EP0683696B1 - Flachstrahldüse für ein hochdruckreinigungsgerät - Google Patents

Flachstrahldüse für ein hochdruckreinigungsgerät Download PDF

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Publication number
EP0683696B1
EP0683696B1 EP94906223A EP94906223A EP0683696B1 EP 0683696 B1 EP0683696 B1 EP 0683696B1 EP 94906223 A EP94906223 A EP 94906223A EP 94906223 A EP94906223 A EP 94906223A EP 0683696 B1 EP0683696 B1 EP 0683696B1
Authority
EP
European Patent Office
Prior art keywords
outlet opening
flat
diameter
flow channel
jet nozzle
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
EP94906223A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0683696A1 (de
Inventor
Wilhelm Eisenmann
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.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
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 Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP0683696A1 publication Critical patent/EP0683696A1/de
Application granted granted Critical
Publication of EP0683696B1 publication Critical patent/EP0683696B1/de
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
    • 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
    • B05B1/048—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 having a flow conduit with, immediately behind the outlet orifice, an elongated cross section, e.g. of oval or elliptic form, of which the major axis is perpendicular to 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
    • B05B1/02—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

Definitions

  • the invention relates to a flat jet nozzle for a high-pressure cleaning device with one outlet and one arranged concentrically and upstream thereof and into this flowing channel with a circular Cross section that is conical in the direction of flow narrowed and into one of the outlet openings upstream upstream circular cylindrical section merges, the end of which forms the outlet opening, with diametrical opposite sides of the flow channel in the Area of transition of the conical section of the flow channel symmetrical in the circular cylindrical section pocket-shaped and arranged to each other Extensions of the flow channel are arranged, the one part of the one through the conical section flowing liquid essentially transversely in the cylindrical Have section introductory deflection surface.
  • Flat fan nozzles are used to clean surfaces in some areas with a fanned out cleaning jet to be able to paint over, if possible
  • a uniform cleaning effect across the entire jet width should have and on the other hand this cleaning effect if possible over different distance ranges unfold the nozzle from the surface to be cleaned should.
  • the flat jet is transverse to the Direction of fan-out is fanned out as little as possible, also the pressure distribution inside the jet be designed so that the impact speeds of the liquid over the entire cross section if possible are constant.
  • the object of the invention is a generic flat jet nozzle to be trained so that a flat jet is created, the cleaning effects that are as uniform as possible over its cross section achieved, this cleaning effect after Possibility over a larger distance range from to cleaning surface is preserved.
  • This task is the beginning of a flat jet nozzle described type according to the invention solved in that the A circular outlet opening transverse to the direction of flow Has cross-section and that the pocket-shaped Extensions essentially over the entire diameter extend the circular cylindrical portion.
  • the opening angle of the conical section between 10 ° and 90 °, preferably between 30 ° and 50 °.
  • the deflection surface can be different in itself Experience training, it is essential that an essentially parallel to the circular cylindrical section of the flow channel incoming liquid flow is deflected and after the deflection essentially transversely into the cylindrical Section of the flow channel enters.
  • Especially Training in which the deflecting surface is advantageous is a partial spherical surface.
  • the partial spherical surface can advantageously on a partial surface of a parallel extending to the longitudinal direction of the flow channel Connect circular cylinder or truncated cone.
  • Such Extension can be produced in a simple manner by that parallel to the cylindrical section of the flow channel and laterally offset to this cylindrical or tapered holes are made in the nozzle body, which are spherical at their end.
  • the ratio of the distance the centers of the spherical deflection surfaces from each other and the diameter of the outlet opening between 0.04 and 3, in particular between 0.04 and 1.5. This Ratio is extremely important to the strength of the Fanning out. If the distance between the centers is small, the volume of the pocket-shaped depressions is small, i.e. H. the volume flow of those deflected laterally into the main jet Partial flows are lower, so that there is less fanning out he follows. So this relationship can be used control the angle of the fanning, which gets larger depending the distance between the center points is greater.
  • the ratio of the diameter the part-spherical deflection surface and the diameter the outlet opening is between 1 and 2, preferably between 1.1 and 1.6. If the diameter of the part-spherical Deflection area is smaller than the diameter the outlet opening, there is no fanning out of the Main beam, but a division into two partial beams. If, on the other hand, the diameter of the part-spherical deflection surface is more than twice the diameter of the Exhaust opening, clearly shows the deformation of the main jet after, d. H. the fanning out becomes smaller. The main beam then increasingly approaches a rotationally symmetrical Compact jet on.
  • the length of the cylindrical Section of the flow channel between the confluence the lowest point of the deflection surface and the end of the cylindrical section between 5% and 30% of the diameter the outlet opening is.
  • the cylindrical section the flow channel thus ends close to the confluence of the Deflection surfaces, so that even relatively large fanning angles of the beam are possible without the outside Beam parts through the inner wall of the cylindrical Section are hindered.
  • the length of the conical section of the flow channel up to corresponds to the transition into the circular cylindrical section preferably 5 to 20 times the diameter of the outlet opening. So it's a relatively long conical section provided the flow in the circular cylindrical section of the flow channel concentrated and accelerated.
  • the length of the circular cylindrical section corresponds to a preferred embodiment 0.1 to 1 times the diameter the outlet opening.
  • the outlet opening downstream of the Outlet opening is surrounded at a distance by a protective ring, whose inside diameter is preferably 1.5 to 10 times that Corresponds to the diameter of the outlet opening.
  • This guard ring in no way hinders the exit of the flat jet the outlet opening, but stabilizes it against air vortices etc., so that the outlet opening opposite the end face of the nozzle body is reset.
  • the length of this protective ring in the direction of flow can be 0.2 correspond to 5 times the diameter of the outlet opening.
  • nozzle body 1 and 2 show a nozzle body 1, which is essentially circular cylindrical and on one end carries a projecting ring flange 2.
  • a such a nozzle body 1 can in any way to a Flow can be connected, for example by a slid over the cylindrical part of the nozzle body 1, union ring not shown in the drawing, which is supported on the ring flange 2 and the nozzle body 1 with the interposition of a seal against a jet pipe stuck.
  • the nozzle body 1 can also be in a nozzle housing be used, for example pressed or with this glued.
  • the nozzle body can consist of metal, for example made of brass or to increase wear resistance a hard metal, it is also the use of ceramic or Plastic material possible.
  • nozzle body 1 In the nozzle body 1 is a penetrating in the longitudinal direction Flow channel 3 arranged on the inflow side a conically narrowing section 4 and a circular cylindrical section adjoining this 5 has.
  • This circular cylindrical section 5 ends in a circular outlet opening 6, which in turn into a recess 7 in circular cross section the face 8 of the nozzle body 1 occurs.
  • the deepening 7 has a larger inner diameter than the outlet opening 6, so that a step-like expansion of the flow channel enters this area, the recess 7 is surrounded by the nozzle body 1 in the form of a protective ring 9.
  • the opening angle ⁇ of the conically narrowing section 4 is between 10 ° and 90 °, preferably between 30 ° and 50 °.
  • the length y of this conically narrowing section 4 corresponds to 5 to 20 times the diameter e Outlet opening 6.
  • the length d of the circular cylindrical section 5 corresponds to 0.1 to 1 times the diameter e Outlet opening 6.
  • the two pocket-shaped extensions 10 result introduced parallel to the longitudinal axis of the flow channel Bores with a spherical end.
  • the distance a corresponds to the centers of these spherical surfaces from each other 0.04 to 3 times the diameter e of the outlet opening, in particular 0.04 to 1.5, while the diameter b the partially spherical deflection surface 1 to 2 times the diameter e corresponds to the outlet opening, preferably 1.1 to 1.6 times.
  • the deflection surface of the pocket-shaped extension opens relatively close to the outlet opening 6 in the cylindrical portion 5 of the flow channel 3, preferably the Length c of the cylindrical section 5 of the flow channel 3 between the confluence of the lowest point of the deflection surface 11 of the extension 10 and the end of the cylindrical Section 5 between 5% and 30% of the diameter of the Outlet opening 6.
  • the inner diameter f of the protective ring 9 corresponds to 1.5 up to 10 times the diameter e of the outlet opening, the length g of the protective ring 9 in the flow direction 0.2 to 5 times that Diameter e of the outlet opening.
  • the diameter e the outlet opening is, for example, 1.6 mm, so that possible dimensions due to the given conditions result for the entire nozzle described.
  • FIGS. 3 and 4 are fanned out almost exclusively in the middle plane between the two extensions 10, transversely there is only a very slight fanning out (Fig. 4), which is only at a certain distance from the Outlet opening 6 enters.
  • a flat jet is important for many areas of application, which has only a relatively small expansion angle. This can also be done by appropriately varying the distance a and optionally the diameter b of the spherical Achieve deflection surface, it can be so small, for example Fan-out angles such as 4 ° can be achieved, however a flat jet with the mentioned properties is created.
  • the nozzle described can be manufactured in use of metallic materials by machining, It is particularly favorable if the side Extensions 10 are made by drilling the with the help of a drill with a spherical tip or form cutter.
  • a nozzle body with the basic contours i.e. with the Outer contour and a flow channel with which is conical narrowing section 4 and the circular cylindrical section 5 machinable and in this basic contour side extensions 10 impress.
  • a tool can be used with a central Tip that is centered in the flow channel 3 intervenes.

Landscapes

  • Nozzles (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
EP94906223A 1993-02-09 1994-02-05 Flachstrahldüse für ein hochdruckreinigungsgerät Expired - Lifetime EP0683696B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4303762 1993-02-09
DE4303762A DE4303762A1 (de) 1993-02-09 1993-02-09 Flachstrahldüse für ein Hochdruckreinigungsgerät
PCT/EP1994/000330 WO1994017921A1 (de) 1993-02-09 1994-02-05 Flachstrahldüse für ein hochdruckreinigungsgerät

Publications (2)

Publication Number Publication Date
EP0683696A1 EP0683696A1 (de) 1995-11-29
EP0683696B1 true EP0683696B1 (de) 1998-08-12

Family

ID=6479998

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94906223A Expired - Lifetime EP0683696B1 (de) 1993-02-09 1994-02-05 Flachstrahldüse für ein hochdruckreinigungsgerät

Country Status (11)

Country Link
US (1) US5597122A (da)
EP (1) EP0683696B1 (da)
JP (1) JP2637626B2 (da)
AT (1) ATE169524T1 (da)
AU (1) AU677985B2 (da)
CA (1) CA2154697C (da)
DE (2) DE4303762A1 (da)
DK (1) DK0683696T3 (da)
FI (1) FI109883B (da)
NO (1) NO300919B1 (da)
WO (1) WO1994017921A1 (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014090333A1 (de) 2012-12-14 2014-06-19 Alfred Kärcher Gmbh & Co. Kg Flachstrahldüse

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK171017B1 (da) * 1993-11-25 1996-04-22 Kew Ind As Fladstråledyse, navnlig til en højtryksrenser
JP3494327B2 (ja) * 1995-10-03 2004-02-09 株式会社共立合金製作所 スケール除去用ノズル
DE19541174C2 (de) * 1995-11-04 1998-11-26 Spraying Systems Deutschland G Hochleistungsstrahldüse
DE19626895A1 (de) * 1996-07-04 1998-01-08 Linde Ag Flüssigkeitsverteiler für eine Stoffaustauschkolonne
DE69832956T2 (de) * 1997-08-15 2006-08-17 Fujikin Inc. Düse eines durchflussreglers mit einer druckregelung und deren herstellungsverfahren
AUPP860999A0 (en) * 1999-02-10 1999-03-04 Southern Rubber Pty Ltd Ultra high pressure liquid jet nozzle
US20060118495A1 (en) * 2004-12-08 2006-06-08 Ilia Kondratalv Nozzle for generating high-energy cavitation
US9138753B1 (en) 2010-09-02 2015-09-22 Hiroshi Takahara Spray nozzle and the application
DE102011077072B3 (de) * 2011-06-07 2012-10-04 Lechler Gmbh Vollstrahldüse
CN102535823B (zh) * 2012-01-18 2014-04-16 郑州市中源恒睿机械制造有限公司 扁形射流喷嘴及专用喷涂机
CA2884033A1 (en) * 2012-08-29 2014-03-06 Snow Logic, Inc. Modular dual vector fluid spray nozzles
CN103286090B (zh) * 2013-05-09 2016-01-13 深圳市华星光电技术有限公司 清洗光阻涂布制程中橡皮擦的装置及光阻涂布机
HUE041634T2 (hu) * 2014-10-02 2019-05-28 Kaercher Alfred Se & Co Kg Szelepelrendezés folyadékok számára
DE102015204664A1 (de) * 2015-03-16 2016-09-22 Lechler Gmbh Flachstrahldüse und Verwendung einer Flachstrahldüse
DE102015222771B3 (de) 2015-11-18 2017-05-18 Technische Universität Berlin Fluidisches Bauteil
US10350617B1 (en) * 2016-02-12 2019-07-16 Konstantin Dragan Composition of and nozzle for spraying a single-component polyurethane foam
US10702876B2 (en) * 2016-06-03 2020-07-07 Konstantin Dragan System, composition, and method for dispensing a sprayable foamable product
US10815353B1 (en) 2016-06-03 2020-10-27 Konstantin Dragan Composition of and nozzle for spraying a single-component polyurethane foam
CN114340804A (zh) * 2019-07-15 2022-04-12 喷雾系统公司 低漂移高效喷施系统

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
BE554493A (da) *
US2701412A (en) * 1952-06-14 1955-02-08 Spraying Systems Co Method of making spray nozzle orifice with plural tapered ends
US2745701A (en) * 1952-08-05 1956-05-15 Spraying Systems Co Spray nozzle orifice approach
US2985386A (en) * 1958-07-18 1961-05-23 William F Steinen Spray nozzle
US3659787A (en) * 1969-04-16 1972-05-02 Ransburg Electro Coating Corp Nozzle
DE2724173C2 (de) * 1977-05-27 1983-01-27 Speck-Kolbenpumpen-Fabrik Otto Speck Kg, 8192 Geretsried Verfahren zur Herstellung einer Hochdruck-Strahldüse
DE3414880A1 (de) * 1984-04-19 1985-10-24 Lechler Gmbh & Co Kg Flachstrahl-spruehduese, insbesondere zum verspruehen von pflanzenschutzmitteln
SU1212596A2 (ru) * 1984-06-15 1986-02-23 Научно-Исследовательский Институт Тяжелого Машиностроения Производственного Объединения "Уралмаш" Форсунка дл охлаждени изделий

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014090333A1 (de) 2012-12-14 2014-06-19 Alfred Kärcher Gmbh & Co. Kg Flachstrahldüse

Also Published As

Publication number Publication date
FI953764A0 (fi) 1995-08-08
CA2154697A1 (en) 1994-08-18
JP2637626B2 (ja) 1997-08-06
AU677985B2 (en) 1997-05-15
WO1994017921A1 (de) 1994-08-18
DK0683696T3 (da) 1999-02-08
US5597122A (en) 1997-01-28
FI109883B (fi) 2002-10-31
DE4303762A1 (de) 1994-08-11
AU6002194A (en) 1994-08-29
NO300919B1 (no) 1997-08-18
CA2154697C (en) 1998-06-23
JPH08504673A (ja) 1996-05-21
DE59406683D1 (de) 1998-09-17
NO953112D0 (no) 1995-08-08
FI953764A (fi) 1995-08-08
ATE169524T1 (de) 1998-08-15
EP0683696A1 (de) 1995-11-29
NO953112L (no) 1995-08-08

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