DE10136161A1 - Drain unit, for a sewage/rainwater drainage system, has openings in the base shrouded by raised projections, to allow the flow to pass over carrying particles while cleaner part-flows escape through the openings into a lower conduit - Google Patents

Abstract

The drain channel unit (1), for sewage and rainwater, has a base (3) with an inflow side (3a) and an outflow side (3b) in the flow direction (A). The base has openings (6) which are not visible from the inflow side, but can be seen from the outflow side as raised projections (4) over the entry into each opening. The water/sewage flows over the raised projections, and part of the flow escapes through the passage openings into a lower conduit (5) leaving the major part-flow carrying particles to drain away.

Description

The present invention relates to a Water pipe element and a water drainage system for raw or Rainwater, especially an infiltration system for Rain drains upstream.

Infiltration systems are known, usually have the following structure. A large diameter pipe or a The shaft is arranged vertically in a cavity in the ground. In order, for example, above average in heavy rainfall Being able to absorb water amounts is usually one Intermediate storage required so that the water gradually can seep away. A temporary storage facility will for example above or below the infiltration system maintained or by appropriate dimensioning of the Infiltration shaft or through underground pipe trench arrangements realized.

However, all infiltration systems have the following disadvantage. With the rainwater foreign substances like sand and others inorganic substances as well as leaves and other organic matter Substances entered in the infiltration system. So it comes in the systems or underground to colmation. Especially in the The initial phase of the runoff is more and more washed-off substances contain, which accelerate the colmation.

It is therefore an object of the present invention improved water pipe element or a water drainage system or To create an infiltration system for raw or rainwater eliminates the disadvantages mentioned above, i. that is, the entry of foreign substances considerably reduced.

This task is accomplished with a water pipe element according to a of claims 1 or 26 solved. Furthermore, the task is accomplished by means of a retrofit system according to claim 30 and one Multiple protection system according to claim 31 solved.

Further advantageous features of the invention are the subject of Dependent claims.

Through the bottom of the water pipe element according to the invention coarse particles will not run through the openings, but they are due to their moment of inertia over the Openings transported away, while only water and at best finer particles escape through the openings. The coarse particles can be in one after the Water pipe element arranged sediment trap or a collecting basket then collected or in a waste water collection system be transferred. The collecting basket can vary depending on the amount of dirt emptied or exchanged for a new collecting basket become. This prevents coarse particles from entering the Infiltration system can be initiated. Another advantage is that by holding back the coarse particles downstream fine screen or a filter a better efficiency can achieve, since this is not burdened by the coarse particles are strongly delayed and clogging of this fine screen can be. Another advantage of the present invention is it that this system is ideal without being too big constructive effort as a retrofit system in any existing Infiltration system can be installed. This allows renovation or modernization costs of an infiltration system significantly to reduce.

The present invention is intended to be based on several Embodiments with reference to the accompanying Drawings are explained in more detail.

Fig. 1 is a perspective view of a first embodiment of the present invention.

Fig. 2 is a perspective view of a water pipe element according to the invention with a downstream collecting basket.

Figure 3 is a side cross-sectional view of a portion of a water pipe member and a spring overflow.

Fig. 4 is a perspective view of a development of the first embodiment.

FIG. 5 is a sectional plan view of a second exemplary embodiment according to the invention along the line VI-VI from FIG. 6.

FIG. 6 is a side view of the second exemplary embodiment according to FIG. 5.

Fig. 7 is a side cross-sectional view of the second embodiment shown in Fig. 6.

Fig. 8 is a partially sectioned side view of a third embodiment of the present invention.

Fig. 9 shows an alternative embodiment of the second embodiment.

FIG. 10 shows a schematic lateral cross-sectional view of the modified embodiment according to FIG. 9.

It is noted that the figures are not to scale. Rather, they are basic sketches. In particular, the elevations and openings designated by reference numerals 4 and 6 are shown enlarged for easier understanding.

First embodiment

1 with a water pipe element is referred to, which consists of a groove 2 with a bottom 3 , which has an input side 3 a and an output side 3 b. A drain 5 is arranged below the channel 2 . The bottom 3 of the channel 2 has several elevations 4 and openings 6 . The arrow A denotes the direction of flow of the water from the inlet side 3 a to the outlet side 3 b. Arrows H and C denote the directions of flow of the water after the water has flowed through the openings 6 in the base 3 from the channel 2 into the outlet 5 .

As shown in Fig. 2, there are coarse particles 7 in the water to be drained (in addition to a fine entry, not shown). These particles are entrained by the water in the direction of flow A. The elevations 4 rise from the level of the bottom 3 in the flow direction A upwards. Each elevation 4 ends at an end 4 a, which delimits the opening 6 . Then the floor 3 continues in its plane. The opening 6 is located between the higher end 4 a of the elevation 4 and the subsequent lower floor 3 . The elevations 4 are aligned so that the water flows over the elevations 4 in their increasing direction.

The profile of the elevations 4 could also be described with the geometric structure of an ordinary kitchen grater or a kitchen slicer. In this case, openings are provided on a rubbing surface, which consist of slots running transversely to the rubbing direction, of which in each case one side adjacent to the slot is expanded or bulged in a direction perpendicular to the surface, whereby the opening is created. However, the principle of the kitchen grater is not used in the present invention, in which small pieces are scraped from the material to be rubbed by rubbing in the direction of the openings, ie against the elevation. Rather, the reverse principle is used in the invention, ie the openings are flowed over from behind.

The bottom 3 can be made from a metal, for example from galvanized steel sheet. The elevations 4 can be produced in that slots 3 , for example by punching, are provided on the bottom 3 transversely to the direction of flow. Subsequently, one side of each slot is widened or squeezed in a direction perpendicular to the bottom to form the elevation 4 which borders on the opening 6 . The bottom 3 could alternatively be made from a plastic by injection molding.

As shown in FIG. 2, a collecting basket 8 can be arranged after the water pipe element 1 . The collecting basket 8 advantageously has a coarse sieve 9 in order to prevent clogging with foreign substances that are too large. Furthermore, the collecting basket 8 has a geotextile or fleece sack 10 or alternatively a fine sieve, which not only retains the coarse particles, but also acts as a fine sieve. This not only filters out the coarse particles, but also the fine entry while the water can run off. The collecting basket 8 is designed to be removable and can be emptied or replaced if necessary.

It is advantageous if, in a water drainage system of the type shown in FIG. 1, a plurality of water line elements, each with a downstream collecting basket, are arranged at regular or irregular intervals, depending on the slope and foreign matter input of the water drainage system and the amount of water to be drained off. The water pipe element can also be formed in one piece with the channel 2 . Furthermore, it is conceivable that the channel 2 is constructed as a pure cover for the drain 5 . The shape is therefore not limited to a gutter. Rather, it is possible to choose any surface design. For example, the surface of the water pipe element could be provided as a surface covering for draining large amounts of rainwater from larger roofs. However, it is important to know the direction of flow of the water and to take the orientation of the openings into account accordingly.

Instead of the collecting basket, a spring overflow 11 , as shown in FIG. 3, can also be used. The jumping overflow 11 consists of an upwardly inclined wall element, which opens an opening 12 into which the water can flow. The bottom of the jumping overflow is designed as a fine sieve, similar to the collecting basket 8 from FIG. 2. The fine sieve can also consist of a geotextile or fleece. Likewise, the spring overflow or the fine screen 13 can be designed to be removable so that it can be emptied or replaced if necessary.

In addition, as shown in FIG. 4, a fine screen 15 can be arranged below the surface. The fine screen 15 can also be made of a geotextile or fleece and is clamped or suspended between the side walls of the outlet 5 . As a result, the water running through the openings 6 can be cleaned of fine particles before it is introduced into the outlet 5 .

The mode of operation of the first exemplary embodiment is explained below. The water flows in the flow direction according to arrow A in FIG. 1 in the channel 2 . When the water has flowed over a rising elevation 4 , part of the water escapes downward through the opening 6 into the outlet 5 due to gravity. As shown in FIG. 2, particles 7 are transported in the flow direction by the water on the floor. The water can easily escape down through the openings 6 , while the particles 7 are still transported by the water in the direction of arrow A and do not get down through the openings 6 into the outlet 5 . Rather, the particles 7 are transported on the water pipe element 1 until they are collected in a collecting basket 8 . The particles 7 are collected in the collecting basket 8 and this can be emptied or exchanged if necessary. Since the collecting basket 8 consists of a geotextile or fleece sack 10 , the water which has transported the particles 7 into the collecting basket can escape downwards through the fleece and can also be introduced into the outlet 5 . It is thus prevented in a simple manner that the particles 7 get into the outlet 5 and the water can now be introduced into the usual infiltration system, both coarse particles and the fine entry being screened out.

Alternatively, it is also possible to arrange the bottom of the water supply element upside down, as if Fig. 1 or 3 would be turned upside down. It would also be possible for some of the water to flow out through the opening 6 , while the coarse particles would be transported over the opening and the downward bulge due to their moments of inertia. It is important, however, that the flow volume and speed of the water is sufficiently high.

Second embodiment

The second exemplary embodiment according to FIGS. 5 to 7 consists of an inlet pipe 20 and a water pipe element 21 designed as a cylindrical ring wall. The water pipe element 21 is basically constructed similarly to the water pipe element 1 . However, it is bent into a cylinder, so that the input side 3 a and the output side 3 b are connected to one another. However, it would also be conceivable that the input side is not connected to the output side, but that a gap is formed between them or that the output side is offset to the outside with respect to the input side. The inner wall of the cylinder corresponds to the bottom 3 of the first embodiment and should therefore continue to be referred to as the bottom 23 . The water line element 21 is located in a drainage channel 25 . In its operating position, the discharge channel 25 is installed vertically in an infiltration pit. The inlet pipe 20 is arranged substantially horizontally so that it opens tangentially on the inner surface of the bottom 23 . As a result, the water flows tangentially onto the inner wall of the base 23 . The inlet pipe 20 must be dimensioned such that the water flows in from a certain amount of water at a corresponding speed so that the water runs along the inner wall of the bottom 23 in the tangential direction. In the present exemplary embodiment, the water should first flow in horizontally and then run downward in a spiral. As shown in FIGS. 5 and 7, the bottom 23 also has elevations 24 and openings 26 which are constructed according to the same principle as in the first exemplary embodiment and function equally. Accordingly, reference is made to these statements. However, the water is not forced through the openings due to the gravity of the water, but rather due to the centrifugal force that prevails due to the tangential inflow of the water. Accordingly, a plurality of elevations 24 are provided on the bottom 23 in the direction of flow of the water, which are arranged in a horizontal arrangement line by line from top to bottom. However, it is also conceivable that the elevations 24 run downward in a spiral, corresponding to the direction of flow of the water. Here too, the openings 26 are arranged such that the inflowing water flows over the elevations 24 from behind. As shown in FIG. 7, the water that has not been discharged through the openings 26 will flow along the bottom 23 and finally drain down into the drain 5 through a collecting basket 28 which contains a sieve 30 . The collecting basket 28 has an annular side wall 28 a and a bottom which is designed as a fine sieve 30 . According to FIG. 7, the water line element 21 has a smaller diameter than the discharge channel 25 . The collecting basket 28 can be designed to be removable. However, it is also possible to make the entire water line element 21 removable so that it can be emptied or replaced if necessary. Furthermore, the fine screen 30 can also be made of a geotextile or nonwoven.

The mode of operation of the second exemplary embodiment is explained below. When the water reaches the water pipe element 21 via the inlet pipe 20 at a corresponding speed, it will flow in tangentially along the ring wall and initially flow horizontally and later spirally downwards. Due to the centrifugal force, the water will in part pass through the openings 26 into the intermediate space 19 , from where it runs down into the outlet 5 . The particles 27 that are introduced by the water either fall directly onto the fine sieve 30 due to their own weight or are transported along by the water along the bottom 23 in a spiral downward. With the help of the geometry of the elevations 24 , however, only the water is drained through the openings 26 by the pressure which prevails due to the centrifugal force of the water flowing on the inner wall, while the particles 27 are transported further by the water until they finally reach the fine screen 30 land. In addition to the coarse particles, the fine sieve 30 also retains the fine entry, so that purified water can flow down into the outlet 5 .

Optionally, a further fine screen 29 can also be provided in the annular space 19 between the water line element 21 and the drainage channel 25 , which screens the fine entry out of the water flowing out through the openings 26 . The fine sieve 29 can also be designed to be removable. For example, it can be attached to the water pipe element 21 and removed with it.

modification

An alternative embodiment of the second exemplary embodiment is shown in FIGS. 9 and 10. Fig. 10 shows the structure only schematically. The water is not discharged from the inside to the outside, ie through the water pipe element to the outside, but from the outside to the inside, ie through the water pipe element 21 'to the inside. The water pipe element 21 'is also bent into a cylinder, the outer wall of the cylinder now, in contrast to the above embodiment, corresponding to the base 3 of the first exemplary embodiment. The water line element 21 'is also located in a drainage channel 25 '. In its operating position, the discharge duct 25 'is installed vertically in an infiltration pit. In contrast to the previous embodiment, the inlet pipe 20 'is arranged such that it opens tangentially to the inner surface of the discharge channel. As a result, the water flows tangentially onto the inner wall of the discharge channel. A fine screen 29 'or filter is arranged between the discharge channel and the water line element. The fine screen or the filter is preferably arranged sloping towards the water pipe element 21 ', so that the water flows towards the water pipe element, whereby cleaned water can drain downwards. The gap between the discharge channel and the water line element is preferably dimensioned such that the water flows through the openings into the interior of the water line element when the inlet is increased. With smaller amounts of water, the water runs down the inner wall of the discharge channel and flows through the fine sieve. An advantage of this system is that a large part of the coarse particles fall down due to gravity before they reach the water supply element. Coarse particles only reach the water pipe element when there is a large amount of water. Preferably, an outlet is provided at the lower end of the fine screen or filter adjacent to the water line element, which leads into a dirty water channel 5 '. As a result, coarse particles are continuously discharged into the sewage channel and the system works largely maintenance-free, ie the fine screen or the filter does not have to be cleaned or replaced.

Third embodiment

Finally, a third exemplary embodiment will be explained with reference to FIG. 8. Fig. 8 shows a side view of a water pipe element 31, wherein only the discharge passage 35 is shown in section. The water pipe element 31 consists of ring fins 32 arranged one above the other. The ring fins 32 can be connected to one another, for example, by means of webs (not shown), so that their positions, orientations and distances from one another are fixed. The lamellae are arranged at an incline such that they are oriented from the bottom inwards upwards outwards, as shown in FIG. 8. This creates a kind of funnel into which water is introduced from above from direction E. The bottom of the water supply element 31 is designed as a collecting basket 36 . The collecting basket also has a fine sieve (not shown), which can also be made of geotextile material or fleece. The collecting basket 36 can be made individually removable. However, it can also be designed to be removable from the discharge channel 35 together with the water line element 31 . The water pipe element 31 is suspended in the drainage channel 35 or fastened thereon. The water pipe element 31 has a diameter that is smaller than the diameter of the drainage channel 35 . This creates an intermediate space 39 through which water, which flows outwards due to the centrifugal force between the ring fins 32 , can be drained downward. The intermediate space 39 is covered at the top, so that no water can get directly into the intermediate space 39 from above, but rather the water has to flow through the annular fins 32 .

The mode of operation of this exemplary embodiment is explained below. The water is introduced vertically in the direction of arrow E in Fig. 8. It initially fills the collecting basket 36 , whereby coarse particles already remain in the collecting basket. If there are smaller amounts of water, the water runs into the collecting basket 36 and flows there through the fine sieve into the outlet 5 . If the amount of water increases due to heavy rainfall, the water will not drain through the collecting basket as quickly. As a result, the water level in the collecting basket rises above the edge and the water flows out through the slots between the individual ring fins 32 into the intermediate space 39 . Coarse particles are further retained in the water pipe element 31 . Thus, only water without coarse particles gets into the intermediate space 39 .

Optionally, a further fine screen 40 can be arranged in the intermediate space 39 between the water line element 31 and the drainage channel 35 in order to also clean this water from the fine entry. In this way, only purified water gets into the outlet of the drainage channel 35 .

The systems according to the second and third exemplary embodiments are eminently suitable as a retrofit system for conventional infiltration systems, since the water pipe element 21 ; 31 only has to be adapted in its diameter to the existing infiltration system by selecting the diameter of the water pipe element 21 , 31 to be smaller than that of the drainage channel 25 , 35 in order to form an intermediate space 19 , 39 through which the flowing through the openings 6 or slots , cleaned of coarse particles, water can drain off. Furthermore, it must be ensured in the second exemplary embodiment that the inlet pipe 20 opens tangentially into the water pipe element 21 , so that the water can flow along the inner wall of the ring wall 22 , so that a centrifugal force arises which presses the water outward against the inner wall of the water pipe element 21 and let it spiral down.

It should be emphasized that the present invention is not based on the three illustrated embodiments is limited. In addition, each of the three exemplary embodiments in FIG any desired dimension, depending on Application.

Incidentally, it should be noted that the invention Water drainage system, though not so, in particular can only be used for infiltration systems. The Water pipe elements can, for example, in general Water purification or filtering can be used.

Claims (31)

1. Water pipe element ( 1 ; 21 ) for a water drainage system for raw or rainwater, the water pipe element ( 1 ; 21 ) having a bottom ( 3 ; 23 ) with an input side ( 3 a; 23 a) and an output side ( 3 b; 23 b) in order to be overflowed with water in a flow direction (A) from the inlet side to the outlet side, the bottom ( 3 ; 23 ) having a plurality of openings ( 6 ; 26 ), the cross sections of which are designed such that the openings (a 3) as seen from the input side are not visible and seen from the output side (3 b) of visible. 2. Water pipe element ( 1 ; 21 ; 31 ) according to claim 1, characterized in that the openings ( 6 ; 26 ) each by an in the flow direction (A) from the plane of the bottom ( 3 ; 23 ) increasing and ending at the opening Survey ( 4 ; 24 ) are limited. 3. Water pipe element ( 1 ; 21 ; 31 ) according to claim 1 or 2, characterized in that the opening cross sections of the openings ( 6 ; 26 ) extend perpendicular to the floor ( 3 ; 23 ). 4, water drainage system with a water pipe element ( 1 ; 21 ) according to one of the preceding claims 1 to 3, characterized in that an outlet ( 5 ) is provided on an underside of the bottom ( 3 ; 23 ). 5. Water drainage system with a water pipe element ( 1 ; 21 ) according to one of the preceding claims 1 to 3, characterized in that a sediment trap is provided behind the water pipe element ( 1 ). 6. Water drainage system according to the preceding claim, characterized in that the sediment trap is designed as a collecting basket ( 8 ). 7. Water drainage system according to claim 5, characterized in that the sediment trap is designed as a spring overflow ( 12 ). 8. Water drainage system according to one of the preceding claims 5 to 7, characterized in that the sediment trap is removable. 9. Water drainage system according to one of the preceding claims 5 to 8, characterized in that the sediment trap is provided with a fine sieve ( 10 ; 13 ) through which the remaining part of the water is guided into the outlet ( 5 ). 10. Water drainage system according to the preceding claim, characterized in that the fine screen ( 10 ; 13 ) consists of a geotextile. 11. Water drainage system according to one of the preceding claims 5 to 10, characterized in that the sediment trap is covered with a coarse sieve ( 9 ). 12. Water drainage system with a water pipe element ( 1 ; 21 ) according to one of the preceding claims 1 to 3, characterized in that a fine sieve ( 15 ) is arranged below the water pipe element ( 1 ). 13. Water drainage system with a water pipe element ( 1 ; 21 ) according to one of the preceding claims 1 to 3, characterized in that the water pipe element ( 1 ) is designed as a first channel ( 2 ), and that the drain ( 5 ) is designed as a second channel which is located below the first channel ( 2 ). 14. Water drainage system with a water pipe element ( 1 ; 21 ) according to one of the preceding claims 1 to 3, characterized in that several water pipe elements ( 1 ) are arranged at regular or irregular intervals in the water drainage system. 15. Water pipe element ( 21 ) according to one of claims 1 to 3, characterized in that the water pipe element ( 21 ) is bent cylindrically, so that the output side ( 23 b) points to the input side ( 23 a), the bottom ( 23 ) forms the inner wall of the cylinder. 16. Water pipe element ( 21 ) according to the preceding claim, characterized in that a water inlet ( 20 ) is provided so that it opens tangentially to the cylinder inner wall. 17. Water pipe element ( 21 ) according to one of the two preceding claims, characterized in that the lower end cross-sectional area of the cylindrically curved water pipe element ( 23 ) is provided with a fine sieve ( 30 ). 18. Water pipe element ( 21 ) according to the preceding claim, characterized in that the fine screen ( 30 ) consists of a geotextile or fleece. 19. Water pipe element according to one of claims 1 to 3, characterized in that the water pipe element ( 21 ') is bent cylindrically, so that the output side points to the input side, the bottom ( 23 ') forming the cylinder outer wall. 20. Water drainage system with a water pipe element ( 21 ') according to the preceding claim, characterized in that the water pipe element ( 21 ') is provided in a discharge channel ( 25 ') in which a water inlet ( 20 ') is provided which is tangential to the Inner wall of the discharge channel ( 25 ') opens. 21. Water drainage system according to the preceding claim, characterized in that the lower end cross-sectional area of the cylindrically curved water pipe element ( 21 ') is provided with a fine sieve ( 30 '). 22. Water drainage system according to one of the two preceding claims, characterized in that a fine screen or geotextile or a fleece ( 29 ') is provided between the inner wall of the drainage channel ( 25 ') and the water pipe element ( 21 '). 23. Water drainage system according to the preceding claim, characterized in that the fine screen, the geotextile or the fleece ( 29 ') from the inner wall of the drainage channel ( 25 ') to the water pipe element ( 21 ') is arranged sloping downward, one at the lowest point Discharge into a dirty water channel ( 5 ') is provided. 24. Water pipe element ( 1 ; 21 ; 21 ') according to one of the preceding claims 1 to 3 or 15 to 19, characterized in that the water pipe element ( 1 ; 21 ; 21 ') consists of plastic. 25. Water pipe element ( 1 ; 21 ; 21 ') according to any one of the preceding claims 1 to 3 or 15 to 19, characterized in that the water pipe element ( 1 ; 21 ) is made of a sheet metal, into which slots are punched, the on the slits adjacent material is expanded on one side to form the opening ( 6 ; 26 ). 26. Water pipe element ( 31 ) with an inlet side ( 31 a) forming an opening, an outlet side ( 31 b) forming the bottom and with side walls, the side walls having a plurality of slanted slats ( 32 ) pointing from the inside to the outside from the bottom, so that slot-like openings ( 36 ) are formed between the lamellae. 27. Water pipe element according to the preceding claim, characterized in that the bottom has a fine sieve ( 36 ). 28. Water drainage system with a water pipe element ( 21 ; 21 '; 31 ) according to one of the preceding claims 15 to 18 or 24 to 27, characterized in that the water pipe element ( 21 ; 31 ) is arranged within a drainage channel ( 25 ; 35 ). 29. Water drainage system according to the preceding claim, characterized in that between the water pipe element ( 21 ; 31 ) and the discharge channel ( 25 ; 35 ) a further fine sieve ( 29 ; 40 ) is arranged parallel to the fine sieve ( 30 ; 36 ). 30. retrofit system for filtering raw or rainwater, which has an infiltration pipe into which a Water pipe element according to one of claims 15 to 19 or 24 to 27 or a water drainage system according to one of claims 20 up to 23 or 28 to 29 can be used later. 31. Multiple protection system for the protection of infiltration systems consisting of an infiltration pipe or flume that a Water pipe element according to one of the preceding Claims 1 to 3 or 15 to 19 or 24 to 27 or one Water drainage system according to one of claims 4 to 14, or 20 to 23 or 28 to 29.