US3561406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow-through steam generator
Assignee: Siemens AG
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Filing: 1968-12-10
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Granted: 1971-02-09
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Expires: 1988-12-10
Abstract
Abstract Flow-through steam generator includes a boiler system having a heating zone and a nonheating zone, means for measuring boiler pressure loss and throughput at locations in the nonheating zone of the system, and load correction regulator means operatively connected to the measuring means and responsive to the measured data for adjusting feedwater supply and heat power input to the boiler system so that the feedwater supply and the heat power input are proportional to one another.
Inventors
- 👤 Michel Rupprecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:35
CPC Classifications
F; F22; F22B; F22B35/00; F22B35/004
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
105 words
Flow-through steam generator comprising a boiler system having a heating zone and a nonheating zone, means continuously measuring boiler pressure loss and throughput at locations in the nonheating zone of said system, load correction regulator means operatively connected to said measUring means and responsive to the measured data for adjusting feedwater supply and heat power input to said boiler system so that said feedwater supply and said heat power input are proportional to one another, and means for continuously measuring the final temperature in said nonheating zone of steam generated in said system, said lastmentioned means being operatively connected to said load correction regulator means.
Claim 2
Dependent Claim
105 words
Flow-through steam generator comprising a boiler system having a heating zone and a nonheating zone, means continuously measuring boiler pressure loss and throughput at locations in the nonheating zone of said system, load correction regulator means operatively connected to said measUring means and responsive to the measured data for adjusting feedwater supply and heat power input to said boiler system so that said feedwater supply and said heat power input are proportional to one another, and means for continuously measuring the final temperature in said nonheating zone of steam generated in said system, said lastmentioned means being operatively connected to said load correction regulator means.
Claim 3
Dependent Claim
41 words
Flow-through steam generator according to claim 1 wherein said boiler system comprises a tube system located in said heating zone and devoid of any intermediate connection with any vessels, said tube system having heating surfaces engageable by a nonsoiling heat carrier.
Claim 4
Dependent Claim
31 words
Flow-through steam generator according to claim 1, comprising a nuclear reactor primary circulatory system for circulating a coolant gas heated by said reactor, said heat carrier being said heated coolant gas.
Claim 5
Dependent Claim
38 words
Flow-through steam generator according to claim 1 comprising a device connected downstream of said load correction regulating means for comparing the measured data with predetermined relationships between feedwater supply, pressure drop and final temperature, and evaluating the same.
Claim 6
Dependent Claim
32 words
Flow-through steam generator according to claim 1, including means for providing nominal values corresponding to the measured data, and means for correcting said nominal values in adjustment with varying pressure loss values.
Claim 7
Dependent Claim
16 words
Flow-through steam generator according to claim 5 wherein said nominal values correcting means are manually operable.
Claim 8
Dependent Claim
16 words
Flow-through steam generator according to claim 5 wherein said nominal values correcting means are automatically operable.
Claim 9
Dependent Claim
26 words
Flow-through steam generator according to claim 1, including measuring devices of different measuring ranges for determining pressure loss in said boiler system for different load ranges.
Claim 10
Dependent Claim
33 words
Flow-through steam generator according to claim 8, including automatic switch-over means between said pressure loss measuring devices for effecting load-dependent switching from one to another of said measuring devices at different load levels.
Claim 11
Dependent Claim
80 words
Flow-through steam generator according to claim 1, including storage means for providing nominal values for comparison with the measured data, a calculating device operatively connected to said load correction regulator means downstream thereof for calculating the respective pressure loss of said boiler system for load-dependent variable operating pressure, means for continuously transmitting measurement signals representing load and steam pressure to said calculating device, and means located in the vicinity of said nominal values storage means for adjusting said nominal value.
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |