EP0577681A1 - Tuyere a fente de distribution de liquides. - Google Patents

Tuyere a fente de distribution de liquides.

Info

Publication number
EP0577681A1
EP0577681A1 EP92907516A EP92907516A EP0577681A1 EP 0577681 A1 EP0577681 A1 EP 0577681A1 EP 92907516 A EP92907516 A EP 92907516A EP 92907516 A EP92907516 A EP 92907516A EP 0577681 A1 EP0577681 A1 EP 0577681A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
support body
slot
bodies
fact
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
EP92907516A
Other languages
German (de)
English (en)
Other versions
EP0577681B1 (fr
Inventor
Herbert Huettlin
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.)
Huettlin GmbH
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0577681A1 publication Critical patent/EP0577681A1/fr
Application granted granted Critical
Publication of EP0577681B1 publication Critical patent/EP0577681B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/025—Nozzles having elongated outlets, e.g. slots, for the material to be sprayed

Definitions

  • the invention relates to a slot nozzle for dispensing liquids, with
  • a support body which has at least one supply channel for liquids
  • At least one of the outlet surfaces has a profile structure that enables liquid to escape between the outlet surfaces.
  • a slot nozzle of this type is known, one of whose nozzle bodies is a rigid plate, which is also formed by a plate. Tra ⁇ grains is screwed together and covers a groove worked into the supporting body and serving as a supply channel.
  • the second nozzle body is formed by a flexible strip, which is clamped in a further groove of the support body and in the area, m aerr. it rests on a rigid nozzle body, is provided with a large number of milled grooves and ribs that remain in between.
  • the ribs are preferably much narrower than the grooves, and their cross-section is longer in the longitudinal direction of the support body than transverse to it.
  • the nozzle outflow conditions are to be influenced in accordance with the properties of the medium to be dispensed by the slot nozzle by different dimensions of the ribs and grooves.
  • the ribs and grooves can be arranged transversely or obliquely to the longitudinal direction of the slot nozzle and can end before the actual nozzle outlet cross section, so that the partial streams of the emerging medium separated by the ribs unite behind the ribs to form a uniform film. This is intended to achieve a coherent gas or liquid curtain. Experience has shown, however, that this can only be achieved with liquids whose surface tension is low, so that the partial flows flowing through the individual grooves have a strong willingness to unite behind the ribs.
  • the invention has for its object to develop a slot nozzle for dispensing liquids in such a way that it is suitable for generating a uniform spray curtain formed by a liquid and a gas.
  • the task is based on a
  • Slotted nozzle of the type described in the opening paragraph is solved in that the exit surface of at least one of the nozzle bodies is roughened to form the profile structure, and at least one of the nozzle bodies, together with a nozzle bar, delimits a gas outlet slot which is connected to a supply channel for compressed gas which is also formed in the support body.
  • the roughened exit surface can be paired with a completely smooth exit surface. Such a pairing of a roughened with a smooth exit surface and with a gas outlet slot is particularly suitable for spraying homogeneous solutions. Roughness depths of the roughened exit surface in the order of magnitude of 0.015 to 0.250 mm have proven particularly useful.
  • the nozzle bodies are preferably held against one another with elastic pretension. This creates the possibility to clean the outlet gap from time to time with a liquid which is pressed through it with increased pressure which forces the nozzle body apart.
  • the pretension can be generated, for example, with elastic guide plates, each of which connects one of the nozzle bodies to the support body.
  • the support body itself is also easy to clean, it can be divided into two support body halves, each of which carries a nozzle body.
  • At least one nozzle strip is connected to the supporting body by an elastic guide plate.
  • a guide plate can vibrate depending on the pressure of the gas flowing along it, so that the distance between the associated
  • the nozzle bar and the adjacent nozzle body change periodically, creating a pulsating gas flow, which is desirable in some cases.
  • a particularly advantageous development of the invention consists in that a lamellar third nozzle body is arranged between two smooth nozzle bodies, which is attached to its two sides, each facing a smooth nozzle body, each have a roughened outlet surface.
  • Such a lamellar nozzle body can be produced at low cost and easily replaced.
  • the lamellar third nozzle body is expediently clamped between two halves of the support body and divides the supply channel for liquids into two halves. This creates the possibility of feeding the two halves of the supply channel with different liquids, for example with two components that react chemically with one another and therefore may only come together outside the slot nozzle.
  • the components leave the slot nozzle according to the invention separately from one another on each side of the lamella-like nozzle body and then mix as a mist, which is then deposited, for example, on a surface to be coated. In this way, e.g. Produce coatings with two-component paints, adhesives or the like with little effort.
  • the roughening of one or more exit surfaces is preferably carried out according to known methods of non-cutting deformation, for example by electrical discharge machining.
  • processes have proven to be particularly suitable in which the surface to be roughened is bombarded with small particles such as grains of sand.
  • Fig. 1 is a partially drawn as a cross section
  • FIG. 1 shows an enlarged detail from FIG. 1
  • Fig. 5 is an oblique view corresponding to FIG. 1
  • FIG. 6 shows an enlarged detail from FIG. 5.
  • the slot nozzle shown in FIGS. 1 to 4 is elongated in a straight line and symmetrical with respect to a plane vertical in FIGS. 1 and 2.
  • the slot nozzle includes an elongated support body 10 with a supply channel 12 for liquids, from which cross bores 14 lead upwards, and a supply channel 16 for compressed gas, from which oblique bores 18 lead upwards.
  • the support body 10 is designed symmetrically and divided into two identical support body halves, which are held together by screws 20 and can be easily disassembled after loosening these screws.
  • an inner guide plate 22 is fastened in a height-adjustable manner by means of screws 24 and clamping strips 26.
  • the terminal strips 26 have grooves 28, so that a compressed gas supplied through the supply channel 16 and emerging upward through the oblique bores 18 can flow upward through the terminal strips 26.
  • the two inner guide plates 22 are above the
  • a nozzle body 30 is fastened to the upper edge region of each of the inner guide plates 22 and, as shown, is elongated in a straight line, but can also be annular or otherwise curved.
  • the two nozzle bodies 30 have outlet surfaces 32 which face one another and are vertical according to FIG. 1. which together form an exit gap A in the plane of symmetry B of the slot nozzle for generating a spray curtain C.
  • One of the two exit surfaces 32 has one
  • the opposite exit surface 32 is smooth.
  • the two inner guide plates 22 are made of elastic material, preferably stainless steel sheet, and are shaped and arranged in such a way that they hold the two outlet surfaces 32 against one another under normal operating conditions with a certain prestress.
  • the surfaces of the support body 10 to which the inner guide plates 22 are attached diverge upwards.
  • the prestressing acting between the exit surfaces 32 can therefore be increased or decreased as desired by adjusting the inner guide plates 22 downwards or upwards.
  • the setting of the guide plates 22 can be read off on scales 34 (FIG. 3).
  • the supporting body 10 is enclosed in its lower region by an enveloping body 36 with a U-shaped cross section, which can be, for example, an extruded profile made of metal or plastic and has two thickened upper edge regions. At these edge regions of the enveloping body 36, a pair of middle guide plates 38 are attached, which the profile of the enveloping body 36.
  • the middle guide plates 38 also consist of elastic material, preferably stainless steel sheet, and form with their upper edges a pair of upwardly converging nozzle strips 40, between which the nozzle bodies 30 are arranged.
  • Each of the two nozzle strips 40 forms, together with the nozzle body 30 adjacent to it, a gas outlet slot D, the width of which extends over entire length is the same.
  • the width of the two gas outlet slots D is greater the further the inner guide plates 22 are placed downward, and vice versa.
  • the enveloping body 36 each has an outwardly open, arcuate groove 42, into which a correspondingly bent lower edge region, an outer guide plate 44, is inserted.
  • the two outer guide plates 44 are folded in a manner corresponding to the inner guide plates 22 and middle guide plates 38 and each have a row of holes 46 near their edge engaging in the arcuate groove 42 for upward flowing low-pressure gas and, immediately above, one projecting outwards Longitudinal rib 48.
  • a U-shaped trough 50 is latched into the two longitudinal ribs 48 and for this purpose each has a groove near its upper edges.
  • the tub 50 can be folded from sheet metal or made as an extruded profile made of metal or plastic.
  • the described components of the slot nozzle are closed at one end, which is shown on the left in FIGS. 3 and 4, by a head piece 52 and held together.
  • the head piece 52 is fastened with screws 54 to the supporting body 10 and has a connection bore 56 for the liquid to be sprayed which is connected to the supply channel 12 and a connection bore 58 for compressed gas which is connected to the supply duct 16, which preferably has a pressure of the order of magnitude 0.5 to 4.0 bar is supplied.
  • the opposite end of the nozzle arrangement is closed off by a simple plate-shaped end piece 60.
  • the tub 50 has at least one connecting piece at the bottom
  • the "slot nozzle according to FIGS. 5 and 6 differs from that shown in FIGS. 1 to 4 in that between the two nozzle bodies 30 a third nozzle body 31 is arranged, which is formed by a thin flat lamella, for example made of corrosion-resistant steel sheet.
  • the third nozzle body 31 has an exit surface 32 roughened by sandblasting on both sides.
  • the two nozzle bodies 30 each have a smooth, flat exit surface, which bears against the adjacent exit surface 32 of the third nozzle body 31 with a prestress.
  • the two nozzle bodies 30 are each formed in one piece with one half of the support body 10.
  • the third nozzle body 32 is clamped between the support body halves in such a way that it divides the supply channel 12 for liquids into two equal halves.
  • Each of these channel halves can be connected to its own liquid source.
  • Two or more pins 66 are attached to one of the support body halves and extend at right angles to the plane of symmetry of the slot nozzle to the other support body half.
  • the lamellar third nozzle body 31 is plugged onto these pins 66 and has holes for this purpose, so that it is held by the pins 66 so that it cannot be moved and is nevertheless easy to replace.

Landscapes

  • Nozzles (AREA)

Abstract

Une fente de sortie (A) qui permet de générer un rideau (C) en un brouillard de fines gouttelettes est formée par des surfaces de sortie opposées de deux corps de tuyère extérieurs (30) et d'un corps de tuyère (31) central raccordés à un corps de support (10) et mutuellement séparables. Au moins les deux surfaces de sortie (32) de liquide du corps de tuyère central (31) ont un profil à structure rendue rugueuse par sablage. Les deux corps de tuyère (30) sont situés entre deux traverses (40) raccordées au corps de support (10). Les deux corps de tuyère (30) délimitent ensemble chacun avec une traverse (40) une fente de sortie de gaz (D) qui s'étend elle aussi le long du rideau (C) en brouillard de fines gouttelettes que l'on veut générer.
EP92907516A 1991-03-27 1992-03-27 Tuyere a fente de distribution de liquides Expired - Lifetime EP0577681B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4110127 1991-03-27
DE4110127A DE4110127A1 (de) 1991-03-27 1991-03-27 Duesenbaugruppe zum verspruehen von fluessigkeiten
PCT/EP1992/000683 WO1992017280A1 (fr) 1991-03-27 1992-03-27 Tuyere a fente de distribution de liquides

Publications (2)

Publication Number Publication Date
EP0577681A1 true EP0577681A1 (fr) 1994-01-12
EP0577681B1 EP0577681B1 (fr) 1995-02-08

Family

ID=6428361

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92907516A Expired - Lifetime EP0577681B1 (fr) 1991-03-27 1992-03-27 Tuyere a fente de distribution de liquides

Country Status (7)

Country Link
US (1) US5427317A (fr)
EP (1) EP0577681B1 (fr)
JP (1) JPH06506143A (fr)
DE (2) DE4110127A1 (fr)
DK (1) DK0577681T3 (fr)
ES (1) ES2071499T3 (fr)
WO (1) WO1992017280A1 (fr)

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US5680991A (en) * 1992-07-29 1997-10-28 Truitt; Archie Arthur Air distribution system and sprayer incorporating an air distribution system
FR2695842B1 (fr) * 1992-09-18 1994-12-30 Bertin & Cie Appareil de pulvérisation linéaire d'un liquide, notamment de refroidissement.
JP3834737B2 (ja) * 1995-05-18 2006-10-18 ノードソン株式会社 液体又は加熱溶融体のスプレイ方法
JP3257340B2 (ja) * 1995-05-24 2002-02-18 松下電器産業株式会社 液体塗布方法、液体塗布装置およびスリットノズル
US5713519A (en) * 1995-07-21 1998-02-03 Minnesota Mining And Manufacturing Company Fluid spraying system
EP0847856A3 (fr) * 1996-12-10 1998-12-30 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif pour saupoudrer des feuilles
GB9712400D0 (en) * 1997-06-16 1997-08-13 Trikon Equip Ltd Shower head
DE19749072C1 (de) 1997-11-06 1999-06-10 Herbert Huettlin Mehrstoffzerstäuberdüse
US6012647A (en) * 1997-12-01 2000-01-11 3M Innovative Properties Company Apparatus and method of atomizing and vaporizing
US6056213A (en) * 1998-01-30 2000-05-02 3M Innovative Properties Company Modular system for atomizing a liquid
US6036116A (en) * 1998-04-16 2000-03-14 Coltec Industries Inc Fluid atomizing fan spray nozzle
US6076748A (en) * 1998-05-04 2000-06-20 Resch; Darrel R. Odor control atomizer utilizing ozone and water
DE10059406B4 (de) * 2000-11-30 2007-04-26 Krautzberger Gmbh Spritzvorrichtung
DE10126882C2 (de) * 2001-04-18 2003-12-11 Advanced Photonics Tech Ag Fluidstromformer
DE60232174D1 (de) * 2001-12-03 2009-06-10 Univ California Verfahren und vorrichtung zur kanalabdichtung unter verwendung einer verstopfungssicheren einführbaren einspritzvorrichtung
CN100464868C (zh) * 2003-01-24 2009-03-04 图柏特克有限公司 用于散布含有液滴的气流的方法及其用途、喷射喷嘴、燃气涡轮压缩机及其湿式清洁方法
DE10345342A1 (de) * 2003-09-19 2005-04-28 Engelhard Arzneimittel Gmbh Verfahren zur Herstellung eines lagerstabilen Extraktes aus Efeublättern, sowie ein nach diesem Verfahren hergestellter Extrakt
US8820662B2 (en) * 2005-12-22 2014-09-02 Donovan B. Yeates Nozzle and nozzle holder for an aerosol generator
CN101815619A (zh) * 2007-09-28 2010-08-25 日本宝德温株式会社 喷雾润湿器
US20100120350A1 (en) * 2008-11-09 2010-05-13 Illinois Tool Works Inc. Air knife
DE102009017453A1 (de) 2009-04-07 2010-11-11 Hüttlin, Herbert, Dr. h.c. Spaltdüse zum Versprühen einer Flüssigkeit
JP2010246670A (ja) * 2009-04-14 2010-11-04 Canon Inc 液体吐出ヘッド及び吸入装置
US8814067B2 (en) * 2011-04-28 2014-08-26 Maxum Llc Optimized air delivery apparatus
JP6035738B2 (ja) * 2011-12-27 2016-11-30 オムロンヘルスケア株式会社 ネブライザおよびネブライザキット
US10556246B2 (en) * 2012-03-28 2020-02-11 Gf Corporation Liquid ejecting device and method of liquid ejection
US10401086B2 (en) 2013-01-15 2019-09-03 Illinois Tool Works Inc. Air manifold for drying a container
FR3009687B1 (fr) * 2013-08-13 2017-05-12 Sames Tech Pulverisateur d'un produit lubrifiant et installation de lubrification comprenant ce pulverisateur
JP6320824B2 (ja) * 2014-03-31 2018-05-09 株式会社東芝 ガス供給管、およびガス処理装置
KR101817254B1 (ko) * 2016-09-23 2018-01-10 주식회사 동원파츠 가스 디스트리뷰터 및 이의 제조방법
CN107684648B (zh) * 2017-10-23 2018-12-18 南京市儿童医院 一种用于雾化吸痰护理的婴幼儿面罩系统
US11161128B2 (en) 2017-11-14 2021-11-02 General Electric Company Spray nozzle device for delivering a restorative coating through a hole in a case of a turbine engine
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Also Published As

Publication number Publication date
DE4110127C2 (fr) 1993-02-04
EP0577681B1 (fr) 1995-02-08
DE59201365D1 (de) 1995-03-23
JPH06506143A (ja) 1994-07-14
DK0577681T3 (da) 1995-05-01
DE4110127A1 (de) 1992-10-01
ES2071499T3 (es) 1995-06-16
US5427317A (en) 1995-06-27
WO1992017280A1 (fr) 1992-10-15

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