城市污水处理厂不锈钢工艺管道焊接质量控制技术研究

Research on Welding Quality Control Technology of Stainless Steel Process Pipe in Municipal Sewage Treatment Plant

西海污水处理厂三期工程曝气管道、水下管道等工艺管道均为不锈钢材质,总长约1436m,管道型号多样,最大直径800mm,最小直径32mm。不锈钢管道采用焊接工艺连接,焊接质量直接关系管道密封性,为提供管道焊接连接质量,从技术交底、管道下料、坡口控制、焊接工艺等方面制定控制措施,通过加强现场管控,不锈钢管道焊接质量一次合格率提高了15.3%,有效地确保了管道施工焊接质量,同时可为类似项目施工提供参考。

The aeration pipeline,underwater pipeline and other process pipelines of Xihai sewage treatment plant phase III project are all made of stainless steel,which is a total length of about 1436m and various types of pipelines of a maximum diameter of 800mm and a minimum diameter of 32mm.The stainless steel pipeline is connected by welding process and the welding quality is directly related to the pipeline sealing.In order to improve pipeline welding connection quality,the control measures are formulated from the aspects of technical disclosure,pipeline blanking,groove control,welding process,etc.Through strengthening the on-site control,the first time yield of stainless steel pipeline welding quality is increased by 15.3%,so as to ensure the pipeline construction welding quality and provide reference for similar project construction.