EP0629749A2 - Apparatus for cleaning of sewer conduits - Google Patents
Apparatus for cleaning of sewer conduits Download PDFInfo
- Publication number
- EP0629749A2 EP0629749A2 EP94250135A EP94250135A EP0629749A2 EP 0629749 A2 EP0629749 A2 EP 0629749A2 EP 94250135 A EP94250135 A EP 94250135A EP 94250135 A EP94250135 A EP 94250135A EP 0629749 A2 EP0629749 A2 EP 0629749A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- suction
- jet
- pump
- sludge
- 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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
-
- 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
- B08B9/035—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing by suction
-
- 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
Definitions
- the invention relates to a device for cleaning sewers by rinsing by means of water in which rinsing devices and suction devices are used.
- a sludge suction vehicle in which the flushing devices are supplied with flushing water by a high-pressure pump via high-pressure water hoses, which is removed from the water tank.
- a second pump unit is used to extract the dirty water.
- suction water jet pump There is one on the cleaning vehicle for conveying the sludge attached, suction water jet pump provided, the motive water flow is generated by a low pressure water pump.
- a sewer cleaning vehicle which has a water tank, a flushing device and a high-pressure pump for conveying flushing water from the water tank to the flushing device and also a suction unit, a suction line and a suction basket for sucking in dirty water.
- the dirty water is passed through a filter device and converted into process water that is fed to the tank.
- Separate pump units are used both for the implementation of the flushing process by commissioning the flushing device and for the suction of the dirty water by means of a corresponding suction unit, which leads to expensive and complex solutions.
- the efficiency of the pump unit used to draw in the dirty water depends on the suction height to be overcome.
- the impairment of the suction height can lead to the suction flow being cut off and thus to cavitation and thus damage to the pump set.
- the maximum delivery head in suction systems when using a vacuum pump is physically limited to around 8 m, taking into account the atmospheric pressure and the specific weight of the pumped medium.
- the invention has for its object a cost-effective device for cleaning sewers with high operational reliability to create, which is arranged mobile on a suitable vehicle and a largely low-loss water circuit for rinsing and suction of mud, sand, faeces and the like. is guaranteed and is also suitable to convey the sludge up to a sludge tank over a height of at least 15 m.
- a device in which both the cleaning nozzle of the flushing device and the suction head of the suction unit are fed by a common high-pressure water pump, the high-pressure water jet generated by the high-pressure water pump being passed through a three-way valve into a liquid jet fed to the flushing head and into one as driving water for the liquid jet acting as a jet suction device or ejector can be divided.
- the device preferably consists of two modules designed as containers, of which one container is a vehicle attachment and the other container is a trailer attachment, the vehicle attachment for receiving the container for the process water, all units, which are used to rinse the sewer with service water, to suck off the waste water and to process the waste water into service water, and the trailer attachment is provided for receiving the sludge container.
- the functional connection between the vehicle attachment on the one hand and the trailer attachment on the other hand can be established by hoses that can be quickly coupled.
- filtered water with a relatively high degree of purity must be made available in order to ensure the least possible wear on the high-pressure water pump.
- the permissible size of the dirt particles is approx. 100 ⁇ m.
- the device according to the invention is expediently assigned to two mutually independent containers.
- One of the two containers is designed as a vehicle attachment 14, the other container as a trailer attachment 15.
- suitable lifting means both the vehicle attachment 14 and the trailer attachment 15 can be parked at the place of use and put into operation together.
- the preferred embodiment provides for the vehicle attachment 14 to be equipped with a filled water container 1, from which domestic water is sucked at a water pressure of approximately 210 bar by a high pressure pump 2 driven by a diesel unit 3.
- a high pressure pump 2 driven by a diesel unit 3.
- a three-way valve 4 which divides the liquid flow and continues it in two lines. Part of the high pressure water is led to the cleaning nozzle 6 via a hose.
- a driven hose reel 5 ensures that the hose and thus the cleaning nozzle 6 are guided in the sewer.
- the suction head 7 which is designed as a jet suction device or ejector, is arranged, with which the sludge suction is carried out.
- the suction head 7 is connected to the second part of the high-pressure water flow supplied by the high-pressure pump 2, which acts as a motive water flow.
- the motive water flow introduced into the suction head 7 and accelerated by nozzles generates a vacuum in the suction head 7, which sucks in the impurities dissolved by the cleaning nozzle 6 with rinsing water and presses at high pressure through the suction hose 8 into the sludge container 9 located on the trailer attachment 15. Since the ejector is located at the bottom of the suction hose, both the suction properties and the pressure properties of the jet suction device can be used. This means that significantly higher delivery heights can be achieved compared to the purely suction processes.
- the process water is separated from the sludge by a perforated plate 10 and collected in a collecting trough 11.
- the recovered service water is sucked off with a dirty water pump 12 and filtered in a multi-stage water treatment device 13 to a very high degree of purity and returned to the water tank 1.
- the division of the device according to the invention into two containers which can be handled independently of one another, of which one container, in addition to the water container 1 for the used water, all units which serve to rinse the sewer with used water, to extract the dirty water and to process the dirty water into used water, contains and the other container accommodates the sludge container 9 has the advantage that a simple exchange of filled sludge containers 9 with empty sludge containers 9 can be carried out and the device has to accept correspondingly short downtimes.
- the necessary hose connections can be made easily using quick-release couplings.
- FIG. 2 shows details of the water treatment device 13 which is arranged between the sludge tank 9 and the water tank 1.
- the sludge tank 9 is shown reversed from the illustration in FIG. 1, ie the sludge conveyed by the jet suction device via the suction hose 8 enters the sludge tank 9 on the right, in which residues are found settle on the perforated plate 10, while dirty water is pumped out of the sump 11 from the left part of the sludge tank 9 by the dirty water pump 12.
- the dirty water pump 12 conveys the dirty water pre-filtered through the perforated plate 10 via the line 17 into a hydrocyclone 131, in which solid particles are separated from the process water by vortex formation, the specific mass of which is significantly higher than that of water.
- the service water freed from the heavier solid particles flows out of the hydrocyclone 131 at the top and is fed from above into a buffer tank 132, which serves to collect service water bursts and to continuously supply service water to a downstream backwash filter.
- the process water is sucked out of the buffer tank 132 by a sludge pump 133 and fed to a last filter stage, namely the backwash filter 134.
- This filter stage ensures that the dirt particle size in the water tank 1 does not exceed the size of 100 microns.
- the filter effect is achieved by a filter fabric applied to the circumference of a drum. With increasing contamination of the filter surface, the pressure difference between the filter inlet and the filter outlet of the backwash filter 134 increases, which is detected by a sensor 135 and passed on to a controller 16.
- differential pressure sensor 135 If the degree of filter contamination and, accordingly, the differential pressure measured by differential pressure sensor 135 exceeds a preset value, the filter is backwashed and the surface of the filter fabric is freed of dirt particles.
- cleaned water is sucked out of the water tank 1 by a centrifugal pump 136 and fed at a pressure of about 6 bar to a cleaning arm 139, which is arranged in the backwashing filter 134 and rinses the filter fabric.
- the cleaning arm 139 has a nozzle, with which rinses the rinsing water from the filter fabric in the opposite direction to the normal filter flow. In this way, even stubborn dirt particles are removed from the filter fabric and, together with the rinsing water, are flushed back to the sludge tank 9 via the return line 138.
- the cleaning arm 139 is continuously moved in a circular movement along the filter cylinder surface so that the entire tissue surface can be cleaned during one revolution.
- the process water filtering in the backwash filter 134 is not interrupted during the entire flushing phase.
- a level sensor 137 in the water tank 1 ensures that the level in the water tank 1 is measured and the measurement result is transmitted to the controller 16.
- the water treatment is accordingly regulated with the fill level sensor 137.
- the continuous determination of the degree of contamination of the backwash filter 134 makes it possible to carry out the backwash only when this is actually necessary.
- the not inconsiderable amount of water required for backwashing can be adapted to the fluctuating degree of pollution of the water to be cleaned. This represents a decisive advantage in view of the large amount of water required for the jet suction process.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Cleaning In General (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Sewage (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
- Sink And Installation For Waste Water (AREA)
Abstract
Description
Die Erfindung betrifft eine Einrichtung zum Reinigen von Abwasserkanälen durch Spülen mittels Wasser bei der Spüleinrichtungen und Absaugeinrichtungen zu Einsatz kommen.The invention relates to a device for cleaning sewers by rinsing by means of water in which rinsing devices and suction devices are used.
Es sind verschiedene Einrichtungen und Fahrzeuge zur Reinigung von Kanälen bekannt, bei denen das benötigte Spülwasser in einem Wasserbehälter mitgeführt und mittels einer Hochdruckpumpe der Spüleinrichtung zugeführt wird. Ferner ist ein Saugaggregat vorgesehen, das ein Ansaugen von Schmutzwasser und der durch das Spülwasser mehr oder weniger gelösten Feststoffe gewährleistet. Dieses Schmutzwasser wird über vorgeschaltete Filtereinrichtungen in den Behälter in ausreichender Reinheit zurückgeführt. Auf diese Weise ist ein ständiger Flüssigkeitskreislauf gesichert und die Einrichtung deckt ihren Brauchwasserbedarf weitgehend aus dem von ihr mitgeführten Wasservorrat. Damit ist eine weitgehend automom arbeitende Einrichtung gegeben.Various devices and vehicles for cleaning channels are known in which the required rinsing water is carried in a water tank and is fed to the rinsing device by means of a high-pressure pump. Furthermore, a suction unit is provided which ensures that dirty water and the solids more or less dissolved by the rinsing water are sucked in. This dirty water is returned to the tank in sufficient purity via upstream filter devices. In this way, a constant liquid circulation is ensured and the facility largely covers its process water requirements from the water supply it carries with it. This is a largely automomotive facility.
Gemäß DE-AS 26 48 851 und DE-OS 33 23 719 ist ein Schlammsaugewagen bekannt, bei dem die Spüleinrichtungen durch eine Hochdruckpumpe über Hochdruckwasserschläuche mit Spülwasser versorgt werden, das aus dem Wasserbehälter entnommen wird. Ein zweites Pumpenaggregat dient der Absaugung des Schmutzwassers. Für das Fördern des Schlamms ist eine am Reinigungsfahrzeug angebrachte, saugende Wasserstrahlpumpe vorgesehen, deren Treibwasserstrom durch eine Niederdruckwasserpumpe erzeugt wird.According to DE-AS 26 48 851 and DE-OS 33 23 719 a sludge suction vehicle is known in which the flushing devices are supplied with flushing water by a high-pressure pump via high-pressure water hoses, which is removed from the water tank. A second pump unit is used to extract the dirty water. There is one on the cleaning vehicle for conveying the sludge attached, suction water jet pump provided, the motive water flow is generated by a low pressure water pump.
Gemäß DE-AS 23 15 656 ist ein Kanalreinigungsfahrzeug bekannt, das einen Wasserbehälter, eine Spüleinrichtung und eine Hochdruckpumpe zum Fördern von Spülwasser aus dem Wasserbehälter zur Spüleinrichtung und ferner ein Saugaggregat, eine Saugleitung und einen Saugkorb zum Ansaugen von Schmutzwasser besitzt. Das Schmutzwasser wird durch eine Filtereinrichtung geleitet und dabei in Brauchwasser gewandelt, das dem Behälter zugeführt wird.According to DE-AS 23 15 656 a sewer cleaning vehicle is known which has a water tank, a flushing device and a high-pressure pump for conveying flushing water from the water tank to the flushing device and also a suction unit, a suction line and a suction basket for sucking in dirty water. The dirty water is passed through a filter device and converted into process water that is fed to the tank.
Die genannten und weitere nach dem gleichen Prinzip arbeitende Kanalreinigungseinrichtungen haben gemeinsame Nachteile.The mentioned and other sewer cleaning devices working on the same principle have common disadvantages.
Sowohl für die Realisierung des Spülvorganges durch die Inbetriebnahme der Spüleinrichtung als auch für das Ansaugen des Schmutzwassers durch ein entsprechendes Saugaggregat werden jeweils eigene Pumpenaggregate zum Einsatz gebracht, was zu teuren und aufwendigen Lösungen führt.Separate pump units are used both for the implementation of the flushing process by commissioning the flushing device and for the suction of the dirty water by means of a corresponding suction unit, which leads to expensive and complex solutions.
Darüber hinaus ist der Wirkungsgrad des für das Ansaugen des Schmutzwassers eingesetzten Pumpenaggregates von der zu überwindenden Saughöhe abhängig. Je weiter der Saugkopf sich vom Pumpenaggregat entfernt, desto größer sind die Saugverluste, die nur durch eine entsprechende Auslegung der Saugpumpe ausgeglichen werden können. Die Beeinträchtigung der Saughöhe kann zum Abreißen des Saugstromes und damit zu Kavitationserscheinungen und somit zu Beschädigungen des Pumpenaggregates führen. Außerdem ist die maximale Förderhöhe in saugenden Systemen bei Einsatz einer Vakuumpumpe physikalisch unter Berücksichtigung des atmosphärischen Drucks und des spezifischen Gewichts des Fördermediums auf etwa 8 m begrenzt.In addition, the efficiency of the pump unit used to draw in the dirty water depends on the suction height to be overcome. The further the suction head moves away from the pump unit, the greater the suction losses, which can only be compensated for by an appropriate design of the suction pump. The impairment of the suction height can lead to the suction flow being cut off and thus to cavitation and thus damage to the pump set. In addition, the maximum delivery head in suction systems when using a vacuum pump is physically limited to around 8 m, taking into account the atmospheric pressure and the specific weight of the pumped medium.
Der Erfindung liegt die Aufgabe zugrunde, eine kostengünstige Einrichtung zur Reinigung von Abwasserkanälen mit hoher Betriebssicherheit zu schaffen, die mobil auf einem geeigneten Fahrzeug angeordnet ist und einen weitgehend verlustarmen Wasserkreislauf zum Spülen und Absaugen von Schlamm, Sand, Fäkalien u.dgl. gewährleistet und darüber hinaus geeignet ist, den Schlamm über eine Höhe von mindestens 15 m nach oben zu einem Schlammbehälter zu fördern.The invention has for its object a cost-effective device for cleaning sewers with high operational reliability to create, which is arranged mobile on a suitable vehicle and a largely low-loss water circuit for rinsing and suction of mud, sand, faeces and the like. is guaranteed and is also suitable to convey the sludge up to a sludge tank over a height of at least 15 m.
Es ist ferner Aufgabe der Erfindung, das durch den Strahlsauger angesaugte, stark verschmutzte Wasser im Schlammbehälter derart zu reinigen, daß die Hochdruckwasserpumpe kontinuierlich aus dem Wasserbehälter mit Wasser ausreichender Qualität versorgt werden kann.It is also an object of the invention to clean the heavily polluted water in the sludge tank, which is sucked in by the jet suction device, in such a way that the high-pressure water pump can be continuously supplied with water of sufficient quality from the water tank.
Zur Lösung dieser Aufgabe dient eine Einrichtung, bei der sowohl die Reinigungsdüse der Spüleinrichtung als auch der Saugkopf des Saugaggregates von einer gemeinsamen Hochdruckwasserpumpe gespeist werden, wobei der durch die Hochdruckwasserpumpe erzeugte Hochdruckwasserstrahl durch ein Dreiwegeventil in einen dem Spülkopf zugeführten Flüssigkeitsstrahl und in einen als Treibwasser für den als Strahlsauger oder Ejektor ausgebildeten Saugkopf wirkenden Flüssigkeitsstrahl aufteilbar ist.To solve this problem, a device is used in which both the cleaning nozzle of the flushing device and the suction head of the suction unit are fed by a common high-pressure water pump, the high-pressure water jet generated by the high-pressure water pump being passed through a three-way valve into a liquid jet fed to the flushing head and into one as driving water for the liquid jet acting as a jet suction device or ejector can be divided.
Ein weiteres Merkmal der Erfindung besteht darin, daß die Einrichtung vorzugsweise aus zwei als Container ausgebildeten Baugruppen besteht, von denen sich der eine Container als Fahrzeugaufsatz und der andere Container als Anhängeraufsatz darstellt, wobei der Fahrzeugaufsatz zur Aufnahme des Behälters für das Brauchwasser, aller Aggregate, die dem Spülen des Abwasserkanals mit Brauchwasser, dem Absaugen des Schmutzwassers und der Aufbereitung des Schmutzwassers zu Brauchwasser dienen, und der Anhängeraufsatz zur Aufnahme des Schlammbehälters vorgesehen sind. Die Funktionsverbindung zwischen dem Fahrzeugaufsatz einerseits und dem Anhängeraufsatz andererseits ist durch schnell kuppelbare Schläuche herstellbar.Another feature of the invention is that the device preferably consists of two modules designed as containers, of which one container is a vehicle attachment and the other container is a trailer attachment, the vehicle attachment for receiving the container for the process water, all units, which are used to rinse the sewer with service water, to suck off the waste water and to process the waste water into service water, and the trailer attachment is provided for receiving the sludge container. The functional connection between the vehicle attachment on the one hand and the trailer attachment on the other hand can be established by hoses that can be quickly coupled.
Im Hinblick auf die für das beschriebene Kanalreinigungsverfahren notwendige große Spühl-/Saugleistung (1000 1/min bei 210 bar), muß zur Sicherstellung eines möglichst geringen Verschleißes der Hochdruckwasserpumpe gefiltertes Wasser mit einem verhältnismäßig hohem Reinheitsgrad zur Verfügung gestellt werden. Die zulässige Größe der Schmutzpartikel liegt bei ca. 100 µm.In view of the large flushing / suction power required for the sewer cleaning process described (1000 1 / min at 210 bar), filtered water with a relatively high degree of purity must be made available in order to ensure the least possible wear on the high-pressure water pump. The permissible size of the dirt particles is approx. 100 µm.
Aufgrund der großen Saugleistung des Strahlsaugers ist der Anteil von Schwebstoffen und aufgewirbelten Reststoffen im Schlammbehälter relativ hoch.Due to the high suction power of the jet vacuum cleaner, the proportion of suspended matter and whirled up residues in the sludge tank is relatively high.
Es ist zwar bereits bekannt, Hydrozyklone mit unterschiedlichen Vorfilterungen (Lochbleche, Ketten etc.) einzusetzen. Ihr wesentlicher Nachteil besteht jedoch darin, daß nur Feststoffe mit deutlich größerer spezifischer Masse als Wasser separiert werden können. Schwebstoffe sind damit nicht trennbar. Dies ist deswegen von Nachteil, weil besonders bei Hochleistungspumpen ein erheblicher vorzeitiger Verschleiß auftreten kann.It is already known to use hydrocyclones with different pre-filtering (perforated plates, chains, etc.). However, their main disadvantage is that only solids with a significantly greater specific mass than water can be separated. This means that suspended matter cannot be separated. This is disadvantageous because, especially with high-performance pumps, considerable premature wear can occur.
Aus diesem Grunde hat man bereits verschiedene nachgeschaltete Feinfilterstufen eingesetzt. Dabei handelt es sich überwiegend um Trommelfilter mit Abstreifern. Wesentliche Nachteile dieser Feinfilter bestehen darin, daß aufgrund der Oberflächenspannung des Wassers nur Spaltbreiten bis zu etwa 300 µm realisiert werden können. Schmale, aber längliche Schmutzpartikel können durch die Filterspalte gelangen. Und schließlich können mechanische Abstreifvorrichtungen nur Teilchen von der Filteroberfläche entfernen, nicht aber hartnäckigen Schmutz aus den Filterspalten beseitigen.For this reason, various downstream fine filter stages have already been used. These are mostly drum filters with scrapers. The main disadvantages of these fine filters are that, due to the surface tension of the water, only gap widths of up to about 300 µm can be achieved. Narrow, but elongated dirt particles can get through the filter gaps. And finally, mechanical wipers can only remove particles from the filter surface, but not remove stubborn dirt from the filter gaps.
Rückspülfilter als Feinfilter haben sich in vielen Bereichen der Industriereinigung bewährt. Der Einsatz im Rahmen der Wasseraufbereitung auf Kanalreinigungsfahrzeugen ist aus der DE-C-27 36 587 bekannt.Backwash filters as fine filters have proven themselves in many areas of industrial cleaning. The use in the context of water treatment on sewer cleaning vehicles is known from DE-C-27 36 587 .
Die Erfindung wird im folgenden anhand von Figuren näher erläutert; es zeigen:
-
Figur 1 - eine schematische Ansicht des Ausführungsbeispiels; und
-
Figur 2 - Einzelheiten der Wasseraufbereitungseinrichtung von
Figur 1.
- Figure 1
- a schematic view of the embodiment; and
- Figure 2
- Details of the water treatment device of Figure 1.
In den Figuren sind gleiche Teile durchweg mit gleichen Bezugszeichen versehen. Einzelheiten des Bauteils "13" aus Figur 1 sind in Figur 2 mit den Bezugszeichen "131-139" bezeichnet.In the figures, the same parts are provided with the same reference symbols throughout. Details of component "13" from FIG. 1 are designated in FIG. 2 by the reference symbols "131-139".
Die erfindungsgemäße Einrichtung ist gemäß Figur 1 zweckmäßigerweise zwei voneinander unabhängigen Containern zugeordnet. Der eine der beiden Container ist als Fahrzeugaufsatz 14 ausgebildet, der andere Container als Anhängeraufsatz 15. Mit geeigneten Hebemitteln können sowohl der Fahrzeugaufsatz 14 als auch der Anhängeraufsatz 15 am Einsatzort abgestellt und gemeinsam in Betrieb genommen werden.According to FIG. 1, the device according to the invention is expediently assigned to two mutually independent containers. One of the two containers is designed as a
Die bevorzugte Ausführungsform sieht vor, den Fahrzeugaufsatz 14 mit einem gefüllten Wasserbehälter 1 auszustatten, aus dem durch eine durch ein Dieselaggregat 3 angetriebene Hochdruckpumpe 2 Brauchwasser mit einem Wasserdruck von ca. 210 bar gesaugt wird. In der Druckseite der Hochdruckpumpe 2 befindet sich ein Dreiwegeventil 4, das den Flüssigkeitsstrom teilt und ihn in zwei Leitungen weiterführt. Ein Teil des Hochdruckwassers wird über einen Schlauch zur Reinigungsdüse 6 geführt. Eine angetriebene Schlauchtrommel 5 gewährleistet die Führung des Schlauches und damit der Reinigungsdüse 6 im Abwasserkanal.The preferred embodiment provides for the
Der Reinigungsdüse 6 nachlaufend ist der als Strahlsauger oder Ejektor ausgebildete Saugkopf 7 angeordnet, mit dem die Schlammabsaugung vorgenommen wird. Der Saugkopf 7 ist mit dem zweiten Teil des von der Hochdruckpumpe 2 gelieferten Hochdruckwasserstromes, der als Treibwasserstrom wirkt, verbunden. Der in den Saugkopf 7 eingeleitete und durch Düsen beschleunigte Treibwasserstrom erzeugt im Saugkopf 7 einen Unterdruck, der die durch die Reinigungsdüse 6 mit Spülwasser gelösten Verunreinigungen ansaugt und mit hohem Druck durch den Saugschlauch 8 in den auf dem Anhängeraufsatz 15 befindlichen Schlammbehälter 9 drückt. Da sich der Ejektor unten am Saugschlauch befindet, können sowohl die Saugeigenschaften als auch die Drückeigenschaften des Strahlsaugers genutzt werden. Damit können im Vergleich zu den rein saugenden Verfahren erheblich größere Förderhöhen realisiert werden.After the
Durch ein Lochblech 10 wird das Brauchwasser vom Schlamm getrennt und in einer Auffangwanne 11 gesammelt. Das rückgewonnene Brauchwasser wird mit einer Schmutzwasserpumpe 12 abgesaugt und in einer mehrstufigen Wasseraufbereitungseinrichtung 13 auf einen sehr hohen Reinheitsgrad gefiltert und zum Wasserbehälter 1 zurückgeführt.The process water is separated from the sludge by a
Die Aufteilung der erfindungsgemäßen Einrichtung auf zwei unabhängig voneinander handhabbare Container, von denen der eine Container, neben dem Wasserbehälter 1 für das Brauchwasser, alle Aggregate, die dem Spülen des Abwasserkanals mit Brauchwasser, dem Absaugen des Schmutzwassers und der Aufbereitung des Schmutzwassers zu Brauchwasser dienen, beinhaltet und der andere Container den Schlammbehälter 9 aufnimmt, hat den Vorteil, daß ein problemloser Austausch gefüllter Schlammbehältern 9 mit leeren Schlammbehältern 9 vollzogen werden kann und die Einrichtung entsprechend geringe Ausfallzeiten hinnehmen muß. Die notwendigen Schlauchverbindungen lassen sich durch Schnellkupplungen problemlos herstellen.The division of the device according to the invention into two containers which can be handled independently of one another, of which one container, in addition to the
Figur 2 zeigt Einzelheiten der Wasseraufbereitungseinrichtung 13, die zwischen dem Schlammbehälter 9 und dem Wasserbehälter 1 angeordnet ist. In Figur 2 ist der Schlammbehälter 9 gegenüber der Darstellung von Figur 1 seitenverkehrt dargestellt, d.h. der vom Strahlsauger über den Saugschlauch 8 geförderte Schlamm tritt rechts in den Schlammbehälter 9 ein, in dem sich Reststoffe an dem Lochblech 10 absetzen, während Schmutzwasser aus der Auffangwanne 11 vom linken Teil des Schlammbehälters 9 durch die Schmutzwasserpumpe 12 abgepumpt wird. Die Schmutzwasserpumpe 12 fördert das durch das Lochblech 10 vorgefilterte Schmutzwasser über die Leitung 17 in einen Hydrozyklon 131, in dem durch Wirbelbildung Festkörperbestandteile aus dem Brauchwasser getrennt werden, deren spezifische Masse deutlich über der von Wasser liegt. Die Feststoffe sinken nach unten und werden über eine Brauchwasser-Rückflußleitung 138 in den Schlammbehälter 9 zurückgeführt. Das von den schwereren Feststoffteilchen befreite Brauchwasser strömt oben aus dem Hydrozyklon 131 ab und wird von oben in eine Puffertank 132 eingespeist, der dazu dient, Brauchwasserschübe aufzufangen und einem nachgeschaltetem Rückspülfilter kontinuierlich Brauchwasser zuzuleiten. Zu diesem Zweck wird das Brauchwasser von einer Schlammpumpe 133 aus dem Puffertank 132 abgesaugt und einer letzten Filterstufe, nämlich dem Rückspülfilter 134 zugeführt. Mit dieser Filterstufe wird sichergestellt, daß die Schmutzpartikelgröße im Wasserbehälter 1 die Größe von 100 µm nicht überschreitet. Die Filterwirkung wird dabei durch ein am Umfang einer Trommel aufgebrachtes Filtergewebe erziehlt. Mit zunehmender Verschmutzung der Filteroberfläche steigt die Druckdifferenz zwischen dem Filtereingang und dem Filterausgang des Rückspülfilters 134, was mit einem Sensor 135 erfaßt und an eine Steuerung 16 weitergegeben wird. FIG. 2 shows details of the
Übersteigt der Filter-Verschmutzungsgrad und dementsprechend der vom Differenzdrucksensor 135 gemessene Differenzdruck einen voreingestellten Wert, dann wird der Filter rückgespült und damit die Oberfläche des Filtergewebes von Schmutzpartikeln befreit.If the degree of filter contamination and, accordingly, the differential pressure measured by differential pressure sensor 135 exceeds a preset value, the filter is backwashed and the surface of the filter fabric is freed of dirt particles.
Für die Rückspülung wird gereinigtes Wasser von einer Kreiselpumpe 136 aus dem Wasserbehälter 1 gesaugt und mit einem Druck von etwa 6 bar einem Reinigungsarm 139 zugeführt, der im Rückspülfilter 134 angeordnet ist und dessen Filtergewebe freispült. Zu diesem Zweck weist der Reinigungsarm 139 eine Düse auf, mit der das Spülwasser entgegengesetzt zur normalen Filter-Durchflußrichtung aus dem Filtergewebe gestrahlt wird. Auf diese Weise werden selbst hartnäckige Schmutzpartikel wieder aus dem Filtergewebe herausgelöst und zusammen mit dem Spülwasser über die Rückflußleitung 138 zum Schlammbehälter 9 zurückgespült.For the backwashing, cleaned water is sucked out of the
Während der Rüchspülung wird der Reinigungsarm 139 in einer kreisförmigen Bewegung kontinuierlich an der Filter-Zylindermantelfläche entlang bewegt, so daß die gesamte Gewebeoberfläche während einer Umdrehung gereinigt werden kann. Die Brauchwasserfilterung im Rückspülfilter 134 wird während der gesamten Spülphase nicht unterbrochen.During the backflushing, the
Schließlich sorgt noch ein Füllstand-Sensor 137 im Wasserbehälter 1 dafür, daß der Füllstand im Wasserbehälter 1 gemessen und das Meßergebnis an die Steuerung 16 übertragen wird. Mit dem Füllstand-Sensor 137 wird demgemäß auch die Wasseraufbereitung geregelt.Finally, a level sensor 137 in the
Die erfindungsgemäße Wasseraufbereitung gliedert sich somit in drei Stufen:
- Grobfilter (10)
- Hydrozyklon (131)
- Feinfilter (134).
- Coarse filter (10)
- Hydrocyclone (131)
- Fine filter (134).
Durch die kontinuierliche Ermittlung des Verschmutzungsgrades des Rückspülfilters 134 ist es möglich, die Rückspülung nur dann vorzunehmen, wenn dies tatsächlich erforderlich ist. Dadurch kann die für die Rückspülung erforderliche, nicht unerhebliche Wassermenge dem schwankenden Verschmutzungsgrad des zu reinigenden Wassers angepaßt werden. Dies stellt einen entscheidenden Vorteil im Hinblick auf die für das Strahlsauge-Verfahren benötigte große Wassermenge dar.The continuous determination of the degree of contamination of the
Claims (10)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4317409 | 1993-05-18 | ||
| DE4317409A DE4317409A1 (en) | 1993-05-18 | 1993-05-18 | Device for cleaning sewers |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0629749A2 true EP0629749A2 (en) | 1994-12-21 |
| EP0629749A3 EP0629749A3 (en) | 1995-02-15 |
| EP0629749B1 EP0629749B1 (en) | 1997-07-23 |
Family
ID=6488887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94250135A Expired - Lifetime EP0629749B1 (en) | 1993-05-18 | 1994-05-18 | Apparatus for cleaning of sewer conduits |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0629749B1 (en) |
| AT (1) | ATE155846T1 (en) |
| DE (2) | DE4317409A1 (en) |
| ES (1) | ES2108934T3 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2801954A1 (en) * | 1999-12-06 | 2001-06-08 | Rivard Sa | Multi-channel regulator for tank cleaning vehicles comprises casing enclosing distribution chamber connected to pressurized water inlet pipe and communicating with drum supply pipes |
| FR2806938A1 (en) * | 2000-04-04 | 2001-10-05 | Vidange Angevine | Sewer cleaning device comprises suction ejector whose air intake creates vacuum in first tank into which liquid is induced, ejector operated by water jet delivered by water circuit |
| NL1029765C2 (en) * | 2005-08-18 | 2007-02-20 | Gmb Beheer B V | Drain cleaning vehicle, includes suction hose for removing fouling material with cleaning head capable of separating water by centrifugal force |
| AU2006201527B2 (en) * | 2005-04-13 | 2011-06-02 | Clifford John Restarick | Pipe system cleaning apparatus |
| FR3001503A1 (en) * | 2013-01-28 | 2014-08-01 | Assainissement Rationnel Et De Pompage Soc D | Transportable aspiration liquid device for removing aqueous phase contained in tank of compound vacuum truck, has chamber ensuring aspiration of liquid through opening and joint evacuation through outlet with pressurized water |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19700202C2 (en) * | 1997-01-04 | 1999-05-06 | Aquaplus Brunnensanierung H Mu | Method and device for the mechanical cleaning of well shaft walls, pipelines or gravel layers behind a well shaft wall |
| WO2003095754A1 (en) * | 2002-05-07 | 2003-11-20 | Cleanflow Technologies Pty Ltd | Conduit cleaning means |
| DE102007002526A1 (en) * | 2007-01-17 | 2008-07-24 | Airmatic Gesellschaft für Umwelt und Technik mbH | Device for pipe cleaning with high-pressure vacuum technology |
| DE102012008548A1 (en) * | 2012-03-29 | 2013-10-02 | Sew-Eurodrive Gmbh & Co. Kg | Slotted waveguide and cleaning arrangement combined system, has cleaning arrangement comprising two sewer pipes for supplying and removal of medium, respectively, where sewer pipes project into slot of waveguide |
| CN111780463B (en) * | 2020-06-18 | 2021-12-24 | 安徽美博智能科技有限公司 | Air conditioner refrigerant filling device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE686519C (en) * | 1937-01-10 | 1940-01-11 | Georg Neidl Dipl Ing | Tank wagons working with a suction hose to clean gullies |
| US3013665A (en) * | 1959-10-21 | 1961-12-19 | Elgin Sweeper Co | Eductor with auxiliary pump-out arrangement |
| DE2315656B1 (en) * | 1973-03-29 | 1974-05-16 | Woma-Apparatebau Wolfgang Maasberg & Co Gmbh, 4140 Rheinhausen | Cleaning vehicle, in particular sewer cleaning vehicle |
| DE3323719A1 (en) * | 1983-07-01 | 1985-01-17 | Georg Dipl.-Ing.(FH) 8087 Türkenfeld Klaß | MUD SUCTION WAGON |
| EP0506028A2 (en) * | 1991-03-27 | 1992-09-30 | Klass, Georg, Dipl.-Ing. | Cleaning device |
| EP0512392A1 (en) * | 1991-05-02 | 1992-11-11 | Georg Klass | Sludge suction vehicle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1043228B (en) * | 1955-04-04 | 1958-11-06 | Streicher Fa M | Method and device for sucking in sludge, in particular with sludge suction vehicles |
| DE1273441B (en) * | 1963-11-28 | 1968-07-18 | Haller Gmbh Fahrzeugbau | Device for sucking in sludge |
-
1993
- 1993-05-18 DE DE4317409A patent/DE4317409A1/en not_active Ceased
-
1994
- 1994-05-18 ES ES94250135T patent/ES2108934T3/en not_active Expired - Lifetime
- 1994-05-18 AT AT94250135T patent/ATE155846T1/en not_active IP Right Cessation
- 1994-05-18 EP EP94250135A patent/EP0629749B1/en not_active Expired - Lifetime
- 1994-05-18 DE DE59403430T patent/DE59403430D1/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE686519C (en) * | 1937-01-10 | 1940-01-11 | Georg Neidl Dipl Ing | Tank wagons working with a suction hose to clean gullies |
| US3013665A (en) * | 1959-10-21 | 1961-12-19 | Elgin Sweeper Co | Eductor with auxiliary pump-out arrangement |
| DE2315656B1 (en) * | 1973-03-29 | 1974-05-16 | Woma-Apparatebau Wolfgang Maasberg & Co Gmbh, 4140 Rheinhausen | Cleaning vehicle, in particular sewer cleaning vehicle |
| DE3323719A1 (en) * | 1983-07-01 | 1985-01-17 | Georg Dipl.-Ing.(FH) 8087 Türkenfeld Klaß | MUD SUCTION WAGON |
| EP0506028A2 (en) * | 1991-03-27 | 1992-09-30 | Klass, Georg, Dipl.-Ing. | Cleaning device |
| EP0512392A1 (en) * | 1991-05-02 | 1992-11-11 | Georg Klass | Sludge suction vehicle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2801954A1 (en) * | 1999-12-06 | 2001-06-08 | Rivard Sa | Multi-channel regulator for tank cleaning vehicles comprises casing enclosing distribution chamber connected to pressurized water inlet pipe and communicating with drum supply pipes |
| FR2806938A1 (en) * | 2000-04-04 | 2001-10-05 | Vidange Angevine | Sewer cleaning device comprises suction ejector whose air intake creates vacuum in first tank into which liquid is induced, ejector operated by water jet delivered by water circuit |
| AU2006201527B2 (en) * | 2005-04-13 | 2011-06-02 | Clifford John Restarick | Pipe system cleaning apparatus |
| NL1029765C2 (en) * | 2005-08-18 | 2007-02-20 | Gmb Beheer B V | Drain cleaning vehicle, includes suction hose for removing fouling material with cleaning head capable of separating water by centrifugal force |
| FR3001503A1 (en) * | 2013-01-28 | 2014-08-01 | Assainissement Rationnel Et De Pompage Soc D | Transportable aspiration liquid device for removing aqueous phase contained in tank of compound vacuum truck, has chamber ensuring aspiration of liquid through opening and joint evacuation through outlet with pressurized water |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0629749B1 (en) | 1997-07-23 |
| DE59403430D1 (en) | 1997-08-28 |
| EP0629749A3 (en) | 1995-02-15 |
| ATE155846T1 (en) | 1997-08-15 |
| ES2108934T3 (en) | 1998-01-01 |
| DE4317409A1 (en) | 1994-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0782878B1 (en) | Cleaning device | |
| EP0654294B1 (en) | Process and apparatus for the filtration of solid particles from liquids and the backwashing of the filter | |
| DE3538539A1 (en) | Movable device for cleaning roadways in particular | |
| EP0629749B1 (en) | Apparatus for cleaning of sewer conduits | |
| CH697573B1 (en) | Filtering device with rotating washing arrangement. | |
| EP1978158B1 (en) | Vehicle for cleaning streets | |
| DE3042619C2 (en) | Device for sewer and pit cleaning | |
| EP0497732A1 (en) | Process and apparatus for eliminating particules from a gaseous current | |
| EP1677890B1 (en) | Cleaning device for a trash screen, trash screen comprising a cleaning device, and method for cleaning one such trash screen | |
| EP3565927B1 (en) | Cleaning vehicle for tunnels | |
| DE2719599C2 (en) | Vehicle for sewer cleaning and mud transport | |
| WO2008006445A1 (en) | Cleaning device for surfaces | |
| DE3743508C2 (en) | Cleaning device | |
| DE4114384C1 (en) | ||
| EP0265385B1 (en) | Apparatus for cleaning a sieve or a grate in a water cleaning device | |
| EP0432379B1 (en) | Bandfilter device for the purification of processing liquids | |
| DE4110158C2 (en) | Cleaning device | |
| EP0387759B1 (en) | Sewer cleaning vehicle | |
| EP0563754A1 (en) | Purification device | |
| EP0622099A1 (en) | Separating and filtering device for solid/liquid separation, especially with drying aid | |
| DE3406117C2 (en) | ||
| DE4305099C2 (en) | Process for cleaning a filter device and filter device for carrying out the method | |
| DE3808407A1 (en) | Manually actuated suction cleaning apparatus for swimming pools | |
| EP3872264B1 (en) | Mobile filtering device and method for filtering contaminated liquid | |
| DE3042546C1 (en) | Device for sewer and pit cleaning |
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): AT BE DE ES FR GB IT NL SE |
|
| 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 DE ES FR GB IT NL SE |
|
| 17P | Request for examination filed |
Effective date: 19950727 |
|
| 17Q | First examination report despatched |
Effective date: 19950926 |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE DE ES FR GB IT NL SE |
|
| REF | Corresponds to: |
Ref document number: 155846 Country of ref document: AT Date of ref document: 19970815 Kind code of ref document: T |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19970723 |
|
| REF | Corresponds to: |
Ref document number: 59403430 Country of ref document: DE Date of ref document: 19970828 |
|
| ET | Fr: translation filed | ||
| ITF | It: translation for a ep patent filed |
Owner name: ING. A. GIAMBROCONO & C. S.R.L. |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2108934 Country of ref document: ES Kind code of ref document: T3 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19980514 Year of fee payment: 5 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19980518 Year of fee payment: 5 Ref country code: ES Payment date: 19980518 Year of fee payment: 5 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19980520 Year of fee payment: 5 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19980527 Year of fee payment: 5 |
|
| 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 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 19980604 Year of fee payment: 5 |
|
| 26N | No opposition filed | ||
| 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: 19990518 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990518 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990519 Ref country code: ES Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 19990519 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990531 |
|
| BERE | Be: lapsed |
Owner name: HAMMONIA APPARATEBAU KRONKE G.M.B.H. & CO. MASCHI Effective date: 19990531 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19990518 |
|
| EUG | Se: european patent has lapsed |
Ref document number: 94250135.4 |
|
| 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: 20000131 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20000817 Year of fee payment: 7 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20010601 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011201 |
|
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20011201 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050518 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20111128 Year of fee payment: 18 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59403430 Country of ref document: DE Effective date: 20121201 |
|
| 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: 20121201 |