Cogeneration system for a boiler
OwnerGiovanni D'Arienzoinventor
Life of this patent
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Abstract
Cogeneration system (200, 300) comprising: a boiler (201, 301) able to heat water for domestic use; a combustor (201a, 301a) placed into the boiler; a compressor (204, 304); a heat exchanger (202, 302) for the exchange of thermal energy between the combustion fumes generated in the combustor (201a, 301a) and a fluid coming from the compressor (204, 304); a gas turbine (203, 303); a current generator (205, 305) and a current converter (206, 306) able to produce electrical energy; a main fumes/water exchanger (207, 307) able to recover thermal energy. The cogeneration system (200, 300) comprises also a by-pass valve (210, 310) configured to adjust the flow of fluid entering the gas turbine (203, 303).
Claims3
A cogeneration (200, 300) comprising:
- a boiler (201, 301) to heat water for domestic use;
- a combustor (201a, 301a) of liquid or gaseous fuel, placed into the boiler (201, 301) from which combustion fumes come out;
- a compressor (204, 304) for a gaseous fluid;
- a heat exchanger (202, 302) to exchange thermal energy between combustion fumes generated in the combustor (201a, 301a) and a fluid coming from the compressor (104, 204, 304);
- a gas turbine (203, 303) receiving the fluid compressed and heated from the heat exchanger (202, 302);
- a current generator (205, 305) and a current converter (206, 306) connected to the gas turbine (203, 303) to generate electrical energy;
- a main fumes/water exchanger (207, 307) placed after the heat exchanger (202, 302) to recover thermal energy between fumes generated in the combustor (201a, 301a) and water;
- a by-pass valve (210, 310) placed before the turbine (203, 303), configured to adjust the flow rate of a portion of fluid entering the gas turbine (203, 303) and the remaining flow of the fluid to be redirected;
- wherein in comprising an additional heat exchanger (209, 309) arranged to recover remaining thermal energy of the portion of the fluid sent out from the turbine (203, 3030) and of the remaining flow of the fluid redirected by the by-pass valve (210, 310) and arranged to preheat water entering in the main heat exchanger (207, 307).
Dependencies are inferred from the claim text.