DE19701522C1 - Water drainage system with filters which discharges to soil soak-away or cistern - Google Patents

Abstract

The system has a sub-surface soakaway system or is incorporated within a sub-surface water cistern holding water for subsequent use. It incorporates filters (1-15, 13) surrendering water to the soakaway or cistern which remove substances which would block the soakaway or cistern. The filters incorporate fine filters (1-4), distributor and collector units (15) delivering water to or drawing water from coarse (5) and/or fine filters (1-4).

Description

The invention relates to a drainage system according to the Pa Claim 1.

This is about removing surface water, especially from rainwater, and not into waste water channel system from which there are disposal facilities, ins special sewage treatment plants or the like is supplied, son in such institutions from which it is directly to the Groundwater is supplied (i.e. in seepage facilities) or in such facilities (e.g. cisterns), where it is considered Process water available for certain areas of application stands.

More than 11% of the area of Germany is currently through Be construction, i.e. sealed by buildings, streets and squares, see above that natural rainfall no longer ver on site in the soil  can seep. This leads to adverse effects the environment and the economy of sewer systems. Dar furthermore there is a drastic lowering of the groundwater level and an increase in floods. By the rapid drainage of rainwater on sealed surfaces the duct systems must also be excessively large become and must be the home owner or entrepreneur high channel pay connection fees. In addition, in many cases len elaborately prepared, expensive fresh water for purposes used in which only simply purified (rain) water would be quite usable. To deal with this problem, are already z. B. in road construction systems with pipelines used by a Water or drainage from a street or a house roof is supplied and which have walls perforated throughout such that the water supplied from the piping into one of them sand bed and can seep away. Farther Cisterns have been known (since ancient times) in which Re backwater can be collected, which then as service water is available for washing purposes or the like. In at A problem in the cases is that it is the seepage direction or the water supplied to the cistern at least as far must be free of dirt particles washed away that the Do not clog seepage facilities (permanently) or the room stars muddy.

From DE 295 02 895 U1 is a drainage system with Cistern facilities for storing rainwater for the later use known. The system has filter devices on, which are upstream of the cistern and namely in such a way that contaminated solids are filtered out of the water are cash. However, the known system is only very special in certain cases.

The invention has for its object a longer Drainage system with a large variety that can be used over time to create balance. This task is accomplished by an Ent irrigation system according to claim 1 solved.  

An essential aspect of the invention is that with the drainage system shown here conditions are provided, which collect entrained solids gen. This makes it possible to the seepage devices or Keep the cistern in operation for a long time without that the seepage speed or the amount of storage we change significantly. Preferably, the filter includes directions of coarse filters and fine filters separated from each other, what the functionality of the filter arrangement over a ensures an extended period.

The drainage system preferably has distribution and / or collection units via which several filters are directions, in particular coarse filters or fine filters can be connected in parallel on the output side. That way it is possible the drainage facilities to the circumstances adapt and in particular to adjust the capacity len that the maxi times accumulating water can be managed. This can the fact that for example, Water drained from the roof area (except in autumn) is less polluted than water accumulating in the yard area, so that these different waters over different ver divider and / or collection units the seepage facilities (or the cistern) can be supplied.

The filter devices and / or distributor are preferred Learning units and / or collecting units in essentially identical housing units arranged. This means that the drainage system is built according to the "modular principle" can be, whereby on the one hand the production costs and the Reduced inventory costs during production or storage that can, but on the other hand already installed system conditions can also be easily converted if the Ver change circumstances.  

The housing units preferably consist of mutually attachable details with connection devices for connecting pipes, so that the individual Ge can be connected to each other.

Overflow devices are preferably parallel to this the filter devices arranged that at an oversize Water inflow those amounts of water to the filter device are carried away by, which a maximum Fil exceed the throughput of the filter devices. Thereby it is possible to use the filter devices for a normal Optimally design water flow while in unusual Situations, such as a cloudburst, oversized what quantities of water are fed directly into the drainage systems. This is also easily possible because in such Situations, the abundant flowing water initially yes is still caught in the filter devices and with solids entrained in the water are collected. After but then free the drained roof and floor areas of such carried dirt parts can follow an excess of water (with essentially harmless degree of contamination) on the filter devices to be led past.

The overflow devices are preferably on the filters facilities or the possibly provided distribution and / or collection units can be placed essentially tight, so that they also each form part of the "modular system" form.

The filter devices preferably have for removal filtered solids and / or individually for exchange available filter inserts. These can become known to him ter manner.

In a particularly preferred embodiment of the invention the filter devices include fine filters made from water permeable polymer concrete are made. This material  is on the one hand very resistant (also against aggressive Chemicals), on the other hand relatively inexpensive.

The polymer concrete comprises quartz gravel and / or quartz sand as Fillers using binders, especially polymers resin, vinyl ester resin, epoxy resin, polyurethane resin or Polymethyl methacrylate resin or mixtures thereof are bound to each other that an open and binder-free Pore space remains between the filler particles. This is in particular relatively easy to accomplish that the quartz gravel and / or quartz sand according to a sieving line of the Art combined that certain grain diameter to produce towards a defined open pore space with significantly reduced reduced or missing portion are provided.

A particularly compact and easy-to-use version tion form of the invention is characterized in that the Coarse filters are detachably connected to the fine filters, whereby the coarse filters preferably together with the fine filters removed from the drainage system in a single operation men can be. For cleaning purposes, the fine filter from Coarse filter separated and with it again before use get connected.

The fine filters advantageously essentially envelop the coarse filters and are therefore almost together with them one and the same housing unit arranged. Hence can the housing units in this embodiment in their Ab measurements are reduced, resulting in space-saving drainage is provided. Furthermore, the fine filters made of water-permeable flexible, especially fleece-like Material made so that especially fine deposits are good can be filtered in it. The fleece-like material leaves also easy to clean and can therefore often again be used.

Preferred embodiments of the invention are explained in more detail below with reference to FIG . Show here

Fig. 1 shows a longitudinal section through a first exporting approximately of the invention,

Fig. 2 shows a cross section through the arrangement according to FIG. 1,

Fig. 3 is a plan view taken along the line III-III of Fig. 2,

Fig. 4 shows a longitudinal section through a second exporting approximately of the invention,

Fig. 5 is a cross-section through a unit of the embodiment according to Fig. 4,

Fig. 6 is a plan view taken along the line VI-VI of Fig. 5,

Fig. 7 is a longitudinal section through a further embodiment of the invention,

Fig. 8 is a cross-section through a unit of the embodiment according to Fig. 7,

Fig. 9 is a plan view of the assembly taken along line IX-IX of Fig. 8,

Fig. 10 is a longitudinal section through a further embodiment of the invention, and

Fig. 11 is a front view of a unit of the embodiment according to Fig. 10.

In the following description, the same or equivalent parts used the same reference numerals. This is particularly significant in so far as it is with the Erfin is a "modular system" in which the one  individual parts combined differently differently units or units to be used.

A first embodiment is explained below with reference to FIGS. 1-3, wherein it should be mentioned that the essential element parts are already provided in this particularly compact embodiment of the invention consisting of a single unit.

As can be seen from FIGS. 1-3, an upper Aufsetzka are sten 10, a central box 20 and a lower part 30 is provided. While the top box 10 and the center box 20 are each frame-shaped, the lower part 30 is provided with a bottom 34 .

The (upper) top box 10 has a frame 17 on its upper edge, which is shown in FIG. 2. A cover 9 is placed on or in the frame 17 , which can also be designed in a lattice shape corresponding to a yard run-in.

The attachment box 10 has on its 4 walls break-out parts 11 , 11 ', 11 ''and 11 ''', which are designed so that the respective walls or essential sections thereof are easily removable, with frame sections then remaining. Inlet parts 8 , 8 'can then be attached to the remaining parts, which are intended to adapt the attachment box to a drainage device to be connected to it (e.g. a drainage channel or a pipeline). The connection between the inlet neck 8 , 8 'and the attachment box 10 is preferably made by gluing.

The center box 20 , on which the attachment box 17 is placed, has at its upper edge a paragraph in which an adapter plate 14 is arranged. The adapter plate 14 in turn has an inner opening with a umlau fenden receptacle 21 , in which the coarse filter insert 5 is suspended. This is designed as a removable sieve box and is preferably made of metal.

The center box 20 has on its peripheral walls Rohran connections 22 , which are (without exception, in the embodiment shown in FIGS . 1-3) closed by plugs 16 .

The center box 20 sits in a corresponding circumferential recess on the upper edge of the lower part 30 . The lower part 30 has at least one pipe connection 32 which is arranged in the region of the upper edge of the lower part 30 in such a way that a settling space 31 is formed below the level of the pipe connection 32 .

At its upper edge, the lower part 30 also has a cross member 33 , which is used for supporting a filter layer 35 in the center, which is inserted into the upper part of the lower part 30 in this.

In the filter pad 35 fine filter inserts 1-4 can be used, which are preferably made of polymer concrete. The structure of the fine filter inserts was described in more detail at the beginning.

At the unit thus formed, a T-piece 24 of a Rohrlei device can be used, the lower branch as a drain pipe 26 in the pipe connection 32 of the lower part 30 and the upper branch as an overflow pipe 25 in the opening of the inlet approach 8 'can be used tightly. The T-piece 24 ends in a seepage device (not shown here) (in particular in a seepage line) or in a cistern.

The from a (not shown) drainage channel on the left in Fig. 1 approach 8 in the attachment box 10 flowing water first comes into the tightly fitting in the adapter plate 14 coarse filter insert 5 and is there from coarse particles (leaves, cigarette butts and the like) be freed . From the coarse filter insert 5 the water runs down into the four fine filters 1-4 and passes through the pore spaces of the fine filter inserts made of polymer concrete into the settling space 31 in the lower part 30 . The finer dirt particles remain in the fine filters 1-4 . With a low water inflow flow, solids sink downward in the settling space 31 and are deposited there as sludge on the floor.

The water cleaned in this way flows through the pipe connection 32 into the drain pipe 26 of the T-piece 24 and from there into the seepage device (not shown) or the cistern.

Then, if a sudden high water attack (eg. As in egg nem downpour) occurs, the wider the transmittance insbeson the fine filter inserts exceeds 1-4, the central box 20 and the lower part of the Aufsetzkastens 10 fill until the water level of the Overflow pipe 25 reached wel ches over the (in Fig. 1 right) inlet approach 8 'in the top box 10 opens. Thus, the water can flow into the seepage (not shown) or the cistern without further filtering.

The second embodiment of the invention shown in FIGS . 4-6 differs from that according to FIG. 1 in that the coarse filter and the fine filter sit in two separate units. The arrangement of the (shown in Fig. 4) Grobfil age 5 in the adapter plate 14 in the middle box 20 corresponds to that of FIG. 1. However, there are no fine filter inserts 1-4 in the lower part 30 in this embodiment hen. The cutouts in the lower part 30 for inserting the previously described traverse 33 and filter support 35 are clearly visible on the left in FIG. 4.

The "coarse filter unit" shown on the left in FIG. 4 is connected via a pipe 23 to a subsequent "fine filter unit". The coarse filter 5 is missing in this unit. In the top box 10 , a bottom plate 18 is used in wesentli Chen tight.

In the lower part 30 (as in the embodiment according to FIG. 1) the filter support 35 and the cross member 33 are provided and the filter inserts 1-4 are used. On the output side, as in the embodiment according to FIG. 1, the T-piece 24 is closed.

Finally, in the embodiment according to FIGS. 4-6, the two mounting boxes 10 are still connected to one another via a connecting pipe 7 , with - functionally - the inner space sealed by the base plate 18 of the right mounting box 10 in FIG. 4 merely as a line piece serves to forward "overflow water".

An essential difference between the embodiment of FIG. 4 and that of FIG. 1 - as can be seen from the preceding description - is that the coarse filtering and the fine filtering are separated from each other. In addition, the settling space 31 in the embodiment of the invention shown in FIG. 4 is considerably larger and is very easily accessible from above for cleaning purposes after the coarse filter 5 has been removed. The mode of operation corresponds to that of the arrangement according to FIGS. 1-3.

The further embodiment of the invention shown in FIGS . 7-9 differs from that according to FIG. 4 in that a distribution unit 15 between the coarse filter unit (shown on the left in FIG. 4) and the fine filter unit (shown on the right in FIG. 4) is provided. At this distributor unit 15 further coarse filter units on the input side and further fine filter units on the output side can be connected. Furthermore, in the distributor unit 15 shown in FIG. 7, the base plate 18 is provided with a baffle 13 , which serves to deflect and calm the water flowing out of the coarse filter via the line 23 so that it settles in the settling space 31 of the distributor unit 15 Can increasingly settle suspended matter.

From the above it can be seen that the presented here "modular system" can be assembled in many ways from Grundele elements, which in particular include a top box 10 , a center box 20 and a lower part 30 . These parts are interconnectable with tubular elements and can be equipped with different types of elements, the ge in Fig. 7 (in the middle) showed settling box 31 with the baffle 13 represents a "filter element".

A third embodiment of the drainage system is explained below with reference to FIGS. 10 and 11.

In this embodiment, the coarse filter 5 'and the fine filter 1 ' are releasably connected to one another, the fine filter ter 1 'being specifically designed as a fleece-like filter bag which completely envelops the coarse filter 5 '. The filter bag is placed with its upper edge around the upper peripheral edge of the coarse filter 5 'and is attached to it, for example by Festzur ren. The filter bag can also be attached below half of the upper peripheral edge of the coarse filter 5 ', for example on a peripheral groove (not shown). In this embodiment, the coarse filter is designed as a sieve bucket, however, a sieve box according to the preceding embodiments can be used as well. It is essential that the filter bag surrounds the sieve openings 6 arranged on the peripheral wall of the coarse filter 5 '.

The screen openings 6 are arranged in two rows at a distance from one another around the peripheral wall of the coarse filter 5 '. The sieve openings 6 adjacent to the bottom of the coarse filter 5 'are slit-like and the sieve openings 6 in the row above are circular, so that the drainage water can flow out through the larger circular sieve openings 6 into the filter bag with increased water supply, thereby permitting the Coarse filter 5 'is increased.

The filter bag can have an arbitrarily large filter volume, so that the filter device can be individually matched to the respective degree of contamination of the water to be discharged or to the amount of water that occurs in each case. Since fine deposits are filtered to a high degree by the fleece-like material, a settling space 31 is no longer required. Therefore, for example, the lower part 30 can be shortened to provide a drainage system with a small footprint.

The filter bag is preferably taken together with the Grobfil ter 51 from or together with the attachment box 10 , released from the coarse filter 5 ', and is then reusable from the settled solids reusable. The bottom plate 18 of the top box 10 has a central opening, so that the coarse filter 5 'with its upper peripheral edge is attached to the circumferential bottom edge 12 of the top box 10 . The coarse filter 5 'can also be hung, as in the previously described embodiments, on the adapter plate 14 , which is arranged on the upper edge of the central box 20 . Here, however, the attachment box 10 must first be removed before the coarse filter 5 'can be removed together with the filter bag.

Another filter bag can also be used as a coarse filter be, so that a particularly easy disposal of the Fil occurs by removing and throwing away the two filter bags is possible.

The filtered and purified water flows through the pipe connections 32 and 32 'into the drain pipe 26 ( Fig. 1, 2), via which it is fed to the seepage devices or cisterns.

In the event of suddenly occurring high amounts of water, the unfiltered waste water, as in the previously described embodiments, can flow directly into the seepage device or cisterns via overflow pipes 25 ( FIGS. 1, 2) at an approach piece 8 '.

This embodiment can also be combined with the filter units and / or the distribution units 15 of the first two embodiments.

For example, just with increased water supply, the resulting water can be supplied to the filter units or the distribution unit 15 via the pipes 7 or 23 which are inserted at the corresponding inlet attachment 8 'or pipe connection 22 .

Also in this embodiment, the "modular system" can be composed of basic elements, which in particular comprise a mounting box 10 , a central box 20 and a lower part 30 , the lower part 30 being constructed with shorter dimensions compared to the corresponding lower parts of the previous embodiments can. These parts can also be connected to one another by means of corresponding pipe connections with pipe elements and can be combined both with various filter elements and with the distributor and / or collecting units 15 of the above embodiments.

Reference list

1-4

,

1

'' Fine filter insert

5

,

5

'' Coarse filter insert

6

Sieve openings

7

Connecting pipe (overflow)

8th

,

8th

'Inlet approach

9

cover

10th

Attachment box

11-11

'''Breakout part

12th

Bottom edge

13

Baffle

14

Adapter plate

15

Distribution unit

16

Plug

17th

frame

18th

Base plate

20th

Middle box

21

admission

22

Pipe connection

23

Pipeline

24th

Tee

25th

Overflow pipe

26

Drain pipe

30th

Lower part

31

Weaning room

32

Pipe connection

33

traverse

34

ground

35

Filter pad

Claims (11)

1. Drainage system with built-in seepage devices for seepage of water in the ground or with cistern devices for storing water for later use, and with filter devices ( 1-5 , 13 ) which are connected upstream of the seepage devices or cistern devices and are designed such that they the seepage devices clogging solids or contaminating the cistern devices from the water, the filter devices comprising separate coarse filters ( 5 ), fine filters ( 1-4 ) and distribution and collection units ( 15 ), via which a plurality of coarse filters ( 5 ) or fine filters ( 1-4 ) must be connected in parallel on the input or output side. 2. Drainage system according to claim 1, characterized in that the filter devices ( 1-5 ) and / or distribution and collection units ( 15 ) in substantially identical Ge housing units ( 20 , 30 ) are arranged. 3. Drainage system according to claim 2, characterized in that the housing units comprise individual housing units ( 20 , 30 ) which can be placed on top of one another, with connecting devices ( 22 , 32 ) for connecting pipes ( 23 , 24 ). 4. Drainage system according to one of the preceding claims, characterized by overflow devices ( 7 , 10 ) which are arranged parallel to the filter devices ( 1-5 ) in such a way that in the event of an excessive inflow of water those amounts of water are discharged past the filter devices ( 1-5 ) who the, which exceed a maximum filter throughput of the filter devices ( 1-5 ). 5. Drainage system according to claim 4, characterized in that the overflow devices on the filter devices ( 1-5 ) and / or optionally provided distributor and collecting units ( 15 ) can be placed essentially tightly. 6. Drainage system according to one of the preceding claims, characterized in that the filter means for removing filtered solids and / or for exchanging individually operable filter inserts ( 1-5 ). 7. Drainage system according to one of the preceding claims, characterized in that the filter devices comprise fine filters ( 1-4 ) which are made of water-permeable polymer concrete. 8. drainage system according to claim 7, characterized in that the polymer concrete quartz gravel and / or quartz sand as Has fillers, in particular by means of binders other polyester resin, vinyl ester resin, epoxy resin, Polyurethane resin or polymethyl methacrylate resin or Mixtures thereof are bound together in such a way that an open and binder-free pore space between Filler particles remain. 9. drainage system according to claim 9, characterized in that the quartz gravel and / or quartz sand after a sieve line are combined in such a way that certain grain diameters to create a defined open pore space with  significantly reduced or missing portion provided are. 10. Drainage system according to claim 1, characterized in that the filter devices releasably connected coarse filter ( 5 ') and fine filter ( 1 '). 11. Drainage system according to claim 10, characterized in that the fine filter ( 1 ') envelop the coarse filter ( 5 ') and are made of flexible water-permeable, in particular fleece-like material.