WO2007019854A1 - Toilette a aspiration - Google Patents

Toilette a aspiration Download PDF

Info

Publication number
WO2007019854A1
WO2007019854A1 PCT/DK2006/000442 DK2006000442W WO2007019854A1 WO 2007019854 A1 WO2007019854 A1 WO 2007019854A1 DK 2006000442 W DK2006000442 W DK 2006000442W WO 2007019854 A1 WO2007019854 A1 WO 2007019854A1
Authority
WO
WIPO (PCT)
Prior art keywords
toilet
tank
inlet
valve
sensors
Prior art date
Application number
PCT/DK2006/000442
Other languages
English (en)
Inventor
Lars Genild
Henning Christiansen
Original Assignee
Glova 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 Glova Gmbh filed Critical Glova Gmbh
Publication of WO2007019854A1 publication Critical patent/WO2007019854A1/fr

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
    • 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
    • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
    • E03D5/003—Grey water flushing systems

Definitions

  • the invention relates to vacuum toilets which are suitable for being installed in a vehicle such as a train and a bus.
  • Such toilets are known for more than a decade and use compressed air for powering a vacuum generator such as an ejector, and for controlling the . opening and closing of inlet and outlet valves to an intermediate tank for receiving and discharging waste material from the toilet bowl. Compressed air can also be used for controlling the opening and closing of a valve for flushing the toilet bowl with water.
  • EP 679 211 discloses such a toilet with sensors for sensing states of malfunction of the toilet such as lack of flushing water, lack of compressed air, flow obstruction, bowl overflow and below-freezing temperatures.
  • the sensors of that toilet are two-state (on/off) switches that change state when a predetermined limit is reached, ie in case of malfunction. Data from the switches representing the use of the toilet over a period are stored, but the diagnostic value is limited.
  • the invention provides a toilet with one or more sensors for sensing, during each cycle of operation of the toilet, the values of one or more of the air pressure in the air inlet, the air pressure in the tank, the ambient temperature, the open or closed state of the inlet valve, and the open or closed state of the outlet valve.
  • a controller controls the operation of the toilet and during each cycle of operation of the toilet a record is made of the variation of each of the parameters that monitored by the sensors, and the set of records is stored in a memory.
  • Data in the memory can be read out or uploaded for detailed analysis, and the data can be presented graphically, in a table, or in other suitable manner for use by service people.
  • the memory can be a removable memory such as a memory card, a floppy disk, a CDROM or other suitable storage medium, or the data can be transmitted wirelessly to a centrally located computer. Such transmission can be initiated automatically by the controller in case a malfunction has been diagnosed by the controller, or at the request of a service person or the centrally located computer, eg at regular intervals.
  • test report can serve as a basis for demonstrating the history of the toilet, and in case of malfunction a test report serves as a basis of diagnosing the toilet and deciding on the proper action to be taken.
  • a service manual will typically be available to the service persons as a tool with instructions for interpreting the registered data, diagnosing and proposing remedy or repair.
  • such instructions can also be stored in the controller or its memory, whereby the controller can propose one or more possible diagnoses and one or more possible repairs.
  • the registered data may be used to localise the cause of the malfunction, and the faulty component can be identified both in the toilet itself and possibly also in the supply of water and in compressed air and in the sewer system receiving the discharged waste material form the toilet.
  • FIG. 1 shows schematically shown a toilet of the invention and its functional components
  • Figure 2 shows schematically the pressures in the air inlet to the toilet and in the tank during a cycle of operation of the toilet in figure 1 , where the pressures are linked in time together with the opening and closing of valves during a cycle of operation of the toilet. Relative timing and the actual pressures are not necessarily drawn to scale.
  • FIG 1 a toilet with a toilet bowl 1.
  • the toilet has an air inlet 11 that can be connected to a supply of compressed air eg in a vehicle, in which the toilet is to be installed. Compressed air passes a filter regulator 12.
  • the toilet has a water inlet 5 that can be connected to a supply of flushing water in the vehicle through a check valve 6.
  • a valve block 14 comprises operating valves V1 - V5, which are controlled by a controller 21 to supply compressed air to pneumatically operated components of the toilet.
  • a tank 3 is connected to the toilet bowl 1 via a pneumatically operated inlet valve 2 that can allow waste material in the toilet bowl to flow into the tank 3.
  • a vacuum generator 16 preferably in the form of an ejector, is driven by compressed air and is controllable to establish a vacuum, ie a sub- atmospheric pressure, in the tank 3.
  • a typical operating cycle of the toilet is as follows, where details may vary.
  • the inlet valve 2 to the tank 3 and the outlet valve 4 from the tank 3 are closed, and the tank 3 is vented to the ambient atmosphere through the ejector 16 and the open pinch valve 17.
  • the water pump 7 is filled with water, and the flush valve 8 is closed. No electric current flows in the pneumatic valves V1 - V5 and the entire system is monitored by the controller 21.
  • valve V1 When the toilet is activated by a user it enters a vacuum generating phase.
  • the valve V1 is activated, and airflows to the ejector 16 and evacuates the tank to a predetermined vacuum.
  • the valve V5 is activated and starts the water pump 7.
  • the flush valve 8 is opened, and the toilet bowl is flushed with water through a distributor block and flush nozzles 10.
  • the valve V3 When the predetermined vacuum is established in the tank, the valve V3 is activated and opens the inlet valve 2, whereby the atmospheric pressure forces the . waste material including flush water into the tank 3. Then the inlet valve is again closed, and the waste material and the flush water are enclosed in the tank 3.
  • Valve V2 closes the pinch valve 17 to make the tank a closed volume.
  • valve V1 is activated, and air flows to the ejector 16, but because the pinch valve 17 is closed the airflows into the tank to establish a super- atmospheric pressure (ie higher than atmospheric pressure) in the tank 3.
  • the outlet valve 4 is opened, and the pressure in the tank forces the waste material out of the tank 3 and into a collecting tank in the vehicle.
  • the toilet has the following new features, which can also be implemented in toilets of different construction and function.
  • the toilet has a first pressure sensor 13 that senses values of the air pressure in the air inlet, and a second pressure sensor 15 that senses values of the air pressure in the tank 3, both throughout each cycle of operation of the toilet.
  • the controller 21 stores the sensed pressure values in a memory 20.
  • a temperature sensor 19 senses the ambient temperature, and in case the ambient temperature drops below a predetermined temperature slightly above the freezing temperature of water, the controller will initiate an emptying cycle and prevent the use of the toilet until the temperature again rises to a safe value with no risk of freezing.
  • Stored data representing the values sensed by the one or more sensors (13, 15, 18, 19) can be processed in the controller 21 , or the data can be transferred to a computer external to the toilet, eg to a centrally located computer.
  • the memory 20 can be a solid state memory or a removable storage medium that is moved with the data, or the transfer can be a wired or wireless transmission.
  • figure 2 is shown graphically the pressures in the air inlet and in the tank and the opening and closing of valves during a cycle of operation of the toilet of the invention.
  • Graphic presentation of the data is better suited for visual inspection by humans than figures in tables, which are more suited for processing in a computer.
  • the curves can be presented individually or as an average of several curves.
  • the data can be processed to show tendencies over time, and statistical calculations etc. can be made.
  • figure 2 is also shown the currents controlling the valves V1 - V5 in the valve block 14 and the signal from the reed switch 18 indicating the open or closed state of the inlet valve 2.
  • the time scale is the same in both parts of the figure, whereby the relative timing of events becomes clear.
  • the build-up of vacuum and pressure in the tank can be followed, and it can be determined if the capacity of the supply of compressed air is sufficient.
  • the error can be localised, and remedy of the malfunction can be suggested and carried out.
  • a toilet of the invention can have one or more, and any combination, of the sensors 13, 15, 18, 19 for sensing, during each cycle of operation of the toilet, the values of one or more of the air pressure in the air inlet 11 , the air pressure in the tank 3, the ambient temperature, the open or closed state of the inlet valve 2, and the open or closed state of the outlet valve 4.
  • the toilet of the invention can have a wireless transmitter, eg operating on a public mobile telephone network such as GSM or UMTS based networks, and it can be arranged to transmit a use and status report at regular intervals or in case of malfunction. These reports are received centrally, and in case of malfunction of a toilet the carrying vehicle can be called for repair.
  • a wireless transmitter eg operating on a public mobile telephone network such as GSM or UMTS based networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)

Abstract

L'invention concerne une toilette à aspiration dotée d'au moins un détecteur servant à détecter, pendant chaque cycle de fonctionnement de la toilette, les valeurs d'une ou de plusieurs données parmi la pression d'air dans l'admission d'air, la pression d'air dans le réservoir, la température ambiante, l'état ouvert ou fermé de la soupape d'admission, l'état ouvert ou fermé de la soupape de refoulement. Ceci permet un diagnostic complet et détaillé de la toilette ainsi qu'une documentation de l'état et de l'historique de la toilette. Un rapport d'essai comprenant un numéro de série individuel peut être émis et fourni au client avec la toilette, et des rapports d'essai peuvent servir de base destinée à démontrer l'historique de la toilette. En cas de mauvais fonctionnement, un rapport d'essai sert de base de diagnostic de la toilette et permet de décider l'action adéquate à entreprendre.
PCT/DK2006/000442 2005-08-12 2006-08-11 Toilette a aspiration WO2007019854A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05388065A EP1752589A1 (fr) 2005-08-12 2005-08-12 Une toilette sous vide
DK05388065.4 2005-08-12

Publications (1)

Publication Number Publication Date
WO2007019854A1 true WO2007019854A1 (fr) 2007-02-22

Family

ID=35517031

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2006/000442 WO2007019854A1 (fr) 2005-08-12 2006-08-11 Toilette a aspiration

Country Status (2)

Country Link
EP (1) EP1752589A1 (fr)
WO (1) WO2007019854A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014003059U1 (de) * 2014-04-10 2015-07-31 Evac Gmbh Pneumatische Kompakt-Vakuumtoilette
CN114729537A (zh) * 2019-11-15 2022-07-08 亚科阿尔曼欧洲两合公司 真空废水设备和方法

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007131512A1 (fr) * 2006-05-11 2007-11-22 Semvac A/S système de toilettes sous vide et procédé pour en commander les fonctions
AU2006350593A1 (en) * 2006-11-06 2008-05-15 Airvac, Inc Vacuum sewage system with wireless alarm
DE102009021969A1 (de) * 2009-05-19 2010-11-25 Airbus Deutschland Gmbh Toilettenmonument mit einer Aufnahme für eine mobile Sanitäreinheit
RU2486089C2 (ru) * 2010-09-03 2013-06-27 Общество С Ограниченной Ответственностью Научно-Производственный Центр "Экспресс" Туалетный комплекс
CN102561488B (zh) * 2012-01-12 2015-05-06 深圳绿恒环保科技有限公司 真空排污装置
CN103303328B (zh) * 2013-06-27 2016-06-29 宁波南车时代传感技术有限公司 动车用集便系统气动控制单元
US10001787B2 (en) 2014-06-02 2018-06-19 Aqseptence Group, Inc. Controller for vacuum sewage system
AT516581A1 (de) * 2014-12-04 2016-06-15 Walter Dipl Ing Lorenz Verfahren für den Betrieb einer Vakuum-Toilette
DE102018006919A1 (de) * 2018-08-31 2020-03-05 ACO Severin Ahlmann GmbH & Co Kommanditgesellschaft Vakuum-Abwasservorrichtung, Verfahren und elektronische Steuereinheit zur Steuerung einer Vakuum-Abwasservorrichtung
DE202020001171U1 (de) 2020-03-22 2020-04-21 Global Fliegenschmidt Gmbh Einrichtung zum Entleeren eines ein Absaugventil im Auslass aufweisenden Toilettenbeckens mit einem Fäkalientank und einer Vakuumpumpe
DE102021002000B3 (de) 2021-04-16 2022-07-21 Energietechnik Spreter GmbH Trenntoilette mit Absaugleitung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994016158A1 (fr) * 1993-01-16 1994-07-21 Sanivac Vakuumtechnik Gmbh Dispositif de commande du fonctionnement de w.-c. a aspiration
US5644802A (en) * 1993-09-21 1997-07-08 Evac Ab Vacuum sewer arrangement

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994016158A1 (fr) * 1993-01-16 1994-07-21 Sanivac Vakuumtechnik Gmbh Dispositif de commande du fonctionnement de w.-c. a aspiration
US5644802A (en) * 1993-09-21 1997-07-08 Evac Ab Vacuum sewer arrangement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014003059U1 (de) * 2014-04-10 2015-07-31 Evac Gmbh Pneumatische Kompakt-Vakuumtoilette
CN114729537A (zh) * 2019-11-15 2022-07-08 亚科阿尔曼欧洲两合公司 真空废水设备和方法

Also Published As

Publication number Publication date
EP1752589A1 (fr) 2007-02-14

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