EP3337931B1 - Device and method for automatic supply pipe flushing with multiple valve - Google Patents
Device and method for automatic supply pipe flushing with multiple valve Download PDFInfo
- Publication number
- EP3337931B1 EP3337931B1 EP16751277.1A EP16751277A EP3337931B1 EP 3337931 B1 EP3337931 B1 EP 3337931B1 EP 16751277 A EP16751277 A EP 16751277A EP 3337931 B1 EP3337931 B1 EP 3337931B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flushing
- valve
- liquid
- valves
- connection
- 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.)
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Links
- 238000011010 flushing procedure Methods 0.000 title claims description 100
- 238000000034 method Methods 0.000 title claims description 39
- 239000007788 liquid Substances 0.000 claims description 112
- 239000003651 drinking water Substances 0.000 claims description 13
- 235000020188 drinking water Nutrition 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 4
- 230000001419 dependent effect Effects 0.000 claims 2
- 230000036962 time dependent Effects 0.000 claims 2
- 230000001105 regulatory effect Effects 0.000 description 8
- 230000033228 biological regulation Effects 0.000 description 4
- 238000011109 contamination Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 241000589248 Legionella Species 0.000 description 1
- 208000007764 Legionnaires' Disease Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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, valves, in the pipe systems
- E03B7/08—Arrangement of draining devices, e.g. manual shut-off valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0325—Control mechanisms therefor
-
- 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
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons, valves, in the pipe systems
- E03B7/071—Arrangement of safety devices in domestic pipe systems, e.g. devices for automatic shut-off
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/02—Plumbing installations for fresh water
- E03C1/05—Arrangements of devices on wash-basins, baths, sinks, or the like for remote control of taps
- E03C1/055—Electrical control devices, e.g. with push buttons, control panels or the like
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/122—Pipe-line systems for waste water in building
- E03C1/1222—Arrangements of devices in domestic waste water pipe-line systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/28—Odour seals
- E03C1/284—Odour seals having U-shaped trap
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/28—Odour seals
- E03C1/284—Odour seals having U-shaped trap
- E03C1/288—Odour seals having U-shaped trap having non-return valves against return of waste water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
- F24D17/0073—Arrangements for preventing the occurrence or proliferation of microorganisms in the water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87265—Dividing into parallel flow paths with recombining
- Y10T137/87298—Having digital flow controller
Definitions
- the invention relates to a device for the automatic flushing of liquid lines, in particular drinking water lines, with at least one connection for a water line, with at least one connection for a waste water line and with a flushing valve which is arranged between the connections for the water line and the waste water line.
- the invention also relates to a method for automatically flushing water pipes using a device according to the invention.
- the flushing frequency or duration can be increased in order to ensure better hygiene.
- increased flushing has the disadvantage that flushing can take place at times when residents feel disturbed, for example due to the night's rest.
- the water consumption associated with more frequent rinsing is also viewed as disadvantageous.
- a control device for controlling the flush valve as a function of a water temperature, a flow rate or a time is provided.
- the DE 20 2008 002 822 U1 relates to an automatically controlled valve.
- the WO 2006/077396 A1 discloses a flushing device which has solenoid valves arranged in parallel.
- the invention is therefore based on the object of specifying a device and a method for automatic flushing which enable flushing behavior that is better adapted to the circumstances.
- the object is achieved by means of a device for automatic flushing of liquid lines, the flushing valve comprising a multiple valve with parallel valves, the parallel valves being connected to the liquid path via the connection and a multiplication of the volume flow compared to allow a single valve, wherein a control unit is provided which controls the opening and closing of the individual valves in the flushing valve, wherein the control unit varies the number of open parallel valves from the multiple valve according to the size of the liquid line to which the device is connected during a flushing process the number of valves to be opened is adapted to the volume to be flushed.
- the device according to the invention has at least one connection for a liquid path and at least one connection for a discharge path.
- the connections are used in particular for a liquid-tight and pressure-tight connection to a liquid path carrying a liquid, the contents of which can be at least partially emptied into a drainage path via automatic flushing.
- one or more pipe stubs or fittings for connecting to pipes can be provided as connections.
- the connections can be dimensioned according to the lines to be connected to them, for example the connections for pipes with standardized nominal widths from DN 8 to DN 150 according to DIN EN ISO 6708, in particular for DN 20 to DN 100.
- a water path or drinking water path for example within a building or a floor of a building, is particularly suitable as the liquid path.
- the device according to the invention can be used to automatically flush the contents of the water path into the public water disposal system connected to the connection for a drainage path and, in particular, to avert the risk of deposits, contamination and germ formation.
- At least one flushing valve is arranged between the connections for the liquid line and the discharge line. In the closed state, the flushing valve blocks the access from the connection for a liquid path to the connection for a drainage path within the device. For the automatic flushing of liquid lines connected to the device, the flushing valve can be opened and a flushing process can thus be initiated.
- the flush valve comprises a multiple valve with parallel valves.
- the parallel valves which are connected to the liquid path via the connection, enable the volume flow to be multiplied compared to a single valve.
- the parallel valves each have the same cross section to be flown through.
- the flushing valve is preferably arranged between a single connection for a liquid path and a single connection for a drainage path, so that the device can be constructed in a particularly compact and simple manner.
- the volume flow can be regulated in stages by fully opening or closing individual valves.
- stepless control is also possible by partially opening or closing individual valves.
- the same design of the device according to the invention can also be used for a large number of fluid paths of different sizes.
- the number of parallel valves used from the multiple valve can be varied according to the size of the liquid line to which the device is connected. This means that the design and manufacture of devices for automatic flushing in different sizes or with individual valves of different sizes can be dispensed with, which increases the cost-effectiveness of the device.
- the volume flows through the individual open valves can be achieved essentially independently of the pressure in the liquid line, for example in the range from 2 to 10 bar.
- liquid lines can thus be flushed in a controlled manner largely independently of the pressure in the liquid line by selecting the number of open valves.
- the multiple valve has parallel solenoid valves.
- Solenoid valves can be controlled in particular by electronic circuits and are therefore suitable for automation. Solenoid valves can also enable fast switching times.
- a 4-way solenoid valve in particular is suitable for covering a large number of applications for automatic flushing.
- the four parallel valves of the 4-way solenoid valve can each have the same dimensions.
- the volume flow through the valve can thus be regulated within four stages by completely opening individual valves.
- four solenoid valves are used with a volume flow of 12 1 / min ( ⁇ 10%) each, with which the volume flow depending on the connected liquid line or depending on the operating mode and flushing process in stages 0 ⁇ 12 ⁇ 24 ⁇ 36 ⁇ 48 l / min ( ⁇ 10% each).
- stepless regulation is also possible by partially opening individual solenoid valves.
- the multiple valve provides a maximum volume flow of at least 30 l / min, preferably 45 l / min. This order of magnitude has been found to be appropriate for many sizes of liquid lines and also for large pipe diameters in order to enable flushing processes with short flushing times. Short flushing times are advantageous to reduce noise pollution.
- connection for a discharge section is designed for a pressure-loaded discharge section.
- a free outlet is arranged between the flushing valve and the connection for a discharge section. In this way, drainage of the liquid from the liquid path can be ensured in a simple manner.
- the free outlet is designed in such a way that it meets the requirements of a free outlet of type AB in accordance with DIN EN 1717.
- the free outlet does not have a circular cross section.
- connection for a discharge path is designed with a jet regulator.
- a jet regulator is a component that regulates the flow of the liquid in relation to its jet shape, for example in the form of a nozzle.
- the shape of the exiting free jet can be influenced, for example focused, in particular in the case of a free outlet.
- a jet regulator enables an even and uniform discharge jet.
- a backwater container is provided.
- a backwater container, especially between the The flushing valve and the connection for a drainage section provide a retention volume which, for example, prevents the liquid drained off by the flushing from being pushed back into the liquid line if the volume flow through the open flushing valve is too high for the dimensioning of the drainage section or a blocked drainage section.
- the backwater container In the event of a backwater, the backwater container first fills with liquid before it reaches the liquid path. This supports safe automatic flushing. In the case of drinking water pipes in particular, contamination of the fresh drinking water by means of the wastewater flowing back due to a backwater is prevented.
- a backflow sensor monitors whether liquid escapes from the drainage path due to a backflow during a flushing process and threatens to enter the liquid line.
- a backflow can be detected prematurely and, if necessary, by closing the flushing valve in good time, it can be prevented that liquid from the discharge path passes through the flushing valve into the liquid path.
- the backflow sensor can in particular comprise a float sensor or a float switch which monitors the liquid level in the drainage path or in a backwater container. The use of a pressure switch as a backflow sensor is also conceivable.
- the combination of a backflow sensor with a backwater container is particularly advantageous.
- the backwater container can be dimensioned and arranged with the backflow sensor so that the volume of the backwater container is sufficient to close the flush valve within its switching time before liquid can enter the liquid path from the discharge path.
- a float sensor or float switch can be provided in order to monitor the liquid level in the backwater container. Also the use of one or more pressure switches at the position of different liquid levels within the backwater container is possible.
- an odor trap is arranged between the flushing valve and the connection for a discharge section.
- a siphon can be used here, for example a pipe siphon or bottle siphon.
- An odor trap in the form of a valve is also conceivable.
- An odor trap prevents gases from escaping from the discharge line, which is particularly advantageous when there is a free outlet.
- the flushing valve comprises at least one flow rate limiter, in particular at least one flow rate limiter in each valve of the multiple valve. This allows the flow through the flush valve to be better regulated. In particular, this supports the fact that the volume flows through the individual open valves can be regulated essentially independently of the pressure in the liquid line.
- a control unit which controls the opening and closing of the individual valves in the flushing valve.
- the regulation of the flushing processes and, if necessary, the monitoring of parameters of the device can be integrated into the device via a control unit.
- the control unit can trigger and terminate flushing processes via external parameters, for example as a function of time.
- the control unit can be remotely controlled, in particular it can be coupled to other central control units.
- Internal parameters for example the temperature at certain points within the liquid line, the flow rate or the pressure, can also be monitored by the control unit and used in a measurement of the flushing processes, in particular the number of parallel valves to be opened in the multiple valve, but also the time and date Length of flushing processes.
- a flow sensor is provided.
- the flow sensor can be arranged between the connection for a liquid path and the flushing valve or between the flushing valve and the connection for a discharge path and record a flow of the liquid, possibly also the pressure and the flow.
- a flow sensor between the connection for a liquid path and the flushing valve can be used, in particular, to monitor leaks and, for example, detect the flow of liquid if the flushing valve is unintentionally not completely closed or leaking.
- a system of liquid lines, in particular drinking water lines, with a device according to the invention, with a liquid path connected to the device and with a drainage path connected to the device is also described.
- the liquid path comprises one or more ring lines or linear lines which carry liquid.
- the liquid path has one or more consumers such as taps or fittings for discharge lines along the lines.
- the liquid path can be automatically flushed. Opening the flush valve creates a liquid path between the liquid path and the discharge path, with which the liquid can be at least partially diverted or renewed from the liquid path when the liquid path is connected to a liquid source.
- the number of parallel valves that are open can be regulated from the multiple valve, for example adapted to the size of the liquid path.
- the device according to the invention there is the Possibility of arranging sensors at different points in the liquid path in order to influence the flushing process with the measured values.
- the supply line from a liquid source but also individual consumers or side lines of the liquid path, can be monitored with sensors and the amount of liquid to be drained and also the number of parallel valves of the multiple valve to be opened can be determined within a flushing process.
- the above-mentioned object is achieved by a method for automatically flushing liquid lines, in particular drinking water lines, using a device according to the invention in that flushing processes are provided in which the multiple valve for flushing a liquid path is opened and after a flushing period is closed again.
- the method according to the invention comprises such rinsing processes in order to supply liquid from the liquid path to the discharge path.
- the opening and closing of the multiple valve can in particular be controlled via a control unit, in particular as a function of time, temperature and / or as a function of the flow through the liquid path.
- the number of valves to be opened in a flushing process in the multiple valve is determined as a function of time, temperature and / or as a function of the flow through the liquid path.
- the volume flow from the liquid line through the flushing valve into the discharge line can thus be regulated.
- the number of valves to be opened is adapted to the volume to be flushed.
- the number of valves to be opened can also be adapted to the flushing duration.
- a flushing process is ended automatically in the event of a backwater.
- a backflow can be detected by a backflow sensor and cause the flush valve to close automatically in order to prevent liquid from penetrating the drainage path into the liquid path. In the case of drinking water pipes in particular, this prevents contamination of the fresh drinking water by backflowing wastewater.
- Fig. 1 shows a schematic view of an embodiment of the device 2 according to the invention for automatic rinsing.
- the device 2 comprises a connection 4 for a liquid path, a connection 6 for a Drainage path and a flush valve 8, which is arranged between the connections 4, 6 for the liquid path and drainage path.
- the flushing valve 8 comprises a multiple valve, in this exemplary embodiment in the form of a 4-way solenoid valve.
- the 4-way solenoid valve comprises a total of four solenoid-controlled valves 10 with the same cross section, of which in the view of FIG Fig. 1 only two valves 10a, 10b are visible.
- the valves 10 of the 4-way solenoid valve are arranged in parallel, ie the fluid path from the connection 4 for a fluid line can run next to one another via the individual valves 10.
- the volume flow through the flushing valve 8 can thus be regulated in a simple manner via the number of open valves 10.
- valves 10 with 12 1 / min ( ⁇ 10%) each are used, with which the volume flow depending on the connected liquid line and also depending on the operating mode and flushing process in stages 0 ⁇ 12 ⁇ 24 ⁇ 36 ⁇ 481 / min (each ⁇ 10%) can be regulated.
- the device 2 further comprises a backwater container 12, which is arranged between the flushing valve 8 and the connection 6 on a discharge path.
- the backwater container 12 provides a retention volume which prevents, for example, a volume flow through the open flushing valve 8 or a blocked drainage path that is too high for the drainage path from being pressed back into the liquid line by the flushing. In the event of a backwater, the backwater container 12 first fills with liquid before it reaches the liquid path.
- a free outlet 14 is arranged between the flushing valve 8 and the connection 6 on a discharge path. In this way, drainage of the liquid from the liquid path when the flushing valve 8 is open can be ensured in a simple manner.
- a jet regulator 16 regulates the flow of the liquid in relation to its jet shape and flow. The jet regulator 16 enables a uniform and uniform discharge jet in the free outlet 14.
- An odor trap 18 is arranged between the flushing valve 8 and the connection 6 for a discharge section.
- the odor trap 18 prevents gases from escaping from the discharge section, in particular into the free outlet 14.
- the device has a backflow sensor 20, which monitors whether liquid escapes from the drainage path due to a backflow during a flushing process and threatens to enter the liquid line by detecting the liquid level in the backflow container 12 or in the free outlet 14. If a backflow is detected by the backflow sensor 20, then by closing the flush valve 8 it can be prevented that liquid from the discharge path gets into the liquid path.
- a float sensor or a float switch can be provided as the backflow sensor 20.
- the backwater container 12 is dimensioned in such a way that the volume of the backwater container 12 is sufficient to close the flushing valve 8 within its switching time in the event of a backflow before liquid can enter the drainage path.
- a flow sensor 22 is arranged between the connection 4 for a liquid path and the flushing valve 8 and can detect a flow of the liquid. This can be used to monitor a flushing process and, in particular, to monitor leaks. If, for example, the flushing valve 8 does not close completely or is leaking, a flow is recorded at the flow sensor 22 and the leak is detected.
- a control unit 24 controls the opening and closing of the individual valves 10 in the flushing valve 8.
- the control unit 24 also receives the information from the backflow sensor 20 and flow sensor 22.
- the control unit 24 automates the flushing processes and can also automatically close the flushing valve 8 when the backflow sensor 20 detects a backflow.
- Fig. 2 shows a perspective, schematic view of the first embodiment of the device 2 according to the invention with the same reference numerals as in FIG Fig. 1 .
- a housing 26 is provided.
- a non-circular shape or a non-circular cross-section of the backwater container 12 can also be recognized, here in the form of a rounded rectangle.
- other cross-sectional shapes are also conceivable.
- FIG. 3 shows a schematic view of a second exemplary embodiment of the device 2 according to the invention
- Fig. 3 and 4th the same reference numerals are chosen for the corresponding elements as in Fig. 1 and 2 .
- Significant differences from the first embodiment are the use of a pressure switch as a backflow sensor 20 and the circular shape or circular cross section of the free outlet 14 and the backwater container 12, as can be seen from the perspective view in FIG Fig. 4 reveals.
- Fig. 5 shows a schematic view of an embodiment of a system 28 with a device 2 according to the invention for automatically flushing a liquid path 30 into a drainage path 32.
- the liquid path 30 can comprise several linear lines and ring lines and is shown in FIG Fig. 5 shown simplified as a linear line with several consumers 34a, 34b, 34c arranged one behind the other.
- the liquid path 30 is supplied with liquid from a liquid source 36. If, for example, the consumer 34c located at the rear of the liquid source 36 is not used for a longer period of time, the stagnation of the liquid at the end of the liquid path 30 can cause problems such as deposits or contamination.
- the device 2 enables an automatic flushing and thus an at least partial exchange of the liquid in the liquid path 30.
- the backwater container 12 prevents the liquid from flowing back out of the discharge path 32, since the retention volume of the backwater container 12 is initially filled.
- the backflow sensor 20 can also be used to automatically close the flush valve 8 in the event of a backflow.
Description
Die Erfindung betrifft eine Vorrichtung zum selbsttätigen Spülen von Flüssigkeitsleitungen, insbesondere Trinkwasserleitungen, mit mindestens einem Anschluss für eine Wasserstrecke, mit mindestens einem Anschluss für eine Abwasserstrecke und mit einem Spülventil, welches zwischen den Anschlüssen für Wasserstrecke und Abwasserstrecke angeordnet ist. Ferner betrifft die Erfindung ein Verfahren zum selbsttätigen Spülen von Wasserleitungen unter Verwendung einer erfindungsgemäßen Vorrichtung.The invention relates to a device for the automatic flushing of liquid lines, in particular drinking water lines, with at least one connection for a water line, with at least one connection for a waste water line and with a flushing valve which is arranged between the connections for the water line and the waste water line. The invention also relates to a method for automatically flushing water pipes using a device according to the invention.
Vorrichtungen, Systeme und Verfahren der eingangs genannten Art sind bereits aus dem Stand der Technik bekannt. Werden Flüssigkeitsleitungen nicht kontinuierlich benutzt, können sich unter Umständen Ablagerungen in den, die Flüssigkeit führenden, Rohren bilden, welche den Flüssigkeitstransport behindern oder Teile des Leitungssystems blockieren können. Des Weiteren können sich insbesondere in Trinkwasserleitungen auch Mikroorganismen, wie Bakterien, beispielsweise Pseudomonaden oder Legionellen, bilden und eine Gesundheitsgefahr für den Menschen darstellen. Ein regelmäßiges Benutzen der Wasserleitungen beugt diesen Gefahren vor. Ein regelmäßiges Benutzen der Leitungen ist jedoch häufig nicht möglich, da beispielsweise Hotelzimmer oder Krankenhauszimmer für längere Zeiten nicht belegt oder öffentliche Gebäude für längere Zeiten geschlossen sein können. Aus diesem Grund wurden Vorrichtungen und Verfahren entwickelt, um das Spülen der Leitungen automatisch auszulösen.Devices, systems and methods of the type mentioned at the beginning are already known from the prior art. If liquid lines are not used continuously, deposits can form in the pipes carrying the liquid, which can hinder the transport of liquid or block parts of the line system. Furthermore, microorganisms such as bacteria, for example pseudomonads or legionella, can also form in drinking water pipes in particular and pose a health risk to humans. Regular use of the water pipes prevents these dangers. However, regular use of the lines is often not possible because, for example, hotel rooms or hospital rooms may not be occupied for long periods or public buildings may be closed for long periods. For this reason, devices and methods have been developed to automatically trigger the flushing of the lines.
So ist beispielsweise aus der
Doch selbst mittels dieser Verfahren kann jedoch nicht sicher verhindert werden, dass sich Bakterien in den Trinkwasserleitungen vermehren. So besteht weiterhin der Bedarf, eine verbesserte Hygiene zu gewährleisten. Es kann beispielsweise die Spülfrequenz oder -dauer erhöht werden, um eine bessere Hygiene zu gewährleisten. Ein vermehrtes Spülen hat aber gleichzeitig den Nachteil, dass das Spülen zu Zeiten stattfindet kann, zu denen sich Bewohner beispielsweise aufgrund der Nachtruhe gestört fühlen. Auch der mit einem häufigeren Spülen einhergehende Wasserverbrauch wird als nachteilig angesehen.However, even with these methods, bacteria cannot be reliably prevented from multiplying in the drinking water pipes. There is still a need to ensure improved hygiene. For example, the flushing frequency or duration can be increased in order to ensure better hygiene. At the same time, however, increased flushing has the disadvantage that flushing can take place at times when residents feel disturbed, for example due to the night's rest. The water consumption associated with more frequent rinsing is also viewed as disadvantageous.
Aus der Druckschrift
In der
Die
Die
Hiervon ausgehend liegt der Erfindung daher die Aufgabe zugrunde, eine Vorrichtung und ein Verfahren zum selbsttätigen Spülen anzugeben, welche ein an die Gegebenheiten besser angepasstes Spülverhalten ermöglichen.Proceeding from this, the invention is therefore based on the object of specifying a device and a method for automatic flushing which enable flushing behavior that is better adapted to the circumstances.
Gemäß einer ersten Lehre der Erfindung wird die Aufgabe mittels einer Vorrichtung zum selbsttätigen Spülen von Flüssigkeitsleitungen gelöst, wobei das Spülventil ein Mehrfachventil mit parallelen Ventilen umfasst, wobei die parallelen Ventile über den Anschluss in Verbindung mit der Flüssigkeitsstrecke stehen und ein Vervielfachen des Volumenstroms im Vergleich zu einem einzelnen Ventil ermöglichen, wobei eine Steuereinheit vorgesehen ist, welche das Öffnen und Schließen der einzelnen Ventile im Spülventil steuert, wobei die Steuereinheit bei einem Spülvorgang die Anzahl der geöffneten parallelen Ventile aus dem Mehrfachventil nach der Größe der Flüssigkeitsleitung variiert, an welche die Vorrichtung angeschlossen wird, wobei die Anzahl der zu öffnenden Ventile an das zu spülende Volumen angepasst wird.According to a first teaching of the invention, the object is achieved by means of a device for automatic flushing of liquid lines, the flushing valve comprising a multiple valve with parallel valves, the parallel valves being connected to the liquid path via the connection and a multiplication of the volume flow compared to allow a single valve, wherein a control unit is provided which controls the opening and closing of the individual valves in the flushing valve, wherein the control unit varies the number of open parallel valves from the multiple valve according to the size of the liquid line to which the device is connected during a flushing process the number of valves to be opened is adapted to the volume to be flushed.
Die erfindungsgemäße Vorrichtung weist mindestens einen Anschluss für eine Flüssigkeitsstrecke und mindestens einen Anschluss für eine Ableitungsstrecke auf. Die Anschlüsse dienen zur insbesondere flüssigkeitsdichten und druckdichten Verbindung mit einer Flüssigkeit führenden Flüssigkeitsstrecke, dessen Inhalt über ein selbsttätiges Spülen zumindest teilweise in eine Ableitungsstrecke entleert werden kann.The device according to the invention has at least one connection for a liquid path and at least one connection for a discharge path. The connections are used in particular for a liquid-tight and pressure-tight connection to a liquid path carrying a liquid, the contents of which can be at least partially emptied into a drainage path via automatic flushing.
Als Anschlüsse können beispielsweise eine oder mehrere Rohrstutzen oder Fittings zum Verbinden mit Rohren vorgesehen sein. Die Anschlüsse können entsprechend den daran anzuschließenden Leitungen dimensioniert sein, beispielsweise können die Anschlüsse für Rohre mit normierten Nennweiten von DN 8 bis DN 150 nach DIN EN ISO 6708 gestaltet sein, insbesondere für DN 20 bis DN 100.For example, one or more pipe stubs or fittings for connecting to pipes can be provided as connections. The connections can be dimensioned according to the lines to be connected to them, for example the connections for pipes with standardized nominal widths from
Als Flüssigkeitsstrecke kommt wie eingangs genannt insbesondere eine Wasserstrecke bzw. Trinkwasserstrecke in Frage, beispielsweise innerhalb eines Gebäudes oder einer Etage eines Gebäudes. Die erfindungsgemäße Vorrichtung kann dazu verwendet werden, den Inhalt der Wasserstrecke in das an den Anschluss für eine Ableitungsstrecke angeschlossene öffentliche Wasserentsorgungssystem selbsttätig zu spülen und insbesondere die Gefahr von Ablagerungen, Verunreinigungen und Keimbildung abzuwenden.As mentioned at the beginning, a water path or drinking water path, for example within a building or a floor of a building, is particularly suitable as the liquid path. The device according to the invention can be used to automatically flush the contents of the water path into the public water disposal system connected to the connection for a drainage path and, in particular, to avert the risk of deposits, contamination and germ formation.
Zwischen den Anschlüssen für Flüssigkeitsstrecke und Ableitungsstrecke ist mindestens ein Spülventil angeordnet. Das Spülventil versperrt im geschlossenen Zustand innerhalb der Vorrichtung den Zugang vom Anschluss für eine Flüssigkeitsstrecke zum Anschluss für eine Ableitungsstrecke. Zum selbsttätigen Spülen von an die Vorrichtung angeschlossenen Flüssigkeitsleitungen kann das Spülventil geöffnet werden und damit ein Spülvorgang eingeleitet werden.At least one flushing valve is arranged between the connections for the liquid line and the discharge line. In the closed state, the flushing valve blocks the access from the connection for a liquid path to the connection for a drainage path within the device. For the automatic flushing of liquid lines connected to the device, the flushing valve can be opened and a flushing process can thus be initiated.
Das Spülventil umfasst ein Mehrfachventil mit parallelen Ventilen. Damit kann der Flüssigkeitsstrom bzw. das durchgesetzte Volumen von Flüssigkeit von einer an die Vorrichtung angeschlossenen Flüssigkeitsstrecke während eines Spülvorganges auf einfache Weise gesteuert werden, indem eine bestimmte Anzahl an parallelen Ventilen geöffnet wird. Die parallelen Ventile, welche über den Anschluss in Verbindung mit der Flüssigkeitsstrecke stehen, ermöglichen ein Vervielfachen des Volumenstroms im Vergleich zu einem einzelnen Ventil. Insbesondere weisen die parallelen Ventile jeweils den gleichen zu durchströmenden Querschnitt auf.The flush valve comprises a multiple valve with parallel valves. In this way, the flow of liquid or the volume of liquid passed through by a liquid path connected to the device can be controlled in a simple manner during a flushing process by opening a certain number of parallel valves. The parallel valves, which are connected to the liquid path via the connection, enable the volume flow to be multiplied compared to a single valve. In particular, the parallel valves each have the same cross section to be flown through.
Vorzugsweise ist das Spülventil zwischen einem einzigen Anschluss für eine Flüssigkeitsstrecke und einem einzigen Anschluss für eine Ableitungsstrecke angeordnet, womit die Vorrichtung besonders kompakt und einfach aufgebaut werden kann.The flushing valve is preferably arranged between a single connection for a liquid path and a single connection for a drainage path, so that the device can be constructed in a particularly compact and simple manner.
Mit dem Mehrfachventil lässt sich der Volumenstrom stufenweise regeln, indem einzelne Ventile vollständig geöffnet oder geschlossen werden. Prinzipiell ist auch eine stufenlose Regelung durch teilweises Öffnen oder Schließen einzelner Ventile möglich.With the multiple valve, the volume flow can be regulated in stages by fully opening or closing individual valves. In principle, stepless control is also possible by partially opening or closing individual valves.
Insbesondere bei größeren Flüssigkeitsleitungen und großen maximalen Volumenströmen zum selbsttätigen Spülen wird im Stand der Technik ein entsprechend großes Einzelventil verwendet. Größere Ventile eignen sich jedoch gewöhnlicherweise weniger für eine Feinregulierung des Volumenstroms. Durch eine Verwendung von mehrfachen, parallel angeordneten Ventilen kann diese Problematik vermieden werden, indem bei geringen benötigten Volumenströmen nur wenige oder ein einzelnes Ventil des Mehrfachventils geöffnet wird. Eine Feinregulierung des Volumenstroms ist damit gegeben, während ohne weiteres zusätzliche Ventile geöffnet werden können um einen großen Volumenstrom bereitzustellen.In the prior art, a correspondingly large individual valve is used in particular in the case of larger liquid lines and large maximum volume flows for automatic flushing. However, larger valves are usually less suitable for fine regulation of the volume flow. By a Using multiple valves arranged in parallel, this problem can be avoided by opening only a few or a single valve of the multiple valve when the volume flows required are low. A fine regulation of the volume flow is given, while additional valves can easily be opened in order to provide a large volume flow.
Auch kann die gleiche Bauart der erfindungsgemäßen Vorrichtung für eine Vielzahl von unterschiedlich großen Flüssigkeitsstrecken eingesetzt werden. Die Anzahl der genutzten parallelen Ventile aus dem Mehrfachventil lässt sich nach der Größe der Flüssigkeitsleitung variieren, an welchem die Vorrichtung angeschlossen wird. Damit kann die Konstruktion und Herstellung von Vorrichtungen zum selbsttätigen Spülen in verschiedenen Größen oder mit Einzelventilen verschiedener Größen entfallen, was die Wirtschaftlichkeit der Vorrichtung erhöht.The same design of the device according to the invention can also be used for a large number of fluid paths of different sizes. The number of parallel valves used from the multiple valve can be varied according to the size of the liquid line to which the device is connected. This means that the design and manufacture of devices for automatic flushing in different sizes or with individual valves of different sizes can be dispensed with, which increases the cost-effectiveness of the device.
Es hat sich zudem herausgestellt, dass die Volumenströme durch die einzelnen geöffneten Ventile im Wesentlichen unabhängig vom Druck in der Flüssigkeitsleitung, etwa im Bereich von 2 bis 10 bar, erzielt werden können. Damit können sich mit der erfindungsgemäßen Vorrichtung Flüssigkeitsleitungen durch eine Wahl der Anzahl der geöffneten Ventile weitestgehend unabhängig vom Druck in der Flüssigkeitsleitung geregelt spülen lassen.It has also been found that the volume flows through the individual open valves can be achieved essentially independently of the pressure in the liquid line, for example in the range from 2 to 10 bar. With the device according to the invention, liquid lines can thus be flushed in a controlled manner largely independently of the pressure in the liquid line by selecting the number of open valves.
In einer Ausgestaltung der erfindungsgemäßen Vorrichtung weist das Mehrfachventil parallele Magnetventile auf. Magnetventile sind insbesondere durch elektronische Schaltungen ansteuerbar und damit für eine Automatisierung geeignet. Magnetventile können ebenso schnelle Schaltzeiten ermöglichen.In one embodiment of the device according to the invention, the multiple valve has parallel solenoid valves. Solenoid valves can be controlled in particular by electronic circuits and are therefore suitable for automation. Solenoid valves can also enable fast switching times.
Es hat sich herausgestellt, dass insbesondere ein 4-fach-Magnetventil geeignet ist, um eine Vielzahl von Anwendungen zum selbsttätigen Spülen abzudecken. Dabei können die vier parallelen Ventile des 4-fach-Magnetventils jeweils die gleichen Abmessungen aufweisen. Der Volumenstrom durch das Ventil kann somit durch ein komplettes Öffnen einzelner Ventile innerhalb von vier Stufen geregelt werden. Beispielsweise kommen vier Magnetventile mit einem Volumenstrom von jeweils 12 1/min (±10 %) zum Einsatz, womit der Volumenstrom je nach angeschlossener Flüssigkeitsleitung oder auch je nach Betriebsart und Spülvorgang in den Stufen 0 → 12 → 24 → 36 → 48 l/min (±jeweils 10 %) geregelt werden kann. Ein stufenloses Regeln ist aber ebenso durch ein teilweises Öffnen einzelner Magnetventile prinzipiell möglich.It has been found that a 4-way solenoid valve in particular is suitable for covering a large number of applications for automatic flushing. The four parallel valves of the 4-way solenoid valve can each have the same dimensions. The volume flow through the valve can thus be regulated within four stages by completely opening individual valves. For example four solenoid valves are used with a volume flow of 12 1 / min (± 10%) each, with which the volume flow depending on the connected liquid line or depending on the operating mode and flushing process in
Insbesondere ist es vorteilhaft, wenn das Mehrfachventil einen maximalen Volumenstrom von mindestens 30 l/min, vorzugsweise 45 l/min bereitstellt. Diese Größenordnung hat sich als für viele Größen von Flüssigkeitsleitungen und auch für große Rohrdurchmesser als angemessen herausgestellt, um Spülvorgänge mit geringen Spüldauern zu ermöglichen. Kurze Spüldauern sind zur Verminderung der Geräuschbelastung vorteilhaft.In particular, it is advantageous if the multiple valve provides a maximum volume flow of at least 30 l / min, preferably 45 l / min. This order of magnitude has been found to be appropriate for many sizes of liquid lines and also for large pipe diameters in order to enable flushing processes with short flushing times. Short flushing times are advantageous to reduce noise pollution.
Prinzipiell ist es möglich, dass der Anschluss für eine Ableitungsstrecke für eine druckbeaufschlagte Ableitungsstrecke ausgelegt ist. In einer erfindungsgemäßen Ausgestaltung der Vorrichtung ist jedoch zwischen Spülventil und dem Anschluss für eine Ableitungsstrecke ein freier Auslauf angeordnet. Damit kann ein Ablaufen der Flüssigkeit aus der Flüssigkeitsstrecke auf einfache Weise gewährleistet werden. Insbesondere ist der freie Auslauf so gestaltet, dass dieser die Erfordernisse eines freien Auslaufs des Typs AB gemäß DIN EN 1717 erfüllt. Insbesondere weist der freie Auslauf keinen kreisförmigen Querschnitt auf.In principle, it is possible that the connection for a discharge section is designed for a pressure-loaded discharge section. In an embodiment of the device according to the invention, however, a free outlet is arranged between the flushing valve and the connection for a discharge section. In this way, drainage of the liquid from the liquid path can be ensured in a simple manner. In particular, the free outlet is designed in such a way that it meets the requirements of a free outlet of type AB in accordance with DIN EN 1717. In particular, the free outlet does not have a circular cross section.
Insbesondere ist der Anschluss für eine Ableitungsstrecke mit einem Strahlregler ausgestaltet. Ein Strahlregler ist ein Bauelement, welches den Durchfluss der Flüssigkeit in Bezug auf dessen Strahlform regelt, beispielsweise in Form einer Düse. Dadurch kann insbesondere bei einem freien Auslauf die Form des austretenden freien Strahls beeinflusst, beispielsweise fokussiert werden. Ein Strahlregler ermöglicht dabei einen gleichmäßigen und gleichförmigen Abflussstrahl.In particular, the connection for a discharge path is designed with a jet regulator. A jet regulator is a component that regulates the flow of the liquid in relation to its jet shape, for example in the form of a nozzle. As a result, the shape of the exiting free jet can be influenced, for example focused, in particular in the case of a free outlet. A jet regulator enables an even and uniform discharge jet.
In einer weiteren Ausgestaltung der erfindungsgemäßen Vorrichtung ist ein Rückstaubehälter vorgesehen. Ein Rückstaubehälter, insbesondere zwischen dem Spülventil und dem Anschluss für eine Ableitungsstrecke, stellt ein Rückhaltevolumen zur Verfügung, welches beispielsweise bei einem für die Dimensionierung der Ableitungsstrecke zu hohen Volumenstrom durch das geöffnete Spülventil oder einer verstopften Ableitungsstrecke verhindert, dass die durch das Spülen abgeleitete Flüssigkeit zurück in die Flüssigkeitsleitung gedrückt wird.In a further embodiment of the device according to the invention, a backwater container is provided. A backwater container, especially between the The flushing valve and the connection for a drainage section provide a retention volume which, for example, prevents the liquid drained off by the flushing from being pushed back into the liquid line if the volume flow through the open flushing valve is too high for the dimensioning of the drainage section or a blocked drainage section.
Bei einem Rückstau füllt sich zunächst der Rückstaubehälter mit Flüssigkeit, bevor diese die Flüssigkeitsstrecke erreicht. Ein sicheres selbsttätiges Spülen wird damit unterstützt. Insbesondere bei Trinkwasserleitungen wird einer Kontamination des frischen Trinkwassers mittels des wegen eines Rückstaus zurückfließenden Abwassers vorgebeugt.In the event of a backwater, the backwater container first fills with liquid before it reaches the liquid path. This supports safe automatic flushing. In the case of drinking water pipes in particular, contamination of the fresh drinking water by means of the wastewater flowing back due to a backwater is prevented.
In einer weiteren Ausgestaltung der erfindungsgemäßen Vorrichtung ist ein Rückstausensor vorgesehen. Ein Rückstausensor überwacht, ob durch einen Rückstau bei einem Spülvorgang Flüssigkeit aus der Ableitungsstrecke zurücktritt und in die Flüssigkeitsleitung einzutreten droht. Entsprechend kann ein Rückstau vorzeitig detektiert werden und ggf. durch ein rechtzeitiges Schließen des Spülventils verhindert werden, dass Flüssigkeit aus der Ableitungsstrecke durch das Spülventil in die Flüssigkeitsstrecke gelangt. Der Rückstausensor kann insbesondere einen Schwimmersensor bzw. einen Schwimmerschalter umfassen, welcher den Flüssigkeitsstand in der Ableitungsstrecke bzw. in einem Rückstaubehälter überwacht. Denkbar ist auch die Verwendung eines Druckschalters als Rückstausensor.In a further embodiment of the device according to the invention, a backflow sensor is provided. A backflow sensor monitors whether liquid escapes from the drainage path due to a backflow during a flushing process and threatens to enter the liquid line. Correspondingly, a backflow can be detected prematurely and, if necessary, by closing the flushing valve in good time, it can be prevented that liquid from the discharge path passes through the flushing valve into the liquid path. The backflow sensor can in particular comprise a float sensor or a float switch which monitors the liquid level in the drainage path or in a backwater container. The use of a pressure switch as a backflow sensor is also conceivable.
Die Kombination eines Rückstausensors mit einem Rückstaubehälter ist dabei besonders vorteilhaft. Der Rückstaubehälter kann so bemessen und mit dem Rückstausensor angeordnet werden, dass das Volumen des Rückstaubehälters ausreicht, um das Spülventil innerhalb dessen Schaltzeit zu schließen, bevor Flüssigkeit aus der Ableitungsstrecke in die Flüssigkeitsstrecke eintreten kann. Hierbei kann ein Schwimmersensor bzw. Schwimmerschalter vorgesehen sein, um den Flüssigkeitsstand im Rückstaubehälter zu überwachen. Auch die Verwendung von einem oder mehreren Druckschaltern an der Position verschiedener Flüssigkeitsstände innerhalb des Rückstaubehälters ist möglich.The combination of a backflow sensor with a backwater container is particularly advantageous. The backwater container can be dimensioned and arranged with the backflow sensor so that the volume of the backwater container is sufficient to close the flush valve within its switching time before liquid can enter the liquid path from the discharge path. A float sensor or float switch can be provided in order to monitor the liquid level in the backwater container. Also the use of one or more pressure switches at the position of different liquid levels within the backwater container is possible.
In einer weiteren Ausgestaltung der erfindungsgemäßen Vorrichtung ist zwischen Spülventil und dem Anschluss für eine Ableitungsstrecke ein Geruchsverschluss angeordnet. Hierbei kann eine der verschiedenen Ausgestaltungen eines Siphons verwendet werden, etwa ein Röhrensiphon oder Flaschensiphon. Ein Geruchsverschluss in Form eines Ventils ist ebenfalls denkbar. Ein Geruchsverschluss verhindert ein Austreten von Gasen aus der Ableitungsstrecke, was insbesondere bei einem freien Auslauf vorteilhaft ist.In a further embodiment of the device according to the invention, an odor trap is arranged between the flushing valve and the connection for a discharge section. One of the various designs of a siphon can be used here, for example a pipe siphon or bottle siphon. An odor trap in the form of a valve is also conceivable. An odor trap prevents gases from escaping from the discharge line, which is particularly advantageous when there is a free outlet.
In einer weiteren Ausgestaltung der erfindungsgemäßen Vorrichtung umfasst das Spülventil zumindest einen Durchflussmengenbegrenzer, insbesondere zumindest einen Durchflussmengenbegrenzer in jedem Ventil des Mehrfachventils. Damit lässt sich der Durchfluss durch das Spülventil besser regulieren. Insbesondere wird dadurch unterstützt, dass die Volumenströme durch die einzelnen geöffneten Ventile im Wesentlichen unabhängig vom Druck in der Flüssigkeitsleitung geregelt werden können.In a further embodiment of the device according to the invention, the flushing valve comprises at least one flow rate limiter, in particular at least one flow rate limiter in each valve of the multiple valve. This allows the flow through the flush valve to be better regulated. In particular, this supports the fact that the volume flows through the individual open valves can be regulated essentially independently of the pressure in the liquid line.
In einer weiteren Ausgestaltung der erfindungsgemäßen Vorrichtung ist eine Steuereinheit vorgesehen, welche das Öffnen und Schließen der einzelnen Ventile im Spülventil steuert. Die Regulierung der Spülvorgänge und ggf. die Überwachung von Parametern der Vorrichtung kann über eine Steuereinheit in die Vorrichtung integriert werden. Die Steuereinheit kann Spülvorgänge über externe Parameter, beispielsweise zeitabhängig, auslösen und beenden. Die Steuereinheit kann ferngesteuert sein, insbesondere mit anderen zentralen Steuereinheiten gekoppelt sein. Auch können interne Parameter, beispielsweise die Temperatur an bestimmten Stellen innerhalb der Flüssigkeitsleitung, die Durchflussmenge oder auch der Druck, von der Steuereinheit überwacht und in eine Bemessung der Spülvorgänge, insbesondere der Anzahl der zu öffnenden parallelen Ventile im Mehrfachventil, aber auch des Zeitpunkts und der Länge der Spülvorgänge, eingehen.In a further embodiment of the device according to the invention, a control unit is provided which controls the opening and closing of the individual valves in the flushing valve. The regulation of the flushing processes and, if necessary, the monitoring of parameters of the device can be integrated into the device via a control unit. The control unit can trigger and terminate flushing processes via external parameters, for example as a function of time. The control unit can be remotely controlled, in particular it can be coupled to other central control units. Internal parameters, for example the temperature at certain points within the liquid line, the flow rate or the pressure, can also be monitored by the control unit and used in a measurement of the flushing processes, in particular the number of parallel valves to be opened in the multiple valve, but also the time and date Length of flushing processes.
In einer weiteren Ausgestaltung der erfindungsgemäßen Vorrichtung ist ein Strömungssensor vorgesehen. Der Strömungssensor kann zwischen dem Anschluss für eine Flüssigkeitsstrecke und dem Spülventil oder zwischen dem Spülventil und dem Anschluss für eine Ableitungsstrecke angeordnet sein und eine Strömung der Flüssigkeit, möglicherweise auch den Druck und den Durchfluss, aufnehmen. Ein Strömungssensor zwischen dem Anschluss für eine Flüssigkeitsstrecke und dem Spülventil kann insbesondere zur Leckageüberwachung dienen und beispielsweise bei einem unbeabsichtigt nicht vollständig geschlossenen oder undichten Spülventil den Durchfluss von Flüssigkeit detektieren.In a further embodiment of the device according to the invention, a flow sensor is provided. The flow sensor can be arranged between the connection for a liquid path and the flushing valve or between the flushing valve and the connection for a discharge path and record a flow of the liquid, possibly also the pressure and the flow. A flow sensor between the connection for a liquid path and the flushing valve can be used, in particular, to monitor leaks and, for example, detect the flow of liquid if the flushing valve is unintentionally not completely closed or leaking.
Beschrieben wird weiter ein System von Flüssigkeitsleitungen, insbesondere von Trinkwasserleitungen, mit einer erfindungsgemäßen Vorrichtung, mit einer an die Vorrichtung angeschlossenen Flüssigkeitsstrecke und mit einer an die Vorrichtung angeschlossenen Ableitungsstrecke.A system of liquid lines, in particular drinking water lines, with a device according to the invention, with a liquid path connected to the device and with a drainage path connected to the device is also described.
Die Flüssigkeitsstrecke umfasst dabei eine oder mehrere Ringleitungen oder Linearleitungen, welche Flüssigkeit führen. Insbesondere weist die Flüssigkeitsstrecke entlang der Leitungen einen oder mehrere Verbraucher wie Hähne oder Armaturen zu Ableitungen auf. Mit der erfindungsgemäßen Vorrichtung kann wie oben beschrieben ein selbsttätiges Spülen der Flüssigkeitsstrecke bewirkt werden. Ein Öffnen des Spülventils stellt einen Flüssigkeitsweg zwischen der Flüssigkeitsstrecke und der Ableitungsstrecke her, womit die Flüssigkeit aus der Flüssigkeitsstrecke zumindest teilweise abgeleitet bzw. erneuert werden kann, wenn die Flüssigkeitsstrecke an eine Flüssigkeitsquelle angeschlossen ist. Bei einem Spülvorgang kann die Anzahl der geöffneten parallelen Ventile aus dem Mehrfachventil reguliert werden, beispielsweise angepasst an die Größe der Flüssigkeitsstrecke.The liquid path comprises one or more ring lines or linear lines which carry liquid. In particular, the liquid path has one or more consumers such as taps or fittings for discharge lines along the lines. With the device according to the invention, as described above, the liquid path can be automatically flushed. Opening the flush valve creates a liquid path between the liquid path and the discharge path, with which the liquid can be at least partially diverted or renewed from the liquid path when the liquid path is connected to a liquid source. During a flushing process, the number of parallel valves that are open can be regulated from the multiple valve, for example adapted to the size of the liquid path.
Für die Ausgestaltungen des Systems wird auf die obigen Ausführungen zur erfindungsgemäßen Vorrichtung verwiesen. Zudem ergibt sich bei einem System die Möglichkeit, Sensoren an verschiedenen Stellen der Flüssigkeitsstrecke anzuordnen, um mit den Messwerten Einfluss auf den Spülvorgang zu nehmen. Beispielsweise kann die Zuleitung von einer Flüssigkeitsquelle, aber auch einzelne Verbraucher oder Seitenstränge der Flüssigkeitsstrecke, mit Sensoren überwacht werden und die Menge der abzuleitenden Flüssigkeit und auch die Anzahl der zu öffnenden parallelen Ventile des Mehrfachventils innerhalb eines Spülvorgangs ermittelt werden.For the refinements of the system, reference is made to the above statements on the device according to the invention. In addition, there is the Possibility of arranging sensors at different points in the liquid path in order to influence the flushing process with the measured values. For example, the supply line from a liquid source, but also individual consumers or side lines of the liquid path, can be monitored with sensors and the amount of liquid to be drained and also the number of parallel valves of the multiple valve to be opened can be determined within a flushing process.
Gemäß einer weiteren Lehre der vorliegenden Erfindung wird oben genannte Aufgabe durch ein Verfahren zum selbsttätigen Spülen von Flüssigkeitsleitungen, insbesondere von Trinkwasserleitungen, unter Verwendung einer erfindungsgemäßen Vorrichtung dadurch gelöst, dass Spülvorgänge vorgesehen sind, bei welchen das Mehrfachventil zum Spülen einer Flüssigkeitsstrecke geöffnet und nach einer Spüldauer wieder geschlossen wird.According to a further teaching of the present invention, the above-mentioned object is achieved by a method for automatically flushing liquid lines, in particular drinking water lines, using a device according to the invention in that flushing processes are provided in which the multiple valve for flushing a liquid path is opened and after a flushing period is closed again.
Wird die Flüssigkeitsstrecke nicht kontinuierlich benutzt, können sich unter Umständen Ablagerungen oder Verunreinigungen bilden. Ein regelmäßiges Spülen der Flüssigkeitsleitung beugt diesen Gefahren vor. Das erfindungsgemäße Verfahren umfasst solche Spülvorgänge, um Flüssigkeit aus der Flüssigkeitsstrecke der Ableitungsstrecke zuzuführen.If the liquid path is not used continuously, deposits or impurities may form under certain circumstances. Regular flushing of the liquid line prevents these dangers. The method according to the invention comprises such rinsing processes in order to supply liquid from the liquid path to the discharge path.
Das Öffnen und Schließen des Mehrfachventils kann insbesondere über eine Steuereinheit gesteuert werden, insbesondere zeitabhängig, temperaturabhängig und/oder abhängig vom Durchfluss durch die Flüssigkeitsstrecke.The opening and closing of the multiple valve can in particular be controlled via a control unit, in particular as a function of time, temperature and / or as a function of the flow through the liquid path.
Insbesondere wird zeitabhängig, temperaturabhängig und/oder abhängig vom Durchfluss durch die Flüssigkeitsstrecke die Anzahl der in einem Spülvorgang zu öffnenden Ventile im Mehrfachventil festgelegt. Der Volumenstrom von der Flüssigkeitsstrecke durch das Spülventil in die Ableitungsstrecke kann damit reguliert werden. Die Anzahl der zu öffnenden Ventile ist an das zu spülende Volumen angepasst. Weiter kann die Anzahl der zu öffnenden Ventile an die Spüldauer angepasst werden.In particular, the number of valves to be opened in a flushing process in the multiple valve is determined as a function of time, temperature and / or as a function of the flow through the liquid path. The volume flow from the liquid line through the flushing valve into the discharge line can thus be regulated. The number of valves to be opened is adapted to the volume to be flushed. The number of valves to be opened can also be adapted to the flushing duration.
In einer weiteren Ausgestaltung des erfindungsgemäßen Verfahrens wird ein Spülvorgang automatisch bei einem Rückstau beendet. Ein Rückstau kann von einem Rückstausensor detektiert werden und ein automatisches Schließen des Spülventils herbeiführen, um ein Eindringen von Flüssigkeit aus der Ableitungsstrecke in die Flüssigkeitsstrecke zu verhindern. Insbesondere bei Trinkwasserleitungen wird damit einer Kontamination des frischen Trinkwassers durch zurückfließendes Abwasser vorgebeugt.In a further embodiment of the method according to the invention, a flushing process is ended automatically in the event of a backwater. A backflow can be detected by a backflow sensor and cause the flush valve to close automatically in order to prevent liquid from penetrating the drainage path into the liquid path. In the case of drinking water pipes in particular, this prevents contamination of the fresh drinking water by backflowing wastewater.
Bezüglich weiterer Vorteile und Ausgestaltungen des erfindungsgemäßen Verfahrens wird auf die obigen Ausführungen und Unteransprüche bezüglich der erfindungsgemäßen Vorrichtung verwiesen sowie auf die Zeichnung. In der Zeichnung zeigen:
- Fig. 1
- eine schematische Ansicht eines ersten Ausführungsbeispiels der erfindungsgemäßen Vorrichtung in einer Schnittdarstellung,
- Fig. 2
- eine perspektivische, schematische Ansicht des ersten Ausführungsbeispiels der erfindungsgemäßen Vorrichtung,
- Fig. 3
- eine schematische Ansicht eines zweiten Ausführungsbeispiels der erfindungsgemäßen Vorrichtung,
- Fig. 4
- eine perspektivische, schematische Ansicht des zweiten Ausführungsbeispiels der erfindungsgemäßen Vorrichtung und
- Fig. 5
- eine schematische Ansicht eines Ausführungsbeispiels eines Systems.
- Fig. 1
- a schematic view of a first embodiment of the device according to the invention in a sectional view,
- Fig. 2
- a perspective, schematic view of the first embodiment of the device according to the invention,
- Fig. 3
- a schematic view of a second embodiment of the device according to the invention,
- Fig. 4
- a perspective, schematic view of the second embodiment of the device according to the invention and
- Fig. 5
- a schematic view of an embodiment of a system.
Das Spülventil 8 umfasst erfindungsgemäß ein Mehrfachventil, in diesem Ausführungsbeispiel in Form eines 4-fach Magnetventils. Das 4-fach Magnetventil umfasst insgesamt vier magnetgesteuerte Ventile 10 mit gleichem Querschnitt, von denen in der Ansicht der
Die Vorrichtung 2 umfasst weiter einen Rückstaubehälter 12, welcher zwischen Spülventil 8 und dem Anschluss 6 an eine Ableitungsstrecke angeordnet ist. Der Rückstaubehälter 12 stellt ein Rückhaltevolumen zur Verfügung, welches beispielsweise bei einem für die Ableitungsstrecke zu hohen Volumenstrom durch das geöffnete Spülventil 8 oder einer verstopften Ableitungsstrecke verhindert, dass durch das Spülen abgeleitete Flüssigkeit zurück in die Flüssigkeitsleitung gedrückt wird. Bei einem Rückstau füllt sich zunächst der Rückstaubehälter 12 mit Flüssigkeit, bevor diese die Flüssigkeitsstrecke erreicht.The
Ein freier Auslauf 14 ist zwischen Spülventil 8 und dem Anschluss 6 an eine Ableitungsstrecke angeordnet. Damit kann ein Ablaufen der Flüssigkeit aus der Flüssigkeitsstrecke bei geöffnetem Spülventil 8 auf einfache Weise gewährleistet werden. Ein Strahlregler 16 regelt den Durchfluss der Flüssigkeit in Bezug auf dessen Strahlform und Durchfluss. Der Strahlregler 16 ermöglicht einen gleichmäßigen und gleichförmigen Abflussstrahl im freien Auslauf 14.A
Zwischen Spülventil 8 und dem Anschluss 6 für eine Ableitungsstrecke ist ein Geruchsverschluss 18 angeordnet. Der Geruchsverschluss 18 verhindert ein Austreten von Gasen aus der Ableitungsstrecke, insbesondere in den freien Auslauf 14.An
Die Vorrichtung weist einen Rückstausensor 20 auf, welcher überwacht, ob durch einen Rückstau bei einem Spülvorgang Flüssigkeit aus der Ableitungsstrecke zurücktritt und in die Flüssigkeitsleitung einzutreten droht, in dem der Flüssigkeitsstand im Rückstaubehälter 12 bzw. im freien Auslauf 14 detektiert wird. Wird ein Rückstau detektiert durch den Rückstausensor 20 detektiert, so kann durch ein Schließen des Spülventil 8 verhindert werden, dass Flüssigkeit aus der Ableitungsstrecke in die Flüssigkeitsstrecke gelangt. Als Rückstausensor 20 kann ist ein Schwimmersensor bzw. ein Schwimmerschalter vorgesehen.The device has a
Der Rückstaubehälter 12 ist so bemessen, dass das Volumen des Rückstaubehälters 12 ausreicht, um bei einem Rückstau das Spülventil 8 innerhalb dessen Schaltzeit zu schließen, bevor Flüssigkeit aus der Ableitungsstrecke eintreten kann.The
Ein Strömungssensor 22 ist zwischen dem Anschluss 4 für eine Flüssigkeitsstrecke und dem Spülventil 8 angeordnet und kann eine Strömung der Flüssigkeit detektieren. Dies kann für die Überwachung eines Spülvorgangs und insbesondere zur Leckageüberwachung dienen. Schließt beispielsweise das Spülventil 8 nicht vollständig oder ist undicht, so wird eine Strömung am Strömungssensor 22 aufgenommen und das Leck wird erkannt.A
Eine Steuereinheit 24 steuert das Öffnen und Schließen der einzelnen Ventile 10 im Spülventil 8. Die Steuereinheit 24 nimmt ebenso die Informationen von Rückstausensor 20 und Strömungssensor 22 auf. Die Steuereinheit 24 automatisiert die Spülvorgänge und kann darüber hinaus auch das Spülventil 8 automatisch schließen, wenn der Rückstausensor 20 einen Rückstau detektiert.A
Mit der Vorrichtung 2 lässt sich nun dieser Problematik vorbeugen. Die Vorrichtung 2 ermöglicht ein selbsttätiges Spülen und damit einen zumindest teilweisen Austausch der Flüssigkeit in der Flüssigkeitsstrecke 30. Dabei können eine oder mehrere der Ventile 10 im Spülventil 8 je nach Größe der Flüssigkeitsstrecke 30 und je nach vom Spülvorgang zu erzielenden Volumen geöffnet und damit ein Spülvorgang ausgelöst werden.This problem can now be prevented with the
Der Rückstaubehälter 12 verhindert bei einem Spülvorgang mit einem Rückstau in der Ableitungsstrecke 32 ein Zurücklaufen der Flüssigkeit aus der Ableitungsstrecke 32, da sich zunächst das Rückhaltevolumen des Rückstaubehälters 12 füllt. Weiter kann der Rückstausensor 20 dazu verwendet werden, das Spülventil 8 automatisch im Falle eines Rückstaus zu schließen.During a flushing process with a backwater in the
Claims (12)
- Device for the automatic flushing of liquid lines, in particular drinking water lines,- with at least one connection (4) for a liquid conduit,- with at least one connection (6) for a drainage conduit, and- with a flushing valve (8) that is arranged between the connections (4, 6) for the liquid conduit and drainage conduit,- wherein the flushing valve (8) comprises a multiple valve with parallel valves (10), wherein the parallel valves (10) are in communication with the fluid path via the connection (4) and allowing a multiplication of the volume flow compared to a single valve,- wherein a control unit (24) is provided, which controls the opening and closing of the individual valves (10) in the flushing valve (8), wherein the control unit is configured to vary the number of parallel opened valves (10) from the multiple valve in a flushing procedure, to which the device is connected, wherein the number of valves to be opened is adapted to the volume to be drained, characterised in that- a free discharge (14) is arranged between the flushing valve (8) and the connection (6) for a drainage conduit.
- Device according to Claim 1,
characterised in that
the multiple valve has parallel magnetic valves (10), in particular a quadruple magnetic valve. - Device according to Claim 1 or 2,
characterised in that
a free discharge (14) is arranged with a jet controller (16). - Device according to any one of Claims 1 to 3,
characterised in that
a backflow vessel (12) is provided. - Device according to any one of Claims 1 to 4,
characterised in that
a backflow sensor (20), in particular comprising a floating sensor, is provided. - Device according to any one of Claims 1 to 5,
characterised in that
an odour trap (18) is arranged between the flushing valve (8) and the connection (6) for a drainage conduit (6). - Device according to any one of Claims 1 to 6,
characterised in that
the flushing valve (8) comprises at least one flow limiter, in particular at least one flow limiter in each valve (10) of the multiple valve. - Device according to any one of Claims 1 to 7,
characterised in that
a flow sensor (22) is provided. - Method for the automatic flushing of liquid lines, in particular drinking water lines,
using a device according to any one of Claims 1 to 8,- wherein flushing procedures are envisaged in which the multiple valve is opened for flushing a liquid conduit and is closed again after a flushing duration and- wherein in that the opening and closing of the individual valves (10) in the flushing valve (8) are controlled via a control unit, wherein in a flushing procedure the number of parallel opened valves (10) from the multiple valve is varied, wherein the number of valves to be opened is adapted to the volume to be drained,
characterised in that- the water is drained to a free discharge (14) which is arranged between the flushing valve (8) and the connection (6) for a drainage conduit. - Method according to Claim 9,
characterised in that
the opening and closing of the multiple valve is controlled via a control unit, in particular in a time-dependent, temperature-dependent manner and/or depending on the flow through the liquid conduit. - Method according to Claim 10,
characterised in that
the number of valves in the multiple valve to be opened in a flushing procedure is fixed in a time-dependent, temperature-dependent manner and/or depending on the flow through the liquid conduit. - Method according to any one of Claims 9 to 11,
characterised in that
a flushing procedure is automatically ended in case of a backflow.
Applications Claiming Priority (2)
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DE102015113886.7A DE102015113886A1 (en) | 2015-08-21 | 2015-08-21 | Device, system and method for automatic flushing with multiple valve |
PCT/EP2016/068873 WO2017032584A1 (en) | 2015-08-21 | 2016-08-08 | Device, system and method for automatic flushing with a multiple valve |
Publications (2)
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EP3337931A1 EP3337931A1 (en) | 2018-06-27 |
EP3337931B1 true EP3337931B1 (en) | 2021-06-23 |
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EP16751277.1A Active EP3337931B1 (en) | 2015-08-21 | 2016-08-08 | Device and method for automatic supply pipe flushing with multiple valve |
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US (1) | US10975553B2 (en) |
EP (1) | EP3337931B1 (en) |
CN (1) | CN107923160B (en) |
DE (1) | DE102015113886A1 (en) |
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DE202017006045U1 (en) * | 2017-11-22 | 2019-02-25 | Gebr. Kemper Gmbh + Co. Kg Metallwerke | Device for monitoring the flushing activities of a water pipe |
JP6916490B2 (en) * | 2018-01-04 | 2021-08-11 | アサヒビール株式会社 | Liquid sales management system |
US10610907B1 (en) * | 2018-04-06 | 2020-04-07 | Mainstream Engineering Corporation | System and method for preventing condensate drain pan flooding, detecting condensate water overflow and shutting off an air conditioner or heat pump to prevent further flooding |
CN110306628A (en) * | 2019-07-10 | 2019-10-08 | 德房家(中国)管道系统有限公司 | A kind of automatic flush valve |
ES2882833B2 (en) * | 2020-06-02 | 2022-04-18 | Sedal S L | LIQUID CONDUCTION ASSEMBLY AND APPARATUS THAT CONTAINS IT |
CN114162926A (en) * | 2020-12-10 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Water purification equipment, waterway system thereof and cleaning method of membrane stack |
DE102021105677A1 (en) | 2021-03-09 | 2022-09-15 | Uponor Innovation Ab | rinse station |
US11952754B2 (en) * | 2022-04-04 | 2024-04-09 | South Bay Plumbing, Inc. | Backflow box and method |
CN115341620B (en) * | 2022-08-04 | 2023-03-17 | 上海昊岳泵业制造有限公司 | Non-negative pressure water supply equipment with automatic pipe network pressurization and flow stabilization functions |
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US20180238029A1 (en) | 2018-08-23 |
WO2017032584A1 (en) | 2017-03-02 |
US10975553B2 (en) | 2021-04-13 |
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CN107923160A (en) | 2018-04-17 |
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CN107923160B (en) | 2022-02-25 |
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