Xionggu automatic welding machine accelerates the welding work of the 1st lot of Sino-Russia Eastern Pipeline (phase 3 Nantong-Luzhi). The Nantong-Luzhi section of of the Sino-Russia Eastern pipeline is a key oil and gas infrastructure project approved by the National Development and Reform Commission. After completion, it can realize the interconnection of the Sino-Russia Eastern pipeline, the 1stWest to East pipeline, the Shanghai branch of the 2ndWest to East gas pipeline, and the Jiangsu Rudong pipeline. It plays an extremely important role in optimizing energy and realizing energy conservation and emission reduction in the Yangtze River Delta and various provinces and cities along the line.
The first lot of the project is contracted by Sichuan Oil erringeering & Construction Co., Ltd. and passes through Xindian Town, Rudong County, Jiangsu Province, Shigang Town and Shizong Town, Tongzhou District, and Sanyu Town, Tongzhou Bay. The total length of the pipeline is 34.1km, the pipe diameter is 1422mm, the pressure is 10MPa, the wall thickness of the straight welded pipe is 32.1mm, the wall thickness of the hot bending is 35.2mm, and the whole pipeline is made of X80 steel pipes.
This lot is contracted by Sichuan Oil Engineering & Construction Co., Ltd., who has two spreads of automatic welding machine including two sets of Xionggu automatic welding machines A-810 (internal welding machines) and 20 sets of Xionggu automatic welding machines A-610 (dual torch external welding machines). Due to the dense irrigation channels and farmhouses in this area. Since May, the temperature has risen sharply, and the temperature of welding shed has reached about 40 ℃. In addition, since April, Nantong City has taken comprehensive closed management due to the epidemic, and the transportation roads have been shut down for more than 40 days due to the epidemic. The management of Sichuan Oil Engineering & Construction Co., Ltd. has made overall planning and scientific arrangements, focusing on timely sorting out production coordination, and on solving the "obstruction" in the construction process.
Since the resumption of work on May 17, with the close cooperation of the technical service team of Xionggu company, a total of 100 joints have been created for 6 consecutive days, with a qualified rate of 98%. On May 22, one spread achieved 20 joints, and only one day later. On May 24, the first spread achieved a new high in number of welded joints in a single day, reaching 30 joints in a single day. The second welding spread is also achieved between 13 and 16 joints per day. It was highly affirmed and praised by Sichuan Oil Engineering & Construction Ltd., Co.