EP1136133B1 - Buse de nettoyage - Google Patents

Buse de nettoyage Download PDF

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Publication number
EP1136133B1
EP1136133B1 EP00124283A EP00124283A EP1136133B1 EP 1136133 B1 EP1136133 B1 EP 1136133B1 EP 00124283 A EP00124283 A EP 00124283A EP 00124283 A EP00124283 A EP 00124283A EP 1136133 B1 EP1136133 B1 EP 1136133B1
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EP
European Patent Office
Prior art keywords
nozzle
fluid
nozzle body
housing
nozzle according
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
Application number
EP00124283A
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German (de)
English (en)
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EP1136133A3 (fr
EP1136133A2 (fr
Inventor
Roland Feller
Ernst Steinhilber
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.)
Spraying Systems Deutschland GmbH and Co KG
Original Assignee
Spraying Systems Deutschland GmbH and Co KG
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 Spraying Systems Deutschland GmbH and Co KG filed Critical Spraying Systems Deutschland GmbH and Co KG
Publication of EP1136133A2 publication Critical patent/EP1136133A2/fr
Publication of EP1136133A3 publication Critical patent/EP1136133A3/fr
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Publication of EP1136133B1 publication Critical patent/EP1136133B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/06—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet by jet reaction, i.e. creating a spinning torque due to a tangential component of the jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/003—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with braking means, e.g. friction rings designed to provide a substantially constant revolution speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/0409—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements
    • B05B3/0418—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements comprising a liquid driven rotor, e.g. a turbine
    • B05B3/0422—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements comprising a liquid driven rotor, e.g. a turbine with rotating outlet elements
    • B05B3/0427—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements comprising a liquid driven rotor, e.g. a turbine with rotating outlet elements the outlet elements being directly attached to the rotor or being an integral part of it
    • 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
    • B05B1/04—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 in flat form, e.g. fan-like, sheet-like

Definitions

  • the invention relates to a nozzle, which can be used in particular for cleaning the inner walls of containers, tanks and the like.
  • a nozzle which rotates (rotates) during operation and in which the fluid flowing through serves to drive.
  • cleaning nozzles should already run at low operating pressures, for example from about 0.5 bar.
  • higher operating pressures eg over 20 bar, have not too high speed. Too large a speed of the nozzle affects the cleaning effect.
  • the nozzle has a cylindrical housing in which a hollow shaft is rotatably supported by ball bearings. A first, upper end of the hollow shaft is arranged at an axial port, which serves for supplying a liquid. At the lower end of the shaft, a nozzle head is provided which rotates with the shaft. In the nozzle head a communicating with the shaft distributor pipe is provided, which is arranged on both sides of the shaft, transversely to this and carries at its ends respectively transversely branching mouthpieces.
  • the rotatably mounted distributor tube carries a gear wheel, which rolls on a gear fixed to the housing.
  • the drive is a turbine, which is rotatably connected to the hollow shaft.
  • the turbine has a rotor with several inclined blades.
  • the rotor is arranged in a housing having five frontal oblique holes as a fluid inlet. This introduces the fluid in the space between the turbine and the housing in such a way that the rotating turbine is slowed down even with increasing operating pressure and the speed does not rise above all limits.
  • the nozzle has a complicated mechanical structure, in particular by the separate turbine on. If the fluid is not completely clean, or if it contains particles for other reasons, these may be between the turbine and the housing and affect the function of the nozzle.
  • the branched off for driving purposes, not insignificant part of the liquid is also emptied through the bottom of the housing and not routed to the mouthpieces.
  • a further rotating nozzle which has a rotatably mounted in a housing hollow shaft with a rotatably connected thereto turbine.
  • the shaft is supported by a radial bearing surface on a bearing bore and an axial bearing surface.
  • the turbine is rotated or held in rotation by an injector.
  • the thrust bearing surface acts as a friction brake controlled by the fluid pressure. It counteracts the drive generated by the fluid driving force, which is applied to the turbine. This can be prevented over a wide pressure range too high a nozzle speed.
  • the nozzle has proven itself in practice. However, it can come to the friction brake with increasing fluid pressure to increased friction and thus wear. Long term wear resistance can be obtained by the choice of a suitable material, in the present case PTFE. The structure of the nozzle is a bit expensive.
  • the showerhead has a supply pipe, a fixed inner casing member connected to the feed pipe and supporting a plurality of inwardly projecting vanes, and a peripheral outer casing member formed as a turbine-like paddle wheel supporting a plurality of radially outwardly projecting arms.
  • the vanes lead over the supply pipe eih donatede Water through corresponding column to the outer housing element, which empties the water through holes in the arms outwards in height.
  • the shower and the lawn sprinkler are not suitable as cleaning nozzles. Rather, their task lies in the most even water distribution.
  • the object of the invention to provide a nozzle with high cleaning efficiency and a stable over wide pressure range rotational behavior, which has a simple, inexpensive construction.
  • the nozzle should be made as resistant and wear-resistant as possible against contamination.
  • the nozzle according to the invention comprises at least one fluid drive, which generates a drive torque and is connected to the nozzle body, and at least one brake device, which is likewise designed as a fluid drive and which supplies a torque opposite to the drive torque.
  • the speed of the nozzle is thereby stabilized, ie it is prevented that the rotational speed of the nozzle increases excessively when pressure is increased. Rather, the nozzle starts at low operating pressures already at a relatively high speed. As the pressure increases, the speed first decreases to a minimum value, from which it then slowly rises again as the pressure increases further. They are thus low Speeds possible even at high pressures. This can produce a powerful jet with large droplets and long throw, suitable for thoroughly cleaning a tank wall.
  • the fluid is foam, steam, steam-water mixture, water, acid, alkali or possibly a particle-containing fluid into consideration.
  • a braking effect is used for speed stabilization. This is achieved by an opposing torque resulting from separate fluid drives. This results in independent of the wear condition of the bearing braking effect.
  • the nozzle is therefore less susceptible to wear.
  • the functional separation of the fluid drive from the braking device also ensures decoupling of the two drive devices.
  • the drive and the braking action are independently adjustable and adapt to the needs, eg. To the desired speed behavior or the size of the nozzle.
  • a largely resistant to contamination and wear-resistant nozzle is obtained by a fluid drive
  • the rotor is formed by the housing of the nozzle body itself.
  • the incoming fluid flow is accelerated in the circumferential direction. Its spin causes the entrainment of the nozzle body, for example by friction.
  • the drive torque is generated directly on the housing.
  • the housing is practically empty (without internals).
  • the structure according to the invention in which all the gaps, free spaces and bearing points are traversed by the fluid, cause a self-cleaning of the nozzle. It is therefore applicable in the food and pharmaceutical sector and also otherwise, where it depends on special cleanliness.
  • the nozzle can be made of metal, a metal alloy, plastic, ceramic o.a. be manufactured and thereby adapted to desired applications.
  • the housing is preferably rotationally symmetrical (e.g., cylindrical) inside and outside.
  • the interior is free of internals that interfere with the flow, such as turbine blades or the like. As a result, adverse effects on the spray behavior are avoided.
  • a suitable design of the nozzle mouth makes it possible to produce a jet which emerges in a fan-shaped (flat jet) overall in radial as well as in axial direction. It is also possible to provide a plurality of nozzle openings which deliver circular-segment or fan-like fluid jets.
  • the beam angle obtained when the individual beam segments are projected into a plane containing the rotation axis preferably comprises 180 ° in order to fully reach a container inner wall. Depending on the application but also total beam angle of less than 180 ° can be formed.
  • a targeted design and arrangement of the nozzle mouths makes it possible to control the axial force acting on the nozzle body, for example, by recoil effects compensate or even completely cancel. As a result, frictional forces and moments on axial surfaces can be minimized.
  • the drive may include a swirl generating device which forms the entrance into the housing.
  • the swirl of the fluid then drives the nozzle body in the direction of rotation.
  • the swirl generating device is part of a slide bearing element provided for supporting the nozzle body, in which the fluid inlet of the nozzle is provided.
  • the swirl generating device has one or more, preferably three inlet openings, which connect the fluid inlet with the interior of the nozzle body in terms of flow and open in the radial direction and obliquely to the axial direction.
  • a portion of the housing, which covers the radially opening portions of the inflow openings, is seated on the swirl-generating device with little play.
  • Between the swirl generating device and the housing is preferably only a small, preferably annular and offset gap defined by about 0.01 mm to 0.2 mm, so that the storage of the nozzle body is effected by a fluid cushion of the inflowing fluid.
  • This type of plain bearing has proven to be particularly robust.
  • ball bearings can be dispensed with.
  • means for entrainment of the housing by the fluid for example, grooves or the like, may be provided in the housing.
  • the drive effect can thereby be strengthened.
  • the braking device set up to inhibit the nozzle body is preferably provided by the outlet of the Interior of the nozzle body, ie formed one or more nozzle mouth. Braking nozzle openings have a nozzle axis which does not intersect the axis of rotation of the housing.
  • the exiting fluid jet causes a recoil, which generates a torque and brakes the rotating body. It ensures a stable rotation regardless of the operating pressure.
  • the nozzle orifice concerned is preferably somewhat elongate in the axial direction and inclined against the radial which intersects it.
  • the braking effect through the nozzle mouth is preferably less than the driving effect of the drive device. If necessary, however, the drive can also be effected by the recoil of the nozzle mouth or several nozzles mouth and the braking action by the swirl generating device.
  • a plurality of such through-holes which operate as a fluid pressure-dependent braking devices, can be provided.
  • the nozzle body is rotatably mounted on a bearing element, at one end of which the fluid inlet is located and which carries at its other end a rigid axis about which the nozzle body rotates. Between the axis and the surrounding housing of the nozzle body of the free flow channel is formed, which contains substantially no obstacles.
  • a securing element is attached to the free end of the axle and can be released for cleaning purposes.
  • Thrust bearing surfaces on the bearing element and the securing element form with the associated surfaces on the nozzle body a plain bearing. There is no separate seal provided. During operation, leakage occurs on the sliding bearing surfaces, which results in fluid lubrication and reduces friction and wear.
  • a nozzle 1 according to the invention is illustrated, which serves to produce a fan-shaped, radially outwardly directed jet.
  • the nozzle 1 has a nozzle body 2, which according to Fig. 2 disposed between a bearing element 3 and a securing element 4 and is rotatably mounted on this.
  • the nozzle body has a cylindrical, with respect to a rotation axis 5 is substantially rotationally symmetrical housing 6, which defines a cylindrical inner space 7. At a side facing away from the securing element 4 end of the housing 6 is formed as a tubular neck 8 with a cylindrical inner peripheral surface 9. A radially inwardly projecting shoulder 10 divides the cylindrical inner peripheral surface 9 into a first cylindrical portion 9a and a second portion 9b which forms the free end of the neck 8 and has a slightly larger inner diameter than the portion 9a.
  • the neck 8 merges into a portion 11 of the housing, which has a larger inner and outer diameter in relation to the neck 8, so that the inner space 7 expands there to form a cylindrical chamber 12.
  • the section 11 is followed by an annular extension 13 with a cylindrical inner surface 14 and an annular end face 15, which forms the upstream, the securing element 4 facing the end of the housing 6.
  • the extension 13 is arranged concentrically to the neck 8 and preferably has approximately the same inner diameter.
  • one or more openings 17a, 17b, 18 are provided for the formation of Düsenmündern.
  • the openings 17a, 17b are as function-determining nozzle mouths in rounded transition sections 19a, 19b between the section 11 and the extension 13 and the Neck 8 is formed. They produce a fan-shaped beam whose boundaries are approximately the axial direction and the radial direction. Depending on the desired jet behavior, other designs of the nozzle mouth are possible.
  • the formation of the nozzle orifices 17a, 17b and their arrangement in the opposite transition sections 19a, 19b permit at least partial compensation of the axial force acting on the nozzle body 2 by the fluid.
  • the opening 18 is arranged in the central region of the portion 11 of the housing 6 between the openings 17 a, 17 b, spaced in the circumferential direction by 180 ° therefrom. It is limited in the axial direction by walls 21a, 21b and in the circumferential direction by walls 22a, 22b and trapezoidal in side view.
  • the walls 21a, 21b are, for example, slightly curved and inclined at an angle to the exit surface.
  • the opening 18 widens outwardly in the axial direction.
  • the axially aligned and mutually preferably parallel walls 22a, 22b are arranged inclined in the circumferential direction and against the radial.
  • the respective nozzle mouth is arranged so that it generates a reaction of the rotation of the nozzle body 11 counteracting reaction.
  • a fluid inlet 23 which is formed by an axial bore 24 with internal thread 25 for rotatable mounting of the nozzle body 2.
  • an axis 26 is provided which has an external thread 29 between its free end 27 and provided at her radially inwardly projecting step 28.
  • the bearing element is rotationally symmetrical with respect to the axis of rotation 5. It has a first cylindrical wall region 31 surrounding the fluid inlet 23 and subsequently thereto a region 32, which tapers with a curvature and merges into a cylinder section 33.
  • the cylinder section 33 in which the axial bore 24 forming the fluid inlet 23 ends in a blind bore, has an end face 34 and a lateral surface 35.
  • the shoulder 10 of the neck 8 is supported in the static state. During operation (under fluid pressure), the shoulder 10 is slightly raised from the end face 34 and preferably does not touch it.
  • the radius of the lateral surface 35 of the cylindrical portion 33 arranged coaxially with the axis 5 is slightly less than the inner radius of the inner wall 9b of the neck 8.
  • the remaining clearance serves as a bearing play of a slide bearing arrangement 36.
  • the nozzle 1 is preferably made of a suitable material, preferably made of a corrosion-resistant metal, ceramic or plastic.
  • the cylinder portion 33 forms a swirl generating device 41, which accelerates the inflowing fluid in the circumferential direction.
  • the cylinder portion 33 has e.g. three equidistantly arranged inlet openings 42. Each is formed by a groove 43 intersecting the end face 34 and the lateral surface 35.
  • the grooves 43 are inclined with a slope against the axial direction (in the manner of a steep thread) and have connection with the axial bore 24th
  • the nozzle body 2 is secured on the bearing element 3 by the securing element 4, which has an axial bore 44 with internal thread 45.
  • An arranged in the interior 7 of the nozzle body 2 flow body 46 of the Securing element 4 has an arcuate, expanding in the flow direction outer wall, so that the fluid is deflected with little resistance to the nozzle mouth 17a. The fluid is hardly swirled and the spraying behavior is not impaired.
  • an annular bearing surface 47 is provided, which forms with the inner surface 14 of the extension 13, a further slide bearing assembly 48 for the nozzle body 2.
  • the bearing clearance is about 0.1 mm.
  • an axial bearing surface 49 is provided following the bearing surface 47, which fixes the nozzle body in the axial direction with little play with the end face 15 of the extension 13. At the two slide bearing assemblies 36, 48 no additional seal is required or provided.
  • the fluid passes via the fluid inlet 23 to the inlet openings 42 of the swirl generating device 41, which form the entrance of the interior 7.
  • the fluid jet is passed through the inlet openings 42 in three sub-beams with swirl in the interior.
  • the swirl-producing grooves 43 are approximately at an angle of 35 ° to 55 °, preferably about 45 °, to the axis of rotation.
  • the incoming fluid stream is initially deflected radially outwardly and also circumferentially.
  • the fluid flowing with swirl impinges on the inner wall of the neck 8 and the housing 6. It occurs on a driving effect, which generates a torque acting on the housing 6 and the housing 6 rotates.
  • the swirl generating device 41 and the housing 6 thus form a first fluid drive 51 for the nozzle body 2.
  • the fluid that has entered the housing 6 exits through the openings 17a, 17b, 18, each in jets.
  • the Rays are each fan-shaped and complement each other overall to a fan-shaped beam extending from the axis of rotation 5 over 180 ° to the axis of rotation 5.
  • the fan is divided into individual compartments, which are assigned to the respective Düsenmündern. They can be offset in the circumferential direction.
  • the one from the lateral nozzle mouth i.
  • the jet 18 emits a reaction force acting on the housing 6, but the direction of force does not intersect the axis of rotation 5.
  • the force direction is offset by about 30 against the radial. This results in acting on the housing 6 braking torque.
  • the lateral nozzle mouth 18 thus forms a braking device.
  • the braking torque corresponds to the recoil, the exiting beam exerts on the housing 6 and is thus pressure-dependent.
  • the recoil tends to increase with increasing pressure.
  • the driving torque corresponds to the swirl, the liquid entering the housing 6 and thus tends to increase as the fluid velocity increases and thus as the fluid pressure increases.
  • very low pressures such as below 0.5 bar
  • the braking effect of the recoil at the opening 22a is low. It overcomes the driving torque through the spin of the fluid.
  • the nozzle rotates at a speed of up to 30 rpm.
  • recoil braking at the port 18 becomes effective.
  • the speed drops to values of, for example, 3 rpm to 4 rpm at 1 bar.
  • the housing 6 and its bearings are designed so that almost no axial force acts on the housing 6, which occurs at the bearings barely braking friction in appearance.
  • the axial thrust of the housing 6 can be controlled by the formation of the nozzle mouth 17a, 17b and 18.
  • the rotational speed of the nozzle body 6 gradually increases again - it outweighs some of the driving effect by the swirl of the fluid.
  • the gain can be linear at the flat slope of the curve. Experiments show at 20 bar a number of revolutions of 24 U / min. The nozzle thus shows a self-stabilizing function of the speed.
  • the slow but stable rotation of the housing 6 allows at high pressure, the leakage of the fluid with a long throw and good cleaning effect even on large containers.
  • the interior of the housing 6 can be made completely free. In particular, no internals or the like. Are required. As a result, the spray behavior of the individual nozzle openings on the nozzle body 2 (housing) is not disturbed and the exiting fluid jet is not affected, as may be the case when turbines or the like are accommodated in the housing. In addition, there is a linear dependence between the fluid pressure and the flow rate, such as FIG. 5 illustrated.
  • the nozzle has a low internal flow resistance, which is particularly important at higher pressures and thus higher flow rates.
  • the nozzle can be used not only at very low pressures and in low-density fluids such as air, steam or foam, but also and especially for liquids with high pressures, which achieve a good cleaning effect.
  • the nozzle drive is effected by the drive means 51 and the braking by the braking means 18.
  • the speed-pressure curve has a trough-shaped course.
  • a likewise stabilized characteristic curve can also be obtained if the opening 18 is an overriding moment generated and acts as a drive, while the drive means 51 is weaker and acts as a brake.
  • nozzle according to the invention is illustrated in Fig. 7a, 7b .
  • a pin fuse 52 is provided for fastening the securing element 4 to the bearing element 3.
  • the axial bore 44 of the securing element 4 is formed as a central bore.
  • a pin here serves a spring pin 53 made of a resilient material which is inserted in a through hole 54 at the free end 27 of the axis 26 to fix the nozzle 1 in the axial direction.
  • On a cap 55 of the fuse element 4 can also through holes or the spring connector 53 receiving radial grooves 56 may be provided to additionally secure the fuse element 4 against rotation.
  • the advantage of the pin lock 52 or a corresponding fuse from the outside is that the central bore 44 as well as the axis 26 threadless, so smooth-walled formed and low gap, especially without labyrinth gaps, can be connected. In the remaining columns, which can be flushed by the fluid, dirt particles or the like can hardly be fixed. This allows in particular the applications in the pharmaceutical and food sector.
  • Fig. 7a, 7b are the swirl generating means 41 forming grooves 43 in reverse Senses aligned as in the embodiment according to Fig. 1 to 4 , so that the nozzle body 2 is seen here in the flow direction driven counterclockwise. Accordingly, to achieve the desired braking effect, the lateral nozzle mouth 18 is inclined in the other direction against the radial.
  • a nozzle which can be used in particular for cleaning purposes, has a rotatably mounted nozzle body, on which one or more nozzle orifices are provided.
  • a rotary drive is the nozzle housing itself, which is entrained by a swirled into the housing liquid.
  • at least one braking device is provided on the nozzle, which generates a braking torque by fluid action.
  • the recoil is used at a nozzle opening here.

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  • Nozzles (AREA)

Claims (16)

  1. Buse (1), destinée notamment au nettoyage de récipients au moyen d'un fluide, dans laquelle :
    - un corps de buse (2) monté en rotation présente un boîtier (6) avec dans celui-ci au moins une embouchure de buse (17a, 17b, 18) à travers laquelle le fluide sort de la buse (1) dans l'environnement,
    - un entraînement de fluide (51) est relié au corps de buse (2),
    - un dispositif de freinage (18), séparé du premier entraînement de fluide (51) est conçu pour bloquer la rotation du corps de buse (2), ce dispositif de freinage étant constitué par un second entraînement de fluide (18), cette buse étant caractérisée en ce que le boîtier (6) du corps de buse (2) présente un espace interne (8) sans chicanes, traversé par le fluide, et qui, pour le premier entraînement de fluide (51) sert de rotor entraîné par l'action du fluide.
  2. Buse selon la revendication 1, caractérisée en ce qu'elle est fabriquée entièrement en métal résistant à la corrosion.
  3. Buse selon la revendication 1, caractérisée en ce que le boîtier (6) du corps de buse (2) est cylindrique et entoure un espace interne (7), essentiellement de révolution, qui traverse le fluide, et il est prévu un dispositif générateur de rotation (41) qui met en rotation le courant de fluide.
  4. Buse selon la revendication 1, caractérisée en ce que l'embouchure de buse (17a, 17b, 18) est constituée de manière que le jet de fluide sortant a la forme d'un éventail divisé en plusieurs segments qui, rabattus en direction périphérique, donnent de préférence un angle de jet de 180°.
  5. Buse selon la revendication 3, caractérisée en ce que le dispositif générateur de rotation (41) qui constitue l'entraînement du fluide (51) est disposé à l'entrée de l'espace interne (7) ou forme celui-ci et présente au moins une ouverture d'entrée allant de l'entrée de fluide (23) à l'espace interne (7).
  6. Buse selon la revendication 3, caractérisée en ce que le dispositif générateur de rotation (41) est constitué par une section de cylindre (33) qui est de préférence une partie d'un élément de palier (3) conçu pour le montage rotatif du corps de buse, et présentant une surface périphérique externe (35) ainsi qu'une face frontale (34) en forme d'anneau circulaire regardant dans le sens d'écoulement, et dans cet élément est creusée une rainure (43) s'ouvrant sur la surface périphérique (35) et sur la face frontale (34) en étant inclinée par rapport à la direction axiale, avec entre la surface périphérique (35) et le boîtier (6) du corps de buse (2), qui lui est concentrique, une faible fente (37) pour le montage du boîtier (6).
  7. Buse selon la revendication 3, 5 ou 6, caractérisée en ce qu'il est prévu plusieurs, de préférence trois ouvertures d'entrée (47) de préférence équidistantes en direction périphérique et orientées dans le même sens.
  8. Buse selon la revendication 1, caractérisée en ce que le dispositif de freinage (18) est constitué par au moins une ouverture de passage (18) prévue dans le boîtier (6) et sur laquelle le fluide qui sort engendre une force de réaction.
  9. Buse selon la revendication 8, caractérisée en ce que l'ouverture de passage (18) est limitée en direction périphérique par une paroi (22b) de direction essentiellement axiale, qui est inclinée vers l'extérieur dans le sens de rotation et qui exerce sur le jet de fluide sortant une réaction qui bloque le mouvement de rotation du corps de buse (2).
  10. Buse selon la revendication 9, caractérisée en ce qu'une autre paroi (22a), qui limite l'ouverture du passage (18) dans la direction périphérique, se trouve en avant de la première paroi (22b) quand le corps de buse (2) tourne, en étant orientée parallèlement à celle-ci.
  11. Buse selon la revendication 1, caractérisée en ce que pour le montage du corps de buse (2), il est prévu un élément de palier (3) dans lequel débouche une entrée de fluide (23) et qui porte à son extrémité éloignée de cette entrée, un axe (26) qui définit l'axe de rotation du corps de buse, ainsi qu'un élément de sécurisation (4) qui peut être fixé à l'extrémité libre (27) de cet axe (26) et qui présente une portée de palier axial (49) ainsi qu'une portée de palier radial (47) pour le corps de buse (2).
  12. Buse selon la revendication 11, caractérisée en ce que sur l'élément de palier (3) est prévu un épaulement annulaire (34) faisant saillie radialement vers l'extérieur et qui, avec la portée de palier axial (49) de l'élément de sécurisation (4) en regard de celui-ci, sécurise la tête de buse (2) en direction axiale, sans serrage et avec un faible jeu.
  13. Buse selon la revendication 12, caractérisée en ce que la portée de palier axial (49) sert d'étanchéité et que de plus il n'est pas prévu pour le corps de buse (2), d'autre sécurité dans la zone de la portée de palier axial (49).
  14. Buse selon la revendication 1, caractérisée en ce qu'il est prévu, pour le montage rotatif du corps de buse (2) un système de paliers de glissement (36, 48).
  15. Buse selon les revendications 11 et 14, caractérisée en ce que le système de paliers de glissement (36, 48) est constitué par une surface externe (35) cylindrique coaxiale à l'axe de rotation (51), prévue sur l'élément de palier (3), et par la portée du palier radial (47) de l'élément de sécurisation (4).
  16. Buse selon la revendication 15, caractérisée en ce que dans le système de paliers de glissement (36, 48) et sur la portée de palier radial (47), est établie une fente pour assurer la lubrification liquide.
EP00124283A 2000-02-16 2000-11-14 Buse de nettoyage Expired - Lifetime EP1136133B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10006864 2000-02-16
DE10006864A DE10006864B4 (de) 2000-02-16 2000-02-16 Reinigungsdüse

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EP1136133A2 EP1136133A2 (fr) 2001-09-26
EP1136133A3 EP1136133A3 (fr) 2004-12-15
EP1136133B1 true EP1136133B1 (fr) 2008-07-30

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US (1) US7063274B2 (fr)
EP (1) EP1136133B1 (fr)
DE (2) DE10006864B4 (fr)
DK (1) DK1136133T3 (fr)

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DE102004058496A1 (de) * 2004-12-04 2006-06-14 Gardena Manufacturing Gmbh Drehbare Fontänenanordnung und Vorrichtung zur Drehung einer Fontänenanordnung
US8016210B2 (en) * 2005-08-19 2011-09-13 Balanced Body, Inc. Self regulating fluid bearing high pressure rotary nozzle with balanced thrust force
FR2894853B1 (fr) 2005-12-15 2008-03-14 Sidel Sas Dispositif de projection d'un liquide
US7938339B2 (en) * 2007-11-02 2011-05-10 Steris Inc. Nozzle assembly for a washer
ES2456351T3 (es) 2008-06-17 2014-04-22 Dixon Pumps, Inc. Aparato y procedimiento de limpieza de un depósito de almacenaje
DE102009006163A1 (de) 2009-01-26 2010-07-29 Meiko Maschinenbau Gmbh & Co. Kg Lager für Sprüharme in Reinigungsvorrichtungen
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DE102009059038A1 (de) 2009-12-11 2011-06-16 Lechler Gmbh Tankreinigungsdüse
EP2468104B1 (fr) 2010-12-23 2018-09-12 GEA Food Solutions Bakel B.V. Procédé de nettoyage pour tambour de moulage
DE202011109850U1 (de) * 2011-04-06 2012-08-08 Lechler Gmbh Rotierende Düsenanordnung
DE102011078857A1 (de) 2011-07-08 2013-01-10 Lechler Gmbh Sprühdüse und Verfahren zum Erzeugen wenigstens eines rotierenden Sprühstrahls
DE102011080879A1 (de) * 2011-08-12 2013-02-14 Lechler Gmbh Tankreinigungsdüse
DE102015003561A1 (de) * 2015-03-18 2016-09-22 Gea Tuchenhagen Gmbh Rotierender Reiniger
US10598449B2 (en) 2016-10-17 2020-03-24 Federal Signal Corpoation Self-rotating tube cleaning nozzle assembly
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DE102018000528A1 (de) 2018-01-21 2019-07-25 Michael Layher Düsenvorrichtung zum Ausbringen von Fluiden
EP3888796B1 (fr) * 2018-11-05 2023-08-30 P.A. S.p.A. Ensemble de buse à jet rotatif pour dispositifs de nettoyage sous pression
DE102020123566A1 (de) 2020-09-09 2022-03-10 Krones Aktiengesellschaft Reinigungsdüse für eine Abfüllanlage und Verfahren zum Montieren einer Reinigungsdüse
EP4005686A1 (fr) * 2020-11-30 2022-06-01 Alfa Laval Corporate AB Appareil et système de nettoyage rétractable

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Also Published As

Publication number Publication date
DE10006864A1 (de) 2001-11-08
DK1136133T3 (da) 2008-11-17
DE50015283D1 (de) 2008-09-11
US20010017323A1 (en) 2001-08-30
US7063274B2 (en) 2006-06-20
EP1136133A3 (fr) 2004-12-15
DE10006864B4 (de) 2006-02-09
EP1136133A2 (fr) 2001-09-26

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