METHOD FOR FLARE COMBUSTION OF A FUEL-AIR MIXTURE AND DEVICE FOR REALIZING A METHOD USING AN ELECTRO-IONIZATION IGNITER Russian patent published in 2020 - IPC F23Q5/00 F23D1/00 

FIELD: power engineering.

SUBSTANCE: invention relates to power engineering and can be used at thermal power plants, in boiler houses, etc. to provide self-ignition of boiler from cold state. Device for ignition and maintenance of combustion of fuel-air mixture includes housing divided into mixing area of fuel-air mixture and area of ignition chamber, unit of rod electrodes for generation of electric discharge, fuel pipeline and air pipeline, ignition zone of fuel-and-air mixture, zone of fuel-air mixture combustion. Ignition chamber area is divided into two parts: an accelerating section with low heat capacity and heat transfer of structural elements, made without muffling elements, and an accumulating section with high heat capacity of structural elements, made with a muffle, fuel line complete with electrode unit, tangentially connected to zone between sections with low and high heat capacity, two secondary air pipelines tangentially connected to sections with low and high heat capacity and providing movement of ignition area from section with low heat capacity to section with high heat capacity due to change of ratio of forward pressure in pipelines of secondary air. Fuel pipelines complete with electrode unit are two, each of which is tangentially connected separately to sections with low and high heat capacity, providing the possibility of movement of the area of ignition and burning of the flame from the section with low heat capacity to the section with high heat capacity due to ignition and disconnection of electric discharge on separate electrode units on the corresponding sections.

EFFECT: invention allows igniting fuel mixture with high content of moisture and low level of volatile components, as well as water-coal fuel mixture with minimum specific energy costs and to minimize mechanical carryover at the moment of kindling to safe level and to ensure stabilization of combustion of coal-dust and water-coal fuel mixtures with low reactivity.

5 cl, 2 dwg