【In-depth Discussion on HaiChuan Modular Installation】Detailed with Multiple Images! Modular installation of Yulong Refining & Chemical’s 168-meter tallest torch tower in Asia

Thread Content

【HaiChuan Modular Installation Discussion】Summary Post – Everyone is welcome to participate in the discussion! https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1773168----------------------------------------------------------------------------------- Basic project overview: The flare tower for the Yulong Island refining and chemical integration project (Phase I). The base cross-section of the torch is 36m×26m, the top cross-section is 26m×26m, and its height is 178m ； It is the tallest torch in all of Asia. Among them, the tower height is 168 m and the total weight is 2100 t; it is assembled vertically in eight segments through modular lifting. The first section is assembled at the foundation, while the remaining seven sections are lifted as modular units, with the heaviest one weighing 433.65 tons. Highlights of the project: “168 meters!” \"Asia’s tallest torch tower completed\" On July 18, 2023, with the successful installation of the eighth section of the tower, the torch tower for Yulong Petrochemical’s integrated refining and chemical processing project (Phase I) was completed. The flare tower of the Yulong Petrochemical Integration Project (Phase I) has a height of 168 meters and a total weight of 2,100 tons, making it the tallest flare in all of Asia at present. The torch is assembled vertically in eight segments for modular lifting; the first segment is assembled on the foundation, while segments 2 through 8 are lifted using a SCC20000A type 2000-ton crawler crane, with the lifting process being carried out via the \"single-machine lifting and rotation method\". It is reported that there are many challenges associated with the lifting of this tower, such as unfavorable environmental conditions including work in coastal areas, working at heights, and soft soil foundations. To ensure the successful completion of the lifting task, efforts began with the first technical briefing meeting for the torch tower on March 14, 2023. In accordance with the requirements of Yulong Petrochemical’s Large-Scale Transport and Lifting Management Team: safety, order, efficiency, cost savings, and standardization. A comprehensive plan was developed for the lifting of the torch tower structure. Based on the height and weight of the tower, three different configurations were selected (108m main boom, 108m + 60m tower-type auxiliary boom, 108m + 90m tower-type auxiliary boom) to carry out the lifting of the 7 sections. The site where the tower components would be prefabricated was identified, the ground foundation treatment plan was adjusted, and the design of the lifting mechanisms was optimized. Each lifting operation is guided by the core principle of \"safety first,\" with plans, responsibilities, and measures established to ensure the smooth installation of the torch tower. From the first lifting of the torch tower structure on June 3, 2023, to its completion, it took 45 days to lift 7 sections. In the face of the special situation of eccentricity in the tower’s center of gravity in the eighth section, technicians continuously conducted checks and adjusted the length of the steel cables according to this eccentricity, striving to keep the tower level. Appropriate locations were chosen to secure the wind braces; given the chaotic construction site surrounding it, weight blocks and road base plates were used as fixing anchors, while movable anchors were installed on the periphery to prevent the tower from rotating or colliding with its arms due to wind effects. Before lifting began, a thorough safety briefing was given to all personnel involved in the lifting operation, ensuring that everyone understood the steps and parameters required for the lift, with no room for errors at any stage. The on-site chief supervisor took overall control of the entire site to ensure the successful completion of the eighth section of the torch tower. Before lifting, the relevant parties including the owner, supervisor, and installation unit were consulted to determine the control points for the lifting process, and all their questions were addressed one by one. During the lifting operation, close coordination was maintained with the installation unit to ensure the successful completion of the lifting of the eighth section of the tower, while also maximizing the performance of the SCC20000A 2000-ton class crawler crane.