US4133567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined cycle electric power generating system with improvement
Assignee: Texaco Inc
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Filing: 1977-05-11
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Granted: 1979-01-09
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Expires: 1997-05-11
Abstract
Abstract A combined cycle electric power generating system which drives two electric power generators at a constant speed. It employs a gas turbine to drive one of the generators and a steam turbine to drive the other. There is a combustor that supplies the gas to drive the gas turbine and there is an air compressor that feeds input air to mix with fuel into the combustor. The compressor is driven by the gas turbine. The exhaust from the gas turbine delivers heat to make steam for the steam turbine. And, there is means for throttling the inlet air to the compressor so that the whole system may be run at greatly reduced load without creating inefficient operation.
Inventors
- 👤 Rodney McGann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:32
CPC Classifications
F; F01; F01K; F01K23/00; F01K23/02; F01K23/06; F01K23/10; F01K23/064; F02; F02C; F02C9/00; F02C9/16; F02C9/20; Y; Y02; Y02E; Y02E20/00; Y02E20/16; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
122 words
In combination with a combined cycle electric power generating system including a constant speed gas turbine for driving a first electric power generator, a combustor for supplying high temperature gas to drive said gas turbine, a compressor driven by said gas turbine for compressing air to be delivered to said combustor, means for delivering fuel to said combustor with said compressed air, a steam turbine for driving a second electric power generator, a boiler for supplying steam to drive said steam turbine, and means for connecting the outlet from said gas turbine to said boiler for supplying heat thereto, the improvement comprising means for throttling the inlet of said compressor for maintaining efficient operation at low load on said electric power generators.
Claim 2
Dependent Claim
122 words
In combination with a combined cycle electric power generating system including a constant speed gas turbine for driving a first electric power generator, a combustor for supplying high temperature gas to drive said gas turbine, a compressor driven by said gas turbine for compressing air to be delivered to said combustor, means for delivering fuel to said combustor with said compressed air, a steam turbine for driving a second electric power generator, a boiler for supplying steam to drive said steam turbine, and means for connecting the outlet from said gas turbine to said boiler for supplying heat thereto, the improvement comprising means for throttling the inlet of said compressor for maintaining efficient operation at low load on said electric power generators.
Claim 3
Dependent Claim
18 words
The invention according to claim 1, wherein said means for throttling, comprises valve means integral with said inlet.
Claim 4
Dependent Claim
25 words
The invention according to claim 2, wherein said valve means, comprises louvers for controlling the pressure drop through said inlet with a minimum of turbulence.
Claim 5
Dependent Claim
21 words
The invention according to claim 3, wherein said valve means, also comprises stop means for preventing the closing of said inlet.
Claim 6
Dependent Claim
205 words
In combination, a fuel-gas generation system including means for generating synthesis gas from a hydrocarbonaceous feed, means for removing free carbon from said synthesis gas, means for purifying said carbon free synthesis gas, a combined cycle electric power generating system integrated with said fuel-gas generation system, said combined cycle system comprising a constant speed gas turbine for driving a first electric power generator, a combustor for burning said pure synthesis gas to supply high temperature gas to drive said gas turbine, a compressor driven by said gas turbine for compressing air to be delivered to said synthesis gas generating means and to said combustor, said compressor having an air inlet, means for delivering said purified synthesis gas to said combustor with said compressed air, a steam turbine for driving a second electric power generator at a constant speed, a pair of boilers for supplying steam to drive said steam turbine, one of said boilers being connected to the outlet from said synthesis gas generating means and the other of said boilers being connected to the outlet from said gas turbine, and means for throttling said air inlet for controlling said combination whereby good efficiency may be maintained at reduced load on said electric power generators.
Claim 7
Dependent Claim
205 words
In combination, a fuel-gas generation system including means for generating synthesis gas from a hydrocarbonaceous feed, means for removing free carbon from said synthesis gas, means for purifying said carbon free synthesis gas, a combined cycle electric power generating system integrated with said fuel-gas generation system, said combined cycle system comprising a constant speed gas turbine for driving a first electric power generator, a combustor for burning said pure synthesis gas to supply high temperature gas to drive said gas turbine, a compressor driven by said gas turbine for compressing air to be delivered to said synthesis gas generating means and to said combustor, said compressor having an air inlet, means for delivering said purified synthesis gas to said combustor with said compressed air, a steam turbine for driving a second electric power generator at a constant speed, a pair of boilers for supplying steam to drive said steam turbine, one of said boilers being connected to the outlet from said synthesis gas generating means and the other of said boilers being connected to the outlet from said gas turbine, and means for throttling said air inlet for controlling said combination whereby good efficiency may be maintained at reduced load on said electric power generators.
Claim 8
Dependent Claim
19 words
The invention according to claim 5, wherein said means for throttling, comprises valve means integral with said air inlet.
Claim 9
Dependent Claim
26 words
The invention according to claim 6, wherein said valve means comprises louvers for controlling the pressure drop through said air inlet with a minimum of turbulence.
Claim 10
Dependent Claim
23 words
The invention according to claim 7, wherein said valve means also comprises stop means for preventing the complete closing of said air inlet.
References Cited (Backward Citations)
US3879616A
Cited
US4047005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-08 | 1982-07-10 | 1983-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-08 | 1986-07-10 | 1987-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-08 | 1990-07-10 | 1991-01-09 | $7700.00 | Window Closed / Lapsed |