Defect Analysis and Treatment of Hydrogen Tank in a Thermal Power Plant
Luo Guanghua · Guangdong Electric Power · 2013
Aiming at such defects of hydrogen tank as abnormal steel plate interlayer and hardness,the paper takes all sorts of detection method to analyze the defect.By thickness detection,acoustic emission detection,magnetic powder and ultrasonic detection,the area,safety grade,activity and the degree of impact on wielding of steel plate interlayer are determined,and the quality of plate cover materials is analyzed by metallurgical detection.The conclusion is: the safety class of the hydrogen tank is three,and the material of end cover appears no degradation;the steel plate interlayer is of no activity and has no influence on normal wielding.Therefore,the defects detected have no impact on the use of hydrogen tank.The paper in the final proposes to strengthen the manufacturing process of steel plates,raise the requirement of hydrogen tank ordering and pay attention to overall inspection on the tank.