EP0331012B1 - Dispositif pour l'aspiration et l'évacuation de sédiments fins d'un conteneur d'eau industrielle vers un collecteur de boues - Google Patents

Dispositif pour l'aspiration et l'évacuation de sédiments fins d'un conteneur d'eau industrielle vers un collecteur de boues Download PDF

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Publication number
EP0331012B1
EP0331012B1 EP89103183A EP89103183A EP0331012B1 EP 0331012 B1 EP0331012 B1 EP 0331012B1 EP 89103183 A EP89103183 A EP 89103183A EP 89103183 A EP89103183 A EP 89103183A EP 0331012 B1 EP0331012 B1 EP 0331012B1
Authority
EP
European Patent Office
Prior art keywords
piston
guide ring
container
piston guide
pipe
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
EP89103183A
Other languages
German (de)
English (en)
Other versions
EP0331012A1 (fr
Inventor
Werner Rutz
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.)
Herm J Hellmers GmbH
Original Assignee
Herm J Hellmers GmbH
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Filing date
Publication date
Application filed by Herm J Hellmers GmbH filed Critical Herm J Hellmers GmbH
Publication of EP0331012A1 publication Critical patent/EP0331012A1/fr
Application granted granted Critical
Publication of EP0331012B1 publication Critical patent/EP0331012B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/10—Wheeled apparatus for emptying sewers or cesspools
    • E03F7/103—Wheeled apparatus for emptying sewers or cesspools with a tank featuring one or more partition walls
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/10—Wheeled apparatus for emptying sewers or cesspools

Definitions

  • the invention relates to a device for extracting and removing fine deposits and also those with abrasive grain character from a working water space into a sludge receiving space of a cylindrical container according to the preamble of claim 1, in particular a sewer cleaning device in a sludge suction vehicle working according to the press water method (high pressure flushing).
  • a device for example from DE-OS 3140200.
  • Channels are generally high pressure flushed with significant amounts of water.
  • the water is taken from the working water space of a cylindrical container, which is usually designed as a horizontal axis boiler.
  • the working water space is defined by a piston in the cylindrical Container is axially displaceable, separated from a sludge receiving space.
  • the piston can be non-positively and positively fixed in the cylindrical container, for example via mechanical stops or continuously by means of a pneumatically remotely controllable excess pressure in an inflatable seal against the inner container wall. Constructions of such pistons are known per se (for example DE-PS 2746199, DE-GM 8703019 and CH-PS 446211).
  • the high-pressure flushing creates sludge or dirty water, which is usually treated after being sucked out of the sewer and fed into the sludge holding room and used again as working water.
  • the high-pressure flushing device In order for the high-pressure flushing device to operate properly, it must be ensured that the working water has the greatest possible degree of cleaning.
  • a pipeline runs along the outside of the boiler, from the lower area of the working water area to the upper area of the sludge holding area. If a slide valve in the pipeline is opened, the negative pressure prevailing in the sludge receiving space sucks off working water with contaminants deposited on the floor.
  • Laying a line outside of the tank entails relatively high flow losses in the line and always sucks at a given point in the working water space.
  • the invention is therefore based on the object, the working water space of small deposits and also Keep deposits with abrasive grain character free so that the working water is as grain-free as possible and that the high-pressure flushing device functions properly.
  • the pipeline does not run along the outside of the container, but inside through the piston, preferably in the position according to claim 2.
  • the flow through the pipeline leads to entrainment of the deposits, which then get into the sludge-receiving space.
  • the stop is advantageously realized by locking bolts that can be engaged or disengaged, which can extend radially, through corresponding openings in the cylindrical container, or axially into the container, thereby enabling a gradual axial fixing of the piston.
  • the cams are advantageously designed in a wedge shape to reliably generate the gap when the piston is displaced on one side in the direction of the working water space.
  • a valve which is remotely controlled by compressed air via a flexible line is advantageously used as a shutoff for the pipeline.
  • a small chamber can be formed near the container wall in the lower container part within the piston frame through the connecting parts, which are penetrated by the pipeline, which chamber is completed in the normal shifting operation and only when the cams engage the stop due to the gap formation has an inflow / outflow opening. This has a very positive influence on the flow conditions that influence the suction.
  • the variation in the axial distance of the suction opening of the pipeline from the disk can also increase the suction effect.
  • the piston can also be used to empty the cylindrical container and the volume can be divided in an individual and continuous manner by the piston acting as a partition.
  • the drawing shows a vertical longitudinal section and a partial section through the cylindrical container (1) of a mud suction vehicle of a sewer cleaning system.
  • the cylindrical container (1) contains a working water space (3) and a sludge receiving space (4), which are separated from each other by a longitudinally displaceable and locally lockable piston (2), which consists of a piston structure (5) with a curved disc (6), one Piston guide ring (7) and axial connecting parts (8) between them.
  • the working water chamber (3) is connected to the sludge receiving chamber (4) via a pipe (12) in which a shut-off valve (13) sits and which opens between the curved disc (6) and the piston guide ring (7) in the area of the lowest surface line of the cylinder inner wall , in connection.
  • the pipe (12) sits firmly on the piston, is moved together with it and is passed through the disc (6) so that it creates the aforementioned connection between the rooms (3) and (4) when the shut-off valve (13) is open.
  • the cylindrical container (1) is opened on the corresponding side. If there is a pressure gradient between the two working surfaces of the piston (2), which can be generated in particular by a pump, for example a vacuum pump, but also by opening one side, the pressure is shifted Piston (2) in the direction of the lower pressure, if this allows the frictional relationships between the circumference of an outer ring (9) of the piston (2) and the cylinder inner wall and the piston does not touch a stop (10) in the form of two radial or disengageable locking bolt.
  • a pressure gradient between the two working surfaces of the piston (2) which can be generated in particular by a pump, for example a vacuum pump, but also by opening one side, the pressure is shifted Piston (2) in the direction of the lower pressure, if this allows the frictional relationships between the circumference of an outer ring (9) of the piston (2) and the cylinder inner wall and the piston does not touch a stop (10) in the form of two radial or disengageable locking bolt.
  • an overpressure is generated in a ring-shaped hollow chamber (14) in the outer ring (9), which is remotely controlled from the control room, via a flexible line (15) that corresponds to the circumferential geometry of the outer ring (9) greatly changed that at the same time a secure sealing of the working water space (3), which also includes the space between the curved disc (6) and the piston guide ring (7), against the sludge receiving space (4) and on the other hand an axial displacement of the piston (2) is possible.
  • the hollow chamber (14) can also be pressurized so that the piston (2) is thereby fixed to the inner wall of the cylinder.
  • the cylindrical container (1) can be divided into different partial volumes continuously and individually with the axially displaceable piston (2) with appropriate adjustment of the outer ring (9). However, it is also possible to do this division discontinuously.
  • the piston (2) is then initially fixed with the help of the outer ring (9) and is only released after a certain limit pressure difference between the working water chamber (3) and the sludge receiving chamber (4) is exceeded, in order to then shift in the direction of the lower pressure. After a certain axial displacement, a selected position can be non-positively fixed by pressurizing the hollow chambers (14) of the outer ring (9) via the flexible line (15).
  • the cleaning of the working water chamber (3) is initiated in that the entire piston (2) is axially displaced as a result of a pressure gradient generated by a pump, for example a vacuum pump, thereby reducing the volume of the working water chamber (3) until a selected point further rectified displacement of the piston (2) is prevented by the bolt-shaped stop (10).
  • a pump for example a vacuum pump
  • the suction can be repeated at several other axial positions within the cylindrical container (1).
  • the working water space (3) is cleaned of the smallest deposits and also of deposits with the character of abrasive grain in accordance with the task.
  • the great advantage of the device is that it does not hinder the high-pressure flushing of the sewer cleaning device. Only simple and low-wear machine elements are used.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Cleaning In General (AREA)
  • Sewage (AREA)
  • Treatment Of Sludge (AREA)

Claims (7)

1. Dispositif pour l'aspiration et l'évacuation de sédiments fins hors d'un réservoir d'eau industrielle (3) vers un collecteur de boues (4) d'un récipient cylindrique (1), qu'un piston (2) qui peut s'y déplacer axialement et qui peut être positionné dans le récipient cylindrique (1) par l'influence de la force et bloqué par l'intermédiaire d'une butée (10) divise en réservoir d'eau industrielle (3) et en collecteur de boues (4), entre lesquels se trouve une conduite rigide (12) ouverte des deux côtés et qui peut être obturée, son orifice du côté réservoir d'eau industrielle étant situé à proximité de la paroi interne du récipient dans la partie inférieure de celui-ci, le piston (2) étant constitué par une cage de piston (5) dans laquelle un plateau (6) et un segment de guidage de piston (7) sont reliés entre eux par l'intermédiaire d'éléments de liaison (8) et définissent entre eux un espace intermédiaire, caractérisé en ce que la conduite rigide (12) s'étend à l'intérieur du récipient (1) et passe à travers le plateau (6) du piston (2).
2. Dispositif suivant la revendication 1, caractérisé en ce que la conduite rigide (12) est située à l'endroit du piston (2) et elle débouche, du côté réservoir d'eau industrielle, entre le plateau (6) et le segment de guidage de piston (7) qui glisse dans le réservoir d'eau industrielle, et en ce qu'un orifice (x) de passage est situé au bord inférieur du segment de guidage de piston à proximité de l'orifice de la conduite rigide (12), qui est compris axialement dans la cage de piston (5), du côté réservoir d'eau industrielle, lorsque le segment de guidage de piston (7) est en position d'appui contre la butée (10).
3. Dispositif suivant la revendication 2, caractérisé en ce que le diamètre extérieur du segment de guidage de piston (7) est inférieur d'une valeur x au diamètre intérieur du récipient cylindrique (1) et en ce que le segment de guidage de piston (7) présente, côté butée, des mentonnets (11) qui entrent en prise avec la butée (10) pour lever et pour presser le segment de guidage de piston (7) contre la paroi supérieure du récipient dans la zone supérieure du récipient.
4. Dispositif suivant la revendication 3, caractérisé en ce que la butée (10) se compose d'axes qui sont en saillie radialement ou axialement dans le récipient cylindrique (1).
5. Dispositif suivant la revendication 3 ou 4, caractérisé en ce que les mentonnets (11) sont en forme de coin.
6. Dispositif suivant l'une des revendications 1 à 5, caractérisé en ce qu'une petite chambre, qui renforce l'effet d'aspiration, est formée à l'intérieur de la cage de piston (5) par les éléments de liaison (8), qui sont traversés par la conduite rigide (12), à proximité de la paroi du récipient dans la partie inférieure du récipient.
7. Dispositif suivant l'une des revendications 1 à 6, caractérisé en ce que l'écart axial de l'orifice d'aspiration de la conduite rigide (12) par rapport au segment de guidage de piston (7) est variable.
EP89103183A 1988-03-01 1989-02-23 Dispositif pour l'aspiration et l'évacuation de sédiments fins d'un conteneur d'eau industrielle vers un collecteur de boues Expired - Lifetime EP0331012B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3806545 1988-03-01
DE3806545A DE3806545A1 (de) 1988-03-01 1988-03-01 Vorrichtung zur absaugung und abfuhr feiner ablagerungen aus einem arbeitswasserraum in einen schlammaufnahmeraum

Publications (2)

Publication Number Publication Date
EP0331012A1 EP0331012A1 (fr) 1989-09-06
EP0331012B1 true EP0331012B1 (fr) 1991-12-11

Family

ID=6348521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89103183A Expired - Lifetime EP0331012B1 (fr) 1988-03-01 1989-02-23 Dispositif pour l'aspiration et l'évacuation de sédiments fins d'un conteneur d'eau industrielle vers un collecteur de boues

Country Status (3)

Country Link
EP (1) EP0331012B1 (fr)
DE (2) DE3806545A1 (fr)
DK (1) DK171749B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10025645C2 (de) * 2000-05-24 2002-04-04 Kutschke Fahrzeugbau Gmbh Behälter für ein Reinigungsfahrzeug

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB484716A (en) * 1936-11-13 1938-05-10 Dennis Brothers Ltd Sludge containers, particularly for use with mechanical gulley-emptying apparatus
AT257481B (de) * 1966-02-02 1967-10-10 Josef Kaiser Fahrzeugwerk Behältnis zur Aufnahme von unter Druck stehenden Flüssigkeiten und/oder Gasen
DE2746199C2 (de) * 1977-10-14 1986-09-04 Fa. Friedrich Küller, 5600 Wuppertal Behälter zur Aufnahme von Schlamm o.dgl.
EP0075603A1 (fr) * 1981-09-21 1983-04-06 GABLER GmbH & Co., KG. Dispositif pour le nettoyage de canalisations d'égouts et pour l'aspiration de boues
DE3140200A1 (de) * 1981-10-09 1983-04-28 Herm. J. Hellmers Gmbh, 2000 Hamburg "kanalreinigungsfahrzeug"
DE8703019U1 (fr) * 1987-02-27 1987-05-27 Wiedemann, Karl, 8901 Welden, De

Also Published As

Publication number Publication date
DK171749B1 (da) 1997-05-05
DE3806545C2 (fr) 1991-02-07
DE3806545A1 (de) 1989-09-14
DK92489A (da) 1989-09-02
DE58900544D1 (de) 1992-01-23
DK92489D0 (da) 1989-02-27
EP0331012A1 (fr) 1989-09-06

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