The core working process of a thermal power plant can be divided into four links:
1. Fuel processing and combustion to produce steam
The fuel (coal/natural gas) enters the boiler for combustion through the crushing and transportation system, heating the water into high-temperature and high-pressure steam. At this stage, the Emerson OVATION system ensures maximum combustion efficiency and reduces NOx emissions through combustion optimization control (such as dynamic adjustment of the air-coal ratio) and boiler safety interlock (BMS).
2. Steam-driven power generation
The steam drives the turbine to rotate, driving the generator to convert mechanical energy into electrical energy. OVATION's coordinated control system (CCS) balances the boiler and turbine loads in real time, quickly responds to the peak-shaving demand of the power grid, and monitors turbine vibration through the TSI module to prevent mechanical failure.
3. Power output and environmental control
The electric energy is connected to the power grid after being boosted by the substation. OVATION simultaneously integrates the desulfurization and denitrification (FGD/SCR) system, accurately controls the amount of ammonia injection and slurry circulation, ensures that SO₂/NOx emissions meet the standards, and optimizes energy consumption in combination with carbon capture devices.
4. Intelligent monitoring and maintenance
The entire plant pipeline system relies on motors, pumps and online instruments (pressure/temperature transmitters) to maintain operation. OVATION uses edge computing and AI diagnosis to achieve predictive maintenance of equipment (such as pump bearing life analysis), reduce unplanned downtime, and reduce coal consumption for power supply by 3-5%.
Emerson OVATION uses a highly reliable DCS architecture and advanced algorithms to run through the entire process of "fuel-steam-electricity" of thermal power, promoting the transformation of power plants to high efficiency, low carbon and intelligent. The annual emission reduction of a single unit can reach thousands of tons, and the peak-shaving response speed is increased by more than 20%.