FR2643971A1

FR2643971A1 - Self-cleaning cyclic gating with decanting

Info

Publication number: FR2643971A1
Application number: FR8902999A
Authority: FR
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-03-02
Filing date: 1989-03-02
Publication date: 1990-09-07
Anticipated expiration: 2009-03-02
Also published as: FR2643971B1

Abstract

Device for trapping sands in inspectable pipelines conveying effluent whilst carrying out flushing. It consists of two guides 1, a decanting sluice 2, a decanting and agitating sluice 3, a closure stop 4, two rotation spindles 5, and two spindle supports 6 fixed to the guides. The device according to the invention is particularly intended for exploiting sewerage (drainage) networks.

Description

La présente invention concèrne un dispositif pour stoker et éva -cuer précipitamment des effluents à ècoulement gravitaire transitant dans des canalisations visitables ou lazzi visitables,tout en permet -tant le piègeage des matières en suspensions contenues dans les effluents et/l'autocurage par chasse d'eau
les canalisations transitant des effluents souffrent de l'ensable -ment constant,l'entretien de de ces ouvrages se fait manuellement ou quelquefois par hydrocurage pour les petits ouvrages.The present invention relates to a device for storing and evacuating precipitately effluents with gravity flow passing through visitable pipes or visitable lazzi, while allowing the trapping of suspended matter contained in the effluents and / self-cleaning by hunting. 'water
the pipes passing through effluents suffer from constant silting, the maintenance of these works is done manually or sometimes by hydrocuring for small works.

Le dispositif suivant l'invention,placé à l'intérieur des canali -sations permet de rendre auto curant les tronçons à fort ensablement tout en piégeant les dépots à des endroits où l'extraction en sera aisée,il est modulable afin de pouvoir s'integrer au site suivant les résultants desirés,il pourra Strie conçu de façon à ne pas permettre une obstruction des canalisations en cas de fort débit. The device according to the invention, placed inside the canali -sations makes it possible to self curating the sections with high silting while trapping the deposits in places where the extraction will be easy, it is modular so as to be able to integrate into the site according to the desired results, it can Streak designed so as not to allow an obstruction of the pipes in case of high flow.

Ce dispositif comporte deux guides bloqués contre les parments de l'ouvrage recepteur,ils seront d'une hauteur correspondant au volume d'effluents à stocker et à évacuer.Une vanne primaire dite de décan -tation viendra s'appuyer contre les guides,en leur point bas,coté amont,elle permettra de retenir les déblais déposé par décantation. This device comprises two guides blocked against the walls of the receiving structure, they will be of a height corresponding to the volume of effluents to be stored and to be evacuated. A primary valve called decan -tation will come to rest against the guides, their low point, upstream side, it will retain the cuttings deposited by decantation.

Une vanne secondaire mobile viendra se situer dans le même plan,au dessus de la vanne primaire,elle aura pour but de stocker,pour per -mettre la décantation,et d'évacuer automatiquement les effluents afin de créer des chasses,elle sera pourvue d'un axe horizontal repo -sant dans des supports solidaires aux guides,elle aura la possibili -té d'éffectuer un quart de rotation de la position verticale dite de fermeture,en butée contre la vanne primaire,à la position horizon -tale dite d'ouverture,stabilisée par des butées situées sur les axes et venant prendre appui contre les guides.le mouvement de la vanne secondaire sera effectué par la poussée des effluents,pour cela il faudra que l'emplacement de l'axe soit situé en dessous du point bù les gressions hydraoliques éxssroées contre les surfaces sur axe
et soue axe s'égalisent de façon à provoquer la rotation de celle çi.A movable secondary valve will be located in the same plane, above the primary valve, it will aim to store, to allow settling, and to automatically evacuate the effluents in order to create flushes, it will be provided with 'a horizontal axis resting in supports integral with the guides, it will have the possibility of performing a quarter rotation from the vertical position known as closing, in abutment against the primary valve, to the horizontal position -tale known as d opening, stabilized by stops located on the axes and coming to bear against the guides. the movement of the secondary valve will be carried out by the thrust of the effluents, for this it will be necessary that the location of the axis is located below the point where hydraolic gressions exssroées against surfaces on axis
and soue axis are equalized so as to cause the rotation of this one.

Lorsque les effluents se seront échappés,la vanne reprendra sa posi
-tion verticale dite de fermeture car,elle sera réalisée de façon
que la partie sous axe soit d'un poids supérieur à la partie sur axe ou selon une variante;la vanne en ouverture ,viendra en butée avant d'être en position horizontale ,de ce fait,lors de la baisse du niveau,les effluents en pression seulement sur la partie sous axe assureront la poussée de fremeture.les supports d'axe fixées sur les guides et permettant à ceux ci de tourner librement,pourront être réalisés en matériaux offrant peu de résistance å lteffort,afin,lors de mise en charge exeptionnelle,permettre à la vanne secondaire de 'évacuer de ses supports sous la pression des effluents.When the effluents have escaped, the valve will resume its posi
-tion vertical said closing because, it will be done so
that the sub-axis part is of a greater weight than the axis part or according to a variant; the opening valve will come to a stop before being in a horizontal position, therefore, when the level drops, the effluents pressure only on the sub-axis part will ensure the fremeture thrust. the axis supports fixed on the guides and allowing them to rotate freely, can be made of materials offering little resistance to the effort, so, when placing exceptional load, allow the secondary valve to evacuate from its supports under the pressure of the effluents.

Les dessins se réferent à la présente invention prennent comme
exemple,une canalisation ovoïde visitable de type XI80. The drawings refer to the present invention take as
example, a visitable oval pipe of type XI80.

La figure. I représente l'ensenble vue de face coté aval. The figure. I represents the whole view from the front downstream side.

La figure 2 représente la coupe AA vue de gauche. FIG. 2 represents the section AA seen from the left.

La figure 3 représente les différentes phases de fonctionnement
Le dispositif représente sur la figure I et 2 deux guides (I) épou -sant la forme de l'ouvrage récepteur,une vanne primaire (2) servant
à retenir les matières décantées et venant en appui contre les guides,une vanne secondaire (3) pourvue d'un axe(5)ou da 2 petits
axes horizontaux lui permettant d'effectuer un quart de rotation
limité d'une part par la vanne primaire *t d'autre part par des
butées solidaires aux axes et venant prendre appui contre les guide
deux supports (6)fixés sur les guides et recevant les axes (5)
Les besoins de stockage délimiteront les hauteurs des vannes etc les
formes diverses des ouvrages récepteurs délimiteront les formes des guides et des vannes.Figure 3 shows the different operating phases
The device represents in Figure I and 2 two guides (I) espousing the shape of the receiving structure, a primary valve (2) serving
to retain the settled material and coming to bear against the guides, a secondary valve (3) provided with a pin (5) or in 2 small
horizontal axes allowing it to perform a quarter rotation
limited on the one hand by the primary valve * t on the other hand by
stops integral with the axes and coming to bear against the guides
two supports (6) fixed on the guides and receiving the pins (5)
Storage requirements will define the heights of the valves, etc.
various forms of the receiving structures will delimit the forms of guides and valves.

Selon une variante dictée par les besoins et les résultats à
obtenir le nombre de vannes ntest pas fim*,il peut évoluer et être modulé,la vanne primaire de même qutune troisième vanne supérieure peuvent fontionner suivant le principe de la vanne secondaire,il
frira stassurer que la portée de la-butée de recouvrement ne laisse
pas passer les effluents en position de fermeture,la portée de la dite butée sur la vanne inférieure modifiera les surfaces supportant les poussée hy4rauliques. According to a variant dictated by the needs and the results to
get the number of valves is not fim *, it can evolve and be modulated, the primary valve as well as a third upper valve can operate according to the principle of the secondary valve, it
frira stassurer ensure that the range of the cover stopper leaves
not pass the effluents in the closed position, the range of the said stop on the lower valve will modify the surfaces supporting the hydraulic thrusts.

le dispositif suivant l'invention est particulierement destiné à la gestion des envasements des ouvrages d'assainissement.

the device according to the invention is particularly intended for the management of siltation of sanitation works.

Claims

two supports (6) integral with the guides.

I) Hydraulic device making it possible to manage the silting up of visitable and semi-visitable pipes passing through effluent caractsrisó in that it comprises a set of guides (I) a settling and storage valve (2) a movable secondary valve (3) suspended by I major axis or 2 minor axes (5) resting in

2) device according to claim I characterized in that the guides may be designed in one or two elements and will be fixed against the walls of the receiving structure.

3) device according to claim I characterized in that the valve (2) is placed in abutment against the guides and on the ra -dier of the pipe on the upstream side.

4) device according to claim I characterized in that the valve (3) can perform a quarter rotation limited on the one hand by the valve (2) by means of a covering stop (4) and at-other part by a pin or chain stopper system.

5) device according to claim 4 characterized in that the axis of the valve (3) is fixed on the latter of fayot vertical position, at the end of the stockoge, its equilibrium is broken, when the thrust of the effluents is greater on the surface if, tu4er above the axis than su below the axis.

6> salon device claim 4 characterized in that the valve (3) will be designed so that the sub-axis part abutting against the valve (2) is of a weight greater than the part located above the axis this one considered in vertical position

7) Device according to claim 4 characterized in that the valve (3) can be stabilized before being in the horizontal position-opening position so that the effluents under pressure only against the sub-axis part can ensure the closing thrust

8) device according to claim I that an axis (5) will be fixed on the valve (3) and will come to rest in supports (6) fixed on the guides.

9) Device according to claim I characterized in that the axis supports qotent ren1ized in flexible material so that, under a very heavy stress they can let escape the axes (5).

IO) device according to claim I characterized in that the general shape of this system is to change according to the shape of the receiving structure