EP0538238A1 - Method and device for removing dust and dirt particles - Google Patents

Method and device for removing dust and dirt particles Download PDF

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Publication number
EP0538238A1
EP0538238A1 EP92890224A EP92890224A EP0538238A1 EP 0538238 A1 EP0538238 A1 EP 0538238A1 EP 92890224 A EP92890224 A EP 92890224A EP 92890224 A EP92890224 A EP 92890224A EP 0538238 A1 EP0538238 A1 EP 0538238A1
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EP
European Patent Office
Prior art keywords
suction pipe
opening
mouth opening
cleaned
suction
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.)
Withdrawn
Application number
EP92890224A
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German (de)
French (fr)
Inventor
Dietrich Dipl.-Ing. Ranner
Wolf-Dieter Dipl.-Ing. Dr. Buchinger
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.)
BUCHINGER WOLF DIETER
Original Assignee
BUCHINGER WOLF DIETER
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Filing date
Publication date
Application filed by BUCHINGER WOLF DIETER filed Critical BUCHINGER WOLF DIETER
Publication of EP0538238A1 publication Critical patent/EP0538238A1/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
    • E01H1/0863—Apparatus loosening or removing the dirt by blowing and subsequently dislodging it at least partially by suction ; Combined suction and blowing nozzles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/0606—Nozzles with fixed, e.g. adjustably fixed brushes or the like rigidly anchored brushes, combs, lips or pads
    • A47L9/0613—Nozzles with fixed, e.g. adjustably fixed brushes or the like rigidly anchored brushes, combs, lips or pads with means specially adapted for picking up threads, hair or the like, e.g. brushes, combs, lint pickers or bristles pads
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
    • E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
    • E01H1/0836—Apparatus dislodging all of the dirt by suction ; Suction nozzles

Definitions

  • the invention relates to a method for removing dust and dirt particles from large surfaces by moving a suction pipe over the surface, the mouth opening of which is spaced from the surface, preferably essentially parallel to it.
  • the suction pipe is connected to a suction fan.
  • the suction pipe When cleaning large areas, e.g. Roads, slopes of airfields and the like the suction pipe (the suction head) must be arranged at a relatively large distance from the surface to be cleaned for geometric and spatial reasons.
  • the flow velocity of the suction air results from the air volume that has passed through and the area perpendicular to the direction of flow between the suction head and the area to be cleaned.
  • the construction-related distances between the suction basket and the surface of the floor mean that, in order to achieve the required flow speed, such large volumes of air have to be moved that the system components required for this, such as vehicle drive, blower, blower compressor, coarse separator, dust filter etc., are no longer accommodated in a single mobile device can be. That is why conventional large-scale vacuum systems are divided between two or more devices that are coupled together. The suction result is nevertheless unsatisfactory in all such large systems known to date.
  • the invention remedies this deficiency in that, in a method of the type mentioned at the outset, according to the invention, in front of, possibly also behind the mouth of the suction pipe, a swirl roller guiding the suction flow against the surface to be cleaned is formed from at least two air flows brought together at different speeds at an acute angle becomes. Due to the method according to the invention, the air flowing in relatively slowly into the space formed between the suction basket and the surface to be cleaned is deflected by aerodynamic effects from the suction basket against the surface to be cleaned such that a substantial increase in the flow velocity in the vicinity of the surface to be cleaned is achieved, whereby the suction effect and the suction power and thus the cleaning effect are significantly improved.
  • a device has proven particularly suitable for carrying out the method according to the invention, in which a baffle protrudes from at least one of the longer sides of the substantially rectangular mouth opening of the suction pipe, the underside of which is preferably concave.
  • the arrangement of the guide plate results in a favorable air flow in the area of the mouth of the suction pipe. If the guide plate is concavely curved, the guide plate is adapted to the shape of the vortex roller formed under the guide plate.
  • a flow divider is arranged in front of and at a distance from the free edge of the guide plate or the longer side of the mouth opening, which optionally as a wing with itself preferably parallel to the longer one, for generating two different air currents Side of the rectangular mouth opening extending edge is formed.
  • the arrangement of the flow divider allows the generation of two air flows at different speeds, so that a shear effect in the area where the two air flows meet forms a vortex roller that is stationary with respect to the suction head.
  • This vortex roller deflects the major part of the air flowing to the inlet opening of the suction pipe against the surface to be cleaned, which must flow through the relatively low gap between the circumference of the vortex roller and the surface to be cleaned and at the same time achieves a high flow velocity, which releases dirt particles from the surface to be cleaned is beneficial. If the flow divider is designed as a wing (with wing profile), this favors the flow for aerodynamic reasons.
  • the vortex roller can also be achieved by blowing nozzles, which are arranged in front of the mouth of the suction pipe and are pressurized with compressed air, the axes of which preferably run parallel to one another and at an acute angle to the plane of the mouth.
  • the blow nozzles can also be attached to the flow divider, in which case they have the effect of the flow divider.
  • the vortex roll can also be achieved by using the blow nozzles alone, without using the flow divider.
  • the suction pipe is designated, which is connected to a suction fan, not shown in the drawing.
  • the area to be cleaned is designated by 12.
  • the mouth opening 9 of the suction pipe 1 is rectangular in shape, with guide plates 2 projecting from the longer sides 8 of the mouth opening 9, the underside 11 of which can be concavely curved.
  • the flow velocity can be increased by reducing the flow cross section F. Since the length 1 of the flow cross section is predetermined by the device, only the height h of the flow cross section can be reduced in order to reduce the flow cross section.
  • h ′ is significantly smaller than h (distance between the underside of the guide surface 11 of the surface to be cleaned 12)
  • a flow velocity v ' occurs which is substantially greater than the velocity v on the basis of a flow cross-section limited by the underside 11 of the guide surface 2.
  • the flow cross-section is thus reduced aerodynamically, while maintaining a substantially larger geometric distance between the surface 12 to be cleaned and the underside 11 of the guide plates 2.
  • turbulence is generated in the edge zones of the stationary vortex roller 7, the shock-like pressure waves on the dirt parts on the surface to be cleaned Exercise surface 12, whereby the dirt particles are more easily detached from the surface 12 to be cleaned.
  • the vortex roller 7 is formed by bringing together at least two air streams 5 and 6 which flow at different speeds, as can be seen in FIG. 2.
  • flow dividers 3 can be provided, which are arranged in front of and at a distance from the free edge of the guide plate 2 or the longer side 8 of the opening 9.
  • the flow divider 3 can be formed by an airfoil profile, the edge of which extends parallel to the longer side 8 of the rectangular opening 9.
  • compressed air can also be provided with blowing nozzles 4, the axes of which preferably lie parallel to one another in a common plane and enclose an acute angle with the plane in which the opening 9 of the suction pipe 1 lies.
  • the blowing nozzles 4 can also be attached to the flow divider 3. If the flow divider 3 is designed as an airfoil profile, the blowing nozzles 4 are preferably arranged along the edge of the airfoil profile, spaced apart from one another.
  • the air drawn off via the suction pipe 1 can also be used to supply the blowing nozzles 4 after it has been freed from the entrained dust or dirt particles.
  • a separate compressor can be provided to generate the compressed air for the blowing nozzles 4.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)

Abstract

The invention relates to a method for removing dust and dirt particles from large areas by moving a suction pipe over the area, the mouth opening of which suction pipe is held at a distance from the area, preferably essentially parallel thereto, there being formed in front of, possibly also behind, the mouth opening of the suction pipe, from at least two air flows brought together with different speeds at an acute angle, a vortex which guides the suction flow towards the area to be cleaned. The invention also relates to a device for implementing such a method, there projecting from at least one of the longer sides 8 of the essentially rectangular mouth opening 9 of the suction pipe 1 a guide plate 2, the underside 11 of which is preferably concavely curved. <IMAGE>

Description

Die Erfindung betrifft ein Verfahren zum Entfernen von Staub- und Schmutzpartikel von großen Flächen durch Bewegen eines Saugrohres über die Fläche, dessen Einmündungsöffnung von der Fläche beabstandet, bevorzugt im wesentlichen parallel zu dieser, gehalten wird. Das Saugrohr ist an ein Sauggebläse angeschlossen. Beim Reinigen großer Flächen, wie z.B. Straßen, Pisten von Flugplätzen u.dgl. muß das Saugrohr (der Saugkopf) aus geometrischen und räumlichen Gründen in relativ großem Abstand von der zu reinigenden Fläche angeordnet werden. Die Strömungsgeschwindigkeit der Saugluft ergibt sich aus dem durchgesetzten Luftvolumen und der Fläche senkrecht zur Strömungsrichtung zwischen dem Saugkopf und der zu reinigenden Fläche. Die baubedingten Abstände zwischen Saugkorb und Bodenoberfläche führen nun dazu, daß zur Erzielung der erforderlichen Strömungsgeschwindigkeit so große Volumen an Luft bewegt werden müssen, daß die dafür erforderlichen Anlagenteile wie Fahrzeugantrieb, Gebläse, Blaskompressor, Grobabscheider, Staubfilter usw. in einem einzigen Mobilgerät nicht mehr untergebracht werden können. Deshalb sind herkömmliche Großstaubsauganlagen auf zwei oder mehrere Geräte verteilt, die zusammengekoppelt werden. Das Saugergebnis ist trotzdem bei allen derartigen bisher bekannten Großanlagen wenig zufriedenstellend.The invention relates to a method for removing dust and dirt particles from large surfaces by moving a suction pipe over the surface, the mouth opening of which is spaced from the surface, preferably essentially parallel to it. The suction pipe is connected to a suction fan. When cleaning large areas, e.g. Roads, slopes of airfields and the like the suction pipe (the suction head) must be arranged at a relatively large distance from the surface to be cleaned for geometric and spatial reasons. The flow velocity of the suction air results from the air volume that has passed through and the area perpendicular to the direction of flow between the suction head and the area to be cleaned. The construction-related distances between the suction basket and the surface of the floor mean that, in order to achieve the required flow speed, such large volumes of air have to be moved that the system components required for this, such as vehicle drive, blower, blower compressor, coarse separator, dust filter etc., are no longer accommodated in a single mobile device can be. That is why conventional large-scale vacuum systems are divided between two or more devices that are coupled together. The suction result is nevertheless unsatisfactory in all such large systems known to date.

Die Erfindung behebt diesen Mangel dadurch, daß bei einem Verfahren der eingangs erwähnten Art, erfindungsgemäß vor, gegebenenfalls auch hinter der Einmündungsöffnung des Saugrohres, eine den Saugstrom gegen die zu reinigende Fläche lenkende Wirbelwalze aus mindestens zwei mit unterschiedlichen Geschwindigkeiten unter einem spitzen Winkel zusammengeführten Luftströmen gebildet wird. Durch die erfindungsgemäße Verfahrensführung wird die an sich relativ langsam in den zwischen Saugkorb und der zu reinigenden Fläche gebildeten Raum einströmende Luft durch aerodynamische Effekte so vom Saugkorb gegen die zu reinigende Fläche abgelenkt, daß eine wesentliche Erhöhung der Strömungsgeschwindigkeit in Nähe der zu reinigenden Fläche erzielt wird, wodurch der Saugeffekt und die Saugleistung und damit der Reinigungseffekt wesentlich verbessert werden.The invention remedies this deficiency in that, in a method of the type mentioned at the outset, according to the invention, in front of, possibly also behind the mouth of the suction pipe, a swirl roller guiding the suction flow against the surface to be cleaned is formed from at least two air flows brought together at different speeds at an acute angle becomes. Due to the method according to the invention, the air flowing in relatively slowly into the space formed between the suction basket and the surface to be cleaned is deflected by aerodynamic effects from the suction basket against the surface to be cleaned such that a substantial increase in the flow velocity in the vicinity of the surface to be cleaned is achieved, whereby the suction effect and the suction power and thus the cleaning effect are significantly improved.

Zur Durchführung des erfindungsgemäßen Verfahrens erweist sich eine Vorrichtung als besonders geeignet, bei der von mindestens einer der längeren Seiten der im wesentlichen rechteckigen Einmündungsöffnung des Saugrohres ein Leitblech absteht, dessen Unterseite bevorzugt konkav gewölbt ist. Die Anordnung des Leitbleches ergibt eine günstige Luftführung im Bereich der Einmündungsöffnung des Saugrohres. Ist das Leitblech konkav gewölbt, wird eine Anpassung des Leitbleches an die Form der unter dem Leitblech gebildeten Wirbelwalze erzielt.A device has proven particularly suitable for carrying out the method according to the invention, in which a baffle protrudes from at least one of the longer sides of the substantially rectangular mouth opening of the suction pipe, the underside of which is preferably concave. The arrangement of the guide plate results in a favorable air flow in the area of the mouth of the suction pipe. If the guide plate is concavely curved, the guide plate is adapted to the shape of the vortex roller formed under the guide plate.

In besonderer Weiterbildung der erfindungsgemäßen Vorrichtung kann vorgesehen werden, daß zur Erzeugung zweier unterschiedliche Geschwindigkeit aufweisender Luftströme vor und im Abstand von dem freien Rand des Leitbleches bzw. der längeren Seite der Einmündungsöffnung ein Strömungsteiler angeordnet ist, der gegebenenfalls als Flügel mit sich bevorzugt parallel zur längeren Seite der rechteckigen Einmündungsöffnung erstreckender Kante ausgebildet ist. Die Anordnung des Strömungsteilers erlaubt die Erzeugung von zwei Luftströmungen mit unterschiedlicher Geschwindigkeit, so daß durch Scherwirkung im Bereich des Zusammentreffens der beiden Luftströme sich eine bezüglich des Saugkopfes stationäre Wirbelwalze ausbildet. Diese Wirbelwalze lenkt den überwiegenden Teil der zur Einströmöffnung des Saugrohres fließenden Luft gegen die zu reinigende Fläche ab, die den relativ niederen Spalt zwischen dem Umfang der Wirbelwalze und der zu reinigenden Fläche durchströmen muß und dabei eine hohe Strömungsgeschwindigkeit erreicht, was dem Lösen von Schmutzpartikeln von der zu reinigenden Fläche förderlich ist. Ist der Strömungsteiler als Flügel (mit Tragflächenprofil) ausgebildet, begünstigt dies aus aerodynamischen Gründen die Strömung.In a special development of the device according to the invention it can be provided that a flow divider is arranged in front of and at a distance from the free edge of the guide plate or the longer side of the mouth opening, which optionally as a wing with itself preferably parallel to the longer one, for generating two different air currents Side of the rectangular mouth opening extending edge is formed. The arrangement of the flow divider allows the generation of two air flows at different speeds, so that a shear effect in the area where the two air flows meet forms a vortex roller that is stationary with respect to the suction head. This vortex roller deflects the major part of the air flowing to the inlet opening of the suction pipe against the surface to be cleaned, which must flow through the relatively low gap between the circumference of the vortex roller and the surface to be cleaned and at the same time achieves a high flow velocity, which releases dirt particles from the surface to be cleaned is beneficial. If the flow divider is designed as a wing (with wing profile), this favors the flow for aerodynamic reasons.

Die Wirbelwalze kann in besonderer Ausgestaltung der Erfindung auch durch vor der Einmündungsöffnung des Saugrohres angeordnete, mit Druckluft beaufschlagte Blasdüsen erzielt werden, deren Achsen bevorzugt parallel zueinander und unter spitzem Winkel zur Ebene der Einmündungsöffnung verlaufen. Die Blasdüsen können dabei auch am Strömungsteiler befestigt sein, in welchem Fall sie die Wirkung des Strömungsteilers noch verstärken. Allerdings kann die Wirbelwalze auch durch alleinigen Einsatz der Blasdüsen, ohne Verwendung des Strömungsteilers, erzielt werden.In a special embodiment of the invention, the vortex roller can also be achieved by blowing nozzles, which are arranged in front of the mouth of the suction pipe and are pressurized with compressed air, the axes of which preferably run parallel to one another and at an acute angle to the plane of the mouth. The blow nozzles can also be attached to the flow divider, in which case they have the effect of the flow divider. However, the vortex roll can also be achieved by using the blow nozzles alone, without using the flow divider.

Die Erfindung wird nachstehend anhand der Zeichnung näher erläutert, die ein Ausführungsbeispiel einer zur Ausübung des erfindungsgemäßen Verfahrens besonders geeigneten Vorrichtung zeigt. In den
   Fig. 1 und 2 ist die Vorrichtung in schaubildlicher Darstellung wiedergegeben.The invention is explained in more detail below with reference to the drawing, which shows an embodiment of a device which is particularly suitable for carrying out the method according to the invention. In the
1 and 2, the device is shown in a diagrammatic representation.

Mit 1 ist in der Zeichnung das Saugrohr bezeichnet, das an ein in der Zeichnung nicht dargestelltes Sauggebläse angeschlossen ist. Die zu reinigende Fläche ist mit 12 bezeichnet. Die Einmündungsöffnung 9 des Saugrohres 1 ist rechteckig gestaltet, wobei von den längeren Seiten 8 der Einmündungsöffnung 9 Leitbleche 2 abstehen, deren Unterseite 11 konkav gewölbt sein kann. Die Geschwindigkeit v, mit der die Luft zwischen dem Leitblech 2 und der zu reinigenden Fläche 12 strömt, ergibt sich aus dem Durchsatzvolumen V der Luft in der Zeiteinheit durch das Saugrohr 1 und der Fläche F des Strömungsquerschnittes zwischen Leitblech 2 und zu reinigender Fläche 12 aus der Beziehung v = V/2F, wobei F = 1.h ist, mit h als Höhe des Durchströmquerschnittes und 1 als Länge des Durchströmquerschnittes. Es ist ersichtlich, daß bei gleichem Durchsatzvolumen V die Strömungsgeschwindigkeit durch Verkleinern des Strömungsquerschnittes F erhöht werden kann. Da die Länge 1 des Durchströmquerschnittes durch die Vorrichtung vorgegeben ist, kann nur die Höhe h des Strömungsquerschnittes vermindert werden, um den Durchströmquerschnitt zu vermindern.With 1 in the drawing, the suction pipe is designated, which is connected to a suction fan, not shown in the drawing. The area to be cleaned is designated by 12. The mouth opening 9 of the suction pipe 1 is rectangular in shape, with guide plates 2 projecting from the longer sides 8 of the mouth opening 9, the underside 11 of which can be concavely curved. The speed v at which the air flows between the baffle 2 and the surface 12 to be cleaned results from the throughput volume V of the air in the time unit through the suction pipe 1 and the surface F of the flow cross section between the baffle 2 and the surface 12 to be cleaned the relationship v = V / 2F, where F = 1.h, with h as the height of the flow cross-section and 1 as the length of the flow cross-section. It can be seen that, with the same throughput volume V, the flow velocity can be increased by reducing the flow cross section F. Since the length 1 of the flow cross section is predetermined by the device, only the height h of the flow cross section can be reduced in order to reduce the flow cross section.

Die Erfindung weist nun einen Weg, die Höhe h zu vermindern, ohne den Abstand zwischen der zu reinigenden Fläche 12 und der Unterseite 11 des Leitbleches zu verändern. Vorgeschlagen wird hiezu die Bildung einer Wirbelwalze 7 zwischen der zu reinigenden Fläche 12 und der Unterseite 11 der Leitfläche 2, wodurch es gelingt, die Höhe des Strömungsquerschnittes auf den Wert h′ (Fig. 2) zu vermindern, der gleich dem geringsten Abstand des Mantels der Wirbelwalze 7 von der zu reinigenden Fläche 12 ist. Damit ändert sich die Strömungsgeschwindigkeit auf den Wert v′ = V/2.1.h′

Figure imgb0001
. Da, wie bereits erwähnt, h′ wesentlich kleiner als h (Abstand der Leitflächenunterseite 11 von der zu reinigenden Fläche 12) ist, stellt sich eine Strömungsgeschwindigkeit v′ ein, die wesentlich größer ist als die Geschwindigkeit v unter Zugrundelegung eines von der Unterseite 11 der Leitfläche 2 begrenzten Strömungsquerschnittes. Der Strömungsquerschnitt wird somit aerodynamisch vermindert, bei Einhaltung eines wesentlich größeren geometrischen Abstandes zwischen der zu reinigenden Fläche 12 und der Unterseite 11 der Leitbleche 2. Außerdem werden in den Randzonen der stationären Wirbelwalze 7 Turbulenzen erzeugt, die schockartige Druckwellen auf die Schmutzteile auf der zu reinigenden Fläche 12 ausüben, wodurch die Schmutzteile leichter von der zu reinigenden Fläche 12 abgelöst werden.The invention now has a way of reducing the height h without changing the distance between the surface 12 to be cleaned and the underside 11 of the guide plate. It is proposed to form a vortex roller 7 between the surface to be cleaned 12 and the underside 11 of the guide surface 2, whereby it is possible to reduce the height of the flow cross section to the value h '(Fig. 2), which is equal to the smallest distance between the jacket the whirling roller 7 is from the surface 12 to be cleaned. The flow velocity thus changes to the value v ′ = V / 2.1.h ′
Figure imgb0001
 . Since, as already mentioned, h ′ is significantly smaller than h (distance between the underside of the guide surface 11 of the surface to be cleaned 12), a flow velocity v 'occurs which is substantially greater than the velocity v on the basis of a flow cross-section limited by the underside 11 of the guide surface 2. The flow cross-section is thus reduced aerodynamically, while maintaining a substantially larger geometric distance between the surface 12 to be cleaned and the underside 11 of the guide plates 2. In addition, turbulence is generated in the edge zones of the stationary vortex roller 7, the shock-like pressure waves on the dirt parts on the surface to be cleaned Exercise surface 12, whereby the dirt particles are more easily detached from the surface 12 to be cleaned.

Die Wirbelwalze 7 wird durch Zusammenführen von mindestens zwei Luftströmen 5 und 6 gebildet, die mit unterschiedlichen Geschwindigkeiten fließen, wie dies aus Fig. 2 ersichtlich ist.The vortex roller 7 is formed by bringing together at least two air streams 5 and 6 which flow at different speeds, as can be seen in FIG. 2.

Zur Erzeugung der beiden Luftströme 5 und 6 können Strömungsteiler 3 vorgesehen sein, die vor und im Abstand vom freien Rand des Leitbleches 2 bzw. der längeren Seite 8 der Einmündungsöffnung 9 angeordnet sind.Der Strömungsteiler 3 kann dabei von einem Tragflächenprofil gebildet werden, dessen Kante sich parallel zur längeren Seite 8 der rechteckigen Einmündungsöffnung 9 erstreckt. Durch Anordnung des Strömungsteiles entsteht zwischen dem freien Ende des Leitbleches 2 und dem diesem Ende benachbarten Strömungsteiler eine Injektorwirkung, wobei zwei Luftströmungen mit unterschiedlicher Geschwindigkeit sich bilden.To generate the two air streams 5 and 6, flow dividers 3 can be provided, which are arranged in front of and at a distance from the free edge of the guide plate 2 or the longer side 8 of the opening 9. The flow divider 3 can be formed by an airfoil profile, the edge of which extends parallel to the longer side 8 of the rectangular opening 9. By arranging the flow part, an injector effect arises between the free end of the guide plate 2 and the flow divider adjacent to this end, two air flows forming at different speeds.

Zur Erzeugung der Wirbelwalze 7 können auch mit Druckluft beaufschlagte Blasdüsen 4 vorgesehen werden, deren Achsen bevorzugt parallel zueinander in einer gemeinsamen Ebene liegen und einen spitzen Winkel mit der Ebene einschließen, in der die Einmündungsöffnung 9 des Saugrohres 1 liegt.To generate the vortex roll 7, compressed air can also be provided with blowing nozzles 4, the axes of which preferably lie parallel to one another in a common plane and enclose an acute angle with the plane in which the opening 9 of the suction pipe 1 lies.

Die Blasdüsen 4 können auch am Strömungsteiler 3 befestigt werden. Ist der Strömungsteiler 3 als Tragflächenprofil ausgeführt, werden die Blasdüsen 4 bevorzugt entlang der Kante des Tragflächenprofiles, voneinander beabstandet, angeordnet.The blowing nozzles 4 can also be attached to the flow divider 3. If the flow divider 3 is designed as an airfoil profile, the blowing nozzles 4 are preferably arranged along the edge of the airfoil profile, spaced apart from one another.

Zur Versorgung der Blasdüsen 4 kann auch die über das Saugrohr 1 abgesaugte Luft verwendet werden, nachdem diese von den mitgeführten Staub- bzw. Schmutzpartikeln befreit wurde.The air drawn off via the suction pipe 1 can also be used to supply the blowing nozzles 4 after it has been freed from the entrained dust or dirt particles.

Zur Erzeugung der Druckluft für die Blasdüsen 4 kann ein gesonderter Kompressor vorgesehen sein.A separate compressor can be provided to generate the compressed air for the blowing nozzles 4.

Claims (5)

Verfahren zum Entfernen von Staub- und Schmutzpartikel von großen Flächen durch Bewegen eines Saugrohres über die Fläche, dessen Einmündungsöffnung von der Fläche beabstandet bevorzugt im wesentlichen parallel zu dieser, gehalten wird, dadurch gekennzeichnet, daß vor, gegebenenfalls auch hinter der Einmündungsöffnung des Saugrohres, eine den Saugstrom gegen die zu reinigende Fläche lenkende Wirbelwalze aus mindestens zwei mit unterschiedlichen Geschwindigkeiten unter einem spitzen Winkel zusammengeführten Luftströmen gebildet wird.Method for removing dust and dirt particles from large surfaces by moving a suction pipe over the surface, the mouth opening of which is kept spaced from the surface, preferably essentially parallel to it, characterized in that a, in front of, if necessary, also behind the mouth opening of the suction pipe the whirling roller directing the suction flow against the surface to be cleaned is formed from at least two air flows brought together at different speeds at an acute angle. Vorrichtung zur Durchführung eines Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß von mindestens einer der längeren Seiten (8) der im wesentlichen rechteckigen Einmündungsöffnung (9) des Saugrohres (1) ein Leitblech (2) absteht, dessen Unterseite (11) bevorzugt konkav gewölbt ist.Device for carrying out a method according to claim 1, characterized in that a guide plate (2) projects from at least one of the longer sides (8) of the substantially rectangular mouth opening (9) of the suction pipe (1), the underside (11) of which is preferably concave is. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß zur Erzeugung zweier unterschiedliche Geschwindigkeit aufweisender Luftströme (5, 6) vor und im Abstand von dem freien Rand des Leitbleches (2) bzw. der längeren Seite (8) der Einmündungsöffnung (9) ein Strömungsteiler (3) angeordnet ist, der gegebenenfalls als Flügel mit sich bevorzugt parallel zur längeren Seite (8) der rechteckigen Einmündungsöffnung (9) erstreckender Kante (10) ausgebildet ist.Apparatus according to claim 2, characterized in that to produce two air flows (5, 6) having different speeds, in front of and at a distance from the free edge of the guide plate (2) or the longer side (8) of the opening (9), a flow divider ( 3) is arranged, which is optionally designed as a wing with an edge (10) extending preferably parallel to the longer side (8) of the rectangular junction opening (9). Vorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß vor der Einmündungsöffnung (9) mit Druckluft beaufschlagte Blasdüsen (4) angeordnet sind, deren Achsen bevorzugt parallel zueinander und unter spitzem Winkel zur Ebene der Einmündungsöffnung (9) verlaufen.Device according to Claim 2 or 3, characterized in that blowing nozzles (4) to which compressed air is applied are arranged in front of the opening (9), the axes of which preferably run parallel to one another and at an acute angle to the plane of the opening (9). Vorrichtung nach Anspruch 3 und 4, dadurch gekennzeichnet, daß die Blasdüsen (4) am Strömungsteiler (3) befestigt sind.Apparatus according to claims 3 and 4, characterized in that the blowing nozzles (4) are attached to the flow divider (3).
EP92890224A 1991-10-16 1992-10-15 Method and device for removing dust and dirt particles Withdrawn EP0538238A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2059/91 1991-10-16
AT205991A AT395991B (en) 1991-10-16 1991-10-16 METHOD AND DEVICE FOR REMOVING DUST AND DIRTY PARTICLES

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EP0538238A1 true EP0538238A1 (en) 1993-04-21

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AT (1) AT395991B (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19520778C1 (en) * 1995-06-07 1996-07-18 Juergen Pierau Suction arrangement for street cleaner
DE29914329U1 (en) * 1999-08-16 2000-12-28 Faun Viatec Gmbh Suction nozzle
WO2002095136A1 (en) * 2001-05-22 2002-11-28 Patria Vammas Oy Suction nozzle device
WO2005116343A1 (en) * 2004-05-29 2005-12-08 Airmatic Gmbh Method and device for cleaning surfaces
CN107964907A (en) * 2017-12-29 2018-04-27 捷和电机（江西）有限公司 Garbage cleaning device and environment-friendly vehicle
CN109171577A (en) * 2018-10-01 2019-01-11 张丁杰 A kind of administration of health clearing apparatus
CN110004860A (en) * 2019-04-17 2019-07-12 湖北华威奥力环卫汽车有限公司 A kind of vacuum sweeper railway carriage and vacuum sweeper
CN111021297A (en) * 2019-10-14 2020-04-17 长沙中联重科环境产业有限公司 Garbage suction system and sweeping vehicle with same
CN113737696A (en) * 2015-01-08 2021-12-03 斯诺威克公司 Vehicle auxiliary working device, cleaning system and method
CN114197361A (en) * 2021-11-16 2022-03-18 广东盈峰智能环卫科技有限公司 Cleaning device and road surface cleaning machine
CN114857098A (en) * 2022-05-25 2022-08-05 佛山市炬墺特暖通科技有限公司 Roof axial flow fan

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012103381A1 (en) 2012-04-18 2013-10-24 Rodinia Technologies Ltd. Device for cleaning wall or floor surfaces

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH338482A (en) * 1954-12-10 1959-05-31 Asbrink & Co Ab Suction head on waste suction devices, especially for sweeping roads
CH474628A (en) * 1968-05-22 1969-06-30 Rapid Masch Fahrzeuge Ag Suction head for garbage suction by means of air circulation
AU5186273A (en) * 1973-02-06 1974-08-08 Rex Grenfell Lionel Improvements in or relating to road cleaning apparatus
WO1985003498A1 (en) * 1984-02-10 1985-08-15 Stefan Jacek Moszkowski A device for acting on and treating surfaces, for instance for picking up particles, leaves and litter
DE3437990A1 (en) * 1984-10-17 1986-04-24 Ing. Alfred Schmidt Gmbh, 7822 St Blasien SUCTION CHAMBER ON A SWEEPER

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH338482A (en) * 1954-12-10 1959-05-31 Asbrink & Co Ab Suction head on waste suction devices, especially for sweeping roads
CH474628A (en) * 1968-05-22 1969-06-30 Rapid Masch Fahrzeuge Ag Suction head for garbage suction by means of air circulation
AU5186273A (en) * 1973-02-06 1974-08-08 Rex Grenfell Lionel Improvements in or relating to road cleaning apparatus
WO1985003498A1 (en) * 1984-02-10 1985-08-15 Stefan Jacek Moszkowski A device for acting on and treating surfaces, for instance for picking up particles, leaves and litter
DE3437990A1 (en) * 1984-10-17 1986-04-24 Ing. Alfred Schmidt Gmbh, 7822 St Blasien SUCTION CHAMBER ON A SWEEPER

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19520778C1 (en) * 1995-06-07 1996-07-18 Juergen Pierau Suction arrangement for street cleaner
DE29914329U1 (en) * 1999-08-16 2000-12-28 Faun Viatec Gmbh Suction nozzle
WO2002095136A1 (en) * 2001-05-22 2002-11-28 Patria Vammas Oy Suction nozzle device
WO2005116343A1 (en) * 2004-05-29 2005-12-08 Airmatic Gmbh Method and device for cleaning surfaces
CN113737696A (en) * 2015-01-08 2021-12-03 斯诺威克公司 Vehicle auxiliary working device, cleaning system and method
CN107964907A (en) * 2017-12-29 2018-04-27 捷和电机（江西）有限公司 Garbage cleaning device and environment-friendly vehicle
CN107964907B (en) * 2017-12-29 2023-08-18 捷和电机（江西）有限公司 Garbage cleaning device and environment-friendly vehicle
CN109171577B (en) * 2018-10-01 2023-06-13 张丁杰 Cleaning device for sanitation management
CN109171577A (en) * 2018-10-01 2019-01-11 张丁杰 A kind of administration of health clearing apparatus
CN110004860A (en) * 2019-04-17 2019-07-12 湖北华威奥力环卫汽车有限公司 A kind of vacuum sweeper railway carriage and vacuum sweeper
CN111021297A (en) * 2019-10-14 2020-04-17 长沙中联重科环境产业有限公司 Garbage suction system and sweeping vehicle with same
CN114197361A (en) * 2021-11-16 2022-03-18 广东盈峰智能环卫科技有限公司 Cleaning device and road surface cleaning machine
CN114197361B (en) * 2021-11-16 2024-02-13 广东盈峰智能环卫科技有限公司 Cleaning device and road surface cleaner
CN114857098A (en) * 2022-05-25 2022-08-05 佛山市炬墺特暖通科技有限公司 Roof axial flow fan
CN114857098B (en) * 2022-05-25 2023-12-12 佛山市炬墺特暖通科技有限公司 Roof axial fan

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Publication number Publication date
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AT395991B (en) 1993-04-26

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