【Ten Years of Rapid Development in Chemical Processing Equipment】New intelligent instrumentation systems for plasma systems, fully domestically developed, were put into use for the first time between 2025 and 2588

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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 Progress 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 plasma transformation project for Unit 4 at Huadian Qingdao Power Generation Co., Ltd., carried out by Kehuan Group’s Yantai Longyuan branch, was completed with successful commissioning, marking the first time that domestically produced, intelligent instrument systems for plasma systems have been put into use. The plant’s boilers are subcritical-pressure, once-intermediate-reheat control-cycle boilers, equipped with a straight-feed pulverization system using 3 BBD4060C type double-inlet double-outlet ball mills. To further enhance peak-shaving capacity and improve the flexibility of the units, this renovation adds a plasma ignition system on the B1 floor to meet the requirements for combustion assistance and stable combustion at low loads. The plasma ignition system of Unit 4 is equipped with a new type of intelligent instrument that can monitor the parameters of the carrier gas in real time and automatically adjust them to the set values. Compared to traditional ignition methods, this system eliminates the risk of errors resulting from manual operation, and the wind stability of the plasma carrier is significantly improved. During the nearly 40-hour ignition process, there were no abnormal fluctuations in the wind pressure of the carrier air, and the coordinated operation of the intelligent instruments and the plasma system ensured the uniformity and controllability of the combustion process. By eliminating redundant designs such as the purge air bypass, this device achieves hardware integration, reducing equipment costs by 10,000 yuan (calculated based on 0.4 yuan per layer of the boiler). It breaks away from the traditional \"stacked\" design approach of instrument systems, offering a solution for making industrial equipment more efficient and compact ； Equipped with an intelligent flow control system, the carrier wind can be adjusted autonomously according to operating conditions, thereby eliminating the interference caused by fluctuations in main pipe pressure ； By using flow monitoring in place of traditional pressure indicators and establishing a real-time mapping relationship between data and operating conditions, a more precise data feedback mechanism is achieved to enable rapid early warning of abnormalities in water and air parameters ； Modular intelligent interfaces are reserved to provide room for further development, such as the digital upgrading of the system and intelligent diagnostics.