Foshan Testing Institute, a scientific research project officially put into use to help save energy and reduce emissions

[ Instrument Network Instrument Development ] In September 2018, Foshan Testing Institute cooperated with a boiler engineering company in Foshan City, and applied for the scientific research project - "A gas-fired boiler combustion optimization control system based on oxygen correction" in 10 months. After that, the design and engineering application of the gas-fired boiler combustion optimization control system based on oxygen correction have been basically realized.
General control system main cabinet appearance
Control cabinet interior
With the gradual promotion of natural gas clean fuels nationwide, the number of natural gas boilers is also increasing dramatically. How to improve the thermal efficiency of boilers is a major event in energy conservation and emission reduction. The efficient combustion and optimal control of natural gas burners are important factors. The gas-fired boiler combustion optimization control system developed by Foshan Testing Institute based on oxygen calibration has a control loop for correcting the air supply volume of the flue gas oxygen content.
When the oxygen content of the flue gas increases beyond the set value, the output of the PID regulator is decremented through the feedback loop, thereby reducing the output frequency of the inverter, reducing the fan speed, and reducing the air supply amount. Conversely, when the oxygen content of the flue gas decreases below the set value, the output of the PID regulator is increased by the feedback loop, thereby increasing the output frequency of the inverter, increasing the fan speed, increasing the air supply volume, and improving the flue gas content. Oxygen content.
The system can be applied to almost all burners of industrial gas boilers, maximizing the best combustion efficiency on the combustion side, reducing gas waste and power consumption, reducing the user's energy use costs, and generating larger The economic benefits simultaneously reduce nitrogen oxide emissions and achieve environmental protection. The Foshan Testing Institute will continue to use the system to collect more boiler-related data and enrich project acceptance data.

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