EP0850727A2 - Strahlpistole für die Nassstrahlung - Google Patents
Strahlpistole für die Nassstrahlung Download PDFInfo
- Publication number
- EP0850727A2 EP0850727A2 EP97123037A EP97123037A EP0850727A2 EP 0850727 A2 EP0850727 A2 EP 0850727A2 EP 97123037 A EP97123037 A EP 97123037A EP 97123037 A EP97123037 A EP 97123037A EP 0850727 A2 EP0850727 A2 EP 0850727A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid
- blasting
- jet
- nozzle
- gas
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0084—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a mixture of liquid and gas
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
- B24C7/0076—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier the blasting medium being a liquid stream
Definitions
- the present invention relates to a blasting gun according to the preamble of claim 1.
- the object of the present invention is to avoid these disadvantages and the invention accordingly shows a blasting gun, which can be used especially in the context of a plant, as is the subject of DE 196 23 024.1, so that the present Invention as the formation of an essential part of the older Invention can be seen.
- a blasting hose is led to the center piece and with one Connection clamp held on the inlet pipe.
- the inlet pipe is at the junction with the blasting hose with a bead trained to prevent it from slipping.
- the inlet pipe is provided with a thread in the middle part that connects to the centerpiece.
- the center piece with outlet nozzle and Pick-up tube has two internal thread points for connection with the nozzle assembly, the connection also with Quick closures is possible.
- the outlet nozzle has a nozzle shape, how it will be described.
- the water jet nozzle can basically be replaced as desired if it only gives the desired rinsing effect.
- Switching valve is a ball needle or slide valve possible. With the basic equipment of the valve, the water is in the Center piece of the jet nozzle unit initiated and the way to Rinsing pipe released. The holes in the flushing nozzles are relative large ⁇ so that the pressure drops due to the increased water passage.
- a pressure difference switch switches the boiler system off and only the water pump is running. Is a high pressure cleaning with the gun is desired, the air supply is through a ball valve Boiler system shut off and the pressure at the pump increased.
- a needle valve can only be used to open or close the water supply serve or also by an additional pressure difference switch start the high pressure pump.
- the boiler pump control is done by a proximity switch without Touch switches or through a micro pressure switch that coupled the boiler system as well as high pressure pump in or out Operation continues. There is also the possibility of depending to switch the pump and boiler system separately from the needle valve. Since the trigger lever the needle valve and the proximity or If the pressure switch is actuated, the pump and boiler system become the same Time switched.
- the necessary lines are connected to the Cables of the control block together in a cable strand Control unit led into the system.
- the control block is one encapsulated waterproof control unit that regulates the Air pressure and the amount of abrasive via a control line Facility enables.
- the more or less regulation can by individual switches or push buttons as well as toggle switches respectively.
- the switching point can be on the left and right of the Gun be arranged or lie on one side.
- the switching point (s) is (are) protected from damage or unwanted by a sliding hinged or sash cover Switch protected.
- the within the vortex jet gun according to the invention trained water strand results from Fig. 2.
- the with the reference numeral 1 and 2 marked water supply can be as shown or through a flexible hose take place, which led to the connector 3 is.
- Numeral 4 is a conventional needle valve marked from the high pressure water technology.
- the Reference number 5 denotes a connecting piece.
- the Reference numerals 5 and 6 denote intermediate lines that can be replaced by flexible hose lines.
- the reference numerals 8 to 17 identify a changeover valve with a ball 16. By turning the axis 12 the ball 16 raised or lowered and optionally gives the Passage to the swirl nozzle (in Fig. 1 "outlet nozzle") or the flushing pipe (in Fig.1 "water jet nozzle”) free or blocks him.
- the valve can be a needle valve with the same function be.
- the reference symbol 18 denotes an end pipe.
- the Reference number 19 denotes a screw-in jet nozzle with the desired spray pattern, for example a point flat
- the vortex nozzle preferably provided for the invention results from Fig. 3 with the partial figures 3a to 3d, of 3a a perspective view, FIG. 3b a Show side view.
- the reference number 3 denotes a screwable point nozzle with continuous thread for Screw connection or with O-ring for quick connection.
- the reference number 4 denotes a welded threaded tube for the nozzle function.
- the reference number 5 denotes a centerpiece with two internal thread points, which is essentially wear-free.
- the reference number 7 indicates an outlet nozzle with training according to the invention as a mixing chamber part insert, which is a wearing part is.
- the blasting gun works via a remote control cable that goes into the Supply line is integrated to feed the components Gas (generally air), blasting media (granules) and Regulate liquid (generally water).
- Gas generally air
- blasting media granules
- Regulate liquid generally water
- the control block acts on the changeover valve around this to put in one of three positions. In one of these End positions, all valve outlets are blocked, it finds no liquid application. Dry comes out of the outlet nozzle Blasting agent-gas mixture, unless the supply this mixture to the blasting gun by means of the control block is also blocked. In one of the other two of the three end positions of the changeover valve the liquid supply to the water jet nozzle to get out of this to emerge as a washing or rinsing jet.
- the liquid becomes the other two of the three end positions fed to the mixing chamber integrated in the outlet nozzle, in which the mixture used for spraying Gas, abrasive and liquid is processed.
- the type of admixture tangential to the flow direction of the abrasive gas mixture is the Inlet pipe for the blasting agent-gas mixture through the central piece passed through to something from the jet nozzle housing to protrude into the enclosed mixing chamber.
- the inlet pipe and the concentrically surrounding central part there is an annular space of small width, in the oblique that of the changeover valve in its corresponding position liquid inlet port opens in such a way that the liquid in the longitudinal direction of the annulus with an axial directional component and with a circumferential directional component to be led.
- the hollow liquid jet which is subject to swirl, becomes the axially flowing abrasive gas mixture assigned, surrounds it like a coat and tears it in Limits in the circumferential direction (in addition to the axial movement) with, so that the mixture of abrasive, gas and liquid does not impact vertically on a surface to be cleaned, but moved across the surface as a high-energy film becomes efficient and gentle on the dirt from of the surface.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
Description
- Fig. 1
- die Gesamtheit der Strahlpistole,
- Fig. 2
- den Wasserstrang der Strahlpistole gemäß Fig. 1 und
- Fig. 3
- eine bevorzugte Wirbeldüse für die Strahlpistole gemäß Fig. 1.
- Die Zuführung
- des Granulat-Luftgemisches in die Wirbeldüse,
- die Zuführung
- des Wassers über ein Nadelventil zum Umschaltventil und entweder in die Wirbeldüse oder in das Nachspühlrohr und
- die Zuführung
- einer 12 V Leitung zum Steuerblock zur Fernsteuerung und zur Bestimmung des Förderluftdruckes und der Strahlmittelmenge, die Ein- Aus- Schaltung vom Kesseldruck für die Förderluft, sowie zur Steuerung einer pneumatischen Wasserhochdruckpumpe.
Claims (1)
- Strahlpistole für die Naßstrahlung mit Zuführung eines Strahlmittel-Gasgemisches als einer Strahlkomponenten und separater Zuführung von Flüssigkeit als anderer Strahlkomponenten in die Strahlpistole, um nach Zuordnung beider Komponenten zueinander als Sprühstrahl zum Einsatz zu kommen, gekennzeichnet durch einen in die Strahlpistole integrierten, manuell zu betätigenden Steuerblock, der einerseits die Komponentenzufuhr zu der Strahlpistole regelt, andererseits auf ein Umschaltventil einwirkt, um mittels dieses Umschaltventils entweder in dessen einen Endstellung die Flüssigkeit in eine in die Auslaßdüse für Strahlgut, Gas und Flüssigkeit integrierte Mischkammer gelangen zu lassen, worin deren Zumischung zum Granulat-Gasgemisch und die Aufbereitung als Arbeitsstrahl aus Gas, Flüssigkeit und Granulat in der Weise erfolgt, daß die Zumischung der Flüssigkeit zum Granulat-Gasgemisch tangential zur Strömungsrichtung des Granulat-Gasgemisches erfolgt, sodaß der Arbeitsstrahl beim Austritt aus der Düse sowohl eine axiale Strömungskomponente als auch eine Rotationskomponente um seine Strömungslängsachse hat, oder mittels des Umschaltventiles in dessen anderen Endstellung die Flüssigkeit direkt in eine Flüssigkeitsstrahldüse gelangen zu lassen, mittels der der Flüssigkeitsstrahl ohne Gas- und Granulatkomponente zum Einsatz kommt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19654779A DE19654779A1 (de) | 1996-12-31 | 1996-12-31 | Strahlpistole für die Naßstrahlung |
DE19654779 | 1996-12-31 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0850727A2 true EP0850727A2 (de) | 1998-07-01 |
EP0850727A3 EP0850727A3 (de) | 1998-11-11 |
EP0850727B1 EP0850727B1 (de) | 2002-11-27 |
Family
ID=7816437
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97123037A Expired - Lifetime EP0850727B1 (de) | 1996-12-31 | 1997-12-31 | Strahlpistole für die Nassstrahlung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0850727B1 (de) |
AT (1) | ATE228417T1 (de) |
DE (2) | DE19654779A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005057115A1 (de) * | 2005-11-28 | 2007-05-31 | Alfred Kärcher Gmbh & Co. Kg | Trockeneisabgabegerät |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3858358A (en) * | 1973-01-02 | 1975-01-07 | American Aero Ind | High pressure liquid and abrasive cleaning apparatus |
DE8801677U1 (de) * | 1988-02-10 | 1988-05-11 | Bauer, Josef, 2000 Hamburg | Naßstrahlvorrichtung |
US4821467A (en) * | 1986-06-06 | 1989-04-18 | Whitemetal Inc. | Control system for liquid propelled abrasive cleaning |
US5024029A (en) * | 1988-10-04 | 1991-06-18 | Stripping Technologies Inc. | Abrasive media valve system |
WO1994027785A1 (en) * | 1993-05-26 | 1994-12-08 | Carolina Equipment And Supply Company, Inc. | Method and apparatus for cleaning with high pressure liquids at low flow rates |
FR2709257A1 (fr) * | 1993-08-23 | 1995-03-03 | Viel Jean Pierre | Procédé de nettoyage de bâtiment par très basse pression. |
DE29607056U1 (de) * | 1996-04-18 | 1996-07-18 | Gries, Josef, 82008 Unterhaching | Vorrichtung zur Versorgung einer Strahlpistole mit Arbeitsmedien |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3828478A (en) * | 1973-06-25 | 1974-08-13 | E Bemis | Fluid-jet-abrasive device and system |
US4057940A (en) * | 1976-12-02 | 1977-11-15 | Otto Wemmer | Control for sand blasting nozzle |
DE8327903U1 (de) * | 1983-09-29 | 1984-03-22 | Keizers, geb. Kalle, Sigrid, 4280 Borken | Strahlrohr fuer einen hochdruckstrahler |
US5216848A (en) * | 1988-10-04 | 1993-06-08 | Stripping Technologies Inc. | Dual controls for an abrasive blast system |
-
1996
- 1996-12-31 DE DE19654779A patent/DE19654779A1/de not_active Withdrawn
-
1997
- 1997-12-31 AT AT97123037T patent/ATE228417T1/de not_active IP Right Cessation
- 1997-12-31 EP EP97123037A patent/EP0850727B1/de not_active Expired - Lifetime
- 1997-12-31 DE DE59708818T patent/DE59708818D1/de not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3858358A (en) * | 1973-01-02 | 1975-01-07 | American Aero Ind | High pressure liquid and abrasive cleaning apparatus |
US4821467A (en) * | 1986-06-06 | 1989-04-18 | Whitemetal Inc. | Control system for liquid propelled abrasive cleaning |
DE8801677U1 (de) * | 1988-02-10 | 1988-05-11 | Bauer, Josef, 2000 Hamburg | Naßstrahlvorrichtung |
US5024029A (en) * | 1988-10-04 | 1991-06-18 | Stripping Technologies Inc. | Abrasive media valve system |
WO1994027785A1 (en) * | 1993-05-26 | 1994-12-08 | Carolina Equipment And Supply Company, Inc. | Method and apparatus for cleaning with high pressure liquids at low flow rates |
FR2709257A1 (fr) * | 1993-08-23 | 1995-03-03 | Viel Jean Pierre | Procédé de nettoyage de bâtiment par très basse pression. |
DE29607056U1 (de) * | 1996-04-18 | 1996-07-18 | Gries, Josef, 82008 Unterhaching | Vorrichtung zur Versorgung einer Strahlpistole mit Arbeitsmedien |
Also Published As
Publication number | Publication date |
---|---|
EP0850727A3 (de) | 1998-11-11 |
DE19654779A1 (de) | 1998-07-02 |
ATE228417T1 (de) | 2002-12-15 |
EP0850727B1 (de) | 2002-11-27 |
DE59708818D1 (de) | 2003-01-09 |
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