FIELD: power industry.
SUBSTANCE: steam boiler with twin swirling-type furnace includes fuel feeder, primary air system and gas-overflow opening with annular secondary air nozzle directed to swirling-type furnace opposite to the exit flow; at that, boiler is provided with annular swirler made in the form of annular channel - secondary air nozzle creating the restricting air screen, formed with additional shell mounted along the perimetre of inner surface of gas-overflow opening housing towards swirling-type furnace and connected by means of additional distributing air channel to tangentially mounted air-blast supply connection pipe.
EFFECT: creation of conditions for more complete combustion of fuel, prevention of accumulation of not fully burnt fuel particles and possibility of load control.
7 cl, 8 dwg
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|---|---|---|---|
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|
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| METHOD OF FUEL COMBUSTION IN SWIRLING-TYPE FURNACE | 2009 |
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RU2372555C2 |
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| SECONDARY AIR SUPPLY PROCESS AND FURNACE PLANT (ALTERNATIVES) | 2002 |
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RU2230980C2 |
| LAYER BOILER WITH VERTICAL SWIRLING-TYPE FURNACE | 2015 |
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RU2627757C2 |
