EP1046434A2 - Pipe cleaning nozzle - Google Patents
Pipe cleaning nozzle Download PDFInfo
- Publication number
- EP1046434A2 EP1046434A2 EP00105678A EP00105678A EP1046434A2 EP 1046434 A2 EP1046434 A2 EP 1046434A2 EP 00105678 A EP00105678 A EP 00105678A EP 00105678 A EP00105678 A EP 00105678A EP 1046434 A2 EP1046434 A2 EP 1046434A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- pipe
- nozzle head
- pipe cleaning
- cleaning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/049—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes, i.e. self-propelled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/049—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes, i.e. self-propelled
- B08B9/0495—Nozzles propelled by fluid jets
Definitions
- the invention relates to a pipe cleaning nozzle for pressure jet cleaning of pipelines, especially the pipelines of Airplane toilet systems.
- DE 197 03 317 A1 describes a pipe cleaning nozzle with a pressure of about 400 bar up to 420 bar. From the outward facing Nozzle orifices occur with high kinetic pressure jets Energy from the deposits adhering to the pipe wall destroy and wash away.
- the pipe cleaning nozzle has one Nozzle head, which is a few millimeters smaller than the free one Pipe cross section, so that the pressure jets with high energy the deposits hit.
- the pressure jets primarily are aligned radially, have a backward axial component that drives the nozzle head in the Pipeline causes. In this way the nozzle head moves through the pipeline to be cleaned, taking the connected High pressure hose for feeding the cleaning liquid pulls along.
- the toilet pipes In airplanes or ships and trains, the toilet pipes, connected to a vacuum source, diameter in the order of 50 mm. These toilet pipes can have a length of 70 to 100 m and pass through it Small radius bends and curvatures. Furthermore subject to such pipes sectionally horizontal and vertical pipe guides. The cleaning work in such pipes is extremely difficult.
- the invention has for its object a pipe cleaning nozzle to create tighter ones especially for cleaning and with tight curvatures of vacuum toilet pipes is suitable.
- the pipe cleaning nozzle according to the invention has a concave Back wall on, in the recessed part of the connecting piece for the high pressure hose. Therefore, the Nozzle head an extremely short overall length. Part of the length of the The connection piece is, as it were, sunk into the nozzle head arranged so that the total length of the nozzle head including Connection piece can be kept short. Because the connector and the nozzle head form a rigid unit the length of this unit has the smallest radius of curvature of the pipe through which the unit will still be sent can.
- the outside diameter of the nozzle head is about twice that large as the outer diameter of the connecting piece, so that on the one hand, the nozzle openings come close to the pipe wall, on the other hand, however, the connecting piece as possible has a small diameter.
- the front wall and / or the rear wall are preferably as Ball cups formed.
- the invention further relates to a method for cleaning pipes using a pipe cleaning nozzle that has a connector and has nozzle openings, wherein the nozzle openings radially outwards with one in the direction of the connecting piece pointing axial component are directed.
- the peculiarity This method consists in that to the pipe part that facing away from the connecting piece, a suction source for suction removed deposits is connected. This means, that the cleaning jets from the nozzle head with backward facing Component leak while the suction source is after aspirated at the front.
- “front” is the direction of movement of the pipe cleaning nozzle referred to during the advance, the Propulsion through the recoil effect of the emerging cleaning jets is produced.
- the mixture of cleaning liquid and deposits are forced in the opposite direction to the direction migrate from releasing.
- a pipe 10 to be cleaned is shown in which it is a vacuum toilet pipe of an aircraft.
- the tube diameter is about 50 mm and the wall thickness is about 0.4 mm.
- the tube is made of titanium.
- a pipe cleaning nozzle 11 is sent through the pipe 10.
- This has a nozzle head 12 in the form of a hollow body, from which a connecting piece 13 protrudes axially.
- a screw sleeve 14 is screwed on, the component a hose coupling, which is at the end of a flexible high pressure hose 15 is connected.
- the high pressure hose 15 has an inner diameter of 6 mm and one Wall thickness of 4 mm. It is a rubber hose with double steel insert.
- the nozzle head 12 has a convex, partially spherical shape Front wall 16 and a concave, also part-spherical Rear wall 17 on. Front wall 16 and rear wall 17 are on Outer edge 18 welded together. To the center of the back wall 17 the connecting piece 13 is welded. Through the connector 13 leads through the liquid channel 19, the leads into the interior 20 of the nozzle head 12.
- the nozzle head 12 thus has a crescent-shaped longitudinal section.
- Nozzle openings 21 At the peripheral edge of the front wall 16 are tubular Nozzle openings 21, which are directed radially outwards, however have an axial, rearward-facing component.
- the Nozzle openings 21 run at an angle of 20 to 25 ° to the radial plane of the nozzle head. Each of them enters High-pressure jet 22, which is directed against the tube wall 10 and deposits adhering there are destroyed and rinsed free.
- FIG. 2 shows, in the deposit 23 by the high pressure jets 22 produces longitudinal furrows 24 which are the residues of deposits Separate 25 from each other.
- the residue 25 are washed under FIG. 1 and finally also dissolve from the pipe wall.
- the high pressure hose 15 is connected to a high pressure pump (not shown) which has a delivery pressure of 400 to 420 bar and a delivery rate of 64 l / min. delivers.
- the nozzle head 12 is made of stainless steel. Nozzle heads of two sizes are available for the pipeline 11 with the dimensions described, namely with an outside diameter of 33 mm and an outside diameter of 43 mm, each with a wall thickness of 2.3 mm. Depending on the thickness of the deposit 23, either one or the other nozzle head is used.
- the nozzle head 12 has 8 to 24 circumferentially distributed nozzle openings, the total cross section of which is 6 to 7 mm 2 .
- the overall length of the nozzle head 12 and the connecting piece 13 existing pipe cleaning nozzle is a maximum of about as large as the outside diameter of the nozzle head.
- Fig. 3 shows the pipe cleaning nozzle described above during the cleaning process with vacuum suction.
- a suction source is connected to that pipe part 10a which faces away from the connecting piece 13, so that the suction takes place in the direction of arrow 30.
- the high pressure jets 22 are directed axially backwards (to the right) and wash the deposits 23.
- the mixture of cleaning water and deposits is forced by the suction to flow out in the opposite direction, namely to the front, to a collecting tank. In this way it is also prevented that the contaminants have to flow through the already cleaned pipe section.
- the vacuum pump delivers a negative pressure of 0.1 to 0.3 bar with a delivery rate of 15 m 3 / h.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
Description
Die Erfindung betrifft eine Rohrreinigungsdüse zur Druckstrahlreinigung von Rohrleitungen, insbesondere der Rohrleitungen von Toilettensystemen in Flugzeugen.The invention relates to a pipe cleaning nozzle for pressure jet cleaning of pipelines, especially the pipelines of Airplane toilet systems.
In Abwasser-Rohrleitungen bilden sich Verunreinigungen und Ablagerungen von Urinstein, die die Funktion der Toilettenanlage erheblich beeinträchtigen. Daher müssen solche Rohrleitungen in gewissen Zeitabständen gereinigt werden. DE 197 03 317 A1 beschreibt eine Rohrreinigungsdüse, die mit Druck von etwa 400 bar bis 420 bar beaufschlagt wird. Aus den nach außen gerichteten Düsenöffnungen treten Druckstrahlen mit hoher kinetischer Energie aus, die die an der Rohrwand haftenden Ablagerungen zerstören und fortspülen. Die Rohrreinigungsdüse weist einen Düsenkopf auf, der einige Millimeter kleiner ist als der freie Rohrquerschnitt, so daß die Druckstrahlen mit hoher Energie auf die Ablagerungen auftreffen. Die Druckstrahlen, die vornehmlich radial ausgerichtet sind, haben eine rückwärts gerichtete axiale Komponente, die den Vortrieb des Düsenkopfes in der Rohrleitung bewirkt. Auf diese Weise bewegt sich der Düsenkopf durch die zu reinigende Rohrleitung, wobei er den angeschlossenen Hochdruckschlauch zur Zuführung der Reinigungsflüssigkeit mitzieht.Contamination and deposits form in sewage pipes from urine stone that the function of the toilet facility significantly affect. Therefore, such pipelines must be be cleaned at certain intervals. DE 197 03 317 A1 describes a pipe cleaning nozzle with a pressure of about 400 bar up to 420 bar. From the outward facing Nozzle orifices occur with high kinetic pressure jets Energy from the deposits adhering to the pipe wall destroy and wash away. The pipe cleaning nozzle has one Nozzle head, which is a few millimeters smaller than the free one Pipe cross section, so that the pressure jets with high energy the deposits hit. The pressure jets, primarily are aligned radially, have a backward axial component that drives the nozzle head in the Pipeline causes. In this way the nozzle head moves through the pipeline to be cleaned, taking the connected High pressure hose for feeding the cleaning liquid pulls along.
In Flugzeugen oder Schiffen und Eisenbahnen haben die Toilettenrohre, die an eine Vakuumquelle angeschlossen sind, Durchmesser in der Größenordnung von 50 mm. Diese Toilettenrohre können eine Länge von 70 bis 100 m haben und sie durchlaufen Bogen und Krümmungen von geringem Radius. Ferner unterliegen solche Rohre abschnittsweise horizontalen und vertikalen Rohrführungen. Die Reinigungsarbeiten in derartigen Rohren sind außerordentlich schwierig.In airplanes or ships and trains, the toilet pipes, connected to a vacuum source, diameter in the order of 50 mm. These toilet pipes can have a length of 70 to 100 m and pass through it Small radius bends and curvatures. Furthermore subject to such pipes sectionally horizontal and vertical pipe guides. The cleaning work in such pipes is extremely difficult.
Der Erfindung liegt die Aufgabe zugrunde, eine Rohrreinigungsdüse zu schaffen, die sich insbesondere für die Reinigung enger und mit engen Krümmungen verlegter Vakkum-Toilettenrohre eignet.The invention has for its object a pipe cleaning nozzle to create tighter ones especially for cleaning and with tight curvatures of vacuum toilet pipes is suitable.
Die Lösung dieser Aufgabe erfolgt erfindungsgemäß mit den im Patentanspruch 1 angegebenen Merkmalen.This object is achieved with the im Claim 1 specified features.
Die erfindungsgemäße Rohrreinigungsdüse weist eine konkave Rückwand auf, in deren eingesenktem Teil sich der Anschlußstutzen für den Hochdruckschlauch befindet. Daher hat der Düsenkopf eine extrem kurze Baulänge. Ein Teil der Länge des Anschlußstutzens ist gewissermaßen in dem Düsenkopf versenkt angeordnet, so daß die Gesamtlänge des Düsenkopfes einschließlich Anschlußstutzen kurz gehalten werden kann. Da der Anschlußstutzen und der Düsenkopf eine starre Einheit bilden, bestimmt die Länge dieser Einheit den kleinsten Krümmungsradius des Rohres, durch den die Einheit noch hindurchgeschickt werden kann. Der Außendurchmesser des Düsenkopfes ist etwa doppelt so groß wie der Außendurchmesser des Anschlußstutzens, so daß einerseits die Düsenöffnungen nahe an die Rohrwand heranreichen, andererseits aber der Anschlußstutzen einen möglichst kleinen Durchmesser hat.The pipe cleaning nozzle according to the invention has a concave Back wall on, in the recessed part of the connecting piece for the high pressure hose. Therefore, the Nozzle head an extremely short overall length. Part of the length of the The connection piece is, as it were, sunk into the nozzle head arranged so that the total length of the nozzle head including Connection piece can be kept short. Because the connector and the nozzle head form a rigid unit the length of this unit has the smallest radius of curvature of the pipe through which the unit will still be sent can. The outside diameter of the nozzle head is about twice that large as the outer diameter of the connecting piece, so that on the one hand, the nozzle openings come close to the pipe wall, on the other hand, however, the connecting piece as possible has a small diameter.
Vorzugsweise hat der Düsenkopf eine konvexe Vorderwand. Mit der konvexen Vorderwand und der konkaven Rückwand wird eine Art Pilzkopf gebildet. Im Innern des Düsenkopfes bildet sich der Verteilerraum für die Druckflüssigkeit, während die Düsenöffnungen auf einem Umfangsteil angeordnet sind, der einen relativ großen Durchmesser, bezogen auf den Durchmesser des Anschlußstutzens, hat.The nozzle head preferably has a convex front wall. With the convex front wall and the concave rear wall becomes a kind Mushroom head formed. The inside of the nozzle head forms Distribution space for the hydraulic fluid while the nozzle openings are arranged on a peripheral part of a relative large diameter, based on the diameter of the connecting piece, Has.
Vorzugsweise sind die Vorderwand und/oder die Rückwand als Kugelschalen ausgebildet.The front wall and / or the rear wall are preferably as Ball cups formed.
Die Erfindung betrifft ferner ein Verfahren zur Rohrreinigung unter Verwendung einer Rohrreinigungsdüse, die einen Anschlußstutzen und Düsenöffnungen aufweist, wobei die Düsenöffnungen radial nach außen mit einer in Richtung des Anschlußstutzens weisenden axialen Komponente gerichtet sind. Die Besonderheit dieses Verfahrens besteht darin, daß an dasjenige Rohrteil, das dem Anschlußstutzen abgewandt ist, eine Saugquelle zum Absaugen abgetragener Ablagerungen angeschlossen wird. Dies bedeutet, daß die Reinigungsstrahlen aus dem Düsenkopf mit rückwärtsgerichteter Komponente austreten, während die Saugquelle nach vorne absaugt. Mit "vorne" ist die Bewegungsrichtung der Rohrreinigungsdüse während des Vortriebes bezeichnet, wobei der Vortrieb durch Rückstoßwirkung der austretenden Reinigungsstrahlen erzeugt wird. Das Gemisch aus Reinigungsflüssigkeit und Ablagerungen wird gezwungen, in Gegenrichtung zur Richtung des Ablösens abzuwandern.The invention further relates to a method for cleaning pipes using a pipe cleaning nozzle that has a connector and has nozzle openings, wherein the nozzle openings radially outwards with one in the direction of the connecting piece pointing axial component are directed. The peculiarity This method consists in that to the pipe part that facing away from the connecting piece, a suction source for suction removed deposits is connected. This means, that the cleaning jets from the nozzle head with backward facing Component leak while the suction source is after aspirated at the front. With "front" is the direction of movement of the pipe cleaning nozzle referred to during the advance, the Propulsion through the recoil effect of the emerging cleaning jets is produced. The mixture of cleaning liquid and deposits are forced in the opposite direction to the direction migrate from releasing.
Nachfolgend wird unter Bezugnahme auf die Zeichnungen ein Ausführungsbeispiel der Erfindung näher erläutert. An exemplary embodiment is described below with reference to the drawings the invention explained in more detail.
Es zeigen:
- Fig. 1
- einen Längsschnitt durch eine Rohrleitung mit darin befindlicher Rohrreinigungsdüse,
- Fig. 2
- einen Schnitt entlang der Linie II-II von Fig. 1 und
- Fig. 3
- in gleicher Darstellung wie Fig. 1 die Rohrreinigung mit zusätzlicher Absaugung.
- Fig. 1
- a longitudinal section through a pipeline with a pipe cleaning nozzle located therein,
- Fig. 2
- a section along the line II-II of Fig. 1 and
- Fig. 3
- in the same representation as Fig. 1, the pipe cleaning with additional suction.
In Fig. 1 ist ein zu reinigendes Rohr 10 dargestellt, bei dem
es sich um ein Vakuum-Toilettenrohr eines Flugzeuges handelt.
Der Rohrdurchmesser beträgt etwa 50 mm und die Wandstärke etwa
0,4 mm. Das Rohr besteht aus Titan.In Fig. 1, a
Durch das Rohr 10 wird eine Rohrreinigungsdüse 11 geschickt.
Diese weist einen Düsenkopf 12 in Form eines Hohlkörpers auf,
von dem ein Anschlußstutzen 13 axial absteht. Auf den Anschlußstutzen
13 ist eine Schraubmuffe 14 aufgeschraubt, die Bestandteil
einer Schlauchkupplung ist, welche an das Ende eines
flexiblen Hochdruckschlauchs 15 angeschlossen ist. Der Hochdruckschlauch
15 hat einen Innendurchmesser von 6 mm und eine
Wandstärke von 4 mm. Es handelt sich um einen Gummischlauch mit
zweifacher Stahleinlage.A
Der Düsenkopf 12 weist eine konvex geformte teilkugelförmige
Vorderwand 16 und eine konkav geformte, ebenfalls teilkugelförmige
Rückwand 17 auf. Vorderwand 16 und Rückwand 17 sind am
Außenrand 18 miteinander verschweißt. An das Zentrum der Rückwand
17 ist der Anschlußstutzen 13 angeschweißt. Durch den Anschlußstutzen
13 führt der Flüssigkeitskanal 19 hindurch, der
in den Innenraum 20 des Düsenkopfes 12 hineinführt. Der Düsenkopf
12 hat somit einen sichelförmigen Längsschnitt. The
Am Umfangsrand der Vorderwand 16 befinden sich rohrförmige
Düsenöffnungen 21, die radial nach außen gerichtet sind, jedoch
eine axiale, rückwärtsgerichtete Komponente aufweisen. Die
Düsenöffnungen 21 verlaufen unter einem Winkel von 20 bis 25°
zur Radialebene des Düsenkopfes. Aus ihnen tritt jeweils ein
Hochdruckstrahl 22 aus, der gegen die Rohrwand 10 gerichtet ist
und dort anhaftende Ablagerungen 23 zerstört und freispült.At the peripheral edge of the
Wie Fig. 2 zeigt, werden in der Ablagerung 23 durch die Hochdruckstrahlen
22 längslaufende Furchen 24 erzeugt, die die Ablagerungsreste
25 voneinander trennen. Die Ablagerungsreste 25
werden gemäß Fig. 1 unterspült und lösen sich schließlich ebenfalls
von der Rohrwand.2 shows, in the
Der Hochdruckschlauch 15 ist an eine (nicht dargestellte) Hochdruckpumpe
angeschlossen, die einen Förderdruck von 400 bis 420
bar hat und eine Fördermenge von 64 l/min. liefert. Der Düsenkopf
12 besteht aus Edelstahl. Für die Rohrleitung 11 mit den
beschriebenen Abmessungen sind Düsenköpfe von zwei Größen verfügbar,
nämlich mit einem Außendurchmesser von 33 mm und einem
Außendurchmesser von 43 mm, bei jeweils 2,3 mm Wandstärke. In
Abhängigkeit von der Stärke der Ablagerung 23 wird entweder der
eine oder der andere Düsenkopf benutzt. Der Düsenkopf 12 hat 8
- 24 umfangsmäßig verteilt angeordnete Düsenöffnungen, deren
Gesamtquerschnitt 6 bis 7 mm2 beträgt.The
Die Baulänge der aus dem Düsenkopf 12 und dem Anschlußstutzen
13 bestehenden Rohrreinigungsdüse ist maximal etwa so groß wie
der Außendurchmesser des Düsenkopfes.The overall length of the
Fig. 3 zeigt die zuvor beschriebene Rohrreinigungsdüse während
des Reinigungsvorganges mit Vakuumabsaugung. Eine Saugquelle
ist an dasjenige Rohrteil 10a angeschlossen, das dem Anschlußstutzen
13 abgewandt ist, so daß die Absaugung in Richtung des
Pfeiles 30 erfolgt. Aus Fig. 3 ist erkennbar, daß die Hochdruckstrahlen
22 axial nach hinten (nach rechts) gerichtet sind
und die Ablagerungen 23 unterspülen. Das Gemisch aus Reinigungswasser
und Ablagerungen wird durch die Absaugung gezwungen,
in Gegenrichtung, nämlich nach vorne, zu einem Sammeltank
abzuströmen. Auf diese Weise wird auch verhindert, daß
die Verunreinigungen durch den bereits gereinigten Rohrabschnitt
fließen müssen. Die Vakuumpumpe liefert einen Unterdruck
von 0,1 bis 0,3 bar bei einer Fördermenge von 15 m3/h.Fig. 3 shows the pipe cleaning nozzle described above during the cleaning process with vacuum suction. A suction source is connected to that pipe part 10a which faces away from the connecting
Claims (4)
dadurch gekennzeichnet,
daß der Anschlußstutzen (13) an einer konkaven Rückwand (17) des Düsenkopfes (12) angeordnet ist.Pipe cleaning nozzle for pressure jet cleaning of pipes (10), with a nozzle head (12) which has a connection piece (13),
characterized,
that the connecting piece (13) is arranged on a concave rear wall (17) of the nozzle head (12).
dadurch gekennzeichnet,
daß an dasjenige Rohrteil (10a), das dem Anschlußstutzen (13) abgewandt ist, eine Saugquelle zum Absaugen abgetragener Ablagerungen angeschlossen wird.Process for cleaning pipes using a pipe cleaning nozzle which has a nozzle head (12) with nozzle openings (21) and connecting pieces (13), the nozzle openings (21) being directed radially outward with an axial component pointing in the direction of the connecting piece (13),
characterized,
that a suction source for sucking away worn deposits is connected to the pipe part (10a) which faces away from the connecting piece (13).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19913728 | 1999-03-26 | ||
| DE19913728A DE19913728C1 (en) | 1999-03-26 | 1999-03-26 | Pipe cleaning nozzle |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1046434A2 true EP1046434A2 (en) | 2000-10-25 |
| EP1046434A3 EP1046434A3 (en) | 2001-02-14 |
| EP1046434B1 EP1046434B1 (en) | 2003-12-10 |
Family
ID=7902487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00105678A Expired - Lifetime EP1046434B1 (en) | 1999-03-26 | 2000-03-17 | Pipe cleaning nozzle |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6394112B1 (en) |
| EP (1) | EP1046434B1 (en) |
| DE (2) | DE19913728C1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2830470A1 (en) * | 2002-02-06 | 2003-04-11 | Hydrolog | Machine for cleaning drainage systems has pump vehicles to feed water to cleaning hose and extract soiled water |
| EP1946854A1 (en) * | 2007-01-17 | 2008-07-23 | Airmatic Gesellschaft Für Umwelt Und Technik Mbh | Method and device for cleaning a pipe |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6357459B1 (en) * | 2000-08-04 | 2002-03-19 | Grease Duct Technologies, Llc | Grease exhaust cleaning system |
| JP2003214427A (en) * | 2002-01-21 | 2003-07-30 | Minebea Co Ltd | Cleaning method and cleaning device for fluid dynamic pressure bearing |
| DE10324317A1 (en) * | 2003-05-27 | 2004-12-16 | Alstom Technology Ltd | Device and method for mechanical utility cleaning |
| SE531509C2 (en) * | 2007-08-31 | 2009-05-05 | Bo Larsson Med Bl Consult Bo L | Hydrodynamic nozzle |
| EP2288453B1 (en) * | 2008-05-07 | 2018-11-21 | Hydrascan Limited | Conduit cleaning apparatus |
| US10301804B2 (en) * | 2013-07-12 | 2019-05-28 | Daniel Grenier | Method and system of removing debris from piping in a high-rise building plumbing network |
| WO2015142606A1 (en) * | 2014-03-15 | 2015-09-24 | Northern Divers Usa | Intake pipe cleaning system and method |
| CN106890828B (en) * | 2017-03-29 | 2023-05-30 | 成都理工大学 | Multifunctional pipe inner wall cleaning device and cleaning method thereof |
| CN107866424A (en) * | 2017-12-11 | 2018-04-03 | 北京航天益森风洞工程技术有限公司 | A kind of high-pressure hydraulic washer for inside pipeline |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997049505A1 (en) * | 1996-06-27 | 1997-12-31 | Johan Faxon | Nozzle for interior cleaning and/or painting of pipe lines |
| EP0856364A2 (en) * | 1997-01-30 | 1998-08-05 | Lufthansa Technik AG | Method and device for cleaning ducts |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1587194A (en) * | 1925-07-23 | 1926-06-01 | Sidney C Sladden | Self-propelling hose nozzle |
| US3656694A (en) * | 1970-12-10 | 1972-04-18 | John A Kirschke | Sewer cleaning chemical dispensing nozzles |
| JPS5486818A (en) * | 1977-12-21 | 1979-07-10 | Kankyo Kaihatsu Kk | Method of regenerating water pipe laid and device for painting inside surface of same pipe in said method |
| US4764180A (en) * | 1987-01-22 | 1988-08-16 | The Pullman Peabody Company | Method of manufacturing jet nozzles |
| US4819314A (en) * | 1987-01-22 | 1989-04-11 | The Pullman Peabody Company | Jet nozzles |
| NL8900449A (en) * | 1989-02-23 | 1990-09-17 | Hoogovens Groep Bv | DEVICE FOR INTERNAL CLEANING OF A TUBE. |
| DE4013547A1 (en) * | 1990-04-27 | 1991-10-31 | Abb Patent Gmbh | Cable conduit cleaning system - uses pressurised air hose propelled along cable conduit via discharged air stream |
| US5241723A (en) * | 1991-10-21 | 1993-09-07 | The Babcock & Wilcox Company | Nozzle structure with improved stream coherence |
| DE19516780C1 (en) * | 1995-05-11 | 1996-08-08 | Kurt Hoerger | Hydrodynamic cleaning nozzle for pipes and canals |
-
1999
- 1999-03-26 DE DE19913728A patent/DE19913728C1/en not_active Expired - Fee Related
-
2000
- 2000-03-17 EP EP00105678A patent/EP1046434B1/en not_active Expired - Lifetime
- 2000-03-17 DE DE50004688T patent/DE50004688D1/en not_active Expired - Fee Related
- 2000-03-23 US US09/532,441 patent/US6394112B1/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997049505A1 (en) * | 1996-06-27 | 1997-12-31 | Johan Faxon | Nozzle for interior cleaning and/or painting of pipe lines |
| EP0856364A2 (en) * | 1997-01-30 | 1998-08-05 | Lufthansa Technik AG | Method and device for cleaning ducts |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2830470A1 (en) * | 2002-02-06 | 2003-04-11 | Hydrolog | Machine for cleaning drainage systems has pump vehicles to feed water to cleaning hose and extract soiled water |
| EP1946854A1 (en) * | 2007-01-17 | 2008-07-23 | Airmatic Gesellschaft Für Umwelt Und Technik Mbh | Method and device for cleaning a pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| US6394112B1 (en) | 2002-05-28 |
| EP1046434B1 (en) | 2003-12-10 |
| DE50004688D1 (en) | 2004-01-22 |
| EP1046434A3 (en) | 2001-02-14 |
| DE19913728C1 (en) | 2000-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1046434B1 (en) | Pipe cleaning nozzle | |
| EP0125643A2 (en) | Discharge conduit, especially a gutter or down pipe | |
| DE102007002526A1 (en) | Device for pipe cleaning with high-pressure vacuum technology | |
| DE3803045A1 (en) | METHOD FOR CLEANING THE INSIDE OF A PIPELINE | |
| DE102017100357A1 (en) | CLUTCH ASSEMBLY FOR SCREW COUPLING | |
| DE19700202C2 (en) | Method and device for the mechanical cleaning of well shaft walls, pipelines or gravel layers behind a well shaft wall | |
| DE2906382A1 (en) | Pig for cleaning pipe lines - is driven by reaction force of two jets of cleaning fluid | |
| DE19539806C2 (en) | Method and arrangement for removing hard deposits in pipelines | |
| DE19534804A1 (en) | Pipe line cleaning method | |
| EP0856364A2 (en) | Method and device for cleaning ducts | |
| DE102008036737A1 (en) | Cleaning device for sewer systems, pipelines and the like | |
| DE19701010A1 (en) | Pipeline interior cleaning by pressurised medium | |
| DE102009038733B4 (en) | Method and device for removing production residues from passages in workpieces | |
| DE102010044953A1 (en) | Device for cleaning sewer pipe walls | |
| DE2807121A1 (en) | Cleaning head for pipe and channel walls - has high pressure jets produced by nozzles situated on conical surface of lance | |
| DE202004020627U1 (en) | Inspection device for shafts and pipes esp. house connections to sewage systems has camera in housing with ejection jets radial and angled away from housing for steering | |
| EP0156955B1 (en) | Cleaning device, especially for small tubes | |
| EP0811106B1 (en) | Method of inserting a pipe into the ground | |
| DE3306378A1 (en) | Method and device for cleaning a concrete conveyor line | |
| CH708432A2 (en) | Drain cleaner. | |
| EP1116525A1 (en) | Cleaning lance | |
| DE4013547A1 (en) | Cable conduit cleaning system - uses pressurised air hose propelled along cable conduit via discharged air stream | |
| DE896301C (en) | Tubular air foam generator for fire extinguishing purposes | |
| DE202010012466U1 (en) | Pipe cleaner | |
| DE102010038565A1 (en) | Pipe cleaning nozzle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE FR GB |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| 17P | Request for examination filed |
Effective date: 20010601 |
|
| AKX | Designation fees paid |
Free format text: DE FR GB |
|
| 17Q | First examination report despatched |
Effective date: 20021004 |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REF | Corresponds to: |
Ref document number: 50004688 Country of ref document: DE Date of ref document: 20040122 Kind code of ref document: P |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20040317 |
|
| ET | Fr: translation filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20040913 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20090324 Year of fee payment: 10 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20090525 Year of fee payment: 10 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20090318 Year of fee payment: 10 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20100317 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20101130 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100331 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20101001 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100317 |