EP2383046A1 - Dispositif de buse - Google Patents

Dispositif de buse Download PDF

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Publication number
EP2383046A1
EP2383046A1 EP11003359A EP11003359A EP2383046A1 EP 2383046 A1 EP2383046 A1 EP 2383046A1 EP 11003359 A EP11003359 A EP 11003359A EP 11003359 A EP11003359 A EP 11003359A EP 2383046 A1 EP2383046 A1 EP 2383046A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
carrier
nozzle body
dome
nozzle device
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.)
Granted
Application number
EP11003359A
Other languages
German (de)
English (en)
Other versions
EP2383046B1 (fr
Inventor
Hans Joachim Struck
Lutz Fabiny
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Papiermaschinen-Systemtechnik GmbH
PAPIERMASCHINEN SYSTEMTECHNIK GmbH
Original Assignee
Papiermaschinen-Systemtechnik GmbH
PAPIERMASCHINEN SYSTEMTECHNIK GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Papiermaschinen-Systemtechnik GmbH, PAPIERMASCHINEN SYSTEMTECHNIK GmbH filed Critical Papiermaschinen-Systemtechnik GmbH
Publication of EP2383046A1 publication Critical patent/EP2383046A1/fr
Application granted granted Critical
Publication of EP2383046B1 publication Critical patent/EP2383046B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/34—Construction or arrangement of spraying pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/32—Washing wire-cloths or felts

Definitions

  • the invention relates to a nozzle device for releasable arrangement in the outlet of a tubular nozzle block, which is associated with a high-pressure cleaning or conditioning of a paper machine, with a rotationally symmetrical nozzle body having a shaped as an annular carrier with this surrounded, central recess and a on a Flat side of the support having its wall over the recess arching dome, and with a wall penetrating the first nozzle channel, in which at least a first nozzle member is arranged, which forms the liquid flowing through the nozzle channel to a laminar beam, wherein the support of the nozzle body has an outer contour having a constant or with respect to the rotational axis of symmetry of the nozzle body changing curvature.
  • high-pressure cleaning or conditioning for example, as transversely to the direction of the paper machine forming, so-called x-axis of the machine built, oscillating transversely to this axis, high-pressure spray tubes operated whose task is the continuous Cleaning or conditioning of sheet forming screens, press felts, dry covers and roll surfaces is.
  • Other forms of cleaning devices may be designed as so-called traversing cleaner, for example, which can be moved along the Gautschknmüs the paper machine and are used for the cleaning of fabrics or other facilities in different manufacturing sections of the paper machine.
  • water is used at an operating pressure in the range of 10 to 50 bar, which is referred to as high pressure.
  • Transversely to the x-axis extends the y-axis of the machine, while perpendicular to this, the z-axis, which is thus arranged generally parallel to the longitudinal axis of the nozzle sticks of the spray pipe.
  • HP spray pipes are described with the high-pressure nozzle devices described above, which are also referred to as high-pressure nozzle plates due to their flat profile, i. So equipped with so-called needle jet nozzles or HD nozzles.
  • HD nozzle devices are formed as platelets and are made of metal by stamping or turning. They have a round designated as a nozzle channel outlet channel in the main axis (longitudinal axis) of the nozzle body and pass through this a liquid jet, in particular water jet, which is also referred to as full jet or needle jet.
  • a liquid jet in particular water jet, which is also referred to as full jet or needle jet.
  • These HD nozzles emit a water jet, which is also referred to as a full jet or needle jet and has a substantially circular cross-section.
  • the nozzle devices mentioned above are for example from the DE 20 2005 020 149 whose main characteristic is the generation of a jet of water with as possible good jet laminarity. This characterizes that the jet does not dissolve in single drops before it hits. This is achieved mainly by a high accuracy in the production of the channel.
  • the height of the liquid volume flow used in the cleaning is determined by the water pressure used and the cross section of the outlet openings of the water jets, which can be regarded as conventional diameters of the order of a millimeter.
  • It is therefore an object of the present invention to provide a nozzle device is available which is easy to produce and improves the cleaning or conditioning performance of the associated nozzle stock or spray tube, while consuming a smaller amount of water and the greater flexibility in the cleaning process itself brings.
  • a nozzle device of the type mentioned in which at least one second nozzle member or at the nozzle body at least one further the wall of the dome sweeping nozzle channel provided with at least one further nozzle member in each case for forming a laminar beam on the nozzle body is, which passes through the recess of the carrier together with the first beam and that at least the support of the nozzle body has a multiple rotational symmetry and the dome has a rotational symmetry of equal or different count as the carrier or rotationally symmetrical with respect to the axis of rotation of the nozzle body is formed.
  • the nozzle body in approximately a radial region of the spray tube on which the nozzle can be arranged correspond.
  • the orientation of the high-pressure nozzle plate can be made during installation both so that the nozzle elements are juxtaposed in the x-direction, as well as, for example, offset at an angle of 45 ° with respect to the x-direction or even side by side along the y-direction, that is offset by 90 °.
  • a z-component of the axes of the water jets can occur due to radial displacement of the nozzle block on the spray tube.
  • the positioning of the nozzle at a certain angle can already be based on Position of the carrier with respect to the x-axis of the paper machine or with respect to the spray tube at least partially classify even at first glance.
  • the jets may exit parallel to each other or exit at an angle to the z-axis.
  • an angular position between the beam axes in this case, for example, an increase in the cleaning or conditioning performance of the spray tube and a thorough cleaning of double-layered sheet forming screens can be done.
  • the jets are arranged parallel to the x-axis, an increase in the cleaning or conditioning performance of each individual nozzle can be achieved, whereby a further intensification of the cleaning of screens and the conditioning of felts is achieved if the jets are at an angle to the z-axis. Exit axis.
  • the nozzle device is the recess of the carrier with respect to the rotational axis of symmetry of the nozzle body rotationally symmetric or rotationally symmetrical, so that in a simple manner with a potential rotation of the nozzle body at its recording synchronous, the configuration of the nozzle elements not influencing nozzle channel is formed.
  • rotational symmetry is meant here the invariance under any rotation about the axis of rotation in question.
  • the dome in the form of a spherical cap, an ellipsoid, a partial sphere, a cylindrical piece or a truncated cone is formed.
  • the nozzle device on which the nozzle elements can be arranged simpler in the production than in a fully curved dome, is provided with a dome, which has a flattened bottom on its side facing away from the carrier.
  • the ground arranged in a plane parallel to the recess of the carrier can be provided, for example, particularly simply with penetrations arranged perpendicular to the bottom or the parallel plane as nozzle elements, so that expediently, but not necessarily, another development of the nozzle device consists in that at least one nozzle element, preferably all nozzle elements are disposed on the nozzle body by cross-penetrating the dome.
  • the nozzle body has a flat profile with respect to the transverse extent in the plane of the carrier of small length parallel to the extension of the nozzle channel.
  • a particularly preferred embodiment of the nozzle device according to the invention in which the optimization as well with good cleaning and conditioning performance on the one hand and reduced water consumption on the other hand well, is provided on the nozzle body with one or two other nozzle elements and the nozzle elements are on a plane projection of the Domitzs radical Straight lines, so that an unambiguous positioning with respect to the axes defined primarily by the paper machine at any time without much effort is possible.
  • the outer contour of the body base is formed by two connected by straight contour sections, convex curved contour sections and then has an approximately oval-square shape on.
  • a with respect to this outer contour of the aforementioned distinctive, advantageous embodiment for the defined positioning of the nozzle device is characterized in that it is provided on its support with a closed polygon with preferably equal length straight contour sections and rounded corners, in particular as an octagon, causing the Turn nozzle body about by a tool in the manner of an open-end wrench at least relative to its previous position to change the configuration of the nozzle elements.
  • the contour section may be provided in the receiving opening of the nozzle block and a complementary in approximately matching area, where the contour portion in use position at least partially comes into contact, which in turn prevents unintentional rotation of the nozzle body during use.
  • the nozzle elements produce laminar beams of the same or different diameter, and one or more of the beams can have different diameters to one another, for example with larger or smaller diameters of outer beams with respect to a central beam, for example in a three-jet nozzle device.
  • Advantageous embodiments of nozzle device can in this case have a width extension of the water jets of about 0.1 mm to 1.2 mm, preferably from 0.2 mm to 0.9 mm, particularly preferably from 0.3 mm to 0.6 mm.
  • nozzle bodies of the nozzle device lying adjacent to each other can be aligned with diverging beams with an angular offset against the arrangement direction in a row of nozzle nozzles be.
  • a further development of the nozzle device can consist in a nozzle body provided with an angular nozzle element arrangement in that the bottom of the dome of the nozzle body has a curvature directed towards the central recess of the carrier, in which the nozzle elements are arranged with a substantially radial orientation, wherein the respective nozzle member vertically engages through the associated Dom convincedabschnitt so that the longitudinal axis of the nozzle member coincides with the normal of the curved surface of the wall of the dome at the outlet opening of the nozzle member and is predetermined by the curvature of the angle with respect to the axis of rotation.
  • the nozzle device can consist in a nozzle body provided with an angular nozzle element arrangement in that the bottom of the dome of the nozzle body has a curvature directed towards the central recess of the carrier, in which the nozzle elements are arranged with a substantially radial orientation, wherein the respective nozzle member vertically engages through the associated Dom convincedabites so that the longitudinal axis of the nozzle member coincide
  • An easy to be arranged on a nozzle and removable again embodiment of the nozzle device may provide the support of the nozzle body so that it has a recess enclosing, in this substantially parallel to the transverse extent of the nozzle body in projecting portion having with the Dominnenwand the dome of the nozzle body forms an undercut.
  • the respective circumferential projection around the recess forms on its side facing the curvature of the dome a kind of groove in which, for example, the claw of a tool can engage and detach the nozzle body from the nozzle.
  • nozzle device Easy to manufacture is an embodiment of the nozzle device, wherein the carrier together with the dome as a one-piece nozzle body, in particular as a stamped or turned part or the like produced by machining material processing Body, is provided.
  • the nozzle channels of the nozzle device according to the invention can on the one hand with the nozzle elements, for example, as a the wall of the cathedral cross-bore with optionally be formed over the length changing cross section, in which case the nozzle elements form the inflow-side portion of the bore.
  • the nozzle channels can also be provided with nozzle elements which are designed to be insertable in a receptacle of the nozzle channel, this insert then being particularly preferred as an insert which can be pressed into the receptacle from a hard material such as ruby, sapphire, diamond, a ceramic or a hard metal, in particular of a monocrystalline material may be provided.
  • the insert and the receptacle may have the same nominal size as outside or inside diameter, so that the insert of the nozzle element is held in its position via the press fit formed in this way.
  • an expedient refinement of the nozzle device according to the invention may be to provide the nozzle body on the dome side with a peripheral planar area, which then in the position of use at the relevant flange area rests with the associated nozzle block.
  • the nozzle device is secured against leakage and thus against leakage of liquid, between the flange portion of the nozzle block and the opposite nozzle body portion expediently the arrangement of a sealant, in particular a circular sealing ring may be provided which circumferentially on the nozzle body a passage of Fluid between the flange area and the carrier body base prevented.
  • the sealing means may in this case preferably be formed as a so-called flat gasket with a substantially quadrangular cross-section.
  • a further embodiment of the nozzle device can be fixed in a simple manner to the respective associated nozzle block, detachably and then changeable in its rotational configuration, so that in a further development the nozzle device with a fixing means, in particular a union nut with internal thread on which Nozzle can be arranged and secured against rotation in the position of use can be fixed.
  • Fig.1 to 6 each show a designated as a whole with 1 nozzle device for arrangement in the outlet of a not shown tubular, also not shown spray tube associated nozzle stock, which spray tube is in turn arranged on a cleaning device not shown, a paper machine.
  • the nozzle device 1 is provided with a rotationally symmetrical nozzle body 2, which has a carrier 3 in the form of an annular disc with a central, here circular recess 5.
  • a carrier 3 in the form of an annular disc with a central, here circular recess 5.
  • a flat side 4 of the support 3 arches with its wall a dome 6 on the recess 5, wherein two nozzle channels 7 pass through the wall of the dome, are arranged in which nozzle elements 8, which form the respective nozzle channel 7 penetrating liquid to a laminar beam.
  • the carrier 3 of the nozzle body 2 in the Fig.1 to 6 each have an outer contour with respect to the rotational axis of symmetry 9 of the nozzle body 2 changing curvature.
  • the outer contours of the carrier 3 of the nozzle devices 1 of Fig.1 and 2 shaped differently, namely on the one hand in the Fig.1 a closed polygon with equal straight contour sections 17 of the support 3 and rounded corner areas 18 and in the Fig.2 by two convex curved contour sections 19 connected by straight contour sections 17, so that there the support 3 is provided with four rounded corners 18, which are alternately connected by a straight and an oval rounded contour section 17, 19.
  • the recess 5 of the body base 3 with respect to the rotational axis of symmetry 9 of the nozzle body 2 is rotationally symmetrical.
  • the carrier 3 of the nozzle body 2 each have a multiple rotational symmetry, in the Fig.1 an eightfold, in the Fig.2 a twofold, which corresponds to a rotation of 45 ° or 180 ° to the cover, to which the nozzle device 1, however, is not fixed, since a different configuration can be achieved deliberately by twisting.
  • the dome 6 of the nozzle devices 1, by the arrangement of the nozzle elements 8 has a twofold symmetry and thus the same as the body base of the nozzle device of Fig.2 on, but a different to that of the nozzle device of Fig.1 ,
  • nozzle devices 1 are each shown with octagonal outer contour of the carrier 3 and it can be seen that in the local nozzle devices 1 of the dome 6 on its side facing away from the carrier 3 has a flattened from the original curvature of the dome 6 bottom 10 and the the nozzle elements 8 the bottom 10 of the mandrel 6 are arranged cross-wise on the nozzle body 2.
  • the FIGS. 3 to 6 can be seen that the nozzle body 2 has a flat profile with compared to the transverse extent in the plane of the carrier 3 of small length parallel to the extension of the nozzle channel 7.
  • two nozzle elements 8 are provided and the nozzle elements 8 lie on a plane projection of the Domêts 10 by sweeping straight lines.
  • the longitudinal axes 11 of the nozzle body 2 provided in the nozzle elements 8 and nozzle channels 7 are oriented parallel to the axis of rotation 9 of the nozzle body 2, while in the illustrations of the 4 and 6 the longitudinal axes 11 with the axis of rotation 9 each one identical include acute angles, resulting in divergent laminar beams.
  • the acute angle between the axes 9, 11 results from the fact that the dome bottom 10 of the respective nozzle body 2 has a curvature directed towards the central recess 5 of the carrier 3, in which the nozzle channels 7 or nozzle elements 8 are oriented in such a way that the longitudinal axis 11 of a nozzle element 8 or nozzle channel 7 coincides with the normal of the curved surface of the mandrel wall at the outlet opening of the respective nozzle element 8.
  • the carrier 3 in each case a recess 5 enclosing, in this substantially parallel to the transverse extent of the nozzle body into projecting portion 12, which forms a kind of groove 13 forming undercut with the Dominnenwand, so that the nozzle body 2 of a tool, not shown well would be tangible.
  • the carrier 3 of the nozzle body 2 in the edge region of its outer contour adjacent to each of the two flat sides 4 of the carrier has a circumferential chamfer 20.
  • the support 3 of the nozzle body 2 is formed so flat that in a position of use in the flange portion of the nozzle block concerned adjacent area of the support 3, a sealant 16 can be arranged, as the representations of Fig. 3, 5 is removable. While in the 3 and 5 the gasket 16 is formed with a flat, quadrangular cross-section, it is in the Figure 6 provided as a ring seal 16 with also annular, circular cross-section, which is partially received on the support 3 in a circumferential groove-like recess 15 with its cross section.
  • the invention described above accordingly relates to a nozzle device 1 for detachable arrangement in the outlet of a tubular nozzle block, which is associated with a high-pressure cleaning or conditioning of a paper machine, with a rotationally symmetrical nozzle body 2, which surrounds a shaped as an annular disc carrier 3 with this bordered, central Recess 5 and a domed on a flat side 4 of the carrier with its wall over the recess 5 dome 6, and with a wall penetrating the first nozzle channel 7, in which at least a first nozzle member 8 is arranged, which the nozzle channel 7 penetrating liquid forms into a laminar beam, wherein the carrier 3 of the nozzle body 2 is provided with an outer contour with a constant or with respect to the rotational symmetry axis 9 of the nozzle body 2 changing curvature.
  • a nozzle device 1 which is easy to manufacture and which improves the cleaning or conditioning performance of the associated nozzle stock or spray tube, while consuming a smaller amount of water as a cleaning fluid and brings a higher flexibility in the cleaning process itself, is proposed to the nozzle body 2 in the first nozzle channel.

Landscapes

  • Nozzles (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP11003359.4A 2010-04-30 2011-04-21 Dispositif de buse Active EP2383046B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010019184A DE102010019184A1 (de) 2010-04-30 2010-04-30 Düsenvorrichtung

Publications (2)

Publication Number Publication Date
EP2383046A1 true EP2383046A1 (fr) 2011-11-02
EP2383046B1 EP2383046B1 (fr) 2015-02-11

Family

ID=42993772

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11003359.4A Active EP2383046B1 (fr) 2010-04-30 2011-04-21 Dispositif de buse

Country Status (4)

Country Link
US (1) US20110266373A1 (fr)
EP (1) EP2383046B1 (fr)
DE (1) DE102010019184A1 (fr)
ES (1) ES2535476T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014118774B4 (de) * 2014-12-16 2016-11-03 Alfred Römhild Düsenvorrichtung für Hochdruckspritzrohre
US11752509B2 (en) * 2021-06-17 2023-09-12 Upside Foods, Inc. Fluid dispenser for recovering material from a surface

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29509934U1 (de) * 1995-06-22 1996-10-24 Struck Hans Joachim Randspritzdüse für Papiermaschinen, ausgeführt als Einzel- oder Doppelstrahldüse, mit aufschiebbarer Hülse für Luftzufuhr
DE202005020149U1 (de) 2004-12-24 2006-03-02 Struck, Hans Joachim Düsenvorrichtung zur Verwendung in einer Maschine zur Herstellung von Papier, Pappe etc., einer Zellstoffentwässerungsmaschine, etc.
DE102006007223A1 (de) * 2006-02-15 2007-08-16 Voith Patent Gmbh Düse für eine Reinigungseinrichtung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2298934A (en) * 1939-02-28 1942-10-13 Miles T Foster Spray nozzle
US2987262A (en) * 1959-11-24 1961-06-06 Lodding Engineering Corp Removable and replaceable shower device
US3218227A (en) * 1963-04-22 1965-11-16 Beloit Corp Knockoff shower for a fourdrinier machine
US6073861A (en) * 1999-05-24 2000-06-13 Heliojet Cleaning Technologies, Inc. Pressurized fluid cleaning system
US6378791B1 (en) * 2001-01-03 2002-04-30 Marvin Wayne Perry Spray wand for cleaning boat hulls
CN1984720B (zh) * 2004-05-11 2011-10-05 喷雾系统公司 具有可容易拆去的喷嘴的喷淋集管喷射装置
US7648086B2 (en) * 2004-12-24 2010-01-19 Hans-Joachim Bernd Struck Nozzle device for use in a paper machine, board machine, pulp dewatering machine or similar machines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29509934U1 (de) * 1995-06-22 1996-10-24 Struck Hans Joachim Randspritzdüse für Papiermaschinen, ausgeführt als Einzel- oder Doppelstrahldüse, mit aufschiebbarer Hülse für Luftzufuhr
DE202005020149U1 (de) 2004-12-24 2006-03-02 Struck, Hans Joachim Düsenvorrichtung zur Verwendung in einer Maschine zur Herstellung von Papier, Pappe etc., einer Zellstoffentwässerungsmaschine, etc.
DE102006007223A1 (de) * 2006-02-15 2007-08-16 Voith Patent Gmbh Düse für eine Reinigungseinrichtung

Also Published As

Publication number Publication date
EP2383046B1 (fr) 2015-02-11
ES2535476T3 (es) 2015-05-12
US20110266373A1 (en) 2011-11-03
DE102010019184A1 (de) 2010-11-25

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