EP3666984B1 - Flushing device and drinking water and/or domestic water system with such a flushing device - Google Patents

Flushing device and drinking water and/or domestic water system with such a flushing device Download PDF

Info

Publication number
EP3666984B1
EP3666984B1 EP19215742.8A EP19215742A EP3666984B1 EP 3666984 B1 EP3666984 B1 EP 3666984B1 EP 19215742 A EP19215742 A EP 19215742A EP 3666984 B1 EP3666984 B1 EP 3666984B1
Authority
EP
European Patent Office
Prior art keywords
flushing
water
valve
control
pressure
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
EP19215742.8A
Other languages
German (de)
French (fr)
Other versions
EP3666984A1 (en
Inventor
Thomas Spöler
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.)
Gebr Kemper GmbH and Co KG
Original Assignee
Gebr Kemper GmbH and Co KG
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 Gebr Kemper GmbH and Co KG filed Critical Gebr Kemper GmbH and Co KG
Publication of EP3666984A1 publication Critical patent/EP3666984A1/en
Application granted granted Critical
Publication of EP3666984B1 publication Critical patent/EP3666984B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
    • E03B7/08—Arrangement of draining devices, e.g. manual shut-off valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D3/00—Flushing devices operated by pressure of the water supply system flushing valves not connected to the water-supply main, also if air is blown in the water seal for a quick flushing
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/006—Arrangements or methods for cleaning or refurbishing water conduits
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/02—Public or like main pipe systems
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
    • E03B7/075—Arrangement of devices for control of pressure or flow rate

Definitions

  • the present invention relates to a flushing device which has a flushing valve and can be connected to a drinking water system for flushing at least one water line.
  • a drinking water system a drinking and industrial water system with a connection to the public water supply network is usually implemented, which has at least one supply line leading to a consumer.
  • the connection to the public water supply network preferably has a water meter and at least one shut-off valve and is usually provided in a building at basement level.
  • the flushing device also has a control line connected to the flushing valve in terms of control and a control device controlling a position of the flushing valve by means of the control line for time-dependent and / or water temperature-dependent and / or water consumption-dependent flushing of the water line.
  • the flushing device can be arranged in such a way that the flushing valve is arranged downstream of the consumer in the direction of flow.
  • a rinsing device is based on that which goes back to the applicant DE 20 2008 002 822 U1 known.
  • the previously known flushing device is connected to a drinking and service water system which has a connection to the public water supply network, for example in the basement of a building.
  • Several supply lines for supplying various water consumers within the building are fed with fresh water via this connection. If water is not drawn by a consumer, stale water in the supply lines can be replaced by opening a flush valve and fresh water flowing in from the water supply network. Such an exchange of stale water is commonly referred to as a flushing or flushing process.
  • the water flowing out of the water system via the flush valve is diverted into a sewer line.
  • the flushing valve is provided at one end of the supply line or supply lines and is connected in terms of control to a central control device.
  • the position of the flush valve can be controlled by the central control device by means of a control line.
  • Automated flushing processes can be programmed using a time module integrated in the central control device.
  • a water temperature measured by a temperature sensor can be transmitted to the central control device. The period of the wash cycles can be adjusted depending on the measured temperature.
  • a flow sensor can be provided that measures the flow rate determined on the basis of which the central control device decides whether a flushing process is necessary. A leak can be detected using a pressure sensor. The central control device then shuts off the water system from the public water supply network and empties the system by keeping the flush valve in the open position.
  • the DE 20 2008 002 822 U1 discloses a flushing device with the generic features of claim 1 and can also be regarded as generic to claim 7.
  • a drinking water pipe remains unused for a longer period of time, the temperature of the standing water in it adjusts to the ambient temperature.
  • a thermal equilibrium is established between the environment and the drinking water pipe.
  • the relevant ambient temperature for the drinking water pipe is well above room temperature, and it is precisely in this area that the formation of germs such as legionella is favored. Rinsing the drinking water line is then necessary with a view to drinking water hygiene.
  • the prior art provides room for improvement in terms of flushing efficiency.
  • the present invention specifies a flushing device with the features of claim 1.
  • the control device of the flushing device is adapted for time-dependent and / or water-temperature-dependent and / or water-consumption-dependent flushing. How out DE 20 2008 002 822 U1 known, this can be realized by a time module which specifies flushing processes for the control device at certain times or intervals, and / or measuring the water temperature in the water pipe and / or measuring a flow rate through the water pipe, the measured values usually being evaluated in the control device and flow into the control of the flushing.
  • the flushing valve can usually be adjusted by means of a servomotor which is coupled to the control line.
  • the flushing device is also adapted to the water pressure-dependent control of the flushing.
  • Controlling the flushing in the context of the present invention is understood to mean, in particular, the opening and closing of the flushing valve.
  • a decision about not opening or blocking the flushing valve under certain circumstances is generally to be regarded as a control in the sense of the invention.
  • a means is preferably provided which, under certain water pressure conditions in the system, prevents water from flowing out of the system via the flushing valve, even if it opens.
  • a drinking and service water system can be flushed as efficiently as possible with the aid of the flushing device according to the invention.
  • flushing is omitted if a consumer's tapping process becomes noticeable through a change in the water pressure in the system. A fluctuation in the water pressure due to flushing during consumption, which may lead to a loss of comfort for the consumer, can thus be avoided.
  • the control device has a mechanical, hydraulic and / or electronic control element and controls the flushing in such a way that flushing is omitted when the control element perceives a reduced water pressure in the water system.
  • the control element usually includes an element that changes a position or a state depending on the pressure or quantitatively measures the pressure.
  • a water pressure that is lower than the water pressure with the water system connected to the water supply and closed consumer valves and closed flush valve is to be understood as a lowered water pressure; that is, with standing water in the connected water system.
  • Certain pressure fluctuations for example caused by minor leaks, usually do not lead to a noticeable drop in water pressure.
  • a reduced water pressure of the water system is to be understood as such a reduced water pressure caused by a tapping process by a consumer, which no longer ensures adequate supply to other extraction points.
  • the absolute value for a lowered pressure is different depending on the extraction point considered. Usually it is 2 bar, 1 bar or 0.5 bar. For the consumer in question, the pressure should not fall below the minimum flow pressure, which can be viewed as a criterion for suspending flushing.
  • the flushing device according to this invention is particularly suitable for use in laboratories and manufacturing plants in which people can come into contact with splashing, caustic or hot chemicals and can clean themselves with the aid of a safety shower. In this way, it can be prevented that an additional flushing process is triggered during an emergency and the operation of the safety shower, which would lead to an undersupply of the safety shower.
  • the flushing device has a mechanically pretensioned check valve upstream of the flushing valve in the flow direction as a control element, which opens in the direction of the flushing valve.
  • the non-return valve is usually preloaded in such a way that it remains in a closed position when the water pressure of the water system is reduced, so that water from the water system does not reach the flush valve. In this way it can be ensured in a simple manner that flushing does not take place when the pressure of the water system is reduced.
  • the flushing device has a pressure sensor upstream of the flushing valve as a control element and a control unit that communicates with the pressure sensor and is connected to the flushing valve in terms of control, the control unit being set up in such a way that the flushing valve is activated on the basis of a signal from the pressure sensor is switched off or blocked.
  • the control unit is preferably part of the control device.
  • the pressure sensor is preferably designed as a pressure switch or a pressure measuring device that quantitatively detects the water pressure.
  • the control unit usually contains logic for evaluating signals and issuing control commands.
  • Pressure switches are mechanical or electronic switches that are actuated by changing the pressure of a gaseous or liquid medium.
  • the most common implementation of a mechanical pressure switch has a metal membrane that closes a switch contact when a certain deflection occurs and the deflection is pressure-dependent. When the switching contact closes, a signal is sent to the control unit.
  • the flushing valve is moved from the closed position to the open position by the control device by means of a control line posed.
  • the control device can temporarily disconnect the control line from the power supply.
  • a mechanical blocking element that can be controlled by the control unit is also conceivable, which fixes the position of the flush valve in the closed position.
  • the flushing device according to the present invention has both a pressure switch and a pressure measuring device.
  • the flushing device has means for coupling the position of a valve assigned to a consumer to the position of the flushing valve, the coupling being designed such that opening the valve assigned to the consumer causes the flushing valve to close.
  • the coupling is preferably designed electronically.
  • a mechanical coupling is also conceivable.
  • the present invention specifies a drinking and service water system with a connection to the public water supply network, a water line leading to at least one consumer and a flushing device according to claim 1, wherein the flushing valve of the flushing device is downstream of the consumer in the direction of flow.
  • the drinking and service water system is provided in a residential, industrial or office building, hospital or hotel.
  • the drinking and service water system according to the invention can be provided in a laboratory or a manufacturing plant.
  • the control device of the drinking and service water system according to the present invention is set up in such a way that flushing does not take place when the water pressure in the water line is reduced. Furthermore, the drinking and service water system according to the present invention is preferably designed according to one or more of these developments discussed in connection with the flushing device.
  • the Fig. 1a shows a drinking and service water system with a connection 2 to the public water supply network, via which a supply line 4 is fed with fresh water, preferably cold water.
  • a supply line 4 is fed with fresh water, preferably cold water.
  • Two consumers are connected to the supply line 4, which in the exemplary embodiments are implemented as an emergency shower 6a for the entire body and an eye shower 6b.
  • a rinsing valve 8 is arranged downstream of the last consumer in the flow direction, ie the eye shower 6b in the flow direction, with the aid of which water standing in the supply line 4 can be drained and fresh water flows in via the connection 2.
  • the flush valve leads off via a free drain 10 into a sewer line.
  • the free drain 10 includes a fall section that is in direct connection with the ambient atmosphere, so that the legal requirements for the separation of drinking water and waste water or service water are met.
  • the flushing valve 8 is coupled to a control unit 22 via a control line 24, with a time module being integrated into the control unit 22, which causes the control unit 22 to close the flushing valve 8 for a flushing process by means of a servomotor 28 coupled to the control line 24 at certain times to open.
  • a sensor 30 is provided in the supply line 4 and is connected to the control unit 22 for signal transmission.
  • the sensor 30 can be a temperature or flow rate sensor.
  • a plurality of sensors, in particular at least one water temperature sensor and at least one flow rate sensor, can of course also be provided.
  • the measured values of the sensor or the sensors are evaluated in the control unit 22 and flow into the control of the flushing valve 8. For example, in the case of a measured temperature rise, the time intervals between the time modules specified flushing processes can be shortened or increased in the event of a measured increase in the flow rate.
  • a mechanically preloaded check valve 12 is arranged in the line section upstream of the flushing valve 8 in the flow direction.
  • the check valve 12 is shown in the enlarged illustration of the circled detail D of the drinking and service water system in Figure 1b can be seen in which a valve seat 14 and a spring-loaded valve body 16 are shown schematically.
  • the spring preload is set in such a way that when the emergency shower 6a or the eye shower 6b is open and the water pressure in the supply line 4 is reduced, the valve body 16 rests against the valve seat 14. In this case, no flushing process takes place even if the flushing valve 8 should open by appropriate control of the control unit 22.
  • valve body 16 is pressed into an open position by the water pressure in the supply line 4 against the spring force, so that by opening the flushing valve 8 by appropriate control of the control unit 22 an exchange of in the supply line 4 standing water is possible.
  • a shut-off valve for maintenance purposes with which the area downstream of the valve 18 can be depressurized, is identified by reference numeral 18.
  • the Fig. 2 shows a further embodiment of a drinking and service water system according to the present invention. Same components as in Fig. 1 are marked with the same reference numerals.
  • a mechanical pressure switch 20 is provided. This is arranged in an area between the last consumer in the flow direction, ie the eye shower 6b, and the flushing valve 8 and is exposed to the water pressure in this area. A reduced water pressure in this area affects the deflection of, for example, a metallic membrane within the pressure switch 20, which thereby closes an electrical contact in the pressure switch 20, whereupon a signal is sent to the control unit 22.
  • the control unit 22 which is connected to the flushing valve 8 for control purposes via the control line 24, controls the flushing valve 8 into the closed position after receiving the signal and / or disconnects the control line 24 from the power supply in order to keep the flushing valve 8 in the closed position or blocks the flushing valve 8 in the closed position, for example with the help of a mechanical blocking element.
  • the Fig. 3 shows a further embodiment of a drinking and service water system according to the present invention.
  • the same components as in the previous figures are again included the same reference numerals.
  • the embodiment according to Fig. 3 differs from the embodiment according to Fig. 2 in that at the point where in Fig. 2 the pressure switch 20 is provided, a pressure measuring device 26 is provided.
  • the pressure measuring device records the pressure in this area quantitatively and sends the measurement signals to the control unit 22.
  • Various pressure measuring devices are known to those skilled in the art which are suitable for measuring a water pressure in a line and of which at least one is used in the exemplary embodiment.
  • the control unit 22 evaluates the measurement signals with the help of an integrated logic, usually compares the measurement variables with a preset reference value and moves the flush valve 8 to the closed position at a reduced pressure and / or disconnects the control line 24 from the power supply to the flush valve 8 to be left in the closed position or locks the flush valve 8 in the closed position, for example with the aid of a mechanical blocking element.

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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Domestic Plumbing Installations (AREA)
  • Treatment Of Water By Ion Exchange (AREA)

Description

Die vorliegende Erfindung betrifft eine Spülvorrichtung, die ein Spülventil aufweist und zum Spülen mindestens einer Wasserleitung an ein Trinkwassersystem anschließbar ist. Als Trinkwassersystem gemäß der vorliegenden Erfindung ist in der Regel ein Trink- und Brauchwassersystem mit einem Anschluss an das öffentliche Wasserversorgungsnetz verwirklicht, das zumindest eine zu einem Verbraucher führende Versorgungsleitung hat. Der Anschluss an das öffentliche Wasserversorgungsnetz hat nach der vorliegenden Erfindung bevorzugt einen Wasserzähler und zumindest ein Absperrventil und ist in der Regel in einem Gebäude auf Kellerniveau vorgesehen. Die Spülvorrichtung weist des Weiteren eine steuerungsmäßig mit dem Spülventil verbundene Steuerleitung und eine eine Stellung des Spülventils mittels der Steuerleitung kontrollierende Steuerungsvorrichtung zum zeitabhängigen und/oder wassertemperaturabhängigen und/oderwasserverbrauchsabhängigen Spülen der Wasserleitung auf. Insbesondere kann die Spülvorrichtung derart angeordnet werden, dass das Spülventil dem Verbraucher in Strömungsrichtung nachgelagert angeordnet ist. Eine solche Spülvorrichtung ist aus dem auf die Anmelderin zurückgehenden DE 20 2008 002 822 U1 bekannt.The present invention relates to a flushing device which has a flushing valve and can be connected to a drinking water system for flushing at least one water line. As a drinking water system according to the present invention, a drinking and industrial water system with a connection to the public water supply network is usually implemented, which has at least one supply line leading to a consumer. According to the present invention, the connection to the public water supply network preferably has a water meter and at least one shut-off valve and is usually provided in a building at basement level. The flushing device also has a control line connected to the flushing valve in terms of control and a control device controlling a position of the flushing valve by means of the control line for time-dependent and / or water temperature-dependent and / or water consumption-dependent flushing of the water line. In particular, the flushing device can be arranged in such a way that the flushing valve is arranged downstream of the consumer in the direction of flow. Such a rinsing device is based on that which goes back to the applicant DE 20 2008 002 822 U1 known.

Die vorbekannte Spülvorrichtung ist an ein Trink- und Brauchwassersystem angeschlossen, das einen Anschluss an das öffentliche Wasserversorgungsnetz, zum Beispiel im Keller eines Gebäudes, hat. Über diesen Anschluss werden mehrere Versorgungsleitungen zur Versorgung verschiedener Wasserverbraucher innerhalb des Gebäudes mit frischem Wasser gespeist. Bei Ausbleiben einer Wasserentnahme durch einen Verbraucher kann abgestandenes Wasser in den Versorgungsleitungen durch Öffnen eines Spülventils und Nachströmen von frischem Wasser aus dem Wasserversorgungsnetz ausgetauscht werden. Ein derartiger Austausch von abgestandenem Wasser wird gemeinhin als Spülen bzw. Spülvorgang bezeichnet. Das über das Spülventil aus dem Wassersystem abfließende Wasser wird in einen Abwasserleitungsstrang abgeleitet. Das Spülventil ist an einem Ende der Versorgungsleitung bzw. Versorgungsleitungen vorgesehen und steuerungsmäßig mit einer zentralen Steuervorrichtung verbunden. Insbesondere ist die Stellung des Spülventils durch die zentrale Steuervorrichtung mittels einer Steuerleitung kontrollierbar. Automatisierte Spülvorgänge sind über ein in die zentrale Steuervorrichtung integriertes Zeitmodul programmierbar. Zusätzlich kann eine über einen Temperatursensor gemessene Wassertemperatur an die zentrale Steuervorrichtung übermittelt werden. Abhängig von der gemessenen Temperatur kann die Periode der Spülzyklen angepasst werden. Zusätzlich kann ein Durchflusssensor vorgesehen sein, der die Durchflussmenge bestimmt, aufgrund der die zentrale Steuervorrichtung entscheidet, ob ein Spülvorgang notwendig ist. Eine Leckage kann über einen Drucksensor detektiert werden. Die zentrale Steuervorrichtung sperrt daraufhin das Wassersystem von dem öffentlichen Wasserversorgungsnetz ab und entleert das System, indem das Spülventil in der Offenstellung gehalten wird.The previously known flushing device is connected to a drinking and service water system which has a connection to the public water supply network, for example in the basement of a building. Several supply lines for supplying various water consumers within the building are fed with fresh water via this connection. If water is not drawn by a consumer, stale water in the supply lines can be replaced by opening a flush valve and fresh water flowing in from the water supply network. Such an exchange of stale water is commonly referred to as a flushing or flushing process. The water flowing out of the water system via the flush valve is diverted into a sewer line. The flushing valve is provided at one end of the supply line or supply lines and is connected in terms of control to a central control device. In particular, the position of the flush valve can be controlled by the central control device by means of a control line. Automated flushing processes can be programmed using a time module integrated in the central control device. In addition, a water temperature measured by a temperature sensor can be transmitted to the central control device. The period of the wash cycles can be adjusted depending on the measured temperature. In addition, a flow sensor can be provided that measures the flow rate determined on the basis of which the central control device decides whether a flushing process is necessary. A leak can be detected using a pressure sensor. The central control device then shuts off the water system from the public water supply network and empties the system by keeping the flush valve in the open position.

Die DE 20 2008 002 822 U1 offenbart eine Spülvorrichtung mit den oberbegrifflichen Merkmalen von Anspruch 1 und kann auch zu Anspruch 7 als gattungsgemäß angesehen werden.The DE 20 2008 002 822 U1 discloses a flushing device with the generic features of claim 1 and can also be regarded as generic to claim 7.

Bleibt eine Trinkwasserleitung über einen längeren Zeitraum ungenutzt, gleicht sich die Temperatur des darin befindlichen stehenden Wassers an die Umgebungstemperatur an. Ein thermisches Gleichgewicht zwischen der Umgebung und der Trinkwasserleitung stellt sich ein. Je nach Installationsweise liegt die für die Trinkwasserleitung relevante Umgebungstemperatur deutlich über der Zimmertemperatur, wobei gerade in diesem Bereich die Bildung von Keimen wie Legionellen begünstigt ist. Ein Spülen der Trinkwasserleitung ist dann im Hinblick auf die Trinkwasserhygiene geboten.If a drinking water pipe remains unused for a longer period of time, the temperature of the standing water in it adjusts to the ambient temperature. A thermal equilibrium is established between the environment and the drinking water pipe. Depending on the type of installation, the relevant ambient temperature for the drinking water pipe is well above room temperature, and it is precisely in this area that the formation of germs such as legionella is favored. Rinsing the drinking water line is then necessary with a view to drinking water hygiene.

Der vorbekannte Stand der Technik bietet Raum zur Verbesserung hinsichtlich der Spüleffizienz.The prior art provides room for improvement in terms of flushing efficiency.

Eine Aufgabe der vorliegenden Erfindung ist es daher, eine Spülvorrichtung anzugeben, die ein effizientes Spülen ermöglicht und mit der sich die hygienischen Anforderungen an ein Trinkwassersystem erfüllen lassen.It is therefore an object of the present invention to provide a flushing device that enables efficient flushing and with which the hygienic requirements for a drinking water system can be met.

Zur Lösung dieser Aufgabenstellung gibt die vorliegende Erfindung eine Spülvorrichtung mit den Merkmalen von Anspruch 1 an.To solve this problem, the present invention specifies a flushing device with the features of claim 1.

Die Steuerungsvorrichtung der erfindungsgemäßen Spülvorrichtung ist zum zeitabhängigen und/oder wassertemperaturabhängigen und/oder wasserverbrauchsabhängigen Spülen angepasst eingerichtet. Wie aus DE 20 2008 002 822 U1 bekannt, kann dies durch ein Zeitmodul, welches der Steuerungsvorrichtung Spülvorgänge zu bestimmten Zeiten oder Zeitabständen vorgibt, und/oder Messen der Wassertemperatur in der Wasserleitung und/oder Messen einer Durchflussmenge durch die Wasserleitung verwirklicht sein, wobei die gemessenen Werte für gewöhnlich in der Steuerungsvorrichtung ausgewertet und in die Steuerung des Spülens mit einfließen. Das Spülventil ist in der Regel mittels eines Stellmotors stellbar, der mit der Steuerleitung gekoppelt ist.The control device of the flushing device according to the invention is adapted for time-dependent and / or water-temperature-dependent and / or water-consumption-dependent flushing. How out DE 20 2008 002 822 U1 known, this can be realized by a time module which specifies flushing processes for the control device at certain times or intervals, and / or measuring the water temperature in the water pipe and / or measuring a flow rate through the water pipe, the measured values usually being evaluated in the control device and flow into the control of the flushing. The flushing valve can usually be adjusted by means of a servomotor which is coupled to the control line.

Die erfindungsgemäße Spülvorrichtung ist darüber hinaus zur wasserdruckabhängigen Steuerung des Spülens angepasst eingerichtet. Als Steuerung des Spülens im Sinne der vorliegenden Erfindung wird insbesondere das Öffnen und Schließen des Spülventils verstanden. Aber auch eine Entscheidung darüber, das Spülventil unter bestimmten Umständen nicht zu öffnen bzw. zu sperren, ist in der Regel als Steuerung im Sinne der Erfindung anzusehen. Vorzugsweise ist ein Mittel vorgesehen, das bei bestimmten Wasserdruckverhältnissen im System verhindert, dass Wasser aus dem System über das Spülventil abfließt, auch wenn sich dieses öffnet.The flushing device according to the invention is also adapted to the water pressure-dependent control of the flushing. Controlling the flushing in the context of the present invention is understood to mean, in particular, the opening and closing of the flushing valve. However, a decision about not opening or blocking the flushing valve under certain circumstances is generally to be regarded as a control in the sense of the invention. A means is preferably provided which, under certain water pressure conditions in the system, prevents water from flowing out of the system via the flushing valve, even if it opens.

Somit kann ein Trink- und Brauchwassersystem mit Hilfe der erfindungsgemäßen Spülvorrichtung möglichst effizient gespült werden. Bei der erfindungsgemäßen Spülvorrichtung wird ein Spülen unterbleiben, wenn sich ein Zapfvorgang eines Verbrauchers durch eine Veränderung des Wasserdrucks im System bemerkbar macht. Eine Schwankung des Wasserdrucks durch ein Spülen während des Verbrauchs, was ggf. zu einem Komfortverlust am Verbraucher führt, kann damit vermieden werden.Thus, a drinking and service water system can be flushed as efficiently as possible with the aid of the flushing device according to the invention. In the flushing device according to the invention, flushing is omitted if a consumer's tapping process becomes noticeable through a change in the water pressure in the system. A fluctuation in the water pressure due to flushing during consumption, which may lead to a loss of comfort for the consumer, can thus be avoided.

Nach der vorliegenden Erfindung weist die Steuerungsvorrichtung, ein mechanisches, hydraulisches und/oder elektronisches Steuerungselement auf und steuert das Spülen derart, dass das Spülen unterbleibt, wenn das Steuerungselement einen abgesenkten Wasserdruck des Wassersystems wahrnimmt. Das Steuerungselement beinhaltet für gewöhnlich ein Element, das eine Position oder einen Zustand in Abhängigkeit des Drucks verändert oder den Druck quantitativ misst. Als abgesenkter Wasserdruck ist in der Regel ein Wasserdruck zu verstehen, der niedriger ist als der Wasserdruck bei an die Wasserversorgung angeschlossenem Wassersystem und geschlossenen Verbraucherventilen sowie geschlossenem Spülventil; das heißt bei in dem angeschlossenen Wassersystem stehendem Wasser. Gewisse Druckschwankungen, die beispielsweise durch kleinere Leckagen entstehen, führen für gewöhnlich zu keiner nennenswerten Absenkung des Wasserdrucks. In der Regel ist daher unter einem abgesenkten Wasserdruck des Wassersystems ein solcher, durch einen Zapfvorgang eines Verbrauchers verursachter abgesenkter Wasserdruck zu verstehen, der eine ausreichende Versorgung anderer Entnahmestellen nicht mehr gewährleistet. Je nach betrachteter Entnahmestelle ist der Absolutwert für einen abgesenkten Druck unterschiedlich hoch. Üblicherweise beträgt er 2bar, 1 bar oder 0,5 bar. Für den in Rede stehenden Verbraucher sollte der Druck nicht unter den Mindestfließdruck fallen, was als Kriterium für das Aussetzen des Spülens angesehen werden kann.According to the present invention, the control device has a mechanical, hydraulic and / or electronic control element and controls the flushing in such a way that flushing is omitted when the control element perceives a reduced water pressure in the water system. The control element usually includes an element that changes a position or a state depending on the pressure or quantitatively measures the pressure. As a rule, a water pressure that is lower than the water pressure with the water system connected to the water supply and closed consumer valves and closed flush valve is to be understood as a lowered water pressure; that is, with standing water in the connected water system. Certain pressure fluctuations, for example caused by minor leaks, usually do not lead to a noticeable drop in water pressure. As a rule, therefore, a reduced water pressure of the water system is to be understood as such a reduced water pressure caused by a tapping process by a consumer, which no longer ensures adequate supply to other extraction points. The absolute value for a lowered pressure is different depending on the extraction point considered. Usually it is 2 bar, 1 bar or 0.5 bar. For the consumer in question, the pressure should not fall below the minimum flow pressure, which can be viewed as a criterion for suspending flushing.

Die Spülvorrichtung nach dieser Erfindung eignet sich insbesondere für den Einsatz in Laboratorien und Fertigungsbetrieben, in denen Personen mit verspritzenden, ätzenden oder heißen Chemikalien in Berührung kommen können und sich mit Hilfe einer Notdusche reinigen können. Denn so kann verhindert werden, dass während eines Notfalls und dem Betrieb der Notdusche zusätzlich ein Spülvorgang ausgelöst wird, was zu einer Unterversorgung der Notdusche führen würde.The flushing device according to this invention is particularly suitable for use in laboratories and manufacturing plants in which people can come into contact with splashing, caustic or hot chemicals and can clean themselves with the aid of a safety shower. In this way, it can be prevented that an additional flushing process is triggered during an emergency and the operation of the safety shower, which would lead to an undersupply of the safety shower.

Nach einer bevorzugten Weiterbildung der vorliegenden Erfindung weist die Spülvorrichtung ein dem Spülventil in Strömungsrichtung vorgelagertes mechanisch vorgespanntes Rückschlagventil als Steuerungselement auf, das in Richtung des Spülventils öffnet. Das Rückschlagventil ist in der Regel derart vorgespannt, dass es bei einem abgesenkten Wasserdruck des Wassersystems in einer Geschlossen-Stellung verbleibt, so dass Wasser aus dem Wassersystem das Spülventil nicht erreicht. So kann auf einfache Art- und Weise gewährleistet werden, dass bei einem abgesenkten Druck des Wassersystems nicht gespült wird.According to a preferred development of the present invention, the flushing device has a mechanically pretensioned check valve upstream of the flushing valve in the flow direction as a control element, which opens in the direction of the flushing valve. The non-return valve is usually preloaded in such a way that it remains in a closed position when the water pressure of the water system is reduced, so that water from the water system does not reach the flush valve. In this way it can be ensured in a simple manner that flushing does not take place when the pressure of the water system is reduced.

Nach einer weiteren bevorzugten Weiterbildung der vorliegenden Erfindung weist die Spülvorrichtung einen dem Spülventil in Strömungsrichtung vorgelagerten Drucksensor als Steuerungselement und eine mit dem Drucksensor kommunizierende und steuerungsmäßig mit dem Spülventil verbundene Steuerungseinheit auf, wobei die Steuerungseinheit derart eingerichtet ist, dass das Spülventil aufgrund eines Signals des Drucksensors spannungsfrei geschaltet oder gesperrt wird. Die Steuerungseinheit ist dabei vorzugsweise Teil der Steuerungsvorrichtung. Bevorzugt ist der Drucksensor als ein Druckschalter oder ein den Wasserdruck quantitativ erfassendes Druckmessgerät ausgebildet.According to a further preferred development of the present invention, the flushing device has a pressure sensor upstream of the flushing valve as a control element and a control unit that communicates with the pressure sensor and is connected to the flushing valve in terms of control, the control unit being set up in such a way that the flushing valve is activated on the basis of a signal from the pressure sensor is switched off or blocked. The control unit is preferably part of the control device. The pressure sensor is preferably designed as a pressure switch or a pressure measuring device that quantitatively detects the water pressure.

Die Steuerungseinheit beinhaltet für gewöhnlich eine Logik zur Auswertung von Signalen und Ausgabe von Steuerungsbefehlen. Druckschalter sind mechanische oder elektronische Schalter, die durch Druckänderung eines gasförmigen oder flüssigen Mediums betätigt werden. Die verbreitetste Umsetzung eines mechanischen Druckschalters hat eine Metallmembran, die bei einer bestimmten Auslenkung einen Schaltkontakt schließt und deren Auslenkung druckabhängig ist. Bei Schließen des Schaltkontaktes wird ein Signal an die Steuerungseinheit gesendet. Das Spülventil wird, wie aus dem Stand der Technik bekannt, durch die Steuerungsvorrichtung mittels einer Steuerleitung von der Geschlossen-Stellung in die Offen-Stellung gestellt. Die Steuerleitung kann durch die Steuerungsvorrichtung von der Stromversorgung vorübergehend getrennt werden. Zur Sperrung des Spülventils ist auch ein von der Steuerungseinheit kontrollierbares mechanisches Blockadeelement denkbar, das die Position des Spülventils in der geschlossenen Stellung fixiert.The control unit usually contains logic for evaluating signals and issuing control commands. Pressure switches are mechanical or electronic switches that are actuated by changing the pressure of a gaseous or liquid medium. The most common implementation of a mechanical pressure switch has a metal membrane that closes a switch contact when a certain deflection occurs and the deflection is pressure-dependent. When the switching contact closes, a signal is sent to the control unit. As is known from the prior art, the flushing valve is moved from the closed position to the open position by the control device by means of a control line posed. The control device can temporarily disconnect the control line from the power supply. To block the flush valve, a mechanical blocking element that can be controlled by the control unit is also conceivable, which fixes the position of the flush valve in the closed position.

Weiter bevorzugt weist die Spülvorrichtung nach der vorliegenden Erfindung sowohl einen Druckschalter als auch ein Druckmessgerät auf.More preferably, the flushing device according to the present invention has both a pressure switch and a pressure measuring device.

Nach einer weiteren bevorzugten Weiterbildung der vorliegenden Erfindung weist die Spülvorrichtung Mittel zur Kopplung der Stellung eines einem Verbraucher zugeordneten Ventils mit der Stellung des Spülventils auf, wobei die Kopplung derart ausgebildet ist, dass ein Öffnen des dem Verbraucher zugeordneten Ventils ein Schließen des Spülventils bewirkt. Die Kopplung ist bevorzugt elektronisch ausgebildet. Denkbar ist aber auch eine mechanische Kopplung.According to a further preferred development of the present invention, the flushing device has means for coupling the position of a valve assigned to a consumer to the position of the flushing valve, the coupling being designed such that opening the valve assigned to the consumer causes the flushing valve to close. The coupling is preferably designed electronically. However, a mechanical coupling is also conceivable.

So kann einer Unterversorgung einer Notdusche zusätzlich entgegengewirkt werden.In this way, an undersupply of an emergency shower can be counteracted.

In einem nebengeordneten Aspekt gibt die vorliegende Erfindung ein Trink- und Brauchwassersystem mit einem Anschluss an das öffentliche Wasserversorgungsnetz, einer zu mindestens einem Verbraucher führenden Wasserleitung und einer Spülvorrichtung nach Anspruch 1 an, wobei das Spülventil der Spülvorrichtung dem Verbraucher in Strömungsrichtung nachgelagert ist. In der Regel ist das Trink- und Brauchwassersystem in einem Wohn-, Industrie- oder Bürogebäude, Krankenhaus oder Hotel vorgesehen. Insbesondere kann das erfindungsgemäße Trink- und Brauchwassersystem in einem Labor oder einem Fertigungsbetrieb vorgesehen sein.In a secondary aspect, the present invention specifies a drinking and service water system with a connection to the public water supply network, a water line leading to at least one consumer and a flushing device according to claim 1, wherein the flushing valve of the flushing device is downstream of the consumer in the direction of flow. As a rule, the drinking and service water system is provided in a residential, industrial or office building, hospital or hotel. In particular, the drinking and service water system according to the invention can be provided in a laboratory or a manufacturing plant.

Die Steuerungsvorrichtung des Trink- und Brauchwassersystems nach der vorliegenden Erfindung ist derart eingerichtet, dass bei einem abgesenkten Wasserdruck in der Wasserleitung das Spülen unterbleibt. Weiter bevorzugt ist das Trink- und Brauchwassersystem nach der vorliegenden Erfindung nach einer in Verbindung mit der Spülvorrichtung diskutierten Weiterbildung oder mehreren dieser Weiterbildungen ausgebildet.The control device of the drinking and service water system according to the present invention is set up in such a way that flushing does not take place when the water pressure in the water line is reduced. Furthermore, the drinking and service water system according to the present invention is preferably designed according to one or more of these developments discussed in connection with the flushing device.

Weitere Einzelheiten und Vorteile der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen der Erfindung in Verbindung mit der Zeichnung. In dieser zeigen:

  • Fig. 1a eine Prinzipzeichnung eines Ausführungsbeispiels eines Trink- und Brauchwassersystems mit einer ein mechanisch vorgespanntes Rückschlagventil aufweisenden Spülvorrichtung mit einem Detail D, das in Figur 1b als Vergrößerung wiedergegeben ist,
  • Fig. 1b vergrößerte Darstellung des Details D aus Fig. 1a,
  • Fig. 2 eine Prinzipzeichnung eines Ausführungsbeispiels eines Trink- und Brauchwassersystems mit einer einen Druckschalter aufweisenden Spülvorrichtung und
  • Fig. 3 eine Prinzipzeichnung eines Ausführungsbeispiels eines Trink- und Brauchwassersystems mit einer ein Druckmessgerät aufweisenden Spülvorrichtung.
Further details and advantages of the present invention emerge from the following description of exemplary embodiments of the invention in conjunction with the drawing. In this show:
  • Fig. 1a a schematic drawing of an exemplary embodiment of a drinking and service water system with a flushing device having a mechanically preloaded check valve with a detail D, which is shown in FIG Figure 1b is shown as an enlargement,
  • Figure 1b enlarged view of the detail D. Fig. 1a ,
  • Fig. 2 a principle drawing of an embodiment of a drinking and service water system with a flushing device having a pressure switch and
  • Fig. 3 a principle drawing of an embodiment of a drinking and service water system with a flushing device having a pressure measuring device.

Die Fig. 1a zeigt ein Trink- und Brauchwassersystem mit einem Anschluss 2 an das öffentliche Wasserversorgungsnetz, über den eine Versorgungsleitung 4 mit frischem Wasser, vorzugsweise Kaltwasser, gespeist wird. An die Versorgungsleitung 4 sind zwei Verbraucher angeschlossen, die in den Ausführungsbeispielen als Notdusche 6a für den gesamten Körper und Augendusche 6b verwirklicht sind. Dem in Strömungsrichtung letzten Verbraucher, d. h. der Augendusche 6b in Strömungsrichtung nachgelagert ist ein Spülventil 8 angeordnet, mit Hilfe dessen in der Versorgungsleitung 4 stehendes Wasser abgelassen werden kann und frisches Wasser über den Anschluss 2 nachfließt. Das Spülventil leitet über einen freien Ablauf 10 in eine Abwasserleitung ab. Der freie Ablauf 10 beinhaltet eine Fallstrecke, die mit der Umgebungsatmosphäre in direkter Verbindung steht, so dass die gesetzlichen Anforderungen zur Trennung von Trinkwasser und Abwasser bzw. Brauchwasser erfüllt sind.The Fig. 1a shows a drinking and service water system with a connection 2 to the public water supply network, via which a supply line 4 is fed with fresh water, preferably cold water. Two consumers are connected to the supply line 4, which in the exemplary embodiments are implemented as an emergency shower 6a for the entire body and an eye shower 6b. A rinsing valve 8 is arranged downstream of the last consumer in the flow direction, ie the eye shower 6b in the flow direction, with the aid of which water standing in the supply line 4 can be drained and fresh water flows in via the connection 2. The flush valve leads off via a free drain 10 into a sewer line. The free drain 10 includes a fall section that is in direct connection with the ambient atmosphere, so that the legal requirements for the separation of drinking water and waste water or service water are met.

Das Spülventil 8 ist mit einer Steuerungseinheit 22 über eine Steuerleitung 24 steuerungsmäßig gekoppelt, wobei in die Steuerungseinheit 22 ein Zeitmodul integriert ist, das die Steuerungseinheit 22 zu bestimmten Zeiten dazu veranlasst das Spülventil 8 mittels einem mit der Steuerleitung 24 gekoppelten Stellmotors 28 für einen Spülvorgang zu öffnen.The flushing valve 8 is coupled to a control unit 22 via a control line 24, with a time module being integrated into the control unit 22, which causes the control unit 22 to close the flushing valve 8 for a flushing process by means of a servomotor 28 coupled to the control line 24 at certain times to open.

Ein Sensor 30 ist in der Versorgungsleitung 4 vorgesehen und zur Signalübertragung mit der Steuerungseinheit 22 verbunden. Der Sensor 30 kann ein Temperatur- oder Durchflussmengensensor sein. Es können selbstverständlich auch mehrere Sensoren, insbesondere mindestens ein Wassertemperatur- und mindestens ein Durchflussmengensensor vorgesehen sein. Die gemessenen Werte des Sensors bzw. der Sensoren werden in der Steuerungseinheit 22 ausgewertet und fließen in die Steuerung des Spülventils 8 mit ein. So können beispielsweise bei einem gemessenen Temperaturanstieg die Zeitabstände zwischen den von dem Zeitmodul vorgegebenen Spülvorgängen verkürzt oder bei einem gemessenen Anstieg der Durchflussmenge vergrößert werden.A sensor 30 is provided in the supply line 4 and is connected to the control unit 22 for signal transmission. The sensor 30 can be a temperature or flow rate sensor. A plurality of sensors, in particular at least one water temperature sensor and at least one flow rate sensor, can of course also be provided. The measured values of the sensor or the sensors are evaluated in the control unit 22 and flow into the control of the flushing valve 8. For example, in the case of a measured temperature rise, the time intervals between the time modules specified flushing processes can be shortened or increased in the event of a measured increase in the flow rate.

In dem dem Spülventil 8 in Strömungsrichtung vorgelagerten Leitungsabschnitt ist ein mechanisch vorgespanntes Rückschlagventil 12 angeordnet. Das Rückschlagventil 12 ist in der vergrößerten Darstellung des umkreisten Details D des Trink- und Brauchwassersystems in Fig. 1b zu erkennen, in der ein Ventilsitz 14 und ein federvorgespannter Ventilkörper 16 schematisch dargestellt sind. Die Federvorspannung ist derart eingestellt, dass bei geöffneter Notdusche 6a oder geöffneter Augendusche 6b und abgesenktem Wasserdruck in der Versorgungsleitung 4 der Ventilkörper 16 an dem Ventilsitz 14 anliegt. In diesem Fall findet kein Spülvorgang statt, selbst wenn sich das Spülventil 8 durch entsprechende Steuerung der Steuerungseinheit 22 öffnen sollte. Ist der Anschluss 2 geöffnet und die Notdusche 6a sowie die Augendusche 6b geschlossen, wird der Ventilkörper 16 von dem Wasserdruck in der Versorgungsleitung 4 entgegen der Federkraft in eine Offenstellung gedrückt, sodass durch Öffnen des Spülventils 8 durch entsprechende Steuerung der Steuerungseinheit 22 ein Austausch von in der Versorgungsleitung 4 stehendem Wasser möglich ist.A mechanically preloaded check valve 12 is arranged in the line section upstream of the flushing valve 8 in the flow direction. The check valve 12 is shown in the enlarged illustration of the circled detail D of the drinking and service water system in Figure 1b can be seen in which a valve seat 14 and a spring-loaded valve body 16 are shown schematically. The spring preload is set in such a way that when the emergency shower 6a or the eye shower 6b is open and the water pressure in the supply line 4 is reduced, the valve body 16 rests against the valve seat 14. In this case, no flushing process takes place even if the flushing valve 8 should open by appropriate control of the control unit 22. If the connection 2 is open and the emergency shower 6a and the eye shower 6b are closed, the valve body 16 is pressed into an open position by the water pressure in the supply line 4 against the spring force, so that by opening the flushing valve 8 by appropriate control of the control unit 22 an exchange of in the supply line 4 standing water is possible.

Mit Bezugszeichen 18 ist ein Absperrventil für Wartungszwecke gekennzeichnet, mit dem der dem Ventil 18 nachgelagerte Bereich drucklos geschaltet werden kann.A shut-off valve for maintenance purposes, with which the area downstream of the valve 18 can be depressurized, is identified by reference numeral 18.

Die Fig. 2 zeigt ein weiteres Ausführungsbeispiel eines Trink- und Brauchwassersystems nach der vorliegenden Erfindung. Gleiche Bauteile wie in Fig. 1 sind dabei mit denselben Bezugszeichen gekennzeichnet. Anstelle des mechanisch vorgespannten Rückschlagventils 12 ist ein mechanischer Druckschalter 20 vorgesehen. Dieser ist in einem Bereich zwischen dem in Strömungsrichtung letzten Verbraucher, d. h. der Augendusche 6b, und dem Spülventil 8 angeordnet und ist dem Wasserdruck in diesem Bereich ausgesetzt. Ein abgesenkter Wasserdruck in diesem Bereich wirkt sich dabei auf die Auslenkung einer z.B. metallischen Membran innerhalb des Druckschalters 20 aus, die dadurch einen elektrischen Kontakt in dem Druckschalter 20 schließt, woraufhin ein Signal an die Steuerungseinheit 22 gesendet wird. Die über die Steuerleitung 24 steuerungsmäßig mit dem Spülventil 8 verbundene Steuerungseinheit 22 steuert das Spülventil 8 nach Erhalt des Signals in die geschlossene Stellung und/oder trennt die Steuerleitung 24 von der Stromversorgung, um das Spülventil 8 in der geschlossenen Stellung zu belassen oder sperrt das Spülventil 8 in der geschlossenen Stellung beispielsweise mit Hilfe eines mechanischen Blockadeelements.The Fig. 2 shows a further embodiment of a drinking and service water system according to the present invention. Same components as in Fig. 1 are marked with the same reference numerals. Instead of the mechanically preloaded check valve 12, a mechanical pressure switch 20 is provided. This is arranged in an area between the last consumer in the flow direction, ie the eye shower 6b, and the flushing valve 8 and is exposed to the water pressure in this area. A reduced water pressure in this area affects the deflection of, for example, a metallic membrane within the pressure switch 20, which thereby closes an electrical contact in the pressure switch 20, whereupon a signal is sent to the control unit 22. The control unit 22, which is connected to the flushing valve 8 for control purposes via the control line 24, controls the flushing valve 8 into the closed position after receiving the signal and / or disconnects the control line 24 from the power supply in order to keep the flushing valve 8 in the closed position or blocks the flushing valve 8 in the closed position, for example with the help of a mechanical blocking element.

Die Fig. 3 zeigt ein weiteres Ausführungsbeispiel eines Trink- und Brauchwassersystems nach der vorliegenden Erfindung. Gleiche Bauteile wie in den vorherigen Figuren sind wiederum mit denselben Bezugszeichen gekennzeichnet. Das Ausführungsbeispiel nach Fig. 3 unterscheidet sich von dem Ausführungsbeispiel nach Fig. 2 darin, dass an der Stelle, an der in Fig. 2 der Druckschalter 20 vorgesehen ist, ein Druckmessgerät 26 vorgesehen ist. Das Druckmessgerät erfasst den Druck in diesem Bereich quantitativ und sendet die Messsignale an die Steuerungseinheit 22. Dem Fachmann sind unterschiedliche Druckmessgeräte bekannt, die sich zur Messung eines Wasserdrucks in einer Leitung eignen und von denen mindestens eines in dem Ausführungsbeispiel zum Einsatz kommt. Die Steuerungseinheit 22 wertet die Messsignale mit Hilfe einer integrierten Logik aus, vergleicht in der Regel die Messgrößen mit einem voreingestellten Referenzwert und verbringt das Spülventil 8 bei einem abgesenkten Druck in die geschlossene Stellung und/oder trennt die Steuerleitung 24 von der Stromversorgung, um das Spülventil 8 in der geschlossenen Stellung zu belassen oder sperrt das Spülventil 8 in der geschlossenen Stellung beispielsweise mit Hilfe eines mechanischen Blockadeelements.The Fig. 3 shows a further embodiment of a drinking and service water system according to the present invention. The same components as in the previous figures are again included the same reference numerals. The embodiment according to Fig. 3 differs from the embodiment according to Fig. 2 in that at the point where in Fig. 2 the pressure switch 20 is provided, a pressure measuring device 26 is provided. The pressure measuring device records the pressure in this area quantitatively and sends the measurement signals to the control unit 22. Various pressure measuring devices are known to those skilled in the art which are suitable for measuring a water pressure in a line and of which at least one is used in the exemplary embodiment. The control unit 22 evaluates the measurement signals with the help of an integrated logic, usually compares the measurement variables with a preset reference value and moves the flush valve 8 to the closed position at a reduced pressure and / or disconnects the control line 24 from the power supply to the flush valve 8 to be left in the closed position or locks the flush valve 8 in the closed position, for example with the aid of a mechanical blocking element.

BezugszeichenlisteList of reference symbols

22
Anschluss an das öffentliche WasserversorgungsnetzConnection to the public water supply network
44th
Versorgungsleitungsupply line
6a6a
NotduscheEmergency shower
6b6b
AugenduscheEye wash
88th
SpülventilFlush valve
1010
freier Ablauffree flow
1212
Rückschlagventilcheck valve
1414th
VentilsitzValve seat
1616
federvorgespannter Ventilkörperspring-loaded valve body
1818th
AbsperrventilShut-off valve
2020th
DruckschalterPressure switch
2222nd
SteuerungseinheitControl unit
2424
SteuerleitungControl line
2626th
DruckmessgerätPressure gauge
2828
StellmotorServomotor
3030th
Sensorsensor

Claims (8)

  1. Flushing device that is connectable to a potable water system for flushing at least one water line (4), comprising
    a flushing valve (8),
    a control line (24) that is connected to the flushing valve (8) in a controlling manner and
    a control device (22) that controls a position of the flushing valve (8) via the control line (24) in a time-dependent manner and/or in a manner depending on a water temperature and/or in a manner depending on a water consumption, wherein said flushing device is adapted to control the flushing process in a manner depending on the water pressure,
    characterized in that the control device (22) comprises a mechanical, hydraulic and/or electronic control element (12, 20, 26) and controls said flushing process such that flushing does not occur when said control element (12, 20, 26) perceives a drop in the water pressure in the water system.
  2. Flushing device according to claim 1, characterized by a mechanically preloaded check valve (12) as a control element that is disposed in the direction of flow upstream of said flushing valve (8) and that opens in the direction of said flushing valve (8).
  3. Flushing device according to claim 1 or 2, characterized by a pressure sensor (20, 26) as a control element, disposed in the direction of flow upstream of said flushing valve (8), wherein the control device (22) communicates with said pressure sensor (20, 26), is connected to said flushing valve (8) for control purposes and is adapted in such a way that said flushing valve (8) is switched de-energized or blocked based on a signal of said pressure sensor (20, 26).
  4. Flushing device according to claim 3, characterized in that said pressure sensor (20, 26) is formed as a pressure switch (20).
  5. Flushing device according to claim 3, characterized in that said pressure sensor (20, 26) is formed as a pressure measuring device (26).
  6. Flushing device according to one of the preceding claims, characterized by means for coupling the position of a valve (6a, 6b) associated with a consumer with the position of said flushing valve (8) such that opening said valve (6a, 6b) associated with the consumer causes said flushing valve (8) to close.
  7. Potable and tap water system with a connection (2) to the public water supply mains, a water line (4) leading to at least one consumer (6a, 6b), and a flushing device comprising a flushing valve (8) disposed in the direction of flow downstream of said consumer (6a, 6b), a control line (24) that is connected to the flushing valve (8) in a controlling manner and a control device (22) that controls a position of the flushing valve (8) via the control line (24) in a time-dependent manner and/or in a manner depending on a water temperature and/or in a manner depending on a water consumption, wherein said flushing device is adapted to control the flushing process in a manner depending on the water pressure,
    characterized in that the control device is adapted such that flushing does not take place when the water pressure in said water line (4) is low.
  8. Potable and tap water system according to claim 7, characterized by a further development according to one or several of the claims 2 to 6.
EP19215742.8A 2018-12-13 2019-12-12 Flushing device and drinking water and/or domestic water system with such a flushing device Active EP3666984B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202018005791.6U DE202018005791U1 (en) 2018-12-13 2018-12-13 Flushing device

Publications (2)

Publication Number Publication Date
EP3666984A1 EP3666984A1 (en) 2020-06-17
EP3666984B1 true EP3666984B1 (en) 2020-11-18

Family

ID=68916213

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19215742.8A Active EP3666984B1 (en) 2018-12-13 2019-12-12 Flushing device and drinking water and/or domestic water system with such a flushing device

Country Status (5)

Country Link
US (1) US11739511B2 (en)
EP (1) EP3666984B1 (en)
CA (1) CA3064376C (en)
DE (1) DE202018005791U1 (en)
DK (1) DK3666984T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201816560D0 (en) * 2018-10-10 2018-11-28 Belkadhi Mohamed Ferid Water line purging system for preventing water freezing and flood
DE102019201263A1 (en) * 2019-01-31 2020-08-06 Gebrüder Kemper Gmbh + Co. Kg Metallwerke Drinking and process water system and method for flushing the same

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3556137A (en) * 1969-05-15 1971-01-19 Sloan Valve Co Control valves
US5136983A (en) * 1990-09-10 1992-08-11 Ziggity Systems, Inc. Flush apparatus for watering systems
US5441070A (en) * 1993-11-10 1995-08-15 Thompson; Gary E. Fluid management system
CA2570161C (en) 2004-06-09 2013-07-16 Thomas M. Taylor Automatic stagnant water flushing system
US7240852B2 (en) * 2004-06-09 2007-07-10 Taylor Thomas M Drinking fountain with automatic stagnant water flushing system
US7240853B2 (en) * 2004-06-09 2007-07-10 Taylor Thomas M Emergency shower with automatic stagnant water flushing system
US7240854B2 (en) * 2004-06-09 2007-07-10 Taylor Thomas M Eyewash with automatic stagnant water flushing system
DE202008002822U1 (en) 2008-02-28 2009-07-09 Gebr.Kemper Gmbh + Co.Kg Metallwerke Drinking and service water supply device of a building and control device for such
DE102011013955B4 (en) 2011-03-14 2018-12-27 Viega Technology Gmbh & Co. Kg Method for automatic rinsing
IL216497A (en) * 2011-11-21 2016-07-31 Yona Senesh Apparatus and method for distributing a liquid through a network of conduits
US10011978B1 (en) * 2015-07-28 2018-07-03 Robert A Mahon Dead-end water-line flushing system
DE102015015649B4 (en) 2015-12-02 2017-10-26 Bekim Osmanaj LINE WASHING DEVICE AND LINE WASHING SYSTEM
DE102016103833A1 (en) * 2016-03-03 2017-09-07 Uponor Innovation Ab System and method for flushing a drinking water installation
WO2018132775A1 (en) * 2017-01-14 2018-07-19 Larach Mario Smart monitoring unit apparatus for upstream and downstream pressure and flow
US10564653B2 (en) * 2018-04-13 2020-02-18 Mueller International, Llc Flushing verification and management system
US11053149B2 (en) * 2018-04-30 2021-07-06 Seccua Holding AG Water hygiene improving method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
US11739511B2 (en) 2023-08-29
CA3064376C (en) 2022-07-12
DK3666984T3 (en) 2021-02-08
US20200190781A1 (en) 2020-06-18
EP3666984A1 (en) 2020-06-17
CA3064376A1 (en) 2020-06-13
DE202018005791U1 (en) 2020-03-19

Similar Documents

Publication Publication Date Title
DE69218778T2 (en) Water supply system
DE102014208261B4 (en) Drinking and industrial water system of a building and method for controlling the drinking and industrial water system
EP3337931B1 (en) Device and method for automatic supply pipe flushing with multiple valve
EP3666984B1 (en) Flushing device and drinking water and/or domestic water system with such a flushing device
DE102013001584A1 (en) sanitary arrangement
DE102019201263A1 (en) Drinking and process water system and method for flushing the same
EP2700756A1 (en) Device for hygienic flushing in a water installation and water installation comprising such a device
DE102010055176A1 (en) Drinking water supply system of a building, method for operating the same and control device thereof
EP2895659A1 (en) Assembly for carrying out the hygienic flushing of a water installation
DE19706564A1 (en) Leak detector and prevention arrangement for domestic water supply system
EP3660234A1 (en) Drinking and domestic water system
DE3622139A1 (en) Water supply installation
EP2993271B1 (en) Control device and drinking water and/or domestic water system with such a control device
EP3637216A1 (en) Arrangement and method for regulating the output flow pressure of a water fitting
EP1431466A2 (en) Compact assembly for fixtures and piping for water supply
DE102019127158A1 (en) Water supply system and method for operating this water supply system
AT519481B1 (en) Terminal sanitary fitting
EP1018063B1 (en) Regulator
DE202012012276U1 (en) Device for cleaning a domestic water pipe and / or for maintaining the water quality
EP2982805B1 (en) Multifunctional interconnection device and uses of same
EP3786603B1 (en) Monitoring of a domestic water installation
EP2660397B1 (en) System for feeding water for fire-extinguisher
EP2885467B2 (en) Potable water installation with lead detection
DE102015015649B4 (en) LINE WASHING DEVICE AND LINE WASHING SYSTEM
AT16285U1 (en) Terminal sanitary fitting with a flushing arrangement

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

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

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20200522

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20200715

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502019000424

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BOVARD AG PATENT- UND MARKENANWAELTE, CH

Ref country code: AT

Ref legal event code: REF

Ref document number: 1335944

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201215

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20210205

REG Reference to a national code

Ref country code: NO

Ref legal event code: T2

Effective date: 20201118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210219

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201118

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210318

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210218

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201118

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210318

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201118

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201118

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201118

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201118

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201118

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201118

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201118

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502019000424

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201118

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20210819

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210118

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201118

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210318

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201118

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20231220

Year of fee payment: 5

Ref country code: NO

Payment date: 20231220

Year of fee payment: 5

Ref country code: NL

Payment date: 20231220

Year of fee payment: 5

Ref country code: LU

Payment date: 20231215

Year of fee payment: 5

Ref country code: DK

Payment date: 20231218

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20231218

Year of fee payment: 5

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20240304

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201118

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20231221

Year of fee payment: 5

Ref country code: CH

Payment date: 20240101

Year of fee payment: 5

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20231212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231212