EP2433008B1 - Pompe à venturi - Google Patents

Pompe à venturi Download PDF

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Publication number
EP2433008B1
EP2433008B1 EP10714252.3A EP10714252A EP2433008B1 EP 2433008 B1 EP2433008 B1 EP 2433008B1 EP 10714252 A EP10714252 A EP 10714252A EP 2433008 B1 EP2433008 B1 EP 2433008B1
Authority
EP
European Patent Office
Prior art keywords
pitot tube
hydraulic chamber
tube pump
rotor
dynamic seal
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
EP10714252.3A
Other languages
German (de)
English (en)
Other versions
EP2433008A1 (fr
Inventor
Axel Binder
Christoph Emde
Christoph Keller
Christoph Jäger
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.)
KSB SE and Co KGaA
Original Assignee
KSB SE and Co KGaA
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Publication date
Application filed by KSB SE and Co KGaA filed Critical KSB SE and Co KGaA
Publication of EP2433008A1 publication Critical patent/EP2433008A1/fr
Application granted granted Critical
Publication of EP2433008B1 publication Critical patent/EP2433008B1/fr
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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
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/12—Pumps with scoops or like paring members protruding in the fluid circulating in a bowl
    • 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
    • F04D13/0673—Units comprising pumps and their driving means the pump being electrically driven the motor being of the inside-out type

Definitions

  • the present invention relates to a pitot tube with at least one supply line and at least one outgoing line and a hydraulic chamber and a drive.
  • pitot tubes are also known as pitot pumps, jet pumps, turbopumps or pumps with a pitite element.
  • Conventional pumps according to the pitot tube principle are driven by means of a bearing carrier and a motor coupled thereto.
  • On the opposite side of the hydraulic chamber are fluid connections and sealed by a dynamic seal passage of the pitot tube in the hydraulic chamber.
  • the dynamic seal is aligned with the hydraulic chamber via a housing enclosing the hydraulic chamber, which housing is connected to the bearing carrier.
  • a pitot tube pump are arranged in the motor and inlet and outlet from or to the pumping chamber on different sides of the pumping chamber.
  • a pitot tube pump are arranged in the motor and inlet and outlet from or to the pumping chamber on different sides of a pump chamber located within a housing.
  • the US 5,145,314 describes a pitot tube pump, wherein drive and fluid-carrying line are arranged on different sides of the pumping chamber.
  • the DE 11 2006 000 496 T5 describes a pitot tube pump with a pumping chamber in which a wear ring is inserted adjacent to the pitot tube within the pumping chamber in a groove. Drive and fluid-carrying lines are arranged in this pitot tube pump on different sides of the pump.
  • the WO 03/089788 A1 describes a pitot tube pump, are arranged in the pump drive and inlet and outlet from / to the pumping chamber on different sides of a pump chamber located within a housing.
  • the GB 493 333 A shows a further generic pitot tube.
  • the feeding and / or the discharging line may preferably be formed by axial bores along the longitudinal axis of the axis.
  • this axial bore (s) is / are connected to the connection or connections located in the projection, which are preferably designed as radial bores.
  • the rotor may be part of the hydraulic chamber.
  • the electric motor has at least one stator and at least one rotor, wherein the stator is rotatably connected to the axis and / or wherein the rotor is part of the hydraulic chamber and / or the rotor is non-rotatably connected to the hydraulic chamber.
  • the stator can for example also be part of the axis. But it can also be provided that the stator is positively and / or frictionally rotationally connected to the axis, such as by a press fit or by a tongue and groove connection.
  • the rotor may be formed, for example, by a wall or Wandungsausformung the hydraulic chamber. Just as well, however, is also possible that the rotor form fit and / or frictionally rotationally fixed, z. B.
  • connection with the hydraulic chamber is realized indirectly and / or directly. It may be sufficient, for example, if the rotor is attached to a component which is connected to a wall forming a wall of the hydraulic chamber forming element or a wall of the hydraulic chamber forming element.
  • the inventive arrangement has the advantage that the pitot tube pump can be made very compact. For example, a storage on both sides of the hydraulic chamber can be omitted.
  • no separate housing for the hydraulic chamber and the other components of the pitot tube pump is provided.
  • At least one bearing preferably the mounting of the movable components of the pitot tube pump, is arranged on the common side.
  • the standing axis has a projection which projects into the hydraulic chamber, wherein the feeding and discharging line opens into the approach or has a connection.
  • the connections can be realized by radial holes in the neck.
  • At least one pitot tube is provided, which is arranged on the approach. It is preferably provided that the pitot tube is connected to the terminal located at the approach of the laxative line.
  • the drive is an electric motor. This makes it possible to utilize a particularly advantageous type of drive.
  • the control or regulation of the pitot tube pump can thereby be made simple and advantageous.
  • a customary control or a customary control and / or control unit can be used.
  • a dynamic seal which seals a gap between the movable and immovable components of the pitot tube pump.
  • the dynamic seal seals the gap between the axle and a movable rotor carrier.
  • a dynamic seal is to be understood as a broad concept, which may include, for example, one or more radial shaft seals.
  • a component of a dynamic seal may be a sealing labyrinth which is functionally connected to the dynamic seal. In principle, however, it may already be sufficient if the dynamic seal is formed by a radial shaft seal.
  • a rotor carrier may for example be a rotatable about the stationary axis of the pitot tube pump component, preferably with the rotating hydraulic chamber communicates. The rotor carrier may be part of the hydraulic chamber or connected in rotation therewith. According to the invention it is provided in this context that the rotor carrier forms a wall of the hydraulic chamber.
  • a single dynamic seal is provided and / or that the dynamic seal is seated and / or running on the stationary axle or on the attachment of the axle.
  • the pitot tube has only a single gap to be sealed between the stationary axis and the rotor carrier.
  • a dynamic seal is provided.
  • a radial shaft seal is used such that the sealing lip rotatably rotor arm or the rotating about the axis of the component of the pitot tube pump is connected and rotates on the approach.
  • the hydraulic chamber has a removable lid. This results in the advantage that the hydraulic chamber is easily accessible. As a result, for example, a maintenance or inspection can be carried out quickly and easily.
  • the lid substantially surrounds or forms the hydraulic chamber and / or that the lid is fastened to a wall of the movable components of the pitot tube pump, preferably to the rotor carrier.
  • the lid engages over the pitot tube. This results in the advantage that during maintenance or inspection, the condition of the pitot tube can be easily checked. Further, if necessary, the pitot tube can be easily cleaned or replaced, since it is freely accessible due to the pitot tube overlapping lid upon removal of the lid.
  • the cover is arranged on the side opposite the common side of the hydraulic chamber. As a result, a simple removal of the lid is possible.
  • FIG. 1 shows a cross-sectional view through a pitot tube 10 according to the invention in this pitot tube 10 are on the in FIG. 1 Left side of the hydraulic chamber 20, the fluid ports 30 and 32, that is, the supply line 30 and the laxative line 32 is arranged.
  • the dynamic seal 40 and the bearing 50 and the drive 60th are on the in FIG. 1 Left side of the hydraulic chamber 20, the fluid ports 30 and 32, that is, the supply line 30 and the laxative line 32 is arranged.
  • the bearing 50 and the drive 60 are designed as an integrated storage and drive unit 70, d. H.
  • the storage 50 takes on both the task of supporting the rotating hydraulic chamber 20 and the storage of the drive 60. This results in the advantage of a much smaller footprint and significant cost advantages, since a variety of hitherto mandatory components such as clutch and bearing carrier according to the invention no longer necessary is.
  • the standing pitot tube 80 is inserted into the rotating hydraulic chamber 20 and sealed by means of a dynamic seal 40.
  • the pitot tube 80 is placed on the projection 92 of the standing shaft 90 and arranged on a 92 in approach Radial bore 33 connected.
  • This radial bore 33 is connected to the laxative line 32.
  • the supplying line 30 is connected to a radial bore 31 arranged in the shoulder 92, wherein the radial bore 32 allows an inflow of the supplied fluid into the hydraulic chamber 20.
  • the radial bores 31 and 33 are each perpendicular to the associated lines or holes 30 and 32nd
  • the drive 60 is designed as an external rotor motor and is located on the same side as the fluid ports 30 and 32.
  • the rotor 62 of the drive 60 is preferably already part of the hydraulic chamber 20 or as in FIG. 1 illustrated, directly or rotationally coupled to the hydraulic chamber 20, so that an additional coupling can be omitted.
  • the stator 64 of the drive 60 is rotationally fixed to the stationary axis 90 of the pitot tube 10.
  • the rotor 62 is rotatably mounted on a rotor carrier 100.
  • the rotor carrier 100 forms a wall of the hydraulic chamber 20 with a flange-like wall 102.
  • the lid 22 of the hydraulic chamber 20 is fixed to this flange-like wall 102 of the rotor carrier 100.
  • the actual interior of the hydraulic chamber 20 is formed by the recess in the cover 22.
  • the cover 22 engages both the shoulder 92 and the pitot tube 80, so that when removing the cover 22, the components located in the hydraulic chamber 20 are freely accessible.
  • the gap between the neck 92 of the standing axis 90 and the rotor arm 100 is.
  • this gap designed as a pressure-resistant radial shaft seal dynamic seal 40 is used, wherein the sealing lip of the radial shaft seal, for example, can run on the hardened neck 92.
  • the fluid to be pumped is supplied via the arranged in the axis 90 feeding line 30 to the hydraulic chamber 20 and after entering the standing pitot tube 80, which is connected at the end with the discharge line 32, discharged via the likewise arranged in the axis 90 discharging line 32.
  • a supply and discharge line may be provided for a cooling medium, by means of which the drive 60 and / or the hydraulic chamber 20 can be cooled.
  • a complete inspection of the drive 60 and the bearing 50 can be carried out by pulling down the rotor 62 from the stator 64 or from the axis 90.
  • the assembly or assembly of the pitot tube pump 10 is carried out after maintenance or inspection then in the reverse order as in disassembly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Claims (11)

  1. Pompe à Venturi (10) comprenant au moins une conduite d'alimentation (30) et au moins une conduite d'évacuation (32) ainsi qu'une chambre hydraulique (20) et un entraînement (60), l'entraînement (60), la conduite d'alimentation (30) et la conduite d'évacuation (32) étant disposés sur un côté commun de la chambre hydraulique (20), l'entraînement (60) étant un moteur électrique (60), et
    la conduite d'alimentation et la conduite d'évacuation (30, 32) étant disposées dans un axe stationnaire (90) et le moteur électrique présentant au moins un stator (64) et au moins un rotor (62), le stator (64) étant connecté de manière solidaire en rotation à l'axe (90) et le rotor (62) étant connecté de manière solidaire en rotation à la chambre hydraulique (20), caractérisée en ce qu'un support de rotor (100) constitue une paroi de la chambre hydraulique (20) .
  2. Pompe à Venturi (10) selon la revendication 1, caractérisée en ce qu'au moins un palier, de préférence le support sur palier (50) des composants mobiles de la pompe à venturi (10) est disposé sur le côté commun.
  3. Pompe à Venturi (10) selon la revendication 1 ou 2, caractérisée en ce que l'axe stationnaire (90) présente une pièce saillante (92) qui pénètre dans la chambre hydraulique (20), la conduite d'alimentation et/ou la conduite d'évacuation (30, 32) débouchant dans la pièce saillante (92) ou présentant un raccord.
  4. Pompe à Venturi (10) selon la revendication 3, caractérisée en ce qu'au moins un tube à Venturi (80) est prévu, lequel est disposé au niveau de la pièce saillante (92).
  5. Pompe à Venturi (10) selon l'une quelconque des revendications précédentes, caractérisée en ce qu'un joint d'étanchéité dynamique (40) est prévu, lequel étanchéifie une fente entre les composants mobiles et non mobiles de la pompe à Venturi (10), de préférence étanchéifie la fente entre l'axe (90) et un support de rotor mobile (100).
  6. Pompe à Venturi (10) selon la revendication 5, caractérisée en ce qu'un joint d'étanchéité dynamique unique (40) est prévu et/ou en ce que le joint d'étanchéité dynamique (40) repose et/ou s'étend sur l'axe stationnaire (90), de préférence sur la pièce saillante (92) de l'axe (90).
  7. Pompe à Venturi (10) selon l'une quelconque des revendications précédentes, caractérisée en ce que la chambre hydraulique (20) présente un couvercle amovible (22) .
  8. Pompe à Venturi (10) selon la revendication 7, caractérisée en ce que le couvercle (22) vient essentiellement en prise autour de la chambre hydraulique (20) ou constitue essentiellement la chambre hydraulique (20) et/ou en ce que le couvercle (22) est fixé à une paroi des composants mobiles de la pompe à Venturi (10), de préférence au support de rotor (100).
  9. Pompe à Venturi (10) selon la revendication 7 ou 8, caractérisée en ce que le couvercle (22) vient en prise par-dessus le tube à Venturi (80).
  10. Pompe à Venturi (10) selon l'une quelconque des revendications 7 à 9, caractérisée en ce que le couvercle (22) est disposé du côté de la chambre hydraulique (20) opposé au côté commun.
  11. Pompe à Venturi (10) selon l'une quelconque des revendications 7 à 10, caractérisée en ce qu'après le démontage du couvercle (22), la chambre hydraulique (20) et/ou le tube à Venturi (80) sont accessibles et/ou en ce que le support de rotor (100) est accessible de telle sorte qu'il puisse être retiré de l'axe stationnaire (90).
EP10714252.3A 2009-05-19 2010-04-15 Pompe à venturi Active EP2433008B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009021922A DE102009021922B3 (de) 2009-05-19 2009-05-19 Staurohrpumpe
PCT/EP2010/054920 WO2010133405A1 (fr) 2009-05-19 2010-04-15 Pompe à venturi

Publications (2)

Publication Number Publication Date
EP2433008A1 EP2433008A1 (fr) 2012-03-28
EP2433008B1 true EP2433008B1 (fr) 2019-06-12

Family

ID=42538764

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10714252.3A Active EP2433008B1 (fr) 2009-05-19 2010-04-15 Pompe à venturi

Country Status (8)

Country Link
US (1) US8403625B2 (fr)
EP (1) EP2433008B1 (fr)
JP (1) JP2012527562A (fr)
CN (1) CN102428278B (fr)
AU (1) AU2010251423B2 (fr)
DE (1) DE102009021922B3 (fr)
WO (1) WO2010133405A1 (fr)
ZA (1) ZA201108152B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10151314B2 (en) 2013-03-15 2018-12-11 Envirotech Pumpsystems, Inc. Gear-driven flow-through pitot tube pump
CN104389791B (zh) * 2014-11-20 2017-05-31 浙江胜发泵业有限公司 一种改进容积效率的旋喷泵及改进方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48902U (fr) * 1971-05-27 1973-01-08
US4875826A (en) * 1988-07-26 1989-10-24 Sundstrand Corporation Pitot pump assembly for a rotating fluid management device

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE139240C (fr)
US1032892A (en) * 1911-07-17 1912-07-16 Maurice Goudard Centrifugal hydraulic engine.
GB493333A (en) * 1937-06-04 1938-10-06 Eugene Guy Euston Beaumont Improvements relating to centrifugal pumps
BE783139A (fr) * 1971-05-08 1972-09-01 Gokcen Mehmet R Pompe
DE3138315A1 (de) * 1980-10-08 1982-06-16 Siemens AG, 1000 Berlin und 8000 München Staudruckfoerdereinrichtung fuer fluessigkeiten, gase oder deren gemische
US4626176A (en) * 1984-05-03 1986-12-02 Genevac Limited Pump employing the suction effect of a rotating liquid ring
GB8620546D0 (en) * 1986-08-23 1986-10-01 Genevac Ltd Vacuum pump
GB8813745D0 (en) * 1988-06-10 1988-07-13 Genevac Ltd Improved method of pumping & pumping apparatus
US5261784A (en) * 1990-10-30 1993-11-16 Sundstrand Corporation Variable pressure pitot pump
US5145314A (en) * 1991-04-18 1992-09-08 Sundstrand Corporation Low drag pitot pump and method of operating same
JP3284460B2 (ja) * 1997-11-25 2002-05-20 株式会社クボタ ゲートポンプ
US6817845B2 (en) 2002-04-19 2004-11-16 Envirotech Pumpsystems, Inc. Centrifugal pump with switched reluctance motor drive
JP2004137935A (ja) * 2002-10-16 2004-05-13 Keihin Corp 電動ポンプ装置
JP2004346774A (ja) * 2003-05-20 2004-12-09 Aisan Ind Co Ltd 磁気結合ポンプ
JP2005320918A (ja) * 2004-05-10 2005-11-17 Asmo Co Ltd 流体ポンプ装置
GB2438344B (en) 2005-03-03 2010-10-27 Envirotech Pumpsystems Inc Wear ring for a centrifugal pitot tube pump
DE102006028597A1 (de) * 2006-06-22 2007-12-27 Hagge, Stefan, Dipl.-Ing. Turbopumpe in kompakter Bauweise mit verbessertem Wirkungsgrad
DE102007033644A1 (de) * 2007-07-19 2009-01-22 Katharina Diener Staurohr-Zentrifugalpumpe vom Pitot-Tube Type

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48902U (fr) * 1971-05-27 1973-01-08
US4875826A (en) * 1988-07-26 1989-10-24 Sundstrand Corporation Pitot pump assembly for a rotating fluid management device

Also Published As

Publication number Publication date
CN102428278B (zh) 2014-08-27
EP2433008A1 (fr) 2012-03-28
US20120107093A1 (en) 2012-05-03
US8403625B2 (en) 2013-03-26
JP2012527562A (ja) 2012-11-08
AU2010251423B2 (en) 2012-12-20
DE102009021922B3 (de) 2010-09-09
CN102428278A (zh) 2012-04-25
WO2010133405A1 (fr) 2010-11-25
AU2010251423A1 (en) 2011-11-17
ZA201108152B (en) 2012-07-25

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