Method for lengthening wind power blade

A wind power blade and blade technology, which is applied in the field of lengthening wind power blades, can solve the problems of high cost and no economic benefits of technological upgrading.

Active Publication Date: 2012-07-04
苏州可汗极米科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, wind farms that have adopted a conservative strategy of choosing short blades will need to repurchase blades if they wish to ...

Method used

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  • Method for lengthening wind power blade
  • Method for lengthening wind power blade
  • Method for lengthening wind power blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Step 1: Preliminary treatment of the existing blades.

[0055] 1a. Place the existing blade 5 on the blade support frame 8;

[0056] 1b. Use a measuring tool such as a tape measure to measure the end position of the web 9 from the blade tip position;

[0057] 1c. Use a cutting tool such as an angle grinder to cut off the tip of the blade without the web at the end position of the web 9;

[0058] 1d. Measure a length of 0.01-2 meters from the above-mentioned truncation position, cut and / or polish off the shell (including the beam cap 10), and keep the web 9;

[0059] 1e. Clean up the dust at the tip of the blade 5 and store it for later use.

[0060] The second step: manufacturing accessories such as the blade tip shell and the web of the extension section.

[0061] 2a. Prepare two compatible blade tip shell female molds and a new set of blade tip web molds. After removing the debris on the mold surface, wipe the mold surface with mold cleaner and mold release agent; ...

Embodiment 2

[0077] Step 1: Preliminary treatment of the existing blades.

[0078] 1a. Place the existing blade 5 on the blade support frame 8;

[0079] 1b. Use a measuring tool such as a tape measure to measure the end position of the web 9 from the blade tip position;

[0080] 1c. Use a cutting tool such as an angle grinder to cut off the tip of the blade without the web at the end position of the web 9;

[0081] 1d. Cut and / or grind off a section of the shell (including the spar cap 10 ) from the above cut-off position, and keep the partially protruding web 12;

[0082] 1e. Clean up the dust at the tip of the blade 5 and store it for later use.

[0083] The second step: manufacturing accessories such as the blade tip shell and the web of the extension section.

[0084] 2a. Prepare two compatible blade tip shell female molds and a new set of blade tip web molds. After removing the debris on the mold surface, wipe the mold surface with mold cleaner and mold release agent;

[0085] 2b....

Embodiment 3

[0100] Step 1: Preliminary treatment of the existing blades.

[0101] 1a. Place the existing blade 5 on the blade support frame 8;

[0102] 1b. Using a tool such as a pneumatic grinder to roughen the surface of the tip of the existing blade that needs to be bonded;

[0103] 1c. Clean up the dust at the tip of the blade 5 and store it for later use.

[0104] The second step: manufacturing accessories such as the blade tip shell and the web of the extension section.

[0105] 2a. Prepare two compatible blade tip shell female molds and a new set of blade tip web molds. After removing the debris on the mold surface, wipe the mold surface with mold cleaner and mold release agent;

[0106] 2b. Paste the sealing tape on the edge of the mold flange;

[0107] 2c. Lay materials in the shell mold and web mold according to the layering sequence of each part;

[0108] 2d. Lay release cloth, diversion net and glue inlet pipeline on the surface of the laid product material at one time;

[...

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Abstract

The invention relates to a method for lengthening a wind power blade, in particular to a method for connecting a new tip to the tip of the wind wheel blade of the conventional wind driven generator. The invention comprises a blade tip lengthened connecting structure and a process scheme. According to the wind wheel blade tip lengthening scheme for the wind driven generator, the lengthened blade has a safe structure, and the method is simple in process, low in cost and high in implementation feasibility.

Description

technical field [0001] The invention belongs to the field of wind power generation, in particular to a method for lengthening wind power blades. Background technique [0002] The basic working principle of the wind turbine is to absorb energy from the wind through the wind wheel and convert the wind energy into rotational energy by using the principle of aerodynamics, and then convert the rotational energy into electrical energy through the generator. Among them, the wind rotor includes the hub and blades. The longer the blade length, the more wind energy can be absorbed, and the higher the power generation of the unit, but the load generated while absorbing more energy is also greater. [0003] In the early days when large-scale wind turbine technology entered China, due to the new technology and high risks, wind farm developers generally adopted a conservative strategy and chose blades with relatively short lengths. Although the power generation of short blades is small, ...

Claims

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Application Information

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IPC IPC(8): B29C65/54
Inventor 杜瑛卓张旺陈宏凯魏来
Owner 苏州可汗极米科技有限公司
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