[Ocean opens eyes] Within one year, Guangdong Refining and Chemical Cracking Furnace completed capping
Thread Content
The 1.2 million tons/year ethylene device is the device with the largest one-time investment and the longest construction period in the Guangdong petrochemical project. It is also the leading device and core device of the chemical industry zone. It is scheduled to be handed over on March 30, 2022. As the overall design institute, Huanqiu Corporation has given full play to its advantages in technology and resource integration in the fields of refining and chemical industry, aiming to build a deeply integrated refining and chemical integrated plant, and has continuously increased the coordination of the main design. As the EPC general contractor of the ethylene plant, Beijing Huanqiu and Sixth Construction Company are responsible for the specific construction work. Beijing Huanqiu is mainly responsible for design and procurement, and Sixth Construction Company is mainly responsible for construction. The on-site construction management team is composed of members from both parties.
The ethylene plant of the Guangdong Petrochemical Project is equipped with a total of 6 double-furnace liquid furnaces and 2 double-furnace gas furnaces, each with a scale of 200,000 tons/year. Among them, the liquid furnace is the largest single unit in China. Since the "first hoisting" of the cracking furnace radiation chamber started on November 2, 2020, it took 13 months to complete all hoisting. The construction of the cracking furnace overcame difficulties such as a small working site, long construction period, and cross-cutting operations. The builders overcame the effects of extreme weather such as high temperatures, rainy seasons, and typhoons. They did everything possible to ensure quality and race against time. They used ground prefabricated assembly of external frames and modular hoisting, which effectively shortened the construction period and reduced safety risks. A total of 64 convection section modules and 128 frames were lifted into place during the construction of the cracking furnace. A total of 9,119.6 tons of convection section modules and 8,540 tons of external frame steel structures were installed.
I have collected this series. If you are interested, you can click [Guess the Haichuan Equipment] series. The series will continue to be updated in 2021. All Haichuan friends are welcome to actively participate! https://bbs.hcbbs.com/thread-2079686-1-1.html (Source: Haichuan Chemical Forum)
During the installation process of the outer frame of the cracking furnace, engineers designed the 1,065-ton steel structure of each furnace into 17 modules. They were first assembled on the ground to the maximum extent and then hoisted as a whole. This not only ensures construction quality and safety, but also shortens the installation cycle and effectively saves construction costs. In order to ensure the installation quality and progress of the furnace body frame, minimize high-altitude operations, and reduce the difficulty and risk of safety and quality management, the project department carefully planned and adopted modular construction measures of assembling pieces or frames on the ground. Considering that the first floor frame of 0 to 17.3 meters is relatively low, the simplest method was adopted, assembling pieces on the ground according to each axis, and then hoisting and installing them. ； The second, third and fourth floor frame installations ranging from 17.3 meters to 51.5 meters are mainly composed of frames and interspersed with panels. If they can be assembled on the ground, there will never be a single installation operation at high altitude. Therefore, it is planned to form 17 groups of modules on the ground. The largest module is 22.5 meters long and 3.5 meters wide. It is 9.6 meters high and the heaviest module is 81 tons. Each module includes columns, steel beams, diagonal braces, etc. Anti-corrosion primer and topcoat are also painted on the ground. According to the installation elevation and volume weight of these modules, they are respectively adapted to 750-ton, 220-ton, and 100-ton crane main cranes.