WO2003004785A1 - Systeme d'evacuation depressurise - Google Patents

Systeme d'evacuation depressurise Download PDF

Info

Publication number
WO2003004785A1
WO2003004785A1 PCT/FI2002/000571 FI0200571W WO03004785A1 WO 2003004785 A1 WO2003004785 A1 WO 2003004785A1 FI 0200571 W FI0200571 W FI 0200571W WO 03004785 A1 WO03004785 A1 WO 03004785A1
Authority
WO
WIPO (PCT)
Prior art keywords
rinse fluid
valve
sewer system
vacuum
sewage
Prior art date
Application number
PCT/FI2002/000571
Other languages
English (en)
Inventor
Detlev Both
Original Assignee
Evac International Oy
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 Evac International Oy filed Critical Evac International Oy
Publication of WO2003004785A1 publication Critical patent/WO2003004785A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D3/00—Flushing devices operated by pressure of the water supply system flushing valves not connected to the water-supply main, also if air is blown in the water seal for a quick flushing
    • E03D3/10—Flushing devices with pressure-operated reservoir, e.g. air chamber
    • 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 invention relates to a vacuum sewer system according to the preamble of claim 1 .
  • Vacuum sewer systems of this kind are previously known. Vacuum sewer systems, particularly vacuum toilet systems, require a number of components for their function.
  • the system includes e.g. a sewer valve, a sewer pipe, vacuum generation means, control means, rinse water means, etc..
  • the space requirement of all the components is rather large, which may cause installation problems.
  • the different control means, including valves, piping, cabling, etc. also, in addition to increased space requirement, raise costs.
  • the objective of the present invention is to achieve a vacuum sewer system, by which the above mentioned disadvantages are avoided and which provides a system with a reliable function by simple means.
  • the basic idea of the invention is to provide a simple and compact arrangement for the rinse fluid supply, the function of which is dependent on a reduced number of external components. This is arranged by providing a rinse fluid container, which has a self-regulating rinse fluid supply function provided by an internal float means operably connected to a valve means.
  • the advantage of this arrangement is that the container volume can be kept small and that the need for internal and external control means, e.g. rinse fluid level sensors and fluid solenoid valves with respective controls, are eliminated.
  • the rinse fluid container advantageously has a substantially cylindrical and elongate configuration, whereby it is provided with an insertable support means, comprising the rinse fluid inlet port, a lever means for acting on the valve means, and a central guide bar for receiving the float means. This facilitates assembly and disassembly of the rinse fluid container.
  • Employing the lever means advantageously provides for providing sufficient force to close the valve means even when using a smaller float means.
  • the float means advantageously has a substantially hollow cylindrical configuration, which is open in a direction opposite to the valve means. This makes the float means resistant to high pressures even with a limited or thin wall thickness.
  • the float means can controllably be displaced between an upper first position, in which it acts on the lever means in order to close the valve means, and a lower second position, in which it releases the lever means.
  • valve means advantageously comprise a valve seat and a valve body, whereby the valve seat is arranged at the inlet port for rinse fluid and the valve body comprises a valve plate of flexible material.
  • valve seat is advantageously provided with a ring-formed sealing surface with a relatively small width in order to increase the unit surface pressure.
  • valve plate is advantageously provided with a central support plate of rigid material, whereby the closing effect by the lever means is enhanced as well as the pressure resistance of the valve plate.
  • the rinse fluid container is provided with an inlet port for pressurised air for emptying the same.
  • Fig. 1 shows a general diagram of a vacuum sewer system
  • Fig. 2 shows a sectional view of the rinse fluid container
  • Figs. 3 and 4 show enlarged sectional views of the rinse fluid container.
  • Fig.1 shows a general flow diagram of a vacuum sewer system according to the invention.
  • the vacuum sewer system comprises a source of sewage, i.e. a toilet unit 1 , comprising a toilet bowl 10.
  • the toilet bowl 1 0 is connected through a first discharge valve 3 to a first sewer pipe 2, which leads to a sewage receptacle, in this case an intermediate sewage container 4.
  • a second sewer pipe 6 leads to a sewage tank 7 through a second sewer valve 5.
  • Vacuum is provided to the intermediate sewage container 4 by a vacuum generation means 9, e.g. a vacuum pump or an ejector device.
  • the sewage tank 7 is provided with a ventilation means 8 in order to provide atmospheric pressure in the sewage tank 7.
  • the system is further provided with rinse fluid means for providing rinse fluid to the toilet bowl 1 0 in connection with drainage or flushing of the toilet unit 1 .
  • the rinse fluid means comprise a rinse fluid tank 1 1 in fluid communication with a rinse fluid container 20 through a rinse fluid pipe 1 2.
  • Rinse fluid is supplied to the toilet bowl 1 0 from the rinse fluid container 20 through a rinse fluid conduit 1 3 and rinse fluid nozzles 1 4 arranged in the toilet bowl 1 0.
  • the drainage or flushing cycle of the system generally follows the following phases.
  • the toilet bowl 1 0 contains an initial supply of rinse fluid, whereby the rinse fluid container 20 is also filled.
  • the first discharge valve 3 and the second discharge valve 5 are closed and vacuum is provided in the intermediate container 4 by the vacuum generation means 9.
  • the discharge function is activated by a control center 1 5, whereby the first discharge valve 3 is opened and pressurised air is supplied to the rinse fluid container 20 from a pressurised air conduit 1 6.
  • the first discharge valve 3 is closed, whereby the supply of rinse fluid to the toilet bowl 1 0 is continued for a while, before the supply of pressurised air to the rinse fluid container 20 is stopped, in order to provide the toilet bowl 1 0 with an initial supply of rinse fluid (cf. above) for a following drainage or flushing function.
  • the sewage is transported from the intermediate sewage container 4 to the sewage tank 7 by directing pressurised air to the intermediate sewage container 4 and then opening the second discharge valve 5, which initially by a pressure pulse forces the sewage to empty from the intermediate sewage container 4 into the sewage tank 7 through the second sewer pipe 6.
  • rinse fluid from the rinse fluid tank 1 1 is allowed to flow into the rinse fluid container 20 to refill said container for the following drainage or flushing function.
  • Fig. 2 shows a sectional view of the rinse water container 20 employed in the present invention.
  • the rinse water container has a substantially cylindrical and elongate configuration and is provided with an inlet port 21 for rinse fluid, an inlet port 22 for pressurised air and an outlet port 23 for rinse fluid.
  • the inlet port 21 for rinse fluid is in fluid communication with the rinse water tank 1 1 through the rinse fluid pipe 1 2 as described above.
  • the rinse fluid container 20 is provided with a support means 24 arranged at the upper end of the rinse fluid container.
  • the support means has an upper flange portion 25, which forms the rinse fluid inlet port 21 and a lower portion, which forms a guide bar 26 extending into the rinse fluid container 20.
  • the upper flange portion 25 and the lower portion are connected by a threaded connection.
  • a valve means comprising a valve seat 27 and a valve plate 28 of a flexible material, is arranged in the rinse fluid inlet port 21 .
  • the guide bar 26 is arranged to slidingly receive a float means 29.
  • the float means 29 has a substantially hollow cylindrical configuration, which is open in a direction opposite to the valve means. By giving the float means 29 a hollow, downwards turned cup-formed configuration, the float means 29 can stand high pressures (discussed below) even with a limited or thin wall thickness.
  • the length L of the guide bar 26 is longer than the height H of the float means 29, so that the float means 29 can be displaced between an upper first position (Fig. 4) and a lower second position (Fig. 3).
  • the float means 29 is retained on the guide bar 26 by projections 30 (Fig. 3) at the lower end of the guide bar 26.
  • the guide bar 26 is further provided with a central slot 31 or incision at the lower end, so that the projections 30 can be pushed together in order to remove the float means 29 from the guide bar 26.
  • the flange portion 25 of the support means 24 is fastened by a threaded connection to the rinse fluid container 20 body, so that the support means 24 and the thereto attached components can be removed from the container as the float means is removed from the guide bar.
  • the support means 24 is provided with a lever means 32 arranged at an upper end of the guide bar 26.
  • the float means 29, in its upper first position (Fig. 4), is arranged to act on the lever means 32 in order to close the valve means.
  • the rinse water container 20 is advantageously made of a plastics material, whereby a typical size would be about 0.7 litre.
  • Fig. 3 the rinse water container 20 is shown with the valve means in an open position, in which rinse fluid from the rinse fluid tank 1 1 may flow into the rinse fluid container 20 through the rinse fluid inlet port 21 .
  • the float means 29 is in its lower second position, whereby the lever means 32 is accordingly released.
  • the valve plate 28, which is of a flexible material, e.g. rubber, is arranged between an abutment of the support means 24 flange portion 25 and the valve seat 27, and due to the flow pressure of the in-flowing rinse fluid, the valve plate 28 is released (Fig. 3) allowing the rinse fluid to flow (shown by arrows) through the valve means into the rinse water container 20.
  • the inner diameter of the valve seat 27 can be varied with respect to the pressure of the in-flow of the rinse water fluid. As the rinse fluid level rises to a given fill level in the rinse fluid container
  • the lever means 32 is pivotably connected to the support means 24 at a point 33 laterally displaced from the valve means.
  • the valve plate 28 is provided with a central support plate 34 of rigid material, which the lever means 32 acts upon and thus secures the closing of the valve means and which also provides for better resistance of the valve plate to higher pressures (discussed below).
  • the sealing surface of the valve plate 28 against the valve means 27 is advantageously ring-formed and of a relatively small width in order to attain a higher unit surface pressure to secure sealing.
  • pressurised air usually at a pressure of about 6 to 8 bar, is supplied through the pressurised air inlet port 22.
  • the rinse fluid is discharged through the rinse fluid outlet port 23 via the rinse fluid pipe 1 3 and the rinse fluid nozzles 14 into the toilet bowl 1 0.
  • the float means 29 slides down to its lower second position (Fig. 3) and rests on the projections 30.
  • the valve means still remains closed due to the high pressure in the rinse fluid container 20.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sanitary Device For Flush Toilet (AREA)
  • Sewage (AREA)

Abstract

La présente invention concerne un système d'évacuation dépressurisé comprenant une source d'eaux usées, un tuyau d'évacuation, un premier clapet d'évacuation disposé entre la source d'eaux usées et le tuyau d'évacuation, un élément (20) destiné à l'apport de liquide de rinçage à la source d'eaux usées, un réceptacle d'eaux usées et un élément de production de dépression destiné à produire une dépression dans le tuyau d'évacuation. Afin d'obtenir un élément à liquide de rinçage compact et auto-régulé, le système comprend un récipient de liquide de rinçage (20) présentant un orifice d'entrée de liquide de rinçage (21), un système de clapet (27, 28) disposé au niveau de l'orifice d'entrée de liquide de rinçage (21), un élément flottant (29) disposé à l'intérieur du récipient de liquide de rinçage (20) relié d'un point de vue fonctionnel audit système de clapet (27,28) en réponse à un niveau de remplissage de liquide de rinçage dans le récipient de liquide de rinçage (20), et un orifice de sortie de liquide de rinçage (23).
PCT/FI2002/000571 2001-07-02 2002-06-27 Systeme d'evacuation depressurise WO2003004785A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20011431A FI110538B (fi) 2001-07-02 2001-07-02 Alipaineviemärijärjestelmä
FI20011431 2001-07-02

Publications (1)

Publication Number Publication Date
WO2003004785A1 true WO2003004785A1 (fr) 2003-01-16

Family

ID=8561559

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2002/000571 WO2003004785A1 (fr) 2001-07-02 2002-06-27 Systeme d'evacuation depressurise

Country Status (3)

Country Link
FI (1) FI110538B (fr)
TW (1) TW585956B (fr)
WO (1) WO2003004785A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20301649U1 (de) * 2003-02-03 2004-06-17 Evac Gmbh Vakuumtoilette
EP1698735A1 (fr) * 2005-01-25 2006-09-06 Toral Technical Trade, S.L. Système de toilette à vide et à pression
WO2008128952A1 (fr) * 2007-04-19 2008-10-30 Airbus Operations Gmbh Système de toilettes à aspiration destiné au transport d'eaux usées et à la collecte d'eaux usées dans un aéronef
CN101906803A (zh) * 2010-07-29 2010-12-08 辉煌水暖集团有限公司 一种智能吸污坐便器
CN102155043A (zh) * 2011-03-26 2011-08-17 邝礼根 一种气压式冲洗水箱
WO2013172953A1 (fr) * 2012-05-17 2013-11-21 Mag Aerospace Industries, Inc. Chasse en deux temps et systèmes et dispositifs de chasse à eaux grises
CN103541412A (zh) * 2012-07-12 2014-01-29 连江县宏大激光测量仪器研究所 坐便器0.5-1升水喷厕水箱水位增压的装置
DE202013004015U1 (de) * 2013-04-30 2014-08-01 Evac Gmbh Pneumatische Steuerung für eine Vakuumtoilette
US9182042B2 (en) 2013-03-15 2015-11-10 Mag Aerospace Industries, Llc Mixed media orbital valve
US9371135B2 (en) 2012-05-17 2016-06-21 Mag Aerospace Industries, Llc Toilet concepts
US9458028B2 (en) 2012-11-16 2016-10-04 Mag Aerospace Industries, Llc Mixed fluid filtration system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202020106645U1 (de) * 2020-11-19 2020-12-03 Trainvac GmbH Vakuumtoilette

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5692250A (en) * 1989-08-15 1997-12-02 Oy Wartsila Ab Vacuum toilet system with treated rinse liquid
DE20001004U1 (de) * 2000-01-21 2000-05-04 Sanivac Vakuumtechnik Gmbh Rückschlag-Ventil für ein indirekt angesteuertes Magnetventil
WO2000036235A1 (fr) * 1998-12-17 2000-06-22 Ido Bathroom Ltd Dispositif de chasse d'eau sans contact
US6085366A (en) * 1999-07-02 2000-07-11 Evac International Oy Apparatus for supplying pressurized rinse water to a toilet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5692250A (en) * 1989-08-15 1997-12-02 Oy Wartsila Ab Vacuum toilet system with treated rinse liquid
WO2000036235A1 (fr) * 1998-12-17 2000-06-22 Ido Bathroom Ltd Dispositif de chasse d'eau sans contact
US6085366A (en) * 1999-07-02 2000-07-11 Evac International Oy Apparatus for supplying pressurized rinse water to a toilet
DE20001004U1 (de) * 2000-01-21 2000-05-04 Sanivac Vakuumtechnik Gmbh Rückschlag-Ventil für ein indirekt angesteuertes Magnetventil

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20301649U1 (de) * 2003-02-03 2004-06-17 Evac Gmbh Vakuumtoilette
EP1698735A1 (fr) * 2005-01-25 2006-09-06 Toral Technical Trade, S.L. Système de toilette à vide et à pression
ES2288341A1 (es) * 2005-01-25 2008-01-01 Toral Technical Trade, S.L. Instalacion autonoma de vacio y presion de inodoro.
WO2008128952A1 (fr) * 2007-04-19 2008-10-30 Airbus Operations Gmbh Système de toilettes à aspiration destiné au transport d'eaux usées et à la collecte d'eaux usées dans un aéronef
CN101906803A (zh) * 2010-07-29 2010-12-08 辉煌水暖集团有限公司 一种智能吸污坐便器
CN102155043A (zh) * 2011-03-26 2011-08-17 邝礼根 一种气压式冲洗水箱
CN102155043B (zh) * 2011-03-26 2013-02-13 邝礼根 一种气压式冲洗水箱
US9371135B2 (en) 2012-05-17 2016-06-21 Mag Aerospace Industries, Llc Toilet concepts
CN104334452A (zh) * 2012-05-17 2015-02-04 玛格太空工业有限责任公司 两阶段冲洗和灰水冲洗***以及装置
WO2013172953A1 (fr) * 2012-05-17 2013-11-21 Mag Aerospace Industries, Inc. Chasse en deux temps et systèmes et dispositifs de chasse à eaux grises
US9701410B2 (en) 2012-05-17 2017-07-11 Mag Aerospace Industries, Llc Two-stage flush and grey water flush systems and devices
US10214289B2 (en) 2012-05-17 2019-02-26 Mag Aerospace Industries, Llc Two-stage flush and grey water flush systems and devices
CN103541412A (zh) * 2012-07-12 2014-01-29 连江县宏大激光测量仪器研究所 坐便器0.5-1升水喷厕水箱水位增压的装置
US9458028B2 (en) 2012-11-16 2016-10-04 Mag Aerospace Industries, Llc Mixed fluid filtration system
US9182042B2 (en) 2013-03-15 2015-11-10 Mag Aerospace Industries, Llc Mixed media orbital valve
US9441739B2 (en) 2013-03-15 2016-09-13 Mag Aerospace Industries, Llc Mixed media orbital valve
DE202013004015U1 (de) * 2013-04-30 2014-08-01 Evac Gmbh Pneumatische Steuerung für eine Vakuumtoilette

Also Published As

Publication number Publication date
TW585956B (en) 2004-05-01
FI20011431A0 (fi) 2001-07-02
FI110538B (fi) 2003-02-14

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