EP2226506B1 - Assembly of a filter and a ring - Google Patents

Assembly of a filter and a ring Download PDF

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Publication number
EP2226506B1
EP2226506B1 EP09290165.1A EP09290165A EP2226506B1 EP 2226506 B1 EP2226506 B1 EP 2226506B1 EP 09290165 A EP09290165 A EP 09290165A EP 2226506 B1 EP2226506 B1 EP 2226506B1
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EP
European Patent Office
Prior art keywords
filter
ring
rotor
loop
fluid
Prior art date
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Application number
EP09290165.1A
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German (de)
French (fr)
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EP2226506A1 (en
Inventor
Hervé Bouilly
Hugues Lemesle
Xavier Pottier
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Wilo Salmson France SAS
Original Assignee
Pompes Salmson SAS
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Priority to PL09290165T priority Critical patent/PL2226506T3/en
Priority to EP09290165.1A priority patent/EP2226506B1/en
Publication of EP2226506A1 publication Critical patent/EP2226506A1/en
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Publication of EP2226506B1 publication Critical patent/EP2226506B1/en
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    • 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
    • F04D13/0606—Canned motor pumps
    • F04D13/0613—Special connection between the rotor compartments
    • 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
    • F04D29/10—Shaft sealings
    • F04D29/106—Shaft 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
    • 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

Definitions

  • the present invention relates to the assembly of a filter and a ring.
  • Such an assembly is for example used for a circulating pump with a motor with a drowned rotor.
  • a circulation pump can be used in installations where a fluid such as water is circulated by the pump.
  • the pump is driven by a motor.
  • the motor may be of the wet rotor type. In such a flooded motor, a fluid flows in a recess in the rotor. It may be the fluid circulated by the pump.
  • the fluid flowing in the rotor cavity may contain abrasive particles. These particles can damage the engine. These particles may, for example, come from the fluid itself or the wear of the parts. There is then a need to filter the fluid.
  • the use of a filter imposes mechanical and construction constraints.
  • a means of improving the filtering is to use a filter disposed on the rotor, the filter being in frictional contact with the rotor.
  • this means prematurely wears the parts by friction.
  • a second drawback is the accentuation of the wear of the parts.
  • an assembly comprising a filter, and a ring mounted on the filter, the ring being adjustable radially in position relative to the filter.
  • the ring is mounted on the filter with a predetermined radial clearance.
  • the ring is locked in rotation with respect to the filter.
  • the filter comprises notches, and the ring comprises lugs extending radially in the notches.
  • the ring comprises a body and lugs, the filter being between the lugs and the body.
  • the filter is made of stainless steel or bronze.
  • the ring is made of plastic.
  • a motor comprising a stator, a rotor driven in rotation by the stator, and the assembly, the rotor adjusting in position the ring relative to the filter.
  • the motor comprises a loop for passing a fluid into the rotor, the filter being arranged in the loop.
  • the motor the ring is in frictional contact on the rotor.
  • the motor comprises a flange for guiding the rotor in rotation, the filter being held in position by its periphery by the flange.
  • the pump comprises a turbine driven in rotation by the rotor, the turbine being adapted to create a flow of fluid by centrifugation, the motor comprising a loop for passing a fluid through the rotor, the filter being disposed in the loop, and the centrifugation of the fluid by the turbine driving the fluid in the loop.
  • the ring is adjustable radially in position relative to the filter. This makes it possible to ensure optimization of the filtering while ensuring good positioning of the filter in an engine for example.
  • the ring is freely adjustable radially to the filter. This freedom allows the ring to be put in place when the engine is started.
  • the ring makes it possible to position the filter on the rotor of the motor.
  • the ring allows to limit the wear of the filter itself.
  • the figure 1 describes a view of a filter 1.
  • the filter 1 is disk-shaped, but it could have other shapes, square, oval, for example.
  • the filter 1 may be stainless steel or bronze or any other material having oxidation kinetics at least as slow as stainless steel or bronze.
  • the filter 1 can bathe in an oxidizing fluid. The materials envisaged then make it possible to increase the service life.
  • the filter 1 is of the same shape as the cavity which receives it so as to ensure optimal filtering.
  • the filter 1 has an orifice 120 at its center.
  • the orifice 120 is intended to allow the mounting of a ring 2 to the filter.
  • the orifice 120 is also intended to pass in its center a motor rotor (or a shaft driven by a motor rotor) to allow mounting of the filter on the rotor.
  • Around the orifice 120 comprises notches 11. The notches 11 guide the radial movement of the ring 2 as will be explained below.
  • the figure 2 describes a view of the ring 2.
  • the ring 2 is adapted to be mounted on the filter 1.
  • the ring 2 comprises an orifice 121 allowing the passage of the rotor (or a shaft driven by a motor rotor).
  • the ring is made of material allowing the sliding on the rotor passing through it, which limits the friction. This extends the life of the elements. Lower wear implies in the long run to limit the creation of a game allowing particles to pass. Lower wear therefore implies more efficient filtering.
  • the sliding of the ring 2 on the element therethrough also preserves the efficiency of the engine.
  • the ring 2 is made of material having an oxidation kinetics adapted for immersion in a fluid.
  • the material used is also softer than the material of the rotor.
  • plastics or composites can be used.
  • the ring 2 is made of plastic or any other material having the same aforementioned advantages.
  • the assembly makes it possible to replace the ring while preserving the filter. This allows less expensive maintenance operations.
  • the ring 2 comprises lugs 21 extending radially around its periphery.
  • the lugs 21 serve to guide the ring 2 in the notches 11 of the filter 11 which the ring 2 is mounted.
  • the figure 3 describes a view of the ring 2 mounted on the filter 1.
  • the filter and the ring can thus have a relative movement in their plane.
  • the filter and the ring may have a relative movement in a direction transverse to the rotor passing through the assembly constituted by the filter and the ring. in their plane.
  • the cooperation of the lugs 21 with the notches 11 allows the radial mobility of the ring 2 relative to the filter 1.
  • the notches 11 allow the ring 2 which is mounted on the filter 1 to have a predetermined radial clearance.
  • the game can be controlled.
  • the calibrated clearance between the notches 11 and the pins 21 pre-determines the maximum radial stroke of the ring 2. This clearance allows the dynamic compensation of imperfections of the rotor constructions on which the filter 1 and the ring 2 are mounted.
  • the lugs 211 1 cooperate with the notches 11 so as to adjust the ring 2 radially relative to the filter 1.
  • the lugs 212 make it possible to fix the filter 1 axially to the ring 2.
  • the lugs 212 make it possible to retain the filter 1 at the ring 2 along the rotor extending through the openings 120 and 121.
  • the lugs 212 are offset along the rotor with respect to the lugs 211, so as to create a space between the lugs 211 and a body 60 of the ring 2. According to the figure 3 the filter is trapped between the lugs 212 and the body 60.
  • the lugs 211 allow a radial displacement of the filter 1 with respect to the ring 2 thanks to the clearance between the bottom of the notches 11 and the lugs 211.
  • the mounting of the ring 2 on the filter 1 can be as follows. First, the lugs 212 are placed opposite the notches 11. The ring 2 is then pressed against the filter 1 transversely to the plane of the ring 2. In particular, the body 60 of the ring 2 is plated against the filter 1. The ring 2 is then rotated. The filter 1 is inserted between the lugs 212 and the body 60. The rotation is operated until the lugs 211 are in front of the notches 11. Such an assembly allows the filter 1 to be caught between the body 60 of the ring 2 and the pins 212. The filter 1 and the ring 2 are thus secured and the movement of one relative to the other along the rotor 40 is prohibited.
  • the lugs 21 may be on the filter or on the ring, the notches 11 being on the other element.
  • the figure 4 describes a pump section 3 comprising the assembly of the figure 3 .
  • the pump 3 comprises a motor 8.
  • the motor 8 comprises a stator 41 and a rotor 40.
  • the rotor 40 is rotated by the stator 41 in a rotor cavity 5.
  • a turbine 6 is fixed on one end of the rotor 40.
  • the rotor drives the turbine 6 in rotation.
  • the turbine 6 serves as a volute centrifuge. Centrifugation allows the circulation of the fluid in a pipe 80 according to the arrow 81.
  • the motor 8 may comprise a loop 42 for fluid passage.
  • the loop 42 circulates the fluid in the rotor cavity 5 and in the rotor 40.
  • the loop 42 serves to embed the rotor 40.
  • the loop 42 allows the lubrication of the rotating parts of the engine and the turbine.
  • the loop 42 also allows the reduction of the temperature generated by the engine in operation. Fluid circulation allows longer life of the rotating parts.
  • the circulation of the fluid makes it possible to reduce the level of noise relative to the motor without circulation. In addition, this technology implies a reduced cost.
  • the loop 42 extends from an inlet 301 to the outlet 302 through the filter 1 provided with the ring 2, a flange 70 having a hole 71, the rotor cavity 5 and the rotor 40 having a recess 43. along its axis 44.
  • the recess 43 opens radially into the rotor cavity 5 and longitudinally at one end of the rotor 40.
  • the inlet 301 of the loop 42 is connected to the pipe 80.
  • the outlet 302 of the loop 42 is also connected to the pipe 80.
  • the output 302 of the loop 42 opens into the turbine 6. This arrangement of the inlet and the outlet of the loop 42 makes it possible to divert the fluid in the loop 42.
  • the circulation of the fluid in the pipe 80 by the turbine 6 causes the derivation of the fluid to the inlet 301 and the circulation of the fluid in the Loop 42.
  • the fluid is reinjected at the loop outlet 42 in the pipe 80 in the center of the turbine.
  • the filter 1 is mounted generally, but not necessarily, on the rotor.
  • the filter 1 is in the loop 42.
  • the filter 1 is upstream of the loop 42, that is to say between the inlet 301 and the flange 70. This position makes it possible to filter the fluid entering the loop 42 and circulating in the rotor cavity 5 and the rotor 40. This avoids the wear of the rotor 40 by abrasive particles suspended in the fluid.
  • the circulation of fluid induced by the turbine 6 in the loop 42 does not allow the fluid to flow in the opposite direction. Any fluid enters the loop 42 through the inlet 301 and is filtered by the filter 1.
  • Figure 5 describes a detailed view of the assembly of the figure 3 mounted on the rotor 40.
  • the flange 70 keeps the rotor in the rotor cavity 5 and guide it in rotation by bearings 75.
  • the flange 70 has one or more holes 71 allowing the flow of fluid through the flange 70.
  • the filter 1 is force-fitted on the flange 70.
  • the ring 2 can rest against the bearing 75 in the direction of flow of the fluid in the loop 42.
  • the filter 1 is held in the loop 42 by its periphery against the flange 70 and in its central part by the ring 2 against the bearing 75.
  • the filter is held at the ring 2 in the direction of flow of the fluid in the loop 42 by the lugs 212.
  • the filter 1 is thus kept fixed in rotation around the rotor and fixed in translation in the direction of flow of the fluid in the loop 42.
  • the ring 2 is in friction on the rotor 40. This reduces the passage of particles on the periphery or in the center of the filter. Thus the filtering of the filter 1 is improved.
  • the rotation of the rotor 40 ensures the dynamic placement of the ring 2.
  • the radially movable ring 2 adapts to imperfections of the motor 8. The imperfections are, inter alia, the eccentricity of the rotor 40 and the vibratory movements induced by the rotation of it.
  • the rotor 40 reaches a stationary speed enabling the ring 2 to be placed in relation to the filter 1.
  • the axis 44 around which the rotor 40 is rotated may be slightly shifted transversely until finding its stationary position.
  • the transverse displacement of the rotor 40 is compensated at the filter 1 by the ring 2 which adjusts radially in position relative to the filter 1 by the clearance between the ring 2 and the filter 1.

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

Description

La présente invention concerne l'assemblage d'un filtre et d'une bague. Un tel assemblage est par exemple utilisé pour une pompe de circulation avec un moteur à rotor noyé.The present invention relates to the assembly of a filter and a ring. Such an assembly is for example used for a circulating pump with a motor with a drowned rotor.

Un tel assemblage est décrit dans le document US 3001 806 , dans la figure 10.Such an assembly is described in the document US 3001,806 in Figure 10.

Une pompe de circulation peut être utilisée dans des installations où un fluide tel que de l'eau est mis en circulation par la pompe. La pompe est entraînée par un moteur. Le moteur peut être du type à rotor noyé. Dans un tel moteur à rotor noyé, un fluide circule dans un évidement dans le rotor. Il peut s'agir du fluide mis en circulation par la pompe.A circulation pump can be used in installations where a fluid such as water is circulated by the pump. The pump is driven by a motor. The motor may be of the wet rotor type. In such a flooded motor, a fluid flows in a recess in the rotor. It may be the fluid circulated by the pump.

L'inconvénient de cette technologie est que le fluide circulant dans la cavité rotorique peut contenir des particules abrasives. Ces particules peuvent détériorer le moteur. Ces particules peuvent, par exemple, provenir du fluide lui-même ou de l'usure des pièces. Il existe alors, une nécessité de filtrer le fluide. L'utilisation d'un filtre impose des contraintes mécaniques et de construction.The disadvantage of this technology is that the fluid flowing in the rotor cavity may contain abrasive particles. These particles can damage the engine. These particles may, for example, come from the fluid itself or the wear of the parts. There is then a need to filter the fluid. The use of a filter imposes mechanical and construction constraints.

Pour palier l'inconvénient précédent un moyen d'améliorer le filtrage est d'utiliser un filtre disposé sur le rotor, le filtre étant en contact par frottement sur le rotor. Cependant, ce moyen use prématurément les pièces par le frottement. Un second inconvénient est l'accentuation de l'usure des pièces.To overcome the above disadvantage, a means of improving the filtering is to use a filter disposed on the rotor, the filter being in frictional contact with the rotor. However, this means prematurely wears the parts by friction. A second drawback is the accentuation of the wear of the parts.

Il y a donc un besoin pour un assemblage comportant un filtre et permettant d'optimiser le filtrage.There is therefore a need for an assembly comprising a filter and to optimize the filtering.

Pour cela, il est proposé un assemblage comprenant un filtre, et une bague montée sur le filtre, la bague étant ajustable radialement en position par rapport au filtre.For this, it is proposed an assembly comprising a filter, and a ring mounted on the filter, the ring being adjustable radially in position relative to the filter.

Selon une variante, la bague est montée sur le filtre avec un jeu radial prédéterminé.According to a variant, the ring is mounted on the filter with a predetermined radial clearance.

Selon une variante, la bague est bloquée en rotation par rapport au filtre.According to a variant, the ring is locked in rotation with respect to the filter.

Selon une variante, le filtre comporte des encoches, et la bague comporte des ergots s'Ă©tendant radialement dans les encoches.According to a variant, the filter comprises notches, and the ring comprises lugs extending radially in the notches.

Selon une variante, la bague comporte un corps et des ergots, le filtre Ă©tant entre les ergots et le corps.According to one variant, the ring comprises a body and lugs, the filter being between the lugs and the body.

Selon une variante, le filtre est en inox ou en bronze.According to one variant, the filter is made of stainless steel or bronze.

Selon une variante, la bague est en matière plastique.According to one variant, the ring is made of plastic.

Il est également proposé un moteur comprenant un stator, un rotor entraîné en rotation par le stator, et l'assemblage, le rotor ajustant en position la bague par rapport au filtre.There is also provided a motor comprising a stator, a rotor driven in rotation by the stator, and the assembly, the rotor adjusting in position the ring relative to the filter.

Selon une variante, le moteur comprend une boucle de passage d'un fluide dans le rotor, le filtre étant disposé dans la boucle.According to a variant, the motor comprises a loop for passing a fluid into the rotor, the filter being arranged in the loop.

Selon une variante, le moteur la bague est en contact par frottement sur le rotor.According to a variant, the motor the ring is in frictional contact on the rotor.

Selon une variante le moteur comprend un flasque de guidage du rotor en rotation, le filtre étant maintenu en position par sa périphérie par le flasque.According to a variant, the motor comprises a flange for guiding the rotor in rotation, the filter being held in position by its periphery by the flange.

Il est proposé une pompe comprenant le moteurIt is proposed a pump comprising the engine

Selon une variante, la pompe comprend une turbine entraînée en rotation par le rotor, la turbine étant adaptée à créer un flux de fluide par centrifugation, le moteur comprenant une boucle de passage d'un fluide dans le rotor, le filtre étant disposé dans la boucle, et la centrifugation du fluide par la turbine entraînant le fluide dans la boucle.According to one variant, the pump comprises a turbine driven in rotation by the rotor, the turbine being adapted to create a flow of fluid by centrifugation, the motor comprising a loop for passing a fluid through the rotor, the filter being disposed in the loop, and the centrifugation of the fluid by the turbine driving the fluid in the loop.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui suit des modes de réalisation de l'invention, donnés à titre d'exemple uniquement et en références aux dessins qui montrent :

  • figure 1, une vue d'un filtre;
  • figure 2, une vue d'une bague ;
  • figure 3, une vue de la bague montĂ©e sur le filtre ;
  • figure 4, une coupe de pompe comportant l'assemblage de la figure 3 ;
  • figure 5, une vue dĂ©taillĂ©e de l'assemblage de la figure 3 montĂ© sur le rotor.
Other features and advantages of the invention will appear on reading the following detailed description of the embodiments of the invention, given by way of example only and with reference to the drawings which show:
  • figure 1 , a view of a filter;
  • figure 2 , a view of a ring;
  • figure 3 a view of the ring mounted on the filter;
  • figure 4 , a pump cutter comprising the assembly of the figure 3 ;
  • figure 5 , a detailed view of the assembly of the figure 3 mounted on the rotor.

Il est proposé un assemblage d'un filtre et d'une bague, la bague étant montée sur le filtre. La bague est ajustable radialement en position par rapport au filtre. Ceci permet d'assurer une optimisation du filtrage tout en assurant un bon positionnement du filtre dans un moteur par exemple. La bague est librement ajustable radialement par rapport au filtre. Cette liberté permet à la bague de se mettre en place lors de la mise en fonctionnement du moteur.It is proposed an assembly of a filter and a ring, the ring being mounted on the filter. The ring is adjustable radially in position relative to the filter. This makes it possible to ensure optimization of the filtering while ensuring good positioning of the filter in an engine for example. The ring is freely adjustable radially to the filter. This freedom allows the ring to be put in place when the engine is started.

En effet, la bague permet de positionner le filtre sur le rotor du moteur. La bague permet limiter l'usure du filtre lui-mĂŞme.Indeed, the ring makes it possible to position the filter on the rotor of the motor. The ring allows to limit the wear of the filter itself.

La figure 1 décrit une vue d'un filtre 1. Le filtre 1 est en forme de disque, mais il pourrait avoir d'autres formes, carré, ovale, par exemple. Le filtre 1 peut être en inox ou en bronze ou tout autre matériau présentant une cinétique d'oxydation au moins aussi lente que l'inox ou le bronze. En particulier, le filtre 1 peut baigner dans un fluide oxydant. Les matériaux envisagés permettent alors d'augmenter la durée de vie. Le filtre 1 est de la même forme que la cavité qui l'accueille de manière à assurer un filtrage optimal.The figure 1 describes a view of a filter 1. The filter 1 is disk-shaped, but it could have other shapes, square, oval, for example. The filter 1 may be stainless steel or bronze or any other material having oxidation kinetics at least as slow as stainless steel or bronze. In particular, the filter 1 can bathe in an oxidizing fluid. The materials envisaged then make it possible to increase the service life. The filter 1 is of the same shape as the cavity which receives it so as to ensure optimal filtering.

Le filtre 1 possède un orifice 120 en son centre. L'orifice 120 est destiné à permettre le montage d'une bague 2 au filtre. L'orifice 120 est destiné également à laisser passer en son centre un rotor de moteur (ou un arbre entraîné par un rotor de moteur) pour permettre le montage du filtre sur le rotor. Le pourtour de l'orifice 120 comprend des encoches 11. Les encoches 11 permettent de guider le mouvement radial de la bague 2 comme cela sera explicité plus bas.The filter 1 has an orifice 120 at its center. The orifice 120 is intended to allow the mounting of a ring 2 to the filter. The orifice 120 is also intended to pass in its center a motor rotor (or a shaft driven by a motor rotor) to allow mounting of the filter on the rotor. Around the orifice 120 comprises notches 11. The notches 11 guide the radial movement of the ring 2 as will be explained below.

La figure 2 décrit une vue de la bague 2. La bague 2 est adaptée à être montée sur le filtre 1. La bague 2 comporte un orifice 121 permettant le passage du rotor (ou d'un arbre entraîné par un rotor de moteur).The figure 2 describes a view of the ring 2. The ring 2 is adapted to be mounted on the filter 1. The ring 2 comprises an orifice 121 allowing the passage of the rotor (or a shaft driven by a motor rotor).

La bague est en matière permettant le glissement sur le rotor la traversant, ce qui limite les frottements. Ceci allonge la durée de vie des éléments. Une usure plus faible implique à long terme de limiter la création d'un jeu laissant passer des particules. Une usure plus faible implique donc un filtrage plus efficace. Le glissement de la bague 2 sur l'élément la traversant préserve également le rendement du moteur. La bague 2 est en matière ayant une cinétique d'oxydation adaptée pour l'immersion dans un fluide. Avantageusement, la matière utilisée est également plus tendre que la matière du rotor. A titre d'exemple les matières plastiques ou composites peuvent être utilisées. La bague 2 est en matière plastique ou en tout autre matériau présentant les mêmes avantages précités. L'assemblage permet de remplacer la bague tout en conservant le filtre. Ceci permet des opérations de maintenance moins coûteuse.The ring is made of material allowing the sliding on the rotor passing through it, which limits the friction. This extends the life of the elements. Lower wear implies in the long run to limit the creation of a game allowing particles to pass. Lower wear therefore implies more efficient filtering. The sliding of the ring 2 on the element therethrough also preserves the efficiency of the engine. The ring 2 is made of material having an oxidation kinetics adapted for immersion in a fluid. Advantageously, the material used is also softer than the material of the rotor. For example, plastics or composites can be used. The ring 2 is made of plastic or any other material having the same aforementioned advantages. The assembly makes it possible to replace the ring while preserving the filter. This allows less expensive maintenance operations.

La bague 2 comporte des ergots 21 s'Ă©tendant radialement sur son pourtour.
Entre autres, les ergots 21 ont pour fonction de guider la bague 2 dans les encoches 11 du filtre 11 lequel la bague 2 est montée.The ring 2 comprises lugs 21 extending radially around its periphery.
Among others, the lugs 21 serve to guide the ring 2 in the notches 11 of the filter 11 which the ring 2 is mounted.

La figure 3 décrit une vue de la bague 2 montée sur le filtre 1. La bague et le filtre ou un jeu relatif. Le filtre et la bague peuvent ainsi avoir un mouvement relatif dans leur plan. Le filtre et la bague peuvent avoir un mouvement relatif dans une direction transversale au rotor traversant l'assemblage constitué par le filtre et la bague. dans leur plan.La coopération des ergots 21 avec les encoches 11 permet la mobilité radiale de la bague 2 par rapport au filtre 1. Les encoches 11 permettent à la bague 2 qui est montée sur le filtre 1 d'avoir un jeu radial prédéterminé. Le jeu peut donc être maîtrisé. Le jeu calibré entre les encoches 11 et les ergots 21 pré-détermine la course radiale maximale de la bague 2. Ce jeu permet la compensation dynamique des imperfections de constructions du rotor sur lequel sont montés le filtre 1 et la bague 2.The figure 3 describes a view of the ring 2 mounted on the filter 1. The ring and the filter or a relative game. The filter and the ring can thus have a relative movement in their plane. The filter and the ring may have a relative movement in a direction transverse to the rotor passing through the assembly constituted by the filter and the ring. in their plane.The cooperation of the lugs 21 with the notches 11 allows the radial mobility of the ring 2 relative to the filter 1. The notches 11 allow the ring 2 which is mounted on the filter 1 to have a predetermined radial clearance. The game can be controlled. The calibrated clearance between the notches 11 and the pins 21 pre-determines the maximum radial stroke of the ring 2. This clearance allows the dynamic compensation of imperfections of the rotor constructions on which the filter 1 and the ring 2 are mounted.

Il y a deux types d'ergots 21. Les ergots 211 1 coopèrent avec les encoches 11 de manière à ajuster radialement la bague 2 par rapport au filtre 1. Les ergots 212 permettent de fixer axialement le filtre 1 à la bague 2. En d'autres termes, les ergots 212 permettent de retenir le filtre 1 à la bague 2 le long du rotor s'étendant à travers les ouvertures 120 et 121. Les ergots 212 sont décalés le long du rotor par rapport aux ergots 211, de sorte à créer un espace entre les ergots 211 et un corps 60 de la bague 2. Selon la figure 3, le filtre est emprisonné entre les ergots 212 et le corps 60. Les ergots 211 permettent un déplacement radial du filtre 1 par rapport à la bague 2 grâce au jeu entre le fond des encoches 11 et les ergots 211.There are two types of lugs 21. The lugs 211 1 cooperate with the notches 11 so as to adjust the ring 2 radially relative to the filter 1. The lugs 212 make it possible to fix the filter 1 axially to the ring 2. In other words, the lugs 212 make it possible to retain the filter 1 at the ring 2 along the rotor extending through the openings 120 and 121. The lugs 212 are offset along the rotor with respect to the lugs 211, so as to create a space between the lugs 211 and a body 60 of the ring 2. According to the figure 3 the filter is trapped between the lugs 212 and the body 60. The lugs 211 allow a radial displacement of the filter 1 with respect to the ring 2 thanks to the clearance between the bottom of the notches 11 and the lugs 211.

Le montage de la bague 2 sur le filtre 1 peut être de la manière suivante. Tout d'abord, les ergots 212 sont mis en vis-à-vis des encoches 11. La bague 2 est ensuite plaquée contre le filtre 1 transversalement au plan de la bague 2. En particulier, le corps 60 de la bague 2 est plaqué contre le filtre 1. La bague 2 subit ensuite une rotation. Le filtre 1 s'insère entre les ergots 212 et le corps 60. La rotation est opérée jusqu'à ce que les ergots 211 se trouvent en face des encoches 11. Un tel montage permet au filtre 1 d'être pris entre le corps 60 de la bague 2 et les ergots 212. Le filtre 1 et la bague 2 sont ainsi solidarisés et le mouvements de l'un par rapport à l'autre le long du rotor 40 est prohibé.The mounting of the ring 2 on the filter 1 can be as follows. First, the lugs 212 are placed opposite the notches 11. The ring 2 is then pressed against the filter 1 transversely to the plane of the ring 2. In particular, the body 60 of the ring 2 is plated against the filter 1. The ring 2 is then rotated. The filter 1 is inserted between the lugs 212 and the body 60. The rotation is operated until the lugs 211 are in front of the notches 11. Such an assembly allows the filter 1 to be caught between the body 60 of the ring 2 and the pins 212. The filter 1 and the ring 2 are thus secured and the movement of one relative to the other along the rotor 40 is prohibited.

Les ergots 21 peuvent être sur le filtre ou sur la bague, les encoches 11 étant sur l'autre élément.The lugs 21 may be on the filter or on the ring, the notches 11 being on the other element.

La figure 4 décrit une coupe de pompe 3 comportant l'assemblage de la figure 3. La pompe 3 comporte un moteur 8. Le moteur 8 comporte un stator 41 et un rotor 40. Le rotor 40 est entraîné en rotation par le stator 41 dans une cavité rotorique 5. Une turbine 6 se trouve fixée sur une extrémité du rotor 40. Le rotor entraîne en rotation la turbine 6. La turbine 6 sert de centrifugeuse à volute. La centrifugation permet la circulation du fluide dans une canalisation 80 selon la flèche 81.The figure 4 describes a pump section 3 comprising the assembly of the figure 3 . The pump 3 comprises a motor 8. The motor 8 comprises a stator 41 and a rotor 40. The rotor 40 is rotated by the stator 41 in a rotor cavity 5. A turbine 6 is fixed on one end of the rotor 40. The rotor drives the turbine 6 in rotation. The turbine 6 serves as a volute centrifuge. Centrifugation allows the circulation of the fluid in a pipe 80 according to the arrow 81.

Le moteur 8 peut comporter une boucle 42 de passage de fluide. La boucle 42 fait circuler le fluide dans la cavité rotorique 5 et dans le rotor 40. La boucle 42 permet de noyer le rotor 40. La boucle 42 permet la lubrification des pièces pivotantes du moteur et de la turbine. La boucle 42 permet également la réduction de la température générée par le moteur en fonctionnement. La circulation du fluide permet l'allongement de la durée de vie des pièces pivotantes. De plus, la circulation du fluide permet de réduire le niveau de bruit par rapport au moteur sans circulation. En outre cette technologie implique pour cela un coût réduit.The motor 8 may comprise a loop 42 for fluid passage. The loop 42 circulates the fluid in the rotor cavity 5 and in the rotor 40. The loop 42 serves to embed the rotor 40. The loop 42 allows the lubrication of the rotating parts of the engine and the turbine. The loop 42 also allows the reduction of the temperature generated by the engine in operation. Fluid circulation allows longer life of the rotating parts. In addition, the circulation of the fluid makes it possible to reduce the level of noise relative to the motor without circulation. In addition, this technology implies a reduced cost.

La boucle 42 s'étend depuis une entrée 301 jusqu'à la sortie 302 au travers du filtre 1 muni de la bague 2, d'un flasque 70 comportant un trou 71, de la cavité rotorique 5 et du rotor 40 comportant un évidement 43 le long de son axe 44. L'évidement 43 débouche radialement dans la cavité rotorique 5 et longitudinalement à une extrémité du rotor 40. L'entrée 301 de la boucle 42 est connectée à la canalisation 80. La sortie 302 de la boucle 42 est connectée également à la canalisation 80. La sortie 302 de la boucle 42 débouche dans la turbine 6. Cette disposition de l'entrée et de la sortie de la boucle 42 permet de faire dériver le fluide dans la boucle 42. La circulation du fluide dans la canalisation 80 par la turbine 6 provoque la dérivation du fluide vers l'entrée 301 et la circulation du fluide dans la boucle 42. Le fluide est réinjectée en sortie de boucle 42 dans la canalisation 80 au centre de la turbine.The loop 42 extends from an inlet 301 to the outlet 302 through the filter 1 provided with the ring 2, a flange 70 having a hole 71, the rotor cavity 5 and the rotor 40 having a recess 43. along its axis 44. The recess 43 opens radially into the rotor cavity 5 and longitudinally at one end of the rotor 40. The inlet 301 of the loop 42 is connected to the pipe 80. The outlet 302 of the loop 42 is also connected to the pipe 80. The output 302 of the loop 42 opens into the turbine 6. This arrangement of the inlet and the outlet of the loop 42 makes it possible to divert the fluid in the loop 42. The circulation of the fluid in the pipe 80 by the turbine 6 causes the derivation of the fluid to the inlet 301 and the circulation of the fluid in the Loop 42. The fluid is reinjected at the loop outlet 42 in the pipe 80 in the center of the turbine.

Le filtre 1 est monté généralement, mais pas obligatoirement, sur le rotor. Le filtre 1 se trouve dans la boucle 42. Avantageusement le filtre 1 se trouve en amont de la boucle 42, c'est-à-dire entre l'entrée 301 et le flasque 70. Cette position permet de filtrer le fluide pénétrant dans la boucle 42 et circulant dans la cavité rotorique 5 et le rotor 40. Ceci permet d'éviter l'usure du rotor 40 par des particules abrasive en suspension dans le fluide. La circulation de fluide induit par la turbine 6 dans la boucle 42 ne permet pas au fluide de circuler dans le sens inverse. Tout fluide entre dans la boucle 42 par l'entrée 301 et est donc filtré par le filtre 1.The filter 1 is mounted generally, but not necessarily, on the rotor. The filter 1 is in the loop 42. Advantageously the filter 1 is upstream of the loop 42, that is to say between the inlet 301 and the flange 70. This position makes it possible to filter the fluid entering the loop 42 and circulating in the rotor cavity 5 and the rotor 40. This avoids the wear of the rotor 40 by abrasive particles suspended in the fluid. The circulation of fluid induced by the turbine 6 in the loop 42 does not allow the fluid to flow in the opposite direction. Any fluid enters the loop 42 through the inlet 301 and is filtered by the filter 1.

Figure 5 décrit une vue détaillée de l'assemblage de la figure 3 monté sur le rotor 40. Le flasque 70 permet de maintenir le rotor dans la cavité rotorique 5 et de le guider en rotation par des paliers 75. Le flasque 70 comporte un ou plusieurs trous 71 permettant la circulation du fluide au travers du flasque 70. Figure 5 describes a detailed view of the assembly of the figure 3 mounted on the rotor 40. The flange 70 keeps the rotor in the rotor cavity 5 and guide it in rotation by bearings 75. The flange 70 has one or more holes 71 allowing the flow of fluid through the flange 70.

Le filtre 1 est emmanché en force sur le flasque 70. La bague 2 peut reposer contre le palier 75 dans le sens d'écoulement du fluide dans la boucle 42. Le filtre 1 est maintenu dans la boucle 42 par sa périphérie contre le flasque 70 et par sa partie centrale par la bague 2 contre le palier 75. En particulier, le filtre est maintenu à la bague 2 dans le sens d'écoulement du fluide dans la boucle 42 par les ergots 212. Le filtre 1 est ainsi maintenu fixe en rotation autour du rotor et fixe en translation dans le sens d'écoulement du fluide dans la boucle 42. La bague 2 est en frottement sur le rotor 40. Ceci permet de réduire le passage de particules sur la périphérie ou au centre du filtre. Ainsi le filtrage du filtre 1 est amélioré.The filter 1 is force-fitted on the flange 70. The ring 2 can rest against the bearing 75 in the direction of flow of the fluid in the loop 42. The filter 1 is held in the loop 42 by its periphery against the flange 70 and in its central part by the ring 2 against the bearing 75. In particular, the filter is held at the ring 2 in the direction of flow of the fluid in the loop 42 by the lugs 212. The filter 1 is thus kept fixed in rotation around the rotor and fixed in translation in the direction of flow of the fluid in the loop 42. The ring 2 is in friction on the rotor 40. This reduces the passage of particles on the periphery or in the center of the filter. Thus the filtering of the filter 1 is improved.

La rotation du rotor 40 assure la mise en place dynamique de la bague 2. La bague 2 mobile radialement s'adapte aux imperfections du moteur 8. Les imperfections sont, entre autres, l'excentricité du rotor 40 et les mouvements vibratoires induits par la rotation de celui-ci. A la mise en fonctionnement, le rotor 40 atteint un régime stationnaire permettant la mise en place de la bague 2 par rapport au filtre 1. En d'autres termes, l'axe 44 autour duquel le rotor 40 est entraîné en rotation peut être légèrement décalé transversalement jusqu'à trouver sa position en régime stationnaire. Le déplacement transversal du rotor 40 est compensé au niveau du filtre 1 par la bague 2 qui s'ajuste radialement en position par rapport au filtre 1 grâce au jeu entre la bague 2 et le filtre 1.The rotation of the rotor 40 ensures the dynamic placement of the ring 2. The radially movable ring 2 adapts to imperfections of the motor 8. The imperfections are, inter alia, the eccentricity of the rotor 40 and the vibratory movements induced by the rotation of it. At start-up, the rotor 40 reaches a stationary speed enabling the ring 2 to be placed in relation to the filter 1. In other words, the axis 44 around which the rotor 40 is rotated may be slightly shifted transversely until finding its stationary position. The transverse displacement of the rotor 40 is compensated at the filter 1 by the ring 2 which adjusts radially in position relative to the filter 1 by the clearance between the ring 2 and the filter 1.

Claims (13)

  1. An assembly comprising
    - a filter (1), and
    - a ring (2) mounted on the filter (1), the ring being adjustable in position radially with respect to the filter.
  2. The assembly of claim 1, wherein the ring (2) is mounted on the filter (1) with a predetermined radial clearance.
  3. The assembly of claim 1 or 2, wherein the ring (2) is blocked in rotation relative to the filter (1).
  4. The assembly according to one of claims 1 to 3, wherein
    - the filter (1) includes notches (11), and
    - the ring (2) includes lugs (21, 211) extending radially into the notches (11).
  5. The assembly according to one of the preceding claims, the ring (2) having a body (60) and lugs (21, 212), the filter (1) being between the lugs (21, 212) and the body (60).
  6. The assembly according to one of the preceding claims, wherein the filter (1) is of stainless steel or bronze.
  7. The assembly according to one of the preceding claims, wherein the ring (2) is made of plastic.
  8. A motor comprising
    - a stator (41) and a rotor (40) driven in rotation by the stator, and
    - the assembly of any one of the preceding claims, the rotor (40) adjusting the ring in position relative to the filter.
  9. The motor according to Claim 8, the motor comprising a loop (42) for fluid passage in the rotor, the filter (1) being arranged in the loop.
  10. The motor according to one of claims 8 or 9, wherein the ring (2) is in frictional contact on the rotor.
  11. The motor according to one of claims 8 to 10, comprising a flange for guiding the rotor in rotation, the filter (1) being held in position at its periphery by the flange.
  12. A pump comprising the motor according to one of claims 8 to 11.
  13. The pump according to claim 12, comprising
    - an impeller (6) driven in rotation by the rotor, the impeller being adapted to create a flow of fluid by centrifuge action,
    the motor comprising a loop (42) for fluid passage in the rotor, the filter being arranged in the loop (42), and centrifuge action on the fluid by the impeller driving the fluid through the loop (42).
EP09290165.1A 2009-03-06 2009-03-06 Assembly of a filter and a ring Active EP2226506B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL09290165T PL2226506T3 (en) 2009-03-06 2009-03-06 Assembly of a filter and a ring
EP09290165.1A EP2226506B1 (en) 2009-03-06 2009-03-06 Assembly of a filter and a ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09290165.1A EP2226506B1 (en) 2009-03-06 2009-03-06 Assembly of a filter and a ring

Publications (2)

Publication Number Publication Date
EP2226506A1 EP2226506A1 (en) 2010-09-08
EP2226506B1 true EP2226506B1 (en) 2014-09-24

Family

ID=40937414

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09290165.1A Active EP2226506B1 (en) 2009-03-06 2009-03-06 Assembly of a filter and a ring

Country Status (2)

Country Link
EP (1) EP2226506B1 (en)
PL (1) PL2226506T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2428681A1 (en) 2010-09-08 2012-03-14 Pompes Salmson Circulation pump
EP3181909B1 (en) * 2015-12-14 2020-04-08 Wilo Se Compact sealing ring unit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3001806A (en) * 1954-10-14 1961-09-26 Macks Elmer Fred Seal
DE1728075A1 (en) * 1968-08-21 1972-03-09 Bauknecht Gmbh G Radial centrifugal pump without shaft feed-through
CH532201A (en) * 1970-12-11 1972-12-31 Inventio Ag Lubricating and filtering device for circulation pumps
CA1158922A (en) * 1980-05-02 1983-12-20 James P. Larson Free floating sealing disk for centrifugal fluid pump
JP4532142B2 (en) * 2003-12-22 2010-08-25 株式会社荏原製作所 Fluid machinery sealing mechanism or centrifugal pump

Also Published As

Publication number Publication date
EP2226506A1 (en) 2010-09-08
PL2226506T3 (en) 2015-07-31

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