US3754381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diphasic fluid distributing device
Assignee: Air Liquide SA
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Filing: 1970-07-28
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Granted: 1973-08-28
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Expires: 1990-07-28
Abstract
Abstract A device for distributing a diphasic fluid consisting of a gas and a liquid, placed in an enclosed space elongated in a roughly vertical direction, consisting of a roughly horizontal plate dividing the said enclosed space into an upstream part and a downstream part, the said upstream part incorporating a separator, in which the said plate contains a number of pipes, one portion of which opens into the upstream part and the other portion of which opens into the downstream part, and also possibly containing a number of channels providing communication between the upstream and downstream parts. The distribution plate contains two partitions, perforated with channels, roughly horizontal and close to each other, the said channels in the said partitions being distributed uniformly over each partition.
Inventors
- 👤 P Cappiello
- 👤 J Gauberthier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:19
CPC Classifications
F; F25; F25J; F25J5/00; F25J5/002; F25J2270/00; F25J2270/18; F25J2290/00; F25J2290/10; F25J2290/32
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
317 words
A heat exchanger of large cross section, for countercurrent heat exchange between a diphasic fluid and at least one other fluid, comprising a housing comprising a shell and closure members disposed one at each end of said shell; means defining a plurality of flow paths for said other fluid inside said housing in fluid communication at one end with a distributor and at the other end with collector for said other fluid; a plate connected to said housing, substantially perpendicular to said shell, dividing said housing into a separation chamber for said diphasic fluid between a said closure member and said plate, and a heatexchange chamber between said shell and plate and the other said closure member and enclosing the bulk of said plurality of flow paths; a first conduit for introducing said diphasic fluid into said separation chamber; means for separation of said diphasic fluid into a body of liquid phase and a body of gas phase above said body of liquid phase in said separation chamber; a plurality of distribution tubes, substantially parallel to said shell, distributed in a substantially unfform manner through the cross section of said plate, having an upstream portion extending from said plate into said separation chamber and a downstream portion extending into and terminating in said heat-exchange chamber between said plate and said bulk of the plurality of flow paths, each upstream portion of said distribution tubes being in fluid communication both with said body of liquid phase and with said body of gas phase in said separation chamber, each said downstream portion of said distribution tubes being in fluid communication with the whole of said heat exchange chamber thereby to discharge into said heat exchange chamber substantially homogeneous diphasic fluid on the shell side of said flow path defining means; and a second conduit for evacuating said fluid from said heat-exchange chamber after heat exchange with said another fluid.
Claim 2
Dependent Claim
317 words
A heat exchanger of large cross section, for countercurrent heat exchange between a diphasic fluid and at least one other fluid, comprising a housing comprising a shell and closure members disposed one at each end of said shell; means defining a plurality of flow paths for said other fluid inside said housing in fluid communication at one end with a distributor and at the other end with collector for said other fluid; a plate connected to said housing, substantially perpendicular to said shell, dividing said housing into a separation chamber for said diphasic fluid between a said closure member and said plate, and a heatexchange chamber between said shell and plate and the other said closure member and enclosing the bulk of said plurality of flow paths; a first conduit for introducing said diphasic fluid into said separation chamber; means for separation of said diphasic fluid into a body of liquid phase and a body of gas phase above said body of liquid phase in said separation chamber; a plurality of distribution tubes, substantially parallel to said shell, distributed in a substantially unfform manner through the cross section of said plate, having an upstream portion extending from said plate into said separation chamber and a downstream portion extending into and terminating in said heat-exchange chamber between said plate and said bulk of the plurality of flow paths, each upstream portion of said distribution tubes being in fluid communication both with said body of liquid phase and with said body of gas phase in said separation chamber, each said downstream portion of said distribution tubes being in fluid communication with the whole of said heat exchange chamber thereby to discharge into said heat exchange chamber substantially homogeneous diphasic fluid on the shell side of said flow path defining means; and a second conduit for evacuating said fluid from said heat-exchange chamber after heat exchange with said another fluid.
Claim 3
Dependent Claim
34 words
A heat exchanger according to claim 1, wherein the upstream ends of the upstream portions of said plurality of distribution tubes are disposed in at least one transverse plane substantially parallel to said plate.
Claim 4
Dependent Claim
37 words
A heat exchanger according to claim 2, wherein the upstream ends of said plurality of distribution tubes define a plurality of spaced parallel transverse planes in which the said tubes are distributed in a substantially uniform manner.
Claim 5
Dependent Claim
174 words
A substantially vertical heat exchanger according to claim 1, for countercurrent heat exchange between said diphasic fluid flowing in an upward direction and said at least one other fluid flowing in a downward direction, said heat-exchange chamber being disposed above said separation chamber, wherein each upstream portion of each distribution tube comprises passage means extending along said portion from the lower end thereof for passing at least said part of the gas phase from said body of gas inside each tube, and each said upstream portion opens into said separation chamber at said lower end for introducing at least substantially equal portions of the liquid phase from said body of liquid phase into the gas phase flowing through each said distribution tube, thereby to produce a plurality of homogeneous fluid jets of the diphasic fluid corresponding respectively to said plurality of tubes, and thereby to pass and distribute the liquid phase into said part of the gas phase in a substantially uniform manner over the whole cross section of said exchanger above said plate.
Claim 6
Dependent Claim
34 words
A heat exchanger according to claim 4, wherein said passage means in said plurality of distribution tubes comprises a plurality of perforations the vertical extent of which is greater than the horizontal extent thereof.
Claim 7
Dependent Claim
29 words
A heat exchanger according to claim 4, wherein said passage means in said plurality of distribution tubes comprises two lengthwise slits situation in an axial plane of said tubes.
Claim 8
Dependent Claim
60 words
A heat exchanger according to claim 4, wherein the upstream ends of the upstream portions of said plurality of distribution tubes are disposed in at least one transverse plane substantially parallel to said plate, said passage means extending along each upstream portion of each distribution tube from said transverse plane to a second transverse plane substantially parallel to said plate.
Claim 9
Dependent Claim
99 words
A heat exchanger according to claim 4, wherein said plate comprises a plurality of passage means between said separation chamber and said heat-exchange chamber, distributed in a substantially uniform manner through the cross section of said plate, for passing and distributing another part of the gas phase in a substantially uniform manner over the cross section of said exchanger, downstream of said plate, into a portion of the liquid phase which has passed downstream of said plate and is evenly distributed and retained on said plate, thereby to produce another part of the homogeneous flow of the diphasic fluid.
Claim 10
Dependent Claim
51 words
A heat exchanger according to claim 8, wherein each downstream portion of each distribution tube is substantially closed at its upper end and comprises at least a port for passing the corresponding fluid jet from the inside of each said tube into the heat-exchange chamber in a mean substantially horizontal direction.
Claim 11
Dependent Claim
44 words
A heat exchanger according to claim 9, wherein the distribution tubes extend through said plate in such a manner that for a series of adjacent distribution tubes, the corresponding fluid jets pass into said heat-exchange chamber in means directions substantially parallel to one another.
Claim 12
Dependent Claim
145 words
A substantially vertical heat exchanger according to claim 1, for countercurrent heat exchange between a diphasic fluid flowing in a downward direction and at least one other fluid flowing in an upward direction, said separation chamber being disposed above said heat-exchange chamber, wherein each upstream portion of each distribution tube opens into said separation chamber at its upper end and each downstream portion of each said distribution tube opens into said heat-exchange chamber at its lower end, for passing said gas phase from said body of gas inside each tube, and said plate comprises a plurality of passage means distributed in a substantially uniform manner through the cross section of said plate, for passing and distributing the liquid phase from said body of liquid phase into said gas phase in a substantially uniform manner over the whole cross section of said exchanger below said plate.
Claim 13
Dependent Claim
175 words
A substantially vertical heat exchanger according to claim 1, for countercurrent heat exchange between a diphasic fluid flowing in a downward direction and at least one other fluid flowing in an upward direction, said separation chamber being disposed above said heat-exchange chamber, wherein each upstream portion of each distribution tube opens into said separation chamber at its upper end and each downstream portion of each said distribution tube opens into said heat-exchange chamber at its lower end for passing said gas phase from said body of gas inside each said tube, and each upstream portion of each distribution tube comprises passage means for introducing substantially equal portions of the liquid phase from said body of liquid phase into the gas phase flowing through each said distribution tube, thereby to produce a plurality of homogeneous fluid jets of the diphasic fluid corresponding respectively to said plurality of tubes, and thereby to pass and distribute the liquid phase into the gas phase in a substantially uniform manner over the corss section of said exchanger below said plate.
Claim 14
Dependent Claim
23 words
A heat exchanger according to claim 12 wherein the passage means of each distribution tube are located in the vicinity of said plate.
Claim 15
Dependent Claim
124 words
A heat exchanger according to claim 11, wherein said plate comprises an upper partition and a lower partition substantIally parallel to each other, both partitions having a plurality of passage means distributed in a substantially uniform manner through the cross section of said plate, defining therebetween an intermediate chamber, and wherein said plate comprises a plurality of pressure-balance tubes, substantially parallel to said shell, distributed in a substantially uniform manner through the cross section of said plate, having an upper portion extending from the upper partition into said separation chamber and opening thereinto, and a lower portion extending from said upper partition into said intermediate chamber and opening thereinto, for providing fluid communication of said intermediate chamber exclusively with said body of gas phase.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |