US3745978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for drying and superheating steam
Assignee: Babcock Atlantique SA
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Filing: 1971-11-30
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Granted: 1973-07-17
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Expires: 1991-11-30
Abstract
Abstract An apparatus for drying and heating steam, comprising a horizontally elongated casing, provided with inlet and outlet means for circulating the steam therein from bottom to top along a path successively passing through a moisture extractor, and a surface exchanger forming a superheater, and provided with outlet apertures for these exchanger elements, characterised in that the superheater is composed of a plurality of independent banks of tubes which are elongated in the longitudinal direction of the shell and in cross-section occupy less space in height than in width.
Inventors
- 👤 M Armand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:06
CPC Classifications
F; F22; F22G; F22G1/00; F22G1/005; F22B; F22B37/00; F22B37/02; F22B37/26; F22B37/266
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
103 words
An apparatus for drying and heating steam, comprising a horizontally elongated shell, a surface exchanger forming a superheater, inlet and outlet means in said casing for circulating the steam therein from bottom to top along a path successively passing through a moisture extractor and said surface exchanger, outlet apertures to said casing for these exchanger elements, said superheater being composed of a plurality of independent banks of tubes which are elongated in the longitudinal direction of said shell and disposed side by side throughout the substantial width of the shell, said bank being of cross-section occupying less space in height than in width.
Claim 2
Independent Claim
103 words
An apparatus for drying and heating steam, comprising a horizontally elongated shell, a surface exchanger forming a superheater, inlet and outlet means in said casing for circulating the steam therein from bottom to top along a path successively passing through a moisture extractor and said surface exchanger, outlet apertures to said casing for these exchanger elements, said superheater being composed of a plurality of independent banks of tubes which are elongated in the longitudinal direction of said shell and disposed side by side throughout the substantial width of the shell, said bank being of cross-section occupying less space in height than in width.
Claim 3
Dependent Claim
22 words
An apparatus according to claim 1, characterised in that each said bank occupies only a fraction of the length of said shell.
Claim 4
Dependent Claim
56 words
An apparatus according to claim 2, characterised in that said banks are distributed in rows, each of which is composed of a plurality of banks disposed end to end from one end to the other of the apparatus, each said row being provided with a single outlet aperture disposed in an end wall of said shell.
Claim 5
Dependent Claim
25 words
An apparatus according to claim 1, characterised in that the outlet openings of said banks are distributed over the two end walls of said shell.
Claim 6
Dependent Claim
20 words
An apparatus according to claim 1, characterised in that said banks of tubes are disposed at a plurality of levels.
Claim 7
Dependent Claim
32 words
An apparatus according to claim 5, characterised in that said banks form a plurality of stages, each of which has an individual heating fluid inlet, to constitute a plurality of superheating stages.
Claim 8
Dependent Claim
45 words
An apparatus according to claim 5, characterised in that said banks are distributed in vertically aligned groups of banks, said banks of one of these groups being provided with a common support formed by two longitudinal beams situated one on each side of this group.
Claim 9
Dependent Claim
19 words
An apparatus according to claim 1, characterised in that each said bank is placed on a longitudinal running track.
Claim 10
Dependent Claim
37 words
An apparatus according to claim 8, characterised in that each said bank is framed laterally by two plates in erect positions which serve to support it and which are provided with wheels resting on said running track.
Claim 11
Dependent Claim
40 words
An apparatus according to claim 9, characterised by partitioning elements disposed in contact with the bottom and/or top edges of the side support plates of said banks and forming with said plates guide paths for the steam through said banks.
Claim 12
Independent Claim
179 words
An apparatus for drying and heating steam, comprising a horizontally elongated shell, a surface exchanger forming a superheater, inlet and outlet means in said casing for circulating the steam therein from bottom to top along a path successively passing through a moisture extractor and said surface exchanger, outleT apertures to said casing for these exchanger elements, said superheater being composed of a plurality of independent banks of tubes which are elongated in the longitudinal direction of said shell and disposed side by side in the width of the shell, said bank being of cross-section occupying less space in height than in width, at least those of the banks which are disposed side by side being all of the same length and forming a group equipped at each end with a flat erect partition providing for each bank a passage hole equipped with a perforated plate through which the tubes of said bank pass, said two erect partitions being connected fluid-tightly to said shell and forming between them a guide path for the steam through said banks of said groups.
Claim 13
Independent Claim
179 words
An apparatus for drying and heating steam, comprising a horizontally elongated shell, a surface exchanger forming a superheater, inlet and outlet means in said casing for circulating the steam therein from bottom to top along a path successively passing through a moisture extractor and said surface exchanger, outleT apertures to said casing for these exchanger elements, said superheater being composed of a plurality of independent banks of tubes which are elongated in the longitudinal direction of said shell and disposed side by side in the width of the shell, said bank being of cross-section occupying less space in height than in width, at least those of the banks which are disposed side by side being all of the same length and forming a group equipped at each end with a flat erect partition providing for each bank a passage hole equipped with a perforated plate through which the tubes of said bank pass, said two erect partitions being connected fluid-tightly to said shell and forming between them a guide path for the steam through said banks of said groups.
Claim 14
Independent Claim
102 words
An apparatus for drying and heating steam, comprising a horizontally elongated shell, inlet and outlet means for circulating the steam therein from bottom to top along a path passing in succession through a moisture extractor and a surface exchanger forming a superheater, a wet steam inlet comprising at least one inlet passing through the bottom of said shell at an intermediate point therein and feeding a plurality of distribution ducts which have perforated walls and extend in the longitudinal direction of said shell and disposed on each side of the transversal plane of the apparatus situated in line with said inlet point.
Claim 15
Independent Claim
102 words
An apparatus for drying and heating steam, comprising a horizontally elongated shell, inlet and outlet means for circulating the steam therein from bottom to top along a path passing in succession through a moisture extractor and a surface exchanger forming a superheater, a wet steam inlet comprising at least one inlet passing through the bottom of said shell at an intermediate point therein and feeding a plurality of distribution ducts which have perforated walls and extend in the longitudinal direction of said shell and disposed on each side of the transversal plane of the apparatus situated in line with said inlet point.
Claim 16
Dependent Claim
25 words
An apparatus according to claim 13, characterised by a plurality of said longitudinal ducts is disposed side by side over the width of the apparatus.
Claim 17
Dependent Claim
35 words
An apparatus according to claim 13, characterised by a plurality of such inlets which are spaced over the length of the apparatus, the ducts of each inlet extending only over a fraction of said length.
Claim 18
Dependent Claim
34 words
An apparatus according to claim 13, characterised in that said perforated walls are side walls which are set back in relation to a top wall of the duct, said top wall forming a roof.
Claim 19
Dependent Claim
20 words
An apparatus according to claim 13, characterised by water collection and evacuation gutters bordering the top walls of said ducts.
Claim 20
Dependent Claim
37 words
An apparatus according to claim 13, characterised in that said ducts are situated at a distance from the wall of said shell, in such a manner as not to obstruct the flow of water along said wall.
Claim 21
Dependent Claim
22 words
An apparatus according to claim 1, characterised by a plurality of water drains spaced out along the bottom generatrix of said shell.
Claim 22
Independent Claim
266 words
An apparatus for drying and heating steam, comprising a horizontally elongated shell, a surface exchanger forming a superheater, inlet and outlet means in said casing for circulating the steam therein from bottom to top along a path successively passing through a moisture extractor and said surface exchanger, outlet apertures to said casing for these exchanger elements, said superheater being composed of a plurality of independent banks of tubes which are elongated in the longitudinal direction of said shell and in cross-section occupy less space in height than in width, at least those of the banks which are disposed side by side being all of the same length and forming a group equipped at each end with a flat erect partition providing for each bank a passage hole equipped with a perforated plate through which the tubes of said bank pass, said two erect partitions being connected fluid-tightly to said shell and forming between them a guide path for the steam through said banks of said groups, one of said perforated plates which is situated at the end of the respective bank closer to an end wall of said shell being connected to a sleeve passing through said end wall towards the outside, said one plate and said sleeve together forming a box collecting heating fluid and serving said bank, said sleeve being surrounded by a coacting sleeve which is connected by one of its ends to said partition so as to form a fluid-tight joint and fixed by its opposite end to said sleeve, while between said two ends it is fixed to said end wall.
Claim 23
Independent Claim
266 words
An apparatus for drying and heating steam, comprising a horizontally elongated shell, a surface exchanger forming a superheater, inlet and outlet means in said casing for circulating the steam therein from bottom to top along a path successively passing through a moisture extractor and said surface exchanger, outlet apertures to said casing for these exchanger elements, said superheater being composed of a plurality of independent banks of tubes which are elongated in the longitudinal direction of said shell and in cross-section occupy less space in height than in width, at least those of the banks which are disposed side by side being all of the same length and forming a group equipped at each end with a flat erect partition providing for each bank a passage hole equipped with a perforated plate through which the tubes of said bank pass, said two erect partitions being connected fluid-tightly to said shell and forming between them a guide path for the steam through said banks of said groups, one of said perforated plates which is situated at the end of the respective bank closer to an end wall of said shell being connected to a sleeve passing through said end wall towards the outside, said one plate and said sleeve together forming a box collecting heating fluid and serving said bank, said sleeve being surrounded by a coacting sleeve which is connected by one of its ends to said partition so as to form a fluid-tight joint and fixed by its opposite end to said sleeve, while between said two ends it is fixed to said end wall.
Claim 24
Independent Claim
138 words
An apparatus for drying and heating steAm, comprising a horizontally elongated shell, inlet and outlet means for circulating the steam therein from bottom to top along a path passing in succession through a moisture extractor and a surface exchanger forming a superheater, a wet steam inlet comprising at least one inlet passing through the bottom of said shell at an intermediate point therein and feeding a plurality of distribution ducts which have perforated walls and extend in the longitudinal direction of said shell and disposed on each side of the transversal plane of the apparatus situated in line with said inlet point, said ducts having a polygonal profile, composed of two perforated vertical walls, a roof with gutters projecting beyond the line of said walls, and a floor situated at a distance from the bottom of said shell.
Claim 25
Independent Claim
138 words
An apparatus for drying and heating steAm, comprising a horizontally elongated shell, inlet and outlet means for circulating the steam therein from bottom to top along a path passing in succession through a moisture extractor and a surface exchanger forming a superheater, a wet steam inlet comprising at least one inlet passing through the bottom of said shell at an intermediate point therein and feeding a plurality of distribution ducts which have perforated walls and extend in the longitudinal direction of said shell and disposed on each side of the transversal plane of the apparatus situated in line with said inlet point, said ducts having a polygonal profile, composed of two perforated vertical walls, a roof with gutters projecting beyond the line of said walls, and a floor situated at a distance from the bottom of said shell.
Claim 26
Independent Claim
134 words
An apparatus for drying and heating steam, comprising a horizontally elongated shell, inlet and outlet means for circulating the steam therein along a path passing in succession through a moisture extractor and a surface exchanger forming a superheater, said moisture extractor being a foraminous wall extending lengthwise of the shell and dividing the chamber defined thereby into a lower space and a higher space with the latter containing the superheater, a wet steam inlet comprising at least one inlet passing through the bottom of said shell at an intermediate point therein and feeding a plurality of distribution ducts which have perforated walls and extend in the longitudinal direction of said shell within said lower space and disposed on each side of the transversal plane of the apparatus situated in line with said inlet point.
Claim 27
Independent Claim
134 words
An apparatus for drying and heating steam, comprising a horizontally elongated shell, inlet and outlet means for circulating the steam therein along a path passing in succession through a moisture extractor and a surface exchanger forming a superheater, said moisture extractor being a foraminous wall extending lengthwise of the shell and dividing the chamber defined thereby into a lower space and a higher space with the latter containing the superheater, a wet steam inlet comprising at least one inlet passing through the bottom of said shell at an intermediate point therein and feeding a plurality of distribution ducts which have perforated walls and extend in the longitudinal direction of said shell within said lower space and disposed on each side of the transversal plane of the apparatus situated in line with said inlet point.
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) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |