US3783936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for carrying out a heat exchange between a heat carrier medium and a drum reactor
Assignee: Buss AG
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Filing: 1972-01-12
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Granted: 1974-01-08
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Expires: 1992-01-12
Abstract
Abstract The present invention pertains to the indirect heating or cooling of a drum reactor by the exchange of heat from a heat carrier medium. The heat carrier medium is fed to one or more annular distribution chambers fixedly disposed about a stationary outer wall or jacket, thence through openings in the jacket into the annular space between the jacket and the rotatable drum wall, and finally out to one or more annular collection chambers. The distribution and collection chambers are spaced apart from each other and cause the heat carrier medium to flow longitudinally along the drum for more efficient heat exchange. In addition, the various inlet and exit ports of the alternate distribution chambers are radially spaced from each other such that the heat carrier flow is both longitudinal and rotational about the drum reactor.
Inventors
- 👤 E Wisz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:32
CPC Classifications
F; F28; F28D; F28D11/00; F28D11/02; Y; Y10; Y10S; Y10S165/00; Y10S165/135; Y10S165/139; Y10S165/156
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
222 words
Heat exchange apparatus for a hollow, cylindrical drum comprising; a frame; roller means supporting each end of said drum on said frame for rotation about the axis thereof; drive means on said frame for imparting rotary motion to said drum; a cylindrical jacket mounted on said frame and coaxially disposed about the exterior wall of said drum, said jacket defining together with said exterior wall of said drum a sealed, elongated annular cavity; a plurality of axially spaced annular Chambers arranged circumferentially around said cylindrical jacket and fixedly secured therewith; each of said annular chambers communicating with said cavity through a plurality of openings in said jacket spaced about the entire circumference thereof; port means radially extending from each of said annular chambers and communicating interiorly thereof; a heat transfer medium; means causing the temperature of said heat transfer medium to assume a value different from ambient; inlet valve means; outlet valve means; means feeding said heat transfer medium from said causing means to said inlet valve means; means exhausting said heat transfer medium from said outlet valve means; and means connecting alternate ones of said port means of each of said annular chambers to said inlet valve means and said outlet valve means for establishing longitudinal flow of said heat transfer medium about the entire outer cylindrical surface of said drum.
Claim 2
Dependent Claim
222 words
Heat exchange apparatus for a hollow, cylindrical drum comprising; a frame; roller means supporting each end of said drum on said frame for rotation about the axis thereof; drive means on said frame for imparting rotary motion to said drum; a cylindrical jacket mounted on said frame and coaxially disposed about the exterior wall of said drum, said jacket defining together with said exterior wall of said drum a sealed, elongated annular cavity; a plurality of axially spaced annular Chambers arranged circumferentially around said cylindrical jacket and fixedly secured therewith; each of said annular chambers communicating with said cavity through a plurality of openings in said jacket spaced about the entire circumference thereof; port means radially extending from each of said annular chambers and communicating interiorly thereof; a heat transfer medium; means causing the temperature of said heat transfer medium to assume a value different from ambient; inlet valve means; outlet valve means; means feeding said heat transfer medium from said causing means to said inlet valve means; means exhausting said heat transfer medium from said outlet valve means; and means connecting alternate ones of said port means of each of said annular chambers to said inlet valve means and said outlet valve means for establishing longitudinal flow of said heat transfer medium about the entire outer cylindrical surface of said drum.
Claim 3
Dependent Claim
28 words
The invention as recited in claim 1 wherein said jacket and said annular chambers are constructed in the form of mating semi-cylindrical elements removable exteriorly of said drum.
Claim 4
Dependent Claim
54 words
The invention as recited in claim 1 wherein those of said port means connected with said inlet valve means are disposed at a spaced radial position relative to those others of said port means connected with said outlet valve means whereby said established flow of said heat transfer medium is both longitudinal and rotational.
References Cited (Backward Citations)
US2214874A
Cited
US2956348A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |