EP3439789A1 - Buse rotative à haute pression - Google Patents

Buse rotative à haute pression

Info

Publication number
EP3439789A1
EP3439789A1 EP17716818.4A EP17716818A EP3439789A1 EP 3439789 A1 EP3439789 A1 EP 3439789A1 EP 17716818 A EP17716818 A EP 17716818A EP 3439789 A1 EP3439789 A1 EP 3439789A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
gap
pressure rotor
nozzle holder
channel
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
EP17716818.4A
Other languages
German (de)
English (en)
Other versions
EP3439789B1 (fr
Inventor
René NÖLLE
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.)
Hammelmann GmbH
Original Assignee
Hammelmann 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 Hammelmann GmbH filed Critical Hammelmann GmbH
Priority to PL17716818T priority Critical patent/PL3439789T3/pl
Publication of EP3439789A1 publication Critical patent/EP3439789A1/fr
Application granted granted Critical
Publication of EP3439789B1 publication Critical patent/EP3439789B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B05B3/002—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements comprising a moving member supported by a fluid cushion
    • 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

Definitions

  • the invention relates to a high-pressure rotor nozzle according to the preamble of claim 1.
  • a high-pressure rotor nozzle is used, for example, for removing adhering dirt on surfaces, in particular on inner and outer surfaces of pipes, containers or the like, with a fluid pressure of up to 4,000 bar.
  • the high-pressure rotor nozzle has a nozzle holder rotatably mounted about an axis, which can be driven by the recoil of the pressurized water exiting from nozzles of the nozzle holder.
  • the nozzle holder is mounted in a base body, which has a central, axially aligned channel for supplying the pressurized fluid, which communicates with the nozzles.
  • At least one of the gap seals between the nozzle holder and the base body against the direction of the recoil force is tapered conically, so that the height of the gap seal increases with increasing recoil force, resulting in increased leakage volume and thus power losses up to how 50% leads, resulting in a correspondingly reduced in relation to the applied energy cleaning efficiency.
  • gap seals are provided, two of which are separated by leakage bores emanating from the channel and a third, by the leakage chamber of the other two Ren separated, is also provided between the nozzle holder and the base body.
  • These gap seals are assigned to the high pressure area.
  • This likewise applies to a rotor nozzle known from US Pat. No. 4,821,961, in which the leakage chamber merges into a radially aligned low-pressure gap, the height of which likewise changes depending on the axial movement of the nozzle holder due to recoil, wherein a leakage exit is proportional to the cube of the height of the Low pressure gap results. This causes an unstable compensation of the recoil forces, so that even this rotor nozzle is not suitable to meet the demands placed to the desired extent.
  • a throttle transverse bores which open, starting from one of the leakage chambers in an axial gap with outlet to the outside.
  • the throttle effect is achieved by a cross-sectional constriction of the inlet region of the transverse bore when the nozzle holder moves axially, wherein the cross-sectional change of the transverse bores is effected by a part of the lateral surface of the nozzle holder.
  • the invention has for its object to further develop a high-pressure rotor nozzle of the generic type so that their functionality improved and their efficiency is increased.
  • a high-pressure rotor nozzle having the features of claim 1.
  • the invention encloses a portion of the nozzle holder circumferentially with gap spacing, the volume flow of high-pressure leakage, which is supplied via the gap seal of the leakage chamber, regardless of the axial position of the rotating nozzle holder unchanged.
  • the throttle gap forms a low pressure region, for example, with a pressure of about 20 bar, wherein a force balance, depending on the fluid pressure, by a self-adjusting length of the throttle gap.
  • the throttle gap preferably has a constant height, for which purpose the base body, as well as the nozzle holder, which together define the throttle gap radially, have cylindrical surfaces facing each other, namely the main body an inner and the nozzle holder an outer lateral surface.
  • the nozzle holder Due to the axially acting repulsive force of the fluid emerging from the nozzles, the nozzle holder is displaced axially in the direction of the leakage chamber, the leakage liquid involved practically forms an abutment and counteracts the repulsive force.
  • a braking device is arranged in the leakage chamber, which is part of the nozzle holder and which is similar to a ship's propeller as a fluid brake or alternatively as a magnetic brake.
  • the high-pressure rotor nozzle has an outer sleeve, which is dimensioned in its axial extent so that they the gap seal which is associated with the nozzles is at least largely covered, wherein a circumferential annular gap is formed, which communicates with the fluid-supplying channel likewise in a fluid-open manner as with the nozzles. That is, the fluid under high pressure is passed through the annular gap to the nozzles, wherein the supply of the fluid to the annular gap or from the annular gap to the nozzles by introduced feed channels takes place.
  • the effective pressure in the annular gap counteracts the internal pressure of the guided in the associated gap seal fluid, so that the gap seal remains unchanged in their dimension, i. is not expanded, whereby an increase in leakage leakage is effectively prevented.
  • This structural design also offers manufacturing advantages, since above all can be dispensed with the introduction of relative to the diameter relatively long holes, which naturally results in a significant cost savings.
  • FIGS 1 to 3 each an embodiment of an inventive
  • High-pressure rotor nozzle in a longitudinal section.
  • FIG. 1 shows a high-pressure rotor nozzle which, in the simplest case, has laterally exiting radial nozzles 5 and optionally an axial nozzle 20.
  • the rotor nozzle consists of a base body 1 and a nozzle holder 2 rotatably mounted therein, which can be driven by means of the radial nozzles 5 held therein.
  • an axially extending centric channel 3 is introduced, which starts from a port 17 and opposite ends in the fixed, held in the base body 1 axial nozzle 20.
  • liquid under high pressure 500-4000 bar
  • the channel 3 which has transverse bores 8, via which the liquid is guided into a circumferential pocket 15 between the main body 1 and the nozzle holder 2 to the radial nozzles 5 Incidentally, inclined to the axis of rotation of the nozzle holder 2 to the axial jet 20 inclined.
  • a first gap seal 6 is formed, via the leakage water in a leakage chamber 1 1 is feasible, while the opposite, adjoining the pocket 15 , the axial nozzle 20 associated region is formed as a second gap seal 7, wherein both gap seals 6, 7 form a high-pressure gap seal.
  • the arrangement of the terminal 17 can be seen by way of example. It is also conceivable positioning in any other suitable area, for example. On the opposite side.
  • the leakage chamber 11 which forms an axial bearing in function, is filled with the fluid entering through the first gap seal 6 into at least one throttle gap 12 extending axially parallel to the passage 3 and surrounding the nozzle holder 2 in a subregion. which is open to the atmosphere, wherein the fluid pressure through the throttle gap 12 is greatly reduced.
  • a pressure is generated by the throttle gap 12 in the leakage chamber 1 1, which is dependent on the penetrating through the first gap seal 6 in the leakage chamber 1 1 leakage amount, the constant height of the throttle gap 12 and its variable length.
  • the pressure built up in the leakage chamber 11 acts as a force against the nozzle holder 2 which is axially displaceable by recoil forces and pushes it in a direction opposite to the connection 17.
  • the farther the nozzle holder 2 moves the shorter the length of the throttle gap 12, which in turn lowers the pressure in the leakage chamber 1 1 and thus reduces the force acting on the nozzle holder 2 force.
  • the nozzle holder 2 then rotates as a low-friction thrust bearing without contact on the water cushion formed in the leakage chamber 1 1.
  • the nozzle holder 2 consists of an inner support sleeve 14 and an outer sleeve 1 9, between which in the overlap region of the second gap seal 7, an annular gap 1 0 is formed via supply channels 9 with the bag 15 is liquid-open in communication.
  • annular gap 1 0 are provided in the nozzle holder 2 inclined to the axis of rotation extending frontal nozzles 4 through which exits through the annular gap 1 0 fluid exiting under high pressure, as well as from the radial nozzles 5, which also with the bag 15 in connection and at the same time cause a rotation of the nozzle holder 2 due to the remindure agency.
  • a braking device in the form of a fluid brake 1 3 is arranged, which is part of the nozzle holder 2 and the speed reduction of the rotating nozzle holder 2 is used so as to achieve a more efficient cleaning effect.
  • the main body 1 for forming the throttle gap 1 2 a circumferential shell portion 1 6, which is part of the base body 1 and the inner circumferential surface partially forms an outer boundary of the throttle gap 12 and the leakage chamber 1 1.
  • FIG. 3 Another example of the invention is shown in Figure 3, in which, however, only radial nozzles 5 are used, while the front side a thrust bearing 1 8 for supporting the outer sleeve 1 9 is provided.
  • a magnetic brake 13 ' instead of a fluid brake 1 3, a magnetic brake 13 ' can be provided for speed reduction of the nozzle holder 2, which is shown only for clarity.

Landscapes

  • Nozzles (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

L'invention concerne une buse rotative à haute pression, pourvue d'un corps de base (1), présentant un canal (3) pour l'introduction d'un liquide sous haute pression, d'un support (2) de buse pouvant être entraîné en rotation par un couple de rotation produit de manière hydraulique, qui présente au moins une buse (4, 5) reliée fluidiquement au canal (3), provoquant un recul axial lors du fonctionnement, une chambre d'évacuation (11), formant un palier de butée axial hydraulique lors du fonctionnement, étant disposée entre le corps de base (1) et le support (2) de buse pouvant être déplacé axialement en fonction du recul par rapport à celui-ci, qui est reliée avec un premier joint (6) à fente guidant le liquide de fuite entre le corps de base (1) et le support (2) de buse. Selon l'invention, la chambre d'évacuation (11) se change en au moins une fente d'étranglement (12) variable, entourant le support (2) de buse périphériquement dans une zone partielle axiale, dont l'étendue axiale correspond à la voie de déplacement du support (2) de buse, la fente d'étranglement (12) présentant une hauteur qui reste identique sur sa longueur axiale.
EP17716818.4A 2016-04-07 2017-04-05 Buse rotative à haute pression Active EP3439789B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17716818T PL3439789T3 (pl) 2016-04-07 2017-04-05 Wysokociśnieniowa dysza wirnikowa

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016106376.2A DE102016106376A1 (de) 2016-04-07 2016-04-07 Hochdruck-Rotordüse
PCT/EP2017/058052 WO2017174622A1 (fr) 2016-04-07 2017-04-05 Buse rotative à haute pression

Publications (2)

Publication Number Publication Date
EP3439789A1 true EP3439789A1 (fr) 2019-02-13
EP3439789B1 EP3439789B1 (fr) 2021-05-26

Family

ID=58536945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17716818.4A Active EP3439789B1 (fr) 2016-04-07 2017-04-05 Buse rotative à haute pression

Country Status (7)

Country Link
US (1) US11077453B2 (fr)
EP (1) EP3439789B1 (fr)
DE (1) DE102016106376A1 (fr)
DK (1) DK3439789T3 (fr)
ES (1) ES2883625T3 (fr)
PL (1) PL3439789T3 (fr)
WO (1) WO2017174622A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH714354A2 (de) * 2017-11-17 2019-05-31 Mvt Micro Verschleiss Technik Ag Düsenvorrichtung für ein Fluid, Verfahren zur Herstellung einer Düsenvorrichtung sowie Kit, umfassend einen Rotor und eine Hohlnadel für eine Düsenvorrichtung.
CN114526163B (zh) * 2022-04-24 2022-07-26 中国航发四川燃气涡轮研究院 滑油喷嘴装置及航空发动机

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4821961A (en) 1988-03-31 1989-04-18 Nlb Corp. Self-rotating nozzle
DE4001335C1 (en) * 1990-01-18 1991-01-31 Paul Hammelmann Maschinenfabrik Gmbh, 4740 Oelde, De High-pressure plunger pump - incorporates adjustable sleeve and disc-types inlet valve
US5141158A (en) * 1991-04-24 1992-08-25 Halliburton Company Eddy current braked spinning jet nozzle
DE19711837A1 (de) * 1997-03-21 1998-09-24 Hammelmann Paul Maschf Düsenkopf mit einem um eine Längsachse drehbar gelagerten, antreibbaren Düsenträger
DE10029920C2 (de) * 2000-06-17 2002-07-11 Horst Goetz Gmbh & Co Düsenartiges Arbeitswerkzeug zum Reinigen von Rohren
EP1830964B1 (fr) * 2004-12-30 2015-10-14 Tempress Technologies, Inc. Rotor de turbine a reaction a tete flottante a qualite de jet amelioree
US8016210B2 (en) 2005-08-19 2011-09-13 Balanced Body, Inc. Self regulating fluid bearing high pressure rotary nozzle with balanced thrust force
DE202008002597U1 (de) * 2007-02-26 2008-04-30 Falch Hochdruckstrahlsysteme Gmbh Rotordüse
US8298349B2 (en) 2009-08-13 2012-10-30 Nlb Corp. Rotating fluid nozzle for tube cleaning system
US8544768B2 (en) * 2009-11-10 2013-10-01 Stoneage, Inc. Self regulating fluid bearing high pressure rotary nozzle with balanced thrust force
DE102011006865B4 (de) * 2011-04-06 2015-07-16 Lechler Gmbh Rotierende Düsenanordnung

Also Published As

Publication number Publication date
US20200222924A1 (en) 2020-07-16
EP3439789B1 (fr) 2021-05-26
ES2883625T3 (es) 2021-12-09
PL3439789T3 (pl) 2021-09-27
DE102016106376A1 (de) 2017-10-12
DK3439789T3 (da) 2021-08-09
WO2017174622A1 (fr) 2017-10-12
US11077453B2 (en) 2021-08-03

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