EP2444673A2 - Comminutor pump - Google Patents

Comminutor pump Download PDF

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Publication number
EP2444673A2
EP2444673A2 EP11290405A EP11290405A EP2444673A2 EP 2444673 A2 EP2444673 A2 EP 2444673A2 EP 11290405 A EP11290405 A EP 11290405A EP 11290405 A EP11290405 A EP 11290405A EP 2444673 A2 EP2444673 A2 EP 2444673A2
Authority
EP
European Patent Office
Prior art keywords
sectors
fixed
toothed
pump
shaft
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.)
Withdrawn
Application number
EP11290405A
Other languages
German (de)
French (fr)
Other versions
EP2444673A3 (en
Inventor
Martial Smis
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 SAS
Original Assignee
KSB SAS
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 KSB SAS filed Critical KSB SAS
Publication of EP2444673A2 publication Critical patent/EP2444673A2/en
Publication of EP2444673A3 publication Critical patent/EP2444673A3/en
Withdrawn legal-status Critical Current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
    • 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
    • F04D7/045—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 with means for comminuting, mixing stirring or otherwise treating
    • 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2261—Rotors specially for centrifugal pumps with special measures
    • F04D29/2288—Rotors specially for centrifugal pumps with special measures for comminuting, mixing or separating

Definitions

  • the present invention relates to macerator pumps.
  • a dilacerator pump can split fibers contained in suspension in wastewater.
  • a macerator pump which comprises a shaft driven in rotation by a motor, an impeller integral in rotation with the shaft in a pump body and means for macerating materials carried by the fluid sucked by the impeller.
  • the aim of the invention is to perfect a macerator pump of this kind by making it more efficient.
  • the pump according to the invention is defined in claim 1.
  • the angular positions of the moving toothed sectors and the fixed tooth sectors are such that not all the moving sectors overlap at the same time fixed gear sectors. In particular, it can be done so that at any one time only one movable tooth sector of all overlaps a fixed tooth sector.
  • the configuration according to claim 5 allows an adjustment of the axial position of the fixed tooth sector in order to compensate for the increase in the wear clearance of the fixed and moving sectors. This adjustment can be done by removing shims, which are initially mounted between the pump body and the fixed tooth sector.
  • the grinding pump comprises a shaft 1 driven in rotation by a motor 2 and an impeller 3 integral in rotation with the shaft 1 and housed in a pump body 4.
  • the impeller sucks up the impurity-laden liquid through a suction orifice 5 in the space between four movable toothed sectors 6 rotatably connected to the shaft 1 and at 90 ° from each other and three toothed sectors 7 at 120 ° from each other fixed screwed on the pump body 4.
  • the fibers in suspension are lacerated by the teeth in this interval.
  • Sectors 6 and 7 have stepped stair profiles that face each other and are stepped downward from shaft 1 to pump body 4 in the direction to impeller 3.
  • the movable toothed sectors 6 are closer to the impeller 3 that the sectors 7 toothed fixed.
  • Each turn of the shaft 1, a movable toothed sector 6 straddles a sector 7 stationary tooth with a clearance of 0.4 mm.

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

Abstract

The pump has a material comminution unit comprising movable toothed sectors (6) secured in rotation to shaft (1) and fixed toothed sectors (7) fixed on a pump body (4). The sectors are axially placed one above another and have opposite labyrinth profiles inclined from the shaft to the body in a direction from a suction orifice toward an impeller (3), so that the movable toothed sectors overlap the fixed toothed sectors at each turn with comminution clearance. Angular positions of the sectors are such that all the movable toothed sectors do not overlap the fixed toothed sectors simultaneously.

Description

La présente invention se rapporte aux pompes dilacératrices. Une pompe dilacératrice peut fractionner des fibres contenues en suspension dans des eaux usées.The present invention relates to macerator pumps. A dilacerator pump can split fibers contained in suspension in wastewater.

On connaît déjà une pompe dilacératrice, qui comprend un arbre entraîné en rotation par un moteur, un impulseur solidaire en rotation de l'arbre dans un corps de pompe et des moyens de dilacération de matières véhiculées par le fluide aspiré par l'impulseur.Already known is a macerator pump, which comprises a shaft driven in rotation by a motor, an impeller integral in rotation with the shaft in a pump body and means for macerating materials carried by the fluid sucked by the impeller.

L'invention vise à perfectionner une pompe dilacératrice de ce genre en la rendant plus efficace.The aim of the invention is to perfect a macerator pump of this kind by making it more efficient.

La pompe suivant l'invention est définie à la revendication 1.The pump according to the invention is defined in claim 1.

Grâce à ces profilés en labyrinthe en regard, notamment en escalier, la matière véhiculée par le fluide est bien dilacérée sur un parcours plus long que dans les pompes habituelles.Thanks to these labyrinth profiles facing, including staircase, the material carried by the fluid is well dilacerated on a longer course than in the usual pumps.

De préférence, il y a plusieurs secteurs dentés mobiles et plusieurs secteurs dentés fixes. Pour ne pas avoir à utiliser une puissance trop grande du moteur, il vaut mieux que les positions angulaires des secteurs dentés mobiles et des secteurs dentés fixes soient telles que tous les secteurs mobiles ne chevauchent pas en même temps des secteurs dentés fixes. On peut faire, notamment, en sorte qu'à tout instant un seul secteur denté mobile parmi tous chevauche un secteur denté fixe.Preferably, there are several movable toothed sectors and a plurality of fixed tooth sectors. To avoid having to use too much power from the motor, it is better that the angular positions of the moving toothed sectors and the fixed tooth sectors are such that not all the moving sectors overlap at the same time fixed gear sectors. In particular, it can be done so that at any one time only one movable tooth sector of all overlaps a fixed tooth sector.

La configuration suivant la revendication 5 permet un ajustement de la position axiale du secteur denté fixe, afin de compenser l'augmentation du jeu de dilacération due à l'usure des secteurs fixes et mobiles. Cet ajustement peut se faire par suppression de cales, qui sont montées au départ entre le corps de la pompe et le secteur denté fixe.The configuration according to claim 5 allows an adjustment of the axial position of the fixed tooth sector in order to compensate for the increase in the wear clearance of the fixed and moving sectors. This adjustment can be done by removing shims, which are initially mounted between the pump body and the fixed tooth sector.

Aux dessins annexés, donnés uniquement à titre d'exemple :

la Figure 1
est une vue en coupe d'une pompe dilacératrice suivant l'invention ; et
la Figure 2
en est une vue en perspective ;
la Figure 3
en est une vue en perspective alors que le corps est enlevé.
In the accompanying drawings, given solely by way of example:
Figure 1
is a sectional view of a grinding pump according to the invention; and
Figure 2
is a perspective view;
Figure 3
is a perspective view while the body is removed.

La pompe dilacératrice comprend un arbre 1 entraîné en rotation par un moteur 2 et un impulseur 3 solidaire en rotation de l'arbre 1 et logé dans un corps 4 de pompe. L'impulseur aspire le liquide chargé d'impuretés par un orifice 5 .d'aspiration dans l'intervalle compris entre quatre secteurs 6 dentés mobiles solidaires en rotation de l'arbre 1 et à 90° les uns des autres et trois secteurs 7 dentés à 120° les uns des autres fixes vissés sur le corps 4 de pompe. Les fibres en suspension sont lacérées par les dents dans cet intervalle. Les secteurs 6 et 7 ont des profils en escalier qui se font face et qui sont inclinés en escalier de l'arbre 1 vers le corps 4 de pompe dans la direction allant vers l'impulseur 3. Les secteurs 6 dentés mobiles sont plus près de l'impulseur 3 que les secteurs 7 dentés fixes. A chaque tour de l'arbre 1, un secteur 6 denté mobile vient chevaucher un secteur 7 denté fixe avec un jeu de dilacération de 0,4 mm.The grinding pump comprises a shaft 1 driven in rotation by a motor 2 and an impeller 3 integral in rotation with the shaft 1 and housed in a pump body 4. The impeller sucks up the impurity-laden liquid through a suction orifice 5 in the space between four movable toothed sectors 6 rotatably connected to the shaft 1 and at 90 ° from each other and three toothed sectors 7 at 120 ° from each other fixed screwed on the pump body 4. The fibers in suspension are lacerated by the teeth in this interval. Sectors 6 and 7 have stepped stair profiles that face each other and are stepped downward from shaft 1 to pump body 4 in the direction to impeller 3. The movable toothed sectors 6 are closer to the impeller 3 that the sectors 7 toothed fixed. Each turn of the shaft 1, a movable toothed sector 6 straddles a sector 7 stationary tooth with a clearance of 0.4 mm.

Claims (5)

Pompe dilacératrice, qui comprend un arbre (1) entraîné en rotation par un moteur (2), un impulseur (3) solidaire en rotation de l'arbre (1) dans un corps (4) de pompe et des moyens de dilacération des matières véhiculées par le fluide aspiré par l'impulseur (3), les moyens de dilacération comprenant : - un secteur (6) denté mobile solidaire en rotation de l'arbre, - un secteur (7) denté fixe fixé sur le corps de pompe, - les deux secteurs dentés mobile et fixe étant disposés axialement l'un au-dessus de l'autre et ayant des profils en labyrinthe en regard, inclinés de l'arbre (1) vers le corps (4) de pompe dans la direction allant de l'orifice (5) d'aspiration vers l'impulseur (3), de manière à ce que le secteur (6) denté mobile vienne, à chaque tour, chevaucher le secteur (7) denté fixe avec un jeu de dilacération, caractérisée en ce que les positions angulaires des secteurs (6) dentés mobiles et des secteurs (7) dentés fixes sont telles que tous les secteurs (6) dentés mobiles ne chevauchent pas en même temps des secteurs (7) dentés fixes.A grinding pump, which comprises a shaft (1) driven in rotation by a motor (2), an impeller (3) rotatably connected to the shaft (1) in a pump body (4) and means for grinding the materials carried by the fluid sucked by the impeller (3), the dilaceration means comprising: - A sector (6) movable tooth fixed in rotation with the shaft, a fixed toothed sector (7) fixed on the pump body, the two mobile and fixed tooth sectors being arranged axially one above the other and having labyrinth profiles facing each other, inclined from the shaft (1) towards the pump body (4) in the direction going from the suction port (5) to the impeller (3), so that the movable toothed sector (6) comes, at each turn, to overlap the fixed tooth sector (7) with a set of teeth, characterized in that the angular positions of the movable toothed sectors (6) and the stationary toothed sectors (7) are such that not all the toothed moving sectors (6) overlap fixed toothed sectors (7) at the same time. Pompe suivant la revendication 1, caractérisée en ce que le jeu de dilacération est compris entre 0,2 et 0,7 mm.Pump according to Claim 1, characterized in that the clearance is between 0.2 and 0.7 mm. Pompe suivant l'une des revendications précédentes, caractérisée en ce qu'il y a plusieurs secteurs dentés mobiles.Pump according to one of the preceding claims, characterized in that there are several movable toothed sectors. Pompe suivant l'une des revendications précédentes, caractérisée en ce qu'il y a plusieurs secteurs dentés fixes.Pump according to one of the preceding claims, characterized in that there are several fixed toothed sectors. Pompe suivant l'une des revendications précédentes, caractérisée en ce que le secteur denté (6) mobile est disposé plus près de l'impulseur (3) que le secteur (7) denté fixe.Pump according to one of the preceding claims, characterized in that the movable toothed sector (6) is arranged closer to the impeller (3) than the fixed toothed sector (7).
EP11290405.7A 2010-10-20 2011-09-12 Comminutor pump Withdrawn EP2444673A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1004114A FR2966527B1 (en) 2010-10-20 2010-10-20 DILACERATOR PUMP

Publications (2)

Publication Number Publication Date
EP2444673A2 true EP2444673A2 (en) 2012-04-25
EP2444673A3 EP2444673A3 (en) 2017-09-27

Family

ID=44063224

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11290405.7A Withdrawn EP2444673A3 (en) 2010-10-20 2011-09-12 Comminutor pump

Country Status (2)

Country Link
EP (1) EP2444673A3 (en)
FR (1) FR2966527B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5241904A (en) * 1975-09-29 1977-03-31 Fujikawa Kikai Kk Cutting mechanism for dirty water pump
DE4438841C2 (en) * 1994-11-02 1999-05-27 Orpu Gmbh Pump with a cutting device
AUPR564501A0 (en) * 2001-06-13 2001-07-12 Warman International Limited Apparatus for use in pumps
ATE427427T1 (en) * 2004-12-03 2009-04-15 Brinkmann Pumpen K H Brinkmann PUMP WITH CUTTER IMPELLER
DE102008057849A1 (en) * 2008-11-18 2010-05-20 Wilo Se Cutting device for e.g. sewage pump, has cutting body coaxially surrounded by fixed cutting ring, where annular gap between cutting body and ring decreases in its width from inlet aperture to rotor in opening region close to pump inlet

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
EP2444673A3 (en) 2017-09-27
FR2966527B1 (en) 2013-04-19
FR2966527A1 (en) 2012-04-27

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