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EP3487743B1 - Greywater treatment device for a rail vehicle - Google Patents

Greywater treatment device for a rail vehicle Download PDF

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Publication number
EP3487743B1
EP3487743B1 EP17768092.3A EP17768092A EP3487743B1 EP 3487743 B1 EP3487743 B1 EP 3487743B1 EP 17768092 A EP17768092 A EP 17768092A EP 3487743 B1 EP3487743 B1 EP 3487743B1
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EP
European Patent Office
Prior art keywords
grey water
treatment device
water container
gray water
filter
Prior art date
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EP17768092.3A
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German (de)
French (fr)
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EP3487743A1 (en
Inventor
Frank Kemmerling
Thomas KÜBECK
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Siemens Mobility GmbH
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Siemens Mobility GmbH
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Priority to PL17768092T priority Critical patent/PL3487743T3/en
Publication of EP3487743A1 publication Critical patent/EP3487743A1/en
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Publication of EP3487743B1 publication Critical patent/EP3487743B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D35/00—Sanitation

Definitions

  • the invention relates to a treatment device for gray water for a rail vehicle, with a gray water tank, a gray water inlet, an outlet for filtered gray water, a filter between the gray water inlet and the outlet for filtered gray water and a level sensor.
  • Such a gray water treatment device is from the DE 10 2013 205 084 B3 known. This is intended for use in a sanitary area of the rail vehicle.
  • the gray water from a hand wash basin can no longer only be drained onto the track or fed to a waste water tank, but it can be collected, processed and made available to a toilet module as rinsing water.
  • the gray water produced in a galley often contains food residues and dissolved fats and therefore cannot be drained off directly onto the tracks. It is therefore usually collected in a gray or waste water container.
  • the gray or waste water tank is cyclically sucked off, for example every 3 days, all the water remains in the gray or waste water tank until then. Special suction devices are required for suction.
  • the invention is based on the object of proposing a treatment device for gray water of a galley which can be operated at low cost.
  • a rail vehicle according to the invention comprises at least one processing device according to the invention.
  • a treatment device for gray water for a rail vehicle according to the invention in turn comprises a gray water tank with at least one gray water inlet, in particular in an inlet area of the gray water tank, at least one outlet for filtered gray water, in particular in an outlet area of the gray water tank, at least one filter between the gray water inlet and the outlet for filtered gray water , in particular between the inlet and the outlet area, and a cleaning opening which can be closed from the outside for manual maintenance of the gray water tank and which is arranged on the bottom, in particular in the inlet area of the gray water tank.
  • the cleaning opening which can be closed from the outside, can also be used to remove sediment separated from the filter from the gray water tank.
  • the cleaning opening can also be freely accessible from the outside.
  • the gray water tank is arranged in the rail vehicle so that the cleaning opening is freely accessible, so that the gray water tank can be cleaned manually.
  • the filter type it can also be designed and arranged to be suitable for manual maintenance of an interior of the gray water container.
  • the treatment device further has an externally operable closure device for closing the closable cleaning opening, which closes the cleaning opening in the bottom of the gray water container in a closed position and opens the cleaning opening in an open position.
  • the closure device is sealed against the gray water container in the closed position.
  • the processing device is suitably designed for use in a galley of a rail vehicle.
  • the galley area of a vehicle is usually referred to as a galley.
  • the processing device is below, for example a sink, a sink and / or a dishwasher or in the underfloor area.
  • the solids level can be monitored to determine when it is necessary to empty the gray water tank.
  • the treatment device can comprise at least one fill level sensor, which is arranged in particular in the inlet area of the gray water tank.
  • the fill level sensor can be designed to detect at least one limit level of solid at least in the inlet area of the gray water container.
  • it can be designed to generate a signal depending on the detected limit or fill level to be output to a vehicle controller of the rail vehicle.
  • reaching the predetermined limit level is signaled to the vehicle control system.
  • the signal from the vehicle control can be transmitted to a shore-side facility such as a workshop or a depot, in particular for planning an emptying of the gray water tank, for example via a dial-up message.
  • the fill level sensor is suitably designed to recognize at least the limit level of gray water with a predetermined solid loading in the gray water tank, in particular in the inlet area of the gray water tank.
  • the degree of solids loading of the greywater or the concentration of solids in the greywater should in particular not exceed 80% in order to recognize this as the solids level when the predetermined limit level is reached.
  • the suction or cleaning interval of the gray water tank can be significantly extended.
  • the filtered gray water can be drained onto the track bed. This means that less volume is retained in the gray water tank.
  • the gray water container comprises a displaceable bottom section as a closure device, which is arranged on the gray water container in such a way that it forms part of the bottom of the gray water container in an inserted position and closes the cleaning opening in the bottom of the gray water container and the cleaning opening in an extended position releases.
  • the extended position corresponds to the open position.
  • the inserted position corresponds to the closed position.
  • the gray water container has guide rails for guiding the displaceable bottom section, which can be arranged, for example, on the side walls of the gray water container.
  • the guide rails serve to guide the displaceable bottom section when the displaceable bottom section is displaced along the guide rails, in particular parallel to the bottom of the greywater tank in the region of the displaceable bottom section.
  • the gray water container has a scraper facing the displaceable bottom section, in particular elastic and prestressed against a surface of the displaceable bottom section facing the interior of the gray water container, which is designed to adhere to the displaceable bottom section, in particular to the inside to strip the surface of the displaceable bottom section facing the gray water tank when the displaceable bottom section moves from the inserted position into the extended position.
  • At least one seal can be provided between the displaceable bottom section and the gray water tank, which is prestressed against both components in the inserted position.
  • An alternative closure device is a flap which is arranged on the gray water container in such a way that in a closed position it forms part of the bottom of the gray water container and closes the cleaning opening and in an opened position releases the cleaning opening.
  • the flap as an alternative to the displaceable bottom section is more difficult to remove buildup due to the scraper, which is not to be provided in the same simple manner. In addition, it requires a comparatively larger space below the gray water tank.
  • the closed position corresponds in turn to the closed position of the closure device, while the open position of the closure device corresponds to the opened position.
  • a collecting container for receiving sediment separated from the filter from the gray water container below the closable cleaning opening. Filtered out sediment is also called filter cake.
  • the gray water tank has at least one cleaning drain in the outlet area.
  • the cleaning drain is further developed for the removal of at least slightly solid-laden gray water from the gray water tank and is arranged in the gray water tank.
  • the bottom of the melt water tank is designed to rise from the inlet area to the outlet area.
  • the cleaning drain is then advantageously arranged at the deepest point of the bottom of the melt water tank in the outlet area.
  • the filter comprises at least two mutually arranged, overlapping in the horizontal direction and vertically spaced from each other, wherein in particular an upper backdrop is arranged on the ceiling and extends in the direction of a bottom of the gray water tank and a lower backdrop is arranged on the bottom and in the direction of the Cover of the gray water tank extends.
  • Filters designed in this way are also referred to as backdrop filters. They have mutually aligned or mutually extending backdrops which have a gap of a predetermined size between the backdrops. There are at least two scenes, further developed exactly two scenes. The gap has its predetermined width in the horizontal direction.
  • the lower backdrop or the lower backdrops can also be designed as movable slides.
  • the outlet for filtered gray water which is arranged in particular in the outlet area, has an opening for the passage of filtered gray water, which is arranged at a distance from the bottom of the gray water container.
  • the opening of the drain is thus raised in relation to the bottom of the gray water tank.
  • the drain has a tube which is guided through the bottom of the gray water tank and protrudes into the gray water tank.
  • the opening of the drain is then the opening of the pipe in the gray water tank.
  • the increased drainage above the floor has the advantage that flowing, treated gray water does not carry any sediment that may have been deposited on the floor.
  • the drain for filtered gray water can also act as an overflow for the gray water tank.
  • the gray water flows freely through the drain, especially onto the track bed.
  • a drain valve is optionally provided downstream of the drain to regulate the flow through the drain.
  • the filter comprises a permeable membrane, in particular a filter screen, for filtering solid particles of a predetermined size from the gray water. Filtering using a permeable membrane is summarized under the term membrane separation process.
  • the filter is used to filter particles from the gray water, which particles are larger than a predetermined minimum size.
  • the filter is suitably designed, for example it is designed as a sieve with a predetermined mesh size for separating solids of a predetermined minimum size from the liquid.
  • Splitting the waste water into a filter cake and a liquid filtrate using a filter medium is also referred to as filtration.
  • the filter medium colloquially also called filter, retains solids from the liquid.
  • the solid-free phase is referred to as the filtrate in the filtration of liquids.
  • the solid remaining on the surface of the filter medium for example a sieve, is, as already stated above, filter cake. If it falls off the filter and collects on the bottom, it is referred to as sediment or simply as a solid.
  • a fresh water inlet for supplying fresh water in particular on the ceiling side, in particular in the outlet area, can be arranged.
  • the fresh water inlet can be used to clean the gray water tank, for example around the sediments when the cleaning outlet on the inlet area side is open and the slider of the gate filter is raised to wash.
  • the fresh water inlet can be designed as a nozzle in order to also clean the side walls of the gray water container and / or the filter.
  • the nozzle can be designed in such a way that it ejects a water jet that strikes the side walls of the gray water container and / or the filter.
  • An advantage of the invention is the simplified cleaning of the gray water tank. Half-full tanks are no longer suctioned off. This significantly reduces the so-called life cycle costs.
  • a treatment device for gray water according to the invention is shown schematically in longitudinal section.
  • a gray water tank 1 comprises a gray water inlet 2 in an inlet area 7, an outlet 3 for filtered gray water in an outlet area 8, a filter 9 for filtering solid matter from the gray water between the gray water inlet 2 and the outlet 3 for filtered gray water, and a fill level sensor 10 in the inlet area 7.
  • the fill level sensor 10 is designed here in the form of a frequency swing fill level sensor as a limit level switch and is arranged at a predetermined height above a floor 15 of the inlet area 7 of the gray water container 1 in order to detect a predetermined limit level of solid matter in the gray water container 1.
  • the height of the predetermined limit level of solid matter in the gray water tank 1 corresponds to the level of the level sensor 10 above the bottom 15 of the gray water tank 1.
  • the solid matter is filtered and retained by the filter 9 from the gray water (filter cake) and is deposited on the floor and then becomes sediment called.
  • the deposited solid is identified here with the reference number 11.
  • the outlet 3 has a tube 16 which is guided through the bottom 15 of the gray water tank 1 and projects into the gray water tank 1. It also serves as an overflow.
  • the drain opening ends above the predetermined limit level of solids in the gray water tank 1.
  • the pipe 16, usually ends above the tracks for a rail vehicle, on which the filtered gray water is drained off. Here it has exit 18.
  • the filtered gray water can also be fed to a gray water consumer, for example a toilet of the rail vehicle, as rinsing water.
  • the pipe 16 downstream of the outlet can have a drain valve 17 for regulating the flow of filtered gray water through the outlet 3.
  • the filter 9 used here is a backdrop filter with a fixed upper backdrop 13, which is firmly connected to the gray water tank 1 and is rigidly arranged in the gray water tank 1 on the ceiling and extends in the direction of the bottom 15 of the gray water tank 1 and with a fixed lower backdrop 12 which here also firmly connected to the gray water tank 1 and rigidly arranged in the bottom of the gray water tank 1 and extending in the direction of the ceiling of the gray water tank 1.
  • the fill level sensor 10 is arranged at a predetermined height above a floor 15 of the inlet area 7 of the gray water tank 1, which lies below an underside of the upper link 13 and above an upper side of the lower link 12.
  • a permeable membrane 14 for filtering solid particles of a predetermined size from the gray water is additionally arranged above the lower backdrop 12. This is connected here to the top of the lower backdrop 12 and to a ceiling of the gray water tank 1 and also extends over the entire width of the gray water tank 1 into and out of the drawing plane between its side walls.
  • Sediment deposits 11 can be found here both in the inlet area 7 and in the outlet area 8. However, that in the outlet area 8 is significantly lower.
  • the gray water tank 1 here comprises a cleaning drain 5 on the bottom side. If necessary, the cleaning drain 5 in the outlet area 8 can also be dispensed with. In this exemplary embodiment, it ends in a suction line which can be connected to a suction device via a shut-off element 19, for example a ball valve.
  • a cleaning opening 4 is provided in the bottom 15 of the inlet area 7 of the gray water tank 1. It can have a size suitable for manual maintenance and / or manual cleaning, if necessary.
  • a section of the bottom 22 of the gray water tank 1 is designed to be displaceable. In a pushed-in position, this bottom section 22 closes the cleaning opening 4 in the bottom 15 of the gray water tank 1.
  • the bottom section 22 here has a handle-like projection 21 outside of the gray water tank.
  • the displaceable bottom section 22 is guided along laterally arranged guide rails 24. In the inserted position, the displaceable bottom section 22 is sealed against the gray water tank 1.
  • a collecting container 23 for receiving sediment separated from the filter 9.
  • the closable cleaning opening 4 is opened by moving the displaceable bottom section 22 from the pushed-in position into the pushed-out position, the sediment 11 thus simply falls into the collecting container 23.
  • a scraper 20 is arranged on an end wall in the inlet area 7 of the gray water container 1, which is biased against the displaceable bottom section 22 and is thus able to adhere to the displaceable bottom section 22 when the displaceable bottom section 22 moves from the inserted position into the extended position to strip off.
  • a flushing nozzle is arranged as a fresh water inlet 6 for supplying fresh water on the ceiling side in the outlet area 8.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtration Of Liquid (AREA)

Description

Die Erfindung betrifft eine Aufbereitungsvorrichtung für Grauwasser für ein Schienenfahrzeug, mit einem Grauwasserbehälter, einem Grauwasserzulauf, einem Ablauf für gefiltertes Grauwasser, einem Filter zwischen dem Grauwasserzulauf und dem Ablauf für gefiltertes Grauwasser und einem Füllstandsensor.The invention relates to a treatment device for gray water for a rail vehicle, with a gray water tank, a gray water inlet, an outlet for filtered gray water, a filter between the gray water inlet and the outlet for filtered gray water and a level sensor.

Eine derartige Grauwasseraufbereitungsvorrichtung ist aus der DE 10 2013 205 084 B3 bekannt. Diese ist zur Benutzung in einem Sanitärbereich des Schienenfahrzeugs vorgesehen. Das Grauwasser aus einem Handwaschbecken kann nun nicht mehr nur auf das Gleis abgeleitet oder einem Abwassertank zugeführt werden, sondern es kann aufgefangen, aufbereitet und einem WC-Modul als Spülwasser zur Verfügung gestellt werden.Such a gray water treatment device is from the DE 10 2013 205 084 B3 known. This is intended for use in a sanitary area of the rail vehicle. The gray water from a hand wash basin can no longer only be drained onto the track or fed to a waste water tank, but it can be collected, processed and made available to a toilet module as rinsing water.

Das in einer Galley anfallende Grauwasser enthält dagegen oft Speisereste und gelöste Fette und kann daher nicht direkt auf die Gleise abgeleitet werden. Es wird deshalb üblicherweise in einem Grau- oder Abwasserbehälter gesammelt. Der Grau- oder Abwasserbehälter wird zyklisch, beispielsweise alle 3 Tage abgesaugt, das gesamte Wasser verbleibt bis dahin im Grau- oder Abwasserbehälter. Zum Absaugen werden besondere Absaugvorrichtungen benötigt.In contrast, the gray water produced in a galley often contains food residues and dissolved fats and therefore cannot be drained off directly onto the tracks. It is therefore usually collected in a gray or waste water container. The gray or waste water tank is cyclically sucked off, for example every 3 days, all the water remains in the gray or waste water tank until then. Special suction devices are required for suction.

Der Erfindung liegt die Aufgabe zugrunde, eine kostengünstig zu betreibende Aufbereitungsvorrichtung für Grauwasser einer Galley vorzuschlagen.The invention is based on the object of proposing a treatment device for gray water of a galley which can be operated at low cost.

Gelöst wird die Aufgabe durch den Gegenstand des unabhängigen Patentanspruchs 1. Weiterbildungen und Ausgestaltungen der Erfindung finden sich in den Merkmalen der abhängigen Patentansprüche wieder.The object is achieved by the subject matter of independent patent claim 1. Further developments and refinements of the invention can be found in the features of the dependent patent claims.

Ein erfindungsgemäßes Schienenfahrzeug umfasst wenigstens eine erfindungsgemäße Aufbereitungsvorrichtung. Eine erfindungsgemäße Aufbereitungsvorrichtung für Grauwasser für ein Schienenfahrzeug umfasst ihrerseits einen Grauwasserbehälter mit wenigstens einem Grauwasserzulauf, insbesondere in einem Einlassbereich des Grauwasserbehälters, wenigstens einem Ablauf für gefiltertes Grauwasser, insbesondere in einem Auslassbereich des Grauwasserbehälters, wenigstens einem Filter zwischen dem Grauwasserzulauf und dem Ablauf für gefiltertes Grauwasser, insbesondere zwischen dem Ein- und dem Auslassbereich, und einer von außen verschließbaren Reinigungsöffnung zur manuellen Wartung des Grauwasserbehälters, welche, insbesondere im Einlassbereich des Grauwasserbehälters, bodenseitig angeordnet ist. Die von außen verschließbare Reinigungsöffnung kann darüber hinaus zur Abführung von vom Filter abgeschiedenem Sediment aus dem Grauwasserbehälter dienen. Die Reinigungsöffnung kann weitergebildet auch von außen frei zugänglich sein. Dazu ist der Grauwasserbehälter so im Schienenfahrzeug angeordnet, dass die Reinigungsöffnung frei zugänglich ist, so dass der Grauwasserbehälter manuell gereinigt werden kann. Je nach Filtertyp kann sie auch geeignet zur manuellen Wartung eines Innenraums des Grauwasserbehälters ausgebildet und angeordnet sein.A rail vehicle according to the invention comprises at least one processing device according to the invention. A treatment device for gray water for a rail vehicle according to the invention in turn comprises a gray water tank with at least one gray water inlet, in particular in an inlet area of the gray water tank, at least one outlet for filtered gray water, in particular in an outlet area of the gray water tank, at least one filter between the gray water inlet and the outlet for filtered gray water , in particular between the inlet and the outlet area, and a cleaning opening which can be closed from the outside for manual maintenance of the gray water tank and which is arranged on the bottom, in particular in the inlet area of the gray water tank. The cleaning opening, which can be closed from the outside, can also be used to remove sediment separated from the filter from the gray water tank. In a further development, the cleaning opening can also be freely accessible from the outside. For this purpose, the gray water tank is arranged in the rail vehicle so that the cleaning opening is freely accessible, so that the gray water tank can be cleaned manually. Depending on the filter type, it can also be designed and arranged to be suitable for manual maintenance of an interior of the gray water container.

Die Aufbereitungsvorrichtung weist weitergebildet eine von außen betätigbare Verschlussvorrichtung zum Verschluss der verschließbaren Reinigungsöffnung auf, welche in einer geschlossenen Position die Reinigungsöffnung im Boden des Grauwasserbehälters verschließt und in einer geöffneten Position die Reinigungsöffnung frei gibt. Insbesondere ist die Verschlussvorrichtung in der geschlossenen Position gegen den Grauwasserbehälter abgedichtet.The treatment device further has an externally operable closure device for closing the closable cleaning opening, which closes the cleaning opening in the bottom of the gray water container in a closed position and opens the cleaning opening in an open position. In particular, the closure device is sealed against the gray water container in the closed position.

Die Aufbereitungsvorrichtung ist geeignet ausgebildet zum Einsatz in einer Galley eines Schienenfahrzeugs. Als Galley wird üblicherweise der Bordküchenbereich eines Fahrzeugs bezeichnet. Die Aufbereitungsvorrichtung ist beispielsweise unterhalb einer Spüle, eines Waschbeckens und/oder einer Spülmaschine oder im Unterflurbereich angeordnet.The processing device is suitably designed for use in a galley of a rail vehicle. The galley area of a vehicle is usually referred to as a galley. The processing device is below, for example a sink, a sink and / or a dishwasher or in the underfloor area.

Um festzustellen wann eine Entleerung des Grauwasserbehälters erforderlich ist, kann der Füllstand der Feststoffe überwacht werden. Dazu kann die Aufbereitungsvorrichtung wenigstens einen Füllstandsensor umfassen, welcher insbesondere im Einlassbereich des Grauwasserbehälters angeordnet ist. Der Füllstandsensor kann ausgebildet sein, zumindest einen Grenzstand an Feststoff zumindest im Einlassbereich des Grauwasserbehälters zu erkennen. Darüber hinaus kann er ausgebildet sein, ein Signal in Abhängigkeit des erkannten Grenz- oder Füllstands zu erzeugen an eine Fahrzeugsteuerung des Schienenfahrzeugs auszugeben. So wird insbesondere das Erreichen des vorgegebenen Grenzstands an die Fahrzeugsteuerung signalisiert. Das Signal der Fahrzeugsteuerung kann dabei, insbesondere zur Planung einer Entleerung des Grauwasserbehälters, beispielsweise via eine DFÜ-Meldung, an eine landseitige Einrichtung wie eine Werkstatt oder ein Depot übermittelt werden.The solids level can be monitored to determine when it is necessary to empty the gray water tank. For this purpose, the treatment device can comprise at least one fill level sensor, which is arranged in particular in the inlet area of the gray water tank. The fill level sensor can be designed to detect at least one limit level of solid at least in the inlet area of the gray water container. In addition, it can be designed to generate a signal depending on the detected limit or fill level to be output to a vehicle controller of the rail vehicle. In particular, reaching the predetermined limit level is signaled to the vehicle control system. The signal from the vehicle control can be transmitted to a shore-side facility such as a workshop or a depot, in particular for planning an emptying of the gray water tank, for example via a dial-up message.

Insbesondere durch Sedimentation werden die Feststoffe von der flüssigen Phase getrennt und setzten sich als Sediment am Boden ab. Je nach Art der Filterung wird die Ablagerung der herausgefilterten Feststoffpartikel auch als Filterkuchen bezeichnet. Das aufbereitete, gefilterte Grauwasser ist vom Sediment bzw. von den Feststoffpartikeln einer vorgegebenen Mindestgröße befreit. Das zurückbleibende, abgelagerte Sediment kann natürlich noch einen gewissen Anteil an Flüssigkeit umfassen. Daher ist der Füllstandsensor gemäß einer Weiterbildung der Erfindung geeignet ausgebildet, zumindest den Grenzstand an Grauwasser mit einer vorgegebenen Feststoffbeladung im Grauwasserbehälter, insbesondere im Einlassbereich des Grauwasserbehälters, zu erkennen. Der Grad an Feststoffbeladung des Grauwassers bzw. die Konzentration an Feststoff im Grauwasser soll insbesondere 80 % nicht übersteigen, um bei Erreichen des vorgegebenen Grenzstands, diesen als Grenzstand an Feststoff zu erkennen.The solids are separated from the liquid phase in particular by sedimentation and settle as sediment on the ground. Depending on the type of filtering, the deposit of the filtered solid particles is also referred to as filter cake. The treated, filtered gray water is freed from the sediment or from the solid particles of a predetermined minimum size. The remaining, deposited sediment can of course still contain a certain amount of liquid. Therefore, according to a development of the invention, the fill level sensor is suitably designed to recognize at least the limit level of gray water with a predetermined solid loading in the gray water tank, in particular in the inlet area of the gray water tank. The degree of solids loading of the greywater or the concentration of solids in the greywater should in particular not exceed 80% in order to recognize this as the solids level when the predetermined limit level is reached.

Durch die Filterung und Sammlung von Feststoff im Grauwasserbehälter kann das Absaug- bzw. Reinigungsintervall des Grauwasserbehälters signifikant verlängert werden. Das gefilterte Grauwasser kann auf das Gleisbett abgelassen werden. Dadurch wird weniger Volumen im Grauwasserbehälter zurückgehalten.By filtering and collecting solid matter in the gray water tank, the suction or cleaning interval of the gray water tank can be significantly extended. The filtered gray water can be drained onto the track bed. This means that less volume is retained in the gray water tank.

Gemäß einer vorteilhaften Weiterbildung der Erfindung umfasst der Grauwasserbehälter einen verschiebbaren Bodenabschnitt als Verschlussvorrichtung, welcher so am Grauwasserbehälter angeordnet ist, dass er in einer eingeschobenen Position einen Teil des Bodens des Gauwasserbehälters bildet und die Reinigungsöffnung im Boden des Grauwasserbehälters verschließt und in einer ausgeschobenen Position die Reinigungsöffnung frei gibt. Die ausgeschobene Position entspricht somit der geöffneten Position. Analog entspricht die eingeschobene Position der geschlossenen Position.According to an advantageous development of the invention, the gray water container comprises a displaceable bottom section as a closure device, which is arranged on the gray water container in such a way that it forms part of the bottom of the gray water container in an inserted position and closes the cleaning opening in the bottom of the gray water container and the cleaning opening in an extended position releases. The extended position corresponds to the open position. Similarly, the inserted position corresponds to the closed position.

Weitergebildet weist der Grauwasserbehälter Führungsschienen zur Führung des verschiebbaren Bodenabschnitts auf, welche beispielsweise an Seitenwänden des Grauwasserbehälters angeordnet sein können. Die Führungsschienen dienen der Führung des verschiebbaren Bodenabschnitts bei einer Verschiebung des verschiebbaren Bodenabschnitts entlang der Führungsschienen, insbesondere parallel zum Boden des Grauwasserbehälters im Bereich des verschiebbaren Bodenabschnitts.Developed, the gray water container has guide rails for guiding the displaceable bottom section, which can be arranged, for example, on the side walls of the gray water container. The guide rails serve to guide the displaceable bottom section when the displaceable bottom section is displaced along the guide rails, in particular parallel to the bottom of the greywater tank in the region of the displaceable bottom section.

Eine weitere Weiterbildung ist darin zu sehen, dass der Grauwasserbehälter einen dem verschiebbaren Bodenabschnitt zugewandten, insbesondere elastischen und gegen eine zum Innenraum des Grauwasserbehälters weisenden Fläche des verschiebbaren Bodenabschnitts vorgespannten Abstreifer aufweist, der ausgebildet ist, Anhaftungen an dem verschiebbaren Bodenabschnitt, insbesondere an der nach innen in den Grauwasserbehälter weisenden Fläche des verschiebbaren Bodenabschnitts, bei einer Bewegung des verschiebbaren Bodenabschnitts aus der eingeschobenen Position in die ausgeschobene Position abzustreifen.A further development is to be seen in the fact that the gray water container has a scraper facing the displaceable bottom section, in particular elastic and prestressed against a surface of the displaceable bottom section facing the interior of the gray water container, which is designed to adhere to the displaceable bottom section, in particular to the inside to strip the surface of the displaceable bottom section facing the gray water tank when the displaceable bottom section moves from the inserted position into the extended position.

Zur bevorzugten wasserdichten Abdichtung des verschiebbaren Bodenabschnitts gegen den Grauwasserbehälter kann zwischen dem verschiebbaren Bodenabschnitt und dem Grauwasserbehälter wenigstens eine Dichtung vorgesehen sein, welche in der eingeschobenen Position gegen beide Bauteile vorgespannt ist.For the preferred watertight sealing of the displaceable bottom section against the gray water tank, at least one seal can be provided between the displaceable bottom section and the gray water tank, which is prestressed against both components in the inserted position.

Als alternative Verschlussvorrichtung gilt eine Klappe, welche so an dem Grauwasserbehälter angeordnet ist, dass sie in einer zugeklappten Position einen Teil des Bodens des Gauwasserbehälters bildet und die Reinigungsöffnung verschließt und in einer aufgeklappten Position die Reinigungsöffnung frei gibt. Die Klappe als Alternative zum verschiebbaren Bodenabschnitt ist aufgrund des nicht in gleicher, einfacher Weise vorzusehenden Abstreifers schwieriger von Anhaftungen zu säubern. Darüber hinaus benötigt sie einen vergleichsweise größeren Raum unterhalb des Grauwasserbehälters. Die zugeklappte Position entspricht wiederum der geschlossenen Position der Verschlussvorrichtung, während die geöffnete Position der Verschlussvorrichtung der aufgeklappten Position entspricht.An alternative closure device is a flap which is arranged on the gray water container in such a way that in a closed position it forms part of the bottom of the gray water container and closes the cleaning opening and in an opened position releases the cleaning opening. The flap as an alternative to the displaceable bottom section is more difficult to remove buildup due to the scraper, which is not to be provided in the same simple manner. In addition, it requires a comparatively larger space below the gray water tank. The closed position corresponds in turn to the closed position of the closure device, while the open position of the closure device corresponds to the opened position.

Weitergebildet ist ein Auffangbehälter zur Aufnahme von vom Filter abgeschiedenem Sediment aus dem Grauwasserbehälter unterhalb der verschließbaren Reinigungsöffnung vorgesehen. Ausgefiltertes Sediment wird auch als Filterkuchen bezeichnet.Further developed is a collecting container for receiving sediment separated from the filter from the gray water container below the closable cleaning opening. Filtered out sediment is also called filter cake.

Eine weitere Variante der Erfindung sieht vor, dass der Grauwasserbehälter wenigstens einen Reinigungsabfluss im Auslassbereich aufweist. Der Reinigungsabfluss ist weitergebildet zur Abführung von zumindest leicht feststoffbeladenem Grauwasser aus dem Grauwasserbehälter geeignet ausgebildet und im Grauwasserbehälter angeordnet. Insbesondere ist der Boden des Gauwasserbehälters vom Einlassbereich zum Auslassbereich hin ansteigend ausgebildet. Der Reinigungsabfluss ist dann vorteilhaft an der tiefsten Stelle des Bodens des Gauwasserbehälters im Auslassbereich angeordnet.Another variant of the invention provides that the gray water tank has at least one cleaning drain in the outlet area. The cleaning drain is further developed for the removal of at least slightly solid-laden gray water from the gray water tank and is arranged in the gray water tank. In particular, the bottom of the melt water tank is designed to rise from the inlet area to the outlet area. The cleaning drain is then advantageously arranged at the deepest point of the bottom of the melt water tank in the outlet area.

Weitergebildet umfasst das Filter wenigstens zwei gegeneinander angeordnete, sich in horizontaler Richtung überlappende und vertikal voneinander beabstandete Kulissen, wobei insbesondere eine obere Kulisse deckenseitig angeordnet ist und sich in Richtung eines Bodens des Grauwasserbehälters erstreckt und wobei eine untere Kulisse bodenseitig angeordnet ist und sich in Richtung der Decke des Grauwasserbehälters erstreckt. Derart ausgebildete Filter werden auch als Kulissenfilter bezeichnet. Sie weisen gegeneinander ausgerichtete bzw. gegeneinander verlaufende Kulissen auf, die einen Spalt vorgegebener Größe zwischen den Kulissen aufweisen. Es sind zumindest zwei Kulissen, weitergebildet genau zwei Kulissen vorgesehen. Der Spalt weist seine vorgegebene Breite in horizontaler Richtung auf. Die untere Kulisse oder die unteren Kulissen können auch als bewegliche Schieber ausgebildet sein.Developed, the filter comprises at least two mutually arranged, overlapping in the horizontal direction and vertically spaced from each other, wherein in particular an upper backdrop is arranged on the ceiling and extends in the direction of a bottom of the gray water tank and a lower backdrop is arranged on the bottom and in the direction of the Cover of the gray water tank extends. Filters designed in this way are also referred to as backdrop filters. They have mutually aligned or mutually extending backdrops which have a gap of a predetermined size between the backdrops. There are at least two scenes, further developed exactly two scenes. The gap has its predetermined width in the horizontal direction. The lower backdrop or the lower backdrops can also be designed as movable slides.

Eine weitere Weiterbildung der Erfindung besteht darin, dass der Ablauf für gefiltertes Grauwasser, welcher insbesondere im Auslassbereich angeordnet ist, eine Öffnung zum Durchtritt von gefiltertem Grauwasser aufweist, die vom Boden des Grauwasserbehälters beabstandet angeordnet ist. Die Öffnung des Ablaufs ist somit gegenüber dem Boden des Grauwasserbehälters angehoben.A further development of the invention is that the outlet for filtered gray water, which is arranged in particular in the outlet area, has an opening for the passage of filtered gray water, which is arranged at a distance from the bottom of the gray water container. The opening of the drain is thus raised in relation to the bottom of the gray water tank.

Beispielsweise weist der Ablauf ein Rohr auf, welches durch den Boden des Grauwasserbehälters geführt ist und in den Grauwasserbehälter hineinragt. Die Öffnung des Ablaufs ist dann entsprechend die im Grauwasserbehälter liegende Öffnung des Rohrs. Der über dem Boden erhöhte Abfluss hat den Vorteil, dass ausströmendes, aufbereitetes Grauwasser kein eventuell am Boden abgelagertes Sediment mitreißt. Der Ablauf für gefiltertes Grauwasser kann auch als Überlauf für den Grauwasserbehälter fungieren. Das Grauwasser strömt frei durch den Abfluss, insbesondere auf das Gleisbett. Optional ist stromabwärts des Ablaufs ein Ablassventil vorgesehen zur Regulierung des Durchflusses durch den Ablauf.For example, the drain has a tube which is guided through the bottom of the gray water tank and protrudes into the gray water tank. The opening of the drain is then the opening of the pipe in the gray water tank. The increased drainage above the floor has the advantage that flowing, treated gray water does not carry any sediment that may have been deposited on the floor. The drain for filtered gray water can also act as an overflow for the gray water tank. The gray water flows freely through the drain, especially onto the track bed. A drain valve is optionally provided downstream of the drain to regulate the flow through the drain.

Eine weitere Weiterbildung der Erfindung ist darin zu sehen, dass das Filter eine permeable Membran, insbesondere ein Filtersieb, zur Filterung von Feststoffpartikeln vorgegebener Größe aus dem Grauwassers umfasst. Filterungen mittels permeabler Membran werden unter dem Begriff Membrantrennverfahren zusammengefasst.A further development of the invention can be seen in the fact that the filter comprises a permeable membrane, in particular a filter screen, for filtering solid particles of a predetermined size from the gray water. Filtering using a permeable membrane is summarized under the term membrane separation process.

Dabei ist ein zum Kulissenfilter zusätzliches Filtersieb denkbar, welches insbesondere über unterer Kulisse angeordnet ist. Aber auch eine anstelle des Kulissenfilters eingesetzte permeable Membran ist möglich.In this case, an additional filter screen is conceivable to the gate filter, which is arranged in particular above the lower gate. But a permeable membrane used instead of the gate filter is also possible.

Das Filter dient zur Filterung von Partikeln aus dem Grauwasser, welche Partikel größer als eine vorgegebene Mindestgröße sind. Das Filter ist entsprechend geeignet ausgestaltet, beispielsweise ist es als Sieb vorgegebener Maschenweite zum Abscheiden von Feststoffen vorgegebener Mindestgröße aus der Flüssigkeit ausgebildet.The filter is used to filter particles from the gray water, which particles are larger than a predetermined minimum size. The filter is suitably designed, for example it is designed as a sieve with a predetermined mesh size for separating solids of a predetermined minimum size from the liquid.

Die Aufspaltung des Abwassers in einen Filterkuchen und ein flüssiges Filtrat mittels eines Filtermediums wird auch als Filtration bezeichnet. Dabei wird insbesondere in der Flüssigkeit mitgeführter Feststoff aus der Flüssigkeit heraus getrennt. Das Filtermedium, umgangssprachlich auch Filter genannt, hält dabei Feststoffe aus der Flüssigkeit zurück. Die feststofffreie Phase wird bei der Filtration von Flüssigkeiten als Filtrat bezeichnet. Der an der Oberfläche des Filtermediums, beispielsweise einem Sieb, zurückbleibende Feststoff heißt, wie oben bereits ausgeführt, Filterkuchen. Fällt dieser vom Filter ab und sammelt sich am Boden, wird er als Sediment oder einfach nur als Feststoff bezeichnet.Splitting the waste water into a filter cake and a liquid filtrate using a filter medium is also referred to as filtration. In this case, in particular solid matter carried in the liquid is separated out of the liquid. The filter medium, colloquially also called filter, retains solids from the liquid. The solid-free phase is referred to as the filtrate in the filtration of liquids. The solid remaining on the surface of the filter medium, for example a sieve, is, as already stated above, filter cake. If it falls off the filter and collects on the bottom, it is referred to as sediment or simply as a solid.

Des Weiteren kann ein Frischwasserzulauf zur Zufuhr von Frischwasser, insbesondere deckenseitig, insbesondere im Auslassbereich angeordnet sein. Der Frischwasserzulauf kann zur Reinigung des Grauwasserbehälters dienen, beispielsweise um die Sedimente bei geöffnetem einlassbereichseitigem Reinigungsabfluss und gehobenen Schiebern des Kulissenfilters heraus zu spülen. Der Frischwasserzulauf kann als Düse ausgebildet sein, um auch die Seitenwände des Grauwasserbehälters und/oder das Filter zu reinigen. Dazu kann die Düse derart ausgebildet sein, einen Wasserstrahl ausstoßen, der unmittelbar auf die Seitenwände des Grauwasserbehälters und/oder das Filter trifft.Furthermore, a fresh water inlet for supplying fresh water, in particular on the ceiling side, in particular in the outlet area, can be arranged. The fresh water inlet can be used to clean the gray water tank, for example around the sediments when the cleaning outlet on the inlet area side is open and the slider of the gate filter is raised to wash. The fresh water inlet can be designed as a nozzle in order to also clean the side walls of the gray water container and / or the filter. For this purpose, the nozzle can be designed in such a way that it ejects a water jet that strikes the side walls of the gray water container and / or the filter.

Ein Vorteil der Erfindung liegt in der vereinfachten Reinigung des Grauwasserbehälters. Es werden keine halbvollen Tanks mehr abgesaugt. Dadurch werden die sogenannten Life Cycle Costs deutlich minimiert.An advantage of the invention is the simplified cleaning of the gray water tank. Half-full tanks are no longer suctioned off. This significantly reduces the so-called life cycle costs.

Die Erfindung lässt zahlreiche Ausführungsformen zu. Sie wird anhand der nachfolgenden Figur näher erläutert, in der ein Ausgestaltungsbeispiel dargestellt ist.The invention permits numerous embodiments. It is explained in more detail with reference to the following figure, in which an exemplary embodiment is shown.

In der Figur ist eine erfindungsgemäße Aufbereitungsvorrichtung für Grauwasser schematisch im Längsschnitt dargestellt.In the figure, a treatment device for gray water according to the invention is shown schematically in longitudinal section.

Ein Grauwasserbehälter 1 umfasst einen Grauwasserzulauf 2 in einem Einlassbereich 7, einen Ablauf 3 für gefiltertes Grauwasser in einem Auslassbereich 8, einen Filter 9 zur Filterung von Feststoff aus dem Grauwasser zwischen dem Grauwasserzulauf 2 und dem Ablauf 3 für gefiltertes Grauwasser und einen Füllstandsensor 10 im Einlassbereich 7.A gray water tank 1 comprises a gray water inlet 2 in an inlet area 7, an outlet 3 for filtered gray water in an outlet area 8, a filter 9 for filtering solid matter from the gray water between the gray water inlet 2 and the outlet 3 for filtered gray water, and a fill level sensor 10 in the inlet area 7.

Der Füllstandsensor 10 ist hier in Form eines Frequenzhub-Füllstandssensors als Grenzstandschalter ausgebildet und auf einer vorgegebenen Höhe über einem Boden 15 des Einlassbereichs 7 des Grauwasserbehälters 1 angeordnet, um einen vorgegebenen Grenzstand an Feststoff im Grauwasserbehälter 1 zu erkennen. Die Höhe des vorgegebenen Grenzstands an Feststoff im Grauwasserbehälter 1 entspricht dabei der Höhe des Füllstandsensors 10 über dem Boden 15 des Grauwasserbehälters 1. Der Feststoff wird vom Filter 9 aus dem Grauwasser gefiltert und zurückgehalten (Filterkuchen) und lagert sich am Boden ab und wird dann Sediment genannt. Der abgelagerte Feststoff wird hier mit dem Bezugszeichen 11 gekennzeichnet.The fill level sensor 10 is designed here in the form of a frequency swing fill level sensor as a limit level switch and is arranged at a predetermined height above a floor 15 of the inlet area 7 of the gray water container 1 in order to detect a predetermined limit level of solid matter in the gray water container 1. The height of the predetermined limit level of solid matter in the gray water tank 1 corresponds to the level of the level sensor 10 above the bottom 15 of the gray water tank 1. The solid matter is filtered and retained by the filter 9 from the gray water (filter cake) and is deposited on the floor and then becomes sediment called. The deposited solid is identified here with the reference number 11.

Der Ablauf 3 weist ein Rohr 16 auf, welches durch den Boden 15 des Grauwasserbehälters 1 geführt ist und in den Grauwasserbehälter 1 hineinragt. Er dient gleichzeitig als Überlauf. Die Ablauföffnung endet in diesem Ausgestaltungsbeispiel oberhalb des vorgegebenen Grenzstands an Feststoff im Grauwasserbehälter 1. Das Rohr 16 endet andererseits üblicherweise über den Gleisen für ein Schienenfahrzeug, auf welchen das gefilterte Grauwasser abgelassen wird. Hier weist es den Ausgang 18 auf. Alternativ kann das gefilterte Grauwasser auch einem Grauwasserverbraucher, beispielsweise einer Toilette des Schienenfahrzeugs als Spülwasser zugeführt werden. Das Rohr 16 stromabwärts des Ablaufs kann ein Ablassventil 17 zur Regulierung des Durchflusses an gefiltertem Grauwasser durch den Ablauf 3 aufweisen.The outlet 3 has a tube 16 which is guided through the bottom 15 of the gray water tank 1 and projects into the gray water tank 1. It also serves as an overflow. In this exemplary embodiment, the drain opening ends above the predetermined limit level of solids in the gray water tank 1. The pipe 16, on the other hand, usually ends above the tracks for a rail vehicle, on which the filtered gray water is drained off. Here it has exit 18. Alternatively, the filtered gray water can also be fed to a gray water consumer, for example a toilet of the rail vehicle, as rinsing water. The pipe 16 downstream of the outlet can have a drain valve 17 for regulating the flow of filtered gray water through the outlet 3.

Als Filter 9 dient hier ein Kulissenfilter mit einer festen oberen Kulisse 13, die fest mit dem Grauwasserbehälter 1 verbunden und starr in dem Grauwasserbehälter 1 deckenseitig angeordnet ist und sich in Richtung des Bodens 15 des Grauwasserbehälters 1 erstreckt und mit einer festen unteren Kulisse 12, die hier ebenfalls fest mit dem Grauwasserbehälter 1 verbunden und starr in dem Grauwasserbehälter 1 bodenseitig angeordnet ist und sich in Richtung der Decke des Grauwasserbehälters 1 erstreckt.The filter 9 used here is a backdrop filter with a fixed upper backdrop 13, which is firmly connected to the gray water tank 1 and is rigidly arranged in the gray water tank 1 on the ceiling and extends in the direction of the bottom 15 of the gray water tank 1 and with a fixed lower backdrop 12 which here also firmly connected to the gray water tank 1 and rigidly arranged in the bottom of the gray water tank 1 and extending in the direction of the ceiling of the gray water tank 1.

Der Füllstandsensor 10 ist dabei auf einer vorgegebenen Höhe über einem Boden 15 des Einlassbereichs 7 des Grauwasserbehälters 1 angeordnet, die unterhalb einer Unterseite der oberen Kulisse 13 und oberhalb einer Oberseite der unteren Kulisse 12 liegt. Somit kann, wenn der Füllstandsensor 10 den vorgegebenen Grenzstand an Feststoff im Grauwasserbehälter 1 detektiert, in dem Grauwasserbehälter 1 noch zusätzlicher Feststoff abgelagert werden, ohne dass dieser das Filter 9 erreicht und somit ohne, dass das Filter 9 mit Feststoff zugesetzt wird. Die übliche Höhendifferenz kann so festgelegt werden, dass diese die durchschnittliche Menge an täglich abgelagertem Feststoff abbildet.The fill level sensor 10 is arranged at a predetermined height above a floor 15 of the inlet area 7 of the gray water tank 1, which lies below an underside of the upper link 13 and above an upper side of the lower link 12. Thus, when the fill level sensor 10 detects the predetermined limit level of solid matter in the gray water tank 1, additional solid matter can be deposited in the gray water tank 1 without it reaching the filter 9 and thus without the filter 9 being added with solid matter. The usual height difference can be set to reflect the average amount of solid deposited daily.

Über der unteren Kulisse 12, ist hier zusätzlich eine permeable Membran 14 zur Filterung von Feststoffpartikeln vorgegebener Größe aus dem Grauwassers angeordnet. Diese ist hier mit der Oberseite der unteren Kulisse 12 und mit einer Decke des Grauwasserbehälters 1 verbunden und erstreckt sich auch über die gesamte Breite des Grauwasserbehälters 1 in die Zeichenebene hinein bzw. aus dieser heraus zwischen seinen Seitenwänden.A permeable membrane 14 for filtering solid particles of a predetermined size from the gray water is additionally arranged above the lower backdrop 12. This is connected here to the top of the lower backdrop 12 and to a ceiling of the gray water tank 1 and also extends over the entire width of the gray water tank 1 into and out of the drawing plane between its side walls.

Sedimentablagerungen 11 finden sich hier sowohl im Einlassbereich 7, als auch im Auslassbereich 8. Die im Auslassbereich 8 ist jedoch deutlich geringer. Zur Abführung, insbesondere zur Absaugung des Sediments im Auslassbereich 8 umfasst der Grauwasserbehälter 1 hier einen bodenseitigen Reinigungsabfluss 5. Gegebenenfalls kann auf den Reinigungsabfluss 5 im Auslassbereich 8 auch verzichtet werden. Er mündet in diesem Ausgestaltungsbeispiel in einer Absaugleitung, die über ein Absperrorgan 19, beispielsweise einen Kugelhahn mit einer Absaugvorrichtung verbindbar ist.Sediment deposits 11 can be found here both in the inlet area 7 and in the outlet area 8. However, that in the outlet area 8 is significantly lower. For the removal, in particular for the extraction of the sediment in the outlet area 8, the gray water tank 1 here comprises a cleaning drain 5 on the bottom side. If necessary, the cleaning drain 5 in the outlet area 8 can also be dispensed with. In this exemplary embodiment, it ends in a suction line which can be connected to a suction device via a shut-off element 19, for example a ball valve.

Darüber hinaus ist eine Reinigungsöffnung 4 im Boden 15 des Einlassbereichs 7 des Grauwasserbehälters 1 vorgesehen. Sie kann eine zur manuellen Wartung und/oder gegebenenfalls manuellen Reinigung geeignete Größe aufweisen. Um die Reinigungsöffnung 4 von außen zu öffnen und zu verschließen ist ein Abschnitt des Bodens 22 des Grauwasserbehälters 1 verschiebbar ausgebildet. Dieser Bodenabschnitt 22 verschließt in einer eingeschobenen Position die Reinigungsöffnung 4 im Boden 15 des Grauwasserbehälters 1. Zum Greifen und Verschieben weist der Bodenabschnitt 22 hier außerhalb des Grauwasserbehälters einen griffartigen Vorsprung 21 auf.In addition, a cleaning opening 4 is provided in the bottom 15 of the inlet area 7 of the gray water tank 1. It can have a size suitable for manual maintenance and / or manual cleaning, if necessary. In order to open and close the cleaning opening 4 from the outside, a section of the bottom 22 of the gray water tank 1 is designed to be displaceable. In a pushed-in position, this bottom section 22 closes the cleaning opening 4 in the bottom 15 of the gray water tank 1. For gripping and moving, the bottom section 22 here has a handle-like projection 21 outside of the gray water tank.

Der verschiebbare Bodenabschnitt 22 ist entlang seitlich angeordneter Führungsschienen 24 geführt. In der eingeschobenen Position ist der der verschiebbare Bodenabschnitt 22 gegen den Grauwasserbehälter 1 abgedichtet.The displaceable bottom section 22 is guided along laterally arranged guide rails 24. In the inserted position, the displaceable bottom section 22 is sealed against the gray water tank 1.

Unterhalb der verschließbaren Reinigungsöffnung 4 ist ein Auffangbehälter 23 zur Aufnahme von vom Filter 9 abgeschiedenem Sediment angeordnet. Bei der Öffnung der verschließbaren Reinigungsöffnung 4 durch Bewegen des verschiebbaren Bodenabschnitts 22 aus der eingeschobenen Position in die ausgeschobene Position fällt das Sediment 11 somit einfach in den Auffangbehälter 23.Arranged below the closable cleaning opening 4 is a collecting container 23 for receiving sediment separated from the filter 9. When the closable cleaning opening 4 is opened by moving the displaceable bottom section 22 from the pushed-in position into the pushed-out position, the sediment 11 thus simply falls into the collecting container 23.

An einer Stirnwand im Einlassbereich 7 des Grauwasserbehälters 1 ist ein Abstreifer 20 angeordnet, der gegen den verschiebbaren Bodenabschnitt 22 vorgespannt und somit in der Lage ist, Anhaftungen an dem verschiebbaren Bodenabschnitt 22 bei einer Bewegung des verschiebbaren Bodenabschnitts 22 aus der eingeschobenen Position in die ausgeschobene Position abzustreifen.A scraper 20 is arranged on an end wall in the inlet area 7 of the gray water container 1, which is biased against the displaceable bottom section 22 and is thus able to adhere to the displaceable bottom section 22 when the displaceable bottom section 22 moves from the inserted position into the extended position to strip off.

Ferner ist eine Spüldüse als Frischwasserzulauf 6 zur Zufuhr von Frischwasser deckenseitig im Auslassbereich 8 angeordnet.Furthermore, a flushing nozzle is arranged as a fresh water inlet 6 for supplying fresh water on the ceiling side in the outlet area 8.

Claims (13)

  1. Treatment device for grey water for a rail vehicle, having a grey water container (1), a grey water inflow (2), an outflow (3) for filtered grey water, and a filter (9) between the grey water inflow (2) and the outflow (3) for filtered grey water, characterized in that the grey water container (1) has at least one cleaning opening (4) which is able to be closed off from the outside and which serves for manual maintenance of the grey water container (1) and which is arranged on the base side.
  2. Treatment device according to Claim 1,
    characterized in that
    it comprises a displaceable base portion (22) which, in a slid-in position, forms part of a base (15) of the grey water container (1) and closes off the cleaning opening (4) and which, in a slid-out position, opens up the cleaning opening (4) .
  3. Treatment device according to Claim 2,
    characterized in that
    the grey water container (1) comprises guide rails (24) for guiding the displaceable base portion (22).
  4. Treatment device according to either of Claims 2 and 3,
    characterized in that
    the grey water container (1) has a scraper (20) which faces the displaceable base portion (22) and which, during a movement of the displaceable base portion (22) from the slid-in position into the slid-out position, is designed to scrape off material adhering to the displaceable base portion (22).
  5. Treatment device according to one of Claims 2 to 4,
    characterized in that,
    in the slid-in position, the displaceable base portion (22) is in a sealed-off state with respect to the grey water container (1) .
  6. Treatment device according to one of Claims 1 to 5,
    characterized in that
    it comprises a collecting container (23) which serves for receiving sediment separated out by the filter (9) and which is arranged below the closable cleaning opening (4).
  7. Treatment device according to one of Claims 1 to 6,
    characterized in that
    the grey water inflow (2) is arranged in an inlet region (7) of the grey water container (1), in that the outflow (3) for filtered grey water is arranged in an outlet region (8) of the grey water container (1), and in that the filter (9) is arranged between the inlet region (7) and the outlet region, wherein the cleaning opening (4) is arranged in the inlet region for manual maintenance of the inlet region (7) of the grey water container (1).
  8. Treatment device according to one of Claims 1 to 7,
    characterized in that
    the grey water inflow (2) is arranged in an inlet region (7) of the grey water container (1), in that the outflow (3) for filtered grey water is arranged in an outlet region (8) of the grey water container (1), and in that the filter (9) is arranged between the inlet region and the outlet region, wherein the grey water container has a cleaning drain (5) in the outlet region.
  9. Treatment device according to Claim 8,
    characterized in that
    the base (15) of the grey water container (1) rises from the inlet region (7) to the outlet region (8), and the cleaning drain (5) is arranged at the lowest point of the base (15) of the grey water container (1) in the outlet region (8).
  10. Treatment device according to one of Claims 1 to 9,
    characterized in that
    the filter (9) comprises at least two gates (12, 13), which are arranged against one another and overlap in the horizontal direction and are vertically spaced apart from one another.
  11. Treatment device according to one of Claims 1 to 10,
    characterized in that
    the outflow (3) for filtered grey water has an opening for the passage of filtered grey water, which opening is spaced apart from the base (15) of the grey water container (1).
  12. Treatment device according to one of Claims 1 to 11,
    characterized in that
    the filter (9) comprises a permeable membrane (14) for filtering solid particles of a predefined size from the grey water.
  13. Rail vehicle having at least one treatment device according to one of Claims 1 to 12.
EP17768092.3A 2016-09-20 2017-09-13 Greywater treatment device for a rail vehicle Active EP3487743B1 (en)

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PCT/EP2017/072999 WO2018054738A1 (en) 2016-09-20 2017-09-13 Greywater treatment device for a rail vehicle

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023204085A1 (en) 2023-05-03 2024-11-07 Siemens Mobility GmbH Sanitary facility for a rail vehicle with recontamination-free bidet
WO2024227567A1 (en) 2023-05-03 2024-11-07 Siemens Mobility GmbH Cleaning routine for a bidet nozzle of an integrated toilet-bidet unit, and sanitary unit for a public transport vehicle

Families Citing this family (1)

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DE102016218001A1 (en) 2018-03-22
WO2018054738A1 (en) 2018-03-29
EP3487743A1 (en) 2019-05-29
PT3487743T (en) 2020-06-01
PL3487743T3 (en) 2020-10-19
ES2808127T3 (en) 2021-02-25
CN210391147U (en) 2020-04-24
RU194282U1 (en) 2019-12-05

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