EP1704289B1 - Liquid evacuation device and corresponding liquid guiding device - Google Patents

Liquid evacuation device and corresponding liquid guiding device Download PDF

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Publication number
EP1704289B1
EP1704289B1 EP04805426A EP04805426A EP1704289B1 EP 1704289 B1 EP1704289 B1 EP 1704289B1 EP 04805426 A EP04805426 A EP 04805426A EP 04805426 A EP04805426 A EP 04805426A EP 1704289 B1 EP1704289 B1 EP 1704289B1
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EP
European Patent Office
Prior art keywords
discharge
liquid
discharge device
radial
branch
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EP04805426A
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German (de)
French (fr)
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EP1704289A1 (en
Inventor
Pierre Barbe
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Saint Gobain PAM SA
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Saint Gobain PAM SA
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/0404—Drainage on the roof surface
    • E04D13/0409—Drainage outlets, e.g. gullies
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/0401—Gullies for use in roads or pavements
    • E03F5/0404—Gullies for use in roads or pavements with a permanent or temporary filtering device; Filtering devices specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
    • E03B3/02—Methods or installations for obtaining or collecting drinking water or tap water from rain-water
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/0404—Drainage on the roof surface
    • E04D13/0409—Drainage outlets, e.g. gullies
    • E04D2013/0413—Strainers for drainage outlets
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/0404—Drainage on the roof surface
    • E04D13/0409—Drainage outlets, e.g. gullies
    • E04D2013/0427—Drainage outlets, e.g. gullies with means for controlling the flow in the outlet

Definitions

  • the present invention relates to a device for discharging a liquid, especially rainwater, of the type comprising a discharge pipe extending along an axis and forming an exhaust inlet, a collecting pan extending around the discharge inlet and being provided with a flange, and a liquid guiding device comprising a cover plate, the cover plate comprising a solid central zone covering the exhaust inlet.
  • the document FR-A-2,337,237 discloses a water evacuation device which is provided with an anti-vortex device.
  • This anti-vortex device consists of a cylindrical wall provided with a plurality of water inlet openings. The upper end of the cylinder is closed by a solid circular plate to prevent air from entering the drain pipe. The diameter of the cylinder is greater than the diameter of the discharge pipe.
  • the document GB-A-2269402 describes a water evacuation device provided with an anti-vortex device and a filtering grid.
  • the anti-vortex device comprises three partitions arranged radially in an evacuation tank and a substantially cone-shaped plate disposed above the inlet of the discharge pipe.
  • Another water evacuation device is known from the document FR-A-2,747,144 .
  • This device comprises an anti-vortex device provided with fins arranged radially relative to the axis of the discharge pipe.
  • the document US Patent 4652365 describes a device for discharging a liquid according to the preamble of claim 1 and a device for guiding a liquid according to the preamble of claim 16.
  • liquid evacuation devices of the state of the art mentioned above have a low flow rate for given dimensions. In addition, they are difficult to manufacture and have a significant cost, especially because of the many parts of which they are made.
  • the object of the invention is to propose a liquid evacuation device that has a large liquid flow rate for given dimensions.
  • the subject of the invention is a device for guiding a liquid according to the wording of claim 16 and an evacuation device of the aforementioned type, according to the wording of claim 1, comprising said guiding device.
  • Device 2 is installed on a roof 4 horizontal or low slope of a building, and serves to evacuate rainwater accumulating on this roof, when they exceed a first level N1.
  • the device 2 comprises a discharge pipe 6, a collecting tank 8 and a liquid guiding device 10.
  • the discharge pipe 6 extends vertically, along a vertical axis X-X, and delimits, at its upper end, a discharge outlet 12 circular diameter D1.
  • the collecting tray 8 comprises a bowl 14.
  • the discharge inlet 12 opens at the center of the bottom of the bowl 14.
  • a collar 16 is connected to the upper edge of the bowl 14. The collar 16 extends at the level N1 and forms an annular surface having an inner diameter D2 and an outer diameter D3.
  • Three threaded rods 18 project on the surface of the flange 16, on the opposite side to the pipe 6.
  • the pipe 6 and the collecting tank 8 are of revolution about the axis X-X.
  • the guide device 10 serves to guide the water into the exhaust inlet 12 without inclusion of air and to retain impurities, such as leaves.
  • the guide device 10 comprises a circular flat cover plate 20. It extends perpendicularly to the axis XX at a level N2.
  • the diameter of the plate 20 is identical to the outside diameter D3 of the flange 16.
  • the plate 20 is spaced from the flange 16 by a distance d .
  • the distance d is the filtering distance, which is for example 15 mm.
  • the edges of the plate 20 and the flange 16 define between them a flow mouth 21 extending circumferentially about the axis XX.
  • the plate 20 consists of a central zone 22 extending vis-à-vis the exhaust inlet 12 and a peripheral zone 24 surrounding the central zone 22.
  • the central zone 22 is formed of a solid wall and has a diameter that is equal to the diameter D2.
  • the peripheral zone 24 is provided with three through-evacuation openings 26 as well as three fixing holes 28 ( Figure 3 ).
  • the discharge openings 26 are entirely in front of the flange 16 and have an oblong shape extending along the periphery of the plate 20. In axial view, each opening has a circular ring sectional shape. Each opening has a constant width and has an arcuate shape centered on the X-X axis. The openings 26 are regularly distributed about the axis X-X and each opening extends over the same angular range ⁇ , which is 90 °. The discharge openings 26 preferably extend in total over an angular range of between 240 ° and 300 °. The width L1 measured radially of the opening 26 is smaller than the radial width of the flange 16. The notch 30 of each opening 26 consists of two radial end sections 32, 34 and two circumferential outer 36 and inner 38 sections. .
  • Liquid guiding protrusions 40 protrude from the face of the plate 20 facing the tray 8. They extend to the flange 16 ( Figure 1 ) through the mouth 21. As illustrated on the Figure 3 each opening 26 is provided with two of these projections 40.
  • Each projection 40 comprises a radial branch 44, extending along the corresponding radial end section 32, 34, and a circumferential branch 48, extending along a portion of the inner circumferential circumferential portion 38.
  • the circumferential branch 48 is adjacent to the radial branch 44.
  • the length of the two branches 44, 48 is substantially identical to so that each projection 40 has, in axial view, a general shape of L.
  • the guiding device 10 further comprises filtering means adapted to filter the liquid flowing in the openings 26. As shown in FIGS. Figures 2 and 4 these filtering means comprise a plurality of radial ribs 50 arranged on the plate 20 and projecting axially from the opposite side to the tank 8.
  • the ribs 50 extend over the discharge openings 26 and at a mutual distance d at their radially outer ends. This distance d is therefore equal to the filtering distance.
  • the radial width L2 of the ribs 50 is preferably between 1.5 times and 2.5 times the radial width L1 of the discharge opening 26. In this case, the radial width L2 is substantially twice the width L1 .
  • each rib 50 is between 1.5 times and 4 times the axial height d of the projections 40.
  • the axial upper end of the ribs 50 defines a level N3.
  • Each rib 50 is provided with a cell 52 axially open towards the discharge opening and circumferentially through.
  • the ribs 50 of each opening 26 comprise two lateral ribs 50A, which are disposed at the circumferential end of each opening 26.
  • the height of the cell 52A of each of these ribs 50A is equal to d , therefore identical to the distance of filtering.
  • the height of the cells 52A of these lateral ribs is less than the height of the cells 52 of the ribs 50 located between the lateral ribs 50A.
  • the cells 52, 52A make it possible to reduce the quantity of material necessary for the manufacture of the guiding device 10.
  • the lateral ribs 52A of two adjacent openings 26 are disposed at a mutual distance greater than the filtering distance d .
  • the guiding device thus forms a radial passage of liquid 54 without filtering means.
  • unfiltered liquid can flow into the central zone 22 and is filtered by the radially inner portion of the ribs 50.
  • the device 2 also comprises three nuts 60 screwed onto the rods 18 and clamping the guiding device against the flange 16.
  • the guide device 10 is manufactured by molding in one piece.
  • a first portion E1 of the water flows radially between the flange 16 and the plate 20.
  • a second portion E2 flows radially inwardly through the interstices between the ribs 50.
  • a third portion E3 flows radially inwardly through the passages 54 and radially to the outside through interstices between ribs 50.
  • the water After passing the interstices between the ribs 50, the water flows axially through the discharge openings 26 and is deflected radially towards the X-X axis (arrow E).
  • each rib 50 situated opposite the plate 20 also contributes to the filtering.
  • the radial branches 44 of the projections 40 prevent the generation of a vortex, while the circumferential branches 48 lead to a uniform distribution of the water pressure on the plate 20. As a result, the water flows laminarly between the plate 20 and the collar 16 and does not cause air in the pipe 6.
  • the device 2 therefore has a so-called siphoid operation.
  • the device 2 according to the invention is easy to manufacture and to assemble thanks to the manufacture of a single piece of the guiding device 10.
  • the device 2 achieves a high flow rate of water for a given diameter of the pipe thanks to the laminar flow of the liquid and the large filtering surface.
  • the arrangement of the ribs 50 further facilitates the cleaning of the device.
  • liquid guiding device 10 makes it possible to use pipes of different diameters while keeping good evacuation properties.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cyclones (AREA)
  • Filtration Of Liquid (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Separating Particles In Gases By Inertia (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Alarm Systems (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Pipe Accessories (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Exhaust Silencers (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Power Steering Mechanism (AREA)
  • External Artificial Organs (AREA)

Abstract

The device has an evacuation tube (6) forming an inlet (12) for evacuation, a collector tub (8) and a liquid guiding device (10). The device (10) has a plate (20) to cover the inlet, and having a peripheral zone. Evacuation openings (26) are arranged in the zone. Two liquid guiding units (40) are provided for each opening in the annular space between the plate and a flange. Each unit has a radial branch and a circumferential branch.

Description

La présente invention concerne un dispositif d'évacuation d'un liquide, notamment d'eaux pluviales, du type comportant un tuyau d'évacuation s'étendant suivant un axe et formant une entrée d'évacuation, un bac collecteur s'étendant autour de l'entrée d'évacuation et étant muni d'une collerette, et un dispositif de guidage du liquide comprenant une plaque de recouvrement, la plaque de recouvrement comprenant une zone centrale pleine couvrant l'entrée d'évacuation.The present invention relates to a device for discharging a liquid, especially rainwater, of the type comprising a discharge pipe extending along an axis and forming an exhaust inlet, a collecting pan extending around the discharge inlet and being provided with a flange, and a liquid guiding device comprising a cover plate, the cover plate comprising a solid central zone covering the exhaust inlet.

Elle s'applique notamment aux dispositifs d'évacuation d'eaux pluviales installés sur des toits horizontaux et/ou à faible pente.It applies in particular to rainwater drainage devices installed on horizontal roofs and / or low slope.

Le document FR-A-2 337 237 décrit un dispositif d'évacuation d'eau qui est muni d'un dispositif anti-vortex. Ce dispositif anti-vortex est constitué d'une paroi cylindrique munie d'une pluralité d'ouvertures d'admission d'eau. L'extrémité supérieure du cylindre est obturée par une plaque circulaire pleine afin d'empêcher l'entrée d'air dans le tuyau d'évacuation. Le diamètre du cylindre est supérieur au diamètre du tuyau d'évacuation.The document FR-A-2,337,237 discloses a water evacuation device which is provided with an anti-vortex device. This anti-vortex device consists of a cylindrical wall provided with a plurality of water inlet openings. The upper end of the cylinder is closed by a solid circular plate to prevent air from entering the drain pipe. The diameter of the cylinder is greater than the diameter of the discharge pipe.

Le document GB-A-2,269,402 décrit un dispositif d'évacuation d'eau muni d'un dispositif anti-vortex et d'une grille de filtrage. Le dispositif anti-vortex comprend trois cloisons disposées radialement dans un bac d'évacuation ainsi qu'une plaque sensiblement en forme de cône disposée au dessus de l'entrée du tuyau d'évacuation.The document GB-A-2269402 describes a water evacuation device provided with an anti-vortex device and a filtering grid. The anti-vortex device comprises three partitions arranged radially in an evacuation tank and a substantially cone-shaped plate disposed above the inlet of the discharge pipe.

Un autre dispositif d'évacuation d'eau est connu du document FR-A-2 747 144 . Ce dispositif comprend un dispositif anti-vortex muni d'ailettes disposées radialement par rapport à l'axe du tuyau d'évacuation. Le document US-A-4652365 décrit un dispositif d'évacuation d'un liquide selon le préambule de la revendication 1 et un dispositif de guidage d'un liquide selon le préambule de la revendication 16.Another water evacuation device is known from the document FR-A-2,747,144 . This device comprises an anti-vortex device provided with fins arranged radially relative to the axis of the discharge pipe. The document US Patent 4652365 describes a device for discharging a liquid according to the preamble of claim 1 and a device for guiding a liquid according to the preamble of claim 16.

Les dispositifs d'évacuation de liquide de l'état de la technique précités présentent un débit faible pour des dimensions données. En outre, ils sont difficiles à fabriquer et ont un coût de revient important, notamment en raison des nombreuses pièces dont ils sont constitués.The liquid evacuation devices of the state of the art mentioned above have a low flow rate for given dimensions. In addition, they are difficult to manufacture and have a significant cost, especially because of the many parts of which they are made.

En partant de cet état de la technique, l'invention a pour but de proposer un dispositif d'évacuation de liquide qui ait un débit important de liquide pour des dimensions données.From this state of the art, the object of the invention is to propose a liquid evacuation device that has a large liquid flow rate for given dimensions.

A cet effet l'invention a Pour objet un dispositif de guidage d'un liquide selon le libellé de la revandication 16 et un dispositif d'évacuation du type précité, selon le libellé de la revendication 1, comprenant ledit dispositif de guidage.To this end, the subject of the invention is a device for guiding a liquid according to the wording of claim 16 and an evacuation device of the aforementioned type, according to the wording of claim 1, comprising said guiding device.

Selon des modes particuliers de réalisation, l'ensemble selon l'invention comporte l'une ou plusieurs des caractéristiques suivantes :

  • pour chaque ouverture deux organes de guidage de liquide sont prévus dans l'espace annulaire entre la plaque de recouvrement et la collerette et s'étendent le long d'une partie du bord, de chaque côté circonférentiel de l'ouverture d'évacuation, et chaque organe de guidage comprend une branche radiale s'étendant sensiblement radialement et une branche circonférentielle prolongeant la branche radiale et s'étendant sensiblement circonférentiellement par rapport à l'axe X-X du tuyau d'évacuation ;
  • la branche circonférentielle du ou de chaque organe de guidage prolonge la branche radiale du côté radialement intérieur ;
  • la longueur de la branche radiale est sensiblement identique à la longueur de la branche circonférentielle ;
  • les organes de guidage s'étendent de la surface de la plaque de recouvrement jusqu'à la surface de la collerette ;
  • l'ouverture d'évacuation est de forme oblongue dont l'étendue circonférentielle est supérieure à l'étendue radiale ;
  • la plaque de recouvrement comprend au moins deux, de préférence trois, ouvertures d'évacuation ;
  • la plaque de recouvrement comprend des moyens de filtrage disposés du côté de la plaque opposé au bac collecteur, et s'étendant par dessus de la ou de chaque ouverture d'évacuation ;
  • les moyens de filtrage comprennent des nervures s'étendant radialement par rapport à l'axe du tuyau d'évacuation ;
  • les nervures ont une largeur radiale qui est supérieure à une largeur radiale de l'ouverture d'évacuation, notamment comprise entre 1,5 et 2,5 fois la largeur radiale de cette ouverture ;
  • les nervures ont une hauteur axiale qui est supérieure à une hauteur axiale des organes de guidage du liquide, notamment comprise entre 1,5 et 4 fois cette hauteur ;
  • les nervures comprennent des alvéoles ouverts vers l'ouverture d'évacuation, notamment circonférentiellement traversants ;
  • les nervures comprennent des nervures latérales, qui sont des nervures situées aux extrémités circonférentielles des ouvertures d'évacuation, et les nervures latérales comprennent des alvéoles dont la hauteur axiale est inférieure à la hauteur axiale des autres alvéoles ;
  • entre deux extrémités d'ouverture d'évaluation s'étend un passage radial de liquide non filtré pour permettre un écoulement de liquide vers la zone centrale ; et
  • le dispositif de guidage de liquide et le ou chaque organe de guidage de liquide sont fabriqués d'un seul tenant, de préférence d'une seule pièce et notamment par moulage.
According to particular embodiments, the assembly according to the invention comprises one or more of the following characteristics:
  • for each opening two liquid guide members are provided in the annular space between the cover plate and the flange and extend along a portion of the edge, on each circumferential side of the discharge opening, and each guide member comprises a radial branch extending substantially radially and a circumferential branch extending the radial branch and extending substantially circumferentially with respect to the axis XX of the discharge pipe;
  • the circumferential branch of the or each guide member extends the radial branch of the radially inner side;
  • the length of the radial branch is substantially identical to the length of the circumferential branch;
  • the guide members extend from the surface of the cover plate to the surface of the collar;
  • the discharge opening is of oblong shape whose circumferential extent is greater than the radial extent;
  • the cover plate comprises at least two, preferably three, discharge openings;
  • the cover plate comprises filtering means arranged on the side of the plate opposite the collecting tray, and extending over the or each discharge opening;
  • the filtering means comprise ribs extending radially relative to the axis of the discharge pipe;
  • the ribs have a radial width which is greater than a radial width of the discharge opening, in particular between 1.5 and 2.5 times the radial width of this opening;
  • the ribs have an axial height which is greater than an axial height of the liquid guide members, in particular between 1.5 and 4 times this height;
  • the ribs comprise cells open towards the discharge opening, in particular circumferentially through;
  • the ribs comprise lateral ribs, which are ribs at the ends circumferential evacuation openings, and the lateral ribs comprise cells whose axial height is less than the axial height of the other cells;
  • between two evaluation aperture ends extends a radial passage of unfiltered liquid to allow liquid flow to the central zone; and
  • the liquid guiding device and the or each liquid guiding member are made in one piece, preferably in one piece and in particular by molding.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés, sur lesquels :

  • la Figure 1 est une vue en coupe axiale brisée selon la ligne I-I de la Figure 2 d'un dispositif d'évacuation d'eau selon l'invention;
  • la Figure 2 est une vue de dessus du dispositif d'évacuation selon l'invention;
  • la Figure 3 est une vue de dessous du dispositif de guidage de liquide du dispositif selon l'invention; et
  • la Figure 4 est une vue en perspective du dispositif de guidage de la Figure 3.
The invention will be better understood on reading the description which follows, given solely by way of example and with reference to the appended drawings, in which:
  • the Figure 1 is a broken axial section along the line II of the Figure 2 a water evacuation device according to the invention;
  • the Figure 2 is a top view of the evacuation device according to the invention;
  • the Figure 3 is a bottom view of the liquid guiding device of the device according to the invention; and
  • the Figure 4 is a perspective view of the guiding device of the Figure 3 .

Sur la Figure 1 est représenté un dispositif d'évacuation de liquide, désigné par la référence générale 2.On the Figure 1 there is shown a liquid evacuation device, designated by the general reference 2.

Le dispositif 2 est installé sur un toit 4 horizontal ou à faible pente d'un immeuble, et sert à évacuer des eaux pluviales s'accumulant sur ce toit, lorsque celles-ci dépassent un premier niveau N1.Device 2 is installed on a roof 4 horizontal or low slope of a building, and serves to evacuate rainwater accumulating on this roof, when they exceed a first level N1.

Le dispositif 2 comprend un tuyau d'évacuation 6, un bac collecteur 8 et un dispositif 10 de guidage de liquide.The device 2 comprises a discharge pipe 6, a collecting tank 8 and a liquid guiding device 10.

Le tuyau d'évacuation 6 s'étend verticalement, suivant un axe X-X vertical, et délimite, à son extrémité supérieure, une entrée d'évacuation 12 circulaire de diamètre D1.The discharge pipe 6 extends vertically, along a vertical axis X-X, and delimits, at its upper end, a discharge outlet 12 circular diameter D1.

Dans ce qui suit, les expressions « axial », « radial », et « circonférentiel » seront utilisées par rapport à l'axe X-X.In what follows, the terms "axial", "radial", and "circumferential" will be used with respect to the X-X axis.

Le bac collecteur 8 comprend une cuvette 14. L'entrée d'évacuation 12 débouche au centre du fond de la cuvette 14. Une collerette 16 se raccorde au bord supérieur de la cuvette 14. La collerette 16 s'étend au niveau N1 et forme une surface annulaire, ayant un diamètre intérieur D2 et un diamètre extérieur D3.The collecting tray 8 comprises a bowl 14. The discharge inlet 12 opens at the center of the bottom of the bowl 14. A collar 16 is connected to the upper edge of the bowl 14. The collar 16 extends at the level N1 and forms an annular surface having an inner diameter D2 and an outer diameter D3.

Trois tiges filetées 18 font saillie sur la surface de la collerette 16, du côté opposé au tuyau 6.Three threaded rods 18 project on the surface of the flange 16, on the opposite side to the pipe 6.

Le tuyau 6 et le bac collecteur 8 sont de révolution autour de l'axe X-X.The pipe 6 and the collecting tank 8 are of revolution about the axis X-X.

Le dispositif de guidage 10 sert à guider l'eau dans l'entrée d'évacuation 12 sans inclusion d'air et à retenir des impuretés, telles que des feuilles.The guide device 10 serves to guide the water into the exhaust inlet 12 without inclusion of air and to retain impurities, such as leaves.

Le dispositif de guidage 10 comprend une plaque de recouvrement 20 plane circulaire. Elle s'étend perpendiculairement à l'axe X-X à un niveau N2. Le diamètre de la plaque 20 est identique au diamètre extérieur D3 de la collerette 16. La plaque 20 est écartée de la collerette 16 d'une distance d. La distance d est la distance de filtrage, qui est par exemple de 15 mm. Ainsi, les objets dont la plus petite dimension est supérieure à d sont retenus. Les bords de la plaque 20 et de la collerette 16 délimitent entre eux une bouche d'écoulement 21 s'étendant circonférentiellement autour de l'axe X-X.The guide device 10 comprises a circular flat cover plate 20. It extends perpendicularly to the axis XX at a level N2. The diameter of the plate 20 is identical to the outside diameter D3 of the flange 16. The plate 20 is spaced from the flange 16 by a distance d . The distance d is the filtering distance, which is for example 15 mm. Thus, objects whose smallest dimension is greater than d are retained. The edges of the plate 20 and the flange 16 define between them a flow mouth 21 extending circumferentially about the axis XX.

Comme représenté à la Figure 2, la plaque 20 est constituée d'une zone centrale 22 s'étendant en vis-à-vis de l'entrée d'évacuation 12 et d'une zone périphérique 24 entourant la zone centrale 22. La zone centrale 22 est formée d'une paroi pleine et a un diamètre qui est égal au diamètre D2.As represented in Figure 2 , the plate 20 consists of a central zone 22 extending vis-à-vis the exhaust inlet 12 and a peripheral zone 24 surrounding the central zone 22. The central zone 22 is formed of a solid wall and has a diameter that is equal to the diameter D2.

La zone périphérique 24 est munie de trois ouvertures traversantes d'évacuation 26 ainsi que de trois trous de fixation 28 (Figure 3).The peripheral zone 24 is provided with three through-evacuation openings 26 as well as three fixing holes 28 ( Figure 3 ).

Les ouvertures d'évacuation 26 se trouvent entièrement en face de la collerette 16 et ont une forme oblongue s'étendant le long de la périphérie de la plaque 20. En vue axiale, chaque ouverture a une forme de section d'anneau circulaire. Chaque ouverture a une largeur constante et présente une forme arquée centrée sur l'axe X-X. Les ouvertures 26 sont réparties régulièrement autour de l'axe X-X et chaque ouverture s'étend sur une même plage angulaire α, qui est de 90°. Les ouvertures d'évacuation 26 s'étendent de préférence au total sur une plage angulaire comprise entre 240° et 300°. La largeur L1 mesurée radialement de l'ouverture 26 est inférieure à la largeur radiale de la collerette 16. Le pourtour noté 30 de chaque ouverture 26 est constitué de deux tronçons radiaux d'extrémité 32, 34 et deux tronçons circonférentiels extérieur 36 et intérieur 38.The discharge openings 26 are entirely in front of the flange 16 and have an oblong shape extending along the periphery of the plate 20. In axial view, each opening has a circular ring sectional shape. Each opening has a constant width and has an arcuate shape centered on the X-X axis. The openings 26 are regularly distributed about the axis X-X and each opening extends over the same angular range α, which is 90 °. The discharge openings 26 preferably extend in total over an angular range of between 240 ° and 300 °. The width L1 measured radially of the opening 26 is smaller than the radial width of the flange 16. The notch 30 of each opening 26 consists of two radial end sections 32, 34 and two circumferential outer 36 and inner 38 sections. .

Des saillies de guidage 40 de liquide font saillie depuis la face de la plaque 20 tournée vers le bac 8. Elles s'étendent jusqu'à la collerette 16 (Figure 1) au travers de la bouche 21. Comme illustré sur la Figure 3, chaque ouverture 26 est munie de deux de ces saillies 40. Chaque saillie 40 comprend une branche radiale 44, s'étendant le long du tronçon radial d'extrémité 32, 34 correspondant, ainsi qu'une branche circonférentielle 48, s'étendant le long d'une partie du tronçon de pourtour circonférentiel intérieur 38. La branche circonférentielle 48 est adjacente à la branche radiale 44. La longueur des deux branches 44,48 est sensiblement identique de telle sorte que chaque saillie 40 a, en vue axiale, une forme générale de L.Liquid guiding protrusions 40 protrude from the face of the plate 20 facing the tray 8. They extend to the flange 16 ( Figure 1 ) through the mouth 21. As illustrated on the Figure 3 each opening 26 is provided with two of these projections 40. Each projection 40 comprises a radial branch 44, extending along the corresponding radial end section 32, 34, and a circumferential branch 48, extending along a portion of the inner circumferential circumferential portion 38. The circumferential branch 48 is adjacent to the radial branch 44. The length of the two branches 44, 48 is substantially identical to so that each projection 40 has, in axial view, a general shape of L.

Le dispositif de guidage 10 comprend en outre des moyens de filtrage adaptés pour filtrer le liquide s'écoulant dans les ouvertures 26. Comme montré sur les Figures 2 et 4, ces moyens de filtrage comprennent une pluralité de nervures 50 radiales disposées sur la plaque 20 et faisant saillie axialement du côté opposé au bac 8.The guiding device 10 further comprises filtering means adapted to filter the liquid flowing in the openings 26. As shown in FIGS. Figures 2 and 4 these filtering means comprise a plurality of radial ribs 50 arranged on the plate 20 and projecting axially from the opposite side to the tank 8.

Les nervures 50 s'étendent par-dessus les ouvertures d'évacuation 26 et à une distance mutuelle d, à leurs extrémités radialement extérieures. Cette distance d est donc égale à la distance de filtrage. La largeur radiale L2 des nervures 50 est de préférence située entre 1,5 fois et 2,5 fois la largeur radiale L1 de l'ouverture d'évacuation 26. En l'occurrence, la largeur radiale L2 est sensiblement deux fois la largeur L1.The ribs 50 extend over the discharge openings 26 and at a mutual distance d at their radially outer ends. This distance d is therefore equal to the filtering distance. The radial width L2 of the ribs 50 is preferably between 1.5 times and 2.5 times the radial width L1 of the discharge opening 26. In this case, the radial width L2 is substantially twice the width L1 .

La hauteur axiale H de chaque nervure 50 est comprise entre 1,5 fois et 4 fois la hauteur axiale d des saillies 40. L'extrémité supérieure axiale des nervures 50 définit un niveau N3.The axial height H of each rib 50 is between 1.5 times and 4 times the axial height d of the projections 40. The axial upper end of the ribs 50 defines a level N3.

Chaque nervure 50 est munie d'un alvéole 52 axialement ouvert vers l'ouverture d'évacuation et circonférentiellement traversant.Each rib 50 is provided with a cell 52 axially open towards the discharge opening and circumferentially through.

Les nervures 50 de chaque ouverture 26 comprennent deux nervures latérales 50A, qui sont disposées à l'extrémité circonférentielle de chaque ouverture 26. La hauteur de l'alvéole 52A de chacune de ces nervures 50A est égale à d, donc identique à la distance de filtrage.The ribs 50 of each opening 26 comprise two lateral ribs 50A, which are disposed at the circumferential end of each opening 26. The height of the cell 52A of each of these ribs 50A is equal to d , therefore identical to the distance of filtering.

La hauteur des alvéoles 52A de ces nervures latérales est inférieure à la hauteur des alvéoles 52 des nervures 50 situées entre les nervures latérales 50A.The height of the cells 52A of these lateral ribs is less than the height of the cells 52 of the ribs 50 located between the lateral ribs 50A.

Les alvéoles 52, 52A permettent de réduire la quantité de matière nécessaire pour la fabrication du dispositif de guidage 10.The cells 52, 52A make it possible to reduce the quantity of material necessary for the manufacture of the guiding device 10.

Les nervures latérales 52A de deux ouvertures 26 adjacentes sont disposées à une distance mutuelle supérieure à la distance de filtrage d. Le dispositif de guidage forme ainsi un passage radial de liquide 54 dépourvu de moyens de filtrage. Lorsque le niveau de liquide est situé entre les niveaux N2 et N3, du liquide non filtré peut s'écouler dans la zone centrale 22 et est filtré par la partie radialement intérieure des nervures 50.The lateral ribs 52A of two adjacent openings 26 are disposed at a mutual distance greater than the filtering distance d . The guiding device thus forms a radial passage of liquid 54 without filtering means. When the liquid level is located between the levels N2 and N3, unfiltered liquid can flow into the central zone 22 and is filtered by the radially inner portion of the ribs 50.

Le dispositif 2 comprend par ailleurs trois écrous 60 vissés sur les tiges 18 et serrant le dispositif de guidage contre la collerette 16.The device 2 also comprises three nuts 60 screwed onto the rods 18 and clamping the guiding device against the flange 16.

Le dispositif de guidage 10 est fabriqué par moulage en une seule pièce.The guide device 10 is manufactured by molding in one piece.

Le dispositif d'évacuation est fabriqué de la manière suivante :

  • Le dispositif de guidage 10 est moulé d'un seul tenant.
  • Le bac collecteur 8 est soudé à l'extrémité supérieure du tuyau d'évacuation 6.
  • Ensuite, le dispositif de guidage 10 est posé sur la collerette 16 et fixé sur celle-ci par les écrous 60.
  • On constate que l'ensemble 2 est facile et rapide à monter.
  • L'ensemble d'évacuation fonctionne de la façon suivante.
  • Les nervures 50 forment une grande surface de filtration.
The evacuation device is manufactured as follows:
  • The guiding device 10 is molded in one piece.
  • The collecting pan 8 is welded to the upper end of the discharge pipe 6.
  • Then, the guiding device 10 is placed on the flange 16 and fixed on it by the nuts 60.
  • It is found that the assembly 2 is easy and quick to assemble.
  • The evacuation assembly operates as follows.
  • The ribs 50 form a large filtration surface.

Lorsque le niveau d'eau est situé au-dessus de la collerette 16 et au-dessous de la plaque 20, donc entre le niveau N1 et le niveau N2, l'eau s'écoule de manière laminaire entre la collerette 16 et la plaque 20 et est évacuée par l'entrée 12. Dans cette condition de fonctionnement, les ouvertures d'évacuation 26 et les nervures 50 ne sont pas en contact avec de l'eau.When the water level is located above the flange 16 and below the plate 20, so between the level N1 and the level N2, the water flows laminarly between the flange 16 and the plate 20 and is discharged through the inlet 12. In this operating condition, the discharge openings 26 and the ribs 50 are not in contact with water.

Lorsque le niveau d'eau est situé au dessus de la plaque 20, mais au-dessous de l'extrémité supérieure des nervures 50, donc entre les niveaux N2 et N3, une première partie E1 de l'eau s'écoule radialement entre la collerette 16 et la plaque 20. Une deuxième partie E2 s'écoule radialement vers l'intérieur à travers les interstices entre les nervures 50. Une troisième partie E3 s'écoule radialement vers l'intérieur à travers les passages 54 puis radialement vers l'extérieur à travers les interstices entre les nervures 50.When the water level is located above the plate 20, but below the upper end of the ribs 50, therefore between the levels N2 and N3, a first portion E1 of the water flows radially between the flange 16 and the plate 20. A second portion E2 flows radially inwardly through the interstices between the ribs 50. A third portion E3 flows radially inwardly through the passages 54 and radially to the outside through interstices between ribs 50.

Après avoir passé les interstices entre les nervures 50, l'eau s'écoule axialement à travers les ouvertures d'évacuation 26 puis est déviée radialement vers l'axe X-X (flèche E).After passing the interstices between the ribs 50, the water flows axially through the discharge openings 26 and is deflected radially towards the X-X axis (arrow E).

Dans le cas où le niveau d'eau est supérieur au niveau E3, le côté de chaque nervure 50 situé à l'opposé de la plaque 20 contribue également au filtrage.In the case where the water level is higher than the level E3, the side of each rib 50 situated opposite the plate 20 also contributes to the filtering.

Les branches radiales 44 des saillies 40 empêchent la génération d'un vortex, tandis que les branches circonférentielles 48 conduisent à une répartition uniforme de la pression d'eau sur la plaque 20. En conséquence, l'eau s'écoule de manière laminaire entre la plaque 20 et la collerette 16 et n'entraîne pas d'air dans le tuyau 6. Le dispositif 2 a donc un fonctionnement dit siphoïde.The radial branches 44 of the projections 40 prevent the generation of a vortex, while the circumferential branches 48 lead to a uniform distribution of the water pressure on the plate 20. As a result, the water flows laminarly between the plate 20 and the collar 16 and does not cause air in the pipe 6. The device 2 therefore has a so-called siphoid operation.

Le dispositif 2 selon l'invention est facile à fabriquer et à assembler grâce à la fabrication d'une seule pièce du dispositif de guidage 10. De plus, le dispositif 2 permet d'atteindre un débit important d'eau pour un diamètre donné du tuyau grâce à l'écoulement laminaire du liquide et à la surface filtrante importante.The device 2 according to the invention is easy to manufacture and to assemble thanks to the manufacture of a single piece of the guiding device 10. In addition, the device 2 achieves a high flow rate of water for a given diameter of the pipe thanks to the laminar flow of the liquid and the large filtering surface.

La disposition des nervures 50 facilite en outre le nettoyage du dispositif.The arrangement of the ribs 50 further facilitates the cleaning of the device.

Par ailleurs, le dispositif de guidage de liquide 10 selon l'invention permet d'utiliser des tuyaux de diamètres différents tout en gardant de bonnes propriétés d'évacuation.Moreover, the liquid guiding device 10 according to the invention makes it possible to use pipes of different diameters while keeping good evacuation properties.

Claims (16)

  1. Device for discharging a liquid, in particular rainwater, of the type comprising a discharge pipe (6) which extends along an axis (X-X) and which forms a discharge inlet (12), a collection vessel (8) which extends around the discharge inlet (12) and which is provided with a collar (16), and a liquid guiding device (10) which comprises a covering plate (20), the covering plate (20) comprising a solid central zone (22) which covers the discharge inlet (12), the covering plate (20) further comprising a peripheral zone (24) which surrounds the central zone (22) and which extends opposite of the collar (16),the device for discharging a liquid being characterised in that in the peripheral zone (24) there is provided at least one liquid discharge through-hole (26) which delimits an edge (30),and in that for each hole (26) at least one liquid guiding element (40) is provided in the annular space between the covering plate (20) and the collar (16), the guiding element (40) extending along a portion of the edge (30) and comprising a radial branch (44) which extends substantially radially relative to the axis (X-X) of the discharge pipe(6) and a circumferential branch (48) which is an extension of the radial branch (44) and which extends substantially circumferentially relative to the axis (X-X) of the discharge pipe (6).
  2. Discharge device according to claim 1, characterised in that for each hole (26) two liquid guiding elements (40) are provided in the annular space between the covering plate (20) and the collar (16) and extend along a portion of the edge (30), at each circumferential side of the discharge hole (26), and in that each guiding element (40) comprises a radial branch (44) which extends substantially radially and a circumferential branch (48) which is an extension of the radial branch (44) and which extends substantially circumferentially relative to the axis X-X of the discharge pipe (6).
  3. Discharge device according to claim 1 or 2, characterised in that the circumferential branch (48) of the or each guiding element is an extension of the radial branch (44) at the radially inner side.
  4. Discharge device according to any one of claims 1 to 3, characterised in that the length of the radial branch (44) is substantially identical to the length of the circumferential branch (48).
  5. Discharge device according to any one of claims 1 to 4, characterised in that the guiding elements (40) extend from the surface of the covering plate (20) as far as the surface of the collar (16).
  6. Discharge device according to any one of claims 1 to 5, characterised in that the discharge hole (26) has an oblong shape whose circumferential extent is greater than the radial extent.
  7. Discharge device according to any one of claims 1 to 6, characterised in that the covering plate (20) comprises at least two, preferably three discharge holes (26).
  8. Discharge device according to any one of claims 1 to 7, characterised in that the covering plate (20) comprises filtering means (50) which are arranged at the side of the plate (20) opposite the collection vessel (8) and which extend above the or each discharge hole (26).
  9. Discharge device according to claim 8, characterised in that the filtering means comprise ribs (50, 50A) which extend radially relative to the axis (X-X) of the discharge pipe(6).
  10. Discharge device according to claim 9, characterised in that the ribs (50, 50A) have a radial width (L2) which is greater than a radial width (L1) of the discharge hole (26), in particular between 1.5 and 2.5 times the radial width of this hole.
  11. Discharge device according to claim 9 or 10, characterised in that the ribs (50, 50A) have an axial height (H) which is greater than an axial height (d) of the liquid guiding elements (40), in particular between 1.5 and 4 times this height.
  12. Discharge device according to any one of claims 9 to 11, characterised in that the ribs (50, 50A) comprise cells (52, 52A) which are open towards the discharge hole (26), in particular circumferentially extending through-holes.
  13. Discharge device according to claim 12, characterised in that the ribs comprise lateral ribs (50A) which are ribs which are located at the circumferential ends of the discharge holes (26), and in that the lateral ribs (50A) comprise cells (52A) whose axial height (d) is less than the axial height of the other cells (52).
  14. Discharge device according to any one of claims 8 to 13, characterised in that a radial passage (54) for non-filtered liquid extends between two ends of the discharge hole (26) in order to allow liquid to flow towards the central zone (22).
  15. Discharge device according to any one of claims 1 to 14, characterised in that the liquid guiding device (10) and the or each liquid guiding element (40) are produced in one piece, preferably integrally and in particular by means of moulding.
  16. Liquid guiding device (10) for a liquid discharge device according to the preceding claims, comprising a covering plate (20), the covering plate (20) comprising a solid central zone (22) which is intended to cover the discharge inlet (12) of a discharge pipe (6), the covering plate (20) comprising a peripheral zone (24) which surrounds the central zone (22) and which is suitable for extending in the assembled position in the discharge device opposite from a collar (16) of a collection vessel (8),the guiding device being characterised in that in the peripheral zone (24) there is provided at least one liquid discharge through-hole (26) which delimits an edge (30), and in that for each hole (26), at least one liquid guiding element (40) is provided, the guiding element (40) extending along a portion of the edge (30) and comprising a radial branch (44) which is suitable for extending in the assembled position in the discharge device substantially radially relative to said axis (X-X) of the discharge pipe (6) and a circumferential branch (48) which is an extension of the radial branch (44) and which is suitable for extending in the assembled position in the discharge device substantially circumferentially relative to the axis (X-X) of the discharge pipe (6).
EP04805426A 2003-11-21 2004-11-09 Liquid evacuation device and corresponding liquid guiding device Active EP1704289B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04805426T PL1704289T3 (en) 2003-11-21 2004-11-09 Liquid evacuation device and corresponding liquid guiding device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0313685A FR2862676B1 (en) 2003-11-21 2003-11-21 LIQUID EXHAUST DEVICE AND CORRESPONDING LIQUID GUIDE DEVICE
PCT/FR2004/002883 WO2005061815A1 (en) 2003-11-21 2004-11-09 Liquid evacuation device and corresponding liquid guiding device

Publications (2)

Publication Number Publication Date
EP1704289A1 EP1704289A1 (en) 2006-09-27
EP1704289B1 true EP1704289B1 (en) 2011-08-03

Family

ID=34531190

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04805426A Active EP1704289B1 (en) 2003-11-21 2004-11-09 Liquid evacuation device and corresponding liquid guiding device

Country Status (16)

Country Link
EP (1) EP1704289B1 (en)
CN (1) CN100432351C (en)
AT (1) ATE518999T1 (en)
AU (1) AU2004303546B2 (en)
BR (1) BRPI0416641B1 (en)
DK (1) DK1704289T3 (en)
ES (1) ES2367486T3 (en)
FR (1) FR2862676B1 (en)
HK (1) HK1089804A1 (en)
IS (1) IS8514A (en)
NO (1) NO338377B1 (en)
NZ (1) NZ547368A (en)
PL (1) PL1704289T3 (en)
PT (1) PT1704289E (en)
RU (1) RU2347871C2 (en)
WO (1) WO2005061815A1 (en)

Families Citing this family (11)

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Publication number Priority date Publication date Assignee Title
DE102004024904A1 (en) * 2004-05-19 2005-12-15 Wavin B.V. Water drainage for sealed flat surfaces
FR2927638A1 (en) * 2008-02-15 2009-08-21 Eroa Sarl DEVICE FOR REGULATING THE EVACUATION OF RAW WATER FROM A ROOF SURFACE
SG165204A1 (en) * 2009-03-24 2010-10-28 Fast Flow Ltd A pressurised rain water drainage outlet
HUE032845T2 (en) * 2010-02-15 2017-11-28 Aco Severin Ahlmann Gmbh & Co Kg Height-adjustable floor drain with coupling ring provided with channel for seepage water
IT1403885B1 (en) * 2010-11-26 2013-11-08 Valsir Spa DRAINAGE DEVICE FOR WATER DRAIN PITCHES, IN PARTICULAR FOR DRAINAGE SYSTEMS OF BUILDING ROOFS, AND WATER DRAINAGE COCKPIT PROVIDED WITH SUCH AN INTERLOCKING DEVICE
US8496810B2 (en) * 2011-05-04 2013-07-30 Rainflex, Llc Rainwater collection, storage, and distribution system
DE102015102827A1 (en) * 2015-02-27 2016-09-01 ACO Severin Ahlmann GmbH & Co Kommanditgesellschaft Emergency drain
CH710745B1 (en) 2015-03-27 2016-12-15 Strub & Blaser Ag A method of manufacturing a feedthrough.
DE102015216767A1 (en) * 2015-09-02 2017-03-02 Wavin B.V. Water drain and manufacturing process and catcher
ES2856956B2 (en) * 2020-03-27 2022-02-07 El Mundo Del Sifonico S L Self-cleaning self-priming siphon drain
FR3121695A1 (en) 2021-04-12 2022-10-14 Saint Gobain Pam Liquid evacuation assembly and corresponding installation

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI52612C (en) 1975-12-30 1977-10-10 Kontekla Oy Roof drain or similar for a building.
SE451610B (en) * 1983-04-14 1987-10-19 Kontekla Oy SKREPSIL
FI88328C (en) * 1991-10-14 1993-04-26 Megsent Insinoeoeritoimisto Process of a roof dewatering device and a dewatering device
GB2269402B (en) 1992-08-07 1996-05-01 Fullflow Systems Ltd Drain outlet for a syphonic or full flowing drainage system
FR2747144B1 (en) 1996-04-05 1998-05-15 Pont A Mousson DEVICE FOR DRAINING RAINWATER FROM THE SURFACE OF A BUILDING ROOF
EP0816586A1 (en) * 1996-07-06 1998-01-07 Adolf Zumbrink Roof drainage device

Also Published As

Publication number Publication date
RU2006121984A (en) 2007-12-27
RU2347871C2 (en) 2009-02-27
DK1704289T3 (en) 2011-11-21
FR2862676A1 (en) 2005-05-27
NO338377B1 (en) 2016-08-15
CN1902366A (en) 2007-01-24
CN100432351C (en) 2008-11-12
FR2862676B1 (en) 2006-01-20
ATE518999T1 (en) 2011-08-15
HK1089804A1 (en) 2006-12-08
NO20062382L (en) 2006-07-17
EP1704289A1 (en) 2006-09-27
WO2005061815A1 (en) 2005-07-07
IS8514A (en) 2006-06-19
PT1704289E (en) 2011-11-21
AU2004303546A1 (en) 2005-07-07
AU2004303546B2 (en) 2009-05-14
BRPI0416641B1 (en) 2015-05-26
ES2367486T3 (en) 2011-11-03
BRPI0416641A (en) 2007-01-16
PL1704289T3 (en) 2012-03-30
NZ547368A (en) 2009-03-31

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