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Dual-impeller contra-rotating horizontal-axis wind turbine

A technology of horizontal axis and wind turbine, applied in the direction of wind engine, wind motor combination, wind engine control, etc., can solve the problems of cost increase, complex structure, etc., and achieve the effect of improving the efficiency of wind energy utilization

Active Publication Date: 2019-10-18
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some existing inventions, the double impeller horizontal axis wind turbine absorbs the remaining wind energy by adding a set of impellers and generators at the tail of the wind turbine, which not only complicates the structure but also increases the cost a lot

Method used

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  • Dual-impeller contra-rotating horizontal-axis wind turbine
  • Dual-impeller contra-rotating horizontal-axis wind turbine

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Embodiment Construction

[0011] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0012] refer to Figure 1 to Figure 2 , the double impeller counter-rotating horizontal axis wind turbine of the present invention includes a front impeller 1, a front impeller hub 2, a front impeller shaft 3, a generator installation box 4, a generator 5, a rear impeller shaft 6, and a rear impeller Wheel hub 7, rear impeller 8, speed sensor 9, front support seat 10, support bearing 11, nacelle 12, rear support seat 13, locker 14, output lead 15, electric brush 16 and conductive ring 17.

[0013] The housing of the generator 5 is installed on the inner wall of the generator installation box 4; the rear impeller 8 is fixedly connected with the shell of the generator installation box 4 through the rear impeller hub 7 and the rear impeller shaft 6, and the rear The impeller 8 rotates synchronously with the generator installation box 4; the generator in...

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Abstract

The invention provides a dual-impeller contra-rotating horizontal-axis wind turbine. The dual-impeller contra-rotating horizontal-axis wind turbine comprises a front impeller, a rear impeller, a cabin, a power generator mounting box, a supporting bearing, a power generator and a conductive ring, wherein the front impeller drives the rotary shaft of the power generator to rotate positively, and therear impeller drives the housing of the power generator to reversely rotate, so that relative rotation speed between a stator of the power generator and a rotor of the power generator is increased, and power generating power is improved. The dual-impeller contra-rotating horizontal-axis wind turbine provided by the invention utilizes residual air kinetic energy of the tail part of the horizontal-axis wind turbine to drive the housing of the power generator to reversely rotate, so that output power of the power generator is improved, and wind energy utilization efficiency is improved.

Description

technical field [0001] The invention relates to the field of wind power generation, and provides a horizontal axis wind turbine with two impellers rotating in opposite directions and driving a stator and a rotor of a generator to rotate in opposite directions. Background technique [0002] Horizontal axis wind turbines mostly adopt a single impeller structure. When the wind flows through the impeller and reaches the tail of the wind turbine, it still has a certain speed and kinetic energy, and the wind energy has not been fully utilized. The double-blade horizontal-axis wind turbines in some existing inventions absorb surplus wind energy by adding a set of impellers and generators at the tail of the wind turbine, which not only complicates the structure but also increases the cost a lot. Contents of the invention [0003] The present invention aims to solve the above-mentioned technical problems at least to a certain extent. For this reason, the present invention provides...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/02F03D9/25F03D7/04
CPCF03D1/02F03D7/028F03D9/25F05B2270/1033F05B2270/304Y02E10/72
Inventor 廖力达谭奇
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY