Patent US4052277A successfully refreshed from Google Patents.
Patent US6637207B2 successfully refreshed from Google Patents.
US6637207B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-storage power plant
Assignee: GE Vernova GmbH
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Filing: 2002-01-28
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Granted: 2003-10-28
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Expires: 2022-01-28
Abstract
Abstract The present invention relates to a gas-storage power plant, comprising a gas reservoir ( 8 ) in which a gas can be stored under pressure, a turbogroup ( 2 ) which has at least one turbine ( 3, 5 ), a gas-supply line ( 9 ) which leads from the gas reservoir ( 8 ) to the turbogroup ( 2 ), and a valve arrangement ( 12 ) which is arranged in the gas-supply line ( 9 ) and throttles a storage pressure (P S ) applied on the inlet side to a working pressure (P A ) by closed-loop and/or open-loop control. In order to improve the reliability of the valve arrangement ( 12 ), it has at least two control valves ( 13, 14 ) arranged in series. A leading first control valve ( 13 ) throttles the storage pressure (P S ) applied on the inlet side to an intermediate pressure (P Z ) by closed-loop or open-loop control. A subsequent second control valve ( 14 ) throttles the pressure (P Z ) applied on the inlet side to the working pressure (P A ) by closed-loop control.
Inventors
- 👤 Stephan Konezciny
- 👤 Franz Suter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:15
CPC Classifications
F; F02; F02C; F02C6/00; F02C6/14; F02C6/16; Y; Y02; Y02E; Y02E60/00; Y02E60/16; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
146 words
A gas-storage power plant, having a gas reservoir in which a gas can be stored under pressure, having a turbogroup which has at least one turbine, having a gas-supply line which leads from the gas reservoir to the turbogroup, and having a valve arrangement which is arranged in the gas-supply line and throttles a storage pressure (P S ) applied on the inlet side to a working pressure (P A ), by closed-loop and/or open-loop control, wherein the valve arrangement has at least two control valves arranged in series, having a leading first control valve for throttling the storage pressure (P S ) applied on the inlet side at the first control valve to an intermediate pressure (P Z ) and a further control valve for throttling a pressure applied on the inlet side at the further control valve to the working pressure (P A ).
Claim 2
Dependent Claim
146 words
A gas-storage power plant, having a gas reservoir in which a gas can be stored under pressure, having a turbogroup which has at least one turbine, having a gas-supply line which leads from the gas reservoir to the turbogroup, and having a valve arrangement which is arranged in the gas-supply line and throttles a storage pressure (P S ) applied on the inlet side to a working pressure (P A ), by closed-loop and/or open-loop control, wherein the valve arrangement has at least two control valves arranged in series, having a leading first control valve for throttling the storage pressure (P S ) applied on the inlet side at the first control valve to an intermediate pressure (P Z ) and a further control valve for throttling a pressure applied on the inlet side at the further control valve to the working pressure (P A ).
Claim 3
Dependent Claim
51 words
The gas-storage power plant as claimed in claim 1 , wherein the valve arrangement has two control valves arranged in series, and the pressure applied at the second control valve on the inlet side corresponds to the intermediate pressure (P Z ) at the outlet side of the first control valve.
Claim 4
Dependent Claim
76 words
The gas-storage power plant as claimed in claim 1 , wherein the valve arrangement has actuators for driving the control valves, the actuators each being connected to a control device which is interconnected in a feedback control circuit or a plurality of feedback control circuits for the purpose of feeding values of the storage pressure (P S ), of the intermediate pressure (P Z ) and/or of operating variables of the turbogroup to the control device.
Claim 5
Dependent Claim
27 words
The gas-storage power plant as claimed in claim 1 , wherein the first control valve and/or the further control valve is designed as a relieved single-seat valve.
Claim 6
Dependent Claim
26 words
The gas-storage power plant as claimed in claim 1 , wherein the first control valve and/or the further control valve is designed as a pilot-controlled valve.
Claim 7
Dependent Claim
32 words
The gas-storage power plant as claimed in claim 1 , wherein the valve arrangement has a bypass valve which is connected between the outlet of the first control valve and th turbogroup.
Claim 8
Dependent Claim
35 words
A method of operating a gas-storage power plant as claimed in claim 1 , wherein the first control valve is controlled in a closed-loop system for generating an essentially constant intermediate pressure (P Z ).
Claim 9
Dependent Claim
34 words
The method as claimed in claim 7 , wherein the first control valve is controlled in a closed-loop system as a function of a setpoint/actual-value deviation of a predetermined intermediate pressure (P Z ).
Claim 10
Dependent Claim
45 words
A method of operating a gas-storage power plant as claimed in claim 1 , wherein the first control valve is controlled in an open-loop system according to a predetermined valve-lift position, as a result of which a variable intermediate pressure (P Z ) is generated.
Claim 11
Dependent Claim
62 words
The method as claimed in claim 8 , wherein the second control valve is controlled in a closed-loop system by means of values of the output of the turbogroup and/or of the speed of the rotor of the turbogroup as command variables of a feedback control circuit, and the working pressure (P A ) is set in accordance with these command variables.
Claim 12
Dependent Claim
35 words
The method as claimed in claim 10 , wherein the second control valve is controlled in a closed-loop system as a function of a setpointlactual-value deviation of the currently required command variable or command variables.
Claim 13
Dependent Claim
40 words
The method as claimed in claim 7 , wherein the predetermined intermediate pressure (P Z ) or the intermediate pressure (P Z ) which occurs is greater than or equal to the maximum working pressure (P A ) which occurs.
References Cited (Backward Citations)
US4043120A
Cited
US5845479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-10-27 | 2007-04-28 | 2007-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-10-27 | 2011-04-28 | 2011-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-10-27 | 2015-04-28 | 2015-10-28 | $7700.00 | Window Closed / Lapsed |