DE3900302A1 - Process and apparatus for evening out discharge-water quantities from stormwater retention tanks - Google Patents

Process and apparatus for evening out discharge-water quantities from stormwater retention tanks

Info

Publication number
DE3900302A1
DE3900302A1 DE19893900302 DE3900302A DE3900302A1 DE 3900302 A1 DE3900302 A1 DE 3900302A1 DE 19893900302 DE19893900302 DE 19893900302 DE 3900302 A DE3900302 A DE 3900302A DE 3900302 A1 DE3900302 A1 DE 3900302A1
Authority
DE
Germany
Prior art keywords
pipe
storage space
discharge
drain
water
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.)
Withdrawn
Application number
DE19893900302
Other languages
German (de)
Inventor
Rolf Stahn
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19893900302 priority Critical patent/DE3900302A1/en
Publication of DE3900302A1 publication Critical patent/DE3900302A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/10Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • E03F5/105Accessories, e.g. flow regulators or cleaning devices
    • E03F5/107Active flow control devices, i.e. moving during flow regulation

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sewage (AREA)
  • Barrages (AREA)

Abstract

In order to achieve a quasi-stationary discharge from stormwater retention tanks, it is proposed to provide, at the level of the tank bottom, an angled-off discharge pipe which is mounted in the tank wall such that it can rotate about the pipe axis and whose outflow end opens into a discharge duct, and the inflow end of the discharge pipe is coupled, in the retaining chamber, to a float. The discharge-regulating action of this apparatus is based on the fact that, during the filling of the retention chamber, the float floats up in said chamber, consequently the discharge pipe inevitably completes a rotary movement and, therefore, the pressure level between the water level in the tank and the discharge-pipe end remains approximately constant during the entire discharging operation.

Description

Im Bereich der Siedlungswasserwirtschaft werden für die Schmutzwasserableitung häufig Stauräume vorgesehen, um das Kanalsystem oder Kläranlagen nicht zu überlasten bzw. um Vorfluter gegen Notentlastungen abzuschirmen.In the area of urban water management for Dirty water drainage is often provided to storage spaces not to overload the sewer system or sewage treatment plants or to shield floodplains against emergency relief.

Für die Gestaltung und den Betrieb der Stauräume ist die Abflußregelung ein wesentlicher Aspekt. Weil das Abwasser auch grobe Stoffe enthalten kann, sind im allgemeinen den Abfluß-Fließquerschnitten nach unten Grenzen gesetzt, da bei zu kleinen Querschnitten infolge Verstopfungen die Betriebssicherheit gefährdet ist. Andererseits dürfen die Querschnitte nicht zu groß sein, weil dann die gewünschte Speicherwirkung nicht zustande komm. Die obige Diskussion bezieht sich auf die üblicherweise an der Sohle eines Stau­ raumes fest eingebaute Abflußregelung. Da diese Regelungen ja nach Bauart ihre Kapazität mehr oder weniger druckhöhen­ abhängig entwickeln, steigt die Abflußleistung naturgemäß mit der Füllung des Stauraumes entsprechend an.For the design and operation of the storage spaces is the Drainage control an essential aspect. Because the sewage can also contain coarse substances are generally the Drain flow cross-sections set limits down there if the cross-sections are too small as a result of blockages Operational safety is at risk. On the other hand, they can Cross sections should not be too large, because then the desired one Storage effect does not come about. The discussion above refers to the usually on the sole of a traffic jam fixed drainage control. Because these regulations depending on the design, increase their capacity more or less depending on the development, the drainage capacity naturally increases with the filling of the storage space accordingly.

Zur Erzielung eines mehr ausgeglichenen, quasi-stationären Stauraumabflusses wird erfindungsgemäß vorgeschlagen, in Höhe der Beckensohle ein abgewinkeltes, in der Becken­ wand um die Rohrachse drehbar gelagertes Abflußrohr, des­ sen Auslaufende in einen Ablaufkanal mündet und das Ein­ laufende des Abflußrohres in dem Stauraum mit einem Schwimmer gekoppelt ist, vorzusehen. Die den Abfluß regeln­ de Wirkungsweise der beschriebenen Einrichtung beruht dar­ auf, daß bei Regenereignissen mit steigendem Wasserspiegel in dem Stauraum auch der Schwimmer auftreibt und durch seine Koppelung mit dem Auslaufrohr, dieser zwangsläufig eine Drehung unter Anhebung des Auslaufendes vollzieht. Dadurch wird die Druckhöhe des Auslaufrohres und die Ablaufmenge re­ duziert. Diese Einrichtung wird so ausgelegt, daß die Aus­ laufrohroberkante bei einer durch Rohrwiderlager begrenzten, maximal möglichen Drehung, unter dem zulässigen Stauziel des Stauraumes liegt. Da bei dieser Verfahrensweise die druckhöhenbedingte Ablaufleistung erheblich reduziert wird, besteht die Möglichkeit, den Durchmesser der Ablaufleitung entsprechend größer zu wählen und dadurch die Betriebs­ sicherheit zu steigern.To achieve a more balanced, quasi-stationary Storage space drain is proposed according to the invention Angled at the level of the pelvic floor, in the pelvis wall rotatably mounted drain pipe, the The outlet end opens into a drainage channel and the inlet  running of the drain pipe in the storage space with a Float is coupled to provide. That regulate the drain de Operation of the device described is based on that with rain events with rising water levels in the storage space also floats and through his Coupling with the outlet pipe, this inevitably one Rotation takes place while raising the outlet end. Thereby the pressure head of the discharge pipe and the discharge quantity will be right induced. This facility is designed so that the off upper edge of the tube in the case of a maximum possible rotation, below the permissible congestion target of the storage space. Because with this procedure the pressure-related drainage capacity is significantly reduced, there is the possibility of the diameter of the drain pipe to choose accordingly larger and thereby the operating increase security.

Anhand der Fig. 1 und 2 wird ein Anwendungsbeispiel beschrieben. DieReferring to Figs. 1 and 2, an application example will be described. The

Fig. 1 = Vertikalschnitt, Fig. 1 = vertical section,

Fig. 2 = Hori­ zontalschnitt. Fig. 2 = Hori zontalschnitt.

Im Anschluß an das Rückhaltebecken 1 befin­ det sich der Ablaufkanal 2. Das Auslaufrohr 3 ist in der Wand 4 drehbar gelagert und abgedichtet. Das in den Stau­ raum mündende Rohr 3 wird mit dem Schwimmer 5 gekoppelt. Bei der Füllung des Rückhaltebeckens 1 steigt in diesem der Wasserspiegel max. bis zu der Marke 6. Hierbei geht der Schwimmer 5 nebst Auslaufrohr 3 aus der Position 7 in die Position 8 über, bei welcher das Rohr 3 die Oberkante 9 aufweist, die unter der Marke 6 liegt. Während des Einstau- bzw. Entleerungsvorganges laufen Wassermengen 11 über das Rohr 3 in den Kanal 2. Bei allen Wasserspiegellagen 6 in dem Stauraum 1 soll die Differenz 10 zu der Rohroberkante 9 bestehen.Following the retention basin 1, the drain channel 2 is located . The outlet pipe 3 is rotatably mounted and sealed in the wall 4 . The pipe 3 opening into the storage space is coupled to the float 5 . When the retention basin 1 is filled, the water level rises max. up to the mark 6 . Here, the float 5 passes along with the outlet pipe 3 from the position 7 to the position 8 , in which the pipe 3 has the upper edge 9 , which is below the mark 6 . During the damming or emptying process, water quantities 11 run through the pipe 3 into the channel 2 . In all water level layers 6 in the storage space 1 , the difference 10 to the upper edge 9 of the tube should exist.

Claims (2)

1. Verfahren und Einrichtung zur Vergleichmäßigung von Abflußwassermengen aus Regenrückhaltebecken, Kanalstauräumen o. ä. (1), dadurch gekennzeichnet, daß die effektive Druckhöhe (10) als Differenz zwischen vari­ ablen Wasserspiegeln (6) in dem Stauraum (1) und der Oberkante (9) einer Fließverbindung (3) von dem Stauraum (1) zu einem Ablaufkanal (2) bei allen Füllungs- und Ent­ leerungszuständen des Stauraumes (1) mit einer auto­ matisch wirkenden Einrichtung angenähert konstant gehalten wird und dadurch die Ablaufwassermengen (11) in den Ablaufkanal (2) auch zwangsläufig vergleich­ mäßigt abfließen.1. A method and device for the equalization of runoff water from rainwater retention basins, sewer storage spaces or the like ( 1 ), characterized in that the effective pressure head ( 10 ) as the difference between variable water levels ( 6 ) in the storage space ( 1 ) and the upper edge ( 9 ) a flow connection ( 3 ) from the storage space ( 1 ) to a drain channel ( 2 ) at all filling and Ent emptying states of the storage space ( 1 ) with an auto matic device is kept approximately constant and thereby the drain water quantities ( 11 ) in the Drain channel ( 2 ) must also flow in a comparatively moderate manner. 2. Verfahren und Einrichtung wie Anspruch 1, dadurch gekennzeichnet, daß der automatisch geregelte Abfluß­ vorgang in der Weise erfolgt, indem in dem Kanal (2) ein abgewinkeltes Ablaufrohr (3) vorgesehen wird, daß Rohr (3) durch die Trennwand (4) verläuft, dort um die Rohrachse drehbar und abgedichtet gelagert ist, in dem Stauraum (1) eine Koppelung des Rohrendes mit einem Schwimmer (5) erfolgt, welcher bei der Beschickung des Stauraumes (1) mit Abwasser aus einer Position (7) bis zu einer Position (8) auftreibt und dabei das Rohr (3) zwangs­ läufig eine entsprechende Drehbewegung synchron aus­ führt.2. The method and device as claimed in claim 1, characterized in that the automatically controlled discharge process takes place in such a way that an angled drain pipe ( 3 ) is provided in the channel ( 2 ), that pipe ( 3 ) through the partition ( 4 ) runs, there is rotatable and sealed around the pipe axis, in the storage space ( 1 ) a coupling of the pipe end with a float ( 5 ) takes place, which when loading the storage space ( 1 ) with waste water from one position ( 7 ) to one Position ( 8 ) expands and the tube ( 3 ) inevitably leads a corresponding rotary movement synchronously.
DE19893900302 1989-01-07 1989-01-07 Process and apparatus for evening out discharge-water quantities from stormwater retention tanks Withdrawn DE3900302A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19893900302 DE3900302A1 (en) 1989-01-07 1989-01-07 Process and apparatus for evening out discharge-water quantities from stormwater retention tanks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19893900302 DE3900302A1 (en) 1989-01-07 1989-01-07 Process and apparatus for evening out discharge-water quantities from stormwater retention tanks

Publications (1)

Publication Number Publication Date
DE3900302A1 true DE3900302A1 (en) 1990-07-12

Family

ID=6371672

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19893900302 Withdrawn DE3900302A1 (en) 1989-01-07 1989-01-07 Process and apparatus for evening out discharge-water quantities from stormwater retention tanks

Country Status (1)

Country Link
DE (1) DE3900302A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0658657A2 (en) * 1993-12-14 1995-06-21 Lothar Dipl.-Ing. Steinhardt Flushing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0658657A2 (en) * 1993-12-14 1995-06-21 Lothar Dipl.-Ing. Steinhardt Flushing device
EP0658657A3 (en) * 1993-12-14 1996-05-08 Steinhardt Lothar Flushing device.

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