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Built-in damper of tower drum of wind generating set and mounting method

A wind turbine, built-in technology, applied in the assembly of wind turbines, the configuration of installation/support of wind turbines, the control of wind turbines, etc., can solve problems such as difficulty in water injection, inability to meet construction requirements, and large size of dampers, Achieve the effect of eliminating installation difficulties, solving hoisting construction difficulties, and improving installation efficiency

Active Publication Date: 2021-09-07
ZHEJIANG WINDEY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In this type of prior art, the damper is generally placed on the outside above the tower, and the size of the damper is huge. Therefore, a large hoisting machine is required to hoist the tower, and then the damper is hoisted high into the air and fixed to the tower.
As for the design scheme in which the damper is built into the tower, it is impossible to send the damper into the tower with large hoisting equipment, so the damper must be installed on the ground before hoisting the tower
Existing technologies cannot meet such construction needs
At the same time, the height of the wind power tower is considerable, and it is quite difficult to inject water into the damper located at a high place

Method used

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  • Built-in damper of tower drum of wind generating set and mounting method
  • Built-in damper of tower drum of wind generating set and mounting method
  • Built-in damper of tower drum of wind generating set and mounting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1The illustrated embodiment is a built-in damper for a tower of a wind power generating set. The tuned liquid damper includes three damping components independent of each other, which are stacked in the axial direction of the tower tube 4 . Each damping assembly includes a box body 1 and a water bladder 2 .

[0043] The top view shape of the box body 1 is a circular ring, and the cross-sectional shape is a U shape with a straight bottom and an upward opening. In this example, it is composed of 4 such as Figure 4 The sector-shaped U-shaped slots 11 shown are spliced ​​and installed end to end. The U-shaped groove 11 is fixed with the cylindrical body 4 through the fixing seat 3 . Specifically, the outer end of the fixing seat 3 is fixed on the inner wall of the cylinder body 4 , the fixing seat body protrudes radially inward to form a cantilever, and the inner end has a radial limiter. see figure 2 , There are 8 fixed seats 3 in total, and the U-sha...

Embodiment 2

[0048] Implementation 2 is another built-in damper for the wind turbine tower. see Figure 4 and Figure 6 , The bottom of the box body 1 in this example is provided with upwardly protruding damping ribs 113 . The length direction of the damping rib 113 is a direction transverse to the ring of the box body 1, and the cross-sectional shape of the damping rib 113 is a shape gradually converging from the bottom to the top, in this example, a triangle with an apex at the top. A partition 21 is also fixedly installed inside the water bag 2 , and the partition 21 is located directly above each damping rib 113 in one-to-one correspondence. The upper, left and right sides of the partition 21 are all closed and connected to the inner wall of the water bag 2 , and a gap is provided between the lower side and the top of the damping rib 113 .

[0049] When the water bag 2 is filled with tuning liquid 22 and air 23 and is in a filling state, the page height of the tuning liquid 22 is h1...

Embodiment 3

[0052] Embodiment 3 is an installation method of a built-in damper of a wind power generating set tower, which is used to install the built-in damper of a wind generating set tower shown in Embodiment 1. The specific steps are as follows:

[0053] 1. Install the fixing seat 3 on the inner wall of the upper part of the tower tube 4;

[0054] 2. Connect several U-shaped grooves 11 with the fixing seat 3, and splice them end to end to form a box body 1;

[0055] 3. Close the water outlet valve 214 of the water bag 2, and put it into the water outlet 114 of the box body 1, and lay the remaining unexpanded parts of the water bag 2 in the box body 1;

[0056] 4. If the tower tube 4 has been hoisted and is in a vertical state, inject a certain amount of tuning liquid 22 from the water inlet valve 213 of the water bag 2 with a water pump; if the tower tube 4 is in a horizontal state, first temporarily seal the lower part with the side baffle plate 5 The end face of the box body 1, an...

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Abstract

The invention discloses a built-in damper for a tower drum of a wind generating set. The built-in damper comprises damping components. Each damping component comprises a box body, water bags and fixing seats. Each box body is in a circular ring shape when overlooked, and the cross section of each box body in a U shape with an upward opening. The water bags are an annular sealing bodies and are made of thin and soft materials, the water bags are tightly attached to the inner side walls of the box bodies in a full state, and the water bags are filled with tuning liquid and air. The fixing seats are used for fixing the box bodies in the tower drum. On the basis, the invention discloses a mounting method of the built-in damper of the tower drum of the wind generating set. The built-in damper of the tower drum of the wind generating set and the mounting method have the beneficial effects that the damper structure which can be mounted on the ground is adopted, so that the mounting difficulty is eliminated, and the mounting efficiency is improved.

Description

technical field [0001] The invention relates to the field of wind power generating equipment, in particular to a built-in damper for a tower of a wind power generating set and an installation method thereof. Background technique [0002] In the early hours of May 6, 2020, the Guangdong Provincial Communications Group reported that the expert group judged that the vibration-related bridge vortex vibration phenomenon occurred the day before the Humen Bridge, and believed that the structure of the suspension bridge was safe and reliable, and would not affect the structural safety and security of the subsequent use of the Humen Bridge. durability. On June 18 of the same year, vortex-induced vibrations also occurred on the Zhejiang Zhoushan Sea-Crossing Bridge, which led to temporary two-way closure of the bridge. [0003] With the development of wind power technology, the scheme of high tower and large wind rotor can significantly reduce the cost of electricity and improve the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D13/20F03D80/00F03D13/10F03D7/02
CPCF03D13/20F03D13/10F03D7/0296F03D80/00Y02E10/728
Inventor 李学平罗勇水沈凤亚赵海燕艾真伟
Owner ZHEJIANG WINDEY