EP0394140B1 - Fluid circulation and distribution apparatus - Google Patents
Fluid circulation and distribution apparatus Download PDFInfo
- Publication number
- EP0394140B1 EP0394140B1 EP90401077A EP90401077A EP0394140B1 EP 0394140 B1 EP0394140 B1 EP 0394140B1 EP 90401077 A EP90401077 A EP 90401077A EP 90401077 A EP90401077 A EP 90401077A EP 0394140 B1 EP0394140 B1 EP 0394140B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump according
- vanes
- movable wheel
- pump
- inlets
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000012530 fluid Substances 0.000 title claims description 15
- 239000007788 liquid Substances 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- 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 pump, and more particularly to 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 input and two outputs, each of which is supplied as a function of the direction of rotation of the moving wheel; as shown in document DE-A-3023898.
- Document CH-A-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. and 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 pump 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.
- Its object is a fluid circulation pump 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 movable wheel with two directions of rotation, characterized in that it comprises, in the delivery chamber, movable means capable of ensuring, as a function of the fluid current, 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 pump comprises a symmetrical volute, the movable vane reconstituting, in its extreme positions, an asymmetrical geometry of the volute, so as to promote the flow of the fluid in the direction of rotation of the moving wheel.
- the invention also provides for improving the efficiency of the moving wheel 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 wheel. mobile.
- 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 V-V in FIG. 3.
- Figure 6 is a partial sectional view of a movable impeller which can be fitted to a pump according to the invention.
- Figure 7 is an axial vertical section of an alternative embodiment, movable wheel removed.
- Figure 8 is a section along VIII-VIII of Figure 7.
- the pump illustrated in Figures 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 scroll in which a moving wheel 5 rotates and the two chambers are connected by a passage 7 through which passes the suction nose 8 of the movable wheel 5.
- the delivery chamber 4 does not have the asymmetrical profile which participates, in normal scrolls, in the movement towards the outlet of the current of centrifugal fluid created by the rotation of the moving wheel.
- 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 discharge chamber, and on the other hand, a axis 12, diametrically opposite to the pallet 11 relative to the axis of the movable wheel 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 movable wheel in the direction of the arrow in solid line 23 in FIG. 4, and the other in the direction of the arrow in dotted line 24 of the same figure.
- the movable wheel 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 moving wheel.
- 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 to position on the other side of the outlet 9, in a position symmetrical to that illustrated in Figure 3.
- the pallet 11 has several different functions: it detects the direction of rotation of the mobile wheel via the liquid ring created, it transmits the information to the valve body 14 via the part circular 10 and 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 nose of the mobile wheel 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 appreciable 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 moving wheel.
- 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 a pump for circulation and distribution of a liquid
- the invention also applies to pumps for circulation and distribution of gaseous fluids.
Landscapes
- 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)
Description
La présente invention concerne une pompe de circulation et de distribution de fluide, et plus particulièrement une pompe à trois voies.The present invention relates to a fluid circulation and distribution pump, and more particularly to 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 roue mobile; comme représenté dans le document DE-A-3023898.In particular, pumps are known which have an input and two outputs, each of which is supplied as a function of the direction of rotation of the moving wheel; as shown in document DE-A-3023898.
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 document CH-A- 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.Document CH-A-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. and 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 une pompe 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 pump 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 object une pompe 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 roue mobile à double sens de rotation, caractérisée en ce qu'elle 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.Its object is a fluid circulation pump 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 movable wheel with two directions of rotation, characterized in that it comprises, in the delivery chamber, movable means capable of ensuring, as a function of the fluid current, 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, la pompe 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 roue mobile.In a particularly advantageous alternative embodiment of the invention, the pump comprises a symmetrical volute, the movable vane reconstituting, in its extreme positions, an asymmetrical geometry of the volute, so as to promote the flow of the fluid in the direction of rotation of the moving wheel.
Appliquée à une pompe, l'invention prévoit également d'améliorer le rendement de la roue mobile en l'équipant d'aubes radiales de diverses longueurs, l'alternance de tells aubes de différentes longueurs assurant un meilleur écoulement du liquide à travers la roue mobile.Applied to a pump, the invention also provides for improving the efficiency of the moving wheel 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 wheel. mobile.
D'autres caractéristiques et avantages de l'invention apparaîtront au cours de la description qui va suivre en se référant aux dessins joints illustrant deux exemples, donnés à titre purement indicatif et nullement limitatif, de réalisation de la présente invention.Other characteristics and advantages of the invention will emerge during the description which follows, with reference to the accompanying drawings illustrating two examples, given purely by way of non-limiting example, of embodiment of the present invention.
La figure 1 est une vue latérale en élévation d'une pompe selon l'invention.Figure 1 is a side elevational view of a pump according to the invention.
La figure 2 est une vue suivant II-II de la figure 1.Figure 2 is a view along II-II of Figure 1.
La figure 3 est une vue suivant III-III de la figure 2 mais à plus grande échelle.Figure 3 is a view along III-III of Figure 2 but on a larger scale.
La figure 4 est une coupe suivant IV-IV de la figure 3Figure 4 is a section on IV-IV of Figure 3
La figure 5 est une coupe suivant V-V de la figure 3.FIG. 5 is a section along V-V in FIG. 3.
La figure 6 est une vue avec coupe partielle d'une roue mobile pouvant équiper une pompe suivant l'invention.Figure 6 is a partial sectional view of a movable impeller which can be fitted to a pump according to the invention.
La figure 7 est une coupe verticale axiale d'une variante de réalisation, roue mobile enlevée.Figure 7 is an axial vertical section of an alternative embodiment, movable wheel removed.
La figure 8 est une coupe suivant VIII-VIII de la figure 7.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 Figures 1 to 5 consists of a motor 1 and a
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 roue mobile 5 et les deux chambres sont reliées par un passage 7 à travers lequel passe le nez d'aspiration 8 de la roue mobile 5.A
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 roue mobile.It will be noted that the
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
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 roue mobile 5, et traversant la cloison 3 pour déboucher dans la chambre d'aspiration 6.A
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
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
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
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
Le moteur 1 possède une commande, non représentée, à deux positions de marche, l'une assurant la rotation de la roue mobile 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 movable wheel in the direction of the arrow in
La roue mobile 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 movable wheel 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
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
Si l'on met le moteur sous tension avec la commande assurant la mise en rotation de la roue mobile 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 movable wheel in the direction of
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 roue mobile.In this position, the
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
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
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 roue mobile 5, tandis que la palette 11 sur laquelle s'effectue la pression de l'anneau liquide est diamétralement opposés à l'axe 12 par rapport à l'axe de la roue mobile 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
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 roue mobile 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 movable wheel in the direction of
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 ladite 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
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
On voit ainsi que la palette 11 a plusieurs fonctions différentes : elle détecte le sens de rotation de la roue mobile 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
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 roue mobile non représentée.The pump illustrated in FIGS. 7 and 8 comprises a closed
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
Un bras 35 portant un clapet 36 à deux faces 37 et 38 est solidaire de l'axe 33.An
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
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 roue mobile.A second advantage is the appreciable 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 moving wheel.
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 19 et 20, 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
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 boiler heating circuit 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
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 une pompe de circulation et de distribution d'un liquide, l'invention s'applique également aux pompes de circulation et de distribution des fluides gazeux.Although the example described relates to a pump for circulation and distribution of a liquid, the invention also applies to pumps for circulation and distribution of gaseous fluids.
Claims (11)
- Fluid circulation pump with two inlets (19,20; 40,41) and one outlet, with a partition (3; 29) defining an aspiration chamber (6; 27) in which are located the two inlets and their closure devices (15,16; 37,38), and a lift chamber (4; 28) constituting a volute in which turns a movable wheel rotatable in both direction, characterized in that it comprises, in the lift chamber (4; 28), movable means (10,11; 32,31) capable of ensuring control of the closure devices (15,16; 37,38) of the two inlets (19,20; 40,41) as a function of the flow of the fluid.
- Pump according to claim 1, characterized in that the movable means arranged in the lift chamber consist of a blade (11; 31) which can oscillate around an axis (12; 33) diametrically opposite the said blade in relation to the axis of the movable wheel and parallel to this, and that the closure devices (15,16; 37,38) of the two inlets (19,20; 40,41) are integral with the said blade and oscillate around the same axis (12; 33).
- Pump according to claim 2, characterized in that the oscillating blade (11; 31) is carried by a circular arm (10; 32).
- Pump according to one of claims 2 or 3, in which the turbine has axial aspiration (8), characterized in that the two inlets (19,20; 40,41) are located approximately at the level of this turbine aspiration.
- Pump according to any of the preceding claims comprising a symmetrical lift chamber, characterized in that in its extreme positions, the blade (11; 31) recreates the normal asymmetrical geometry of a helix to encourage the flow of the fluid according to the direction of rotation of the turbine.
- Pump according to any of the preceding claims comprising a movable wheel with radial vanes, characterized by alternating vanes (42) running from the periphery to the tip (8) of the movable wheel, and vanes (43) also running from the periphery of the movable wheel but of a length approximately equal to half that of the preceding vanes (42).
- Pump according to claim 6, characterized in that, between the vanes (42) running from the periphery to the tip of the movable wheel and the half-length vanes (43), vanes (44) are arranged which also run from the periphery but which are of a length approximately equal to half that of the half-length vanes (43).
- Pump according to one of claims 6 or 7, characterized in that the vanes (43, 43 and 44) of the movable wheel terminate in a tapered section at the periphery of the said movable wheel.
- Pump according to one of claims 1 to 8, characterized in that it comprises a section (10; 32) which can oscillate under the action of the liquid ring created by the movable wheel carrying firstly a blade (11; 31) arranged immediately before the outlet of the lift chamber, and secondly an axle (12; 33) with an integral flap body (14; 36) with two faces, one face of which (15; 37) closes an inlet (19; 40) of the pump when the oscillating section is in one extreme position, and the other face (16, 38) closes the other inlet (20, 41) when the oscillating section is in the other extreme position.
- Pump according to claim 9, characterized in that the flap body (36) is carried by an arm (35) terminating in a pivot (39) which engages in a seat (45) of the said flap body and on which the latter is held in a resilient manner with a certain angular play.
- Pump according to claim 10, characterized in that it is provided with fixing means allowing it to be arranged in such a way that the axle common to the two inlets (19, 20; 40, 41) is vertical.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8905342 | 1989-04-21 | ||
| FR8905342A FR2646212B1 (en) | 1989-04-21 | 1989-04-21 | FLUID CIRCULATION AND DISPENSING APPARATUS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0394140A1 EP0394140A1 (en) | 1990-10-24 |
| EP0394140B1 true EP0394140B1 (en) | 1993-11-18 |
Family
ID=9381002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90401077A Expired - Lifetime EP0394140B1 (en) | 1989-04-21 | 1990-04-20 | Fluid circulation and distribution apparatus |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0394140B1 (en) |
| DE (1) | DE69004616T2 (en) |
| DK (1) | DK0394140T3 (en) |
| ES (1) | ES2047278T3 (en) |
| FR (1) | FR2646212B1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4127822C2 (en) * | 1991-08-23 | 1995-08-10 | Grundfos Int | Device for space heating and water heating |
| 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 |
| DE19751515C2 (en) * | 1997-11-21 | 1999-12-02 | Grundfos A S Bjerringbro | Unit for a compact heating system |
| ES2199062B1 (en) * | 2002-06-24 | 2005-05-01 | Laurent M. R. Jacquot | ELECTRIC PUMP FOR THE IMPULSION OF LIQUIDS. |
| EP1580489B9 (en) * | 2004-03-22 | 2009-09-02 | 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 |
| EP3156662B1 (en) * | 2015-10-12 | 2019-06-05 | Grundfos Holding A/S | Pump unit and hydraulic system |
| EP3156659B1 (en) * | 2015-10-12 | 2020-09-16 | Grundfos Holding A/S | Pump unit and hydraulic system |
| FR3052199A1 (en) * | 2016-06-02 | 2017-12-08 | Wilo Intec | THREE-WAY CIRCULATION PUMP WITH CONTROLLED OBSTRUCTION |
| EP3376037B1 (en) * | 2017-03-14 | 2021-01-27 | Grundfos Holding A/S | Centrifugal pump assembly |
| EP3376039B1 (en) * | 2017-03-14 | 2021-08-04 | Grundfos Holding A/S | Centrifugal pump assembly |
| EP3438555A1 (en) * | 2017-08-03 | 2019-02-06 | Grundfos Holding A/S | Circulation pump generator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL84027C (en) * | 1900-01-01 | |||
| CH499018A (en) * | 1968-09-03 | 1970-11-15 | Troesch Hans A Dr Ing | Circulation pump for heating systems |
| JPS5848922Y2 (en) * | 1979-04-27 | 1983-11-08 | 久紀 割橋 | Pump unit for window washer |
| DE3023897C2 (en) * | 1980-06-26 | 1982-05-06 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | Windshield washer system of a vehicle |
| JPS62261693A (en) * | 1986-04-30 | 1987-11-13 | Maruko Keihouki Kk | Selective type delivery pump |
-
1989
- 1989-04-21 FR FR8905342A patent/FR2646212B1/en not_active Expired - Fee Related
-
1990
- 1990-04-20 DE DE69004616T patent/DE69004616T2/en not_active Expired - Fee Related
- 1990-04-20 DK DK90401077.4T patent/DK0394140T3/en active
- 1990-04-20 EP EP90401077A patent/EP0394140B1/en not_active Expired - Lifetime
- 1990-04-20 ES ES90401077T patent/ES2047278T3/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0394140A1 (en) | 1990-10-24 |
| DK0394140T3 (en) | 1994-03-21 |
| FR2646212B1 (en) | 1994-04-15 |
| DE69004616D1 (en) | 1993-12-23 |
| FR2646212A1 (en) | 1990-10-26 |
| ES2047278T3 (en) | 1994-02-16 |
| DE69004616T2 (en) | 1994-05-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0394140B1 (en) | Fluid circulation and distribution apparatus | |
| EP2174001B1 (en) | Hydraulic machine including means for injecting a flow drawn from a main flow | |
| EP1843008B1 (en) | Stator vane with variable setting of a turbomachine | |
| FR2674317A1 (en) | TURBOMACHINE COMBUSTION CHAMBER COMPRISING A FUEL FLOW ADJUSTMENT. | |
| FR2918103A1 (en) | DEVICE FOR COOLING ALVEOLES OF A TURBOMACHINE ROTOR DISK. | |
| FR2786223A1 (en) | COMBUSTION ENGINE, IN PARTICULAR COMBUSTION ENGINE FOR MOTOR VEHICLES, EQUIPPED WITH EXHAUST GAS RECYCLING | |
| FR2745604A1 (en) | FUEL TURBOCHARGER | |
| FR2638206A1 (en) | COOLING AIR SUPPLY DEVICE FOR ROTOR BLADES OF GAS TURBINES | |
| FR2471540A1 (en) | DOUBLE-EFFECT SHOCK ABSORBER FOR RETENTION VALVE | |
| EP1312863B1 (en) | Improvements to turbomachine injectors | |
| FR2838500A1 (en) | BY-PASS VALVE FOR A GAS COOLING DEVICE OF AN INTERNAL COMBUSTION ENGINE | |
| EP1500824B1 (en) | High pressure compressor for a hybrid cycle and turbomachine having the same | |
| FR2591661A1 (en) | DOSING VALVE, IN PARTICULAR FOR GAS TURBINE ENGINES | |
| FR2528918A1 (en) | SEALING DEVICE FOR A SHAFT IN A CENTRIFUGAL PUMP AND METHOD FOR THE USE OF THIS DEVICE | |
| EP0056669B1 (en) | Turbine with variable inlet section | |
| FR2594897A1 (en) | ROTARY PUMP FOR LIQUIDS | |
| EP0179078B1 (en) | Hydraulic turbine having a partially dry-running rotor and a injector | |
| WO2005038243A1 (en) | Tip-forming element for hydraulic machine wheel, method of assembling one such wheel, and wheel and hydraulic machine equipped with one such element | |
| BE501076A (en) | ||
| WO2017207951A1 (en) | Three-way circulation pump with controlled obstruction | |
| EP1473462B1 (en) | Cartridge compressor unit | |
| FR2485102A1 (en) | Distribution control vanes appts. for high head water turbine - uses pair of thin blades in place of single heavy vane for more precise control of water flow and better sealing | |
| FR2716699A1 (en) | Together to discharge fuel from a tank to an internal combustion engine. | |
| FR3087839A1 (en) | TURBINE | |
| FR2863004A1 (en) | Turbocharger turbine, especially for vehicle engine, has chamber divided by partition into compartments with first and second turbine rotors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE DK ES FR GB IT NL |
|
| 17P | Request for examination filed |
Effective date: 19910410 |
|
| 17Q | First examination report despatched |
Effective date: 19920819 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE DK ES FR GB IT NL |
|
| REF | Corresponds to: |
Ref document number: 69004616 Country of ref document: DE Date of ref document: 19931223 |
|
| ITF | It: translation for a ep patent filed |
Owner name: MODIANO & ASSOCIATI S.R.L. |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19940119 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2047278 Country of ref document: ES Kind code of ref document: T3 |
|
| REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: TP |
|
| NLS | Nl: assignments of ep-patents |
Owner name: WILO SALMSON COMPONENTS, S.A. |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: PC2A |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20000428 Year of fee payment: 11 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011101 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20011101 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20040709 Year of fee payment: 15 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20040723 Year of fee payment: 15 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DK Payment date: 20040726 Year of fee payment: 15 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050420 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050502 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20051101 |
|
| REG | Reference to a national code |
Ref country code: DK Ref legal event code: EBP |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20050420 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20090407 Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20090401 Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20090309 Year of fee payment: 20 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20100421 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20100421 |