METHOD OF PREPARING GASEOUS FUEL AND AIR BEFORE FEEDING INTO FUEL-BURNING DEVICE Russian patent published in 2020 - IPC F23D14/68 F23C99/00 

FIELD: chemistry.

SUBSTANCE: invention relates to methods of treating hydrocarbon fuel used in various power plants. Method for preparation of gaseous fuel and air before feeding into fuel-burning device consists in activation of gaseous fuel in ioniser of gaseous fuel installed on pipeline for supply of gaseous fuel to fuel-burning device, air is activated in an air ioniser, which is installed on the pipeline of air supply to the fuel-burning device, wherein activation of gaseous fuel and air, respectively in the ioniser of gaseous fuel and air ioniser, is carried out by exposing fuel and air to corona electric discharge, wherein corona discharge is created by dischargers, and supply of voltage to terminals of electrodes of gaseous fuel ionisers and corona discharge are created between dischargers electrodes, wherein supply of voltage to terminals of electrodes of ionizers of gaseous fuel and air is carried out from two high-voltage sources, one of which is connected to terminals of electrodes of gaseous fuel ioniser discharger, and the other is on terminals of electrodes of air ionizer discharger, at that on terminals of electrodes of gaseous fuel and air ionisers dischargers different voltages are supplied, which are controlled during formation of corona discharges, respectively in ionisers of gaseous fuel and air, from condition of obtaining maximum currents of flame ionisation, wherein voltage generated by high voltage sources at terminals of discharger electrodes in gaseous fuel and air ionisers is performed by control processor connected to flame ionisation sensor. Prior to feeding into fuel-firing device, gaseous fuel and air are activated by creation of magnetic field in fuel ionisers and air magnetic systems, which are made in ionisers in the form of series-installed ring-shaped magnets facing each other with unlike poles with the possibility of polarization of fuel and air molecules in the working space, wherein annular magnets are arranged in ionizers in flow cylindrical chambers of dielectric material with minimum clearance between end surfaces of magnets to create maximum possible induction in gap between surfaces of magnets.

EFFECT: invention allows reducing fuel consumption with simultaneous reduction of harmful emissions of combustion products from power plants due to higher efficiency of fuel preparation by electromagnetic ionization of hydrocarbon fuel and air.

1 cl, 1 dwg