EP3163169B1 - Appareil de chauffage et procédé de fonctionnement d'un appareil de chauffage - Google Patents

Appareil de chauffage et procédé de fonctionnement d'un appareil de chauffage Download PDF

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Publication number
EP3163169B1
EP3163169B1 EP16192313.1A EP16192313A EP3163169B1 EP 3163169 B1 EP3163169 B1 EP 3163169B1 EP 16192313 A EP16192313 A EP 16192313A EP 3163169 B1 EP3163169 B1 EP 3163169B1
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EP
European Patent Office
Prior art keywords
control unit
heater
unit
fuel
ignition
Prior art date
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Application number
EP16192313.1A
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German (de)
English (en)
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EP3163169A1 (fr
Inventor
Remko Voordendag
Sipco Max Hijenga
Gordy Koellmann
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Robert Bosch GmbH
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Robert Bosch GmbH
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Publication of EP3163169A1 publication Critical patent/EP3163169A1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/12—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
    • F23N5/123—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2223/00—Signal processing; Details thereof
    • F23N2223/04—Memory
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/02—Starting or ignition cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00—Ventilators
    • F23N2233/06—Ventilators at the air intake
    • F23N2233/08—Ventilators at the air intake with variable speed

Definitions

  • Gas and / or oil burners are known from the prior art, which comprise a heating unit and a control unit, which is provided to take into account different ignition characteristics, such as an air ratio, a fuel quantity and / or an air quantity during an ignition operation.
  • document WO2014 / 140687 discloses the preamble of claim 1.
  • a heater device in particular a gas and / or oil burner device, with a control unit (10a, 10b) according to claim 1 is proposed.
  • a "heater device” is to be understood as meaning, in particular, at least one part, in particular a subassembly, of a heating device, in particular of a gas and / or oil burner.
  • the heater device may also include the entire heater, in particular the entire gas and / or oil burner.
  • the heater device can have at least one heating unit, in particular the already mentioned heating unit, at least one supply unit, at least one metering unit for combustion air, at least one metering device for fuel and / or at least one sensor.
  • a "heating unit” should be understood to mean, in particular, a unit which is provided, in particular, to burn the mixture, in particular from the combustion air and the fuel, in at least one operating state, and in particular to generate at least one heating flame.
  • a "supply unit” should in particular be understood to mean a unit which is provided to supply at least one fluid and / or at least one fluid flow, in particular a combustion air flow, a fuel flow and / or a mixture flow, in particular from the combustion air and the fuel, to the heating unit .
  • a "dosing device” is to be understood as meaning in particular one, in particular electrical and / or electronic, unit, in particular actuator unit, advantageous actuating unit, which is provided in particular for the fluid and / or the fluid flow, in particular the combustion air flow, the fuel flow and / or or to influence the mixture flow, in particular from the combustion air and the fuel, and advantageously adjust, regulate and / or promote.
  • the doser for combustion air and / or the fuel metering device is provided to modulate a heating power of the heater device.
  • the dosing device for combustion air can advantageously be designed as a fan, in particular having a variable speed, and / or preferably as a fan, in particular a variable-speed fan.
  • the fuel metering device can advantageously be designed as a fuel pump, in particular variable in flow rate, and / or preferably as a fuel valve, in particular variable in flow rate.
  • a “sensor” is to be understood in particular as a unit which is provided to detect at least one measured variable correlated with the combustion of the mixture, in particular from the combustion air and the fuel, in particular indirectly and / or advantageously directly, and / or in particular the control unit to provide.
  • the sensor can be embodied as any, in particular electrical, optical and / or chemical, detection and / or measuring unit, such as a temperature sensor, thermoelectric sensor, lambda probe, gas sensor, in particular carbon monoxide sensor and / or carbon dioxide sensor, radiation sensor, in particular infrared radiation sensor and / or ultraviolet radiation sensor, and / or preferably as an ionization sensor, in particular ionization electrode and, advantageously, flame ionization electrode.
  • control unit is also to be understood, in particular, as meaning an electrical and / or electronic unit having at least one control electronics.
  • a "control electronics” is understood to mean a unit having a computing unit and / or a memory unit and, advantageously, an operating, control and / or regulating program stored in the memory unit, which is intended in particular to be executed by the computing unit become.
  • the control unit is provided to provide at least one control signal and / or control signal for adjusting and / or adjusting at least one metering device, in particular the metering device for combustion air and / or the metering device for fuel.
  • control unit is preferably provided to provide the heating power, in particular a requested heating power and / or a desired heating power, by setting and / or adjusting at least one of the dosing devices.
  • control unit to do so provided, in at least one operating state, in particular a start operating state and / or a control operating state, advantageously immediately after the ignition of the heating unit to adjust the heating power of the heating unit in the manner of a control, in particular by controlling at least one metering device, in particular of the metering device for combustion air and / or of the meter for fuel.
  • control unit is preferably provided in at least one further operating state, in particular a continuous operating state and / or a control operating state, advantageously immediately after the operating state, in particular the start operating state and / or the control operating state, the heating power of the heating unit in the manner of a scheme and in particular under Use of the measured variable of the sensor, which in particular corresponds to a controlled variable to set, in particular regulate, in particular by controlling at least one metering device, in particular the metering device for combustion air and / or the metering device for fuel.
  • control unit is advantageously provided to determine the operating parameter and preferably to store indirectly and / or directly in the memory unit.
  • an "ignition operation” should be understood to mean, in particular, an operation and / or a process, in particular an ignition process, between a start of operation and an ignition of the heating unit.
  • the ignition operation advantageously starts with the start of operation and ends with the ignition of the heating unit.
  • a “heating operation” is intended to mean an operation and / or operation, in particular a heating operation, in particular different from the ignition operation, in which the heating unit is provided, in particular advantageously, at least substantially for the mixture, in particular from the combustion air and the fuel evenly, to burn and which in particular takes place after the ignition operation.
  • the heating operation takes place briefly after the ignition operation and / or includes time, preferably directly, to the ignition operation.
  • the heating operation ends with a cessation of the heating flame of the heating unit.
  • the heating operation is different from an installation operation, such as for setting up and / or calibrating the heating unit.
  • the term "short-term” should be understood to mean, in particular, a maximum duration of 10 s, advantageously of not more than 5 s, preferably of not more than 1 s and particularly preferably of not more than 0.5 s.
  • an "operating parameter” is to be understood in particular to mean a parameter which, in particular with an operation of the heater, advantageously the heating operation, is correlated.
  • the control unit can close at least on the basis of the operating parameter in a way, on the presence and / or quality of the combustion and / or the ignition operation and / or determine the type, the presence and / or the quality of the combustion and / or the ignition operation.
  • the operating characteristic corresponds to a fuel-combustion-air ratio parameter.
  • An appropriate configuration of the heater device can in particular increase operational safety, in particular during an ignition operation.
  • an advantageously, in particular autonomously operating, heater can be provided, which is advantageous to be able to automatically, and in particular without intervention by a user, changing conditions, such as due to aging of a heating unit and / or changing environmental conditions to recognize and adjust operation accordingly, which in particular minimizes costs, increases a functional life, improves robustness and / or maintenance can be facilitated.
  • an efficiency, in particular a heating efficiency, a time efficiency, an environmental efficiency and / or a cost efficiency can be increased.
  • an ignition time can be optimized, whereby a waste of fuel can be minimized and / or a safety for a user can be maximized.
  • an "at least substantially regulated and / or stabilized continuous operating state” is to be understood in particular as an operating state, in particular control operating state, in particular of the heating operation, in which the control unit is provided to adjust the heating power of the heating unit in the manner of a control, and preferably a stable operation of the heater, in particular the heating unit, takes place.
  • the heating power of the heating unit is advantageously at least substantially constant.
  • the term "at least substantially constant” should be understood in particular to mean that the heating power deviates from a heating power averaged over the heating operation by at most 10%, preferably by at most 5% and particularly preferably by at most 2%. In this way, in particular a particularly reliable operating parameter can be determined, which advantageously represents a normal operation of the heater, which advantageously any fluctuations in ignition and / or ignition can be excluded.
  • control unit is provided to determine and / or determine the operating parameter at regular time intervals, it is advantageously possible to react to any fluctuations due to aging phenomena, and in particular to advantageously adapt operation to current conditions.
  • the control unit can be provided, for example, to determine the operating characteristic annually, monthly, daily and / or hourly. Alternatively or additionally, it is conceivable that the control unit is provided to determine the operating characteristic according to a, in particular fixed and / or definable, triggering event.
  • the triggering event may correspond, for example, to a specific fault, such as a misfire and / or an unexpectedly high fuel consumption, and / or a specific time interval, for example an unexpectedly long and / or short time interval between a start of operation and an ignition of the heating unit.
  • a specific fault such as a misfire and / or an unexpectedly high fuel consumption
  • a specific time interval for example an unexpectedly long and / or short time interval between a start of operation and an ignition of the heating unit.
  • control unit be provided to determine the operating parameter at least once, advantageously exactly once during each heating operation of the heating unit, in particular in time after the respective ignition operation and advantageously in an at least substantially adjusted and / or stabilized manner Continuous operation of the heating unit.
  • the control unit could be provided, for example, to use the determined starting value as a starting value for a following, in particular directly following, ignition operation and to delete a current starting value in particular.
  • the control unit is provided to compare the determined starting value with a current starting value and, in the case of a deviation of the ascertained starting value from the current starting value, which is greater than a limit deviation, to adapt the current starting value.
  • a "limit deviation” is to be understood as meaning, in particular, a relative deviation of the determined starting value from the current starting value of at most 40%, advantageously at most 20%, preferably at most 10% and particularly preferably at most 5%. In this way, in particular, an advantageous operation can be achieved, wherein advantageously slight fluctuations can be averaged out.
  • the operating characteristic could correspond, for example, to a drive signal of the dosing device for combustion air or to a drive signal of the dosing device for fuel and of the dosing device for combustion air.
  • the operating parameter is a drive signal of a metering device for fuel, in particular of the aforementioned metering device for fuel.
  • the drive signal of the metering device for fuel is correlated with a valve position, in particular a valve opening position, of the metering device for fuel. In this way, in particular a particularly simple control algorithm can be provided.
  • a heater device in particular a Gas and / or oil burner device proposed, in particular for combustion of a mixture, in particular from a combustion air and a fuel, with a control unit, which is provided, at least one ignition operation of a heating unit, in particular before an ignition of the heating unit, at least one at a previous, in particular the ignition operation and a heating operation of the heating unit comprehensive, operation of the heating unit determined operating characteristic to be considered, wherein the operating characteristic a time interval, advantageously between a start of operation and a Zündzeitpun kt the heating unit is.
  • an operational safety in particular during an ignition operation, can be increased by a corresponding design of the heater device.
  • an advantageously, in particular autonomously operating, heater can be provided, which is advantageous to be able to automatically, and in particular without intervention by a user, changing conditions, such as due to aging of a heating unit and / or changing environmental conditions to recognize and adjust operation accordingly, which in particular minimizes costs, increases a functional life, improves robustness and / or maintenance can be facilitated.
  • an efficiency in particular a heating efficiency, a time efficiency, an environmental efficiency and / or a cost efficiency can be increased.
  • an ignition time can be optimized, whereby a waste of fuel can be minimized and / or a safety for a user can be maximized.
  • an operating parameter which is independent of a measuring signal of the sensor can advantageously be achieved.
  • the invention proceeds from a method for operating a heater device, in particular a gas and / or oil burner device, according to claim 6.
  • the heater device should not be limited to the above-described application and embodiment.
  • the heater device may have a number different from a number of individual elements, components and units mentioned herein.
  • FIG. 1 shows a trained as a gas heater heater 34a in a schematic representation.
  • the heater 34a is formed as a gas burner.
  • a heater it is also conceivable to design a heater as an oil burner and / or any other heater.
  • the heater 34a has a heater device.
  • the heater apparatus includes a first combustion air metering unit 22a.
  • the first metering device 22a is designed as a variable-speed fan.
  • the first metering device 22a is provided to convey and regulate a first fluid flow 36a, in particular at least one combustion air flow.
  • the first metering device 22a is connected to a first supply line for combustion air.
  • the heater apparatus includes a second meter 20a for fuel.
  • the second doser 20a is designed as a throughput variable and electronic fuel valve.
  • the second metering device 20a is designed as a control valve. In the present case, the second metering device 20a is designed as an electrically controlled solenoid valve.
  • a second metering device 20a as an electrically controlled engine valve, in particular a stepper motor expansion valve, and / or as any other control valve and / or control valve.
  • the second metering device 20a is intended to convey and regulate a second fluid flow 38a, in particular a fuel flow.
  • the second metering device 20a is provided to convey and regulate a gas flow.
  • the second metering device 20a is connected to a second supply line for fuel.
  • a metering device for fuel comprises a fuel measuring unit and, in particular, is provided for precisely measuring a quantity of fuel.
  • the heater device has a supply unit 40a.
  • the supply unit 40a comprises a plurality of fluid paths.
  • the supply unit 40a comprises a combustion air path.
  • the combustion air path is provided to guide the first fluid stream 36a.
  • the supply unit 40a further includes a fuel path.
  • the fuel path is intended to guide the second fluid stream 38a.
  • the supply unit 40a comprises a mixture flow path.
  • the Gemischstromweg is intended to lead a mixture stream 42 a.
  • the mixture flow path is intended to mix the first fluid stream 36a with the second fluid stream 38a.
  • the heater apparatus includes a heating unit 14a.
  • the heating unit 14a is provided to burn a mixture of the combustion air and the fuel in at least one operating state, in particular to produce a heating flame 44a.
  • the heating unit 14a is connected to the supply unit 40a, in particular the Gemischstromweg.
  • the heating unit 14a is provided to generate the heating flame 44a in a combustion chamber of the heater device.
  • the heater device comprises an ignition unit (not shown), which is in particular provided to provide a pilot flame for the heating unit 14a.
  • the heater apparatus further includes a sensor 46a.
  • the sensor 46a is disposed in the combustion chamber of the heater apparatus. In the present case, the sensor 46a is disposed in a vicinity of the heating flame 44a of the heating unit 14a.
  • the sensor 46a is formed as a flame ionization electrode.
  • the sensor 46a is provided to detect a combustion, in particular of the mixture flow 42a, and in particular to provide a measured variable correlated with the combustion, in the present case in particular a combustion signal.
  • the sensor 46a makes use of the fact that flames conduct electricity when an electrical voltage is applied. Alternatively, it is conceivable to use a sensor with several measuring units and / or detection units. Furthermore, it is conceivable to use a sensor designed differently from a flame ionization electrode and / or to arrange a sensor in another region of a heater device.
  • the heater device has a control unit 10a.
  • the control unit 10a is provided to control an operation of the heater apparatus.
  • the control unit 10a has an arithmetic unit, a memory unit and an operating program stored in the memory unit, which is intended to be executed by the arithmetic unit.
  • the control unit 10a is provided to set and / or to provide a requested heating power.
  • the control unit 10a has an electrical connection to the first metering device 22a and the second metering device 20a.
  • the control unit 10a is provided to independently adjust the first fluid flow 36a and the second fluid flow 38a by means of the first metering device 22a and the second metering device 20a.
  • control unit 10a has an electrical connection to the sensor 46a.
  • the control unit 10a is intended to To provide drive signals 54a to an adjustment of the first doser 22a and the second doser 20a.
  • control unit 10a is provided in at least one operating state to adjust the heating power of the heating unit 14a in the manner of a control and using the measured variable of the sensor 46a, in particular by means of a control of the first metering device 22a and the second metering device 20a.
  • FIGS Figures 2 and 3 show chronologically consecutive graphs of various operations and / or operating conditions for determining and taking account of an operating characteristic in an ignition operation 12a, 13a.
  • the operating characteristic in the present case corresponds to a drive signal 54a of the second meter 20a for fuel.
  • the drive signal 54a of the second doser 20a corresponds to a control current.
  • an operating characteristic could also correspond to a drive signal of a first metering device for combustion air or a drive signal of a second metering device for fuel and a first metering device for combustion air.
  • a drive signal corresponds to a control voltage and / or any other drive signal.
  • An abscissa axis 48a shows a time.
  • An ordinate axis 50a is formed as a size axis.
  • a curve 52a shows an example of a temporal change of the drive signal 54a of the second meter 20a for fuel.
  • the activation signal 54a of the second metering device 20a is correlated with a valve position, in particular a valve opening position, of the second metering device 20a and thus corresponds in particular to the second fluid flow 38a, in particular to a fuel flow and, in the present case, in particular to a fuel quantity.
  • the control unit 10a is provided to keep a control signal of the first combustion air metering unit 22a constant during an ignition operation 12a, 13a and / or an ignition operation.
  • the control unit 10a is provided to vary the drive signal 54a of the second dosing device 20a starting from a starting value 24a, 26a.
  • the starting value 24a, 26a is between a minimum operating value 56a and a maximum operating value 58a.
  • the minimum operating value 56a and the maximum operating value 58a are stored in the memory unit of the control unit 10a and correspond to extreme values determined in an installation operation with the aid of test fuels.
  • the starting value 24a, 26a furthermore lies below an ignition value 60a of the heating unit 14a, which is required in particular for an ignition.
  • the ignition value 60a corresponds to a fuel-combustion air ratio required for ignition.
  • control unit 10a is provided to increase the drive signal 54a of the second doser 20a continuously, in the present case in particular linearly and in particular with a fixed and / or definable slope, over a defined period of time 62a immediately after a start of operation 30a, 31a, and thus in particular to increase a fuel quantity.
  • the period 62a corresponds to a safety interval.
  • the period of time 62a is smaller than a time period which is required to vary the drive signal 54a of the second doser 20a from the minimum operating value 56a to the maximum operating value 58a, in particular linearly with the slope. If there is no ignition within the period 62a, then a fuel supply stops automatically.
  • the heater 34a is blocked or the starting value 24a, 26a of the drive signal 54a of the second dosing device 20a is varied depending on an achieved end value of the drive signal 54a of the second dosing device 20a.
  • a value of the drive signal 54a of the second doser 20a reaches the ignition value 60a, an ignition takes place at an ignition time 32a, 33a.
  • the ignition operation 12a, 13a thus starts with an operation start 30a, 31a and ends with the ignition timing 32a, 33a.
  • a control unit may be provided to increase and / or decrease a drive signal exponentially and / or quadratically.
  • the heating operation 16a, 17a includes a control operation state 64a, 65a and a steady operation state 18a, 19a.
  • the control unit 10a is provided to keep the drive signal 54a of the second dosing device 20a constant for a short time and thus in particular to set the heating power of the heating unit 14a in the manner of a control.
  • the steady-state operating state 18a, 19a immediately adjoins the control operating state 64a, 65a.
  • the steady state 18a, 19a corresponds to a control mode.
  • the control unit 10a is provided to regulate the heating power of the heating unit 14a in the manner of a control, and in particular using the measured variable of the sensor 46a.
  • the measured variable of the sensor 46a corresponds to a controlled variable.
  • the control unit 10a is to provided to regulate in the continuous operating state 18a, 19a an air ratio of the combustion to a desired air ratio.
  • the drive signal 54a of the second doser 20a corresponds to a manipulated variable.
  • the control unit 10a is provided for adapting the drive signal 54a of the second metering device 20a such that the air ratio of the combustion corresponds to the desired air ratio in an at least substantially adjusted continuous operating state 18a, 19a.
  • the drive signal 54a of the second dosing device 20a is then at least substantially constant.
  • FIG. 2 shows a first operation and / or first operating state of the heating unit 14a
  • FIG. 3 represents a second operation and / or second operating state of the heating unit 14a
  • the first operation and / or first operating state of the heating unit 14a corresponds to a previous operation and / or operating state, based on the second operation and / or second operating state of the heating unit 14a.
  • first object objects which refer to the first operation and / or first operating state
  • second object objects which relate to the second operation and / or operating state become.
  • the control unit 10a is now provided to take into account at least one second ignition operation 13a a first operating characteristic determined at a previous first heating operation 16a of the heating unit 14a, wherein the first operating characteristic in the present case corresponds in particular to the drive signal 54a of the second metering unit 20a for fuel.
  • the control unit 10a is provided to determine the first operating parameter in the at least substantially adjusted first continuous operating state 18a of the heating unit 14a.
  • the control unit 10a is provided to determine the first operating characteristic at a first time 66a.
  • the first time 66a is a few seconds, in this case in particular 10 s, after the start of the first continuous operating state 18a.
  • the control unit 10a is provided to determine an operating parameter and / or the operating parameter at regular time intervals.
  • the control unit 10a is provided to determine exactly one operating parameter at each heating operation 16a, 17a of the heating unit 14a.
  • a control unit is provided to an operating parameter at regular time intervals, such as, for example, annually, monthly, daily and / or hourly, and / or in response to a triggering event, such as a particular fault.
  • the control unit 10a is provided for determining a starting value of the drive signal 54a of the second dosing device 20a on the basis of the determined first operating characteristic.
  • the determined starting value corresponds in the present case to the determined first operating characteristic minus a safety margin, in particular to take account of any fluctuations in the ignition operation and / or temperature fluctuations.
  • the control unit 10a is provided to compare the determined starting value with the current first starting value 24a and, in the event of a deviation of the determined starting value from the current first starting value 24a, which is greater than a limit deviation, to adapt the current first starting value 24a.
  • the control unit 10a is provided for adapting the current first starting value 24a in such a way that the determined starting value, in the present case in particular a second starting value 26a, is used in a following second ignition operation 13a.
  • the control unit 10a is provided to adapt the first starting value 24a in such a way that a period of time until ignition is optimized, in the present case in particular minimized.
  • a control unit may be provided to change a slope of a linear variation of a drive signal of a second dosing device, whereby an advantageously smooth ignition operation and / or ignition process can be achieved.
  • a control unit may be provided to determine, based on an operating parameter, a starting value of a control signal of a dosing device for combustion air or a dosing device for fuel and a dosing device for combustion air.
  • FIG. 4 shows an exemplary flowchart for operation of the heater device.
  • a step 70a the heater 34a is started.
  • the step 70a corresponds to a first operation of the heater 34a after an installation operation and / or a first operation of the heater 34a after a reset.
  • the control unit 10a is provided to set a start value to the minimum operation value 56a. Subsequently, the control unit 10a is provided to vary the drive signal 54a of the second dosing device 20a continuously, in the present case in particular linearly, over the time period 62a, in particular starting from the minimum operating value 56a.
  • a step 74a the control unit 10a checks, in particular by means of the sensor 46a, whether ignition of the heating unit 14a has taken place.
  • step 76a Upon successful ignition, step 76a follows.
  • the control unit 10a is provided to determine an operating parameter and to determine a starting value by means of the operating parameter in step 78a and possibly depending on the determined starting value, in particular if a deviation of the determined starting value from the current starting value is greater than a limiting deviation. adjust the current starting value, in this case in particular the minimum operating value 56a.
  • Step 80a corresponds to a, in particular continuous, heating operation of the heater 34a.
  • step 82a the control unit 10a is provided to adapt the current starting value, in particular to increase it.
  • S N S A + m ⁇ T S - x
  • step 84a the control unit 10a checks whether the drive signal 54a of the second doser 20a is below the maximum operating value 58a for a continuous, in this case, linear variation of the drive signal 54a of the second doser 20a over the time 62a from the updated start value , The following applies: S N + m ⁇ T S ⁇ B Max
  • step 86a corresponds to the maximum operating value 58a. If this is not the case, then in step 90a the heater 34a is disabled. Otherwise, step 86a follows.
  • step 86a the control unit 10a is provided to vary the drive signal 54a of the second doser 20a continuously, in the present case in particular linearly, over the time 62a, in particular starting from the updated start value.
  • step 88a the control unit 10a checks, in particular by means of the sensor 46a, whether an ignition of the heating unit 14a took place. Upon successful ignition, step 76a follows. If the ignition fails, step 82a follows.
  • a control unit is provided to vary a slope of a linear variation of a drive signal of a second dosing device.
  • a control unit could be provided, in particular merely to check whether an updated start value lies below a maximum operating value and / or is less than a maximum operating value.
  • step 82a in particular, dispenses with a step 82a, so that in the event of an unsuccessful ignition, step 74a is immediately followed by step 90a.
  • step 90a it is conceivable to adapt other parameters of the heater 34a in a step 82a, such as, for example, a particular type of fuel used and / or a fuel composition.
  • control unit 10a may be provided in particular to additionally take into account, at least one further ignition operation of the heating unit 14a, at least one further operating parameter determined at a previous operation of the heating unit 14a, in particular the further ignition operation and a further heating operation.
  • the further operating parameter is in particular a time interval between a further start of operation and a further ignition time of the heating unit 14a.
  • the control unit 10a can be provided in particular to determine the further operating characteristic instead of the operating characteristic or in addition to the operating characteristic, in particular in the same operation of the heating unit 14a.
  • the further operating parameter is a time interval between an operating start and a control operating state, a continuous operating state and / or an at least substantially regulated continuous operating state and / or any other time period.
  • the control unit 10a may be provided for determining a further starting value of the drive signal 54a of the second doser 20b and / or the drive signal of the first doser 22a on the basis of the further operating parameter and the determined further start value with a, advantageously in the memory unit of the control unit 10a deposited to compare reference start value and in particular in a deviation of the determined further starting value of the reference start value, which is greater than a limit deviation, to adjust a current start value 24a, 26a.
  • control unit 10a may be provided to adjust the current start value 24a, 26a in such a way that a period of time until ignition is shortened, for example in order to reduce an ignition duration and / or a waste of fuel, and / or to adapt the further starting value in such a way that a period of time is extended to the ignition, for example, to comply with safety regulations.
  • This last aspect of the invention could also be implemented on its own and preferably be combined with at least some and advantageously at least a majority of the aforementioned aspects.
  • FIG. 5 the embodiment of the aforementioned aspect is shown.
  • the following descriptions and the drawings are essentially limited to the differences between the embodiments, wherein with respect to the same designated components, in particular with respect to components with the same reference numerals, in principle to the drawings and / or the description of the other embodiment, in particular FIGS. 1 to 4 , can be referenced.
  • To distinguish the embodiments of the letter a is the reference numerals of the embodiment in the FIGS. 1 to 4 readjusted.
  • the letter a is replaced by the letter b.
  • FIG. 5 shows one to the Figures 2 and 3 an analogous diagram, wherein a first operation and / or a first operating state and a second operation and / or en second operating state are shown in the same graph.
  • a control unit 10b is provided to take into account at least one operating parameter determined during a previous operation of the heating unit 14b, including the ignition operation 12b, 13b and a heating operation 16b, 17b of the heating unit, in at least one ignition operation 12b, 13b of a heating unit 14b wherein the operation characteristic is a time interval 28b, 29b between an operation start 30b, 31b and an ignition timing 32b, 33b of the heating unit 14b.
  • the further operating parameter is a time interval between an operating start and a control operating state, a continuous operating state and / or an at least substantially regulated continuous operating state and / or any other time period.
  • the operating parameter corresponds to a duration of the ignition operation 12b, 13b.
  • control unit 10b is provided to determine an operating parameter and / or the operating parameter at regular time intervals.
  • the control unit 10b is provided to determine exactly one operating parameter each time the heating unit 14b is operated.
  • a control unit is provided to determine an operating parameter at regular time intervals, such as annually, monthly, daily and / or hourly, and / or depending on a triggering event, such as a specific error.
  • control unit 10b is provided to vary at least one ignition operation 12b, 13b for adjusting a fuel-combustion air ratio, a drive signal 54b of a second metering device 20a for fuel from at least one starting value 24b, 26b.
  • a control unit is provided for at least one ignition operation for setting a fuel combustion air ratio, a drive signal of a first metering device for combustion air or a drive signal of a second metering device for fuel and a first metering device for combustion air starting from at least one starting value vary.
  • control unit 10b is provided to use the operating parameter to determine a starting value of the drive signal 54b of a second metering unit 20b for fuel and to compare the determined starting value with a reference start value stored advantageously in a memory unit of the control unit 10b and with a deviation of the determined starting value of the reference start value, which is greater than a limit deviation, to adjust a current start value 24b, 26b.
  • the control unit 10b is intended to replace a first start value 24b of the first operating state by a second start value 26b of the second operating state.
  • the control unit 10b is provided to adapt the first starting value 24b such that a time duration until ignition is shortened.
  • a control unit is provided to adapt a first starting value in such a way that a time duration until ignition is prolonged, for example in order to comply with safety regulations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Regulation And Control Of Combustion (AREA)

Claims (6)

  1. Appareil de chauffage, en particulier dispositif de brûleur à gaz et/ou à fioul, avec une unité de commande (10a; 10b), qui est prévue pour tenir compte, lors d'au moins un fonctionnement d'allumage (12a, 13a; 12b, 13b) d'une unité de chauffage (14a; 14b), d'au moins une grandeur caractéristique de fonctionnement déterminée lors d'un fonctionnement de chauffage précédent (16a, 17a; 16b, 17b) de l'unité de chauffage (14a; 14b), et dans lequel l'unité de commande (10a) est prévue pour déterminer la grandeur caractéristique de fonctionnement dans un état de fonctionnement permanent (18a) au moins essentiellement régulé de l'unité de chauffage (14a), dans lequel il faut entendre par un "état de fonctionnement permanent au moins essentiellement régulé" un état de fonctionnement régulé du fonctionnement de chauffage, dans lequel l'unité de commande est prévue pour régler la puissance de chauffage de l'unité de chauffage à la manière d'une régulation et il se produit un fonctionnement stable de l'appareil de chauffage, en particulier de l'unité de chauffage, caractérisé en ce que l'unité de commande (10a; 10b) est prévue pour faire varier, lors d'au moins un fonctionnement d'allumage (12a, 13a; 12b, 13b) pour le réglage d'un rapport combustible-air de combustion, un signal de commande (54a; 54b) d'un dispositif de dosage (20a; 20b) pour le combustible et/ou d'un dispositif de dosage (22a) pour l'air de combustion à partir d'au moins une valeur de démarrage, dans lequel la valeur de démarrage pour le dispositif de dosage pour le combustible correspond à la grandeur caractéristique de fonctionnement déterminée diminuée d'une marge de sécurité et dans lequel l'unité de commande (10a; 10b) est prévue pour comparer la valeur de démarrage déterminée avec une valeur de démarrage (24a, 26a; 24b, 26b) déterminée lors du fonctionnement de chauffage précédent et, dans le cas d'un écart entre la valeur de démarrage déterminée et la valeur de démarrage précédente (24a, 26a; 24b, 26b), qui est supérieur à un écart limite, adapter la valeur de démarrage (24a, 26a; 24b, 26b).
  2. Appareil de chauffage selon la revendication 1, caractérisé en ce que l'unité de commande (10a; 10b) est prévue pour déterminer la grandeur caractéristique de fonctionnement à des intervalles de temps réguliers.
  3. Appareil de chauffage selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité de commande (10a; 10b) est prévue pour déterminer au moins une fois la grandeur caractéristique de fonctionnement à chaque fonctionnement de chauffage (16a, 17a; 16b, 17b) de l'unité de chauffage (14a; 14b).
  4. Appareil de chauffage selon l'une quelconque des revendications précédentes, caractérisé en ce que la grandeur caractéristique de fonctionnement est un signal de commande (54a; 54b) d'un dispositif de dosage (20a; 20b) pour le combustible.
  5. Appareillage de chauffage (34a), en particulier dispositif de brûleur à gaz et/ou à fioul, avec au moins un appareil de chauffage selon l'une quelconque des revendications précédentes.
  6. Procédé de fonctionnement d'un appareil de chauffage, en particulier d'un dispositif de brûleur à gaz et/ou à fioul, selon l'une quelconque des revendications 1 à 4, dans lequel on tient compte, lors d'au moins un fonctionnement d'allumage (12a, 13a; 12b, 13b) d'une unité de chauffage (14a; 14b), d'au moins une grandeur caractéristique de fonctionnement déterminée lors d'un fonctionnement de chauffage précédent (16a, 17a; 16b, 17b).
EP16192313.1A 2015-10-29 2016-10-05 Appareil de chauffage et procédé de fonctionnement d'un appareil de chauffage Active EP3163169B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015221154.1A DE102015221154A1 (de) 2015-10-29 2015-10-29 Heizgerätevorrichtung und Verfahren zum Betrieb einer Heizgerätevorrichtung

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EP3163169B1 true EP3163169B1 (fr) 2019-08-21

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DE (1) DE102015221154A1 (fr)

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
DE4323221C1 (de) * 1993-07-12 1994-12-15 Webasto Thermosysteme Gmbh Verfahren zum Starten eines brennerbetriebenen Heizgerätes
AT406514B (de) * 1997-04-28 2000-06-26 Vaillant Gmbh Verfahren zur zündung eines gasbeheizten brenners
DK1522790T3 (da) * 2003-10-08 2012-03-19 Vaillant Gmbh Fremgangsmåde til regulering af en gasbrænder, navnlig ved varmeinstallationer med blæser
DE102006006964B4 (de) * 2006-02-14 2012-09-06 Ebm-Papst Landshut Gmbh Verfahren zum Starten einer Feuerungseinrichtung bei unbekannten Rahmenbedingungen
EP2971964B1 (fr) * 2013-03-11 2017-11-29 Idea S.p.A. Procédé et dispositif de commande de combustion de brûleur

Non-Patent Citations (1)

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Title
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EP3163169A1 (fr) 2017-05-03
DE102015221154A1 (de) 2017-05-04

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