EP1307620B1 - Reservoir de liquide, dispositif de pompage pour un tel reservoir, et procede de vidange de reservoir de liquide - Google Patents

Reservoir de liquide, dispositif de pompage pour un tel reservoir, et procede de vidange de reservoir de liquide Download PDF

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Publication number
EP1307620B1
EP1307620B1 EP01974973.8A EP01974973A EP1307620B1 EP 1307620 B1 EP1307620 B1 EP 1307620B1 EP 01974973 A EP01974973 A EP 01974973A EP 1307620 B1 EP1307620 B1 EP 1307620B1
Authority
EP
European Patent Office
Prior art keywords
housing
pump
liquid reservoir
cistern
liquid
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
EP01974973.8A
Other languages
German (de)
English (en)
Other versions
EP1307620A1 (fr
Inventor
Jacobus Eldert Maria Van Baar
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.)
Intelligent Environmental Systems BV
Original Assignee
Intelligent Environmental Systems BV
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 Intelligent Environmental Systems BV filed Critical Intelligent Environmental Systems BV
Publication of EP1307620A1 publication Critical patent/EP1307620A1/fr
Application granted granted Critical
Publication of EP1307620B1 publication Critical patent/EP1307620B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/22—Adaptations of pumping plants for lifting sewage

Definitions

  • the present invention relates to a liquid reservoir according to the preamble of claim 1.
  • Such liquid reservoir is known from DE-A-35 42 529 .
  • the reservoir contains as a cistern a first container collecting liquid supplied through a supply pipe and being connected to the pump housing through a pipe having a return valve.
  • the object of the invention is to further improve such a liquid reservoir.
  • liquid reservoir according to the invention has the features according to the characterizing portion of claim 1.
  • the liquid reservoir according to the invention has the advantage that the housing can form an independent unit within the cistern.
  • the housing in addition to being used in new catch pits, can also function as a unit which is subsequently built into an existing cistern of the catch pit.
  • an existing catch pit fitted with an electromechanical submersible pump can for example be converted into a catch pit according to the invention, wherein the water is pumped by means of gas pressure.
  • a further advantage is that the pump is readily accessible, which makes it possible to carry out maintenance work and repairs on the pump in a simple manner, whereas furthermore the pump is not exposed to the liquid that is present in the cistern of the liquid reservoir and is possibly corrosive.
  • the pump is a vacuum pressure pump having a suction side and a delivery side, which are both connected to the housing, whereas the pump is arranged for alternately drawing gas into the housing and forcing gas out of the housing.
  • Fig. 1 shows a catch pit which is incorporated in a sewer system, in which sewage water from one or more sources can collect.
  • the catch pit includes a cistern 1, which may be made of concrete, for example, and which will usually be disposed underground.
  • Cistern 1 comprises an inlet 2 for letting in sewage water, which flows into the cistern 1 of the catch pit via a natural drop.
  • Cistern 1 furthermore includes an outlet 3, which is located at a low level in the catch pit and which is led to a higher level via an outlet pipe 4 fitted with an outlet valve 5, and which exits the cistern at said higher level.
  • outlet 3 Connected to outlet 3, at the bottom end of outlet pipe which, in addition to pump housing 6, comprises a vacuum pressure pump 7 and one or more connecting hoses 8 between pump 7 and housing 6.
  • said housing includes an outlet 9, which is connected to the coupling of outlet 3.
  • Housing 6 furthermore includes an inlet 10, which is in communication with the cistern 1 of the catch pit and which can be closed by means of an inlet valve 11, in this embodiment in the form of a non-return valve, which is mounted in the interior of housing 6 and which closes inlet 10 when the pressure in housing 6 is larger than the pressure in cistern 1.
  • Valve 11 opens automatically when the pressure in cistern 1 is sufficiently higher than the pressure in housing 6.
  • Present in the upper wall of housing 6 is the pump connection 12 to which the connecting hose 8 of pump 7 is connected.
  • Control box 13 which control box 13 is disposed at a higher level than cistern 1, in particular above ground level, so that the interior of the control box 13 is readily accessible from outside.
  • the control box comprises the control units which are required for the functioning of catch pit 1.
  • a level sensor 15 which is disposed in cistern 1 of the catch pit, is connected to control unit 14, in response to the signals from which sensor the control unit 14 can control pump 7.
  • Vacuum pressure pump 7 is so arranged that it can alternately function as a vacuum pump and as a pressure pump, to which end hose 8 is switched between the suction side and the delivery side of the pump.
  • suction position air is drawn from the interior of housing 6, and consequently a sub-atmospheric pressure will be generated in housing 6, which makes it possible for housing 6 to be completely filled with sewage water.
  • pressure position air is pumped into housing 6 via hose 8 for the forced discharge of sewage water from housing 6.
  • Figs. 2, 3 and 4 illustrate the operation of the pumping device in the catch pit according to Fig. 1 .
  • pump housing 6 is in the inoperative position.
  • Non-return valve 11 will close, as a result of which inlet 10 will be closed, so that the sewage water cannot flow back to cistern 1.
  • outlet valve 5 is opened either automatically or in response to a control signal, the sewage water from housing 6 will be forced upwards through outlet pipe 4 via outlet 3, thus exiting cistern 1, from where the sewage water can be further discharged.
  • Pump 1 will continue to operate until housing 6 has been emptied, after which pump housing 6 is ready for a new cycle.
  • the invention provides a liquid reservoir and a pump therefor which are remarkable for their universal applicability, as well as for the simplicity of construction and reliable operation, because the pump is disposed outside cistern 1, so as to enable easy access thereto, in a protected environment, with only the housing being accommodated in the cistern of the pit.
  • the pumping device is very suitable for use in existing catch pits, where it can replace the electromechanical submersible pumps that are used therein.
  • the connections of the housing can be configured such that the existing pump can simply be disconnected and the housing can be fitted instead.
  • the invention can also be used in all kinds of other liquid reservoirs for collecting in particular corrosive liquids, such as liquids in the refinery industry, developers and waste water from various production processes.
  • the pump may be configured as a gas pressure pump only, in which case the housing will be filled as a result of the pressure from the water in cistern 1.
  • the pump may also be mounted on the housing while being disposed outside the cistern. Also further variations are conceivable, of course.

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)
  • Sewage (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Claims (6)

  1. Réservoir de liquide comprenant une citerne (1) incluant une entrée (2), qui est reliée à la citerne (1) pour un afflux libre de liquide dans la citerne, un carter de pompe (6), et ayant une entrée de carter (10) avec une soupape d'entrée (11) pour permettre que le liquide s'écoule de la citerne (1) dans le carter lorsque la soupape d'entrée (11) est ouverte, et une pompe (7) agencée en dehors de la citerne (1) et fonctionnant par la pression de gaz, en particulier la pression d'air, le côté refoulement de la pompe (7) étant relié au carter (6) via au moins un conduit tel qu'un tuyau (8), une sortie (3) reliée au carter de pompe (6) et dotée d'une soupape (5) pour l'évacuation forcée de liquide du carter à l'aide de la pression de gaz provenant de la pompe, caractérisé en ce que le carter de pompe (6) est logé dans la citerne (1).
  2. Réservoir de liquide selon la revendication 1, dans lequel la pompe (7) est une pompe de pression à vide avec un côté aspiration et un côté refoulement, les deux reliés au carter (6), alors que la pompe est agencée pour aspirer en alternance du gaz dans le carter et forcer le gaz à sortir du carter.
  3. Réservoir de liquide selon la revendication 1 ou 2, dans lequel le carter (6) est une unité qui est adaptée pour être construite dans une citerne existante (1) du réservoir de liquide.
  4. Réservoir de liquide selon l'une quelconque des revendications précédentes, dans lequel le réservoir de liquide inclut une boîte de commande séparée (13) qui est positionnée sur un niveau plus élevé que la citerne (1) et dans laquelle la pompe (7) est logée.
  5. Réservoir de liquide selon l'une quelconque des revendications précédentes, dans lequel la soupape d'entrée (11) du carter (6) est un clapet de non-retour.
  6. Réservoir de liquide selon l'une quelconque des revendications précédentes, dans lequel le réservoir de liquide se présente sous la forme d'une fosse de décantation pour la collecte et l'évacuation des eaux d'égout.
EP01974973.8A 2000-08-07 2001-08-06 Reservoir de liquide, dispositif de pompage pour un tel reservoir, et procede de vidange de reservoir de liquide Expired - Lifetime EP1307620B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1015884A NL1015884C2 (nl) 2000-08-07 2000-08-07 Vloeistofreservoir, pompinrichting daarvoor, alsmede werkwijze voor het legen van het vloeistofreservoir.
NL1015884 2000-08-07
PCT/NL2001/000591 WO2002020909A1 (fr) 2000-08-07 2001-08-06 Reservoir de liquide, dispositif de pompage pour un tel reservoir, et procede de vidange de reservoir de liquide

Publications (2)

Publication Number Publication Date
EP1307620A1 EP1307620A1 (fr) 2003-05-07
EP1307620B1 true EP1307620B1 (fr) 2015-10-14

Family

ID=19771853

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01974973.8A Expired - Lifetime EP1307620B1 (fr) 2000-08-07 2001-08-06 Reservoir de liquide, dispositif de pompage pour un tel reservoir, et procede de vidange de reservoir de liquide

Country Status (5)

Country Link
EP (1) EP1307620B1 (fr)
AU (1) AU2001294344A1 (fr)
DK (1) DK1307620T3 (fr)
NL (1) NL1015884C2 (fr)
WO (1) WO2002020909A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2498560B (en) * 2012-01-19 2016-09-21 Abu Al-Rubb Khalil Waste pump

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7014007A (fr) * 1970-09-22 1972-03-24
SE348783B (fr) 1970-12-15 1972-09-11 Waeertsilae Ab Oy
FR2300181A1 (fr) * 1975-02-07 1976-09-03 Soterkenos Ets Appareil aero-ejecteur de relevage d'eaux usees
FR2517719A1 (fr) * 1981-12-04 1983-06-10 Soterkenos Sarl Dispositif de transport pneumatique d'eaux usees
DE3542529C2 (de) * 1985-12-02 1994-06-30 Willi Cordes Pneumatische Abwasser-Hebeanlage

Also Published As

Publication number Publication date
WO2002020909A1 (fr) 2002-03-14
EP1307620A1 (fr) 2003-05-07
NL1015884C2 (nl) 2002-02-08
AU2001294344A1 (en) 2002-03-22
DK1307620T3 (en) 2015-12-14

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