CN206429343U - 一种水轮机座环与蜗壳随型焊接结构 - Google Patents

一种水轮机座环与蜗壳随型焊接结构 Download PDF

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CN206429343U
CN206429343U CN201621481175.XU CN201621481175U CN206429343U CN 206429343 U CN206429343 U CN 206429343U CN 201621481175 U CN201621481175 U CN 201621481175U CN 206429343 U CN206429343 U CN 206429343U
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spiral case
welding
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joint welding
welding side
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刘杰
桂勇
王育才
刘晓航
李岚
刘凡
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Chongqing Water Turbine Works Co Ltd
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Chongqing Water Turbine Works Co Ltd
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    • 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

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Abstract

本实用新型公开了一种水轮机座环与蜗壳随型焊接结构，座环与蜗壳的焊接点向外进行了延伸，形成一个随型搭焊边，蜗壳焊接在随型搭焊边上。所述蜗壳搭焊边随着蜗壳每节的角度变化进行配置。本新型将蜗壳搭焊边随着蜗壳每节的角度变化进行配置，使座环与蜗壳的焊接点向外进行了延伸，增大了焊接空间，焊接更为方便，同时对焊接缝消缺及探伤检查处理更为方便，节约施工时间，保证施工质量。随型焊接使搭焊边与蜗壳相接处角度很接近，减小了此处蜗壳的应力集中，水流更均匀顺畅，提高了机组的水力性能。

Description

一种水轮机座环与蜗壳随型焊接结构
技术领域
本实用新型涉及到一种座环与蜗壳之间设置随型焊接结构。
背景技术
常规座环与蜗壳之间的连接形式主要是不带蝶型边的箱式结构，蜗壳直接焊接在座环环板上，焊接点离固定导叶中心较近。但是大部分蜗壳因运输条件限制，需要在电站现场完成焊接，座环上、下环板相距水轮机中心线的高度不大，在电站现场进行蜗壳搭焊时，焊接位置较低并靠近机组设备，同时受座环与顶盖把合面等空间结构影响，现场焊接施工困难，焊缝难以探伤检查，焊接质量无法得到保证，焊缝消缺及光滑处理都较困难，容易出现应力集中，为机组安全、稳定、高效的运行留下了隐患。
实用新型内容
本实用新型提出一种水轮机座环与蜗壳随型焊接结构，解决现有座环与蜗壳之间焊接不便，焊缝质量无法保证、施工周期延长、蜗壳容易出现应力集中等问题，并能提高机组水力性能。
具体的技术为，一种水轮机座环与蜗壳随型焊接结构，其特征在于：座环与蜗壳的焊接点向外进行了延伸，形成一个随型搭焊边，蜗壳焊接在随型搭焊边上。
所述蜗壳搭焊边随着蜗壳每节的角度变化进行配置。
本新型将蜗壳搭焊边随着蜗壳每节的角度变化进行配置，使座环与蜗壳的焊接点向外进行了延伸，增大了焊接空间，焊接更为方便，同时对焊接缝消缺及探伤检查处理更为方便，节约施工时间，保证施工质量。随型焊接使搭焊边与蜗壳相接处角度很接近，减小了此处蜗壳的应力集中，水流更均匀顺畅，提高了机组的水力性能。
附图说明
附图1为现有座环与蜗壳之间的连接应用示意图；
附图2为本实用新型座环与蜗壳随型焊接结构示意图。
图中，1为顶盖，2为蜗壳，3为随型搭焊边，4为座环。
具体实施方式
如图2所示，随型搭焊边3和座环4在工厂内根据每节蜗壳角度的变化进行配置，完成焊接并进行探伤检测，确保焊缝质量。在电站现场搭焊时，随型搭焊边3的存在将搭接点向外进行了延伸，焊接空间较大，焊接施工及焊缝探伤更为方便、快捷，焊接质量容易得到保证。
此种结构解决现有座环与蜗壳之间焊接不便，焊缝质量无法保证、施工周期延长、蜗壳容易出现应力集中等问题，并能提高机组水力性能。
以上结合附图对本发明的具体实施方式作进一步详细的说明，但本发明并不局限于这些实施方式，任何在本实施例基本精神上的改进或替代，仍属于本发明权利要求所要求保护的范围。

Claims (2)

1.一种水轮机座环与蜗壳随型焊接结构，其特征在于：座环与蜗壳的焊接点向外进行了延伸，形成一个随型搭焊边，蜗壳焊接在随型搭焊边上。
2.如权利要求1所述的水轮机座环与蜗壳随型焊接结构，其特征在于：所述蜗壳搭焊边随着蜗壳每节的角度变化进行配置。
CN201621481175.XU 2016-12-30 2016-12-30 一种水轮机座环与蜗壳随型焊接结构 Active CN206429343U (zh)

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