EP2369088B1 - Device for removing water from roofs - Google Patents

Device for removing water from roofs Download PDF

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Publication number
EP2369088B1
EP2369088B1 EP10405062.0A EP10405062A EP2369088B1 EP 2369088 B1 EP2369088 B1 EP 2369088B1 EP 10405062 A EP10405062 A EP 10405062A EP 2369088 B1 EP2369088 B1 EP 2369088B1
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EP
European Patent Office
Prior art keywords
noise
reducing element
cover
air
inlet
Prior art date
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.)
Active
Application number
EP10405062.0A
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German (de)
French (fr)
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EP2369088A1 (en
Inventor
Abdullah Oengören
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Geberit International AG
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Geberit International AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Geberit International AG filed Critical Geberit International AG
Priority to DK10405062.0T priority Critical patent/DK2369088T3/en
Priority to PL10405062T priority patent/PL2369088T3/en
Priority to EP10405062.0A priority patent/EP2369088B1/en
Priority to AU2011200482A priority patent/AU2011200482B2/en
Priority to KR1020110015493A priority patent/KR20110107738A/en
Priority to CN2011100711917A priority patent/CN102199942A/en
Priority to CN201610983383.8A priority patent/CN106567506A/en
Publication of EP2369088A1 publication Critical patent/EP2369088A1/en
Application granted granted Critical
Publication of EP2369088B1 publication Critical patent/EP2369088B1/en
Priority to KR1020180002975A priority patent/KR20180005732A/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/041—Accessories therefor
    • 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 invention relates to a device for roof drainage according to the preamble of claim 1.
  • the EP-A-0 928 860 discloses a device for roof drainage according to the preamble of claim 1 with a roof drain, which has a pipe which is intended to effect a pressure equalization by aeration. A closed flow is not provided in this roof drain.
  • the DE-A-42 12 205 discloses a swimming pool drainage system.
  • the US 2,807,368 discloses a drain gutter.
  • the EP-A-1 607 542 discloses a roof water inlet in which the drainage capacity is regulated by means of a float valve. As a result, lower drainage noise and a lower mechanical load should be possible.
  • the invention has for its object to provide a device of the type mentioned, in which the noise can be significantly reduced, at least in part load and which can be maintained easily.
  • the problem is solved according to claim 1.
  • the at least one noise-reducing element is designed so that it introduces air from a predetermined load to a favorable location in the flow and thereby an intake of air through said annular passage is reduced.
  • an air suction through the annular passage can be substantially prevented or at least reduced even in partial load. It has also been shown that with the at least one noise-reducing element vortex-like flow conditions can be significantly reduced when entering the drainage pipe at partial load as well as at full load. This leads to a substantial stabilization of the water flow.
  • the at least one noise reducing element can be realized very simply and inexpensively by a tube having an upper air intake opening and a lower air outlet opening.
  • the air intake opening is arranged in or above the cover.
  • the air outlet opening is preferably located in the drain pipe.
  • the at least one noise-reducing element can in particular have a rod-shaped design and a comparatively small outer diameter, so that the cross-section in the drain pipe is not significantly reduced.
  • the at least one noise-reducing element is arranged on the cover and in particular fixed. This element can be lifted in this case in a simple manner with the cover from the inlet and thus cleaned in a simple manner. Even a simple assembly and revision is guaranteed.
  • the air outlet opening and / or the air intake opening is / are formed in a sieve-like manner. This allows the air intake to be optimally dosed.
  • the air can be finely distributed as small bubbles are introduced.
  • a sieve-shaped air outlet opening allows a particularly high noise reduction. This makes it possible to release very small air bubbles in the water and thus to prevent a turbulent two-phase flow particularly effective.
  • further openings in the at least one noise-reducing element are also conceivable. These openings can be round or elongated.
  • an embodiment is conceivable in which two or more than two such noise-reducing elements are provided. Preferably, however, only such a noise-reducing element is arranged substantially centrally.
  • the element is preferably fixedly connected to the cover. It is also conceivable, however, a detachable attachment or a movable attachment.
  • the cover is preferably closed outside the at least one noise-reducing element.
  • air can only enter the inlet through the at least one noise-reducing element and through the annular passage. Due to the above-mentioned effect, however, the air inlet largely takes place through the at least one noise-reducing element.
  • the inlet is designed according to a further development as a pot in which the water to be discharged can collect. It is also conceivable, however, an enema without such Pot. The enema could, for example, according to the WO 83/03114 be educated.
  • Fig. 1 shown device 1 has an inlet 3, which is designed as an inlet pot and which is installed on a roof only here indicated 14, in order to dissipate water 2 from a roof top 15.
  • the inlet 3 has a circumferential collar 8, which extends radially outwardly substantially in the plane of the roof top 15.
  • Above the inlet 3, an example disc-shaped and a peripheral edge 42 having cover 10 is arranged, which extends at a distance from the collar 8 substantially horizontally.
  • the cover 10 is fixed with means not shown here, so that the distance between the collar 8 and the edge 42 of the cover 10 is fixed.
  • Over the cover 10 may be arranged a not shown here usual leaf screen. This prevents an annular passage 9 between the collar 8 and the cover 10 is clogged and, for example, leaves can get into the inlet 3.
  • the inlet 3 forms under the cover 10 has a trough-shaped interior 13, in which flows in rainfall in the direction of arrows 37 water.
  • This water enters the drain pipe 6, which extends down to a bottom 7 of the inlet 3.
  • This drain pipe 6 finally leads to an outlet opening, not shown here, through which the water can flow.
  • the discharged water 2 thus passes first through an upper opening 4 in the trough-shaped interior 13 and from there through a narrower and lower opening 5 in the drain pipe 6.
  • full filling in which a suction effect is achieved in the direction of flow in the inlet 3, which increases the power.
  • An uninterrupted continuous suction is achieved at about 70% of maximum power.
  • In less rainfall is according to Fig. 2 sucked air through the annular passage 9 except water 2.
  • the cover 10' is formed according to the prior art.
  • the inventive device 1 according to Fig. 1 has a noise-reducing element 16 which is fixed to the cover 10 and which has at an upper end an air intake opening 26 which leads into a channel 27 having an air outlet opening 39 at a lower end 16b.
  • the channel 27 thus extends over the entire length of the element 16.
  • a lower end 16b and thus the air outlet opening 39 are located in the drainage pipe 6.
  • the air intake opening 26 is located as seen on an upper side 11 of the cover 10.
  • the air intake opening 26 may, however be arranged in the plane of the top 11. It is essential that air can enter the channel 27 from the outside through the air intake opening 26.
  • the element 16 has the effect that in a drainage of the roof 14 according to Fig. 1 Air is sucked through the opening 26 and flows out of it at the air outlet opening 39 in the form of air bubbles 36 into the water of the drainage pipe 6. As a result, the entry of air at the annular passage 9 is substantially reduced. Thus, essentially only water flows through the annular passage 9 into the trough-shaped interior space 13. This has the effect of avoiding a highly turbulent and chaotic two-phase flow 38 with the corresponding negative effects even at partial load and thus the flow of the water in the drainage pipe 6 much more stable and quiet. The flow in the trough-shaped interior 13 is characterized significantly less turbulent and thus more stable.
  • the thus stabilized Flow of water generates correspondingly less vibration at the inlet 3 and the drain pipe 6, which also affects the noise reduction.
  • the element 16 preferably projects with its lower end 16 b into the drainage pipe 6.
  • the length located in the drainage pipe 6 is preferably at least 10%, preferably at least 20% of the total length of the element 16.
  • the noise reducing element 16 can be realized as a simple tube.
  • a corresponding noise reducing element 16 is shown in FIG Fig. 3a shown.
  • this has a through hole 40 into which the noise reducing element 16 is inserted and fixed.
  • the Fig. 3b shows a variant of the noise-reducing element 17, in which also a plurality of openings 28 are provided laterally through which air can also escape.
  • corresponding openings 29 are arranged in a lower region of the noise-reducing element 18.
  • Through the openings 28 and 29 can according Fig. 1 comparatively small air bubbles 36 are discharged into the flowing away water. The desired suction is not affected.
  • the Fig. 4a shows a noise-reducing element 19 which has a plurality of small sieve-like openings 30 at a lower end 32 instead of the one opening 39. Through these openings 30, the air flowing through the noise-reducing element 19 can be discharged in a particularly targeted manner and with small air bubbles 36. Measurements have shown that this increases the frequency of the sound and thus causes the noise in a higher frequency range. Such noises are less disturbing than the known gurgling noises which have a comparatively low frequency. On the one hand, the noise is thus reduced and on the other hand, the frequency is increased.
  • the lower end 32 may be formed, for example, hemispherical.
  • a noise-reducing element 20 is provided, which has a conically downwardly constricting lower end 33 which has a sieve-like permeability and a plurality of comparatively small openings 31.
  • FIGS. 5a to 5e show noise reducing elements 21 to 25, which are each additionally provided at the upper end with openings 41, which allow the intake of air.
  • the upper end is therefore also formed here like a sieve.
  • the noise-reducing elements 24 and 25 also laterally further openings 34 and 35 are provided for the air outlet.
  • the upper ends and the lower ends may each be formed, for example, semicircular or tapered.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Sanitary Device For Flush Toilet (AREA)
  • Building Environments (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zur Dachentwässerung nach dem Oberbegriff des Anspruchs 1.The invention relates to a device for roof drainage according to the preamble of claim 1.

Solche Vorrichtungen sind seit langem bekannt und dienen insbesondere zur Entwässerung von Flachdächern und gefällschwachen Dächern. Die Abdeckung, die einen ringförmigen Durchlass bildet, ermöglicht eine sogenannte geschlossene Strömung. Diese Strömung bewirkt eine Saugwirkung und damit die gewünschte höhere Leistung. Die Saugwirkung bedingt eine Vollfüllung des Topfes und des Abflussrohres. Eine solche Vollfüllung ist jedoch ein Sonderfall, der bei sehr starkem Regenfall vorkommt. Zum Stand der Technik wird beispielsweise auf die FI 58 193 , US 4,683,685 , WO 95/15423 und die EP 1 203 851 verwiesen.Such devices have long been known and are used in particular for drainage of flat roofs and weak fuzzy roofs. The cover, which forms an annular passage, allows a so-called closed flow. This flow causes a suction and thus the desired higher performance. The suction causes a full filling of the pot and the drain pipe. However, such full filling is a special case that occurs in very heavy rainfall. The state of the art, for example, on the FI 58 193 . US 4,683,685 . WO 95/15423 and the EP 1 203 851 directed.

Die EP-A-0 928 860 offenbart eine Vorrichtung zur Dachentwässerung gemäß dem Oberbegriff des Anspruchs 1 mit einem Dachablauf, der ein Rohr aufweist, das durch eine Belüftung einen Druckausgleich bewirken soll. Eine geschlossene Strömung ist bei diesem Dachablauf nicht vorgesehen. Die DE-A-42 12 205 offenbart ein Schwimmbad-AblaufSystem. Die US 2,807,368 offenbart einen Ablauf für eine Dachrinne.The EP-A-0 928 860 discloses a device for roof drainage according to the preamble of claim 1 with a roof drain, which has a pipe which is intended to effect a pressure equalization by aeration. A closed flow is not provided in this roof drain. The DE-A-42 12 205 discloses a swimming pool drainage system. The US 2,807,368 discloses a drain gutter.

Bei mittlerem Regenfall und somit im Teillastfall werden durch den genannten ringförmigen Durchlass grosse Luftmengen in die Wasserströmung gezogen. Diese Luftmengen werden in das Ablaufrohr gesogen. Sie bilden vergleichsweise grosse Luftblasen, die sich inhomogen mit dem Wasser mischen und eine hohe turbulente sowie chaotische Zweiphasenströmung verursachen. Eine solche Strömung ist eine sehr starke Störungsquelle im ganzen System. Sie verschlechtert nicht nur die Leistung des Systems, sondern generiert auch sehr hohe Geräusche. Da wie erwähnt ein Teilfiillungszustand wesentlich häufiger ist als ein Vollfüllungszustand, ist die Geräuschbildung bei solchen Vorrichtungen ein wesentlicher Nachteil.In moderate rainfall and thus in partial load case large amounts of air are drawn through the said annular passage in the water flow. These amounts of air are sucked into the drainpipe. They form relatively large air bubbles, which mix inhomogeneously with the water and cause a high turbulent and chaotic two-phase flow. Such a flow is a very strong source of disturbances throughout the system. It not only degrades the performance of the system, but also generates very high noises. Since, as mentioned, a Teilfiillungszustand is much more common than a full filling state, the noise in such devices is a significant disadvantage.

Zur Geräuschminderung wird in der EP 1 160 390 vorgeschlagen, die Abdeckung an ihrer Unterseite mit einem Stutzen zu versehen, der eine Querschnittserweiterung im Einlaufbereich des Einlauftrichters verhindern soll. Dadurch soll es möglich sein, das Ansaugen von Luft zu reduzieren und gurgelnde Geräusche beim Abfliessen des Wassers zu verringern. Zudem werden radial verlaufende Wasserleitelemente vorgeschlagen, die eine Wirbelbildung vermeiden und ein möglichst schnelles Ablaufen des Wassers gewährleisten sollen.To reduce noise is in the EP 1 160 390 proposed to provide the cover on its underside with a nozzle which is intended to prevent a cross-sectional widening in the inlet region of the inlet funnel. This should make it possible to reduce the intake of air and reduce gurgling noises when draining the water. In addition, radially extending water guide elements are proposed which avoid vortex formation and ensure the fastest possible drainage of the water.

Die EP-A-1 607 542 offenbart einen Dachwassereinlauf, bei welchem die Ablaufleistung mittels eines Schwimmerventils reguliert wird. Dadurch sollen geringere Ablaufgeräusche und eine geringere mechanische Belastung möglich sein.The EP-A-1 607 542 discloses a roof water inlet in which the drainage capacity is regulated by means of a float valve. As a result, lower drainage noise and a lower mechanical load should be possible.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der genannten Art zu schaffen, bei welcher die Geräuschbildung zumindest auch im Teillastfall wesentlich vermindert werden kann und welche einfacher gewartet werden kann. Die Aufgabe ist gemäss Anspruch 1 gelöst.The invention has for its object to provide a device of the type mentioned, in which the noise can be significantly reduced, at least in part load and which can be maintained easily. The problem is solved according to claim 1.

Bei der gattungsgemässen Vorrichtung ist das wenigstens eine geräuschmindernde Element so ausgebildet, dass es ab einer vorbestimmten Last zu einem günstigen Ort in die Strömung Luft einleitet und dadurch ein Ansaugen von Luft durch den genannten ringförmigen Durchlass vermindert wird. Durch das Einleiten von Luft durch das wenigstens eine geräuschmindernde Element kann ein Luftansaugen durch den ringförmigen Durchlass auch im Teillastfall im Wesentlichen verhindert oder zumindest vermindert werden. Es hat sich zudem gezeigt, dass mit dem wenigstens einen geräuschmindernden Element wirbelähnliche Strömungsverhältnisse beim Eintritt in das Abflussrohr bei Teillast als auch bei Volllast wesentlich vermindert werden können. Dies führt zu einer wesentlichen Stabilisierung der Wasserströmung.In the generic device, the at least one noise-reducing element is designed so that it introduces air from a predetermined load to a favorable location in the flow and thereby an intake of air through said annular passage is reduced. By introducing air through the at least one noise-reducing element, an air suction through the annular passage can be substantially prevented or at least reduced even in partial load. It has also been shown that with the at least one noise-reducing element vortex-like flow conditions can be significantly reduced when entering the drainage pipe at partial load as well as at full load. This leads to a substantial stabilization of the water flow.

Das wenigstens eine geräuschmindernde Element kann sehr einfach und kostengünstig durch ein Rohr realisiert werden, das eine obere Luftansaugöffnung und eine untere Luftauslassöffnung aufweist. Die Luftansaugöffnung ist in oder über der Abdeckung angeordnet. Die Luftauslassöffnung befindet sich vorzugsweise im Abflussrohr. Das wenigstens eine geräuschmindernde Element kann insbesondere stabförmig ausgebildet und einen vergleichsweise kleinen Aussendurchmesser aufweisen, so dass der Querschnitt im Abflussrohr nicht wesentlich verkleinert wird.The at least one noise reducing element can be realized very simply and inexpensively by a tube having an upper air intake opening and a lower air outlet opening. The air intake opening is arranged in or above the cover. The air outlet opening is preferably located in the drain pipe. The at least one noise-reducing element can in particular have a rod-shaped design and a comparatively small outer diameter, so that the cross-section in the drain pipe is not significantly reduced.

Nach einer Weiterbildung der Erfindung ist vorgesehen, dass das wenigstens eine geräuschmindernde Element an der Abdeckung angeordnet und insbesondere befestigt ist. Dieses Element kann in diesem Fall in einfacher Weise mit der Abdeckung vom Einlauf abgehoben und damit in einfacher Weise gereinigt werden. Auch eine einfache Montage und Revision ist dadurch gewährleistet.According to a development of the invention it is provided that the at least one noise-reducing element is arranged on the cover and in particular fixed. This element can be lifted in this case in a simple manner with the cover from the inlet and thus cleaned in a simple manner. Even a simple assembly and revision is guaranteed.

Nach einer Weiterbildung der Erfindung ist vorgesehen, dass die Luftauslassöffnung und/oder die Luftansaugöffnung siebförmig ausgebildet ist bzw. sind. Dadurch kann der Lufteinlass optimal dosiert werden. Die Luft kann dadurch fein verteilt als kleine Blasen eingeleitet werden. Es hat sich gezeigt, dass eine siebförmige Luftauslassöffnung eine besonders hohe Geräuschminderung ermöglicht. Dadurch ist es möglich, besonders kleine Luftblasen in das Wasser abzugeben und dadurch eine turbulente Zweiphasenströmung besonders wirksam zu verhindern. Zusätzlich zur siebförmigen Luftauslassöffnung und/oder der siebförmigen Luftansaugöffnung, sind auch weitere Öffnungen im wenigstens einen geräuschmindernden Element denkbar. Diese Öffnungen können rund oder auch länglich sein.According to a development of the invention, it is provided that the air outlet opening and / or the air intake opening is / are formed in a sieve-like manner. This allows the air intake to be optimally dosed. The air can be finely distributed as small bubbles are introduced. It has been shown that a sieve-shaped air outlet opening allows a particularly high noise reduction. This makes it possible to release very small air bubbles in the water and thus to prevent a turbulent two-phase flow particularly effective. In addition to the sieve-shaped air outlet opening and / or the sieve-shaped air intake opening, further openings in the at least one noise-reducing element are also conceivable. These openings can be round or elongated.

Grundsätzlich ist auch eine Ausführung denkbar, bei welcher zwei oder mehr als zwei solche geräuschmindernde Elemente vorgesehen sind. Vorzugsweise ist jedoch lediglich ein solches geräuschminderndes Element im Wesentlichen mittig angeordnet. Das Element ist vorzugsweise fest mit der Abdeckung verbunden. Denkbar ist aber auch eine lösbare Befestigung bzw. eine bewegliche Befestigung.In principle, an embodiment is conceivable in which two or more than two such noise-reducing elements are provided. Preferably, however, only such a noise-reducing element is arranged substantially centrally. The element is preferably fixedly connected to the cover. It is also conceivable, however, a detachable attachment or a movable attachment.

Die Abdeckung ist ausserhalb des wenigstens einen geräuschmindernden Elementes vorzugsweise geschlossen. Luft kann dadurch grundsätzlich lediglich durch das wenigstens eine geräuschmindernde Element und durch den ringförmigen Durchlass in den Einlauf eintreten. Aufgrund der oben erwähnten Wirkung erfolgt der Lufteintritt aber weitgehend durch das wenigstens eine geräuschmindernde Element.The cover is preferably closed outside the at least one noise-reducing element. In principle, air can only enter the inlet through the at least one noise-reducing element and through the annular passage. Due to the above-mentioned effect, however, the air inlet largely takes place through the at least one noise-reducing element.

Der Einlauf ist gemäss einer Weiterbildung als Topf ausgebildet, in dem sich das abzuführende Wasser sammeln kann. Denkbar ist aber auch ein Einlauf ohne einen solchen Topf. Der Einlauf könnte beispielsweise gemäss der WO 83/03114 ausgebildet sein.The inlet is designed according to a further development as a pot in which the water to be discharged can collect. It is also conceivable, however, an enema without such Pot. The enema could, for example, according to the WO 83/03114 be educated.

Weitere vorteilhafte Merkmale ergeben sich aus den abhängigen Patentansprüchen, der nachfolgenden Beschreibung sowie der Zeichnung.Further advantageous features emerge from the dependent claims, the following description and the drawings.

Ausführungsbeispiele der Erfindung werden nachfolgend anhand der Zeichnung näher erläutert. Es zeigen:

  • Fig. 1 ein Vertikalschnitt durch eine in einem Dach eingebaute Vorrichtung,
  • Fig. 2 ein Schnitt entsprechend Fig. 1, wobei jedoch zur Erläuterung der Wirkung des wenigstens einen geräuschmindernden Elementes dieses weggelassen ist,
  • Fig. 3a bis 3c, 4a, 4b und 5a bis 5e Ansichten verschiedener Ausführungen des wenigstens einen geräuschmindernden Elementes.
Embodiments of the invention will be explained in more detail with reference to the drawing. Show it:
  • Fig. 1 a vertical section through a device installed in a roof,
  • Fig. 2 a cut accordingly Fig. 1 However, to explain the effect of the at least one noise-reducing element, this is omitted,
  • Fig. 3a to 3c, 4a . 4b and 5a to 5e Views of various embodiments of the at least one noise-reducing element.

Die in Fig. 1 gezeigte Vorrichtung 1 besitzt einen Einlauf 3, der als Einlauftopf ausgebildet und der auf einem hier lediglich angedeuteten Dach 14 eingebaut ist, um von einer Dachoberseite 15 Wasser 2 abzuführen. Der Einlauf 3 besitzt einen umlaufenden Kragen 8, der sich im Wesentlichen in der Ebene der Dachoberseite 15 radial nach aussen erstreckt. Über dem Einlauf 3 ist eine beispielsweise scheibenförmige und einen umlaufenden Rand 42 aufweisende Abdeckung 10 angeordnet, die im Abstand zum Kragen 8 sich im Wesentlichen horizontal erstreckt. Die Abdeckung 10 ist mit hier nicht gezeigten Mitteln fixiert, so dass der Abstand zwischen dem Kragen 8 und dem Rand 42 der Abdeckung 10 festgelegt ist. Über der Abdeckung 10 kann ein hier nicht gezeigtes übliches Laubsieb angeordnet sein. Dieses verhindert, dass ein ringförmiger Durchlass 9 zwischen dem Kragen 8 und der Abdeckung 10 verstopft wird und beispielsweise Laub in den Einlauf 3 gelangen kann.In the Fig. 1 shown device 1 has an inlet 3, which is designed as an inlet pot and which is installed on a roof only here indicated 14, in order to dissipate water 2 from a roof top 15. The inlet 3 has a circumferential collar 8, which extends radially outwardly substantially in the plane of the roof top 15. Above the inlet 3, an example disc-shaped and a peripheral edge 42 having cover 10 is arranged, which extends at a distance from the collar 8 substantially horizontally. The cover 10 is fixed with means not shown here, so that the distance between the collar 8 and the edge 42 of the cover 10 is fixed. Over the cover 10 may be arranged a not shown here usual leaf screen. This prevents an annular passage 9 between the collar 8 and the cover 10 is clogged and, for example, leaves can get into the inlet 3.

Der Einlauf 3 bildet unter der Abdeckung 10 einen muldenförmigen Innenraum 13, in welchen bei Regenfall in Richtung der Pfeile 37 Wasser einströmt. Dieses Wasser gelangt in das Abflussrohr 6, das sich an einer Unterseite 7 des Einlaufs 3 nach unten erstreckt. Dieses Abflussrohr 6 führt schliesslich zu einer hier nicht gezeigten Auslassöffnung, durch welches das Wasser ausströmen kann. Das abzuführende Wasser 2 gelangt somit zuerst durch eine obere Öffnung 4 in den muldenförmigen Innenraum 13 und von diesem durch eine engere und untere Öffnung 5 in das Abflussrohr 6. Bei starkem Regenfall kommt es zu einer sogenannten Vollfüllung, bei welcher in Fliessrichtung im Einlauf 3 eine Absaugwirkung erreicht wird, welche die Leistung erhöht. Eine ununterbrochene kontinuierliche Saugwirkung wird bei etwa 70% der maximalen Leistung erreicht. Bei weniger starkem Regenfall wird gemäss Fig. 2 durch den ringförmigen Durchlass 9 ausser Wasser 2 auch Luft angesaugt. Im Abflussrohr 6 entsteht dadurch die in Fig. 2 angedeutete hoch turbulente und chaotische Zweiphasenströmung 38. Diese ist eine äusserst starke Störungsquelle und verschlechtert nicht nur die Leistung der Vorrichtung 1', sondern erzeugt auch vergleichsweise hohe störende Geräusche. Diese chaotische Zweiphasenströmung 38 konnte vor allem im Bereich von 50 - 70% der maximalen Leistung beobachtet werden.The inlet 3 forms under the cover 10 has a trough-shaped interior 13, in which flows in rainfall in the direction of arrows 37 water. This water enters the drain pipe 6, which extends down to a bottom 7 of the inlet 3. This drain pipe 6 finally leads to an outlet opening, not shown here, through which the water can flow. The discharged water 2 thus passes first through an upper opening 4 in the trough-shaped interior 13 and from there through a narrower and lower opening 5 in the drain pipe 6. In heavy rainfall occurs to a so-called full filling, in which a suction effect is achieved in the direction of flow in the inlet 3, which increases the power. An uninterrupted continuous suction is achieved at about 70% of maximum power. In less rainfall is according to Fig. 2 sucked air through the annular passage 9 except water 2. In the drain pipe 6 thereby creates the in Fig. 2 indicated highly turbulent and chaotic two-phase flow 38. This is a very strong source of interference and not only worsens the performance of the device 1 ', but also produces relatively high disturbing noises. This chaotic two-phase flow 38 could be observed above all in the range of 50-70% of the maximum power.

Bei der in Fig. 2 gezeigten Vorrichtung 1', ist die Abdeckung 10' gemäss dem Stand der Technik ausgebildet. Die erfindungsgemässe Vorrichtung 1 gemäss Fig. 1 besitzt im Unterschied hierzu ein geräuschminderndes Element 16, das an der Abdeckung 10 befestigt ist und das an einem oberen Ende eine Luftansaugöffnung 26 aufweist, die in einen Kanal 27 führt, der an einem unteren Ende 16b eine Luftauslassöffnung 39 aufweist. Der Kanal 27 erstreckt sich somit über die ganze Länge des Elementes 16. Ein unteres Ende 16b und damit die Luftauslassöffnung 39 befinden sich im Abflussrohr 6. Die Luftansaugöffnung 26 befindet sich wie ersichtlich über einer Oberseite 11 der Abdeckung 10. Die Luftansaugöffnung 26 kann jedoch auch in der Ebene der Oberseite 11 angeordnet sein. Wesentlich ist, dass durch die Luftansaugöffnung 26 Luft von aussen in den Kanal 27 eintreten kann.At the in Fig. 2 shown device 1 ', the cover 10' is formed according to the prior art. The inventive device 1 according to Fig. 1 In contrast, it has a noise-reducing element 16 which is fixed to the cover 10 and which has at an upper end an air intake opening 26 which leads into a channel 27 having an air outlet opening 39 at a lower end 16b. The channel 27 thus extends over the entire length of the element 16. A lower end 16b and thus the air outlet opening 39 are located in the drainage pipe 6. The air intake opening 26 is located as seen on an upper side 11 of the cover 10. The air intake opening 26 may, however be arranged in the plane of the top 11. It is essential that air can enter the channel 27 from the outside through the air intake opening 26.

Das Element 16 hat die Wirkung, dass bei einer Entwässerung des Dachs 14 gemäss Fig. 1 durch die Öffnung 26 Luft angesaugt und diese an der Luftauslassöffnung 39 in Form von Luftblasen 36 in das Wasser des Abflussrohres 6 ausströmt. Dadurch wird der Eintritt von Luft am ringförmigen Durchlass 9 wesentlich vermindert. Durch den ringförmigen Durchlass 9 strömt somit im Wesentlichen lediglich noch Wasser in den muldenförmigen Innenraum 13. Dies hat die Wirkung, dass eine hoch turbulente und chaotische Zweiphasenströmung 38 mit den entsprechenden negativen Auswirkungen auch bei Teillast vermieden wird und damit die Strömung des Wassers im Abflussrohr 6 wesentlich stabiler und ruhiger verläuft. Auch die Strömung im muldenförmigen Innenraum 13 wird dadurch wesentlich weniger turbulent und somit stabiler. Die dadurch stabilisierte Strömung des Wassers erzeugt entsprechend weniger Schwingungen am Einlauf 3 und am Abflussrohr 6, was sich ebenfalls auf die Geräuschminderung auswirkt. Das Element 16 ragt mit seinem unteren Ende 16b vorzugsweise in das Abflussrohr 6. Vorzugsweise beträgt die sich im Abflussrohr 6 befindliche Länge wenigstens 10%, vorzugsweise wenigstens 20% der gesamten Länge des Elements 16.The element 16 has the effect that in a drainage of the roof 14 according to Fig. 1 Air is sucked through the opening 26 and flows out of it at the air outlet opening 39 in the form of air bubbles 36 into the water of the drainage pipe 6. As a result, the entry of air at the annular passage 9 is substantially reduced. Thus, essentially only water flows through the annular passage 9 into the trough-shaped interior space 13. This has the effect of avoiding a highly turbulent and chaotic two-phase flow 38 with the corresponding negative effects even at partial load and thus the flow of the water in the drainage pipe 6 much more stable and quiet. The flow in the trough-shaped interior 13 is characterized significantly less turbulent and thus more stable. The thus stabilized Flow of water generates correspondingly less vibration at the inlet 3 and the drain pipe 6, which also affects the noise reduction. The element 16 preferably projects with its lower end 16 b into the drainage pipe 6. The length located in the drainage pipe 6 is preferably at least 10%, preferably at least 20% of the total length of the element 16.

Das geräuschmindernde Element 16 kann als einfaches Rohr realisiert werden. Ein entsprechendes geräuschminderndes Element 16 ist in Fig. 3a dargestellt. Zur Befestigung des geräuschmindernden Elements 16 in der Abdeckung 10 besitzt diese eine durchgehende Bohrung 40, in welche das geräuschmindernde Element 16 eingeführt und befestigt ist.The noise reducing element 16 can be realized as a simple tube. A corresponding noise reducing element 16 is shown in FIG Fig. 3a shown. To attach the noise reducing element 16 in the cover 10, this has a through hole 40 into which the noise reducing element 16 is inserted and fixed.

Die Fig. 3b zeigt eine Variante des geräuschmindernden Elementes 17, bei welcher auch seitlich eine Mehrzahl von Öffnungen 28 vorgesehen sind, durch die ebenfalls Luft austreten kann. Beim geräuschmindernden Element 18 gemäss Fig. 3c sind entsprechende Öffnungen 29 in einem unteren Bereich des geräuschmindernden Elementes 18 angeordnet. Durch die Öffnungen 28 und 29 können gemäss Fig. 1 vergleichsweise kleine Luftblasen 36 in das wegströmende Wasser abgegeben werden. Die gewünschte Saugwirkung wird dadurch nicht beeinträchtigt.The Fig. 3b shows a variant of the noise-reducing element 17, in which also a plurality of openings 28 are provided laterally through which air can also escape. When noise-reducing element 18 according to Fig. 3c corresponding openings 29 are arranged in a lower region of the noise-reducing element 18. Through the openings 28 and 29 can according Fig. 1 comparatively small air bubbles 36 are discharged into the flowing away water. The desired suction is not affected.

Die Fig. 4a zeigt ein geräuschminderndes Element 19, das an einem unteren Ende 32 anstelle der einen Öffnung 39 mehrere kleine siebartige Öffnungen 30 besitzt. Durch diese Öffnungen 30 kann die durch das geräuschmindernde Element 19 durchströmende Luft besonders gezielt und mit kleinen Luftblasen 36 abgegeben werden. Messungen haben gezeigt, dass dadurch die Frequenz des Schalls erhöht wird und dadurch die Geräusche in einem höheren Frequenzbereich anfallen. Solche Geräusche sind weniger störend als die bekannten gurgelnden Geräusche, die eine vergleichsweise tiefe Frequenz besitzen. Einerseits wird somit die Geräuschbildung vermindert und andererseits wird die Frequenz erhöht.The Fig. 4a shows a noise-reducing element 19 which has a plurality of small sieve-like openings 30 at a lower end 32 instead of the one opening 39. Through these openings 30, the air flowing through the noise-reducing element 19 can be discharged in a particularly targeted manner and with small air bubbles 36. Measurements have shown that this increases the frequency of the sound and thus causes the noise in a higher frequency range. Such noises are less disturbing than the known gurgling noises which have a comparatively low frequency. On the one hand, the noise is thus reduced and on the other hand, the frequency is increased.

Das untere Ende 32 kann beispielsweise halbkugelförmig ausgebildet sein. Gemäss Fig. 4b ist ein geräuschminderndes Element 20 vorgesehen, das ein konisch sich nach unten verengendes unteres Ende 33 aufweist, das siebförmig durchlässig ausgebildet und eine Mehrzahl von vergleichsweise kleinen Öffnungen 31 aufweist.The lower end 32 may be formed, for example, hemispherical. According to Fig. 4b a noise-reducing element 20 is provided, which has a conically downwardly constricting lower end 33 which has a sieve-like permeability and a plurality of comparatively small openings 31.

Die Figuren 5a bis 5e zeigen geräuschmindernde Elemente 21 bis 25, die jeweils zusätzlich am oberen Ende mit Öffnungen 41 versehen sind, die das Ansaugen von Luft ermöglichen. Das obere Ende ist hier somit ebenfalls siebförmig ausgebildet. Bei den geräuschmindernden Elementen 24 und 25 sind zudem seitlich weitere Öffnungen 34 und 35 für den Luftaustritt vorgesehen. Die oberen Enden als auch die unteren Enden können jeweils beispielsweise halbkreisförmig oder konisch zulaufend ausgebildet sein.The FIGS. 5a to 5e show noise reducing elements 21 to 25, which are each additionally provided at the upper end with openings 41, which allow the intake of air. The upper end is therefore also formed here like a sieve. In the noise-reducing elements 24 and 25 also laterally further openings 34 and 35 are provided for the air outlet. The upper ends and the lower ends may each be formed, for example, semicircular or tapered.

BEZUGSZEICHENLISTELIST OF REFERENCE NUMBERS

11
Vorrichtungcontraption
22
Wasserwater
33
Einlaufenema
44
obere Öffnungupper opening
55
untere Öffnunglower opening
66
Abflussrohrwaste pipe
77
Unterseitebottom
88th
Kragencollar
99
ringförmiger Durchlassannular passage
1010
Abdeckungcover
1111
Oberseitetop
1212
Unterseitebottom
1313
Innenrauminner space
1414
Dachtop, roof
1515
DachoberseiteRoof top
16 bis 2516 to 25
Elementelement
16a16a
oberes Endetop end
16b16b
unteres Endelower end
2626
Luftansaugöffnungair intake opening
2727
Kanalchannel
2828
Öffnungopening
2929
Öffnungopening
3030
Öffnungopening
3131
Luftauslassöffnungair outlet
3232
unteres Endelower end
3333
unteres Endelower end
3434
Öffnungenopenings
3535
Öffnungenopenings
3636
Luftblasenbubbles
3737
Pfeilarrow
3838
ZweiphasenströmungTwo-phase flow
3939
Luftauslassöffnungair outlet
4040
Bohrungdrilling
4141
Öffnungopening
4242
Randedge

Claims (12)

  1. Roof drainage device, comprising an inlet (3), which has an opening (4) for the water to be evacuated and through which water can flow away, wherein inlet (3) has a horizontally extending collar (8) and a cover (10), which forms an annular passage (9) through which the water to be evacuated can flow as closed current, wherein the cover (10) is arranged at a set distance above this collar (8) and comprising at least one noise-reducing element (16-25), which projects into the inlet (3), wherein the at least one noise-reducing element (16-25) is configured such that, in the course of the water drainage, it introduces air into the water flowing away in the inlet (3), so that an intake of air through the said annular passage (9) is reduced, wherein the at least one noise-reducing element (16-25) has at least one upper air intake opening (26) and one lower air outlet opening (31), wherein the upper air intake opening (26) is disposed above or in the plane of the cover (10), characterized in that the annular passage (9) is provided between the collar (8) and the cover (10).
  2. Device according to Claim 1, characterized in that the at least one noise-reducing element (16-25) is disposed on the cover (10).
  3. Device according to Claim 1 or 2, characterized in that the at least one noise-reducing element (16-25) projects with a lower end (16b) into the drainpipe (6).
  4. Device according to Claim 1, characterized in that the air outlet opening (31) and/or the air intake opening (26) is/are configured in the form of a sieve.
  5. Device according to one of Claims 1 to 4, characterized in that the at least one noise-reducing element (16-25) has between an upper end (16a) and a lower end (16b) a plurality of openings (28, 29, 34, 35), through which aspirated air can escape into the inlet (3).
  6. Device according to one of Claims 1 to 5, characterized in that the at least one noise-reducing element (16-25) is of elongate configuration.
  7. Device according to one of Claims 1 to 6, characterized in that the at least one noise-reducing element (16-25) is of tubular configuration.
  8. Device according to one of Claims 1 to 7, characterized in that the at least one noise-reducing element (16-25) has a continuous air duct (27), which in or above the cover (10) is open for the intake of air.
  9. Device according to one of Claims 1 to 8, characterized in that the at least one noise-reducing element (16-25) projects with at least 10%, and preferably at least 20% of its length, into the drainpipe (6).
  10. Device according to one of Claims 1 to 9, characterized in that the cover (10), outside of the at least one noise-reducing element (16-25), is closed.
  11. Device according to one of Claims 1 to 10, characterized in that the cover (10) is of discshaped configuration and protrudes with a rim (42) laterally beyond the upper opening (4) of the inlet (3).
  12. Device according to one of Claims 1 to 11, characterized in that the inlet (3) is configured as a pot, which has a base in which a lower opening (5) is arranged.
EP10405062.0A 2010-03-25 2010-03-25 Device for removing water from roofs Active EP2369088B1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DK10405062.0T DK2369088T3 (en) 2010-03-25 2010-03-25 Device for removing water from roofs
PL10405062T PL2369088T3 (en) 2010-03-25 2010-03-25 Device for removing water from roofs
EP10405062.0A EP2369088B1 (en) 2010-03-25 2010-03-25 Device for removing water from roofs
AU2011200482A AU2011200482B2 (en) 2010-03-25 2011-02-04 Roof drainage device
KR1020110015493A KR20110107738A (en) 2010-03-25 2011-02-22 Roof drainage device
CN2011100711917A CN102199942A (en) 2010-03-25 2011-03-24 Device for removing water from roofs
CN201610983383.8A CN106567506A (en) 2010-03-25 2011-03-24 Device for removing water from roofs
KR1020180002975A KR20180005732A (en) 2010-03-25 2018-01-09 Roof drainage device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10405062.0A EP2369088B1 (en) 2010-03-25 2010-03-25 Device for removing water from roofs

Publications (2)

Publication Number Publication Date
EP2369088A1 EP2369088A1 (en) 2011-09-28
EP2369088B1 true EP2369088B1 (en) 2013-09-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP10405062.0A Active EP2369088B1 (en) 2010-03-25 2010-03-25 Device for removing water from roofs

Country Status (6)

Country Link
EP (1) EP2369088B1 (en)
KR (2) KR20110107738A (en)
CN (2) CN102199942A (en)
AU (1) AU2011200482B2 (en)
DK (1) DK2369088T3 (en)
PL (1) PL2369088T3 (en)

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Publication number Priority date Publication date Assignee Title
PL2369088T3 (en) * 2010-03-25 2014-02-28 Geberit Int Ag Device for removing water from roofs
CN102900205B (en) * 2012-11-14 2014-10-29 北京泰宁科创雨水利用技术股份有限公司 Automatic-reversing overflow anti-freezing compound rainwater drainage and collection eaves gutter system and construction method
GB2580236B (en) 2014-04-17 2020-10-28 Hydro Int Ltd Apparatus for treating runoff
CN106988490A (en) * 2017-06-07 2017-07-28 华东建筑设计研究院有限公司 A kind of dewatering in siphon type standpipe
CN108252390B (en) * 2018-01-10 2020-05-05 河海大学 Inflow vertical shaft for reducing gas explosion strength of urban deep drainage system
JP2023533252A (en) * 2020-07-09 2023-08-02 ファスト フロー リミテッド System and method for backflow prevention in vertical storm drain pipes with multiple side branches

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FI58193C (en) 1979-09-21 1980-12-10 Kontekla Oy REGNVATTENBRUNN FOER EN BYGGNAD ELLER LIKNANDE
WO1983003114A1 (en) 1982-03-09 1983-09-15 Ebeling, Olavi Draining arrangement for roof
DE4212205C2 (en) * 1992-04-10 1995-11-23 Buchtal Gmbh Swimming pool drain system
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DE9416495U1 (en) 1993-12-01 1994-12-01 Geberit Technik Ag, Jona Roof water inlet
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DE10026842A1 (en) 2000-05-30 2002-01-03 Moeck Gmbh & Co Kg Geb Device for roof drainage
AU7947201A (en) 2000-11-02 2002-05-09 Geberit Technik Ag Roof drainage system and process for roof draining
EP1510632A3 (en) * 2003-08-21 2006-04-05 Oekag Wassertechnik (Schweiz) AG Drainage device
DE502004010907D1 (en) 2004-06-15 2010-04-29 Geberit Internat Ag Jona Roof water inlet with a water collection trough and method for operating such a roof water inlet
CN2844281Y (en) * 2005-11-18 2006-12-06 深圳市卓宝科技股份有限公司 Siphon-style rain drainer
CN201037292Y (en) * 2007-05-23 2008-03-19 深圳市四和建筑科技有限公司 Siphon rain water bucket
JP2009097151A (en) * 2007-10-12 2009-05-07 Okamoto Kensetsu Yohin Seisakusho:Kk Permeable structure
PL2369088T3 (en) * 2010-03-25 2014-02-28 Geberit Int Ag Device for removing water from roofs

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Publication number Publication date
KR20110107738A (en) 2011-10-04
CN106567506A (en) 2017-04-19
AU2011200482B2 (en) 2017-02-02
DK2369088T3 (en) 2014-01-13
AU2011200482A1 (en) 2011-10-13
PL2369088T3 (en) 2014-02-28
EP2369088A1 (en) 2011-09-28
KR20180005732A (en) 2018-01-16
CN102199942A (en) 2011-09-28

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