【Ten Years of Rapid Development in Chemical Processing Equipment】From 2028 to 2025, the PLC control systems for the key equipment used in sulfur storage and transportation at the Puguang Gas Field’s natural gas purification plant have been made 100% domestically produced

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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】A continuously updated summary post is available – feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html ***************** Recently, the localization of the PLC control systems (programmable logic controllers) used for sulfur storage and transportation at the natural gas purification plant in Puguang Gas Field, operated by Sinopec, was successfully completed, marking 100% localization of its core control systems. This is the first time such a measure has been implemented in large-scale sulfur storage and transportation facilities in China, and it holds significant demonstrative value for promoting the autonomy and control of control systems in the petrochemical industry as well as their upgrading and transformation. The sulfur storage and transportation PLC system is known as the control \"brain\" for the operation of the facility, playing a crucial role in improving its operational efficiency. Since 2022, Puguang Gas Field has gradually replaced all the non-domestic PLC control system hardware and software components used in the entire process of sulfur belt transportation, silo storage and transfer, and train loading with domestic alternatives, ultimately achieving 100% domestic ownership of the core control systems. As part of this upgrade, 7 sets of PLC control cabinets and 3 sets of operator stations were replaced in total. The control software and hardware were fully replaced with domestic alternatives and their functions were optimized. This not only improved the system’s response speed and control accuracy but also introduced 13 user-friendly features such as voice alarms and information pop-ups, thereby greatly enhancing operational convenience. The successful deployment of this new system not only overcame the key technical barriers to the use of domestically produced PLCs in large-scale sulfur storage and transportation systems, but also resulted in a replicable and scalable \"Puguang solution\"; it further demonstrated the reliability and suitability of domestically produced control systems.