FR2494594A1 - Rigid cage for supporting fabric filters for swimming pool waters etc. - pref. polymer coated for protection against corrosion - Google Patents
Rigid cage for supporting fabric filters for swimming pool waters etc. - pref. polymer coated for protection against corrosion Download PDFInfo
- Publication number
- FR2494594A1 FR2494594A1 FR8025105A FR8025105A FR2494594A1 FR 2494594 A1 FR2494594 A1 FR 2494594A1 FR 8025105 A FR8025105 A FR 8025105A FR 8025105 A FR8025105 A FR 8025105A FR 2494594 A1 FR2494594 A1 FR 2494594A1
- Authority
- FR
- France
- Prior art keywords
- tubes
- protection against
- swimming pool
- pref
- frame
- 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- Withdrawn
Links
- 239000004744 fabric Substances 0.000 title abstract description 8
- 230000007797 corrosion Effects 0.000 title abstract description 4
- 238000005260 corrosion Methods 0.000 title abstract description 4
- 230000009182 swimming Effects 0.000 title abstract description 3
- 229920000642 polymer Polymers 0.000 title 1
- 239000003643 water by type Substances 0.000 title 1
- 125000006850 spacer group Chemical group 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 3
- 239000000470 constituent Substances 0.000 claims 1
- 239000006223 plastic coating Substances 0.000 claims 1
- 230000001681 protective effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 3
- 239000004743 Polypropylene Substances 0.000 abstract description 2
- -1 polypropylene Polymers 0.000 abstract description 2
- 229920001155 polypropylene Polymers 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 description 3
- 241000206761 Bacillariophyta Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
Abstract
Description
La présente invention concerne une armature pour bougies filtrantes , laquelle est destinée à eous- tituer le support d'un élément filtrant tel qu'une toile sur laquelle est appliquée une couche de diatomées. The present invention relates to a frame for filter candles, which is intended to replace the support of a filter element such as a canvas on which a layer of diatoms is applied.
On utilise couramment, pour la filtration de l'eau des piscines, des bougies filtrantes qui comportent à l'intérieur, une armature cylindrique fermée à une extrémité et ouverte à l'autre, armature sur laquelle s'applique une toile filtrante. Filter candles are commonly used for the filtration of swimming pool water, which have inside a cylindrical frame closed at one end and open at the other, frame on which a filter cloth is applied.
Les bougies filtrantes de ce genre connues jusqu'à ce jour n'ont pas donné toute satisfaction car il arrive très souvent que, sous l'effet de la très forte pression différentielle qui s'exerce des deux côtés de la toile filtrante, l'armature casse, ce qui entraine des changements fréquents des bougies. Filter candles of this kind known to date have not been entirely satisfactory because it very often happens that, under the effect of the very high differential pressure exerted on both sides of the filter cloth, frame breaks, resulting in frequent candle changes.
La présente invention vise à remédier à cet inconvénient en procurant une armature très robuste, résistante à des pressions différentielles élevées et d'un faible prix de revient. The present invention aims to remedy this drawback by providing a very robust armature, resistant to high differential pressures and a low cost price.
A cet effet cette armature pour bougies filtrantes destinée à constituer le support d'un élément filtrant tel qu'une toile, est caractérisée en ce qu'elle comprend une pluralité de tubes longitudinaux répartis régulièrement autour de l'axe de l'armature et dont les extrémités sont engagées d'un coté dans un couvercle étanche et de l'autre côté dans un anneau support, et au moins une entretoise annulaire percée de trous traversés par les tubes et disposée entre le couvercle et l'anneau support prévus aux extrémités. To this end, this frame for filter candles intended to constitute the support for a filter element such as a canvas, is characterized in that it comprises a plurality of longitudinal tubes distributed regularly around the axis of the frame and of which the ends are engaged on one side in a sealed cover and on the other side in a support ring, and at least one annular spacer pierced with holes through which the tubes pass and disposed between the cover and the support ring provided at the ends.
Suivant une caractéristique complémentaire, l'ensemble de l'armature constituée par les tubes longitudinaux parallèles, la ou les entretoises annulaires, le couvercle et l'anneau support d'extrémit , est recouvert en totalité de matière plastique pour protéger l'armature contre la corrosion. According to an additional characteristic, the whole of the reinforcement constituted by the parallel longitudinal tubes, the annular spacer (s), the cover and the end support ring, is entirely covered with plastic material to protect the reinforcement against corrosion.
On décrira ci-après, à titre d'exemple non limitatif , une forme d'exécutionde la présente in vention en référence au dessin annexé sur lequel
La figure 1 est une vue en perspective d'une armature pour bougies filtrantes suivant l'inven- tion.An embodiment of the present invention will be described below, by way of non-limiting example, with reference to the attached drawing in which
FIG. 1 is a perspective view of a frame for filter candles according to the invention.
La figure 2 est une vue en coupe axiale, à plus grande échelle, de L'armature. Figure 2 is an axial sectional view, on a larger scale, of the frame.
La figure 3 est une vue en coupe transver- sale de l'armature faite suivant la ligne IIS-III de la figure 1. Figure 3 is a cross-sectional view of the reinforcement taken along the line IIS-III of Figure 1.
L'armature pour bougies filtrantes qui est représentée sur le dessin comporte une pluralité de tubes métalliques longitudinaux 1,de meme longueur, lesquels sont répartis régulièrement autour de l'axe de l'armature.A l'une de leurs extrémités ces tubes 1 sont engagés dans des trous bornes 2 qui sont percés dans un couvercle étanche 3. Les trous 2 sont répartis régulièrement autour de l'axe du couvercle 3 et leur nombre est égal à celui des tubes i. Ces trous 2 ont des diamètres correspondant à ceux des tubes i et leurs axes sont parallèles à l'axe de l'armature. Ils débouchent dans la face frontale interne 4 du couvercle 3, lequel est en forme de cloche et présente un évidement central 5.Le couvercle 3 présente dans sa surface latérale une gorge 6 dans laquelle peut être ancrée une extrémité d'une toile filtrante 7 placée sur l'armature. The frame for filter candles which is shown in the drawing comprises a plurality of longitudinal metal tubes 1, of the same length, which are distributed regularly around the axis of the frame. At one of these ends these tubes 1 are engaged in terminal holes 2 which are drilled in a sealed cover 3. The holes 2 are distributed regularly around the axis of the cover 3 and their number is equal to that of the tubes i. These holes 2 have diameters corresponding to those of the tubes i and their axes are parallel to the axis of the frame. They open into the internal front face 4 of the cover 3, which is bell-shaped and has a central recess 5. The cover 3 has in its lateral surface a groove 6 in which can be anchored one end of a filter cloth 7 placed on the frame.
À leurs extrémités opposées, les tubes 1 sont engagés dans un anneau support 8 et plus particulièrement dans des trous borgnes 9 qui sont répartis régulièrement autour de l'axe 10:': urinal. Ces trous borgnes 9 débouchent dans la face frontale interne 11 de l'anneau 8 et ils sont en nombre égal à celui des tubes 1. L'anneau support 8 présente également dans sa surface latérale une gorge 12 servant à l'ancrage de la toile filtrante 7. At their opposite ends, the tubes 1 are engaged in a support ring 8 and more particularly in blind holes 9 which are distributed regularly around the axis 10: ': urinal. These blind holes 9 open into the internal front face 11 of the ring 8 and they are equal in number to that of the tubes 1. The support ring 8 also has in its lateral surface a groove 12 used for anchoring the fabric filter 7.
L'ensemble des tubes longitudinaux 1, du couvercle 3 et de l'anneau 8 forme en quelque sorte une cage cylindrique à barreaux longitudinaux, fermée à une extrémité et ouverte à son autre extrémité. The set of longitudinal tubes 1, cover 3 and ring 8 forms a sort of cylindrical cage with longitudinal bars, closed at one end and open at its other end.
Pour assurer le maintien des tubes 1 constituant les barreaux de cette cage, il est prévu au moins une entretoise annulaire 13, laquelle est percée de trous 14 répartis régulièrement autour de l'axe. Les tubes 1 traversent ainsi les trous 13 et sont soutenus sur leur longueur par la ou les entretoises annulaires 13. Le nombre de ces entretoises annulaires est fonction du diamètre
et de la longueur de la bougie filtrante et de la pression différentielle qui doit etre# encaissée. To maintain the tubes 1 constituting the bars of this cage, there is provided at least one annular spacer 13, which is pierced with holes 14 distributed regularly around the axis. The tubes 1 thus pass through the holes 13 and are supported along their length by the annular spacer (s) 13. The number of these annular spacers depends on the diameter
and the length of the filter plug and the differential pressure that must be # collected.
On voit d'après ce qui précède que la toile filtrante 7 est soutenue d'une manière ferme sur toute sa longueur et que l'armature ainsi réalisée est particulièrement robuste. We see from the above that the filter cloth 7 is supported in a firm manner over its entire length and that the frame thus produced is particularly robust.
Une fois l'armature ainsi montée, on la plastifie avantage-sement dans sa totalité de manière à la protéger l'égard de la corrosion. Once the armature thus mounted, it is plasticized advantageously in its entirety so as to protect it from corrosion.
Du fait que l'armature est constituée de tubes 1, il n'existe pas d'angle lisse dans l'armature et on ne risque pas de causer des dommages à la toile filtrante 7. Because the frame consists of tubes 1, there is no smooth angle in the frame and there is no risk of causing damage to the filter cloth 7.
L'élément filtrant qui est monté sur l'armature décrite ci-dessus peut être constitué par un manchon en tissage tubulaire de fils de polypropylène ou toute autre matière appropriée teinte en noir dans la masse pour éviter tout vieillissement dû au rayonnement lumineux et notamment aux rayons ultraviolets. The filter element which is mounted on the frame described above may be constituted by a tubular woven sleeve of polypropylene threads or any other suitable material dyed black in the mass to prevent any aging due to light radiation and in particular to ultraviolet rays.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8025105A FR2494594A1 (en) | 1980-11-26 | 1980-11-26 | Rigid cage for supporting fabric filters for swimming pool waters etc. - pref. polymer coated for protection against corrosion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8025105A FR2494594A1 (en) | 1980-11-26 | 1980-11-26 | Rigid cage for supporting fabric filters for swimming pool waters etc. - pref. polymer coated for protection against corrosion |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2494594A1 true FR2494594A1 (en) | 1982-05-28 |
Family
ID=9248369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8025105A Withdrawn FR2494594A1 (en) | 1980-11-26 | 1980-11-26 | Rigid cage for supporting fabric filters for swimming pool waters etc. - pref. polymer coated for protection against corrosion |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2494594A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2565133A1 (en) * | 1984-06-04 | 1985-12-06 | Liagre Jean | Screening machine for the separation of solid particles contained in a liquid |
EP0426611A2 (en) * | 1989-10-31 | 1991-05-08 | Carlo Riva | Device for the rapid fastening and unfastening of tubular filtering fabrics |
US5223134A (en) * | 1989-10-31 | 1993-06-29 | Carlo Riva | Device for the rapid fastening and unfastening of tubular filtering fabrics |
-
1980
- 1980-11-26 FR FR8025105A patent/FR2494594A1/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2565133A1 (en) * | 1984-06-04 | 1985-12-06 | Liagre Jean | Screening machine for the separation of solid particles contained in a liquid |
EP0426611A2 (en) * | 1989-10-31 | 1991-05-08 | Carlo Riva | Device for the rapid fastening and unfastening of tubular filtering fabrics |
EP0426611A3 (en) * | 1989-10-31 | 1991-10-09 | Carlo Riva | Device for the rapid fastening and unfastening of tubular filtering fabrics |
US5223134A (en) * | 1989-10-31 | 1993-06-29 | Carlo Riva | Device for the rapid fastening and unfastening of tubular filtering fabrics |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |