METHOD OF AUTOMATIC CONTROL OF COMBUSTION PROCESS IN THERMAL UNIT Russian patent published in 2015 - IPC F23N1/04 

FIELD: heating.

SUBSTANCE: method of automatic control of the combustion process in the thermal unit, which comprises for all the loads by using the sensors of measurement of the fuel and air flow, the gas analysers of measurement of concentration of oxides of nitrogen and carbon in the flue gases exhaust in the atmosphere, the determining of total allowable conditional toxicity of emissions, determination of the difference of exceeding of conditional toxicity of emissions over its allowable standard value and use of this difference as a correction signal. In the present method using an additional sensor the flow of water in the form of liquid or steam is measured, the oxygen concentration is measured with an additional gas analyser in the flue gases exhaust into the atmosphere, the concentration of benzopyrene is calculated using an additional device, and the total allowable conditional toxicity of emissions is determined, taking into account the effect of the above parameters.

EFFECT: invention enables to reduce the total toxicity of emissions of air pollutants in exhaust flue gases.

1 dwg