EP3337931B1 - Dispositif et procede destine au lavage automatique de conduites d'eau avec vanne multiple - Google Patents

Dispositif et procede destine au lavage automatique de conduites d'eau avec vanne multiple Download PDF

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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
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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.)
Active
Application number
EP16751277.1A
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German (de)
English (en)
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EP3337931A1 (fr
Inventor
Ulrich Kuhbier
Verena Stelthove
Tobias KLOSTA
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.)
Viega Technology GmbH and Co KG
Original Assignee
Viega Technology GmbH and Co KG
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Publication of EP3337931A1 publication Critical patent/EP3337931A1/fr
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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
    • 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 or 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.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning In General (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Domestic Plumbing Installations (AREA)

Claims (12)

  1. Dispositif pour rinçage autonome de conduites de liquide, notamment d'eau potable,
    - avec au moins un raccord (4) pour une conduite de liquide,
    - avec au moins un raccord (6) pour une conduite d'évacuation et
    - avec une vanne de rinçage (8) disposée entre les raccords (4, 6) pour la conduite de liquide et la conduite d'évacuation,
    - où la vanne de rinçage (8) comprend une vanne multiple avec des vannes (10) disposées en parallèle côte à côte, où les vannes parallèles (10) sont en communication avec la conduite de liquide via le raccord (4) et permettent une multiplication du débit volumique par rapport à une vanne unique,
    - où une unité de commande (24) est prévue, laquelle commande l'ouverture et la fermeture des vannes individuelles (10) dans la vanne de rinçage (8), l'unité de commande faisant varier le nombre de vannes parallèles ouvertes (10) de la vanne multiple lors d'une opération de rinçage en fonction de la taille de la conduite de liquide à laquelle le dispositif est raccordé, le nombre de vannes (10) à ouvrir étant adapté au volume à rincer,
    caractérisé
    - en ce qu'une sortie libre (14) est disposée entre la vanne de rinçage (8) et le raccord (6) pour une conduite d'évacuation.
  2. Dispositif selon la revendication 1,
    caractérisé
    en ce que la vanne multiple comporte des vannes magnétiques parallèles (10), en particulier une vanne magnétique à 4 voies.
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé
    en ce que la sortie libre (14) est munie d'un régulateur de jet (16).
  4. Dispositif selon l'une quelconque des revendications 1 à 3,
    caractérisé
    en ce qu'un bac à reflux (12) est prévu.
  5. Dispositif selon l'une des revendications 1 à 4,
    caractérisé
    en ce qu'un capteur de reflux (20) est prévu, lequel comprenant en particulier un capteur à flotteur.
  6. Dispositif selon l'une quelconque des revendications 1 à 5,
    caractérisé
    en ce qu'un piège à odeurs (18) est disposé entre la vanne de rinçage (8) et le raccord (6) pour une conduite d'évacuation.
  7. Dispositif selon l'une des revendications 1 à 6,
    caractérisé
    en ce que la vanne de rinçage (8) comprend au moins un limiteur de débit, en particulier au moins un limiteur de débit dans chaque vanne (10) de la vanne multiple.
  8. Dispositif selon l'une quelconque des revendications 1 à 7,
    caractérisé
    en ce qu'un capteur de débit (22) est prévu.
  9. Procédé pour rinçage autonome de conduites de liquide, en particulier de conduites d'eau potable,
    - avec un dispositif selon l'une des revendications 1 à 8,
    - dans lequel des opérations de rinçage sont prévues, lors desquelles la vanne multiple est ouverte pour rincer une conduite de liquide et est refermée après une période de rinçage,
    - dans lequel l'ouverture et la fermeture des vannes individuelles (10) dans la vanne de rinçage (8) sont commandées par une unité de commande, où le nombre de vannes parallèles ouvertes (10) de la vanne multiple lors d'une opération de rinçage est modifié selon la taille de la conduite de liquide à laquelle le dispositif est connecté,
    - où le nombre de vannes (10) à ouvrir est adapté au volume à rincer,
    caractérisé
    - en ce que l'eau est évacuée dans la sortie libre (14) disposée entre la vanne de rinçage (8) et le raccord (6) pour une conduite d'évacuation.
  10. Procédé selon la revendication 9,
    caractérisé
    en ce que l'ouverture et la fermeture de la vanne multiple sont commandées par une unité de commande, en particulier en fonction du temps, en fonction de la température et/ou en fonction du débit dans la conduite de liquide.
  11. Procédé selon la revendication 10,
    caractérisé
    en ce que le nombre de vannes à ouvrir dans la vanne multiple lors d'une opération de rinçage est déterminé en fonction du temps, en fonction de la température et/ou en fonction du débit dans la conduite de liquide.
  12. Procédé selon l'une quelconque des revendications 9 à 11,
    caractérisé
    en ce qu'une opération de rinçage est automatiquement interrompue en cas de reflux.
EP16751277.1A 2015-08-21 2016-08-08 Dispositif et procede destine au lavage automatique de conduites d'eau avec vanne multiple Active EP3337931B1 (fr)

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US10975553B2 (en) 2021-04-13
CN107923160B (zh) 2022-02-25
DK3337931T3 (da) 2021-08-02
CN107923160A (zh) 2018-04-17
DE102015113886A1 (de) 2017-02-23
WO2017032584A1 (fr) 2017-03-02
US20180238029A1 (en) 2018-08-23
EP3337931A1 (fr) 2018-06-27

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