WO2002034353A1 - Screening grid for separating cleaning particles from a fluid and device comprising same - Google Patents

Screening grid for separating cleaning particles from a fluid and device comprising same Download PDF

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Publication number
WO2002034353A1
WO2002034353A1 PCT/FR2001/003124 FR0103124W WO0234353A1 WO 2002034353 A1 WO2002034353 A1 WO 2002034353A1 FR 0103124 W FR0103124 W FR 0103124W WO 0234353 A1 WO0234353 A1 WO 0234353A1
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WO
WIPO (PCT)
Prior art keywords
grid
fluid
filtration
fixing
lamellae
Prior art date
Application number
PCT/FR2001/003124
Other languages
French (fr)
Inventor
André Marcel Henri LEMOINE
Original Assignee
Technos Et Compagnie
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 Technos Et Compagnie filed Critical Technos Et Compagnie
Priority to AU2001295675A priority Critical patent/AU2001295675A1/en
Priority to EP01976388A priority patent/EP1333903A1/en
Publication of WO2002034353A1 publication Critical patent/WO2002034353A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • F28G1/12—Fluid-propelled scrapers, bullets, or like solid 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
    • B01D29/01—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 flat filtering elements
    • B01D29/05—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 flat filtering elements supported
    • 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
    • B01D29/445—Bar screens
    • 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
    • B01D29/50—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 multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—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 multiple filtering elements, characterised by their mutual disposition in parallel connection
    • 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
    • B01D29/70—Regenerating the filter material in the filter by forces created by movement of the filter element
    • 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
    • B01D29/904—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 directing the mixture to be filtered on the filtering element in a manner to clean the filter continuously
    • 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
    • B01D29/94—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 discharging the filter cake, e.g. chutes
    • B01D29/945—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 discharging the filter cake, e.g. chutes for continuously discharging concentrated liquid
    • 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
    • B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/40—Special measures for connecting different parts of the filter
    • B01D2201/4084—Snap or Seeger ring connecting means

Definitions

  • the present invention relates, on the one hand, to a separation grid for separating cleaning bodies from a fluid and, on the other hand, to a device comprising such a separation grid.
  • the invention relates to a separation grid used to separate, from the fluid which transports them, cleaning bodies coming from a condenser.
  • the condenser is formed by a plurality of tubes inside which circulates the fluid which transports the cleaning bodies responsible for stripping the internal walls of said tubes in order to avoid their fouling by the deposit of impurities circulating in said fluid.
  • the separation grid is placed obliquely across a condenser outlet pipe by means of a pivot axis, so that the grid is traversed by the fluid by stopping the cleaning bodies which are guided on said grid up to a collector.
  • the separation grids comprise a plurality of parallel and equidistant longitudinal reinforcements which are connected to each other by crosspieces.
  • the grids also include a plurality of bars parallel to the longitudinal reinforcement and which are spaced from one another and said reinforcements by means of spacer elements which allow the bars to be separated from one another by a distance less than the smallest overall dimension of the cleaning bodies. These spacer elements and said bars are also crossed by the sleepers.
  • the separation grid placed in the pipe having a diameter between, for example, 0.7 m and 3.8 m, it is understood that the replacement of one of the bars of the filtration network, by an operator, then requires remove the grid from the pipe, which in particular involves very long downtimes in the filtration system, and the corresponding fluid circuit, or even the cooling unit.
  • the object of the present invention is to remedy the problems mentioned above.
  • the subject of the invention is a separation grid for separating, from the fluid which transports them, cleaning bodies coming from a condenser, said grid comprising, on the one hand, a plurality of equidistant parallel longitudinal reinforcements connected between them by crosspieces and, on the other hand, a pivot axis perpendicular to said longitudinal reinforcements, the pivot axis being intended to allow the pivoting of said grid in a condenser outlet pipe, characterized in that it comprises, in addition, a plurality of rigid filter elements removably mounted between said longitudinal frames. Thanks to these provisions, it is easy to replace a filtration element without having to dismantle the entire grid. Furthermore, this simple replacement operation can be carried out directly by an operator who slides into the pipe having a human-sized diameter, thus avoiding the withdrawal of the separation grid from the condenser outlet pipe.
  • each filtration element comprises, on the one hand, a plurality of lamellae parallel to the rigid blades, and on the other hand, spacers connecting between them said lamellae, each filtration element further comprising two fixing cheeks perpendicular to the pivot axis and fixed laterally in a removable manner on two adjacent blades of the grid;
  • the two fixing cheeks of each filtration element are parallel to the lamellae and they each comprise a downstream portion which extends beyond said lamellae and on which windows are made suitable for forming, with corresponding windows of a another filtration element, housings cooperating with removable fixing means connected to the rigid blades of the grid;
  • each filtration element has upstream edges contained in the same guide plane to guide the cleaning bodies;
  • the rigid blades have openings arranged in line with the windows of the filtration elements and the removable fixing means comprise a screw / nut system for connecting said filtration elements to the blades of the grid;
  • Each fixing cheek extends longitudinally between first and second ends which are each provided with interlocking means, adapted to cooperate with corresponding interlocking means with another filtration element, to allow correct positioning of the elements filtration aligned between two adjacent rigid blades of the grid;
  • the means for nesting the first ends are formed by shoulders arranged facing each other and the means for nesting the second ends are formed by shoulders arranged away from each other, the shoulders of the first ends being each provided two distinct grooves of different lengths intended to cooperate by clipping with two ribs of complementary shape made on the shoulders disposed away from another filter element;
  • each filtration element is each provided with a longitudinal rib intended to rest on the rigid blade of said grid which is associated with it;
  • the filtration elements are made of synthetic material
  • the filtration elements are made of a material based on polyphenylene ether.
  • the subject of the invention is also a grid device for separating, from the fluid which transports them, cleaning bodies emerging with this fluid from a condenser, the device comprising a grid, as defined above, which is mounted obliquely across a condenser outlet pipe so that said grid is traversed by the fluid by stopping the cleaning bodies which are guided on said grid up to a collector evacuating the cleaning bodies separated from the fluid.
  • FIGS. 1 and 2 respectively show an axial sectional view and a side view of a separation grid, according to the invention, arranged in a pipe;
  • FIG. 3 shows a sectional view along line III-III of Figure 4 of a filter element of the separation grid
  • FIG. 5 represents an enlarged sectional view along the line V-V of FIG. 4,
  • FIG. 6 shows a sectional view of the means for fixing the filtration elements to the separation grid.
  • FIG. 1 represents a separation grid 1 mounted across a section of an outlet pipe 2 of a condenser (not shown) of an energy producing factory.
  • the condenser is formed by a plurality of heat exchanger tubes in which a fluid circulates which then passes into the outlet pipe 1.
  • the circulation of fluid is represented diagrammatically by the arrows F.
  • This fluid carries with it cleaning bodies 3 preferably, but not necessarily, made up of balls of elastic material whose diameter is slightly greater to that of the condenser tubes to be cleaned.
  • the separation grid 1 is arranged obliquely with respect to the axis of the section of the pipe 1 so as to allow the fluid F to pass through it while stopping the cleaning bodies 3 by means of its filtration network.
  • the grid 1 is pivotally mounted around a pivot axis 4 which extends substantially perpendicular to the axis of the pipe 1, which makes it possible to periodically reverse the upstream and downstream faces of the filtration network of this grid. and therefore automatically clean this network.
  • the outlet pipe 1 can also comprise two separating grids pivotally mounted, each around a pivot axis, the two grids then substantially forming a funnel, inverted or not with respect to the direction of circulation fluid.
  • the outlet pipe may comprise four separation grids mounted in the form of inverted or not with respect to the direction of circulation of said fluid.
  • the separation grid 1 comprises a plurality of longitudinal reinforcements 5 perpendicular to the pivot axis 4 and crosspieces 6 parallel to the pivot axis 4 while being perpendicular to the longitudinal reinforcements 5. Longitudinal reinforcement is separated by a distance constant between them while being connected by means of crosspieces 6.
  • Each longitudinal reinforcement 5 is in the form of a rigid blade 5 situated in a plane perpendicular to the pivot axis 4 and it comprises a flat upper edge 51 and a lower edge 52 of substantially triangular shape as can be seen on the Figure 1.
  • the rigid blades 5 are connected to the crosspieces 6 by their lower portion. All of the upper and lower parts of the different elements described in the following description are called respectively upstream and downstream parts in relation to the direction of flow of the fluid represented by the arrows F, in the normal position of use of the wire rack.
  • the separating grid 1 comprises a plurality of filtration elements 8 which are housed in longitudinal corridors 7 delimited by the rigid blades 5 adjacent, these filtration elements being removably mounted on said blades 5.
  • FIGS. 3 to 5 An exemplary embodiment of these filtration elements is shown in FIGS. 3 to 5.
  • Each filtration element 8 comprises a plurality of lamellae 9 parallel to the rigid blades 5 of the separation grid 1 and spacers 10 which connect the lamellae 9 to each other.
  • the spacers 10 extend substantially parallel to the pivot axis 4 and their lateral ends are interconnected by fixing cheeks 11 arranged parallel to the longitudinal strips.
  • the lamellae 9, the spacers 10 and the fixing cheeks 11 of each filter element 8 are formed in one piece made of synthetic material.
  • Each filtration element 8 can be made, for example, of a material based on polyphenylene ether.
  • the blades 9 have upstream edges 91 contained in the same guide plane P and downstream edges 92 which are also contained in the same plane.
  • the guide plane P common to all the filtration elements, is inclined relative to the axis of the section of the outlet pipe 1 ( Figure 1), so that the cleaning bodies 3 are guided on said "filtration elements or more precisely on the longitudinal strips 9 and are driven by the fluid F to a collector 2A.
  • the spacers 10 for their part, have upstream edges 101 situated approximately at the level of the middle part of the lamellae 9 and downstream edges 102 which are contained in the same plane as the downstream edges 92 of said lamellae 9 .
  • the fixing cheeks 11, which laterally delimit each filtration element 8, also have an upstream edge 111 contained in the guide plane P and a downstream portion 112 which extends beyond the downstream edges 92 slats 9.
  • the downstream portions 112 of the fixing cheeks 11 of the same filtration element comprise windows 12, for example three in number, which are adapted to form, with corresponding windows 12 of another adjacent filter element 8, housings cooperating with removable fixing means connected to the rigid blades 5 of the grid 1.
  • removable fixing means shown in FIG. 6 can be formed, for example, by a screw / nut system 13, 14 adapted for each window 12.
  • a head screw 13 is disposed in the housing formed by a through opening 51 made on the rigid blade 5 and through the windows 12 facing two filtration elements 8, the head of the screw 13 coming to bear against one of the cheeks 11 of a filtration element 8, and the nut 14 which cooperates with the screw 13 bearing against the fixing cheek 11 of the other filter element.
  • the fixing cheeks 11 may also have on their external face 113 a longitudinal rib 15 intended to rest on the upstream edge of the rigid blades 5 of the separation grid 1 during the installation of the filtration elements 8. These ribs longitudinal 15 thus make it possible to position the different filtration elements 8 on the adjacent blades 5 in a simple and effective manner so that the upstream edges 91 of the lamellae 9 are all contained in the same guide plane P.
  • the ends 11A, 11B of the fixing cheeks 11 can also be provided with fitting means adapted to cooperate with corresponding fitting means of another filter element aligned between the same adjacent rigid blades 5.
  • the ends 11A and 11B of the fixing cheeks 11 extend beyond the longitudinal ends of the strips 9 and the interlocking means are formed by shoulders 16, 17 made respectively on the external 113 and internal 114 faces of the ends 11A and 11B of each of the fixing cheeks 11.
  • the shoulders 16 of the ends 11A are arranged at a distance from each other and the shoulders 17 of the ends 11B of the fixing cheeks 11 are arranged opposite.
  • the shoulders 16 are provided with two distinct ribs 16A and 16B and of different lengths which are intended to cooperate respectively with two grooves 17A and 17B of complementary shape made on the shoulders 17 of the ends 11B of the fixing cheeks 11 of a another filter element disposed between the same rigid blades 5 adjacent.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtration Of Liquid (AREA)
  • Cyclones (AREA)

Abstract

.The invention concerns a screening grid (1) for separating, from a fluid carrying them, cleaning particles (3) of a condenser of a power generating plant, said grid comprising a plurality of equidistant parallel longitudinal frames (5) interconnected by crosspieces (6) and a pivot pin (4) designed to enable said grid to pivot in an outlet duct of a condenser. The invention is characterised in that the grid further comprises a plurality of rigid filtering elements (8) mounted removable between said longitudinal frames.

Description

GRILLE DE SEPARATION POUR SEPARER DES CORPS NETTOYANTS D'UN FLUIDE ET DISPOSITIF COMPRENANT UNE TELLE GRILLE SEPARATION GRID FOR SEPARATING CLEANING BODIES FROM A FLUID AND DEVICE COMPRISING SUCH A GRID
La présente invention se rapporte, d'une part, à une grille de séparation pour séparer des corps nettoyants d'un fluide et, d'autre part, à un dispositif comprenant une telle grille de séparation.The present invention relates, on the one hand, to a separation grid for separating cleaning bodies from a fluid and, on the other hand, to a device comprising such a separation grid.
Plus particulièrement, l'invention concerne une grille de séparation utilisée pour séparer, du fluide qui les transporte, des corps nettoyants provenant d'un condenseur. De manière connue en soi, le condenseur est formé par une pluralité de tubes à l'intérieur desquels circule le fluide qui transporte les corps nettoyants chargés de décaper les parois internes desdits tubes afin d'éviter leur encrassement par le dépôt d'impuretés circulant dans ledit fluide.More particularly, the invention relates to a separation grid used to separate, from the fluid which transports them, cleaning bodies coming from a condenser. In a manner known per se, the condenser is formed by a plurality of tubes inside which circulates the fluid which transports the cleaning bodies responsible for stripping the internal walls of said tubes in order to avoid their fouling by the deposit of impurities circulating in said fluid.
Lorsque les corps nettoyants sortent des tubes avec le fluide qui les entraîne, il est alors nécessaire de séparer les corps nettoyants dudit fluide afin de les récupérer et de les diriger à nouveau vers l'entrée des tubes formant le condenseur.When the cleaning bodies leave the tubes with the fluid which drives them, it is then necessary to separate the cleaning bodies from said fluid in order to recover them and to direct them again towards the inlet of the tubes forming the condenser.
Δ cet effet, la grille de séparation est placée obliquement en travers d' une conduite de sortie du condenseur au moyen d'un axe pivot, de sorte que la grille est traversée par le fluide en arrêtant les corps nettoyants qui sont guidés sur ladite grille jusqu'à un collecteur.Δ for this purpose, the separation grid is placed obliquely across a condenser outlet pipe by means of a pivot axis, so that the grid is traversed by the fluid by stopping the cleaning bodies which are guided on said grid up to a collector.
Les grilles de séparation, connues jusqu'à présent, comprennent une pluralité d'armatures longitudinales parallèles et équidistantes qui sont reliées entre elles par des traverses. Les grilles comprennent également une pluralité de barreaux parallèles aux armatures longitudinales et qui sont écartés l'un de l'autre et desdites armatures au moyen d'éléments ecarteurs qui permettent de séparer les barreaux entre eux d'une distance inférieure à la plus petite dimension hors-tout des corps nettoyants . Ces éléments ecarteurs et lesdits barreaux sont également traversés par les traverses. Ainsi, lorsque l'un des barreaux du réseau de filtration de la grille est endommagé, on comprend qu'il est alors nécessaire de démonter entièrement la grille ou du moins l'ensemble des barreaux et des éléments ecarteurs adjacents pour pouvoir remplacer le barreau endommagé. La grille de séparation placée dans la conduite ayant un diamètre compris entre, par exemple, 0,7 m et 3,8 m, on comprend que le remplacement de l'un des barreaux du réseau de filtration, par un opérateur, nécessite alors de retirer la grille hors de la conduite, ce qui implique notamment des temps d'arrêt très importants du système de filtration, et du circuit de fluide correspondant, voir même de l'unité de refroidissement.The separation grids, known up to now, comprise a plurality of parallel and equidistant longitudinal reinforcements which are connected to each other by crosspieces. The grids also include a plurality of bars parallel to the longitudinal reinforcement and which are spaced from one another and said reinforcements by means of spacer elements which allow the bars to be separated from one another by a distance less than the smallest overall dimension of the cleaning bodies. These spacer elements and said bars are also crossed by the sleepers. Thus, when one of the bars of the grid filtration network is damaged, it is understood that it is then necessary to completely dismantle the grid or at least all of the bars and adjacent spacer elements in order to be able to replace the damaged bar. . The separation grid placed in the pipe having a diameter between, for example, 0.7 m and 3.8 m, it is understood that the replacement of one of the bars of the filtration network, by an operator, then requires remove the grid from the pipe, which in particular involves very long downtimes in the filtration system, and the corresponding fluid circuit, or even the cooling unit.
La présente invention a pour but de remédier aux problèmes cités ci-dessus.The object of the present invention is to remedy the problems mentioned above.
A cet effet, l'invention a pour objet une grille de séparation pour séparer, du fluide qui les transporte, des corps nettoyants provenant d'un condenseur, ladite grille comprenant, d'une part, une pluralité d'armatures longitudinales parallèles équidistantes reliées entre elles par des traverses et, d'autre part, un axe pivot perpendiculaire aux dites armatures longitudinales, l'axe pivot étant destiné à permettre le pivotement de ladite grille dans une conduite de sortie du condenseur, caractérisée en ce qu'elle comprend, en outre, une pluralité d'éléments de filtration rigides montés de manière amovible entre lesdites armatures longitudinales. Grâce à ces dispositions, on peut aisément remplacer un élément de filtration sans avoir à démonter l'ensemble de la grille. Par ailleurs, cette simple opération de remplacement peut être directement effectuée par un opérateur qui se glisse dans la conduite ayant un diamètre à taille humaine en évitant ainsi le retrait de la grille de séparation hors de la conduite de sortie du condenseur.To this end, the subject of the invention is a separation grid for separating, from the fluid which transports them, cleaning bodies coming from a condenser, said grid comprising, on the one hand, a plurality of equidistant parallel longitudinal reinforcements connected between them by crosspieces and, on the other hand, a pivot axis perpendicular to said longitudinal reinforcements, the pivot axis being intended to allow the pivoting of said grid in a condenser outlet pipe, characterized in that it comprises, in addition, a plurality of rigid filter elements removably mounted between said longitudinal frames. Thanks to these provisions, it is easy to replace a filtration element without having to dismantle the entire grid. Furthermore, this simple replacement operation can be carried out directly by an operator who slides into the pipe having a human-sized diameter, thus avoiding the withdrawal of the separation grid from the condenser outlet pipe.
Dans des formes de réalisation préférées de l'invention, on a recours, en outre, à l'une et/ou à l'autre des dispositions suivantes :In preferred embodiments of the invention, use is made of one and / or the other of the following arrangements:
- les armatures longitudinales sont des lames rigides situées dans des plans perpendiculaires à l'axe pivot, et chaque élément de filtration comprend, d'une part, une pluralité de lamelles parallèles aux lames rigides, et d'autre part, des entretoises reliant entre elles lesdites lamelles, chaque élément de filtration comportant, en outre, deux joues de fixation perpendiculaires à l'axe pivot et fixées latéralement de manière amovible sur deux lames adjacentes de la grille ; - les deux joues de fixation de chaque élément de filtration sont parallèles aux lamelles et elles comportent chacune une portion d'aval qui s'étend au delà desdites lamelles et sur laquelle sont réalisées des fenêtres adaptées pour former, avec des fenêtres correspondantes d'un autre élément de filtration, des logements coopérant avec des moyens de fixation amovibles reliés aux lames rigides de la grille ;- the longitudinal reinforcements are rigid blades located in planes perpendicular to the pivot axis, and each filtration element comprises, on the one hand, a plurality of lamellae parallel to the rigid blades, and on the other hand, spacers connecting between them said lamellae, each filtration element further comprising two fixing cheeks perpendicular to the pivot axis and fixed laterally in a removable manner on two adjacent blades of the grid; - The two fixing cheeks of each filtration element are parallel to the lamellae and they each comprise a downstream portion which extends beyond said lamellae and on which windows are made suitable for forming, with corresponding windows of a another filtration element, housings cooperating with removable fixing means connected to the rigid blades of the grid;
- les lamelles et les joues de fixation de chaque élément de filtration comportent des bords d'amont contenus dans un même plan de guidage pour guider les corps nettoyants ; - les lames rigides comportent des ouvertures disposées au droit des fenêtres des éléments de filtration et les moyens de fixation amovibles comprennent un système de vis/écrou pour relier lesdits éléments de filtration aux lames de la grille ;- The lamellae and the fixing cheeks of each filtration element have upstream edges contained in the same guide plane to guide the cleaning bodies; - The rigid blades have openings arranged in line with the windows of the filtration elements and the removable fixing means comprise a screw / nut system for connecting said filtration elements to the blades of the grid;
- chaque joue de fixation s'étend longitudinalement entre des première et deuxième extrémités qui sont chacune pourvues de moyens d'emboîtement, adaptés pour coopérer avec des moyens d'emboîtement correspondants d'un autre élément de filtration, pour permettre un positionnement correcte des éléments de filtration alignés entre deux lames rigides adjacentes de la grille ;- Each fixing cheek extends longitudinally between first and second ends which are each provided with interlocking means, adapted to cooperate with corresponding interlocking means with another filtration element, to allow correct positioning of the elements filtration aligned between two adjacent rigid blades of the grid;
- les moyens d' emboîtement des premières extrémités sont formés par des épaulements disposés en regard et les moyens d'emboîtement des deuxièmes extrémités sont formés par des épaulements disposés en éloignement l'un de l'autre, les épaulements des premières extrémités étant chacun pourvus de deux rainures distinctes de longueurs différentes destinées à coopérer par clipsage avec deux nervures de forme complémentaire réalisées sur les épaulements disposées en éloignement d'un autre élément filtrant ;- The means for nesting the first ends are formed by shoulders arranged facing each other and the means for nesting the second ends are formed by shoulders arranged away from each other, the shoulders of the first ends being each provided two distinct grooves of different lengths intended to cooperate by clipping with two ribs of complementary shape made on the shoulders disposed away from another filter element;
- les deux joues de fixation de chaque élément de filtration sont chacune pourvues d'une nervure longitudinale destinée à reposer sur la lame rigide de ladite grille qui lui est associée ;- The two fixing cheeks of each filtration element are each provided with a longitudinal rib intended to rest on the rigid blade of said grid which is associated with it;
- les éléments de filtration sont réalisés en matière synthétique ;- the filtration elements are made of synthetic material;
- les éléments de filtration sont réalisés en un matériau à base de polyphénylène éther. Par ailleurs, l'invention a également pour objet un dispositif à grille pour séparer, du fluide qui les transporte, des corps nettoyants sortant avec ce fluide d'un condenseur, le dispositif comprenant une grille, telle que définie ci-dessus, qui est montée obliquement en travers d'une conduite de sortie du condenseur de sorte que ladite grille est traversée par le fluide en arrêtant les corps nettoyants qui sont guidés sur ladite grille jusqu'à un collecteur évacuant les corps nettoyants séparés du fluide.- the filtration elements are made of a material based on polyphenylene ether. Furthermore, the subject of the invention is also a grid device for separating, from the fluid which transports them, cleaning bodies emerging with this fluid from a condenser, the device comprising a grid, as defined above, which is mounted obliquely across a condenser outlet pipe so that said grid is traversed by the fluid by stopping the cleaning bodies which are guided on said grid up to a collector evacuating the cleaning bodies separated from the fluid.
D'autres caractéristiques et avantages de l'invention apparaîtront au cours de la description qui va suivre de l'une de ses formes de réalisation, donnée à titre d'exemple non limitatif, en regard des dessins joints. Sur les dessins :Other characteristics and advantages of the invention will appear during the following description of one of its embodiments, given by way of non-limiting example, with reference to the accompanying drawings. In the drawings:
- les figures 1 et 2 représentent respectivement une vue en coupe axiale et une vue latérale d'une grille de séparation, conforme à l'invention, disposée dans une conduite ;- Figures 1 and 2 respectively show an axial sectional view and a side view of a separation grid, according to the invention, arranged in a pipe;
- la figure 3 représente une vue en coupe selon la ligne III-III de la figure 4 d'un élément de filtration de la grille de séparation ;- Figure 3 shows a sectional view along line III-III of Figure 4 of a filter element of the separation grid;
- la figure 4 représente une vue de dessus de l'élément de filtration ;- Figure 4 shows a top view of the filter element;
- la figure 5 représente une vue en coupe agrandie selon la ligne V-V de la figure 4, etFIG. 5 represents an enlarged sectional view along the line V-V of FIG. 4, and
- la figure 6 représente une vue en coupe des moyens de fixation des éléments de filtration sur la grille de séparation.- Figure 6 shows a sectional view of the means for fixing the filtration elements to the separation grid.
Sur les différentes figures, les mêmes références désignent des éléments identiques ou similaires.In the different figures, the same references designate identical or similar elements.
La figure 1 représente une grille de séparation 1 montée en travers d'un tronçon d'une conduite de sortie 2 d'un condenseur (non représenté) d'une usine productrice d'énergie. Le condenseur est formé d'une pluralité de tubes échangeurs de chaleur dans lequel circule un fluide qui passe ensuite dans la conduite de sortie 1. La circulation de fluide est représentée schématiquement par les flèches F. Ce fluide entraîne avec lui des corps nettoyants 3 constitués de préférence, mais non obligatoirement, par des boules en matière élastique dont le diamètre est légèrement supérieur à celui des tubes du condenseur à nettoyer.FIG. 1 represents a separation grid 1 mounted across a section of an outlet pipe 2 of a condenser (not shown) of an energy producing factory. The condenser is formed by a plurality of heat exchanger tubes in which a fluid circulates which then passes into the outlet pipe 1. The circulation of fluid is represented diagrammatically by the arrows F. This fluid carries with it cleaning bodies 3 preferably, but not necessarily, made up of balls of elastic material whose diameter is slightly greater to that of the condenser tubes to be cleaned.
La grille de séparation 1 est disposée obliquement par rapport à l'axe du tronçon de la conduite 1 de façon à se laisser traverser par le fluide F tout en arrêtant les corps nettoyants 3 au moyen de son réseau de filtration.The separation grid 1 is arranged obliquely with respect to the axis of the section of the pipe 1 so as to allow the fluid F to pass through it while stopping the cleaning bodies 3 by means of its filtration network.
De plus, la grille 1 est montée pivotante autour d'un axe pivot 4 qui s'étend sensiblement perpendiculairement à l'axe de la conduite 1, ce qui permet d'inverser périodiquement les faces amont et aval du réseau de filtration de cette grille et donc de nettoyer automatiquement ce réseau.In addition, the grid 1 is pivotally mounted around a pivot axis 4 which extends substantially perpendicular to the axis of the pipe 1, which makes it possible to periodically reverse the upstream and downstream faces of the filtration network of this grid. and therefore automatically clean this network.
Selon une variante de réalisation (non représentée) , la conduite de sortie 1 peut comprendre également deux grilles de séparation montées pivotantes, chacune autour d'un axe pivot, les deux grilles formant alors sensiblement un entonnoir inversé ou non par rapport au sens de circulation du fluide. De même, sans sortir du cadre de l'invention, la conduite de sortie peut comporter quatre grilles de séparation montées en forme de inversé ou non par rapport au sens de circulation dudit fluide.According to an alternative embodiment (not shown), the outlet pipe 1 can also comprise two separating grids pivotally mounted, each around a pivot axis, the two grids then substantially forming a funnel, inverted or not with respect to the direction of circulation fluid. Similarly, without departing from the scope of the invention, the outlet pipe may comprise four separation grids mounted in the form of inverted or not with respect to the direction of circulation of said fluid.
Comme on peut le voir sur la figure 2, la grille de séparation 1 comprend une pluralité d'armatures longitudinales 5 perpendiculaires à l'axe pivot 4 et des traverses 6 parallèles à l'axe pivot 4 tout en étant perpendiculaires aux armatures longitudinales 5. Les armatures longitudinales sont séparées d'une distance constante entre elles tout en étant reliées au moyen des traverses 6.As can be seen in FIG. 2, the separation grid 1 comprises a plurality of longitudinal reinforcements 5 perpendicular to the pivot axis 4 and crosspieces 6 parallel to the pivot axis 4 while being perpendicular to the longitudinal reinforcements 5. Longitudinal reinforcement is separated by a distance constant between them while being connected by means of crosspieces 6.
Chaque armature longitudinale 5 se présente sous la forme d'une lame rigide 5 située dans un plan perpendiculaire à l'axe pivot 4 et elle comprend un bord supérieur plan 51 et un bord inférieur 52 de forme sensiblement triangulaire comme on peut le voir sur la figure 1. Les lames rigides 5 sont reliées aux traverses 6 par leur portion inférieure. L'ensemble des parties supérieure et inférieure des différents éléments décrits dans la suite de la description sont appelées respectivement parties amont et aval en relation avec le sens d'écoulement du fluide représenté par les flèches F, dans la position normale d' utilisation de la grille.Each longitudinal reinforcement 5 is in the form of a rigid blade 5 situated in a plane perpendicular to the pivot axis 4 and it comprises a flat upper edge 51 and a lower edge 52 of substantially triangular shape as can be seen on the Figure 1. The rigid blades 5 are connected to the crosspieces 6 by their lower portion. All of the upper and lower parts of the different elements described in the following description are called respectively upstream and downstream parts in relation to the direction of flow of the fluid represented by the arrows F, in the normal position of use of the wire rack.
Conformément à l'invention, la grille se séparation 1 comprend une pluralité d' éléments de filtration 8 qui sont logés dans des couloirs longitudinaux 7 délimités par les lames rigides 5 adjacentes, ces éléments de filtration étant montés de manière amovible sur lesdites lames 5.According to the invention, the separating grid 1 comprises a plurality of filtration elements 8 which are housed in longitudinal corridors 7 delimited by the rigid blades 5 adjacent, these filtration elements being removably mounted on said blades 5.
Un exemple de réalisation de ces éléments de filtration est représenté sur les figures 3 à 5.An exemplary embodiment of these filtration elements is shown in FIGS. 3 to 5.
Chaque élément de filtration 8 comprend une pluralité de lamelles 9 parallèles aux lames rigides 5 de la grille de séparation 1 et des entretoises 10 qui relient entre elles les lamelles 9.Each filtration element 8 comprises a plurality of lamellae 9 parallel to the rigid blades 5 of the separation grid 1 and spacers 10 which connect the lamellae 9 to each other.
Les entretoises 10 s'étendent sensiblement parallèlement à l'axe pivot 4 et leurs extrémités latérales sont reliées entre elles par des joues de fixation 11 disposées parallèlement aux lamelles longitudinales. Avantageusement, les lamelles 9, les entretoises 10 et les joues de fixation 11 de chaque élément de filtration 8 sont formées d'une seule pièce réalisée en matière synthétique. Chaque élément de filtration 8 peut être réalisé, par exemple, en un matériau à base de polyphénylène éther. Ces joues de fixation 11, qui seront décrites plus en détail dans la suite de la description, permettent de fixer les éléments de fixation 8 de manière amovible sur les lames longitudinales 5 de la grillle de séparation 1. Comme on peut le voir sur les figures 3 et 5, les lamelles 9 présentent des bords d' amont 91 contenus dans un même plan de guidage P et des bords d' aval 92 qui sont également contenus dans un même plan.The spacers 10 extend substantially parallel to the pivot axis 4 and their lateral ends are interconnected by fixing cheeks 11 arranged parallel to the longitudinal strips. Advantageously, the lamellae 9, the spacers 10 and the fixing cheeks 11 of each filter element 8 are formed in one piece made of synthetic material. Each filtration element 8 can be made, for example, of a material based on polyphenylene ether. These fixing cheeks 11, which will be described in more detail in the following description, make it possible to fix the fixing elements 8 removably on the longitudinal blades 5 of the separating grid 1. As can be seen in the figures 3 and 5, the blades 9 have upstream edges 91 contained in the same guide plane P and downstream edges 92 which are also contained in the same plane.
Ainsi, lorsque l'ensemble des éléments de filtration 8 sont montés sur la grille de séparation, le plan de guidage P, commun à tous les éléments de filtration, est incliné par rapport à l'axe du tronçon de la conduite de sortie 1 (figure 1), de sorte que les corps nettoyants 3 sont guidés sur lesdits" éléments de filtration ou plus précisément sur les lamelles longitudinales 9 et sont entraînés par le fluide F jusqu'à un collecteur 2A.Thus, when all of the filtration elements 8 are mounted on the separation grid, the guide plane P, common to all the filtration elements, is inclined relative to the axis of the section of the outlet pipe 1 ( Figure 1), so that the cleaning bodies 3 are guided on said "filtration elements or more precisely on the longitudinal strips 9 and are driven by the fluid F to a collector 2A.
Les entretoises 10, quant à elles, présentent des bords d'amont 101 situés approximativement au niveau de la partie médiane des lamelles 9 et des bords d'aval 102 qui sont contenus dans le même plan que les bords d'aval 92 desdites lamelles 9.The spacers 10, for their part, have upstream edges 101 situated approximately at the level of the middle part of the lamellae 9 and downstream edges 102 which are contained in the same plane as the downstream edges 92 of said lamellae 9 .
Les joues de fixation 11, qui délimitent latéralement chaque élément de filtration 8, présentent également un bord d'amont 111 contenus dans le plan de guidage P et une portion d'aval 112 qui s'étend au-delà des bords d'aval 92 des lamelles 9.The fixing cheeks 11, which laterally delimit each filtration element 8, also have an upstream edge 111 contained in the guide plane P and a downstream portion 112 which extends beyond the downstream edges 92 slats 9.
Les portions d'aval 112 des joues de fixation 11 d'un même élément de filtration comportent des fenêtres 12, par exemple au nombre de trois, qui sont adaptées pour former, avec des fenêtres 12 correspondantes d'un autre élément de filtration 8 adjacent, des logements coopérant avec des moyens de fixation amovibles reliés aux lames rigides 5 de la grille 1.The downstream portions 112 of the fixing cheeks 11 of the same filtration element comprise windows 12, for example three in number, which are adapted to form, with corresponding windows 12 of another adjacent filter element 8, housings cooperating with removable fixing means connected to the rigid blades 5 of the grid 1.
Ces moyens de fixation amovibles représentés sur la figure 6 peuvent être formés, par exemple, par un système de vis/écrou 13, 14 adapté pour chaque fenêtre 12. Dans ce cas, une vis à tête 13 est disposée dans le logement formé par une ouverture traversante 51 réalisée sur la lame rigide 5 et par les fenêtres 12 en regard de deux éléments de filtration 8, la tête de la vis 13 venant en appui contre l'une des joues 11 d'un élément de filtration 8, et l'écrou 14 qui coopère avec la vis 13 venant en appui contre la joue de fixation 11 de l'autre élément de filtration.These removable fixing means shown in FIG. 6 can be formed, for example, by a screw / nut system 13, 14 adapted for each window 12. In this case, a head screw 13 is disposed in the housing formed by a through opening 51 made on the rigid blade 5 and through the windows 12 facing two filtration elements 8, the head of the screw 13 coming to bear against one of the cheeks 11 of a filtration element 8, and the nut 14 which cooperates with the screw 13 bearing against the fixing cheek 11 of the other filter element.
Ces différents systèmes de vis/écrou peuvent être facilement enlevés par un opérateur lors du remplacement d' au moins un élément de filtration endommagé par un autre élément de filtration. Les joues de fixation 11 peuvent également comporter sur leur face externe 113 une nervure longitudinale 15 destinée à reposer sur le bord d' amont des lames rigides 5 de la grille de séparation 1 lors de la mise en place des éléments de filtration 8. Ces nervures longitudinales 15 permettent ainsi de positionner de manière simple et efficace les différents éléments de filtration 8 sur les lames 5 adjacentes afin que les bords d'amont 91 des lamelles 9 soient tous contenus dans le même plan de guidage P. Afin de positionner correctement les différents éléments de filtration 8 sur les lames rigides 5 adjacents, les extrémités 11A, 11B des joues de fixation 11 peuvent être également pourvues de moyens d'emboîtement adaptés pour coopérer avec des moyens d'emboîtement correspondants d'un autre élément de filtration aligné entre les mêmes lames rigides 5 adjacentes. Comme on peut le voir sur les figures 3 et 4, les extrémités 11A et 11B des joues de fixation 11 s'étendent au-delà des extrémités longitudinales des lamelles 9 et les moyens d'emboîtement sont formés par des épaulements 16, 17 réalisés respectivement sur les faces externe 113 et interne 114 des extrémités 11A et 11B de chacune des joues de fixation 11.These different screw / nut systems can be easily removed by an operator when replacing at least one damaged filter element with another filter element. The fixing cheeks 11 may also have on their external face 113 a longitudinal rib 15 intended to rest on the upstream edge of the rigid blades 5 of the separation grid 1 during the installation of the filtration elements 8. These ribs longitudinal 15 thus make it possible to position the different filtration elements 8 on the adjacent blades 5 in a simple and effective manner so that the upstream edges 91 of the lamellae 9 are all contained in the same guide plane P. In order to correctly position the different filtration elements 8 on the adjacent rigid blades 5, the ends 11A, 11B of the fixing cheeks 11 can also be provided with fitting means adapted to cooperate with corresponding fitting means of another filter element aligned between the same adjacent rigid blades 5. As can be seen in FIGS. 3 and 4, the ends 11A and 11B of the fixing cheeks 11 extend beyond the longitudinal ends of the strips 9 and the interlocking means are formed by shoulders 16, 17 made respectively on the external 113 and internal 114 faces of the ends 11A and 11B of each of the fixing cheeks 11.
Les épaulements 16 des extrémités 11A sont disposés en éloignement l'un de l'autre et les épaulements 17 des extrémités 11B des joues de fixation 11 sont disposés en regard. De plus, les épaulements 16 sont pourvus de deux nervures 16A et 16B distinctes et de longueurs différentes qui sont destinées à coopérer respectivement avec deux rainures 17A et 17B de forme complémentaire réalisées sur les épaulements 17 des extrémités 11B des joues de fixation 11 d' un autre élément de filtration disposé entre les mêmes lames rigides 5 adjacentes. Ainsi, lors de la mise en place des éléments de filtration modulaires 8 sur la grille de séparation, les nervures 16A et 16B des épaulements 16 s'emboîteront uniquement par clipsage dans les rainures 17A et 17B des épaulements 17 si les deux éléments de filtration sont correctement positionnés l'un par rapport à l'autre. The shoulders 16 of the ends 11A are arranged at a distance from each other and the shoulders 17 of the ends 11B of the fixing cheeks 11 are arranged opposite. In addition, the shoulders 16 are provided with two distinct ribs 16A and 16B and of different lengths which are intended to cooperate respectively with two grooves 17A and 17B of complementary shape made on the shoulders 17 of the ends 11B of the fixing cheeks 11 of a another filter element disposed between the same rigid blades 5 adjacent. Thus, during the installation of the modular filtration elements 8 on the separation grid, the ribs 16A and 16B of the shoulders 16 will only fit together by clipping into the grooves 17A and 17B of the shoulders 17 if the two filtration elements are correctly positioned in relation to each other.

Claims

REVENDICATIONS
1. Grille de séparation pour séparer, du fluide qui les transporte, des corps nettoyants (3) provenant d'un condenseur, ladite grille (1) comprenant, d'une part, une pluralité d'armatures longitudinales (5) parallèles équidistantes reliées entre elles par des traverses (6), et, d'autre part, un axe pivot (4) perpendiculaire aux dites armatures longitudinales (5), l'axe pivot (4) étant destiné à permettre le pivotement de ladite grille dans une conduite de sortie (2) du condenseur, caractérisée en ce qu'elle comprend, en outre, une pluralité d'éléments de filtration (8) rigides montés de manière amovible entre lesdites armatures longitudinales. 1. Separation grid for separating, from the fluid which transports them, cleaning bodies (3) coming from a condenser, said grid (1) comprising, on the one hand, a plurality of equidistant parallel longitudinal reinforcements (5) connected between them by crosspieces (6), and, on the other hand, a pivot axis (4) perpendicular to said longitudinal reinforcements (5), the pivot axis (4) being intended to allow the pivoting of said grid in a pipe outlet (2) of the condenser, characterized in that it further comprises a plurality of rigid filter elements (8) removably mounted between said longitudinal frames.
2. Grille selon la revendication 1, dans laquelle les armatures longitudinales sont des lames rigides (5) situées dans des plans perpendiculaires à l'axe pivot (4), et chaque élément de filtration (8) comprend, d'une part, une pluralité de lamelles (9) parallèles aux lames rigides, et d'autre part, des entretoises (10) reliant entre elles lesdites lamelles, chaque élément de filtration comportant, en outre, deux joues de fixation (11) perpendiculaires à l'axe pivot (4) et fixées latéralement de manière amovible sur deux lames (5) adjacentes de la grille. 2. Grid according to claim 1, in which the longitudinal reinforcements are rigid blades (5) situated in planes perpendicular to the pivot axis (4), and each filtration element (8) comprises, on the one hand, a plurality of lamellae (9) parallel to the rigid blades, and on the other hand, spacers (10) connecting together said lamellae, each filter element further comprising two fixing flanges (11) perpendicular to the pivot axis (4) and removably fixed laterally on two adjacent blades (5) of the grid.
3. Grille selon la revendication 2, dans laquelle les deux joues de fixation (11) de chaque élément de filtration (8) sont parallèles aux lamelles (9), lesdites joues de fixation comportant chacune une portion d'aval (112) qui s'étend au delà desdites lamelles (9) et sur laquelle sont réalisées des fenêtres (12) adaptées pour former, avec des fenêtres (12) correspondantes d'un autre élémenc de filtration, des logements coopérant avec des moyens de fixation amovibles (13,14) reliés aux lames rigides (5) de la grille.3. Grid according to claim 2, in which the two fixing cheeks (11) of each filtration element (8) are parallel to the lamellae (9), said fixing cheeks each comprising a downstream portion (112) which s 'extends beyond said lamellae (9) and on which are made windows (12) adapted to form, with windows (12) corresponding to another filtration element, housings cooperating with removable fixing means (13,14) connected to the rigid blades (5) of the grid.
4. Grille selon la revendication 3, dans laquelle les lamelles (9) et les joues de fixation (11) de chaque élément de filtration comportent des bords d'amont (91,111) contenus dans un même plan de guidage (P) pour guider les corps nettoyants (3) .4. Grid according to claim 3, in which the lamellae (9) and the fixing cheeks (11) of each filtration element have upstream edges (91,111) contained in the same guide plane (P) to guide the cleaning bodies (3).
5. Grille selon l'une ou l'autre des revendications 3 et 4, dans laquelle les lames rigides (5) comportent des ouvertures (51) disposées au droit des fenêtres (12) des éléments de filtration et les moyens de fixation amovibles comprennent un système de vis/écrou (13,14) pour relier lesdits éléments de filtration aux lames de la grille.5. Grid according to either of claims 3 and 4, in which the rigid blades (5) have openings (51) arranged in line with the windows (12) of the filtration elements and the removable fixing means comprise a screw / nut system (13,14) for connecting said filtration elements to the grid blades.
6. Grille selon l'une quelconque des revendications 2 à 5, dans laquelle chaque joue de fixation s'étend longitudinalement entre des première (11B) et deuxième (11A) extrémités qui sont chacune pourvues de moyens d'emboîtement, adaptés pour coopérer avec des moyens d'emboîtement correspondants d'un autre élément de filtration, pour permettre un positionnement correcte des éléments de filtration alignés entre deux lames rigides adjacentes de la grille.6. Grid according to any one of claims 2 to 5, in which each fixing cheek extends longitudinally between first (11B) and second (11A) ends which are each provided with interlocking means, adapted to cooperate with corresponding fitting means of another filtration element, to allow correct positioning of the filtration elements aligned between two adjacent rigid blades of the grid.
7. Grille selon la revendication 6, dans laquelle les moyens d'emboîtement des premières extrémités (11B) sont formés par des épaulements (17) disposés en regard et les moyens d'emboîtement des deuxièmes extrémités (11A) sont formés par des épaulements (16) disposés en éloignement l'un de l'autre, les épaulements (17) des premières extrémités7. Grid according to claim 6, in which the means for fitting the first ends (11B) are formed by shoulders (17) arranged facing each other and the means for fitting the second ends (11A) are formed by shoulders ( 16) arranged at a distance from each other, the shoulders (17) of the first ends
(11B) étant chacun pourvus de deux rainures distinctes (17A,17B) de longueurs différentes destinées à coopérer par clipsage avec deux nervures (16A,16B) de forme complémentaire réalisées sur les épaulements (16) disposées en éloignement d'un autre élément filtrant.(11B) each being provided with two distinct grooves (17A, 17B) of different lengths intended to cooperate by clipping with two ribs (16A, 16B) of shape complementary made on the shoulders (16) arranged away from another filter element.
8. Grille selon l'une quelconque des revendications 2 à 7, dans laquelle les deux joues de fixation (11) de chaque élément de filtration (8) sont chacune pourvues d'une nervure longitudinale (15) destinée à reposer sur la lame rigide (5) de ladite grille (1) qui lui est associée.8. Grid according to any one of claims 2 to 7, in which the two fixing cheeks (11) of each filtration element (8) are each provided with a longitudinal rib (15) intended to rest on the rigid blade (5) of said grid (1) associated therewith.
9. Grille selon l'une quelconque des revendications précédentes, dans laquelle les éléments de filtration (8) sont réalisés en matière synthétique.9. Grid according to any one of the preceding claims, in which the filtration elements (8) are made of synthetic material.
10. Grille selon la revendication 9, dans laquelle les éléments de filtration sont réalisés en un matériau à base de polyphénylène éther.10. Grid according to claim 9, in which the filtration elements are made of a material based on polyphenylene ether.
11. Dispositif pour séparer, du fluide (F) qui les transporte, des corps nettoyants (3) sortant avec ce fluide d'un condenseur à tubes, le dispositif comportant au moins une grille (1) selon l'une quelconque des revendications précédentes, la grille (1) étant montée obliquement en travers d'une conduite de sortie (2) du condenseur de sorte que ladite grille est traversée par le fluide (F) en arrêtant les corps nettoyants (3) qui sont guidés sur ladite grille jusqu'à un collecteur (2A) évacuant les corps nettoyants (3) séparés du fluide. 11. Device for separating, from the fluid (F) which transports them, the cleaning bodies (3) emerging with this fluid from a tube condenser, the device comprising at least one grid (1) according to any one of the preceding claims , the grid (1) being mounted obliquely across an outlet pipe (2) of the condenser so that said grid is traversed by the fluid (F) by stopping the cleaning bodies (3) which are guided on said grid until '' to a collector (2A) evacuating the cleaning bodies (3) separated from the fluid.
PCT/FR2001/003124 2000-10-25 2001-10-10 Screening grid for separating cleaning particles from a fluid and device comprising same WO2002034353A1 (en)

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AU2001295675A AU2001295675A1 (en) 2000-10-25 2001-10-10 Screening grid for separating cleaning particles from a fluid and device comprising same
EP01976388A EP1333903A1 (en) 2000-10-25 2001-10-10 Screening grid for separating cleaning particles from a fluid and device comprising same

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FR0013674A FR2815548B1 (en) 2000-10-25 2000-10-25 SEPARATION GRID FOR SEPARATING CLEANING BODIES FROM A FLUID AND DEVICE COMPRISING SUCH A GRID
FR00/13674 2000-10-25

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AU2001295675A1 (en) 2002-05-06
EP1333903A1 (en) 2003-08-13
FR2815548A1 (en) 2002-04-26
FR2815548B1 (en) 2003-08-15

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