CN109139385B - Connecting equipment for tower and foundation of wind generating set - Google Patents

Connecting equipment for tower and foundation of wind generating set Download PDF

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Publication number
CN109139385B
CN109139385B CN201811008373.8A CN201811008373A CN109139385B CN 109139385 B CN109139385 B CN 109139385B CN 201811008373 A CN201811008373 A CN 201811008373A CN 109139385 B CN109139385 B CN 109139385B
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China
Prior art keywords
ring
thick bamboo
foundation
generating set
tower
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Application number
CN201811008373.8A
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Chinese (zh)
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CN109139385A (en
Inventor
付秋云
张家志
胡益民
朱峰
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XEMC Windpower Co Ltd
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XEMC Windpower Co Ltd
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Priority to CN201811008373.8A priority Critical patent/CN109139385B/en
Publication of CN109139385A publication Critical patent/CN109139385A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F03D13/22—Foundations specially adapted for wind motors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/728—Onshore wind turbines

Abstract

The invention relates to a connecting device of a wind generating set tower cylinder and a foundation, which comprises an upper connecting flange, a ring cylinder structure, a reinforcing rib and a lower connecting flange, wherein the ring cylinder structure is arranged between the upper connecting flange and the lower connecting flange, the ring cylinder structure is positioned at the center of the cylinder wall of the wind generating set tower cylinder, the ring cylinder structure comprises more than two concentric rings, the adjacent rings form a ring cylinder cavity, grouting materials are poured into the ring cylinder cavity, the reinforcing rib is arranged in the horizontal direction outside the ring cylinder structure, and the lower part of the ring cylinder structure and the lower connecting flange are embedded in the foundation. Because the annular cylinder structure filled with the grouting material is arranged between the tower cylinder of the wind generating set and the foundation, the overall strength of the cylinder wall is enhanced, and the reinforcing ribs are arranged in the horizontal direction of the annular cylinder structure, so that the connection with peripheral concrete is greatly enhanced, the fatigue damage of the peripheral concrete is reduced, and the foundation is firm and reliable.

Description

Connecting equipment for tower and foundation of wind generating set
Technical Field
The invention belongs to the technical field of wind turbine foundations, and particularly relates to a connecting device for a tower drum and a foundation of a wind turbine generator system.
Background
Wind energy has been developed in recent years in a sudden and drastic manner in China as a green energy source. At present, the domestic wind generating set foundation mostly adopts a gravity foundation ring type foundation. A gravity type foundation ring type foundation belongs to a traditional foundation. The technology is introduced in Europe and America and is firstly used for the foundation of the small megawatt fan in China. However, with the increasing capacity of a single fan and the increasing load of the fan, the problem of the gravity-based ring-type foundation is also gradually highlighted. The phenomenon that the foundation is generally provided with a break-away crack between the foundation ring and concrete and a cavity formed by crushing the concrete around the flange under the foundation ring due to long-term abrasion exists, and the upper fan shakes more and more during operation along with the increase of the cavity, so that the normal and safe operation of the fan foundation is seriously affected.
Disclosure of Invention
The invention aims to overcome the defects and provide firm and reliable connecting equipment for the tower and the foundation of the wind generating set.
The technical scheme includes that the connecting equipment for the tower barrel and the foundation of the wind generating set comprises an upper connecting flange, a ring barrel structure, reinforcing ribs and a lower connecting flange, wherein the upper connecting flange is fixedly connected with the tower barrel of the wind generating set, the ring barrel structure is arranged between the upper connecting flange and the lower connecting flange and is positioned in the center of the wall of the tower barrel of the wind generating set, the ring barrel structure comprises more than two concentric rings, adjacent rings form a ring barrel cavity, grouting holes are formed in the upper connecting flange matched with the center of the ring barrel cavity, grouting materials are poured into the ring barrel cavity, the reinforcing ribs are arranged in the horizontal direction outside the ring barrel structure, and the lower part of the ring barrel structure and the lower connecting flange are embedded in the foundation.
Preferably, the reinforcing rib is a screw rod, and the screw rod horizontally penetrates through the ring cylinder structure and is fixed with the ring cylinder structure through a nut.
Preferably, the number of the circular rings is two, and the number of the ring cylinder cavities is 1.
Preferably, the number of the circular rings is three, and the number of the ring cylinder cavities is 2.
The invention has the beneficial technical effects that as the annular cylinder structure is arranged between the tower cylinder of the wind generating set and the foundation, compared with the lower flange of the foundation ring of the original gravity type foundation, the width of the bottom of the lower flange can be increased under the condition of meeting the safety design of the lower flange, and the local pressure damage of the concrete at the periphery of the lower flange is reduced. The grouting material is filled in the annular cylinder cavity formed by the annular cylinder structure, so that the overall strength of the cylinder wall is enhanced, the reinforcing ribs are arranged in the horizontal direction of the annular cylinder structure, the connection with peripheral concrete is greatly enhanced, the fatigue damage of the peripheral concrete is reduced, and the foundation is firm and reliable.
Drawings
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 4 is a partially enlarged view of fig. 3 at B.
Detailed Description
The invention is further illustrated by the following figures and examples.
Embodiment 1, referring to fig. 1 and 2, a connecting device for a tower and a foundation of a wind generating set, the wind power generation tower comprises an upper connecting flange 3, a ring cylinder structure 8, a reinforcing rib 7 and a lower connecting flange 9, wherein the upper connecting flange 3 is fixedly connected with a wind power generation unit tower cylinder 1 through bolts 2, an annular cylinder structure 8 is arranged between the upper connecting flange 3 and the lower connecting flange 9, the annular cylinder structure 8 is positioned at the center of the cylinder wall of the tower cylinder 1 of the wind generating set, the ring cylinder structure 8 comprises two concentric circular rings, a ring cylinder cavity 6 is formed between the two circular rings, the upper connecting flange 3 matched with the center of the ring cylinder cavity 6 is provided with a grouting hole 5, grouting material is poured into the ring cylinder cavity 6, and a reinforcing rib 7 is arranged in the horizontal direction outside the ring cylinder structure 8, and the lower part of the ring cylinder structure 8 and the lower connecting flange 9 are embedded in the foundation 4. The reinforcing rib 7 is a screw which horizontally penetrates through the ring cylinder structure 8 and is fixed with the ring cylinder structure 8 through a nut.
Embodiment 2, referring to fig. 3 and 4, a connecting device for a tower and a foundation of a wind generating set includes an upper connecting flange 12, a ring structure 17, a reinforcing rib 16, and a lower connecting flange 18, where the upper connecting flange 12 is fixedly connected with a tower 10 of the wind generating set by a bolt 11, the ring structure 17 is disposed between the upper connecting flange 12 and the lower connecting flange 18, the ring structure 17 is located at a center of a wall of the tower 10 of the wind generating set, the ring structure 17 includes three concentric rings, two ring cavities 15 are formed between the three rings, a grouting hole 14 is disposed on the upper connecting flange 12 matching with the center of each ring cavity 15, a grouting material is poured into each ring cavity 15, the reinforcing rib 16 is disposed in a horizontal direction outside the ring structure 17, and a lower portion of the ring structure 17 and the lower connecting flange 18 are pre-buried in the foundation 13, the reinforcing rib 16 is a screw which horizontally penetrates through the ring cylinder structure 17 and is fixed with the ring cylinder structure 17 through a nut.
The above are only 2 embodiments listed in the present invention, and 2 preferred examples. The scope of the invention as claimed is not limited to the embodiments. All technical solutions equivalent to the present embodiment, such as the ring cylinder structure forming more than three ring cylinder cavities, belong to the protection scope of the present invention.

Claims (4)

1. The utility model provides a wind generating set tower section of thick bamboo and basic jointing equipment, its characterized in that, it includes flange, ring section of thick bamboo structure, strengthening rib, flange down, go up flange and wind generating set tower section of thick bamboo fixed connection together, be equipped with ring section of thick bamboo structure between flange and flange down, ring section of thick bamboo structure is located wind generating set tower section of thick bamboo wall central point and puts, ring section of thick bamboo structure includes two or more concentric rings, and adjacent ring forms ring section of thick bamboo cavity, is equipped with the grout hole on the flange on the ring section of thick bamboo cavity central point assorted, fill the grout material in the ring section of thick bamboo cavity, be equipped with the strengthening rib at the outside horizontal direction of ring section of thick bamboo structure, the lower part of ring section of thick bamboo structure and flange down are pre-buried in the.
2. The wind generating set tower and foundation connection device of claim 1, wherein the reinforcing ribs are threaded rods that horizontally penetrate the ring tube structure and are fixed with the ring tube structure through nuts.
3. The wind turbine generator system tower and foundation connection device as claimed in claim 1 or claim 2, wherein there are two rings and 1 ring cavity.
4. The wind turbine tower and foundation connection apparatus as claimed in claim 1 or claim 2, wherein there are three rings and 2 ring cavities.
CN201811008373.8A 2018-08-31 2018-08-31 Connecting equipment for tower and foundation of wind generating set Active CN109139385B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811008373.8A CN109139385B (en) 2018-08-31 2018-08-31 Connecting equipment for tower and foundation of wind generating set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811008373.8A CN109139385B (en) 2018-08-31 2018-08-31 Connecting equipment for tower and foundation of wind generating set

Publications (2)

Publication Number Publication Date
CN109139385A CN109139385A (en) 2019-01-04
CN109139385B true CN109139385B (en) 2020-03-17

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ID=64825773

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811008373.8A Active CN109139385B (en) 2018-08-31 2018-08-31 Connecting equipment for tower and foundation of wind generating set

Country Status (1)

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CN (1) CN109139385B (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201747544U (en) * 2010-08-26 2011-02-16 华锐风电科技(集团)股份有限公司 Mounting pedestal of wind-driven generator and wind-driven generator
CN104674837A (en) * 2015-02-26 2015-06-03 石健 Connection structure and connection method of draught fan foundation and draught fan tower barrel
DE102016003265A1 (en) * 2016-03-17 2017-09-21 Senvion Gmbh Method for setting up a wind turbine tower and corresponding wind energy plant
CN206830383U (en) * 2017-06-14 2018-01-02 北京金风科创风电设备有限公司 Tower barrel of wind generating set basis

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CN109139385A (en) 2019-01-04

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