【Ten Years of Rapid Development in Chemical Processing Equipment】From 2018 to 2026, Changqing Oilfield developed China’s first \"integrated automated welding system for oil and gas field pipelines\"”

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Give praise and encouragement to the achievements made in China’s chemical engineering technology and equipment; your participation in discussions is the greatest encouragement. **********************【Ten Years of Great Development in Chemical Engineering Equipment】Regularly updated summary posts – feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html ***************** “In the past, I would weld pipelines on loess slopes; the arc light would make my eyes turn red, and by the end of the day I would suffer from back and neck pain.”； Now, tap the screen and the machine takes care of the rest; it can weld a neat fish-scale pattern in just 3 minutes. ”On April 1, in the production workshop of the Machinery Manufacturing General Factory, Zhou Changqing, who has 34 years of experience in welding, operated the automated welding equipment while expressing his thoughts to the journalists. “The era of manual welding is over! ”This is the result of the digital and intelligent transformation at the Changqing Oilfield, and it serves as the best illustration of how energy companies implement the spirit of the National Two Sessions to drive the digitalization, intelligentization, and greening of the energy industry. As the largest oil and gas field production base in the country, Changqing Oilfield undertakes the mission of ensuring a stable supply of energy; the clean energy it produces benefits more than 50 large and medium-sized cities downstream. Oil and gas pipelines are the \"lifelines\" for energy transportation, and are closely related to **industrial production and people’s daily lives. For a long time, in the construction of oilfield surface facilities, small and medium-diameter pipes have relied on manual welding due to their small diameter and complex installation conditions; this not only results in low welding efficiency but also indirectly affects the stability of energy supply. “About 10 years ago, when welding small-diameter pipes, one had to curl up and twist while moving around the pipe wall in a full circle; the face would turn red from the strain. By the time welding was complete, one was drenched in sweat, as if just pulled out of water. ”Zhou Chongqing said, “In the past, being a welder was a ‘hard job’.” ”In recent years, Changqing Oilfield has focused on the needs of front-line workers and the mission of ensuring a stable energy supply, investing heavily in independent research and development. It has created China’s first \"integrated automated welding system for oil and gas field pipelines,\" which, with its core advantages of \"comprehensive welding, mobility across various terrains, and full-process data collection,\" has completely transformed the landscape of traditional welding methods. “This set of equipment is the ‘all-in-one welder’ for pipeline construction. ”Technician Duan Yilu pointed to the maneuverable all-terrain vehicle and explained, “It can handle complex terrains such as sandy areas and slopes with gradients of less than 30 degrees with ease. The clean energy batteries it is equipped with allow welding operations to continue for over 20 hours, eliminating the need for a fixed power grid or diesel generators and thus enabling true green construction.” ”Welder Qin Minjuan demonstrated on site: By aiming the welding gun at the joint and gently touching the screen, the welding head would start working accurately. Welding data is synchronously uploaded to a digital platform, and each weld joint has a \"digital identity\", enabling full traceability and verification throughout the process. To ensure the safety of pipelines, this device innovatively employs both PA phased-array ultrasound and DR digital radiography for inspection, which is equivalent to performing \"multi-dimensional ultrasound + high-definition X-ray\" on each weld seam in order to identify potential quality issues from all angles. “With PA phased-array ultrasonic testing, the inspection of a single weld seam can be completed in two minutes, allowing for accurate detection of defects ； DR digital radiography: high-definition imaging in 30 seconds – efficient and environmentally friendly. ”Duan Yilu explained that the two types of inspection data are interconnected with the welding data, enabling closed-loop management of the entire \"welding-inspection\" process. Data bears witness to the transformation: technological innovation has increased the welding efficiency of front-line workers by 27% compared to traditional manual welding, with the first-pass success rate remaining above 98%. The weld height is kept within 1 to 2 millimeters, thereby completely addressing the quality issues associated with manual welding. To date, this technology has been applied in key areas such as the Longdong shale oil region, with a total construction length exceeding 46 kilometers. “From manual squat welding to intelligent fast welding, from \"post-event inspection\" to \"full-process control\", the changes in welding methods represent a practical example of the digital transformation in the energy industry; they are also a concrete manifestation of our commitment to ensuring the safety of energy use for the public and caring for workers on the front lines. ”The head of the Machinery Manufacturing Complex said in an interview that the company will continue to focus on digital and intelligent innovation, working to develop key core technologies in the energy sector. This will not only reduce the workload and increase the benefits for workers on the front line, but also enable people to use cleaner, more convenient forms of energy.