HIGH-PRESSURE STEAM-AND-GAS GENERATOR WITH HEAT RATING IGNITION Russian patent published in 2016 - IPC E21B36/02 F23R3/34 

FIELD: mining.

SUBSTANCE: group of inventions relates to steam-and-gas generators for use in the bottom of the wells. Steam-and-gas generator comprises a body forming the main combustion chamber, nozzle case connected in the housing, heat insulation, nozzle assembly with preliminary air-fuel mixing, air inlet premixer, fuel element, hot surface igniter. Besides, steam-and-gas generator comprises a fuel injector burner and Jet extension. Housing includes inlet fuel for receiving a stream of fuel and air inlet to receive air flow. Nozzle case comprises chamber initial combustion. Heat insulation is made inside the chamber of initial combustion. Nozzle assembly with preliminary air-fuel mixing is made with possibility of dosing supply of fuel-air mixture in the chamber of initial combustion. Air inlet premixing is made with possibility of directing part of air flow, received from air inlet in the nozzle assembly with preliminary air-fuel mixing. Fuel element is made with possibility of directing the flow of fuel from fuel inlet nozzle assembly with preliminary air-fuel mixing. Hot surface igniter is made with possibility of heating ignition and fuel-air mixture in the chamber combustion to create initial non-stationary emission passing in main combustion chamber. Fuel injector is made with possibility of dosing supply of the rest fuel in main combustion chamber. Burner has the possibility of dosing supply of air remaining in the main combustion chamber. Flow of fuel from fuel injector and air flow of the burner ignited in the main combustion chamber by means of non-stationary emission from the chamber of initial combustion. Jet extension is installed to prevent fuel inlet of the fuel nozzle chamber initial combustion.

EFFECT: technical result is higher efficiency of fuel combustion system.

21 cl, 5 dwg