WO1999061375A1 - Device for disinfecting water flowing through a sanitary device - Google Patents

Device for disinfecting water flowing through a sanitary device Download PDF

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Publication number
WO1999061375A1
WO1999061375A1 PCT/EP1999/001703 EP9901703W WO9961375A1 WO 1999061375 A1 WO1999061375 A1 WO 1999061375A1 EP 9901703 W EP9901703 W EP 9901703W WO 9961375 A1 WO9961375 A1 WO 9961375A1
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Prior art keywords
flash lamp
water
pulse generator
water flowing
microprocessor
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PCT/EP1999/001703
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German (de)
French (fr)
Inventor
Horst Kunkel
Original Assignee
Hansa Metallwerke Ag
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Publication date
Application filed by Hansa Metallwerke Ag filed Critical Hansa Metallwerke Ag
Priority to AU34129/99A priority Critical patent/AU3412999A/en
Publication of WO1999061375A1 publication Critical patent/WO1999061375A1/en

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/32—Details relating to UV-irradiation devices
    • C02F2201/326—Lamp control systems

Definitions

  • the invention relates to a device for sterilizing water which flows through a sanitary device
  • a circuit arrangement for operating the flash lamp which has a pulse generator which generates a sequence of output pulses for controlling the flash lamp.
  • the object of the present invention is to design a device of the type mentioned at the outset in such a way that the service life of the flash lamp is as long as possible and the energy consumption of the entire device is as small as possible.
  • a flow rate sensor is arranged in the waterway and generates an output signal which is representative of the amount of water flowing in the waterway per unit of time;
  • a microprocessor is provided in the circuit arrangement, to which the output signal of the flow rate sensor is fed and which is connected to the pulse generator, wherein
  • the pulse generator is controlled by the microprocessor in such a way that the repetition frequency of its output signal increases with the amount of water flowing in the waterway per unit of time.
  • the invention is based on the knowledge that the service life of the flash lamp essentially depends on the number of flashes emitted by it. If this number of flashes can be kept to the minimum necessary to achieve the disinfection effect, the service life can be extended. For this reason, according to the invention, the flow rate sensor is located in the waterway intended. This gives the microprocessor that controls the pulse generator information about the amount of water to be sterilized per unit of time. If this is low, it is sufficient that the microprocessor controls the pulse generator in such a way that the pulses which ignite the flash lamp have a relatively low repetition frequency. For the relatively small amount of water, relatively few flashes of the flash lamp are then sufficient to bring about sufficient disinfection.
  • the microprocessor causes the pulse generator to generate its output signals with a higher repetition frequency.
  • the flash lamp fires frequently, which takes into account the larger amount of water flowing through per unit of time.
  • the number of pulses is dynamically adapted to the amount of water flowing per unit of time; there is no "overdosing" of flashes, as occurred in the prior art and which is no longer necessary to sterilize the water.
  • the flash lamp can be completely deactivated if no water flows in the water path. With this, the flash lamp is undoubtedly the most protected and the energy consumption reduced to zero.
  • the pulse generator generates output pulses with a low repetition frequency if no water flows in the waterway. This means that even during the "rest periods" of the sanitary facility, there is a certain disinfection effect with which the resettlement takes place is prevented by germs or germs that have settled in this or in filters of the sterilization reactor during the operating phase of the sanitary facility can be reliably killed.
  • the reference numeral 1 - in thick lines - represents the water path through which the water to be sterilized flows from the connection 2 to the house line to the outlet opening 3 of the water outlet 4.
  • the water path 1 there is a solenoid valve 5, a flow rate sensor 6 and a sterilization reactor 7, which contains a xenon-quartz flash lamp 14 in a manner known per se and which is itself accommodated within the water outlet 4. That of the light of the xenon
  • Quartz flash lamp 14 sterilized water flows from the sterilization reactor 7 to the outlet opening 3.
  • This circuit arrangement comprises a voltage supply device 8 operated by the mains voltage, which supplies the required operating voltages for a solenoid valve driver 9, detection electronics 10, a microprocessor 11 and a pulse generator
  • the microprocessor 11 is connected to the solenoid valve driver 9, the detection electronics 10, the pulse generator 12 and the flow rate sensor 6 and controls the operation of the disinfection device in the manner described in more detail below.
  • the pulse generator 12 generates pulses which are necessary for the operation of the xenon quartz flash lamp 14 contained in the sterilization reactor 7, with a repetition frequency which is controlled by the microprocessor 11 in a manner which will also become clear below.
  • the output of the solenoid valve driver 8 is connected to the solenoid valve 5.
  • a certain logic e.g. with a certain delay
  • the load on this xenon-quartz flash lamp 14 is adapted to the actual need: the more water flows, the more often the xenon flashes. Quartz flash lamp 14. Overall, the lifespan of the xenon quartz flash lamp 14 is increased and the energy consumption of the entire device is reduced. This without having to accept the disinfection effectiveness of the disinfection reactor 7.
  • the microprocessor 11 is used - if necessary with a certain logic, e.g. time delay - the solenoid valve driver 9 is applied so that the solenoid valve 5 is closed.
  • a certain logic e.g. time delay - the solenoid valve driver 9 is applied so that the solenoid valve 5 is closed.
  • the microprocessor 11 drives the pulse generator 12 back to an "idle state".
  • this "idle state” can look like that
  • Xenon quartz flash lamp 14 is no longer activated, so the function of this lamp 14 is completely stopped.
  • Base load means a relatively low repetition frequency, with which care is taken to ensure that no germs can develop or settle in the area of the water outlet 4 even when the water is not flowing.
  • the sterilization reactor contains 7 filters in which microorganisms may have separated during operation, that is to say when the water is flowing. In the "resting phase" of the xenon quartz flash lamp 14, these microorganisms retained in the filter can be reliably killed, for example overnight. This can be done with a relatively low radiation power, since a relatively large amount of time is available.

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  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physical Water Treatments (AREA)

Abstract

A disinfection reactor (7) is provided in a device for disinfecting water flowing through a sanitary device. A flash lamp generating a UV light, more particularly a xenon-quartz flash lamp (14), is located inside said reactor. The water flowing through is impinged upon by the flashes of said flash lamp (14) and the germs contained therein are killed. In order to enhance the service life of the flash lamp (14) and reduce energy consumption of the device, a through-flow rate sensor (6) is located in the water path (1). The output signals of said sensor, which represent the rate of water flowing through per time unit, are fed to a microprocessor (11) that controls the pulse generator (12), whose output signals serve to feed the flash lamp (14), in such a way that the repetition frequency of said signals increases as the amount of water measured per time unit rises.

Description

Einrichrichtung zum Entkeimen von Wasser, welches eine Sanitäreinrichtung durchströmt Device for disinfecting water that flows through a sanitary device
Die Erfindung betrifft eine Einrichtung zum Entkeimen von Wasser, welches eine Sanitäreinrichtung durchströmt, mitThe invention relates to a device for sterilizing water which flows through a sanitary device
a) einem im Wasserweg liegenden Entkeimungsreaktor, der eine UV-Licht erzeugende Blitzlampe aufweist, von deren Blitze das Wasser beaufschlagbar ist;a) a sterilization reactor lying in the water path, which has a flash lamp generating UV light, the flashes of which can be acted upon by the water;
b) einer Schaltungsanordnung zum Betrieb der Blitzlampe, die einen Impulsgenerator aufweist, der zur Ansteuerung der Blitzlampe eine Folge von Ausgangsimpulsen erzeugt.b) a circuit arrangement for operating the flash lamp, which has a pulse generator which generates a sequence of output pulses for controlling the flash lamp.
In den letzten Jahren sind die Gefahren, die von Mikroorganismen, insbesondere Bakterien, Amöben oder anderen Einzellern, verunreinigtem Wasser im Sanitärbereich ausgehen, zunehmend deutlicher geworden. Der Entkeimung von Wasser wird daher eine erhöhte Bedeutung beigemessen.In recent years, the dangers posed by microorganisms, in particular bacteria, amoebas or other single-cell organisms, contaminated water in the sanitary area have become increasingly clear. The disinfection of water is therefore given greater importance.
Eine Einrichtung der eingangs genannten Art ist in dem Zeitschriftenartikel "Sterilization Using Pulsed White Light" in "Medical Device Technology", Heft Juli/August 1997, Seiten 24 ff beschrieben. Hier ist ausgeführt, daß die Verwendung gepulsten Lichtes, wie es insbesondere von Xenon-Quarz-Blitzlampen erzeugt wird, zu guten Entkeimungsergebnissen führt, welche diejenige übersteigen, die mit konstanter UV-Bestrahlung erreichbar ist. Dieser Zeitschriftenartikel berichtet im wesentlichen über wissenschaftliche Forschungsergebnisse, die die Effizienz der Blitze der Xenon-Quarz -Blitzlampe zum Inhalt haben. Mit der komerziellen Umsetzung in ein handelsfähiges Produkt befaßt sich dieser Artikel nicht, also insbesondere auch nicht mit den Problemen der Lebensdauer der einge- setzten Lampe sowie des Energieverbrauches.A device of the type mentioned at the beginning is described in the magazine article "Sterilization Using Pulsed White Light" in "Medical Device Technology", July / August 1997, pages 24 ff. It is stated here that the use of pulsed light, as is produced in particular by xenon quartz flash lamps, leads to good disinfection results which exceed that which can be achieved with constant UV radiation. This journal article essentially reports scientific research findings that improve efficiency of the flashes of the xenon quartz flash lamp. This article does not deal with the commercial implementation into a marketable product, and in particular also does not deal with the problems of the service life of the lamp used and the energy consumption.
Aufgabe der vorliegenden Erfindung ist es, eine Einrichtung der eingangs genannten Art so auszugestalten, daß die Lebensdauer der Blitzlampe möglichst groß und die Energie- aufnähme der gesamten Einrichtung möglichst klein ist.The object of the present invention is to design a device of the type mentioned at the outset in such a way that the service life of the flash lamp is as long as possible and the energy consumption of the entire device is as small as possible.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daßThis object is achieved in that
c) im Wasserweg ein Durchflußmengensensor angeordnet ist, der ein Ausgangssignal erzeugt, welches für die pro Zeiteinheit im Wasserweg strömende Wassermenge repräsentativ ist;c) a flow rate sensor is arranged in the waterway and generates an output signal which is representative of the amount of water flowing in the waterway per unit of time;
d) in der Schaltungsanordnung ein Mikroprozessor vorge- sehen ist, dem das Ausgangssignal des Durchflußmengensensors zugeführt wird und der mit dem Impulsgenerator verbunden ist, wobeid) a microprocessor is provided in the circuit arrangement, to which the output signal of the flow rate sensor is fed and which is connected to the pulse generator, wherein
e) der Impulsgenerator von dem Mikroprozessor so ange- steuert wird, daß die Wiederholfrequenz seines Ausgangssignales mit wachsender im Wasserweg strömender Wassermenge pro Zeiteinheit wächst.e) the pulse generator is controlled by the microprocessor in such a way that the repetition frequency of its output signal increases with the amount of water flowing in the waterway per unit of time.
Die Erfindung geht von der Erkenntnis aus, daß die Lebens- dauer der Blitzlampe im wesentlichen von der Anzahl der von ihr abgegebenen Blitze abhängt. Wenn es gelingt, diese Anzahl der Blitze auf dem zur Erzielung des Entkeimungs- effektes notwendigen Minimum zu halten, kann die Lebensdauer verlängert werden. Aus diesem Grunde ist erfindungs- gemäß der im Wasserweg liegende Durchflußmengensensor vorgesehen. Dieser gibt dem Mikroprozessor, der den Impulsgenerator ansteuert, Informationen über die Menge des pro Zeiteinheit zu entkeimenden Wassers. Ist diese gering, so genügt es, daß der Mikroprozessor den Impuls- generator in einer Weise ansteuert, bei welcher die die Blitzlampe zündenden Impulse eine verhältnismäßig geringe Wiederholfrequenz aufweisen. Es reichen dann nämlich für die verhältnismäßig geringe Wassermenge verhältnismäßig wenige Blitze der Blitzlampe, um eine ausreichende Entkei- mung herbeizuführen. Stellt der Durchflußmengensensor dagegen eine hohe Literleistung des im Wasserweg strömenden Wassers fest, steigt der "Entkeimungsbedarf". Deshalb veranlaßt der Mikroprozessor den Impulsgenerator, seine Ausgangssignale mit einer höheren Wiederholfrequenz zu erzeugen. Die Blitzlampe zündet öfters, wodurch der größeren Menge des pro Zeiteinheit durchströmenden Wassers Rechnung getragen wird. Erfindungsgemäß wird also die Zahl der Impulse dynamisch an die jeweils pro Zeiteinheit fließende Wassermenge angepaßt; eine "Überdosierung" an Blitzen, wie sie beim Stande der Technik vorkam und die zur Entkeimung des Wassers nicht mehr notwendig ist, findet nicht statt.The invention is based on the knowledge that the service life of the flash lamp essentially depends on the number of flashes emitted by it. If this number of flashes can be kept to the minimum necessary to achieve the disinfection effect, the service life can be extended. For this reason, according to the invention, the flow rate sensor is located in the waterway intended. This gives the microprocessor that controls the pulse generator information about the amount of water to be sterilized per unit of time. If this is low, it is sufficient that the microprocessor controls the pulse generator in such a way that the pulses which ignite the flash lamp have a relatively low repetition frequency. For the relatively small amount of water, relatively few flashes of the flash lamp are then sufficient to bring about sufficient disinfection. On the other hand, if the flow rate sensor detects a high liter output of the water flowing in the waterway, the "need for disinfection" increases. Therefore, the microprocessor causes the pulse generator to generate its output signals with a higher repetition frequency. The flash lamp fires frequently, which takes into account the larger amount of water flowing through per unit of time. According to the invention, the number of pulses is dynamically adapted to the amount of water flowing per unit of time; there is no "overdosing" of flashes, as occurred in the prior art and which is no longer necessary to sterilize the water.
Im einfachsten Falle kann die Blitzlampe vollständig außer Funktion gesetzt werden, wenn im Wasserweg kein Wasser strömt. Hiermit wird zweifelsfrei die Blitzlampe am stärksten geschont und die Energieaufnahme auf null reduziert .In the simplest case, the flash lamp can be completely deactivated if no water flows in the water path. With this, the flash lamp is undoubtedly the most protected and the energy consumption reduced to zero.
In vielen Fällen empfiehlt sich jedoch eine Ausgestaltung, bei welcher der Impulsgenerator Ausgangsimpulse mit einer geringen Wiederholfrequenz erzeugt, wenn im Wasserweg kein Wasser strömt. Dies bedeutet, daß auch in den "Ruhezeiten" der Sanitäreinrichtung eine gewisse Desinfektions- Wirkung stattfindet, mit welcher die Wiederansiedlung von Keimen verhindert wird oder Keime, die sich während der Betriebsphase der Sanitäreinrichtung in dieser oder in Filtern des Entkeimungsreaktors abgesetzt haben, zuverlässig abgetötet werden können.In many cases, however, an embodiment is recommended in which the pulse generator generates output pulses with a low repetition frequency if no water flows in the waterway. This means that even during the "rest periods" of the sanitary facility, there is a certain disinfection effect with which the resettlement takes place is prevented by germs or germs that have settled in this or in filters of the sterilization reactor during the operating phase of the sanitary facility can be reliably killed.
Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung näher erläutert; die einzige Figur zeigt schematisch eine Einrichtung zur Entkeimung von Wasser, welches eine berührungslos gesteuerte Sanitär- armatur durchströmt.An embodiment of the invention is explained below with reference to the drawing; the single figure shows schematically a device for the disinfection of water which flows through a non-contact controlled sanitary fitting.
In der Figur ist mit dem Bezugszeichen 1 - in dick ausgezogenen Strichen - der Wasserweg dargestellt, den zu entkeimendes Wasser von dem Anschluß 2 zur Hausleitung bis zur Auslaßöffnung 3 des Wasserauslaufes 4 durchströmt. In dem Wasserweg 1 liegen ein Magnetventil 5, ein Durchflußmengensensor 6 sowie ein Entkeimungsreaktor 7, der in an und für sich bekannter Weise eine Xenon-Quarz-Blitzlampe 14 enthält und der selbst innerhalb des Wasseraus- laufes 4 untergebracht ist. Das von dem Licht der Xenon-In the figure, the reference numeral 1 - in thick lines - represents the water path through which the water to be sterilized flows from the connection 2 to the house line to the outlet opening 3 of the water outlet 4. In the water path 1 there is a solenoid valve 5, a flow rate sensor 6 and a sterilization reactor 7, which contains a xenon-quartz flash lamp 14 in a manner known per se and which is itself accommodated within the water outlet 4. That of the light of the xenon
Quarz-Blitzlampe 14 entkeimte Wasser fließt von dem Entkeimungsreaktor 7 zur Auslaßöffnung 3.Quartz flash lamp 14 sterilized water flows from the sterilization reactor 7 to the outlet opening 3.
Die einzige Figur zeigt im unteren Bereich die Schaltungs- anordnung, die zum Betrieb der berührungslos gesteuerten Armatur verwendet wird. Diese Schaltungsanordnung umfaßt eine von der Netzspannung betriebene Spannungsversorgungseinrichtung 8, welche die erforderlichen Betriebsspannungen für einen Magnetventiltreiber 9, eine Detektionselektronik 10, einen Mikroprozessor 11 und einen ImpulsgeneratorThe only figure shows in the lower area the circuit arrangement that is used to operate the non-contact valve. This circuit arrangement comprises a voltage supply device 8 operated by the mains voltage, which supplies the required operating voltages for a solenoid valve driver 9, detection electronics 10, a microprocessor 11 and a pulse generator
12 bereitstellt. Der Mikroprozessor 11 ist mit dem Magnet - ventiltreiber 9, der Detektionselektronik 10, dem Impulsgenerator 12 und dem Durchflußmengensensor 6 verbunden und steuert den Betrieb der Entkeimungseinrichtung in der nachfolgend näher beschriebenen Weise. Der Impulsgenerator 12 erzeugt Impulse, die zum Betrieb der in dem Entkeimungsreaktor 7 enthaltenen Xenon-Quarz - Blitzlampe 14 erforderlich sind, und zwar mit einer Wieder- holfrequenz, die von dem Mikroprozessor 11 in einer Weise gesteuert wird, die ebenfalls weiter unten deutlich wird.12 provides. The microprocessor 11 is connected to the solenoid valve driver 9, the detection electronics 10, the pulse generator 12 and the flow rate sensor 6 and controls the operation of the disinfection device in the manner described in more detail below. The pulse generator 12 generates pulses which are necessary for the operation of the xenon quartz flash lamp 14 contained in the sterilization reactor 7, with a repetition frequency which is controlled by the microprocessor 11 in a manner which will also become clear below.
Der Ausgang des Magnetventiltreibers 8 ist mit dem Magnetventil 5 verbunden.The output of the solenoid valve driver 8 is connected to the solenoid valve 5.
Die Funktionsweise der beschriebenen Einrichtung ist wie folgt :The described device works as follows:
Die Detektionselektronik 10, der Magnetventiltreiber 9 und das Magnetventil 5 dienen, gesteuert von dem Mikroprozessor 11, in üblicher Weise der berührungslosen Steuerung des Wasserstromes , der den Wasserweg 1 durchströmt: Stellt die Detektionselektronik 10, die beispielsweise eine Infrarot-Reflexionslichtschranke oder irgend- einen anderen Näherungsdetektor enthält, fest, daß sich ein Benutzer im Bereich des Wasserauslaufes 4 befindet, steuert der Mikroprozessor 11, dem das Ausgangssignal der Detektionselektronik 10 zugeführt wird, den Magnetventiltreiber 9 nach einer bestimmten Logik (z. B. mit einer gewissen Verzögerung) an, woraufhin das Magnetventil 5 geöffnet wird und das Wasser in den Wasserweg 1 einzuströmen beginnt. Das Wasser durchfließt den Durchflußmengensensor 6, welcher ein für die Literleistung (Liter pro Zeiteinheit) stehendes Signal an den Mikroprozessor 11 abgibt. Dieser erzeugt nun seinerseits ein dem Impulsgenerator 12 zugeführtes Signal, welches die Wiederholfrequenz der von dem Impulsgenerator 12 erzeugten Ausgangs- signale beeinflußt: Umso größer die vom Durchflußmengensensor 6 festgestellte Literleitung ist, umso größer wird die Wiederholfrequenz der Ausgangssignale des Impulsgene- rators 12. Mit anderen Worten: Umso höher die gemessene Literleistung im Wasserweg 1 ist, umso kürzeren zeitlichen Abstand haben die vom Impulsgenerator 12 abgegebenen Impulse voneinander. Die Impulsdauer der Einzelimpulse dagegen ist im wesentlichen durch die Funktionsweise der Xenon-Quarz-Blitzlampe 14 vorgegeben.The detection electronics 10, the solenoid valve driver 9 and the solenoid valve 5, controlled by the microprocessor 11, serve in the usual way for the contactless control of the water flow that flows through the water path 1: provides the detection electronics 10, which, for example, an infrared reflection light barrier or any other Proximity detector contains, firmly, that a user is in the area of the water outlet 4, the microprocessor 11, to which the output signal of the detection electronics 10 is supplied, controls the solenoid valve driver 9 according to a certain logic (e.g. with a certain delay), whereupon the solenoid valve 5 is opened and the water begins to flow into the waterway 1. The water flows through the flow rate sensor 6, which emits a signal for the liter output (liters per unit time) to the microprocessor 11. This in turn now generates a signal fed to the pulse generator 12 which influences the repetition frequency of the output signals generated by the pulse generator 12: the larger the liter line detected by the flow rate sensor 6, the greater the repetition frequency of the output signals of the pulse generator. rators 12. In other words, the higher the measured liter output in waterway 1, the shorter the time interval between the pulses emitted by the pulse generator 12. The pulse duration of the individual pulses, however, is essentially determined by the mode of operation of the xenon quartz flash lamp 14.
Durch die beschriebene Steuerung der Wiederholfrequenz, mit welcher die Xenon-Quarz-Blitzlampe 14 im Entkeimungs- reaktor 7 gezündet wird, wird die Belastung dieser Xenon- Quarz-Blitzlampe 14 an den tatsächlichen Bedarf angepaßt: Umsomehr Wasser strömt, umso häufiger blitzt die Xenon- Quarz-Blitzlampe 14. Insgesamt wird auf diese Weise die Lebensdauer der Xenon-Quarz-Blitzlampe 14 erhöht und die Energieaufnahme der gesamten Einrichtung verringert. Dies, ohne Einbußen an der Entkeimungswirksamkeit des Entkeimungsreaktors 7 hinnehmen zu müssen.By controlling the repetition frequency with which the xenon-quartz flash lamp 14 is ignited in the sterilization reactor 7, the load on this xenon-quartz flash lamp 14 is adapted to the actual need: the more water flows, the more often the xenon flashes. Quartz flash lamp 14. Overall, the lifespan of the xenon quartz flash lamp 14 is increased and the energy consumption of the entire device is reduced. This without having to accept the disinfection effectiveness of the disinfection reactor 7.
Stellt die Detektionselektronik 10 fest, daß der Benutzer sich von dem Wasserauslauf 4 entfernt hat, so wird über den Mikroprozessor 11 - gegebenenfalls mit einer bestimmten Logik, z.B. zeitlicher Verzögerung - der Magnetventiltreiber 9 so beaufschlagt, daß das Magnetventil 5 geschlossen wird. Der Wasserstrom durch den Wasserweg 1 und den Entkeimungsreaktor 7 zur Auslaßöffnung 3 des Wasserauslaufes 4 kommt zum Erliegen.If the detection electronics 10 determines that the user has moved away from the water outlet 4, the microprocessor 11 is used - if necessary with a certain logic, e.g. time delay - the solenoid valve driver 9 is applied so that the solenoid valve 5 is closed. The water flow through the water path 1 and the sterilization reactor 7 to the outlet opening 3 of the water outlet 4 comes to a standstill.
Gleichzeitig fährt der Mikroprozessor 11 den Impulsgenerator 12 auf einen "Ruhezustand" zurück. Im einfachsten Falle kann dieser "Ruhezustand" so aussehen, daß dieAt the same time, the microprocessor 11 drives the pulse generator 12 back to an "idle state". In the simplest case, this "idle state" can look like that
Xenon-Quarz-Blitzlampe 14 überhaupt nicht mehr angesteuert wird, also die Funktion dieser Lampe 14 völlig stillgesetzt wird. In vielen Fällen dagegen empfiehlt es sich, im "Ruhezustand", in dem kein Wasser mehr strömt, die Xenon- Quarz -Blitzlampe 14 des Entkeimungsreaktors 7 mit einer "Grundlast" zu fahren. Unter "Grundlast" wird eine verhältnismäßig geringe Wiederholfrequenz verstanden, mit welcher dafür Sorge getragen wird, daß sich auch bei nicht strömendem Wasser im Bereich des Wasserauslaufes 4 keine Keime entwickeln oder ansiedeln können. In manchen Fällen enthält der Entkeimungsreaktor 7 Filter, in denen sich im Betrieb, also bei strömendem Wasser, Mikroorganismen abgeschieden haben können. In der "Ruhephase" der Xenon- Quarz -Blitzlampe 14 können - z.B. über Nacht - diese im Filter zurückgehaltenen Mikroorganismen zuverlässig abgetötet werden. Dies kann mit verhältnismäßig geringer Strahlungsleistung erfolgen, da verhältnismäßig viel Zeit zur Verfügung steht. Xenon quartz flash lamp 14 is no longer activated, so the function of this lamp 14 is completely stopped. In many cases, on the other hand, it is advisable to use the xenon-quartz flash lamp 14 of the disinfection reactor 7 in a "quiescent state" in which no more water flows To drive "base load". “Base load” means a relatively low repetition frequency, with which care is taken to ensure that no germs can develop or settle in the area of the water outlet 4 even when the water is not flowing. In some cases, the sterilization reactor contains 7 filters in which microorganisms may have separated during operation, that is to say when the water is flowing. In the "resting phase" of the xenon quartz flash lamp 14, these microorganisms retained in the filter can be reliably killed, for example overnight. This can be done with a relatively low radiation power, since a relatively large amount of time is available.

Claims

Patentansprüche claims
1. Einrichtung zum Entkeimen von Wasser, welches eine Sanitäreinrichtung durchströmt, mit1. Device for disinfecting water that flows through a sanitary device with
a) einem im Wasserweg liegenden Entkeimungsreaktor, der eine UV-Licht erzeugende Blitzlampe aufweist, von deren Blitze das Wasser beaufschlagbar ist;a) a sterilization reactor lying in the water path, which has a flash lamp generating UV light, the flashes of which can be acted upon by the water;
b) einer Schaltungsanordnung zum Betrieb der Blitzlampe, die einen Impulsgenerator aufweist, der zur Ansteuerung der Blitzlampe eine Folge von Ausgangsimpulsen erzeugt,b) a circuit arrangement for operating the flash lamp, which has a pulse generator which generates a sequence of output pulses for controlling the flash lamp,
dadurch gekennzeichnet, daßcharacterized in that
c) im Wasserweg (1) ein Durchflußmengensensor (6) angeordnet ist, der ein Ausgangssignal erzeugt, welches für die pro Zeiteinheit im Wasserweg (1) strömende Wassermenge repräsentativ ist;c) a flow rate sensor (6) is arranged in the waterway (1) and generates an output signal which is representative of the amount of water flowing in the waterway (1) per unit time;
d) in der Schaltungsanordnung ein Mikroprozessor (11) vorgesehen ist, dem das Ausgangssignal des Durchfluß- mengensensors (6) zugeführt wird und der mit dem Impulsgenerator (12) verbunden ist, wobeid) a microprocessor (11) is provided in the circuit arrangement, to which the output signal of the flow rate sensor (6) is fed and which is connected to the pulse generator (12), wherein
e) der Impulsgenerator (12) von dem Mikroprozessore) the pulse generator (12) from the microprocessor
(11) so angesteuert wird, daß die Wiederholfrequenz seiner Ausgangssignale mit wachsender im Wasserweg (1) strömender Wassermenge pro Zeiteinheit wächst.(11) is controlled so that the repetition frequency of its output signals increases with the amount of water flowing in the water path (1) per unit of time.
2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Blitzlampe (14) außer Funktion ist, wenn im Wasserweg (1) kein Wasser strömt.2. Device according to claim 1, characterized in that the flash lamp (14) is inoperative when no water flows in the water path (1).
3. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Impulsgenerator (12) Ausgangsimpulse mit einer geringen Wiederholfrequenz erzeugt, wenn im Wasserweg (1) kein Wasser strömt.3. Device according to claim 1, characterized in that the pulse generator (12) generates output pulses with a low repetition frequency when no water flows in the water path (1).
4. Einrichtung nach einem der Anprüche 1 bis 3, dadurch gekennzeichnet, daß die Blitzlampe (14) eine Xenon- Quarzlampe ist. 4. Device according to one of claims 1 to 3, characterized in that the flash lamp (14) is a xenon quartz lamp.
PCT/EP1999/001703 1998-05-22 1999-03-16 Device for disinfecting water flowing through a sanitary device WO1999061375A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU34129/99A AU3412999A (en) 1998-05-22 1999-03-16 Device for disinfecting water flowing through a sanitary device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823011.7 1998-05-22
DE1998123011 DE19823011C2 (en) 1998-05-22 1998-05-22 Device for sterilizing water that flows through a sanitary facility

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WO (1) WO1999061375A1 (en)

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WO2002081829A1 (en) * 2001-03-15 2002-10-17 Solsys Device for decontaminating u-bends

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201650A1 (en) * 1984-01-16 1986-11-20 Autotrol Corporation Method and apparatus for laser disinfection of fluids
EP0464688A1 (en) * 1990-07-06 1992-01-08 Praktek Securities Method for destruction of toxic substances with ultraviolet radiation
US5151252A (en) * 1991-10-17 1992-09-29 Purus, Inc. Chamber design and lamp configuration for an ultraviolet photochemical reactor
WO1997015332A1 (en) * 1995-10-26 1997-05-01 Purepulse Technologies, Inc. Improved deactivation of organisms using high-intensity pulsed polychromatic light

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201650A1 (en) * 1984-01-16 1986-11-20 Autotrol Corporation Method and apparatus for laser disinfection of fluids
EP0464688A1 (en) * 1990-07-06 1992-01-08 Praktek Securities Method for destruction of toxic substances with ultraviolet radiation
US5151252A (en) * 1991-10-17 1992-09-29 Purus, Inc. Chamber design and lamp configuration for an ultraviolet photochemical reactor
WO1997015332A1 (en) * 1995-10-26 1997-05-01 Purepulse Technologies, Inc. Improved deactivation of organisms using high-intensity pulsed polychromatic light

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DE19823011C2 (en) 2000-12-28
DE19823011A1 (en) 1999-11-25

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