EP1842598A1 - Buse d'éjection d'un agent de grenaillage - Google Patents

Buse d'éjection d'un agent de grenaillage Download PDF

Info

Publication number
EP1842598A1
EP1842598A1 EP07004750A EP07004750A EP1842598A1 EP 1842598 A1 EP1842598 A1 EP 1842598A1 EP 07004750 A EP07004750 A EP 07004750A EP 07004750 A EP07004750 A EP 07004750A EP 1842598 A1 EP1842598 A1 EP 1842598A1
Authority
EP
European Patent Office
Prior art keywords
section
flow direction
discharge nozzle
cross
nozzle according
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
EP07004750A
Other languages
German (de)
English (en)
Other versions
EP1842598B1 (fr
Inventor
Wolfgang Holwarth
Werner Dr. Rentschler
Guido Hudak
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
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Filing date
Publication date
Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP1842598A1 publication Critical patent/EP1842598A1/fr
Application granted granted Critical
Publication of EP1842598B1 publication Critical patent/EP1842598B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/003—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material which dissolves or changes phase after the treatment, e.g. ice, CO2
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
    • B24C5/04—Nozzles 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

Definitions

  • the invention relates to a Strahlstoffaustragsdüse, in particular for dry ice blasting.
  • Strahlstoffaustragsdüsen be used in discharge devices of particle beam devices.
  • EP 0414863 B1 and from DE 2064003 Strahlstoffaustragsdüsen are known with a converging in the flow direction of the inlet portion, followed by a narrowest cross-section in the flow direction and a diverging in the flow direction follower section.
  • This Strahlstoffschaustragsdüsen be used especially for particle beam devices in which a mixture of compressed air and blasting medium is discharged.
  • soiled surfaces are cleaned.
  • dry ice particles are used as blasting agents.
  • a particularly gentle cleaning of soiled surfaces is made possible.
  • dry ice blasting equipment for cleaning is a particularly gentle method, because the surfaces of the dry ice particles from the dirt, but by the soft nature of the particles and the dissolution of the ice crystals in the atmosphere is prevented from damaging the surface immediately after hitting the surface.
  • Object of the present invention is to develop a Strahlstoffaustragsdüse of the type mentioned in such a way that it has an improved spray pattern and thus an increased surface cleaning performance.
  • a Strahlstoffaustragsdüse in particular for dry ice blasting proposed, with a converging in the flow direction inlet portion, followed in the flow direction a narrowest cross section, a cylindrical portion and a portion with increasing cross-sectional area in the flow direction, wherein the length of the cylindrical portion is at least 20 mm ,
  • the nozzle is constructed in several parts, wherein at least part of the cylindrical section and the section with increasing cross-sectional area in the flow direction are combined to form an assembly. This makes it possible to use this expensive to manufacture and therefore expensive assembly of the nozzle in various combinations.
  • first assembly at least a part of the cylindrical section and the section with increasing cross-sectional area in the flow direction are combined to form a first assembly and the converging in the flow direction inlet section with in the flow direction following narrowest cross-section and possibly diverging in the flow direction following section to a second module are.
  • the second assemblies differ from each other by the narrowest cross-section, different impact pressures are selected depending on the sensitivity of the surface to be cleaned.
  • the section adjoining the cylindrical section in the flow direction increases in width in the flow direction in the direction of flow and decreases in height.
  • the particle flow is additionally uniformed and thus an even clearer delimited cleaning field becomes uniform irradiated with particles.
  • the grooves have their common starting point on the center of the boundary line between the cylindrical portion and subsequent section.
  • the nozzle contains means to connect it with its converging inlet section to the gun or the outlet hose of a particle unit, in particular a dry ice blasting unit.
  • the first assembly with a cylindrical portion and with the portion with increasing cross-sectional area in the flow direction in the region of the cylindrical portion has a cylindrical outside shape and can be connected by means of a union nut to the second assembly.
  • the invention also relates to a particle beam device for dispensing a mixture of compressed air and dry ice, wherein the particle beam device is connectable to a source of compressed air and has a supply of particles and a metering device, with which the particles of the compressed air can be admixed, and a discharge device to which a supply line for compressed air and particles can be connected, wherein the discharge device has a Strahlstoffaustragsdüse of the aforementioned type.
  • the particles of the particle beam device are dry ice particles.
  • a Strahlstoffaustragsdüse invention is shown schematically. As evident from FIG. 2 and FIG. 5, the Strahlkaraustragsdüse invention has a converging in the flow direction inlet portion 1, followed in the flow direction successively a narrowest cross-section 2, a diverging in the flow direction following section 3, a cylindrical section 4 and a section 5 with increasing in the flow direction cross-sectional area 6.
  • the convergent inlet section 1 and the diverging secondary section 3 each have a conical inner contour.
  • the length of the cylindrical portion 4 is 80 mm, while the length of the portion 5 is 200 mm.
  • the nozzle is constructed in several parts and comprises a first assembly 7, which has the cylindrical section 4 and the section 5 with increasing cross-sectional area in the flow direction, and a second assembly 16, the converging inlet section 1, the narrowest cross-section 2 and the downstream divergent section 3 has.
  • the first assembly 7 consists of two half shells 8 and 9, which are designed identically. The identical construction allows a particularly inexpensive production of the nozzle.
  • the identical half-shells 8, 9 have with particular advantage on one side elevations or projections 23 and on symmetrically opposite side to complementary depressions or recesses 24, so that in a simple manner a precisely fitting Assembly of identical parts is possible, as shown in Figure 4 can be seen.
  • the width of the section 5 increases in the flow direction with increasing cross-sectional area, while the height of this section 5 decreases in the flow direction.
  • grooves 11 are milled on the two flat inner surfaces of the section 5 in the longitudinal direction, the radial from the center of the boundary line between cylindrical section 4 and subsequent section 5 to the nozzle exit edge 22 symmetrical to the longitudinal axis of the nozzle in the flow direction apart.
  • the Strahlstoffschaustragsdüse also has means 12 to connect them with their converging inlet portion of the gun 13 or the outlet hose 14 of a dry ice blasting machine 15.
  • a union nut 17 is used to attach the first assembly 7 to the second assembly 16. It has on its outside roughened gripping surfaces 18, so that the union nut 17 can also be attached or detached by hand.
  • the first assembly 7 is rotatably mounted on the second assembly 16 and can be changed by simply loosening and then re-tightening the nut 17 in the short term by the operator in their orientation.
  • a gun 13 it is thus possible to achieve the orientation of the flat jet at any angle to the handle, thus achieving a particularly simple and fatigue-free for the operator guiding the Strahlstoffschaustragsdüse.
  • the dry ice blasting device comprises a metering device 19 which is connectable via a feed line 20 for compressed air with a compressed air source not shown here.
  • a reservoir 21 dry ice particles are stored, which are mixed via the metering device 19 of the compressed air.
  • the mixture of compressed air and dry ice is passed via the supply line 14 to the gun 13.
  • the gun 13 has a coupling nozzle 22 for connecting the Strahlstoffaustragsdüse.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Nozzles (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Coating Apparatus (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Packages (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
EP07004750A 2006-04-03 2007-03-08 Buse d'éjection d'un agent de grenaillage Active EP1842598B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006015805A DE102006015805A1 (de) 2006-04-03 2006-04-03 Strahlmittelaustragsdüse

Publications (2)

Publication Number Publication Date
EP1842598A1 true EP1842598A1 (fr) 2007-10-10
EP1842598B1 EP1842598B1 (fr) 2010-12-22

Family

ID=38229950

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07004750A Active EP1842598B1 (fr) 2006-04-03 2007-03-08 Buse d'éjection d'un agent de grenaillage

Country Status (4)

Country Link
EP (1) EP1842598B1 (fr)
AT (1) ATE492347T1 (fr)
DE (2) DE102006015805A1 (fr)
DK (1) DK1842598T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013001205A1 (fr) * 2011-06-29 2013-01-03 L'air Liquide,Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Buse de projection de glace seche, notamment de glace carbonique
WO2023004496A1 (fr) * 2021-07-29 2023-02-02 2166568 Alberta Inc. Outil pour nettoyer un équipement alimenté électriquement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010051227A1 (de) 2010-11-12 2012-05-16 Dental Care Innovation Gmbh Düse zur Abstrahlung von flüssigen Reinigungsmitteln mit darin dispergierten abrasiven Partikeln
USD825741S1 (en) 2016-12-15 2018-08-14 Water Pik, Inc. Oral irrigator handle

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1133711A (en) 1913-03-20 1915-03-30 Benjamin L Cornelius Oil-burner tip.
DE2064003A1 (fr) 1969-12-29 1971-07-15
US4633623A (en) 1982-03-15 1987-01-06 Commissariat A L'energie Atomique Sand blasting nozzle
US5283990A (en) * 1992-11-20 1994-02-08 Church & Dwight Co., Inc. Blast nozzle with inlet flow straightener
EP0414863B1 (fr) 1989-02-08 1994-07-27 Cold Jet, Inc. Tuyere supersonique attenuant le bruit
GB2418159A (en) 2004-09-17 2006-03-22 Quill Internat Ind Plc Shaped abrasive blasting nozzle
DE102005057115A1 (de) * 2005-11-28 2007-05-31 Alfred Kärcher Gmbh & Co. Kg Trockeneisabgabegerät

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20310119U1 (de) * 2003-07-01 2004-05-13 Kipp, Jens Werner Strahlvorrichtung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1133711A (en) 1913-03-20 1915-03-30 Benjamin L Cornelius Oil-burner tip.
DE2064003A1 (fr) 1969-12-29 1971-07-15
US4633623A (en) 1982-03-15 1987-01-06 Commissariat A L'energie Atomique Sand blasting nozzle
EP0414863B1 (fr) 1989-02-08 1994-07-27 Cold Jet, Inc. Tuyere supersonique attenuant le bruit
US5283990A (en) * 1992-11-20 1994-02-08 Church & Dwight Co., Inc. Blast nozzle with inlet flow straightener
GB2418159A (en) 2004-09-17 2006-03-22 Quill Internat Ind Plc Shaped abrasive blasting nozzle
DE102005057115A1 (de) * 2005-11-28 2007-05-31 Alfred Kärcher Gmbh & Co. Kg Trockeneisabgabegerät

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013001205A1 (fr) * 2011-06-29 2013-01-03 L'air Liquide,Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Buse de projection de glace seche, notamment de glace carbonique
FR2977183A1 (fr) * 2011-06-29 2013-01-04 Air Liquide Dispositif de projection de glace seche, notamment de glace carbonique
WO2023004496A1 (fr) * 2021-07-29 2023-02-02 2166568 Alberta Inc. Outil pour nettoyer un équipement alimenté électriquement

Also Published As

Publication number Publication date
DE102006015805A1 (de) 2007-10-04
DK1842598T3 (da) 2011-04-04
ATE492347T1 (de) 2011-01-15
DE502007006000D1 (de) 2011-02-03
EP1842598B1 (fr) 2010-12-22

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