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Replaceable prestressed anchor cable fan foundation for high-power wind power generating set

A technology of prestressed anchor cables and wind turbines, applied in the installation/support of wind turbine configuration, wind power generation, climate sustainability, etc., can solve the problems of prestressed system failure, uneven materials, high replacement costs, etc., to achieve Reasonable structural stress, simple and convenient construction, and low cost

Inactive Publication Date: 2016-11-16
POWERCHINA XIBEI ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the failure of the prestressed system due to the unevenness of the materials of the existing prestressed anchorage system, the original basic structure has the problem of high replacement cost or irreplaceable problem after the failure of the prestressed anchorage system

Method used

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  • Replaceable prestressed anchor cable fan foundation for high-power wind power generating set
  • Replaceable prestressed anchor cable fan foundation for high-power wind power generating set

Examples

Experimental program
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Effect test

Embodiment 1

[0022] In order to overcome the failure of the prestressed system due to the unevenness of the materials of the existing prestressed anchorage system, the original basic structure has the problem of high replacement cost or cannot be replaced after the failure of the prestressed anchorage system. The present invention provides as figure 1 , figure 2 Shown is a replaceable prestressed anchor cable fan foundation for high-power wind turbines. The invention is simple in operation, low in cost, safe and reliable, and can be quickly replaced when the prestressed system fails.

[0023] A replaceable prestressed anchor cable fan foundation for high-power wind turbines, including a fan tower 1 and a concrete hollow foundation 6, the middle of the concrete hollow foundation 6 is a through hole, and the bottom end of the concrete hollow foundation 6 is a ladder A table-shaped hole, the lower end of the fan tower 1 is fixed in the concrete hollow foundation 6, and the fan tower 1 is wi...

Embodiment 2

[0029] Based on the above embodiments, in this embodiment, the upper and lower ends of the prestressed anchor cable 5 are respectively connected to the bottom of the fan tower 1 and the slope of the terrace at the bottom of the concrete hollow foundation 6 through the prestressed anchor 4 .

[0030] A lower pressure bearing plate 3 is arranged on the contact surface between the prestressed anchor cable 5 and the slope of the step platform at the bottom of the concrete hollow foundation 6 .

[0031] An upper bearing plate 2 is provided on the contact surface between the prestressed anchor cable 5 and the upper surface of the concrete hollow foundation 6 .

[0032] The prestressed anchor cable 5 passes through the concrete hollow foundation 6, and the angle between the prestressed anchor cable 5 and the vertical direction is 2-20°. In this embodiment, the included angle is 5°. At such an angle, the prestressed anchor cable 5 is easy to pass through, and such a structure is easy...

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Abstract

The invention provides a replaceable prestressed anchor cable fan foundation for a high-power wind power generating set. The replaceable prestressed anchor cable fan foundation comprises a fan tower frame and a concrete hollow foundation, wherein a through hole is formed in the middle part of the concrete hollow foundation; a halfpace-shaped hole is formed in the lowest end of the concrete hollow foundation; the lower end of the fan tower frame is fixed in the concrete hollow foundation; the fan tower frame is wider than the halfpace-shaped hole formed in the lowest end of the concrete hollow foundation; and the lower end of the fan tower frame is connected with the halfpace inclined planes of the bottom of the concrete hollow foundation through a plurality of prestressed anchor cables. According to the replaceable prestressed anchor cable fan foundation, the concrete hollow foundation is connected with the tower frame by adopting the prestressed anchor cables, and the prestressed anchor cables can be changed under the condition that the prestressed anchor cables are in failure by adopting the concrete hollow foundation; and the foundation with the structural style is simple and convenient to construct and reasonable in structure stress, the failed prestressed anchor cables can be rapidly changed so as to solve the problem that a current adopted prestressed anchor bolt cannot be changed when in failure, and in addition, the cost is lower.

Description

technical field [0001] The invention belongs to the field of wind power generation engineering, and in particular relates to a replaceable prestressed anchor cable fan foundation for high-power wind turbines. Background technique [0002] The global energy shortage and the seriousness of environmental and climate problems have prompted countries to pay more and more attention to the development and utilization of renewable energy such as wind energy, solar energy, and biomass energy. Wind power research started early and the technology is mature. It has become an important way to utilize renewable energy. Especially in recent years, the installed capacity of wind power has grown rapidly. my country is rich in wind energy, among which the wind energy storage at a land height of 10m is 253 million kilowatts, which can be doubled at a height of 50m; at an offshore height of 10m, it is 750 million kilowatts, and at a height of 50m is about 1.5 billion kilowatts. As of the end o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D13/20
CPCY02E10/72Y02E10/728Y02P70/50
Inventor 田伟辉胡永柱李振作崔振磊
Owner POWERCHINA XIBEI ENG