SU1368454A1 - Steam-gas unit - Google Patents

Abstract

The invention improves the efficiency of the installation and reduces harmful emissions into the atmosphere. Thermogenerator 13 is connected through the heating medium to the gas-air duct and communicates at the outlet through the resulting gases with gas cleaning apparatuses 4, and through semi-coke to the furnace 3. In the thermogenerator, solid fuel is sublimated. The combustion products of the steam generator are burned in the combustion chamber 5. In the combustion chamber, the gases are burned at t-re, limited by the allowable t-of the turbine metal, which is significantly higher than the t in the furnace limited by the conditions for the formation of sulfur oxides and nitrogen. 1 hp f-ly, 1 ill. with S (L

Description

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The invention relates to heat, energy and can be used | In steam-gas installations with solid fuel boilers.

The purpose of the invention is to increase the efficiency of the installation and reduce harmful emissions into the atmosphere. : The drawing shows a steam-gas installation.

The installation contains a compressor 1 included in the gas-air duct, a high-pressure steam generator 2 with a furnace 3, gas cleaning devices 4, a combustion chamber 5, a gas turbine 6 and a heat exchanger-utilizer 7. The steam generator 2 is thermodynamically connected through the steam generating surfaces 8 to a steam turbine circuit, includes a steam turbine 9, a condenser 10, a pump 11 and regenerative heaters 12. The installation is equipped with a thermo-generator 13 for dry sublimation of solid fuel, included

and sorbent firebox 3 steam generators 2, 1, similar in composition to general apparatuses

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the developed semi-coke falls and the gases

4 gas scrubbing and then into the combustion chamber 5. The combustion products enter the gas turbine 6, driving compressor 1 and an electric generator.

In the steam turbine circuit, the steam formed in the surfaces 8 is fed to the steam turbine 9. The exhaust steam is condensed in the condenser 10, from which the condensate is returned by the pump 1 1; ay through the regenerative heaters 12 in the surface 8 of the steam generator 2,

Since in the combustion chamber 5 the resulting gases are burned at a temperature 2Q limited by the allowable temperature of the metal of the turbine, which is significantly higher than the temperature in the furnace limited by the conditions for the formation of sulfur oxides and nitrogen,

in the gas-air path of the installation after 25 ovki raises.

steam generator 2. Thermogenerator 13 can be structurally combined with steam generator 2 and placed in the upper part of the latter. The shutter 14 serves to separate the thermogenerator 13 from the steam generator 2. The thermogenerator 13 communicates at the inlet with the solid fuel supply line 15, at the outlet of the resulting gases with gas cleaning devices 4, with coke 3 with the furnace 3 of the steam generator 2, the combustion chamber 5 is connected to compressor 1 through air pre-heating surfaces 16 placed in the fluidized bed of the furnace 3. Thermogenerator 13 is made with an expanding pipe 17 installed in its upper part. The vapor-gas installation works as follows.

The air compressed in compressor 1 is fed under the grate of the furnace 3 in an amount necessary for burning the semi-coke, and the rest of it is heated in surfaces 16, where the air cools the fluidized bed of the furnace 3, and is directed to the combustion chamber 5. In furnace 3, the incoming oxygen is fully utilized. Combustion products of steam generator 2 are fed to thermogenerator 13, where solid fuel and sorbent are also supplied via line 15.

In the thermoelectric generator 13, solid fuel is sublimated dryly, dry fuel is sublimated in the thermoelectric generator 13, and the burning of volatile combustible materials in the combustion chamber 5 reduces emissions of sulfur oxides, nitrogen and carbon monoxide to the atmosphere.

Claims (1)

Invention Formula five 0 five 0 five 1, a steam and gas installation on solid fuel containing a steam turbine circuit, a high-pressure steam generator thermodynamically associated with it; a torus with a furnace, included in the gas-air path with a compressor, gas cleaning devices, a combustion chamber and a gas turbine, as well as a solid fuel supply line, which, in order to improve efficiency and reduce harmful emissions into the atmosphere, the installation is additionally equipped with a dry sublimation thermal generator solid fuel included in the heating medium in the gas-air duct after the high-pressure steam generator and reported at the outlet through the resulting gases with gas cleaning apparatuses, and in semi-coke - with a firebox. 2, Installation pop. 1, which differs from the fact that the thermogenerator is made with an expanding pipe installed in its upper part, communicated at the outlet with the gas-air duct.