EP0878587B1 - Installation d'évacuation des eaux usées sous vide - Google Patents

Installation d'évacuation des eaux usées sous vide Download PDF

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Publication number
EP0878587B1
EP0878587B1 EP98108444A EP98108444A EP0878587B1 EP 0878587 B1 EP0878587 B1 EP 0878587B1 EP 98108444 A EP98108444 A EP 98108444A EP 98108444 A EP98108444 A EP 98108444A EP 0878587 B1 EP0878587 B1 EP 0878587B1
Authority
EP
European Patent Office
Prior art keywords
pressure
source
tank
intermediate tank
vacuum
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.)
Expired - Lifetime
Application number
EP98108444A
Other languages
German (de)
English (en)
Other versions
EP0878587A1 (fr
Inventor
Wilfried Dipl.-Ing. Schulz
Werner-Dietmar Dipl.-Ing. Ulferts
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.)
Sterling Fluid Systems Germany GmbH
Sterling Fluid Systems GmbH
Original Assignee
Sterling Fluid Systems Germany GmbH
Sterling Fluid Systems 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 Sterling Fluid Systems Germany GmbH, Sterling Fluid Systems GmbH filed Critical Sterling Fluid Systems Germany GmbH
Publication of EP0878587A1 publication Critical patent/EP0878587A1/fr
Application granted granted Critical
Publication of EP0878587B1 publication Critical patent/EP0878587B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B29/00—Accommodation for crew or passengers not otherwise provided for
    • B63B29/16—Soil water discharges
    • 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 waste water discharge system with a connected to wastewater sources, constantly under pressure Recording tank that periodically in one Collection container can be emptied.
  • a vacuum waste water discharge system is known (US-A-5078174), where the wastewater from wastewater sources such as houses sucked into a vacuum tank under vacuum becomes.
  • the wastewater sources have their own, under atmospheric pressure standing gravity collection tanks, which only when needed be emptied into the vacuum sewage system; therefore, this does not have to be constantly receptive. For emptying of the receiving tank are those from the above. Disadvantageous reasons Dirty water pumps provided.
  • a wastewater discharge system in which a Vacuum tank with a waste water source is connected (DE-U-91 04 935). Except for the holding tank if the system has only one other container, into which the waste water from the receiving tank is pressurized is pumped. A constant willingness to accept is not ensured with this system.
  • the dirty water pump is thereby dispensable that the waste water in the conveyor path from the waste water sources to the collection container with no pump in contact comes.
  • the promotion from the receiving tank to the collecting container takes place through a pressure difference. So that the receiving tank anyway is always operational and pressurized can be a geodetically lower one and connected to it via a lockable drain line Assigned intermediate tank, which with a drain line the collection container is connected.
  • the drain pipe opened so that the accruing in the receiving tank Waste water drains into the intermediate tank due to its gravity. If the emptying is to take place, the intermediate tank shut off from the receiving tank, and possibly the drain line opened to the collection container. Then there will be a pressure difference created the contents of the intermediate tank in the Collection container drives. Then the intermediate tank with the Receiving tank reconnected.
  • a control device can be provided for this purpose be, which actuates the shut-off devices and the pressure difference and finally the one to initiate the Emptying required operations.
  • the arrangement is advantageously made such that the pressure source to create a super-atmospheric Pressure is set up while the collection container with the Atmosphere in pressure equalization. In this case it is necessary the drain line during normal operation close.
  • negative and positive pressure are according to another feature of the invention separate, preferably identical vacuum pumps or compressors intended. Liquid ring machines are particularly suitable for this. Instead, it can also be provided that a vacuum pump normally used as a vacuum source during the emptying periods as a compressor for Generation of the superatmospheric pressure is switchable.
  • the receiving tank or one in addition to this provided buffer container so large that the vacuum contained therein for the recording operation during the emptying phases are sufficient.
  • a gas pump used as a vacuum source constantly to be conveyed into a buffer container, which as Pressure source serves in the emptying periods. This buffer tank empties during each emptying period and then fills up to the next one.
  • the collection container is under atmospheric pressure or a pressure close to it.
  • the pressure source with the help of which the emptying is carried out in this case a correspondingly higher pressure, which is several bars can be if there are major differences in height or distances are to be overcome.
  • the invention wants such statements not exclude where the collection container during normal operation as well as the holding tank and the intermediate tank is under vacuum and the discharge pressure difference is generated in that the of the receiving tank locked intermediate tank is ventilated atmospherically. In in this case the drain line from the intermediate tank is required not be lockable to the collection container.
  • a line 3 with a check valve 4 is the receiving tank 1 on the suction side of a water ring pump 5 connected, which applies a vacuum to it.
  • the vacuum pump 5 is on the pressure side connected to a liquid separator 7 via line 6, which the gas extracted from the receptacle from the separates operating fluid entrained in the pump 5.
  • the Gas is passed into the atmosphere via line 8, to the extent it is not, as described below, for other purposes is used.
  • the accumulating in the liquid separator 7 Liquid is returned to pump 5 via line 9. Loss of liquid is via a fresh water connection 10 depending on the liquid level in the liquid separator 7 replaced.
  • the vacuum pump 5, in its place depending on the required Performance and operational security also include a variety of pumps is generally in constant operation in the Times when wastewater can accumulate.
  • the receiving tank 1 is therefore always ready to take pictures.
  • a line 11 with shut-off device 12 connected to an intermediate tank 13.
  • Line 11 including shut-off device 12 is dimensioned and arranged so that the waste water accumulating in the holding tank 1 together with all Foreign matter contained therein constantly in the intermediate tank 13 expires.
  • a gas suspension line 14 with shut-off device 15 leads the gas displaced in the intermediate tank 13 into the receiving tank 1 back so that the gravitational drain through line 11 is not inhibited.
  • a line 16 leading from the intermediate tank 13 extends into the upper area of the receiving tank 1 contains a pressure sensor 17, the signal of the static pressure in Depicts intermediate tank 13 and, if appropriate, in the receiving tank 1. When a certain level is reached, that of the filling corresponds to the intermediate tank 13, the emptying process initiated. If a certain higher pressure is found is that the filling of the receiving tank 1 signals that must not occur when emptying takes place normally, this can be interpreted as a fault signal become.
  • the intermediate tank 13 is emptied via an emptying line 19 with shut-off device 20 instead of that to that leads shown collection container.
  • a compressor 21 is provided (there may also be several), preferably the same like the vacuum pump 5 from a liquid ring machine can be formed. It is expediently identical to this.
  • the compressor 21 is on the suction side via a suction line 22 with check valve 23 to the exhaust line 8 of the vacuum pump 5 connected. Its printed page leads over one Line 24 to the liquid separator 25, of which the separated Operating fluid via line 26 in the compressor 21 is returned. Loss of operating fluid will balanced over the fresh water line 27. From the liquid separator 25 leads a compressed air line 28 with a membrane shut-off valve 29 to the intermediate tank 13 or to it connected line 11.
  • a control device 18 is provided, which is periodic controls the emptying of the intermediate tank 13. she will expediently caused by the pressure sensor 17 indicates a predetermined fill level of the intermediate tank 13. Instead, it can also be provided that in each case emptying takes place after predetermined time periods. If according to one mentioned in the introduction to the description Embodiment no separate compressor is provided but pumps the vacuum pump 5 into a pressure vessel, that serves as a pressure source for emptying, can Drainage game can also be caused by the fact that in this Pressure vessel measured reaching a predetermined pressure becomes.
  • the control device first causes the closing the shut-off devices 12 and 15 in the lines 11 and 14, the connect the receiving tank 1 to the intermediate tank 13.
  • the Line 16 is closed anyway by the pressure sensor. After that opens the normally closed shut-off device 29 in line 28 leading from the pressure source to the intermediate tank 13 leads and switches on the compressor 21. After that the shut-off device 20 in the drain line 19 opened.
  • the overpressure generated by the compressor 21 in the intermediate tank 13 then drives its content through the drain line 19 out.
  • the sensor 17 reports that the liquid level in the Intermediate tank 13 has dropped sufficiently, or if necessary even after a sufficient period of time the emptying phase is ended by the compressor 21 being switched off is, and the shut-off devices 20 and 29 are closed and the shut-off devices 12 and 15 opened.
  • the compressor 21 removes that from it during operation conveyed air of line 8 or, if this is not sufficient, the atmosphere.

Landscapes

  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Jet Pumps And Other Pumps (AREA)

Claims (6)

  1. Installation d'évacuation des eaux usées sous vide comprenant un réservoir de réception (1) raccordé à des sources d'eaux usées, qui est maintenu en permanence sous dépression et qui peut être vidé périodiquement dans un récipient collecteur, caractérisée en ce qu'un réservoir intermédiaire (13) disposé géodésiquement plus bas que le réservoir de réception (1) et relié à ce dernier par l'intermédiaire d'une conduite d'écoulement (11) pouvant être fermée est prévu, qui est relié au récipient collecteur par l'intermédiaire d'une conduite d'évacuation (19), et en ce qu'une source de pression (21) pour générer une pression supérieure à la pression régnant dans le récipient collecteur est reliée au réservoir intermédiaire (13) à l'aide d'une conduite (28) pouvant être fermée.
  2. Installation selon la revendication 1, caractérisée en ce que la source de pression (21) est prévue pour générer une pression supérieure à la pression atmosphérique, et en ce que le récipient collecteur en compensation de pression avec l'atmosphère peut être fermé par rapport au réservoir intermédiaire (13).
  3. Installation selon la revendication 2, caractérisée en ce que des pompes à vide et des compresseurs distincts, de préférence de construction identique, sont prévus comme sources de dépression et de surpression.
  4. Installation selon la revendication 2, caractérisée en ce qu'une pompe à vide utilisée normalement comme source de dépression peut servir pendant les périodes d'évacuation de compresseur pour générer la pression supérieure à la pression atmosphérique.
  5. Installation selon la revendication 7, caractérisée en ce qu'une pompe à gaz utilisée comme source de dépression refoule dans un récipient tampon servant de source de pression.
  6. Installation selon l'une quelconque des revendications 1 à 5, caractérisée en ce qu'un dispositif de commande (18) est prévu pour la commande automatique des fonctions d'évacuation.
EP98108444A 1997-05-12 1998-05-08 Installation d'évacuation des eaux usées sous vide Expired - Lifetime EP0878587B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29708445U DE29708445U1 (de) 1997-05-12 1997-05-12 Abwasser-Abführungsanlage
DE29708445U 1997-05-12

Publications (2)

Publication Number Publication Date
EP0878587A1 EP0878587A1 (fr) 1998-11-18
EP0878587B1 true EP0878587B1 (fr) 2003-04-23

Family

ID=8040235

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98108444A Expired - Lifetime EP0878587B1 (fr) 1997-05-12 1998-05-08 Installation d'évacuation des eaux usées sous vide

Country Status (2)

Country Link
EP (1) EP0878587B1 (fr)
DE (2) DE29708445U1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6065493A (en) * 1998-05-22 2000-05-23 Sealand Technology, Inc. Vacuum relief valve for sewage holding tank
FI20001759A0 (fi) * 2000-08-07 2000-08-07 Evac Int Oy Alipaineviemärijärjestelmä
DE102004005525B4 (de) * 2004-02-03 2009-10-15 Rolf-Dieter Klaeke Vorrichtung und Verfahren zum Sammeln von Abwasser auf Schiffen mittels Vakuum
HRPK20050906B3 (en) * 2005-10-18 2009-06-30 Tvornica Turbina D.O.O. Marine waste water treatment device
DE102011016243A1 (de) 2011-04-06 2012-10-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Sonderentwässerungssystem

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2050775A5 (fr) 1969-06-24 1971-04-02 Baudot Hardoll
US5078174A (en) 1989-06-15 1992-01-07 Burton Mechanical Contractors, Inc. Vacuum sewerage system having non-jamming vacuum valves with tapered plungers
DE9104935U1 (de) * 1991-04-23 1991-08-29 Haatanen, Rauno, 2000 Hamburg Ablaufsystem für die Ablaufmasse einer Ablaufmasse produzierenden Einheit

Also Published As

Publication number Publication date
DE29708445U1 (de) 1998-09-10
DE59808011D1 (de) 2003-05-28
EP0878587A1 (fr) 1998-11-18

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