[Ten years of development of chemical equipment] 1388-2024 The first domestic multi-stage centrifugal compressor was successfully tested

Thread Content

2 0 2 4 happy new year * * * * * * * * * * * * * * * * * * * * * * [Ten years of development of chemical equipment] Continue to update summary posts, welcome to participate in the discussion https://bbs.hcbbs.com/thread-3576046-1-1.html (Source: Haichuan Chemical Forum Network) * * * * * * * * * * * * * * * * * Recently, Fujian Meide Petrochemical's 900,000 tons/year propane dehydrogenation to propylene project, China's first set of multi-stage centrifugal compressors, was successfully tested at one time. All operating indicators were normal, and it was highly praised by the owners and supervisors. The compressor is 27 meters long, 6.5 meters wide and 5 meters high, with a total weight of 937 tons. It is the first and largest multi-stage centrifugal compressor in China. Since the dimensions and weight of the compressor exceed the specifications, if it is installed according to the conventional method, the weight of the compressor components will be superimposed, making it more difficult to level and align during the installation process. It will be difficult to complete the operation without the assistance of tooling and large machinery. At the same time, the maximum diameter of the inlet and outlet pipelines of the compressor reaches 2.4 meters, which makes it difficult to connect the stress-free pipelines of the compressor. Once the stress in the pipes during welding or connection with the unit causes the unit alignment data to change, the larger weight of the compressor will cause the unit to recalibrate. * * method to achieve. In order to effectively solve various problems during the installation process, improve construction efficiency and reduce costs, Shaanxi Chemical Construction, together with compressor manufacturers and construction units, conducted multiple demonstrations and innovatively adopted the unit installation method of "sequential installation, cycle alignment, one-by-one fixation, and pre-installation calculation", combined with domestic and foreign stress-free pipe connection specifications, comprehensive Based on the actual conditions on site, a special stress-free installation plan for compressor pipelines was formulated, which perfectly solved the leveling and alignment problems caused by the weight of the superimposed components during the compressor installation process, achieved stress-free connection of the pipelines, and ensured the smooth progress of compressor installation. It once again demonstrated the comprehensive strength of Shaanxi Chemical Engineering with its superb skills. The construction method of large-scale multi-stage centrifugal compressors has also won the Shaanxi Chemical Construction Enterprise-level Construction Method in 2023.