EP3228869B1 - Tauchpumpe und betätigungsverfahren einer solchen pumpe - Google Patents

Tauchpumpe und betätigungsverfahren einer solchen pumpe Download PDF

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Publication number
EP3228869B1
EP3228869B1 EP17164631.8A EP17164631A EP3228869B1 EP 3228869 B1 EP3228869 B1 EP 3228869B1 EP 17164631 A EP17164631 A EP 17164631A EP 3228869 B1 EP3228869 B1 EP 3228869B1
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EP
European Patent Office
Prior art keywords
suction
pump
liquid
configuration
base
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.)
Active
Application number
EP17164631.8A
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English (en)
French (fr)
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EP3228869A1 (de
Inventor
Sébastien BARON
Maxime SPICA
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.)
Exel Industries SA
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Exel Industries SA
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Publication date
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Publication of EP3228869A1 publication Critical patent/EP3228869A1/de
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Publication of EP3228869B1 publication Critical patent/EP3228869B1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/086—Sealings especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F04D13/086—Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/007—Preventing loss of prime, siphon breakers
    • F04D9/008—Preventing loss of prime, siphon breakers by means in the suction mouth, e.g. foot valves

Definitions

  • the present invention relates to a submersible pump for discharging liquids, as well as to a method of operating such a pump.
  • a submersible pump allowing either the evacuation of a liquid laden with solid particles, or the almost complete evacuation of a clear liquid, is known, in particular from FR-B-2 922 609 .
  • These pumps generally use configurable bases allowing the size of the liquid suction channels to be increased.
  • suction systems in particular the turbine, to allow these configuration changes, cannot be as low as possible in the enclosure, which means that a significant height of water, for example 10 cm, must be present for the pump to prime. In the event that a small amount of clear water has to be drawn in, the pump does not start.
  • the invention intends to remedy by proposing a new submersible pump which can be primed in low heights of clear liquids, while also allowing the suction of liquids loaded with particles, and the pump body of which remains waterproof after switching off the suction system.
  • the invention relates to a submersible pump as defined in claim 1.
  • the pump can be filled with a liquid until the suction system is immersed, which allows priming of the pump regardless of the height of liquid in which the pump is placed.
  • the closure member prevents the liquid from spilling when the pump is stopped.
  • the invention also relates to a method of operating a pump as defined in claim 13.
  • the figure 1 illustrates a submersible pump P comprising an enclosure 21 intended to contain the liquid to be evacuated.
  • the enclosure 21 can be partially or totally immersed in a liquid.
  • the terms up, down, upper and lower refer to the operating position of the pump P, that is to say vertical with respect to the surface of the ground, assumed to be horizontal in this example, as illustrated by the figure 1 .
  • the enclosure 21 defines a main volume 20, in which is housed an electric actuator formed by a motor 22 in this example.
  • the motor 22 comprises a rotary output shaft 225 and extending along an axis Z22.
  • the Z22 axis is vertical on the figure 1 and when the pump P rests on horizontal ground.
  • An impeller 5 is secured to the output shaft 225 by means of a nut (not shown). The impeller 5 rotates around the axis Z22 when the output shaft 225 is rotated by the motor 22.
  • the pump P includes a base 3 at which the liquid to be evacuated is sucked.
  • the pump P is equipped with an outlet nozzle 13 through which the liquid L. can be discharged. Whatever the nature of the liquid L, charged or clear, its flow takes place from the bottom of the pump P, where it is sucked at the level of the base 3, up to the top of the pump P, where it is discharged through the end piece 13.
  • the end piece 13 therefore places the enclosure 21 in communication with the outside of the enclosure 21.
  • the base 3 is adapted to be reversibly positioned in a first and a second position corresponding respectively to two distinct configurations of the pump P, a first configuration shown in the figure 1 being intended for the suction of a clear liquid, the other configuration, shown in Figures 5 and 6 , being intended for the suction of a liquid charged with solid particles.
  • charged water is understood a liquid which can include particles such as leaves, gravel which can go up to 30 mm, muddy water, etc.
  • reversible is meant that the base 3 can be removed to easily move from its first position to its second position, and vice versa.
  • the main difference between the configurations of pump P for discharging a charged liquid or a clear liquid lies in the dimensions of the respective flow sections delimited by the geometry of the base 3.
  • the base 3 is adapted to be mounted inversely between the suction configuration of clear liquids and its suction configuration of liquids loaded with solid particles. This operation is described in the patent FR-B-2 922 609 and will not be repeated in detail in this
  • the enclosure 21 comprises a bottom provided with an opening 24.
  • the opening 24 is surrounded by a gasket 26.
  • the base 3 comprises an orifice 30 for the suction of liquid, forming with the opening 24 a liquid flow path between the interior volume 20 and the exterior of the enclosure 21 on the side of the base 3.
  • the base 3 comprises a conduit 31 coaxial with the orifice 30 and which bears on the seal 26 so that a liquid flowing from the volume 20 must pass through the orifice 30. The seal between the base 3 and the enclosure 21 is therefore ensured.
  • the duct 31 is no longer in abutment against the seal 26.
  • the seal between the base 3 and the enclosure 21 is eliminated, and the liquids therefore pass into spaces 36 of the base 3 located away from the duct 31.
  • the base 3 comprises a member for closing the orifice 30.
  • This shutter member is adapted to allow the tight retention of a quantity of liquid in the enclosure 21 in the absence of activation of the electric actuator 22.
  • the shutter member is a valve 32 adapted to come into contact with a seat 34 formed by the base 3 around the orifice 30.
  • the valve 32 comprises a flat upper part 320 adapted to come into contact edges of the orifice 30 forming the seat 34, and a seal 322 provided on the periphery of the planar upper part 320 and adapted to be pressed between the base 3 and the planar upper part 320.
  • the valve 32 can advantageously consist at least in part of a polymer loaded with fibers, capable of withstanding abrasion and impact by particles, such as stones, transported by the liquid to be discharged.
  • the valve 32 is adapted to be kept in the closed position, when the enclosure 21 is empty and the pump P is in the operating position, that is to say placed on a surface. substantially flat in vertical position shown at figure 1 , and ready to go. This holding in the closed position of the valve 32 allows the filling and therefore the priming of the pump P.
  • valve 32 is held in the closed position by gravity.
  • An approximate force of 0.5 N is necessary to ensure the correct closing of the valve 32.
  • the internal volume 20 can be filled with liquid without this liquid flowing through the orifice 30. This makes it possible in particular to avoid the flow of liquid when the pump P is stopped.
  • the pump P When a small height of liquid must be aspirated, for example 5 mm, the pump P is started up by successive steps consisting in positioning the base 3 in its first position, corresponding to the configuration of suction of clear liquids, then to fill the enclosure 21 with liquid so that the impeller 5 is submerged. This filling can advantageously be done by the nozzle 13. Finally, the electric actuator 22 is started. With the impeller 5 immersed, the pump P is correctly primed.
  • the valve 32 comprises a lower part 324 forming a stop which limits the vertical stroke of the valve 32 by coming into contact with the periphery of the orifice 30.
  • the upper part 320 and the lower part 324 are connected by spaced branches 326, or at least one branch, to allow the flow of liquid.
  • the operation of the valve 32 can be deactivated, advantageously in the suction configuration of charged liquids.
  • deactivable it is meant that the valve 32 can be locked in the open or closed position according to the choice of the user of the pump P.
  • the operation of the valve 32 can be deactivated by positioning the base 3 in its second position, corresponding to the suction configuration of liquids loaded with solid particles.
  • the pump P may comprise means for holding the valve 32 in the open position, such as for example, a pin, adapted to deactivate its operation.
  • the base 3 defines liquid suction paths, represented by the arrows F2 at the figure 5 , located away from the valve 32, which prevents its deterioration by particles contained in the sucked liquid.
  • the seat 34 is provided on a removable part such as a ring 35, which can be secured to the base 3 by clipping or screwing, so as to allow access to the valve 32, or more generally to the shutter member, in particular for cleaning it.
  • a second embodiment of the invention is shown in the figure 7 .
  • the elements common to the first embodiment bear the same reference and operate in the same way. Only the differences compared to the first embodiment are detailed below.
  • the valve 32 or more generally the shutter member, has an external shape defining a substantially spherical surface 328, so as to automatically seal when gravity keeps the valve 32 in its closed position.
  • the valve 32 can in particular present the shaped like a ball.
  • the seat 34 is shaped to receive the valve 32 so that the seal is optimal.
  • the seat 34 can be shaped according to a spherical geometry complementary to that of the valve 32.
  • valve 32 can have a substantially conical or frustoconical external shape widening in the direction of the opening 24.
  • the valve 32 can be held in the closed position by a spring 38 acting in place of gravity or else in conjunction.
  • the spring 38 can be placed between the valve 32 and elements 40 projecting from the conduit 31. In the suction suction configuration, the valve 32 is held in the closed position by the spring 38, this which limits the clogging of the valve 32 and the orifice 30.
  • the pump P can comprise more than one orifice 30 for sucking liquids. At least one of these orifices is equipped with a closure member, and it can be envisaged that several of these orifices, or even all of them, are equipped with them.
  • the seat 34 and / or the valve 32, or more generally the shutter member may comprise a flexible element adapted to perfect the seal between the seat and the shutter member .
  • flexible element is meant an element at least partially soft or deformable, for example a rubber rubber.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (13)

  1. Eintauchbare Pumpe (P) zum Evakuieren von Flüssigkeiten, umfassend ein Gehäuse (21), eine Basis (3) des Gehäuses (21), umfassend wenigstens einen Flüssigkeitsansaugeinlass (30), ausgelegt zum umkehrbaren Positionieren gemäß zwei verschiedenen Konfigurationen der Pumpe (P), wobei eine erste Konfiguration zum Ansaugen einer mit Feststoffpartikeln beladenen Flüssigkeit bestimmt ist, wobei die andere Konfiguration zum Ansaugen einer klaren Flüssigkeit bestimmt ist, dadurch gekennzeichnet, dass die Basis (3) eine Leitung (31) umfasst, die in der Konfiguration zum Ansaugen von klaren Flüssigkeiten an einer Dichtung (26) zur Anlage kommen kann, die eine Öffnung (24) des Gehäuses (21) umgibt, um die Leitung (31) auf dichte Weise mit dem Gehäuse (21) zu verbinden und damit eine aus dem Gehäuse (21) über die Öffnung (24) fließende Flüssigkeit unbedingt durch den wenigstens einen Flüssigkeitsansaugeinlass (30) passieren muss, und dadurch, dass die Basis (3) wenigstens eine Verschlussvorrichtung (32) für den wenigstens einen Flüssigkeitsansaugeinlass (30) umfasst, so ausgelegt, dass sie ein dichtes Halten einer Flüssigkeitsmenge im Gehäuse (21) in der Konfiguration zum Ansaugen von klaren Flüssigkeiten bei nicht aktivierter Pumpe (P) zulässt.
  2. Pumpe nach Anspruch 1, dadurch gekennzeichnet, dass in der Konfiguration zum Ansaugen von klaren Flüssigkeiten die Verschlussvorrichtung (32) so ausgelegt ist, dass sie in der geschlossenen Position gehalten wird.
  3. Pumpe nach Anspruch 1, dadurch gekennzeichnet, dass die Verschlussvorrichtung (32) durch Schwerkraft und/oder durch eine Feder (38) in der geschlossenen Position gehalten wird.
  4. Pumpe nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Betrieb der Verschlussvorrichtung (32) deaktiviert werden kann.
  5. Pumpe nach Anspruch 4, dadurch gekennzeichnet, dass sie Mittel zum Halten der Verschlussvorrichtung (32) in der offenen Position umfasst, die zum Deaktivieren des Betriebs der Verschlussvorrichtung (32) ausgelegt sind.
  6. Pumpe nach Anspruch 4, dadurch gekennzeichnet, dass der Betrieb der Verschlussvorrichtung (32) durch Positionieren der Basis (3) in ihrer Position entsprechend der Konfiguration des Ansaugens von mit Feststoffpartikeln beladenen Flüssigkeiten deaktiviert werden kann.
  7. Pumpe nach Anspruch 6, dadurch gekennzeichnet, dass die Basis (3) zum umgekehrten Montieren zwischen der Konfiguration zum Ansaugen von klaren Flüssigkeiten und der Konfiguration zum Ansaugen von mit Feststoffpartikeln beladenen Flüssigkeiten ausgelegt ist, und dadurch, dass in der Konfiguration zum Ansaugen von mit Feststoffpartikeln beladenen Flüssigkeiten die Basis (3) Ansaugkanäle (F2) für Flüssigkeit definiert, die sich in einem Abstand von der Verschlussvorrichtung (32) befinden.
  8. Pumpe nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Verschlussvorrichtung ein Ventil (32) ist, das so ausgelegt ist, dass es mit einem durch die Basis (3) um den wenigstens einen Flüssigkeitsansaugeinlass (30) herum gebildeten Sitz (34) in Kontakt kommt.
  9. Pumpe nach Anspruch 8, dadurch gekennzeichnet, dass das Ventil (32) einen ebenen oberen Teil (320), so ausgelegt, dass er mit Rändern des wenigstens einen Flüssigkeitsansaugeinlasses (30) in Kontakt kommt, und eine Dichtung (322) umfasst, die um den Umfang des ebenen oberen Teils (320) vorgesehen und so ausgelegt ist, dass sie zwischen die Basis (2) und den ebenen oberen Teil (320) gepresst wird.
  10. Pumpe nach einem der Ansprüche 8 und 9, dadurch gekennzeichnet, dass der Sitz (34) und/oder die Verschlussvorrichtung (32) ein elastisches Element umfasst/-en, ausgelegt zum Vervollkommnen der Dichtigkeit zwischen dem Sitz (34) und der Verschlussvorrichtung (32).
  11. Pumpe nach einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, dass der Sitz (34) auf einem Ring (35) vorgesehen ist, der von der Basis (3) demontiert werden kann und Zugang zur Verschlussvorrichtung (32) bietet.
  12. Pumpe nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Verschlussvorrichtung (32) in einer im Wesentlichen sphärischen oder konischen Form vorliegt.
  13. Verfahren zum Betreiben einer Pumpe (P), umfassend ein Gehäuse (21), eine Basis (3) des Gehäuses (21), umfassend wenigstens einen Flüssigkeitsansaugeinlass (30), der zum umkehrbaren Positionieren gemäß zwei verschiedenen Konfigurationen der Pumpe (P) ausgelegt ist, wobei eine erste Konfiguration zum Ansaugen einer mit Feststoffpartikeln beladenen Flüssigkeit bestimmt ist, wobei die andere Konfiguration zum Ansaugen einer klaren Flüssigkeit ausgelegt ist, wobei die Basis (3) eine Leitung (31) umfasst, die in der Konfiguration zum Ansaugen von klaren Flüssigkeiten mit einer Dichtung (26) in Anlage kommen kann, die eine Öffnung (24) des Gehäuses (21) umgibt, um die Leitung (31) auf dichte Weise mit dem Gehäuse (21) zu verbinden und damit eine aus dem Gehäuse (21) über die Öffnung (24) fließende Flüssigkeit unbedingt durch den wenigstens einen Flüssigkeitsansaugeinlass (30) passiert, wobei die Basis (3) wenigstens eine Verschlussvorrichtung (32) des wenigstens einen Flüssigkeitsansaugeinlasses (30) umfasst, so ausgelegt, dass sie ein dichtes Halten einer Flüssigkeitsmenge in dem Gehäuse (21) in der Konfiguration zum Ansaugen von klaren Flüssigkeiten und ohne Aktivierung der Pumpe (P) zulässt, wobei das Verfahren die folgenden aufeinander folgenden Schritte beinhaltet:
    a) Positionieren der Basis (3) in ihrer Position entsprechend der Konfiguration zum Ansaugen von klaren Flüssigkeiten,
    b) Füllen des Gehäuses (21) mit Flüssigkeit, so dass ein Ansaugsystem (5) der Pumpe (P) eingetaucht ist,
    c) Inbetriebsetzen eines Aktuators (22) der Pumpe (P), um das Ansaugsystem (5) anzutreiben.
EP17164631.8A 2016-04-04 2017-04-03 Tauchpumpe und betätigungsverfahren einer solchen pumpe Active EP3228869B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1652942A FR3049660B1 (fr) 2016-04-04 2016-04-04 Pompe submersible et procede de mise en fonctionnement d'une telle pompe

Publications (2)

Publication Number Publication Date
EP3228869A1 EP3228869A1 (de) 2017-10-11
EP3228869B1 true EP3228869B1 (de) 2020-02-12

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ID=56101669

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17164631.8A Active EP3228869B1 (de) 2016-04-04 2017-04-03 Tauchpumpe und betätigungsverfahren einer solchen pumpe

Country Status (3)

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EP (1) EP3228869B1 (de)
CN (1) CN107269572B (de)
FR (1) FR3049660B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112916476A (zh) * 2019-12-06 2021-06-08 苏州宝时得电动工具有限公司 清洗机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3135220A (en) * 1962-11-20 1964-06-02 Richard H Haynes Portable self-priming floor drainer pump assembly
JPS61234294A (ja) * 1985-04-10 1986-10-18 Tsurumi Seisakusho:Kk 水中ポンプの残水処理装置
JP2551568Y2 (ja) * 1991-03-05 1997-10-22 株式会社鶴見製作所 渦巻ポンプのストレーナー
GB2344635B (en) * 1998-12-09 2003-04-30 Kitz Corp Ball check valve and pumping apparatus using the check valve
DE102005031420B4 (de) * 2005-07-04 2010-07-08 Al-Ko Kober Ag Kombinierte Tauch-/Flachabsaug-Rotationspumpe mit konzentrischer Laufradeintrittsöffnung
FR2922609B1 (fr) * 2007-10-18 2010-02-19 Exel Ind Pompe submersible
WO2015070955A1 (de) * 2013-11-16 2015-05-21 Brose Fahrzeugteile Gmbh & Co Kommanditgesellschaft, Würzburg Elektromotorische kühlmittelpumpe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
FR3049660B1 (fr) 2021-10-15
CN107269572B (zh) 2020-12-29
EP3228869A1 (de) 2017-10-11
CN107269572A (zh) 2017-10-20
FR3049660A1 (fr) 2017-10-06

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