CN202520464U - 一种轴流式水轮机叶片 - Google Patents

一种轴流式水轮机叶片 Download PDF

Info

Publication number
CN202520464U
CN202520464U CN2012201064628U CN201220106462U CN202520464U CN 202520464 U CN202520464 U CN 202520464U CN 2012201064628 U CN2012201064628 U CN 2012201064628U CN 201220106462 U CN201220106462 U CN 201220106462U CN 202520464 U CN202520464 U CN 202520464U
Authority
CN
China
Prior art keywords
blade
axial flow
water turbine
flow water
flange shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2012201064628U
Other languages
English (en)
Inventor
孙伟平
黄清
时新鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANGZHOU HANGFA POWER GENERATION EQUIPMENT Co Ltd
Original Assignee
HANGZHOU HANGFA POWER GENERATION EQUIPMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HANGZHOU HANGFA POWER GENERATION EQUIPMENT Co Ltd filed Critical HANGZHOU HANGFA POWER GENERATION EQUIPMENT Co Ltd
Priority to CN2012201064628U priority Critical patent/CN202520464U/zh
Application granted granted Critical
Publication of CN202520464U publication Critical patent/CN202520464U/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • 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
    • Y02E10/20—Hydro energy

Landscapes

  • Hydraulic Turbines (AREA)

Abstract

本实用新型涉及一种轴流式水轮机叶片，所述轴流式水轮机包括法兰轴，所述叶片的进水边、出水边与法兰轴的交接处分别有一定厚度和长度的延伸部分，所述延伸部分具有圆角。本实用新型结构简单，能有效地降低应力值，消除应力集中现象，增加叶片的强度。

Description

一种轴流式水轮机叶片
技术领域
本实用新型涉及一种轴流式水轮机部件，尤其是涉及一种轴流式水轮机叶片。
背景技术
轴流式水轮机广泛用于较低水头、较大流量的水电站。由于轴流式转轮叶片为悬臂受力，叶片根部若无过渡圆弧或者过渡量小易产生应力集中；同时在水压力作用下，叶片的高应力区还出现于叶片进、出水边侧与法兰轴交接处。实践表明，如果轴流式水轮机叶片的基本应力较高，叶片容易产生疲劳破坏，从而产生裂纹影响机组的安全运行。
目前国内多数厂家提高轴流式水轮机叶片强度所采用的方法主要是加大叶片根部的过渡圆的半径，或者在叶片进出水边和法兰轴的交接面处开应力缓冲槽。大幅的加大叶片根部的过渡圆可以很好的降低叶片根部的应力值，但同时会影响水轮机的过流能力，从而影响水轮机出力。在叶片进、出水边和法兰轴的交接面处开应力缓冲槽，可以缓解应力集中。但是，过大、过深的缓冲槽不能有效降低应力集中，反而导致应力集中加剧、漏水损失和局部气蚀增大，影响水轮机效率和使用寿命。
实用新型内容
针对现有技术存在的缺陷，本实用新型提供了一种具有高强度的轴流式水轮机叶片。
一种轴流式水轮机叶片，所述轴流式水轮机包括法兰轴，所述叶片的进水边、出水边与法兰轴的交接处分别有一定厚度和长度的延伸部分，所述延伸部分具有圆角。
本实用新型结构简单，能有效地降低应力值，消除应力集中现象，增加叶片的强度。
附图说明
图1是本实用新型的结构示意图。
图2是本实用新型图1中A结构的局部放大图。
图3是本实用新型图1中B结构的局部放大图。
具体实施方式
下面结合附图和具体实施例对本实用新型作进一步说明，但本实用新型的保护范围并不限于此。
参照图1~3，一种轴流式水轮机叶片，所述轴流式水轮机包括法兰轴1，所述叶片的进水边2、出水边3与法兰轴1的交接处分别有一定厚度和长度的延伸部分4，所述延伸部分4具有圆角5。
本实用新型结构简单，能有效地降低应力值，消除应力集中现象，增加叶片的强度。

Claims (1)

1.一种轴流式水轮机叶片，所述轴流式水轮机包括法兰轴，其特征在于：所述叶片的进水边、出水边与法兰轴的交接处分别有一定厚度和长度的延伸部分，所述延伸部分具有圆角。
CN2012201064628U 2012-03-21 2012-03-21 一种轴流式水轮机叶片 Expired - Fee Related CN202520464U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012201064628U CN202520464U (zh) 2012-03-21 2012-03-21 一种轴流式水轮机叶片

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012201064628U CN202520464U (zh) 2012-03-21 2012-03-21 一种轴流式水轮机叶片

Publications (1)

Publication Number Publication Date
CN202520464U true CN202520464U (zh) 2012-11-07

Family

ID=47103416

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012201064628U Expired - Fee Related CN202520464U (zh) 2012-03-21 2012-03-21 一种轴流式水轮机叶片

Country Status (1)

Country Link
CN (1) CN202520464U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109139333A (zh) * 2018-09-29 2019-01-04 东方电气集团东方电机有限公司 一种带圆角结构的分瓣式水轮机模型转轮及其制造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109139333A (zh) * 2018-09-29 2019-01-04 东方电气集团东方电机有限公司 一种带圆角结构的分瓣式水轮机模型转轮及其制造方法

Similar Documents

Publication Publication Date Title
CN102889237B (zh) 一种应用带尖角前缘的大小叶片叶轮及压气机
CN202520464U (zh) 一种轴流式水轮机叶片
CN103511327A (zh) 一种水泵的节能复合叶轮
Wu et al. Cracking reason for Francis turbine blades based on transient fluid structure interaction
CN204663967U (zh) 一种与径向导叶匹配的多级离心泵叶轮
CN203612187U (zh) 船用螺旋桨
Xiuli et al. Hydraulic optimization of two-way counter-rotating axial flow pump turbine
CN102287307A (zh) 水泵水轮机空间曲面导叶
CN204402971U (zh) 一种通道型螺旋离心泵
CN201588813U (zh) 高扬程高效率水泵叶轮
CN103807084A (zh) 水轮机转轮体内的消涡装置
CN100427753C (zh) 一种h型流道转轮的混流式水轮机
CN202579008U (zh) 一种切击式水轮机转轮
CN201650847U (zh) 屏蔽电泵用叶轮
CN204041329U (zh) 混流式水轮机叶片
CN102734041A (zh) 一种切击式水轮机转轮
CN205013312U (zh) 一种立式渣浆自吸泵
CN204419687U (zh) 一种离心泵分流叶片叶轮
CN2816438Y (zh) 离心泥砂水泵
CN203239637U (zh) 长短叶片诱导轮前置预旋板的泵的结构设计
CN203604248U (zh) 一种减弱轴流泵叶顶泄漏流和泄漏涡的叶片结构
CN215170803U (zh) 一种新型叶轮定位结构循环水泵
CN201218227Y (zh) 塑料泵耐高温叶轮
CN203978849U (zh) 一种流道内置刀片的单流道离心泵
CN202746277U (zh) 一种水泵的节能复合叶轮

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121107

Termination date: 20160321

CF01 Termination of patent right due to non-payment of annual fee