EP1795818B1 - Method for water heating using a water heater and a multi-layered storage tank - Google Patents

Method for water heating using a water heater and a multi-layered storage tank Download PDF

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Publication number
EP1795818B1
EP1795818B1 EP06024756.6A EP06024756A EP1795818B1 EP 1795818 B1 EP1795818 B1 EP 1795818B1 EP 06024756 A EP06024756 A EP 06024756A EP 1795818 B1 EP1795818 B1 EP 1795818B1
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EP
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Prior art keywords
mass flow
heater
water
charging
temperature
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EP06024756.6A
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German (de)
French (fr)
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EP1795818A1 (en
Inventor
Ulrich Kröll
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Robert Bosch GmbH
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Robert Bosch GmbH
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    • 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
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/144—Measuring or calculating energy consumption
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/215—Temperature of the water before heating
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/219—Temperature of the water after heating
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/223—Temperature of the water in the water storage tank
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/305—Control of valves
    • F24H15/325—Control of valves of by-pass valves
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/335—Control of pumps, e.g. on-off control

Definitions

  • the invention relates to a method for hot water preparation with a heat generator and a stratified storage tank according to the preamble of claim 1.
  • Known stratified storage as for example DE 83 10 135 U1 show, have a water-filled storage container, in which due to the different density, a stratification between the located in the upper region of the storage tank warm water and the cold water located in the lower area.
  • a charging circuit is provided with a circulation pump, wherein the cooler water is conveyed from the lower region of the memory to a heat exchanger or a heat generator and undergoes heating there. The heated water is returned to the upper area of the storage tank. The warm water is taken from above via the hot water pipes leading to the connected taps and replaced by cold water supplied at the bottom.
  • a stable temperature stratification is also required during hot water removal and reloading.
  • the hot water supply has a flow guide in the form of a guide tube, which brings the supplied hot water of the charging circuit in the depth of the storage container.
  • a flow brake device is attached at the cold water outlet or cold water supply in the bottom region of the storage container.
  • various temperature sensors are known in connection with layer charge storage, with which, for example, the temperature of the entering into the heat generator or the temperature of the water mass flow exiting the heat generator or the hot water temperature in the storage tank can be detected.
  • a control device for the charging process is usually located in the control of the heat generator or the operation of the stratified charge storage is completely self-sufficient and independent of the state and on the type of heat generator.
  • d. H. Depending on the choice of Schichtlade appointmentsbauart and size, used charge pump and depending on the performance of the heat generator, specially adapted control devices would have to be created in order to achieve optimal interaction of the mentioned system components. This seems uneconomical from a manufacturing and logistic point of view. In addition, this would require a high configuration effort during installation on site and therefore may be error prone.
  • potential energy saving potential in a heating system and comfort potential for the plant users concerned may be given away if stratified storage tanks and heat generators are not optimally matched to each other.
  • the invention is based on the object to optimize the hot water with a heat generator and a stratified storage.
  • the method for hot water preparation with a heat generator and a stratified storage is characterized in that the control device is associated with the stratified charge storage for the loading and automatically adjusts to the plant situation.
  • the hot water preparation is optimized in conjunction with the associated heat generator and tuned to this.
  • a first function is provided for identifying the performance of the connected heat generator. This is activated on request and / or depending on operating situations.
  • the charge mass flow is increased from zero to a limit and the temperature of the water mass flow leaving the heat generator is detected.
  • the temperature rise per unit time is determined and stored in a function memory, so that can make good statements about the performance of the heat generator.
  • this will first function when commissioning the stratified charge storage system and / or activated after interruption of the power supply.
  • a second function is used to retrieve the maximum heat generator output and can be activated during hot water preparation, ie when the charge pump is switched on.
  • the charge mass flow is raised from an initial value at a fixed speed and the temperature of the water mass flow emerging from the heat generator is detected. If, as the mass flow increases, the temperature of the water mass flow leaving the heat generator increases, the mass flow of water is further increased. By contrast, the mass flow is reduced when the temperature of the water mass flow leaving the heat generator drops. In this case, the power limit of the heat generator was exceeded.
  • a third function includes the control logic of the stratified charge system during charging. This function is used in particular to regulate the operation of the charge pump, whereby it is determined which temperature sensors influence the charging pump with which default values. In general, the water mass flow during charging can be varied by regulating the power of the charge pump. Alternatively, this is also possible with a bypass control, wherein an electronically controlled valve is arranged in a bypass line bypassing the charge pump.
  • the inventive method is particularly well suited for instantaneous water heater, namely by fully exploiting the available power during charging or optimally introduced. It can be made in economic quantities a uniform control device for stratified storage, since individual solutions are not required. Furthermore, the commissioning of a generic heating system simplified by minimal configuration effort during installation on site.
  • the arrangement for carrying out the hot water preparation consists essentially of a heat generator 1 and a stratified storage tank 2 with a storage tank 3, in the bottom region at least one KaltwasserzuGermanrohr 4 and in the upper region at least one hot water supply pipe 5 opens.
  • About the heat generator 1 performs a charging circuit 6 with a charge pump. 8
  • Temperature sensors T1, T2, T3 are provided for detecting the temperature of the exiting from the heat generator, the entering into the heat generator 1 water mass flow and the hot water temperature in the storage tank. They are connected to a control device 7 in conjunction, as well as the built into the line to the heat generator 1 charge pump. 8
  • the charge pump 8 is when using a bypass control according to Fig. 2 combined with an electronically controlled valve 9, which is arranged in a bypass line 10 bypassing the charge pump 8.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Description

Die Erfindung betrifft ein Verfahren zur Warmwasserbereitung mit einem Wärmeerzeuger und einem Schichtladespeicher nach dem Oberbegriff des Patentanspruches 1.The invention relates to a method for hot water preparation with a heat generator and a stratified storage tank according to the preamble of claim 1.

Bekannte Schichtladespeicher, wie sie beispielsweise aus DE 83 10 135 U1 hervor gehen, weisen einen mit Wasser gefüllten Speicherbehälter auf, bei dem aufgrund der unterschiedlichen Dichte eine Schichtung zwischen dem im oberen Bereich des Speicherbehälters befindlichen warmen Wasser und dem sich im unteren Bereich befindlichen kalten Wasser entsteht. Zum Laden des Speichers ist ein Ladekreis mit einer Umwälzpumpe vorgesehen, wobei das kühlere Wasser aus dem unteren Bereich des Speichers zu einem Wärmetauscher oder einem Wärmeerzeuger gefördert wird und dort eine Erwärmung erfährt. Das erwärmte Wasser wird wieder in den oberen Bereich des Speicherbehälters eingeleitet. Über die zu angeschlossenen Zapfstellen führende Warmwasserleitung wird das Warmwasser oben entnommen und durch unten zugeführtes kaltes Wasser ersetzt.Known stratified storage, as for example DE 83 10 135 U1 show, have a water-filled storage container, in which due to the different density, a stratification between the located in the upper region of the storage tank warm water and the cold water located in the lower area. To charge the memory, a charging circuit is provided with a circulation pump, wherein the cooler water is conveyed from the lower region of the memory to a heat exchanger or a heat generator and undergoes heating there. The heated water is returned to the upper area of the storage tank. The warm water is taken from above via the hot water pipes leading to the connected taps and replaced by cold water supplied at the bottom.

Für eine optimale Funktion des Schichtladespeichers ist dabei auch während der Warmwasserentnahme und des Nachladens eine stabile Temperaturschichtung erforderlich. Aus der DE 38 35 096 C1 ist zum Beispiel ein Schichtenspeicher mit einem Speicherbehälter mit einer Warmwasserzuführung im oberen Abschnitt sowie einer Kaltwasserzuführung und Kaltwasserentnahmestelle im Bodenbereich, der die Merkmale des Oberbegriffs von Anspruch 1 zeigt, bekannt. Die Warmwasserzuführung verfügt über eine Strömungsleiteinrichtung in Form eines Leitrohres, welches das zugeführte Warmwasser des Ladekreises in die Tiefe des Speicherbehälters bringt. An der Kaltwasserentnahmestelle bzw. Kaltwasserzuleitung im Bodenbereich des Speicherbehälters ist eine Strömungsbremseinrichtung angebracht. Mit diesen Maßnahmen wird bezweckt, dass weitgehend nur laminare und turbulenzfreie Strömungen innerhalb des Speicherbehälters vorliegen und die Strömungsgeschwindigkeiten so begrenzt bleiben, dass die Strömung keine Injektorwirkung entwickelt, durch die kälteres Wasser in den oberen Speicherbereich mitgerissen werden kann oder umgekehrt heißes Wasser in den unteren Speicherbereich gelangt.For optimal operation of the stratified charge storage, a stable temperature stratification is also required during hot water removal and reloading. From the DE 38 35 096 C1 For example, a stratified storage tank with a storage tank with a hot water supply in the upper section and a cold water supply and cold water removal point in the floor area, which shows the features of the preamble of claim 1, is known. The hot water supply has a flow guide in the form of a guide tube, which brings the supplied hot water of the charging circuit in the depth of the storage container. At the cold water outlet or cold water supply in the bottom region of the storage container, a flow brake device is attached. These measures are intended to ensure that largely only laminar and turbulence-free flows are present within the storage tank and the flow rates remain limited so that the flow develops no injector through the colder water can be entrained in the upper storage area or vice versa hot water in the lower storage area arrives.

Weiterhin sind in Verbindung mit Schichtladespeichern verschiedene Temperaturfühler bekannt, mit denen beispielsweise die Temperatur des in den Wärmeerzeuger eintretenden oder die Temperatur des aus dem Wärmeerzeuger austretenden Wassermassenstromes oder die Warmwassertemperatur im Speicherbehälter erfasst werden kann.Furthermore, various temperature sensors are known in connection with layer charge storage, with which, for example, the temperature of the entering into the heat generator or the temperature of the water mass flow exiting the heat generator or the hot water temperature in the storage tank can be detected.

Eine Regeleinrichtung für den Ladevorgang befindet sich üblicherweise in der Regelung des Wärmeerzeugers oder der Betrieb des Schichtladespeichers erfolgt völlig autark und unabhängig vom Zustand und von der Art des Wärmeerzeugers. Je nach Anlagenkonfiguration, d. h. je nach Auswahl von Schichtladespeicherbauart und -größe, eingesetzter Ladepumpe sowie je nach Leistungscharakteristik des Wärmeerzeugers, müssten speziell angepasste Regeleinrichtungen geschaffen werden, um ein optimales Zusammenspiel der erwähnten Systemkomponenten zu erreichen. Dies erscheint aus fertigungstechnischer und logistischer Sicht unwirtschaftlich. Außerdem würde dies einen hohen Konfigurationsaufwand bei der Installation vor Ort erfordern und ist daher eventuell fehleranfällig. Andererseits wird aber möglicherweise Energieeinsparungspotenzial in einem Heizsystem sowie Komfortpotenzial für die betreffenden Anlagennutzer verschenkt, wenn Schichtladespeicher und Wärmeerzeuger nicht optimal aufeinander abgestimmt sind.A control device for the charging process is usually located in the control of the heat generator or the operation of the stratified charge storage is completely self-sufficient and independent of the state and on the type of heat generator. Depending on the system configuration, d. H. Depending on the choice of Schichtladespeicherbauart and size, used charge pump and depending on the performance of the heat generator, specially adapted control devices would have to be created in order to achieve optimal interaction of the mentioned system components. This seems uneconomical from a manufacturing and logistic point of view. In addition, this would require a high configuration effort during installation on site and therefore may be error prone. On the other hand, however, potential energy saving potential in a heating system and comfort potential for the plant users concerned may be given away if stratified storage tanks and heat generators are not optimally matched to each other.

Der Erfindung liegt die Aufgabe zu Grunde, die Warmwasserbereitung mit einem Wärmeerzeuger und einem Schichtladespeicher zu optimieren.The invention is based on the object to optimize the hot water with a heat generator and a stratified storage.

Erfindungsgemäß wird dies mit den Merkmalen des Patentanspruches 1 gelöst. Vorteilhafte Weiterbildungen sind den Unteransprüchen zu entnehmen.This is achieved with the features of claim 1 according to the invention. Advantageous developments can be found in the dependent claims.

Das Verfahren zur Warmwasserbereitung mit einem Wärmeerzeuger und einem Schichtladespeicher ist dadurch gekennzeichnet, dass die Regeleinrichtung für den Ladevorgang dem Schichtladespeicher zugeordnet ist und sich automatisch auf die Anlagensituation einstellt. Dadurch wird die Warmwasserbereitung im Zusammenhang mit dem zugeordneten Wärmeerzeuger optimiert und auf diesen abgestimmt.The method for hot water preparation with a heat generator and a stratified storage is characterized in that the control device is associated with the stratified charge storage for the loading and automatically adjusts to the plant situation. As a result, the hot water preparation is optimized in conjunction with the associated heat generator and tuned to this.

Eine erste Funktion ist zur Identifikation der Leistungscharakteristik des angeschlossenen Wärmeerzeugers vorgesehen. Diese wird auf Anforderung und/oder in Abhängigkeit von Betriebssituationen aktiviert. Dabei wird der Lademassenstrom von Null auf einen Grenzwert gesteigert und die Temperatur des aus dem Wärmeerzeuger austretenden Wassermassenstromes wird erfasst. Insbesondere der Temperaturanstieg pro Zeiteinheit wird ermittelt und in einem Funktionsspeicher hinterlegt, so dass sich gute Aussagen über die Leistungscharakteristik des Wärmeerzeugers machen lassen. Vorzugsweise wird diese erste Funktion bei Inbetriebnahme des Schichtladespeicher-Systems und/oder nach Unterbrechung der Stromversorgung aktiviert.A first function is provided for identifying the performance of the connected heat generator. This is activated on request and / or depending on operating situations. The charge mass flow is increased from zero to a limit and the temperature of the water mass flow leaving the heat generator is detected. In particular, the temperature rise per unit time is determined and stored in a function memory, so that can make good statements about the performance of the heat generator. Preferably, this will first function when commissioning the stratified charge storage system and / or activated after interruption of the power supply.

Eine zweite Funktion dient zum Abruf der maximalen Wärmeerzeuger-Leistung und ist während der Warmwasserbereitung, also bei eingeschalteter Ladepumpe, aktivierbar. Dabei wird der Lademassenstrom von einem Ausgangswert mit einer festgelegten Geschwindigkeit angehoben und die Temperatur des aus dem Wärmeerzeuger austretenden Wassermassenstromes erfasst. Wenn bei zunehmendem Massenstrom die Temperatur des aus dem Wärmeerzeuger austretenden Wassermassenstromes steigt, wird der Wassermassenstrom weiter angehoben. Dagegen wird der Massenstrom reduziert, wenn die Temperatur des aus dem Wärmeerzeuger austretenden Wassermassenstromes fällt. In diesem Fall war die Leistungsgrenze des Wärmeerzeugers überschritten.A second function is used to retrieve the maximum heat generator output and can be activated during hot water preparation, ie when the charge pump is switched on. In this case, the charge mass flow is raised from an initial value at a fixed speed and the temperature of the water mass flow emerging from the heat generator is detected. If, as the mass flow increases, the temperature of the water mass flow leaving the heat generator increases, the mass flow of water is further increased. By contrast, the mass flow is reduced when the temperature of the water mass flow leaving the heat generator drops. In this case, the power limit of the heat generator was exceeded.

Eine dritte Funktion beinhaltet die Regellogik des Schichtladesystems beim Ladevorgang, Mit dieser Funktion wird insbesondere der Betrieb der Ladepumpe geregelt, wobei damit bestimmt ist, welche Temperaturfühler mit welchen Vorgabewerten auf den Betrieb der Ladepumpe Einfluss haben. Generell kann der Wassermassenstrom beim Ladevorgang durch Regeln der Leistung der Ladepumpe variiert werden. Alternativ dazu ist dies auch mit einer Bypassregelung möglich, wobei in einer die Ladepumpe umgehenden Bypassleitung ein elektronisch geregeltes Ventil angeordnet ist.A third function includes the control logic of the stratified charge system during charging. This function is used in particular to regulate the operation of the charge pump, whereby it is determined which temperature sensors influence the charging pump with which default values. In general, the water mass flow during charging can be varied by regulating the power of the charge pump. Alternatively, this is also possible with a bypass control, wherein an electronically controlled valve is arranged in a bypass line bypassing the charge pump.

Mit der Erfindung steht ein einfaches Verfahren zur Warmwasserbereitung mit einem Wärmeerzeuger und einem Schichtladespeicher zur Verfügung, welches vollkommen unabhängig vom zugeordneten Wärmeerzeuger bleibt, aber für eine optimale Abstimmung der wesentlichen Systemkomponenten sorgt. Insbesondere die Leistungsfähigkeit und das charakteristische Betriebsverhalten des zugeordneten Wärmeerzeugers werden erkannt und berücksichtigt. Daher eignet sich das erfindungsgemäße Verfahren besonders gut für Durchlauferhitzer, indem nämlich die zur Verfügung stehende Leistung bei Ladevorgang voll ausgenutzt bzw. optimal eingebracht wird. Es kann eine einheitliche Regeleinrichtung für Schichtladespeicher in wirtschaftlichen Stückzahlen gefertigt werden, da Einzellösungen nicht erforderlich sind. Weiterhin vereinfacht sich die Inbetriebnahme eines gattungsgemäßen Heizsystems durch minimalen Konfigurationsaufwand bei der Installation vor Ort.With the invention, a simple method for hot water preparation with a heat generator and a stratified storage is available, which remains completely independent of the associated heat generator, but provides for optimal coordination of the essential system components. In particular, the performance and the characteristic performance of the associated heat generator are recognized and taken into account. Therefore, the inventive method is particularly well suited for instantaneous water heater, namely by fully exploiting the available power during charging or optimally introduced. It can be made in economic quantities a uniform control device for stratified storage, since individual solutions are not required. Furthermore, the commissioning of a generic heating system simplified by minimal configuration effort during installation on site.

Die Zeichnung stellt ein Ausführungsbeispiel der Erfindung dar. Eine zeigt jeweils schematisch eine Anordnung zur Durchführung der Warmwasserbereitung:

Fig. 1:
mit einer geregelten Ladepumpe und
Fig. 2:
mit einer Bypassregelung.
The drawing shows an embodiment of the invention. One shows in each case schematically an arrangement for carrying out the hot water preparation:
Fig. 1:
with a regulated charge pump and
Fig. 2:
with a bypass control.

Die Anordnung zur Durchführung der Warmwasserbereitung besteht im Wesentlichen aus einem Wärmeerzeuger 1 und einem Schichtladespeicher 2 mit einem Speicherbehälter 3, in dessen Bodenbereich mindestens ein Kaltwasserzuführrohr 4 und in dessen oberen Bereich mindestens ein Warmwasserzuführrohr 5 mündet. Über den Wärmeerzeuger 1 führt ein Ladekreis 6 mit einer Ladepumpe 8.The arrangement for carrying out the hot water preparation consists essentially of a heat generator 1 and a stratified storage tank 2 with a storage tank 3, in the bottom region at least one Kaltwasserzuführrohr 4 and in the upper region at least one hot water supply pipe 5 opens. About the heat generator 1 performs a charging circuit 6 with a charge pump. 8

Temperaturfühler T1, T2, T3 sind für die Erfassung der Temperatur des aus dem Wärmeerzeuger austretenden, des in den Wärmeerzeuger 1 eintretenden Wassermassenstromes und die Warmwassertemperatur im Speicherbehälter vorgesehen. Sie stehen mit einer Regeleinrichtung 7 in Verbindung, ebenso wie die in die Leitung zum Wärmeerzeuger 1 eingebaute Ladepumpe 8.Temperature sensors T1, T2, T3 are provided for detecting the temperature of the exiting from the heat generator, the entering into the heat generator 1 water mass flow and the hot water temperature in the storage tank. They are connected to a control device 7 in conjunction, as well as the built into the line to the heat generator 1 charge pump. 8

Die Ladepumpe 8 ist bei Anwendung einer Bypassregelung gemäß Fig. 2 mit einem elektronisch geregelten Ventil 9 kombiniert, welches in einer die Ladepumpe 8 umgehenden Bypassleitung 10 angeordnet ist.The charge pump 8 is when using a bypass control according to Fig. 2 combined with an electronically controlled valve 9, which is arranged in a bypass line 10 bypassing the charge pump 8.

Claims (8)

  1. Method for water heating using a heater (1) and a stratified storage tank (2) having a storage container (3) into the bottom region of which there opens at least one cold water supply pipe (4) and into the top region of which there opens at least one hot water supply pipe (5), and which is connected to a charge circuit (6) that passes via the heater (1) and that has a charging pump (8), with temperature sensors (T1, T2, T3) for the temperature of the water mass flow entering and/or leaving the heater (1) and/or the hot water temperature in the storage container (3), and with a control device (7) for the charging procedure, wherein the control device (7) for the charging procedure is assigned to the stratified storage tank (2),
    characterized in that the control device adjusts automatically to the installation situation and optimizes the water heating with
    • a first function for identifying the power characteristic of the connected heater (1),
    • a second function for calling up maximum power of the heater (1) and
    • a third function for the control logic of the stratified charging system during the charging procedure.
  2. Method according to Claim 1,
    characterized in that the first function can be activated in order to identify the power characteristic of the connected heater (1) on demand and/or in dependence on operating situations, wherein the charge mass flow is increased from zero to a limit value and the temperature of the water mass flow leaving the heater (1) is detected, and wherein the control device (7) determines the power characteristic of the heater (1), in particular via the temperature increase per unit time, and stores this in a function memory.
  3. Method according to Claim 1 or 2,
    characterized in that the first function can be activated at start-up of the stratified storage tank system and/or after an interruption in the electricity supply.
  4. Method according to one of Claims 1 to 3,
    characterized in that the second function is activated during water heating in order to call up the maximum power of the heater (1), during which the charging mass flow is raised from a starting value at a fixed rate and the temperature of the water mass flow leaving the heater (1) is detected.
  5. Method according to Claim 4,
    characterized in that the water mass flow is raised further if, for an increasing mass flow, the temperature of the water mass flow leaving the heater (1) increases, and in that the mass flow is reduced if the temperature of the water mass flow leaving the heater (1) drops.
  6. Method according to one of Claims 1 to 5,
    characterized in that the third function contains the control logic of the stratified charging system during the charging procedure, and in that this function in particular controls the operation of the charging pump (8), wherein this determines which temperature sensor (T1, T2, T3) with which setpoint values have an influence on the operation of the charging pump (8).
  7. Method according to one of Claims 1 to 6,
    characterized in that the water mass flow is varied during the charging procedure by controlling the power of the charging pump (8).
  8. Method according to one of Claims 1 to 7,
    characterized in that the water mass flow is varied during the charging procedure using a bypass control, wherein an electronically controlled valve (9) is arranged in a bypass line (10) that bypasses the charging pump (8).
EP06024756.6A 2005-12-08 2006-11-30 Method for water heating using a water heater and a multi-layered storage tank Not-in-force EP1795818B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005058570A DE102005058570B3 (en) 2005-12-08 2005-12-08 Method for controlling water heater and hot water tank with a control circuit to monitor the effect of the heater to optimize the heating to match the hot water demands

Publications (2)

Publication Number Publication Date
EP1795818A1 EP1795818A1 (en) 2007-06-13
EP1795818B1 true EP1795818B1 (en) 2016-02-24

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EP06024756.6A Not-in-force EP1795818B1 (en) 2005-12-08 2006-11-30 Method for water heating using a water heater and a multi-layered storage tank

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EP (1) EP1795818B1 (en)
DE (1) DE102005058570B3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT504286B1 (en) 2006-09-18 2008-09-15 Vaillant Austria Gmbh METHOD FOR LOADING A HOT WATER TANK
DE102007033564B3 (en) * 2007-07-19 2009-01-02 Robert Bosch Gmbh Method for operating a stratified charge storage and domestic hot water system
FR2928442B1 (en) * 2008-03-06 2010-12-17 Mer Joseph Le HOT WATER PRODUCTION FACILITY
CN102865663B (en) * 2012-08-03 2015-04-15 苏州新亚科技有限公司 Galvanized steel sheet water heater antirust water tank and corrosion prevention method thereof
EP3062027B1 (en) * 2015-02-25 2018-06-06 Vaillant GmbH Heat storage system and method for its operation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8310135U1 (en) * 1983-04-07 1983-08-11 Nova-Apparatebau GmbH + Co, 7710 Donaueschingen HOT WATER LAYER STORAGE
DE3835096A1 (en) * 1988-10-14 1990-04-19 Sandler Martin Dipl Ing Fh Layered hot-water storage tank
DE19515467A1 (en) * 1995-04-27 1996-10-31 Marek Dipl Ing Gross Measuring heat supply in remote distribution heating installations
DE19924758B4 (en) * 1999-05-29 2012-04-12 Robert Bosch Gmbh Device for heating process water
DE10032714A1 (en) * 2000-07-07 2002-01-24 Solvis Solarsysteme Gmbh Arrangement and method for providing hot domestic water

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EP1795818A1 (en) 2007-06-13
DE102005058570B3 (en) 2007-05-24

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