BURNER FOR COMBUSTION CHAMBER OF GAS TURBINE POWER PLANT, COMBUSTION CHAMBER OF GAS TURBINE POWER PLANT CONTAINING SUCH BURNER, AND GAS TURBINE POWER PLANT CONTAINING SUCH COMBUSTION CHAMBER Russian patent published in 2021 - IPC F23R3/34 

FIELD: energy industry.

SUBSTANCE: tubular combustion chamber for a gas turbine has an axis and contains sequentially first burner (30), first combustion space (34), second burner, second combustion space, transition tube, while first burner (30) has axis corresponding to the main axial direction of air/gas and contains: inlet (32), to which compressed air is supplied, outlet (33) facing combustion space (34), tube (35) with a shape of a poorly streamlined body passing along the axis and having part (36) with end (37) located downstream, at least one fuel injector (38, 39) for injecting fuel in air flow, annular cavity (40) between at least part (36) of the tube located downstream and case (41), vortex generator (43) for generating axial vortex air flow or flow of air and fuel mixture in annular cavity (40). Burner (30) additionally contains at least one spark generator (45) at the end (37) of the tube, wherein case (41) contains part (46) located downstream made with the possibility of connection to the combustion space and having V-shaped expanding shape, while end (37) of the tube is recessed along the axis relatively to end (47) of part (46) of the outer case located downstream. Spark generator (45) protrudes along the axis from end (37) of the tube, wherein end (37) of the tube is provided with temperature sensor and/or pressure sensor and/or flame sensor.

EFFECT: invention allows for preventing hot gas leak and increasing service life of the spark generator.

6 cl, 6 dwg