CA1042658A - Hot oil drum - Google Patents
Hot oil drumInfo
- Publication number
- CA1042658A CA1042658A CA211,952A CA211952A CA1042658A CA 1042658 A CA1042658 A CA 1042658A CA 211952 A CA211952 A CA 211952A CA 1042658 A CA1042658 A CA 1042658A
- Authority
- CA
- Canada
- Prior art keywords
- feed
- return
- annular
- plenum
- legs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F5/00—Elements specially adapted for movement
- F28F5/02—Rotary drums or rollers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
- F26B13/14—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning
- F26B13/18—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning heated or cooled, e.g. from inside, the material being dried on the outside surface by conduction
- F26B13/183—Arrangements for heating, cooling, condensate removal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S165/00—Heat exchange
- Y10S165/135—Movable heat exchanger
- Y10S165/139—Fully rotatable
- Y10S165/156—Hollow cylindrical member, e.g. drum
- Y10S165/159—Hollow cylindrical member, e.g. drum with particular flow path or defined fluid chamber, e.g. annulus, spiral
- Y10S165/16—Concentric shells define annular flow space
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Drying Of Solid Materials (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Resistance Heating (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
An apparatus having a substantially uniformly heated surface is provided for heat exchange purposes, such as use in the printing of textile web materials. The apparatus comprises concentric inner and outer shells defining an annular flow space therebetween. Closing means connect the opposite ends of the inner and outer shells.
Longitudinally-extending portions extending between the inner and outer shells and form a plurality of longitudinally-extending compartments within the flow space. Longitudinally-extending baffles extend between the inner and outer shells for a portion of the length of the compartments, so that an approximately U-shaped flow path is formed within each of the compartments, such approximately U-shaped flow paths each including only two legs consisting of an entrance leg and an exit leg, the legs being circumferentially arranged with respect to each other. Feed means are provided for supplying a heat-transfer fluid to the entrance leg of each of said approximately U-shaped flow paths. Return means are provided for withdrawing a heat-transfer fluid from the exit leg of such approximately U-shaped flow paths. A centrally-disposed concentric feed passage is adapted to be connected to a source of heat transfer fluid, the central feed passage communicating with the feed means and the return means. The return means includes an annular return plenum disposed beneath the inner shell, which communicates with the exit legs of said approximately U-shaped flow paths, and at least one radially-extending return channel which communicates with the central feed passage and with the annular return plenum for removing heat-transfer fluid from said annular return plenum.
This provides a drum of simple construction which enable improved uniformity of heating materials.
An apparatus having a substantially uniformly heated surface is provided for heat exchange purposes, such as use in the printing of textile web materials. The apparatus comprises concentric inner and outer shells defining an annular flow space therebetween. Closing means connect the opposite ends of the inner and outer shells.
Longitudinally-extending portions extending between the inner and outer shells and form a plurality of longitudinally-extending compartments within the flow space. Longitudinally-extending baffles extend between the inner and outer shells for a portion of the length of the compartments, so that an approximately U-shaped flow path is formed within each of the compartments, such approximately U-shaped flow paths each including only two legs consisting of an entrance leg and an exit leg, the legs being circumferentially arranged with respect to each other. Feed means are provided for supplying a heat-transfer fluid to the entrance leg of each of said approximately U-shaped flow paths. Return means are provided for withdrawing a heat-transfer fluid from the exit leg of such approximately U-shaped flow paths. A centrally-disposed concentric feed passage is adapted to be connected to a source of heat transfer fluid, the central feed passage communicating with the feed means and the return means. The return means includes an annular return plenum disposed beneath the inner shell, which communicates with the exit legs of said approximately U-shaped flow paths, and at least one radially-extending return channel which communicates with the central feed passage and with the annular return plenum for removing heat-transfer fluid from said annular return plenum.
This provides a drum of simple construction which enable improved uniformity of heating materials.
Description
104265~
me present invention relates to improvements in heat tr s fer apparatus, e.g. cylindrical, rotatable heat tr s fer drums. ~ore particu-larly, the present invention relates to such heat transfer drums which are capable of naintaining substantialiy uniform temperatures about their en~;re surface and are of relatively simple, inexpensive construction.
The use of cylindrical drums which employ various heat transfer media to heat their outer surfaces, and the use of these drums in various processes requiring such heat to be applied to various materials, e.g.
textile web materials, disposed on the drum surface, is well known. Gener-ally, these cylindrical rotatable heat tr s fer drums have employed various heat transfer media, including steam and certain hydrocarbon liquids. For t example, it has been known to supply steam to the interior of such cylindri-cal heat transfer drums in order to heat the outer surface thereof. Thus, in U.S. Patent No. 2,932,091 issued to G.D. Day on April 12, 1960 such a rotatable drum, used for drying purposes, is disclosed. The appara-- tus there taught includes a central hollow thick walled pipe for the sup-ply of steam to radially extending distributors, and then to a large plurality of parallelly spaced tubes lying about the inner periphery of the drum itself, and then to a seoond set of radial angularly spaced spokes or tubes at the opposite end of said drum for return of the steam. The use of such an apparatus, however, requires various c3ndensate headers in order to prevent obstruction of the steam passage by condensate forming within the parallelly spaced tubes, and
me present invention relates to improvements in heat tr s fer apparatus, e.g. cylindrical, rotatable heat tr s fer drums. ~ore particu-larly, the present invention relates to such heat transfer drums which are capable of naintaining substantialiy uniform temperatures about their en~;re surface and are of relatively simple, inexpensive construction.
The use of cylindrical drums which employ various heat transfer media to heat their outer surfaces, and the use of these drums in various processes requiring such heat to be applied to various materials, e.g.
textile web materials, disposed on the drum surface, is well known. Gener-ally, these cylindrical rotatable heat tr s fer drums have employed various heat transfer media, including steam and certain hydrocarbon liquids. For t example, it has been known to supply steam to the interior of such cylindri-cal heat transfer drums in order to heat the outer surface thereof. Thus, in U.S. Patent No. 2,932,091 issued to G.D. Day on April 12, 1960 such a rotatable drum, used for drying purposes, is disclosed. The appara-- tus there taught includes a central hollow thick walled pipe for the sup-ply of steam to radially extending distributors, and then to a large plurality of parallelly spaced tubes lying about the inner periphery of the drum itself, and then to a seoond set of radial angularly spaced spokes or tubes at the opposite end of said drum for return of the steam. The use of such an apparatus, however, requires various c3ndensate headers in order to prevent obstruction of the steam passage by condensate forming within the parallelly spaced tubes, and
- 2 - ~ r -thus disturbing the heat transfer process. It is thus also necessary to impart the steam itself through these tubes at high velocities, in order to hold dcwn condensation, and to addition~lly scavenge condensate which has formed therein. The use of steam has also raised other difficulties, -~ ' including problems of rust and corrosion, as w~ll as the necessity to em-ploy massive heavy equipment.
In an attempt to solve these problems, the use of various fluid media, such as hydrocarbons, has been suggested. For example, U.S. Patent No. 3,228,462 issued to H.C. Smith on January 11, 1966 teaches such a heat exchange apparatus, or cylindrical drum, which utilizes such fluids as a heat transfer media for heating the outer cylindrical surface thereof.
Such patent teaches concentrically disposed inner and outer shells which are ~r separated by parallel partitions, for the supply of such a medium to the surface of the cylindrical drum for allegedly uniform heating thereof.
Such patent also provides independent, internested, labyrinthine flow chan- !
nels which extend around the periphery of the drum, and thus cause the heat transfer medium to flcw in opposite directions through these channels, each such flow channel beginning at one end of the drum, and ending at the other. m us, while such patent attempts to place adjacent each other hotter and ccoler legs in order to attempt to equalize the surface temperature of the outer shell, the apparatus taught includes all feed means for hot heat transfer fluid at one end of the drum, and all return means for cool heat transfer fluid at the other. In addition, use of such m~lti-path labyrinth-ine channels, even in large numbers, requires a relatively long flow path for the medium within each such flow channel, thus permitting ~ 3 -substantial cooling of this medium during its flow therethrough.
This, in turn, requires the excessive heating of the heat transfer media prior to its entrance into any given flow channel, According to a broad aspect of the present invention, apparatus is provided for uniformly heating materials, such apparatus comprising. concentric inner and outer shells defining an annular flow space therebetween; closing means connecting the opposite ends of the inner and outer shells;
longitudinally extending portions extending between the inner and outer shells and forming a plurality of longitudinally extending compartments within the flow space; longitudinally extending baffles extending between the inner and outer shells for a portion of the length of the compartments, so that an approximately U-shaped flow path is formed within each of the compartments, the approximately U-shaped flow paths each including only two-legs consisting of an entrance leg and an exit leg, the legs being circumferentially arranged with respect to each other; feed means for supplying a heat - transfer r fluid to the entrance leg of each of such approximately U-shaped flaw paths; a return means for withdrawing a heat-transfer fluid from said exit leg of each of such approximately U-shaped flow paths; a centrally-disposed concentric feed passage adapted to be connected to a source of heat transfer fluid, said central feed passage communicating with said feed means and said return means; and such return means including an annular return plenum disposed beneath said inner sheli and communicating with said exit legs of said approximately U-shaped flow paths, and at least one radially-extending return channel communicating with said central feed passage and with said annular return plenum for removing heat-transfer fluid from said annular return plenum.
.. . ... ,. _.. _ By one variant, ~he apparatus includes dividing means within the central feed passage, for separating the feed means from the return means.
By a variation, the apparatus includes suppor~ _ struts extending from the central feed passage to the closing means.
By another variation, the closing means may be transverse end walls and preferably where such transverse end walls extend from the central feed passage to the outer shell By another variant, the annular return plenum communicates with the exit legs by means of exit apertures in the inner shell.
By one variation thereof, the apparatus includes a plurality of such exit apertures disposed in a circular path along the surface of the inner shell.
By another variant, the apparatus includes at least one return orifice communicating with the radially - extending return channel and with the annular plenum, for removing heat-transfer fluid from the annular plenum. E.
By a variation, the apparatus includes a plurality of such radially extending return channels, and preferably where such radially extending return channels are disposed at approximately 90 with respect to each other.
By another variant, the feed-means includes:
an annular feed plenum disposed beneath the inner shell and communicating with the entrance legs of the approximately U-shaped flow paths; and at least one radially extending feed channel communicating with the feed passage and with the annular feed plenum, for supplying heat-transfer fluid to the annular feed plenum.
~ ~ , ~ -4a-, .. , . ~ .. , ., . . . . ~ .. ..
By a variation tl~ereof, the apparatus includes a plurality of radial feed distributors connecting the annular feed plenum to the entrance legs of each of such approximately .-U-shaped flow paths.
By another variation, the radial feed distributors communicate with the entrance legs by means of entrance apertures in the inner shell.
By still another variation, the apparatus includes a plurality of such entrance apertures disposed in a circular path along the surface of said inner shell.
By yet another variation, the apparatus includes a plurality of such radially extending feed channels which are disposed at approximately 90 with respect to each other.
By still another variation, the closing means comprises transverse end walls and preferably where such transverse end walls extend from the central feed passage to the outer shell.
By another variation, the annular return plenum is disposed between the annular feed plenum and the inner shell.
By another variation, the apparatus includes a plurality of radial feed distributors connecting the annular feed plenum to the entrance legs of each of such approximately U-shaped flow paths, the radial feed distributors passing through the annular return plenum, and preferably where such feed distributors communicate with the entrance legs by means of entrance apertures in the inner shell, and the annular r return plenum communicates with the exit legs by means of exit apertures in the inner shell.
By still another variation, the apparatus includes a plurality of alternating entrance apertures and -4b-, ____,.,_ , _ . ~ _ . .. , . ., .. . .. .. . _ . .. .. .. , .. . . . . . . . _ _ _.
exit apertures, disposed in a circular path along the surface of the inner shell. r By yet another variation, the apparatus includes a plurality of such radially extending feed channels, and a plurality of such radially extending return channels, especially where the radially extending feed channels are disposed at approximately 90 with respect to each other, and wherein the radially extending return channels are disposed at approximately 90 with respect to each other.
By another variation, the apparatus includes dividing means within the central feed passage, for separating the feed means from said return means.
By another aspect of this inventian, apparatus - r is provided for: concentric inner and outer shells defining an annular flow space therebetween; closing means communicating with the inner and outer shells; barrier means positioned within the annular flow space for establishing a plurality of flow paths having entrance and exit legs; feed means for supplying a heat- ~-transfer fluid to the entrance legs; return means for withdrawing !-a heat-transfer fluid from the exit legs; a centrally disposed concentric fluid passage adapted to be connected to a source of heat-transfer fluid, the central feed passage communicating with the feed means and the return means; the feed means includes an annular feed plenum disposed beneath the inner shell and - communicating with the entrance legs, and at least one radially extending feed channel communicating with the central feed t passage and with the annular feed plenum, for supplying heat-transfer fluid to the annular feed plenum; and the return means includes an annular return plenum disposed beneath the inner shell and communicating with the exit legs, and at least one -4c-._ .. ..
104Z65~3 radially extending return channel communicating with the central feed passage and with the annular return plenum, for removing heat-transfer fluid from the annular return plenum.
By a variant thereof, the apparatus includes a plurality of radial feed distributors communicating with the entrance legs and with the annular feed plenum, for supplying heat-transfer fluid to said entrance legs.
Figure 1 is a perspective view of the heat transfer apparatus of an aspect of the present invention;
Figure 2 is a partial sectional longitudinal view of the feed wall end of an aspect of the present apparatus, including feed and return means;
B -4d-~ . ~ . , 104Z6S~
Figure 3 appearing on the same sheet of drawing as Figure 1 is a partial sectional transverse view taken along line 3-3 of Figure 2 showing the radial ~eed channels, and feed and return plenums, of an aspect of this invention;
Figure 4 is a disassembled, partial perspective view of the annur lar feed and return plenums and flow paths of an aspect of the present in- -vention;
Figure 5 is a development view of the approxim~tely U-shaped flow paths of an aspect of the present invention; and Figure 6 is a partial sectional longitu~inal view taken along line 6-6 of Figure 2, showing the radial feed distributors and return ori-fices of an aspect of the present invention. :
Referring to the drawings, there is shown a cylindrical, rotata-ble, heat transfer drum, generally designated 1. The drum includes concen-tric inner and outer shells, 11 and 4, respectively, which define an annu-lar flow space 12. The construction of the outer shell 4 should be of a heat conductive material, e.g. cast iron or steel. These concen~ric inner and outer shells terminate at tw~ transverse faces 2 and 3 which include annular plates 39 and 38 which connect the ends of the inner and outer shells and seal the ends of the annular flow space 12. A central conduit or feed passage 6 passes through face 3 and is journaled in concentric bearings 7 and 8 (most clearly shown in Figure 1). The opposite face 2 in-cludes a support roller 9 mounted in a ooncentric bearing 10. A concentric return pipe S disposed within the central feed passage 6 is employed for the withdrawal of the h~at transfer medium after use. The central feed passage 6 extends only a short distance within the drum past the feed face 3 terminating at a bulkhead 44. Details of this e:bodiment are provided ~045~;~
below. If desired, the bulkhead 44 could be removed, return pipe 5 could be closed, and support roller 9 could be constructed in a hollow tubular fashion to permit the return fluid to exit through face 2.
The faces 3 and 2, respectively, include support struts 40 which radiate from the central feed passage 6 outwardly to the annular plates 38 and 39, respectively.
These struts, while having other functions to be discussed below, also help to maintain the cylindrical shape of the drum even when it is subjected to considerable external pressure.
The central feed passage 6 contains radial feed openings 37 (Figure 2) connecting it with radially extending feed channels 19 which provide for the distribution of the heat transfer medium outwardly from central feed passage 6.
The support struts 40 may act as one wall of the radial feed channels 19. Preferably, there will be four such radially extending feed channels 19 disposed at approximately 90 with respect to each other and forming spokes for the transmission of the heat transfer medium from the central feed passage 6 outwardly towards the annular flow space 12.
Referring to Figure 4, each radially extending feed channel 19 terminates at an annular feed plenum 22 and communicates with therewith through openings 21. Between the annular feed plenum 22 and the concentric inner shell 11 is an annùlar return plenum 26. To provide for the flow of fresh, hot oil from the annular feed plenum 22 to the annular flow space 12 between the inner and outer shells 11 and 14, respectively, there are provided radial feed distributors 24.
~ ~4~
The radial feed distributors 24 pass through the annular return plenum 26 and are connected at one end to the annular feed plenum 22 through openings 23, and at the opposite end to the concentric inner shell 11 through entrance apertures 25. There is therefore no contact or leakage between fresh hot feed oil passing through these radial feed distributors 24 and oil within the annular return plenum 26 which, as discussed below, has already been used to heat the outer shell 4 and has thus cooled somewhat.
Referring to Figure 5, the entrance aperture 25 in each radial feed distributor 24 permits the passage of heat transfer media into the annular flow space 12 between the inner and outer shells 11 and 14, respectively. The annular flow space 12 is divided into longitudinal arcuate compartments by partitions 30 which extend between inner and outer shells 11 and 4 and from the annular plates 38 and 39. One entrance aperture 25 is provided for passage of heat transfer media into each such longitudinally extending compartment formed by two adjacent longitudinal partitions 30. Between each pair of longitudinal partitions 30 is provided a longitudinally extending baffle 31 which extends between the inner and outer shells, 11 and 4, but only for a portion of the length of the longitudinally extending compartments, and terminates a short distance from the end face 2. Substantially U-shaped flow paths are thereby provided within each longitudinally extending compartment thus permitting the flow of hot heat transfer fluid therethrough as shown by the arrows in Figure 5.
Bach such substantially U-~haped flow path includes an entrance /
- ~04~S8 leg 45 and an exit leg 46, the entrance leg 45 of each such flow path being connected to the radial feed distributor 24 through entrance aperture 25, while the exit leg 46 of each such flow path is connected to the annular return plenum 26 through exit aperture 32.
As can best be seen from Figure 2, the annular return plenum 26 is of a shape substantially the same as the annular feed plenum 22 but is of a size extending longitudinally from the feed face 3 a greater distance than does the annular feed plenum 22. There are provided in the annular return plenum 26 return orifices 27 which communicate with radially extending return channels 20. The return channels 20 are connected to the central feed passage 6 through radial return openings 28. Preferably, there will be four approximately : radially extending retur~ channels 20, again forming spokes radiating from the central feed conduit 6, and they will be disposed at approximately 90 with respect to each other.
Angular disposition of these return channels 20 is preferred in order to assure that each such approximately radially extending return channel 20 is connected to the central feed pas-~age 6 at a point substantially downstream from the radial feed openings 37 which connect with the radially extending feed channels 19.
Within the central feed passage 6 between the radial feed openings 37 and the radial return openings 28 there is provided an internally threaded annular spacer 13 (the threads being designated 14) which receives an externally threaded return pipe 5 to form coaxial return passage for heat transfer media being withdrawn from _~ _ ~4~a3 the drum. All heat transfer media flowing into the annular space between the return pipe 5 and the central feed passage 6 will flow outwardly through the radial openings 37.
The heat transfer medium, upon return, will again enter the central feed passage 6 at a point 17 downstream therefrom, upon passing through the radial return openings 28, and will then be withdrawn through return pipe 5.
The drum is also provided with spaced radially extending struts 18 formed as spokes radiating from the central feed passage 6 to provide additional support for the inner and outer shells of the drum, and to further withstand external pressure exerted thereon.
Referring to Figure 2, heat transfer media entering the drum through the annular space between central feed passage 6 and return pipe 5 will flow through the annular flow space 12 formed between the inner and outer shells, 11 and 4, respectively, in a manner so as to achieve substan-: tially uniform heating of the external or outer shell 4.
That is, the fresh, hot, heat transfer medium will pass through the annular space formed in the central, coaxialfeed passage 6 by the return pipe 5, and enter the drum 1. All of this fresh, hot oil will then pass through four radial feed openings 37 extending through the central feed passage 6 into radially extending feed channels 19 and then through openings 21 into annular feed plenum 22.
The fre~h heat transfer medium passing through openings 21 is then distributed to each substantially U-shaped flow path in the annular flow space 12 formed between inner and outer shells 11 and 4, respectively, by passing through ~04~o openings 23, radial feed distributors 24, and entrance apertures 25 into the annular flow space 12. The hot oil passing through each entrance aperture 25 will then travel through a substantially U-shaped flow path between the inner and outer shells formed by longitudinally extending partitions 30 and baffles 31. After traveling through such a flow path from the feed face 3 along the periphery of the drum along entrance leg 45 to the return face 2, around the baffle 31, and similarly along return leg 46, back to the feed face
In an attempt to solve these problems, the use of various fluid media, such as hydrocarbons, has been suggested. For example, U.S. Patent No. 3,228,462 issued to H.C. Smith on January 11, 1966 teaches such a heat exchange apparatus, or cylindrical drum, which utilizes such fluids as a heat transfer media for heating the outer cylindrical surface thereof.
Such patent teaches concentrically disposed inner and outer shells which are ~r separated by parallel partitions, for the supply of such a medium to the surface of the cylindrical drum for allegedly uniform heating thereof.
Such patent also provides independent, internested, labyrinthine flow chan- !
nels which extend around the periphery of the drum, and thus cause the heat transfer medium to flcw in opposite directions through these channels, each such flow channel beginning at one end of the drum, and ending at the other. m us, while such patent attempts to place adjacent each other hotter and ccoler legs in order to attempt to equalize the surface temperature of the outer shell, the apparatus taught includes all feed means for hot heat transfer fluid at one end of the drum, and all return means for cool heat transfer fluid at the other. In addition, use of such m~lti-path labyrinth-ine channels, even in large numbers, requires a relatively long flow path for the medium within each such flow channel, thus permitting ~ 3 -substantial cooling of this medium during its flow therethrough.
This, in turn, requires the excessive heating of the heat transfer media prior to its entrance into any given flow channel, According to a broad aspect of the present invention, apparatus is provided for uniformly heating materials, such apparatus comprising. concentric inner and outer shells defining an annular flow space therebetween; closing means connecting the opposite ends of the inner and outer shells;
longitudinally extending portions extending between the inner and outer shells and forming a plurality of longitudinally extending compartments within the flow space; longitudinally extending baffles extending between the inner and outer shells for a portion of the length of the compartments, so that an approximately U-shaped flow path is formed within each of the compartments, the approximately U-shaped flow paths each including only two-legs consisting of an entrance leg and an exit leg, the legs being circumferentially arranged with respect to each other; feed means for supplying a heat - transfer r fluid to the entrance leg of each of such approximately U-shaped flaw paths; a return means for withdrawing a heat-transfer fluid from said exit leg of each of such approximately U-shaped flow paths; a centrally-disposed concentric feed passage adapted to be connected to a source of heat transfer fluid, said central feed passage communicating with said feed means and said return means; and such return means including an annular return plenum disposed beneath said inner sheli and communicating with said exit legs of said approximately U-shaped flow paths, and at least one radially-extending return channel communicating with said central feed passage and with said annular return plenum for removing heat-transfer fluid from said annular return plenum.
.. . ... ,. _.. _ By one variant, ~he apparatus includes dividing means within the central feed passage, for separating the feed means from the return means.
By a variation, the apparatus includes suppor~ _ struts extending from the central feed passage to the closing means.
By another variation, the closing means may be transverse end walls and preferably where such transverse end walls extend from the central feed passage to the outer shell By another variant, the annular return plenum communicates with the exit legs by means of exit apertures in the inner shell.
By one variation thereof, the apparatus includes a plurality of such exit apertures disposed in a circular path along the surface of the inner shell.
By another variant, the apparatus includes at least one return orifice communicating with the radially - extending return channel and with the annular plenum, for removing heat-transfer fluid from the annular plenum. E.
By a variation, the apparatus includes a plurality of such radially extending return channels, and preferably where such radially extending return channels are disposed at approximately 90 with respect to each other.
By another variant, the feed-means includes:
an annular feed plenum disposed beneath the inner shell and communicating with the entrance legs of the approximately U-shaped flow paths; and at least one radially extending feed channel communicating with the feed passage and with the annular feed plenum, for supplying heat-transfer fluid to the annular feed plenum.
~ ~ , ~ -4a-, .. , . ~ .. , ., . . . . ~ .. ..
By a variation tl~ereof, the apparatus includes a plurality of radial feed distributors connecting the annular feed plenum to the entrance legs of each of such approximately .-U-shaped flow paths.
By another variation, the radial feed distributors communicate with the entrance legs by means of entrance apertures in the inner shell.
By still another variation, the apparatus includes a plurality of such entrance apertures disposed in a circular path along the surface of said inner shell.
By yet another variation, the apparatus includes a plurality of such radially extending feed channels which are disposed at approximately 90 with respect to each other.
By still another variation, the closing means comprises transverse end walls and preferably where such transverse end walls extend from the central feed passage to the outer shell.
By another variation, the annular return plenum is disposed between the annular feed plenum and the inner shell.
By another variation, the apparatus includes a plurality of radial feed distributors connecting the annular feed plenum to the entrance legs of each of such approximately U-shaped flow paths, the radial feed distributors passing through the annular return plenum, and preferably where such feed distributors communicate with the entrance legs by means of entrance apertures in the inner shell, and the annular r return plenum communicates with the exit legs by means of exit apertures in the inner shell.
By still another variation, the apparatus includes a plurality of alternating entrance apertures and -4b-, ____,.,_ , _ . ~ _ . .. , . ., .. . .. .. . _ . .. .. .. , .. . . . . . . . _ _ _.
exit apertures, disposed in a circular path along the surface of the inner shell. r By yet another variation, the apparatus includes a plurality of such radially extending feed channels, and a plurality of such radially extending return channels, especially where the radially extending feed channels are disposed at approximately 90 with respect to each other, and wherein the radially extending return channels are disposed at approximately 90 with respect to each other.
By another variation, the apparatus includes dividing means within the central feed passage, for separating the feed means from said return means.
By another aspect of this inventian, apparatus - r is provided for: concentric inner and outer shells defining an annular flow space therebetween; closing means communicating with the inner and outer shells; barrier means positioned within the annular flow space for establishing a plurality of flow paths having entrance and exit legs; feed means for supplying a heat- ~-transfer fluid to the entrance legs; return means for withdrawing !-a heat-transfer fluid from the exit legs; a centrally disposed concentric fluid passage adapted to be connected to a source of heat-transfer fluid, the central feed passage communicating with the feed means and the return means; the feed means includes an annular feed plenum disposed beneath the inner shell and - communicating with the entrance legs, and at least one radially extending feed channel communicating with the central feed t passage and with the annular feed plenum, for supplying heat-transfer fluid to the annular feed plenum; and the return means includes an annular return plenum disposed beneath the inner shell and communicating with the exit legs, and at least one -4c-._ .. ..
104Z65~3 radially extending return channel communicating with the central feed passage and with the annular return plenum, for removing heat-transfer fluid from the annular return plenum.
By a variant thereof, the apparatus includes a plurality of radial feed distributors communicating with the entrance legs and with the annular feed plenum, for supplying heat-transfer fluid to said entrance legs.
Figure 1 is a perspective view of the heat transfer apparatus of an aspect of the present invention;
Figure 2 is a partial sectional longitudinal view of the feed wall end of an aspect of the present apparatus, including feed and return means;
B -4d-~ . ~ . , 104Z6S~
Figure 3 appearing on the same sheet of drawing as Figure 1 is a partial sectional transverse view taken along line 3-3 of Figure 2 showing the radial ~eed channels, and feed and return plenums, of an aspect of this invention;
Figure 4 is a disassembled, partial perspective view of the annur lar feed and return plenums and flow paths of an aspect of the present in- -vention;
Figure 5 is a development view of the approxim~tely U-shaped flow paths of an aspect of the present invention; and Figure 6 is a partial sectional longitu~inal view taken along line 6-6 of Figure 2, showing the radial feed distributors and return ori-fices of an aspect of the present invention. :
Referring to the drawings, there is shown a cylindrical, rotata-ble, heat transfer drum, generally designated 1. The drum includes concen-tric inner and outer shells, 11 and 4, respectively, which define an annu-lar flow space 12. The construction of the outer shell 4 should be of a heat conductive material, e.g. cast iron or steel. These concen~ric inner and outer shells terminate at tw~ transverse faces 2 and 3 which include annular plates 39 and 38 which connect the ends of the inner and outer shells and seal the ends of the annular flow space 12. A central conduit or feed passage 6 passes through face 3 and is journaled in concentric bearings 7 and 8 (most clearly shown in Figure 1). The opposite face 2 in-cludes a support roller 9 mounted in a ooncentric bearing 10. A concentric return pipe S disposed within the central feed passage 6 is employed for the withdrawal of the h~at transfer medium after use. The central feed passage 6 extends only a short distance within the drum past the feed face 3 terminating at a bulkhead 44. Details of this e:bodiment are provided ~045~;~
below. If desired, the bulkhead 44 could be removed, return pipe 5 could be closed, and support roller 9 could be constructed in a hollow tubular fashion to permit the return fluid to exit through face 2.
The faces 3 and 2, respectively, include support struts 40 which radiate from the central feed passage 6 outwardly to the annular plates 38 and 39, respectively.
These struts, while having other functions to be discussed below, also help to maintain the cylindrical shape of the drum even when it is subjected to considerable external pressure.
The central feed passage 6 contains radial feed openings 37 (Figure 2) connecting it with radially extending feed channels 19 which provide for the distribution of the heat transfer medium outwardly from central feed passage 6.
The support struts 40 may act as one wall of the radial feed channels 19. Preferably, there will be four such radially extending feed channels 19 disposed at approximately 90 with respect to each other and forming spokes for the transmission of the heat transfer medium from the central feed passage 6 outwardly towards the annular flow space 12.
Referring to Figure 4, each radially extending feed channel 19 terminates at an annular feed plenum 22 and communicates with therewith through openings 21. Between the annular feed plenum 22 and the concentric inner shell 11 is an annùlar return plenum 26. To provide for the flow of fresh, hot oil from the annular feed plenum 22 to the annular flow space 12 between the inner and outer shells 11 and 14, respectively, there are provided radial feed distributors 24.
~ ~4~
The radial feed distributors 24 pass through the annular return plenum 26 and are connected at one end to the annular feed plenum 22 through openings 23, and at the opposite end to the concentric inner shell 11 through entrance apertures 25. There is therefore no contact or leakage between fresh hot feed oil passing through these radial feed distributors 24 and oil within the annular return plenum 26 which, as discussed below, has already been used to heat the outer shell 4 and has thus cooled somewhat.
Referring to Figure 5, the entrance aperture 25 in each radial feed distributor 24 permits the passage of heat transfer media into the annular flow space 12 between the inner and outer shells 11 and 14, respectively. The annular flow space 12 is divided into longitudinal arcuate compartments by partitions 30 which extend between inner and outer shells 11 and 4 and from the annular plates 38 and 39. One entrance aperture 25 is provided for passage of heat transfer media into each such longitudinally extending compartment formed by two adjacent longitudinal partitions 30. Between each pair of longitudinal partitions 30 is provided a longitudinally extending baffle 31 which extends between the inner and outer shells, 11 and 4, but only for a portion of the length of the longitudinally extending compartments, and terminates a short distance from the end face 2. Substantially U-shaped flow paths are thereby provided within each longitudinally extending compartment thus permitting the flow of hot heat transfer fluid therethrough as shown by the arrows in Figure 5.
Bach such substantially U-~haped flow path includes an entrance /
- ~04~S8 leg 45 and an exit leg 46, the entrance leg 45 of each such flow path being connected to the radial feed distributor 24 through entrance aperture 25, while the exit leg 46 of each such flow path is connected to the annular return plenum 26 through exit aperture 32.
As can best be seen from Figure 2, the annular return plenum 26 is of a shape substantially the same as the annular feed plenum 22 but is of a size extending longitudinally from the feed face 3 a greater distance than does the annular feed plenum 22. There are provided in the annular return plenum 26 return orifices 27 which communicate with radially extending return channels 20. The return channels 20 are connected to the central feed passage 6 through radial return openings 28. Preferably, there will be four approximately : radially extending retur~ channels 20, again forming spokes radiating from the central feed conduit 6, and they will be disposed at approximately 90 with respect to each other.
Angular disposition of these return channels 20 is preferred in order to assure that each such approximately radially extending return channel 20 is connected to the central feed pas-~age 6 at a point substantially downstream from the radial feed openings 37 which connect with the radially extending feed channels 19.
Within the central feed passage 6 between the radial feed openings 37 and the radial return openings 28 there is provided an internally threaded annular spacer 13 (the threads being designated 14) which receives an externally threaded return pipe 5 to form coaxial return passage for heat transfer media being withdrawn from _~ _ ~4~a3 the drum. All heat transfer media flowing into the annular space between the return pipe 5 and the central feed passage 6 will flow outwardly through the radial openings 37.
The heat transfer medium, upon return, will again enter the central feed passage 6 at a point 17 downstream therefrom, upon passing through the radial return openings 28, and will then be withdrawn through return pipe 5.
The drum is also provided with spaced radially extending struts 18 formed as spokes radiating from the central feed passage 6 to provide additional support for the inner and outer shells of the drum, and to further withstand external pressure exerted thereon.
Referring to Figure 2, heat transfer media entering the drum through the annular space between central feed passage 6 and return pipe 5 will flow through the annular flow space 12 formed between the inner and outer shells, 11 and 4, respectively, in a manner so as to achieve substan-: tially uniform heating of the external or outer shell 4.
That is, the fresh, hot, heat transfer medium will pass through the annular space formed in the central, coaxialfeed passage 6 by the return pipe 5, and enter the drum 1. All of this fresh, hot oil will then pass through four radial feed openings 37 extending through the central feed passage 6 into radially extending feed channels 19 and then through openings 21 into annular feed plenum 22.
The fre~h heat transfer medium passing through openings 21 is then distributed to each substantially U-shaped flow path in the annular flow space 12 formed between inner and outer shells 11 and 4, respectively, by passing through ~04~o openings 23, radial feed distributors 24, and entrance apertures 25 into the annular flow space 12. The hot oil passing through each entrance aperture 25 will then travel through a substantially U-shaped flow path between the inner and outer shells formed by longitudinally extending partitions 30 and baffles 31. After traveling through such a flow path from the feed face 3 along the periphery of the drum along entrance leg 45 to the return face 2, around the baffle 31, and similarly along return leg 46, back to the feed face
3, the oil will then pass through exit aperture 32. The oil entering each substantially U-shaped flow path through successive entrance apertures 25 will thus be fresh, hot oil, and no oil will travel through more than one such substantially U-shaped flow path prior to returning through exit apertures 32, for withdrawal or return. In addition, since the oil exits at the same side of the drum as it enters, the average temperature along the length of each compartment will be substantially uniform.
The return of the heat transfer media will then be accomplished by its flow through exit apertures 32 into the annular return plenum 26. The oil in the annular return plenum, while still relatively hot, will be cooler than the fresh, hot oil passing through the radial feed distributors 24, which extend through the annular return plenum 26.
The cooling of the fresh, hot oil is thus kept to an absolute minimum, only a small degree of heat transfer occurring through the walls of these relatively short radial feed di~tributors 24. The heat trànsfer medium then passes 1~42658 through openings 27 into each angularly radially extending return channel 20, and through radial return openings 28, into central feed passage 6, at a point 17 downstream, with respect to the feed face 3, from the threaded annular spacer 13. The heat transfer medium or hot oil, now som~what oooled will then flow through return pipe 5, prevented from further flow longitud-inally through the drum by the presence of bulkhead 44, for withdrawal from .
the drum, to be either discarded, used for other purposes, or reheated and recirculated through the drum.
i.
The return of the heat transfer media will then be accomplished by its flow through exit apertures 32 into the annular return plenum 26. The oil in the annular return plenum, while still relatively hot, will be cooler than the fresh, hot oil passing through the radial feed distributors 24, which extend through the annular return plenum 26.
The cooling of the fresh, hot oil is thus kept to an absolute minimum, only a small degree of heat transfer occurring through the walls of these relatively short radial feed di~tributors 24. The heat trànsfer medium then passes 1~42658 through openings 27 into each angularly radially extending return channel 20, and through radial return openings 28, into central feed passage 6, at a point 17 downstream, with respect to the feed face 3, from the threaded annular spacer 13. The heat transfer medium or hot oil, now som~what oooled will then flow through return pipe 5, prevented from further flow longitud-inally through the drum by the presence of bulkhead 44, for withdrawal from .
the drum, to be either discarded, used for other purposes, or reheated and recirculated through the drum.
i.
Claims (37)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. Apparatus for uniformly heating materials, said apparatus comprising:
a. concentric inner and outer shells defining an annular flow space therebetween;
b. closing means connecting the opposite ends of said inner and outer shells;
c. longitudinally-extending portions extending between said inner and outer shells and forming a plurality of longitudinally-extending compartments within said flow space;
d. longitudinally-extending baffles extending between said inner and outer shells for a portion of the length of said compartments, so that an approximately U-shaped flow path is formed within each of said compartments, said approximately U-shaped flow paths each including only two legs consisting of an entrance leg and an exit leg, said legs being circumferentially arranged with respect to each other;
e. feed means for supplying a heat-transfer fluid to said entrance leg of each of said approximately U-shaped flow paths;
f. return means for withdrawing a heat-transfer fluid from said exit leg of each of said approximately U-shaped flow paths;
g. a centrally-disposed concentric feed passage adapted to be connected to a source of heat transfer fluid, said central feed passage communicating with said feed means and said return means; and h. said return means including an annular return plenum disposed beneath said inner shell and communicating with said exit legs of said approximately U-shaped flow paths, and at least one radially-extending return channel communicating with said central feed passage and with said annular return plenum for removing heat-transfer fluid from said annular return plenum.
a. concentric inner and outer shells defining an annular flow space therebetween;
b. closing means connecting the opposite ends of said inner and outer shells;
c. longitudinally-extending portions extending between said inner and outer shells and forming a plurality of longitudinally-extending compartments within said flow space;
d. longitudinally-extending baffles extending between said inner and outer shells for a portion of the length of said compartments, so that an approximately U-shaped flow path is formed within each of said compartments, said approximately U-shaped flow paths each including only two legs consisting of an entrance leg and an exit leg, said legs being circumferentially arranged with respect to each other;
e. feed means for supplying a heat-transfer fluid to said entrance leg of each of said approximately U-shaped flow paths;
f. return means for withdrawing a heat-transfer fluid from said exit leg of each of said approximately U-shaped flow paths;
g. a centrally-disposed concentric feed passage adapted to be connected to a source of heat transfer fluid, said central feed passage communicating with said feed means and said return means; and h. said return means including an annular return plenum disposed beneath said inner shell and communicating with said exit legs of said approximately U-shaped flow paths, and at least one radially-extending return channel communicating with said central feed passage and with said annular return plenum for removing heat-transfer fluid from said annular return plenum.
2. The apparatus of claim 1 including dividing means within said central feed passage, for separating said feed means from said return means.
3. The apparatus of claim 1 including support struts extending from said central feed passage to said closing means.
4. The apparatus of claim 1 wherein said closing means comprises transverse end walls.
5. The apparatus of claim 4 wherein said transverse end walls extend from said central feed passage to said outer shell.
6. The apparatus of claim 1 wherein said annular return plenum communicates with said exit legs by means of exit apertures in said inner shell.
7. The apparatus of claim 6 including a plurality of said exit apertures disposed in a cicular path along the surface of said inner shell.
8. The apparatus of claim 1 including at least one return orifice communicating with said radially extending return channel and with said annular return plenum, for removing heat-transfer fluid from said annular return plenum.
9. The apparatus of claim 1 including a plurality of said radially extending return channels.
10. The apparatus of claim 9 wherein said radially extending return channels are disposed at approximately 90° with respect to each other.
11. The apparatus of claim 1 wherein said feed means includes:
a. an annular feed plenum disposed beneath said inner shell and communicating with said entrance legs of said approximately U-shaped flow paths;
and b. at least one radially extending feed channel communicating with said feed passage and with said annular feed plenum, for supplying heat-transfer fluid to said annular feed plenum.
a. an annular feed plenum disposed beneath said inner shell and communicating with said entrance legs of said approximately U-shaped flow paths;
and b. at least one radially extending feed channel communicating with said feed passage and with said annular feed plenum, for supplying heat-transfer fluid to said annular feed plenum.
12. The apparatus of claim 11 including a plurality of radial feed distributors connecting said annular feed plenum to said entrance legs of each of said approximately U-shaped flow paths.
13. The apparatus of claim 12 wherein said radial feed distributors communicate with said entrance legs by means of entrance apertures in said inner shell.
14. The apparatus of claim 13 including a plurality of said-entrance apertures disposed in a circular path along the surface of said inner shell.
15. The apparatus of claim 11 including a plurality of said radially extending feed channels.
16. The apparatus of claim 15 wherein said radially extending feed channels are disposed at approximately 90° with respect to each other.
17. The apparatus of claim 11 wherein said closing means comprises transverse end walls.
18. The apparatus of claim 17 wherein said transverse end walls extend from said central feed passage to said outer shell.
19. The apparatus of claim 11 including dividing means within said central feed passage, for separating said feed means from said return means.
20. The apparatus of claim 11 including support struts extending from said central feed passage to said closing means.
21. The apparatus of claim 11 wherein said annular return plenum is disposed between said annular feed plenum and said inner shell.
22. The apparatus of claim 21 including a plurality of radial feed distributors connecting said annular feed plenum to said entrance legs of each of said approximately U-shaped flow paths, said radial feed distributors passing through said annular return plenum.
23. The apparatus of claim 22 wherein said radial feed distributors communicate with said entrance legs by means of entrance apertures in said inner shell, and said annular return plenum communicates with said exit legs by means of exit apertures in said inner shell.
24. The apparatus of claim 23 including a plurality of alternating entrance apertures and exit apertures, disposed in a circular path along the surface of said inner shell.
25. The apparatus of claim 11 including a plurality of said radially extending feed channels, and a plurality of said radially extending return channels.
26. The apparatus of claim 25 wherein said radially extending feed channels are disposed at approximately 90° with respect to each other, and wherein said radially extending return channels are disposed at approximately 90°
with respect to each other.
with respect to each other.
27. The apparatus of claim 11 including dividing means within said central feed passage, for separating said feed means from said return means.
28. The apparatus of claim 11 including support struts extending from said central feed passage to said closing means.
29. Apparatus for uniformly heating materials, said apparatus comprising:
a. concentric inner and outer shells defining an annular flow space therebetween;
b. closing means communicating with said inner and outer shells;
c. barrier means postioned within said annular flow space for establishing a plurality of flow paths having entrance and exit legs;
d. feed means for supplying a heat-transfer fluid to said entrance legs;
e. return means for withdrawing a heat-transfer fluid from said exit legs;
f. a centrally disposed concentric feed passage adapted to be connected to a source of heat-transfer fluid, said central feed passage communicating with said feed means and said return means;
g. said feed means includes an annular feed plenum disposed beneath said inner shell and communicating with said entrance legs, and at least one radially extending feed channel communicating with said central feed passage and with said annular feed plenum, for supplying heat-transfer fluid to said annular feed plenum; and h. said return means includes an annular return plenum disposed beneath said inner shell and communicating with said exit legs, and at least one radially extending return channel communicating with said central feed passage and with said annular return plenum, for removing heat-transfer fluid from said annular return plenum.
a. concentric inner and outer shells defining an annular flow space therebetween;
b. closing means communicating with said inner and outer shells;
c. barrier means postioned within said annular flow space for establishing a plurality of flow paths having entrance and exit legs;
d. feed means for supplying a heat-transfer fluid to said entrance legs;
e. return means for withdrawing a heat-transfer fluid from said exit legs;
f. a centrally disposed concentric feed passage adapted to be connected to a source of heat-transfer fluid, said central feed passage communicating with said feed means and said return means;
g. said feed means includes an annular feed plenum disposed beneath said inner shell and communicating with said entrance legs, and at least one radially extending feed channel communicating with said central feed passage and with said annular feed plenum, for supplying heat-transfer fluid to said annular feed plenum; and h. said return means includes an annular return plenum disposed beneath said inner shell and communicating with said exit legs, and at least one radially extending return channel communicating with said central feed passage and with said annular return plenum, for removing heat-transfer fluid from said annular return plenum.
30. The apparatus of claim 29 wherein said closing means comprises end walls extending from said central feed passage to said outer shell.
31. The apparatus of claim 29 wherein said annular return plenum is disposed between said annular feed plenum and said inner shell.
32. The apparatus of claim 29 including a plurality of said radially extending feed channels.
33. The apparatus of claim 29 including a plurality of said radially extending return channels.
34. The apparatus of claim 29 including at least one return orifice communicating with said radially extending return channel and with said annular return plenum, for removing heat-transfer fluid from said annular return plenum.
35. The apparatus of claim 29 including a plurality of radial feed distributors communicating with said entrance legs and with said annular feed plenum, for supplying heat-transfer fluid to said entrance legs.
36. The apparatus of claim 29 wherein said annular return plenum communicates with said exit legs by means of exit apertures in said inner shell.
37. The apparatus of claim 35 wherein said radial feed distributors communicate with said entrance legs by means of entrance apertures in said inner shell.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US413794A US3903961A (en) | 1973-11-08 | 1973-11-08 | Hot oil drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1042658A true CA1042658A (en) | 1978-11-21 |
Family
ID=23638662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA211,952A Expired CA1042658A (en) | 1973-11-08 | 1974-10-22 | Hot oil drum |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3903961A (en) |
| JP (2) | JPS5074856A (en) |
| CA (1) | CA1042658A (en) |
| DE (1) | DE2452734C3 (en) |
| GB (1) | GB1466417A (en) |
| NO (1) | NO144463C (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1047818B (en) * | 1974-10-23 | 1980-10-20 | Vepa Ag | ROLLER HEATED AS A WHEEL FOR EXAMPLE ON IRONING |
| SE423118B (en) * | 1978-03-31 | 1982-04-13 | Karlstad Mekaniska Ab | PROCEDURE AND DEVICE FOR CONSOLIDATION AND DRYING OF A MOISTURIZED POROS COAT |
| FR2539051B1 (en) * | 1983-01-11 | 1990-02-16 | Ensiaa | THERMAL TREATMENT DEVICE WITH A SCRAPED SURFACE INCORPORATING A DOUBLE WALL |
| US4654021A (en) * | 1985-10-29 | 1987-03-31 | Mobil Oil Corporation | Making intermittent orientation draw tape for bags |
| DE3643496C2 (en) * | 1986-12-19 | 1994-06-09 | Timmer Ingbuero Gmbh | Fluid machine for conveying two media with heat transfer between the media |
| DE3838726C3 (en) * | 1988-11-15 | 1997-03-13 | Schwaebische Huettenwerke Gmbh | Heating or cooling roller |
| DE9014117U1 (en) * | 1990-10-11 | 1992-02-06 | Eduard Küsters Maschinenfabrik GmbH & Co KG, 4150 Krefeld | Temperable roller |
| FR2674174A1 (en) * | 1991-03-22 | 1992-09-25 | Michelin & Cie | IMPROVED CYLINDER FOR RUBBER MIXER. |
| NO179727C (en) * | 1994-02-21 | 1996-12-04 | Kvaerner Eureka As | Method of heating a mantle work surface on a rotating roller, as well as a rotatable roller |
| DE4407239A1 (en) * | 1994-03-04 | 1995-09-07 | Schwaebische Huettenwerke Gmbh | Steam heated roller |
| FI960702A0 (en) * | 1996-02-16 | 1996-02-16 | Ppr Consulting Ltd Oy | Torkanordning Foer fiberbanor |
| NO315392B1 (en) * | 2002-01-11 | 2003-08-25 | Kvaerner Eureka As | Method of heating a mantle work surface on a rotating roller and rotatable roller for heating a web material |
| ES2288413B1 (en) * | 2006-06-16 | 2008-11-01 | Girbau, S.A. | IRONING ROLLER. |
| CN102383330A (en) * | 2011-11-09 | 2012-03-21 | 山东鲁台集团枣庄市鲁都造纸机械有限公司 | Steel welding heat conducting oil drying cylinder |
| CN104075553B (en) * | 2014-06-12 | 2016-03-30 | 吴江久美微纤织造有限公司 | A kind of textile machinery warm-up mill |
| CN105890289A (en) * | 2016-06-06 | 2016-08-24 | 林强 | Balanced convection type steel-made heat conducting oil drying cylinder |
| DE102016216245A1 (en) * | 2016-08-30 | 2018-03-01 | Zf Friedrichshafen Ag | Arrangement for fluid temperature control |
| CN107974817B (en) * | 2017-11-27 | 2020-04-07 | 上海乔力雅洗衣器材有限公司 | High-speed drum-type ironing machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1914084A (en) * | 1931-03-18 | 1933-06-13 | Ellis Herbert Walter | Apparatus for cooling oils or other fluids |
| US2867414A (en) * | 1955-12-23 | 1959-01-06 | Mead Corp | Chilling roll for paper coating machines |
| US2936158A (en) * | 1958-12-24 | 1960-05-10 | Kentile Inc | Heat exchange rolls |
| US3305742A (en) * | 1963-09-10 | 1967-02-21 | Varian Associates | High frequency electron discharge device and cooling means therefor |
| US3228462A (en) * | 1965-04-09 | 1966-01-11 | Hupp Corp | Heat exchange apparatus |
-
1973
- 1973-11-08 US US413794A patent/US3903961A/en not_active Expired - Lifetime
-
1974
- 1974-10-16 NO NO743721A patent/NO144463C/en unknown
- 1974-10-22 CA CA211,952A patent/CA1042658A/en not_active Expired
- 1974-10-24 GB GB4610874A patent/GB1466417A/en not_active Expired
- 1974-11-07 DE DE2452734A patent/DE2452734C3/en not_active Expired
- 1974-11-07 JP JP49128523A patent/JPS5074856A/ja active Pending
-
1983
- 1983-05-20 JP JP1983075929U patent/JPS5939595Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2452734C3 (en) | 1980-06-04 |
| NO144463C (en) | 1981-09-02 |
| JPS5939595Y2 (en) | 1984-11-05 |
| DE2452734B2 (en) | 1979-09-20 |
| GB1466417A (en) | 1977-03-09 |
| DE2452734A1 (en) | 1975-05-15 |
| NO743721L (en) | 1975-06-02 |
| JPS5918287U (en) | 1984-02-03 |
| JPS5074856A (en) | 1975-06-19 |
| NO144463B (en) | 1981-05-25 |
| US3903961A (en) | 1975-09-09 |
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