【Ten Years of Rapid Development in Chemical Equipment】2763–2025: Localization of software and hardware for Lanzhou Petrochemical’s DCS control system

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Let’s 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】Regular updates and summaries are available – feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html ***************** “Since the installation of domestic control systems, the operation has been responsive and smooth, providing strong support for the production volume of No. 0 petroleum resin to exceed 10,000 tons.” ”On October 10, in the control room of Lanzhou Petrochemical’s 8,000-ton/year carbon pentane hydrogenation petroleum resin plant, operation engineer Chang Guoheng said excitedly. 　　At present, although domestic DCS brands are being increasingly used in the petrochemical industry, key chips and core components such as controllers and data processors still rely heavily on imports, leaving China’s industrial control sector facing challenges such as shortages of these chips. 　　Since September 2024, Lanzhou Petrochemical has proactively adapted to **development needs and the requirements regarding the autonomy and control of China’s petroleum industry control systems. Through this renovation, all of the non-domestic DCS control system hardware and software in the 8,000 tons per year carbon pentene hydrogenation petroleum resin production facility were replaced with domestic components, thereby further enhancing the security of industrial automation and control system networks. 　　Faced with a situation where there were no precedents to follow and no standards to adhere to, Lanzhou Petrochemical quickly assembled a task force composed of relevant company departments, experts, and manufacturers. Through multiple rounds of risk identification, testing, and optimization, efforts were made to ensure that the technical approach for the on-site use of domestic systems was feasible, risk predictions were accurate, and the measures taken were scientific. Plan in advance for the compatibility of new types of measurement and control networks, and train personnel to become familiar with the operation interfaces as well as domestic operating systems, to ensure a smooth transition and seamless integration of the control systems during the upgrade process. During the renovation process, while maintaining the existing positions of the cabinets, the cables between them, and the stability of the on-site signals, core components such as clips, bases, and terminal boards were replaced with domestically produced ones. The servers, operation stations, and software were also updated accordingly. Throughout this process, equipment compatibility issues were addressed one by one, thereby laying a solid foundation for the subsequent site acceptance testing (SAT) and site integration testing (SIT). 　　The successful operation of this system marked a breakthrough of zero for domestically produced DCS systems in complex petrochemical plants, significantly advancing the process of upgrading industrial control systems in the petrochemical industry. In the future, this fully domestic control system will further mature through long-term use, and then be applied to other refining and chemical processing units, providing a replicable \"Lanzhou Petrochemical Solution\" for the stable deployment of fully domestic control systems in large-scale refining and chemical processing facilities.