US3923010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Industrial technique
Assignee: Babcock International Ltd
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Filing: 1973-08-20
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Granted: 1975-12-02
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Expires: 1993-08-20
Abstract
Abstract Steam drying device, notably, for thermal power plants. It comprises several grates arranged side by side so as to be successively crossed by the wet steam, each grate being formed by a metal wire wound on suitably braced upper and lower parallel bars 1 and 2. Applicable, notably, to the drying of steam after expansion in light-water nuclear power plants.
Inventors
- 👤 Bernard G Chlique
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:12
CPC Classifications
F; F22; F22B; F22B37/00; F22B37/02; F22B37/26; F22B37/266; F22B37/30
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
152 words
Steam drying device forming a screen retaining water droplets for a steam power plant, characterized by several grates placed side by side so that they can be successively crossed by a flow of wet steam, each grate being composed of a network of parallel bars, the bars of one grate being spaced from the interstices of an adjacent grate, said grates each having two parallel bars spaced from each other, said bars having respective longitudinal axes forming a common plane and a metal wire wound on those two bars to form on both sides of the plane common to the longitudinal axes of the two bars two grates of parallel wire strands, the strands of one of the grates being shifted by half a pitch in relation to those of the other, and a discharge spout for supporting at least some of said bars and for discharging water retained by said device.
Claim 2
Dependent Claim
152 words
Steam drying device forming a screen retaining water droplets for a steam power plant, characterized by several grates placed side by side so that they can be successively crossed by a flow of wet steam, each grate being composed of a network of parallel bars, the bars of one grate being spaced from the interstices of an adjacent grate, said grates each having two parallel bars spaced from each other, said bars having respective longitudinal axes forming a common plane and a metal wire wound on those two bars to form on both sides of the plane common to the longitudinal axes of the two bars two grates of parallel wire strands, the strands of one of the grates being shifted by half a pitch in relation to those of the other, and a discharge spout for supporting at least some of said bars and for discharging water retained by said device.
Claim 3
Dependent Claim
20 words
Device according to claim 1, in which the bars of one grate are parallel to those of an adjacent grate.
Claim 4
Dependent Claim
15 words
Device containing several multiple grate elements, as defined in claim 1, spaced from each other.
Claim 5
Dependent Claim
27 words
Device according to claim 3, having over its length multiple grate elements or units alternating with the spouts serving to discharge the water retained by the screen.
Claim 6
Dependent Claim
28 words
Device according to claim 4, equipped with gutters situated under the grates and emptying into the spouts and windows formed in the side walls of the said gutters.
Claim 7
Dependent Claim
51 words
Steam drying according to claim 1 comprising, a shell, a nest of superheater tubes within said shell, at least one of said steam drying devices, a partition for setting the wet steam a course successively crossing the drier and the superheater, and means for discharging the water retained in the drier.
Claim 8
Dependent Claim
35 words
Device according to claim 1 further comprising a pipe for channeling a flow of wet steam therewithin, said steam drying device being inserted in the passage of the flow of wet steam inside said pipe.
Claim 9
Dependent Claim
61 words
Device according to claim 7, wherein said wet steam pipe further comprises a widened portion, having on both sides of its axial plane two screens, said partition setting a course for the wet steam forcing it to enter the space between the two screens and cross said screens before continuing circUlation in the dry steam state below said widened pipe portion.
Claim 10
Dependent Claim
20 words
Device according to claim 8, in which the two screens converge downward, in the direction of circulation of the steam.
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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |