EP1054738B1 - Tete de generateur de brouillard - Google Patents

Tete de generateur de brouillard Download PDF

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Publication number
EP1054738B1
EP1054738B1 EP98966831A EP98966831A EP1054738B1 EP 1054738 B1 EP1054738 B1 EP 1054738B1 EP 98966831 A EP98966831 A EP 98966831A EP 98966831 A EP98966831 A EP 98966831A EP 1054738 B1 EP1054738 B1 EP 1054738B1
Authority
EP
European Patent Office
Prior art keywords
mist
liquid
head according
gas
generating head
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
EP98966831A
Other languages
German (de)
English (en)
Other versions
EP1054738A1 (fr
Inventor
Hans Platsch
Walter Klaschka
Albert Kiessling
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.)
Klaschka GmbH and Co
Original Assignee
Klaschka GmbH and Co
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 Klaschka GmbH and Co filed Critical Klaschka GmbH and Co
Publication of EP1054738A1 publication Critical patent/EP1054738A1/fr
Application granted granted Critical
Publication of EP1054738B1 publication Critical patent/EP1054738B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0207—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the work being an elongated body, e.g. wire or pipe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B05B16/90—Spray booths comprising conveying means for moving objects or other work to be sprayed in and out of the booth, e.g. through the booth
    • B05B16/95—Spray booths comprising conveying means for moving objects or other work to be sprayed in and out of the booth, e.g. through the booth the objects or other work to be sprayed lying on, or being held above the conveying means, i.e. not hanging from the conveying means
    • 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
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0441—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
    • B05B7/0466—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber with means for deflecting the central liquid flow towards the peripheral gas flow
    • 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
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
    • 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
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/02—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery
    • B05B12/06—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery for effecting pulsating flow

Definitions

  • the invention relates to a fog generator head according to the Preamble of claim 1.
  • a fog generator head is known for example from WO-A-92/17279.
  • Such known fog generator heads are found e.g. in devices Use with which the moisture content of Room air is increased, or also in industrial plants, in which e.g. on the surface of a workpiece Oil film or a layer of adjacent oil droplets applied becomes.
  • the well-known fog generators have in common that it It is difficult to mist even from highly viscous liquids to manufacture, because of that from the liquid nozzle dispensed liquid stream striking gas jet can then no longer separate the liquid jet Divide droplets as the cohesion in the liquid jet is too strong. You can also in the known Fog generators do not overwhelm the amount of fog generated set small values as the atomization of the liquid through a gas jet a certain minimum throughput of liquid through the liquid nozzle and of gas through the gas nozzle.
  • a fog generator head is therefore intended by the present invention according to the preamble of claim 1 be trained that even small amounts of one Highly viscous liquid can be atomized reliably.
  • valve body associated with the liquid nozzle forcibly fed liquid into small packages divided. These small volumes of liquid that released each time the valve body is opened are then further torn apart by the gas flow, so that you get a fine fog overall.
  • the geometry specified in claim 5 has the advantage that on the one hand those emitted by the liquid nozzle Liquid droplets reach the gas jet and through run through it, on the other hand, through the gas jet a certain concentration and spatial cohesion of the Mist occurs, and further that the mist generation as a whole symmetrical and uniform.
  • the assigned to the liquid nozzle Valve body also acts as a deflector, which the droplets of liquid discharged from the liquid nozzle distributed in the circumferential direction.
  • a fog generator head In a fog generator head according to claim 7 can the stream of droplets emitted by the liquid nozzle expand a little before the atomization by the Gas flow takes place. This gives you better targets for the gas flow.
  • the development of the invention according to claim 9 is both in terms of compact construction of the fog head generator as well as in terms of uniformity of the generated fog is an advantage.
  • the cross-sectional shape of the Increase or decrease fog current in a simple way.
  • the frame is a total of 10 with 12 designated oiling station.
  • a housing 14 is of a total of 18 Oiling device shown pulled down. It comprises an upper housing part 16a and a lower one Housing part 16b, which together has an inlet slot 20th and define an outlet slot 22 through which to oiling sheets (not shown) can pass through.
  • the oiling station 12 essentially symmetrical to the conveying plane of the sheets.
  • functionally equivalent components which are above or below the funding level Suffixes a and b differentiated.
  • the oiling device 18 includes the conveying direction the sheets transverse profiles 26, 28. Of the profiles 26 is one (26a) above, the other (26b) below Conveyor path of the sheets is arranged. About an obtuse angle Bracket 30 is one set each upper Mist generator heads 34a or lower mist generator heads 34b in the direction transverse to the sheet conveying direction attached uniformly to the profile 26a or 26b.
  • Support rollers 38 carry the sheets to be oiled inside the housing 14.
  • baffles 44 and 46 are arranged, which are spaced from the housing walls and at the lower end one at an angle upwards and inwards have extending end portion 48 or 50. Between the baffles 44, 46 and the vertical walls of the Housing parts 16a, 16b each have a gap 52, 54, of the lines 56, 58 with a suction channel 60 in There is a connection to which one in the drawing is not reproduced suction fan works.
  • the vertical walls of the housing parts 16a, 16b have at the lower end each end sections 62, 64, in pairs one inlet funnel or one outlet funnel for the sheet metal to be oiled.
  • the fog generator heads 34 each have a housing 66 in which a central multiply stepped bore 68 is provided.
  • An injection unit 70 is in the stepped bore 68 used as for fuel injection Diesel engines are used.
  • the injection unit 70 has a housing 72 which on its outside is graduated several times and in its lower end face has a liquid nozzle 74.
  • the liquid nozzle 74 also gives a frustoconical outlet Valve seat 76, which works with a valve body 78, which is carried by a valve stem 80 is.
  • the valve stem 80 extends in the drawing up through the housing 72 and is at the top End connected to the armature of an electromagnet 82, which is excited by a control unit 84.
  • An air nozzle disk 96 is by means of a threaded ring 98 screwed tightly against the lower end face of the housing 66.
  • the air nozzle disc 96 has in its overhead Boundary surface a truncated cone-shaped depression 100, which the lower end of the housing 72 under play surrounds and as a funnel to a truncated cone Nozzle opening 102 leads into the one below free end face of the air nozzle disk 96 opens out.
  • FIG. 4 branches off from the inlet 90 Side channel 104, in which a not with reference numerals provided frustoconical valve seat is the one with a conical tip Needle valve body 106 cooperates, which in a thread of the housing 66 runs and on a knurled End section 108 can be operated.
  • a not with reference numerals provided frustoconical valve seat is the one with a conical tip Needle valve body 106 cooperates, which in a thread of the housing 66 runs and on a knurled End section 108 can be operated.
  • an axial Control air duct 110 from that to another annulus 112 leads between the underside of the housing 66, the top of the air nozzle disk 96 and the inner surface of the threaded ring 98.
  • Control air duct 124 is applied to the annular space 112 of the junction of the control air duct 110 opens diametrically opposite.
  • a liquid feed channel 130 of the injection unit 70 is connected to a distribution line 132 in which the liquid to be atomized via a pressure regulator 134 (Oil) under a pressure of 2 to 8 bar, preferably about 4 to 5 bar.
  • the pressure regulator 94 in the Air line 92 set pressure is about 2 to 4 bar.
  • the pressure values used in each specific case depend on the type, especially the viscosity the liquid to be atomized and the size of the desired droplets and the desired speed for the stream of fog.
  • control unit 84 turns the electromagnet 82 with the set frequency and the each set duty cycle excited. With everyone Excitation of the electromagnet becomes a given small one Volume of liquid through the liquid nozzle 74 dispensed, at the same time undergoing pre-atomization.
  • About the feed current of the electromagnet 130 can thus be controlled 86 forth the cross-sectional shape of the mist flow in simple Control wise.

Landscapes

  • Nozzles (AREA)

Abstract

L'invention concerne une tête de générateur de brouillard (34) présentant une unité d'injection (70) du type de celles qui sont utilisées dans les moteurs diesel. Cette unité d'injection vaporise, à une fréquence élevée, le liquide à diffuser sous forme de brouillard. Le flux de gouttelettes de liquide produit par l'unité d'injection (70) est entouré par une buse à gaz (102) qui le divise davantage, ladite buse entourant l'ouverture de sortie de l'unité d'injection et étant située légèrement en aval de cette dernière.

Claims (13)

  1. Tête de générateur de brouillard destinée à générer un brouillard formé par de fines gouttelettes de liquide réparties dans un flux de gaz pour produire un film de liquide ou une couche de gouttelettes de liquide voisines sur la surface d'une pièce, comprenant un boítier (66, 96) dans lequel sont réalisés un canal d'admission de liquide (130) et un canal d'admission de gaz (90), et comprenant un dispositif de vaporisation, qui communique avec le canal d'admission de liquide (130) et le canal d'admission de gaz (90) et qui comporte une buse de liquide (74) reliée au canal d'admission de liquide (130) mis sous pression, le flux de liquide à travers la buse de liquide (74) pouvant être commandé par une soupape (76, 78) actionnée par intermittence, le boítier (66, 96) portant une buse de gaz (102), qui est reliée au canal d'admission de gaz (90), et les directivités de la buse de liquide (74) et de la buse de gaz (102) se chevauchant, caractérisée en ce que le corps (78) de la soupape (76, 78) travaille avec une fréquence d'environ 10 à environ 100 Hz.
  2. Tête de générateur de brouillard selon la revendication 1, caractérisée en ce que le corps de soupape (78) travaille avec une fréquence de 60 Hz environ.
  3. Tête de générateur de brouillard selon la revendication 1 ou 2, caractérisée en ce que la pression dans le canal d'admission de liquide (130) se situe entre 2 et 8 bars, de préférence entre 4 et 5 bars.
  4. Tête de générateur de brouillard selon l'une quelconque des revendications 1 à 3, caractérisée en ce que la pression dans le canal d'admission de gaz (92) se situe entre 2 et 4 bars.
  5. Tête de générateur de brouillard selon l'une quelconque des revendications 1 à 4, caractérisée en ce que la buse de gaz (102) entoure dans le sens radial la buse de liquide (74).
  6. Tête de générateur de brouillard selon l'une quelconque des revendications 1 à 5, caractérisée en ce que le corps de soupape (78) est disposé axialement en dehors de la buse de liquide (74).
  7. Tête de générateur de brouillard selon l'une quelconque des revendications 1 à 6, caractérisée en ce que la buse de gaz (102) est disposée en aval de la buse de liquide (74), par référence au sens d'écoulement.
  8. Tête de pulvérisateur selon la revendication 7, caractérisée en ce que la buse de gaz (102) est munie, du côté d'admission, d'une trémie collectrice (100).
  9. Tête de générateur de brouillard selon l'une quelconque des revendications 1 à 8, caractérisée en ce que l'unité de buse d'injection de carburant (70), comportant une surface extérieure cylindrique, est insérée dans une forure (68) cylindrique d'une partie principale de boítier (66), moyennant quoi, dans une partie voisine d'un orifice de sortie libre de la forure (68), elle est située radialement vers l'intérieur à distance de la face intérieure de la forure, de manière à former un espace annulaire (88) en liaison avec le canal d'admission de gaz (90).
  10. Tête de générateur de brouillard selon l'une quelconque des revendications 1 à 9, caractérisée en ce qu'une face frontale libre du boítier (66, 96), dans laquelle débouche la buse de gaz (102), comporte au moins deux buses de gaz de commande (126, 128) réparties avec la même forme dans le sens périphérique.
  11. Tête de générateur de brouillard selon la revendication 10, caractérisée par un dispositif (106) destiné à réguler le flux du gaz de commande.
  12. Tête de générateur de brouillard selon la revendication 11, caractérisée en ce que le dispositif destiné à réguler le flux du gaz de commande comporte une soupape à pointeau (106).
  13. Tête de générateur de brouillard selon la revendication 11 ou 12, caractérisée en ce que le dispositif (106) destiné à réguler le flux du gaz de commande peut être actionné par un servomoteur (130).
EP98966831A 1998-02-16 1998-12-17 Tete de generateur de brouillard Expired - Lifetime EP1054738B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19806254A DE19806254A1 (de) 1998-02-16 1998-02-16 Nebelgeneratorkopf
DE19806254 1998-02-16
PCT/EP1998/008311 WO1999041016A1 (fr) 1998-02-16 1998-12-17 Tete de generateur de brouillard

Publications (2)

Publication Number Publication Date
EP1054738A1 EP1054738A1 (fr) 2000-11-29
EP1054738B1 true EP1054738B1 (fr) 2003-10-08

Family

ID=7857838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98966831A Expired - Lifetime EP1054738B1 (fr) 1998-02-16 1998-12-17 Tete de generateur de brouillard

Country Status (4)

Country Link
US (1) US6663020B1 (fr)
EP (1) EP1054738B1 (fr)
DE (2) DE19806254A1 (fr)
WO (1) WO1999041016A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10031852B4 (de) * 2000-07-05 2006-08-31 Klaschka Gmbh & Co Einrichtung zum Besprühen von Werkstücken
JP2007326407A (ja) * 2006-06-06 2007-12-20 Toyota Motor Corp 湿度制御装置
DE102013006331A1 (de) * 2013-04-12 2014-10-16 Technotrans Ag Werkstückbeöler und Verfahren zum Beölen von Werkstücken
CN112756137B (zh) * 2020-11-06 2021-09-28 浙江鸿业阀门制造有限公司 一种阀门自动化加工设备

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB577357A (en) * 1942-10-31 1946-05-15 Eccoverken Ab Method of spray-coating surfaces and a spraying device for the purpose
US4504013A (en) * 1982-08-23 1985-03-12 Spraco, Inc. Apparatus for discharging two commingled fluids
US4676216A (en) * 1984-10-05 1987-06-30 Kabushiki Kaisha Toyota Chuo Kenkyusho Injection nozzle
US4836453A (en) * 1988-02-22 1989-06-06 Outboard Marine Corporation Fuel injector with continuous air flow
US4957783A (en) * 1988-10-05 1990-09-18 Nordson Corporation Method and apparatus for dispensing droplets of molten thermoplastic adhesive
DE3834674A1 (de) * 1988-10-12 1990-04-19 Bernhard Bruene Zerstaeubungsduese fuer farbstoffe mit unterschiedliche pigmenten
DE4005734A1 (de) * 1990-02-23 1991-08-29 Bosch Gmbh Robert Vorrichtung zur einspritzung eines brennstoff-gas-gemisches
CA2039086A1 (fr) * 1991-03-26 1992-09-27 Thomas Barty Buse pour pistolet de pulverisation
CZ283752B6 (cs) * 1992-10-13 1998-06-17 Alan Patrick Casey Zařízení pro směšování plynu a tekutiny
DE4315385A1 (de) 1993-05-08 1994-11-10 Bayer Ag Verfahren zur Entstickung von heißen Rauchgasen

Also Published As

Publication number Publication date
WO1999041016A1 (fr) 1999-08-19
DE19806254A1 (de) 1999-08-19
EP1054738A1 (fr) 2000-11-29
DE59809885D1 (de) 2003-11-13
US6663020B1 (en) 2003-12-16

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