EP0047489A1 - Procédé et dispositif pour la surveillance de conduits d'eau contre le refoulement - Google Patents

Procédé et dispositif pour la surveillance de conduits d'eau contre le refoulement Download PDF

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Publication number
EP0047489A1
EP0047489A1 EP81106864A EP81106864A EP0047489A1 EP 0047489 A1 EP0047489 A1 EP 0047489A1 EP 81106864 A EP81106864 A EP 81106864A EP 81106864 A EP81106864 A EP 81106864A EP 0047489 A1 EP0047489 A1 EP 0047489A1
Authority
EP
European Patent Office
Prior art keywords
closure member
backflow
sensor
pressure medium
closure
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Withdrawn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
EP81106864A
Other languages
German (de)
English (en)
Inventor
Dieter Gemmer
Rudolf Heil
Dieter Ing. Grad. Kunz
Walter Weiler
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.)
Aqseptence Group GmbH
Original Assignee
Passavant Werke AG and Co KG
Passavant Werke Michelbacher Hutte
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 Passavant Werke AG and Co KG, Passavant Werke Michelbacher Hutte filed Critical Passavant Werke AG and Co KG
Publication of EP0047489A1 publication Critical patent/EP0047489A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/02—Shut-off devices
    • E03F7/04—Valves for preventing return flow

Definitions

  • the invention relates to a method and a device for monitoring water and / or sewage pipes against backflow with a closure member provided in the line, which can be controlled with the aid of a sensor responsive to the liquid level in the line.
  • the object of the present invention is to create a method and a device for monitoring water and / or sewage pipes with improved security of the closing of the pipe in the event of a backflow.
  • two sensors at different heights can be arranged in front of the closure member for sensing the liquid level. If incoming water builds up in front of the closed closure element, the sensor located at the bottom responds first and opens the closure element. If there is a backflow behind the closure element at this time, the water will not drain, but will accumulate even higher and cause the higher sensor to respond. This is switched in such a way that it causes the already open closure member to close or blocks or only allows the closure member to be opened by the lower sensor or only permits it for a short time.
  • a backflow sensor can be arranged in the drainage direction behind the closure member, the closure member being able to be opened by means of the inlet-side liquid level sensor only if no liquid level is registered at the backflow sensor, or the backflow sensor also closing the already opened closure member causes.
  • an odor trap is additionally obtained without the need to use additional components.
  • the device for carrying out the method according to the invention with a closure member provided in the line, which is controlled by a sensor which responds to the liquid level in the line, is according to the present invention characterized in that the sensor, viewed in the normal feed direction, is arranged in front of the closure member and is switched in such a way that it only gives the control impulse for opening the closure member when waste water is supplied.
  • the closure member is actuated by pressure medium by means of a pressure medium source which is always operational, e.g. B. the tap water network or a compressed air tank, and the sensor controls a valve that releases the pressure medium supply to close the closure member and temporarily blocks the opening of the closure member.
  • a pressure medium source which is always operational, e.g. B. the tap water network or a compressed air tank
  • the sensor controls a valve that releases the pressure medium supply to close the closure member and temporarily blocks the opening of the closure member.
  • the closure member is preferably a straight piece of tubing which can be compressed by the pressure medium.
  • a closure member which is electrically turned on, for example, a motor-driven Flat slide valve; in the event of a power failure, this can be provided with a conventional manual control.
  • the backflow closure device shown in FIG. 1 is provided with a pinch valve 2 inserted into a water and / or sewage pipe 1, which serves as a closure member and is normally closed.
  • a liquid level sensor 3 is provided, which is connected to an electrical control 5, which controls a shuttle valve 6 so that it normally supplies the pressure medium required for closing the pinch valve 2, for example tap water, to the pinch valve 2. If the inflowing water accumulates in front of the pinch valve 2 as far as the sensor 3, then: the shuttle valve 6 is controlled so that the pressure medium supply to the pinch valve is blocked and therefore opens.
  • a second liquid level sensor 3 a is arranged on the outlet side of the pinch valve 2 and is used to determine a backflow in line 1.
  • the backflow sensor 3a is also connected to the electrical control 5, in such a way that in the presence of a backflow on the outlet side of the pinch valve 2 and at the same time there is an amount of liquid at the inlet, which is registered by the sensor 3, the shuttle valve 6 from the controller 5 is controlled so that it does not cause the hose pinch valve 2 to open or, if it is already open, to close it.
  • Line serves as the pressure medium required to keep the pinch valve 2 closed water, which is taken from a water supply network 10, which is secured by a backflow preventer 11 against backflow of water into the water supply network.
  • the refluxing water is fed to line 1 via a drip point 9 above the maximum permitted backflow level.
  • a manual valve 7 is additionally provided, which can be used to practice the tap water in the line 1.
  • a bladder accumulator can also be provided between the control element 6 and the feed line, which is fed via a control element and, if the pressure medium fails, keeps the closure element closed and, if necessary, also allows it to be opened and closed in the meantime.
  • a conventional test and filling opening 8 On the outlet side, after the backflow sensor 3a, a conventional test and filling opening 8, as well as a hand slide 4 are provided for assembly and maintenance cases.
  • a closure member in the form of a motor-driven flat slide valve 52 is provided, which is always closed.
  • the flat slide valve 52 can be opened as a result of water on the inlet side in line 1 via a control 5 and a geared motor 53.
  • the motor 53 is, as is generally customary, provided with a manual control 53a, for example for draining water.
  • the power failure is indicated by an electrically triggered optical and / or acoustic signal supplied by a battery.
  • a backflow sensor 3a is provided in the line 1, which is also connected to the controller 5 and prevents the flat slide valve 52 from opening when backwatering, even with water present on the inlet side, or causes it to close when the valve 52 is already open.
  • a backflow sensor can also be used, which is arranged in front of the closure member. Expediently, this backflow sensor is then located higher than an existing liquid level sensor and blocks its control for opening the closure member also in the presence of a backflow. Furthermore, the existing backflow sensor 3a can be connected to an alarm device for the backflow in addition to the controller 5: The backflow sensor or the sensing point for the alarm line is then expediently arranged on a cover serving as an inspection closure for closing the test and filling opening 8.
  • compressed air can also be used as pressure medium instead of the tap water described.
  • a manually operated reusable valve can be switched on in the pressure medium line, which only relieves the pressure chamber for as long as it is pressed and keeps the closure element open.

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)
  • Examining Or Testing Airtightness (AREA)
  • Check Valves (AREA)
EP81106864A 1980-09-03 1981-09-02 Procédé et dispositif pour la surveillance de conduits d'eau contre le refoulement Withdrawn EP0047489A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3033156 1980-09-03
DE19803033156 DE3033156A1 (de) 1980-09-03 1980-09-03 Verfahren und vorrichtung zur ueberwachung von wasserfuehrenden leitungen gegen rueckstau

Publications (1)

Publication Number Publication Date
EP0047489A1 true EP0047489A1 (fr) 1982-03-17

Family

ID=6111040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81106864A Withdrawn EP0047489A1 (fr) 1980-09-03 1981-09-02 Procédé et dispositif pour la surveillance de conduits d'eau contre le refoulement

Country Status (2)

Country Link
EP (1) EP0047489A1 (fr)
DE (1) DE3033156A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4238059A1 (de) * 1992-11-11 1994-05-19 Bernhard Kessel Bodenablauf
WO1997038177A1 (fr) * 1996-04-10 1997-10-16 Infiltration Control Systems Limited Procede et appareil de reduction des infiltrations salines dans les reseaux d'egouts cotiers
DE102010036916A1 (de) * 2010-08-09 2012-02-09 Aco Severin Ahlmann Gmbh & Co. Kg Rückstausperre für eine Abwasserleitung und Verfahren zum Betreiben einer derartigen Rückstausperre

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3202310A1 (de) * 1982-01-26 1983-07-28 Passavant-Werke AG & Co KG, 6209 Aarbergen Vorrichtung zum betaetigen eines druckmittelbetaetigten absperrorgans in einer abwasserleitung
DE29900377U1 (de) 1999-01-12 1999-03-25 Frenzel, Detlef, 84072 Au Vorrichtung zum Erfassen eines Rückstaus in einem fluidführenden Rohr

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE56953C (de) * CH. H. SHEPHERD in New-York, V. St. A.; 52 West 21 Str Selbsttätig wirkendes Aublafsventil für Kanalisationsrohre von Gebäuden
US2059635A (en) * 1934-12-03 1936-11-03 Honeywell Regulator Co Sewage control system
US3020922A (en) * 1957-12-09 1962-02-13 Levi I Oury Flood control unit
DE7222364U (de) * 1973-10-11 Schroeder H Absperrvorrichtung fur ruckflutendes Kanalisationswasser
DE2250824A1 (de) * 1972-10-17 1974-04-18 John Louis Pastor Vorrichtung zum selbsttaetigen absperren von rueckstau von schmutzwasser in gebaeuden
DE1927180B2 (de) * 1969-05-28 1975-12-04 Passavant-Werke Michelbacher Huette, 6209 Aarbergen Einrichtung zur Rueckstausicherung an Fluessigkeitsgefaelleleitungen,insbesondere Abwasserleitungen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE56953C (de) * CH. H. SHEPHERD in New-York, V. St. A.; 52 West 21 Str Selbsttätig wirkendes Aublafsventil für Kanalisationsrohre von Gebäuden
DE7222364U (de) * 1973-10-11 Schroeder H Absperrvorrichtung fur ruckflutendes Kanalisationswasser
US2059635A (en) * 1934-12-03 1936-11-03 Honeywell Regulator Co Sewage control system
US3020922A (en) * 1957-12-09 1962-02-13 Levi I Oury Flood control unit
DE1927180B2 (de) * 1969-05-28 1975-12-04 Passavant-Werke Michelbacher Huette, 6209 Aarbergen Einrichtung zur Rueckstausicherung an Fluessigkeitsgefaelleleitungen,insbesondere Abwasserleitungen
DE2250824A1 (de) * 1972-10-17 1974-04-18 John Louis Pastor Vorrichtung zum selbsttaetigen absperren von rueckstau von schmutzwasser in gebaeuden

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4238059A1 (de) * 1992-11-11 1994-05-19 Bernhard Kessel Bodenablauf
WO1997038177A1 (fr) * 1996-04-10 1997-10-16 Infiltration Control Systems Limited Procede et appareil de reduction des infiltrations salines dans les reseaux d'egouts cotiers
DE102010036916A1 (de) * 2010-08-09 2012-02-09 Aco Severin Ahlmann Gmbh & Co. Kg Rückstausperre für eine Abwasserleitung und Verfahren zum Betreiben einer derartigen Rückstausperre
DE102010036916B4 (de) * 2010-08-09 2015-04-09 Aco Severin Ahlmann Gmbh & Co. Kg Rückstausperre für eine Abwasserleitung und Verfahren zum Betreiben einer derartigen Rückstausperre

Also Published As

Publication number Publication date
DE3033156A1 (de) 1982-04-22

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): BE CH DE FR GB NL

17P Request for examination filed

Effective date: 19820915

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19841016

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KUNZ, DIETER, ING. GRAD.

Inventor name: HEIL, RUDOLF

Inventor name: WEILER, WALTER

Inventor name: GEMMER, DIETER