EP2387469A1 - Dispositif de pulvérisation pour liquides, son procédé de production et son utilisation - Google Patents

Dispositif de pulvérisation pour liquides, son procédé de production et son utilisation

Info

Publication number
EP2387469A1
EP2387469A1 EP10701113A EP10701113A EP2387469A1 EP 2387469 A1 EP2387469 A1 EP 2387469A1 EP 10701113 A EP10701113 A EP 10701113A EP 10701113 A EP10701113 A EP 10701113A EP 2387469 A1 EP2387469 A1 EP 2387469A1
Authority
EP
European Patent Office
Prior art keywords
plate
slots
atomizing device
atomizer
slot
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.)
Withdrawn
Application number
EP10701113A
Other languages
German (de)
English (en)
Inventor
Joerg Heyse
Martin Maier
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2387469A1 publication Critical patent/EP2387469A1/fr
Withdrawn legal-status Critical Current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
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/18—Roses; Shower heads
    • B05B1/185—Roses; Shower heads characterised by their outlet element; Mounting arrangements therefor
    • 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
    • B05B1/042—Outlets having two planes of symmetry perpendicular to each other, one of them defining the plane 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
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/28—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with integral means for shielding the discharged liquid or other fluent material, e.g. to limit area of spray; with integral means for catching drips or collecting surplus liquid or other fluent material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/494—Fluidic or fluid actuated device making

Definitions

  • the invention relates to a spraying device for liquids according to the preamble of claim 1. Furthermore, the invention comprises a method for producing a spraying device for liquids, in particular for the delivery of water in a shower, and their use.
  • a generic atomizing device for liquids is known as a washing device. It describes a shower head in which water nozzles are arranged in pairs, so that the jets of two nozzles of a pair collide and thereby dissolve into droplets.
  • the purpose of the device is to allow a pleasant showering experience at different operating pressures between 2.0 bar and 25 bar and also to reduce the water consumption compared to conventional showerheads.
  • the colliding beams are preferably arranged so that they do not overlap each other completely.
  • the known washing device has an outlet for spraying liquids with low flow rate and a conveying device for increasing a liquid pressure before spraying.
  • the sprayed liquid is mostly water.
  • the water may be mixed with soap or another cleaning or disinfecting agent.
  • the mixture can come from all nozzles. It is also possible to supply the nozzles with different liquids, for example one nozzle with water and the other with soap, or one with water and one with disinfectant.
  • the washing device can also be used in the therapeutic, cosmetics and pharmaceutical fields, for example with admixed cosmetic or medical active ingredients.
  • the conveyor or pump is therefore preferably arranged as part of the washing device locally, in the vicinity of the outlet or a shower head, ie in a bathroom or as a built-in element of a mobile or stationary shower cubicle. Due to the low water consumption, the washing device is particularly suitable for installation in means of transport such as trains, airplanes, motorhomes, or other mobile devices. Other applications are for example in showers or car washes in public baths, in dishwashers or for watering plants.
  • the washing device has a heating device for heating the water or the liquid. Thanks to the low flow rate, this heater can be made comparatively small. In particular, it can be designed as a water heater, ie without memory as in a boiler heater. The heater can be operated in particular electrically. Otherwise, the supply of hot water from a central, heated hot water tank or generally with stored hot water. Because of the low heating power required, an electric heater can be operated with existing electrical house installations. As a result, the heating can be arranged decentrally, d. H. Each shower or washing facility has its own heating.
  • the atomizing device is characterized in that at least one atomizer attachment is provided, which consists of at least one convexly curved in the beam direction atomizer plate and is inserted into the outlet.
  • at least one slot or more, directionally parallel to each other arranged slots are introduced.
  • the convexly curved atomizing plate in the jet direction is curved in a bowl-shaped and / or channel-shaped manner.
  • the slots are formed transversely and / or obliquely crossed to the channel axis extending.
  • the slots can be distributed equidistant or at different distances from each other on a convexly curved in the jet direction atomizer plate.
  • the symmetry axes pointing in the direction of flow diverge from a plurality of slots in the beam direction.
  • the slots traverse the thickness of the atomizer plate either toward the local surface normal or obliquely inclined thereto.
  • the length of the slots can be predetermined and can be the same or different within an atomizer attachment and / or an atomizer plate.
  • the slots can be arranged in the slot longitudinal direction equal to each other, with a straight row of slots, or staggered.
  • the convex beam-shaped atomizer plate along the row of slots is either not curved or has a convex curvature in the beam direction, whose radius of curvature is greater than the radius of curvature across the trough-shaped curved atomizer plate.
  • the radius of curvature is constant across the length of the row of slits across the convex beam-widened sputtering plate, or a varying radius of curvature is provided along the length of the row of slots.
  • a convexly curved in the beam direction atomizer plate is bulged rotationally symmetrical or whose curvature corresponds to the shell detail of an ellipsoid.
  • a trough-shaped atomizer plate forms a straight trough with a directional divergence between the slot axes.
  • the slots penetrate the straight channel deviating from the vertical to the surface in one place.
  • a trough-shaped atomizer plate can also form a convexly curved groove along its length as seen in the beam direction.
  • the radius of curvature of the convex bulge along the length of the groove is greater than the radius of curvature across the groove and the slots then always run in the direction of the curvature with the smaller curvature radius.
  • a pipe section is used with an outwardly curved surface area, wherein this is identical in shape to a groove shape and provided with the slots.
  • the width of the slots can widen or taper in the beam direction.
  • the size of the free slot cross-section and the shape of the slot cross-section can vary in the beam direction or remain constant.
  • the slot cross-section has an elongated format with an arbitrary cross-sectional shape, in particular with a rectangular, lenticular or oval cross-section.
  • a supplemental embodiment in particular for shower applications, provides that the atomizer plate is preceded by a further collecting plate in the jet direction and that a space is provided between the atomizer plate and the additional collecting plate, so that a cavity is formed. At least one slot in the atomizer plate associated with the recess for the passage of the fan-shaped liquid jets is introduced into this collecting plate.
  • the outer dimensions of the recess are chosen so that the lateral beam edges of each fan beam are prevented by the catch plate at the passage and the amount of liquid is collected from the beam edges on the upstream side of the catch plate.
  • the interception of the beam edges serves to hide them from the liquid jet, because the beam edges have a high beam impulse due to their thickening against the smaller fan beam lamella thickness, which otherwise causes unpleasant pressure in a shower when hitting the skin.
  • the collecting plate has an identical or similar convex shape as the atomizer plate or is flat.
  • the collecting plate of the atomizer plate is arranged at least so far away that individual fan beam fins are already disintegrated into smaller ligaments before reaching the collecting plate. Otherwise, on the free side of the catch plate, again thickened beam edges would be formed in a still existing lamination via surface tension action.
  • the collected amount of liquid is sucked from the jet edge of the collecting plate and fed to the atomizing device again.
  • the method according to the invention for producing a sputtering device for liquids, in particular for dispensing water in a shower, with an outlet on a liquid supply line for spraying liquids with low flow rate, wherein the outlet has at least two nozzles for generating liquid jets and for atomization is characterized characterized in that at least one slot is milled or ground by a disc-shaped tool in a at least one convexly curved in the beam direction atomizer plate of a Zerstäubervorsatzes and that the tool for introducing the slot is a rotationally symmetrical, rotating disc.
  • the atomizing device according to the invention can be used for liquids in the field of flushing devices for domestic and commercial applications, fire fighting, high-pressure cleaning devices, firing and burner technology as well as irrigation devices.
  • Advantageous properties are: best possible atomization quality for showering comfort, wherein the achievable droplet size can be reduced by up to a third compared with concepts known from the prior art without further pressure increase, uniform distribution or targeted variation of the sprayed liquid quantity over a given area, limitation within spraying within a predetermined spray cross-section, high impingement of the liquid jets for best cleaning effect, water savings due to finest atomization and best cleaning effect by high impact impulse.
  • a water-saving, efficiently cleansing shower spray is available through efficient, even, finely atomized spray distribution with high impact impulse.
  • a spray arm of dishwashers can be formed, so that a water saving through efficient, uniform, finely atomized and impulsive distribution results on dishes to be cleaned.
  • the major effect is the efficient asphyxiation of flames by forming liquid curtains when covering large areas.
  • High-pressure cleaning devices with inventive design clean efficiently and water-saving by uniform, finely atomized and pulse-rich distribution of the spray. Irrigation systems work water-saving and can be used specifically on spatially delimited areas.
  • Another field of application is the use of the atomizing device as a fountain attachment for garden and Zim- merspringbrunnen.
  • the spray pattern is an aesthetic appearance, in room fountains the room humidification is very efficient due to the homogeneous distribution of a finely sprayed spray.
  • a transfer of Markmale invention on the combustion and burner technology is conceivable.
  • energy-saving oil burner nozzles can be formed, which ensure a targeted, finely atomized and stoichiometric distribution of the liquid fuel.
  • a washing device for dispensing water in the sanitary area, in particular in a shower is optimized and the present invention represents a cost-effective embodiment of a shower head.
  • the various requirements for the spray to be produced are due to the inventive design, in particular by its high geometric degrees of freedom , individually and on a low cost basis. Due to the spray properties described above, the invention is advantageously applicable as a cost-producible concept for shower heads and other applications.
  • the drawing shows an embodiment of the invention. It schematically shows a sputtering apparatus:
  • Fig. 3 with the flow pattern at a slot in a section of the atomizer plate
  • Fig. 4 with the flow pattern at a slot in a section of the atomizer plate and another, upstream in the beam direction collecting plate.
  • the sputtering apparatus essentially consists of a nebulizer attachment, which rather consists of at least one sputtering plate 1 curved convexly in the direction of the jet and inserted into the outlet. In this case, at least one slot 2 or more, directionally parallel slots 2 are introduced into the atomizer plate.
  • the convexly curved in the beam direction atomizer plate 1 is trough-shaped according to FIG. 1 or cup-shaped as shown in FIG. 2 bent.
  • a slot 2 is milled or ground in a curved atomizer plate 1.
  • a lenticular cross-section is achieved with the illustrated tool 3, which also gradually tapers in the through-flow direction.
  • the corresponding flow pattern on an atomizer plate 1 is shown in FIG. 3.
  • the atomizer plate 1 is preceded by a further collecting plate 4 in the beam direction.
  • a gap is provided between the atomizer plate 1 and the additional catch plate 4, so that a cavity 5 is formed.
  • the additional collecting plate 4 has in each case at least one slot 2 in the atomizer plate 1 associated recess 6 for the passage of the fan-shaped liquid jets, wherein the outer dimensions of the recess 6 are selected so that the lateral beam edges of each fan beam prevented by the collecting plate 4 at the passage be and the amount of liquid from the jet edges on the upstream side of the collecting plate 4, so in the cavity 5, is collected.
  • This collected amount of liquid is sucked from the jet edge of the collecting plate and supplied to the atomizing device again.
  • Each slot 2 exits a fan jet or a liquid lamella.
  • the spreading of the fan beam is achieved by the narrowing in the flow direction width of the slot 2, whereby on the two opposite longitudinal sides of the slot 2 converging flow vectors are generated transversely to the length of the slot, which collide in the slot exit plane.
  • a divergent flow results downstream of the slot 2, whereby a fan beam is spread open.
  • the spreading is further assisted by the fact that the atomizer plate 1 is convexly curved in the jet direction along the length of a slot 2.
  • the atomization quality is also adjustable over that of the individual slats.
  • a smaller width of a slot 2 and a smaller radius of curvature along the length of a slot 2 lead to smaller drops in the lamella.
  • the sprayed amount can be distributed as desired in the disk pack. Any large or separate surfaces can thus be sprayed with either homogeneous or deliberately inhomogeneous spray quantity distribution.
  • the fanning angle of each fan beam is selectively adjustable by the arc length of a slot 2.
  • the spray pattern can be limited to arbitrarily contoured, small or large surfaces to be sprayed without high edge losses. In the case of shower applications, for example, the goal is to spray as little water as possible into the area near or to the shower stall wall.
  • Fan beams have a high penetration capacity as flat, flat structures. They are slowed down by the atmosphere in which they penetrate. Thus, for a given spray distance of the jet pulse is maximally maintained. The impulse density is also extremely high for cleaning applications because of the flat shape of the fan beam.

Landscapes

  • Nozzles (AREA)
  • Special Spraying Apparatus (AREA)

Abstract

L'invention concerne un dispositif de pulvérisation pour liquides, en particulier pour la distribution d'eau dans une douche, comprenant une sortie sur un conduit d'amenée de liquide, pour la pulvérisation de liquides à faible débit, la sortie présentant au moins deux buses pour la production de jets de liquide et pour la pulvérisation. L'invention a pour but d'optimiser un dispositif de lavage pour la distribution d'eau, en particulier dans une douche, et d'obtenir une forme d'exécution d'une tête de douche à un coût avantageux. Le dispositif de pulvérisation selon l'invention est caractérisé en ce qu'il est prévu un adaptateur de pulvérisation qui est constitué par au moins une plaque de pulvérisation (1) cintrée convexe dans le sens du jet, et qui est insérée dans la sortie, et en ce qu'au moins une fente (2) ou plusieurs fentes (2) disposées parallèlement entre elles sont prévues dans la plaque de pulvérisation (1). La plaque de pulvérisation (1) cintrée convexe dans le sens du jet est incurvée en forme de coque et/ou en forme de rigole.
EP10701113A 2009-01-17 2010-01-11 Dispositif de pulvérisation pour liquides, son procédé de production et son utilisation Withdrawn EP2387469A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009005026A DE102009005026A1 (de) 2009-01-17 2009-01-17 Zerstäubungsvorrichtung für Flüssigkeiten, Verfahren zu deren Herstellung und deren Verwendung
PCT/EP2010/050209 WO2010081780A1 (fr) 2009-01-17 2010-01-11 Dispositif de pulvérisation pour liquides, son procédé de production et son utilisation

Publications (1)

Publication Number Publication Date
EP2387469A1 true EP2387469A1 (fr) 2011-11-23

Family

ID=41861915

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10701113A Withdrawn EP2387469A1 (fr) 2009-01-17 2010-01-11 Dispositif de pulvérisation pour liquides, son procédé de production et son utilisation

Country Status (5)

Country Link
US (1) US20120043400A1 (fr)
EP (1) EP2387469A1 (fr)
CN (1) CN102281953A (fr)
DE (1) DE102009005026A1 (fr)
WO (1) WO2010081780A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102872991B (zh) * 2012-09-26 2015-09-09 宁波雪芸机械工贸有限公司 蒸汽洗车机刷头用的蒸汽喷条
US10335012B2 (en) * 2015-10-19 2019-07-02 Electrolux Home Products, Inc. Dishwasher spray fill
DE102017114310A1 (de) * 2017-06-28 2019-01-03 Washtec Holding Gmbh Düsenrohr mit fluidstrahlformender Düsenöffnung
FR3079723B1 (fr) * 2018-04-09 2021-12-10 Oreal Procede et systeme de traitement de la chevelure
NZ767637A (en) * 2018-05-07 2024-01-26 Phoenix Ind Pty Ltd Spray head
DE102018111609B4 (de) * 2018-05-15 2022-02-03 Miele & Cie. Kg Sprühdüse einer Geschirrspülmaschine
CN111151390A (zh) * 2020-01-22 2020-05-15 柯敏兴 一种液体出液形状控制装置
CN111889243B (zh) * 2020-07-03 2021-05-07 青岛日森机电有限公司 一种新型仿贝类喷射用洗车喷头

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US4435891A (en) * 1981-02-19 1984-03-13 Albany International Corporation Method of manufacturing a sanitary fan spray nozzle
JP3609109B2 (ja) * 1992-12-08 2005-01-12 フロー インターナショナル コーポレイション 超高圧ファンジェットノズル
US5921472A (en) * 1994-12-13 1999-07-13 Spraying Systems Co. Enhanced efficiency nozzle for use in fluidized catalytic cracking
NZ525880A (en) 2003-05-14 2005-11-25 Methven Ltd Method and apparatus for producing droplet spray
ITBS20040123A1 (it) * 2004-10-13 2005-01-13 Bossini S P A Doccia
US7380732B2 (en) * 2005-09-23 2008-06-03 Spraying Systems Co. Multiple discharge orifice spray nozzle

Non-Patent Citations (1)

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Title
See references of WO2010081780A1 *

Also Published As

Publication number Publication date
DE102009005026A1 (de) 2010-07-29
US20120043400A1 (en) 2012-02-23
CN102281953A (zh) 2011-12-14
WO2010081780A1 (fr) 2010-07-22

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