Triangular weir feed channel as an elevated, adjustable, multifunctional stainless steel channel for use in retention soil filter systems

Abstract

Triangular weir feed channel made of stainless steel for use in retention soil filter systems, with the components according to Fig. 1 to Fig. 15, characterized in that a walkable modular system consisting of height-adjustable feet, weir channel elements with height-adjustable modifiable weir plates with feed mode and transport mode, variable transport channel elements, channel elements with stiffening edges, with connection brackets on concrete structures and end plates with and without flushing function can be implemented as a feed system modularly adapted to the required feed conditions of the retention soil filter surfaces.

Description

[0001] The invention describes a modular system of a triangular weir feed channel (hereinafter referred to as feed channel) for use in further wastewater treatment using reed-covered retention soil filter systems and is part of the feed system of a retention soil filter basin.

[0002] The feed trough is a stainless steel trough with adjustable feet and defined openings. A sheet metal plate with a triangular cutout is mounted in front of the trough as an additional adjustable weir. Slotted holes in the trough body and in the weir plates allow for compensation of unevenness in the plastic sealing membrane or concrete base slab caused by construction. Furthermore, the feed trough can be installed with a defined slope to facilitate automated or manual cleaning. The design of the slots and cutouts in the weir plates enables simple and precise zoning / control of the feed onto the filter surface.

[0003] The adjustable feet of the channel allow for the creation of a gradient, ensuring that during cleaning, the rinse water is directed precisely. The elongated holes in the weir plates are designed to compensate for variations in the weir overflow height, even with a longitudinal gradient in the channel, thus ensuring a uniform distribution of nutrients across the retention soil filter area. This even distribution of nutrients from the wastewater across the filter surface promotes stable and consistent reed growth.

[0004] The feet of the feed trough are screwed onto a PE plate, so that they can be placed without damage on the plastic sealing membranes of the retention soil filter systems in earthworks or on the concrete base of retention soil filter systems in reinforced concrete construction.

[0005] The feet (see drawings) Fig. 1 to Fig. 3) consist of two stainless steel standpipes (6) into which an adjusting screw (9) is connected via a threaded connection (8). The stainless steel standpipes (6) are connected to the PE base plate (5) via a stainless steel base plate (7).

[0006] A bent stainless steel sheet box (10) for receiving the channel body is connected to the support feet via the adjusting screws (9). The support box is made of a stainless steel sheet (11). Four cuts (3) are made in the sheet to create the channel support, and the sheet metal parts are bent at a 90° angle (2) or bent for stiffening and accident protection (1). Two holes (4) for receiving the adjusting screw (9) are provided in the base of the sheet metal box.

[0007] The channel bodies (see Fig. 4 to Fig. 6) is made from a stainless steel sheet (12). The sheet is cut out for the stabilizing bends (13) and for the weir sill areas (14). The weir sill area is cut out analogously to the angle of the triangular weir (14). For longitudinal stiffening of the channel body, it is stabilized with two bends (15). The channel body is formed by two further bends (18).

[0008] For the installation of the triangular weir plates (see Fig. 8) Four horizontally oriented elongated holes (16) are cut into the sheet metal. Connecting elements are used to connect the channel elements to each other (see Fig. 7) which are screwed together through pre-drilled holes in the channel (17) and elongated holes in the connecting element (20).

[0009] The sheet metal of the triangular weir sill (22) is cut out analogously to the cut of the weir sill area (14) (23). For the assembly of the triangular weir plate ( Fig. 8) on the stainless steel channel ( Fig. 5) There are elongated holes (24) through which the weir plates are screwed to the elongated holes of the channel (16).

[0010] The triangular weir plates can be used in both loading mode (see Fig. 9) as well as in non-loading mode (see Fig. 10) be installed.

[0011] The connection of the channel in the inlet area of ​​an inlet and distribution structure (EBwVBw) is made via an angled wall bracket (see Fig. 11), which is attached to the concrete wall of the EBwVBw via pre-drilled holes (28) using chemical anchors.

[0012] The end of the channel can be used for an automated flushing function (see Fig. 12) with a cover plate (29) with a flushing nozzle (30), or for manual cleaning of the channel with a simple cover plate ( Fig. 13) be closed. The end plate is welded onto the final channel element at the factory.

[0013] In summary, in addition to the advantages listed above, the invention offers the following key advantages: • Modular design and accessible during operation • Can be installed without damage on a plastic sealing membrane • The design of the channel allows for the continuous installation of the percolating gravel and filter sand even below the channel structure. • with adjustable bottom slope for easier flushing and cleaning of the system • with adjustable weir sills that can also compensate for the longitudinal gradient of the flushing function • Feet can be adjusted during operation • Weir plates can be easily readjusted during operation • Weir plates can be reversed in the same position with a few simple steps, so that no feeding takes place at this point, thus enabling targeted, simple and pragmatic control of the feeding areas. • A flushing line can be connected to the end plate, enabling automated flushing of the channel with fresh water or with water from the measuring shaft. Reference symbol list 1 edge 2. Folding 3 cut 4 round openings 5 PE base plate 6 stainless steel standpipes 7 stainless steel base plate 8 stainless steel threads / nuts 9 stainless steel adjusting screws 10 stainless steel sheets 11 Rounding 12 stainless steel sheets 13. Perpendicular section 14. Triangular cut 15 Edge stiffening 16 elongated holes for weir plate mounting 17 round openings, connecting tab assembly 18 Edge of the channel body 19 stainless steel sheet connecting tabs 20 elongated holes connecting gutter elements 21. Edge connecting tab 22 stainless steel sheets 23. Cut in triangular shape 24 elongated slots for weir plate mounting on channel body 25 stainless steel sheets 26 cut 27 edges wall bracket 28 openings, wall bracket for wall mounting 29 stainless steel end plates 30 stainless steel flushing nozzles

Claims

[1] Triangular weir feed channel made of stainless steel for use in retention soil filter systems, with the components according to Fig. 1 to Fig. 15, characterized by , that a walkable modular system consisting of height-adjustable feet, weir channel elements with height-adjustable modifiable weir plates with feeding mode and transport mode, variable transport channel elements, channel elements with stiffening edges, with connection brackets on concrete structures and end plates with and without flushing function can be implemented as a feeding system modularly adapted to the required feeding conditions of the retention soil filter surfaces. [2] Channel according to claim 1, characterized by that the feet are made of Fig. 1 to Fig.3 are height-adjustable via the stainless steel adjusting screws (9) in conjunction with the stainless steel nut (8) mounted in the stainless steel standpipe (6) and a longitudinal slope in the channel can be adjusted for rinsing and cleaning purposes and unevenness in the installation surface can be compensated for. [3] Channel according to claim 1, characterized by that the feet are made of Fig. 1 to Fig. 3 have a PE base plate (5) which enables non-destructive installation on a plastic sealing membrane on which the stainless steel base plates (7) of the stainless steel standpipe (9) are positively connected. [4] Channel according to claim 1, characterized by , that the gutter support is produced from a stainless steel sheet (10) with rounded corners (11) by stiffening bends (1) and cuts (3) in conjunction with bends (2) without material waste and is positively connected to the stainless steel adjusting screw (9) via the holes (4). [5] Channel according to claim 1, characterized by , that the feet ( Fig. 1 to Fig. 3) correspond to the height of the filter structure and, after the introduction of the drainage gravel, the drainage layer and the filter sand of the filter body, the weight of the filter body fixes the feet via the base plate (5) and forms a position- and tip-proof structure. [6] Channel according to claim 1, characterized by , that due to the raised design of the feed trough via the support feet ( Fig. 1 to Fig. 3) continuous introduction of the drainage gravel of the drainage layer and the filter sand of the filter body is enabled and disturbance zones in the filter body are avoided. [7] Channel according to claim 1, characterized by , that via a modular system of stainless steel channel elements with weir function ( Fig. 4 and Fig. 5) and stainless steel channel elements with transport function ( Fig. 14 and Fig.15) the most diverse loading load cases can be implemented. [8] Channel according to claim 1, characterized by , that a stainless steel sheet (12) can be used to create a stainless steel channel element with weir function ( Fig. 4 and Fig. 5) is produced by stiffening and shaping edges (15+18) and cuts (13+14). [9] Channel according to claim 1, characterized by , that a stainless steel sheet (12) can be used to create a stainless steel channel element with transport function ( Fig. 14 and Fig. 15) stiffening and shaping edges (15+18) are produced in a dimensionally stable manner. [10] Channel according to claim 1, characterized by , that the intersection (14) of Fig. 4 to the cut (23) from Fig. 8 is adjusted and the triangular weir can thus be adjusted to meet the required hydraulic boundary conditions for feeding the filter surface. [11] Channel according to claim 1, characterized by, that the stainless steel channel elements with feeding function have variable stainless steel weir sleepers ( Fig. 8), made from a stainless steel sheet (22), are used. [12] Channel according to claim 1, characterized by , that in the case of the stainless steel channel elements with feeding function ( Fig. 5) the stainless steel weir sleeper plate ( Fig. 8) with active function ( Fig. 9) can be mounted through the elongated slot (24) to selectively apply pressure to the filter surface area. [13] Channel according to claim 1, characterized by , that in the case of the stainless steel channel elements with feeding function ( Fig. 5) the stainless steel weir sleeper plate ( Fig. 8) with passive function ( Fig. 10) can be mounted through the elongated slot (24) to avoid impacting the filter surface area. [14] Channel according to claim 1, characterized by , that in the case of the stainless steel channel elements with feeding function ( Fig. 5) the stainless steel weir threshold ( Fig. 8) can be precisely aligned by means of the elongated slots (24) and (16), the longitudinal slope from claim 2 is compensated and simultaneous activation of all feed weirs at the start of filter actuation is ensured. [15] Channel according to claim 1, characterized by , that the stainless steel channel elements with a bent (21) connecting plate Fig. 7 are connected via the holes (17) and (20) in a force-fit manner. The connecting element is made from a stainless steel sheet (19). [16] Channel according to claim 1, characterized by that the modular channel system (after the filter body has been installed) is completely walkable. [17] Channel according to claim 1, characterized by , that a wall bracket is made from a stainless steel sheet (25) with cuts (26) and stiffening and shaping edges (27) ( Fig.11) is manufactured to be dimensionally stable. The wall bracket is connected to the reinforced concrete wall of the inlet and distribution structure via pre-drilled holes (28). [18] Channel according to claim 1, characterized by that the last element of the modular stainless steel gutter system has a Fig. 6 matching stainless steel end plates ( Fig. 13) is mounted, which is made from a stainless steel sheet (29) and welded on at the factory. [19] Channel according to claim 1, characterized by , that the last element of the modular stainless steel gutter system offers an alternative to Fig. 13 one to Fig. 6 matching stainless steel end plates ( Fig. 12) is mounted, onto which a stainless steel connection fitting is factory welded (30). The end plate (29) is factory welded as Fig. 13 welded on.

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