US3890789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal power plants
Assignee: Waagner Biro AG
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Filing: 1973-12-06
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Granted: 1975-06-24
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Expires: 1993-12-06
Abstract
Abstract A thermal power plant such as a nuclear power plant where a primary circuit is provided for generating primary power while an accumulator circuit communicates with the primary circuit for generating additional power to be utilized for peak loads. The accumulator circuit includes displacement accumulators communicating with steam-generating units for providing the energy to be utilized for the additional peak power. Fluid is circulated between the displacement accumulators and steam generator units by way of a circulating conduit system and a fluid-circulating structure communicating therewith. This fluidcirculating structure is driven from a drive accumulator, so that it is not necessary to use electricity in order to circulate the fluid of the accumulator circuit.
Inventors
- 👤 Georg Beckmann
- 👤 Paul Viktor Gilli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:39
CPC Classifications
F; F01; F01K; F01K3/00; F01K3/18; F01K3/181; F01K3/02; F01K3/04; F01K3/14
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
144 words
In a thermal power plant, such as a nuclear power plant, primary circuit means for generating primary power and accumulator circuit means communicating with said primary circuit means for generating additional peak power to be used in addition to the primary power during peak power periods, said accumulator circuit means including a displacement accumulator means for accumulating a reserve of energy during non-peak periods, steam generator means communicating with said displacement accumulator means for generating steam with fluid circulated between said displacement accumulator means and said steam generator means, circulating conduit means communicating with said displacement accumulator means and said steam generator means for circulating the fluid between said steam generator means and said displacement accumulator means, circulating means operatively connected with said circulating conduit means for circulating fluid therethrough, and drive accumulator means operatively connected with said circulating means for driving the latter.
Claim 2
Dependent Claim
144 words
In a thermal power plant, such as a nuclear power plant, primary circuit means for generating primary power and accumulator circuit means communicating with said primary circuit means for generating additional peak power to be used in addition to the primary power during peak power periods, said accumulator circuit means including a displacement accumulator means for accumulating a reserve of energy during non-peak periods, steam generator means communicating with said displacement accumulator means for generating steam with fluid circulated between said displacement accumulator means and said steam generator means, circulating conduit means communicating with said displacement accumulator means and said steam generator means for circulating the fluid between said steam generator means and said displacement accumulator means, circulating means operatively connected with said circulating conduit means for circulating fluid therethrough, and drive accumulator means operatively connected with said circulating means for driving the latter.
Claim 3
Dependent Claim
15 words
The combination of claim 1 and wherein said circulating means includes at least one ejector.
Claim 4
Dependent Claim
16 words
THe combination of claim 1 and wherein said circulating means includes at least one turbine-pump unit.
Claim 5
Dependent Claim
56 words
The combination of claim 1 and wherein a discharge conduit provides communication between said drive accumulator means and said circulating means, and superheating means communicating on the one hand with said discharge conduit to receive heat therefrom and on the other hand with said steam generator means for superheating steam received from said steam generating means.
Claim 6
Dependent Claim
66 words
The combination of claim 1 and wherein said circulating conduit means includes a discharge conduit extending from said displacement accumulator means to said steam generator means, and said steam generator means including a plurality of steam generator units connected in series with a first one of said units communicating directly with said discharge conduit, the second of said units communicating with the first, and so on.
Claim 7
Dependent Claim
56 words
The combination of claim 5 and wherein a feedwater supply means communicates with said steam generator units for supplying to the latter water from which steam is generated, said feedwater supply means communicating with said circulating conduit means for utilizing liquid circulated through said displacement accumulator means as feedwater for said plurality of steam generator means.
Claim 8
Dependent Claim
82 words
The combination of claim 6 and wherein said circulating means is operatively connected with said circulating conduit means between a pair of said steam generator units, and said feedwater supply means communicating with said circulating conduit means upstream of said circulating means and delivering feedwater therefrom to a steam generator unit situated downstream of said circulating means, said feedwater supply means including a throttle means for throttling the flow of feedwater to the unit which is situated downstream of said circulating means.
Claim 9
Dependent Claim
47 words
The combination of claim 6 and wherein said circulating conduit means communicates with said plurality of steam generator units for circulating fluid successively therethrough, and said feedwater supply means communicating with said circulating conduit means at a location downstream of the first of said steam generator units.
Claim 10
Dependent Claim
66 words
The combination of claim 5 and wherein a preheating means communicates with said circulating conduit means for deriving heat from at least part of the fluid flowing therethrough, and said feedwater supply means also communicating with said preheating means for preheating the feedwater before the latter is supplied to the steam generator units with the heat derived from the fluid flowing through said circulating conduit means.
Claim 11
Dependent Claim
49 words
The combination of claim 1 and wherein said steam generator means includes a plurality of flash steam generator units connected in series along said circulating conduit means and a plurality of phase-separating means respectively communicating with said flash steam generator units for separating the generated steam from the liquid.
Claim 12
Dependent Claim
72 words
The combination of claim 10 and wherein the series of flash steam generator units include at least one tapered conduit portion for accelerating the flow of fluid, at least one phase-separating conduit portion, at least one ejector forming part of said circulating means and circulating the fluid through the series of flash steam generators, and at least one diffusor operatively connected with the last of the series of flash steam generator means.
Claim 13
Dependent Claim
63 words
The combination of claim 1 and wherein a feedwater preheating means for preheating the charge of said displacement accumulator means also serves as said steam generator means, control means operatively connected to said circulating conduit means for switching said feedwater preheating means between operations as feedwater preheater and steam generator, and said feedwater preheating means preheating feedwater supplied to said displacement accumulator means.
Claim 14
Dependent Claim
42 words
The combination of claim 12 and wherein said primary circuit means includes a turbine and said feedwater preheating means being operativelY connected with said turbine when functioning as steam generator for overloading the latter turbine in order to achieve additional peak power.
Claim 15
Dependent Claim
31 words
The combination of claim 13 and wherein said turbine includes primary and secondary stages and said feedwater preheating means including units communicating with both of said stages for overloading the latter.
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) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |