超超临界水冷壁横焊口X射线透照工艺优化

Optimization of X-ray Translucent Technology for Cross Weld of Supercritical Water Wall

应用“贴片夹具”、“ㄣ型别针”,可使拍片人员不用进入炉膛内就能轻松地把片贴在水冷壁焊口背面;通过“双剪叉式液压平台车”液压装置对X射线机焦点进行定位,从而不用专门去搭设X射线机发生器支撑平台。把暗袋安套在托架内,握住把柄,通过水冷壁焊口处鳍片预留间隙伸到焊口背面,调好暗袋位置后,用磁夹吸压把柄,然后利用“ㄣ型别针”前端从托架背面钩紧,使暗袋与水冷壁焊口背面紧贴,再用磁夹吸压ㄣ型别针后端;把X射线机发生器按放在高度可调移动支撑架的“V型槽”上进行焦点定位。接着按常规方法操作处理,就能得到符合标准[1]规定的底片质量。新方法与传统方法相比较在安全、效率、经济方面具有创新点。

The application of "patch clamp" and "T-shaped pin" can make the film maker easily stick the film on the back of the weld joint of the water wall without entering the furnace.The focus of the X-ray machine is positioned by the hydraulic device of "Double Scissors Hydraulic Platform Truck",so that it is unnecessary to set up a supporting platform for the generator of the X-ray machine. Install the concealed bag in the bracket, hold the handle, extend it to the back of the welding joint through the reserved gap of the fin at the welding joint of the water wall, adjust the position of the concealed bag, use the magnetic clamp to absorb and press the handle, and then hook the front end of the "U-shaped pin" from the back of the bracket to make the concealed bag cling to the back of the welding joint of the water wall, and then use the magnetic clamp to absorb and press the rear end of the "U-shaped pin";Place the X-ray generator on the "V-shaped groove" of the movable support frame with adjustable height for focus positioning.Then, according to the conventional method, we can get the quality of negative film which meets the requirements of standard[1].Compared with traditional methods, the new method is innovative in safety, efficiency and economy.