EP0884532B1 - Verfahren und Vorrichtung zur Regelung der Temperatur von einem in einem Brenner aufgeheizten Fluidum - Google Patents

Verfahren und Vorrichtung zur Regelung der Temperatur von einem in einem Brenner aufgeheizten Fluidum Download PDF

Info

Publication number
EP0884532B1
EP0884532B1 EP98400940A EP98400940A EP0884532B1 EP 0884532 B1 EP0884532 B1 EP 0884532B1 EP 98400940 A EP98400940 A EP 98400940A EP 98400940 A EP98400940 A EP 98400940A EP 0884532 B1 EP0884532 B1 EP 0884532B1
Authority
EP
European Patent Office
Prior art keywords
power
burner
temperature
rate
pmin
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
EP98400940A
Other languages
English (en)
French (fr)
Other versions
EP0884532A1 (de
Inventor
Philippe Pontiggia
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.)
Engie SA
Original Assignee
Gaz de France SA
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 Gaz de France SA filed Critical Gaz de France SA
Publication of EP0884532A1 publication Critical patent/EP0884532A1/de
Application granted granted Critical
Publication of EP0884532B1 publication Critical patent/EP0884532B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/08—Regulating fuel supply conjointly with another medium, e.g. boiler water
    • F23N1/082—Regulating fuel supply conjointly with another medium, e.g. boiler water using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/08—Measuring temperature
    • F23N2225/18—Measuring temperature feedwater temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/08—Measuring temperature
    • F23N2225/19—Measuring temperature outlet temperature water heat-exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/10—Sequential burner running
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2241/00—Applications
    • F23N2241/04—Heating water

Definitions

  • the present invention relates to a method and its associated device for regulation of the temperature of a fluid heated by a burner.
  • the present invention relates to a method and its device associated to regulate the temperature of the water heated in an enclosure (or called "exchanger") of a water heater or a boiler by a mixture burner gas which can be at rest with zero power P, or which can operate at a power P between a non-zero minimum power Pmin and a power maximum Pmax greater than said minimum power.
  • EP-A-0 222 972 proposes a method of regulation of the temperature leaving an enclosure of a fluid which has entered it at an inlet temperature less than or equal to said outlet temperature, so that this outlet temperature is adapted to it via a burner suitable for in a state of rest at zero power or in a state on in which its power is between a non-zero minimum power and a power maximum greater than said minimum power, said fluid leaving the enclosure with a non-zero draw-off rate as a function of which the power of the burner is varied, the burner operating either in continuous mode or in chopped mode depending on said flow rate.
  • the invention proposes that the drawing flow be determined by calculation as a function of a reference temperature, such as the inlet temperature, at least one measured temperature, such as the output, and operating data specific to the burner, such as gas flow sent to this one.
  • the process uses internal data calculated (operation of the "flow observer” type) or obtained directly using a sensor, to determine the data (the drawing flow in this case) which will serve as the basis for the passage of the operation of the burner either in continuous mode or in chopped mode, the burner power then being adapted as a function of this draw-off rate.
  • This formula makes it possible to constantly adapt to the conditions of drawing, because the determination of this flow is said to be “dynamic". Indeed, it takes into not only counts the temperature variation of the fluid between the inlet and the outlet of the enclosure, but also the rate of change of the outlet temperature of the enclosure, that is to say the oscillations of this outlet temperature. In this way, the calculation allows a flow closer to reality, which obviously allows calculate as accurately as possible the power required from the burner corresponding to this flow of drawing. This solution also eliminates costly measuring devices because it uses knowledge of the behavior of the device and the burner in particular to deduce the value of the drawing flow.
  • the burner will preferably change from an operating mode to the other by comparison between the drawing flow and a threshold flow to which the minimum burner power.
  • the burner is operated in chopped mode with varying burner output alternately between said zero power and a power greater than or equal to the minimum power of it, so that over this time, we get a resulting average power lower than the minimum power of the burner and substantially equal to the power requested.
  • the burner will be operated in continuous mode, with a power which will preferably be greater than or equal to the minimum power and which will preferably vary gradually and continuously in time as a function of said drawing flow.
  • This mode of operation called “continuous mode”
  • the burner output can be regulated in the time as a function of the variation in the flow rate, which in this case will always remain greater than or equal to the threshold flow.
  • the power of the burner will be always adapted to the flow of this fluid, whether it is low and below the threshold flow (switch to chopped mode) or high and higher than the threshold flow (switch to mode continued).
  • This process can therefore be used in all types of configuration possible in relation in particular with a water heater or a boiler.
  • the invention also relates to a device for regulating the temperature of out of an enclosure of a fluid which entered it at an inlet temperature less than or equal to said outlet temperature so that this outlet temperature is adapted to it by means of a burner capable of being in a state of rest at zero power or in an on state in which its power is between a non-zero minimum power and a maximum power greater than said power minimum, said fluid leaving the enclosure with a drawing flow determined in function of which the burner output varies, characterized in that it includes a burner operating device controlled by a regulating means allowing to regulate the power P of the burner as a function of the draw-off flow, either in chopped with almost instantaneous variation in power over time, either in continuous with gradual and continuous variation in power over time.
  • the regulating means preferably also include a computer allowing, on the one hand to determine by calculation the value of the drawing flow, and on the other hand to compare this flow rate Q calculated with a threshold flow rate Qs fixed so that the burner passes from chopped operating mode to continuous operating mode by comparison between the value of the calculated flow rate Q and the threshold flow rate Qs.
  • the computer will preferably be initialized on ignition with a positive or zero flow and saturated at a maximum flow value, for example fixed at construction at around 20 liters / minute.
  • a maximum flow value for example fixed at construction at around 20 liters / minute.
  • the fluid considered will be water, preferably potable, usable in particular for sanitary use (washing, rinsing).
  • Figure 1 illustrates the problem posed which the present invention.
  • a curve C having for abscissa the flow of Q drawing of the fluid (typically domestic hot water) in liters / minute, and for ordered the outlet temperature Ts of said fluid from the enclosure of a water heater, typically the temperature of the water at the outlet of a tap (we disregard the temperature difference due to the passage of water in the various pipes connecting the place of the enclosure where the water is heated and the outlet of the tap where it comes out to be used).
  • This first order mathematical equation determined using a computer integrated into the regulation means, has the advantage of taking into account the variation of the outlet temperature over time, in addition to the variation of the outlet temperature relative to the inlet temperature, which allows to refine the measure and have an optimized device behavior model in addition to get rid of the use of expensive and fragile mechanical parts of the type flowmeter replaced by simple temperature sensors and a computer.
  • the calculator of the means of regulation which could be, without being exhaustive, an electronic circuit of the type microprocessor, DSP or microcontroller, will be initialized on ignition with a value positive or zero flow, and will be saturated at a compatible maximum flow value with the capacities of the device, ie approximately 20 liters / minute.
  • the device of FIG. 2 can operate in two different modes depending on this bit rate, called “mode chopped “and” continuous mode ", as shown in the flowchart in the figure 3 and in FIGS. 4 to 6.
  • the transition between the two modes can be carried out using of a known type hysteresis bistable relay integrated into regulation means 10.
  • threshold flow For a certain flow called “threshold flow” and noted Qs, corresponds a power called “minimum power” and noted Pmin.
  • the flow Q is greater than or equal to the threshold flow Qs (determined by measures and fixed to the construction), i.e. if the requested power Pdem, deducted of the domestic hot water drawing rate Q, is greater than or equal to the power minimum Pmin of burner 5, then it works normally, i.e. in "continuous mode" over time and progressive ( Figure 4) to supply water to a temperature Ts substantially equal to the set temperature Tcons.
  • this operates in continuous mode with slaving and varies the burner power P gradually and continuously over time (preferably without bearing) between Pmin and Pmax according to the flow rate of drawing Q.
  • the figure 4 illustrates well this mode of operation.
  • a curve D representing the variation of the power P as a function of the drawing flow Q is shown. This shows that as long as the drawing flow Q is substantially equal to the threshold flow Qs, the power P is approximately equal to the minimum power Pmin of the burner. Once the threshold flow Qs exceeded, the power P varies continuously and gradually over time along curve D.
  • the other mode of operation is the so-called "chopped" mode.
  • This mode is triggered by the control means 10 when the flow Q is lower than the threshold flow Qs, that is to say when the power Pdem is less than the minimum power Pmin of the burner.
  • the regulating means 10 comprising a known type of chopper, which controls the operating member 9 so that it alternately opens and closes the supply of gas mixture from burner 5, and therefore let it pass alternately from one zero power at a power P greater than or equal to the minimum power Pmin of the burner 5, and preferably equal to Pmin.
  • This operation thus allows, over the entire duration during which the drawing flow Q is less than the threshold flow Qs, to obtain an average power Pmoy (power calculated by summing the integrals double the hatched areas of the curve in Figures 5 or 6) less than the minimum power Pmin of the burner and substantially equal to the required power Pdem. This therefore generates a lower heating for any drawing flow Q lower than the threshold flow Qs.
  • Pmoy power calculated by summing the integrals double the hatched areas of the curve in Figures 5 or 6
  • FIG. 5 represents the variation of the power P of the burner as a function of time, for a flow rate Q (variable or not over time) always lower than the threshold flow Qs.
  • the power P varies so stepped or chopped between zero power and power greater than or equal to the minimum power Pmin of the burner (dotted lines).
  • the value of this power P greater than or equal to the minimum power Pmin can be variable or not during all the time during which the flow Q does not vary (while remaining below the flow threshold).
  • this power P greater than or equal to the minimum power Pmin is identical throughout the period during which the drawing flow is constant, and increases or decreases appreciably with the variation of the drawing flow Q.
  • another solution is possible.
  • the resulting average power Pmoy calculated using the sum of the double integrals of the hatched areas of figure 5 is always less than the minimum power Pmin and is substantially equal to the Pdem power requested from the burner for the draw-off rate Q considered.
  • Figure 6 is a variant of Figure 5 showing the variation of the power P as a function of time, always for a drawing flow Q (variable or constant) lower than the threshold flow Qs.
  • the temperature of the pulsed fluid varies too much around the set temperature because this creates a certain discomfort already encountered in the devices of the prior art (significant oscillation of the water temperature due to poor regulation).
  • Gold if the burner power is varied between zero power and a power greater than or equal to the minimum power too high, there is a risk of heating too strong the fluid during certain durations. It is therefore necessary to reduce the power difference P between zero power and power greater than or equal to the minimum power of so as to reduce the differences in fluid outlet temperature.
  • the regulating means 10 manages, as a function of the oscillations of the outlet temperature compared to the set temperature, the frequency of transition from zero power to power greater than or equal to the minimum power as well as the durations during which the burner remains at each of these powers, using an integrated chopper. This management allows, as this is specified above, to adapt to variations in the flow rate of draw-off Q in the time.
  • the set temperature Tcons is almost reached within a few degrees (3 ° C maximum) over the entire period of the oscillations (roughly equivalent to the duration of the drawing), even for very low flow rates drawing Q.
  • the temperature oscillations remain moderate (5 to 7 ° C) and are strongly attenuated by the pipeline, given their high frequency, which significantly improves the comfort of use, while avoiding having an expensive device such as a mixer, the cost of components (chopper, sensors, bistable relay or circuit PID) being very small because these are very common.
  • the power variation between zero power and a power greater than or equal to the minimum power can also be done by passage through several levels (therefore without “jump” but rather in an evolutionary way continuous) for powers greater than the minimum power when the average power remains below the minimum power.
  • the device may in particular comprise a circuit primary in which circulates a first fluid heated by the burner, and a circuit secondary in which a second fluid to be heated circulates, a heat exchanger allowing the second fluid to be heated using the first.
  • the fluid drawn (the second fluid) is heated indirectly by the burner, but the process remains identical, i.e. the power of the burner varies according to the flow rate of the second fluid, and in particular, the regulator will operate the burner in chopped or in continuous mode depending on the value of the flow compared to a flow threshold to which the minimum power of the burner corresponds.
  • the burner could work with another type of mixture fuel / oxidizer, such as an oil / air mixture.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Water Treatment By Sorption (AREA)
  • Commercial Cooking Devices (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Claims (9)

  1. Verfahren zur Regelung der Austrittstemperatur (Ts) eines Fluids aus einem abgeschlossenen Raum (3), das dort hinein bei einer Eintrittstemperatur (Tef), welche niedriger oder gleich der Austrittstemperatur (Ts) ist, eingegeben wird, damit diese Austrittstemperatur (Ts) dort mittels eines Brenners (5) adaptiert wird, der sich in einem Ruhezustand mit Nulleistung (P) oder in einem Zündzustand befinden kann, in dem seine Leistung (P) zwischen einer Minimalleistung (Pmin) nicht null und einer Maximalleistung (Pmax) höher als die Minimalleistung (Pmin) liegt, wobei das Fluid den abgeschlossenen Raum (3) mit einem Schöpfdurchsatz (Q) von nicht null verläßt, abhängig von welchem man die Leistung (P) des Brenners variieren läßt, und der Brenner entweder fortlaufend oder unterbrochen abhängig von dem Schöpfdurchsatz (Q) arbeitet, dadurch gekennzeichnet, daß der Schöpfdurchsatz (Q) durch Berechnung abhängig von einer Bezugstemperatur, wie zum Beispiel der Eintrittstemperatur (Tef), mindestens einer gemessenen Temperatur, wie zum Beispiel der Austrittstemperatur (Ts), und einer für den Brenner charakteristischen gegebenen Betriebsgröße, zum Beispiel dem diesem zugeführten Gasdurchsatz (Qgaz), bestimmt wird.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Schöpfdurchsatz dynamisch mittels der folgenden Relation bestimmt wird: Q = [(n * Pci * Qgaz) - ( Méqu * Cp * (dTs/dt))] / [Cp *(Ts-Tef)]
    mit n, der Wirkungsgrad des Brenners,
    Pci, der spezifische Heizwert des Gases in W.h/m3,
    Qgaz ist der dem Brenner zugeführte Gasdurchsatz in m3/h,
    Mèqu, der Koeffizient, welcher den Wärmeleitwiderstand des abgeschlossenen Raums darstellt,
    Cp, die Wärmekapazität des Fluids in J/kg/°K (4180 für Wasser),
    dTs/dt, die Temperaturschwankung über die Zeit (Ableitung) des Fluids am Ausgang des eingeschlossenen Raumes, und
    Tef ist die Eintrittstemperatur des Fluids in dem abgeschlossenen Raum.
  3. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Brenner (5) von einer Funktionsart zur anderen im Vergleich zwischen dem Schöpfdurchsatz (Q) und einem Schwellendurchsatz (Qs) übergeht, welchem im wesentlichen die Minimalleistung (Pmin) des Brenners entspricht.
  4. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß man während der gesamten Dauer, im Laufe welcher der Schöpfdurchsatz (Q), welchem eine bestimmte für den Brenner (5) erforderte Leistung (Pdem) entspricht, geringer ist als ein Schwellendurchsatz (Qs), welchem im wesentlichen die Minimalleistung (Pmin) entspricht, den Brenner (5) unterbrochen mit einer Leistung (P) arbeiten läßt, die alternativ zwischen der Nulleistung und einer Leistung größer oder gleich der Minimalleistung (Pmin) desselben variiert, derart, daß man über diese Zeitdauer eine resultierende mittlere Leistung (Pmoy) erhält, die geringer als die Minimalleistung (Pmin) des Brenners (5) und im wesentlichen gleich der erforderten Leistung (Pdem) ist.
  5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß man während dieser Zeitdauer die Leistungsschwankung (P) des Brenners (5) zwischen seiner Nulleistung und seiner Minimalleistung (Pmin) begrenzt.
  6. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß man, solange der Schöpfdurchsatz (Q), welchem eine bestimmte erforderte Leistung (Pdem) für den Brenner (5) entspricht, höher oder gleich einem Schwellendurchsatz (Qs) ist, welchem im wesentlichen die Minimalleistung (Pmin) des Brenners entspricht, diesen letzteren fortlaufend mit einer Leistung (P) arbeiten läßt, die größer oder gleich der Minimalleistung (Pmin) ist und die fortlaufend und progressiv über die Zeit, abhängig von dem Schöpfdurchsatz (Q), variiert.
  7. Regelungsvorrichtung (1) der Austrittstemperatur (Ts) eines Fluids aus einem abgeschlossenen Raum (3), das dort hinein bei einer Eintrittstemperatur (Tef) eingeführt wird, die niedriger oder gleich der Austrittstemperatur (Ts) ist, damit diese Austrittstemperatur (Ts) dort mittels eines Brenners (5) adaptiert wird, der geeignet ist, sich in einem Ruhezustand mit Nulleistung (P) oder in einem Zündzustand zu befinden, in welchem seine Leistung (P) zwischen einer Minimalleistung (Pmin) nicht null und einer Maximalleistung (Pmax) liegt, die höher als die Minimalleistung (Pmin) ist, wobei das Fluid den abgeschlossenen Raum (3) mit einem Schöpfdurchsatz (Q) nicht null verläßt, abhängig von welchem man die Brennerleistung variieren läßt, und die Vorrichtung hierfür eine Betätigungseinrichtung (9) des Brenners (5) aufweist, welche durch ein Regelungsmittel (10) gesteuert wird, um die Leistung (P) des Brenners (5) abhängig von dem Schöpfdurchsatz (Q) entweder unterbrochen mit plötzlich eintretender Veränderung der Leistung (P) über die Zeit oder fortlaufend mit zunehmender und fortlaufender Veränderung der Leistung (P) über die Zeit zu adaptieren, dadurch gekennzeichnet, daß sie Mittel aufweist zum Berechnen des Durchsatzes (Q) abhängig von einer Bezugstemperatur, wie zum Beispiel der Eintrittstemperatur (Tef), mindestens einer gemessenen Temperatur, wie zum Beispiel der Austrittstemperatur (Ts), und einer für den Brenner charakteristischen Betriebsgröße, wie zum Beispiel dem diesem zugeführten Gasdurchsatz.
  8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Mittel außerdem einen Rechner aufweisen, welcher es erlaubt, den errechneten Schöpfdurchsatz (Q) mit einem festgesetzten Schwellendurchsatz (Qs) zu vergleichen, damit das Regelungsorgan (10) die Leistung (P) des Brenners (5), abhängig von dem berechneten Wert des Schöpfdurchsatzes (Q) in Bezug zu dem Schwellendurchsatz (Qs), adaptiert.
  9. Vorrichtung (1) nach Anspruch 8,dadurch gekennzeichnet, daß der Rechner für die Zündung mittels eines Durchsatzwertes (Q) initialisiert wird, der größer oder gleich null ist, und daß er bei einem Maximalwert des Schöpfdurchsatzes (Q), zum Beispiel ungefähr 20 Liter/Minute, gesättigt wird.
EP98400940A 1997-06-11 1998-04-16 Verfahren und Vorrichtung zur Regelung der Temperatur von einem in einem Brenner aufgeheizten Fluidum Expired - Lifetime EP0884532B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9707230 1997-06-11
FR9707230A FR2764674B1 (fr) 1997-06-11 1997-06-11 Procede et dispositif associe de regulation de la temperature d'un fluide chauffe par un bruleur

Publications (2)

Publication Number Publication Date
EP0884532A1 EP0884532A1 (de) 1998-12-16
EP0884532B1 true EP0884532B1 (de) 2001-11-14

Family

ID=9507850

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98400940A Expired - Lifetime EP0884532B1 (de) 1997-06-11 1998-04-16 Verfahren und Vorrichtung zur Regelung der Temperatur von einem in einem Brenner aufgeheizten Fluidum

Country Status (10)

Country Link
EP (1) EP0884532B1 (de)
AT (1) ATE208881T1 (de)
CZ (1) CZ293688B6 (de)
DE (1) DE69802468T2 (de)
DK (1) DK0884532T3 (de)
ES (1) ES2167849T3 (de)
FR (1) FR2764674B1 (de)
HU (1) HU221671B1 (de)
PT (1) PT884532E (de)
SK (1) SK77898A3 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2387843A1 (en) * 1999-10-18 2001-04-26 Pierre Repper Electronic gas cooktop control with simmer system and method thereof
US20080318173A1 (en) * 2006-01-02 2008-12-25 Peter Schaller Heating Burner

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR910000677B1 (ko) * 1985-07-15 1991-01-31 도오도오 기기 가부시기가이샤 가스 순간식 급탕기(給湯機)
JPH03282116A (ja) * 1990-03-30 1991-12-12 Toto Ltd 給湯機における燃焼制御方法
JP3130413B2 (ja) * 1993-09-01 2001-01-31 東京瓦斯株式会社 給湯器の劣化検知装置
JPH07145930A (ja) * 1993-11-22 1995-06-06 Harman Co Ltd 給湯装置
FR2741939B1 (fr) * 1995-12-01 1998-02-20 Gaz De France Installation de production d'eau chaude sanitaire par chaudiere a gaz et procede de regulation de la temperature d'eau chaude sanitaire dans une telle installation

Also Published As

Publication number Publication date
FR2764674A1 (fr) 1998-12-18
HU221671B1 (hu) 2002-12-28
CZ293688B6 (cs) 2004-07-14
HU9801314D0 (en) 1998-08-28
SK77898A3 (en) 1999-04-13
DE69802468T2 (de) 2002-05-02
ATE208881T1 (de) 2001-11-15
PT884532E (pt) 2002-04-29
DK0884532T3 (da) 2002-01-21
EP0884532A1 (de) 1998-12-16
ES2167849T3 (es) 2002-05-16
DE69802468D1 (de) 2001-12-20
FR2764674B1 (fr) 1999-07-16
HUP9801314A3 (en) 2002-06-28
HUP9801314A2 (hu) 2000-12-28
CZ181398A3 (cs) 1999-02-17

Similar Documents

Publication Publication Date Title
EP1060348B1 (de) Vorrichtung zur regelung des luft/gasverhältnisses eines brenners mit einer druckunterschiedmessvorrichtung
EP0073717B1 (de) Dichter Gasheizkessel mit erzwungenem Zug und Mikroprozessorenregelung
FR2567992A1 (fr) Dispositif pour regler les periodes de marche et d'arret d'un bruleur d'une installation de chauffage par eau chaude
FR2641847A1 (fr) Dispositif pour surveiller les fuites dans un systeme de conduites a fluide
EP3404334B1 (de) Energiespeicherverfahren und -anlage, die einen wasserboiler umfasst
EP2247897B1 (de) Anlage zur produktion von haushalts-warmwasser
CH615267A5 (de)
WO2013004972A1 (fr) Systeme d'echange thermique et procede de regulation d'une puissance thermique developpee par un tel systeme d'echange thermique
EP0884532B1 (de) Verfahren und Vorrichtung zur Regelung der Temperatur von einem in einem Brenner aufgeheizten Fluidum
FR2983944A1 (fr) Dispositif d'economie d'eau
FR2931226A1 (fr) Procede et systeme de controle d'un circuit hydraulique a plusieurs boucles d'echange de chaleur
FR2813117A1 (fr) Procede et installation de chauffage a partir de l'energie solaire
EP0781965B1 (de) Gasbeheizte Brauchwasserheizanlage und Verfahren zur Regelung der Brauchwassertemperatur in solcher Anlage
EP1635117A1 (de) Verfahren zur Regelung des Luft-Brennstoffverhältnisses eines Brenners und Brenner zur Durchführung dieses Verfahrens
EP0316496A1 (de) Verfahren zur Regulierung einer Zentralheizungsanlage
EP2770263A2 (de) Verfahren und Anlage zum Erwärmen von Wasser
EP0916909A1 (de) Sparvorrichtung für Wasserheizer
EP0539309B1 (de) Verfahren und Einrichtung zur Lastregelung eines Kessels mit mechanischer Feuerungsroste
FR3063800A3 (fr) Groupe satellite hydraulique perfectionne
EP2604918B1 (de) Verfahren zur Regelung der Zusammensetzung eines Luft-Brenngas-Gemisches, das dem Brenner eines Gasheizkessels zugeführt wird, sowie Vorrichtung, welche die Durchführung dieses Verfahrens ermöglicht
WO2009125090A1 (fr) Système et procédé de réchauffage du fluide hydraulique d'un aéronef
FR2564571A1 (fr) Reglage continu du rapport air-combustible d'une source calorifique chauffee par un combustible
EP1636525A1 (de) Fernbedienbares, mit flüssigem brennstoff betriebenes heizgerät
FR2621684A2 (fr) Procede et dispositif de preparation instantanee d'eau chaude sanitaire
FR2507289A1 (fr) Procede et dispositifs pour reguler simultanement l'allure de marche d'un bruleur et d'un gazogene alimentant ce bruleur

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: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19990527

AKX Designation fees paid

Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 20000614

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

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

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20011114

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20011114

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20011114

REF Corresponds to:

Ref document number: 208881

Country of ref document: AT

Date of ref document: 20011115

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: LUCHS & PARTNER PATENTANWAELTE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: FRENCH

REF Corresponds to:

Ref document number: 69802468

Country of ref document: DE

Date of ref document: 20011220

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

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

Effective date: 20020117

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

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020214

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

Ref country code: MC

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

Effective date: 20020416

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20020107

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

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020430

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2167849

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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

Ref country code: AT

Payment date: 20050321

Year of fee payment: 8

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

Ref country code: DK

Payment date: 20050323

Year of fee payment: 8

Ref country code: CH

Payment date: 20050323

Year of fee payment: 8

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

Ref country code: GB

Payment date: 20050325

Year of fee payment: 8

Ref country code: NL

Payment date: 20050325

Year of fee payment: 8

Ref country code: LU

Payment date: 20050325

Year of fee payment: 8

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

Ref country code: PT

Payment date: 20050328

Year of fee payment: 8

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

Ref country code: BE

Payment date: 20050330

Year of fee payment: 8

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

Ref country code: DE

Payment date: 20050401

Year of fee payment: 8

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

Ref country code: ES

Payment date: 20050408

Year of fee payment: 8

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

Ref country code: GB

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

Effective date: 20060416

Ref country code: AT

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

Effective date: 20060416

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: 20060417

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

Ref country code: LU

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

Effective date: 20060430

Ref country code: LI

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

Effective date: 20060430

Ref country code: CH

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

Effective date: 20060430

Ref country code: BE

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

Effective date: 20060430

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

Ref country code: IT

Payment date: 20060430

Year of fee payment: 9

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

Ref country code: DK

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

Effective date: 20060501

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

Ref country code: PT

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

Effective date: 20061016

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: 20061101

Ref country code: DE

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

Effective date: 20061101

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 20060416

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

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

Effective date: 20061016

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20061101

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20060417

BERE Be: lapsed

Owner name: *GAZ DE FRANCE (SERVICE NATIONAL)

Effective date: 20060430

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

Ref country code: IT

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

Effective date: 20070416

REG Reference to a national code

Ref country code: FR

Ref legal event code: CJ

Ref country code: FR

Ref legal event code: CD

Ref country code: FR

Ref legal event code: CA

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

Ref country code: FR

Payment date: 20110518

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20121228

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: 20120430