EP3666984A1 - 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

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Publication number
EP3666984A1
EP3666984A1 EP19215742.8A EP19215742A EP3666984A1 EP 3666984 A1 EP3666984 A1 EP 3666984A1 EP 19215742 A EP19215742 A EP 19215742A EP 3666984 A1 EP3666984 A1 EP 3666984A1
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EP
European Patent Office
Prior art keywords
flushing
water
valve
control
pressure
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Granted
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EP19215742.8A
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German (de)
French (fr)
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EP3666984B1 (en
Inventor
Thomas Spöler
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Gebr Kemper GmbH and Co KG
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Gebr Kemper GmbH and Co KG
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Publication of EP3666984A1 publication Critical patent/EP3666984A1/en
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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 generally 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 generally provided in a building at basement level.
  • the flushing device furthermore has a control line connected to the flushing valve for control purposes and a control device controlling a position of the flushing valve by means of the control line for flushing the water line depending on time and / or water temperature and / or water consumption.
  • the flushing device can be arranged such that the flushing valve is arranged downstream of the consumer in the direction of flow.
  • Such a flushing device is based on the applicant's DE 20 2008 002 822 U1 known.
  • the previously known flushing device is connected to a drinking and process water system, which has a connection to the public water supply network, for example in the basement of a building. Via this connection, several supply lines for the supply of various water consumers within the building are supplied with fresh water. If there is no water withdrawal by a consumer, stale water in the supply lines can be exchanged by opening a flushing valve and supplying fresh water from the water supply network. Such an exchange of stale water is commonly referred to as rinsing or rinsing. The water flowing out of the water system via the flushing valve is drained 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 flushing valve can be checked by the central control device by means of a control line.
  • Automated flushing processes can be programmed via a time module integrated in the central control device.
  • a water temperature measured via a temperature sensor can be transmitted to the central control device. The period of the rinsing cycles can be adjusted depending on the measured temperature.
  • a flow sensor can be provided which 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 isolates the water system from the public water supply network and empties the system by holding the flush valve in the open position.
  • a drinking water pipe remains unused for a longer period of time, the temperature of the water in it will adjust to the ambient temperature.
  • a thermal equilibrium is established between the environment and the drinking water pipe.
  • the ambient temperature relevant for the drinking water pipeline is significantly higher than the room temperature, whereby the formation of germs such as legionella is favored in this area. Flushing the drinking water line is then necessary with a view to drinking water hygiene.
  • the present invention provides a flushing device with the features of claim 1.
  • the control device of the flushing device according to the invention is set up to be 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 rinsing processes at specific times or time 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 rinsing.
  • the flushing valve can generally be set by means of a servomotor which is coupled to the control line.
  • the flushing device is also adapted to control the flushing depending on the water pressure.
  • Controlling the flushing in the sense of the present invention is understood in particular to be the opening and closing of the flushing valve.
  • a decision not to open or block the rinsing valve under certain circumstances can generally also be regarded as a control in the sense of the invention.
  • a means is preferably provided which, in the case of certain water pressure conditions in the system, prevents water from flowing out of the system via the flushing valve, even when it opens.
  • a drinking and process water system can thus be flushed as efficiently as possible with the aid of the flushing device according to the invention.
  • flushing can be omitted if a tapping process of a consumer is noticeable through a change in the water pressure in the system.
  • a fluctuation in the water pressure due to rinsing during consumption, which may result in 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 the flushing does not take place if the control element detects 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 measures the pressure quantitatively.
  • Lowered water pressure is generally understood to mean a water pressure which is lower than the water pressure with the water system connected to the water supply and with closed consumer valves and closed flushing valve; that is, with water in the connected water system. Certain pressure fluctuations, for example caused by minor leaks, do not usually lead to a significant drop in water pressure.
  • a lowered water pressure of the water system is to be understood as a lowered water pressure caused by a tap process by a consumer, which no longer guarantees an adequate supply to other tapping points.
  • the absolute value for a reduced pressure varies. It is usually 2 bar, 1 bar or 0.5 bar.
  • the pressure should not fall below the minimum flow pressure, which can be seen as a criterion for the purging being suspended.
  • the flushing device is particularly suitable for use in laboratories and production plants in which people can come into contact with splashing, caustic or hot chemicals and can clean themselves with the aid of an emergency shower. This is how it can be prevented that an additional rinsing process is triggered during an emergency and the operation of the emergency shower, which would lead to an insufficient supply of the emergency shower.
  • the flushing device has a mechanically pretensioned check valve upstream of the flushing valve as a control element, which opens in the direction of the flushing valve.
  • the check valve is usually biased in such a way that it remains in a closed position when the water pressure in the water system is lowered, so that water from the water system does not reach the flushing valve. In this way, it can be ensured in a simple manner that there is no flushing 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 communicating with the pressure sensor and connected to the flushing valve for control purposes, the control unit being set up in such a way that the flushing valve is based on a signal from the pressure sensor is de-energized 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 outputting 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, which closes a switching contact at a certain deflection and whose deflection is pressure-dependent. When the switch contact closes, a signal is sent to the control unit.
  • the flushing valve is moved from the closed position into the open position by the control device by means of a control line posed.
  • the control line can be temporarily disconnected from the power supply by the control device.
  • a mechanical blocking element that can be controlled by the control unit and that fixes the position of the flushing valve in the closed position is also conceivable.
  • 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 with 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 electronic.
  • a mechanical coupling is also conceivable.
  • the present invention provides a drinking and industrial water system with a connection to the public water supply network, a water pipe leading to at least one consumer and a flushing device according to claim 1, the flushing valve of the flushing device being arranged downstream of the consumer in the direction of flow
  • the drinking and process water system is provided in a residential, industrial or office building, hospital or hotel.
  • the drinking and process water system according to the invention can be provided in a laboratory or a manufacturing plant.
  • the control device of the drinking and industrial water system according to the present invention is preferably set up in such a way that flushing does not occur when the water pressure in the water line is reduced.
  • the drinking and industrial water system according to the present invention is further preferably designed according to one or more of these further developments discussed in connection with the flushing device.
  • the Fig. 1a shows a drinking and industrial 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 direction of flow, ie downstream of the eye shower 6b, by means of which water in the supply line 4 can be drained off and fresh water flows in via the connection 2.
  • the flushing valve drains off into a sewage pipe via a free outlet 10.
  • the free drain 10 includes a drop section that is directly connected to the ambient atmosphere, so that the legal requirements for the separation of drinking water and waste water or industrial water are met.
  • the flushing valve 8 is coupled in terms of control to a control unit 22 via a control line 24, a time module being integrated in the control unit 22, which causes the control unit 22 at certain times to activate the flushing valve 8 for a flushing process by means of a servomotor 28 coupled to the control line 24 to open.
  • a sensor 30 is provided in the supply line 4 and connected to the control unit 22 for signal transmission.
  • Sensor 30 may be a temperature or flow rate sensor.
  • several sensors in particular at least one water temperature sensor and at least one flow rate sensor, can also be provided.
  • the measured values of the sensor or sensors are evaluated in the control unit 22 and flow into the control of the flushing valve 8. For example, in the event of a measured temperature rise, the time intervals between those of the time module predetermined flushing processes can be shortened or increased with a measured increase in the flow rate.
  • a mechanically prestressed check valve 12 is arranged in the line section upstream of the flushing valve 8 in the flow direction.
  • the check valve 12 is in the enlarged view of the circled detail D of the drinking and process water system in Fig. 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 such that when the emergency shower 6a is open or the eye shower 6b is open and the water pressure in the supply line 4 is lowered, the valve body 16 bears 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.
  • 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 against the spring force by the water pressure in the supply line 4, 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 is identified by reference numeral 18, with which the area downstream of the valve 18 can be depressurized.
  • the Fig. 2 shows a further embodiment of a drinking and industrial water system according to the present invention. Same components as in Fig. 1 are identified by 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 lowered water pressure in this area has an effect on 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 connected to the flush valve 8 for control purposes via the control line 24 controls the flush valve 8 after receiving the signal in the closed position and / or disconnects the control line 24 from the power supply in order to leave the flush valve 8 in the closed position or blocks the flush 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 industrial water system according to the present invention.
  • the same components as in the previous figures are again included identified by the same reference numerals.
  • the embodiment according to Fig. 3 differs from the exemplary embodiment 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 quantitatively detects the pressure in this area and sends the measurement signals to the control unit 22.
  • the person skilled in the art is familiar with various pressure measuring devices which are suitable for measuring a water pressure in a line and at least one of which is used in the exemplary embodiment.
  • the control unit 22 evaluates the measurement signals with the aid of an integrated logic, generally compares the measurement variables with a preset reference value and brings the pressure valve 8 into the closed position at a reduced pressure and / or disconnects the control line 24 from the power supply to the flushing valve 8 in the closed position or blocks the flush valve 8 in the closed position, for example with the aid of a mechanical blocking element.

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  • 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)

Abstract

Die vorliegende Erfindung betrifft eine Spülvorrichtung, die zum Spülen mindestens einer Wasserleitung (4) an ein Trinkwassersystem anschließbar ist, aufweisend ein Spülventil (8), eine steuerungsmäßig mit dem Spülventil (8) verbundene Steuerleitung (24) und eine eine Stellung des Spülventils (8) mittels der Steuerleitung (24) kontrollierende Steuerungsvorrichtung (22) zum zeitabhängigen und/oder wassertemperaturabhängigen und/oder wasserverbrauchsabhängigen Spülen der Wasserleitung (4). Um die hygienischen Anforderungen an ein Trinkwassersystem zu erfüllen und ein effizientes Spülen zu ermöglichen ist die Spülvorrichtung (22) nach der vorliegenden Erfindung zur wasserdruckabhängigen Steuerung des Spülens angepasst eingerichtet. In einem nebengeordneten Aspekt gibt die vorliegende Erfindung ein Trink- und Brauchwassersystem mit einer solchen Spülvorrichtung an.The invention relates to a flushing device which can be connected to a drinking water system for flushing at least one water line (4), comprising a flushing valve (8), a control line (24) connected to the flushing valve (8) for control purposes, and a position of the flushing valve (8 ) control device (22) controlling the control line (24) for time-dependent and / or water temperature-dependent and / or water consumption-dependent rinsing of the water line (4). In order to meet the hygienic requirements for a drinking water system and to enable efficient rinsing, the rinsing device (22) according to the present invention is adapted to control rinsing depending on the water pressure. In a secondary aspect, the present invention provides a drinking and process water system with such a flushing device.

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 generally 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 generally provided in a building at basement level. The flushing device furthermore has a control line connected to the flushing valve for control purposes and a control device controlling a position of the flushing valve by means of the control line for flushing the water line depending on time and / or water temperature and / or water consumption. In particular, the flushing device can be arranged such that the flushing valve is arranged downstream of the consumer in the direction of flow. Such a flushing device is based on the applicant's 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 process water system, which has a connection to the public water supply network, for example in the basement of a building. Via this connection, several supply lines for the supply of various water consumers within the building are supplied with fresh water. If there is no water withdrawal by a consumer, stale water in the supply lines can be exchanged by opening a flushing valve and supplying fresh water from the water supply network. Such an exchange of stale water is commonly referred to as rinsing or rinsing. The water flowing out of the water system via the flushing valve is drained 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 flushing valve can be checked by the central control device by means of a control line. Automated flushing processes can be programmed via a time module integrated in the central control device. In addition, a water temperature measured via a temperature sensor can be transmitted to the central control device. The period of the rinsing cycles can be adjusted depending on the measured temperature. In addition, a flow sensor can be provided which 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 isolates the water system from the public water supply network and empties the system by holding the flush valve in the open position.

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 water in it will adjust to the ambient temperature. A thermal equilibrium is established between the environment and the drinking water pipe. Depending on the type of installation, the ambient temperature relevant for the drinking water pipeline is significantly higher than the room temperature, whereby the formation of germs such as legionella is favored in this area. Flushing 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 offers room for improvement in terms of washing 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 rinsing device which enables efficient rinsing 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 provides a flushing device with the features of claim 1.

Die Steuerungsvorrichtung der erfindungsgemäßen Spülvorrichtung ist zum zeitabhängigen und/oderwassertemperaturabhängigen und/oderwasserverbrauchsabhängigen 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 set up to be 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 rinsing processes at specific times or time 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 rinsing. The flushing valve can generally be set 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 control the flushing depending on the water pressure. Controlling the flushing in the sense of the present invention is understood in particular to be the opening and closing of the flushing valve. However, a decision not to open or block the rinsing valve under certain circumstances can generally also be regarded as a control in the sense of the invention. A means is preferably provided which, in the case of certain water pressure conditions in the system, prevents water from flowing out of the system via the flushing valve, even when it opens.

Somit kann ein Trink- und Brauchwassersystem mit Hilfe der erfindungsgemäßen Spülvorrichtung möglichst effizient gespült werden. Insbesondere kann 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.A drinking and process water system can thus be flushed as efficiently as possible with the aid of the flushing device according to the invention. In particular, flushing can be omitted if a tapping process of a consumer is noticeable through a change in the water pressure in the system. A fluctuation in the water pressure due to rinsing during consumption, which may result in a loss of comfort for the consumer, can thus be avoided.

Nach einer bevorzugten Weiterbildung 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 a preferred development of the present invention, the control device has a mechanical, hydraulic and / or electronic control element and controls the flushing in such a way that the flushing does not take place if the control element detects 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 measures the pressure quantitatively. Lowered water pressure is generally understood to mean a water pressure which is lower than the water pressure with the water system connected to the water supply and with closed consumer valves and closed flushing valve; that is, with water in the connected water system. Certain pressure fluctuations, for example caused by minor leaks, do not usually lead to a significant drop in water pressure. As a rule, a lowered water pressure of the water system is to be understood as a lowered water pressure caused by a tap process by a consumer, which no longer guarantees an adequate supply to other tapping points. Depending on the sampling point under consideration, the absolute value for a reduced pressure varies. It is usually 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 seen as a criterion for the purging being suspended.

Die Spülvorrichtung nach dieser Weiterbildung 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 further development is particularly suitable for use in laboratories and production plants in which people can come into contact with splashing, caustic or hot chemicals and can clean themselves with the aid of an emergency shower. This is how it can be prevented that an additional rinsing process is triggered during an emergency and the operation of the emergency shower, which would lead to an insufficient supply of the emergency shower.

Nach einer weiteren 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 further preferred development of the present invention, the flushing device has a mechanically pretensioned check valve upstream of the flushing valve as a control element, which opens in the direction of the flushing valve. The check valve is usually biased in such a way that it remains in a closed position when the water pressure in the water system is lowered, so that water from the water system does not reach the flushing valve. In this way, it can be ensured in a simple manner that there is no flushing 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 communicating with the pressure sensor and connected to the flushing valve for control purposes, the control unit being set up in such a way that the flushing valve is based on a signal from the pressure sensor is de-energized 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 outputting 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, which closes a switching contact at a certain deflection and whose deflection is pressure-dependent. When the switch 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 into the open position by the control device by means of a control line posed. The control line can be temporarily disconnected from the power supply by the control device. To block the flushing valve, a mechanical blocking element that can be controlled by the control unit and that fixes the position of the flushing valve in the closed position is also conceivable.

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 zu 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 with 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 electronic. A mechanical coupling is also conceivable.

So kann einer Unterversorgung einer Notdusche zusätzlich entgegengewirkt werden.Undersupply of an emergency shower can also 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 provides a drinking and industrial water system with a connection to the public water supply network, a water pipe leading to at least one consumer and a flushing device according to claim 1, the flushing valve of the flushing device being arranged downstream of the consumer in the direction of flow As a rule, the drinking and process water system is provided in a residential, industrial or office building, hospital or hotel. In particular, the drinking and process water system according to the invention can be provided in a laboratory or a manufacturing plant.

Bevorzugt ist die Steuerungsvorrichtung des Trink- und Brauchwassersystems nach der vorliegenden Erfindung 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 industrial water system according to the present invention is preferably set up in such a way that flushing does not occur when the water pressure in the water line is reduced. The drinking and industrial water system according to the present invention is further preferably designed according to one or more of these further 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 result from the following description of exemplary embodiments of the invention in conjunction with the drawing. In this show:
  • Fig. 1a a schematic diagram of an embodiment of a drinking and industrial water system with a mechanically biased check valve having a flushing device with a detail D, which in Figure 1b is shown as an enlargement,
  • Fig. 1b enlarged view of the detail D. Fig. 1a ,
  • Fig. 2 a schematic drawing of an embodiment of a drinking and industrial water system with a flushing device having a pressure switch and
  • Fig. 3 a schematic drawing of an embodiment of a drinking and industrial water system with a flushing device having a pressure gauge.

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 industrial 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 direction of flow, ie downstream of the eye shower 6b, by means of which water in the supply line 4 can be drained off and fresh water flows in via the connection 2. The flushing valve drains off into a sewage pipe via a free outlet 10. The free drain 10 includes a drop section that is directly connected to the ambient atmosphere, so that the legal requirements for the separation of drinking water and waste water or industrial 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 in terms of control to a control unit 22 via a control line 24, a time module being integrated in the control unit 22, which causes the control unit 22 at certain times to activate the flushing valve 8 for a flushing process by means of a servomotor 28 coupled to the control line 24 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 Durchflussmengensensorsein. 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 connected to the control unit 22 for signal transmission. Sensor 30 may be a temperature or flow rate sensor. Of course, several sensors, in particular at least one water temperature sensor and at least one flow rate sensor, can also be provided. The measured values of the sensor or sensors are evaluated in the control unit 22 and flow into the control of the flushing valve 8. For example, in the event of a measured temperature rise, the time intervals between those of the time module predetermined flushing processes can be shortened or increased with 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 prestressed check valve 12 is arranged in the line section upstream of the flushing valve 8 in the flow direction. The check valve 12 is in the enlarged view of the circled detail D of the drinking and process water system in Fig. 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 such that when the emergency shower 6a is open or the eye shower 6b is open and the water pressure in the supply line 4 is lowered, the valve body 16 bears 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 against the spring force by the water pressure in the supply line 4, 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 is identified by reference numeral 18, with which the area downstream of the valve 18 can be depressurized.

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 industrial water system according to the present invention. Same components as in Fig. 1 are identified by 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 lowered water pressure in this area has an effect on 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 connected to the flush valve 8 for control purposes via the control line 24 controls the flush valve 8 after receiving the signal in the closed position and / or disconnects the control line 24 from the power supply in order to leave the flush valve 8 in the closed position or blocks the flush 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 Druckventil 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 industrial water system according to the present invention. The same components as in the previous figures are again included identified by the same reference numerals. The embodiment according to Fig. 3 differs from the exemplary embodiment 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 quantitatively detects the pressure in this area and sends the measurement signals to the control unit 22. The person skilled in the art is familiar with various pressure measuring devices which are suitable for measuring a water pressure in a line and at least one of which is used in the exemplary embodiment. The control unit 22 evaluates the measurement signals with the aid of an integrated logic, generally compares the measurement variables with a preset reference value and brings the pressure valve 8 into the closed position at a reduced pressure and / or disconnects the control line 24 from the power supply to the flushing valve 8 in the closed position or blocks the flush valve 8 in the closed position, for example with the aid of a mechanical blocking element.

BezugszeichenlisteReference symbol list

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

Claims (10)

Spülvorrichtung, die zum Spülen mindestens einer Wasserleitung (4) an ein Trinkwassersystem anschließbar ist, aufweisend
ein Spülventil (8),
eine steuerungsmäßig mit dem Spülventil (8) verbundene Steuerleitung und
eine eine Stellung des Spülventils (8) mittels der Steuerleitung (24) kontrollierende Steuerungsvorrichtung (22) zum zeitabhängigen und/oder wassertemperaturabhängigen und/oder wasserverbrauchsabhängigen Spülen der Wasserleitung (4), dadurch gekennzeichnet, dass die Spülvorrichtung zur wasserdruckabhängigen Steuerung des Spülens angepasst eingerichtet ist.Rinsing device, which can be connected to a drinking water system for rinsing at least one water pipe (4)
a flushing valve (8),
a control line connected in terms of control to the flushing valve (8) and
a control device (22) controlling a position of the flushing valve (8) by means of the control line (24) for flushing the water line (4) as a function of time and / or water temperature and / or water consumption, characterized in that the flushing device is adapted to control the flushing depending on water pressure . Spülvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Steuerungsvorrichtung (22) ein mechanisches, hydraulisches und/oder elektronisches Steuerungselement (12, 20, 26) aufweist und das Spülen derart steuert, dass das Spülen unterbleibt, wenn das Steuerungselement (12, 20, 26) einen abgesenkten Wasserdruck des Wassersystems wahrnimmt.Flushing device according to claim 1, characterized in that the control device (22) has a mechanical, hydraulic and / or electronic control element (12, 20, 26) and controls the flushing in such a way that the flushing is omitted if the control element (12, 20, 26) senses a lowered water pressure in the water system. Spülvorrichtung nach Anspruch 2, gekennzeichnet durch ein dem Spülventil (8) in Strömungsrichtung vorgelagertes mechanisch vorgespanntes Rückschlagventil (12) als Steuerungselement, das in Richtung des Spülventils (8) öffnet.Flushing device according to claim 2, characterized by a mechanically pretensioned check valve (12) upstream of the flushing valve (8) in the flow direction as a control element which opens in the direction of the flushing valve (8). Spülvorrichtung nach Anspruch 2 oder 3, gekennzeichnet durch einen dem Spülventil (8) in Strömungsrichtung vorgelagerten Drucksensor (20, 26) als Steuerungselement, wobei die Steuerungsvorrichtung (22) mit dem Drucksensor (20, 26) kommuniziert, steuerungsmäßig mit dem Spülventil (8) verbunden und derart eingerichtet ist, dass das Spülventil (8) aufgrund eines Signals des Drucksensors (20, 26) spannungsfrei geschaltet oder gesperrt wird.Flushing device according to Claim 2 or 3, characterized by a pressure sensor (20, 26) upstream of the flushing valve (8) in the flow direction as a control element, the control device (22) communicating with the pressure sensor (20, 26), in terms of control with the flushing valve (8) is connected and set up such that the flushing valve (8) is switched voltage-free or blocked on the basis of a signal from the pressure sensor (20, 26). Spülvorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass der Drucksensor (20, 26) als ein Druckschalter (20) ausgebildet ist.Flushing device according to claim 4, characterized in that the pressure sensor (20, 26) is designed as a pressure switch (20). Spülvorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass der Drucksensor (20, 26) als ein Druckmessgerät (26) ausgebildet ist.Flushing device according to claim 4, characterized in that the pressure sensor (20, 26) is designed as a pressure measuring device (26). Spülvorrichtung nach einem der vorherigen Ansprüche, gekennzeichnet durch Mittel zur Kopplung der Stellung eines einem Verbraucher zugeordneten Ventils (6a, 6b) mit der Stellung des Spülventils (8), derart, dass ein Öffnen des dem Verbraucher zugeordneten Ventils (6a, 6b) ein Schließen des Spülventils (8) bewirkt.Flushing device according to one of the preceding claims, characterized by means for coupling the position of a valve (6a, 6b) assigned to a consumer with the position of the flushing valve (8), such that an opening of the valve (6a, 6b) assigned to the consumer closes of the flush valve (8). Trink- und Brauchwassersystem mit einem Anschluss (2) an das öffentliche Wasserversorgungsnetz, einer zu mindestens einem Verbraucher (6a, 6b) führenden Wasserleitung (4) und einer Spülvorrichtung, die ein dem Verbraucher (6a, 6b) in Strömungsrichtung nachgelagertes Spülventil (8), eine steuerungsmäßig mit dem Spülventil (8) verbundene Steuerleitung (24) und eine eine Stellung des Spülventils (8) mittels der Steuerleitung (24) kontrollierende Steuerungsvorrichtung (22) zum zeitabhängigen und/oder wassertemperaturabhängigen und/oder wasserverbrauchsabhängigen Spülen der Wasserleitung (4) aufweist, dadurch gekennzeichnet, dass die Spülvorrichtung zur wasserdruckabhängigen Steuerung des Spülens angepasst eingerichtet ist.Drinking and process water system with a connection (2) to the public water supply network, a water pipe (4) leading to at least one consumer (6a, 6b) and a flushing device which has a flushing valve (8) downstream of the consumer (6a, 6b) , a control line (24) connected in terms of control to the flushing valve (8) and a control device (22) controlling a position of the flushing valve (8) by means of the control line (24) for flushing the water line (4) as a function of time and / or water temperature and / or water consumption. has, characterized in that the flushing device is set up for water pressure-dependent control of the flushing. Trink- und Brauchwassersystem nach Anspruch 8, dadurch gekennzeichnet, dass die Steuerungsvorrichtung derart eingerichtet ist, dass bei einem abgesenkten Wasserdruck in der Wasserleitung (4) das Spülen unterbleibt.Drinking and industrial water system according to claim 8, characterized in that the control device is set up in such a way that when the water pressure in the water line (4) is reduced, the flushing is omitted. Trink- und Brauchwassersystem nach Anspruch 8 oder 9, gekennzeichnet durch eine Weiterbildung nach einem oder mehreren der Ansprüche 2 bis 7.Drinking and industrial water system according to claim 8 or 9, characterized by a further development according to one or more of claims 2 to 7.
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)

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DE202018005791.6U DE202018005791U1 (en) 2018-12-13 2018-12-13 Flushing device

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CA (1) CA3064376C (en)
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CA3064376C (en) 2022-07-12
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US11739511B2 (en) 2023-08-29
US20200190781A1 (en) 2020-06-18
DK3666984T3 (en) 2021-02-08
DE202018005791U1 (en) 2020-03-19

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