EP1137885B1 - Abwasserpumpe mit pneumatisch betriebenem quetschventil - Google Patents

Abwasserpumpe mit pneumatisch betriebenem quetschventil Download PDF

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Publication number
EP1137885B1
EP1137885B1 EP99958249A EP99958249A EP1137885B1 EP 1137885 B1 EP1137885 B1 EP 1137885B1 EP 99958249 A EP99958249 A EP 99958249A EP 99958249 A EP99958249 A EP 99958249A EP 1137885 B1 EP1137885 B1 EP 1137885B1
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EP
European Patent Office
Prior art keywords
tubular body
pump
main chamber
liquid
sleeve valve
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
EP99958249A
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English (en)
French (fr)
Other versions
EP1137885A1 (de
Inventor
Philippe Thurot
Jean-François Ranson
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.)
Audit Conseil Efficacite Strategie Environneme
Original Assignee
Audit Conseil Efficacite Strategie Environnement & Developpement
AUDIT CONSEIL EFFICACITE STRAT
Audit Conseil Efficacite Strategie Environnement & Developpement
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Publication date
Application filed by Audit Conseil Efficacite Strategie Environnement & Developpement, AUDIT CONSEIL EFFICACITE STRAT, Audit Conseil Efficacite Strategie Environnement & Developpement filed Critical Audit Conseil Efficacite Strategie Environnement & Developpement
Publication of EP1137885A1 publication Critical patent/EP1137885A1/de
Application granted granted Critical
Publication of EP1137885B1 publication Critical patent/EP1137885B1/de
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Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members

Definitions

  • the present invention relates to a pneumatic device of pumping a liquid.
  • the invention relates more particularly to a pneumatic device pumping operating intermittently and with compressed gas such as air, and which is intended to pump all kinds of liquids and more particularly, but not exclusively, liquids such as leachate discharge, liquids or polluted liquids and possibly loaded.
  • liquids such as leachate discharge, liquids or polluted liquids and possibly loaded.
  • Liquid means indifferently all these liquids.
  • the pneumatic pumping device of the invention is intended for work submerged and pick up leachates and other liquids, which they polluted and / or charged or not, from depths of about 50 at 60 meters.
  • Such liquids may have a high temperature, for example example of the order of 80 ° C.
  • these liquids can be loaded into salt and convey abrasive particles such as sand, fines clay or sandy mud.
  • motor pumps are often not explosion-proof because operating directly by the supply of electricity; and pumps known pneumatic tires, which are certainly explosion-proof because they operate energy produced by compressed air, all include strainers, flaps or floats that get clogged or get stuck regularly due to the presence of mud or silt at the bottom of the pumping wells liquids, and chloride deposits.
  • the presence of a float or valve can limit the possibilities of positioning the pump.
  • a pump using the pressure of a fluid to produce the elevation of a liquid is known from FR-A-716940.
  • This pump consists of an enclosure 12, immersed in the liquid to be raised, communicating with outside by two tubes, one of which stops at the party is used for the introduction of the fluid under pressure, the other penetrating towards the bottom serves for the repression produced by the fluid pressure.
  • the surrounding liquid comes into the enclosure by openings which are closed by the swelling of a flexible material chamber produced by the setting in communication of this room with the fluid under pressure.
  • the object of the invention is to propose a pneumatic device of pumping which is able to overcome the drawbacks stated above and which can be placed easily in a pit or pit at depths variables.
  • the object of the invention is achieved by a pneumatic device of pumping a liquid operating discontinuously and immersed and with a compressed gas and which is intended to pump liquids such as leachate from a landfill.
  • This device comprises a tubular body constituting a pump body and delimiting a main chamber cylindrical in the upstream and downstream ends of which open respectively an inlet port and an outlet port for the liquid to pump.
  • the pneumatic device comprises a sleeve valve arranged in front of the inlet port to control the passage of the liquid to be pumped through this orifice, means making it possible to control the opening and closing of the sleeve valve by a gas compressed, a discharge pipe passing through the outlet and extending inside the tubular body over most of the length of the latter, and means for feeding the chamber main compressed gas.
  • the pneumatic pumping device hereinafter also called “the pump”
  • the pump is designed to operate in a submerged manner.
  • arrangement of the discharge pipe in the upper plate of the body tubular is advantageous because the liquid to be pumped can be evacuated by a straight pipe.
  • any other provision of this example the connection of an angled pipe to the side wall of the body tubular also corresponds to the principle of the present invention.
  • the pump works as follows:
  • the secondary chamber of the pinch valve is placed in position low pressure.
  • the sleeve relaxes, the sleeve valve opens and the liquid to be pumped enters the main chamber of the pump submerged.
  • the levels of the liquid inside the pump and outside, that is to say in the well, are balanced according to the principle of the vases communicating.
  • timer When the master bedroom is full, means of time delay ("timer") operate a control device of the pinch valve and pressurize it. Compressed air is then put into communication with the secondary chamber of the valve at sleeve, so that the pressure of the compressed air repels the sleeve deformable up to a throat to seal the inlet of the master bedroom and thus prevent any entry and exit of liquids and juice in the pump body, which insulates liquids and juice from the middle outside the well, in the pump body.
  • timer time delay
  • compressed air is sent into the main chamber of the body of the pump. This arrival of compressed air causes the expulsion of leachate and liquids contained in the body of the pump, through the hose of discharge to the surface of the well and into a collector, in a tank or in any other appropriate means made available to receive the pumped liquid.
  • the control device of the pinch valve puts the secondary chamber at low pressure, which allows, on the one hand, the sleeve to expand and release the inlet port of the chamber principal and, by that, on the other hand, to the pumping device to find itself at the beginning of the cycle.
  • the pipe is integrated in the body of the pump, according to the second, it is placed along the pump body outside of it, and according to the third variant, a protective chute is fixed against the body of pump and the pipe is placed inside the chute.
  • This chute can also receive wires connected to contacts level servo. These contacts determine a signal that allows shutdown or restart of the pump, depending on the level of the liquid in the well.
  • the presence of a chute also allows the insertio of a pipe a fluidic level detection device of the "bubble bubble” type.
  • the staging of several contacts along the pump body allows to generate stepped signals providing the operator with a water balance well, at the moment considered.
  • the major interest of the pneumatic pumping device according to the invention is due to the fact that it is totally explosion-proof and that, combined with several electrodes correctly implanted at defined distances along the chute or along the pump body, for example to distances of five, ten or twenty centimeters, it also allows to obtain, at any moment, by periodic or continuous reading of these signals, the level and the variation of liquid levels in the pit or pit.
  • FIGS. 1 to 4 represent a pumping device ("the pump") according to a preferred embodiment of the invention, in four successive stages of a pumping cycle.
  • the pump comprises a tubular body 1 constituting a body of pump and delimiting a cylindrical main chamber 2 in the upstream ends 3 and downstream 4 from which open respectively a inlet port 5 and an outlet port 6 for the liquid to be pumped.
  • the pump also comprises a sleeve valve 7 arranged in front of the inlet port 5 to control the passage of the liquid to be pumped through this orifice, means 8 for controlling the opening and the closing of the sleeve valve 7 by a compressed gas, a pipe of discharge 9 passing through the outlet orifice 6 and extending inside the tubular body over most of the length of the latter, and means 10 for supplying the main chamber 2 with gas compressed.
  • the discharge pipe is advantageously, but not necessarily, provided with a non-return valve 18.
  • the tubular body 1 is formed by a cylindrical tube of revolution closed at both ends, the lower and upstream end 3 and the end upper and lower 4, respectively by a lower plate 31 and by a upper plate 41, which delimit inside the tubular body 1 the master bedroom 2.
  • the plates 11 and 31 constitute the upstream and downstream ends of the secondary chamber, each provided with a passage opening.
  • the wall of the pump body extends beyond the lower plate 31 for also constitute the outer wall of the sleeve valve 7.
  • the pinch valve 7 comprises, besides the outer wall, a plate 11 delimiting with the outer wall and with the bottom plate 31 of the main chamber 2, a secondary chamber 12.
  • the plate 11 is provided of a passage opening 13 through which the liquid to be pumped enters the valve 7. The liquid then leaves through the lower hole 5 of the chamber main 2 which has, in the embodiment shown, the dual function opening of passage at the outlet of the sleeve valve 7 and inlet orifice from the master bedroom 2.
  • the sleeve valve can be an individual element having its own tubular body constituting the outer wall of the valve and having a top plate distinct from the plate 31 and provided with a passage opening constituting the outlet of the valve 7.
  • the diameter of the outer wall of the valve may be different from that of the pump body.
  • the sleeve valve 7 comprises, whatever its configuration, a sleeve 14 which is elastically deformable and which connects the openings upstream and downstream of the valve, thus forming a channel through which the liquid to pump must pass to enter the main chamber 2 of the pump.
  • the sleeve 14 also separates the chamber from the chamber hermetically secondary, which surrounds the canal.
  • the pump body is provided, in its upper part, with two orifices 15 and 16 through which two gas supply pipes pass tablet, referenced 8 and 10.
  • the feed pipe 8 is representative of the means for control the opening and closing of the sleeve valve 7 by a gas compressed, for example by compressed air.
  • This pipe 8 is connected by a from its ends to the secondary chamber 12 and the other end to a generally flexible conduit which, in turn, is connected to a gas source compressed. According to the embodiment shown, the pipe 8 passes through the orifice 15 made in the upper plate 41 of the pump body.
  • the supply pipe 10 is representative of the means allowing to supply compressed gas to the main chamber 2.
  • This pipe 10 is connected by one of its ends to the orifice 16 formed in the plate upper 41 of the pump body and the other end to a conduit generally flexible which, in turn, is connected to a gas source compressed.
  • This source of compressed gas for example an air reservoir compressed, can be the same as the one that feeds the secondary chamber. It goes without saying that, in this case, each of the pipes 8 and 10 is connected to the compressed air tank by separate control means.
  • the pump body further comprises two welded 17 eyelets on the upper plate 41 of the pump body, to fix, for example, a chain or cable through which, or which, the pump is handled and kept in the well.
  • the pump can be equipped with a tripod fixed to the pump casing, for example at a height of the plate 31, by means of a base welded to the pump body. Space formed by the feet of the tripod, can be delimited by a mesh grid fixed around the tripod and protecting the pinch valve from the input of plastics or other potential bodies.
  • the protective mesh grid around the tripod can be made a double row of meshes of identical dimensions or different.
  • the diameter of compressed air supply pipes and liquid flow is a function of the desired flow rate, and the length of these Pipes are a function of the lift height of the liquid in the well.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (10)

  1. Pneumatische Flüssigkeitspumpvorrichtung, die diskontinuierlich und eingetaucht und mit einem Druckgas funktioniert und dazu bestimmt ist, Flüssigkeiten, wie beispielsweise die Laugen eines Ablaufs, zu pumpen, umfassend einen röhrenförmigen Körper (1), der einen Pumpkörper darstellt und eine zylindrische Hauptkammer (2) begrenzt, in deren zulaufseitigem und ablaufseitigem Ende eine Eintrittsöffnung (5) bzw. eine Austrittsöffnung (6) für die zu pumpende Flüssigkeit münden, dadurch gekennzeichnet, dass die pneumatische Vorrichtung ein Hülsenventil (7), das vor der Eintrittsöffnung (5) angeordnet ist, um die Durchgangsmenge der zu pumpenden Flüssigkeit durch diese Öffnung zu kontrollieren, Mittel (8), die es ermöglichen, das Öffnen und Schließen des Ventils mit Hülse durch ein Druckgas zu steuern, einen Druckschlauch (9), der durch die Austrittsöffnung hindurchverläuft und sich im Inneren des röhrenförmigen Körpers auf dem größten Teil der Länge desselben erstreckt, und Mittel (10), die es ermöglichen, die Hauptkammer mit Druckgas zu versorgen, aufweist.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der röhrenförmige Körper (1) im wesentlichen aus einem zylindrischen Rohr gebildet ist, das an seinen beiden Enden, dem zulaufseitigen Ende und dem ablaufseitigen Ende, von einer unteren Platte (31) bzw. einer oberen Platte (41) geschlossen ist, dass der Raum zwischen diesen beiden Platten die Hauptkammer (2) der Pumpvorrichtung darstellt und dass, in der Verwendungsposition der erfindungsgemäßen Vorrichtung gesehen, die Eintrittsöffnung der Hauptkammer in dem unteren Teil des röhrenförmigen Körpers und die Austrittsöffnung in dem oberen Teil des röhrenförmigen Körpers angeordnet ist.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Material des röhrenförmigen Körpers (1) der Pumpe derart ausgewählt ist, dass der Körper durch einen Korrosionsschutzüberzug, der Oxidationen und Chloridablagerungen verhindert, schützbar ist.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Eintrittsöffnung (5) der Hauptkammer in der unteren Platte des röhrenförmigen Körpers und die Austrittsöffnung (6) in der oberen Platte angeordnet ist.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Hülsenventil (7) aus einem röhrenförmigen Körper gebildet ist, der eine Nebenkammer bildet, an deren zulaufseitigem und ablaufseitigem Ende jeweils mindestens eine Öffnung (13, 5) für das Durchfließen der zu pumpenden Flüssigkeit hat, wobei diese Durchflussöffnungen miteinander durch eine elastisch verformbare Hülse (14) verbunden sind, die einen Kanal darstellt, durch den die zu pumpende Flüssigkeit durchfließen muss, um in die Hauptkammer der Pumpvorrichtung zu gelangen.
  6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der röhrenförmige Körper (1) der Pumpe, die Platten (31, 41) und das Hülsenventil (7) aus Materialien hergestellt sind, die gegen trübe, verschmutzte, salzhaltige Flüssigkeiten, die Temperaturen von mehr als 80 °C aufweisen können, widerstandfähig sind.
  7. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Eintrittsöffnung (5) der Hauptkammer (2) und die Hülse (14) des Hülsenventils in Bezug auf die Achse des röhrenförmigen Körpers koaxial angeordnet sind.
  8. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Raum (12), der den Durchflusskanal des Hülsenventils umgibt, durch einen fest mit dem röhrenförmigen Körper (8) verbundenen Schlauch mit einer Druckgasversorgungsquelle verbunden ist.
  9. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Druckschlauch (9) mit einem Rückschlagmittel versehen ist.
  10. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass mindestens einer der Schläuche aus der Gruppe Druckschlauch (9), Druckgasversorgungsschlauch (10) der Hauptkammer (2) und Druckgasversorgungsschlauch (15) der Nebenkammer (12) nicht über die Wand des Pumpenkörpers hinausgeht.
EP99958249A 1998-12-07 1999-12-06 Abwasserpumpe mit pneumatisch betriebenem quetschventil Expired - Lifetime EP1137885B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9815389A FR2786822B1 (fr) 1998-12-07 1998-12-07 Dispositif a air comprime, fonctionnant en discontinu, pour pomper les lixiviats de decharge ou les liquides pollues et charges, et d'asservissement de la pompe au niveau de liquides ou jus dans le puits de pompage
FR9815389 1998-12-07
PCT/FR1999/003026 WO2000034657A1 (fr) 1998-12-07 1999-12-06 Pompe a lixiviat et de depollution, pneumatique, a vanne a manchon

Publications (2)

Publication Number Publication Date
EP1137885A1 EP1137885A1 (de) 2001-10-04
EP1137885B1 true EP1137885B1 (de) 2003-02-26

Family

ID=9533639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99958249A Expired - Lifetime EP1137885B1 (de) 1998-12-07 1999-12-06 Abwasserpumpe mit pneumatisch betriebenem quetschventil

Country Status (10)

Country Link
US (1) US6602055B1 (de)
EP (1) EP1137885B1 (de)
AT (1) ATE233371T1 (de)
AU (1) AU763985B2 (de)
CA (1) CA2362710C (de)
DE (1) DE69905607T2 (de)
ES (1) ES2193766T3 (de)
FR (1) FR2786822B1 (de)
WO (1) WO2000034657A1 (de)
ZA (1) ZA200104627B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7316544B2 (en) * 2004-01-23 2008-01-08 Vidrine James D Automatic pneumatic pump
US7438277B2 (en) * 2004-12-02 2008-10-21 Raytheon Sarcos, Llc Flow force compensated sleeve valve
US7590471B2 (en) * 2004-12-02 2009-09-15 Sterling Investments Lc Intelligent sprinkler irrigation system

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR716940A (fr) 1931-05-12 1931-12-30 Dispositif élévateur de liquide actionné par un fluide sous pression
US2486617A (en) * 1946-06-28 1949-11-01 Sochris Dev Company Deep well pump
FR1124528A (fr) 1955-04-05 1956-10-12 Pompe à liquide fonctionnant au gaz comprimé
GB1082014A (en) * 1964-07-14 1967-09-06 Walter Boettner Improvements in or relating to pumps
CH579220A5 (en) 1975-02-07 1976-08-31 Bless Bauunternehmung Ag Motorless pump for reducing ground water level - has housing with valves for water and compressed air pipes
US4021147A (en) * 1976-04-05 1977-05-03 Brekke Carroll Ellerd Gas pressure driven pump
US4701107A (en) * 1986-04-04 1987-10-20 American Sigma, Inc. Two stage pump sampler
US4704071A (en) * 1986-06-17 1987-11-03 Mccullough Ross M Method and apparatus for pumping liquids
US4802829A (en) * 1987-02-17 1989-02-07 Miller Michael A Solar controlled water well
US5006046A (en) * 1989-09-22 1991-04-09 Buckman William G Method and apparatus for pumping liquid from a well using wellbore pressurized gas
US5186611A (en) * 1990-07-20 1993-02-16 Frandsen Aksel S Pump arrangement for pumping liquid by means of compressed air
US5451144A (en) * 1993-08-18 1995-09-19 French; George F. Air-operated pump
US5411381A (en) * 1994-03-08 1995-05-02 Perrodin; Philip E. Reciprocating pump
AUPO188896A0 (en) * 1996-08-26 1996-09-19 Midwest Training Group Incorporated Pump
US6224343B1 (en) * 1998-08-10 2001-05-01 Kevin L. Newcomer Automated, air-operated bellows pumps for groundwater sampling and other applications
US6352109B1 (en) * 1999-03-16 2002-03-05 William G. Buckman, Sr. Method and apparatus for gas lift system for oil and gas wells

Also Published As

Publication number Publication date
FR2786822A1 (fr) 2000-06-09
DE69905607D1 (de) 2003-04-03
AU763985B2 (en) 2003-08-07
ZA200104627B (en) 2002-09-06
FR2786822B1 (fr) 2001-01-19
ES2193766T3 (es) 2003-11-01
WO2000034657A1 (fr) 2000-06-15
DE69905607T2 (de) 2003-12-18
EP1137885A1 (de) 2001-10-04
CA2362710C (fr) 2008-06-10
US6602055B1 (en) 2003-08-05
ATE233371T1 (de) 2003-03-15
CA2362710A1 (fr) 2000-06-15
AU1566100A (en) 2000-06-26

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