EP3551335A1 - Buse d'éjection de liquide - Google Patents

Buse d'éjection de liquide

Info

Publication number
EP3551335A1
EP3551335A1 EP17828660.5A EP17828660A EP3551335A1 EP 3551335 A1 EP3551335 A1 EP 3551335A1 EP 17828660 A EP17828660 A EP 17828660A EP 3551335 A1 EP3551335 A1 EP 3551335A1
Authority
EP
European Patent Office
Prior art keywords
jet nozzle
liquid
nozzle according
housing
liquid jet
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
EP17828660.5A
Other languages
German (de)
English (en)
Other versions
EP3551335B1 (fr
Inventor
Felix Lugtenberg
Richard Pauwels
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.)
Aebi Schmidt Nederland BV
Original Assignee
Aebi Schmidt Nederland BV
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 Aebi Schmidt Nederland BV filed Critical Aebi Schmidt Nederland BV
Publication of EP3551335A1 publication Critical patent/EP3551335A1/fr
Application granted granted Critical
Publication of EP3551335B1 publication Critical patent/EP3551335B1/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
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3006—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being actuated by the pressure of the fluid to be sprayed
    • 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
    • B05B1/06—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 annular, tubular or hollow conical form
    • 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
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3013—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being a lift valve
    • 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
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3402—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to avoid or to reduce turbulencies, e.g. comprising fluid flow straightening means

Definitions

  • the present invention relates to a
  • a liquid jet nozzle comprising a housing having a liquid inlet opening and one between the
  • Beam exit opening arranged beam shaping area with a flow channel whose passage cross-section is variable.
  • Such a jet nozzle is known for example from DE 102014018130 AI. As explained in detail in that document, it comes - in contrast to spray nozzles intended purpose of the formation of fine droplets or a liquid mist - in jet nozzles on the formation of a liquid jet, which does not disintegrate over the greatest possible distance.
  • the jet nozzle known from DE 102014018130 AI has a relative to the housing and the jet molding movable, by means of a
  • the present invention has set itself the goal of providing a further improved with regard to the performance of the jet nozzle of the generic type mentioned above, in particular an improved reproducibility of the beam formation is aimed at changing liquid flow rates.
  • Beam shaping region of the flow channel is bounded radially on the outside by an elastically deformable, permanently connected at its outer periphery tightly to the housing, tapering in the flow direction funnel cone, which expands automatically to automatically change the passage cross section as a function of the local fluid pressure with increasing fluid pressure and with decreasing fluid pressure contracts radially.
  • Cross-sectional area changes depending on the operating conditions in response to these, by an elastically deformable, on its outer circumference (largest circumference) permanently connected tightly to the housing
  • the funnel membrane can - at a suitable other embodiment of the liquid jet nozzle according to a preferred development (see below) - also reliably fulfill the function of a closure with zero return liquid flow rate.
  • Inner circumference - create the outside of the jet shaped body and in this way completely close the (annular) passage cross section.
  • a separate closure device arranged upstream of the elastic funnel membrane can also be arranged.
  • this closure device in turn a
  • a flow-shaped jet body projecting into the funnel membrane is arranged in the housing.
  • Between the housing and the jet molding body is preferably an annular on at least a portion of its axial length
  • said jet shaped body preferably has a direction towards the Beam outlet opening tapered, particularly preferably substantially conical, expiring in a tip end region. This results in such a radially inwardly defined by the jet shaped body and radially outward through the funnel diaphragm annular
  • Liquid jet nozzle characterized in that the jet shaped body is arranged immovably in the housing. Spoke-like structures that
  • upstream of the funnel membrane are provided in an existing between the housing and the jet body annular space and hold the jet shaped body, can by suitable dimensioning and / or
  • the funnel diaphragm is particularly preferably immovably fixed in the housing on its outer circumference.
  • Funnel diaphragm on its outer periphery are also the above-described, in view of the excellent reproducibility of the performance behavior relevant aspects particularly pronounced.
  • the funnel membrane has a bead-shaped outer edge region. This is favorable with regard to a dense and
  • a demountable retaining ring may be provided in particular in the region of the jet outlet opening of the housing, which acts on a clamping sleeve, which in turn fixation of the
  • FIG. 2 in a perspective axial section and Fig. 3 in an orthogonal axial section, a second preferred embodiment, and Fig. 4 in turn in an axial section and
  • FIG. 5 in an exploded view of a third
  • Liquid jet nozzle comprises a housing 1, which has a liquid inlet opening 2 and a
  • Beam outlet opening 3 has.
  • the jet outlet opening 3 lie opposite one another, with respect to the throughflow direction A, so that the one formed in a beam shaping area S
  • the housing 1 comprises an approximately sleeve-shaped
  • Jet nozzle extends longitudinally to its axis
  • Beam shaped body 6 This has a substantially cylindrical main area 7 and a -
  • Base 4 of the housing 1 by means of several
  • bridging spokes 11 fixed. These extend in the axial direction over a substantial part of the main region 7 of the jet shaped body 6 and act in this way as flow guide, which ensure an axial flow through the flow channel 10.
  • annular flow channel 10 In the annular flow channel 10 is an elastically deformable funnel-shaped membrane 12 such
  • the funnel membrane 12 is connected at its outer periphery 13 close to the housing 1. For this purpose, extends along the outer circumference 13 of the funnel membrane 12 a
  • clamping ring 15 is clamped between a clamping ring 15 and a clamping sleeve 16, which are both received in the base body 4 of the housing 1 and the end face in each case one of the bead-shaped design of the edge region 14 of the funnel diaphragm 12th have adapted profiling.
  • the clamping ring 15 is supported on a step 17 of the main body 4 of the housing 1 from; acts on the clamping sleeve 16
  • the funnel membrane 12 is dimensioned to be without supply of liquid to the
  • Liquid inlet opening 2 rests with its inner periphery 19 on the outside of the shaped jet body 6, and at its conical end portion 9 (see., The illustrated in the drawing operating state). In this way, the hopper membrane 12 and beam shape body 6 form in cooperation with each other a closure device 27.
  • the beam shaping element 6 outputs an annular passage opening free, whose cross sectional area varies according to the amount of
  • the jet nozzle in particular on the inlet side
  • Embodiment has to a considerable extent constructional and functional parallels to the jet nozzle of FIG. These come by use
  • the jet shaped body 6 is constructed in two parts. It comprises (on the inflow side) a first part 37 in the form of a substantially conical inflow cap 38 which is connected to the second part 39 comprising the main area 7 and the (downstream) end area 9 by means of a plug connection 40.
  • the second part 39 of the jet shaped body 6 is in turn part of a complex one-piece component, which in addition to the jet shaped body 6 to form a
  • annular flow channel 10 with surrounding surrounding support ring 41 and a plurality of flat spokes 11 which support the second part 39 of the jet shaped body 6 on the support ring 41.
  • the flat spokes 11 are present in the form of twisted
  • Beam molding 6 support ring 41 and spokes 11 an axial orientation of the flow guide, so that no swirl flow is generated possible.
  • the funnel membrane 12 is clamped with its edge region 14 between the support ring 41 inserted into the housing 1 and the clamping sleeve 16.
  • Edge region 14 of the funnel membrane 12 adapted.
  • the main body 4 of the housing 1 of the jet nozzle has a plurality of substantially radial in the beam forming region S.
  • Openings 43 which are aligned with those of the main body 4 of the housing 1.
  • Base 4 of the housing 1 relative to each other is harmless for the said ventilation, when the base body 4 of the housing 1 and / or the clamping sleeve 16 in the region of Dividing surface an annular, an air distribution
  • FIGS. 4 and 5 of the drawing also comprises
  • Liquid jet closure nozzle a housing 1, which has a liquid inlet opening 2 and a
  • Beam outlet opening 3 has.
  • the jet outlet opening 3 again lie opposite one another, relative to the direction of flow A, so that the liquid jet is the jet nozzle in the
  • the housing 1 here comprises an approximately sleeve-shaped base body 4 and a downstream fixing sleeve 20.
  • a downstream fixing sleeve 20 By means of mutually corresponding thread 21 are the fixing sleeve 20 and the base body 4 of the housing first connected with each other. Other types of connection are possible.
  • the housing 1 is an elastically deformable
  • funnel-shaped membrane 12 arranged such that it tapers in the flow direction A.
  • Funnel diaphragm 12 is connected at its outer periphery 13 close to the housing 1. For this purpose, extends along the outer circumference 13 of the funnel membrane 12 a
  • Funnel diaphragm 12 designed in the sense stretched, as here their axial extent is significantly greater than their outer diameter. Incidentally, the wall thickness of the funnel membrane 12 decreases in the direction of flow, so that the outlet-side end region has a particularly
  • compliant, conically tapered spout 22 forms.
  • the spout 22 of the funnel diaphragm 12 protrudes a little way out of the jet outlet opening 3 of the housing 1.
  • a constriction 26 of the fixing sleeve 20 provided in the region of the jet outlet opening 3 acts in the manner of a stop for the funnel membrane 12 and limits its widening.
  • a separate closure device 27 ' is arranged upstream of the funnel membrane 12. This comprises a sleeve-like insert 28 inserted in the housing 1 in the region of the liquid inlet opening 2 and a cap-like elastic closing element 29. Without supply of liquid, the closure element 29 abuts the insert 28 with a central closure body 30 at the front and closes its central passage 31; and the cylindrical wall 32 of the closure member 29 abuts against the cylinder portion 33 of the insert 28 and closes its diagonal bores 34. Increases due to the onset of liquid supply to the
  • the closure member 29 successively lifts off the insert 28 and releases its central passage 31 and its diagonal bores 34 for increased flow.
  • Closure element 29 through its central outlet 35th and passes from here via the arranged in the base body 4 of the housing, a swirl flow generating flow guide 36 to the funnel diaphragm 12th

Landscapes

  • Nozzles (AREA)

Abstract

L'invention concerne une buse d'éjection de liquide comportant un logement (1) pourvu d'un orifice d'entrée de liquide (2) et d'un orifice de sortie (3) de jet et une zone de formation (S) de jet située entre l'orifice d'entrée de liquide (2) et l'orifice de sortie (3) de jet et pourvue d'un canal d'écoulement à section de passage variable. Dans la zone de formation (S) de jet, le canal d'écoulement est délimité radialement à l'extérieur par une membrane entonnoir (12) à déformation élastique, raccordée durablement et de manière étanche par sa périphérie extérieure au logement (1) et s'amincissant dans le sens d'écoulement (A). Ladite membrane, pour la modification automatique de la section de passage en fonction de la pression locale du liquide, s'élargit radialement lorsque la pression du liquide augmente et se contracte radialement lorsque la pression du liquide diminue.
EP17828660.5A 2016-12-09 2017-12-05 Buse d'éjection de liquide Active EP3551335B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016123994.1A DE102016123994A1 (de) 2016-12-09 2016-12-09 Flüssigkeitsstrahldüse
PCT/EP2017/081450 WO2018104266A1 (fr) 2016-12-09 2017-12-05 Buse d'éjection de liquide

Publications (2)

Publication Number Publication Date
EP3551335A1 true EP3551335A1 (fr) 2019-10-16
EP3551335B1 EP3551335B1 (fr) 2021-06-16

Family

ID=60954989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17828660.5A Active EP3551335B1 (fr) 2016-12-09 2017-12-05 Buse d'éjection de liquide

Country Status (4)

Country Link
US (1) US20190299225A1 (fr)
EP (1) EP3551335B1 (fr)
DE (1) DE102016123994A1 (fr)
WO (1) WO2018104266A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114178065A (zh) * 2021-11-22 2022-03-15 拉思丁科技(深圳)有限公司 一种高压水射流宝石喷嘴

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2916657B1 (fr) * 2007-05-30 2009-08-21 Techniplast Sarl Dispositif d'obturation d'une buse de distribution de fluide
ES2425798T3 (es) * 2011-01-25 2013-10-17 Bühler AG Válvula de máquina de colada
FR3021303A1 (fr) * 2014-05-26 2015-11-27 Techniplast Appareil de distribution de gouttes ameliore
DE102014018130A1 (de) 2014-12-09 2016-06-09 Aebi Schmidt Nederland Bv Flüssigkeitsstrahl-Verschlussdüse

Also Published As

Publication number Publication date
EP3551335B1 (fr) 2021-06-16
WO2018104266A1 (fr) 2018-06-14
US20190299225A1 (en) 2019-10-03
DE102016123994A1 (de) 2018-06-14

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