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A kind of wind power generation high-elevation impeller accurate in-situ installation method

An installation method and technology with a large elevation angle, which are applied in the assembly of wind turbines, wind power generation, etc., can solve the problems of high risk of hoisting and installation of large and heavy objects at high altitude, unable to meet the requirements of impeller docking, installation difficulties, etc., and achieve effective on-site technology. The effect of decision-making, lowering the installation line of defense, and increasing the installation speed

Active Publication Date: 2021-05-07
GUANGDONG NO 2 HYDROPOWER ENGINEERING COMPANY LTD +3
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AI Technical Summary

Problems solved by technology

[0002] With the development of wind power technology, blade wind capture technology is changing with each passing day, and the structure of wind turbine tower and fuselage is increasingly optimized. Domestic wind turbine manufacturers have gradually developed semi-direct drive high-power wind turbines with large upper elevation angle; During the actual fan installation process, tools and tooling cannot meet the impeller docking requirements. The practice of the Shandong Zhanhua Wind Power Project has proved that using conventional docking technology, the impeller docking time lasts for about 5 hours. Risky installation
[0003] Therefore, with the current impeller butt joint installation method, there are technical problems such as difficult installation, long time consumption and high risk

Method used

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with specific examples.

[0023] This method is aimed at the rapid docking method between the main shaft and the impeller of the semi-direct drive high-angle fan, and meets the requirements of self-repair and self-maintenance during the installation and operation of wind power generation. The specific implementation process is as follows:

[0024] Step 1) Blade teaming and pitch change preparation: The three blades of the fan impeller are installed on the ground installation site into the hub of the fan impeller and the blade installation hole by using the main hoist and the auxiliary hoist. After installing a blade, use an auxiliary sling for traction to maintain the overall balance; install a 50kw generator set on the ground and the main fan as the power source for pitch change, and install a pitch module in the hub to ensure Test the pitch module and complete the pitch preparation;

[0025] Step 2)...

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Abstract

A method for accurate in-position installation of a large elevation angle impeller for wind power generation. The steps are as follows: install three blades on the hub; adjust the lower blade to the abandoned wind position through the pitch change operation according to the wind conditions and the parameters of the fan impeller, so that The force of the two upper blades is equal, and the balance is maintained without deflection; the fan impeller is hoisted to the docking position with the fan main unit by the sling; the second pitch is adjusted, and the angle of the upper two blades is finely adjusted to make the upper of the fan impeller The elevation angle is consistent with the upward elevation angle of the fan main unit; after docking and positioning, connect the fan impeller and the fan main unit together, and the installation is complete. The method can dynamically adjust the blade angle according to the instant wind speed so that the fan impeller does not deflect, and realizes the fast docking installation of the fan impeller and the fan host, and has the characteristics of simple steps, high efficiency and high safety.

Description

technical field [0001] The invention relates to the technical field of wind power generation equipment, in particular to a method for accurately installing an impeller with a large elevation angle for wind power generation. Background technique [0002] With the development of wind power technology, blade wind capture technology is changing with each passing day, and the structure of wind turbine tower and fuselage is increasingly optimized. Domestic wind turbine manufacturers have gradually developed semi-direct drive high-power wind turbines with large upper elevation angle; During the actual fan installation process, tools and tooling cannot meet the impeller docking requirements. The practice of the Shandong Zhanhua Wind Power Project has proved that using conventional docking technology, the impeller docking time lasts for about 5 hours. The installation is risky. [0003] Therefore, with the current impeller butt joint installation method, there are technical problems...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D13/10
CPCF03D13/10Y02E10/72
Inventor 张元海李沐林邬明材彭毅程牧春
Owner GUANGDONG NO 2 HYDROPOWER ENGINEERING COMPANY LTD
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