• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:SE1000912A1
    申请号:SE1000912
    申请日:2010-09-08
    公开日:2012-03-09
    发明作者:Johnny Aanerud
    申请人:Metso Paper Karlstad Ab；
    IPC主号:
    专利说明:

    101520253035in the threaded hole to abut the evacuation pipeand locking it in the desired position of the evacuation pipe, whichposition is locked by means of a locking nut supported by itthreaded rod. The known pipe positioner, which thushas a T-shape, is manufactured for use in a track ofcertain depth. Another groove depth thus requires oneT-shaped tube positioner, the support body of which is shorter orlonger depending on said groove depth, which is oneproblems especially with regard to the storage of aseveral sets of tube positioners, eachset has its own, definite dimension.The object of the present invention is to achievean improved positioning device for evacuation pipes,which eliminates the above problems and enablesit can be used for all drying cylinders regardless ofthe depth of the grooves on the inside of the mantle. Thus limitedwarehousing to only one set of itcurrent pipe positioner.
    The positioning device according to the inventioncharacterized in that said first hole is arranged inthe support body and that the portion of the locking device which is locatedin the support body, is provided with a through-going, third holearranged to cooperate with and focus on the support bodyfirst hole so that the evacuation tube extends throughboth the support body and the locking device, the locking device beingarranged to enclose the evacuation pipe and be led to lockedposition in conjunction with the support body, in which read positionthe evacuation tube, support body and locking device are fixedto eachother.
    The invention will be described in more detail with referenceto the drawings.
    Fig. 1 is an end view of parts of a drying cylinder, thegable removed, showing two of a plurality101520253035positioning devices according to the invention of acondensate evacuation system.
    Fig. 2 shows the positioning devices in section.
    Fig. 3 shows one of the positioning devicesincluding an evacuation tube and first and secondpipe positioner before mounting at a manifold atthe evacuation system.
    Fig. 4 shows the second pipe positioner in cross section.
    Fig. 5 shows the first pipe positioner in cross section.
    Figs. 6 and 7 show the first tube positioner with itsdifferent parts separated.
    Fig. 8 is a sectional view of the second pipe positionerbefore mounting according to Fig. 3.
    Fig. 9 is a sectional view of the casing of the drying cylinderalong the line 1X-1X in Fig. 3 and showing the evacuation pipeand the first tube positioner.
    Figures 1 and 2 show an inner portion of a steam heaterdrying cylinder 1, which is mounted in a drying section of apaper machine for making a paper web.
    The drying cylinder has a jacket 2, which has an outside, onwhich the paper web is dried, and an inside, which is providedwith a plurality, evenly distributed in the axial directionendless, circumferential tracks 3, the center of which coincideswith the center shaft of the drying cylinder 1. The grooves 3 have suitablya round, concave bottom surface 4. The grooves 3 delimit betweenridges 5, the top surfaces 30 of the ridges 5 and the 3 of the rafters 3bottom surfaces 4 and side walls together form an interiormantle surface for heat transfer. Such internallygrooved drying cylinders 1 were used i.a. in the drying section101520253035of a tissue paper machine for makingtissue paper and thereby has a relatively large diameter,which can vary from one machine to another. Furthermore,the drying cylinder 1 a hollow center hub and two opposite onesshaft journals, which are connected to the center hub toextend through the opposite of the drying cylinder 1side gables. The drying cylinder 1 is rotatably mounted by means ofthe shaft journals, which thus define the drying cylinder 1axis of rotation.
    The energy for drying the paper web is supplied in the formof steam to the inner space of the drying cylinder 1. The steamcondenses on the inner mantle surface, and the heat is conducted throughthe jacket 2 to its outside, with which the paper web is inplug. During operation, condensate accumulates in the form of a filmon the bottom surface of each groove 3, which condensate film tofor the most part determines the transition resistance from steamto mantle. An efficient heat flow presupposes thatgrooves 3 are kept as free as possible from condensate. Forto drain each groove 3 of condensate as efficiently aspossible, a special evacuation system was used forcondensate, which comprises a plurality of elongateevacuation tube 6, commonly referred to as suction tube and which isarranged in a plurality of evenly distributed groups aroundmantelns 2 inside. Furthermore, includes the evacuation systeman outlet means, which in turn comprises oneplurality of axially arranged manifolds 7, a riserfrom each manifold 7, a common center connectionfor the risers through said center hub and through one ofthe shaft journals to the outside of the drying cylinder 1 for furthertransport. The number of manifolds 7 thus correspondsthe number of said groups. The manifolds 7 are arrangedeccentric and axial in relation tothe center axis of the drying cylinder 1.
    Each evacuation tube 6 has an end portion 9 with an open oneend 10, with which the space 11 of the groove 3 is open101520253035communication, and an end portion 12 with an open end 13,which opens into the manifold 7, see Fig. 2. During operationthe opening 10 of the end portion 9 must be located on apredetermined distance from the bottom surface 4 of the groove 3 such asis shown in Figures 1 and 9.
    Each evacuation pipe 6 is provided with a device forpositioning of the evacuation tube 6 relative tothe inside of the mantle 2 and more precisely in relation tothe bottom surface 4 of the groove 3 to maintain the abovepredetermined distances.
    The positioning device comprises a firstpipe positioner or pipe positioner 40, which isarranged within the said end portion 9 of the evacuation pipe6, which is located closest to the mantle 2. The firstthe tube positioner 40 comprises a support body 41, which isdesigned to rest on the top surfaces 30 of two onsuccessive ridges 5 to extend in onedirection across the intermediate track 3.
    The support body 41 is delimited by two facing away from each otherend faces 42, 43, two facing side faces 44, 45,an upper surface 46 and a lower surface 47, which side surfaces 44, 45and upper and lower surfaces 46, 47 extend between saidend surfaces 42, 43.surface 47 curved as shown, e.g. circular-cylindrical. OnePreferably at least the lower onefirst imaginary plane extends through the end faces 42, 43 andA second imaginary planextends through the two end faces 42, 43 and the twoside surfaces 44, 45 and intersects said first plane belowthe upper and lower surfaces 46, 47.perpendicular. The plan can define the center plan ofthe support body 41, but one of the planes or both may belocated slightly adjacent to said center plan.
    A first through hole 48 extends betweenthe side surfaces 44, 45 and have a diameter which is slightlylarger than the diameter of the evacuation tube 6 to receive101520253035the evacuation tube 6 therein during sliding fit so thatthe support body 41 can be displaced along the evacuation pipe 6to the desired position in relation to the evacuation tube 6end 10 of the end portion 9 or alternativelysaid center of rotation of the evacuation tube 6. The first hole48 has a center line which coincides with said secondplan. Furthermore, a second, through hole 49 is providedextending between the upper surface 46 and the lowercurved surface 47, which second hole 49 has a larger onediameter than the first hole 48. The second hole 49 hasa center line, which coincides with said first plane.
    The center lines of the two holes 48, 49 intersectright angles and their common point of intersectioncoincides with the intersection of the two mentioned planes.
    The first tube positioner 40 further includes amultifunctional elongate pin 50, which includes a central onelot 51, which is designed to be received in the saidsecond hole 49 with sliding fit, the portion 51thus has a diameter which is slightly smaller than the otherthe diameter of the hole 49. The said party is provided with onediametrically, through hole 52, which has the same diameteras the first, smaller hole 48 of the support body 41 forthereby aligning with the latter hole 48 so thatthe evacuation tube 6 can be inserted into the smaller of the support body 41hole 48 from one end and further through the hole 52 of the pin portionand then further through the smaller hole 48 of the support body 41and out through its other end. Thereby a unit is formed,which is slidable along the evacuation tube 6 tomoved and set to the desired position, then apredetermined distance between the bottom 4 of the track 3 andthe open end 10 of the evacuation tube 6 is reached. Furtherthe pin 50 comprises a lower guide and support portion 53,extending from the lower surface 47 to be receivedin the groove 3 for the purpose of guiding and supporting the tube positioner40 in the groove so that the evacuation tube 6 is kept in the right position,focused mode.l01520253035The length of the lower guide and support portion 53 is less thantrack 3 depth. The first tube positioner 40further comprises a locking device 54 for locking the threethe construction elements 6, 41, 50 to each other. Onesuch locking device 54 can be designed and arranged on a pluralitydifferent ways. In the embodiment shown, it includesa nut 55 and an upper, from the upper surface of the support body 4146 projecting threaded portion 56 of the pin 50, on whichthreaded portion nut 55 is screwed to finallypressed against the upper surface 46 of the support body 41 and thus tightenedthat the support body 41, the evacuation tube 6 and the pin 50locked together. If a position adjustment is requiredperformed, the nut 55 needs to be loosened a few or a few turnsuntil the procedure is released so that the firstthe tube positioner 40 can be moved alongthe evacuation pipe in the desired direction. The firstthe tube positioner 40 according to the invention makes it possible toit can be used for all drying cylinders 1 independentlythe depth of the grooves 3 on the inside of the mantle 2. To decreasethe weight of the support body 41, it can be provided with recesses onboth sides of the hole 49 and extending down in the directionfrom the upper surface 46 a suitable piece, e.g. halfthe distance down to the lower surface.
    The device further comprises a second pipe positioneror tube positioner 14, which is arranged withinthe end portion 12. The second tube positioner 14 includesa mounting device 15, see Figs. 3 and 4, for mountingthe evacuation tube 6 at the manifold 7 and a lockableconnection 16, which connects the evacuation pipe 6 tothe mounting device 15. In the shown, preferredIn the embodiment, said connection 16 is a lockable onejoint connection, which in the unlocked state articulate connectionthe evacuation pipe 6 with the mounting device 15.
    The hinge connection 16 forms a center of rotation for rotation ofthe evacuation tube 6 in at least one vertical plane, i.e.101520253035a plane that coincides with the track's 3 center plane, whichcut the center axis of the drying cylinder 1 at right angles.
    The degree of said rotation is performed depending onthe diameter of the drying cylinder 1 and the depth of the groove 3 so that aopen end of the evacuation tube 6 is located onpredetermined distance from the bottom surface 4 of the track 3.
    The hinge connection 16 then comprises an inner hinge body 17,see Fig. 3, which is permanently attached, e.g. throughwelding, on the evacuation tube 6 at a predetermined distancefrom said open end 10 of said evacuation tube 6said end portion 9. The inner hinge body 17 is formedwith a curved, external joint surface 18, which comprises surface parts19, 20, which at least face forwards and backwards seen inthe longitudinal direction of the evacuation tube 6 and in the direction ofthe manifold 7. Furthermore, the hinge connection 16 comprises aouter hinge body 21, which consists of a first part 22 and asecond part 23, see Figs. 3 and 4, which are separableconnected to each other and which together enclose itinner hinge body 17. Each hinge body part 22, 23 is providedwith an internal joint surface 24 resp. 25, see Fig. 4, which hasthe same shape and radius as the inner joint body 17hinge surface 18. The two hinge body parts 22, 23 are arrangedto be merged into one unit, i.e. to said exteriorhinge body 21, their curved interior facing each otherguide surfaces 24, 25 are arranged to cooperate with the interiorthe curved joint surface 18 of the hinge body 17 so that in a first,initial position form a sliding interaction between the counterfacing the joint surfaces 18, 24, 25, in which initialposition the evacuation tube 6 has the possibility to turn aroundsaid center of rotation, which is thus defined by the joint surfaces18, 24, 25, as described above. At continuedforced joining of the two articular body parts 22,23 in the direction of each other, the friction between them increasesfacing the joint surfaces 18, 24, 25 until completely lockedposition of the hinge connection 16 is achieved, wherebythe evacuation tube 6 is fixed against rotation about saidcenter of rotation. Mounting device 15 and the nearestlO1520253035the hinge body part 22 located in the hinge body 17 is suitablyproduced in one piece as shown in Figs. 3 and 4.
    The mounting member 15 and the outer hinge body 21 haveaxially through center hole 31, 32, see Fig. 4, which hasa larger diameter than the evacuation tube 6 tothereby enabling said rotation ofthe evacuation pipe 6.
    In the illustrated, preferred embodiment of the lockablethe hinge connection 16 is constituted by a ball joint, wherein theysaid curved joint surfaces 18, 24, 25 are spherical, wherebythe evacuation device becomes rotatable in all directions.
    Mounting device 15 for attaching the evacuation pipe 6at the manifold 7 comprises an externally threaded sleevefor screwing into an internally threaded hole 26 in a wallof the manifold 7, which threaded hole is connectedwith the interior of the manifold 7. The center axis of the hole 26 isdirected towards the area of the track 3, where the evacuation pipe 6shall suck in condensate. It is realized that everyonemounting holes 26 of the manifold 7 have theirscenter axes oriented in the same way towards their counterpartsareas, which will then lie on and be cut offa common axial line. A screw-in stop 27 isdesigned at the transition to the ball joint 16. The firstthe hinge body part 22 is cylindrical and has an exteriorthread. In the embodiment shown, this is the firsthinge body part 22 and said sleeve 15 formed in onepiece, said screw stop 27 being formed by a radial,circumferential surface in the transition between them in that itthe first hinge body part 22 has a larger diameter than the sleeve15. The second articulated part 23 has the shape of a nut,which has an internal thread and a diameter at itthreaded sections adapted to the firstthe outer diameter of the hinge body part 22 and its thread so thatthe nut 23 can be screwed onto the first hinge body part 22to form a screw connection while enclosingthe inner spherical joint body 17. The one from the threaded portion10152025303510the facing side of the nut 23 has a wall 28 which is providedwith a center hole 29, through which the evacuation tube 6extends and also allows a small portion of itinner spherical hinge body 17 can project therefrom tothereby enabling the evacuation tube 6 to be turned ondesired manner, when the ball joint is in the released condition. Withreference numeral 36 denotes a locking plate whichis supported by the sleeve 15, and which is bendable down over the nut23 so that it is locked against twisting as shown inFig. 1-4.
    A device with a second tube positioner has so farused, where the end portion of the evacuation tube, facingthe outlet means and more particularly towards a manifold,is provided with an external thread for screwing inthe evacuation tube in the fitting, which has acorresponding internal thread. Furthermore, it supports the threadedthe part of the evacuation pipe a locknut, which is arrangedto be brought into locking contact with the mounting device,then the position of the evacuation tube in relation to that of the trackbottom surface has been determined. Evacuation tube position inin relation to the bottom surface of the track is adjusted and adjustedthus by rotating the evacuation tube around itsshaft so that it is screwed in or out of the mounting device.
    A disadvantage of the known device is thatthe length of the evacuation tube is adapted to a specificdrying cylinder and its diameter. A set ofevacuation pipes must therefore be provided for eachsize of drying cylinders with respect to their diameters.
    Another inconvenience is the mounting of the evacuation pipeis inconvenient and time consuming in that it has to be performeddirectly inside the drying cylinder and also thatthe setting of the evacuation pipes must be done one by onewithout being able to use the setting of a previous one,already fitted evacuation pipe.101520253035llThe second tube positioner 14, which is included in a preferred oneembodiment of the device according to the invention,allows one and the same length of the evacuation pipe 6can be used for drying cylinders 1 with different diameters inturning the second tube positioner 14 intoin relation to the mounting shaft 33, see Fig. 3, whichis defined by the mounting device 15, which is fixed inthe collecting pipe 7 so that the center line of the evacuation pipe 634, see Fig. 3, forms an obtuse angle withmounting shaft 33, whereby thus the center line 34 canextend downwards, as shown in Fig. 3, or upwards inin relation to the fixed mounting shaft 33. In boththe cases the center line 34 forms an acute angle d, seeFig. 3, with its key 35 at the point of intersection with that of the track3 bottom surface 4 (or with the outside of the jacket 2). The assemblyof the evacuation tubes 6 can be performed at a faster,easier and more convenient way in that it is onlynecessary to mount a first evacuation pipe 6 atthe manifold 7 and thereby set a desired angle, whichfixed with nut 16 of the ball joint 16, after whichthe mounting device 15 is again detached from the manifold 7 forto be used as a template for setting the correspondingangle of the other evacuation tubes 6 of the manifold7, which work can thus take place outside the drying cylinder 1,after which the thus completed evacuation pipes 6 withassociated devices can be mounted to the manifold 7inside the drying cylinder 1. About an adjustment of an anglemust be done, this is a simple action by looseningball joint 16 nut 23 to enable rotation ofthe evacuation tube 6 up or down depending on the degree ofnecessary adjustment. Right angle in the above operationshas been reached, then the open end 10 of the evacuation tube 6, whichfacing the mantle 2, is located on a predetermineddistance from the bottom surface of the track 3 4. This distance isusually 3-5 mm. This distance is permanent by means of itthe first tube positioner 40, which is already presetevacuation tube 6, but which can be readjusted if so101520253012necessary. The first tube positioner 40, in addition, isnecessary to absorb the centrifugal forces actingon the evacuation pipe 6 during operation and as otherwisewould push in the end portion 9 of the evacuation tube 6 indirection towards the bottom surface of the track 3 4.
    In the described embodiment with a ball joint 16thus, the center of rotation of the evacuation tube 6 is defined bythe center of the spherical joint surface of the ball joint 16 In onealternative embodiment of the hinge connection 16 is the hinge surfacecylindrical, defining a horizontal center axis,thus forming the center of rotation of the evacuation tube 6.
    The first tube positioner can of course be used incombination with any type of the otherthe tube positioner, e.g. the known construction asdescribed above, where the end portion of the evacuation tube, whichfacing the outlet means and more specifically towards onemanifold, is provided with an external thread forscrewing the evacuation pipe into the mounting device, whichhas a corresponding internal thread, or the new one, abovedetailed construction with rotatable storage ofthe evacuation pipe, which is preferred due to its manyadvantages over the said knownthe construction.
    权利要求:
    Claims (8)
    [1]
    Device for positioning an evacuation pipe (6) of an evacuation system, which is arranged in a steam-heated drying cylinder (1) of a paper machine, which drying cylinder (1) has a jacket (2) which has circumferential grooves (3) on its inside ) for collecting condensate, which is formed as a result of heat transfer through the jacket (2) to its outside, which evacuation system comprises an outlet means which opens onto the outside of the drying cylinder (1) and a plurality of evacuation pipes (6) arranged in a a plurality of axial groups and connected to the outlet means, and which evacuation system is arranged to evacuate the condensate from said groove (3) of the drying cylinder (1) to its outside via said plurality of evacuation tubes (6) and outlet means, which device comprises a first pipe positioner (40), which is arranged within an end portion (9) of the evacuation tube (6), which is located closest to the jacket (2), which tube positioner (40) comprises a support body (41), which is designed to rest on the upper surfaces (30) of two adjacent ridges (5), and a locking device (54) for fixing the evacuation tube (6) to the tube positioner (40), the tube positioner being provided with a first, through hole (48) for receiving the evacuation tube (6) and a second hole (49) for receiving the locking device (54), which second hole (49) opens into the first hole (48), characterized in that said first hole (48) is arranged in the support body (41). ), and - that the portion (51) of the locking device (54), which is located in the support body (41), is provided with a continuous, third hole (52) arranged to cooperate with and align with the first hole of the support body (41) ( 48) so that the evacuation tube (6) extends through both the support body (41) and the locking device (54), wherein 15 15 20 25 30 35
    [2]
    The locking device (54) is arranged to enclose the evacuation tube (6) and is moved to the locked position in cooperation with the support body (41), in which locked position the evacuation tube (6), the support body (41) and the locking device (54) are fixed to each other. . Device according to claim 1, characterized in that the second hole (49) for the locking device (54) crosses the first hole (48) and is continuous and that the reading device (54) comprises a lower, free guide and support portion (53), which is arranged to project from the support body (41) to be received freely in the jacket groove (3).
    [3]
    Device according to one of Claims 1 and 2, characterized by
    [4]
    That it comprises a second tube positioner (14) arranged within a spirit portion (12) of the evacuation tube (6) located closest to said outlet means, which tube positioner (14) comprises a mounting means (15) for attaching the evacuation tube (15). 6) at the outlet means and a lockable connection (16) connecting the evacuation pipe (6) to the mounting device (15), said lockable connection (16) being a hinge connection, rotating the evacuation pipe (6) in at least one defining a center of rotation for vertical plane to enable positioning of the evacuation pipe (6) relative to the bottom surface (4) of the groove (3). Device according to claim 3, characterized in that the degree of said rotation is performed depending on the diameter of the drying cylinder (1) and the depth of the groove (3) so that an open end (10) of the evacuation tube (6) is located at a predetermined distance from the groove (3) bottom surface (4). 10 15 20 25 30 35 15
    [5]
    Device according to claim 3 or 4, characterized in that the hinge connection (16) comprises - an inner hinge body (17), which is fixedly mounted on the evacuation pipe (6) at a predetermined distance from the open end (13) of the end portion (12), and which is formed with a curved hinge surface (18), and - an outer hinge body (21), which consists of a first part (22) and a second part (23), which are separated from each other and which are arranged together to enclose it. the inner hinge body (17), which hinge body parts (22, 23) have internal hinge surfaces (24, 25) which are adapted to the hinge surface (18) of the inner hinge body (17) for slidable cooperation during said rotation of the evacuation tube (6) and for reading friction co-operation in each set position of the evacuation pipe (6).
    [6]
    Device according to claim 5, characterized in that the mounting device (15) and the body part (22) closest to it of the outer hinge body (21) are made in one piece.
    [7]
    Device according to claim 5 or 6, characterized in that the mounting member (15) and the outer hinge body (21) have axially through center holes which have a larger diameter than the evacuation tube (6) to thereby enable said rotation of the evacuation tube (6).
    [8]
    Device according to one of Claims 3 to 7, characterized in that the lockable hinge connection (16) is a ball joint with spherical hinge surfaces (18, 24, 25).
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3368288A|1966-02-11|1968-02-13|Jack W. Bell|Condensate syphon pipe for drying drum|
    DE2757579C3|1977-11-29|1981-01-29|Escher Wyss Gmbh, 7980 Ravensburg|Drying cylinder of a paper machine|
    IT1144735B|1981-06-09|1986-10-29|Beloit Italia Spa|PAPER SHEET DRYER CYLINDER FOR A CONTINUOUS PAPER MANUFACTURING SYSTEM|
    US5537756A|1993-07-01|1996-07-23|Voith Sulzer Papiermaschinen Gmbh|Device for evacuating condensate from a fluted drying cylinder by means of condensate evacuation pipes|
    IT246799Y1|1999-06-17|2002-04-10|System Plast Snc Marsetti & C|CLAMP FOR SUPPORT AND CONNECTION BODIES|
    US7618068B2|2007-06-28|2009-11-17|Kadant Johnson, Inc.|Siphon elbow|SE535153C2|2010-09-08|2012-05-02|Metso Paper Karlstad Ab|Positioning device for evacuation pipes in a drying cylinder|
    SE1251287A1|2012-11-13|2014-05-06|Valmet Aktiebolag|Yankee cylinder made of steel|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1000912A|SE535152C2|2010-09-08|2010-09-08|Positioning device for evacuation pipes in a drying cylinder|SE1000912A| SE535152C2|2010-09-08|2010-09-08|Positioning device for evacuation pipes in a drying cylinder|
    EP20110823845| EP2614183B1|2010-09-08|2011-09-01|Steam-heated drying cylinder|
    US13/818,608| US20130174437A1|2010-09-08|2011-09-01|Positioning device for a drain pipe in a drying cylinder|
    CN201180043453.7A| CN103109017B|2010-09-08|2011-09-01|A positioning device for a drain pipe in a drying cylinder|
    BR112013001243-9A| BR112013001243B1|2010-09-08|2011-09-01|steam-heated drying cylinder of a paper machine|
    PCT/SE2011/051054| WO2012033444A1|2010-09-08|2011-09-01|A positioning device for a drain pipe in a drying cylinder|
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