Patent US4049299A successfully refreshed from Google Patents.
US4049299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-polluting power plant using compressors and gas turbines
Assignee: Bpifrance Financement SA
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Filing: 1975-11-20
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Granted: 1977-09-20
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Expires: 1995-11-20
Abstract
Abstract An electric power generating plant includes at least two compressors having matched operating characteristics, alternators and turbines and boilers having combustion chambers connected to the turbines. The compressors, alternators and turbines are operatively interconnected such that during no power demand periods the compressors are driven in a series arrangement by the alternators, functioning as electric motors, to store a supply of pressurized air in an air storage tank, and during normal and peak power demand periods the turbines, supplied by the combustion chambers of the boilers, drive the compressors, functioning in parallel relationship, which feed respective ones of the boilers with enriched air and a gas recycled after expansion by one of the turbines. During the normal and peak power demand periods pressurized air previously stored in the air storage tank by the compressors is fed to the combustion chamber of one of the boilers.
Inventors
- 👤 Georges Alfred Rigollot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:35
CPC Classifications
F; F01; F01K; F01K23/00; F01K23/02; F01K23/06; F01K23/10; F02; F02C; F02C6/00; F02C6/14; F02C6/16; Y; Y02; Y02E; Y02E60/00; Y02E60/16
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
297 words
A versatile electric power generating plant operative during normal and peak power demand periods and also during no power demand periods comprising in combination: first and second continuously operating compressors having matched operating characteristics; supply means for selectively supplying said first compressor during normal and peak power demand periods with recycled combusted gases for pressurizing same; means for selectively supplying said second compressor also during normal and peak power demand periods with air for pressurizing same; first and second boilers having first and second combustion chambers, respectively, supplied with pressurized recycle combusted gases and air from said first and second compressors, respectively, during normal and peak power demand periods; an air storage tank supplied with pressurized air to store the same, means for connecting said second compressor in series with said first compressor and said first compressor with said air storage tank for pressurizing said tank with air during no power demand periods; means for supplying pressurized air from said air storage tank to said first combustion chamber during normal and peak power demand periods; first and second turbines respectively connected to the outputs from said first and second combustion chambers; first and second alternators respectively connected to said first and second turbines for drive thereby during normal and peak power demand periods, at least said first compressor, turbine and alternator being coupled to a common shaft for drive of said first compressor by said first alternator during no power demand periods and for drive of said first compressor and said first alternator by said first turbine during normal and peak power demand periods; and recycle means for receiving at least a portion of the output of said first turbine for supply of a part of said recycled gas by said supply means to said first compressor.
Claim 2
Dependent Claim
297 words
A versatile electric power generating plant operative during normal and peak power demand periods and also during no power demand periods comprising in combination: first and second continuously operating compressors having matched operating characteristics; supply means for selectively supplying said first compressor during normal and peak power demand periods with recycled combusted gases for pressurizing same; means for selectively supplying said second compressor also during normal and peak power demand periods with air for pressurizing same; first and second boilers having first and second combustion chambers, respectively, supplied with pressurized recycle combusted gases and air from said first and second compressors, respectively, during normal and peak power demand periods; an air storage tank supplied with pressurized air to store the same, means for connecting said second compressor in series with said first compressor and said first compressor with said air storage tank for pressurizing said tank with air during no power demand periods; means for supplying pressurized air from said air storage tank to said first combustion chamber during normal and peak power demand periods; first and second turbines respectively connected to the outputs from said first and second combustion chambers; first and second alternators respectively connected to said first and second turbines for drive thereby during normal and peak power demand periods, at least said first compressor, turbine and alternator being coupled to a common shaft for drive of said first compressor by said first alternator during no power demand periods and for drive of said first compressor and said first alternator by said first turbine during normal and peak power demand periods; and recycle means for receiving at least a portion of the output of said first turbine for supply of a part of said recycled gas by said supply means to said first compressor.
Claim 3
Dependent Claim
22 words
A power generating plant according to claim 1, wherein said second compressor is coupled to the same shaft as said first compressor.
Claim 4
Dependent Claim
43 words
A power generating plant according to claim 2, wherein a distillation unit is connected between said second compressor and said second combustion chamber, said distillation unit being adapted to supply enriched air to said second combustion chamber and nitrogen to said first compressor.
Claim 5
Dependent Claim
38 words
A power generating plant according to claim 1, wherein said second turbine and alternator are coupled to a common shaft different from the shaft to which said first compressor, said first turbine and said first alternator are connected.
Claim 6
Dependent Claim
43 words
A power generator according to claim 4, wherein said second boiler is a steam boiler adapted to generate steam in its combustion chamber for supply to said second turbine and for thereby driving said second alternator during normal and peak power demand periods.
Claim 7
Dependent Claim
43 words
A power generating plant according to claim 1, wherein a third turbine is provided and is connected to said first turbine so as to receive therefrom a portion of the output thereof, the remainder of said output being supplied to said recycle means.
Claim 8
Dependent Claim
27 words
A power generating plant according to claim 6, wherein said third turbine is coupled to the same shaft as that to which said first turbine is coupled.
Claim 9
Dependent Claim
40 words
A power generating plant according to claim 4, wherein a third turbine is provided and is connected to said second turbine so as to receive gases therefrom and to expand said gases and then discharge same through a chimney stack.
Claim 10
Dependent Claim
59 words
A power generating plant according to claim 1, wherein said recycle means comprises a waste steam boiler adapted to receive said portion of the output from said first turbine, a heat exchanger and a liquid cooled scrubber operatively connected to said heat exchanger for cooling the gases therein and for supplying the thus cooled gases to said first compressor.
Claim 11
Dependent Claim
22 words
A power generating plant according to claim 9, wherein steam generated in said waste boiler is supplied to said first combustion chamber.
Claim 12
Dependent Claim
62 words
A power generating plant according to claim 10, including means for supplying said first boiler with fuel, with steam from said waste boiler and with said recycled gas, means for supplying said second boiler, in addition to said air compressed in said second compressor, with fuel for generating steam therein for the driving of said second turbine and thereby said second alternator.
Claim 13
Dependent Claim
26 words
A power generating plant according to claim 4, wherein said second compressor is coupled to the same shaft as said second alternator and said second turbine.
Claim 14
Dependent Claim
61 words
A power generating plant according to claim 1, wherein said first and second alternators are connected in parallel to an external electric power source and are adapted to receive electric power therefrom for the driving of the respective compressors associated therewith during no power demand periods and to supply power to said power source during normal and peak power demand periods.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |