Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

Article retrieval

文章检索

首页 >> 文章检索 >> 往年索引

GIS焊接技术及焊接接头失效案例分析

来源:电工电气发布时间:2016-04-06 14:06 浏览次数:1

GIS焊接技术及焊接接头失效案例分析 

刘建军,张建国,陈大兵 
(江苏省电力公司电力科学研究院,江苏 南京 211103) 
 

摘 要: 气体绝缘金属封闭开关设备(GIS) 的外壳、支座和母线一般采用铝及铝合金材料焊接成型及相互连接,焊缝开裂相关的缺陷和故障会直接影响电网的安全稳定运行和工程按期投运。论述了GIS 的外壳、支座及导体的焊接技术,并结合GIS 外壳焊缝开裂、支座焊缝开裂和导体焊缝断裂三种典型焊接缺陷和故障案例进行了原因分析,提出焊接接头结构设计不合理、对材料的焊接性分析不足、焊接工艺执行不严是GIS 焊接接头失效的三个主要原因。
关键词: 气体绝缘金属封闭开关设备;焊接技术;焊接缺陷;案例分析
中图分类号:TM643 文献标识码:B 文章编号:1007-3175(2014)11-0042-05


Welding Technology and Case Study of Welding Joint Failure on Gas-Insulated Metal-Enclosed Switchgear 

LIU Jian-jun, ZHANG Jian-guo, CHEN Da-bing 
(Jiangsu Electric Power Company Research Institute, Nanjing 211103, China) 
 

Abstract: Generally, the tanks, supports and buses of gas-insulated metal-enclosed switchgear (GIS) were welded using aluminum and aluminum alloy. Welding defects and faults, such as weld cracking, will directly affect the security and stable operation of the power grid and projects being put into operation on schedule. This paper briefly described the tanks, supports and the welding technology on GIS, combining with three typical weld cracking cases and its reasons analysis. The unreasonable design of welded joint structure, insufficient analysis of weld ability, lax execution of welding process are three main reasons for the failure of welded joints on GIS.
          Key words: gas-insulated metal-enclosed switchgear; welding technology; welding defects; case study


参考文献
[1] 肖登明,董越,黄东海.我国特高压输电工程的GIS技术[J].高电压技术,2006,32(12):115-117.
[2] 张猛,李心一,穆双录.特高压63 kA大容量GIS设备的研制[J].高压电器,2011,47(4):1-6.
[3] 洪国耀,赵羲英,陈冰. 小型化SF6 气体绝缘金属封闭开关设备的研究开发[J]. 高压电器,2012,48(10):78-82.
[4] 郭贤珊.高压开关设备生产运行实用技术[M].北京:中国电力出版社,2006.
[5] 刘泽洪,高理迎,郭贤珊.气体绝缘金属封闭开关设备质量管理与控制[M].北京:中国电力出版社,2011.
[6] DL/T 728-2000 气体绝缘金属封闭开关设备订货技术导则[S].
[7] DL/T 617-2010 气体绝缘金属封闭开关设备技术条件[S].
[8] 颜晨光.GIS铝壳体的焊接工艺[J].焊接,2010(9):66-68.
[9] 张铁民,张宏光,魏铀泉.变极性等离子在GIS铝合金壳体焊接中的应用[J].电焊机,2006,36(2):10-14.
[10] Mazar Atabaki M, Nikodinovski M, Chenier P,et al. Experimental and numerical investigations of hybrid laser arc welding of aluminium alloys in the thick T-joint configuration[J].Optics & Laser Technology, 2014, 59:68-92.
[11] 周万盛,姚君山.铝及铝合金的焊接[M].北京:机械工业出版社,2006.
[12] 郭海清,邝石.GIS设备渗漏原因分析及对策[J].电网技术,2000,24(9):8-9.
[13] 平绍勋.GIS 的渗漏对策和发展方向[J]. 电工技术,2002(6):13-14.
[14] 陈守聚,张晓鹏,陈上吉,等.从监造角度分析特高压HGIS壳体焊接接头的无损探伤检测[J].高压电器,2009,45(6):140-142.
[15] 张建周,杨俊朋,李刚.GIS铝制筒体表面变形质量问题分析[J].电工电气,2013(9):55-56.
[16] 张杰,张浩权,王炯耿,等.封闭式组合电器罐体对接焊缝的超声波检测[J].浙江电力,2012(4):29-31.
[17] 何喜梅,闫斌,邓大勇,等. 变电站GIS 设备筒体焊缝涡流带电检测技术[J]. 青海电力,2012,31(2):17-22.
[18] 刘建军,卞超,张建国,等.GIS分支母线骑坐式焊接接头结构分析及应满足的技术要求[J].高压电器,2012,48(7):109-114.
[19] 仇炜.某变电站GIS导体断裂原因的试验与分析[J].高压电器,2013,49(11):145-151.