EP1291468A2 - Systeme d'evacuation a vide equipe d'une citerne d'eaux residuelles de retenue temporelle - Google Patents

Systeme d'evacuation a vide equipe d'une citerne d'eaux residuelles de retenue temporelle Download PDF

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Publication number
EP1291468A2
EP1291468A2 EP01945352A EP01945352A EP1291468A2 EP 1291468 A2 EP1291468 A2 EP 1291468A2 EP 01945352 A EP01945352 A EP 01945352A EP 01945352 A EP01945352 A EP 01945352A EP 1291468 A2 EP1291468 A2 EP 1291468A2
Authority
EP
European Patent Office
Prior art keywords
tank
outlet pipe
disposal system
discharge valve
wastewater
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.)
Withdrawn
Application number
EP01945352A
Other languages
German (de)
English (en)
Inventor
Miguel De Sagarra Conde
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.)
Tecnicas Modulares e Industriales SA
Original Assignee
Tecnicas Modulares e Industriales SA
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 Tecnicas Modulares e Industriales SA filed Critical Tecnicas Modulares e Industriales SA
Publication of EP1291468A2 publication Critical patent/EP1291468A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D35/00—Sanitation
    • B61D35/005—Toilet facilities
    • B61D35/007—Toilet facilities comprising toilet waste receiving, treatment, storage, disposal or removal devices

Definitions

  • the present invention relates to a vacuum disposal system with wastewater temporary retention tank for railway carriages, of the type that includes a wastewater tank to which is connected at least one toilet bowl and which has an outlet pipe with a discharge valve.
  • Vacuum disposal systems for railways involve the fitting of toilets whose outlets have traditionally been connected to a wastewater collector tank of high capacity. This tank must be emptied at intervals, for example when the train reaches one of the ends of its route, and this naturally complicates and increases the cost of maintenance of the installation.
  • Some recent systems include an intermediate tank, having a volume of four or five litres, connected to each toilet bowl, so that one dose of wastewater passes rapidly and with low energy consumption from the bowl to the intermediate tank, and this intermediate tank later discharges into a larger tank, which is emptied at intervals.
  • This design improves the efficiency of the system, due to the fact that it requires lower consumption for emptying the contents of the toilet bowl into the intermediate tank, but it does not eliminate the above-mentioned disadvantages associated with the maintenance, volume and weight of the system.
  • the object of the present invention is to solve the aforesaid disadvantages by developing a vacuum-disposal system that does not require maintenance and occupies a small space.
  • the vacuum-disposal system of the present invention is characterised in that said tank is placed under the floor of the railway carriage and in that said outlet pipe is open at its bottom part facing down on to the track, the discharge valve being connected to a control module.
  • the wastewater tank can be emptied automatically when the train is running through an uninhabited zone, thereby eliminating the need for maintenance operations related with emptying of the tank. Furthermore, the tank can be small in size and of low weight.
  • the tank is substantially cylindrical and is placed vertically underneath the floor of the carriage, the outlet pipe being connected at its bottom part.
  • a tank of these characteristics can be emptied by gravity or under pressure.
  • the tank has associated therewith a level detector; the emptying process can thus be activated either after a certain number of operating cycles or when a certain level of wastewater is reached, thereby preventing excessive filling of the tank from occurring.
  • the tank has a volume of between five and twenty litres; in a preferred embodiment, it has a volume of about ten litres.
  • the system essentially comprises a toilet bowl 1, a wastewater tank 2 to which is connected the outlet from the bowl 1 through a cut-off valve 3 and a pipe 4, a pneumatic unit 5 which includes electrically-operated valves for controlling the various organs of the system and an ejector for causing vacuum into the tank 2, and a control module 6.
  • the tank 2 is mounted underneath the floor P of the carriage and has at its lower part an outlet pipe 7 with a discharge valve 8, governed by the control module 6, as will be explained below.
  • the outlet pipe 7 is open at its lower part, so that the wastewater discharged from the tank 2 drops onto the track.
  • a level detector 9 Associated with the tank, provision is also made for a level detector 9, whose signal is supplied to the control module 6.
  • the tank 2 can have a capacity of some ten litres, although this figure is not restrictive; in any case, the volume of the tank 2 must be suitable for housing at least some wastewater discharge units from the toilet bowl 1.
  • the pneumatic assembly 5 and the control module 6 have connections (in general not shown) to the various pneumatic and electrical components of the system.
  • the ejector (not shown) of the pneumatic assembly 5 is connected through a pipe 10 to the tank 2, such as to cause a depression therein, synchronised with the opening of the cut-off valve 3 and with the discharge of water in the toilet bowl 1, all this with the function that a unit of wastewater passes from the toilet bowl 1 to the tank 2.
  • the discharge valve 8 from the tank is controlled by one of the electrically-operated valves of the pneumatic assembly 5, which is in turn governed by the control module, as will be described below.
  • the contents of the tank are emptied onto the track when the conditions are appropriate, that is, away from inhabited centres.
  • the control module 6 governs the discharge from the tank by opening the discharge valve 8 when, following completion of a predetermined number of toilet bowl discharge cycles, or once a certain level in the tank (indicated by the level detector 9) has been reached, the train is travelling at a speed higher than a predetermined threshold, for example 40 km/h. This ensures that the train is in an uninhabited zone; furthermore, thanks to the speed of the train, the discharge takes place over a relatively long section of the track, thereby minimising its impact.
  • the tank of the system of the invention can be of relatively low volume and occupy little space, and at the same time it does not require intervention at intervals in order to empty it.
  • the emptying of the tank can occur simply by gravity or by simultaneously inducing a partial pressure in the tank itself through a suitable connection (not shown in the figures) with an element of the pneumatic assembly.
  • the operating parameters of the discharge such as the number of cycles before the discharge is carried out, or the cited threshold speed, will depend on the characteristics of the system and on the zone through which the train is travelling, and will preferably be programmable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Mechanical Engineering (AREA)
  • Sanitary Device For Flush Toilet (AREA)
  • Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
EP01945352A 2000-06-12 2001-06-08 Systeme d'evacuation a vide equipe d'une citerne d'eaux residuelles de retenue temporelle Withdrawn EP1291468A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES200001569U 2000-06-12
ES200001569U ES1046526Y (es) 2000-06-12 2000-06-12 Sistema de evacuacion por vacio con deposito de aguas residuales de retencion temporal.
PCT/ES2001/000237 WO2001096674A2 (fr) 2000-06-12 2001-06-08 Systeme d'evacuation a vide equipe d'une citerne d'eaux residuelles de retenue temporelle

Publications (1)

Publication Number Publication Date
EP1291468A2 true EP1291468A2 (fr) 2003-03-12

Family

ID=8494002

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01945352A Withdrawn EP1291468A2 (fr) 2000-06-12 2001-06-08 Systeme d'evacuation a vide equipe d'une citerne d'eaux residuelles de retenue temporelle

Country Status (4)

Country Link
EP (1) EP1291468A2 (fr)
CN (1) CN1383410A (fr)
ES (1) ES1046526Y (fr)
WO (1) WO2001096674A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20091005A1 (it) * 2009-12-21 2011-06-22 Gen Vacuum S R L Sistema e metodo per lo scarico di liquami dai veicoli
WO2014090500A1 (fr) * 2012-12-14 2014-06-19 Siemens Aktiengesellschaft Véhicule ferroviaire équipé d'une conduite d'eau grise protégée contre les coups de bélier

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100467320C (zh) * 2005-07-07 2009-03-11 浙江工业大学 一种火车车厢厕所中的排污装置
EA016970B8 (ru) * 2009-09-15 2012-10-30 Ооо Нпц "Экспресс" Запорное устройство для труб бака накопителя
DE202011002009U1 (de) 2011-01-27 2012-04-30 Hugo Vogelsang Maschinenbau Gmbh Absaugkupplung
DE202014003059U1 (de) * 2014-04-10 2015-07-31 Evac Gmbh Pneumatische Kompakt-Vakuumtoilette
CN106080635A (zh) * 2016-06-30 2016-11-09 中铁伟业（宁波）轨道交通装备有限公司 一种气固液分离装置
CN107472278B (zh) * 2017-08-08 2018-03-23 何莉 一种自动排污方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2613186A (en) * 1952-10-07 Cleaning composition
US1536823A (en) * 1920-05-08 1925-05-05 Dobson Albert Undercar waste bowl
US1501150A (en) * 1923-03-31 1924-07-15 Ebb Warren Toilet for passenger cars
US1604456A (en) * 1925-08-31 1926-10-26 Abraham L Levy Railroad toilet
DE19523702A1 (de) * 1995-06-29 1997-01-02 Guenther Buehler Toilette für Schienenfahrzeuge, insbesondere Reisezugwagen
DK171589B1 (da) * 1996-01-19 1997-02-10 Abb Daimler Benz Transp Sanitetscelle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0196674A3 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20091005A1 (it) * 2009-12-21 2011-06-22 Gen Vacuum S R L Sistema e metodo per lo scarico di liquami dai veicoli
EP2338761A1 (fr) 2009-12-21 2011-06-29 General Vacuum s.r.l. Système et procédé d'évacuation des eaux usées d'un véhicule
WO2014090500A1 (fr) * 2012-12-14 2014-06-19 Siemens Aktiengesellschaft Véhicule ferroviaire équipé d'une conduite d'eau grise protégée contre les coups de bélier
US9758179B2 (en) 2012-12-14 2017-09-12 Siemens Aktiengesellschaft Rail vehicle with pressure surge-safe graywater line

Also Published As

Publication number Publication date
WO2001096674A2 (fr) 2001-12-20
CN1383410A (zh) 2002-12-04
WO2001096674A3 (fr) 2002-04-11
ES1046526U (es) 2001-01-01
ES1046526Y (es) 2001-06-01

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