CN201794723U - 风轮增长环 - Google Patents

风轮增长环 Download PDF

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CN201794723U
CN201794723U CN2010202614062U CN201020261406U CN201794723U CN 201794723 U CN201794723 U CN 201794723U CN 2010202614062 U CN2010202614062 U CN 2010202614062U CN 201020261406 U CN201020261406 U CN 201020261406U CN 201794723 U CN201794723 U CN 201794723U
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wind wheel
blade
wind
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王海刚
唐贤锋
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Shanghai Electric Wind Power Group Co Ltd
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SHANGHAI SEWIND CO Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/74Wind turbines with rotation axis perpendicular to the wind direction
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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Abstract

本实用新型公开了一种风力发电机组叶片用风轮增长环。随着风电机组风轮的不断增大,需增加叶片长度,现在所用的方法为重新设计叶片,但风电行业的快速发展造成叶片开发周期变短,导致大量叶片模具及其配套设备被浪费,而且原本已是超长的风机叶片,其运输难度及运输费用也进一步增加。本实用新型公开的风轮增长环采用圆柱筒体为主体,圆柱筒体两端分别连接叶片和叶片轴承,在使用原有叶片的基础上完成了叶片的增长,提高了风轮的扫风面积。风轮增长环的使用节约了叶片开发费用,使大量叶片模具及其配套设备不被浪费,减少了因叶片增长所增加的制造费用及运输费用,同时还有利于叶片的标准化程度及批量化生产。

Description

风轮增长环
技术领域:
本实用新型涉及风力发电设备。
技术背景:
叶片是风电机组的重要组成部分之一。现有叶片普遍采用在叶片根部通过T型螺栓结构直接将叶片连接到叶片轴承上。随着风电机组风轮的不断增大,需增加叶片长度。现在常用的方法为重新设计叶片,但风电行业的快速发展导致叶片换型频繁,叶片的批量化过程及开发周期也随之变短,大量叶片模具及其配套设备被浪费。一套叶片模具价格已是上千万元,而且原本已是超长的风机叶片,其运输难度及运输费用也进一步增加。此外,不断变更的风机叶片也给风机叶片的标准化产生阻碍。
发明内容:
本实用新型旨在提高风轮扫风面积的同时延长现有叶片的使用周期,改进结构设计,实现降本增效。技术方案如下:
不破坏现有叶片的整体结构,采用风轮增长环的结构实现叶片的增长。
本实用新型公开的风轮增长环采用圆柱筒体为主体,圆柱筒体长度由风机塔筒的壁厚以及风机载荷计算得出,圆柱筒体两端焊接法兰,分别用T型螺栓连接叶片、用螺栓连接叶片轴承。
风轮增长环通过叶根螺栓与风机叶片连接,叶根螺栓在风轮增长环所在端用螺母固定,在风机叶片端通过安装在风机叶片中的圆柱螺母固定,形成一个T型螺栓结构。
风轮增长环通过螺栓与叶片轴承连接,螺栓在风轮增长环所在端用螺母固定。
通过安装风轮增长环,在使用原有叶片的基础上完成了叶片的增长,提高了风轮的扫风面积。
风轮增长环的使用节约了叶片开发费用,使大量叶片模具及其配套设备不被浪费,减少了因叶片增长所增加的叶片开发费用以及新叶片制造费用,降低了运输难度及运输费用,同时还有利于叶片的标准化程度及批量化生产。
附图说明:
图1是风轮增长环与风机叶片及叶片轴承的连接示意图
图2是风轮增长环与风机叶片及叶片轴承的连接结构图
图3是风轮增长环与风机叶片的连接结构放大图
图4是风轮增长环与叶片轴承的连接结构放大图
具体实施方式:
下面将结合附图对本实用新型作进一步说明。
图1是风轮增长环与风机叶片及叶片轴承的连接示意图。风轮增长环采用圆柱筒体为主体,圆柱筒体两端焊接法兰,分别连接叶片和叶片轴承。
风轮增长环通过T型螺栓连接风机叶片,具体连接方式如图3所示:风轮增长环通过叶根螺栓与风机叶片连接,叶根螺栓在风轮增长环所在端用螺母固定,在叶片端通过安装在叶片中的圆柱螺母固定,形成一个T型螺栓结构。
风轮增长环通过螺栓连接叶片轴承,具体连接方式如图4所示,螺栓在风轮增长环所在端用螺母固定。
通过安装风轮增长环,在使用原有叶片的基础上完成了叶片的增长,提高了风轮的扫风面积。

Claims (4)

1.风轮增长环,其特征在于:采用圆柱筒体为主体,圆柱筒体两端焊接法兰,分别连接风机叶片和叶片轴承。
2.根据权利要求1所述的风轮增长环,其特征在于:风轮增长环通过叶根螺栓与风机叶片连接。
3.根据权利要求2所述的风轮增长环,其特征在于:叶根螺栓在风轮增长环所在端用螺母固定,在风机叶片端通过安装在风机叶片中的圆柱螺母固定,形成一个T型螺栓结构。
4.根据权利要求1所述的风轮增长环,其特征在于:风轮增长环通过螺栓与叶片轴承连接,该螺栓在风轮增长环所在端用螺母固定。 
CN2010202614062U 2010-07-16 2010-07-16 风轮增长环 Expired - Lifetime CN201794723U (zh)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102338045A (zh) * 2010-07-16 2012-02-01 上海电气风电设备有限公司 风轮增长环
CN102518569A (zh) * 2012-01-11 2012-06-27 保定华翼风电叶片研究开发有限公司 风力发电机用叶片和具有其的风力发电机
CN102562486A (zh) * 2012-02-07 2012-07-11 国电联合动力技术有限公司 一种分段式风机叶片及其安装方法
CN105370507A (zh) * 2015-12-08 2016-03-02 中国科学院工程热物理研究所 一种风电叶片根部延长段构件及其制造方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102338045A (zh) * 2010-07-16 2012-02-01 上海电气风电设备有限公司 风轮增长环
CN102518569A (zh) * 2012-01-11 2012-06-27 保定华翼风电叶片研究开发有限公司 风力发电机用叶片和具有其的风力发电机
CN102562486A (zh) * 2012-02-07 2012-07-11 国电联合动力技术有限公司 一种分段式风机叶片及其安装方法
CN105370507A (zh) * 2015-12-08 2016-03-02 中国科学院工程热物理研究所 一种风电叶片根部延长段构件及其制造方法
CN105370507B (zh) * 2015-12-08 2017-12-19 中国科学院工程热物理研究所 一种风电叶片根部延长段构件及其制造方法

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Owner name: SHANGHAI ELECTRIC WIND ENERGY CO., LTD.

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Address after: 200241 Dongchuan Road, Minhang District, building No. 4, building 555, building 4

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