In thermal power plants, the stability of the gas source system is directly related to the distributed control system（DCS）Ensure the safe operation of critical equipment. If the moisture, oil stains, and impurities in compressed air are not effectively treated, it will lead to jamming of pneumatic actuators, corrosion of instruments, and even non-stop accidents of the unit. Wuxi Xingzhou Instrument Co., Ltd. launchedXZKC-8000The series of intelligent air purification devices, with its fourth generation programmable intelligent technology, have become an innovative solution for power plant air source control.

Accurate perception: building a real-time monitoring network

XZKC-8000The series achieves real-time monitoring of gas source quality by integrating high-precision temperature and humidity sensors and fuzzy control algorithms. Its core microcontroller collects data on gas temperature, humidity, and water level inside the pipeline every second, and usesLCDThe LCD screen displays intuitively. For example, when the dew point temperature of compressed air is detected to be close to the ambient temperature threshold, the system will immediately start the drainage program to avoid moisture crystallization and blockage in the pneumatic valve body. The application case of a certain power plant shows that the device reduces the failure rate of pneumatic control valves72%Annual reduction in downtime losses exceeding200Ten thousand yuan.

Intelligent decision-making: dynamic optimization of drainage strategy

The traditional drainage method uses fixed time intervals to control the opening and closing of solenoid valves, which can easily lead to“No water empty discharge”or“Water accumulation overload”.XZKC-8000Series by water level-A time dual dimensional control model is used to dynamically optimize drainage strategies: when the water level sensor detects that the accumulated water in the pipeline reaches a preset threshold, the system automatically calculates the optimal drainage duration and closes the valve immediately after the drainage is completed. this kind of“On-demand drainage”Compared to traditional timed drainage methods, this mode can save costs30%The above compressed air loss.

Distributed Control: Seamless Integration with Industrial Networks

based onRS485/MODBUSThe modular design of the protocol enables multiple purification devices to form a distributed control network. Each device serves as an independent control station, capable of both local autonomous operation and communication with othersDCSSeamless integration of the system. In the renovation project of Guodian Shuangliao Power Plant,12The intelligent purification device is interconnected through industrial Ethernet to achieve centralized monitoring and fault warning of gas source quality data. When a device experiences abnormal drainage, the system will automatically push alarm information to the operation and maintenance terminal, and upload relevant data to the cloud for in-depth analysis.

Closed loop governance: full process management from monitoring to verification

The new generation of intelligent devices has broken through the boundaries of traditional purification functions and is moving towards“monitor-governance-verify”Evolution of closed-loop system. Partial product integrationCMAThe certified third-party detection module can automatically collect gas samples for oil and particle content analysis after drainage, and generate data that meets the requirementsISO8573-1Standard testing report. In addition,AIThe introduction of algorithms enables devices to have self-learning capabilities, predict filter life based on historical data, and plan maintenance cycles in advance.

Energy conservation and environmental protection: assistance“carbon peaking and carbon neutrality”goal achievement

in“carbon peaking and carbon neutrality”Driven by objectives,XZKC-8000The series helps power generation companies achieve a win-win situation of economic and environmental benefits by reducing compressed air loss, extending equipment life, and lowering operation and maintenance costs. Its modular design supports specifications such as single circuit, double circuit, and four circuit, with a protection level of up toIP65, can be in-15℃to65℃Stable operation under harsh working conditions. with5G+With the integration of industrial Internet technology, the future gas source control system will“Unmanned operation, remote diagnosis, predictive maintenance”The direction continues to evolve, injecting new momentum into the high-quality development of the energy industry.