EP0394140A1 - Fluid circulation and distribution apparatus - Google Patents

Fluid circulation and distribution apparatus Download PDF

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Publication number
EP0394140A1
EP0394140A1 EP90401077A EP90401077A EP0394140A1 EP 0394140 A1 EP0394140 A1 EP 0394140A1 EP 90401077 A EP90401077 A EP 90401077A EP 90401077 A EP90401077 A EP 90401077A EP 0394140 A1 EP0394140 A1 EP 0394140A1
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EP
European Patent Office
Prior art keywords
turbine
blades
pallet
inlets
pump
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Granted
Application number
EP90401077A
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German (de)
French (fr)
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EP0394140B1 (en
Inventor
Pascal Saniez
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Wilo Salmson Components SA
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Icf Sarl
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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
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0016—Control, e.g. regulation, of pumps, pumping installations or systems by using valves mixing-reversing- or deviation valves

Definitions

  • the present invention relates to a fluid circulation and distribution apparatus, and in particular a three-way pump.
  • Three-way pumps are known in which the opening and / or closing of the channels depends on the operating conditions of the pump.
  • pumps which have an inlet and two outlets, each of which is supplied as a function of the direction of rotation of the turbine.
  • Swiss Patent No. 499018 proposed a three-way pump with a single outlet and two inlets.
  • a diaphragm or membrane system is used defining two sealed chambers, one of which is in relation to the pump outlet and therefore at high pressure, and the other of which is in relation to the inlet of the volute and therefore at low pressure.
  • the difference in pressures which results therefrom on either side of the diaphragm ensures, together with a calibrated spring, the closing and / or opening of the liquid inlet orifices.
  • This system has the double disadvantage of requiring an absolute seal between the two chambers. on the other side of the membrane, and a meticulous tare adjustment mechanism, which must also be adjustable from the outside, since there is no direct access.
  • the object of the present invention is to remedy these drawbacks by proposing a fluid circulation device with at least two inlets and one outlet, of simple construction, usable both in open circuit and in closed circuit and allowing closing and / or l 'selective opening of each of the entrances under very simple conditions.
  • It relates to a fluid circulation device with two inlets and an outlet, with a partition defining a suction chamber in which the two inlets are located as well as their closing devices, and a discharge chamber constituting a volute in which turns a turbine with two directions of rotation, characterized in that it comprises, in the discharge chamber, mobile means capable of ensuring, as a function of the flow of fluid, the control of the closing devices of the two inlets.
  • the movable means arranged in the delivery chamber are constituted by a pallet which can oscillate around an axis diametrically opposite to said pallet relative to the axis of the turbine and parallel to it , the closing devices of the two inlets being integral with said pallet and oscillating around the same axis.
  • the lever arm thus obtained increases the pressure ensuring the closure of one or the other of the inlets.
  • the device comprises a symmetrical volute, the movable pallet reconstituting, in its extreme positions, an asymmetrical geometry of the volute, so as to promote the flow of the fluid in the direction of turbine rotation.
  • the invention also provides for improving the efficiency of the turbine by equipping it with radial blades of various lengths, the alternation of such blades of different lengths ensuring better flow of the liquid through the turbine.
  • the pump illustrated in FIGS. 1 to 5 consists of a motor 1 and a pump body 2.
  • a partition 3 divides this pump body into two parts: a suction chamber 6 and a discharge chamber 4. This constitutes a volute in which a turbine 5 rotates and the two chambers are connected by a passage 7 through which passes the suction nozzle 8 of the turbine 5.
  • discharge chamber 4 does not have the asymmetrical profile which participates, in normal volutes, in the movement towards the outlet of the current of centrifugal fluid created by the rotation of the turbine.
  • a part 10 in the form of a circular crown, as it appears in FIG. 4, carries, on the one hand, a pallet 11 which is placed immediately upstream of the outlet 9 of the delivery chamber, and on the other hand, a axis 12, diametrically opposite to the pallet 11 relative to the axis of the turbine 5, and passing through the partition 3 to open into the suction chamber 6.
  • the end of the axis 12 carries an arm 13 to which it is secured by a screw 25 and this arm carries, in turn, a valve body 14 with two faces 15 and 16.
  • the suction chamber 6 has three orifices: an orifice 17, closed by a plug 18, which allows access to said suction chamber, and two other orifices located face to face and arranged on the same axis.
  • One of these orifices carries a nozzle 21, one end of which 19 constitutes an inlet to the pump and the other end of which opens into a pipe (not shown) connected to a source of water.
  • the other orifice carries a nozzle 22, one end of which constitutes the second inlet of the pump and the other end of which opens into a pipe (not shown) connected to another source of water.
  • the motor 1 has a control, not shown, with two operating positions, one ensuring the rotation of the turbine in the direction of the arrow in solid line 23 in FIG. 4, and the other in the direction of the arrow in dotted lines 24 of the same figure.
  • the turbine illustrated in FIG. 6 is different from that appearing in FIG. 4 in particular in that it is equipped with blades of different lengths.
  • a blade 43 has been placed, the length of which is substantially half of a large blade and, halfway between the large blades 42 and the half-length blades 43, the blades 44 are available, the length of which is substantially half of the half-length blades 43.
  • the pallet 11 modifies the internal geometry of the delivery chamber and thus participates in guiding towards the outlet of the centrifugal current created by the turbine.
  • the centrifugal current then created in the discharge chamber 4 is established in the same direction and exerts, on the pallet 11, a pressure which will cause the angular displacement of the circular part 10 until said pallet 11 comes position on the other side of the outlet 9, in a position symmetrical to that illustrated in Figure 3.
  • the vane 11 has several different functions: it detects the direction of rotation of the turbine via the liquid ring created, it transmits the information to the valve body 14 via the circular part 10 and the axis 12, and it participates in the good flow of the liquid ring towards the outlet 9.
  • the pump illustrated in FIGS. 7 and 8 comprises a closed body 26, the separation between the suction chamber 27 and the discharge chamber 28 being obtained by a removable partition 29 comprising a central orifice 30 which connects the two chambers and in which is located locates the suction nozzle of the turbine not shown.
  • a pallet 31 is carried by a circular arm 32 having an axis 33 journalled in a boss 34 of the removable partition 29.
  • An arm 35 carrying a valve 36 with two faces 37 and 38 is integral with the axis 33.
  • the valve 36 made of elastic material, is articulated on a ball joint 39 at the end of the arm 35 by virtue of a housing 45 giving it sufficient angular freedom relative to the arm 35 to close one or the other of the two end pieces. 40 and 41 constituting the two inputs of the pump.
  • a first advantage of the embodiments described is that the entire multi-way valve function does not require any system for sealing the fluid with respect to the outside, no moving part being in contact with the latter.
  • a second advantage is the significant improvement in the efficiency of the pump obtained by the transformation of a symmetrical delivery chamber into an asymmetrical chamber ensuring the good flow of the centrifugal fluid current, whatever the direction of rotation of the turbine.
  • a third advantage is the fact of ensuring, at will, either the sealing between two circuits, or on the contrary their automatic junction under certain conditions. For this, it suffices to play on the dimensions, the shape or the like of the pallet, or on the sections of the entries so as to vary the opposing pressure to the closing pressure.
  • valves 11 or 31 It would be possible, for example, to control the valves by an electromagnetic system which would ensure their placement in order to close one or the other of the inputs as a function of information transmitted by the pallets 11 or 31.
  • the described pump has two inlets placed face to face. It is obvious that it could count more and that would be otherwise arranged, for example, shifted as necessary.
  • the example described relates to an apparatus for circulation and distribution of a liquid
  • the invention also applies to apparatus for circulation and distribution of gaseous fluids.

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

Abstract

The invention relates to a fluid circulation and distribution apparatus with two inlets (19, 20) and one outlet (9), with a partition (3) defining an intake chamber (6), in which the two inlets (19, 20) are located together with their closing devices (15, 16), and a discharge chamber (4) forming a shell in which rotates a turbine (5) capable of rotating in both directions. It comprises, in the discharge chamber (4), mobile elements capable of controlling the closing devices (15, 16) of the two inlets (19, 20) as a function of the fluid flow. <IMAGE>

Description

La présente invention concerne un appareil de circulation et de distribution de fluide, et notamment une pompe à trois voies.The present invention relates to a fluid circulation and distribution apparatus, and in particular a three-way pump.

On connaît des pompes à trois voies dans lesquelles l'ouverture et/ou la fermeture des voies dépendent des conditions de fonctionnement de la pompe.Three-way pumps are known in which the opening and / or closing of the channels depends on the operating conditions of the pump.

On connaît en particulier des pompes comportant une entrée et deux sorties dont chacune est alimentée en fonction du sens de rotation de la turbine.In particular, pumps are known which have an inlet and two outlets, each of which is supplied as a function of the direction of rotation of the turbine.

Outre les remous importants créés par la présence de dispositifs mécaniques dans la volute, le principal inconvénient de ces pompes est que les dispositifs de fermeture des sorties qu'elles comportent ne fonctionnent que sur des sorties au-delà desquelles il n'existe pas de pression susceptible de s'opposer à l'action des dispositifs de fermeture.In addition to the significant eddies created by the presence of mechanical devices in the volute, the main drawback of these pumps is that the devices for closing the outlets which they comprise only work on outlets beyond which there is no pressure. likely to oppose the action of the closing devices.

C'est pourquoi ces pompes ne sont pas utilisables en circuit fermé puisque, sur de tels circuits, la pression créée à la sortie ouverte se répercute immédiatement, aux pertes de charges près du réseau, sur l'autre sortie et s'opposent ainsi à la fermeture de celle-ci. A fortiori, ces pompes ne sont-elles pas utilisables pour deux entrées et une sortie, puisqu'en amont d'une entrée de pompe, il y a toujours une pression positive.This is why these pumps cannot be used in a closed circuit since, on such circuits, the pressure created at the open outlet is immediately reflected, at the pressure drops near the network, on the other outlet and thus oppose closing it. A fortiori, these pumps cannot be used for two inputs and one output, since upstream of a pump input, there is always a positive pressure.

Le brevet suisse n° 499018 a proposé une pompe à trois voies comportant une seule sortie et deux entrées. Pour assurer la fermeture de l'une ou l'autre des entrées malgré la pression à laquelle se trouve le liquide en amont de cette entrée, on utilise un système à diaphragme ou membrane définissant deux chambres étanches dont l'une est en relation avec la sortie de la pompe et donc à haute pression, et dont l'autre est en relation avec l'entrée de la volute et donc à basse pression. La différence des pressions qui en découle de part et d'autre du diaphragme assure, conjointement avec un ressort taré, la fermeture et/ou l'ouverture des orifices d'entrée du liquide.Swiss Patent No. 499018 proposed a three-way pump with a single outlet and two inlets. To ensure the closure of one or other of the inlets despite the pressure at which the liquid is located upstream of this inlet, a diaphragm or membrane system is used defining two sealed chambers, one of which is in relation to the pump outlet and therefore at high pressure, and the other of which is in relation to the inlet of the volute and therefore at low pressure. The difference in pressures which results therefrom on either side of the diaphragm ensures, together with a calibrated spring, the closing and / or opening of the liquid inlet orifices.

Ce système présente le double inconvénient de nécessiter une étanchéité absolue entre les deux chambres de part et d'autre de la membrane, et un mécanisme minutieux de réglage de la tare, qui doit de plus être réglable de l'extérieur, puisqu' il n'y a pas d'accès direct.This system has the double disadvantage of requiring an absolute seal between the two chambers. on the other side of the membrane, and a meticulous tare adjustment mechanism, which must also be adjustable from the outside, since there is no direct access.

La présente invention a pour but de remédier à ces inconvénients en proposant un appareil de circulation de fluide à au moins deux entrées et une sortie, de construction simple, utilisable tant en circuit ouvert qu'en circuit fermé et permettant la fermeture et/ou l'ouverture sélective de chacune des entrées dans des conditions de très grande simplicité.The object of the present invention is to remedy these drawbacks by proposing a fluid circulation device with at least two inlets and one outlet, of simple construction, usable both in open circuit and in closed circuit and allowing closing and / or l 'selective opening of each of the entrances under very simple conditions.

Elle a pour objet un appareil de circulation de fluide à deux entrées et une sortie, avec une cloison définissant une chambre d'aspiration dans laquelle se trouvent les deux entrées ainsi que leurs dispositifs de fermeture, et une chambre de refoulement constituant une volute dans laquelle tourne une turbine à double sens de rotation, caractérisé en ce qu'il comporte, dans la chambre de refoulement, des moyens mobiles susceptibles d'assurer, en fonction du courant de fluide, la commande des dispositifs de fermeture des deux entrées.It relates to a fluid circulation device with two inlets and an outlet, with a partition defining a suction chamber in which the two inlets are located as well as their closing devices, and a discharge chamber constituting a volute in which turns a turbine with two directions of rotation, characterized in that it comprises, in the discharge chamber, mobile means capable of ensuring, as a function of the flow of fluid, the control of the closing devices of the two inlets.

Suivant une réalisation intéressante de l'invention, les moyens mobiles disposés dans la chambre de refoulement sont constitués par une palette pouvant osciller autour d'un axe diamétralement opposé à ladite palette par rapport à l'axe de la turbine et parallèle à celui-ci, les dispositifs de fermeture des deux entrées étant solidaires de ladite palette et oscillant autour du même axe. Le bras de levier ainsi obtenu augmente la pression assurant la fermeture de l'une ou l'autre des entrées.According to an advantageous embodiment of the invention, the movable means arranged in the delivery chamber are constituted by a pallet which can oscillate around an axis diametrically opposite to said pallet relative to the axis of the turbine and parallel to it , the closing devices of the two inlets being integral with said pallet and oscillating around the same axis. The lever arm thus obtained increases the pressure ensuring the closure of one or the other of the inlets.

Dans une variante de réalisation particulièrement intéressante de l'invention, l'appareil comporte une volute symétrique, la palette mobile reconstituant, dans ses positions extrêmes, une géométrie asymétrique de la volute, de manière à favoriser l'écoulement du fluide suivant le sens de rotation de la turbine.In a particularly advantageous variant of the invention, the device comprises a symmetrical volute, the movable pallet reconstituting, in its extreme positions, an asymmetrical geometry of the volute, so as to promote the flow of the fluid in the direction of turbine rotation.

Appliquée à une pompe, l'invention prévoit également d'améliorer le rendement de la turbine en l'équipant d'aubes radiales de diverses longueurs, l'alternance de telles aubes de différentes longueurs assurant un meilleur écoulement du liquide à travers la turbine.Applied to a pump, the invention also provides for improving the efficiency of the turbine by equipping it with radial blades of various lengths, the alternation of such blades of different lengths ensuring better flow of the liquid through the turbine.

D'autres caractéristiques et avantages de l'invention apparaîtront au cours de la description qui va suivre en se référant aux plans joints illustrant deux exemples, donnés à titre purement indicatif et nullement limitatif, de réalisation de la présente invention.

  • La figure 1 est une vue latérale en élévation d'une pompe selon l'invention.
  • La figure 2 est une vue suivant II-II de la figure 1.
  • La figure 3 est une vue suivant III-III de la figure 2 mais à plus grande échelle.
  • La figure 4 est une coupe suivant IV-IV de la figure 3
  • La figure 5 est une coupe suivant V-V de la figure 3.
  • La figure 6 est une vue avec coupe partielle d'une turbine pouvant équiper une pompe suivant l'invention.
  • La figure 7 est une coupe verticale axiale d'une variante de réalisation, turbine enlevée.
  • La figure 8 est une coupe suivant VIII-VIII de la figure 7.
Other characteristics and advantages of the invention will appear during the description which follows, with reference to the accompanying drawings illustrating two examples, given by way of purely indicative and in no way limitative, of embodiment of the present invention.
  • Figure 1 is a side elevational view of a pump according to the invention.
  • Figure 2 is a view along II-II of Figure 1.
  • Figure 3 is a view along III-III of Figure 2 but on a larger scale.
  • Figure 4 is a section on IV-IV of Figure 3
  • FIG. 5 is a section along VV of FIG. 3.
  • Figure 6 is a partial sectional view of a turbine that can equip a pump according to the invention.
  • Figure 7 is an axial vertical section of an alternative embodiment, turbine removed.
  • Figure 8 is a section along VIII-VIII of Figure 7.

La pompe illustrée aux figures 1 à 5 se compose d'un moteur 1 et d'un corps de pompe 2.The pump illustrated in FIGS. 1 to 5 consists of a motor 1 and a pump body 2.

Une cloison 3 divise ce corps de pompe en deux parties : une chambre d'aspiration 6 et une chambre de refoulement 4. Celle-ci constitue une volute dans laquelle tourne une turbine 5 et les deux chambres sont reliées par un passage 7 à travers lequel passe le nez d'aspiration 8 de la turbine 5.A partition 3 divides this pump body into two parts: a suction chamber 6 and a discharge chamber 4. This constitutes a volute in which a turbine 5 rotates and the two chambers are connected by a passage 7 through which passes the suction nozzle 8 of the turbine 5.

On notera que la chambre de refoulement 4 ne possède pas le profil dissymétrique qui participe, dans les volutes normales, au mouvement vers la sortie du courant de fluide centrifuge créé par la rotation de la turbine.It will be noted that the discharge chamber 4 does not have the asymmetrical profile which participates, in normal volutes, in the movement towards the outlet of the current of centrifugal fluid created by the rotation of the turbine.

Immédiatement en aval de ladite chambre de refoulement 4, se trouve une sortie 9 raccordée à une tuyauterie (non représentée) par laquelle le fluide sous pression sera distribué.Immediately downstream of said delivery chamber 4, there is an outlet 9 connected to a pipe (not shown) through which the pressurized fluid will be distributed.

Une pièce 10, en forme de couronne circulaire, comme il apparaît figure 4, porte, d'une part, une palette 11 qui se trouve disposée immédiatement en amont de la sortie 9 de la chambre de refoulement, et d'autre part, un axe 12, diamétralement opposé à la palette 11 par rapport à l'axe de la turbine 5, et traversant la cloison 3 pour déboucher dans la chambre d'aspiration 6.A part 10, in the form of a circular crown, as it appears in FIG. 4, carries, on the one hand, a pallet 11 which is placed immediately upstream of the outlet 9 of the delivery chamber, and on the other hand, a axis 12, diametrically opposite to the pallet 11 relative to the axis of the turbine 5, and passing through the partition 3 to open into the suction chamber 6.

L'extrémité de l'axe 12 porte un bras 13 dont il est solidaire par une vis 25 et ce bras porte, à son tour, un corps de clapet 14 à deux faces 15 et 16.The end of the axis 12 carries an arm 13 to which it is secured by a screw 25 and this arm carries, in turn, a valve body 14 with two faces 15 and 16.

La chambre d'aspiration 6 possède trois orifices : un orifice 17, fermé par un bouchon 18, qui permet l'accès à ladite chambre d'aspiration, et deux autres orifices situés face à face et disposés sur le même axe.The suction chamber 6 has three orifices: an orifice 17, closed by a plug 18, which allows access to said suction chamber, and two other orifices located face to face and arranged on the same axis.

L'un de ces orifices porte un embout 21 dont une extrémité 19 constitue une entrée de la pompe et dont l'autre extrémité débouche dans une tuyauterie (non représentée) reliée à une source d'eau.One of these orifices carries a nozzle 21, one end of which 19 constitutes an inlet to the pump and the other end of which opens into a pipe (not shown) connected to a source of water.

L'autre orifice porte un embout 22 dont une extrémité 20 constitue la deuxième entrée de la pompe et dont l'autre extrémité débouche dans une tuyauterie (non représentée) reliée à une autre source d'eau.The other orifice carries a nozzle 22, one end of which constitutes the second inlet of the pump and the other end of which opens into a pipe (not shown) connected to another source of water.

Le moteur 1 possède une commande, non représentée, à deux positions de marche, l'une assurant la rotation de la turbine dans le sens de la flèche en trait plein 23 de la figure 4, et l'autre dans le sens de la flèche en trait pointillé 24 de la même figure.The motor 1 has a control, not shown, with two operating positions, one ensuring the rotation of the turbine in the direction of the arrow in solid line 23 in FIG. 4, and the other in the direction of the arrow in dotted lines 24 of the same figure.

La turbine illustrée par la figure 6 est différente de celle apparaissant sur la figure 4 notamment par le fait qu'elle est équipée d'aubes de différentes longueurs.The turbine illustrated in FIG. 6 is different from that appearing in FIG. 4 in particular in that it is equipped with blades of different lengths.

A mi-chemin entre deux grandes aubes 42 allant de l'aspiration centrale à la périphérie de la turbine, on a disposé une aube 43 dont la longueur est sensiblement la moitié d'une grande aube et, à mi-chemin entre les grandes aubes 42 et les aubes de demi-longueur 43, on dispose des aubes 44 dont la longueur est sensiblement la moitié des aubes de demi-longueur 43.Halfway between two large blades 42 going from the central suction to the periphery of the turbine, a blade 43 has been placed, the length of which is substantially half of a large blade and, halfway between the large blades 42 and the half-length blades 43, the blades 44 are available, the length of which is substantially half of the half-length blades 43.

Cette disposition, de même que la section effilée de l'extrémité périphérique de chacune des aubes, permet d'augmenter le rendement de la pompe en favorisant l'écoulement régulier du flux liquide. Dans ces conditions, le fonctionnement s'établit comme décrit ci-après.This arrangement, as well as the tapered section of the peripheral end of each of the blades, makes it possible to increase the efficiency of the pump by promoting the regular flow of the liquid flow. Under these conditions, the operation is established as described below.

On admettra qu'avant la mise sous tension du moteur, la pompe est remplie et que la position de la pièce circulaire 10 portant la palette 11 et l'axe 12, est quelconque, et par conséquent que la position du bras 13 portant le corps de clapet 14 est indifférente si la pompe est installée dans la position représentée dans les figures 1 à 5.It will be assumed that before the motor is switched on, the pump is filled and that the position of the circular part 10 carrying the pallet 11 and the axis 12 is arbitrary, and therefore that the position of the arm 13 carrying the body valve 14 is indifferent if the pump is installed in the position shown in Figures 1 to 5.

Si l'on met le moteur sous tension avec la commande assurant la mise en rotation de la turbine dans le sens de la flèche 23, il se crée dans la chambre de refoulement 4, un courant de fluide centrifuge de même sens qui exerce sur la palette 11 une pression dont le résultat est de placer la pièce 10 dans la position illustrée figure 4.If the motor is switched on with the control ensuring the rotation of the turbine in the direction of arrow 23, a current of centrifugal fluid of the same direction is created in the discharge chamber 4 which exerts on the pallet 11 pressing, the result of which is to place the part 10 in the position illustrated in FIG. 4.

Dans cette position, la palette 11, modifie la géométrie intérieure de la chambre de refoulement et participe ainsi au guidage vers la sortie du courant centrifuge créé par la turbine.In this position, the pallet 11 modifies the internal geometry of the delivery chamber and thus participates in guiding towards the outlet of the centrifugal current created by the turbine.

Par ailleurs, le déplacement angulaire de la pièce circulaire 10 provoqué par la pression du courant centrifuge sur la palette 11, a provoqué à son tour, grâce à l'axe 12, au bras 13 et à la vis 25 qui les rend solidaires, le déplacement angulaire du corps de clapet 14 qui a pris la position illustrée figure 5.Furthermore, the angular displacement of the circular part 10 caused by the pressure of the centrifugal current on the pallet 11, in turn caused, thanks to the axis 12, to the arm 13 and to the screw 25 which makes them integral, the angular displacement of the valve body 14 which has taken the position illustrated in FIG. 5.

Dans cette position, la face 16 du corps de clapet 14 est venue s'appuyer sur l'extrémité 20 de l'embout 22 réalisant ainsi la fermeture de l'entrée constituée par ledit embout 22 : la pompe est donc alimentée exclusivement à travers l'embout 21.In this position, the face 16 of the valve body 14 has come to bear on the end 20 of the end piece 22 thus closing the inlet formed by said end piece 22: the pump is therefore supplied exclusively through the '' tip 21.

Compte tenu de ce que les embouts 21 et 22, ainsi que le corps de clapet 14 sont situés sensiblement au même niveau que le nez d'aspiration 8 de la turbine 5, tandis que la palette 11 sur laquelle s'effectue la pression de l'anneau liquide est diamétralement opposée à l'axe 12 par rapport à l'axe de la turbine 5, c'est avec un bras de levier multiplicateur que l'action de la palette 11 s'effectue sur le corps de clapet 14 et ce bras de levier permet la fermeture de l'embout 22 à l'encontre de la pression existant en amont de celui-ci.Given that the end pieces 21 and 22, as well as the valve body 14 are located substantially at the same level as the suction nose 8 of the turbine 5, while the vane 11 on which the pressure of the liquid ring is diametrically opposite the axis 12 with respect to the axis of the turbine 5, it is with a multiplier lever arm that the action of the pallet 11 takes place on the valve body 14 and this lever arm allows the closure of the nozzle 22 against the pressure existing upstream thereof.

Lorsque l'on veut alimenter la pompe par l'autre entrée, il suffit de faire tourner le moteur de pompe en sens contraire pour assurer la rotation de la turbine dans le sens de la flèche 24.When you want to supply the pump from the other input, simply rotate the pump motor in the opposite direction opposite to ensure the rotation of the turbine in the direction of arrow 24.

Le courant centrifuge alors créé dans la chambre de refoulement 4 s'établit dans le même sens et exerce, sur la palette 11, une pression qui va provoquer le déplacement angulaire de la pièce circulaire 10 jusqu 'à ce que la dite palette 11 vienne se positionner de l'autre côté de la sortie 9, dans une position symétrique à celle illustrée figure 3.The centrifugal current then created in the discharge chamber 4 is established in the same direction and exerts, on the pallet 11, a pressure which will cause the angular displacement of the circular part 10 until said pallet 11 comes position on the other side of the outlet 9, in a position symmetrical to that illustrated in Figure 3.

Par ailleurs, comme précédemment, ce déplacement angulaire de la pièce circulaire 10, a provoqué celui du corps de clapet 14 qui a pris également une position symétrique à celle qu'il avait sur la figure 5 : c'est la face 15 qui est venue s'appuyer sur l'extrémité 19 de l'embout 21 réalisant ainsi le dispositif de fermeture de l'entrée constituée par ledit embout 21.Furthermore, as before, this angular displacement of the circular part 10, caused that of the valve body 14 which also took a position symmetrical to that which it had in FIG. 5: it is the face 15 which came lean on the end 19 of the end piece 21 thus producing the device for closing the inlet formed by said end piece 21.

On voit ainsi que la palette 11 a plusieurs fonctions différentes : elle détecte le sens de rotation de la turbine par l'intermédiaire de l'anneau liquide créé, elle transmet l'information au corps de clapet 14 par l'intermédiaire de la pièce circulaire 10 et de l'axe 12, et elle participe au bon écoulement de l'anneau liquide vers la sortie 9.It can thus be seen that the vane 11 has several different functions: it detects the direction of rotation of the turbine via the liquid ring created, it transmits the information to the valve body 14 via the circular part 10 and the axis 12, and it participates in the good flow of the liquid ring towards the outlet 9.

La pompe illustrée aux figures 7 et 8 comprend un corps fermé 26, la séparation entre la chambre d'aspiration 27 et la chambre de refoulement 28 étant obtenue par une cloison amovible 29 comportant un orifice central 30 qui relie les deux chambres et dans lequel se situe le nez d'aspiration de la turbine non représentée.The pump illustrated in FIGS. 7 and 8 comprises a closed body 26, the separation between the suction chamber 27 and the discharge chamber 28 being obtained by a removable partition 29 comprising a central orifice 30 which connects the two chambers and in which is located locates the suction nozzle of the turbine not shown.

Comme dans le cas des figures 1 à 5, une palette 31 est portée par un bras circulaire 32 possédant un axe 33 tourillonnant dans un bossage 34 de la cloison amovible 29.As in the case of FIGS. 1 to 5, a pallet 31 is carried by a circular arm 32 having an axis 33 journalled in a boss 34 of the removable partition 29.

Un bras 35 portant un clapet 36 à deux faces 37 et 38 est solidaire de l'axe 33.An arm 35 carrying a valve 36 with two faces 37 and 38 is integral with the axis 33.

Le clapet 36, en matériau élastique, est articulé sur une rotule 39 à l'extrémité du bras 35 grâce à un logement 45 lui donnant une liberté angulaire suffisante par rapport au bras 35 pour venir obturer l'un ou l'autre des deux embouts 40 et 41 constituant les deux entrées de la pompe.The valve 36, made of elastic material, is articulated on a ball joint 39 at the end of the arm 35 by virtue of a housing 45 giving it sufficient angular freedom relative to the arm 35 to close one or the other of the two end pieces. 40 and 41 constituting the two inputs of the pump.

Le fonctionnement de cette pompe est le même que celui de la pompe précédemment décrite.The operation of this pump is the same as that of the pump previously described.

Un premier avantage des réalisations décrites est que l'ensemble de la fonction vanne à plusieurs voies ne cécessite aucun système d'étanchéité du fluide par rapport à l'extérieur, aucune pièce en mouvement n'étant en contact avec celui-ci.A first advantage of the embodiments described is that the entire multi-way valve function does not require any system for sealing the fluid with respect to the outside, no moving part being in contact with the latter.

Un deuxième avantage est l'amélioration sensible du rendement de la pompe obtenu par la transformation d'une chambre de refoulement symétrique en une chambre asymétrique assurant le bon écoulement du courant centrifuge de fluide, quel que soit le sens de rotation de la turbine.A second advantage is the significant improvement in the efficiency of the pump obtained by the transformation of a symmetrical delivery chamber into an asymmetrical chamber ensuring the good flow of the centrifugal fluid current, whatever the direction of rotation of the turbine.

Un troisième avantage est le fait de permettre d'assurer, à volonté, soit l'étanchéité entre deux circuits, soit au contraire leur jonction automatique dans certaines conditions. Il suffit, pour cela, de jouer sur les dimensions, la forme ou autres de la palette, ou sur les sections des entrées de manière à faire varier la pression antagoniste à la pression de fermeture.A third advantage is the fact of ensuring, at will, either the sealing between two circuits, or on the contrary their automatic junction under certain conditions. For this, it suffices to play on the dimensions, the shape or the like of the pallet, or on the sections of the entries so as to vary the opposing pressure to the closing pressure.

Un dernier avantage, mais non le moindre, est la fonction antithermosiphon que peuvent assurer également les réalisations décrites. Pour cela, il suffit de placer la pompe non plus dans la position illustrée par les dessins, mais dans une position telle que l'axe commun aux embouts 21 et 22, et donc aux entrées 16 et 19, ou aux embouts 40 et 41, se trouve à la verticale, ce qui est possible si les trous de fixation de la pompe sont symétriques par rapport à un axe. Dans une telle position, lorsque la pompe est arrêtée, le corps de clapet vient, par son propre poids, obturer l'entrée qui se trouve placée à la partie inférieure.A last advantage, but not the least, is the antithermosiphon function which the embodiments described can also provide. For this, it suffices to place the pump no longer in the position illustrated by the drawings, but in a position such that the axis common to the nozzles 21 and 22, and therefore to the inputs 16 and 19, or to the nozzles 40 and 41, is vertical, which is possible if the pump mounting holes are symmetrical about an axis. In such a position, when the pump is stopped, the valve body comes, by its own weight, to close the inlet which is placed at the bottom.

Ainsi, dans le cas d'un chauffage avec chaudière à production d'eau chaude sanitaire intégrée et quand la chaudière est en position "été", c'est-à-dire que le chauffage est arrêté, on peut, après arrêt de la pompe, garder le circuit chauffage fermé et empêcher ainsi l'eau chaude du circuit chauffage de la chaudière d'aller dans le circuit chauffage de l'installation. Pour cela, il suffit que le circuit qui assure la production d'eau chaude sanitaire passe par l'entrée située à la partie supérieure.Thus, in the case of heating with a boiler with integrated domestic hot water production and when the boiler is in the "summer" position, that is to say that the heating is stopped, it is possible, after stopping the pump, keep the heating circuit closed and thus prevent hot water from the heating circuit of the boiler from going into the heating circuit of the installation. For this, it is sufficient that the circuit which ensures the production of domestic hot water passes through the inlet located at the top.

Il est entendu que l'on peut, sans sortir de l'invention, modifier des détails de construction ou de fonctionnement en vue d'obtenir les mêmes résultats.It is understood that one can, without departing from the invention, modify construction or operating details in order to obtain the same results.

Il serait possible, par exemple, de commander les clapets par un système électro-magnétique qui assurerait leur mise en place pour fermer l'une ou l'autre des entrées en fonction d'informations transmises par les palettes 11 ou 31.It would be possible, for example, to control the valves by an electromagnetic system which would ensure their placement in order to close one or the other of the inputs as a function of information transmitted by the pallets 11 or 31.

La pompe décrite comporte deux entrées disposées face à face. Il est bien évident qu'elle pourrait en compter davantage et qui seraient disposées autrement, par exemple, décalées suivant les besoins.The described pump has two inlets placed face to face. It is obvious that it could count more and that would be otherwise arranged, for example, shifted as necessary.

Bien que l'exemple décrit concerne un appareil de circulation et de distribution d'un liquide, l'invention s'applique également aux appareils de circulation et de distribution des fluides gazeux.Although the example described relates to an apparatus for circulation and distribution of a liquid, the invention also applies to apparatus for circulation and distribution of gaseous fluids.

Claims (11)

1. Appareil de circulation de fluide à deux entrées et une sortie, avec une cloison définissant une chambre d'aspiration dans laquelle se trouvent les deux entrées ainsi que leurs dispositifs de fermeture, et une chambre de refoulement constituant une volute dans laquelle tourne une turbine à double sens de rotation, caractérisé en ce qu'il comporte, dans la chambre de refoulement (4 ; 28), des moyens mobiles (10, 11 ; 32, 31) susceptibles d'assurer, en fonction du courant de fluide, la commande des dispositifs de fermeture (15, 16 ; 37, 38) des deux entrées (19, 20 ; 40, 41).1. Fluid circulation device with two inlets and one outlet, with a partition defining a suction chamber in which the two inlets are located as well as their closing devices, and a discharge chamber constituting a volute in which a turbine turns with two directions of rotation, characterized in that it comprises, in the discharge chamber (4; 28), mobile means (10, 11; 32, 31) capable of ensuring, depending on the flow of fluid, the control of the closing devices (15, 16; 37, 38) of the two inputs (19, 20; 40, 41). 2. Appareil de circulation suivant la revendication 1, caractérisé en ce que les moyens mobiles disposés dans la chambre de refoulement sont constitués par une palette (11 ; 31) pouvant osciller autour d'un axe (12 ; 33) diamétralement opposé à ladite palette par rapport à l'axe de la turbine et parallèle à celui-ci, et que les dispositifs de fermeture (15, 16 ; 37, 38) des deux entrées (19, 20 ; 40, 41) sont solidaires de ladite palette et oscillent autour du même axe (12 ; 33).2. Circulation apparatus according to claim 1, characterized in that the mobile means arranged in the delivery chamber consist of a pallet (11; 31) which can oscillate around an axis (12; 33) diametrically opposite to said pallet relative to the axis of the turbine and parallel to it, and that the closing devices (15, 16; 37, 38) of the two inlets (19, 20; 40, 41) are integral with said pallet and oscillate around the same axis (12; 33). 3. Appareil suivant la revendication 2, caractérisé en ce que la palette oscillante (11 ; 31) est portée par un bras circulaire (10 ; 32).3. Apparatus according to claim 2, characterized in that the oscillating pallet (11; 31) is carried by a circular arm (10; 32). 4. Appareil suivant l'une des revendications 2 ou 3, dans lequel la turbine comporte une aspiration axiale (8), caractérisé en ce que les deux entrées (19, 20 ; 40, 41) sont situées sensiblement au niveau de cette aspiration de la turbine.4. Apparatus according to one of claims 2 or 3, wherein the turbine has an axial suction (8), characterized in that the two inlets (19, 20; 40, 41) are located substantially at the level of this suction of the turbine. 5. Appareil suivant l'une des revendications précédentes et comportant une chambre de refoulement symétrique, caractérisé en ce que, dans ses positions extrêmes, la palette (11 ; 31) reconstitue la géométrie asymétrique normale d'une volute, pour favoriser l'écoulement du fluide suivant le sens de rotation de la turbine.5. Apparatus according to one of the preceding claims and comprising a symmetrical delivery chamber, characterized in that, in its extreme positions, the pallet (11; 31) reconstructs the normal asymmetrical geometry of a scroll, to promote flow fluid in the direction of rotation of the turbine. 6. Appareil suivant l'une des revendications précédentes, comportant une turbine à aubes radiales, caractérisé par une alternance d'aubes (42) s'étendant de la périphérie jusqu'au nez (8) de la turbine, et d'aubes (43), partant également de la périphérie de la turbine, mais d'une longueur sensiblement égale à la moitié des précédentes aubes (42).6. Apparatus according to one of the preceding claims, comprising a turbine with radial blades, characterized by alternating blades (42) extending from the periphery up to the nose (8) of the turbine, and blades (43), also starting from the periphery of the turbine, but of a length substantially equal to half of the previous blades (42). 7. Appareil suivant la revendication 6 caractérisé en ce que, entre les aubes (42) s'étendant de la périphérie jusqu' au nez de la turbine et les aubes de demi-longueur (43), sont disposées des aubes (44), partant également de la périphérie mais d'une longueur sensiblement égale à la moitié des aubes de demi-longueur (43).7. Apparatus according to claim 6 characterized in that, between the blades (42) extending from the periphery to the nose of the turbine and the half-length blades (43), are arranged blades (44), also starting from the periphery but of a length substantially equal to half of the half-length vanes (43). 8. Appareil suivant l'une des revendications 6 ou 7, caractérisé en ce que les aubes (42, 43 et 44) de la turbine se terminent par une section effilée à la périphérie de ladite turbine.8. Apparatus according to one of claims 6 or 7, characterized in that the blades (42, 43 and 44) of the turbine end in a tapered section at the periphery of said turbine. 9. Pompe suivant l'une des revendications 1 à 8 caractérisée en ce qu'elle comporte une pièce (10 ; 32) pouvant osciller sous l'action de l'anneau liquide créé par la turbine et portant, d'une part, une palette (11 ; 31) disposée immédiatement en amont de la sortie de la chambre de refoulement et, d'autre part, un axe (12 ; 33) dont est solidaire un corps de clapet (14 ; 36) à deux faces, une face (15 ; 37) venant fermer une entrée (19, 40) de la pompe lorsque la pièce oscillante est dans une position extrême, et l'autre face (16, 38) venant fermer l'autre entrée (20, 41) lorsque la pièce oscillante est dans l'autre position extrême.9. Pump according to one of claims 1 to 8 characterized in that it comprises a part (10; 32) which can oscillate under the action of the liquid ring created by the turbine and carrying, on the one hand, a pallet (11; 31) disposed immediately upstream from the outlet of the delivery chamber and, on the other hand, an axis (12; 33) with which a valve body (14; 36) is integral with two faces, one face (15; 37) closing an inlet (19, 40) of the pump when the oscillating part is in an extreme position, and the other face (16, 38) closing the other inlet (20, 41) when the oscillating part is in the other extreme position. 10. Pompe suivant la revendication 9 caractérisée en ce que le corps de clapet (36) est porté par un bras (35) se terminant par une rotule (39) qui s'engage dans un logement (45) dudit corps de clapet et sur laquelle celui-ci est maintenu élastiquement avec une certaine liberté angulaire.10. Pump according to claim 9 characterized in that the valve body (36) is carried by an arm (35) ending in a ball joint (39) which engages in a housing (45) of said valve body and on which it is held elastically with a certain angular freedom. 11. Pompe suivant la revendication 10 caractérisée en ce qu'elle est munie de moyens de fixation permettant de la disposer de telle manière que l'axe commun aux deux entrées (19, 20 ; 40, 41) soit vertical.11. Pump according to claim 10 characterized in that it is provided with fixing means making it possible to arrange it in such a way that the axis common to the two inlets (19, 20; 40, 41) is vertical.
EP90401077A 1989-04-21 1990-04-20 Fluid circulation and distribution apparatus Expired - Lifetime EP0394140B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8905342A FR2646212B1 (en) 1989-04-21 1989-04-21 FLUID CIRCULATION AND DISPENSING APPARATUS
FR8905342 1989-04-21

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EP0394140A1 true EP0394140A1 (en) 1990-10-24
EP0394140B1 EP0394140B1 (en) 1993-11-18

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DE (1) DE69004616T2 (en)
DK (1) DK0394140T3 (en)
ES (1) ES2047278T3 (en)
FR (1) FR2646212B1 (en)

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DE4127822A1 (en) * 1991-08-23 1993-02-25 Grundfos Int Gas boiler for central heating and water heating
EP0529353A1 (en) * 1991-08-23 1993-03-03 Grundfos A/S Gasboiler
DE4232938A1 (en) * 1992-10-01 1994-04-07 Massindustrie Gmbh Dishwasher circulation pump driven by sync. motor in either direction - has elliptical pump chamber and axial inlet and twin outlets tangential to chamber walls in major axis direction
EP0918197A3 (en) * 1997-11-21 2001-05-16 Grundfos A/S Assembly for a compact heating installation
EP1375917A2 (en) * 2002-06-24 2004-01-02 Laurent Maxima Roland Jacquot Electric pump
EP1580489A1 (en) * 2004-03-22 2005-09-28 Grundfos A/S Unit for a compact heating installation
DE102008061177A1 (en) 2008-12-09 2010-06-24 Siemens Aktiengesellschaft Method for confirmation about progress of problem to be solved in computer system, involves representing number/time requirement of completed and uncompleted steps as bar portions, respectively, such that bar portions complement each other
EP3156662A1 (en) * 2015-10-12 2017-04-19 Grundfos Holding A/S Pump unit and hydraulic system
EP3156659A1 (en) * 2015-10-12 2017-04-19 Grundfos Holding A/S Pump unit and hydraulic system
EP3376037A1 (en) * 2017-03-14 2018-09-19 Grundfos Holding A/S Centrifugal pump assembly
CN110998191A (en) * 2017-08-03 2020-04-10 格兰富控股联合股份公司 Circulating pump unit
EP3376039B1 (en) * 2017-03-14 2021-08-04 Grundfos Holding A/S Centrifugal pump assembly

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FR3052199A1 (en) * 2016-06-02 2017-12-08 Wilo Intec THREE-WAY CIRCULATION PUMP WITH CONTROLLED OBSTRUCTION

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Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4127822A1 (en) * 1991-08-23 1993-02-25 Grundfos Int Gas boiler for central heating and water heating
EP0529353A1 (en) * 1991-08-23 1993-03-03 Grundfos A/S Gasboiler
US5248085A (en) * 1991-08-23 1993-09-28 Grundfos A/S Gas boiler
DE4143492C2 (en) * 1991-08-23 1995-08-03 Grundfos As Pump unit
DE4232938A1 (en) * 1992-10-01 1994-04-07 Massindustrie Gmbh Dishwasher circulation pump driven by sync. motor in either direction - has elliptical pump chamber and axial inlet and twin outlets tangential to chamber walls in major axis direction
EP0918197A3 (en) * 1997-11-21 2001-05-16 Grundfos A/S Assembly for a compact heating installation
EP1375917A2 (en) * 2002-06-24 2004-01-02 Laurent Maxima Roland Jacquot Electric pump
EP1375917A3 (en) * 2002-06-24 2005-02-09 Laurent Maxima Roland Jacquot Electric pump
EP1580489A1 (en) * 2004-03-22 2005-09-28 Grundfos A/S Unit for a compact heating installation
DE102008061177A1 (en) 2008-12-09 2010-06-24 Siemens Aktiengesellschaft Method for confirmation about progress of problem to be solved in computer system, involves representing number/time requirement of completed and uncompleted steps as bar portions, respectively, such that bar portions complement each other
WO2017063970A1 (en) * 2015-10-12 2017-04-20 Grundfos Holding A/S Pump assembly and hydraulic system
US20180291908A1 (en) * 2015-10-12 2018-10-11 Grundfos Holding A/S Pump assembly and hydraulic system
EP3156662A1 (en) * 2015-10-12 2017-04-19 Grundfos Holding A/S Pump unit and hydraulic system
WO2017063969A1 (en) * 2015-10-12 2017-04-20 Grundfos Holding A/S Pump unit and hydraulic system
CN108138799A (en) * 2015-10-12 2018-06-08 格兰富控股联合股份公司 Pump assembly and hydraulic system
CN108138800A (en) * 2015-10-12 2018-06-08 格兰富控股联合股份公司 Pump assembly and hydraulic system
US10823175B2 (en) 2015-10-12 2020-11-03 Grundfos Holding A/S Pump assembly and hydraulic system
EP3156659A1 (en) * 2015-10-12 2017-04-19 Grundfos Holding A/S Pump unit and hydraulic system
WO2018167031A1 (en) * 2017-03-14 2018-09-20 Grundfos Holding A/S Centrifugal pump aggregate
CN110418893A (en) * 2017-03-14 2019-11-05 格兰富控股联合股份公司 Centrifugal pump group
EP3376037A1 (en) * 2017-03-14 2018-09-19 Grundfos Holding A/S Centrifugal pump assembly
US11073161B2 (en) 2017-03-14 2021-07-27 Grundfos Holding A/S Centrifugal pump assembly
EP3376039B1 (en) * 2017-03-14 2021-08-04 Grundfos Holding A/S Centrifugal pump assembly
CN110418893B (en) * 2017-03-14 2021-10-22 格兰富控股联合股份公司 Centrifugal pump assembly
CN110998191A (en) * 2017-08-03 2020-04-10 格兰富控股联合股份公司 Circulating pump unit

Also Published As

Publication number Publication date
EP0394140B1 (en) 1993-11-18
DK0394140T3 (en) 1994-03-21
FR2646212A1 (en) 1990-10-26
ES2047278T3 (en) 1994-02-16
FR2646212B1 (en) 1994-04-15
DE69004616D1 (en) 1993-12-23
DE69004616T2 (en) 1994-05-26

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