EP1961962B1 - Dispositif de couplage pour pompe immergée - Google Patents

Dispositif de couplage pour pompe immergée Download PDF

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Publication number
EP1961962B1
EP1961962B1 EP07023015.6A EP07023015A EP1961962B1 EP 1961962 B1 EP1961962 B1 EP 1961962B1 EP 07023015 A EP07023015 A EP 07023015A EP 1961962 B1 EP1961962 B1 EP 1961962B1
Authority
EP
European Patent Office
Prior art keywords
ball
sphere
coupling
cage
vertical
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
EP07023015.6A
Other languages
German (de)
English (en)
Other versions
EP1961962A2 (fr
EP1961962A3 (fr
Inventor
Dirk Loske
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.)
Gruening & Loske GmbH
Original Assignee
Gruening & Loske 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
Priority claimed from DE200710011214 external-priority patent/DE102007011214B4/de
Application filed by Gruening & Loske GmbH filed Critical Gruening & Loske GmbH
Publication of EP1961962A2 publication Critical patent/EP1961962A2/fr
Publication of EP1961962A3 publication Critical patent/EP1961962A3/fr
Application granted granted Critical
Publication of EP1961962B1 publication Critical patent/EP1961962B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
    • F04D29/606—Mounting in cavities
    • F04D29/607—Mounting in cavities means for positioning from outside
    • 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 invention relates to a coupling foot for a arranged in a sewer manhole submersible pump, comprising a housing on the outside of a coupling part for the engine, an outlet pipe connection and a closable cleaning nozzle are formed, and in the inside of a backflow preventer in the form of a ball and a sealing seat are arranged for the ball.
  • Such an embodiment of a coupling foot is known ( DE 39 08 092 C2 ).
  • the non-return valve of the known coupling foot has a sealing seat which is aligned in a vertical plane.
  • the associated ball is pushed out of its sealing seat by the wastewater pumped by the pump first laterally and then upwards and releases the opening to the outlet pipe connection.
  • the ball performs a mixed movement with a lateral and an upward or downward component.
  • the lateral dimensions of the coupling foot are relatively large.
  • the ball does not necessarily remain in this sealing position, especially if - as usual - the wastewater collection of several adjacent plots act on a common line, which can cause pressure surges or shocks cause one or the other ball leaves its sealing layer and the one or the other pump starts unnecessarily to pump wastewater.
  • the present invention addresses this problem. On the one hand, it wants to improve the design of the non-return valve and, on the other hand, better take into account the cramped spatial conditions in sewage collection shafts.
  • a coupling foot of the type mentioned which is characterized in that the ball is guided in a cage for vertical movements and the sealing seat is formed horizontally at the lower end of the vertical movement of the ball.
  • the ball can only perform vertically or vertically directed movements. In the upper part of its path, the flow passage is opened, while at the bottom of the ball rests on the horizontally aligned sealing seat. In this position, the required sealing force is ensured regardless of the upcoming water pressure solely by the weight of the ball.
  • the ball can be chosen in terms of size and also in terms of the material so that a sufficient sealing effect is achieved, even if no water pressure is present.
  • a spring tongue projects into the path of movement of the ball and is sized to impart torque to the ball and rotate about its center, although the center is still on a vertical line from top to bottom emotional. In this way it can be ensured that the ball performs a certain rotation after each pumping operation and the previously active surface of the ball no longer acts on the sealing seat, but another surface or line does this.
  • the cage is formed of tortuous rods so that the ball makes rotational movements about its midpoint as it moves up or down.
  • two coupling feet are connected at their output sides via a tee with a single stopcock or ball valve, so that in this way in a single sewer manhole two pumps can work.
  • This is possible with the coupling foot according to the invention, because this is constructed much smaller in its lateral dimensions than is the case with bekanten coupling feet. In essence, this is due to the fact that the ball executes only vertical movements.
  • the coupling foot is formed on the right side with a coupling part 2, as is known.
  • a submersible pump is used, wherein for purposes of clarity of illustration, the submersible pump is not self-drawn.
  • a flow is generated, which reproduces the arrow 1.
  • a ball 4 is brought into its upper position, so that the sucked and pumped wastewater can be spent via an open ball valve 6 in a supply line.
  • a closable cleaning nozzle 5 is provided above the ball . About him detergent can be introduced and also the ball 4 can be used.
  • a resilient member which protrudes from the housing inwardly in the path of movement of the ball and this, if it falls there from top to bottom over, imparting a twist, so that the ball performs not only a vertical movement, but also makes a rotation about its center. In this way it can be achieved that more and more new surfaces of the ball are used as a sealing surface to prevent premature lateral wear.
  • the cage is formed of tortuous rods so that the ball makes rotational movements about its center as it moves up or down.

Landscapes

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

Claims (3)

  1. Pied de couplage pour une motopompe submersible disposée dans un puits collecteur d'eaux usées, comprenant un carter,
    au niveau duquel, à l'extérieur, une partie de couplage (2) pour la motopompe submersible, un raccord à tube de sortie et un manchon de nettoyage (5), qui peut être fermé, sont disposés, et
    dans lequel, à l'intérieur, un dispositif anti-retour sous la forme d'une bille (4) et d'un siège d'étanchéité (8) pour la bille, est disposé,
    caractérisé en ce que
    la bille (4) est guidée dans une cage (3) pour des mouvements verticaux et le siège d'étanchéité (8) est réalisé horizontalement au niveau de l'extrémité inférieure du mouvement vertical de la bille.
  2. Pied de couplage selon la revendication 1,
    caractérisé en ce que
    la cage est constituée de trois tiges (3) orientées verticalement et une languette élastique (9) dépasse latéralement dans le trajet de mouvement vertical de la bille (4) et exerce une pression sur la bille.
  3. Pied de couplage selon la revendication 2, caractérisé en ce que la cage est constituée de tiges (3) enroulées.
EP07023015.6A 2007-02-23 2007-11-28 Dispositif de couplage pour pompe immergée Active EP1961962B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007009064 2007-02-23
DE200710011214 DE102007011214B4 (de) 2007-03-08 2007-03-08 Kupplungsfuß für eine Tauchmotorpumpe

Publications (3)

Publication Number Publication Date
EP1961962A2 EP1961962A2 (fr) 2008-08-27
EP1961962A3 EP1961962A3 (fr) 2014-06-04
EP1961962B1 true EP1961962B1 (fr) 2016-06-01

Family

ID=38920504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07023015.6A Active EP1961962B1 (fr) 2007-02-23 2007-11-28 Dispositif de couplage pour pompe immergée

Country Status (1)

Country Link
EP (1) EP1961962B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009002780U1 (de) 2009-02-27 2009-06-04 Ksb Aktiengesellschaft Strömungsführende Tragvorrichtung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422472A (en) * 1981-10-29 1983-12-27 Harvey Hubbell Incorporated Pump basin valve and slip joint
DE3908092A1 (de) * 1989-03-13 1990-09-20 Jung Pumpen Gmbh Abwassersammelschacht mit tauchmotorpumpe
HU2598U (en) * 2003-01-31 2003-09-29 Intermediker Kft Quick-joint

Also Published As

Publication number Publication date
EP1961962A2 (fr) 2008-08-27
EP1961962A3 (fr) 2014-06-04

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