FI97278C - Board water drain for water treatment pool - Google Patents

Description

97278

OVERFLOWING GUTTER IN THE WATER TREATMENT POOL BRÄDDVATTENRÄNNA FÖR VATTENRENINGS BAS SANG

The invention relates to an overflow gutter, preferably an overflow gutter used in water treatment plants.

In water treatment plants, for example, overflow edges are attached to the edges of the clarification and aeration tanks, over which the clarified water or dirt water is directed. The overflow gutter or edge gutter is elongated and adapts to the shapes of the edges of the clarification tanks.

The overflow gutter consists of a bottom and parallel spaced-apart walls to which water is directed into the gutter. At the top of the walls, triangular holes can be formed, usually similar, e.g. Now when the water flows over the edge it usually comes at such a high speed that its falling into the gutter makes such a loud noise that it can damage the ears. The overflow gutter is prone to contamination, especially at those points where water does not touch the wall surface.

The gutter structure according to the invention provides a solution; improvement in the above disadvantages. To achieve this, the overflow chute according to the invention is characterized by what is stated in the characterizing part of claim 1.

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An advantage of the invention can be considered that the noise caused by water can be eliminated. The overflow gutter is kept clean.

In the following, the invention will be explained in detail with reference to the accompanying drawing.

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Figure 1 shows a side view of the structure of an overflow gutter according to the invention.

Figure 2 shows a section of Figure 1 from A-A.

Figure 3 shows a section of Figure 1 from C-C.

Figure 4 shows a top view of the trough of Figure 3.

Figure 5 shows an isometric view of the trough.

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Figure 1 shows a side view of the overflow chute 1. The two walls 3, 4 of the trough protrude from the bottom 2 upwards in substantially parallel direction. Outside the trough, at a distance from each other, fastening frames 6 are placed.

Figures 2 and 3 show cross-sections of the trough from points A-A and C-C in Figure 1. The bottom 2 of the trough can consist, as in the figure, of a V-shaped bottom with a V-angle of about 112 °. Other shaped soles are also possible. The walls 3, 4 consist of wall portions 3A, 4A facing upwards from the base 2, in the upper parts of which the wall curves arcuately, e.g. with a radius of 70 mm, away from the longitudinal axis of the trough so that the walls 3, 4 are horizontal at the top and extended parallel upwards by walls 3B and 4B, which include openings 5 for controlling the flow of water. When the trough is generally cylindrically concave, the upper part of the trough walls 3, 4 is formed substantially arcuately convex.

In Figure 3, the gutter mounting and stiffening frame 6 surrounds the outer surface of the gutter. The frame can be attached to the edge of the basin by means of an L-shaped mounting plate 7. Figure 4 shows the arrangement of the fastening and stiffening element 6 and the fastening plate 7 in the trough seen from above.

Figure 5 shows the overflow chute 1 in an isometric view. When the chute 1 is fixed to the edge of the basin, the water is directed through the openings 5 in the walls 3B and 4B to the chute 1. The sides of the triangular openings I are formed of equal length. Flowing material entering the trough is directed away, e.g. from the end of the trough 8.

Thanks to the arched wall part, the water coming from the basin does not fall to the bottom of the gutter but flows along the curved inner side of the gutter to the bottom of the gutter or to the liquid surface of the gutter. This avoids loud noises due to water falling. The arc is usually essentially a quarter arc of a circle. The upper part of the wall of the overflow gutter has, for example, a radius of curvature of about 50 to 100, preferably 50 to 90, even more preferably 60 to 80 mm.

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The invention has been described with reference to only one preferred embodiment thereof. Various modifications are possible within the scope of the invention as defined by the appended claims. The curvature of the wall arc can be calculated to be optimal for different flow rates and volumes. The other structure of the gutter, e.g. the bottom, can be U-shaped. The gutter can be implemented as an overflow edge, in which case its bottom is formed as a basin.

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Claims (7)

97278 A water treatment basin overflow gutter with a base (2) projecting from the walls (3, 4), at least the upper part of the wall (3, 4) of the gutter (1) adjacent to the basin is formed with an arcuate convex surface, the wall (3, 4) being connected to a water a baffle plate (3B, 4B) for regulating the inflow of water from the basin, characterized in that the upper part has a curvature of about 50 to 100 mm for guiding the flow of fluid from the basin on the inner surface of the wall (3, 4). Overflow gutter according to Claim 1, characterized in that the wall (3, 4) of the overflow gutter is continuous from the overflow edge to the bottom (2) of the gutter so that water flows along it. Overflow gutter according to Claim 1, characterized in that the overflow gutter (1) forms a basin. Overflow gutter according to Claim 1, characterized in that the upper part of the wall (3, 4) of the overflow gutter has a radius of curvature of about 50 to 100, preferably 50 to 90, even more preferably 60 to 80 mm. Overflow gutter according to Claim 4, characterized in that the upper part of the wall (3, 4) of the overflow gutter has a radius of curvature of approximately 70 mm. Overflow gutter according to Claim 1, characterized in that the arcuate part of the wall (3, 4) of the overflow gutter is a quarter of a circle. Overflow gutter according to Claim 1, characterized in that a water guide plate (3b, 4B) with guide holes (5) is connected to the arcuate part of the wall (3, 4) of the overflow gutter. ) to regulate the inflow of water from the basin. 97278 1. Falling ground for waterproofing bases, groundwater level (2) for groundwater operation (3, 4), overhead water supply (3, 4) and other basement facilities (1) for a single convex conveyor (3, 4) with an extension of the wattage (3B, 4B) for the wattage end of the subwoofer, the pivoting of the wattage is not less than 50 to 100 mm det flytande ämnet frän bassängen pä väggens (3, 4) inre yta. 2. A transverse embodiment according to claim 1, which can be used as an inverting device (3, 4) and in particular an inverted container (2) as shown in the preamble. 3. Överströmningsränna enligt patentkrav 1, kännetecknad av att överströmningsrännan (1) bildar en bassäng. 4. A cross-section according to claim 1, which comprises a cross-sectional area (3, 4) having a cross-sectional range of about 50 to 100, a cross-section of 50 to 90, and a cross-section of 60 to 80 mm. 5. Överströmningsränna enligt patentkrav 1, känneteck- ;;; n a d av att övre delen av överströmningsrännans vägg (3, 4) är • · *; * · ’account with a crimping distance of about 70 mm. t t «• · · 6. The method of application of claim 1, which is based on the form of the invention, comprises: (3, 4) a quarterly circle. • · · • · · • «·. 7. A transverse embodiment according to claim 1, which can be used as an embodiment of a transverse force (3, 4) according to the invention (3B, 4B), wherein the column (5) is used to regulate the water end.