EP1450111B1 - Procédé pour determiner une demande de chaleur et dispositif de chauffage pour mettre ledit procédé en oeuvre - Google Patents

Procédé pour determiner une demande de chaleur et dispositif de chauffage pour mettre ledit procédé en oeuvre Download PDF

Info

Publication number
EP1450111B1
EP1450111B1 EP03027441A EP03027441A EP1450111B1 EP 1450111 B1 EP1450111 B1 EP 1450111B1 EP 03027441 A EP03027441 A EP 03027441A EP 03027441 A EP03027441 A EP 03027441A EP 1450111 B1 EP1450111 B1 EP 1450111B1
Authority
EP
European Patent Office
Prior art keywords
circuit
temperature
hot water
heat exchanger
heat
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.)
Expired - Lifetime
Application number
EP03027441A
Other languages
German (de)
English (en)
Other versions
EP1450111A3 (fr
EP1450111A2 (fr
Inventor
Goesling Bernulf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1450111A2 publication Critical patent/EP1450111A2/fr
Publication of EP1450111A3 publication Critical patent/EP1450111A3/fr
Application granted granted Critical
Publication of EP1450111B1 publication Critical patent/EP1450111B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
    • F24D19/1081—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water counting of 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
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/144—Measuring or calculating energy consumption
    • F24H15/148—Assessing the current 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
    • 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
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/305—Control of valves
    • F24H15/32—Control of valves of switching 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
    • F24H15/355—Control of heat-generating means in heaters
    • F24H15/36—Control of heat-generating means in heaters of burners

Definitions

  • the invention relates to a method for determining a current heat demand of a hot water circuit, in particular a hot water supply system of a building.
  • the invention also relates to a heating device for heating such a hot water circuit, which is suitable for carrying out such a method.
  • a hot water circuit can be heated by means of a heater, for example, characterized in that the heating means by means of a first heat exchanger heats a coupling liquid circuit, which in turn heats the hot water circuit via a second heat exchanger.
  • the hot water removed from the hot water always has a predetermined hot water temperature.
  • the hot water requirement is not constant, but rather can be subject to strong fluctuations, there is a need to operate the heater so that is warmed at variierdendem hot water demand of the hot water circuit always about the same desired hot water temperature.
  • a current heat demand of the Hot water circuit is required because this specifies the heat energy that must be introduced by the heater in the hot water circuit in order to achieve the desired hot water temperature can.
  • From DE 198 34 742 A1 discloses a method for controlling the heat transfer to heat exchangers is known, in which the delivery rate, ie usually the speed of the pump, is regulated according to the heat quantity detected in the same circulation system per time as the primary reference variable.
  • the delivery rate is controlled so that the amount of heat transferred per unit time forms a maximum. In this way, the efficiency of a heat exchanger should be improved even with different heat and heat consumption.
  • the current heat demand of the hot water circuit can be determined, for example, based on the current volume flow in the hot water circuit.
  • the required for determining the current flow meters or sensors are relatively expensive. There is therefore a need for a low-cost solution.
  • the present invention according to the independent claims has the advantage that the current heat demand of the hot water circuit without knowing the current volume flow in the hot water circuit can be determined from suitable temperatures. Since temperature sensors are significantly cheaper than Volumenstrommeß wornen, resulting in the present invention, a significant cost advantage.
  • a first temperature in the coupling fluid circuit at an inlet of the second heat exchanger and a second temperature in the coupling fluid circuit at an outlet of the second heat exchanger are used to determine the current heat demand. From these temperatures can be determined by subtraction and / or averaging the output from the coupling cooling circuit to the second heat exchanger heat, which corresponds apart from efficiency losses of introduced into the hot water circuit heat.
  • the invention uses the recognition that a pump, which serves to drive the liquid in the coupling liquid circuit, is operated constantly. This always results in a constant relationship between the temperature change of the coupling liquid circuit in the flow through the second heat exchanger on the one hand and the current heat demand of the hot water circuit on the other.
  • This relationship can, for example, be taken into account computationally and / or according to the characteristic field in order to arrive at a value from the measured temperatures which corresponds to or correlates with the current heat requirement.
  • This value can then form a parameter for actuating the heating device in the form of a corresponding signal, so that it is possible to actuate the heating device as a function of the current heat requirement.
  • This feedback which can be performed permanently or periodically with uniform or irregular intervals, then results in a closed control loop, which has a quasi-indirect effect on the temperature control of the hot water circuit.
  • the temperature control is adapted in the sense of a regulation. Aging phenomena of the heater can thus be compensated for particularly elegant.
  • the sole FIGURE 1 shows a circuit diagram-like schematic diagram of a heating device according to the invention.
  • a heating device 1 comprises a burner 2, the combustion chamber 3 of which is coupled to transfer heat to a first heat exchanger 4 is.
  • the first heat exchanger 4 is incorporated in a coupling liquid circuit 5 and thus can be flowed through by a coupling liquid.
  • a second heat exchanger 6 is also involved, to which also a hot water circuit 7, for example, a hot water supply system of a building, not shown, is connected. Accordingly, the second heat exchanger 6 on the one hand by the coupling liquid of the coupling liquid circuit 5 and on the other hand by the water of the hot water circuit 7 can be flowed through.
  • the coupling liquid circuit 5 may be formed by a partial circle of a heating circuit 8 for heating this building. If the coupling liquid circuit 5 is a partial circuit of the heating circuit 8, in particular a central heating system, a coupling branch 9 of the coupling liquid circuit 5 connects a supply line 10 of the heating circuit 8 coming from the first heat exchanger 4 to a return flow 11 of the first heat exchanger 4 Heating circuit 8. In this coupling branch 9, the second heat exchanger 6 is then arranged. With the aid of a switching valve 12, the liquid flow through the heating circuit 8 and through the coupling branch 9 can be adjusted. For actuating the switching valve 12, a servomotor 13 is provided here.
  • the heating circuit 8 or the coupling fluid circuit 5 contains a pump 14.
  • a first temperature sensor 15 is arranged in the coupling liquid circuit 5, which measures a momentary first temperature t 1 of the coupling liquid. Assuming that no or only a negligible heat loss occurs from the first heat exchanger 4 to the second heat exchanger 6, the first temperature t 1 measured by the first temperature sensor 15 corresponds to the temperature which the coupling liquid has at an inlet 16 of the second heat exchanger 6.
  • a second temperature sensor 17 is arranged in the coupling branch 9, which measures a second temperature t 2 of the coupling liquid downstream of the second heat exchanger 6 and upstream of the return 11. This second temperature t 2 corresponds to that temperature which has the coupling liquid at an outlet 18 of the second heat exchanger 6.
  • the heating device 1 can also have a third temperature sensor 19, which is arranged in the hot water circuit 7 downstream of the second heat exchanger 6 and upstream of subsequent heat consumers. Accordingly, the third temperature sensor measures a third temperature t 3 , which prevails in the hot water circuit 7 at a further outlet 20 of the second heat exchanger 6.
  • the heater 1 further comprises a controller 21 for operating the pump 14, the burner 2 and the switching valve 12 and the actuator 13.
  • the controller 21 is connected to the temperature sensors 15,17,19. Corresponding control lines and signal lines are symbolized by broken lines.
  • the controller 21 is configured in the present invention such that It can determine a current heat demand of the hot water circuit 7 on the basis of the first temperature t 1 and the second temperature t 2 . Depending on this heat demand, the controller 21 can then operate the burner 2 in a suitable manner. The aim of this control is to set a desired hot water temperature, which corresponds to the third temperature t 3 .
  • the heating device 1 operates as follows:
  • the first temperature t 1 and the second temperature t 2 are approximately equal.
  • the hot water circuit 7 has to deliver hot water or heat
  • relatively cold water is supplied in the second heat exchanger 6 via the hot water circuit 7, which is to be heated to the desired hot water temperature. Due to the temperature difference, the second heat exchanger 6 can now transfer heat from the coupling liquid circuit 5 to the hot water circuit 7.
  • This temperature drop is a measure of the heat demand of the hot water circuit 7.
  • the said temperature change can determine the controller 21 with the aid of the first temperature sensor 15 and the second temperature sensor 17.
  • the controller 21 may, for example, a difference between the first temperature t 1 and the second temperature t 2 determine. Alternatively or additionally, the controller 21 may determine an average of the measured temperatures t 1 and t 2 .
  • the controller 21 can calculate the current heat demand, for example by means of a suitable calculation formula, or determine it on the basis of characteristic diagrams.
  • the controller 21 thus determines from the two temperatures t 1 and t 2 a size that correlates with the current temperature requirement of the hot water circuit 7. Since the controller 21 also knows the instantaneous heat output of the burner 2 and possibly the instantaneous heat demand of the heating circuit 8, the controller 21 by a corresponding operation of the burner 2 and / or the changeover valve 12 (or the servomotor 13), the heat output of the burner.
  • the desired hot water temperature forms a predetermined setpoint, resulting, for example, comfort, ecology and economics requirements.
  • the heater 1 is exposed during its lifetime aging.
  • various parameters of the burner 2, the combustion chamber 3, the heat exchanger 4,6 and also the sensors 15,17 can change.
  • the third temperature sensor 19 is now provided.
  • the third temperature t 3 can be determined, which represents an actual value for the actually reached hot water temperature.
  • the controller 21 can therefore carry out a desired-actual comparison and evaluate any deviation that may occur and use it to correct its control signals, thereby adapting the mode of operation of the heating device 1 to compensate for aging phenomena.
  • the controller 21 will determine a correction factor for the current heat demand of the hot water circuit 7 based on the target-actual deviation.
  • the intervention in the control concept of the heating device 1 can be kept as small as possible.
  • the third temperature sensor 19 used here is not exposed to the same signs of aging as the temperature sensors 15 and 17 of the coupling fluid circuit 5. Accordingly, the third temperature t 3 determined by the third temperature sensor 19 can be used as the reference variable. Incidentally, the age-related measured value deviations of the temperature sensors 15,17,19 anyway very small and usually negligible.

Landscapes

  • 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)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Claims (8)

  1. Procédé pour déterminer les besoins actuels en chaleur d'un circuit d'eau chaude (7), en particulier d'une installation d'alimentation en eau chaude d'un bâtiment
    - un dispositif de chauffage (1) transmettant, en fonction des besoins actuels en chaleur du circuit d'eau chaude (7), de la chaleur au moyen d'un premier échangeur de chaleur (4) à un circuit de liquide d'accouplement (5), lequel présente une pompe (14) et est couplé par la transmission de chaleur au circuit d'eau chaude (7) au moyen d'un second échangeur de chaleur (6),
    - les besoins en chaleur du circuit d'eau chaude (7) étant déterminés à l'aide d'une première température (t1) dans le circuit de chauffage de couplage (5) sur une entrée (16) du second échangeur de chaleur (6) et d'une seconde température (t2) dans le circuit de liquide de couplage (5) sur une sortie (18) du second échangeur de chaleur (6),
    caractérisé en ce que la pompe (14) est exploitée de façon constante.
  2. Procédé selon la revendication 1, caractérisé en ce que
    - les besoins actuels en chaleur du circuit d'eau chaude (7) sont déterminés à partir d'une différence de la première température (t1) et de la seconde température (t2) et/ou à partir d'une valeur moyenne provenant de la première température (t1) et de la seconde température (t2) et/ou
    - en ce que les besoins actuels en chaleur du circuit d'eau chaude (7) sont déterminés à l'aide de la première température (t1) et de la seconde température (t2) par calcul et/ou à partir de champs caractéristiques.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que
    - le dispositif de chauffage (1) génère en fonction des besoins actuels en chaleur du circuit d'eau chaude (7) génère suffisamment de chaleur pour que, dans le circuit d'eau chaude (7), sur une sortie (20) du second échangeur de chaleur (6), il s'établit une troisième température (t3) qui doit présenter une valeur de consigne prédéfinie,
    - en ce que, par la mesure de la troisième température (t3) sa valeur actuelle est déterminée et est comparée avec la valeur prévue souhaitée,
    - en ce qu'un facteur de correction est déterminé pour les besoins actuels en chaleur en fonction d'un écart prévu-réel.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que
    - le circuit de liquide de couplage (5) est formé par un circuit partiel d'un circuit de chauffage (8), en particulier un chauffage central de bâtiment,
    - en ce que le circuit de chauffage (8) peut être chauffé par le dispositif de chauffage (1) au moyen du premier échangeur de chaleur (4),
    - en ce qu'une branche de couplage (9) du circuit de liquide de couplage (5) relie une branche aller (10) du circuit de chauffage (8) à travers le second échangeur de chaleur (6) à une branche retour (11) du circuit de chauffage (8).
  5. Dispositif de chauffage destiné à chauffer un circuit d'eau chaude (7), en particulier une installation d'alimentation en eau chaude d'un bâtiment, comprenant
    - un premier échangeur de chaleur (4), qui transmet la chaleur générée par le dispositif de chauffage (1) à un circuit de liquide de couplage (5),
    - un second échangeur de chaleur (6), qui couple le circuit de couplage de liquide (5) par transmission de chaleur au circuit d'eau chaude (7),
    - un premier capteur de température (15), qui mesure une première température (t1) régnant dans le circuit de liquide de couplage (5) sur une entrée (16) du second échangeur de chaleur (6),
    - un second capteur de température (17), qui mesure une seconde température (t2) régnant dans le circuit de liquide de couplage (5) sur une sortie (18) du second échangeur de chaleur (6),
    - une pompe (14) dans le circuit de liquide de couplage,
    - une commande (21) qui est reliée au premier capteur de température (15) et au second capteur de température (17), détermine les besoins actuels en chaleur du circuit d'eau chaude (7) à l'aide de la première température (t1) et de la seconde température (t2) et actionne le dispositif de chauffage (1) en fonction de ces besoins actuels en chaleur, caractérisé en ce que la pompe (14) est exploitée de façon constante.
  6. Dispositif de chauffage selon la revendication 5, caractérisé en ce que
    - la commande (21) détermine les besoins actuels en chaleur du circuit d'eau chaude (7) à partir d'une différence entre la première température (t1) et la seconde température (t2) et/ou à partir d'une valeur moyenne résultant de la première température (t1) et de la seconde température (t2),
    - en ce que la commande (21) détermine les besoins actuels en chaleur du circuit d'eau (7) à l'aide de la première température (t1) et de la seconde température (t2) par calcul et/ou à partir de champs caractéristiques.
  7. Dispositif de chauffage selon la revendication 5 ou 6, caractérisé en ce que
    - la commande (21) est reliée à un troisième capteur de température (19), qui mesure une troisième température (t3) régnant dans le circuit d'eau chaude (7) sur une sortie (20) du second échangeur de chaleur (6),
    - en ce que le dispositif de chauffage (1) génère en fonction des besoins actuels en chaleur du circuit d'eau chaude (7) tellement de chaleur que, dans le circuit d'eau chaude (7) à la sortie (20) du second échangeur de chaleur (6), il s'établit une température qui doit présenter une valeur de consigne prédéfinie ;
    - en ce que la commande (21) détermine la valeur réelle actuelle par la mesure de la troisième température (t3) et la compare avec la valeur prévue souhaitée,
    - en ce que la commande (21) détermine en fonction d'un écart prévu-réel un facteur de correction pour les besoins actuels en chaleur du circuit d'eau (7).
  8. Dispositif de chauffage selon l'une quelconque des revendications 6 à 7, caractérisé en ce que
    - le circuit de liquide de couplage (5) est formé par un circuit partiel d'un circuit de chauffage (8), en particulier un chauffage central de bâtiment,
    - en ce que le circuit de chauffage (8) peut être chauffé par le dispositif de chauffage (1), au moyen du premier échangeur de chaleur (4),
    - en ce qu'une branche de couplage (9) du circuit de liquide de couplage (5) relie un branchement aller (10) du circuit de chauffage (8) par le second échangeur de chaleur (6) à une branche retour (11) du circuit de chauffage (8).
EP03027441A 2003-02-18 2003-12-01 Procédé pour determiner une demande de chaleur et dispositif de chauffage pour mettre ledit procédé en oeuvre Expired - Lifetime EP1450111B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10306703 2003-02-18
DE10306703A DE10306703A1 (de) 2003-02-18 2003-02-18 Verfahren zur Bestimmung eines Wärmebedarfs und Heizeinrichtung zur Durchführung des Verfahrens

Publications (3)

Publication Number Publication Date
EP1450111A2 EP1450111A2 (fr) 2004-08-25
EP1450111A3 EP1450111A3 (fr) 2005-01-19
EP1450111B1 true EP1450111B1 (fr) 2007-05-09

Family

ID=32731032

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03027441A Expired - Lifetime EP1450111B1 (fr) 2003-02-18 2003-12-01 Procédé pour determiner une demande de chaleur et dispositif de chauffage pour mettre ledit procédé en oeuvre

Country Status (3)

Country Link
EP (1) EP1450111B1 (fr)
DE (2) DE10306703A1 (fr)
ES (1) ES2285028T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021200834A1 (de) 2021-01-29 2022-08-04 Viessmann Climate Solutions Se Heizungsanlage und verfahren zum betreiben einer heizungsanlage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19613744A1 (de) * 1995-04-01 1996-12-12 Vaillant Joh Gmbh & Co Steuer- oder Regelvorrichtung für einen Wasserheizer
AT403857B (de) * 1995-07-14 1998-06-25 Vaillant Gmbh Verfahren zur steuerung einer umlaufpumpe
DE19834742A1 (de) * 1998-08-01 2000-02-17 Veh Solar Und Energiesysteme C Verfahren und Anlagensystem zur Regelung der Wärmeübergabe an Wärmetauschern

Also Published As

Publication number Publication date
DE10306703A1 (de) 2004-08-26
DE50307234D1 (de) 2007-06-21
EP1450111A3 (fr) 2005-01-19
ES2285028T3 (es) 2007-11-16
EP1450111A2 (fr) 2004-08-25

Similar Documents

Publication Publication Date Title
DE102006045028B4 (de) Konstanttemperatur-Flüssigkeitszirkuliervorrichtung und Verfahren zur Steuerung der Temperatur in der Vorrichtung
EP1761728B1 (fr) Procede de reglage du coefficient d'air dans un appareil de combustion et appareil de combustion
DE102009004319A1 (de) Verfahren, Computerprogramm und Regelgerät für einen temperaturbasierten hydraulischen Abgleich
EP3722680B1 (fr) Procédé de réalisation d'une comparaison hydraulique d'un système de chauffage pour un bâtiment ainsi que système de chauffage conçu pour celui-ci
WO2018162679A1 (fr) Procédé pour faire fonctionner une installation de chauffage
EP2653789A2 (fr) Procédé et système destinés à tempérer des composants
WO2014135538A1 (fr) Procédé et système de régulation de la température d'éléments structuraux
DE102021121888A1 (de) Verfahren zum Betrieb einer Brennwert-Heizanlage, Brennwert-Heizanlage sowie Computerprogramm
EP1310746B1 (fr) Dispositif et procédé de regulation d'un chauffe-eau
EP3800403B1 (fr) Procédé de fonctionnement d'un dispositif de chauffage, dispositif de chauffage
DE19530000A1 (de) Warmwasserbereitungsanlage
DE10329565B4 (de) Verfahren und Einrichtung zur Einstellung der aus dem Fernwärmenetz bezogenen Wärmemenge auf den wirklichen Bedarfsfall einer Hausanschlußstation
DE10259279B3 (de) Versorgungssystem für Heiz-oder Kühlwasser sowie Verfahren zum Betreiben desselben
DE102005040792B3 (de) Selbstlernender Temperaturregler
DE3838005C2 (fr)
DE2202095B1 (de) Umlaufwasserheizer
EP0642069B1 (fr) Dispositif de régulation
EP3553408A1 (fr) Procédé de fonctionnement d'un appareil chauffant hybride et appareil chauffant hybride
DE10306703A1 (de) Verfahren zur Bestimmung eines Wärmebedarfs und Heizeinrichtung zur Durchführung des Verfahrens
DE10144406C1 (de) Heizgerät, insbesondere Zusatzheizgerät für mobile Anwendungen
EP0711960A1 (fr) Procédé et dispositif pour chauffer de l'eau sanitaire
DE10002860C2 (de) Wärmezähler für Wärmeträgermedien
EP0898119A2 (fr) Dispositif et procédé de chauffage d'eau sanitaire
DE2529858A1 (de) Verfahren und vorrichtung zur steuerung einer waermeuebertragungsanlage, insbesondere zentralheizungsanlage
DE19613744A1 (de) Steuer- oder Regelvorrichtung für einen Wasserheizer

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

17P Request for examination filed

Effective date: 20050719

AKX Designation fees paid

Designated state(s): DE ES FR GB NL

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB NL

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 50307234

Country of ref document: DE

Date of ref document: 20070621

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20070626

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2285028

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20080212

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20131217

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20131216

Year of fee payment: 11

Ref country code: ES

Payment date: 20131216

Year of fee payment: 11

Ref country code: FR

Payment date: 20131213

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20140221

Year of fee payment: 11

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50307234

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20150701

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20150701

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20141201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150701

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141231

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20160127

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141202