WO2015197255A1 - Dispositif et procédé de surveillance de l'état d'hygiène d'une installation d'eau potable - Google Patents

Dispositif et procédé de surveillance de l'état d'hygiène d'une installation d'eau potable Download PDF

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Publication number
WO2015197255A1
WO2015197255A1 PCT/EP2015/060383 EP2015060383W WO2015197255A1 WO 2015197255 A1 WO2015197255 A1 WO 2015197255A1 EP 2015060383 W EP2015060383 W EP 2015060383W WO 2015197255 A1 WO2015197255 A1 WO 2015197255A1
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WO
WIPO (PCT)
Prior art keywords
display
sensor
water
status
monitoring device
Prior art date
Application number
PCT/EP2015/060383
Other languages
German (de)
English (en)
Inventor
Peter Arens
Tobias KLOSTA
Roland Obrist
Original Assignee
Oblamatik Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oblamatik Ag filed Critical Oblamatik Ag
Publication of WO2015197255A1 publication Critical patent/WO2015197255A1/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, valves, in the pipe systems
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons, valves, in the pipe systems
    • E03B7/072—Arrangement of flowmeters
    • 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
    • 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
    • E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
    • 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
    • E03C1/04—Water-basin installations specially adapted to wash-basins or baths
    • E03C2001/0418—Water-basin installations specially adapted to wash-basins or baths having temperature indicating means

Definitions

  • a monitoring device comprises at least one power supply, a sensor, a controller and a display, which are each operatively connected to each other.
  • the hygienic status of a drinking water installation is determined primarily by microbiological examinations at sampling points.
  • Drinking water samples are taken, among other things, via sampling valves from the drinking water installation in the building or at the drinking water heater, with the vast majority of withdrawals via sanitary fittings taking place in the periphery.
  • Studies using growth cultures for the detection of microorganisms have the disadvantage that they are very time consuming and costly. Due to the large amount of work, only selected sites are used, always in the hope that these samples are representative of the entire installation. However, recent research shows that today's number of sample points do not always guarantee this.
  • the object of the present invention is to propose an alternative device or an alternative method for monitoring the hygienic status of a drinking water installation, even laypersons without special technical training or normal operating personnel using this device or can apply this method.
  • This object is achieved according to a first aspect with a device for monitoring the hygienic status of a drinking water installation according to the features of claim 1.
  • This object is achieved according to a second aspect with a method for monitoring the hygienic status of a drinking water installation according to the features of claim 13.
  • Preferred developments of the device according to the invention or of the method according to the invention as well as further inventive features emerge in each case from the dependent claims.
  • the hygienic status of the water tap of a drinking water installation can be recorded on the basis of physical parameters such as frequency of use, duration of use, amount of use and / or course of the water temperature and simply displayed.
  • the number of microbiological water examinations can be minimized since a high number of physical parameters are known, which indirectly reflect the hygiene status.
  • the physical parameters such. Temperature, water change, duration of water change, e.g. via optical signals or the display of values directly at the point of use or centrally via the building automation system.
  • a documentation module datalogger
  • a documentation module can also record a large number of events and, if necessary, also enter them into a calendar in a decentralized or centralized manner.
  • the simplicity of the device according to the invention makes it possible for all withdrawal points a drinking water installation, and on demand at selected points in distribution and risers, depending to provide a cost-effective device that easy detection, evaluation and visualization of the user behavior and hygienic required temperature collective allows. This allows a user to directly control potential vulnerabilities in a drinking water installation or inadequate use (eg during a walk-through or centrally via a building automation system or a central computer) and, if necessary, provide technical countermeasures in the short term before hygienic risks occur.
  • the hygiene sensor and the documentation module can also be used separately or jointly as an option to control electronic components of the drinking water installation for automatic water change, for water distribution in the drinking water installation or for temperature control "cold” and "warm".
  • the monitoring device according to the invention or the monitoring method according to the invention will be explained in more detail on the basis of schematic drawings which do not limit the scope of the present invention and represent only exemplary embodiments. Showing:
  • Figure 1 is a schematic view of a device for monitoring the hygienic status of a drinking water installation.
  • FIG. 2 shows a simple variant of a display with a single optical element for the status display when monitoring a cold water removal point or a hot water removal point; an improved variant of a display with a plurality of optical elements for the status display when monitoring a cold water / hot water extraction point.
  • the monitoring device 1 for monitoring the hygienic status of a drinking water installation 2 with at least one water tapping point 3 in its simplest form comprises at least one power supply 4, a sensor 5, a controller 6 and a display 7 Power supply 4, the sensor 5, the controller 6 and the display 7 are each operatively connected to each other.
  • An operative connection in the sense of the present invention is understood to be any connection between at least two elements of the monitoring device 1 which are necessary for the proper functioning of the monitoring device 1. So are the active connections between the power supply 4 and the
  • the operative connection between the controller 6 and the display 7 can also be designed as a wired or conductor-connected electrical connection (and preferably) as a wireless connection.
  • a wireless connection a person skilled in the art will be familiar with the market standard wireless connections, such as e.g. Select WiFi, bluetooth, LAN etc.
  • the controller 6 is preferably made e.g. on the sensor 5, under the water tap 3, on the corner valve 10 or externally “surface-mounted” or “flush-mounted”. Wasserent Spotifystellen 3 are any for the purchase of drinking water from the drinking water distribution network or from the drinking water installation 2 suitable fittings and faucets for garden fountains, drinking fountains, sinks, kitchen combinations, showers, bathtubs and the like.
  • the power supply 4 is preferably designed as a power supply (for example for connection to a domestic electrical network), as an electrical storage (equipped with electric batteries or accumulators), or as a regenerative or alternative power supply (with technology based on light, temperature differences or turbines).
  • the senor 5 is designed to detect the use of the water extraction point 3 and to emit sensor signals 8 to the controller 6.
  • it is a sensor 5 for detecting a temperature at the drinking water installation 2 or at the water tapping point 3.
  • the sensor 5 can behind the wall to which the water tap 3 is attached to a riser, at the corner valve 10 or at the inlet to the water tap 3 are turned.
  • the sensor 5 is attached to an angle valve 10 (see Fig. 1) for fresh water supply to the water tap 3 or on a line 11 of the drinking water installation 2.
  • a fresh water supply can be configured as a cold water supply 14 or as a hot water supply 15.
  • the sensor 5 or more sensors 5, 5 ⁇ can also be arranged, for example, in a wall of the water pipes; Particularly important in sensors for measuring the pH or the electrical conductivity of the water in a cold water or hot water supply 14,15 that their detection elements are arranged in direct contact with the water.
  • two detection elements of a sensor 5 may be diametrically opposed with respect to the water pipe, or may also be arranged coaxially one after the other in the flow direction.
  • the skilled expert knows how to arrange such sensors or their detection elements.
  • the controller 6 is designed to evaluate the sensor signals 8 supplied by the sensor 5 on the basis of predetermined selection criteria.
  • Exemplary selection criteria are in particular:
  • a temperature change ⁇ during a certain period of time (e.g.
  • electrical conductivity eg +/- 30 pS / cm, ie microsiemens per centimeter
  • pH value eg +/- pH 0.1 at a target value of pH 6-7
  • a qualified water change (that is to say a use which in sum corresponds to at least the volume of the monitored pipeline length), which is characterized by:
  • a reset which is characterized by or is allowed z.
  • z For example:
  • Detecting a thermal disinfection, z For example, if the removal of water is above 70 ° C for 3 minutes;
  • Temperature windows for cold water which are partly country-specific characterized by temperatures:
  • T K 3> 25 ° C may be critical (RED indicator).
  • Temperature window for hot water which are partly country-specific characterized by certain temperatures or temperature ranges: z.
  • TWI-EU of ⁇ 50 ° C may be critical (RED indicator);
  • NL Netherlands
  • TWI-NL of ⁇ 55 ° C may be critical (RED indicator);
  • the temperature of the hot water flowing out of the water tap 3 can be measured.
  • the experts disagree on the minimum duration of maintaining a certain maximum temperature when drawing hot water some are satisfied with simply reaching a temperature of, for example, 55 ° C while the others maintain such a temperature during require at least 30 seconds.
  • the controller 6 is also designed for outputting status signals 9 corresponding to the current usage and the selection criteria.
  • the display 7 is preferably designed to display these status signals 9.
  • the controller 6 can optionally forward the status and other information to external locations such as the building management system, central computer and / or smartphones.
  • the display 7 is preferably made of optical elements 12 (such as LED or OLED displays) which indicate the current status. It is also possible to use displays (ie LED or OLED arrays).
  • the display 7 may also include acoustic elements 13, such as speakers, beepers, whistles and the like.
  • the display 7 may also include parts of a computer 18 or central computer (screen, printer, etc.).
  • FIG. 2 shows a simple variant of a display 7 with a single optical element 12 for the status display when monitoring a cold water removal point or a hot water removal point.
  • the optical element 12 is designed as RGB LED or RGB OLED, so that with a single optical element, for example, the three colors GREEN, YELLOW and RED can be displayed.
  • a) or a qualified water change f) or a temperature window for cold water can be monitored with respect to the time windows ti, t 2 and t3 and the corresponding status are displayed.
  • the qualified water change f) or the observance of a temperature not exceeding 20 ° C is given a higher significance than proof of use a).
  • proof of use a For example, only the completion of a qualified water change f) may be detected and monitored so that failure to locate it during the time window ti would render the display to YELLOW and not occur during the time window t 2 to RED. Displaying a failure to find a use a) or entering another temperature window (during time slots ti and t 2 , respectively) would be indicated accordingly (see above).
  • FIG. 3 shows an exemplary, improved variant of a display 7 with a plurality of optical elements for the status display when monitoring a cold water / hot water extraction point. It is obvious that in this case one side of the display 7 for the cold water supply 14 and the other side of the display 7 for the hot water supply 15 is reserved. For each of these water supplies 14,15 for a water tap 3 three optical elements 12 are provided, for. B. an RGB LED 12 (T) for the temperature in or at the water supply 14,15, a RGB LED 12 (N) for the use of the same and an RGB LED 12 (I) for the inspection.
  • T an RGB LED 12
  • N for the use of the same
  • I RGB LED 12
  • a use a) and a qualified water change f) or a temperature window for cold water respectively monitored with respect to the time windows ti, t 2 and t3 and the corresponding status is displayed.
  • the display 12 (T) is set to RED.
  • An active display 12 (I) means that (even after a qualified water change f has been completed in the meantime) an inspection of the incoming water pipe should be carried out. Such an inspection may mean, for example, that the entire supply water line 14,15 (thermal and / or chemical) are disinfected got to. Only after a completed inspection in accordance with the appropriate part (14,15) of the display 7 can be reset, for which purpose a special key 19 must be used.
  • This key 19 is preferably in the hands of a person responsible for the inspection and can be designed, for example, as a beard key, as a magnetic key, as a key with an integrated memory chip, or as any combination of such key types.
  • Resetting with the key deletes the RGB LED 12 (I) and sets the other two RGB LEDs 12 (T) and 12 (N) to GREEN.
  • ti, t 2 and t3 results in a permanent monitoring of the hygienic status of a drinking water installation 2 with at least one water tap 3.
  • the additional use of an inspection function also results in a long-term monitoring with memory function, which reminds you of a previously inadequate status, even if the temperature display and the usage indicator are currently GREEN.
  • the display 7 may comprise further optical elements 12, such as an LED 12 (B) for the state of charge of the battery or the accumulator, an LED 12 (WLAN) for the operating state of a wireless network.
  • the display 7 may comprise a brightness sensor 5 ", which allows better visibility of the status display (during waking times) and / or a dimmed luminance of the status display (at bedtime), and which may be used as a further reference source for a detected usage pattern of a water collection point can be.
  • the present invention comprises the following embodiments of the monitoring method:
  • the monitoring device 1 comprises a power supply 4, a control unit 6, one or more sensors 5.5 ⁇ (eg, temperature, flow, chlorine, conductivity sensor) and one or more status LEDs 12 for the in the time windows ti, t 2 , t3 measured hot water temperature and cold water temperature.
  • sensors 5.5 ⁇ eg, temperature, flow, chlorine, conductivity sensor
  • status LEDs 12 for the in the time windows ti, t 2 , t3 measured hot water temperature and cold water temperature.
  • warning lamps see Fig. 3 for faults, the state of charge of the battery and or inspection (whether it has given in a period of eg the last 7 days critical temperatures and / or stagnation times) available.
  • the status LED 12 (T) of the display 7 is YELLOW for hot water and / or cold water.
  • the status LED 12 (T) of the display 7 is RED for hot water and / or cold water.
  • a measure for a hygienically sufficient water change is the complete replacement of the water volume in the monitored line section. This is detected, for example, by a temperature, volume, conductivity, chlorine concentration or pH value measurement.
  • the status LED 12 (T) of the display 7 remains GREEN for hot water and / or cold water.
  • T w2 corresponding detected temperature for used cold water and / or hot water lines, it could have been a hygienic critical temperature.
  • the status LED 12 (T) of the display 7 is yellow for hot water and / or cold water.
  • the status LED 12 (T) of the display 7 is RED for hot water and / or cold water.
  • G) By means of an automatic or manually induced qualified water change, all, ie at least the four LEDs 12 (T) and 12 (N) (at least one each for cold water temperature, one for cold water use, one for hot water temperature, one for hot water use) are each rendered hygienic sufficient water change and reaching the target temperatures individually reset to GREEN. If one of the parameters is not reached, the associated LED 12 remains at the previous color.
  • a warning lamp (see RGB LED 12 (I) in Fig. 3) indicates even when resetting the LEDs 12 (N) (T) flat or for each of the parameters, that in the past exceeded in the form of a red Lamp LED 12 0- which has given another warning.
  • This warning can be electronically 0- by a special tool such.
  • the warning lamp RGB LED 12 (I) can z. B. optionally represent by a number of flashing cycles of the display RGB LED 12 (I) the number of transgressions of the respective measuring unit.
  • the monitoring device 1 comprises a power supply 4, a control unit 6, a temperature sensor 5 and a status LED 12 (see Fig. 2). During commissioning, the time window ti is started.
  • the hygiene sensor After the time window t 2 has elapsed, the hygiene sensor must be reset in accordance with the criteria "Reset.” The time windows ti and t 2 and the display are reset and the time window ti is restarted.
  • the hygiene monitor comprises a power supply 4, a control unit 6, a temperature sensor 5 and a display 7 with the optical elements 12 (LEDs) GREEN, YELLOW, RED.
  • the display may consist of three individual optical elements 12 GREEN, YELLOW, RED (see Fig. 1), or of two optical elements 12 GREEN, RED and resulting mixed color or a single RGB element 12.
  • the at least one optical element 12 shines in red and the time window ti is started.
  • the time window t 2 is started.
  • the at least one optical element 12 of the display 7 changes from GREEN to YELLOW and thus indicates that a use and / or water change has to take place.
  • the display will change from YELLOW to RED to indicate that stagnation may have occurred.
  • the monitoring device 1 After expiry of the time window t 2 , the monitoring device 1 must be reset in accordance with the criteria "reset.”
  • the time windows ti and t 2 and the display 7 are reset and the time window ti is restarted.
  • the execution is carried out as in variant 3, but with the difference that the display 7 includes a plurality of optical elements 12 such. 3 green LED bars, 4 yellow LED bars and 3 red LED bars. Thanks to this embodiment variant 4 can be seen how long the monitoring device 1 is already in the appropriate status.
  • time window ti takes, for example, 3 days, then another green LED is switched on for each full day.
  • time window t 2 takes 4 days, for example, then another yellow LED is switched on per day.
  • time window t3 takes 8 days, for example, another red LED will be switched on per day. The number of red LEDs indicates how long the monitor has been in this state. It is possible in this embodiment that when switching to the next state, all previously switched to LEDs remain lit.
  • the execution takes place as in the variants 1 to 5, however, the display 7 is only displayed by conscious activation for a certain time. Thus, disturbing lighting (e.g., in a hospital room) can be prevented. Furthermore, in this embodiment, electrical power is saved, which allows a regenerative power supply or battery operation.
  • the status display 7 is optical, acoustic, wired or wireless, e.g. to a building management system (to a computer 18 or central computer, see Fig. 1) and / or z. B. transmitted to at least one smartphone.
  • a data logger module 16 is used, which is connected to the monitoring device 1 or integrated therein, and which the status and sensor behavior, ie the status signals 9 with respect to records specific events and / or a specific timeline (eg 1-60 minutes, 1-24 hours, 1-3 days, 1-4 days).
  • a second sensor 5 ⁇ (which is also designed as a temperature sensor) is used.
  • the controller 6 comprises two sensors 5.5 ⁇ , the temperature for the cold water supply or the cold water inlet and also for the hot water supply or the hot water inlet can be monitored.
  • the display 7 of the monitoring device 1 comprises two display units, of which a first display unit indicates the status of use and a second display unit indicates the status of the water change or represents.
  • the display 7 of the monitoring device 1 comprises three display units, of which a third display unit indicates the reaching of certain water temperatures (eg of less than 20 ° C or more than 50 ° C) indicates.

Abstract

L'invention concerne un dispositif (1) ou un procédé de surveillance de l'état d'hygiène d'une installation d'eau potable (2) comportant au moins un point de prélèvement d'eau (3). Ledit dispositif de surveillance (1) comprend au moins une alimentation électrique (4), un capteur (5), une commande (6) et un affichage (7) qui coopèrent activement respectivement les uns avec les autres. Le capteur (5) est conçu pour détecter la consommation ou un changement d'eau qualifié effectué au niveau du point de prélèvement d'eau (3), et pour adresser des signaux de détection (8) à la commande (6). La commande (8) est conçue pour évaluer lesdits signaux de détection (8) sur la base de critères de sélection prédéterminés, et pour émettre des signaux d'état (9) correspondant à la consommation effective ou au changement d'eau qualifié et aux critères de sélection.
PCT/EP2015/060383 2014-06-26 2015-05-11 Dispositif et procédé de surveillance de l'état d'hygiène d'une installation d'eau potable WO2015197255A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00970/14A CH709814B1 (de) 2014-06-26 2014-06-26 Einrichtung und Verfahren zum Überwachen des hygienischen Status einer Trinkwasser-Installation.
CH00970/14 2014-06-26

Publications (1)

Publication Number Publication Date
WO2015197255A1 true WO2015197255A1 (fr) 2015-12-30

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CH (1) CH709814B1 (fr)
WO (1) WO2015197255A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3564664A1 (fr) * 2018-05-04 2019-11-06 Hans Sasserath GmbH & Co. KG. Robinetterie d'eau pourvu de système automatique de rinçage
DE102018122424A1 (de) * 2018-09-13 2020-03-19 Bluelab Wasseranalysesysteme Gmbh Probenentnahmevorrichtung
DE102018122422A1 (de) * 2018-09-13 2020-03-19 Bluelab Wasseranalysesysteme Gmbh Verfahren zur Messung einer Trinkwasserkontamination in einer Trinkwasserleitung durch Mikroorganismen
DE102018008727A1 (de) * 2018-11-07 2020-05-07 Chemprox Gmbh Verfahren zur Überwachung eines Zeitintervalls für die Wasserentnahme aus einem Wasserversorgungssystem sowie Überwachungssystem hierzu

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006029692A1 (fr) * 2004-09-18 2006-03-23 Hansa Metallwerke Ag Mitigeur sanitaire, equipe d'un dispositif d'affichage electronique prevu pour afficher le debit et la temperature de l'eau, et procede de fonctionnement d'un dispositif d'affichage presentant la meme fonction
US20080149180A1 (en) * 2006-12-21 2008-06-26 Parris Earl H Method of associating a water utility service line to a customer service line
DE102007009007A1 (de) * 2007-02-23 2008-08-28 Frank Jobst Vorrichtung zur Überwachung der Spülaktivitäten einer Wasserleitung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006029692A1 (fr) * 2004-09-18 2006-03-23 Hansa Metallwerke Ag Mitigeur sanitaire, equipe d'un dispositif d'affichage electronique prevu pour afficher le debit et la temperature de l'eau, et procede de fonctionnement d'un dispositif d'affichage presentant la meme fonction
US20080149180A1 (en) * 2006-12-21 2008-06-26 Parris Earl H Method of associating a water utility service line to a customer service line
DE102007009007A1 (de) * 2007-02-23 2008-08-28 Frank Jobst Vorrichtung zur Überwachung der Spülaktivitäten einer Wasserleitung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3564664A1 (fr) * 2018-05-04 2019-11-06 Hans Sasserath GmbH & Co. KG. Robinetterie d'eau pourvu de système automatique de rinçage
DE102018122424A1 (de) * 2018-09-13 2020-03-19 Bluelab Wasseranalysesysteme Gmbh Probenentnahmevorrichtung
DE102018122422A1 (de) * 2018-09-13 2020-03-19 Bluelab Wasseranalysesysteme Gmbh Verfahren zur Messung einer Trinkwasserkontamination in einer Trinkwasserleitung durch Mikroorganismen
DE102018008727A1 (de) * 2018-11-07 2020-05-07 Chemprox Gmbh Verfahren zur Überwachung eines Zeitintervalls für die Wasserentnahme aus einem Wasserversorgungssystem sowie Überwachungssystem hierzu

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CH709814A2 (de) 2015-12-31
CH709814B1 (de) 2018-02-15

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