EP3666984B1 - Dispositif de rinçage et système d'eau potable et sanitaire doté d'un tel dispositif de rinçage - Google Patents

Dispositif de rinçage et système d'eau potable et sanitaire doté d'un tel dispositif de rinçage Download PDF

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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)
English (en)
Other versions
EP3666984A1 (fr
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/fr
Application granted granted Critical
Publication of EP3666984B1 publication Critical patent/EP3666984B1/fr
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Anticipated expiration legal-status Critical

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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 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.

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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)

Claims (8)

  1. Dispositif de rinçage pouvant être raccordé à un système d'eau potable pour rincer au moins une conduite d'eau (4), comprenant
    une vanne de rinçage (8),
    une conduite de commande reliée à la vanne de rinçage (8) à des fins de commande et
    un dispositif de commande (22) commandant une position de la vanne de rinçage (8) au moyen de la conduite de commande (24) pour le rinçage de la conduite d'eau (4) en fonction du temps et/ou de la température de l'eau et/ou de la consommation d'eau, le dispositif de rinçage étant adapté pour commander le rinçage en fonction de la pression de l'eau,
    caractérisé en ce que le dispositif de commande (22) comprend un élément de commande mécanique, hydraulique et/ou électronique (12, 20, 26) et commande le rinçage de telle sorte que le rinçage ne se produise pas lorsque l'élément de commande (12, 20, 26) détecte une pression d'eau abaissée du système d'eau.
  2. Dispositif de rinçage selon la revendication 1, caractérisé par un clapet anti-retour (12) précontraint mécaniquement, qui est monté en amont de la vanne de rinçage (8) dans le sens de l'écoulement, en tant qu'élément de commande qui s'ouvre dans la direction de la vanne de rinçage (8).
  3. Dispositif de rinçage selon les revendications 1 ou 2, caractérisé par un capteur de pression (20, 26) monté en amont de la vanne de rinçage (8) dans le sens de l'écoulement, en tant qu'élément de commande, le dispositif de commande (22) communiquant avec le capteur de pression (20, 26), étant relié à la vanne de rinçage (8) au niveau de la commande et étant conçu de telle sorte que la vanne de rinçage (8) est mise hors tension ou bloquée sur la base d'un signal du capteur de pression (20, 26).
  4. Dispositif de rinçage selon la revendication 3, caractérisé en ce que le capteur de pression (20, 26) est conçu comme un interrupteur de pression (20).
  5. Dispositif de rinçage selon la revendication 3, caractérisé en ce que le capteur de pression (20, 26) est conçu comme un manomètre (26).
  6. Dispositif de rinçage selon l'une des revendications précédentes, caractérisé par des moyens pour coupler la position d'une vanne (6a, 6b) attribuée à un consommateur avec la position de la vanne de rinçage (8) de telle sorte que l'ouverture de la vanne (6a, 6b) attribuée au consommateur provoque la fermeture de la vanne de rinçage (8).
  7. Système d'eau potable et d'eau de service avec un raccordement (2) au réseau public d'alimentation en eau, une conduite d'eau (4) menant à au moins un consommateur (6a, 6b) et un dispositif de rinçage qui comprend une vanne de rinçage (8) en aval du consommateur (6a, 6b) dans le sens de l'écoulement, une conduite de commande (24) reliée à la vanne de rinçage (8) en termes de commande et un dispositif de commande (22) commandant une position de la vanne de rinçage (8) au moyen de la conduite de commande (24) pour le rinçage de la conduite d'eau (4) en fonction du temps et/ou de la température et/ou de la consommation d'eau, le dispositif de rinçage étant adapté pour la commande du rinçage en fonction de la pression d'eau,
    caractérisé en ce que le dispositif de commande est configuré de telle sorte que le rinçage n'a pas lieu lorsque la pression de l'eau dans la conduite d'eau (4) est réduite.
  8. Système d'eau potable et de traitement selon la revendication 7, caractérisé par une formation complémentaire selon une ou plusieurs des revendications 2 à 6.
EP19215742.8A 2018-12-13 2019-12-12 Dispositif de rinçage et système d'eau potable et sanitaire doté d'un tel dispositif de rinçage Active EP3666984B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202018005791.6U DE202018005791U1 (de) 2018-12-13 2018-12-13 Spülvorrichtung

Publications (2)

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

Family

ID=68916213

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19215742.8A Active EP3666984B1 (fr) 2018-12-13 2019-12-12 Dispositif de rinçage et système d'eau potable et sanitaire doté d'un tel dispositif de rinçage

Country Status (5)

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

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 (de) * 2019-01-31 2020-08-06 Gebrüder Kemper Gmbh + Co. Kg Metallwerke Trink- und Brauchwassersystem und Verfahren zum Spülen desselben

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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
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
US7240852B2 (en) * 2004-06-09 2007-07-10 Taylor Thomas M Drinking fountain with automatic stagnant water flushing system
CA2570161C (fr) 2004-06-09 2013-07-16 Thomas M. Taylor Systeme de rincage automatique d'eau stagnante
DE202008002822U1 (de) 2008-02-28 2009-07-09 Gebr.Kemper Gmbh + Co.Kg Metallwerke Trink- und Brauchwasserversorgungseinrichtung eines Gebäudes und Steuervorrichtung für eine solche
DE102011013955B4 (de) 2011-03-14 2018-12-27 Viega Technology Gmbh & Co. Kg Verfahren zum selbsttätigen Spülen
IL216497A (en) * 2011-11-21 2016-07-31 Yona Senesh A device and method for distributing fluid through a network of passages
US10011978B1 (en) * 2015-07-28 2018-07-03 Robert A Mahon Dead-end water-line flushing system
DE102015015649B4 (de) 2015-12-02 2017-10-26 Bekim Osmanaj Leitungsspülvorrichtung und leitungsspülsystem
DE102016103833A1 (de) * 2016-03-03 2017-09-07 Uponor Innovation Ab System und Verfahren zum Spülen einer Trinkwasserinstallation
WO2018132775A1 (fr) * 2017-01-14 2018-07-19 Larach Mario Appareil d'unité de surveillance intelligente assurant une pression et un flux en amont et en aval
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

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Also Published As

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

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