FR2785825A1 - Filter for removing suspended material from fluids in the head of a pump has straight part of horse-shoe in suction box masking the end of the cleaning scrapers - Google Patents

Filter for removing suspended material from fluids in the head of a pump has straight part of horse-shoe in suction box masking the end of the cleaning scrapers Download PDF

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Publication number
FR2785825A1
FR2785825A1 FR9814380A FR9814380A FR2785825A1 FR 2785825 A1 FR2785825 A1 FR 2785825A1 FR 9814380 A FR9814380 A FR 9814380A FR 9814380 A FR9814380 A FR 9814380A FR 2785825 A1 FR2785825 A1 FR 2785825A1
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France
Prior art keywords
bulb
suction
slots
suction box
pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR9814380A
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French (fr)
Inventor
Hutchinson Alain Chard
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Individual
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Individual
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Publication date
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Priority to FR9814380A priority Critical patent/FR2785825A1/en
Publication of FR2785825A1 publication Critical patent/FR2785825A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
    • B01D29/46—Edge filtering elements, i.e. using contiguous impervious surfaces of flat, stacked bodies
    • 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
    • B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
    • B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The straight part of the horseshoe in the suction box (1) masks the end of the cleaning scrapers (7). The extract the suspended materials recovered along the vents (2) and retain them on the outside against the side of bars (3). The filtering part uses as filter elements a series of calibrated vents which are arranged in the round and straight part of the suction box of a pump. The calibrated vents are obtained by stacking layers (3) with an internal section removed to fit the horseshoe. The layers, separated by dividers (4) with similar contours but with the hollow part suppressed, give the required thickness to achieve the desired level of filtration. The filter is cleaned by a series of blades driven by hydraulic means, passing between the vents and crossing them to push the material to the edge (8). The energy to drive the system is recovered by a hydromotor bulb installed in the suction pipe (13) of the pump, with a turbine (12) driven by the fluid flow. The turbine slides on its axis in the bulb (11) acting as a non return valve by lifting and resting on its base during suction. The transmission, protected in a box (9) in the base, allows a hydro motor bulb to be used as a means of energy for the system.

Description

La présente invention concerne un dispositif permettant de filtrer les Matières En Suspension (MES), indésirables dans un fluide lors d'un pompage. Afin que ces MES ne perturbent pas le fonctionnement des circuits de pompage, l'installation d'un moyen de filtration, du genre crépine, cage grillagée, ou dégrilleur, est indispensable. Attirées par ! e ffux généré par le pompage, les MES viennent se bloquer et colmater les éléments filtrants, ce qui occasionne souvent, à plus ou moyen terme, un bouchon à 1'aspiration, puis une coupure d'alimentation en fluide, et donc un désamorçage de la pompe qui peut se révéler rapidement grave, suivant la demande (ravitaillement des pompiers, refroidissement machine, inondations, etc.). The present invention relates to a device for filtering Suspended Matter (MES) in a fluid during pumping. So that these MES do not disturb the functioning of the pumping circuits, the installation of a filtration means, such as a strainer, wire cage, or screen, is essential. Attracted by! e ffux generated by pumping, the MES come to block and clog the filter elements, which often causes, in the medium or long term, a plug in the suction, then a cut off of fluid supply, and therefore a defusing of the pump which can quickly become serious, depending on demand (firefighters' supplies, machine cooling, floods, etc.).

Le dispositif selon l'invention permet de parer à ces inconvénients TI se compose, selon une première caractéristique, d'un boitier d'aspiration (1), en forme de"fer à cheval"fermé en bout par une plaque, intégrant une partie filtration composée d'une grille (5) aux barreaux courbes, par laquelle le fluide est aspiré, et d'un ensemble de décolmatage de la grille (5), interne au boitier (1), supportant des couteaux (7) tournants sur le mme axe que la grille. Ces couteaux (7), apparaissants à une cxtrémite de la grille (5) extraient Ies MES bloquées entres les barreaux (3) en suivant la courbure de la grille (5), et, en s'escamotant à l'intérieur du boitier (1), s'en dégagent contre une butée, en les stockant hors flux d'aspiration. Dans le conduit d'aspiration (13) installé sur la panic superieur boitier (1), un bulbe hydro moteur (I 1) entraine Ie systcme de décolmatage, en récupérant l'énergie engendrée par le passage du fluide dans le conduit d'aspiration (13). The device according to the invention overcomes these drawbacks TI consists, according to a first characteristic, of a suction box (1), in the shape of a "horseshoe" closed at the end by a plate, integrating a part filtration composed of a grid (5) with curved bars, by which the fluid is sucked up, and a set of unclogging of the grid (5), internal to the housing (1), supporting knives (7) rotating on the same axis as the grid. These knives (7), appearing at one end of the grid (5) extract the MES blocked between the bars (3) following the curvature of the grid (5), and, by retracting inside the housing ( 1), are released against a stopper, storing them outside the suction flow. In the suction duct (13) installed on the upper panic box (1), a hydro motor bulb (I 1) drives the unclogging system, recovering the energy generated by the passage of the fluid in the suction duct (13).

Selon des modes particuliers de réalisation :
-le boitier peut tre compose d'un empilement alterne de lames au mme contour caractéristique en"fer à cheval"que le boitier, et d'entretoises au môme contour, partie courbe enlevez qui composent une grille filtrante aux barreaux et fentes cintrés.According to particular embodiments:
the box can be made up of an alternate stack of blades with the same characteristic "horseshoe" outline as the box, and spacers with the same outline, with the curved part removed, which make up a filtering grid with curved bars and slots.

-les fentes peuvent tre obtenues par des découpes, de mme gabarit, sur une tôle cintrée constituant la grille de filtration, le tout rappelant la forme extérieur du boîtier. the slots can be obtained by cutouts, of the same size, on a curved sheet metal constituting the filtration grid, the whole recalling the external shape of the housing.

-la forme"en fer à chc al"du boitier, intereenant dans Ie netto-age des couteaux, peut tre modifiée et adaptée selon le milieu de travail du système. the “iron-chc al” shape of the case, which is used in cleaning the knives, can be modified and adapted according to the working environment of the system.

-le nombre de fentes peut tre ajusté, suivant le débit demandé. the number of slots can be adjusted, depending on the requested flow rate.

-I'épaisseur des fentes peut tre modifiée selon le diamètre de filtration demande. -The thickness of the slots can be modified according to the filtration diameter requested.

-le rapport de réduction de l'entraînement des couteaux peut tre modifié afin d'ajuster fa vitesse de rotation, modifiant ainsi le coefficient de passage de la crépine. the reduction ratio of the knife drive can be modified in order to adjust the speed of rotation, thus modifying the passage coefficient of the strainer.

-1'entrainement peut tre assuré, selon la nature de l'installation de pompage. par moto-réducteur. - Training can be provided, depending on the nature of the pumping installation. by gear motor.

-la forme des couteaux peur tre modifiée, selon la nature des matières et du fluide à pomper. the shape of the knives can be modified, depending on the nature of the materials and of the fluid to be pumped.

-l'inclinaison et la taille du bulbc hdro motcur pcut etre adaptée, selon la nature des matières et du fluide à pomper. -the inclination and size of the bulbc hdro motcur pcut be adapted, depending on the nature of the materials and the fluid to be pumped.

-1'ensemble peut tre fabriqué en résines, matières plastiques, ou métaux. The assembly can be made of resins, plastics, or metals.

-la forme des couvercles fermant le boitier, peut comporter des systèmes de manutention et d'appuis. -the shape of the covers closing the case, may include handling and support systems.

Les dessins annexés illustrent l'invention :
-la figure I représente la vue de coté du dispositif
-la figure 2 représente ta vue de dessus du dispositif, suivant la coupe AA.The accompanying drawings illustrate the invention:
FIG. I represents the side view of the device
FIG. 2 represents your top view of the device, along section AA.

-la figure 3 représente l'éclaté du dispositif, vu en perspective. FIG. 3 represents the exploded view of the device, seen in perspective.

-la figure 4 représente une vue en perspective du dispositif
En référence à ces dessins, le dispositif de filtration se compose d'un boitier d'aspiration (1) integrant, sur sa moitié, une grille cintrée (5). supportant un conduit d'aspiration (13) sur sa partie supérieure, et intégrant un système de couteaux (7), dépassants et tournants concentriquement à la grille cintrée (5). qui décolmatent, dans leur mouvement, les barreaux (3) et les fentes (2) de la grille (5) sur toute leur longueur, maintenant un passage ouvert maximum du fluide vers l'intérieur du boîtier d'aspiration (1). FIG. 4 represents a perspective view of the device
With reference to these drawings, the filtration device consists of a suction box (1) incorporating, on its half, a curved grid (5). supporting a suction duct (13) on its upper part, and integrating a system of knives (7), protruding and rotating concentrically with the curved grid (5). which unclog, in their movement, the bars (3) and the slots (2) of the grid (5) over their entire length, maintaining a maximum open passage of the fluid towards the interior of the suction housing (1).

Les couteaux sont animés par un ensemble réducteur, situé dans un caner (9) en partie basse du boitier d'aspiration (1), transmettant le mouvement rotatif d'une turbine (12), installé dans un bulbe (I 1) constituant la base du conduit d'aspiration (13).  The knives are driven by a reduction unit, located in a caner (9) in the lower part of the suction unit (1), transmitting the rotary movement of a turbine (12), installed in a bulb (I 1) constituting the base of the suction duct (13).

Conception du boitier d'aspiration-sa forme caractéristique.Design of the suction box - its characteristic shape.

Dans la forme de réalisation selon les dessins 1, 2,3 et 4, le boitier d'aspiration (1). parallalélèpipedique et demi cylindrique à une extrémité, en forme extérieure de"fer à cheval", est obtenu par l'empilement successif de lames usinées (3), au mme contour extérieur que la forme générale du boitier et comportant une découpe spécifique intérieure, et d'entretoises (4) de forme scmblable, la partie courbe retiree. Après assemblagc. on obtient une grille courbe (5), faisant partie intégrante au boîtier d'aspiration, constituée de barreaux (3) en demi anneaux. permettant le montage central d'un système de décolmalage. Deux carters plats symétriques (9.10), viennent fermer la base et le dessus du boîtier d'aspiration (1).  In the embodiment according to the drawings 1, 2,3 and 4, the suction box (1). parallelepipedal and semi-cylindrical at one end, in the external shape of a "horseshoe", is obtained by the successive stacking of machined blades (3), with the same external contour as the general shape of the case and comprising a specific internal cutout, and spacers (4) of scmblable form, the curved part removed. After assembly. a curved grid (5) is obtained, forming an integral part of the suction housing, consisting of bars (3) in half rings. allowing the central mounting of a cleaning system. Two symmetrical flat housings (9.10) close the base and the top of the suction box (1).

Les carters.The housings.

Ces deux carters plats (9,10) viennent compléter ! e boîtier d'aspiration ( !) :
-la semelle (9), renfermant la réduction, entraînée par la turbine (12), et supportant l'entraînement du système de décolmatagc, vient fermer ta base du boitier.These two flat housings (9,10) complete! e suction box (!):
-the sole (9), containing the reduction, driven by the turbine (12), and supporting the drive of the cleaning system, comes to close your base of the box.

-le capot supérieur (10), communiquant avec t'intérieur du boitier, reçoit le conduit d'aspiration (13) renfermant un bulbe hydro-moteur (11), et v ient fermer le haut du boitier. the upper cover (10), communicating with the interior of the housing, receives the suction duct (13) containing a hydro-motor bulb (11), and closes the top of the housing.

* La turbine-L'entraînement du système
Un bulbe hydro moteur (I I), installé dans le conduit d'aspiration (13), entraîne les couteaux circulaires (7) par l'intermédiaire d'une chaine successive d'arbre primaire-pignon d'attaque-plateau denté constituant la transmission qui est protégée dans un carter inférieur (9) fermant le boîtier d'aspiration (1) en sa base. La turbine (12), en coulissant sur t'arbre primaire, fait office de clapet anti retour en se soulevant de son embase à l'aspiration, et l'obturant dès t'arrt du pompage. Ainsi, dès la mise en route de la pompe. la dépression occasionnée par le pompage met en mouvement le systcme de decolmatage. * The turbine-The drive system
A hydro motor bulb (II), installed in the suction duct (13), drives the circular knives (7) via a successive chain of primary shaft-drive pinion-toothed plate constituting the transmission which is protected in a lower casing (9) closing the suction box (1) at its base. The turbine (12), sliding on the primary shaft, acts as a non-return valve by lifting from its base at the suction, and closing it as soon as you stop pumping. So, as soon as the pump is started. the depression caused by the pumping sets in motion the unclogging system.

* Le système de decolmatage-La forme du boîtier. * The unclogging system - The shape of the housing.

Tournant dans l'axe de la grille (5), un arbre central (6) supporte un jeu de couteaux circulaires (7), dont les extrémités dépassent à l'extérieur du boitier (1) en passant à l'intérieur des fentes (2), entre les barreaux (3) de la grille (5). Les extrémités restent apparentes sur Ic pourtour de la grille, et, poursuivant leur rotation sous la partie du droite du boîtier d'aspiration (1), viennent se masquer en bout des barreaux (3) en se dégageant des matières retirées au point de masquage, contre une butée (8) située à l'extérieur du boîtier d'aspiration (1).  Rotating in the axis of the grid (5), a central shaft (6) supports a set of circular knives (7), the ends of which protrude outside the housing (1) passing inside the slots ( 2), between the bars (3) of the grid (5). The ends remain visible on the circumference of the grid, and, continuing their rotation under the right-hand part of the suction housing (1), come to hide at the end of the bars (3) while being released from the materials removed at the masking point. , against a stop (8) located outside the suction housing (1).

Selon une variante non illustrée, I'axe du conduit d'aspiration (13), comportant le système h-dro moteur composé de la turbine (12) et du bulbe (11), peut avoir d'autres inclinaisons par rapport au corps de du système, selon l'utilisation de la crépine
Ce dispositif, selon l'invention, évite les inconvénients de coupures de pompage, souvent occasionnés par le colmatage de systèmes de protection, installés en tte d'un pompage, filtrants les Matières En Suspension. According to a variant not illustrated, the axis of the suction duct (13), comprising the h-dro motor system composed of the turbine (12) and the bulb (11), may have other inclinations relative to the body of of the system, depending on the use of the strainer
This device, according to the invention, avoids the drawbacks of pumping cuts, often caused by the clogging of protection systems, installed at the head of a pumping, filtering suspended matter.

Claims (6)

REVENDICATIONS 1-Dispositif de filtration de matière en suspension dans des fluides, installé en tte de pompage, caractérise en ce que la partie droite de la forme en"fer à cheval"du boitier d'aspiration (1) vient masquer l'extrémité apparentes des couteaux de décolmatage (7), sewant d'extracteur en retenant à l'extérieur, contre le bord des barreaux (3), les Matières En Suspension récupérées tout le long des fentes (2).CLAIMS 1-Device for filtering matter suspended in fluids, installed at the pump head, characterized in that the right part of the "horseshoe" shape of the suction box (1) masks the visible end unclogging knives (7), sewant extractor retaining outside, against the edge of the bars (3), the Suspended Matter recovered along the slots (2). 2-Le dispositif selon la revendication 1, caractérisé en ce que la partie filtrante du système utilise comme éléments filtrants une série de fentes calibrées (2) qui sont aménagées sur l'arrondi et une partie du corps droit du boîtier d'aspiration (1). perpendiculaires à l'axe de l'arrondi.2-The device according to claim 1, characterized in that the filtering part of the system uses as filtering elements a series of calibrated slots (2) which are arranged on the flare and a part of the straight body of the suction housing (1 ). perpendicular to the axis of the rounding. 3-Le dispositif selon la revendication 1, caractérisé en ce que la partie filtrante (5) du système constitue une partie du boitier d'aspiration.3-The device according to claim 1, characterized in that the filtering part (5) of the system constitutes a part of the suction box. A-Le dispositif selon la revendication 2, caractérise en ce que les fentes courbes calibrées (2) sont obtenues par l'empilement successif de lames (3). avec une découpe intérieure et au mme contour"en fer à cheval"que le boîtier séparées par des entretoises (4), au contour similaire dont la partie courbe a été supprimée, ayant une épaisseur précise qui détermine le degré de filtration demande. A-The device according to claim 2, characterized in that the calibrated curved slots (2) are obtained by the successive stacking of blades (3). with an inner cutout and with the same "horseshoe" outline as the housing separated by spacers (4), with a similar outline from which the curved part has been removed, having a precise thickness which determines the degree of filtration required. 5-Le dispositif selon les revendications 1,2 et 3, caractérisé en ce que le décolmatagc, animé hydrauliquement, est assuré par un système des couteaux (7) passant à l'intérieur des fentes (2) et, les traversants, nettoient l'extérieur de ces fentes en repoussant les matières décolmatées vers la butée (8), selon la revendication 1.5-The device according to claims 1,2 and 3, characterized in that the unclogging, hydraulically driven, is provided by a system of knives (7) passing inside the slots (2) and, through, clean l outside of these slots by pushing the unclogged materials towards the stop (8) according to claim 1. 6-Dispositif selon la revendication 5 caractérisé en ce que l'énergie. pour l'entraînement du système, est récupérée par un bulbe hfidro moteur (I I), installe dans le conduit d'aspiration (13) du pompage, comportant une turbine (12) entraînée par la vitesse du courant du fluide.6-Device according to claim 5 characterized in that energy. for the drive of the system, is recovered by a hfidro motor bulb (I I), installed in the suction pipe (13) of the pumping, comprising a turbine (12) driven by the speed of the fluid current. 7-Le dispositif selon la revendication 6 caractérisé en ce que la turbine (12) installée dans le bulbe (11), coulissante sur son axe, sert de clapet anti retour en se soulevant et se reposant de son embase dans le bulbe lors de l'aspiration.7-The device according to claim 6 characterized in that the turbine (12) installed in the bulb (11), sliding on its axis, serves as a non-return valve by lifting and resting from its base in the bulb during the aspiration. 8-Dispositif caractérisé en ce que la transmission. protégée dans un carter (9) en partie basse, permet l'emploie d'un bulbe hydro moteur (11) comme moyen d'énergie au système 8-Device characterized in that the transmission. protected in a casing (9) in the lower part, allows the use of a hydro motor bulb (11) as a means of energy for the system
FR9814380A 1998-11-16 1998-11-16 Filter for removing suspended material from fluids in the head of a pump has straight part of horse-shoe in suction box masking the end of the cleaning scrapers Withdrawn FR2785825A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9814380A FR2785825A1 (en) 1998-11-16 1998-11-16 Filter for removing suspended material from fluids in the head of a pump has straight part of horse-shoe in suction box masking the end of the cleaning scrapers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9814380A FR2785825A1 (en) 1998-11-16 1998-11-16 Filter for removing suspended material from fluids in the head of a pump has straight part of horse-shoe in suction box masking the end of the cleaning scrapers

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FR2785825A1 true FR2785825A1 (en) 2000-05-19

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FR9814380A Withdrawn FR2785825A1 (en) 1998-11-16 1998-11-16 Filter for removing suspended material from fluids in the head of a pump has straight part of horse-shoe in suction box masking the end of the cleaning scrapers

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150367261A1 (en) * 2014-06-20 2015-12-24 Geolog S.R.L. Filtering device for oil drilling mud

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1719346A (en) * 1928-10-26 1929-07-02 Swinney Brothers Ltd Filtering or like device
US2440384A (en) * 1944-07-20 1948-04-27 Kurtiss P Schenke Self-cleaning strainer
FR1285561A (en) * 1961-03-16 1962-02-23 Jonneret S A Atel Const Automatic cleaning filtering installation, in particular for water intake bypassing a main channel
US3616914A (en) * 1969-08-12 1971-11-02 Standard Products Co Self-cleaning filter system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1719346A (en) * 1928-10-26 1929-07-02 Swinney Brothers Ltd Filtering or like device
US2440384A (en) * 1944-07-20 1948-04-27 Kurtiss P Schenke Self-cleaning strainer
FR1285561A (en) * 1961-03-16 1962-02-23 Jonneret S A Atel Const Automatic cleaning filtering installation, in particular for water intake bypassing a main channel
US3616914A (en) * 1969-08-12 1971-11-02 Standard Products Co Self-cleaning filter system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150367261A1 (en) * 2014-06-20 2015-12-24 Geolog S.R.L. Filtering device for oil drilling mud

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