Overflow chamber

E - Fixed Constructions – 03 – F

Patent

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Details

E03F 5/12 (2006.01)

Patent

CA 2463165

An overflow chamber (2) is provided for use in a combined sewer overflow. An inlet (12) and an outlet (14) open into the chamber (2) below a screen (20), and an overflow outlet (15) opens into the chamber above the screen. Baffles (26) are provided underneath the screen (20) across the general flow of storm water. In storm conditions, the storm water in the chamber (2) will reach the level of the screen (20), which traps aesthetically offensive material and gross solids, leaving the water to flow through the screen (20) to the overflow outlet (15). The baffles (26) circulate the storm water, and this dislodges material accumulated on the underside of the screen (20) and so helps to prevent blinding of the screen (20) in storm conditions.

La présente invention concerne une chambre (2) de trop-plein utilisée dans un déversoir d'orage. Un orifice d'entrée (12) et un orifice de sortie (14) s'ouvrent sur la chambre (2) en dessous d'une toile métallique (20), et un orifice de sortie de trop-plein (15) s'ouvrent sur la chambre au-dessus de la toile métallique. Des chicanes (26) sont disposées sous la toile métallique (20) à travers l'écoulement général des eaux d'orage. Lorsqu'un orage se produit, les eaux d'orage accumulées dans la chambre (2) atteignent le niveau de la grille métallique (20), qui retient les matériaux visuellement offensifs et les solides bruts et permet à l'eau de s'écouler à travers la toile métallique (20) jusqu'à l'orifice de sortie de trop-plein (15). Les chicanes (26) font circuler les eaux d'orage, ce qui expulse les matériaux accumulés sur la partie inférieure de la toile métallique (20) et empêche ainsi l'obturation de la toile métallique (20) en cas d'orage.

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