EP0954649A1 - Vacuum toilet - Google Patents

Vacuum toilet

Info

Publication number
EP0954649A1
EP0954649A1 EP98907937A EP98907937A EP0954649A1 EP 0954649 A1 EP0954649 A1 EP 0954649A1 EP 98907937 A EP98907937 A EP 98907937A EP 98907937 A EP98907937 A EP 98907937A EP 0954649 A1 EP0954649 A1 EP 0954649A1
Authority
EP
European Patent Office
Prior art keywords
basin
vacuum
vacuum toilet
water
toilet
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
Application number
EP98907937A
Other languages
German (de)
French (fr)
Other versions
EP0954649B1 (en
Inventor
Oliver Claas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evac GmbH
Original Assignee
Sanivac Vakuumtechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanivac Vakuumtechnik GmbH filed Critical Sanivac Vakuumtechnik GmbH
Publication of EP0954649A1 publication Critical patent/EP0954649A1/en
Application granted granted Critical
Publication of EP0954649B1 publication Critical patent/EP0954649B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
    • E03F1/006—Pneumatic sewage disposal systems; accessories specially adapted therefore
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
    • E03D11/13—Parts or details of bowls; Special adaptations of pipe joints or couplings for use with bowls, e.g. provisions in bowl construction preventing backflow of waste-water from the bowl in the flushing pipe or cistern, provisions for a secondary flushing, for noise-reducing
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system

Definitions

  • the invention relates to a vacuum toilet, comprising a basin with flushing nozzles arranged in the upper basin area and a shut-off valve in the drain line connected in the lower basin area.
  • the rinse water will run into the pool and will not be able to drain down because the shutoff valve is closed.
  • the water level in the basin rises and can finally reach the point where the rinsing nozzles come into contact with the rinsing water in the basin, so that an undesired connection from the more or less contaminated rinsing water to the fresh water circuit can result, should a defect occur in the Fresh water system would create a suction, contaminated water from the toilet would get into the fresh water system. However, this must be excluded.
  • the safety measure used so far here would be an additional installation of a separate rinsing water circuit in addition to the fresh water circuit, that is to say a relatively cost-intensive measure.
  • the depression outside the aircraft moving at great heights being used as a means of conveying objects or body parts due to the suction effect of the vacuum People are sucked in and there is a risk of property damage and serious physical injury.
  • the invention deals with such shortcomings of known vacuum toilets and achieves an effective remedy in that in the case of a vacuum toilet of the type mentioned in the lower pool area or in the drainage area, an outwardly leading pipeline opens, which ends at a height slightly below the flushing nozzles and towards the outside is open.
  • the highest possible water level in the pool can be determined by fixing the end of this pipeline to the desired geodetic height. If the flushing nozzles supply flushing water into the basin when the valve is closed, the most glaring case that can occur is that the flushing water exits via the open end of the pipeline. Under no circumstances can the water level in the pool reach the height of the nozzles, which means that the fresh water circuit is not impaired.
  • the vacuum source acts not only on the mass in the basin but also on the liquid that is present in the pipeline.
  • the drainage mass and the liquid are attracted by means of the suction power of the vacuum, and after the pipeline has been emptied, air is sucked in, so that in Under no circumstances, for example when using the toilet without a toilet seat and conceivable complete sealing of the pool edge with the body of the person using it, such a suction effect can be generated in the pool through which body parts or objects can be attracted.
  • suitable dimensioning of this additional pipeline with regard to the inside diameter or a throttling point can result in the mass being sucked in being fluidized to a certain extent, so that overall the conditions during suctioning are more favorable.
  • 10 denotes the basin of a vacuum toilet.
  • a suction line which can be shut off by a valve 20.
  • the direction of the delivery of the drainage mass or the force effect of the vacuum is indicated by arrow 30.
  • flushing nozzles 11 In the upper part of the basin there are several flushing nozzles 11, which are arranged at a geodetic height H1 and whose meaning and purpose is known. Regulations require that these flushing nozzles 11 must not come into contact with the water collecting in the basin 10, which, as already stated, cannot be ensured in known toilets.

Abstract

A vacuum toilet comprising a bowl with flushing nozzles, a shut-off valve and a waste pipe. Connected in the lower region of the bowl is a pipe (12) which leads from the latter upwards and terminates open at a level (H2) slightly below the flushing nozzles (11).

Description

Vakuumtoilette Vacuum toilet
Die Erfindung bezieht sich auf eine Vakuumtoilette, aufweisend ein Becken mit im oberen Beckenbereich angeordneten Spüldüsen und einem Absperrventil in der im unteren Beckenbereich angeschlossenen Ablaufleitung.The invention relates to a vacuum toilet, comprising a basin with flushing nozzles arranged in the upper basin area and a shut-off valve in the drain line connected in the lower basin area.
Bei derartigen Vakuumtoiletten können Betriebsbedingungen eintreten, die höchst unerwünscht sind und zum Teil fatale Folgen haben können.With such vacuum toilets, operating conditions can occur that are highly undesirable and can have fatal consequences in some cases.
Wenn beispielsweise die Zufuhr von Spülwasser zu den Spüldüsen auf Grund irgendeines Fehlers nicht abgestellt wird, läuft das Spülwasser in das Becken und kann nicht nach unten auslaufen, da das Absperrventil geschlossen ist. In diesem Falle steigt der Wasserspiegel im Becken an und kann schliesslich soweit gelangen, dass die Spüldüsen mit dem Spülwasser im Becken in Berührung kommen, so dass hierdurch eine unerwünschte Verbindung vom mehr oder weniger verunreinigtem Spülwasser zum Frischwasserkreislauf entstehen kann, sollte durch z.B. einen Defekt im Frischwassersystem ein Sog entstehen, würde verunreinigtes Wasser aus der Toilette in das Frischwassersystem gelangen. Dies muß jedoch ausgeschlossen werden. Die bislang hier eingesetzte Sicherungsmaßnahme wäre eine zum Frischwasserkreislauf zusätzliche Installation eines separaten Spülwasserkreislaufes, also eine verhältnismäßig kostenintensive Maßnahme. Weiterhin ist denkbar, daß in Fällen unsachgemäßen Gebrauchs bei bekannten Vakuumtoiletten und insbesondere bei solchen, die in Flugzeugen betrieben werden, wobei der Unterdr ck außerhalb des sich in großer Höhe bewegenden Flugzeuges als Fördermittel eingesetzt wird, dass durch die Sogwirkung des Vakuums Gegenstände oder Körperteile eines Menschen angesaugt werden und die Gefahr von Sach- und ernsthaften Körperverletzungen besteht.For example, if the supply of rinse water to the rinse nozzles is not stopped due to some fault, the rinse water will run into the pool and will not be able to drain down because the shutoff valve is closed. In this case, the water level in the basin rises and can finally reach the point where the rinsing nozzles come into contact with the rinsing water in the basin, so that an undesired connection from the more or less contaminated rinsing water to the fresh water circuit can result, should a defect occur in the Fresh water system would create a suction, contaminated water from the toilet would get into the fresh water system. However, this must be excluded. The safety measure used so far here would be an additional installation of a separate rinsing water circuit in addition to the fresh water circuit, that is to say a relatively cost-intensive measure. Furthermore, it is conceivable that in cases of improper use in known vacuum toilets and in particular in those which are operated in aircraft, the depression outside the aircraft moving at great heights being used as a means of conveying objects or body parts due to the suction effect of the vacuum People are sucked in and there is a risk of property damage and serious physical injury.
Die Erfindunmg beschäftigt sich mit derartigen Mängeln bekannter Vakuumtoiletten und erreicht eine wirksame Abhilfe dadurch, dass bei einer Vakuumtoilette der eingangs genannten Art im unteren Beckenbereich oder im Abflußbereich eine nach außen führende Rohrleitung mündet, die in einer Höhe etwas unterhalb der Spüldüsen endet und nach außen hin offen ist.The invention deals with such shortcomings of known vacuum toilets and achieves an effective remedy in that in the case of a vacuum toilet of the type mentioned in the lower pool area or in the drainage area, an outwardly leading pipeline opens, which ends at a height slightly below the flushing nozzles and towards the outside is open.
Auf Grund der kommunizierend angeschlossenen Rohrleitung kann der höchstmögliche Wasserpegel in dem Becken dadurch festgelegt werden, dass das Ende dieser Rohrleitung auf die gewünschte geodätische Höhe festgelegt wird. Liefern die Spüldüsen also Spülwasser in das Becken bei geschlossenem Ventil nach, so ist der krasseste Fall, der eintreten kann, der, dass über das nach oben offene Ende der Rohrleitung das Spülwasser austritt. Es kann in keinem Fall dazu kommen, dass der Wasserstand im Becken die Höhe der Düsen erreicht, eine Beeinträchtigung des Frischwasserkreislaufes ist damit ausgeschlossen .Due to the communicating pipeline, the highest possible water level in the pool can be determined by fixing the end of this pipeline to the desired geodetic height. If the flushing nozzles supply flushing water into the basin when the valve is closed, the most glaring case that can occur is that the flushing water exits via the open end of the pipeline. Under no circumstances can the water level in the pool reach the height of the nozzles, which means that the fresh water circuit is not impaired.
Beim Absaugvorgang der Vakuumtoilette gemäß der Erfindung wirkt die Vakuumquelle nicht nur auf die Masse im Becken sondern auch auf die Flüssigkeit ein, die in der Rohrleitung vorhanden ist. Die Ablaufmasse und die Flüssigkeit werden mit Hilfe der Saugkraft des Vakuums angezogen, und, nachdem sich die Rohrleitung entleert hat, wird Luft angesaugt, so dass in keinem Fall, z.B. bei Benutzung der Toilette ohne Toilettensitz und denkbarer vollständiger Abdichtung des Beckenrandes mit dem Körper der benutzenden Person eine solche Sogwirkung im Becken erzeugt werden kann, durch die Körperteile oder Gegenstände angezogen werden können.During the vacuuming process of the vacuum toilet according to the invention, the vacuum source acts not only on the mass in the basin but also on the liquid that is present in the pipeline. The drainage mass and the liquid are attracted by means of the suction power of the vacuum, and after the pipeline has been emptied, air is sucked in, so that in Under no circumstances, for example when using the toilet without a toilet seat and conceivable complete sealing of the pool edge with the body of the person using it, such a suction effect can be generated in the pool through which body parts or objects can be attracted.
Es kommt noch hinzu, dass durch geeignete Dimensionierung dieser zusätzlichen Rohrleitung hinsichtlich des Innendurchmessers oder einer Drosselstelle erreicht werden kann, dass die angesaugte Masse in gewisser Weise fluidisiert wird, so dass sich insgesamt die Verhältnisse beim Absaugen günstiger darstellen.In addition, suitable dimensioning of this additional pipeline with regard to the inside diameter or a throttling point can result in the mass being sucked in being fluidized to a certain extent, so that overall the conditions during suctioning are more favorable.
Die Erfindung wird nachstehend anhand der Zeichnung beispielsweise erläutert.The invention is explained below with reference to the drawing, for example.
Die einzige Figur der Zeichnung zeigt eine schaubildliche Darstellung einer Vakuumtoilette im Vertikalschnitt.The only figure in the drawing shows a graphical representation of a vacuum toilet in vertical section.
In der Figur ist mit 10 das Becken einer Vakuumtoilette bezeichnet. Im unteren Teil des Beckens befindet sich eine Absaugleitung, die durch ein Ventil 20 abgesperrt werden kann. Mit dem Pfeil 30 ist die Richtung des Förderns der Ablaufmasse bzw. die Kraftwirkung des Vakuums angedeutet.In the figure, 10 denotes the basin of a vacuum toilet. In the lower part of the basin there is a suction line which can be shut off by a valve 20. The direction of the delivery of the drainage mass or the force effect of the vacuum is indicated by arrow 30.
Im oberen Teil des Beckens befinden sich mehrere Spüldüsen 11, die auf einer geodätischen Höhe Hl angeordnet sind und deren Sinn und Zweck bekannt ist. Vorschriften verlangen, dass diese Spüldüsen 11 mit dem sich in dem Becken 10 sammelnden Wasser nicht in Berührung kommen dürfen, was, wie bereits ausgeführt, bei bekannten Toiletten aber nicht sichergestellt werden kann.In the upper part of the basin there are several flushing nozzles 11, which are arranged at a geodetic height H1 and whose meaning and purpose is known. Regulations require that these flushing nozzles 11 must not come into contact with the water collecting in the basin 10, which, as already stated, cannot be ensured in known toilets.
Im unteren Bereich des Beckens 10, etwa in der Rohrleitung jedenfalls strömungsmäßig vor dem Absperrventil 20, ist eine Leitung 13 angeschlossen, welche in einem Bereich 12 nach oben hin ansteigt und schliesslich auf einer Höhe H2 bei 14 nach außen hin offen endet.In the lower region of the basin 10, at least in terms of flow upstream of the shut-off valve 20, for example in the pipeline, there is one Line 13 connected, which rises in an area 12 upwards and finally ends at a height H2 at 14 open to the outside.
Es ist ersichtlich, dass kein Flüssigkeitsstand im Becken über die geodätische Höhe H2 hinausgehen kann, weil in diesem Fall über die Leitung 12 und das offene Ende 14 Wasser abfließen kann. It can be seen that no liquid level in the basin can exceed the geodetic height H2, because in this case water can flow off via the line 12 and the open end 14.

Claims

PatentanspruchClaim
Vakuumtoilette, aufweisend ein Becken mit im oberen Beckenbereich angeordneten Spüldüsen und einem Absperrventil in der im unteren Beckenbereich angeschlossenen Ablaufleitung, dadurch gekennzeichnet, dass im unteren Beckenbereich eine Leitung (12) angeschlossen ist, die von dorther nach oben führt und auf einer Höhe (H2) etwas unterhalb der Spüldüsen (11) offen endet. Vacuum toilet, comprising a basin with flushing nozzles arranged in the upper basin area and a shut-off valve in the drain line connected in the lower basin area, characterized in that a line (12) is connected in the lower basin area, which leads from there upwards and at a height (H2) ends slightly below the flushing nozzles (11).
EP98907937A 1997-01-22 1998-01-10 Vacuum toilet Expired - Lifetime EP0954649B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29700985U 1997-01-22
DE29700985U DE29700985U1 (en) 1997-01-22 1997-01-22 Vacuum toilet
PCT/EP1998/000120 WO1998032929A1 (en) 1997-01-22 1998-01-10 Vacuum toilet

Publications (2)

Publication Number Publication Date
EP0954649A1 true EP0954649A1 (en) 1999-11-10
EP0954649B1 EP0954649B1 (en) 2003-05-02

Family

ID=8034848

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98907937A Expired - Lifetime EP0954649B1 (en) 1997-01-22 1998-01-10 Vacuum toilet

Country Status (7)

Country Link
US (1) US6223357B1 (en)
EP (1) EP0954649B1 (en)
JP (1) JP3722447B2 (en)
KR (1) KR20000070385A (en)
AT (1) ATE239146T1 (en)
DE (2) DE29700985U1 (en)
WO (1) WO1998032929A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10065985B4 (en) 2000-01-18 2005-05-25 Roediger Vakuum- Und Haustechnik Gmbh toilet bowl
US7987527B1 (en) 2004-12-14 2011-08-02 Shumaker James J Toilet ventilation device
CA2736962C (en) * 2008-10-03 2013-04-30 B/E Aerospace, Inc. Vacuum waste system and method for using the same
US10301805B2 (en) 2015-03-30 2019-05-28 B/E Aerospace, Inc. Aircraft vacuum toilet system splashguard
CN104983351A (en) * 2015-06-03 2015-10-21 安徽雷风动力科技有限公司 Vacuum toilet for intercity bus

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US108146A (en) * 1870-10-11 Improvement in water-closet hoppers
US2778029A (en) 1953-11-25 1957-01-22 Case Mfg Corp Non-overflow water closet
US3995328A (en) * 1974-12-13 1976-12-07 The Boeing Company Vacuum toilet system
US3956776A (en) 1975-05-28 1976-05-18 Thetford Corporation Liquid waste material conveying system for toilets and the like
DE2654437C2 (en) * 1976-12-01 1978-10-05 Electrolux Gmbh, 2000 Hamburg Vacuum drainage system for houses, factories, ships or the like
DE8018966U1 (en) * 1979-07-18 1981-05-27 Rogerson Aircraft Controls, Los Angeles, Calif. VACUUM WASTE TOILET SYSTEM
JP3084424B2 (en) * 1992-12-03 2000-09-04 株式会社イナックス Toilet bowl
FI99156C (en) * 1993-04-19 1997-10-10 Evac Ab Electric controller
US5732417A (en) * 1996-03-12 1998-03-31 Envirovac Inc. Vaccum toilet system
US6012678A (en) * 1998-01-26 2000-01-11 The Boeing Company Galley vacuum waste disposal system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9832929A1 *

Also Published As

Publication number Publication date
JP3722447B2 (en) 2005-11-30
EP0954649B1 (en) 2003-05-02
ATE239146T1 (en) 2003-05-15
DE59808156D1 (en) 2003-06-05
KR20000070385A (en) 2000-11-25
DE29700985U1 (en) 1998-05-20
US6223357B1 (en) 2001-05-01
JP2001508512A (en) 2001-06-26
WO1998032929A1 (en) 1998-07-30

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