向家坝左岸定子机座机坑内组装焊接工艺  

Welding Technology of Stator Frame Assembled in Pit of left bank of Xiangjiaba

作　　者：赵永胜[1] 

机构地区：[1]哈尔滨电机厂有限责任公司,黑龙江哈尔滨150040

出　　处：《防爆电机》2013年第3期53-55,共3页Explosion-proof Electric Machine

摘　　要：向家坝电站水轮发电机定子机座是在工地现场完成组装焊接的,其结构特征为斜立筋支撑、大齿压板结构。定子机座在工地焊接成整体后钻定子铁心穿心螺杆孔。定子机座外径为21500mm,内径为20480mm(下环板19908mm),高5885mm。机座分5瓣,每瓣重约43.6t,最大运输尺寸为13502×5885×2053mm。定子机座共分8层环板,每层环板之间对接焊接,机座组装后有20个支腿,每条支腿与基础板连接,基础板用地脚螺栓固定在混凝土基础上。The stator frame of hydraulic turbine generator in Xiangjiaba power station was welded and assembled in work site. It has the structural characteristics of supporting with oblique ribs,clamping with big tooth pressure plate, and punching screw hole throughout stator core after the stator frame being welded into a whole. Its outer diameter is 21500mm, inner diameter is 20480mm （inner diameter of lower ring plate is 19908mm ） and height is 5885mm. The stator frame is divided into 5 petals, the weight of each petal is about 43.6 tons, and maximum size for transporting is 13502 ×5885× 2053mm. The stator frame consist of 8 layer ring plates, and the butting welding process is applied between ring plates. The assembled stator frame has 20 supporting legs, each leg is connected with base plate, and the base plate is fixed on the concrete foundation with foot bolts.

关 键 词：机座 组装 焊接 工艺 

分 类 号：TM305.1[电气工程—电机]