The upgrade project of the Quanying ADMC thermoelectric intelligent control system at Shaanxi Aowei Qianyuan Chemical Co., Ltd. has passed the acceptance inspection

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The 25th National \"Safety Production Month\" in 2026: Everyone talks about safety, and everyone knows how to handle emergencies; identifying and addressing risks and hazards. -------------------------------------------------- Recently, the upgrade project for the Quanying ADMC thermal power intelligent control system at Shaanxi Aowei Qianyuan Chemical Co., Ltd. was approved, marking another application of this system in the power systems of chemical enterprises. To meet the requirements for the coordinated operation of multiple boilers, turbines, as well as environmental protection and auxiliary systems at the Aowei Qianyuan Power Plant, this intelligent control upgrade has ensured that the automatic operation rate of key equipment exceeds 95%. The production metrics have improved significantly compared to the manual operation phase, enabling the plant’s thermal and electrical operations to move from being regulated based on manual experience to being controlled through intelligent systems and automated processes. Shaanxi Aowei Qianyuan Chemical Co., Ltd. is located in Fugu County, Yulin City, Shaanxi Province, and is a company focused on chemical production. For chemical enterprises, the power plant is not only the energy foundation that ensures the continuous and stable operation of the main production facilities, but it also plays a key role in determining the enterprise’s energy efficiency, environmental control measures, safe operation, and operational costs. The thermal power system equipment at Aowei Qianyuan Power Plant is large in scale and highly coupled. This project involves 3 280 t/h circulating fluidized bed (CFB) boilers, 1 320 t/h circulating fluidized bed (CFB) boiler, 2 50 MW extraction steam turbine units, 2 double reduction units, as well as various key production systems such as denitration, in-furnace desulfurization, deoxygenated feedwater systems, air cooling systems, and auxiliary equipment for steam turbines. It represents a typical scenario of coordinated operation of multiple boilers, multiple steam turbines, and multiple systems. Under the traditional operating mode, the boiler, steam turbine, deaerated feedwater, environmental protection system, and auxiliary equipment influence each other. Faced with changes in coal quality, fluctuations in load, adjustments in steam demand, and environmental regulations, on-site operators need to monitor the systems continuously and make frequent adjustments. This not only tests their operational experience but also places higher demands on system coordination and response speed. How to achieve greater coordination among multiple systems, more stable key parameters, and reduced manual intervention while ensuring safety and stability is an important challenge in the intelligent upgrading of power plants in chemical enterprises. Taking into account the operational characteristics of the Aowei Qianyuan Power Plant, Quanying Technology has carried out an intelligent upgrade of the existing thermoelectric operation system based on the ADMC thermoelectric intelligent control system. The project completed the integration of on-site data and the upgrade of the control channels, enabling the ADMC system to obtain in real time the operation data from boilers, turbines, environmental protection equipment, and auxiliary devices, while also allowing optimized control commands to be safely sent back to the existing DCS system. At the same time, the project completed the upgrade of the DCS interface and logical protection of the equipment in question; by fully retaining the existing safety protection system, it enabled the ADMC system to connect stably to the field control system and to participate in the automatic regulation and coordinated control of key equipment. At the application level, the project has simultaneously upgraded the ADMC intelligent control software, the thermoelectric cloud platform, the digital dashboard, the alarm management system, and the mobile app; it has also added functions for denitration, deoxygenated feedwater, waste heat backpressure power generation systems, as well as remote monitoring displays for automatic operation rates. Through these functions, operators and managers can more conveniently and intuitively understand the status of key equipment, system operation trends, abnormal alarms, and the effectiveness of automatic control. Through this upgrade, the ADMC system integrates various components such as boilers, steam turbines, deoxygenated feedwater systems, denitration units, and in-furnace desulfurization systems into a unified intelligent control framework, acting as an \"intelligent control brain\" added on top of the existing DCS system. It does not merely monitor and display production data; rather, based on real-time operating conditions, it participates in making operational decisions, optimizing parameters, and issuing control commands, thereby enabling the operation of power plants to shift from single-point manual adjustment to coordinated control across the entire system. During the project verification phase, the two parties conducted comparisons using both \"manual operation\" and \"system automatic operation\" modes to assess the automatic control performance after the ADMC was put into use. Based on the acceptance results, the automatic operation rate of all devices within the ADMC intelligent control system is above 95%, meeting the requirements of the technical agreement. Among them, multiple boiler, turbine, and auxiliary equipment control systems achieved near 100% automatic operation during the verification period, enabling the system to continuously and stably participate in on-site control. More importantly, automatic operation requires not only being able to start it, but also being able to control it steadily. By comparing \"manual operation\" with \"intelligent control (automatic system operation)\\", it was found that after the ADMC system was put into use, key parameters such as main steam pressure, main steam temperature, air chamber pressure, furnace negative pressure, drum liquid level, and bed temperature achieved a more concentrated and stable control level compared to manual operation. Taking the main steam pressure as an example, during the optimization period, the control range for the main steam pressure of Boilers #1 and #2 was between 8.7 MPa and 9.4 MPa, while that for Boiler #4 was between 8.9 MPa and 9.6 MPa; the fluctuation range was further reduced compared to the manual operation phase. Key parameters such as main steam temperature, furnace negative pressure, and drum level showed a similar trend, demonstrating the ADMC system’s ability to maintain stable control over these critical parameters under complex operating conditions. In terms of operation mode, the approval of the ADMC project at Aowei Qianyuan Power Plant signifies not only the delivery of a complete system but also an upgrade in the logic of thermal power operation: the tasks that previously relied heavily on the judgment and manual adjustments of operators are gradually being replaced by an operation mode in which the ADMC intelligent control system carries out continuous monitoring, intelligent decision-making, and automatic adjustments. Operators can be freed from high-frequency repetitive tasks, allowing them to devote more effort to higher-value activities such as condition analysis, anomaly handling, and operational optimization. For the power systems of chemical enterprises, thermoelectric operation is often not an isolated process; rather, it is highly integrated with the main production units, utility systems, environmental protection systems, and energy management. The successful acceptance of the Aowei Qianyuan project has verified the adaptability of Quanying ADMC in scenarios involving multiple boilers, multiple turbines, and multiple systems working together. It also serves as a reference example for similar chemical enterprises aiming to upgrade their power systems intelligently.