DE19954943A1 - Killing Legionnaire's disease bacteria involves heating of flowing drinking water and thermally disinfecting it through stay in tank for a specified period at a specified temperature - Google Patents
Killing Legionnaire's disease bacteria involves heating of flowing drinking water and thermally disinfecting it through stay in tank for a specified period at a specified temperatureInfo
- Publication number
- DE19954943A1 DE19954943A1 DE19954943A DE19954943A DE19954943A1 DE 19954943 A1 DE19954943 A1 DE 19954943A1 DE 19954943 A DE19954943 A DE 19954943A DE 19954943 A DE19954943 A DE 19954943A DE 19954943 A1 DE19954943 A1 DE 19954943A1
- Authority
- DE
- Germany
- Prior art keywords
- drinking water
- tank
- temperature
- killing
- legionnaire
- 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.)
- Ceased
Links
Classifications
-
- 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
-
- 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
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Erwärmen von Trinkwasser und zum Abtöten von Legionellen in diesem Trinkwasser, mit einer Kaltwasserzuleitung zu einem ersten Wärmeübertrager zum Vorwärmen des zugeführten Kaltwassers und zum Abkühlen des auf Desinfektionstemperatur erwärmten Trinkwassers aus einem Desinfektionsspeicher im Gegenstrom über diesen ersten Wärmeübertrager, wobei während der Zapfruhe der gesamte Zirkulationsvolumenstrom thermisch desinfiziert wird, ohne dass das warmwasserführende Rohrnetz aus Gründen des Verbrühungsschutzes für die Nutzer auf die Desinfektions temperatur erwärmt wird.The invention relates to a method and an apparatus for Heating drinking water and killing legionella in this drinking water, with a cold water supply to one first heat exchanger for preheating the cold water supplied and to cool down the heated to disinfection temperature Drinking water from a disinfection store in counterflow this first heat exchanger, the during the tapping rest entire circulation volume flow is thermally disinfected, without the hot water pipe network for reasons of Scalding protection for users on disinfection temperature is heated.
Einzelne Komponenten aus bekannten Vorrichtungen der vorgenannten Art sind bekannt (GB 20 99 559, DE 38 40 516, DE 42 35 038). Diese Druckschriften zeigen Anlagen mit thermischer Desinfektion in Verbindung mit Warmwasserspeichern oder Speicherladesystemen, wobei jedoch vom Zirkulationsvolumenstrom nur eine Teilmenge ständig desinfiziert werden kann.Individual components from known devices of the the aforementioned type are known (GB 20 99 559, DE 38 40 516, DE 42 35 038). These documents show systems with thermal Disinfection in connection with hot water storage tanks or Storage charging systems, but from the circulation volume flow only a subset can be continuously disinfected.
Ziel der vorliegenden Erfindung ist eine Trinkwassererwärmungs anlage im Durchflusssystem zu schaffen, Zu diesem Zweck sorgen nachgeschaltete Desinfektionsspeicher für die nötige Kontaktzeit zur Abtötung von Legionellen. Danach wird das thermisch desinfizierte Wasser mit nachfolgender Mischung über ein Mischventil mit hochtemperiertem desinfiziertem Wasser auf eine einstellbare Gebrauchstemperatur gebracht, wobei ständig der gesamte Zirkulationsvolumenstrom während der Zapfruhe thermisch desinfiziert wird. The aim of the present invention is a drinking water heating To create a system in the flow system, ensure for this purpose downstream disinfection memory for the necessary contact time to kill Legionella. Then it becomes thermal disinfected water with subsequent mixture over one Mixing valve with high temperature disinfected water on one adjustable operating temperature, the constant total circulation volume flow during the tapping rest thermally is disinfected.
Erreicht wird dies bei einem Verfahren der eingangs genannten Art dadurch, dass das während des Zapfvorganges über die Kaltwasserzuleitung in einem ersten Wärmeübertrager eintretende Kaltwasser vorgewärmt in einem zweiten Wärmeübertrager eintritt, von diesem auf die Desinfektionstemperatur erwärmt, von oben in den Desinfektionsspeicher eintritt, diesen nach einer definierten Desinfektionszeit mit der Desinfektionstemperatur am unteren Speicheranschluss verlässt und mit einer Teilmenge von dem Wärmübertrager auf 25°bis 30°C heruntergekühlt wird.This is achieved with a method of the type mentioned at the beginning Kind of the fact that during the tap process on the Cold water supply entering a first heat exchanger Cold water preheated enters a second heat exchanger from this heated to the disinfection temperature, from above in the disinfection memory enters, this after a defined disinfection time with the disinfection temperature on lower storage port leaves and with a subset of the heat exchanger is cooled down to 25 ° to 30 ° C.
Beide thermisch desinfizierten Teilmengen werden durch ein Mischventil auf die eingestellt Solltemperatur gemischt und fließen zu den Verbrauchern.Both thermally disinfected subsets are replaced by a Mixing valve mixed to the set target temperature and flow to consumers.
Während der Zapfruhe pumpt die Zirkulationspumpe den gesamten Inhalt des warmwasserführenden Rohrnetzes etwa 3 × pro Stunde um.The circulation pump pumps the entire one during the dispensing period Contents of the hot water pipe network about 3 × per hour around.
Dabei tritt der gesamte Zirkulationsvolumenstrom in den Wärmeübertrager mit etwa 45°C ein, wird durch die im Gegenstrom fließende thermisch desinfizierte Teilwassermenge auf 60°C erwärmt, wird weiter durch den Wärmeübertrager auf die Desinfektionstemperatur erhitzt, tritt von oben in den Desinfektionsspeicher ein, verlässt diesen nach einer definierten Zeit thermisch desinfiziert über den unteren Anschluss, fließt mit einem Teilstrom über den Wärmeübertrager, wird auf etwa 46°C heruntergekühlt und fließt mit dem zweiten hochtemperierten Teilstrom an diesem Wärmeübertrager vorbei. Beide thermisch desinfizierten Teilströme werden über das Zirkulationsmischventil zusammengeführt und zur Solltemperatur gemischt. The entire circulation volume flow enters the Heat exchanger at about 45 ° C, is countercurrent by flowing, thermally disinfected partial water volume to 60 ° C is further heated by the heat exchanger on the Disinfection temperature heated, enters from above Disinfection memory, leaves it after a defined time thermally disinfected over the lower Connection, flows with a partial flow over the heat exchanger, is cooled down to about 46 ° C and flows with the second high-temperature partial flow past this heat exchanger. Both thermally disinfected partial flows are over the Circulation mixing valve merged and to the target temperature mixed.
Der Zirkulationskreislauf mit thermischer Desinfektion ist geschlossen. Ein Legionellenwachstum ist bei bestimmungsgemäßem Betrieb weitgehend ausgeschlossen.The circulation circuit with thermal disinfection is closed. Legionella growth is normal Operation largely excluded.
Die Erfindung wird nachstehend anhand der Zeichnung beispiels weise erläutert.The invention is illustrated below with reference to the drawing explained wisely.
Fig. 1 zeigt eine Vorrichtung zur Durchführung des Verfahrens gemäß der Erfindung beim Zapfen Fig. 1 shows an apparatus for performing the method according to the invention when tapping
Fig. 2 zeigt einer Vorrichtung zur Durchführung des Verfahrens der Erfindung während der Zapfruhe. Fig. 2 shows an apparatus for performing the method of the invention during the standby.
In der Zeichnung ist mit 2 ein Desinfektionsspeicher bezeichnet. Trinkwasser kann über einen Wärmetauscher 10 und 1 auf 60 bis 65°C erhitzt werden.In the drawing, 2 denotes a disinfection memory. Drinking water can be heated to 60 to 65 ° C via a heat exchanger 10 and 1 .
Über eine Abgangsleitung wird auf 60 bis 65°C erhitztes Trinkwasser über den Wärmeübertrager 10 geführt und verlässt diesen mit Temperaturen im Bereich vom 25 bis 30°C. Dieses so abgekühlte desinfizierte Brauchwasser gelangt zu Mischventilen 11 bzw. 12 und von dort über eine Pumpe 14 zu den Zapfstellen.Drinking water heated to 60 to 65.degree. C. is passed via an outlet line via the heat exchanger 10 and leaves it at temperatures in the range from 25 to 30.degree. This disinfected industrial water cooled in this way reaches mixing valves 11 and 12 and from there via a pump 14 to the tapping points.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19954943A DE19954943A1 (en) | 1998-11-23 | 1999-11-16 | Killing Legionnaire's disease bacteria involves heating of flowing drinking water and thermally disinfecting it through stay in tank for a specified period at a specified temperature |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853929 | 1998-11-23 | ||
DE19954943A DE19954943A1 (en) | 1998-11-23 | 1999-11-16 | Killing Legionnaire's disease bacteria involves heating of flowing drinking water and thermally disinfecting it through stay in tank for a specified period at a specified temperature |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19954943A1 true DE19954943A1 (en) | 2000-05-25 |
Family
ID=7888681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19954943A Ceased DE19954943A1 (en) | 1998-11-23 | 1999-11-16 | Killing Legionnaire's disease bacteria involves heating of flowing drinking water and thermally disinfecting it through stay in tank for a specified period at a specified temperature |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19954943A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002012125A2 (en) * | 2000-08-04 | 2002-02-14 | Battelle Memorial Institute | Thermal water treatment |
EP1448480A1 (en) * | 2001-11-27 | 2004-08-25 | John Innes Coffey | Method for controlling legionella in cooling towers |
FR2866572A1 (en) * | 2004-02-25 | 2005-08-26 | Christian Pierre Michel | Apparatus for producing sanitary hot water, with eradication of Legionella-type bacteria at source, avoids injection of contaminated cold water into the hot water system |
FR2874326A1 (en) * | 2004-08-20 | 2006-02-24 | Caleffi France Sarl | System for control of Legionella in hot and cold water plumbing circuits comprises a flow stabilizer, a three-way valve, a heat exchanger, four non-return valves, a mixing valve and anti-scald cartridges |
EP1693344A1 (en) * | 2005-02-18 | 2006-08-23 | Sirius 12 GmbH | Device for the thermal disinfection of potable water supply installations |
FR2889696A1 (en) * | 2005-08-09 | 2007-02-16 | Ass Gradient Ass Loi De 1901 | Decontaminating large volume of water reference from nuclear thermal power stations, comprises drawing out large volume of water, supplying a small volume of water and treating the water present in the small volume |
DE202008004421U1 (en) | 2008-04-01 | 2008-07-03 | Kesap Kessel- Und Apparatebau Gmbh | Device for heating drinking water |
EP3203156A3 (en) * | 2016-02-03 | 2017-11-01 | Bruno Schramm | Method and device for heating drinking water |
-
1999
- 1999-11-16 DE DE19954943A patent/DE19954943A1/en not_active Ceased
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002012125A2 (en) * | 2000-08-04 | 2002-02-14 | Battelle Memorial Institute | Thermal water treatment |
WO2002012125A3 (en) * | 2000-08-04 | 2003-01-09 | Battelle Memorial Institute | Thermal water treatment |
EP1448480A1 (en) * | 2001-11-27 | 2004-08-25 | John Innes Coffey | Method for controlling legionella in cooling towers |
EP1448480A4 (en) * | 2001-11-27 | 2005-02-02 | John Innes Coffey | Method for controlling legionella in cooling towers |
FR2866572A1 (en) * | 2004-02-25 | 2005-08-26 | Christian Pierre Michel | Apparatus for producing sanitary hot water, with eradication of Legionella-type bacteria at source, avoids injection of contaminated cold water into the hot water system |
FR2874326A1 (en) * | 2004-08-20 | 2006-02-24 | Caleffi France Sarl | System for control of Legionella in hot and cold water plumbing circuits comprises a flow stabilizer, a three-way valve, a heat exchanger, four non-return valves, a mixing valve and anti-scald cartridges |
EP1693344A1 (en) * | 2005-02-18 | 2006-08-23 | Sirius 12 GmbH | Device for the thermal disinfection of potable water supply installations |
FR2889696A1 (en) * | 2005-08-09 | 2007-02-16 | Ass Gradient Ass Loi De 1901 | Decontaminating large volume of water reference from nuclear thermal power stations, comprises drawing out large volume of water, supplying a small volume of water and treating the water present in the small volume |
DE202008004421U1 (en) | 2008-04-01 | 2008-07-03 | Kesap Kessel- Und Apparatebau Gmbh | Device for heating drinking water |
DE102009012541A1 (en) | 2008-04-01 | 2009-11-19 | Kesap Kessel Und Apparatebau Gmbh | Device for heating drinking water |
EP3203156A3 (en) * | 2016-02-03 | 2017-11-01 | Bruno Schramm | Method and device for heating drinking water |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8131 | Rejection |