EP0390301B1 - Méthode et dispositif de nettoyage pour la surface intérieure d'un corps creux allongé - Google Patents

Méthode et dispositif de nettoyage pour la surface intérieure d'un corps creux allongé Download PDF

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Publication number
EP0390301B1
EP0390301B1 EP90250083A EP90250083A EP0390301B1 EP 0390301 B1 EP0390301 B1 EP 0390301B1 EP 90250083 A EP90250083 A EP 90250083A EP 90250083 A EP90250083 A EP 90250083A EP 0390301 B1 EP0390301 B1 EP 0390301B1
Authority
EP
European Patent Office
Prior art keywords
hollow body
jet
channel
nozzle
liquid
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.)
Expired - Lifetime
Application number
EP90250083A
Other languages
German (de)
English (en)
Other versions
EP0390301A1 (fr
Inventor
Manfred Müller
Jürgen Ing. Hinz (grad)
Friedrich Steenkamp
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of EP0390301A1 publication Critical patent/EP0390301A1/fr
Application granted granted Critical
Publication of EP0390301B1 publication Critical patent/EP0390301B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
    • B08B9/0433—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided exclusively with fluid jets as cleaning tools
    • 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
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B08B9/0323—Arrangements specially designed for simultaneous and parallel cleaning of a plurality of conduits

Definitions

  • the invention relates to a method for cleaning the inner surface of an elongated hollow body contaminated with particles according to the preamble of the main claim and to an apparatus for carrying out the method.
  • the collected liquid is fed back to the cleaning device by means of a pump arranged in the storage container directly or via a cyclone separator.
  • the proposed device is not suitable for cleaning a hollow body over its entire length, on the other hand, it is very expensive in terms of apparatus and, furthermore, it can only be adapted to different diameters of the hollow bodies to be cleaned by converting them.
  • DE-OS 33 35 467 Another system working with a high-pressure liquid has become known from DE-OS 33 35 467. It consists of a lance displaceable in the longitudinal direction of the bore of a machine part or a pipe, which has a nozzle arrangement at the front end and is connected at the other end to a high-pressure medium connection, to a rotary drive and to a drive for the axial feed.
  • the lance, the rotary drive, the axial drive and the rotary feedthrough form a structural unit that can be arranged on the slide of a machine tool by means of a carrier.
  • This device has the disadvantage that it has to be moved axially for cleaning elongated bores or pipes and thus the entire drive and also the rotating union must also be moved. This requires complex slide guides and cable tractors. In addition, this device can only be adapted in a complex manner to different dimensions and lengths of the hollow bodies to be cleaned.
  • the object of the invention is to provide a method for cleaning the inner surface of elongated hollow bodies which are contaminated with particles, with which the disadvantages described can be avoided and which, with fully automatic operation, permits complete cleaning of the entire inner surface of the hollow body with only little design effort.
  • the previous removal of the dirt particles lying inside the tube is replaced by a compressed air jet by means of a liquid flush.
  • This method has the great advantage that the annoying noise and dust nuisance is eliminated and contamination of the surrounding operating areas is avoided by the controlled removal of the dirt particles.
  • the method is designed such that the sprayed water that flows out of the hollow body is returned to the jet side in a cleaned manner. Complete cleaning of the inner surface is achieved in that the exiting liquid jet is directed in a circular motion at the inner surface of the hollow body.
  • the radius of this circular movement is continuously changed such that the inner surface area at the beginning of the tube is sprayed with a correspondingly large radius and the subsequent inner surface areas continue to be sprayed with an increasingly smaller radius of the rotating liquid jet. So that the undisturbed outflow of the splashing water collecting in the base of the hollow body is ensured, the hollow body is slightly inclined in the longitudinal direction during the rinsing process, this angle of inclination being in the range between 2-4 degrees.
  • the flushing time depends on the dimensions, ie the inside diameter and length of the hollow body, and is between 15 and 30 seconds. It can be set using a time relay that actuates a valve.
  • the device for carrying out the method is characterized by a holder which receives the hollow body and is designed as an elongated, closed channel.
  • the longitudinal extent of this channel is chosen so that it is at least equal to or slightly larger than the longest hollow body to be cleaned.
  • it is arranged on a tilting table mounted in the middle.
  • a lever which is connected at one end to the tilting table and at the other end via a toggle lever to the piston rod of a hydraulic cylinder, while the toggle joint is supported on the foundation.
  • the splash water mixed with dirt particles running out of the hollow body is discharged in a controlled manner via the channel and then runs into a sales basin.
  • the dirt particles are separated from the dirty water by means of a sieve container and the cleaned water is returned to the spraying point by a pump.
  • the water consumption is thus kept low, since only the water drops adhering to the hollow body are discharged.
  • the jet nozzle e.g. B. in the form of a fire engine is mounted with a rear rod-shaped extension of the jet nozzle body on a height and in the axial direction movable table.
  • the spraying device can thus be pushed in front of the open end of the hollow body and the mouth depending on the cross-sectional size of the hollow body appropriate height can be set.
  • the circular movement of the liquid jet is achieved in that the rod-shaped extension is articulated and is connected at the end to a crank mechanism. So that the radius of the circular movement of the liquid jet can be changed during the rinsing process, a nut is fastened on the underside of the bearing, into which a spindle connected to a servomotor engages.
  • the valve is reversed and the channel of the collecting trough is sprayed free by means of the stationary jet nozzle. That from the drip pan run-off water is collected in the sales basin together with the spray water flowing out of the hollow body, cleaned and returned to the jet side.
  • the flushing channel is pivoted on both sides of the tilting table. This makes it possible for the hollow body to be rinsed to roll from the processing machine via an inclined grate to the pivoted channel and after the channel has been pivoted into the central position and after the channel has been inclined in the longitudinal direction, the hollow body is in the rinsing position. After the rinsing process has been completed, the trough is first lowered into the horizontal position and then swiveled to the other side, and the cleaned hollow body can roll to the next processing station.
  • a cantilever arm with a stop is arranged on the movable table of the flushing device so that a different longitudinal position of the hollow bodies which are rolled onto the channel and are to be cleaned can be compensated for in relation to the flushing.
  • This stop extends into the lower region of the end face of the hollow body lying on the channel and with its stop side protrudes somewhat from the mouth of the jet nozzle. This ensures that the mouth of the jet nozzle is always moved to the selected distance from the end face of the hollow body.
  • FIG 1 shows a longitudinal view of the device according to the invention with only one indicated molded part, which is shown in Figure 3 in all details.
  • the pipe 1 to be cleaned is mounted on an elongated closed channel 3 which ends at the level of a settling basin 4.
  • this sedimentation basin 4 there is a sieve container 5 in which the liquid 6 flowing out of the tube 1 and contaminated with particles - here shown symbolically in broken lines - is collected and the particles are separated from the liquid.
  • the representation of the pump for the return of the cleaned liquid has been omitted here.
  • the contaminated liquid 50 flowing out of the collecting trough 7 is also collected in the sieve container 5.
  • the pivotable trough 3 is arranged on a tilting table 8 which is mounted 9 like a seesaw in the middle.
  • a toggle joint 10 which is connected to an actuating cylinder 11.
  • the tilting table 8 and thus the channel 3 lying on it are brought into an inclined position together with the tube 1, so that the liquid injected via the jet nozzle 12 can run out of the tube 1 unhindered.
  • FIG. 2 shows a section along the line AA in FIG. 1.
  • the tubes 1, 2 shown with a solid line are in the jet position, the pivotable channel 3 taking up a central position.
  • the two pipes 1, 2 shown in different dimensions are intended to symbolize the largest 1 or the smallest 2 pipe to be cleaned.
  • the channel 3 is pivoted to the right and then takes the position shown in broken lines 3 ⁇ a. In this position 3 ⁇ , the pipe 1 or 2 can roll off the channel 3 and be fed to the next processing station via the subsequent drain grate 13. After unrolling the pipe 1 or 2, the channel 3 swings over the central position to the left in the dash-dotted position 3 '.
  • the arranged on the left side of the trough 3 stop lug 14 then pivots under the upper edge of the inlet grate 15, so that the next pipe 1 'or 2' shown here in dash-dotted lines can roll onto the trough 3. Then the channel 3 swings back to the right into the middle position and the pipe 1 or 2 is then in the rinsing position.
  • the trough 3 is supported with a sheet metal 18 also arranged on the underside via a joint 20 on the frame structure 19 of the tilting table 8.
  • the collecting trough 7 arranged on the underside of the washing device has a channel 43 in the middle, which is sprayed free after the washing process has ended.
  • the arrangement of the collecting trough 7 ensures that the particles sloshing over the edges of the channel 3 from time to time are also flushed out.
  • FIG. 3 shows in a longitudinal section the details of the spray nozzle block.
  • the spray nozzle 12 here in the form of a conventional fire-fighting sprayer, is flanged to a spray body 21 designed as a feed, which in turn is connected to a rod-shaped extension 22.
  • This extension 22 is supported in a bearing block 24 having a ball joint 23 and is connected at the end to a crank mechanism 25.
  • the crank mechanism 25 By the crank mechanism 25, the spray nozzle 12 set in a circular motion so that the entire inner peripheral surface of the tube 1 is sprayed out.
  • the size of the circular movement is determined by the distance of the bearing block 24 from the crank mechanism 25.
  • This distance can be increased or decreased, shown here by the arrow 47, by means of a nut 26 arranged on the underside of the bearing block 24, into which a spindle 28 driven by an actuator 27 engages.
  • the adjustment of the position of the spray nozzle 12 to the respective diameter of the pipe 1 to be cleaned takes place via a height adjustment of the receiving table 29, shown here by the arrow 46, consisting of three lifting spindles 30, 30 ', 31 and two guide rods 45, 45' and one Adjusting spindle 32, which is connected to a handwheel 33.
  • the receiving table 29 is displaceable in the longitudinal direction, as indicated by the arrow 34.
  • the displacement takes place by means of an actuating cylinder 35, which is connected at the end to a cantilever-like extension 36 of the receiving table 29.
  • a stop 37 is arranged, which extends to the lower end region of the pipe 1 to be cleaned.
  • the coupled displacement 34 of the receiving table 29 and the stop 37 ensures that the distance between the mouth 49 of the spray nozzle 12 and the end face of the tube 1 is always the same.
  • the stop side 48 of the stop 37 always protrudes somewhat from the mouth 49 of the spray nozzle 12.
  • a line 39 branches off from the pressure supply line 38, at the end of which a stationary spray nozzle 40 is arranged, a controllable valve 42 being arranged at the branch point 41.
  • This valve 42 is connected to a time relay, not shown here, with which the duration of the spraying process can be set. After the cleaning of the pipe 1 has ended, the valve 42 switches over to the branching line 39 and the channel 43 of the collecting trough 7 shown in FIG. 2 is sprayed free with the liquid jet emerging from the stationary nozzle 40.
  • Figure 4 shows a section along the line B-B in Figure 3.
  • the sliding guide of the bearing block 24 on the receiving table 29 and on the other hand the sliding guide of the receiving table 29 on the support blocks 44,44 '.
  • two guide rods 45, 45 ' are arranged in addition to the three lifting spindles 30, 30', 31.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Claims (7)

1. Procédé pour nettoyer la surface interne d'un corps creux allongé, encrassé de particules, dans lequel un jet libre, sortant d'une buse, d'un fluide sous pression est dirigé sur la surface interne sous forme d'un mouvement circulaire, et le liquide collecté au fond du corps creux avec les particules sort du corps creux à l'extrémité opposée au côté du jet,
caractérisé en ce que le jet sortant est dirigé sur l'extrémité ouverte du corps creux, incliné en direction longitudinale pendant le processus de nettoyage, sous forme dudit mouvement circulaire, le rayon du mouvement circulaire du jet de liquide, commençant au début du corps creux, diminuant continuellement pendant le processus de nettoyage, et la distance du point de sortie du jet par rapport à l'extrémité ouverte:du corps creux étant réglée à une valeur prédéfinie.
2 - Dispositif pour la mise en oeuvre du procédé selon la revendication 1, comportant une fixation recevant le corps creux et une buse à jet, agencée sur un dispositif de maintien et de guidage déplaçable en hauteur, qui est reliée à un conduit conduisant la pression,
caractérisé en ce que la fixation recevant le corps creux (1,2) est réalisée en tant que goulotte fermée allongée (3), dont l'étendue longitudinale est au moins égale ou supérieure au plus long corps creux (1,2) à nettoyer, et est agencée sur une table basculante (8) montée au milieu, en ce que la buse (12) est reliée à une pièce tubulaire (21), réalisée en tant qu'alimentation, qui, à son tour, est solidaire d'un élément de maintien (22) sous forme de barre, constituant un prolongement arrière, et l'élément de maintien (22) est articulé sur une table (29) réglable en direction axiale, et l'extrémité de l'élément de maintien (22) est reliée à un mécanisme à bielle et manivelle (25), et le palier (24) est agencé, de façon mobile en direction axiale, sur la table ' (29).
3. Dispositif selon la revendication 2,
caractérisé en ce que le palier mobile (24) présente une rotule (23) et un écrou (26) agencé sur le dessous, dans lequel s'engage un axe (28) relié à un moteur (27).
4. Dispositif selon la revendication 2,
caractérisé en ce que la goulotte (3) est articulée en (20) sur la table basculante (8), et peut pivoter, autour de son axe longitudinal, des deux côtés.
5. Dispositif selon la revendication 2,
caractérisé en ce que, à hauteur du sol au-dessous du dispositif de nettoyage, est agencée une cuve de réception (7), qui, en ce qui concerne sa longueur et sa largeur, dépasse l'étendue de la goulotte (3).
6. Dispositif selon les revendications 2 et 5,
caractérisé en ce que le conduit de pression (38) présente, dans la zone de l'agencement de la buse, une dérivation (41) munie d'une soupape commandable (42), et le conduit de dérivation (39) est relié à une buse fixe (40) agencée au fond (43) de la cuve de réception (7).
7. Dispositif selon la revendication 2,
caractérisé en ce que la table mobile (29) présente un bras en porte-à-faux (36) faisant saillie dans la direction du jet, sur lequel est agencée une butée (37) s'étendant jusque dans la zone inférieure de la face frontale du corps creux (1,2), dont le côté de butée (48) proche du corps creux dépasse l'embouchure (49) de la buse (12).
EP90250083A 1989-03-30 1990-03-28 Méthode et dispositif de nettoyage pour la surface intérieure d'un corps creux allongé Expired - Lifetime EP0390301B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3910573A DE3910573A1 (de) 1989-03-30 1989-03-30 Verfahren und vorrichtung zur reinigung der innenflaeche eines langgestreckten hohlkoerpers
DE3910573 1989-03-30

Publications (2)

Publication Number Publication Date
EP0390301A1 EP0390301A1 (fr) 1990-10-03
EP0390301B1 true EP0390301B1 (fr) 1992-04-29

Family

ID=6377618

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90250083A Expired - Lifetime EP0390301B1 (fr) 1989-03-30 1990-03-28 Méthode et dispositif de nettoyage pour la surface intérieure d'un corps creux allongé

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EP (1) EP0390301B1 (fr)
DE (2) DE3910573A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113833100B (zh) * 2021-11-04 2023-12-22 国网山东省电力公司烟台供电公司 一种下水道的自防堵系统
CN114558852B (zh) * 2022-02-25 2022-12-20 湘潭大学 淤塞报废管道高压射流疏通系统
CN115254810B (zh) * 2022-07-27 2023-06-27 杭州金荷水务科技有限公司 一种一体化泵站用油污垃圾超声波破碎装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2781905A (en) * 1955-10-18 1957-02-19 Baldwin Lima Hamilton Corp Tube inspecting machine
US3938535A (en) * 1972-08-07 1976-02-17 Browning-Ferris Industries, Inc. Tube cleaning device
DE2607097C2 (de) * 1976-02-21 1984-09-13 Wolfgang 4224 Hünxe Maasberg Vorrichtung zum Reinigen von Oberflächen, insbesondere Metalloberflächen, Oberflächen von Baukörpern o.dgl.
DE3127259A1 (de) * 1981-07-10 1983-01-27 Erich 4176 Sonsbeck Wallich Geraeuscharme ausblasrinne
DE3335467A1 (de) * 1983-09-30 1985-04-25 Woma-Apparatebau Wolfgang Maasberg & Co Gmbh, 4100 Duisburg Vorrichtung zum entzundern, reinigen od. dgl. von bohrungen, rohren od. dgl.
US4600444A (en) * 1984-05-30 1986-07-15 Miner Robert M Pipe end area cleaning system

Also Published As

Publication number Publication date
DE59000104D1 (de) 1992-06-04
DE3910573A1 (de) 1990-10-04
DE3910573C2 (fr) 1992-02-13
EP0390301A1 (fr) 1990-10-03

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