EP0829693B1 - Rouleau onduleur chauffé par la vapeur - Google Patents
Rouleau onduleur chauffé par la vapeur Download PDFInfo
- Publication number
- EP0829693B1 EP0829693B1 EP19970402100 EP97402100A EP0829693B1 EP 0829693 B1 EP0829693 B1 EP 0829693B1 EP 19970402100 EP19970402100 EP 19970402100 EP 97402100 A EP97402100 A EP 97402100A EP 0829693 B1 EP0829693 B1 EP 0829693B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steam
- condensate
- conduits
- outlet
- ring
- 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 - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/20—Corrugating; Corrugating combined with laminating to other layers
- B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
- B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
- B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
- B31F1/2845—Details, e.g. provisions for drying, moistening, pressing
- B31F1/285—Heating or drying equipment
-
- 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
- rollers which must be heated to a certain temperature to ensure the effect that one wants to obtain with them.
- This heating of the aforementioned rollers takes place in the technique conventional by introducing steam into an interior chamber thereof, so that heating takes place through the condensation of saturated steam, which must be routed constantly during operation, so that the heat supply is continuous.
- the interior chamber of the rollers is cylindrical in shape, so the ring that the condensate defines when turning with the roller has a variable thickness, which increases from the exit point to the most distant points, since this ring forms a slope of displacement towards the exit, so that the heat transmission varies along the roll, since the above-mentioned condensate ring exerts a insulating function vis-à-vis the heat transmission of steam to the wall of the roller.
- the improvements recommended apply to rollers with condensate outlet solution by existing conduits in one end of the inner chamber of the roller, with this peculiarity that, according to the above-mentioned improvements, a annular housing from which the aforementioned conduits leave while going towards the exit corresponding evacuation.
- a ring made up of different independent segments or sectors, which are arranged with a certain radial clearance in the abovementioned annular housing.
- the invention relates to an inverter roller heated by steam, of the type comprising an interior chamber into which vapor of heating by a tube incorporated axially through one of the end parts of the roller which serve as an axis of rotation, the condensate discharge outlet being effected by a chamber disposed between said tube and said end portion and connected to the inner chamber by radial ducts, characterized in that the ducts of condensate outlet extend to an annular housing which is in communication with the interior chamber and in which a ring is incorporated made up of different independent sectors; these independent sectors which constitute the ring being arranged inside the annular housing with possibility to move radially between extreme positions, one of which in which they rest on the bottom of the housing by closing conduits and another in which they occupy the position furthest from the bottom, in leaving the ducts open, so that when the roller is stopped, the sectors which constitute the ring occupy a stable position in the position the lower, under the effect of their own weight, the sector or sectors constituting the ring which are
- the interior chamber rollers is made with a certain taper, thanks to which it is established a drop in level which helps the condensate to reach the outlet area where it is located further provided a recess which acts as a drainage well for concentrate the condensate and facilitate its removal, so that when the roller is stopped, the condensate flows rapidly towards said drainage well; while that when the roller turns the thickness of the condensate ring which shape became uniform over the entire length of the chamber, with the effect that the transmission of heat from the vapor to the wall of the roller occurs identically in all respects.
- an embodiment which includes an absorption system capable of recovering the vapor which escapes with the condensates, and a scanning system by means of which a impulse of the condensate towards the evacuation zone, thus facilitating elimination of it.
- the vapor recovery absorption system is implemented by means of a nozzle incorporated into the steam inlet into the chamber of the roller, however that near the outlet of said nozzle, there are openings communicating with conduits which extend to the rear of the condensate drain outlet.
- the condensate pulse system to the drain outlet is made on its side by means of the arrangement of a series of outlet nozzles steam in the heating chamber, distributed over the lower part of a tube located axially in the chamber, and directed in inclined positions toward the end where the condensate drain outlet is located.
- Figure 1 shows a longitudinal section of the assembly of a roller according to the invention.
- Figure 2 shows an enlarged detail corresponding to the positioning of the upper part of the compound ring, incorporated on the condensate outlet holes when the roller is stopped.
- Figure 3 is a detail like the previous one which corresponds to positions of the same upper part of the compound ring, when the roller rotates at operating speed.
- Figure 4 is a detail which corresponds to the lower part of the ring compound, when the roller is stopped.
- Figure 5 is a detail that corresponds to the situation of the game aforementioned low of the compound ring, when the roller turns in operation.
- Figure 6 is a side view of one of the segments or sectors partial of the above-mentioned compound ring.
- Figure 7 is a partial sectional view of the end part of a roller where the steam inlet is located according to another possible embodiment.
- Figures 8, 9 and 10 show different possibilities for positioning in which the compound ring can be in relation at the condensate outlet ports, when the roller stops.
- Figure 11 shows the longitudinal section of an equipped roller steam recovery and condensate pulse systems.
- Figure 12 is an enlarged partial view corresponding to the section of the extreme part of the roller by which steam is introduced, in accordance with the previous achievement.
- FIG. 13 is a view of the cross section of the roller, in accordance with the indication indicated in the previous figure.
- the object of the invention relates to improvements made the inverter rolls that are used, for example, for the production of cardboard corrugated, in which the heating required for the function to be performed is carried out by introducing steam into a chamber 1 defined axially at the interior of the body 2 of the aforementioned rollers, however it is necessary to extract the condensate that forms in this heating action to avoid an obstacle preventing the transmission of heat to the body 2 of the roller during rotary operation and deformation thereof during shutdowns due to the difference in heat transmission produced by the vapor and condensate in the areas with which they are in contact.
- annular recess in this communication between the chamber 5 of condensate outlet and the heating chamber 1, an annular recess is formed, which we will call housing 7, up to which the conduits 6, said housing 7 being in communication with room 1 by means of other conduits 8.
- These conduits 8 could be replaced by an annular groove continuous defined between this hollow 7 and the extreme periphery of the chamber 1.
- a ring 9 formed at through various segments or sectors such as those shown in Figure 6.
- said ring 9 is formed at by means of three independent sectors, as can be seen in Figures 8, 9 and 10 but without this excluding the possibility of realization with any other number of sectors.
- the aforementioned ring 9 is moreover arranged with a certain radial clearance in the housing 7, so that, when the roller is stopped, the sectors components of the ring 9 which are in the upper part fall under the effect of their own weight and by the action of gravity on the bottom of said housing 7, thereby closing the conduits 6 on which they are coincident, as shown in Figure 2; while the sector or sectors which are found in the lower part remain in the most radial position outside, without blocking the corresponding conduits 6, as shown in the figure 4.
- Chamber 1 inside the rollers is on its side formed with a certain taper widening towards the condensate outlet zone where, in addition, there is a recess 12 serving as a drainage well to concentrate the condensate in the desired way to facilitate drainage.
- This conicity of the chamber 1 also has the effect that, during the rotary operation, the thickness of the condensation ring that forms thanks to the centrifugal force and under the effect of the rotation, is of a thickness uniform along the entire chamber 1 so that heat transmission heating steam to the body 2 of the roller occurs identically in all points, thus avoiding differences in temperature over the length of the roller and the consequences of distortion and malfunction for this roll.
- the condensate outlet conduits 6 can be defined in the shaft part 4 itself in which is included the tube 3 for the inlet of steam heating, as shown in Figure 1; however within the limits of very principle of the invention, provision is also made for a possible embodiment based on the formation of the aforesaid conduits 6 through an attached disc 13 which is mounted on a tubular rod 14, also attached as shown in FIG. 7, the annular housing 7 intended for mounting the compound ring 9 being in this case defined in the periphery of said disc 13.
- a nozzle 15 is included in the inlet of the steam from heating in room 1, while in the fixed interior part 16 of the roller rotation bearing 2 in which an opening is formed lower 17 for the condensate outlet, are further defined in the upper part, longitudinal conduits 18 which open out through openings 19 near the outlet of the nozzle 15.
- a deflector 20 which closes the pipe 5 evacuation of the condensate, which is formed around the conduit 3 of introduction steam leaving in this pipe 5 only a lower passage by which the liquid condensate can leave for its evacuation while the vapor, which tends to rise, meets the deflector 20 without being able to continue its path to the outside, since it is instead driven inward to through the conduits 18 under the effect of the absorption of the "Venturi".
- the entry of the steam supply into chamber 1 is further extended from the nozzle 15 by means of a tube 21 which extends axially to the other end where it attaches to a support 22, however that are incorporated, distributed over the length of said tube 21, a series of nozzles 23 directed downwards and sloping backwards.
- the entry of steam into the chamber 1 therefore occurs in projection through the aforementioned nozzles 23, in giving rise to a blowing sweep which favors the displacement of condensates towards the drainage 12 for the evacuation, obtaining at the same time as the condensate residue which, in the lower part, tends to remain on the wall of chamber 1 during stops, under the effect of the tension between liquid and solid, are also driven towards the exit, which avoids the effects detrimental to these residues.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Description
- Elimination pratique de l'« effet banane » pendant les arrêts.
- Epaisseur réduite et uniforme de l'anneau de condensat qui se forme à l'intérieur des rouleaux sous l'effet de la rotation.
- Maintien de la stabilité dimensionnelle des rouleaux, pratiquement sans altérations.
- Plus grande capacité calorifique des rouleaux, grâce à la plus faible épaisseur de l'anneau de condensat qui se forme lorsque les rouleaux tournent.
- Répartition uniforme de la température sur toute la dimension des rouleaux.
- Besoins d'entretien minimes, grâce à la simplicité de l'ensemble constitutif.
Claims (7)
- Rouleau onduleur chauffé à la vapeur, du type comprenant une chambre intérieure (1) dans laquelle on introduit la vapeur de chauffage par un tube (3) incorporé axialement à travers une des parties extrêmes du rouleau (4) qui servent d'axe de rotation, la sortie d'évacuation des condensats s'effectuant par une chambre (5) disposée entre ledit tube (3) et ladite partie extrême (4) et raccordée à la chambre intérieure (1) par des conduits radiaux (6), caractérisé en ce que les conduits (6) de sortie des condensats s'étendent jusqu'à un logement annulaire (7) qui est en communication avec la chambre intérieure (1) et dans lequel est incorporé un anneau (9) formé de différents secteurs indépendants ; ces secteurs indépendants qui constituent l'anneau (9) étant disposés à l'intérieur du logement annulaire (7) avec possibilité de se déplacer radialement entre des positions extrêmes, dont une dans laquelle ils reposent sur le fond du logement (7) en fermant des conduits (6) et une autre dans laquelle ils occupent la position la plus éloignée par rapport au fond, en laissant les conduits (6) ouverts, de sorte que, lorsque le rouleau (2) est arrêté, les secteurs qui constituent l'anneau (9) occupent une position stable dans la position la plus basse, sous l'effet de leur propre poids, le ou les secteurs constitutifs de l'anneau (9) qui se trouvent dans la partie supérieure tombant par l'action de la gravité sur le fond du logement (7) en fermant les conduits (6) sur lesquels ils sont en coïncidence et le ou les secteurs constitutifs de l'anneau (9) qui se trouvent dans la partie inférieure restant par l'action de la gravité dans la position radiale la plus extérieure, sans obturer complètement les conduits (6) correspondants, tandis que, lorsque le rouleau (2) tourne, les secteurs constitutifs de l'anneau (9) viennent, sous l'effet de l'action centrifuge, occuper la position extrême la plus éloignée du fond du logement (7), de sorte que tous les conduits de sortie (6) restent ouverts en permettant ainsi la sortie des condensats.
- Rouleau onduleur chauffé à la vapeur selon la revendication 1, caractérisé en ce que chacun des secteurs qui compose l'anneau (9) est assemblé au fond du logement annulaire (7) par des moyens qui empêchent la rotation de ces secteurs autour de l'axe longitudinal théorique du rouleau (2), mais qui permettent le déplacement de ces secteurs dans la direction radiale.
- Rouleau onduleur chauffé à la vapeur selon la revendication 1, caractérisé en ce que la chambre intérieure (1) du rouleau (2) est formée avec une certaine conicité en s'élargissant vers l'extrémité de sortie des condensats, en établissant de cette façon une pente qui facilite le déplacement des condensats vers la sortie, tandis qu'à l'extrémité où est définie la sortie pour les condensats, ladite chambre (1) est munie d'un élargissement qui détermine un puits de drainage (12) pour la collecte des condensats.
- Rouleau onduleur chauffé à la vapeur selon la revendication 1, caractérisé en ce que le logement annulaire (7) prévu pour l'anneau (9) et les conduits (6) prévus pour l'évacuation des condensats sont définis directement dans la partie extrême qui sert d'axe de rotation (4).
- Rouleau onduleur chauffé à la vapeur selon la revendication 1, caractérisé en ce que le logement annulaire (7) prévu pour l'anneau (9) et les conduits (6) prévus pour l'évacuation des condensats sont définis dans un disque rapporté (13) monté sur une tige tubulaire (14) rapportée à travers la partie extrême (4) qui sert d'axe de rotation.
- Rouleau onduleur chauffé à la vapeur selon la revendication 1, caractérisé en ce qu'une tuyère (15) est montée dans l'entrée de la vapeur dans la chambre (1) de l'intérieur du rouleau (2), tuyère à proximité du débouché de laquelle se trouvent des ouvertures (19) mises en communication avec des conduits (18) qui se prolongent jusqu'en arrière de la sortie (17) d'évacuation des condensats hors des conduits radiaux (6), pour former un «Venturi » qui, sous l'action propre de la vapeur acheminée, provoque à travers les ouvertures (19) et les conduits (18), une absorption récupératrice de la vapeur qui s'échappe de la chambre (1) conjointement avec les condensats à travers les conduits (6) et la sortie (17) pour réintroduire cette vapeur dans la chambre (1); à une certaine distance de la sortie (17) précitée, se trouve un déflecteur (20), lequel obture la conduite (5) d'évacuation du condensat, en laissant seulement une ouverture inférieure pour le passage d'évacuation du condensat liquide, tandis que la vapeur ascendante est retenue en vue de son absorption de récupération.
- Rouleau onduleur chauffé à la vapeur selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'entrée de la vapeur dans la chambre (1) de l'intérieur du rouleau (2) s'effectue à travers un tube (21) incorporé axialement le long de la chambre (1) précitée, dans lequel sont incorporées, d'une façon répartie, une série de tuyères (23) dirigées vers le bas et en pente vers l'arrière, lesdites tuyères (23) formant des sorties de projection de la vapeur qui donnent lieu à un balayage soufflant d'impulsion des condensats vers la sortie.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9601937 | 1996-09-12 | ||
ES9601937A ES2131450B1 (es) | 1996-09-12 | 1996-09-12 | Perfeccionamientos en rodillos corrugadores calentados mediante vapor. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0829693A1 EP0829693A1 (fr) | 1998-03-18 |
EP0829693B1 true EP0829693B1 (fr) | 2001-11-28 |
Family
ID=8296018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19970402100 Expired - Lifetime EP0829693B1 (fr) | 1996-09-12 | 1997-09-10 | Rouleau onduleur chauffé par la vapeur |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0829693B1 (fr) |
DE (1) | DE69708563T2 (fr) |
ES (1) | ES2131450B1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10112736B4 (de) | 2001-03-16 | 2004-07-08 | Adolf Illig Maschinenbau Gmbh & Co.Kg | Heizwalze für eine Heizeinrichtung zum Erwärmen einer Folienbahn aus thermoplastischem Kunststoff |
DE202006011115U1 (de) * | 2006-07-17 | 2007-12-06 | Hödl, Alois | Kondensatrückführung in geschlossenen Dampfanlagen, insbesondere zur Beheizung von Riffelwalzen für die Wellpappenherstellung |
CN106945347B (zh) * | 2017-04-19 | 2023-08-18 | 云南全心包装印刷有限公司 | 一种稳定节能的蒸汽压辊及应用其的蒸汽节能循环*** |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1575249A (en) * | 1923-12-15 | 1926-03-02 | Beloit Iron Works | Apparatus for removing condensate from revolving driers |
ES2053377B1 (es) * | 1992-03-02 | 1996-01-16 | Torres Martinez M | Sistema para la fabricacion de carton ondulado. |
ES2070726B1 (es) * | 1993-03-24 | 1998-11-16 | Torres Martinez M | Rodillo ondulador de papel para carton ondulado. |
DE4341730A1 (de) * | 1993-12-08 | 1995-06-14 | Bhs Corr Masch & Anlagenbau | Riffelwalze für die Herstellung von Wellpappe |
DE4343172C1 (de) * | 1993-12-17 | 1995-01-12 | Kleinewefers Gmbh | Beheizbare Walze |
-
1996
- 1996-09-12 ES ES9601937A patent/ES2131450B1/es not_active Expired - Fee Related
-
1997
- 1997-09-10 EP EP19970402100 patent/EP0829693B1/fr not_active Expired - Lifetime
- 1997-09-10 DE DE1997608563 patent/DE69708563T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69708563T2 (de) | 2002-08-29 |
DE69708563D1 (de) | 2002-01-10 |
ES2131450B1 (es) | 2000-03-01 |
EP0829693A1 (fr) | 1998-03-18 |
ES2131450A1 (es) | 1999-07-16 |
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