AT394182B - HEATING DEVICE FOR DISINFECTING WATER IN A HOT WATER TANK - Google Patents

HEATING DEVICE FOR DISINFECTING WATER IN A HOT WATER TANK Download PDF

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Publication number
AT394182B
AT394182B AT0069488A AT69488A AT394182B AT 394182 B AT394182 B AT 394182B AT 0069488 A AT0069488 A AT 0069488A AT 69488 A AT69488 A AT 69488A AT 394182 B AT394182 B AT 394182B
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AT
Austria
Prior art keywords
water
reservoir
temperature
line
heating
Prior art date
Application number
AT0069488A
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German (de)
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ATA69488A (en
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Vaillant Gmbh
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.)
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Publication date
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Application filed by Vaillant Gmbh filed Critical Vaillant Gmbh
Priority to AT0069488A priority Critical patent/AT394182B/en
Priority to PCT/DE1988/000661 priority patent/WO1989003807A1/en
Priority to AU26040/88A priority patent/AU2604088A/en
Priority to EP88909284A priority patent/EP0338056B1/en
Priority to AT88909284T priority patent/ATE100781T1/en
Priority to DE3836523A priority patent/DE3836523A1/en
Priority to DE88909284T priority patent/DE3887504D1/en
Publication of ATA69488A publication Critical patent/ATA69488A/en
Application granted granted Critical
Publication of AT394182B publication Critical patent/AT394182B/en

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Classifications

    • 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
    • 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
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • 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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
    • C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/06—Aerobic processes using submerged filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/48—Water heaters for central heating incorporating heaters for domestic water
    • F24H1/50—Water heaters for central heating incorporating heaters for domestic water incorporating domestic water tanks
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Abstract

An apparatus for sterilizing by heating water in a service water reservoir 3 consists of a service water reservoir 3, in which to monitor the temperature of the reservoir water a two-stage thermostat 30 which controls the heating of the reservoir water is provided, the first temperature stage of which can be set to the operating temperature of the reservoir and whose setting to a higher sterilizing second temperature stage 32 can be controlled via a time element 33 which triggers this setting at predetermined time intervals for a presettable time. According to a preferred embodiment, a circulation line 38 which departs from the tap line 4 of the reservoir 3 and returns via its cold water feed line 1 into the reservoir 3 comprises a nonreturn valve 39 and a circulation pump 40 which can be switched on via a control line 37 from the time element 33, in order by this means to ensure the disinfection of a region of the service water supply plant which is at hazard by colonization with microorganisms. <IMAGE>

Description

AT 394 182 BAT 394 182 B

Eine ältere Anmeldung betrifft eine Einrichtung zur Entkeimung von Wasser in einem Brauchwasserspeicher durch Erhitzen auf Entkeimungstemperatur.An older application relates to a device for the disinfection of water in a service water storage tank by heating to the disinfection temperature.

Aus der DE-OS 3 618 186 ist ein Wasserverteilsystem für eine Dekontaminationsanlage bekanntgeworden, bei der kontaminiertes Abwasser mit Hilfe einer Pumpe angesaugt und zum Entgasen in einen Behälter gepumpt wird. Anschließend wird das Wasser über eine weitere Pumpe zu einem Wärmetauscher gefördert, dessen ftimär-kreis mit einem Durchlauferhitzer verbunden ist. Dem Durchlauferhitzer ist ein Verweilbehälter nachgeordnet, von wo das auf etwa 140 °C erhitzte Wasser über den Sekundärkreis des Wärmetauschers geleitet wird. Daran anschließend wird das Wasser in einem Kühler heruntergekühlt und zur Nachdekontamination über einen Kohleaktivfilter geleitet. Über ein Druckhalteventil gelangt das Wasser dann zu einem Verbraucher, beispielsweise einer Dusche.A water distribution system for a decontamination system has become known from DE-OS 3 618 186, in which contaminated wastewater is drawn in with the aid of a pump and pumped into a container for degassing. The water is then pumped to a heat exchanger via a further pump, the primary circuit of which is connected to a water heater. A downstream tank is located downstream of the instantaneous water heater, from where the water heated to approximately 140 ° C is conducted via the secondary circuit of the heat exchanger. The water is then cooled down in a cooler and passed through a carbon filter for post-decontamination. The water then reaches a consumer, for example a shower, via a pressure holding valve.

Bei diesem Stand der Technik fällt sogleich der sehr große Aufwand auf, der sich dadurch ergibt, daß zu einer Erhitzung auf etwa 140 °C eine Überdruckanlage verwendet wird, die sogar der Dampfkesselverordnung entspricht. Eine solche Anlage ist mit ihrem Aufwand nicht für eine häusliche Brauchwarmwasser-Versorgungsan-lage geeignet, zumal hier Abwasser aufbereitet wird, das aber dann nicht als Trinkwasser verwendet wird und zumal das gesamte Wasser immer hoch erhitzt wird.In this state of the art, the very great effort which results from the fact that an overpressure system is used for heating to about 140 ° C., which even corresponds to the steam boiler regulation. Such a system is not suitable for a domestic hot water supply system, especially since wastewater is treated here, but is then not used as drinking water and especially since all the water is always heated up.

Aus der US-PS 3 648 438 ist ein Flüssigkeitsreinigungs- und Belüftungssystem bekanntgeworden, bei dem gleichfalls Wasser zur Pasteurisierung vor dem Gebrauch erhitzt wird.From US Pat. No. 3,648,438 a liquid cleaning and aeration system has become known, in which water is also heated for pasteurization before use.

Aufgabe der vorliegenden Erfindung ist es, eine Vorrichtung gemäß der eingangs näher bezeichneten Art so zu gestalten, daß sie sich mit geringem Aufwand in bereits bestehende häusliche Warmwasser-Versorgungsanlagen einbauen läßt. An dem das Warmwasser einer solchen Brauchwasseranlage speichernden Speicher ist bekanntlich ein der Überwachung der Temperatur des gespeicherten Wassers dienender und die Beheizung des Speichers steuernder Thermostat angeordnet.The object of the present invention is to design a device according to the type specified in the introduction in such a way that it can be installed in existing domestic hot water supply systems with little effort. As is known, a thermostat which monitors the temperature of the stored water and controls the heating of the store is arranged on the store storing the hot water of such a service water system.

Erfindungsgemäß ist nun zur Lösung der Aufgabe ein zweistufiger Thermostat vorgesehen, dessen erste Temperaturstufe auf dessen Betriebstemperatur einstellbar ist und dessen Einstellung auf eine höhere keimtötende zweite Temperaturstufe über ein Zeitglied steuerbar ist Durch diese Maßnahme tritt der Vorteil ein, daß lediglich zeitweise der gesamte Speicherinhalt hochgeheizt wird, um in der Zwischenzeit eine kritische Menge übersteigende Bakterien abtöten zu können. Danach wird wieder auf die normale Temperatur des Speichers umgeschaltet und der Speicher einige Zeit mit dieser normalen Temperaturstufe betrieben. Hierbei wird sich wieder eine geringfügige Anreicherung mit den abzutütenden Bakterien einstellen. Nach einer gewissen Zeit wird dann wieder über das Zeitglied auf die Dekontaminationsstufe umgeschallet. Die Wahl der Zeitintervalle, in denen auf die zweite keimtötende Temperatur umgeschaltet wird, ist von den Betriebsgegebenheiten des Speichers abhängig. Je höher die Norrnaltemperaturdes Speichers ist, um so weniger werden sich die Bakterien vermehren und um so weniger ist ein Hochheizen auf die keimtötende zweite Temperaturstufe notwendig. Andererseits ist ein Hochheizen auf die zweite Stufe um so öfter notwendig, je weniger Wasser aus dem Speicher entnommen wird. Die Wahl der Frequenz der Hochheizstufen liegt somit im Ermessen des Fachmanns.According to the invention, a two-stage thermostat is now provided to achieve the object, the first temperature stage of which can be adjusted to its operating temperature and the setting of which can be controlled via a timing element to a higher germicidal second temperature stage. This measure has the advantage that the entire memory content is only temporarily heated to be able to kill a critical amount of bacteria in the meantime. Then the normal temperature of the storage tank is switched over and the storage tank is operated at this normal temperature level for some time. This will result in a slight enrichment with the bacteria to be removed. After a certain time, the timer then switches over to the decontamination level. The choice of the time intervals in which the second germicidal temperature is switched over depends on the operating conditions of the store. The higher the normal temperature of the storage, the less the bacteria will multiply and the less heating up to the germicidal second temperature level is necessary. On the other hand, the less water is removed from the storage tank, the more often it is necessary to heat up to the second stage. The choice of the frequency of the heating stages is thus at the discretion of the person skilled in the art.

In Ausgestaltung der Erfindung wird vorgeschlagen, daß eine von der Zapfleitung des Speichers ausgehende und über dessen Kaltwasser-Zulaufleitung in den Speicher rückführende Umlaufleitung ein Rückschlagventil und eine vom Zeitglied über eine Steuerleitung einschaltbare Umlaufpumpe enthält. Durch diese Ausgestaltung gelingt zusätzlich eine Entkeimung eines sehr großen Bereichs der Zapfleitung, die vom Speicher zu einer oder mehreren Zapfstellen fühlt.In an embodiment of the invention it is proposed that a circulation line starting from the tap line of the storage and returning via the cold water supply line to the storage contains a check valve and a circulation pump which can be switched on by the timing element via a control line. This configuration additionally enables a very large area of the tap line to be sterilized, which senses from the reservoir to one or more tap points.

Zwei Ausführungsbeispiele des Erfindungsgegenstandes sind in den Zeichnungen schematisch veranschaulicht und nachstehend an Hand der dargestellten Schaltbilder erläutertTwo exemplary embodiments of the subject matter of the invention are illustrated schematically in the drawings and are explained below using the circuit diagrams shown

Im einzelnen zeigt Fig. 1 den Speicher (3), der über eine Kaltwasserzufuhrleitung (1) aus dem Versorgungsnetz gespeist mittels einer Heizvorrichtung (36) beheizt und über eine Zapfleitung (4) entleert wird.1 shows the reservoir (3) which is fed from the supply network via a cold water supply line (1) and heated by means of a heating device (36) and emptied via a tap line (4).

Die Temperatur des Speicherwassers wird vom Fühler (35) eines zweistufigen Thermostaten (30) überwacht dessen erste Temperaturstufe (31) auf die wählbare Temperatur des zu zapfenden Brauchwassers einstellbar ist und dessen zeitweise Umstellung auf eine höhere, keimtötende zweite Temperaturstufe (32) über ein Zeitglied (33) steuerbar ist Es mag zur Desinfektion ausreichen, eine solche Umstellung jede Woche auf die Dauer von etwa 2 Stunden vorzunehmen.The temperature of the storage water is monitored by the sensor (35) of a two-stage thermostat (30), the first temperature stage (31) of which can be adjusted to the selectable temperature of the domestic water to be drawn off and whose temporary changeover to a higher, germicidal second temperature stage (32) via a timer (33) is controllable It may be sufficient for disinfection to make such a change every week for about 2 hours.

Gemäß der Ausführungsform nach Fig. 2 enthält eine von der Zapfleitung (4) des Speichers (3) ausgehende und über dessen Kaltwasserzufuhrleitung (1) in den Speicher (3) rückführende Umlaufleitung (38) ein Rückschlagventil (39) und eine vom Zeitglied (33) über eine Steuerleitung (37) einschaltbare Umlaufpumpe (40).According to the embodiment according to FIG. 2, a circulation line (38) starting from the tap line (4) of the store (3) and returning via the cold water supply line (1) to the store (3) contains a check valve (39) and one from the timing element (33 ) via a control line (37) switchable circulation pump (40).

Durch diese Ausführungsform des Erfindungsgegenstandes wird der durch Besiedelung mit Kleinstlebewesen besonders gefährdete Bereich der Brauchwasseranlage zuverlässig desinfiziert -2-This embodiment of the subject of the invention reliably disinfects the area of the domestic water system that is particularly at risk from colonization with microorganisms.

Claims (2)

AT394 182 B 5 PATENTANSPRÜCHE 1. Vorrichtung zur Entkeimung von Wasser in einem Brauchwasserspeicher durch Erhitzen auf Entkeimungstem peratur, dadurch gekennzeichnet, daß, in an sich bekannter Weise, zur Überwachung der Temperatur des gespeicherten Wassers am Speicher (3) ein dessen Beheizung (36) steuernder Thermostat (30) vorgesehen ist, dessen erste Temperaturstufe (31) auf dessen Betriebstemperatur einstellbar ist und dessen Einstellung auf eine höhere, keimtötende zweite Temperaturstufe (32) über ein Zeitglied (33) steuerbar ist (Figuren 1 und 2). 15AT394 182 B 5 PATENT CLAIMS 1. Device for the disinfection of water in a service water storage tank by heating to sterilization temperature, characterized in that, in a manner known per se, for monitoring the temperature of the stored water at the storage tank (3) one of its heating (36) Controlling thermostat (30) is provided, the first temperature level (31) is adjustable to its operating temperature and the setting of a higher, germicidal second temperature level (32) can be controlled via a timer (33) (Figures 1 and 2). 15 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß eine von der Zapfleitung (4) des Speichers (3) ausgehende und über dessen Kaltwasserzufuhrleitung (1) in den Speicher (3) rückführende Umlaufleitung (38) ein Rückschlagventil (39) und eine vom Zeitglied (33) über eine Steuerleitung (37) einschaltbare Umlaufpumpe (40) enthält (Figur 2). 20 Hiezu 1 Blatt Zeichnung -3-2. Apparatus according to claim 1, characterized in that one of the tap line (4) of the memory (3) and via its cold water supply line (1) in the memory (3) returning circulation line (38) has a check valve (39) and one of Includes timer (33) via a control line (37) switchable circulation pump (40) (Figure 2). 20 Add 1 sheet drawing -3-
AT0069488A 1987-10-23 1988-03-15 HEATING DEVICE FOR DISINFECTING WATER IN A HOT WATER TANK AT394182B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AT0069488A AT394182B (en) 1988-03-15 1988-03-15 HEATING DEVICE FOR DISINFECTING WATER IN A HOT WATER TANK
PCT/DE1988/000661 WO1989003807A1 (en) 1987-10-23 1988-10-24 Prevention of the occurence or proliferation of microorganisms in water for industrial use
AU26040/88A AU2604088A (en) 1987-10-23 1988-10-24 Prevention of the occurence or proliferation of microorganisms in water for industrial use
EP88909284A EP0338056B1 (en) 1987-10-23 1988-10-24 Apparatus for prevention of the occurence or proliferation of microorganisms in water for industrial use
AT88909284T ATE100781T1 (en) 1987-10-23 1988-10-24 DEVICE TO PREVENT THE OCCURANCE OR. THE REPRODUCTION OF MICROLIFE IN PROCESSED WATER.
DE3836523A DE3836523A1 (en) 1987-10-23 1988-10-24 METHOD AND DEVICES FOR PREVENTING THE APPLICATION OR THE REPRODUCTION OF SMALL LIVING BEINGS IN HOT WATER
DE88909284T DE3887504D1 (en) 1987-10-23 1988-10-24 DEVICE FOR PREVENTING THE APPLICATION OR THE REPRODUCTION OF SMALL LIVING BEINGS IN HOT WATER.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0069488A AT394182B (en) 1988-03-15 1988-03-15 HEATING DEVICE FOR DISINFECTING WATER IN A HOT WATER TANK

Publications (2)

Publication Number Publication Date
ATA69488A ATA69488A (en) 1989-08-15
AT394182B true AT394182B (en) 1992-02-10

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Application Number Title Priority Date Filing Date
AT0069488A AT394182B (en) 1987-10-23 1988-03-15 HEATING DEVICE FOR DISINFECTING WATER IN A HOT WATER TANK

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AT (1) AT394182B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0590641A1 (en) * 1992-10-01 1994-04-06 Finn-Aqua Santasalo-Sohlberg Oy Method and device in a multi-stage distilling machine
EP2667104A3 (en) * 2012-05-24 2017-03-29 Glen Dimplex Deutschland GmbH System and method for warming drinking water

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3648438A (en) * 1971-02-09 1972-03-14 Alva G Arbogast Liquid purification and aeration system
DE2854921A1 (en) * 1977-12-21 1979-07-05 William H Leckie FUEL INJECTION DEVICE
DE2945568A1 (en) * 1979-11-10 1981-05-21 Wolfgang Dipl.-Phys. Dr.rer.nat. 5100 Aachen Thiele Hot-water supply system - has discharge detector cutting in circulating pump and connected to timer and regulator
DE3210585A1 (en) * 1982-03-23 1983-10-06 Rolf Wente Heating element thermostatic valve
DE3409742A1 (en) * 1983-03-19 1984-10-04 Satchwell Birka Regelungstechnik Gmbh, 5630 Remscheid Method for controlling a fluid temperature and device for implementing the method
DE3618186A1 (en) * 1985-06-08 1987-01-29 Kern & Grosskinsky Water distribution system for a mobile or stationary decontamination plant

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3648438A (en) * 1971-02-09 1972-03-14 Alva G Arbogast Liquid purification and aeration system
DE2854921A1 (en) * 1977-12-21 1979-07-05 William H Leckie FUEL INJECTION DEVICE
DE2945568A1 (en) * 1979-11-10 1981-05-21 Wolfgang Dipl.-Phys. Dr.rer.nat. 5100 Aachen Thiele Hot-water supply system - has discharge detector cutting in circulating pump and connected to timer and regulator
DE3210585A1 (en) * 1982-03-23 1983-10-06 Rolf Wente Heating element thermostatic valve
DE3409742A1 (en) * 1983-03-19 1984-10-04 Satchwell Birka Regelungstechnik Gmbh, 5630 Remscheid Method for controlling a fluid temperature and device for implementing the method
DE3618186A1 (en) * 1985-06-08 1987-01-29 Kern & Grosskinsky Water distribution system for a mobile or stationary decontamination plant

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SANITÄR- UND HEIZUNGSTECHNIK, KRAMMER VERLAG, DÜSSELDORF 53. JHG. JÄNNER 1988, S.17-31 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0590641A1 (en) * 1992-10-01 1994-04-06 Finn-Aqua Santasalo-Sohlberg Oy Method and device in a multi-stage distilling machine
US5487814A (en) * 1992-10-01 1996-01-30 Finn-Aqua Santasalo-Sohlberg Oy Method for distilling and sterilizing feed water
EP2667104A3 (en) * 2012-05-24 2017-03-29 Glen Dimplex Deutschland GmbH System and method for warming drinking water

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