Development and Application of Automatic Welding Equipment for Large-caliber Long-distance Heat Pipes
In the long-distance heat supply pipeline network construction construction process,the pipeline installation effi-ciency is a decisive factor affecting the progress of the project,to improve the efficiency of pipeline welding and welding quality is to ensure that the progress of the project and the construction quality of the important measures.For the long-distance heat pipe network welding conditions in Hohhot,the all-position automatic welding system for large-diameter heat-ing pipes developed by Beijing Institute of Petroleum and Chemical Technology was selected for the engineering field appli-cation research.Through the modular integration of the flexible guide rail that can be adapted to the diameter of the pipe,the traveling drive system,the long-stroke torch attitude adjustment mechanism,the real-time control system of high-speed het-erogeneous network,the digital welding power source and the mobile workstation,the all-position welding system can be utilized for the modularization of the process parameters presetting function and the welding quality adjustment mechanism.The system's preset process parameter function and all-position parameter automatic call to realize the all-position welding of large-caliber long-distance heat pipe.In the Toktor to Hohhot heating pipeline in the fifth engineering application,the re-sults show that:the use of automatic welding equipment for thermal pipelines reduces the labor intensity of welders,im-proves the quality of welding,and significantly shortens the welding period.For the heat pipeline project using pipeline auto-matic welding equipment application promotion provides valuable experience.
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