FR2791904A1 - Filtration of water circuit includes use of self cleaning filter to remove suspended solids - Google Patents
Filtration of water circuit includes use of self cleaning filter to remove suspended solids Download PDFInfo
- Publication number
- FR2791904A1 FR2791904A1 FR9904613A FR9904613A FR2791904A1 FR 2791904 A1 FR2791904 A1 FR 2791904A1 FR 9904613 A FR9904613 A FR 9904613A FR 9904613 A FR9904613 A FR 9904613A FR 2791904 A1 FR2791904 A1 FR 2791904A1
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- FR
- France
- Prior art keywords
- fluid
- pot
- filter
- conduit
- opens
- Prior art date
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- Granted
Links
- 239000007787 solid Substances 0.000 title claims abstract description 12
- 238000004140 cleaning Methods 0.000 title claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title description 7
- 238000001914 filtration Methods 0.000 title description 5
- 239000002245 particle Substances 0.000 claims abstract description 14
- 239000012530 fluid Substances 0.000 claims description 39
- 238000010926 purge Methods 0.000 claims description 19
- 239000012535 impurity Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 239000011324 bead Substances 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 3
- 230000000284 resting effect Effects 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims 2
- 239000007924 injection Substances 0.000 claims 2
- 230000005484 gravity Effects 0.000 abstract description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract description 2
- 235000013980 iron oxide Nutrition 0.000 abstract description 2
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 abstract description 2
- 239000006249 magnetic particle Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 description 6
- 230000014759 maintenance of location Effects 0.000 description 4
- 238000005352 clarification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000013528 metallic particle Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 1
- 208000006558 Dental Calculus Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/06—Filters making use of electricity or magnetism
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/114—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/117—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
- B01D29/902—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding containing fixed liquid displacement elements or cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
- B01D29/908—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding provoking a tangential stream
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Filtration Of Liquid (AREA)
Abstract
Description
! La présente invention a pour objet un dispositif de rétention! The subject of the present invention is a retention device
d'impuretés contenues en suspension dans un fluide. Le dispositif dont il s'agit est susceptible de traiter des fluides, et notamment des liquides, par action conjuguée de la décantation, de la filtration sur une toile métallique, un tissu ou un maillage filtrant, avec éventuellement captation des particules aimantables par des éléments magnétiques. Les liquides qu'il s'agit de traiter sont, par exemple, les liquides contenant des particules en suspension, telles que des boues organiques, du sable, des particules solides de tartre, et des particules métalliques. Le champ d'application du dispositif selon l'invention comprend notamment la clarification de l'eau des circuits des tours de refroidissement, la clarification de l'eau des circuits de chauffage central, et la clarification de l'eau des circuits d'eau chaude sanitaire. Il existe des dispositifs permettant de clarifier les eaux de tels circuits. Ces dispositifs sont installés sur le bouclage des circuits, soit en dérivation partielle du circuit, soit en direct. Ces dispositifs peuvent donc traiter soit la totalité du débit de recirculation, soit uniquement une partie qui est alors généralement comprise entre 10 et 50 % du débit total. Le but des dispositifs connus est d'arrêter les impuretés solides et de les contenir, impurities contained in suspension in a fluid. The device in question is capable of treating fluids, and in particular liquids, by the combined action of decantation, of filtration on a metallic fabric, a fabric or a filtering mesh, with possibly capture of the magnetizable particles by elements. magnetic. The liquids to be treated are, for example, liquids containing suspended particles, such as organic sludge, sand, solid particles of tartar, and metallic particles. The field of application of the device according to the invention includes in particular the clarification of the water in the cooling tower circuits, the clarification of the water in the central heating circuits, and the clarification of the water in the water circuits domestic hot water. There are devices for clarifying the waters of such circuits. These devices are installed on the circuit loop, either in partial bypass of the circuit, or directly. These devices can therefore treat either the entire recirculation flow, or only a part which is then generally between 10 and 50% of the total flow. The aim of the known devices is to stop solid impurities and to contain them,
afin de pouvoir les éliminer de façon intermittente. so that they can be removed intermittently.
Généralement, la filtration est réalisée à l'aide d'un filtre en forme de panier, avec rétention des impuretés du côté du panier opposé à la purge. Dans la mesure o le panier est logé à l'intérieur d'un pot, il convient d'effectuer une opération manuelle consistant, après arrêt de I'installation et purge du pot, à ouvrir le pot, à sortir le panier et à nettoyer le média filtrant. Cette opération est effectuée manuellement et peut Generally, filtration is carried out using a basket-shaped filter, with retention of impurities on the side of the basket opposite to the purge. Insofar as the basket is housed inside a pot, it is necessary to carry out a manual operation consisting, after stopping the installation and purging the pot, to open the pot, to take out the basket and to clean filter media. This is done manually and can
difficilement être automatisée.hardly be automated.
Le but de l'invention est de fournir un dispositif de rétention d'impuretés contenues en suspension dans un fluide, qui possède une structure simple, qui dispose d'une efficacité importante, et qui évite les The object of the invention is to provide a device for retaining impurities contained in suspension in a fluid, which has a simple structure, which has a high efficiency, and which avoids
interventions manuelles pour la réalisation de la récupération des impuretés. manual interventions to achieve the recovery of impurities.
A cet effet, le dispositif qu'elle concerne, du type comportant un pot constitué par un corps creux dont la face supérieure est fermée par un couvercle et dans lequel débouchent un conduit d'amenée de fluide, un conduit de sortie de fluide et un conduit de purge, est caractérisé en ce qu'il comprend un filtre disposé dans la partie centrale du corps du pot et séparant la partie inférieure de celui-ci, dans laquelle débouchent du même côté du filtre le conduit d'amenée de fluide et le conduit de purge, et la To this end, the device which it relates to, of the type comprising a pot constituted by a hollow body the upper face of which is closed by a cover and into which open a fluid supply conduit, a fluid output conduit and a drain pipe, is characterized in that it comprises a filter arranged in the central part of the body of the pot and separating the lower part thereof, into which open on the same side of the filter the fluid supply pipe and the purge line, and the
partie supérieure dans laquelle débouche le conduit de sortie de fluide. upper part into which the fluid outlet conduit opens.
Les particules étant retenues par le filtre, du côté de la purge, et non du côté de la sortie de fluide, ont tendance à tomber par gravité du côté de la purge, ce qui permet une récupération de façon continue, le filtre pouvant être décolmaté ou libéré des impuretés qu'il retient par passage d'un fluide à contre-courant. Il n'est dès lors plus nécessaire de démonter The particles being retained by the filter, on the side of the purge, and not on the side of the fluid outlet, tend to fall by gravity on the side of the purge, which allows recovery continuously, the filter can be unclogged or released from the impurities which it retains by passing a fluid against the current. It is therefore no longer necessary to disassemble
le filtre pour procéder à la récupération des particules retenues par lui. the filter to recover the particles retained by it.
Avantageusement, le conduit de purge débouche dans le fond du corps, tandis que le conduit d'amenée de fluide débouche dans la paroi latérale du corps du pot, un élément formant déflecteur étant disposé entre le fond du corps et la zone dans laquelle débouche le conduit d'amenée de fluide. Advantageously, the purge duct opens into the bottom of the body, while the fluid supply duct opens into the side wall of the body of the pot, a deflector element being disposed between the bottom of the body and the area in which the fluid supply duct.
Dans ce cas, le déflecteur est constitué par une tôle perforée. In this case, the deflector consists of a perforated sheet.
Le déflecteur crée une barrière partielle entre le conduit d'arrivée de fluide Deflector creates a partial barrier between the fluid inlet duct
et la zone de rétention des particules solides accumulées près de la purge. and the retention zone of the solid particles accumulated near the purge.
Ainsi, les mouvements du liquide à traiter, créés par l'arrivée de ce liquide, sont amortis dans la zone située sous les déflecteurs. Le brassage dans cette zone est donc limité et les impuretés concentrées dans cette zone, au fond du corps, demeurent à proximité de la purge, pour pouvoir être mieux évacuées, sans être soumises à un phénomène de brassage résultant de Thus, the movements of the liquid to be treated, created by the arrival of this liquid, are absorbed in the area located under the deflectors. The mixing in this zone is therefore limited and the impurities concentrated in this zone, at the bottom of the body, remain close to the purge, in order to be able to be better evacuated, without being subjected to a mixing phenomenon resulting from
l'entrée de fluide.the fluid inlet.
Suivant une forme d'exécution de ce dispositif, le filtre est constitué par un panier comportant, sur l'extérieur, un bourrelet équipé d'un joint d'étanchéité prenant appui contre la face intérieure de la paroi latérale du corps du pot. Dans la mesure o le filtre possède une forme de panier, la partie creuse du panier peut être tournée vers le haut ou vers le bas. Suivant une autre caractéristique de l'invention, le panier repose sur des pieds prenant appui directement ou indirectement sur le fond du According to one embodiment of this device, the filter consists of a basket comprising, on the outside, a bead fitted with a seal bearing against the inner face of the side wall of the body of the pot. As the filter has a basket shape, the hollow part of the basket can be turned up or down. According to another characteristic of the invention, the basket rests on feet bearing directly or indirectly on the bottom of the
corps du pot.body of the pot.
Avantageusement, ce dispositif comprend des moyens magnétiques destinés à fixer les particules solides aimantables susceptibles d'être contenues dans le fluide à traiter, constitués par une plaque ajourée reposant sur le déflecteur et/ou par les pieds supportant le panier formant filtre. Ces éléments magnétiques contribuent à arrêter les particules solides métalliques, telles que les oxydes de fer, qui peuvent être véhiculés par Advantageously, this device comprises magnetic means intended to fix the magnetizable solid particles which may be contained in the fluid to be treated, constituted by an openwork plate resting on the deflector and / or by the feet supporting the basket forming the filter. These magnetic elements help stop solid metallic particles, such as iron oxides, which can be transported by
certains circuits.some circuits.
Suivant une forme d'exécution avantageuse de ce dispositif, le corps du pot est de section circulaire et le conduit d'amenée de fluide débouche tangentiellement à l'intérieur du corps. Cette disposition permet de réaliser un effet cyclonique améliorant encore la séparation solide/liquide obtenue par le média filtrant en forme de panier et par la captation sur les According to an advantageous embodiment of this device, the body of the pot is of circular section and the fluid supply duct opens tangentially inside the body. This arrangement makes it possible to achieve a cyclonic effect further improving the solid / liquid separation obtained by the basket-shaped filter medium and by the capture on the
éléments magnétiques.magnetic elements.
Afin de faciliter le nettoyage du filtre, ce dispositif comprend un système de nettoyage à contre-courant du filtre par injection de fluide dans In order to facilitate cleaning of the filter, this device includes a system for cleaning the filter against the current by injecting fluid
la partie haute du corps du pot.the upper part of the pot body.
Dans un but d'automatisation, le dispositif comprend notamment quatre électrovannes disposées respectivement sur les conduits d'amenée et de sortie de liquide, de purge et d'injection de fluide en partie haute du corps du pot, commandées par un programmateur réalisant pour le nettoyage du filtre successivement les opérations suivantes: fermeture des vannes d'amenée et de sortie de fluide, ouverture de la vanne du conduit de purge, ouverture de la vanne d'injection de fluide, puis la For the purpose of automation, the device comprises in particular four solenoid valves arranged respectively on the liquid supply and outlet conduits, for purging and for injecting fluid in the upper part of the body of the pot, controlled by a programmer carrying out for the cleaning the filter successively the following operations: closing the inlet and outlet valves of the fluid, opening the valve of the purge duct, opening the valve for injecting fluid, then
manoeuvre suivant une séquence inverse en fin de période de nettoyage. maneuver in reverse sequence at the end of the cleaning period.
De toute façon, I'invention sera bien comprise à l'aide de la In any case, the invention will be well understood using the
description qui suit, en référence au dessin schématique annexé description which follows, with reference to the attached schematic drawing
représentant, à titre d'exemples non limitatifs, plusieurs formes d'exécution de ce dispositif: Figure 1 est une vue en coupe longitudinale d'un premier dispositif; Figure 2 est une vue en coupe transversale de sa partie inférieure, les conduits d'entrée et de sortie étant représentés en vue extérieure; Figure 3 est une vue en coupe longitudinale d'un second dispositif; Figure 4 est une vue de dessus d'une variante de ce dispositif; Figure 5 est une vue en coupe longitudinale du dispositif de figure 1 équipé de moyens d'automatisation de la récupération des representing, by way of nonlimiting examples, several embodiments of this device: FIG. 1 is a view in longitudinal section of a first device; Figure 2 is a cross-sectional view of its lower part, the inlet and outlet conduits being shown in external view; Figure 3 is a longitudinal sectional view of a second device; Figure 4 is a top view of a variant of this device; Figure 5 is a longitudinal sectional view of the device of Figure 1 equipped with means for automating the recovery of
particules.particles.
La figure 1 représente un dispositif comprenant un pot constitué par un corps 2 de section circulaire comportant une paroi latérale 3 et un fond 4 incurvé vers l'extérieur, au centre duquel débouche un conduit de purge 5, sur lequel est montée une vanne 6. Dans le corps 3 débouchent, radialement et dans la partie inférieure de celui-ci un conduit 7 d'entrée de fluide, et radialement dans la partie supérieure de celui-ci un conduit 8 de sortie de fluide. Le corps 2 est fermé à sa partie supérieure par un couvercle 9, I'étanchéité de la fermeture étant réalisée par un joint 10 interposé entre le bord supérieur du corps 2, en étant logé dans une gorge que comporte ce corps, et le couvercle 9. Sur le fond 4 du corps, repose, entre le conduit de purge 5 et le conduit 7 d'entrée de fluide, un déflecteur constitué par une tôle 12 présentant des ouvertures 13. Sur cette tôle 12 repose une plaque aimantée 14 comportant les mêmes ouvertures que la tôle. Sur la plaque aimantée 14 reposent quatre pieds 15 constitués par des barreaux, eux- mêmes aimantés, disposés parallèlement à la paroi latérale 3 du corps 2, et servant à supporter une pièce de forme circulaire et constituant un bourrelet, qui est situé du côté de l'extrémité ouverte d'un filtre 17 en forme de panier. La partie 16 en forme de bourrelet comporte un évidement périphérique, dans lequel est logé un joint 18 prenant appui contre la paroi latérale 3 du pot 2. Le filtre 17 est équipé, à FIG. 1 represents a device comprising a pot constituted by a body 2 of circular section comprising a side wall 3 and a bottom 4 curved towards the outside, in the center of which opens a purge duct 5, on which a valve 6 is mounted. Radially and in the lower part of the body 3 open a fluid inlet duct 7, and radially in the upper part thereof a fluid outlet duct 8. The body 2 is closed at its upper part by a cover 9, the sealing of the closure being produced by a seal 10 interposed between the upper edge of the body 2, being housed in a groove that this body has, and the cover 9 On the bottom 4 of the body rests, between the purge pipe 5 and the fluid inlet pipe 7, a deflector constituted by a sheet 12 having openings 13. On this sheet 12 rests a magnetized plate 14 comprising the same openings than sheet metal. On the magnetized plate 14 rest four feet 15 constituted by bars, themselves magnetized, arranged parallel to the side wall 3 of the body 2, and serving to support a part of circular shape and constituting a bead, which is located on the side of the open end of a basket-shaped filter 17. The portion 16 in the form of a bead comprises a peripheral recess, in which is housed a seal 18 bearing against the side wall 3 of the pot 2. The filter 17 is equipped, at
sa partie supérieure, d'une poignée de manutention 19. its upper part, a handling handle 19.
La figure 3 représente une variante d'exécution de ce dispositif, dans laquelle les mêmes éléments sont désignés par les mêmes références que précédemment. Le dispositif ne diffère que par le fait que la partie creuse du filtre est tournée vers le haut, tandis qu'à la figure 1 la partie FIG. 3 represents an alternative embodiment of this device, in which the same elements are designated by the same references as above. The device only differs in the fact that the hollow part of the filter is turned upwards, while in FIG. 1 the part
creuse du filtre est tournée vers le bas. of the filter is facing down.
Dans la forme d'exécution représentée à la figure 4, le conduit d'entrée de fluide ne débouche pas radialement dans le corps, mais tangentiellement afin de créer un effet de cyclone qui favorise la séparation In the embodiment shown in Figure 4, the fluid inlet conduit does not open radially into the body, but tangentially to create a cyclone effect which promotes separation
entre les particules solides et le liquide. between solid particles and liquid.
La figure 5 représente le dispositif de figure 1 équipé d'une électrovanne 22 disposée sur le conduit 7 d'entrée de fluide, d'une électrovanne 23 disposée sur le conduit 8 de sortie du fluide, d'une électrovanne 24 disposée sur le conduit de purge 5, d'une buse 25 d'injection de fluide à travers le couvercle 9, cette buse 25 étant alimentée par un conduit 26 sur lequel est montée une électrovanne 27. La figure 5 permet d'automatiser la récupération des particules solides grâce à une programmation agissant sur les électrovannes selon la séquence suivante fermeture des électrovannes 22 et 23, - ouverture de l'électrovanne de purge 24, - ouverture de l'électrovanne 27 pour alimenter la buse 25 en eau de lavage, - récupération des particules dans le conduit 5 de purge, fermeture de l'électrovanne 27, - fermeture de l'électrovanne 24, ouverture des électrovannes 22 et 23 pour rétablissement du circuit. Comme il ressort de ce qui précède, I'invention apporte une grande amélioration à la technique existante, en fournissant un dispositif de rétention d'impuretés, de structure simple, d'une grande efficacité, et dans lequel la récupération des impuretés peut être effectuée sans démontage Figure 5 shows the device of Figure 1 equipped with a solenoid valve 22 disposed on the conduit 7 for fluid inlet, a solenoid valve 23 disposed on the conduit 8 for fluid outlet, a solenoid valve 24 disposed on the conduit purge 5, a nozzle 25 for injecting fluid through the cover 9, this nozzle 25 being supplied by a conduit 26 on which is mounted a solenoid valve 27. FIG. 5 makes it possible to automate the recovery of solid particles by to a programming acting on the solenoid valves according to the following sequence closing of the solenoid valves 22 and 23, - opening of the purge solenoid valve 24, - opening of the solenoid valve 27 to supply the nozzle 25 with washing water, - recovery of particles in the purge duct 5, closing of the solenoid valve 27, - closing of the solenoid valve 24, opening of the solenoid valves 22 and 23 to restore the circuit. As is clear from the above, the invention brings a great improvement to the existing technique, by providing an impurity retention device, of simple structure, of high efficiency, and in which the impurity recovery can be carried out without disassembly
des moyens filtrants.filtering means.
Comme il va de soi, I'invention ne se limite pas aux seules formes d'exécution de ce dispositif, décrites ci-dessus à titre d'exemples, elle en embrasse au contraire toutes les variantes. C'est ainsi notamment que ce dispositif pourrait ne pas comporter d'éléments magnétiques, ou encore que la forme du filtre pourrait être différente, sans que l'on sorte It goes without saying that the invention is not limited to the sole embodiments of this device, described above by way of examples, on the contrary, it embraces all of the variants thereof. Thus, in particular, this device could not include magnetic elements, or even that the shape of the filter could be different, without leaving
pour autant du cadre de l'invention. however within the scope of the invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9904613A FR2791904B1 (en) | 1999-04-07 | 1999-04-07 | DEVICE FOR RETENTION OF IMPURITIES CONTAINED IN SUSPENSION IN A FLUID |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9904613A FR2791904B1 (en) | 1999-04-07 | 1999-04-07 | DEVICE FOR RETENTION OF IMPURITIES CONTAINED IN SUSPENSION IN A FLUID |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2791904A1 true FR2791904A1 (en) | 2000-10-13 |
| FR2791904B1 FR2791904B1 (en) | 2002-05-17 |
Family
ID=9544344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9904613A Expired - Lifetime FR2791904B1 (en) | 1999-04-07 | 1999-04-07 | DEVICE FOR RETENTION OF IMPURITIES CONTAINED IN SUSPENSION IN A FLUID |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2791904B1 (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT410179B (en) * | 2000-11-13 | 2003-02-25 | Michael Mag Kunater | Self-cleaning filter, for separating and retaining solid particles from liquid flow, has upward liquid inflow to float particles away from woven filter to drop by gravity to filter housing base for disposal |
| EP1470080A4 (en) * | 2002-01-09 | 2005-03-30 | Birgir Nilsen | Apparatus and method for separating and filtering particles and organisms from flowing liquids |
| WO2010121942A1 (en) * | 2009-04-21 | 2010-10-28 | BSH Bosch und Siemens Hausgeräte GmbH | Household laundry dryer and filtering method |
| WO2011076685A1 (en) * | 2009-12-22 | 2011-06-30 | BSH Bosch und Siemens Hausgeräte GmbH | Filter device, household appliance, and method for filtering |
| US8201697B2 (en) | 2005-08-18 | 2012-06-19 | Dow Global Technologies Llc | Hydroclone based fluid filtration system |
| US8663472B1 (en) | 2011-05-06 | 2014-03-04 | Dow Global Technologies Llc | Multi-chambered hydroclone |
| US8882999B2 (en) | 2010-06-17 | 2014-11-11 | Dow Global Technologies Llc | Cleaning assembly for use in fluid filtration systems |
| US8960450B2 (en) | 2010-12-08 | 2015-02-24 | Dow Global Technologies Llc | Apparatus and method for implementing hydroclone based fluid filtration systems with extensible isolated filter stages |
| US9050610B2 (en) | 2012-05-17 | 2015-06-09 | Dow Global Technologies Llc | Hydroclone with inlet flow shield |
| US9186604B1 (en) | 2012-05-31 | 2015-11-17 | Dow Global Technologies Llc | Hydroclone with vortex flow barrier |
| US9192946B2 (en) | 2012-10-26 | 2015-11-24 | Dow Global Technologies Llc | Hydroclone |
| US9527091B2 (en) | 2013-12-05 | 2016-12-27 | Dow Global Technologies Llc | Hydroclone with improved cleaning assembly |
| CN108502992A (en) * | 2018-03-28 | 2018-09-07 | 绍兴柯桥双典纺织有限公司 | A kind of Weaving device coolant purification system |
| US10207205B2 (en) | 2014-12-18 | 2019-02-19 | Dow Global Technologies Llc | Cylindrical filter screen with tensioning mechanism |
| IT201800009582A1 (en) * | 2018-10-18 | 2020-04-18 | Hydronic Patents Srl | FILTERING DEVICE ESPECIALLY FOR HEATING SYSTEMS |
| RU2793244C2 (en) * | 2019-10-18 | 2023-03-30 | Хидроник Патентс С.Р.Л. | Filtering device, particularly for heating systems |
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| US4064938A (en) * | 1976-01-12 | 1977-12-27 | Standard Oil Company (Indiana) | Well screen with erosion protection walls |
| WO1993001877A1 (en) * | 1991-07-25 | 1993-02-04 | Serck Baker Limited | Separator |
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| US2747741A (en) * | 1952-08-21 | 1956-05-29 | Gulf Research Development Co | Device for continuous removal of solids from fluids |
| FR1104542A (en) * | 1954-05-14 | 1955-11-21 | Liquid purification process and apparatus | |
| US2959287A (en) * | 1956-03-19 | 1960-11-08 | Philips Corp | Magnetic separator |
| US3890232A (en) * | 1973-03-26 | 1975-06-17 | Kuss & Co R L | Fluid filter |
| US4053409A (en) * | 1975-03-26 | 1977-10-11 | Caterpillar Tractor Co. | Removable filter assembly with bypass valve |
| US4064938A (en) * | 1976-01-12 | 1977-12-27 | Standard Oil Company (Indiana) | Well screen with erosion protection walls |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT410179B (en) * | 2000-11-13 | 2003-02-25 | Michael Mag Kunater | Self-cleaning filter, for separating and retaining solid particles from liquid flow, has upward liquid inflow to float particles away from woven filter to drop by gravity to filter housing base for disposal |
| EP1470080A4 (en) * | 2002-01-09 | 2005-03-30 | Birgir Nilsen | Apparatus and method for separating and filtering particles and organisms from flowing liquids |
| US8201697B2 (en) | 2005-08-18 | 2012-06-19 | Dow Global Technologies Llc | Hydroclone based fluid filtration system |
| US8701896B2 (en) | 2005-08-18 | 2014-04-22 | Dow Global Technologies Llc | Hydroclone based fluid filtration system |
| WO2010121942A1 (en) * | 2009-04-21 | 2010-10-28 | BSH Bosch und Siemens Hausgeräte GmbH | Household laundry dryer and filtering method |
| EA019148B1 (en) * | 2009-04-21 | 2014-01-30 | Бсх Бош Унд Сименс Хаусгерете Гмбх | Household laundry dryer and method for filtering condensate water therein |
| US8863401B2 (en) | 2009-04-21 | 2014-10-21 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Household laundry dryer condensate filtering apparatus and method |
| WO2011076685A1 (en) * | 2009-12-22 | 2011-06-30 | BSH Bosch und Siemens Hausgeräte GmbH | Filter device, household appliance, and method for filtering |
| CN102686793A (en) * | 2009-12-22 | 2012-09-19 | Bsh博世和西门子家用电器有限公司 | Filter device, household appliance, and method for filtering |
| CN102686793B (en) * | 2009-12-22 | 2015-07-22 | Bsh家用电器有限公司 | Filter device, household appliance, and method for filtering |
| US8882999B2 (en) | 2010-06-17 | 2014-11-11 | Dow Global Technologies Llc | Cleaning assembly for use in fluid filtration systems |
| US8960450B2 (en) | 2010-12-08 | 2015-02-24 | Dow Global Technologies Llc | Apparatus and method for implementing hydroclone based fluid filtration systems with extensible isolated filter stages |
| US8663472B1 (en) | 2011-05-06 | 2014-03-04 | Dow Global Technologies Llc | Multi-chambered hydroclone |
| US9050610B2 (en) | 2012-05-17 | 2015-06-09 | Dow Global Technologies Llc | Hydroclone with inlet flow shield |
| US9186604B1 (en) | 2012-05-31 | 2015-11-17 | Dow Global Technologies Llc | Hydroclone with vortex flow barrier |
| US9192946B2 (en) | 2012-10-26 | 2015-11-24 | Dow Global Technologies Llc | Hydroclone |
| US9527091B2 (en) | 2013-12-05 | 2016-12-27 | Dow Global Technologies Llc | Hydroclone with improved cleaning assembly |
| US10207205B2 (en) | 2014-12-18 | 2019-02-19 | Dow Global Technologies Llc | Cylindrical filter screen with tensioning mechanism |
| CN108502992A (en) * | 2018-03-28 | 2018-09-07 | 绍兴柯桥双典纺织有限公司 | A kind of Weaving device coolant purification system |
| IT201800009582A1 (en) * | 2018-10-18 | 2020-04-18 | Hydronic Patents Srl | FILTERING DEVICE ESPECIALLY FOR HEATING SYSTEMS |
| WO2020079657A1 (en) * | 2018-10-18 | 2020-04-23 | Hydronic Patents S.R.L. | Filtering device especially for heating systems |
| CN112912155A (en) * | 2018-10-18 | 2021-06-04 | 液体循环系统专利责任有限公司 | Filter device, in particular for heating systems |
| RU2793244C2 (en) * | 2019-10-18 | 2023-03-30 | Хидроник Патентс С.Р.Л. | Filtering device, particularly for heating systems |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2791904B1 (en) | 2002-05-17 |
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