EP1862229B1 - Cleaning device - Google Patents

Cleaning device Download PDF

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Publication number
EP1862229B1
EP1862229B1 EP07010477A EP07010477A EP1862229B1 EP 1862229 B1 EP1862229 B1 EP 1862229B1 EP 07010477 A EP07010477 A EP 07010477A EP 07010477 A EP07010477 A EP 07010477A EP 1862229 B1 EP1862229 B1 EP 1862229B1
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EP
European Patent Office
Prior art keywords
pressure
cleaning device
pipe
discharging
heater
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.)
Not-in-force
Application number
EP07010477A
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German (de)
French (fr)
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EP1862229A1 (en
Inventor
Helmut Barbisch
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.)
Ertl Reinigungstechnik GmbH
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Ertl Reinigungstechnik GmbH
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Publication of EP1862229A1 publication Critical patent/EP1862229A1/en
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    • 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
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
    • B08B2203/007—Heating the liquid

Definitions

  • the invention relates to a mobile cleaning device, in particular high-pressure cleaning device, with a water tank, a pump, at least one heater for heating the water and a discharge device for the water, wherein the cleaning device is designed for selectively providing and discharging high-pressure hot water or dry steam, in accordance with the introductory part of claim 1.
  • Such a mobile cleaning device is both from the DE 35 30 954 A as well as from the US 2,919,070 A known and has proven itself in principle.
  • the disadvantage is that despite the alternative provision of high-pressure hot water or dry steam, the number of applications is not as large as expected.
  • the device according to the principle are mobile cleaning devices in a variety of embodiments known, for example as Hochlichkaltwasser-, Hochdruckh constitutingement- or as Nillerdampfrillian.
  • dry ice and dry steam cleaners are already state of the art.
  • the previously known mobile cleaning devices are adapted to the requirements of the respective application areas and quite suitable to meet these special requirements.
  • the invention has therefore set itself the task of creating a mobile cleaning device of the type described above, which has a wider range of applications while maintaining its simple and inexpensive construction.
  • the invention provides, in accordance with the characterizing part of claim 1, that the cleaning device has a connection device for feeding compressed air.
  • the volume of the dry steam to be applied can be increased and it is achieved an unprecedented versatility of the device.
  • a mobile cleaning device 1 has a housing 48 arranged on a chassis.
  • the heating device 4 Within the housing 48, the heating device 4, a high-pressure pump 3, which is operated by means of an electric motor, a detergent pump, the water tank 2, the fuel tank 31 and the electronics and a Kalkschutzsystem arranged.
  • the mobile cleaning device 1 has a discharge device 24 for discharging high-pressure hot water 46 and a Ausbringvornchtung 25 for discharging dry steam 47, both Ausbringvoriquesen 24, 25 are connected via flexible hoses 26,27 to the corresponding connection devices 21,22 for high-pressure hot water and dry steam ,
  • the mobile cleaning device 1 in addition to a detergent line 15, in the front region of a filter can be arranged and can be supplied to the cleaning agent 43 from an external container 14 in a simple manner.
  • the cleaning container 14 also within the housing 48.
  • a plug connection 30b is also arranged for a control cable 30 leading to the discharge device 25 for the dry steam.
  • a control panel 49 which in addition to several display devices, such as a pressure gauge 34, a thermostat 36, a water level control 38 and a fuel level control 39, the main switch 37 and an emergency stop switch 35 has.
  • a fuel filler neck 40 and an exhaust gas outlet opening 41 is further arranged.
  • the water 42 preferably demineralized and decalcified water, is filled into the water tank 2 via a water inlet port 50. From the water tank 2, the water 42 is sucked by an electric pump 3 via a suction line 7 and conveyed via a pressure line 8 to the heater 4 and further to the dispensing devices 24 and 25. Immediately after the pump 3, a switching valve 19 is arranged in the course of the pressure line 8, which directs the water 42 either in the first pressure line section 8b for providing high-pressure hot water 46 or in the second pressure line section 8a for providing dry steam 47.
  • a pressure control device 9 is arranged in the form of a pressure control valve, by means of which the pressure in the pressure line section 8b is set to approximately 120 bar.
  • a pressure control device 9 is also arranged in the form of a pressure control valve, wherein in this second pressure line section 8b for providing dry steam 47, the pressure is controlled to about 30 bar.
  • the pressure line section 8b has two sub-branches, in each of which a flow control device 10, 10 'is arranged in the form of a throttle nozzle. The diameter of the throttle nozzle 10, 10 'defines how much water is fed into the heater 4 per minute. From this amount of water supplied to the heater 4, it depends on whether the produced steam is supplied to the discharge device 25 as wet or dry steam.
  • the two pressure line sections 8a and 8b are then brought together again to form a common pressure line 8 and open into the heating device 4, wherein a flow monitor 12 is arranged in the pressure line 8.
  • the heater 4 is formed in the illustrated embodiment as a fossil fuel 44 operable steam generator.
  • the steam generator in this case has a steam boiler 5 and an oil burner 6.
  • the oil burner 6 is a pump 32nd assigned, which is connected via a suction line 33 and a return line 33 'to the container 31 for the fuel 44 in connection.
  • a heating strikes in the form of a thick-walled steel tube is arranged, with an optimal management of the combustion gases ensures environmentally friendly combustion with high efficiency.
  • a dispensing device 24 for Hochdruckterrorismwasser 46 in the form of a cleaning lance is connected via a flexible hose 27 in the illustrated embodiment, wherein the outlet of the high-pressure hot water 46 via a Hochtikstrahldüse 28 takes place.
  • a discharge device 25 for dry steam 47 can be connected, which is also designed as a cleaning lance and 26 via a flexible special hose allows the transport of the dry steam 47.
  • a safety valve 45 is also arranged.
  • a connecting device 16 for compressed air is furthermore provided, the feeding of the compressed air via the compressed air line 17 into the discharge line 13.
  • a heat exchanger 18, which is fed by the heater 4 is arranged to ensure that the introduced compressed air has at least approximately the same temperature as the dry steam 47, which can ensure that at the dispensing device 25 actually dry steam 47 emerges. If, for example, one were to feed the compressed air into the discharge line 13 without heating, the dry steam 47 located in the discharge line 13 would cool to a temperature below 170 ° and would no longer emerge as wet steam at the discharge device 25.
  • FIG. 3a and 3b Another embodiment is in Fig. 3a and 3b shown. It goes without saying that the cleaning device according to the invention in addition to the illustrated embodiment as a mobile device can also be designed as a standalone device.
  • the boiler pump 3 sucks on the suction line 7 water 42 from the water tank 2 and pumps it via the pressure line 8, in the course of which a check valve is arranged in the empty steam boiler 51. Reaches the water 2 the probe 57 automatically turns on the heater. When the water 42 reaches the probe 58, the boiler pump switches off automatically.
  • the heating of the water 2 via heating cartridges 52, each providing a power of 9000 W in the illustrated embodiment.
  • Each heating cartridge 52 consists of several heating elements, which are grouped together.
  • the heating device 4 By heating the water 2 51 pressure is built up in the boiler, which can be limited by the pressure regulators 59. When the pressure setpoint or the preset working pressure is reached, the heating device 4 automatically switches off again. Via the pressure indicator 61 it can be seen which working pressure has been reached. When the electric valve 62 is opened, the steam flows via the line 67 into the mixer 63, where, as required, cleaning agent 43 or disinfectant can be supplied by means of the electric pump 56, which can be designed, for example, as an oscillating piston pump. About the plug-in coupling 29, the vapor-cleaning agent mixture thus produced can be performed by means of a steam hose to the execution device 25.
  • compressed air can be supplied via the line 71 to a heat coupling device 72 via the mixing group 68, in which the compressed air is heated by means of steam and then via the plug-in coupling 70 via a pressure-tight hose and the plug-in coupling 53 of the dispensing device 25, which can be designed, for example, as a lance , is supplied.
  • 25 control elements 54 are arranged in the handle of the dispensing device.
  • the allowable working pressure so opens the safety valve 45, so that the pressure can escape. If the boiler pump 3 fails, so that no more water 2 is pumped into the steam boiler 51, the water level falls below the probe 57, whereupon the heating device 4 automatically switches off. If the water 42 in the water tank 2 reaches a minimum level, then a level switch 73 arranged in the water tank 2 switches off the heating device 4. If a minimum level is reached in the detergent container 14, the level switch 74 arranged there switches off the pump 56 automatically in a simple manner.
  • this second embodiment of the invention it is possible to provide electric power - with different power of 9000 W or 18000 W - steam and to heat it optionally to 175 ° C / 6 bar or 195 ° C / 9.5 bar.
  • These two different steam levels can volume controlled with compressed air, at least 2.5 m 3 to 3.5 m 3 at 6 to 8 bar, and optionally mixed with detergent by means of attachable steam and compressed air hose via a dispensing device, in the electrically the desired amount of steam , Compressed air and detergent can be controlled, discharged.
  • a steam-compressed air cleaning agent mixture a much larger field of activity in industrial cleaning can be covered than was the case with the previously known generic devices.
  • the hitherto known applications for cold and hot water high pressure cleaning devices can be achieved and also the removal of coarse dirt, grease, oil, graphite and similar dirt deposits on industrial production machines and systems are made possible with the dry hot steam jet.
  • contaminations and disinfections can be made, whereby the addition of compressed air / compressed air a multiple of dry steam can be produced with the new applications, such as dry steam blasting with high temperature result.
  • the dry steam jet above the compressed air additional means, such as stone dust to supply, and thus to increase the cleaning effect in addition.
  • the invention is not limited to the illustrated embodiments.
  • the switching valve could be omitted.
  • the integration of a detergent container with detergent within the housing of the mobile cleaning device would be quite conceivable or feasible.

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  • Cleaning By Liquid Or Steam (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Abstract

Mobile cleaning device (1) comprises a water container, a pump, a heater and an output device (24, 25) to selectively prepare and deliver high pressure hot water (36) and dry steam. Preferred Features: The high pressure hot water has a temperature of 90[deg] C and a pressure of more than 100 bar, preferably 120 bar. The dry steam has a temperature of more than 170[deg] C, preferably 185[deg] C, and a pressure of at least 23 bar, preferably 30 bar. Heating of the water and preparation of the high pressure hot water and hot steam are carried out in the same heater.

Description

Die Erfindung betrifft ein mobiles Reinigungsgerät, insbesondere Hochdruckreinigungsgerät, mit einem Wasserbehälter, einer Pumpe, wenigstens einer Heizeinrichtung zum Erwärmen des Wassers und einer Ausbringvorrichtung für das Wasser, wobei das Reinigungsgerät zum wahlweisen Bereitstellen und Ausbringen von Hochdruckheißwasser bzw. von Trockendampf ausgebildet ist, in Übereinstimmung mit dem einleitenden Teil des Anspruches 1.The invention relates to a mobile cleaning device, in particular high-pressure cleaning device, with a water tank, a pump, at least one heater for heating the water and a discharge device for the water, wherein the cleaning device is designed for selectively providing and discharging high-pressure hot water or dry steam, in accordance with the introductory part of claim 1.

Ein derartiges mobiles Reinigungsgerät ist sowohl aus der DE 35 30 954 A als auch aus der US 2,919,070 A bekannt und hat sich grundsätzlich bewährt. Nachteilig ist, dass trotz der alternativen Bereitstellung von Hochdruckheißwasser bzw. von Trockendampf die Zahl der Anwendungsgebiete nicht so groß ist wie zu erwarten.Such a mobile cleaning device is both from the DE 35 30 954 A as well as from the US 2,919,070 A known and has proven itself in principle. The disadvantage is that despite the alternative provision of high-pressure hot water or dry steam, the number of applications is not as large as expected.

Das Gleiche gilt für die FR2 326 903 A , die heißes Wasser unter hohem Druck und, getrennt und unabhängig davon, ein Reinigungsmittel ausbringen kann.The same goes for the FR2 326 903 A , the hot water under high pressure and, separately and independently, can bring out a detergent.

Auch das Gerät gemäß der Prinzipiell sind mobile Reinigungsgeräte in verschiedensten Ausführungsvarianten bekannt, beispielsweise als Hochdruckkaltwasser-, Hochdruckheißwasser- oder als Nassdampfreiniger. Ebenso zählen Trockeneis- und Trockendampfreiniger bereits zum Stand der Technik. Die bisher bekannten mobilen Reinigungsgeräte sind den Erfordernissen der jeweiligen Einsatzgebiete angepasst und durchaus geeignet, diese speziellen Anforderungen zu erfüllen.Also, the device according to the principle are mobile cleaning devices in a variety of embodiments known, for example as Hochdruckkaltwasser-, Hochdruckheißwasser- or as Naßdampfreiniger. Likewise, dry ice and dry steam cleaners are already state of the art. The previously known mobile cleaning devices are adapted to the requirements of the respective application areas and quite suitable to meet these special requirements.

Allerdings sind die bisher bekannten Reinigungsgeräte aufgrund ihrer speziellen Bauart, die sich hauptsächlich auf die Art der verwendeten Heizeinrichtung sowie auf die den geforderten Wassertemperaturen angepassten Materialien auswirkt, auf einzelne Anwendungsgebiete beschränkt.However, the previously known cleaning devices are limited to individual fields of application due to their special design, which mainly affects the type of heater used and the materials adapted to the required water temperatures.

Die Erfindung hat es sich daher zur Aufgabe gemacht, ein mobiles Reinigungsgerät der eingangs angegebenen Art zu schaffen, das über einen größeren Anwendungsbereich verfügt und dabei seine einfache und kostengünstige Konstruktion beibehält.The invention has therefore set itself the task of creating a mobile cleaning device of the type described above, which has a wider range of applications while maintaining its simple and inexpensive construction.

Zur Lösung dieser Aufgabe sieht die Erfindung in Übereinstimmung mit dem kennzeichnenden Teil des Anspruches 1 vor, dass das Reinigungsgerät eine Anschlusseinrichtung zum Einspeisen von Pressluft aufweist. So kann das Volumen des auszubringenden Trockendampfes erhöht werden und es wird eine bisher unerreichte Vielseitigkeit des Gerätes erreicht.To achieve this object, the invention provides, in accordance with the characterizing part of claim 1, that the cleaning device has a connection device for feeding compressed air. Thus, the volume of the dry steam to be applied can be increased and it is achieved an unprecedented versatility of the device.

Weitere Vorteile und Einzelheiten der Erfindung werden anhand der nachfolgenden Figurenbeschreibung unter Bezugnahme auf die in den Zeichnungen dargestellten Ausführungsbeispiele näher erläutert. Darin zeigt

Fig. 1
eine perspektivische Darstellung eines mobilen Reinigungsgerätes und
Fig. 2
ein Robrleitungsschema mit einer erfindungsgemäßen Vorrichtung.
Further advantages and details of the invention will be explained in more detail with reference to the following description of the figures with reference to the exemplary embodiments illustrated in the drawings. It shows
Fig. 1
a perspective view of a mobile cleaning device and
Fig. 2
a Robrleitungsschema with a device according to the invention.

Das in Fig. 1 dargestellte Ausführongsbeispiel eines erfindungsgemäßen mobilen Reinigungsgerätes 1 weist ein auf einem Fahrgestell angeordnetes Gehäuse 48 auf. Innerhalb des Gehäuses 48 ist die Heizeinrichtung 4, eine Hochdruckpumpe 3, die mittels eines Elektromotors betrieben wird, eine Reinigungsmittelpumpe, der Wasserbehälter 2, der Brennstoffbehälter 31 sowie die Elektronik und ein Kalkschutzsystem angeordnet. Das mobile Reinigungsgerät 1 verfügt über eine Ausbringvorrichtung 24 zum Ausbringen von Hochdruckheißwasser 46 sowie über eine Ausbringvornchtung 25 zum Ausbringen von Trockendampf 47, wobei beide Ausbringvorrichtungen 24, 25 über flexible Schläuche 26,27 an den entsprechenden Anschlussvorrichtungen 21,22 für Hochdruckheißwasser und Trockendampf angeschlossen sind. Neben diesen bei den Anschlussvorrichtungen 21, 22 weist das mobile Reinigungsgerät 1 zusätzlich eine Reinigungsmittelleitung 15 auf, in deren vorderem Bereich ein Filter angeordnet sein kann und über den in einfacher Weise Reinigungsmittel 43 aus einem externen Behälter 14 zugeführt werden kann. Selbstverständlich ist es aber auch möglich den Reinigungsbehälter 14 ebenfalls innerhalb des Gehäuses 48 anzuordnen. An der Außenseite des Gehäuses 48 ist zudem eine Steckverbindung 30b für ein zur Ausbringvorrichtung 25 für den Trockendampf führendes Steuerkabel 30 angeordnet.This in Fig. 1 illustrated Ausführongsbeispiel a mobile cleaning device 1 according to the invention has a housing 48 arranged on a chassis. Within the housing 48, the heating device 4, a high-pressure pump 3, which is operated by means of an electric motor, a detergent pump, the water tank 2, the fuel tank 31 and the electronics and a Kalkschutzsystem arranged. The mobile cleaning device 1 has a discharge device 24 for discharging high-pressure hot water 46 and a Ausbringvornchtung 25 for discharging dry steam 47, both Ausbringvorrichtungen 24, 25 are connected via flexible hoses 26,27 to the corresponding connection devices 21,22 for high-pressure hot water and dry steam , In addition to these in the connection devices 21, 22, the mobile cleaning device 1 in addition to a detergent line 15, in the front region of a filter can be arranged and can be supplied to the cleaning agent 43 from an external container 14 in a simple manner. Of course, it is also possible to arrange the cleaning container 14 also within the housing 48. On the outside of the housing 48, a plug connection 30b is also arranged for a control cable 30 leading to the discharge device 25 for the dry steam.

Die Bedingung und Kontrolle des mobilen Reinigungsgerätes 1 erfolgt über ein Bedienungsfeld 49, das neben mehreren Anzeigevorrichtungen, wie einem Manometer 34, einem Thermostat 36, einer Wassemiveaukontrolle 38 und einer Brennstoffniveaukontrolle 39, den Hauptschalter 37 sowie einen NOT-AUS-Schalter 35 verfügt. Auf der leicht zugänglichen Oberseite des Gehäuses 48 ist weiters ein Brennstoffeinfüllstutzen 40 sowie eine Abgasaustrittsöffnung 41 angeordnet.The condition and control of the mobile cleaning device 1 via a control panel 49, which in addition to several display devices, such as a pressure gauge 34, a thermostat 36, a water level control 38 and a fuel level control 39, the main switch 37 and an emergency stop switch 35 has. On the easily accessible top of the housing 48, a fuel filler neck 40 and an exhaust gas outlet opening 41 is further arranged.

Im Folgenden soll anhand der Fig. 2 die Funktionsweise der erfindungsgemäßen Vorrichtung beschrieben werden. Das Wasser 42, vorzugsweise entmineralisiertes und entkalktes Wasser, wird über einen Wasserzulaufanschluss 50 in den Wasserbehälter 2 gefüllt. Vom Wasserbehälter 2 wird das Wasser 42 von einer elektrischen Pumpe 3 über eine Saugleitung 7 angesaugt und über eine Druckleitung 8 zur Heizeinrichtung 4 und weiter zu den Ausbringvorrichtungen 24 und 25 befördert. Unmittelbar nach der Pumpe 3 ist im Verlauf der Druckleitung 8 ein Umschaltventil 19 angeordnet, welches das Wasser 42 entweder in den ersten Druckerleitungsabschnitt 8b zur Bereitstellung von Hochdruckheißwasser 46 oder in den zweiten Druckleitungsabschnitt 8a zur Bereitstellung von Trockendampf 47 leitet.The following is based on the Fig. 2 the operation of the device according to the invention will be described. The water 42, preferably demineralized and decalcified water, is filled into the water tank 2 via a water inlet port 50. From the water tank 2, the water 42 is sucked by an electric pump 3 via a suction line 7 and conveyed via a pressure line 8 to the heater 4 and further to the dispensing devices 24 and 25. Immediately after the pump 3, a switching valve 19 is arranged in the course of the pressure line 8, which directs the water 42 either in the first pressure line section 8b for providing high-pressure hot water 46 or in the second pressure line section 8a for providing dry steam 47.

Im ersten Druckleitungsabschnitt 8b ist eine Druckregeleinrichtung 9 in Form eines Druckregelventils angeordnet, mittels dem der Druck im Druckleitungsabschnitt 8b auf ca. 120 bar eingestellt wird. Im zweiten Druckleitungsabschnitt 8a ist ebenfalls eine Druckregeleinrichtung 9 in Form eines Druckregelventils angeordnet, wobei in diesem zweiten Druckleitungsabschnitt 8b zur Bereitstellung von Trockendampf 47 der Druck auf etwa 30 bar geregelt wird. Der Druckleitungsabschnitt 8b weist zwei Unterzweige auf, in denen jeweils eine Mengenregeleinrichtung 10, 10' in Form einer Drosseldüse angeordnet ist. Der Durchmesser der Drosseldüse 10, 10' legt fest wie viel Wasser pro Minute in die Heizeinrichtung 4 geführt wird. Von dieser der Heizeinrichtung 4 zugeführten Wassermenge hängt es ab, ob der produzierte Dampf der Ausbringvorrichtung 25 als Nass- oder Trockendampf zugeführt wird.In the first pressure line section 8b, a pressure control device 9 is arranged in the form of a pressure control valve, by means of which the pressure in the pressure line section 8b is set to approximately 120 bar. In the second pressure line section 8a, a pressure control device 9 is also arranged in the form of a pressure control valve, wherein in this second pressure line section 8b for providing dry steam 47, the pressure is controlled to about 30 bar. The pressure line section 8b has two sub-branches, in each of which a flow control device 10, 10 'is arranged in the form of a throttle nozzle. The diameter of the throttle nozzle 10, 10 'defines how much water is fed into the heater 4 per minute. From this amount of water supplied to the heater 4, it depends on whether the produced steam is supplied to the discharge device 25 as wet or dry steam.

Die beiden Druckleitungsabschnitte 8a und 8b werden dann wieder zu einer gemeinsamen Druckleitung 8 zusammengeführt und münden in die Heizeinrichtung 4, wobei in der Druckleitung 8 ein Strömungswächter 12 angeordnet ist.The two pressure line sections 8a and 8b are then brought together again to form a common pressure line 8 and open into the heating device 4, wherein a flow monitor 12 is arranged in the pressure line 8.

Die Heizeinrichtung 4 ist beim dargestellten Ausführungsbeispiel als ein mit fossilen Brennstoffen 44 betreibbarer Dampferzeuger ausgebildet. Der Dampferzeuger weist dabei einen Dampfkessel 5 sowie einen Ölbrenner 6 auf. Dem Ölbrenner 6 ist eine Pumpe 32 zugeordnet, die über eine Saugleitung 33 und eine Rücklaufleitung 33' mit dem Behälter 31 für den Brennstoff 44 in Verbindung steht.The heater 4 is formed in the illustrated embodiment as a fossil fuel 44 operable steam generator. The steam generator in this case has a steam boiler 5 and an oil burner 6. The oil burner 6 is a pump 32nd assigned, which is connected via a suction line 33 and a return line 33 'to the container 31 for the fuel 44 in connection.

Innerhalb des Dampfkessels 5 ist eine Heizschlage in Form eines dickwandigen Stahlrohres angeordnet, wobei eine optimale Führung der Verbrennungsgase eine umweltfreundliche Verbrennung mit hohem Wirkungsgrad sicherstellt.Within the boiler 5, a heating strikes in the form of a thick-walled steel tube is arranged, with an optimal management of the combustion gases ensures environmentally friendly combustion with high efficiency.

Vom Dampfkessel 5 wird das Hochdruckheißwasser 46 bzw. der Trockendampf 47 über die Ausbringleitung 13 zur Anschlussvorrichtung 21 zum Ausbringen von Hochdruckheizwasser 46 oder zur Anschlussvorrichtung 22 zum Ausbringen von Trockendampf 47 geführt, je nach Stellung des Umschaltventils 20. Zwischen dem Dampfkessel 5 und dem Umschaltventil 20 ist ein weiters Thermostat 23 angeordnet.From the steam boiler 5, the high-pressure hot water 46 and the dry steam 47 via the discharge line 13 to the connection device 21 for discharging Hochdruckruckwasser 46 or to the connection device 22 for discharging dry steam 47, depending on the position of the switching valve 20. Between the steam boiler 5 and the switching valve 20th a further thermostat 23 is arranged.

An der Anschlussvorrichtung 21 ist beim gezeigten Ausführungsbeispiel eine Ausbringvorrichtung 24 für Hochdruckheizwasser 46 in Form einer Reinigungslanze über einen flexiblen Schlauch 27 angeschlossen, wobei der Austritt des Hochdruckheißwassers 46 über eine Hochdruckstrahldüse 28 erfolgt.At the connecting device 21, a dispensing device 24 for Hochdruckheizwasser 46 in the form of a cleaning lance is connected via a flexible hose 27 in the illustrated embodiment, wherein the outlet of the high-pressure hot water 46 via a Hochdruckstrahldüse 28 takes place.

An der zweiten Anschlussvorrichtung 22 ist eine Ausbringvorrichtung 25 für Trockendampf 47 anschließbar, die ebenfalls als Reinigungslanze ausgebildet ist und über einen flexiblen Spezialschlauch 26 den Transport des Trockendampfes 47 ermöglicht.At the second connection device 22, a discharge device 25 for dry steam 47 can be connected, which is also designed as a cleaning lance and 26 via a flexible special hose allows the transport of the dry steam 47.

Die Ausbringung des Trockendampfes 47 erfolgt über eine Dampfstrahldüse 29, wobei das Ausbringen des Trockendampfes 47 über den Steuerknopf 30a, der mit der Anschlussvorrichtung 30b des mobilen Reinigungsgerätes 1 über eine Steuerleitung 30 in Verbindung steht, gesteuert wird.The application of the dry steam 47 via a steam jet nozzle 29, wherein the discharge of the dry steam 47 via the control button 30a, which communicates with the connection device 30b of the mobile cleaning device 1 via a control line 30, is controlled.

Zwischen dem Umschaltventil 20 und der Anschlussvorrichtung 22 ist zudem ein Sicherheitsventil 45 angeordnet.Between the switching valve 20 and the connecting device 22, a safety valve 45 is also arranged.

Um den Volumenstrom des auszubringenden Trockendampfes 47 erhöhen zu können, ist weiters eine Anschlussvorrichtung 16 für Pressluft vorgesehen, wobei das Einspeisen der Pressluft über die Pressluftleitung 17 in die Ausbringleitung 13 erfolgt. Im Verlauf der Pressluftleitung 17 ist ein Wärmetauscher 18, der von der Heizeinrichtung 4 gespeist wird angeordnet, um sicherzustellen, dass die eingebrachte Pressluft zumindest annähernd die gleiche Temperatur wie der Trockendampf 47 hat, wodurch sichergestellt werden kann, dass an der Ausbringvorrichtung 25 tatsächlich Trockendampf 47austritt. Würde man nämlich die Pressluft ohne Erwärmung in die Ausbringleitung 13 einspeisen, würde sich der in der Ausbringleitung 13 befindliche Trockendampf 47 auf eine unter 170° liegende Temperatur abkühlen und würde dann an der Ausbringvorrichtung 25 nicht mehr als Trocken- sonder als Nassdampf austreten.In order to be able to increase the volume flow of the dry steam 47 to be delivered, a connecting device 16 for compressed air is furthermore provided, the feeding of the compressed air via the compressed air line 17 into the discharge line 13. In the course of the compressed air line 17, a heat exchanger 18, which is fed by the heater 4 is arranged to ensure that the introduced compressed air has at least approximately the same temperature as the dry steam 47, which can ensure that at the dispensing device 25 actually dry steam 47 emerges. If, for example, one were to feed the compressed air into the discharge line 13 without heating, the dry steam 47 located in the discharge line 13 would cool to a temperature below 170 ° and would no longer emerge as wet steam at the discharge device 25.

Eine weitere Ausführungsvariante ist in Fig. 3a und 3b dargestellt. Es versteht sich dabei von selbst, dass das erfindungsgemäße Reinigungsgerät neben der dargestellten Ausführungsvariante als Mobilgerät ebenso als Standgerät ausgeführt sein kann.Another embodiment is in Fig. 3a and 3b shown. It goes without saying that the cleaning device according to the invention in addition to the illustrated embodiment as a mobile device can also be designed as a standalone device.

Unter Bezugnahme auf die Fig. 3a wird nachfolgend die Funktionsweise dieses zweiten Ausführungsbeispieles näher erläutert: Die Kesselpumpe 3 saugt über die Saugleitung 7 Wasser 42 aus dem Wasserbehälter 2 an und pumpt dieses über die Druckleitung 8, in deren Verlauf ein Rückschlagventil angeordnet ist, in den leeren Dampfkessel 51. Erreicht das Wasser 2 die Sonde 57 schaltet die Heizeinrichtung automatisch an. Erreicht das Wasser 42 die Sonde 58, schaltet die Kesselpumpe automatisch aus. Das Erhitzen des Wassers 2 erfolgt über Heizpatronen 52, die beim dargestellten Ausführungsbeispiel jeweils eine Leistung von 9000 W erbringen. Jede Heizpatrone 52 besteht dabei aus mehreren Heizstäben, die zu Gruppen zusammengefasst sind.With reference to the Fig. 3a The boiler pump 3 sucks on the suction line 7 water 42 from the water tank 2 and pumps it via the pressure line 8, in the course of which a check valve is arranged in the empty steam boiler 51. Reaches the water 2 the probe 57 automatically turns on the heater. When the water 42 reaches the probe 58, the boiler pump switches off automatically. The heating of the water 2 via heating cartridges 52, each providing a power of 9000 W in the illustrated embodiment. Each heating cartridge 52 consists of several heating elements, which are grouped together.

Durch das Erhitzen des Wassers 2 wird im Dampfkessel 51 Druck aufgebaut, der mittels den Druckreglern 59 limitiert werden kann. Bei Erreichen der Drucksollvorgabe bzw. des voreingestellten Arbeitsdruckes schaltet die Heizeinrichtung 4 automatisch wieder aus. Über die Druckanzeige 61 kann ersehen werden, welcher Arbeitsdruck erreicht wurde. Beim Öffnen des elektrischen Ventils 62 strömt der Dampf über die Leitung 67 in den Mischer 63, wo je nach Bedarf Reinigungsmittel 43 oder Desinfektionsmittel mittels der elektrischen Pumpe 56, die beispielsweise als Schwingkolbenpumpe ausgebildet sein kann, zugeführt werden kann. Über die Steckkupplung 29 kann das so erzeugte Dampf-ReinigungsmittelGemisch mittels eines Dampfschlauches zur Ausführungsvorrichtung 25 geführt werden.By heating the water 2 51 pressure is built up in the boiler, which can be limited by the pressure regulators 59. When the pressure setpoint or the preset working pressure is reached, the heating device 4 automatically switches off again. Via the pressure indicator 61 it can be seen which working pressure has been reached. When the electric valve 62 is opened, the steam flows via the line 67 into the mixer 63, where, as required, cleaning agent 43 or disinfectant can be supplied by means of the electric pump 56, which can be designed, for example, as an oscillating piston pump. About the plug-in coupling 29, the vapor-cleaning agent mixture thus produced can be performed by means of a steam hose to the execution device 25.

Bei Bedarf kann über die Mischgruppe 68 DrucKluft über die Leitung 71 einer Wärmekopplungseinrichtung 72 zugeführt werden, in der die Druckluft mittels Dampf erwärmt wird und dann über die Steckkupplung 70 über einen Druckschlussschlauch und die Steckkupplung 53 der Ausbringvorrichtung 25, die beispielsweise als Lanze ausgebildet sein kann, zugeführt wird.If required, compressed air can be supplied via the line 71 to a heat coupling device 72 via the mixing group 68, in which the compressed air is heated by means of steam and then via the plug-in coupling 70 via a pressure-tight hose and the plug-in coupling 53 of the dispensing device 25, which can be designed, for example, as a lance , is supplied.

An der Ausbringvorrichtung 25 kann entweder Dampf oder Druckluft oder ein Gemisch aus beidem zusammen mit Reinigungs- bzw. Desinfektionsmittel, vorzugsweise elektrisch gesteuert, gemischt werden. Dazu sind im Handgriff der Ausbringvorrichtung 25 Steuerungselemente 54 angeordnet. Wenn Dampf über das elektrische Ventil 62 aus dem Dampfkessel 51 abgelassen wird, wird über die Kesselpumpe 3 genauso viel Wasser 2 in den Kessel 51 gepumpt, wie Dampf abgelassen wurde. Damit werden kontinuierlich die Temperatur und der Arbeitsdruck gehalten, sodass kein Arbeitsdruck- oder Temperaturverlust entsteht.Either steam or compressed air or a mixture of both together with cleaning or disinfecting agent, preferably electrically controlled, can be mixed at the dispensing device 25. For this purpose, 25 control elements 54 are arranged in the handle of the dispensing device. When steam is exhausted from the steam boiler 51 via the electric valve 62, the same amount of water 2 is pumped into the boiler 51 via the boiler pump 3 as steam has been discharged. Thus, the temperature and the working pressure are kept continuously, so that no pressure or temperature loss occurs.

Sollte infolge eines Schadens an der Kesselpumpe 3 oder der elektrischen Steuerung oder aufgrund von Wassermangel der zulässige Arbeitsdruck überstiegen werden, so öffnet das Sicherheitsventil 45, sodass der Überdruck entweichen kann. Fällt die Kesselpumpe 3 aus, sodass kein Wasser 2 mehr in den Dampfkessel 51 gepumpt wird, fällt der Wasserstand unter die Sonde 57, worauf die Heizeinrichtung 4 automatisch ausschaltet. Erreicht das Wasser 42 im Wassertank 2 einen Minimalstand, dann schaltet ein im Wasserbehälter 2 angeordneter Niveauschalter 73 die Heizeinrichtung 4 aus. Wird im Reinigungsmittelbehälter 14 ein Minimalstand erreicht, schaltet der dort angeordnete Niveauschalter 74 in einfacher Weise die Pumpe 56 automatisch aus.Should be exceeded due to damage to the boiler pump 3 or the electrical control or due to lack of water, the allowable working pressure, so opens the safety valve 45, so that the pressure can escape. If the boiler pump 3 fails, so that no more water 2 is pumped into the steam boiler 51, the water level falls below the probe 57, whereupon the heating device 4 automatically switches off. If the water 42 in the water tank 2 reaches a minimum level, then a level switch 73 arranged in the water tank 2 switches off the heating device 4. If a minimum level is reached in the detergent container 14, the level switch 74 arranged there switches off the pump 56 automatically in a simple manner.

Mit diesem zweiten Ausführungsbeispiel der Erfindung ist es möglich, elektrisch - mit unterschiedlicher Leistung von 9000 W bzw. 18000 W - Dampf bereitzustellen und diesen wahlweise auf 175 °C/6 bar oder 195 °C/9,5 bar zu erhitzen. Diese zwei verschiedenen Dampfstufen können mengengeregelt mit Druckluft, mindestens mit 2,5 m3 bis 3,5 m3 bei 6 bis 8 bar, und wahlweise mit Reinigungsmittel gemischt mittels ansteckbarem Dampf- und Druckluftschlauch über eine Ausbringvorrichtung, in der elektrisch die gewünschte Menge Dampf, Druckluft und Reinigungsmittel gesteuert werden kann, ausgebracht werden. Mit einem derartigen Dampf-Druckluft-Reinigungsmittelgemisch kann ein weit größeres Betätigungsfeld in der Industriereinigung abgedeckt werden, als dies mit den bisher bekannten gattungsgemäßen Vorrichtungen der Fall war.With this second embodiment of the invention, it is possible to provide electric power - with different power of 9000 W or 18000 W - steam and to heat it optionally to 175 ° C / 6 bar or 195 ° C / 9.5 bar. These two different steam levels can volume controlled with compressed air, at least 2.5 m 3 to 3.5 m 3 at 6 to 8 bar, and optionally mixed with detergent by means of attachable steam and compressed air hose via a dispensing device, in the electrically the desired amount of steam , Compressed air and detergent can be controlled, discharged. With such a steam-compressed air cleaning agent mixture, a much larger field of activity in industrial cleaning can be covered than was the case with the previously known generic devices.

Mit dem erfindungsgemäßen mobilen Reinigungsgerät können also die bisher bekannten Anwendungen für Kalt- und Heißwasserhochdruckreinigungsgeräte erzielt und zudem das Entfernen von Grobverschmutzungen, Fett, Öl, Grafit und ähnlichen Schmutzablagerungen an industrie-Produktionsmaschinen und -anlagen mit dem trockenen Heißdampfstrahl ermöglicht werden. Ebenso können Kontaminierungen und Desinfektionen vorgenommen werden, wobei durch die Zuschalung von Press-/Druckluft ein Vielfaches an Trockendampf produziert werden kann, mit dem sich neue Anwendungsmöglichkeiten, wie bspw. Trockendampfstrahlen mit hoher Temperatur, ergeben. Weiters wäre es möglich, dem Trockendampfstrahl Ober die Pressluft zusätzliche Mittel, wie beispielsweise Steinmehl, zuzuführen und damit die Reinigungswirkung zusätzlich zu erhöhen.With the mobile cleaning device according to the invention, therefore, the hitherto known applications for cold and hot water high pressure cleaning devices can be achieved and also the removal of coarse dirt, grease, oil, graphite and similar dirt deposits on industrial production machines and systems are made possible with the dry hot steam jet. Likewise, contaminations and disinfections can be made, whereby the addition of compressed air / compressed air a multiple of dry steam can be produced with the new applications, such as dry steam blasting with high temperature result. Furthermore, it would be possible for the dry steam jet above the compressed air additional means, such as stone dust to supply, and thus to increase the cleaning effect in addition.

Es versteht sich von selbst, dass die Erfindung nicht auf die dargestellten Ausführungsbeispiele beschränkt ist. So wäre es beispielsweise durchaus möglich und praktikabel die beiden Druckerleitungsabschnitte jeweils mit einer separaten Pumpe mit dem Wasserbehälter zu verbinden. In diesem Fall könnte das Umschaltventil entfallen. Auch die Integration eines Reinigungsmittelbehälters mit Reinigungsmittel innerhalb des Gehäuses des mobilen Reinigungsgerätes wäre durchaus denkbar oder machbar.It goes without saying that the invention is not limited to the illustrated embodiments. For example, it would be quite possible and practical to connect the two pressure line sections each with a separate pump to the water tank. In this case, the switching valve could be omitted. The integration of a detergent container with detergent within the housing of the mobile cleaning device would be quite conceivable or feasible.

Claims (16)

  1. Mobile cleaning device, in particular high-pressure cleaning device, with a water container (2), a pump (3), at least one heater (4) for heating the water, and a discharging device (24, 25) for the water, wherein the cleaning device (1) is designed for optionally preparing and discharging high-pressure hot water (46) or dry steam (47), characterized in that the cleaning device (1) has a connecting means (16) for feeding in compressed air, and in that the compressed air is fed in via a compressed air pipe (17) into the discharging pipe (13) which leads away from the heater (4).
  2. Cleaning device according to Claim 1, characterized in that a heat exchanger (18), which is preferably fed by the heater (4), is arranged in the course of the compressed air pipe (17) in order to heat the compressed air.
  3. Cleaning device according to either of Claims 1 and 2, characterized in that the high-pressure hot water (46) has a temperature of approximately 90°C and a pressure of more than 100 bar, preferably approximately 120 bar, and the dry steam (47) has a temperature of more than 170°C, preferably approximately 185°C and a pressure of at least 23 bar, preferably approximately 30 bar.
  4. Cleaning device according to one of Claims 1 to 3, characterized in that the water (42) is heated by means of the same heater (4) both for the preparation of high-pressure hot water (46) and for the preparation of dry steam (47).
  5. Cleaning device according to one of Claims 1 to 4, characterized in that the heater (4) has a steam generator which can be operated preferably using fossil fuels (44).
  6. Cleaning device according to Claim 5, characterized in that the steam generator has a burner-heated steam boiler (5).
  7. Cleaning device according to one of Claims 1 to 6, characterized in that the pump (3) is provided with a suction pipe (7) leading to the water container (2) and with a pressure pipe (8, 8a, 8b) leading to the heater (4).
  8. Cleaning device according to Claim 7, characterized in that at least one pressure regulator (9) and/or at least one quantity regulator (10, 10') is(are) arranged over the course of the pressure pipe (8, 8a, 8b).
  9. Cleaning device according to Claim 7 or 8, characterized in that the pressure pipe (8) has at least two pressure pipe sections (8a, 8b) which are connected in parallel, with at least one pressure regulator (9), preferably a pressure-regulating valve, being arranged in a first pressure pipe section (8b) for providing high-pressure hot water (46), and at least one pressure regulator (9), preferably a pressure-regulating valve, and at least one quantity regulator (10, 10'), preferably a throttle nozzle, being arranged in a second pressure pipe section (8a) for preparing dry steam (47).
  10. Cleaning device according to Claim 9, characterized in that the first and second pressure pipe sections (8a, 8b) are each assigned a separate pump (3) with a suction pipe (7) leading to the water container (2).
  11. Cleaning device according to Claim 9, characterized in that the first and second pressure pipe sections (8a, 8b) are assigned a common pump (3) with a suction pipe (7) leading to the water container (2), with a changeover valve (19) for optionally charging the first or the second pressure pipe section (8a, 8b) being arranged in the pressure pipe (8) between the pump (3) and the pressure pipe sections (8a, 8b) which are connected in parallel.
  12. Cleaning device according to Claim 9, characterized in that the at least two pressure pipe sections (8a, 8b) are brought together upstream of the heater (4) to form a pressure pipe (8).
  13. Cleaning device according to one of Claims 1 to 12, characterized in that the heater (4) is connected via a discharging pipe (13) to a first connecting device (22) for a discharging device (25) for dry steam (47) and to a second connecting device (21) for a discharging device (24) for high-pressure hot water (46).
  14. Cleaning device according to Claim 13, characterized in that a changeover valve (20) for optionally charging the first connecting device (22) with dry steam (47) or the second connecting device (21) with high-pressure hot water (46) is arranged in the discharging pipe (13).
  15. Cleaning device according to Claim 14, characterized in that a safety valve (45) is arranged in the discharging pipe (13), preferably between the changeover valve (20) and the connecting device (22) for the discharging device (25) for dry steam (47).
  16. Cleaning device according to one of Claims 13 to 15, characterized in that the discharging device (25) for dry steam (47) and/or the discharging device (24) for high-pressure hot water (46) is(are) formed by a cleaning lance which is(are) supplied via a flexible tube (26, 27).
EP07010477A 2006-05-29 2007-05-25 Cleaning device Not-in-force EP1862229B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0092306A AT504272B1 (en) 2006-05-29 2006-05-29 MOBILE CLEANING DEVICE

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EP1862229A1 EP1862229A1 (en) 2007-12-05
EP1862229B1 true EP1862229B1 (en) 2009-09-02

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EP2145699B1 (en) * 2008-07-18 2012-09-12 Nilfisk-Advance A/S Fuel tank ventilation on a pressure washer
CN103817099B (en) * 2014-02-10 2016-07-06 福州德森精工有限公司 A kind of automatic water-supply steam cleaner
DE102015100034A1 (en) * 2015-01-05 2016-07-07 Hebenstreit Gmbh Cleaning device for baking plates of a baking machine system
IT201600105918A1 (en) * 2016-10-20 2018-04-20 Stefano Morrone MACHINE FOR CLEANING AND WASHING OF AIR-CONDITIONERS.
CN110367875A (en) * 2019-06-25 2019-10-25 合肥尘洁清洁技术服务有限公司 Efficient household electrical appliances cleaning device
CN115897466A (en) * 2022-12-27 2023-04-04 徐州徐工环境技术有限公司 Dual-mode high-pressure waterway system, control method thereof and sweeper

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US2919070A (en) 1955-12-16 1959-12-29 Arant Perry Method of steam cleaning and liquid rinsing
US3522909A (en) * 1968-06-26 1970-08-04 Clayton Manufacturing Co Instantaneous high-impact fluid jet cleaning systems
FR2326903A1 (en) 1975-10-06 1977-05-06 Tamani Jerome HIGH PRESSURE CLEANING MACHINE WITH DETERGENT SEPARATED FROM WATER
DE2724283B2 (en) * 1977-05-28 1979-08-16 Frank'sche Eisenwerke Ag, 6340 Dillenburg Spraying device for cleaning equipment, plant protection equipment, etc.
DE3526024A1 (en) * 1985-07-20 1987-01-29 Kaercher Gmbh & Co Alfred High-pressure cleaning device
DE3530954A1 (en) * 1985-08-29 1987-03-12 Oberdorfer G Wap Masch HIGH PRESSURE CLEANER

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ATE441488T1 (en) 2009-09-15
EP1862229A1 (en) 2007-12-05
AT504272A1 (en) 2008-04-15
AT504272B1 (en) 2008-10-15
DE502007001434D1 (en) 2009-10-15

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