BOILER-TURBINE AIR POWER PLANT Russian patent published in 2024 - IPC F23L15/00 F23L15/02 F23L15/04 

FIELD: heat power engineering.

SUBSTANCE: boiler-and-turbine air power plant comprises air boiler 1 with furnace 2, compressed air heater (AH) 3, intermediate air heater (IAH) 15 and compressed air bypass heater (BH) 13 arranged along the flue gas path behind AH 3 and communicated at the air outlet with AH 3 by air, high and low pressure air turbines (HPT 5 and LPT 6), communicated with each other through IAH 15 path by air, regenerative compressed air heater (RAH) 7, connected at the low pressure (l.p.) heating air inlet with LPT 6 air outlet, at the compressed air outlet – with AH 3 air inlet, compressor 8 communicated at the compressed air outlet with the compressed air inlets of RAH 7 and BH 13, and with the atmosphere at the air inlet. BH 13 is communicated with atmosphere at flue gas outlet, RAH 7 at l.p. air outlet – with heat consumer or with atmosphere. HPT 5 at the compressed air inlet is communicated with AH 3 outlet by air, and LPT 6 is equipped at the air outlet with three-way distributing flap 14 with two air outlets communicated with RAH 7 inlets for l.p. heating air and boiler furnace 2 by boiler air, made with possibility of air flow rate control to furnace 2 under condition of maintenance of temperature of compressed air behind RAH 7 and BH 13 at the same level. In addition, an alternative embodiment is also provided, according to which the LPT is made with an additional air outlet from the intermediate area of the flow section, which is communicated with the inlet of boiler furnace 2 via boiler air, and is equipped with devices for controlling air supply to furnace 2 according to the specified condition – a diaphragm and an adjustable damper.

EFFECT: invention is most effective for use at facilities of local and distributed thermal power engineering of low power, operating on local types of fuel, for example, such as biofuel, synthesis gas produced from organic wastes, associated gas at oil and gas fields, etc.

2 cl, 2 dwg