EP0601148B1 - Method and device for delaying the run-off of flash-storm water or ordinary rainwater from roofs and other surfaces with a water-retention capability - Google Patents

Method and device for delaying the run-off of flash-storm water or ordinary rainwater from roofs and other surfaces with a water-retention capability Download PDF

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Publication number
EP0601148B1
EP0601148B1 EP93912535A EP93912535A EP0601148B1 EP 0601148 B1 EP0601148 B1 EP 0601148B1 EP 93912535 A EP93912535 A EP 93912535A EP 93912535 A EP93912535 A EP 93912535A EP 0601148 B1 EP0601148 B1 EP 0601148B1
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EP
European Patent Office
Prior art keywords
water
pipeline
throttle
retention
vortex
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP93912535A
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German (de)
French (fr)
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EP0601148A1 (en
Inventor
Werner Nill
Johannessen Mosbaek
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/0404—Drainage on the roof surface
    • E04D13/0409—Drainage outlets, e.g. gullies
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/0404—Drainage on the roof surface
    • E04D13/0409—Drainage outlets, e.g. gullies
    • E04D2013/0422—Drainage outlets, e.g. gullies for draining water above the roof level, e.g. gullies with overflow ports
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/0404—Drainage on the roof surface
    • E04D13/0409—Drainage outlets, e.g. gullies
    • E04D2013/0427—Drainage outlets, e.g. gullies with means for controlling the flow in the outlet

Definitions

  • the present invention relates to a delayed method Drainage of the meteor or rainwater from roofs and areas with backflow capacity.
  • the invention further relates to a device for delayed outflow of meteor or rainwater from roofs and surfaces with backflow capacity.
  • the object of the invention is to provide a method and an apparatus create that allow with simple means the drain pipes allowable amount of water to the capacity of the sewer network and / or the sewage treatment plant as well as the backwater capacity of the building adapt. Another object is to make the device such to design that their safe function by no other Parameters.
  • the flow restrictor at the inlet of the drain pipe can be arranged directly in the level of the roof or raised and does not have to be placed in a recessed pot, which can weaken the roof or which can lead to great difficulties when retrofitted.
  • the drain pipes inside the house can be routed to the most favorable locations on site and their cross sections only have to be adapted to the highest possible amount of water.
  • the vortex throttle is insensitive to blockages and can be cleaned easily if contaminants prevent a regulated process.
  • the costs for the delayed outflow of the meteor water are low, since no lengthy calculations of the pipe cross-sections and an expensive laying of the pipes within the building are necessary.
  • FIG. 1 a section of a building upper part with a flat roof 3 is shown, which has laterally raised wall sections 5 to form a retention basin 7 for the backflow of rain water temporarily retained during a rain event.
  • the structure of the flat roof 3 is not shown in detail since it is not the subject of this invention.
  • the inclination of the roof 3, which causes the water that collects there to flow to a drain 9, from which it flows through a pipeline 11, which usually runs in the building 10, a sewer line (not shown) or an underground pipe Infiltration can be supplied.
  • the drain 9 in the examples according to FIGS. 1 to 5 is flush with the upper edge of the roof, so that the roof 3 is not weakened in the area of the drain 9 by a collecting basin 13, as shown in the example according to FIG. 6.
  • a vortex throttle 17 On the upper end 15 of the pipe 11 guided through the flat roof 3 is a vortex throttle 17, which in the example according to the Figures 1 to 3 from two parallel plates 19 and 21 consists, the two plates 19,21 by two arcuate vertically standing baffles 23 and 25 are interconnected.
  • the two plates 23 and 25 each have a quarter arc 25 and 27 and then essentially a straight section.
  • a gap or opening 33 from the Width a is provided between each end of a straight section 31 and rectilinear section 29 .
  • the gap-shaped openings 33 and the two Plates 19 and 21 form the inlet for the water inlet Pipeline 11, which is located in the center of the vortex throttle 17 and connects to a pipe socket 16.
  • a corresponding recess 22 is attached, which with the upper end 15 of the pipeline 11 is connected.
  • On the recess 22 can replaceable drainage orifice 12 with a tubular part 16 or be plugged in with the maximum flow rate can also be set or changed subsequently.
  • a pipe socket 35 of height h can also be placed in the upper plate 19, which forms a direct connection into the interior of the vortex throttle 17 and lies coaxially with the upper end 15 of the pipeline 11.
  • the upper edge 37 of the pipe socket 35 is at the height h max. , which corresponds to the maximum accumulation height in the retention basin 7.
  • the diving bell 40 has a jacket 42 and a lid portion 44. Between the top End of the tube 35 and the lid section 44 is at least that Cross section of the tube 35 corresponding gap kept open. On the Contaminants are floating through the water surface Shell surface 42 retained and the water under the jacket 42nd flow through to the pipeline 35.
  • the vortex throttle 17 can be made of steel or plastic be.
  • the top plate 19, e.g. by loosening wing nuts 39, which correspond to corresponding Screw bolts which are passed through the plate 19 and to the vertical plates 23 and 25 are attached to be lifted off. by one To allow cleaning of the inside of the vortex throttle 17.
  • one or more times folded baffles 24, 26 welded together from sections be connected to the two plates 19 and 21 in the manner described.
  • the guide plates 24 are each bent twice bent and have straight sections 24, 26.
  • the Openings 33 can be fixed or, as shown in FIG. 2, changeable be trained (no illustration).
  • a pipe socket 35 placed on the vortex throttle 17 as an emergency relief or overflow
  • a pipe section 41 ending at the same height can of course also be connected directly to the pipe 11 or an additional pipe leading to the sewage system (no illustration). be connected.
  • the entire vortex throttle is used to prevent the gap 33 from becoming blocked 17 preferably surrounded by a removable grid 43.
  • the Grid 43 can completely complete the vortex throttle 17 laterally and above enclose (Figure 1) or as an open top round or rectangular Basket 48 may be formed (Figure 15).
  • the vortex throttles 17, 45 can also be used directly in a gravel bed on the flat roof 3.
  • the functioning of vortex chokes is described for example in US-A-3,198,214. There is therefore no further information on the functioning and the design of vortex chokes.
  • the vortex throttles 17,45 placed directly on the surface of the flat roof 3 these can of course also be arranged within a sump 51 sunk in the flat roof 3 (FIG. 6).
  • Vortex throttle 45 For a temporary backflow of rainwater in large quantities inflows than can be taken up by the sewage treatment plant, can also a vortex throttle 45, as shown in Figure 11, used will.
  • This vortex throttle 45 has no through it ongoing emergency overflow, but this must be independent and at others Be provided on the roof.
  • emergency overflow lines 35 In the configurations of the Vortex chokes in FIGS. 12, 13 and 14 are emergency overflow lines 35 provided which are arranged coaxially to the throttle 45.
  • the emergency overflow line In the The simplest version according to FIG. 12 is the emergency overflow line at the top open.
  • a semicircular elbow 52 put on, which prevents the pent up on the surface Water-contaminating contaminants get into the emergency transmission line and can clog them.
  • the vortex throttle 77 shown schematically in FIG. 16 has one Inlet 79, which opens into the upper surface.
  • This Vortex choke 77 can either be in a sump, as in FIG. 6 shown, or on a roof with permanent backflow from the height a be used.
  • the vortex throttle 69 shown in FIG. 17 can be radial Inlet connection 71 may be provided or additionally a tangential Have inlet 73.
  • the tangential inlet 73 can be higher than the inlet connection 71. This makes it possible, in the event of a Blockage of the lower inlet 71 as an emergency inlet with Throttle characteristics to act.
  • a colander 75 can be placed in front.
  • the colander 75 consists of a tubular section, the front is closed, and is made of perforated sheet or of grid-shaped material produced.
  • the use of the vortex throttle 69 shown in FIG. 17 follows analogously to the others already described.
  • the outlet-side opening of the vortex throttle 55 is arranged above the knot h 3 .
  • the vertically arranged vortex throttle 55 can have a configuration corresponding to the vortex throttle 45 shown in FIG. 4, the water inlet opening 47 being located below the knot h 3 .
  • a vortex throttle 17, as shown in FIGS. 2, 7, 8 and 9, could also be used if one of the two inflow openings, namely the one at the top, is closed.
  • the emergency overflow line 35 is arranged in the vertical extension of the pipeline 11 and can have a hood or diving bell 40, as is described and illustrated in FIG. 14, in order to prevent the entry of floating contaminants.
  • a baffle 67 can also be arranged around the inlet 47 of the vortex throttle 55.
  • the baffle 67 consists of vertically formed sheets or plastic plates which prevent the entry of floating contaminants to the water inlet opening 47.
  • the vortex throttle 55 or its outlet-side opening 47 lies on the hull h 3 , which corresponds to the intended height of the continuous congestion. With a further rise in the water level, as long as it does not exceed the level h 4 . allow the water to flow unrestricted to the pipeline 11. If the hote h 4 is exceeded, the effect of the vortex throttle 55 begins.
  • the vortex throttle 55 in the embodiment of the invention according to FIG. 19 is arranged on the level of the roof 3, its mode of operation corresponds to that in FIG. 1.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Sewage (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Measuring Arrangements Characterized By The Use Of Fluids (AREA)
  • Measuring Volume Flow (AREA)

Abstract

PCT No. PCT/CH93/00165 Sec. 371 Date Feb. 18, 1994 Sec. 102(e) Date Feb. 18, 1994 PCT Filed Jun. 29, 1993 PCT Pub. No. WO94/00653 PCT Pub. Date Jan. 6, 1994.In order to retain water on the roofs of buildings with a water-retention basin, a vortex-type throttle valve is to be fitted on the flat roof and is to be connected to a drain pipe leading to a drain. The throttle valve makes it possible to control the rainwater run-off at a given rate determined by the size of the throttle valve. If rain falls at a high rate, the excess is retained. Overflow protection is provided by fitting on top of the throttle, a length of pipe which permits the unrestricted flow of water through the throttle valve. Alternatively, the drain pipe can be extended upwards to the maximum permitted water-retention level, thus allowing the water which exceeds this level to pass directly into the drain pipe.

Description

Gegenstand der vorliegenden Erfindung ist ein Verfahren zum verzögerten Abfluss des Meteor- oder Regenwassers von Dächern und Flächen mit Rückstaukapazität. Gegenstand der Erfindung ist weiter eine Vorrichtung zum verzögerten Abfluss des Meteor- oder Regenwassers von Dächern und Flachen mit Rückstaukapazität.The present invention relates to a delayed method Drainage of the meteor or rainwater from roofs and areas with backflow capacity. The invention further relates to a device for delayed outflow of meteor or rainwater from roofs and surfaces with backflow capacity.

Durch die intensive Bautätigkeit der letzten Jahre hat die Versiegelung der Oberflächen in den Siedlungsgebieten zugenommen. Das in den versiegelten Oberflächen anfallende Meteorwasser wird dadurch nicht mehr auf natürliche Weise langsam von der Natur aufgenommen, sondern es fliesst sehr rasch menr oder weniger stark verschmutzt ab. Dies hat dazu geführt, dass von staatlicher Seite bei grösseren Bauten Schritte unternommen werden, das anfallende Meteorwasser, z.B. bei starken Regenfällen, an Ort und Stelle zurückzuhalten und/oder erst nachträglich verzögert weiterzuleiten oder versickern zu lassen.Due to the intensive construction activity in recent years, the sealing has of the surface areas in the settlement areas increased. That in the sealed As a result, surface meteor water is no longer exposed naturally absorbed slowly by nature, but it flows very quickly or less heavily soiled. This has resulted in that the state takes steps for larger buildings the resulting meteor water, e.g. during heavy rains, withhold on the spot and / or delayed afterwards to pass on or to seep away.

Es ist schon vorgeschlagen worden, insbesondere bei Flachdachbauten, das Regenwasser vorerst auf dem Dach zu stauen und gedrosselt der Kanalisation zuzuführen (vgl. US-A-4 400 272 oder DE-A-1806527). Zum Ausgleich hoher Temperaturunterschiede wird häufig eine vorgegebene Wassermenge dauernd auf dem Dach zurückgehalten.It has already been proposed, especially for flat roof structures, that Rainwater initially dammed up on the roof and throttled the sewer system to supply (see. US-A-4 400 272 or DE-A-1806527). To compensate for high temperature differences is common a predetermined amount of water is permanently retained on the roof.

Bei einer bekannten Ausführungsform (vgl. DE-A-1806527) werden die Leitungsquerschnitte der vom Dach zur Kanalisation führenden Leitungen entsprechend klein dimensioniert, damit nur die vorgeschriebene zulässige Menge abfliessen kann. In a known embodiment (see. DE-A-1806527) the line cross sections of the Correspondingly small lines leading from the roof to the sewage system, so that only the prescribed permissible quantity can flow off.

Dabei genügt es allerdings nicht, nur die Leitungsquerschnitte entsprechend zu dimensionieren, sondern die Verlegung der Leitungen und deren Gefälle sowie deren hydraulische Höhen sind alles Parameter, die in eine solche Berechnung eingeschlossen werden müssen. Folglich ist die Berechnung und die Montage eines solchen Ablaufrohrsystems sehr aufwendig und die Führung der Leitungen, insbesondere wenn nach dem Prinzip der horizontal verlegten Sammelleitungen gearbeitet wird, oft mit hohen Kosten und mit ästhetischen Problemen innerhalb der Gebäude verbunden.However, it is not enough to do this, just the cable cross-sections accordingly dimension, but the laying of the lines and their Slopes and their hydraulic heights are all parameters that can be such calculation must be included. Hence the calculation and the assembly of such a drain pipe system is very complex and the management of the lines, especially if according to the principle of horizontal installed manifolds, often with high costs and associated with aesthetic problems within the building.

Die Aufgabe der Erfindung ist es, ein Verfahren und eine Vorrichtung zu schaffen, die es mit einfachen Mitteln ermöglichen, die den Abflussleitungen zutliessende Wassermenge an die Kapazität des Kanalnetzes und/oder der Kläranlage sowie an die Rückstaukapazität des Bauwerkes anzupassen. Eine weitere Aufgabe besteht darin, die Vorrichtung derart auszugestalten, dass deren sichere Funktion von keinen weiteren Parametern abhängig ist.The object of the invention is to provide a method and an apparatus create that allow with simple means the drain pipes allowable amount of water to the capacity of the sewer network and / or the sewage treatment plant as well as the backwater capacity of the building adapt. Another object is to make the device such to design that their safe function by no other Parameters.

Gelöst werden diese Aufgaben durch die Merkmale Tier Patentansprüche 1 und 3.
Es gelingt durch eine Drosselung der Wassermenge, welche dem Abflussrohr zufliesst, unabhängig von der Auslegung der Rohrleitungen, welche vom Dach zur Kanalisation führen, die maximal abfliessende Menge genau festzulegen, Wassermengen, welche unterhalb der maximalen Kapazität liegen, können stets ungehindert ablaufen. Übersteigt die zufliessende Menge die Kapazität des Drosselorganes, so erfolgt ein Rückstau auf dem Dach. Durch ein in der Drossel oder separat angeordnetes Notablaufrohr kann beim Übersteigen der maximalen Uberstaukapazität des Daches das zusätzlich zufliessende Wasser direkt unter Umgehung der Drossel abgeleitet werden. Die Mengendrossel am Einlauf des Abflussrohres kann direkt in der Ebene des Daches oder erhöht angeordnet werden und muss nicht in einen versenkten Topf eingebracht werden, welcher zu einer Schwächung des Daches führen kann oder welcher bei einem nachträglichen Einbau zu grossen Schwierigkeiten führen kann. Die Abtlussleitungen innerhalb des Hauses können an den bauseits günstigsten Stellen geführt werden und deren Querschnitte müssen nur an die höchst mögliche Wassermenge angepasst sein. Die Wirbeldrossel ist unempfindlich gegen Verstopfungen und kann, sollten dennoch Verunreinigungen einen geregelten Ablauf verhindern, in einfacher Weise gereinigt werden. Die Kosten für den verzögerten Abfluss des Meteorwassers sind gering, da keine langwierigen Berechnungen der Rohrquerschnitte und eine teure Verlegung der Rohre innerhalb des Gebäudes nötig sind.These tasks are solved by the features of animal claims 1 and 3.
By throttling the amount of water that flows into the drain pipe, regardless of the design of the pipes that lead from the roof to the sewage system, it is possible to precisely determine the maximum amount of water that can be drained off; amounts of water that are below the maximum capacity can always flow freely. If the amount flowing in exceeds the capacity of the throttle element, there is a backlog on the roof. By means of an emergency drain pipe arranged in the throttle or separately, if the maximum overflow capacity of the roof is exceeded, the additionally flowing water can be drained off directly bypassing the throttle. The flow restrictor at the inlet of the drain pipe can be arranged directly in the level of the roof or raised and does not have to be placed in a recessed pot, which can weaken the roof or which can lead to great difficulties when retrofitted. The drain pipes inside the house can be routed to the most favorable locations on site and their cross sections only have to be adapted to the highest possible amount of water. The vortex throttle is insensitive to blockages and can be cleaned easily if contaminants prevent a regulated process. The costs for the delayed outflow of the meteor water are low, since no lengthy calculations of the pipe cross-sections and an expensive laying of the pipes within the building are necessary.

Anhand illustrierter Ausführungsbeispiele wird die Erfindung näher erläutert. Es zeigen:

Figur 1
einen Ausschnitt eines Flachdaches mit Retensions-Aufstaukapazität und mit einer Abflussdrossel,
Figur 2
einen Schnitt längs Linie II-II in Figur 3 der Vorrichtung zum verzögerten Abfluss des Dachwassers,
Figur 3
einen Querschnitt längs Linie III-III der Vorrichtung in Figur 2,
Figur 4
eine weitere Ausführung der Vorrichtung für einen verzögerten Abfluss als Aufsicht,
Figur 5
eine Seitenansicht der Vorrichtung in Figur 4,
Figur 6
eine Anordnung der Vorrichtung in den Figuren 4 und 5 in einem Einlaufbecken,
Figur 7
einen Horizontalquerschnitt durch eine alternative Ausführung der Wirbeldrossel aus geknickten Blechteilen,
Figur 8
eine Ansicht der Wirbeldrossel in Figur 7,
Figur 9
einen Horizontalquerschnitt durch eine alternative Ausführung der Wirbeldrossel aus abgekanteten Blechteilen,
Figur 10
eine Ansicht der Wirbeldrossel in Figur 8,
Figur 11
eine Wirbeldrossel mit tangentialen gleichsinnigen Zuläufen, ohne Notüberlauf durch die Wirbeldrossel,
Figur 12
eine Wirbeldrossel mit zwei gleichsinnigen Zuläufen mit einem einem Notüberlauf,
Figur 13
eine Wirbeldrossel wie in Figur 12 mit einem siphonartigen Notüberlauf,
Figur 14
eine Wirbeldrossel mit einem durch einen Tauchkörper abgedeckten Notüberlauf,
Figur 15
einen Querschnitt durch eine in einen Adapter eingebaute Wirbeldrossel, aufgesetzt auf eine bestehende Ablauföffnung (Wirbeldrossel in Ansicht dargestellt),
Figur 16
eine perspektivische Darstellung einer Wirbeldrossel mit Einlauf überhöht, von oben,
Figur 17
eine Grundriss einer Wirbeldrossel mit radialem und tangentialem Einlauf (tangentialer Einlauf in gebrochenen Linien),
Figur 18
einen Ausschnitt eines Flachdaches mit einem Dauerstau und einer vertikalen angeordneten Wirbeldrossel,
Figur 19
eine alternative Ausführungsform einer liegend angeordneten Wirbeldrossel für ein Flachdach mit Dauerstau.
The invention is explained in more detail on the basis of illustrated exemplary embodiments. Show it:
Figure 1
a section of a flat roof with retention retention capacity and with a drain throttle,
Figure 2
3 shows a section along line II-II in FIG. 3 of the device for delayed outflow of the roof water,
Figure 3
3 shows a cross section along line III-III of the device in FIG. 2,
Figure 4
a further embodiment of the device for a delayed drain as a supervision,
Figure 5
3 shows a side view of the device in FIG. 4,
Figure 6
4 shows an arrangement of the device in FIGS. 4 and 5 in an inlet basin,
Figure 7
a horizontal cross section through an alternative design of the vortex throttle made of bent sheet metal parts,
Figure 8
7 shows a view of the vortex throttle in FIG. 7,
Figure 9
a horizontal cross section through an alternative design of the vortex throttle made of bent sheet metal parts,
Figure 10
8 shows a view of the vortex throttle in FIG. 8,
Figure 11
a vortex throttle with tangential inlets in the same direction, without an emergency overflow through the vortex throttle,
Figure 12
a vortex throttle with two inlets in the same direction with one emergency overflow,
Figure 13
a vortex throttle as in FIG. 12 with a siphon-like emergency overflow,
Figure 14
a vortex throttle with an emergency overflow covered by a plunger,
Figure 15
a cross section through a vortex throttle installed in an adapter, placed on an existing drain opening (vortex throttle shown in view),
Figure 16
a perspective view of a vortex throttle with inflated inflow, from above,
Figure 17
a floor plan of a vortex throttle with radial and tangential inlet (tangential inlet in broken lines),
Figure 18
a section of a flat roof with a permanent accumulation and a vertically arranged vortex choke,
Figure 19
an alternative embodiment of a lying vortex choke for a flat roof with permanent accumulation.

Mit Bezugszeichen 1 in Figur 1 ist ausschnittweise ein Gebäudeoberteil mit einem Flachdach 3 dargestellt, welches seitlich hochgezogene Mauerabschnitte 5 zur Bildung eines Retensionsbeckens 7 für den Rückstau von während eines Regenereignisses temporär zurückgehaltenes Regenwasser aufweist. Der Aufbau des Flachdaches 3 ist im einzelnen nicht dargestellt, da er nicht Gegenstand dieser Erfindung ist. Ebenfalls nicht sichtbar dargestellt ist die Neigung des Daches 3, welche bewirkt, dass das dort sich sammelnde Wasser zu einem Abfluss 9 fliessen kann, von welchem es durch eine üblicherweise im Gebäude 10 verlaufende Rohrleitung 11 einer im Erdreich verlegten Kanalisationsleitung (nicht dargestellt) oder eine Versickerung zugeführt werden kann.
Der Abfluss 9 ist in den Beispielen nach den Figuren 1 bis 5 bündig mit der Oberkante des Daches, so dass keine Schwächung des Daches 3 im Bereich des Abflusses 9 durch ein Sammelbecken 13, wie es im Beispiel nach Figur 6 dargestellt ist, erfolgt.With reference number 1 in FIG. 1, a section of a building upper part with a flat roof 3 is shown, which has laterally raised wall sections 5 to form a retention basin 7 for the backflow of rain water temporarily retained during a rain event. The structure of the flat roof 3 is not shown in detail since it is not the subject of this invention. Also not shown is the inclination of the roof 3, which causes the water that collects there to flow to a drain 9, from which it flows through a pipeline 11, which usually runs in the building 10, a sewer line (not shown) or an underground pipe Infiltration can be supplied.
The drain 9 in the examples according to FIGS. 1 to 5 is flush with the upper edge of the roof, so that the roof 3 is not weakened in the area of the drain 9 by a collecting basin 13, as shown in the example according to FIG. 6.

Auf das ohere Ende 15 der durch das Flachdach 3 geführten Rohrleitung 11 ist eine Wirbeldrossel 17 aufgesetzt, welche in dem Beispiel gemäss den Figuren 1 bis 3 aus zwei parallel zueinander angeordneten Platten 19 und 21 besteht, wobei die beiden Platten 19,21 durch zwei bogenförmige vertikal stehende Leitbleche 23 und 25 miteinander verbunden sind. Die beiden Platten 23 und 25 weisen je einen Viertelsbogen 25 und 27 und daran anschliessend im wesentlichen je einen geradlinigen Abschnitt auf. Zwischen je einem Ende eines geradlinigen Abschnittes 31 und dem geradlinigen Abschnitt 29 ist ein Spalt oder eine Öffnung 33 von der Breite a vorgesehen. Die spaltförmigen Öffnungen 33 und die beiden Platten 19 und 21 bilden den Einlass für den Zulauf des Wassers zur Rohrleitung 11, welche sich im Zentrum der Wirbeldrossel 17 befindet und an einen Rohrstutzen 16 anschliesst. In der unteren Platte 21 ist daher eine entsprechende Ausnehmung 22 angebracht, welche mit dem oberen Ende 15 der Rohrleitung 11 verbunden ist. Auf der Ausnehmung 22 kann eine austauschbare Abflussblende 12 mit einem Rohrteil 16 aufgesetzt oder eingesteckt sein, mit der die maximal durchfliessende Abflussmenge zusätzlich und auch nachträglich eingestellt oder verändert werden kann.On the upper end 15 of the pipe 11 guided through the flat roof 3 is a vortex throttle 17, which in the example according to the Figures 1 to 3 from two parallel plates 19 and 21 consists, the two plates 19,21 by two arcuate vertically standing baffles 23 and 25 are interconnected. The two plates 23 and 25 each have a quarter arc 25 and 27 and then essentially a straight section. Between each end of a straight section 31 and rectilinear section 29 is a gap or opening 33 from the Width a is provided. The gap-shaped openings 33 and the two Plates 19 and 21 form the inlet for the water inlet Pipeline 11, which is located in the center of the vortex throttle 17 and connects to a pipe socket 16. In the lower plate 21 is therefore a corresponding recess 22 is attached, which with the upper end 15 of the pipeline 11 is connected. On the recess 22 can replaceable drainage orifice 12 with a tubular part 16 or be plugged in with the maximum flow rate can also be set or changed subsequently.

Auch in der oberen Platte 19 kann ein Rohrstutzen 35 von der Höhe h aufgesetzt sein, welcher eine direkte Verbindung ins Innere der Wirbeldrossel 17 bildet und koaxial zum oberen Ende 15 der Rohrleitung 11 liegt. Die Oberkante 37 des Rohrstutzens 35 liegt auf der Höhe hmax., welcher der maximalen Einstauhöhe im Retensionsbecken 7 entspricht.A pipe socket 35 of height h can also be placed in the upper plate 19, which forms a direct connection into the interior of the vortex throttle 17 and lies coaxially with the upper end 15 of the pipeline 11. The upper edge 37 of the pipe socket 35 is at the height h max. , which corresponds to the maximum accumulation height in the retention basin 7.

Zum Schutz gegen Verunreinigungen, die auf dem aufgestauten zurückgehaltenen Wasser schwimmen und welche die Wirbeldrossel verstopfen könnten, kann auf das obere Ende des Rohrstutzens 35 ein halbkreisförmiges Rohrstück 38, wie es beispielsweise in den Figuren 13 und 19 dargestellt ist oder eine Tauchglocke 40, wie sie beispielsweise in Figur 14 dargestellt ist, aufgesetzt sein. Die Tauchglocke 40 weist einen Mantel 42 und einen Deckelabschnitt 44 auf. Zwischen dem oberen Ende des Rohres 35 und dem Deckelabschnit 44 ist ein mindestens dem Querschnitt des Rohres 35 entsprechender Spalt offengehalten. Auf der Wasseroberfläche schwimmende Verunreinigungen werden durch die Mantelfläche 42 zurückgehalten und das Wasser kann unter dem Mantel 42 hindurch zur Rohrleitung 35 fliessen.To protect against impurities on the pent up retained water swim and which the vortex throttle could clog, can on the upper end of the pipe socket 35 semicircular pipe piece 38, as it is for example in the figures 13th and 19 or a diving bell 40, such as, for example is shown in Figure 14, be placed. The diving bell 40 has a jacket 42 and a lid portion 44. Between the top End of the tube 35 and the lid section 44 is at least that Cross section of the tube 35 corresponding gap kept open. On the Contaminants are floating through the water surface Shell surface 42 retained and the water under the jacket 42nd flow through to the pipeline 35.

Die Wirbeldrossel 17 kann aus Stahl oder aus Kunststoff hergestellt sein. In einer bevorzugten Ausführung kann die obere Platte 19, z.B. durch Lösen von Flügelmuttern 39, welche auf entsprechenden Schraubbolzen, die durch die Platte 19 hindurchgeführt und an den vertikalen Platten 23 und 25 angebracht sind, abgehoben werden. um eine Reinigung des Innern der Wirbeldrossel 17 zu ermöglichen.The vortex throttle 17 can be made of steel or plastic be. In a preferred embodiment, the top plate 19, e.g. by loosening wing nuts 39, which correspond to corresponding Screw bolts which are passed through the plate 19 and to the vertical plates 23 and 25 are attached to be lifted off. by one To allow cleaning of the inside of the vortex throttle 17.

Anstelle von bogenförmigen Leitblechen 23 können auch ein- oder mehrfach abgekantete oder aus Abschnitten zusammengeschweisste Leitbleche 24, 26 in beschriebener Weise mit den beiden Platten 19 und 21 verbunden sein. In den Figuren 7 und 8 sind die Leitbleche 24 je zweimal durch Abkanten gebogen und weisen gerade verlaufende Abschnitte 24, 26 auf. Die Öffnungen 33 können fest oder, wie in Figur 2 dargestellt, veränderlich ausgebildet sein (keine Abbildung). Instead of arcuate baffles 23, one or more times folded baffles 24, 26 welded together from sections be connected to the two plates 19 and 21 in the manner described. In FIGS. 7 and 8, the guide plates 24 are each bent twice bent and have straight sections 24, 26. The Openings 33 can be fixed or, as shown in FIG. 2, changeable be trained (no illustration).

Bei geringem Wasserzufluss, d.h bei leichtem Regen, kann sämtliches zufliessendes Wasser kontinuierlich durch die Offnungen 33 in das Innere der Wirbeldrossel 17 und von dort durch die Leitung 11 in die Kanalisation gelangen.
Sobald die zufliessende Wassermenge grösser wird, bilden sich im Innern der Wirbeldrossel 17 umlaufende Wasserwirbel, die in Abhängigkeit vom Querschnitt a der Öffnung 33 und der Ausbildung der beiden vertikal gebogenen Platten 23 und 25 bzw. der Platten 24 in den Figuren 7 bis 10 und dem Querschnitt der Rohrleitung 11 oder der allenfalls darüber angeordneten Abflussblende 12 den Abfluss begrenzen. Dadurch wird das zuviel zufliessende Wasser über der Wirbeldrossel 17 im Retensionsbecken 7 aufgestaut und es fliesst stets eine gleichbleibende Menge ab.
Übersteigt der Wasserspiegel die Höhe hmax., wodurch die Gefahr einer Überflutung des Daches entsteht, so kann durch den Rohrstutzen 35 Wasser direkt von oben durch die Wirbeldrossel 17 hindurch zur Rohrleitung 11 und von dort z.B. in die Kanalisation gelangen. Anstelle eines auf der Wirbeldrossel 17 aufgesetzten Rohrstutzens 35 als Notentlastung oder -überlauf kann selbstverständlich auch ein auf gleicher Höhe endender Rohrleitungsabschnitt 41 (in Figur 1 in gebrochenen Linien dargestellt) direkt mit der Leitung 11 oder einer zusätzlichen zur Kanalisation führenden Leitung (keine Abb.) verbunden sein.With a small inflow of water, ie with light rain, all the inflowing water can flow continuously through the openings 33 into the interior of the vortex throttle 17 and from there through the line 11 into the sewage system.
As soon as the amount of water flowing in increases, circulating water vortices form inside the vortex throttle 17, which, depending on the cross section a of the opening 33 and the design of the two vertically curved plates 23 and 25 or the plates 24 in FIGS. 7 to 10 and the like Cross-section of the pipeline 11 or the drainage orifice 12 which may be arranged above it limits the outflow. As a result, the excess water flowing in is accumulated above the vortex throttle 17 in the retention basin 7 and a constant amount always flows away.
If the water level exceeds the height h max. , whereby there is a risk of flooding the roof, water can pass through the pipe socket 35 directly from above through the vortex throttle 17 to the pipeline 11 and from there into the sewage system, for example. Instead of a pipe socket 35 placed on the vortex throttle 17 as an emergency relief or overflow, a pipe section 41 ending at the same height (shown in broken lines in FIG. 1) can of course also be connected directly to the pipe 11 or an additional pipe leading to the sewage system (no illustration). be connected.

Zur Verhinderung einer Verstopfung des Spaltes 33 ist die gesamte Wirbeldrossel 17 vorzugsweise von einem abnehmbaren Gitter 43 umgeben. Das Gitter 43 kann die Wirbeldrossel 17 seitlich und oben vollständig umschliessen (Figur 1) oder als oben offener runder oder rechteckiger Korb 48 ausgebildet sein (Figur 15).The entire vortex throttle is used to prevent the gap 33 from becoming blocked 17 preferably surrounded by a removable grid 43. The Grid 43 can completely complete the vortex throttle 17 laterally and above enclose (Figure 1) or as an open top round or rectangular Basket 48 may be formed (Figure 15).

Um mit einem geringen Lagerbestand an Wirbeldrosseln 17 auszukommen, kann bei kleiner maximaler Abflussmenge bei einer für die abzuleitende Wassermenge zu gross bemessenen Wirbeldrossel 17 mindestens eine der Öffnungen 33 durch einen Deckel verschlossen (keine Abb.) oder durch den verstellbaren Schieber 34 verkleinert oder verschlossen werden (Fig. 2).In order to get by with a small inventory of vortex chokes 17, can with a small maximum discharge amount for one to be derived Water volume too large vortex throttle 17 at least one of the Openings 33 are closed by a cover (not shown) or by the adjustable slider 34 can be reduced or closed (Fig. 2).

In der Ausführung nach den Figuren 4 bis 6 tritt anstelle der aus zwei gebogenen Blechen 25, 27 und zwei in einem Abstand übereinander liegenden Platten 19 und 21 bestehenden Wirbeldrossel eine zylinderförmige Wirbeldrossel 45 bekannter Bauart, wie sie in Regenbecken Verwendung findet, bei der das Wasser durch eine tangential einmündende Zutrittsöffnung 47 eintritt und durch die zentrale Abflussöffnung 49 gedrosselt abfliessen kann. Die Funktionsweise der in den Figuren 4 bis 6 dargestellten Wirbeldrosseln 45 ist identisch mit derjenigen in den Figuren 1 bis 3 gezeigten. Auch diese Wirbeldrosseln 45 können durch einen Korb oder ein Gitter 43 gegen Verschmutzung geschützt werden.In the embodiment according to Figures 4 to 6 occurs instead of two curved sheets 25, 27 and two at a distance one above the other lying plates 19 and 21 existing vortex choke a cylindrical vortex choke 45 known type, as in Rain basin is used in which the water is tangential confluent access opening 47 enters and through the central Drain opening 49 can flow throttled. How the in The vortex chokes 45 shown in FIGS. 4 to 6 are identical to those shown in Figures 1 to 3. These vortex chokes too 45 can by a basket or a grid 43 against pollution to be protected.

Die Wirbeidrosseln 17, 45 können auch direkt in einem Kiesbett auf dem Flachdach 3 eingesetzt werden.
Die Funktionsweise von Wirbeldrosseln ist beispielsweise in der US-A-3,198,214 beschrieben. Es werden daher keine weiteren Angaben über die Funktionsweise und die Auslegung von Wirbeldrosseln gemacht. Alternativ zu den direkt auf der Oberfläche des Flachdaches 3 aufgesetzten Wirbeldrosseln 17,45 können diese selbstverständlich auch innerhalb eines im Flachdach 3 versenkt in einem Sumpf 51 angeordnet sein (Figur 6).The vortex throttles 17, 45 can also be used directly in a gravel bed on the flat roof 3.
The functioning of vortex chokes is described for example in US-A-3,198,214. There is therefore no further information on the functioning and the design of vortex chokes. As an alternative to the vortex throttles 17,45 placed directly on the surface of the flat roof 3, these can of course also be arranged within a sump 51 sunk in the flat roof 3 (FIG. 6).

Für einen temporären Rückstau von Regenwasser, das in grösserer Menge zufliesst, als von der Kläranlage aufgenommen werden kann, kann auch eine Wirbeldrossel 45, wie sie in Figur 11 dargestellt ist, eingesetzt werden. Diese Wirbeldrossel 45 besitzt keinen durch sie hindurch verlaufenden Notüberlauf, sondern dieser muss unabhängig und an anderer Stelle auf dem Dach vorgesehen sein. In den Ausgestaltungen der Wirbeldrosseln in den Figuren 12, 13 und 14 sind Notüberlaufleitungen 35 vorgesehen, die koaxial zur Drossel 45 angeordnet sind. In der einfachsten Ausführung gemäss Figur 12 ist die Notüberlaufleitung oben offen. In der Ausgestaltung nach Figur 13 ist auf dem Ende des Rohrstutzens 35 der Notüberlaufleitung ein halbkreisförmiger Rohrbogen 52 aufgesetzt, der verhindert, dass auf der Oberfläche des aufgestauten Wassers schwimmende Verunreinigungen in die Notüberlautleitung gelangen und diese verstopfen können.For a temporary backflow of rainwater in large quantities inflows than can be taken up by the sewage treatment plant, can also a vortex throttle 45, as shown in Figure 11, used will. This vortex throttle 45 has no through it ongoing emergency overflow, but this must be independent and at others Be provided on the roof. In the configurations of the Vortex chokes in FIGS. 12, 13 and 14 are emergency overflow lines 35 provided which are arranged coaxially to the throttle 45. In the The simplest version according to FIG. 12 is the emergency overflow line at the top open. In the embodiment according to FIG. 13, at the end of the Pipe socket 35 of the emergency overflow line a semicircular elbow 52 put on, which prevents the pent up on the surface Water-contaminating contaminants get into the emergency transmission line and can clog them.

Bei einem nachträglichen Einbau einer Wirbeldrossel 17 auf dem Dach eines bestehenden Gebäudes 10, bei dem das obere Ende 15 der Rohrleitung 11 einen wesentlich grösseren Querschnitt aufweist, als der Durchmesser der ablaufseitigen Öffnung an der Wirbeldrossel 17, kann diese auf einem Adapter 54 befestigt sein, welcher aus einer Platte 62 besteht, an der ein Kragen 64 befestigt ist und in das obere Ende 15 der Leitung 11 einsteckbar ist (Figur 15).With a subsequent installation of a vortex throttle 17 on the roof an existing building 10, in which the upper end 15 of the pipeline 11 has a substantially larger cross section than the diameter the outlet opening on the vortex throttle 17, this can on a Be attached adapter 54, which consists of a plate 62 on the a collar 64 is attached and into the upper end 15 of the conduit 11 is insertable (Figure 15).

Die in Figur 16 schematisch dargestellte Wirbeldrossel 77 weist einen Einlauf 79 auf, der in die obere Deckfläche einmündet. Diese Wirbeldrossel 77 kann entweder in einem Sumpf, wie in Figur 6 dargestellt, oder auf einem Dach mit Dauerrückstau von der Höhe a eingesetzt werden.The vortex throttle 77 shown schematically in FIG. 16 has one Inlet 79, which opens into the upper surface. This Vortex choke 77 can either be in a sump, as in FIG. 6 shown, or on a roof with permanent backflow from the height a be used.

Die in Figur 17 dargestellte Wirbeldrossel 69 kann mit einem radialen Einlaufstutzen 71 versehen sein oder zusätzlich einen tangentialen Einlauf 73 aufweisen. Der tangentiale Einlauf 73 kann höherliegend sein als der Einlaufstutzen 71. Dies ermöglicht es, bei einer allfälligen Verstopfung des tieferliegenden Einlaufes 71 als Noteinlauf mit Drosseleigenschaften zu fungieren. Vor dem tieferliegenden Einlauf 71 kann anstelle eines die gesamte Wirbeldrossel 69 umgebenden Gitters 43, wie in Figur 1 gezeigt, ein Seiher 75 vorgesetzt sein. Der Seiher 75 besteht dabei aus einem rohrförmigen Abschnitt, der stirnseitig verschlossen ist, und ist aus Lochblech oder aus gitterförmigem Material hergestellt. Der Einsatz der in Figur 17 dargestellten Wirbeldrossel 69 folgt analog zu den übrigen bereits beschriebenen.The vortex throttle 69 shown in FIG. 17 can be radial Inlet connection 71 may be provided or additionally a tangential Have inlet 73. The tangential inlet 73 can be higher than the inlet connection 71. This makes it possible, in the event of a Blockage of the lower inlet 71 as an emergency inlet with Throttle characteristics to act. In front of the lower inlet 71 Instead of a grid 43 surrounding the entire vortex throttle 69, As shown in Figure 1, a colander 75 can be placed in front. The colander 75 consists of a tubular section, the front is closed, and is made of perforated sheet or of grid-shaped material produced. The use of the vortex throttle 69 shown in FIG. 17 follows analogously to the others already described.

Bei Flachdächern 3 mit permanentem Überstau von Wasser bis zur Höhe h3 (vgl. Figur 18) ist die auslaufseitige Öffnung der Wirbeldrossel 55 oberhalb der Kote h3 angeordnet. Die vertikal angeordnete Wirbeldrossel 55 kann eine Ausbildung entsprechend der in Figur 4 dargestellten Wirbeldrossel 45 aufweisen, wobei die Wasserzutrittsöffnung 47 sich unterhalb der Kote h3 befindet. Selbstverständlich könnte auch eine Wirbeldrossel 17, wie sie in den Figuren 2, 7, 8 und 9 dargestellt ist, eingesetzt werden, wenn eine der beiden Zuflussöffnungen, nämlich die obenliegende, verschlossen wird. Die Notüberlaufleitung 35 ist in der vertikalen Verlängerung der Rohrleitung 11 angeordnet und kann zur Verhinderung des Zutritts von aufschwimmenden Verunreinigungen eine Haube oder Tauchglocke 40 aufweisen, wie sie in Figur 14 beschrieben und dargestellt ist. Auch um den Einlauf 47 der Wirbeldrossel 55 herum kann eine Tauchwand 67 angeordnet sein. Die Tauchwand 67 besteht aus vertikalgesteliten Blechen oder Kunststoffplatten, welche den Zutritt von aufschwimmenden Verunreinigungen zur Wasserzutrittsöffnung 47 verhindern.In the case of flat roofs 3 with permanent overflow of water up to the height h 3 (cf. FIG. 18), the outlet-side opening of the vortex throttle 55 is arranged above the knot h 3 . The vertically arranged vortex throttle 55 can have a configuration corresponding to the vortex throttle 45 shown in FIG. 4, the water inlet opening 47 being located below the knot h 3 . Of course, a vortex throttle 17, as shown in FIGS. 2, 7, 8 and 9, could also be used if one of the two inflow openings, namely the one at the top, is closed. The emergency overflow line 35 is arranged in the vertical extension of the pipeline 11 and can have a hood or diving bell 40, as is described and illustrated in FIG. 14, in order to prevent the entry of floating contaminants. A baffle 67 can also be arranged around the inlet 47 of the vortex throttle 55. The baffle 67 consists of vertically formed sheets or plastic plates which prevent the entry of floating contaminants to the water inlet opening 47.

Bei geringen Regenmengen kann das sich auf dem Dach 3 sammelnde Wasser durch die eingetauchte Zutrittsöffnung 47 ungedrosselt in die Rohrleitung 11 und von dort zur Kanalisation gelangen. Steigt jedoch das Niveau über die Kote h3 bis auf die Kote h4, die über dem Scheitel der auslaufseitigen Offnung der Wirbeldrossel 55 liegt, bilden sich in der Wirbeldrossel 55 Wirbel, welche den Durchtritt von Wasser auf das durch die Ausbildung der Wirbeldrossel 55 vorgegebene Mass beschränken. Es erfolgt folglich ein Anstieg des Wasserspiegels bei konstantem gedrosseltem Ablauf bis auf die Höhe hmax. Steigt der Wasserspiegel durch intensive Regenfälle weiter an, so kann durch die Notüberlaufleitung 35 ungedrosselt Wasser der Rohrleitung 11 zugeführt werden. Alternativ ist es auch möglich, das Notüberlaufwasser einer hier nicht dargestellten Leitung zuzuführen. welche direkt. unter Umgehung einer Kläranlage, in ein Gewässer mündet.
In der Ausgestaltung der Erfindung nach Figur 19, welche nur schematisch die Anordnung der einzelnen Elemente darstellt, liegt die Wirbeldrossel 55 bzw, deren auslaufseitige Öffnung 47 auf der Kote h3, welche der vorgesehenen Höhe des Dauerstaus entspricht. Bei einem weiteren Anstieg des Wasserspiegels kann, solange dieser die Kote h4 nicht übersteigt. das Wasser ungedrosselt der Rohrleitung 11 zutliessen. Wird die Kote h4 überschritten, so setzt die Wirkung der Wirbeldrossel 55 ein. d.h. das von nun an der Wirbeldrossel 55 zufliessende Wasser wird in der durch die Ausbildung der Wirbeldrossel 55 bestimmten Menge, die nicht überschritten werden kann, abgeführt. Bei einem weiteren Anstieg über die Kote hmax kann das Wasser über die Notüberlaufleitung abfliessen. Das in den Wasserspiegel hmax eingetauchte vordere Ende 59 der Notüberlaufleitung 35 verhindert wiederum, dass aufschwimmende Verunreinigungen in die Rohrleitung 11 gelangen und diese verstopfen können.
Wird die Wirbeldrossel 55 in der Ausgestaltung der Erfindung gemäss Figur 19 auf dem Niveau des Daches 3 angeordnet, so entspricht deren Funktionsweise derjenigen in Figur 1.With small amounts of rain, the water collecting on the roof 3 can flow unrestricted through the immersed access opening 47 into the pipeline 11 and from there to the sewage system. However, if the level rises above the knot h 3 to the knot h 4 , which lies above the apex of the opening on the outlet side of the vortex throttle 55, vortexes 55 form in the vortex throttle, which the passage of water to the one predetermined by the formation of the vortex throttle 55 Limit dimensions. There is consequently an increase in the water level with a constant throttled discharge up to the height h max . If the water level continues to rise due to intensive rainfall, water can be supplied to the pipeline 11 unthrottled through the emergency overflow line 35. Alternatively, it is also possible to supply the emergency overflow water to a line (not shown here). which directly. bypassing a sewage treatment plant, flows into a body of water.
In the embodiment of the invention according to FIG. 19, which represents the arrangement of the individual elements only schematically, the vortex throttle 55 or its outlet-side opening 47 lies on the hull h 3 , which corresponds to the intended height of the continuous congestion. With a further rise in the water level, as long as it does not exceed the level h 4 . allow the water to flow unrestricted to the pipeline 11. If the hote h 4 is exceeded, the effect of the vortex throttle 55 begins. ie the water flowing from now on to the vortex throttle 55 is discharged in the amount determined by the formation of the vortex throttle 55, which cannot be exceeded. With a further climb over the Kote h max , the water can flow out via the emergency overflow line. The front end 59 of the emergency overflow line 35, which is immersed in the water level h max , in turn prevents floating impurities from entering the pipeline 11 and blocking it.
If the vortex throttle 55 in the embodiment of the invention according to FIG. 19 is arranged on the level of the roof 3, its mode of operation corresponds to that in FIG. 1.

Claims (12)

  1. A method for delayed run-off of rainwater from roofs or surfaces with a retention capacity for a sporadic or permanent retention, through a pipeline into the sewer system of a wastewater facility, where the pipeline has a cross section that essentially permits the maximum amount of rainfall to be drained off, where the amount of run-off is limited to a predetermined adjustable maximum before reaching the maximum retention capacity.
  2. A method according to claim 1, characterized in that all the rainwater is passed through a throttle element (17, 45, 55, 77) before entering a pipeline (11), and the amount of water run-off per unit of time does not exceed an amount which is determined by the dimensioning of the throttle elements (17, 45, 55, 77).
  3. A device for delayed run-off of rainwater from roofs or surfaces with a retention capacity for sporadic or permanent retention, where a throttle element (17, 45, 55, 77) is arranged on the surface or roof inlet of a pipeline (11) connected to a sewage treatment facility, and its flowthrough capacity is adapted to the holding capacity of the sewage treatment facility, characterized in that the pipeline (11) has a cross section that is dimensioned to drain off the maximum amount of rainfall on reaching the retention capacity.
  4. A device according to claim 3, characterized in that a vortex throttle with a central outlet and a radial or tangential inlet is used as the throttle element (17, 45, 55, 77).
  5. A device according to claim 3, characterized in that the throttle element (17) consists of two essentially parallel plates (19, 21) which are connected by curved metal sheets (23, 25; 24) arranged symmetrically, where a gap or an orifice (33) of the width (a) is provided between the ends of the metal sheets (23, 25; 24), and the curved metal sheets (23, 25; 24) have arc-shaped sections (25, 27) or bent sections (26).
  6. A device according to claim 5, characterized in that a pipe part (16) leading to the pipeline (11) is mounted at least in the lower plate (21).
  7. A device according to claim 6, characterized in that a pipe connection (35) for introducing the amount of water exceeding the maximum retention level hmax is inserted into the throttle element (17, 45) in the upper plate (19).
  8. A device according to one of claims 5 to 7, characterized in that the upper plate (19) is designed so it is removable and/or an aperture (12) or an adapter (54) is mounted on or inserted into the orifice (22) on the outlet side over the pipeline (11).
  9. A device according to one of claims 5 to 8, characterized in that the width of the inlet-side gap (33) on the vortex throttle (17, 45, 55) can be varied by a slide valve (34).
  10. A device according to one of claims 7 to 9, characterized in that a plunger (40) or a pipe bend (38) is arranged on the end of the pipe connection (35) for retention of floating impurities.
  11. A device according to one of claims 3 to 10, characterized in that the outlet-side orifice of the throttle element (55) is arranged on the pipeline (11) which is extended above the roof at a distance from the surface of the roof (3) on the relative elevation (h3) of the permanent retention.
  12. A device according to claim 11, characterized in that the throttle element (55) is attached horizontally or vertically to the pipeline (11) projecting above the roof (3).
EP93912535A 1992-06-30 1993-06-29 Method and device for delaying the run-off of flash-storm water or ordinary rainwater from roofs and other surfaces with a water-retention capability Expired - Lifetime EP0601148B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH2068/92 1992-06-19
CH206892 1992-06-30
PCT/CH1993/000165 WO1994000653A1 (en) 1992-06-30 1993-06-29 Method and device for delaying the run-off of flash-storm water or ordinary rainwater from roofs and other surfaces with a water-retention capability

Publications (2)

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EP0601148A1 EP0601148A1 (en) 1994-06-15
EP0601148B1 true EP0601148B1 (en) 1998-02-11

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EP93912535A Expired - Lifetime EP0601148B1 (en) 1992-06-30 1993-06-29 Method and device for delaying the run-off of flash-storm water or ordinary rainwater from roofs and other surfaces with a water-retention capability

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Country Link
US (2) US5524393A (en)
EP (1) EP0601148B1 (en)
JP (1) JPH06510097A (en)
AT (1) ATE163210T1 (en)
DE (2) DE9308085U1 (en)
WO (1) WO1994000653A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101796309B (en) * 2007-07-26 2015-01-07 海沃国际有限公司 A vortex flow control device

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9312728U1 (en) * 1993-08-25 1993-12-16 Glaser, Horst, 95707 Thiersheim Rainwater collection shaft with overflow infiltration in various sizes, made of precast concrete
US5836116A (en) * 1994-08-10 1998-11-17 Widmann; Roland Tank system
DE19545047C2 (en) * 1995-12-02 2003-12-18 Guethler Renate Device for activating existing storage spaces and for delaying the outflow of waste water within waste water systems
GB2334791B (en) 1998-02-27 2002-07-17 Hydro Int Plc Vortex valves
DE19852561C1 (en) * 1998-11-13 2000-07-06 Harzmann Optima Marketing Und Drainage system for roof areas
US6594966B2 (en) 2001-11-06 2003-07-22 Craig J. Froeter Bi-functional roof drain and method of retrofitting a roof drainage system therewith
DE10201347C5 (en) * 2002-01-16 2017-06-01 Dallmer Gmbh & Co. Kg Inlet device for the discharge of rainwater from a roof
US7614198B1 (en) 2004-04-29 2009-11-10 Piskula James S Method for providing existing building flat roof with drain restrictors
DE102004059286A1 (en) * 2004-12-09 2006-06-14 Ppm Industrielackierungen Gmbh Flat roof for e.g. carport, has closed rain water tank as supporting part, designed as rain water collecting reservoir and coated with photoresist and thermal insulation materials, where tank surface slopes towards inlet opening
DE102005012439B4 (en) * 2005-03-11 2010-09-09 Vahlbrauk, Wolfgang, Dipl.-Ing. water draining
DE102005012438B4 (en) * 2005-03-11 2010-09-09 Vahlbrauk, Wolfgang, Dipl.-Ing. water draining
US8075668B2 (en) 2005-03-29 2011-12-13 Dresser-Rand Company Drainage system for compressor separators
US20070122234A1 (en) * 2005-11-29 2007-05-31 Smet-Weiss Judith A Attachment plate for dewatering device
US7465123B2 (en) * 2006-01-06 2008-12-16 Bergman Carla E Water circulation apparatus to reduce evaporation
US8434998B2 (en) 2006-09-19 2013-05-07 Dresser-Rand Company Rotary separator drum seal
WO2008036394A2 (en) 2006-09-21 2008-03-27 Dresser-Rand Company Separator drum and compressor impeller assembly
EP2066983B1 (en) 2006-09-25 2013-12-11 Dresser-Rand Company Compressor mounting system
BRPI0717571B1 (en) 2006-09-25 2018-11-27 Dresser Rand Co connecting spool for connecting a compressor housing to a drive housing of an industrial compression system
WO2008039734A2 (en) 2006-09-25 2008-04-03 Dresser-Rand Company Coupling guard system
BRPI0718451A2 (en) 2006-09-25 2013-11-26 Dresser Rand Co FLUID DEFLECTOR FOR FLUID SEPARATOR DEVICES
EP2066949B1 (en) 2006-09-25 2013-08-28 Dresser-Rand Company Axially moveable spool connector
EP2066422B1 (en) 2006-09-26 2012-06-27 Dresser-Rand Company Improved static fluid separator device
AU2013201813B2 (en) * 2007-07-26 2015-08-13 Hydro International Plc A vortex flow control device
WO2009111616A2 (en) 2008-03-05 2009-09-11 Dresser-Rand Company Compressor assembly including separator and ejector pump
US7922218B2 (en) 2008-06-25 2011-04-12 Dresser-Rand Company Shear ring casing coupler device
US8079805B2 (en) 2008-06-25 2011-12-20 Dresser-Rand Company Rotary separator and shaft coupler for compressors
US8062400B2 (en) 2008-06-25 2011-11-22 Dresser-Rand Company Dual body drum for rotary separators
FR2941477B1 (en) * 2009-01-28 2011-02-25 Sarl Le Prieure DEVICE AND METHOD FOR STORING WATER WITH LIMITED FLOW RATE ON A SLOPED ROOF
US8087901B2 (en) 2009-03-20 2012-01-03 Dresser-Rand Company Fluid channeling device for back-to-back compressors
US8210804B2 (en) 2009-03-20 2012-07-03 Dresser-Rand Company Slidable cover for casing access port
US8061972B2 (en) 2009-03-24 2011-11-22 Dresser-Rand Company High pressure casing access cover
EP2478229B1 (en) 2009-09-15 2020-02-26 Dresser-Rand Company Improved density-based compact separator
BR112012020085B1 (en) 2010-02-10 2020-12-01 Dresser-Rand Company collection device for a separator and separation method
US8673159B2 (en) 2010-07-15 2014-03-18 Dresser-Rand Company Enhanced in-line rotary separator
US8663483B2 (en) 2010-07-15 2014-03-04 Dresser-Rand Company Radial vane pack for rotary separators
US8657935B2 (en) 2010-07-20 2014-02-25 Dresser-Rand Company Combination of expansion and cooling to enhance separation
WO2012012143A2 (en) 2010-07-21 2012-01-26 Dresser-Rand Company Multiple modular in-line rotary separator bundle
WO2012033632A1 (en) 2010-09-09 2012-03-15 Dresser-Rand Company Flush-enabled controlled flow drain
WO2013109235A2 (en) 2010-12-30 2013-07-25 Dresser-Rand Company Method for on-line detection of resistance-to-ground faults in active magnetic bearing systems
US8994237B2 (en) 2010-12-30 2015-03-31 Dresser-Rand Company Method for on-line detection of liquid and potential for the occurrence of resistance to ground faults in active magnetic bearing systems
US9551349B2 (en) 2011-04-08 2017-01-24 Dresser-Rand Company Circulating dielectric oil cooling system for canned bearings and canned electronics
US8876389B2 (en) 2011-05-27 2014-11-04 Dresser-Rand Company Segmented coast-down bearing for magnetic bearing systems
US8851756B2 (en) 2011-06-29 2014-10-07 Dresser-Rand Company Whirl inhibiting coast-down bearing for magnetic bearing systems
EP2956597A1 (en) 2013-02-15 2015-12-23 Mosbaek A/S A roof drain
US20150218785A1 (en) * 2013-12-20 2015-08-06 Rainbank, Inc. Automated roof runoff management system
US9897121B1 (en) * 2016-09-28 2018-02-20 Atieva, Inc. Automotive air intake utilizing a vortex generating airflow system
JP6920525B2 (en) * 2018-01-09 2021-08-18 積水化学工業株式会社 Siphon rain gutter system and siphon drain member
US12018489B2 (en) 2020-04-14 2024-06-25 Zurn Water, Llc Domed roof drain strainer assembly
US11043103B1 (en) 2020-09-02 2021-06-22 Zurn Industries, Llc Connected roof drain

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1469303A (en) * 1922-11-14 1923-10-02 Hess Arthur Floor drain
US2283365A (en) * 1940-05-31 1942-05-19 John C Kupferle Foundry Compan Water level control roof drain
US2572208A (en) * 1947-01-08 1951-10-23 Woodruff & Edwards Inc Water runoff control construction
US2618356A (en) * 1947-08-01 1952-11-18 Josam Mfg Company Water dam for flooding roofs or the like
NL88667C (en) * 1953-03-21
DE1022557B (en) * 1955-05-20 1958-01-16 Forschungsgesellschaft Der Wab Filter nozzle
US3220517A (en) * 1962-10-30 1965-11-30 Best available copy
US3357561A (en) * 1965-10-15 1967-12-12 Zurn Ind Inc Roof drain
US3469698A (en) * 1967-04-05 1969-09-30 Josam Mfg Co Controlled flow drain
DE1806527C3 (en) * 1968-11-02 1978-12-21 Josam Manufacturing Co., Michigan City, Ind. (V.St.A.) Flat roof drain
US3529723A (en) * 1968-11-07 1970-09-22 Charles L Hagedorn Roof drain
US4034428A (en) * 1975-01-27 1977-07-12 Jacuzzi Research, Inc. Adjustable drain control assembly
US4400272A (en) * 1981-06-08 1983-08-23 Logsdon Duane D Drain grate with adjustable weirs
SE451610B (en) * 1983-04-14 1987-10-19 Kontekla Oy SKREPSIL

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101796309B (en) * 2007-07-26 2015-01-07 海沃国际有限公司 A vortex flow control device

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US5800092A (en) 1998-09-01
ATE163210T1 (en) 1998-02-15
JPH06510097A (en) 1994-11-10
EP0601148A1 (en) 1994-06-15
DE9308085U1 (en) 1993-08-05
DE59308136D1 (en) 1998-03-19
US5524393A (en) 1996-06-11
WO1994000653A1 (en) 1994-01-06

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