EP2167745B1 - Module de commande des eaux usées - Google Patents

Module de commande des eaux usées Download PDF

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Publication number
EP2167745B1
EP2167745B1 EP08785058A EP08785058A EP2167745B1 EP 2167745 B1 EP2167745 B1 EP 2167745B1 EP 08785058 A EP08785058 A EP 08785058A EP 08785058 A EP08785058 A EP 08785058A EP 2167745 B1 EP2167745 B1 EP 2167745B1
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EP
European Patent Office
Prior art keywords
valve
valve body
storage tank
control module
seat
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.)
Active
Application number
EP08785058A
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German (de)
English (en)
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EP2167745A2 (fr
Inventor
Ingo Zerbes
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.)
AOA Apparatebau Gauting GmbH
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AOA Apparatebau Gauting GmbH
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Publication of EP2167745A2 publication Critical patent/EP2167745A2/fr
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Publication of EP2167745B1 publication Critical patent/EP2167745B1/fr
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Classifications

    • 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

Definitions

  • the present invention relates to an aircraft with a vacuum supply system with a wastewater control module integrated in the latter according to the preamble of claim 1.
  • Aircraft are usually equipped with vacuum systems.
  • the toilets, washbasins, galley sinks and similar devices of the corresponding aircraft are connected via an associated valve unit and a line system to a collection in which, based on the ambient pressure of the device concerned (the cabin pressure), there is a negative pressure. If the respective valve unit is opened, the contents of the relevant washing, rinsing, toilet or other basin is transported due to the pressure gradient in the sump.
  • a disadvantage of such conventional vacuum systems is the strong noise especially at the end of the emptying of the device concerned (sink or the like.). This is all the more disturbing as, in particular for reasons of hygiene, in each case after each use of the device emptying is provided. Incidentally, this also adversely affects the life of a vacuum generator, which is typically used to generate the negative pressure in the system.
  • WO 2006/110295 A1 in which - according to the preamble of claim 1 - a storage container is provided, in which a separate, controllable via a valve air inlet (bypass) opens.
  • a storage container is provided, in which a separate, controllable via a valve air inlet (bypass) opens.
  • a valve air inlet bypass
  • Another generic aircraft is from the EP 0 295 508 A1 known, in which case the storage container is used to hold up service water for the flushing of an on-board toilet.
  • Vacuum systems are also known for stationary applications, for example, when in a spatially extended disposal system, the lines due the local conditions may have only a slight slope.
  • various wastewater control modules have been proposed in which between the basin in which the liquid is collected and / or collected, and the respective device (eg sink) associated valve unit arranged a buffer with a storage container is.
  • sewage control modules are known for the aforementioned stationary applications, each having a buffer and a storage container, an inlet nozzle and connectable to a vacuum suction outlet nozzles, the inlet nozzle opens into the storage container and in the flow path between the storage container and the outlet nozzle arranged in the bottom region of the storage container valve is arranged, which comprises a valve seat and a valve body relative to this movable.
  • the liquid level within the storage container by means of a float, which acts on a pilot pneumatic switch detected, wherein the pressure change in a pneumatic switch downstream pilot line causes a floating of the closing body and consequently opening of the valve.
  • the floating of the closing body can be brought about in particular mechanically or pneumatically.
  • the wastewater control module constructed using the known intermediate storage described above is unsuitable for mobile applications; in particular, it does not meet the strict reliability requirements in the aviation sector.
  • a reliable closing of the valve provided in the known buffer is not ensured even if, as is regularly the case for galley wastewaters, comparatively small foreign bodies are present in the wastewater, namely those which are buoyant.
  • the inevitable in mobile applications on board vehicles vibrations in an intolerable manner adversely affect the reliability of the waste water control module by they can cause uncontrolled opening or closing of the valve.
  • the object of the present invention is accordingly to improve a generic aircraft with a vacuum supply system comprising a waste water control module in such a way that the disadvantages described above in connection with known vehicle-mounted vacuum supply systems are avoided.
  • the requirements imposed on aerospace applications should be met, for example by high reliability.
  • outlet nozzle of the intermediate store which bears the negative pressure prevailing in the collecting container and the line system, opens into a working space bounded by the valve seat, the valve body , the valve housing and the valve body deformable relative to the valve housing sealing membrane, in which respect to the valve seat and an adjacent area, in particular of the soil of the storage container can count and to the valve housing also from the bottom of the storage container downwardly projecting, projecting into the valve housing, the edge of the membrane spanning coat or collar.
  • the corresponding working space - with the valve closed - an annularly extending around the valve body around shape, which may not be equated with circular ring course.
  • the prevailing in the line system vacuum can thus - via a corresponding action on the working space - help to close the valve after emptying of the storage container active and / or then keep closed.
  • the closing of the valve can be actively performed by pneumatic assisting the closing movement.
  • both the opening of the valve, by switching on an actively switchable pilot valve comprehensive actuator, as well as - caused by switching off the actuator - closing the valve regardless of the level of the storage tank is possible.
  • a complete emptying of the storage container including all foreign bodies can be ensured, which is particularly favorable for the reliable operation of the valve of the buffer.
  • valve body of the Adwasser control module is sealed off from the valve housing by means of a membrane separating the working space from the control space. Because this results in a particularly high tolerance of the function of the buffer against foreign bodies, which in turn has a positive effect on the reliability of the buffer. Furthermore, it is therefore essential for the achievement of the desired objective that according to the invention on the side facing away from the working space of the valve body through the valve housing, the valve body and the latter relative to the valve housing sealing membrane limited control chamber is provided which via a control line which by means of a actively switchable pilot valve can be shut off, can be connected to the vacuum suction line.
  • the actuating means by means of which the valve is to be actively opened, insofar as pneumatic, when the pilot valve of the present in the vacuum suction line vacuum also prevails in the control chamber, whereby the valve body is lifted down from the seat.
  • the wastewater control module has the property that a waste water transport only from the storage tank to the outlet nozzle is possible, regardless of the prevailing at the inlet and outlet nozzle pressure ratios and the position of the pilot valve. Thus, the wastewater control module reliably prevents the backflow of wastewater into the sink. (For sanitary reasons, this is a mandatory requirement for aircraft sewage systems.)
  • the specific design of the outlet nozzle effectively prevents clogging of the control line by foreign bodies contained in the wastewater.
  • the pilot valve can be controlled in particular by an electromagnet, preferably in such a way that it is locked when the electromagnet is de-energized.
  • the pilot valve can support the closing function of the pilot valve in the normal operating state of the vacuum liquid disposal system of a erfindungsgemä ⁇ en aircraft, ie at a prevailing in the vacuum suction line vacuum, the latter. This makes the wastewater control module - regardless of a possible complementary mechanical bias of the pilot valve (see below) - failsafe in the sense that the valve of the buffer remains reliably closed in an interruption of the power supply to the solenoid.
  • the pilot valve is preferably also by means of a mechanical spring in its the control line occluding position biased.
  • the pilot valve takes during the commissioning of the equipped with the vacuum liquid disposal facility (aircraft) as well as in the case of a pressure equalization between the sump of a vacuum sewage disposal system and the environment (with parked aircraft) reliably its closing the control line position, so that a stable operating condition is always guaranteed.
  • the control chamber is preferably connected via a throttled ventilation opening with the environment. This supports via a correspondingly defined pressure equalization between the control chamber and the environment, the closing function of the valve after switching off the actuator.
  • the cross section of the storage container can expand from top to bottom, for example by the corresponding housing is made more or less conical. This is also favorable with regard to the operational reliability of the low-temperature vacuum supply system equipped with the wastewater control module according to the invention, if there is a potential risk that the liquid accumulated in the storage container will freeze; because a possible ice layer can be easily solved in this way at an actively initiated emptying of the collecting container (see above) of the wall of the collecting container.
  • the buffer preferably also has at least one level sensor associated with the storage container whose output acts on the actuator in such a way that the storage container is automatically emptied upon reaching a predetermined level.
  • an electrical output signal generating level sensor is provided, which can be based for example on a capacitive or resitive measuring principle.
  • the at least one level sensor preferably also determines whether the buffer is completely emptied in order to initiate the closing of the valve in dependence thereon and only then - by corresponding actuation of the pilot valve.
  • the closing of the valve can be delayed by a predetermined time interval in order to favor the emptying of the buffer and / or a cleaning of the valve and / or the promotion of the extracted liquid from the buffer into the collecting container by a corresponding flushing.
  • one of the actuator associated electrical control is housed protected against moisture in the buffer in a arranged below the valve housing housing portion. This results in a particularly compact design of the buffer with all associated facilities. And the corresponding unit can be quickly assembled and disassembled.
  • the valve housing particularly preferably has a guide bush in which a guide pin connected to the valve body is guided.
  • a guide is especially indicated for reliable operation of the valve, when the valve body is sealed by a diaphragm against the valve housing.
  • a further preferred development of the present invention is characterized in that suitable position detection means are provided for determining the position of the valve body. This allows a regular reliable control of the function of the valve of the buffer by an evaluation circuit, to which also the actuator and the level sensors, if any, are connected.
  • a vacuum generator is preferably connected to the collecting container, which is put into operation as needed, if the pressure difference prevailing between the collecting container and the environment (eg in the case of a parked aircraft) is insufficient to ensure reliable operation To promote promotion of accumulated in the buffer memory liquid in the collection.
  • the vacuum generator is put into operation before the valve of the wastewater control module is opened by activating the actuating device.
  • the wastewater control module shown in the drawing comprises a storage container 1, an opening into the storage tank inlet nozzle 2 and an outlet nozzle 3, which is connectable to a vacuum suction line.
  • the storage container 1 is limited by an upwardly slightly tapered wall 4 of the housing 5, a the inlet nozzle 3 having cover 6 and a fixed mounted on a step 7 of the housing 5 bottom ring 8.
  • a valve seat 10 In the region of the central opening of the bottom ring. 8 is formed by a corresponding annular, inwardly directed projection 9, a valve seat 10.
  • valve housing 11 The region of the housing 5 located underneath the bottom ring 8 forms a valve housing 11.
  • a valve body 12 cooperating with the valve seat 10 is accommodated therein.
  • the valve body 12 comprises a base body 13 with a plate 14, a downwardly projecting from this guide pin 15 and an upwardly projecting lug 16 on the neck 16, a cap-like upper part 17 is mounted, which carries a sealing ring 18 which in the closed position of Valve 19 sealingly cooperates with the valve seat 10.
  • the edge of a substantially tubular membrane 20 is clamped, whose other edge defined by the end edge of the bottom ring 8 downwardly projecting shell 21 at a stage 22 of the valve housing 11 is.
  • the sealed by the membrane 20 and the plate 14 of the valve body 12 relative to the working space 23 part of the interior of the valve housing 11 forms a control chamber 25.
  • the central portion of the valve housing is formed into a guide sleeve 26 in which the guide pin 15 of the valve body 12th slidably guided along the vertical axis of the buffer.
  • a guide sleeve 26 Around the guide sleeve 26 around a designed as a helical spring 27 Zuhaltefeder 28 is provided, which biases the valve body 12 against the valve seat 10.
  • the control line 29 can be opened or closed in a controlled manner by means of a pilot valve 31 which can be actuated via an electromagnet 30.
  • the outlet nozzle 3 is designed in the form of a 90 ° -Winkelrohres with a defined separation edge for the waste water flow in the bend 32.
  • the control line 29 opens downstream of the tear-off edge in a dead space of the angle tube.
  • the control chamber 25 communicates with the environment via a throttled ventilation opening 33 arranged in the wall of the valve housing 11.
  • the control chamber 25 By opening the pilot valve 31, the control chamber 25 can be acted upon by the negative pressure prevailing in the outlet connection 3, as in the downstream line system and the collecting container. As a result, the valve body 12 is lifted down from the valve seat 11 and the valve 19 is opened.
  • the control line 29, the pilot valve 31 and the solenoid 30 taken together form a switchable, in their operation, the valve body 12 down from the valve seat 10 lifting actuator 34th
  • An electrical control 35 controlling the electromagnet 30 is arranged on a printed circuit board 36, which is accommodated in a housing section 37 arranged below the valve housing 11.
  • the corresponding housing portion 37 is closed by a cover 38, to which a connection of the controller 35 of the buffer to the on-board electronics serving connector 39 is arranged.
  • three level sensors 40 are arranged, which are connected to the controller 35, so that when it reaches a predetermined wastewater level in the storage tank 1 whose emptying can be automatically initiated.
  • position detection means comprise a magnet 42 connected to the guide pin 15 and a sensor 45 arranged on the circuit board and projecting into a corresponding recess 44 arranged in the bottom 43 of the valve housing 11.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Fluid-Driven Valves (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Sewage (AREA)

Claims (10)

  1. Aéronef comprenant une installation de traitement par le vide avec un module de contrôle des eaux usées intégré dans celle-ci, avec les caractéristiques suivantes :
    le module de contrôle des eaux usées présente un réservoir intermédiaire ;
    il comprend un récipient de stockage (1), une tubulure d'entrée (2) débouchant dans celui-ci et une tubulure de sortie (3) pouvant être raccordée à une conduite d'aspiration en dépression ;
    une soupape (19) est agencée au niveau du fond du récipient de stockage dans le chemin d'écoulement entre le récipient de stockage et la tubulure de sortie ;
    un boitier de soupape (11) est disposé sur le réservoir intermédiaire, en-dessous du récipient de stockage (1) ;
    caractérisé par les attributs suivants :
    la soupape (19) comprend un siège de soupape (10) et
    un corps de soupape (12) pouvant se déplacer par rapport à celui-ci ;
    le corps de soupape (12) repose sur le côté détourné du récipient de stockage sur le siège de soupape ;
    le corps de soupape (12) est étanchéifié au moyen d'une membrane (20) par rapport au boitier de soupape en pouvant être déplacé dans celui-ci ;
    la tubulure de sortie (3) débouche dans un espace de travail (23) délimité par le corps de soupape, le boitier de soupape, la membrane et le siège de soupape ;
    un dispositif d'actionnement (34) pouvant être commuté, enlevant le corps de soupape vers le bas depuis le siège, agit sur le corps de soupape ;
    un espace de commande (25) délimité par le boitier de soupape (11) et le corps de soupape est prévu sur le côté du corps de soupape (12) détourné de l'espace de travail (23), lequel peut être raccordé à la conduite d'aspiration en dépression par une conduite de commande (29) qui peut être bloquée via une soupape pilote (31) pouvant être activée ;
    la tubulure de sortie (3) est réalisée en tant que tube coudé avec un bord de décollement défini, sachant que la conduite de commande (29) débouche en aval d'écoulement du bord de décollement dans un espace mort du tube coudé.
  2. Aéronef selon la revendication 1, caractérisé en ce que la soupape pilote (31) est réalisée en tant qu'électrovanne, laquelle est bloquée lorsque l'électroaimant(30) n'est pas alimenté en courant.
  3. Aéronef selon la revendication 1 ou 2, caractérisé en ce qu'une commande électrique (35) agit sur la soupape pilote (31), sachant qu'au moins un capteur de niveau de remplissage (40) produisant un signal de sortie électrique est attribué au récipient de stockage (1).
  4. Aéronef selon la revendication 3, caractérisé en ce que la commande électrique (35) est placée dans une section de boitier (37) disposée en-dessous du boitier de soupape (11).
  5. Aéronef selon l'une des revendications 1 à 4, caractérisé en ce que l'espace de commande (25) est en liaison avec l'extérieur par une ouverture d'aération (33) à étranglement.
  6. Aéronef selon l'une des revendications 1 à 5, caractérisé en ce qu'un ressort de retenue mécanique (28) est prévu, lequel précontraint le corps de soupape (12) contre le siège de soupape (10).
  7. Aéronef selon l'une des revendications 1 à 6, caractérisé en ce qu'une tige de guidage (15) est reliée au corps de soupape (12), laquelle est guidée dans une douille de guidage (26) du boitier de soupape (11).
  8. Aéronef selon l'une des revendications 1 à 7, caractérisé en ce que des moyens de détection de position (41) appropriés sont prévus pour déterminer la position du corps de soupape (12).
  9. Aéronef selon l'une des revendications 1 à 8, caractérisé en ce que la section transversale du récipient de stockage (1) s'élargit du haut vers le bas.
  10. Aéronef selon l'une des revendications 1 à 9, comprenant un récipient de collecte et un système de conduites reliant le module de contrôle des eaux usées au récipient de collecte, sachant que le réservoir intermédiaire du module de contrôle des eaux usées présente au moins un capteur de niveau de remplissage attribué au récipient de stockage, qu'une unité de commande reliée au capteur de niveau de remplissage agit sur le dispositif d'actionnement du module de contrôle des eaux usées, qu'un générateur de vide est raccordé au récipient de collecte et que l'unité de commande, après réception d'un signal indiquant un niveau de remplissage donné du capteur de niveau de remplissage, active le générateur de vide avant une commande du dispositif d'actionnement effectuant l'ouverture de la soupape du module de contrôle des eaux usées.
EP08785058A 2007-07-25 2008-07-25 Module de commande des eaux usées Active EP2167745B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007034499A DE102007034499A1 (de) 2007-07-25 2007-07-25 Abwasser-Kontrollmodul mit einem Zwischenspeicher
PCT/EP2008/006105 WO2009013003A2 (fr) 2007-07-25 2008-07-25 Module de commande des eaux usées

Publications (2)

Publication Number Publication Date
EP2167745A2 EP2167745A2 (fr) 2010-03-31
EP2167745B1 true EP2167745B1 (fr) 2012-04-18

Family

ID=39832094

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08785058A Active EP2167745B1 (fr) 2007-07-25 2008-07-25 Module de commande des eaux usées

Country Status (4)

Country Link
EP (1) EP2167745B1 (fr)
AT (1) ATE554240T1 (fr)
DE (1) DE102007034499A1 (fr)
WO (1) WO2009013003A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023136174A1 (de) * 2023-12-21 2025-06-26 Diehl Aviation Gilching Gmbh Toilettenanordnung für ein Flugzeug mit kombinierter Absaugung von Schwarzwasser

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1550053A1 (de) * 1966-01-10 1969-05-08 Adox Du Pont Fotowerke Bodenauslaufventil fuer Fluessigkeitsbehaelter
DE1600923A1 (de) * 1967-05-05 1970-07-16 Siemens Elektrogeraete Gmbh Verschlussventil
FI54172C (fi) 1973-10-26 1978-10-10 Waertsilae Oy Ab Avloppsventil
GB1588324A (en) * 1977-08-03 1981-04-23 Jered Ind Inc Vacuum and gravity operated timer
DE8436127U1 (de) * 1984-12-10 1985-03-14 Fr. Buschjost GmbH & Co, 4970 Bad Oeynhausen Mehrwegeventil
DE3823515A1 (de) * 1988-05-10 1989-11-23 Harald Michael Steuervorrichtung fuer ein durch unterdruck betaetigbares absaugventil an einer vakuumleitung, insbesondere fuer abwasser
DE9418045U1 (de) * 1994-11-11 1995-02-02 Neumüller, Peter, Dipl.-Phys., 63128 Dietzenbach Kunststoffbehälter zur Speicherung des Wassers oder anderer Flüssigkeiten mit anomalem Estarrungsverhalten
DE29616003U1 (de) * 1996-09-13 1997-02-13 Roediger Vakuum- Und Haustechnik Gmbh, 63450 Hanau Anordnung zum Absaugen von Flüssigkeit
WO2001053618A2 (fr) 2000-01-18 2001-07-26 Roediger Vakuum- Und Haustechnik Gmbh Systeme sanitaire
DE10006028C1 (de) * 2000-02-10 2001-05-23 Roediger Vakuum & Haustechnik Verfahren und Anordnung zum Belüften eines Flüssigkeit aufnehmenden Behälters
US6698213B2 (en) * 2001-05-22 2004-03-02 Integrated Biosystems, Inc. Systems and methods for freezing and storing biopharmaceutical material
FI111978B (fi) * 2002-02-28 2003-10-15 Evac Int Oy Urinaalijärjestely

Also Published As

Publication number Publication date
EP2167745A2 (fr) 2010-03-31
DE102007034499A1 (de) 2009-01-29
WO2009013003A2 (fr) 2009-01-29
ATE554240T1 (de) 2012-05-15
WO2009013003A3 (fr) 2009-03-12

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