US3800865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanges
Assignee: Stord Bartz Industri AS
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Filing: 1971-05-11
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Granted: 1974-04-02
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Expires: 1991-05-11
Abstract
Abstract This invention has reference to heat exchangers for the indirect heating, drying or cooling of more or less moist, solid or semisolid materials and which comprise a stationary heat exchanger jacket within which a heat exchanger body is mounted for rotatable movement, said body comprising a hollow cylinder provided with a row of outwardly projecting annular disc-like hollow bodies for receiving a suitable heat exchanger carrier medium and vane means on the hollow bodies for conveying the material to be treated through the chamber and for turning and stirring about this material. An essential feature of the invention involves interconnecting the hollow bodies at the periphery of the hollow cylinder to form a row in series, or two separate rows in series, connected in series with a through-passage of the hollow cylinder and having a flow path extending peripherally forwards and backwards between a medium intake and a medium discharge located at the periphery of the hollow cylinder.
Inventors
- 👤 T Onarheim
- 👤 P Solberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:01
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/28; F28; F28D; F28D11/00; F28D11/02; F28F; F28F5/00; Y; Y10; Y10S; Y10S165/00; Y10S165/228
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
331 words
In a heat exchanger for effecting indirect heat transfer to and from moist solid and semi-solid materials which comprises a stationary substantially horizontal heat exchanger jacket; a heat exchanger body; said jacket defining a chamber within which said body is mounted for rotatable movement, said body comprisng a hollow cylinder, a row of radially projecting annular, disc-like hollow bodies mounted on said hollow cylinder for receiving a suitable heat exchange medium; and vane means on said hollow bodies for conveying the material to be treated through saiD chamber axially of said hollow cylinder and for turning over and stirring about said material; the improvement comprising each said hollow body being communicatively interconnected with an adjacent body at the exterior periphery of said hollow cylinder to form an in series flow course through all said hollow bodies, each said hollow body having internal duct means for directing heat exchanger medium flow therein radially outwardly and inwardly between a medium intake and a medium discharge associated with such hollow body and located at the exterior periphery of the hollow cylinder whereby the medium courses a flow path in such hollow body partly in and partly counter to the direction of rotation of said heat exchanger body, said hollow cylinder enclosing a through-passage, the flow course through said hollow bodies being connected in series with said throughpassage, the duct means in each hollow body including a guide plate with the aid of which the flow path is formed, said guide plate extending from the periphery of the hollow cylinder between the medium intake and the medium discharge, a first section being disposed radially outwards of said periphery and a second section being arranged in an arc of more than 180* substantially concentrically of said cylinder over towards a separating wall located radially beween the periphery of the hollow cylinder and the periphery of the hollow body. CM,2Eat exchanger according to claim 1, wherein the guide plate is disposed axially parallel to the hollow body.
Claim 2
Dependent Claim
40 words
The heat exchanger according to claim 1, wherein the medium intake and the medium discharge are each disposed on respective sides of an axial plane through the hollow cylinder and tightly up to the first section of the guide plate.
Claim 3
Dependent Claim
45 words
The heat exchanger according to claim 1, wherein two adjacent hollow bodies having the separating walls and guide plates are angularly displaced by an arc corresponding to that between the axes of the medium intake and medium discharge in one and the same hollow body.
Claim 4
Dependent Claim
281 words
In a heat exchanger for effecting indirect heat transfer to and from moist solid and semi-solid materials which comprises a stationary substantially horizontal heat exchanger jacket; a heat exchanger body; said jacket defining a chamber within which said body is mounted for rotatable movement, said body comprising a hollow cylinder, a row of radially projecting annular, disc-like hollow bodies mounted on said hollow cylinder for receiving a suitable heat exchange medium; and vane means on said hollow bodies for conveying the material to be treated through said chamber axially of said hollow cylinder and for turning over and stirring about said material; the improvement comprising each said hollow body being communicatively interconnected with an adjacent body at the exterior periphery of said hollow cylinder to form an in series flow course through all said hollow bodies, said hollow bodies being inteconnected by interconnecting duct means arranged externally on the hollow cylinder, which interconnecting duct means is defined beween the periphery of the hollow cylinder and a C-shaped member having in cross-section a major dimension less than the diameter of the hollow cylinder and disposed axially parallel to the periphery of the hollow cylinder, each said hollow body having internal duct means for directing heat exchange medium flow therein radially outwardly and inwardly between a medium intake and a medium discharge associated with such hollow body and located at the exterior periphery of the hollow cylinder whereby the medium courses a flow path in such hollow body partly in and partly counter to the direction of rotation of said heat exchanger body, said hollow cylinder enclosing a through-passage, the flow course through said hollow bodies being connected in series with said through-passage.
Claim 5
Dependent Claim
281 words
In a heat exchanger for effecting indirect heat transfer to and from moist solid and semi-solid materials which comprises a stationary substantially horizontal heat exchanger jacket; a heat exchanger body; said jacket defining a chamber within which said body is mounted for rotatable movement, said body comprising a hollow cylinder, a row of radially projecting annular, disc-like hollow bodies mounted on said hollow cylinder for receiving a suitable heat exchange medium; and vane means on said hollow bodies for conveying the material to be treated through said chamber axially of said hollow cylinder and for turning over and stirring about said material; the improvement comprising each said hollow body being communicatively interconnected with an adjacent body at the exterior periphery of said hollow cylinder to form an in series flow course through all said hollow bodies, said hollow bodies being inteconnected by interconnecting duct means arranged externally on the hollow cylinder, which interconnecting duct means is defined beween the periphery of the hollow cylinder and a C-shaped member having in cross-section a major dimension less than the diameter of the hollow cylinder and disposed axially parallel to the periphery of the hollow cylinder, each said hollow body having internal duct means for directing heat exchange medium flow therein radially outwardly and inwardly between a medium intake and a medium discharge associated with such hollow body and located at the exterior periphery of the hollow cylinder whereby the medium courses a flow path in such hollow body partly in and partly counter to the direction of rotation of said heat exchanger body, said hollow cylinder enclosing a through-passage, the flow course through said hollow bodies being connected in series with said through-passage.
Claim 6
Dependent Claim
41 words
The heat exchanger according to claim 5, wherein the hollow cylinder has two separate rows of series-coupled hollow bodies formed by dividing said cylinder transversely into two sections with separate flow paths for the circulation of carrier mediums at different temperatures.
Claim 7
Dependent Claim
34 words
The heat exchanger according to claim 6, wherein the hollow bodies of both sections are adapted to have the carrier mediums passed through in one and the same direction axially of the hollow cylinder.
Claim 8
Dependent Claim
42 words
The heat exchanger according to claim 7, wherein the carrier medium is conveyed in a direction axially opposite to the direction of movement of the material to be treated in the heat exchanger from the inlet to the outlet of the latter.
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) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |