EP0124768A2 - Appareil de liquide à haute pression - Google Patents

Appareil de liquide à haute pression Download PDF

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Publication number
EP0124768A2
EP0124768A2 EP19840103711 EP84103711A EP0124768A2 EP 0124768 A2 EP0124768 A2 EP 0124768A2 EP 19840103711 EP19840103711 EP 19840103711 EP 84103711 A EP84103711 A EP 84103711A EP 0124768 A2 EP0124768 A2 EP 0124768A2
Authority
EP
European Patent Office
Prior art keywords
pressure
switch
valve
plant according
spray device
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
EP19840103711
Other languages
German (de)
English (en)
Other versions
EP0124768B1 (fr
EP0124768A3 (en
Inventor
Hans-Dieter Even
Bodo Missmahl
Karl-Heinz Redmers
Hubertus Rembe
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.)
Woma Apparatebau Wolfgang Maasberg and Co GmbH
Woma Apparatebau GmbH
Original Assignee
Woma Apparatebau Wolfgang Maasberg and Co GmbH
Woma Apparatebau 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 Woma Apparatebau Wolfgang Maasberg and Co GmbH, Woma Apparatebau GmbH filed Critical Woma Apparatebau Wolfgang Maasberg and Co GmbH
Publication of EP0124768A2 publication Critical patent/EP0124768A2/fr
Publication of EP0124768A3 publication Critical patent/EP0124768A3/de
Application granted granted Critical
Publication of EP0124768B1 publication Critical patent/EP0124768B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
    • B08B3/028—Spray guns
    • 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
    • B05B12/002—Manually-actuated controlling means, e.g. push buttons, levers or triggers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/01—Spray pistols, discharge devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2230/00—Other cleaning aspects applicable to all B08B range
    • B08B2230/01—Cleaning with steam
    • 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
    • Y10T137/00—Fluid handling
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2559—Self-controlled branched flow systems
    • Y10T137/2574—Bypass or relief controlled by main line fluid condition
    • Y10T137/2605—Pressure responsive
    • Y10T137/264—Electrical control

Definitions

  • the invention relates to a high-pressure liquid system according to the preamble of claim 1.
  • German utility model 74 01 818 which describes a cleaning device that works with liquid or steam and has a pistol-like dispensing device for the liquid or steam.
  • a valve In order to avoid the recoil occurring when the on and off valve provided in the dispensing device is closed, a valve must be actuated which blocks the liquid supply to the dispensing device and returns the liquid to the pump. This additional valve can be actuated from the dispenser via an electrical switch.
  • High-pressure water jet cleaning systems that are equipped with a spray gun or a rotating nozzle bar, however, require maximum pressure often considerable physical strength of the operator, so that work should only be carried out at maximum pressure for a short time.
  • maximum pressure is often only necessary in the case of very strong dirt or the like. The operator should therefore be able to work with a medium pressure, but switch briefly to maximum pressure and finally be able to rinse and flush away the dirt particles with a lowest pressure level, especially since this also entails considerable energy savings and reduced water consumption would be.
  • the object of the invention is therefore to provide a high-pressure liquid system according to the preamble of claim 1, which offers a convenient setting for the operator for the working pressure.
  • the remotely operable valve is designed as an adjustable pressure relief valve and can be remotely adjusted in pressure by electrical actuators arranged on the spraying device or in its area, with a delay device for jerk-free pressure adjustment possibly being assigned to the pressure relief valve.
  • the delay device serves as a safety measure to switch off pressure surges that could be dangerous, especially when switching to maximum pressure, and to ensure a long service life.
  • the pressure limiting valve which can be designed in particular as an overflow valve, can be pneumatically, electromotively or hydraulically adjustable, the adjusting force acting in particular on a spring device (mechanical or pneumatic) of this valve.
  • presettable pressure levels of a relatively small number can be used, between which can be selected by actuating the actuators.
  • an essentially continuous pressure adjustment for example by means of a. Stepper motor, which is actuated by a corresponding electrical actuator.
  • a throttle is suitable as a delay device, for example in the case of pneumatic or hydraulic adjustment of the pressure limiting valve.
  • an electromotive adjustment may be necessary to use a regulator to achieve a smooth pressure adjustment.
  • a spray gun, a nozzle bar or the like, as used for example for ablative cleaning on ship walls or the like, can be used as the spraying device.
  • a high-pressure pump 10 conveys water from a tank 12 to a pressure relief valve 14 designed as an overflow valve, which also serves as a safety valve here.
  • the water supplied by the high-pressure pump 10, which is under maximum pressure, is divided by the pressure relief valve 14 into two branch flows, the first of which is fed as working medium into a high-pressure hose 16, while the second flows back into the tank 12 via a return line 18.
  • an air compressor 20 delivers air into a line 22 which leads to (in the exemplary embodiment shown) three reducing valves 24, 26 and 28.
  • a pressure gauge 30 is assigned to each reducing valve 24, 26, 28.
  • the reducing valves 24, 26 28 are connected to the input of one electromagnetic switching valve 34, 36 and 38, respectively.
  • the arrangement is such that only one of the switching valves 34, 36 or 38 can be brought into the open position.
  • the outputs of all switching valves 34, 36, 38 are combined on a line 32 and lead via a throttle element 40 to the pneumatic control input of the pressure relief valve 14.
  • a line 44, 46 and 48 is assigned to each switching valve, which allow the switching valves 44, 46, 48 to be actuated by means of control pulses.
  • the lines 44, 46, 48 are connected to actuators with a blasting gun 42. (If necessary, the signal can also be transmitted wirelessly.)
  • FIG. 2 shows a gun 42 serving as a spraying device with a handle 42a and a connecting piece 42b for a nozzle pipe 42c, a high-pressure liquid connection 49 for the high-pressure hose 16 and a trigger lever 51 for the trigger switch 50.
  • the trigger lever 51 is from a protective and support bracket 43 surround.
  • a connection piece 60 for the electrical voltage and for a connecting cable to the light-emitting diodes 52, 54, 55 and the actuators 56, 58 designed as switches and the trigger switch 50 in the interior of the gun housing.
  • the trigger switch 50 which is actuated by the trigger lever 51, serves to release the printing medium. He only releases the pressure medium when the actuator 56 is pressed in once and the operational readiness is indicated by the diode 52 lighting up.
  • the control element 58 which is a pushbutton with a switching mechanism consisting of three steps, is pressed, one of the three provided pressure stages comes into operation due to the fact that the control element 58 acts on the switching valves 34, 36, 38. This is indicated at the same time by lighting up one or two light-emitting diodes 45, 55 assigned to each pressure stage.
  • a requirement for the operation of the gun 42 is a signal from the pump control system that the high-pressure pump 10 is running. If the pistol 42 is ready for operation, an actuation of the actuator 56 designed as a pushbutton on the pistol 42 can give a pulse to a toggle relay (not shown) connected downstream, so that all functions of the pistol 42 are activated. The shutdown is also carried out by a pulse to be triggered on the actuator 56.
  • the operating state of the activated pistol 42 is displayed on the light-emitting diode 52 (for example red).
  • the smallest pressure level is selected in parallel with the first command on the actuator 56. This is indicated by the lighting of the light-emitting diode 54 (for example yellow). If a higher pressure level is required, the three-step switching mechanism of the actuator 58 can be switched on in accordance with the desired pressure level by briefly giving a command on the actuator 58 with the trigger lever 51 relieved and thus with the trigger switch 50 switched off.
  • the selected pressure level is indicated by the lighting of the light-emitting diodes 54, 55, the lowest pressure level light-emitting diode 54, the medium pressure level light-emitting diode 55 and the highest pressure level light-emitting diode 54, 55 together.
  • the high-pressure water can now be switched on or off by actuating the trigger lever 51 and thus the trigger switch 50 in accordance with the preselected pressure stage and thus sprayed and / or returned to the suction side of the high-pressure pump 10. A change in the pressure levels when the trigger lever 51 is actuated is not possible. To shut down the trigger 51 is relieved and then the actuator 56 is actuated, so that the LED 52 goes out and the gun 42 is now secured against unintentional switching on of the high pressure water.

Landscapes

  • Nozzles (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP19840103711 1983-04-13 1984-04-04 Appareil de liquide à haute pression Expired EP0124768B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833313249 DE3313249A1 (de) 1983-04-13 1983-04-13 Hochdruckwasserstrahl-anlage
DE3313249 1983-04-13

Publications (3)

Publication Number Publication Date
EP0124768A2 true EP0124768A2 (fr) 1984-11-14
EP0124768A3 EP0124768A3 (en) 1986-02-19
EP0124768B1 EP0124768B1 (fr) 1988-02-24

Family

ID=6196191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840103711 Expired EP0124768B1 (fr) 1983-04-13 1984-04-04 Appareil de liquide à haute pression

Country Status (4)

Country Link
US (1) US4585168A (fr)
EP (1) EP0124768B1 (fr)
JP (1) JPS59206068A (fr)
DE (2) DE3313249A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0608796A1 (fr) * 1993-01-22 1994-08-03 WAP Reinigungssysteme GmbH & Co. Distributeur de pression/aspiration d'un appareil de nettoyage à haute pression avec valve de commande additionelle
WO2011135366A3 (fr) * 2010-04-30 2012-09-07 Biochemica Uk Ltd Nettoyage de tours de réfrigération
EP2985083A1 (fr) * 2014-08-15 2016-02-17 Nilfisk-Advance A/S Nettoyeur à haute pression avec un niveau de pression ou de débit réglable
EP3509767B1 (fr) * 2016-09-08 2023-01-25 Hammelmann GmbH Dispositif et procédé de nettoyage de la surface d'un outil

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US4932592A (en) * 1988-10-04 1990-06-12 Stripping Technologies Inc. Pressurized hose handle with reverse grip
US5216848A (en) * 1988-10-04 1993-06-08 Stripping Technologies Inc. Dual controls for an abrasive blast system
US4926589A (en) * 1988-10-04 1990-05-22 Stripping Technologies Inc. Pressurized hose handle with system controls
US4901928A (en) * 1988-10-04 1990-02-20 Stripping Technologies Inc. Pressure hose handle and system
GB2248890A (en) * 1990-08-22 1992-04-22 Shaun Waddingham Pneumatic trigger control of a pump
GB2247161A (en) * 1990-08-22 1992-02-26 Shaun Waddingham Electrical trigger control of water jet
GB2252134A (en) * 1990-08-22 1992-07-29 Shaun Waddingham Hydraulic trigger control of a pump.
GB2249591B (en) * 1990-10-01 1994-01-26 Pressure Pointing Ltd Mortar dispensing apparatus
US5279448A (en) * 1992-02-18 1994-01-18 Hanlin Michael O Installable and centralized self-contained appliance-like fluid dispensing system
US5522761A (en) * 1994-07-21 1996-06-04 Lessard; Michael A. Radial grip remote control for abrasive blast machines
US6113007A (en) * 1994-08-26 2000-09-05 Turtle Wax, Inc. Automated vehicle washing systems using concentrated detergents
US6105204A (en) * 1996-10-15 2000-08-22 Scharwat; Frank E. Surface tracking jet cleaning device
DE10029375B4 (de) 2000-06-20 2004-04-29 Hammelmann Maschinenfabrik Gmbh Steuerungsvorrichtung für eine Hochdruck-Reinigungsvorrichtung
DE10031857A1 (de) * 2000-06-30 2002-01-17 Sata Farbspritztechnik Spritzpistole
DE10131644A1 (de) * 2001-06-29 2003-01-16 Kaercher Gmbh & Co Alfred Flüssigkeitsabgabeeinrichtung für ein Hochdruckreinigungsgerät
DE10135104C1 (de) * 2001-07-19 2002-09-12 Sata Farbspritztechnik Farbspritzpistole
US7717354B1 (en) 2004-08-02 2010-05-18 Kaivac, Inc. Cleaning system including operator-wearable components
DE102005028116A1 (de) * 2005-06-13 2006-12-14 Alfred Kärcher Gmbh & Co. Kg Verfahren zum Steuern eines Reinigungsgerätes und Reinigungsgerät zur Durchführung des Verfahrens
EP1930084B1 (fr) 2006-12-05 2009-06-03 SATA GmbH & Co. KG Event pour le godet à gravité d'un pistolet à peinture
DE202007005381U1 (de) * 2007-04-12 2008-08-14 J. Wagner Gmbh Spritzpistole
US9327301B2 (en) 2008-03-12 2016-05-03 Jeffrey D. Fox Disposable spray gun cartridge
DE202008014389U1 (de) * 2008-10-29 2010-04-08 Sata Gmbh & Co. Kg Fließbecher für eine Farbspritzpistole
DE102009032399A1 (de) 2009-07-08 2011-01-13 Sata Gmbh & Co. Kg Farbspritzpistole
DE202010007355U1 (de) 2010-05-28 2011-10-20 Sata Gmbh & Co. Kg Düsenkopf für eine Spritzvorrichtung
US9333519B2 (en) 2010-12-02 2016-05-10 Sata Gmbh & Co. Kg Spray gun and accessories
ES2855001T5 (es) 2011-06-30 2024-02-23 Sata Gmbh & Co Kg Pistola pulverizadora fácil de limpiar, accesorio para ella, procedimiento de montaje y desmontaje
WO2014034041A2 (fr) * 2012-08-31 2014-03-06 Hitachi Koki Co., Ltd. Machine de nettoyage
CA155474S (en) 2013-09-27 2015-08-27 Sata Gmbh & Co Kg Spray gun
US10130962B2 (en) * 2013-10-10 2018-11-20 Briggs & Stratton Corporation Wirelessly controlled trigger start and chemical tank change-over for pressure washers
DE202013105779U1 (de) 2013-12-18 2015-03-19 Sata Gmbh & Co. Kg Luftdüsenabschluss für eine Lackierpistole
CN110560285B (zh) 2014-07-31 2021-05-18 萨塔有限两合公司 喷枪及其制造方法
CA159961S (en) 2014-07-31 2015-07-17 Sata Gmbh & Co Kg Spray gun
USD758537S1 (en) 2014-07-31 2016-06-07 Sata Gmbh & Co. Kg Paint spray gun rear portion
USD768820S1 (en) 2014-09-03 2016-10-11 Sata Gmbh & Co. Kg Paint spray gun with pattern
AU2015371732B2 (en) * 2014-12-23 2021-02-25 Alfred Kärcher Gmbh & Co. Kg High-pressure cleaning device
DE102015006484A1 (de) 2015-05-22 2016-11-24 Sata Gmbh & Co. Kg Düsenanordnung für eine Spritzpistole, insbesondere Farbspritzpistole und Spritzpistole, insbesondere Farbspritzpistole
DE102015016474A1 (de) 2015-12-21 2017-06-22 Sata Gmbh & Co. Kg Luftkappe und Düsenanordnung für eine Spritzpistole und Spritzpistole
CN205966208U (zh) 2016-08-19 2017-02-22 萨塔有限两合公司 风帽组件以及喷枪
CN205995666U (zh) 2016-08-19 2017-03-08 萨塔有限两合公司 喷枪及其扳机
DE102018118737A1 (de) 2018-08-01 2020-02-06 Sata Gmbh & Co. Kg Düse für eine Spritzpistole, Düsensatz für eine Spritzpistole, Spritzpistolen und Verfahren zur Herstellung einer Düse für eine Spritzpistole
DE102018118738A1 (de) 2018-08-01 2020-02-06 Sata Gmbh & Co. Kg Grundkörper für eine Spritzpistole, Spritzpistolen, Spritzpistolen-Set, Verfahren zur Herstellung eines Grundkörpers für eine Spritzpistole und Verfahren zum Umrüsten einer Spritzpistole
WO2018184636A2 (fr) 2018-08-01 2018-10-11 Sata Gmbh & Co. Kg Jeu de buses pour un pistolet pulvérisateur, système de pistolet pulvérisateur, procédé de réalisation d'un module de buses, procédé de sélection d'un module de buses d'un jeu de buses pour un travail de peinture, système de sélection et produit-programme informatique

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US3058668A (en) * 1960-10-07 1962-10-16 Oren B Harmes Cleaning apparatus
US3246845A (en) * 1964-06-11 1966-04-19 L & A Products Inc Controls for high velocity washing equipment
US3253790A (en) * 1964-11-19 1966-05-31 C H Heist Ohio Corp Safety control
US3375980A (en) * 1966-07-21 1968-04-02 Hydro Services Inc Water blast control system
US3383044A (en) * 1965-08-09 1968-05-14 Britt Tech Corp Hydraulically controlled pressure washer
US4047665A (en) * 1975-11-14 1977-09-13 Moynihan William N Spray control system

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US3058668A (en) * 1960-10-07 1962-10-16 Oren B Harmes Cleaning apparatus
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US3253790A (en) * 1964-11-19 1966-05-31 C H Heist Ohio Corp Safety control
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0608796A1 (fr) * 1993-01-22 1994-08-03 WAP Reinigungssysteme GmbH & Co. Distributeur de pression/aspiration d'un appareil de nettoyage à haute pression avec valve de commande additionelle
WO2011135366A3 (fr) * 2010-04-30 2012-09-07 Biochemica Uk Ltd Nettoyage de tours de réfrigération
EP2985083A1 (fr) * 2014-08-15 2016-02-17 Nilfisk-Advance A/S Nettoyeur à haute pression avec un niveau de pression ou de débit réglable
WO2016023559A1 (fr) * 2014-08-15 2016-02-18 Nilfisk A/S Nettoyeur haute pression avec niveau de pression ou de débit réglable
CN106794481A (zh) * 2014-08-15 2017-05-31 力奇有限公司 具有可调整压力或流动水平的高压清洁器
EP3509767B1 (fr) * 2016-09-08 2023-01-25 Hammelmann GmbH Dispositif et procédé de nettoyage de la surface d'un outil

Also Published As

Publication number Publication date
DE3313249A1 (de) 1984-10-25
JPS59206068A (ja) 1984-11-21
EP0124768B1 (fr) 1988-02-24
EP0124768A3 (en) 1986-02-19
US4585168A (en) 1986-04-29
DE3469413D1 (en) 1988-03-31

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