddle-changing horizontal shaft
  • Nested tidal current generating set of air guide sleeve paddle-changing horizontal shaft
  • Nested tidal current generating set of air guide sleeve paddle-changing horizontal shaft

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Embodiment Construction

[0020] As shown in the figure, the nested shroud variable pitch horizontal axis tidal current generating set of the present invention consists of an outer shroud 1, a shroud support 2, an inner shroud 3, a main shaft 4, a main shaft bearing 5, a hub 6, The blade 7, the pitch bearing 8, the pitch gear 9, the pitch rack 10, the pitch motor 11, the storage battery 12, the generator 13, the gear box 14, and the sealing ring 15 are composed.

[0021] (1) According to the reciprocating flow velocity in the sea area, the blade tip speed ratio, the hydraulic performance parameters of the airfoil, etc., calculate the variation law of the energy capture efficiency of the horizontal axis turbine with the tip speed ratio, and determine the optimal installation angle of the blade 7.

[0022] (2) Determine the working characteristics of the pitch motor according to the variation range of the tidal flow velocity and the reciprocating law;

[0023] (3) According to the power requirements of t...

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Abstract

The invention discloses a nested tidal current generating set of an air guide sleeve paddle-changing horizontal shaft, and belongs to the field of ocean regenerative energy development. The generating set is composed of an outer air guide sleeve, an air guide sleeve support, an inner air guide sleeve, a main shaft, a main shaft bearing, a hub, a blade, a paddle-changing bearing, a paddle-changinggear, a paddle-changing rack, a paddle-changing motor, a storage battery, a generator, a gear box and seal; and the outer air guide sleeve and the inner air guide sleeve form the nested air guide sleeve, the roof of the blade realizes the blade paddle-changing through the paddle-changing motor. The nested tidal current generating set provided by the invention has the advantages that the blade neighbouring tide flow velocity is greatly improved through the nested air guide sleeve, a paddle-changing mechanism causes a horizontal shaft to be adapted to reversing current, the efficiency is obvious high, thereby having self-starting ability at different flow rates; a complete machine structure is concise, the electrical energy output is stable, thereby having cleanness and no pollution.

Description

technical field [0001] The invention belongs to the field of marine renewable energy development, and relates to a nested wind deflector variable-pitch horizontal-axis tidal current generating set. Background technique [0002] Energy and the environment are major issues facing the sustainable development of mankind, and the development of clean and renewable energy is a consensus of all countries in the world. There are abundant ocean energy resources in the world. Among them, the tidal current energy has strong regularity, stable tidal current direction, and typical reciprocating characteristics. The development and application prospects are very broad. [0003] Power generation is the main form of tidal current energy utilization, and the core of tidal current power generation is the water turbine that absorbs the tidal current. The horizontal axis turbine has a large single unit power and is suitable for various tidal current flow rates. It is known as the "underwater w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03B13/26F03B3/18F03B3/14
CPCY02E10/28Y02E10/223Y02E10/20Y02E10/30
Inventor 宿晓辉赵广刘艳孙涛李明强郭嘉楠杨冉升张凯琳
Owner DALIAN UNIV OF TECH
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