FR2490969A1 - Renewable cylindrical element in filter for liq. or gas - has integral annular seal for compression joint direct to outlet pipe - Google Patents

Renewable cylindrical element in filter for liq. or gas - has integral annular seal for compression joint direct to outlet pipe Download PDF

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Publication number
FR2490969A1
FR2490969A1 FR8021088A FR8021088A FR2490969A1 FR 2490969 A1 FR2490969 A1 FR 2490969A1 FR 8021088 A FR8021088 A FR 8021088A FR 8021088 A FR8021088 A FR 8021088A FR 2490969 A1 FR2490969 A1 FR 2490969A1
Authority
FR
France
Prior art keywords
filter
outlet pipe
seal
filter element
cylindrical
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.)
Pending
Application number
FR8021088A
Other languages
French (fr)
Inventor
Elie Petitjean
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FILTRATION SA
Original Assignee
FILTRATION SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FILTRATION SA filed Critical FILTRATION SA
Priority to FR8021088A priority Critical patent/FR2490969A1/en
Publication of FR2490969A1 publication Critical patent/FR2490969A1/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411—Filter cartridges
    • 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
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • 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
    • B01D35/30—Filter housing constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002—Casings; Housings; Frame constructions
    • B01D46/0005—Mounting of filtering elements within casings, housings or frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/28—Position of the filtering element
    • B01D2201/287—Filtering elements with a vertical or inclined rotation or symmetry axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/30—Filter housing constructions
    • B01D2201/301—Details of removable closures, lids, caps, filter heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/34—Seals or gaskets for filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2271/00—Sealings for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2271/02—Gaskets, sealings
    • B01D2271/022—Axial sealings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The filter is one of the type which has a cylindrical, inner screen of perforated sheet material surrounded by a sleeve of filter material. A cylindrical outer screen of perforated sheet material surrounds the filter material. Each end of the element is covered with a cap of which one has an orifice into the inner screen and the other is fully closed. The orifice is connected to the filter outlet pipe, with a leakproof joint between the outlet pipe and the cap. At the fully closed end of the element, the cap is held in place by axial thrust of a screw which passed through a bridge piece fixed to the casing. At the end of the element connected to the outlet pipe, the edge of the orifice is turned inwards to form an annular, concave seating channel for leakproof joint. Pref. the channel is of semi-circular cross-section to accommodate an O-ring. The construction of the filter is simpler and cheaper than when the seal has to be clamped against the element by a plate welded to the discharge pipe. The seal is now clamped directly by the end of the pipe.

Description

La présente invention concerne un élément filtrant pour filtre de produits liquides ou gazeux comprenant un noyau cylindrique perforé, entouré de matière filtrante elle-même entourée epar un organe de protection cylindrique, concentrique au noyau, l'ensemble étant bridé entre deux embouts annulaires dont chacun est emboîté sur l'une des extrémités du noyau et de l'organe de protection, dont l'un est relié à la tubulure de sortie du filtre avec interposition d'un joint d'étanchéité, et dont l'autre est maintenu en place par une coupelle de fermeture elle-même soumise à la pression d'une vis de serrage portée par une traverse prenant appui sur le corps de filtre. The present invention relates to a filter element for filtering liquid or gaseous products comprising a perforated cylindrical core, surrounded by filter material itself surrounded by a cylindrical protective member, concentric with the core, the assembly being clamped between two annular ends each of which is fitted onto one end of the core and of the protective member, one of which is connected to the outlet pipe of the filter with the interposition of a seal, and the other of which is held in place by a closing cup itself subjected to the pressure of a clamping screw carried by a crosspiece bearing on the filter body.

Actuellement, l'étanchéité entre la tubulure de sortie et l'embout correspondant est obtenue par un joint annulaire plat porté par une coupelle de centrage soudée à ltextrémité de ladite tubulure. Currently, the seal between the outlet pipe and the corresponding nozzle is obtained by a flat annular seal carried by a centering cup welded to the end of said pipe.

La présente inventionrvise à simplifier la fabrication de ces déments filtrants. A cet effet, dans l'élé- ment qu'elle concerne et qui est du type précité, l'em- bout annulaire destiné à être relié à la tubulure de sortie, présente, sur au moins 'un de ses bords intérieur ou extérieur, un retour formant une gorge apte à recevoir et loger, au moins partiellement, un joint d'étanchéité destiné à être appliqué contre l'extrémité de la tubulure de sortie, le profil de la gorge étant adapté à celui de la section du joint. The present invention aims to simplify the manufacture of these filter dies. To this end, in the element which it concerns and which is of the aforementioned type, the annular end piece intended to be connected to the outlet pipe, has, on at least one of its inner or outer edges , a return forming a groove capable of receiving and housing, at least partially, a seal intended to be applied against the end of the outlet pipe, the profile of the groove being adapted to that of the section of the seal.

De préférence, la gorge est sensiblement semi-cylindrique et le joint est torique. Preferably, the groove is substantially semi-cylindrical and the seal is O-ring.

On pourrait prévoir les deux embouts identiques. We could provide two identical tips.

Toutefois, pour permettre l'utilisation de cet élément filtrant avec les filtres courants, seul l'un des embouts est muni de ce retour de manière a pouvoir disposer l'autre embout qui participe au centrage de l'élément filtrant du côté de la tubulure de sortie lorsque celle-ci est équipée d'une coupelle de centrage.However, to allow the use of this filter element with current filters, only one of the end pieces is provided with this return so as to be able to have the other end piece which participates in the centering of the filter element on the side of the tube. outlet when it is fitted with a centering cup.

De toute façon, l'invention sera bien comprise à l'aide de la description qui suit en référence au dessin schématique annexé représentant, à titre d'exemple non limitatif, une forme d'exécution d'un filtre équipé de l'élément filtrant selon l'invention. In any case, the invention will be clearly understood with the aid of the description which follows with reference to the appended schematic drawing representing, by way of nonlimiting example, an embodiment of a filter equipped with the filtering element according to the invention.

Figure 1 en est une vue en coupe axiale en position normale d'utilisation,
Figure 2 est une vue similaire à figure 1 dans le cas ou cet élément filtrant est utilisé avec un corps de filtre d'un type traditionnel.FIG. 1 is a view in axial section thereof in the normal position of use,
Figure 2 is a view similar to Figure 1 in the case where this filter element is used with a filter body of a traditional type.

Sur le dessin est représenté le corps 2 d'un filtre équipé de sa tubulure d'entrée 3 et de sa tubulure de sortie 4. In the drawing is shown the body 2 of a filter equipped with its inlet pipe 3 and its outlet pipe 4.

Une vis 2 portée par une traverse 6 prenant appui sur des butées 7 portées par le corps 2 permet de brider un élément filtrant 8 contre l'extrémité de la tubulure de sortie 4. A screw 2 carried by a cross-member 6 bearing on stops 7 carried by the body 2 makes it possible to clamp a filter element 8 against the end of the outlet pipe 4.

Connue le montre la figure 2, dans les filtres actuellement connus, la tubulure de sortie 4 est équipée d'une coupelle de centrage 9 qui lui est fixée par une soudure Il et qui supporte l'élément filtrant 8 avec interposition d'un joint d'étanchéité 12 du type annulaire plat. As shown in FIG. 2, in the filters currently known, the outlet pipe 4 is equipped with a centering cup 9 which is fixed to it by a weld II and which supports the filter element 8 with the interposition of a seal d seal 12 of the flat annular type.

Le but dela présente invention est de permettre la #ppression de la coupelle de centrage 9 et, par conséquent, de simplifier la fabrication de ce type de filtre. The purpose of the present invention is to allow the #pressure of the centering cup 9 and, therefore, to simplify the manufacture of this type of filter.

Comme le montre le dessin, l'élément filtrant 8 selon l'invention est du type comprenant un noyau cylindrique 8a en tale perforée entourée de matière filtrante non représentée sur le dessin et qui est elle-môme entourée par un organe cylindrique de protection 8b concentrique au noyau 8a. L'ensemble noyau 8a organe de protection 8b et matière filtrante, est bridé entre deux embouts annulaires, l'un supérieur 13 et l'autre inférieur 14 stemboitant sur les extrémités correspondantes du noyau 8a et de l'organe de protection 8b. As shown in the drawing, the filter element 8 according to the invention is of the type comprising a cylindrical core 8a of perforated plate surrounded by filter material not shown in the drawing and which is itself surrounded by a concentric cylindrical protection member 8b to core 8a. The core 8a protective member 8b and filtering material assembly is clamped between two annular end pieces, one upper 13 and the other lower 14 stemboitant on the corresponding ends of the core 8a and the protective member 8b.

Comme le montre le dessin, au moins l'embout inférieur 14 présente le long d'au moins l'un de ses bords, le long de son bord intérieur dans l'exemple illustré sur le dessin, un retour 14a formant une gorge 14b de section sensiblement semi-cylindrique apte à recevoir un joint torique 15 de section correspondante et dont le diamètre correspond à celui de la tubulure de sortie 4. As shown in the drawing, at least the lower end piece 14 has along at least one of its edges, along its inner edge in the example illustrated in the drawing, a return 14a forming a groove 14b of substantially semi-cylindrical section capable of receiving an O-ring 15 of corresponding section and the diameter of which corresponds to that of the outlet pipe 4.

Comme le montre la figure 1, l'élément filtrant 8 selon l'invention peut être appliqué de manière étanche contre la tubulure de sortie 4 sans qu'il ne soit nécessaire d'équiper préalablement celle-ci d'une coupelle de centrage 9 puisque le joint torique li est apte à s'appliquer directement contre l'extrémité nue de la tubulure de sortie 4. As shown in FIG. 1, the filter element 8 according to the invention can be applied in leaktight manner against the outlet pipe 4 without it being necessary to equip the latter with a centering cup 9 since the O-ring li is able to be applied directly against the bare end of the outlet pipe 4.

Le maintien en position bridée de l'élément filtrant 8 contre la tubulure de sortie 4 est assuré par la vis 5 par l'intermédiaire d'une coupelle de fermeture 16 avec interposition d'un joint annulaire plat 17. The filter element 8 is held in the clamped position against the outlet pipe 4 by the screw 5 by means of a closing cup 16 with the interposition of a flat annular seal 17.

Naturellement, l'embout supérieur 13 pourrait être prévu identique à l'embout inférieur~-14 et la coupelle de fermeture 16 être adapté pour prendre appui sur un joint torique qui serait supporté par l'embout supérieur 13 de la même manière que le joint torique li est supporté par l'embout inférieur 14. Cette disposition n'est cependant pas nécessaire car si elle avait l'avantage de permettre la réalisation d'embouts supérieur 13 et inférieur 14 tous identiques, elle aurait l'inconvénient de ne pas permettre l'installation de cet élément filtrant sur un filtre traditionnel.Comme le montre la figure 2, en conservant un embout supérieur 13 identique aux embouts traditionnels, il est possible d'adapter cet élément filtrant 8 aux filtres traditionnels, c'est-à-dire dont la tubulure de sortie 4 est équipée d'une coupelle de centrage 9. I1 suffit pour cela de placer l'embout 14 muni d'un retour 14a formant la gorge 14b, à l'extrémité supérieure de l'élément filtrant 8 et au contraire l'embout 13 à l'extrémité inférieure de l'élément filtrant 8, de telle sorte que cet embout 13 peut coopérer avec la coupelle de centrage 9 pour assurer le centrage de cet élément filtrant 8 par rapport à l'orifice de sortie 4 de ce filtre. Naturally, the upper end piece 13 could be provided identical to the lower end piece ~ -14 and the closure cup 16 be adapted to bear on an O-ring which would be supported by the upper end piece 13 in the same manner as the seal. toric li is supported by the lower end piece 14. This arrangement is however not necessary because if it had the advantage of allowing the production of upper end pieces 13 and lower end 14 all identical, it would have the disadvantage of not allowing the installation of this filter element on a traditional filter. As shown in FIG. 2, by keeping an upper nozzle 13 identical to the traditional nozzles, it is possible to adapt this filter element 8 to traditional filters, that is to say say whose outlet pipe 4 is equipped with a centering cup 9. It suffices for this to place the end piece 14 provided with a return 14a forming the groove 14b, at the upper end of the filter element 8 and on the contrary the tip 13 at the lower end of the filter element 8, so that this end piece 13 can cooperate with the centering cup 9 to ensure the centering of this filter element 8 relative to the outlet orifice 4 of this filter.

Comme il va de soi, et comme il ressort de ce qui précède, l'invention ne se limite pas à cet élément filtrant qui a été décrit ci-dessus à titre d'exemple non limitatif; elle en embrasse, au contraire, toutes les variantes de réalisation.  As is obvious, and as appears from the above, the invention is not limited to this filter element which has been described above by way of nonlimiting example; on the contrary, it embraces all of its variant embodiments.

Claims (4)

- REVENDICATIONS- CLAIMS 1. - Elément filtrant pour filtre de produits liquides ou gazeux du type comprenant un noyau cylindrique perforé (8a) entouré de matière filtrante elle même entourée par un organe de protection cylindrique (8b), concentrique au noyau (8a), l'ensemble étant bridé entre deux embouts annulaires (13 et 14) dont chacun est emboité sur l'une des extrémités du noyau (8a) et de l'organe de protection (8b), dont l'un (14) est relié à la tubulure de sortie (4) du filtre avec interposition d'un joint d'étanchéité, et dont l'autre est maintenu en place par une coupelle de fermeture (16) elle-même soumise à la pression d'une vis de serrage (5) portée par une traverse (6) prenant appui sur le corps (2) de filtre , caractérisé en ce que embout annulaire (14) destiné à être relié à la tubulure de sortie (g) présente, sur au moins l'un de ses bords intérieur ou extérieur, un retour (14a) formant une gorge (14b) apte à recevoir et loger, au moins partiellement, un joint d'étanchéité (15) destiné à être appliqué contre l'extrémité de la tubulure de sortie (4), le profil de la gorge (14b) étant adapté à celui de la section du joint (15). 1. - Filter element for filtering liquid or gaseous products of the type comprising a perforated cylindrical core (8a) surrounded by filter material itself surrounded by a cylindrical protective member (8b), concentric with the core (8a), the assembly being clamped between two annular end pieces (13 and 14) each of which is fitted onto one of the ends of the core (8a) and of the protective member (8b), one of which (14) is connected to the outlet pipe (4) of the filter with the interposition of a seal, and the other of which is held in place by a closure cup (16) itself subjected to the pressure of a clamping screw (5) carried by a crosspiece (6) bearing on the filter body (2), characterized in that an annular endpiece (14) intended to be connected to the outlet pipe (g) has, on at least one of its inner edges or exterior, a return (14a) forming a groove (14b) capable of receiving and accommodating, at least partially, a seal (15) intended to be applied against the end of the outlet pipe (4), the profile of the groove (14b) being adapted to that of the section of the seal (15). 2. - Elément filtrant selon la revendication 1, caractérisé en ce que la gorge (14b) est sensiblement semi-cylindrique et le joint (15) est torique. 2. - Filter element according to claim 1, characterized in that the groove (14b) is substantially semi-cylindrical and the seal (15) is O-ring. 3. - Elément filtrant selon la revendication 1 ou la revendication 2, caractérisé en ce que les deux embouts (13 et 14) sont identiques. 3. - filter element according to claim 1 or claim 2, characterized in that the two end pieces (13 and 14) are identical. 4. - Elément filtrant selon la revendication 1 et la revendication 2, caractérisé en ce que seul l'un (14) des embouts (13 et 14) est muni d'un retour formant gorge de réception d'un joint tandis que l'autre (13) est de type traditionnel pour coopérer au centrage de l'élément filtrant par rapport à la tubulure de sortie (4) du filtre lorsque celle-ci est équipée d'une coupelle de centrage (9).  4. - filter element according to claim 1 and claim 2, characterized in that only one (14) of the nozzles (13 and 14) is provided with a return forming groove for receiving a seal while the another (13) is of the traditional type for cooperating in centering the filter element with respect to the outlet tube (4) of the filter when the latter is equipped with a centering cup (9).
FR8021088A 1980-09-29 1980-09-29 Renewable cylindrical element in filter for liq. or gas - has integral annular seal for compression joint direct to outlet pipe Pending FR2490969A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8021088A FR2490969A1 (en) 1980-09-29 1980-09-29 Renewable cylindrical element in filter for liq. or gas - has integral annular seal for compression joint direct to outlet pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8021088A FR2490969A1 (en) 1980-09-29 1980-09-29 Renewable cylindrical element in filter for liq. or gas - has integral annular seal for compression joint direct to outlet pipe

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FR2490969A1 true FR2490969A1 (en) 1982-04-02

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541131A1 (en) * 1983-02-21 1984-08-24 Morgan Howard Jun Filter with a removable filter basket
FR2559418A1 (en) * 1984-02-14 1985-08-16 Hehl Karl OIL RESERVOIR EQUIPPED WITH A PLASTIC INJECTION MOLDING MACHINE AND COMPRISING AN AIR FILTER AT THE LEVEL OF A PRESSURE EQUALIZING OPENING
CN102492491A (en) * 2011-11-30 2012-06-13 济南钢铁股份有限公司 Blast-furnace gas and coke oven gas mixed special efficient purification mist capturer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627350A (en) * 1949-01-12 1953-02-03 Wix Accessories Corp Filter cartridge
US3193101A (en) * 1956-11-15 1965-07-06 Wix Corp Fluid by-pass filter with antidrainback valve
US3719281A (en) * 1971-04-12 1973-03-06 Tenneco Inc Multiple application sealing means for fluid filters
US3770127A (en) * 1971-11-04 1973-11-06 Filters Int Inc Cartridge-type filter element and housing therefor
DE2411692A1 (en) * 1973-03-13 1974-09-19 Lucas Aerospace Ltd LIQUID FILTER
FR2294734A1 (en) * 1974-12-19 1976-07-16 Daimler Benz Ag FILTER BODY INTENDED FOR THE MOUNTING OF AT LEAST ONE FILTER ELEMENT FOR LUBRICATING OIL

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627350A (en) * 1949-01-12 1953-02-03 Wix Accessories Corp Filter cartridge
US3193101A (en) * 1956-11-15 1965-07-06 Wix Corp Fluid by-pass filter with antidrainback valve
US3719281A (en) * 1971-04-12 1973-03-06 Tenneco Inc Multiple application sealing means for fluid filters
US3770127A (en) * 1971-11-04 1973-11-06 Filters Int Inc Cartridge-type filter element and housing therefor
DE2411692A1 (en) * 1973-03-13 1974-09-19 Lucas Aerospace Ltd LIQUID FILTER
FR2294734A1 (en) * 1974-12-19 1976-07-16 Daimler Benz Ag FILTER BODY INTENDED FOR THE MOUNTING OF AT LEAST ONE FILTER ELEMENT FOR LUBRICATING OIL

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541131A1 (en) * 1983-02-21 1984-08-24 Morgan Howard Jun Filter with a removable filter basket
FR2559418A1 (en) * 1984-02-14 1985-08-16 Hehl Karl OIL RESERVOIR EQUIPPED WITH A PLASTIC INJECTION MOLDING MACHINE AND COMPRISING AN AIR FILTER AT THE LEVEL OF A PRESSURE EQUALIZING OPENING
CN102492491A (en) * 2011-11-30 2012-06-13 济南钢铁股份有限公司 Blast-furnace gas and coke oven gas mixed special efficient purification mist capturer

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