EP0162381B1 - Tambour pour chauffer ou refroidir - Google Patents
Tambour pour chauffer ou refroidir Download PDFInfo
- Publication number
- EP0162381B1 EP0162381B1 EP85105742A EP85105742A EP0162381B1 EP 0162381 B1 EP0162381 B1 EP 0162381B1 EP 85105742 A EP85105742 A EP 85105742A EP 85105742 A EP85105742 A EP 85105742A EP 0162381 B1 EP0162381 B1 EP 0162381B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roll
- jacket
- guide
- wheel
- roller
- 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
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/02—Drying on cylinders
- D21F5/022—Heating the cylinders
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D11/00—Heat-exchange apparatus employing moving conduits
- F28D11/02—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller
Definitions
- the invention relates to a cooling or heating roller with a roller jacket and a guide jacket fastened in the interior of the roller and rotatable with the roller jacket, with channels running in the roller bearings for supplying and removing a liquid heat transfer medium to and from the roller interior, with one between the guide - And the roll shell arranged cylinder gap for guiding the circulating flow along the roll shell and with a pump wheel for circulating the heat transfer medium which essentially completely fills the inside of the roll.
- the guide jacket is arranged in a fixed manner, and it also protrudes from it an axially directed partition wall, which is also stationary, to the roller jacket.
- a conveyor wheel rotating with the roller jacket is provided, which together with the dividing wall forms the circulating device.
- the invention is therefore based on the object of providing a device of the type mentioned at the outset, which is less complex, in particular with regard to the setting of different circulation speeds.
- the solution according to the invention is that the pump wheel is fixed.
- the pump wheel is preferably arranged within the guide casing as an axial wheel.
- a guide device can be provided, which can be designed in a particularly simple manner in the case of an axial wheel located within the guide jacket as a guide grid connected to the guide jacket.
- a pump wheel fixedly arranged inside the roller is considerably less complex than a circulation pump equipped with a special drive, in particular also taking into account the necessary size of the flow cross-sections in the medium bushings in the roller bearings.
- a further gradation of the circulation speed can be achieved by the optional assignment of guide devices.
- the design of the circulators which is independent of the direction of rotation, is carried out according to the principles familiar in fluid technology. For example, in the case of a radial wheel, the direction of rotation of the delivery rate is achieved by using radially extending blades.
- the cooling or heating roller is formed by a roller shell 1, end walls 2, 3 and generally at 4 or 5 indicated bearings, which allow the roller to be driven or to rotate with a guided web.
- the roller includes the hollow roller interior 6, to which a liquid heat transfer medium is fed and discharged in a known manner via the bearings 4 and 5 in such a way that it is essentially completely filled by the liquid medium.
- the supply and discharge quantity of the medium is measured exclusively according to the amount of heat to be exchanged, regardless of the speed required on the roller jacket to achieve the required heat transfer.
- a guide jacket 7 is fastened in a suitable manner within the roll interior 6 such that it rotates with the roll. It includes a cylinder gap 8 with the roll shell, in which the heat transfer medium is brought to the speed required for heat transfer in the axial direction by internal circulation. It must be assumed that the heat transfer medium has a circumferential speed which is not significantly lower than that of the roll shell and the guide cylinder due to the frictional conditions and any guide means present.
- a pump wheel 9 Arranged inside the guide cylinder is a pump wheel 9 designed as an axial wheel, which is seated on a fixed shaft 10 which is guided through the bearing 4 to the outside and is held there coaxially with the bearing and the roller.
- a grid 11 can be connected upstream or downstream of the pump wheel 9 on one side or the other as a guide apparatus.
- the pump wheel 9 causes circulation inside the roller, whose direction is indicated by a solid or dashed arrow.
- the pump wheel and the diffuser can easily be dimensioned so that the axial flow velocities at the roll shell reach 0.5 to 5 times the circumferential roll speed. Since no drive is required for the fixed pump wheel and both this and the guide device 11 which may be provided can be made very simple, this result is achieved with very little effort, it being no problem to produce pump wheels and guide grids in different sizes for different roller dimensions and to keep flow velocities in stock or to make them at short notice from case to case.
- Dash-dot lines indicate a radial wheel 12 that can take the place of the axial wheel 9 and, when equipped with radially extending blades, independently of the direction of rotation at the same speed in the direction of the arrow.
- the guide jacket 7 can be made very thin because the pressure differences in the internal circuit are small.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Textile Engineering (AREA)
- Paper (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8414320U | 1984-05-10 | ||
DE8414320U DE8414320U1 (de) | 1984-05-10 | 1984-05-10 | Kühl- oder Heizwalze |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0162381A1 EP0162381A1 (fr) | 1985-11-27 |
EP0162381B1 true EP0162381B1 (fr) | 1988-03-23 |
Family
ID=6766737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85105742A Expired EP0162381B1 (fr) | 1984-05-10 | 1985-05-10 | Tambour pour chauffer ou refroidir |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0162381B1 (fr) |
DE (2) | DE8414320U1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19822531B4 (de) * | 1998-05-19 | 2006-11-30 | Voith Patent Gmbh | Kalanderwalze |
FI108252B (fi) * | 2000-10-05 | 2001-12-14 | Metso Paper Inc | Menetelmä ja laite paikallisten lämpökuormien tasaamiseksi |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE225448C (fr) * | ||||
DE613662C (de) * | 1930-04-27 | 1935-05-23 | Teerverwertung M B H Ges | Vorrichtung zum Kuehlen von fluessigen Stoffen aus zwei gleichachsig ineinandergelagerten, relativ zueinander bewegbaren Trommeln |
US3237685A (en) * | 1961-11-29 | 1966-03-01 | Dow Chemical Co | Fluid heated roll |
DE1604248A1 (de) * | 1965-05-20 | 1970-08-27 | Winkler Fallert & Co Maschf | Kuehl- und Heizwalze |
DE2646111C3 (de) * | 1976-10-13 | 1980-07-31 | Kraftanlagen Ag, 6900 Heidelberg | Einrichtung für das Verteilen eines flüssigen Wärmeübertragungsmittels im Inneren von Heiz- und Kühlwalzen |
DE2650858C2 (de) * | 1976-11-06 | 1983-05-26 | Erich 2000 Hamburg Pagendarm | Kühl- und Heizwalze mit einem drehbar gelagerten Walzenmantel |
DE3014891A1 (de) * | 1980-04-17 | 1981-10-22 | Schwäbische Hüttenwerke GmbH, 7080 Aalen | Vorrichtung mit einer mittels eines waermetraegers temperaturgeregelten hohlwalze |
-
1984
- 1984-05-10 DE DE8414320U patent/DE8414320U1/de not_active Expired
-
1985
- 1985-05-10 EP EP85105742A patent/EP0162381B1/fr not_active Expired
- 1985-05-10 DE DE8585105742T patent/DE3561975D1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE8414320U1 (de) | 1985-09-19 |
DE3561975D1 (en) | 1988-04-28 |
EP0162381A1 (fr) | 1985-11-27 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): CH DE FR GB IT LI NL SE |
|
17P | Request for examination filed |
Effective date: 19860526 |
|
17Q | First examination report despatched |
Effective date: 19860923 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: E.C.H. WILL (GMBH & CO.) |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: PAGENDARM, ERICH |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
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AK | Designated contracting states |
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NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
EN | Fr: translation not filed | ||
GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] | ||
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STAA | Information on the status of an ep patent application or granted ep patent |
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