EP3301362A1 - Control of turbulent flows - Google Patents

Abstract

Control of turbulent flows. Controlling a burner device comprising: requesting a flow (5) of a fluid through a supply channel (11), allocating the flow (5) through the supply channel (11) to a position of a first actuator (4, 3), generating a first signal (23 , 22) for a first actuator (4, 3), generating a second signal (21) by the mass flow sensor (13) as a function of a flow (15) through the side channel (28), processing the second generated by the mass flow sensor (13) Signal (21) to an actual value, processing the requested flow (5) through the supply channel (11) to a desired value (32), generating a control signal (22, 23) by a controller (37) for a second actuator (3, 4) as a function of the actual value of the flow through the side channel (28) and the desired value (32) of the flow (15) through the side channel (28), outputting the first signal (23, 22) to the first actuator (4, 3) and the control signal (22, 23) to the second actuator (3, 4).

Description

background

The present disclosure deals with the control of flows of a fluid in a combustion device. In particular, the present disclosure addresses the control of flows of fluids, such as air, in the presence of turbulence.

Changes in air temperature and / or air pressure cause variations in the air ratio λ. Combustion devices are therefore set with an excess of air. This measure serves to prevent unhygienic combustion. A disadvantage of the adjustment of combustion devices to an excess of air is a reduced efficiency of the system.

Furthermore, the speed sensor and air pressure switch for measuring the air flow into consideration. A disadvantage of speed encoders is that they are not sensitive to fluctuations in air temperature and pressure. A disadvantage of air pressure switches is that an air pressure monitoring succeeds only at a certain pressure. After all, can be monitored by using multiple switches air pressure at several pressures. Nevertheless, a readjustment in the entire operating range of the combustion device is hardly possible so far. A solution for adjustment at one point further requires two units.

The occurrence of turbulence further complicates the problem because the signal of a flow sensor is strongly influenced by its mounting position in the midst of a turbulent flow. In addition, the measurement signal is very noisy due to the turbulence.

The European patent EP1236957B1 issued on November 2, 2006, deals with the adaptation of a burner-operated heater to an air-exhaust system. EP1236957B1 discloses a pressure sensor / air mass sensor 28 disposed in the air supply 14 or exhaust discharge of a heater. A regulator 30 regulates a fan 26 based on the signal from the sensor 28. An operating characteristic 40 is stored for balancing the instantaneous air volume flow to a required air volume flow. To improve the control behavior with large temperature differences and in terms of emergency running properties, a temperature sensor 35 is provided.

The European patent EP2556303B1 is issued on February 24, 2016 and deals with a mass balance pneumatic joint. EP2556303B1 discloses a Venturi nozzle 5, which generates negative pressure, with a mass flow sensor 6 in an additional channel 7. A control or regulation 9 regulates the rotational speed of a blower 1 as a function of the signal of the sensor 6.

The German patent DE102004055715B4 is issued on March 22, 2007 and deals with the adjustment of the air ratio of a firing device. According to DE102004055715B4 an air mass flow m _{L is} so controlled to an increased value that a hygienic combustion occurs.

The aim of the present disclosure is to improve the control of flows in combustion devices, especially in the presence of turbulence.

Summary

The present disclosure teaches an improved method and / or apparatus for controlling flows in combustors in the presence of turbulence. For this purpose, a side channel is connected to a feed and / or with a discharge for a gaseous fluid in the combustion device. The side channel is connected to the supply or discharge such that a fluid from the supply and / or discharge can flow into the side channel. In the side channel at least one flow resistance element is introduced. Thus, the mass flow sensor in the side channel becomes insensitive to solid components and / or droplets in the fluid that might otherwise impact the mass flow sensor. If necessary, impinging solid components and / or droplets in the fluid can damage the mass flow sensor. In addition, the flow resistance element reduces the turbulence of the flow at the mass flow sensor.

A control device is now connected to at least a first, controlled actuator and at least one second, controlled actuator. Both actuators set the desired flow of air. In order to achieve a desired flow of air through the main channel, the controller initially sets the controlled actuator for the fuel according to the desired flow in the main channel (supply and / or discharge) based on values stored and / or determined. The control device now determines the flow in the main channel based on the signal of the mass flow sensor in the side channel. It then forms the difference to the setpoint. The control device regulates based on the difference formed the second, controlled actuator.

The said problem control in the presence of turbulence will become apparent from the main claims of the present disclosure addressed. Particular embodiments are dealt with in the dependent claims.

It is a related objective that the determination of the desired flow of air or fuel is the result of a higher temperature control. In this case, the temperature of a medium and / or goods in the heat consumer is maintained at a target desired value by means of a temperature control.

It is a further related object that the quantity setting of one or more actuators for adjusting the air flow is determined via a respective stored functional relationship from a predetermined air flow. In this case, one of the actuators for adjusting the air flow with the help of the flow sensor in the side channel is adjusted so that the predetermined value of the air flow is achieved.

It is a further related object that the amount adjustment of the fuel and the air flow, the value of which is determined by means of the flow sensor in the side channel, are assigned to each other. Such can be done either by a fixed assignment and / or by an assignment as a result of a λ-control.

Another related goal is to determine burner performance via the air flow rate determined by the side channel mass flow sensor. The mass flow sensor compensates for influences such as air temperature and / or barometric pressure on the air. If the air ratio λ is kept constant by means of a control, the burner output remains (almost) the same regardless of the type of fuel.

It is a related object of the present disclosure to provide a method and / or apparatus for controlling To provide flows in combustion devices, wherein the method and / or the device are designed for fail-safe control of a flow in a combustion device.

It is another object of the present disclosure to provide a method and / or apparatus for controlling flows in combustion devices, wherein the method and / or the device is configured to detect faults in the combustion device, in particular to detect faults in the actuators incinerator.

It is another object of the present disclosure to provide a method and / or apparatus for controlling flows in combustion devices, wherein at least one actuator is controlled and / or regulated based on a pulse width modulated signal.

It is another object of the present disclosure to provide a method and / or apparatus for controlling flows in combustion devices, wherein at least one actuator is controlled and / or regulated by means of an inverter.

It is another related object of the present disclosure to provide a method and / or apparatus for measuring flows in combustors wherein the noise generated by turbulence in the mass flow sensor signal is filtered by means of (electronic and / or digital) circuitry. Advantageously, the filter is filtered on the basis of a moving average filter and / or on the basis of a filter with finite impulse response and / or on the basis of a filter with infinite impulse response and / or on the basis of a Chebyshev filter.

Brief description of the figures

• FIG 1 zeigt schematisch ein System mit Verbrennungseinrichtung, worin die Strömung eines Fluids in einer Luftzuführung gemessen wird.
• FIG 2 zeigt schematisch und detailliert den Seitenkanal.
• FIG 3 zeigt schematisch ein System mit einer Verbrennungseinrichtung und mit einer druckseitig angeordneten Luftklappe.
• FIG 4 zeigt schematisch ein System mit Verbrennungseinrichtung und mit einer Mischeinrichtung vor dem Gebläse.
• FIG 5 zeigt schematisch einen Seitenkanal mit Umgehungskanal.
• FIG 6 zeigt schematisch einen Regelkreis für das System.

Various details will become apparent to those skilled in the art from the following detailed description. The individual embodiments are not restrictive. The drawings which are attached to the description can be described as follows:

• FIG. 1 schematically shows a system with combustion device, wherein the flow of a fluid is measured in an air supply.
• FIG. 2 shows schematically and in detail the side channel.
• FIG. 3 schematically shows a system with a combustion device and with a pressure side arranged damper.
• FIG. 4 shows schematically a system with combustion device and with a mixing device in front of the blower.
• FIG. 5 schematically shows a side channel with bypass channel.
• FIG. 6 schematically shows a control loop for the system.

Detailed description

FIG. 1 shows a system comprising a burner 1, a heat consumer 2, a fan 3 with adjustable speed and a motorized flap 4. The motorized flap 4 is disposed after the air inlet 27. The heat consumer 2 (heat exchanger) may for example be a hot water boiler. The flow (particle flow and / or mass flow) 5 of the fluid air can according to FIG. 1 be adjusted both by the motorized flap 4 and by the speed specification 22 of the blower.

It can also be adjusted by the speed of the fan 3 in the absence of flap 4, the air flow 5. To adjust the speed of the fan 3, for example, pulse width modulation comes into question. According to another embodiment, the motor of the fan is connected to a converter. The speed of the fan is thus adjusted via the frequency of the inverter.

According to another embodiment, the fan runs at a fixed, unchangeable speed. The air flow rate 5 is then determined by the position of the flap 4. In addition, other actuators are possible, which change the air flow 5. This may be, for example, a nozzle adjustment of the burner and / or an adjustable flap in the exhaust duct.

The flow 6 (eg, particle flow and / or mass flow) of the fluid fuel through the fuel supply passage 38 is adjusted by a fuel flap 9. According to one embodiment, the fuel flap 9 is a (motor-adjustable) valve.

As fuel, for example, combustible gases such as natural gas and / or propane gas and / or hydrogen come into question. As a fuel, a liquid fuel such as heating oil in question. In this case, the flap 9 is powered by a motor adjustable oil pressure regulator replaced in the return of the oil nozzle. The safety shutdown function and / or closing function is implemented by the redundant safety valves 7 - 8. According to a special embodiment, the safety valves 7 - 8 and / or the fuel flap 9 are implemented as an integrated unit (s).

According to a further embodiment, the burner 1 is an internal combustion engine. In particular, an internal combustion engine of a plant with combined heat and power in question.

Fuel is added to the air stream 5 in and / or in front of the burner 1. The mixture is burned in the combustion chamber of the heat consumer 2. The heat is transported on in the heat consumer 2. For example, heated water is removed via a pump to heating elements and / or heated in industrial furnaces a good (direct). The exhaust stream 10 is discharged via an exhaust path 30, such as a chimney, (in the environment).

A regulation and / or control and / or monitoring device 16 coordinates all actuators such that the correct flow rate 6 of fuel is adjusted via the position of the flap 9 to the corresponding throughput 5 of air for each power point. This results in the desired air ratio λ. According to a special embodiment, the control and / or control and / or monitoring device 16 is designed as a microcontroller.

For this purpose, the control and / or control and / or monitoring device 16, the blower 3 via the signal 22 and the air damper 4 via the signal 23 in the control and / or control and / or monitoring device 16 (in the form of a Characteristic curve). Preferably, the regulation and / or control and / or monitoring device 16 comprises a (non-volatile) memory. In the store are those Values stored. The position of the fuel flap 9 is specified via the signal 26. In operation, the safety shut-off valves 7, 8 are opened via the signals 24, 25. The safety shut-off valves 7, 8 are kept open during operation.

If faults of a flap 4, 9 and / or in the blower 3 (for example in the (electronic) interface or control device of the flap and / or the blower) are revealed, this can be achieved by a safety-related feedback of the position of the flap 4 over the (bidirectional ) Signal line 23 for the flap 4 and / or via the (bidirectional) signal line 26 for the flap 9 done. A safety-related position message can be realized, for example, via redundant position encoders. If a safety-related feedback on the speed is required, this can be done via the (bidirectional) signal line 22 using (safety-related) speed sensors. For this example, redundant speed sensor can be used and / or the measured speed can be compared with the target speed. The control and feedback signals can be transmitted via different signal lines and / or via a bidirectional bus, for example a CAN bus.

In front of the burner, a side channel 28 is attached. Through the side channel 28 flows a small amount of outflowing air 15 to the outside. Ideally, the air 15 flows into the space from which the blower 3 attracts the air. According to another embodiment, the outflowing air 15 flows into the combustion chamber of the heat consumer 2. According to yet another embodiment, the air flows back into the air duct 11. In this case, a flow resistance element (an orifice) is arranged in the air duct 11 between the tap and return (at least locally). The side channel 28, together with the burner 1 and the exhaust path 30 of the heat consumer 2, a flow divider. For a fixed flow path through burner 1 and exhaust passage 30 flows each for a value of Air flow 5 (reversibly unique) an associated value of an air flow 15 through the side channel 28 from. The flow path through burner 1 and exhaust path 30 must be defined only for each power point. So it can vary over the power (and thus over the air flow).

The person skilled in the art recognizes that the side channel 28 can be both an outflow channel and an inflow channel with respect to the air channel 11, depending on the pressure conditions.

In the side channel 28, a flow resistance element (in the form of a diaphragm) 14 is attached. With the flow resistance element 14, the amount of outflowing air 15 of the flow divider is defined. The person skilled in the art recognizes that the function of the diaphragm 14 as a defined flow resistance can also be realized by a tube of defined length (and diameter). The skilled person further recognizes that the function of the diaphragm 14 can also be realized by means of a laminar flow element and / or by another defined flow resistance.

According to a special embodiment, the passage area of the flow resistance element 14 is adjustable by motor. To avoid and / or remedy obstruction by suspended particles, the passage area of the flow resistance element 14 can be adjusted. In particular, the flow resistance element 14 can be opened and / or closed. The passage area of the flow resistance element is preferably adjusted several times in order to avoid and / or remedy blockages.

The flow rate 15 in the side channel 28 depends on the passage area of the flow resistance element 14. Therefore, the value of the flow 5 is above values stored in the (non-volatile) memory for the measured values of the flow 15 for each passage area used Flow resistance element 14 deposited. Thus, the value of flow 5 can be determined from the measured values of the flow 15.

With this arrangement, the flow (particle flow and / or mass flow) through the side channel 28 is a measure of the air flow 5 through the burner. In this case, influences due to changes in the density of the air are compensated, for example, by changes in the absolute pressure and / or the air temperature by the mass flow sensor 13. Normally, the flow 15 is much smaller than the air flow 5. Thus, the air flow 5 (practically) is not affected by the side channel 28. According to a specific embodiment, the (particle and / or mass) flow 15 through the side channel 28 is at least a factor of 100, preferably at least a factor of 1000, more preferably at least a factor of 10000 less than the (particle and / or Mass) stream 5 through the air duct 11th

In FIG. 2 the section in the area of the side channel 28 is shown enlarged. By means of a mass flow sensor 13, the value of the air flow 15 in the side channel 28 is detected. The signal of the sensor is transmitted via the signal line 21 to the control and / or control and / or monitoring device 16. In the control and / or control and / or monitoring device 16, the signal is mapped to a value of the air flow 15 through the side channel 28 and / or the air flow 5 through the air duct 11. According to a further embodiment, a signal processing device is present at the location of the mass flow sensor 13. The signal processing device has a suitable interface in order to transmit a signal (processed to a value of the air flow) to the regulating and / or control and / or monitoring device 16.

Sensors such as the mass flow sensor 13 allow the measurement at high flow rates, especially in conjunction with Incinerators in operation. Typical values of such flow rates are in the ranges between 0.1 m / s and 5 m / s, 10 m / s, 15 m / s, 20 m / s, or even 100 m / s. Mass flow sensors suitable for the present disclosure include OMRON® D6F-W or Type SENSOR TECHNICS® WBA sensors. The usable range of these sensors typically begins at speeds between 0.01 m / s and 0.1 m / s and ends at a speed such as 5 m / s, 10 m / s, 15 m / s, 20 m / s, or even 100 m / s. In other words, lower limits such as 0.1 m / s can be combined with upper limits such as 5 m / s, 10 m / s, 15 m / s, 20 m / s, or even 100 m / s.

Regardless of whether the signal processing in the control and / or control and / or monitoring device 16 or at the location of the mass flow sensor 13, the signal processing device may include a filter. The filter averages over fluctuations in the signal caused by turbulence. One skilled in the art would choose a suitable filter such as a moving average filter, a finite impulse response filter, an infinite impulse response filter, a Chebyshev filter, etc. According to a specific embodiment, the filter is implemented as a (programmable) electronic circuit.

The combination of stagnation probe 12, flow resistance element 14 and filter is advantageous. Through the filter can be compensated frequency components of the fluctuations of the signal of the mass flow sensor 13, which can hardly compensate for the jam probe 12 and / or over the flow resistance element 14. Preferably, the jam probe 12 integrates pressure fluctuations of the mass flow 5 in the feed channel 11 of greater than 10 Hz, more preferably greater than 50 Hz. Preferably, the flow resistance element 14 dampens pressure fluctuations of the mass flow 5 in the feed channel 11 by a factor of 5, more preferably more than a factor of 10 or even more than a factor of 40. Complementarily, the filter integrates fluctuations in the range greater than 1 Hz, preferably greater than 10 Hz.

According to a further specific embodiment, individual or all signal lines 21-26 are designed as (eight-wire) computer network cables with (or without) integrated energy transmission in the cable. Advantageously, the units connected to the signal lines 21-26 not only communicate via the signal lines 21-26, but they are also supplied with energy for their operation via suitable signal lines 21-26. Ideally, powers up to 25.5 watts can be transmitted through signal lines 21-26. It is envisaged that individual or all units connected to the signal lines 21-26 have internal energy stores such as accumulators and / or (super) capacitors. In particular, the power supply of the connected units is ensured in the event that the power of those units exceeds the powers that can be transmitted via the signal lines 21-26. Alternatively, the signals may also be transmitted over a two-wire bidirectional bus, e.g. a CAN bus are transmitted.

In the FIG. 2 illustrated form of measuring a flow in a side channel 28 is particularly advantageous for combustion devices. The air flow 5 in the air duct 11 between the fan 3 and burner 1 is (often) turbulent. The flow fluctuations due to turbulence are in the same order of magnitude as the average value of the air stream 5. This makes a direct measurement of the value of the air stream 5 (considerably) more difficult. The flow fluctuations occurring in the side channel 28 fall significantly lower than the flow fluctuations generated in the air duct 11 by the blower 3. Thus, one obtains with the in FIG. 2 The side channel 28 is constructed so that one receives (practically) no relevant macroscopic flow profile of the air stream 15. In the side channel 28 of the air flow 15 preferably laminar sweeps over the mass flow sensor 13. The expert uses, inter alia, the Reynolds number Re _D for dividing the mass flow 15 of a fluid in the side channel 28 with diameter D in laminar or turbulent. According to one Embodiments apply flows with Reynolds numbers Re _D <4000, more preferably with Re _D <2300, further preferably with Re _D <1000 as laminar.

Preferably, the passage area of the flow resistance element 14 is dimensioned to give rise to a defined, preferably laminar, flow profile (of a mass flow 15) in the side channel 28. A defined flow profile in the side channel 28 is characterized by a defined velocity distribution of a mass flow 15 as a function of the radius of the side channel 28. The mass flow 15 thus does not run chaotically. A defined flow profile is unique for each flow rate 15 in the side channel 28. With a defined flow profile, the flow value measured locally on the mass flow is representative of the flow rate in the side channel 28. It is thus representative of the flow rate 5 in the feed channel 11. A defined flow profile (of a mass flow 15) in the side channel 28 is preferably not turbulent. In particular, a defined flow profile (of a mass flow 15) in the side channel 28 may have a (parabolic) velocity distribution as a function of the radius of the side channel 28.

In the arrangement according to FIG. 2 however, it is not an indirect pressure measurement. In contrast to a pressure measurement changes in the mass flow due to a change in temperature are detected. The device disclosed here can also compensate for temperature changes by means of the regulating and / or control and / or monitoring device 16. The mass flow sensor 13 is easy to install (for the expert) to virtually any system on the pressure side.

In order to further reduce the influence of turbulence, the air flow 15 can be directed via a baffle probe 12 into the side channel 28. The jam probe 12 is arranged in the air channel 11. The jam probe 12 is in the form of a tube of any cross-section (for example, round, angular, triangular, trapezoidal, preferably round) executed. The end of the tube 12 in the direction of the main air flow 5 is closed. The end of the tube, which protrudes from the tube with the main flow 5, forms the beginning of the side channel 28. That end opens into the side channel 28. Laterally on the side of the jam probe 12 in the direction from which the air flow 5 comes, several Openings (for example, slots and / or holes) 31 attached. Through the openings 31, a fluid such as air from the air duct 11 can enter the stagnation probe 12. Thus, the jam probe 12 via the openings 31 with the air channel 11 in fluid communication. The total area of the openings 31 (the cross-section through the openings 31) is significantly greater than the passage area of the flow resistance element 14. Thus, the passage area of the flow resistance element 14 is (practically) determining the value of the air flow 15 through the side channel 28. According to a specific embodiment the total flow-through cross section of the openings 31 is at least a factor of 2, preferably at least a factor of 10, particularly preferably at least a factor of 20, greater than the passage area of the flow resistance element 14.

The person skilled in the art will choose a small area for the total area of the openings 31 in relation to the cross section of the jam probe 12. Thus fluctuations of the turbulent main flow 5 (practically) do not affect. In the tube of the jam probe builds a calm back pressure. According to a specific embodiment, the total flow-through cross section of the openings 31 is at least a factor of 2, preferably at least a factor of 5, particularly preferably at least a factor of 10, smaller than the cross section of the jam probe 12.

A further advantage of the arrangement is that suspended particles and / or droplets are less likely to enter the side channel 28. Due to the much lower speeds of the air in the side channel 28 and the back pressure in the jam probe 12 are suspended particles and / or droplets in the turbulent main flow. 5 further swirled. Larger solid particles and / or droplets can hardly reach the jam probe 12 due to the dynamic pressure and due to the openings 31. You will be whirled past the jam probe 12. The individual openings of the inlet 31 preferably have a diameter of less than 5 mm, more preferably less than 3 mm, particularly preferably less than 1.5 mm.

The person skilled in the art applies the openings 31 along the baffle probe 12 such that the mean value of the dynamic pressure forms over a macroscopic flow profile of the air flow 5 in the baffle probe 12. The person skilled in the art will select a jam probe 12 of defined length in order to smooth a macroscopic flow profile of the air flow 5 in the interior of the tube. It adjusts via a matched to the air duct 11 length of the jam probe 12, the respective flow conditions for differently designed air ducts 11 at. This is especially true for air ducts with different diameters.

FIG. 3 shows as opposite FIG. 1 modified embodiment, a system with a motorized air damper 4. The air damper 4 is located downstream of the fan 3. The louver 4 is also located downstream of the side channel 28. The system off FIG. 3 allows the determination of a position of the air damper 4 and / or the fan speed for each power point. This results (reversibly unambiguously) from each flow value 5 and the (confirmed) position of the air damper 4 and / or the (feedback) speed of the blower 3, a flow value 15 in the side channel 28th

FIG. 4 shows as opposite FIG. 1 and FIG. 3 modified embodiment, a system with mixing device 17 in front of the blower 3. In contrast to the systems of FIG. 1 and from FIG. 3 Fuel is not mixed with the burner 1 with air. Instead, fuel is mixed by means of a mixing device 17 in front of the blower 3 the air stream 5. In the blower 3 (and in the channel 11) is therefore the fuel-air mixture. The Fuel-air mixture is then burned in the burner 1 in the combustion chamber of the heat consumer 2.

In contrast to FIG. 1 and FIG. 3 the air 15 flows on the suction side via the mass flow sensor 13. The blower 3 generates a negative pressure at this location. In other words, the side channel 28 is an inflow channel. The side channel 28 is advantageously arranged in front of the mixing device 17. Thus, a possible negative pressure generated by the mixing device 17 does not affect the flow 15 (particle flow and / or mass flow) through the side channel 28.

Changes in the amount of gas as a result of adjustments of the motorized fuel flap 9 do not affect the flow 15 through the side channel 28. If the negative pressure in the supply of the blower 3 is not sufficient, a defined flow resistance can be generated with a flow resistance element 18 at the inlet 27 of the blower supply. Together with the flow resistance element 14 in the side channel 28, a flow divider is realized.

In FIG. 4 the fluid flow 5 can be adjusted only via the fan 3 by means of the signal line 22. The expert recognizes that a (motorized flap) can be additionally installed. Such a flap is arranged on the pressure side or suction side to the blower 3. The flap may be installed instead of the flow resistance element 18 according to another embodiment. It is then practically designed as a motor-adjustable flow resistance element (with feedback).

The mass flow sensor 13 is (for the skilled person easy) suction side to attach virtually any system. Also in FIG. 3 and FIG. 4 compensate for the disclosed systems Density changes of the air like to FIG. 1 explained. In each case, the particle and / or mass flow 5 of the fluid through the burner 1 is determined.

The measurement of the flow 15 in the side channel 28 takes place with a mass flow sensor 13. The mass flow sensor 13 is arranged in the inflow channel / outflow channel 28. The mass flow sensor 13 operates advantageously according to the anemometer principle. In this case, an (electrically) operated heater heats the fluid. The heating resistor can also be used as a temperature measuring resistor. In a measuring element arranged in front of the heating resistor, the reference temperature of the fluid is measured. The reference temperature measuring element can also be designed as a resistor, for example in the form of a PT-1000 element.

Ideally, the heating resistor and reference temperature resistor are arranged on a chip. The person skilled in the art recognizes that in this case the heating must be thermally sufficiently decoupled from the reference temperature measuring element.

The anemometer can be operated in two possible ways. According to a first embodiment, the heating resistor is heated with a constant, known heating power, heating voltage and / or heating current. The differential temperature of the heater to the reference temperature measuring element is a measure of the flow (particle flow and / or mass flow) in the side channel 28. It is thus also a measure of the flow 5 (particle flow and / or mass flow) of the main flow (through channel 11).

According to a second embodiment, the heater is heated in a closed temperature control loop. This results in a constant temperature of the heater. The temperature of the heater is the same as the temperature of the setpoint of the control loop (except for variations due to regulation). The setpoint of the temperature of the heater is determined by a constant temperature difference to the measured temperature of the heater Reference temperature measuring element is added. The constant temperature difference thus corresponds to the overtemperature of the heater relative to the reference temperature measuring element. The power introduced into the heater is a measure of the flow (particle flow and / or mass flow) in the side channel 28. It is therefore also a measure of the flow 5 (particle flow and / or mass flow) of the main flow.

The measuring range of the flow sensor may under certain circumstances correspond to a low flow 15 in the side channel 28. Consequently, with sufficiently high blower pressure, the passage area of the flow resistance element 14, which determines the flow 15, must be made small. With such small passage areas there is a risk that the flow resistance element 14 is clogged by suspended particles. FIG. 5 teaches how in such cases a pressure divider with bypass channel 29 can be constructed.

Behind the first flow resistance element 14 with a larger passage area is then a second flow resistance element 19. Thus, the pressure between the two flow resistance elements 14 and 19 is divided. The passage surfaces of the flow resistance elements 14 and 19 determine the division of the pressure. Before the mass flow sensor 13 in the bypass channel 29, a further flow resistance element 20 is arranged. The skilled person selects the passage area of the flow resistance element 20 sufficiently large. The person skilled in the art also selects a passage surface of the flow resistance element 20 adapted to the mass flow sensor 13. With the subflow divider constructed in this way, the flow 5 (particle flow and / or mass flow) through channel 11 can then be closed (reversibly unambiguously).

For a fail-safe execution of the measurement process, the mass flow sensor 13 can be implemented redundantly (twice) with result comparison. The double version initially concerns the Mass flow sensor 13 itself and the signal processing device. The result comparison can then be carried out in a secure hardware and / or software at the location of the sensors and / or in the control and / or monitoring and / or monitoring device 16. According to a further embodiment, the side channel 28 is implemented redundantly (twice). Preferably, each redundant side channel 28 includes a flow resistance element 14. Thus, errors due to clogged flow resistance elements 14 can be detected. The branch for the second side channel is in this case preferably between flow resistance element 14 and jam probe 12. The jam probe 12 can be assumed to be failsafe due to the (comparatively) large openings 31.

mit den Grenzen ε ₁ und ε ₂. Mit Hilfe einer Kennlinie der jeweiligen Grenzwerte ε ₁ und ε ₂ über dem Sollwert des Durchflusses 5 kann die Differenz Δ für jeden Sollwert des Durchflusses 5 verglichen und bewertet werden.It may be other errors such as formation of deposits on the mass flow sensor 13, scratches and / or other damage that affect the measurement signal can be detected. Due to the (dual) redundant design of the signal processing device and errors in the signal processing device can be detected. According to one embodiment, the measured values of the redundant mass flow sensors 13, preferably each with additional averaging, are compared by subtraction. The difference Δ is then within a threshold band $$-{{\mathrm{<figure-callout\; id="1"\; label="\epsilon "\; filenames="imgf0001.png,imgf0003.png"\; state="\{\{state\}\}">\epsilon </figure-callout>}}_1\le \mathrm{\Delta }\le \epsilon }_2$$

with the limits ε ₁ and ε ₂ . With the aid of a characteristic curve of the respective limit values ε ₁ and ε ₂ to the target value of the flow 5, the difference Δ are compared and evaluated for each set value of the flow rate. 5

With the described arrangement, the flow 5 (particle flow and / or mass flow) through channel 11 can be regulated by means of the sensor signal 21 via the blower 3. To achieve the desired value of the flow 5, all air actuators 4, except for the rotational speed of the blower 3, are each set to a fixed setpoint position. The target positions are for the required flow 5 (particle flow and / or mass flow) through channel 11 in the control and / or control and / or monitoring device 16 deposited. Based on a closed loop, the speed of the blower 3 is adjusted so far until the sensor measured value 21 reaches the value stored in the memory for the required flow.

FIG. 6 shows the control loop. The required value for the required flow 5 (particle flow and / or mass flow) through channel 11 associated setpoint 32 for the flow 15 in the side channel 28 is stored in the memory of the control and / or control and / or monitoring device 16. A comparison between the desired value 32 and the signal 21 of the mass flow sensor 13 results in a desired-actual deviation 33 via a (difference) device 35. By means of a controller 37, for example as a (self-adapting) PI controller or as (self-adapting ) PID controller can be executed, the control signal 22 for the fan 3 is specified. The fan 3 generates in response to the control signal 22 the flow 5 (particle flow and / or mass flow) through channel 11. The signal 21 with the aid of the aforementioned measuring arrangement 34 comprising the side channel 28, at least one flow resistance element 14, the mass flow sensor 13 and optionally the Stausonde 12 generated. The signal 21 is a (reversibly unique) measure of the flow 5 (particle flow and / or mass flow) through channel 11. The control loop disclosed here compensates for changes in air density. Such changes occur, for example, as a result of temperature fluctuations and / or changes in the absolute pressure.

The person skilled in the art recognizes that the controller 29 can also be realized as a fuzzy logic controller and / or as a neural network. The person skilled in the art will further recognize that the actuating signal 22 for the blower 3 can be, for example, a pulse-width-modulated signal. According to an alternative embodiment, the control signal 22 for the blower 3 is an alternating current generated by a (matrix) converter. The frequency of the Alternating current corresponds (is proportional to) the speed of the blower 3.

If the system is designed to be fail-safe, the setpoint positions of the actuators 4 must be determined to be fail-safe. This is done, for example, by means of two position sensors (angle encoder, stroke transmitter, light barrier etc).

The optional (electronic) filter 36 smoothes the measurement signal. The filter 36 may be adaptive in one embodiment. For this purpose, the measurement signal is averaged over a long, maximum integration time (for example, two seconds to five seconds) as a comparison value with a moving average filter. If a measured value deviates from the mean value of the measured values or, alternatively, from the desired value 32 outside of a predetermined band, a setpoint jump is assumed. The measured value is now used directly as the actual value. Consequently, the control loop immediately reacts with the sampling rate of the control loop.

If the measured values lie within the defined band again, the integration time is incrementally increased with (every) sampling of the control loop. The value integrated in this way is used as the actual value. This takes place until the maximum integration time has been reached. The control loop is now considered stationary. The value thus averaged is now used as the actual value. The disclosed method enables an accurate stationary measurement signal with maximum dynamics.

According to one embodiment, in a control and / or monitoring device 16 designed as a microcontroller, the assignment of the positions 23 of the at least one air actuator 4 and the setpoint 32 for the mass flow sensor 13 as a function of the flow 5 (particle flow and / or or mass flow) through channel 11. In a particularly preferred embodiment, the Function tabulated. Intermediate values between the points defined by the table are linearly interpolated. Alternatively, intermediate values between the points defined by the table are interpolated by a polynomial over several adjacent values and / or over (cubic) splines. The person skilled in the art recognizes that other forms of interpolation can also be realized.

According to one embodiment, the regulating and / or control and / or monitoring device 16 has a reading device for identification by means of radiofrequent waves (RFID reading device). The regulating and / or control and / or monitoring device 16 is designed to read in operating parameters such as formulas (of section-defined polynomials) and / or like the aforementioned tables from a so-called (RFID) transponder on the basis of the reading device. The operating parameters are then stored in the (non-volatile) memory of the control and / or control and / or monitoring device 16. If required, they can be read out and / or used by a microprocessor.

In the following table, in addition to the setpoint value for the mass flow sensor 13 in the side channel 28, the values for the motorized flap 4 are shown. Furthermore, in the following table, the values for a further (motor-adjustable) flap or valve acting on the flow 5 (particle flow and / or mass flow) through channel 11 are shown. Depending on the embodiment, further actuators can be added in the form of columns. According to a specific embodiment, none of the flaps are present. This eliminates the corresponding columns. Flow 5 (particle flow and / or mass flow) through channel 11 (motor adjustable) flap or valve 4 (motor adjustable) further flap or further valve Set point 32 for flow 15 (particle flow and / or mass flow) through side channel 28 Value 1 Angle 1 Angle 1 Flow value 1 Value 2 Angle 2 Angle 2 Flow value 2 ... ... ... ... Value n Angle n Angle n Flow value n

If a certain value of the flow 5 (particle flow and / or mass flow) is to be set by channel 11, then the two values between which the desired value of the flow 5 lies are searched in the table. Subsequently, the position between the two values is determined. If the desired value of the flow 5 is an amount s% between the values k and k + 1 (1 ≦ k <n), then the angle of the (motor-adjustable) flap or valve 4 at a distance of s% between the angles k and k + 1 approached. The same applies to the angle (position) of the (motor-adjustable) further flap or the further valve. The flow value 5 may be indicated as an absolute number and / or relative to a value, preferably to the flow 5 at the highest power value. The flow value is then stored, for example, as a percentage of the flow 5 of the highest power value.

According to a further embodiment, instead of the aforementioned table, the positions of the at least one air actuator 4 are deposited as a polynomial as a function of the flow 5 (particle flow and / or mass flow) through channel 11. According to yet another embodiment, the positions of the at least one air actuator 4 are deposited as sections defined functions as a function of the flow 5 (particle flow and / or mass flow) through channel 11. According to yet another embodiment, the positions of the at least one air actuator 4 are deposited as (valve) opening curve (s).

In order to exclude a wrongly assumed value of the air flow, for example, due to failed components and / or defective leads etc, the design can be made fail-safe. This means that the at least one actuator 4 monitored from the above table can approach its position. This also means that the flow 15 (particle flow and / or mass flow) is detected by the side channel 28 safety-oriented.

If a predetermined flow 5 is to be adjusted by channel 11, the correct combination of positions of at least one actuator 4 and flow 15 is determined by side channel 28 and started. This happens even if the characteristic curve of individual actuators is not linear. With a sequence of characteristic points with a sufficiently close distance from one another, a (nearly) linear scale for the flow rate 5 is obtained. This is of great advantage for the operation of the combustion device.

In the table above, you can also record the position of the actuator 9, with the fuel flow rate 6 is set to record. This position can be both the position of a flap and / or the position or opening of a fuel valve and / or a measured flow value of the fuel flow rate 6.

Thus, for a preset air ratio λ, the correct fuel flow 6 has always been assigned to each air flow 5. The air flow rate 5 is thus synonymous with the power value, since funded fuel flow rate 6 and air flow rate 5 are firmly connected. Conversely, one can set the fuel flow rate 6 or the position of the fuel actuator 9 to adjust the power. In the table, one can determine the assigned air flow rate 5 on the basis of the characteristic curve and / or on the basis of the linear interpolation between the table values. The positions of the air actuators 4 and the desired value of the mass flow 32 in air can be as above described in table form interpolated and / or determined by another mathematical assignment.

According to one embodiment, the values for the flow 5 in the control and / or control and / or monitoring device 16 are indicated absolutely. According to another embodiment, the values for the flow 5 in the control and / or control and / or monitoring device 16 are indicated relative to a specific value of the flow. The values for the flow in the control and / or control and / or monitoring device 16 are preferably indicated relative to the maximum throughput 5 (in air) at maximum power.

In a further particularly preferred embodiment, the fuel flow rate 6 is not directly associated with the air flow rate 5. In this embodiment, the position of the fuel flap or the fuel valve 9 is assigned to the fuel flow rate 6 in a second functional assignment. This can be done over a table as in the case of air, as shown below. Fuel throughput 6 (motor adjustable) fuel flap or fuel valve 9 Value 1 Angle 1 Value 2 Angle 2 ... ... Value n Angle n

Between the individual values, you can also interpolate (linearly). Of course, the assignment can also take place via polynomials which are defined at least in sections.

The fuel flow rate 6 stored in the table is an absolute or relative value for an air ratio λ ₀ . The fuel flow rate 6 stored in the table is also one absolute or relative value for the fuel present in the fuel supply during an adjustment process. The air ratio λ ₀ is usually specified during the setting process. The functional assignment takes place during the mentioned setting process. In this case, the fuel flow rate 6 of the delivered fuel at a defined air ratio λ _{0 is} assigned to the air flow rate 5 defined in the linearized scale. Thus, the position of the fuel actuator 9 is mapped to a linear scale of the fuel flow rate 6.

The known on a linear scale air flow rate 5 with the symbol V̇ _L , and known on a linear scale fuel flow rate 6 with the symbol V̇ _G then depend on the equation V̇ _L = λ · L _min · V̇ _G together. L _min is the minimum air requirement of the fuel, ie the ratio of air flow rate 5, which is necessary under conditions of stoichiometry, in relation to the fuel flow rate 6. L _min is a variable which depends on the composition of the fuel or type of fuel.

zwischen dem Luftdurchsatz während des Einstellvorgangs V̇ _L0 , der Luftzahl während des Einstellvorgangs λ ₀, dem Mindestluftbedarf während des Einstellvorgangs L _min0 und dem Brennstoffdurchsatz während Einstellvorgangs V̇ _G0. Am maximalen Leistungspunkt besteht der Zusammenhang $${\dot{V}}_{L0\mathit{max}}={\lambda }_0\cdot L_{\mathit{min}0}\cdot {\dot{V}}_{G0\mathit{max}}$$

mit dem Luftdurchsatz am maximalen Leistungspunkt V̇ _L0max und mit dem Brennstoffdurchsatz V̇ _G0max am maximalen Leistungspunkt. Jeweils im Verhältnis zum Luftdurchsatz 5 bzw Brennstoffdurchsatz 6 bei maximaler Leistung, wie während des Einstellvorgangs festgelegt, ergibt sich für jeden Betriebszustand der Zusammenhang $$\frac{{\dot{V}}_L}{{\dot{V}}_{L0\mathit{max}}}=\frac{\lambda }{{\lambda }_0}\cdot \frac{L_{\mathit{min}}}{L_{\mathit{min}0}}\cdot \frac{{\dot{V}}_G}{{\dot{V}}_{G0\mathit{max}}}$$

für den Luftdurchsatz 5 in Abhängigkeit vom Brennstoffdurchsatz 6. Mit dem jeweiligen relativen Wert vom Luftdurchsatz 5 $\frac{{\dot{V}}_L}{{\dot{V}}_{L0\mathit{max}}}={\dot{V}}_{\mathit{RL}}$

und dem relativen Wert vom Brennstoffdurchsatz 6 $\frac{{\dot{V}}_G}{{\dot{V}}_{G0\mathit{max}}}={\dot{V}}_{\mathit{RG}}$

wird der Zusammenhang: $${\dot{V}}_{\mathit{RL}}=\frac{\lambda }{{\lambda }_0}\cdot \frac{L_{\mathit{min}}}{L_{\mathit{min}0}}\cdot {\dot{V}}_{\mathit{RG}}$$

During adjustment, the fuel composition has the minimum _{air requirement} L _min0 . This is the context during the setting process $${\dot{V}}_{L0}={\lambda }_0\cdot L_{\mathit{min}0}\cdot {\dot{V}}_{G0}$$

between the air flow rate during the setting process V̇ _{L 0} , the air ratio during the setting process λ ₀ , the minimum air requirement during the setting process L _{min 0} and the fuel flow rate during the setting process V̇ _{G 0} . The maximum power point is related $${\dot{V}}_{L0\mathit{Max}}={\lambda }_0\cdot L_{\mathit{min}0}\cdot {\dot{V}}_{G0\mathit{Max}}$$

with the air flow at the maximum power point V̇ _{L 0 max} and with the fuel flow V̇ _{G 0 max} at the maximum power point. In each case in relation to the air flow 5 or fuel throughput 6 at maximum power, as during the Set setting, resulting for each operating condition of the context $$\frac{{\dot{V}}_L}{{\dot{V}}_{L0\mathit{Max}}}=\frac{\lambda }{{\lambda }_0}\cdot \frac{L_{\mathit{min}}}{L_{\mathit{min}0}}\cdot \frac{{\dot{V}}_G}{{\dot{V}}_{G0\mathit{Max}}}$$

for the air flow rate 5 as a function of the fuel flow rate 6. With the respective relative value of the air flow rate 5 $\frac{{\dot{V}}_L}{{\dot{V}}_{L0\mathit{Max}}}={\dot{V}}_{\mathit{RL}}$

and the relative value of fuel flow 6 $\frac{{\dot{V}}_G}{{\dot{V}}_{G0\mathit{Max}}}={\dot{V}}_{\mathit{RG}}$

becomes the context: $${\dot{V}}_{\mathit{RL}}=\frac{\lambda }{{\lambda }_0}\cdot \frac{L_{\mathit{min}}}{L_{\mathit{min}0}}\cdot {\dot{V}}_{\mathit{RG}}$$

If one has conditions such as the adjustment with respect to air ratio λ and gas composition, then V̇ _RL = V̇ _RG . Thus, the relative air flow rate is equal to the relative fuel flow rate as determined during the tuning process relative to the maximum values.

wird. Dann muss der Brennstoffdurchsatz 6 um den Faktor 1/F erhöht werden, falls die Luftzahl λ beim gleichen Wert bleiben soll. Mit anderen Worten muss bei einer Änderung der Zusammensetzung des Brennstoffs, bei der sich der Mindestluftbedarf L_min um den Faktor F erhöht, für gleichbleibende Luftzahl λ der Brennstoffdurchsatz 6 um den Faktor F gegenüber den Einstellbedingungen verringert werden. Alternativ kann auch der Luftdurchsatz 5 um den Faktor F erhöht werden.For example, if the gas composition changes, so does the minimum air requirement L _min , so that $\frac{L_{\mathit{min}}}{L_{\mathit{min}0}}=F\ne 1$

becomes. Then the fuel flow rate 6 must be increased by a factor of 1 / F if the air ratio λ is to remain at the same value. In other words, in the case of a change in the composition of the fuel at which the minimum air requirement L _min increases by a factor F, the fuel throughput 6 must be reduced by a factor F compared to the setting conditions for a constant air ratio λ. Alternatively, the air flow rate 5 can be increased by a factor of F.

If you want to change the air ratio λ by a factor F, also the fuel flow rate 6 must be reduced by a factor of F or the air flow rate 5 increased by a factor of F.

Both values, air flow 5 and fuel flow 6, are each in a nearly linear scale. Thus, it is sufficient to know the factor F for a power point in order to calculate the fuel flow rate 6 for each power point from the values stored at the setting if the air flow rate 5 is used as the power quantity. When the fuel flow rate 6 is used as the power quantity 5, the correct air flow rate 5 can be equivalently calculated for each power point.

With the respective assignments of the positions for the air actuators 4 and for the desired value 32 in the outflow channel to the air flow 5 and the assignment of the position of the fuel actuator 9 to the fuel flow rate 6, the corresponding positions can then be set for a given power value. The delivery rate of the blower 3 can be adjusted accordingly.

The current value for the fuel flow rate 6 is thus assigned to the current value of the air flow rate 5 via a fixed factor. A base factor is determined during adjustment as shown above. For a direct representation of air flow 5 or fuel throughput 6, it is λ ₀ · L _{min 0} . For a representation of air flow rate 5 or fuel throughput 6 relative to the respective maximum values from the adjustment process, it is preferably set to one.

If the conditions change compared to the settings with regard to the air ratio λ or the composition of the fuel by a factor F, the air flow rate 5 or the fuel flow rate 6 are adjusted by the factor 1 / F compared to the stored setting values.

If the factor F is determined in a further embodiment with changing compositions of the fuel by means of a λ control, this value also applies to all Credits. Using the linear scales for air flow 5 and fuel flow 6, the power can be changed much faster than the λ control would allow. Thus, λ-control and power adjustment are decoupled from each other. This is very advantageous because, due to the system running times or the time constants of the system, the λ control loop controls much slower environmental changes than comparatively the power is to be changed. Typical environmental changes are air temperature, air pressure, fuel temperature and / or fuel type. Such changes usually occur so slowly that the λ-loop is sufficiently fast for this.

A λ-control can be realized with the help of an O ₂ sensor in the exhaust gas. The person skilled in the art can easily calculate the air ratio λ from the derived measured value of an O ₂ sensor in the exhaust gas.

The use of the flow sensor 13 is a particular advantage in the presented method FIG. 6 Sketched control loop density fluctuations of the air 5 are corrected due to temperature change and / or barometric pressure fluctuations. Thus, there is already a compensated value for the linearized scale of the air flow 5. The λ control loop only needs to compensate for fluctuations in the gas composition.

If the air flow rate 5 is selected as the power variable, the fuel throughput 6 is readjusted via the λ control loop as the composition of the fuel changes, so that the burner output remains virtually constant. The reason for this is that the energy content for most commonly used fuels (approximately) linearly correlated with the minimum air requirement L _min .

The control loop after FIG. 6 also compensates for errors in the blower and / or regulates these. Errors in the fan 3 are for example Increased slippage of the fan wheel and / or errors in the (electronic) control. Furthermore, grosser errors of the blower 3, which can no longer be corrected, can be revealed. For this purpose, it is detected whether the drive speed 22 of the blower 3 is outside a specified for each flow 5 through the channel 11 band. For this purpose, upper and lower limit values of the rotational speed and / or the drive signals 22 of the blower 3 are advantageously stored in the abovementioned table for given flows 5 (particle flow and / or mass flow) through the channel 11. The values are particularly preferably stored in a (non-volatile) memory of the control and / or control and / or monitoring device 16. According to a further embodiment, the deposit of upper and lower limit values for the rotational speed and / or the drive signals 22 of the blower 3 takes place on the basis of functions (section-wise defined) such as straight lines and / or polynomials.

The person skilled in the art recognizes that the flow 5 through channel 11 can also be regulated by means of another actuator. For example, can be in FIG. 6 replace the control of the blower 3 by a regulation of the (motorized) flap 4. For each set point 32 of the flow 5 all actuators including the blower 3 are set in this case, with the exception of the regulated position of the (motorized) flap or the valve 4 to a fixed setpoint position. The respective desired position for a given flow 5 (particle flow and / or mass flow) through channel 11 is stored in the (non-volatile) memory of the control and / or control and / or monitoring device 16. The positions of the actuators and the set point 32 of the flow 15 through the side channel 28 are also deposited here as a function of the flow 5 through channel 11, as already mentioned above. The interpolation is done as stated above.

For the table above, the regulation of the (motorized) flap or valve 4 means that the position of that Actuator is replaced by the speed of the fan 3. An adapted table is shown below: Flow 5 (particle flow and / or mass flow) through channel 11 Blower 3 (motor adjustable) further flap or further valve Set point 32 for flow 15 (particle flow and / or mass flow) through side channel 28 Value 1 Speed 1 Angle 1 Flow value 1 Value 2 Speed 2 Angle 2 Flow value 2 ... ... ... ... Value n Speed n Angle n Flow value n

If the system has to be designed for fail-safe operation, the setpoint positions of the actuators must be determined with fail-safe. This is done, for example, with the aid of two position sensors (angle sensor, stroke transmitter, speed sensor, Hall sensor, etc.). By means of the controller 37, the (motor-adjustable) flap 4 or the valve is adjusted until the signal 21 of the mass flow sensor 13 in the side channel 28 reaches the value stored in the memory for the required flow. According to a particular embodiment, the rotational speed of the blower 3 can not be changed. The flow 5 through channel 11 is adjusted exclusively via the (motor-adjustable) further flap or the additional valve.

Also in both above Ausfürungsformen with regulation of the air flow rate 5 on the (motorized) flap 4, the flap position 9 can be taken directly fixed in the table. However, it is also possible to form a second assignment for the amount of fuel 6 here. The assignment of the linearized scale from the fuel flow rate 6 to the linearized scale of the air flow rate 5 is determined by a factor as described above.

Portions of a controller or method according to the present disclosure may be implemented as hardware, as a software module executed by a computing unit, or a cloud computer, or as a combination of the foregoing. The software may include firmware, a hardware driver running within an operating system, or an application program. Thus, the present disclosure also relates to a computer program product that incorporates the features of this disclosure or performs the necessary steps. When implemented as software, the functions described may be stored as one or more instructions on a computer-readable medium. Some examples of computer-readable media include random access memory (RAM), magnetic random access memory (MRAM), read only memory (ROM), flash memory, electronically programmable ROM (EPROM), electronically programmable and erasable ROM (EEPROM), arithmetic unit, register Hard disk, a removable storage device, optical storage, or any suitable medium that can be accessed by a computer or other IT devices and applications.

• Anfordern eines Durchflusses 5 eines Fluids durch den Zufuhrkanal 11,
• Zuordnen des angeforderten Durchflusses 5 durch den Zufuhrkanal 11 auf eine (einen Wert der) Stellung des mindestens einen ersten Aktors 4, 3,
• Generieren eines ersten Signals 23, 22 für den mindestens einen ersten Aktor 4, 3, wobei das generierte erste Signal 23, 22 eine Funktion der dem angeforderten Durchfluss 5 durch den Zufuhrkanal 11 zugeordneten Stellung des mindestens einen ersten Aktors 4, 3 ist,
• Ausgeben des generierten ersten Signals 23, 22 an den mindestens einen ersten Aktor 4, 3,
• Generieren eines zweiten Signals 21 durch den Massenstromsensor 13, wobei das zweite Signal 21 eine Funktion eines Durchflusses 15 durch den Seitenkanal 28 ist,
• Verarbeiten des durch den Massenstromsensor 13 generierten zweiten Signals 21 zu einem Ist-Wert des Durchflusses 15 durch den Seitenkanal 28,
• Verarbeiten des angeforderten Durchflusses 5 durch den Zufuhrkanal 11 zu einem Soll-Wert 32 des Durchflusses 15 durch den Seitenkanal 28,
• Generieren eines Regelsignals 22, 23 durch den Regler 37 für den mindestens einen zweiten Aktor 3, 4 als Funktion des Ist-Wertes des Durchflusses durch den Seitenkanal 28 und als Funktion des Soll-Wertes 32 des Durchflusses 15 durch den Seitenkanal 28,
• Ausgeben des generierten Regelsignals 22, 23 an den mindestens einen zweiten Aktor 3, 4.

In other words, the present disclosure teaches a method for controlling a burner device with a mass flow sensor 13 in a side channel 28 of a supply channel 11 of the burner device, a controller 37, at least a first acting on the supply channel 11 actuator 4, 3 and at least a second on the Feed channel 11 acting actuator 3, 4, wherein the at least one first actuator 4, 3 and the at least one second actuator 3, 4 (respectively) are designed to receive signals, the method comprising the steps:

• Requesting a flow 5 of a fluid through the supply channel 11,
• Assigning the requested flow 5 through the supply channel 11 to one (a value of) position of the at least one first actuator 4, 3,
• Generating a first signal 23, 22 for the at least one first actuator 4, 3, the generated first signal 23, 22 being a function of the position of the at least one first actuator 4, 3 assigned to the requested flow 5 through the supply channel 11,
• Outputting the generated first signal 23, 22 to the at least one first actuator 4, 3,
• Generating a second signal 21 by the mass flow sensor 13, the second signal 21 being a function of a flow 15 through the side channel 28,
• Processing the second signal 21 generated by the mass flow sensor 13 to an actual value of the flow 15 through the side channel 28,
• Processing the requested flow 5 through the supply channel 11 to a target value 32 of the flow 15 through the side channel 28,
• Generating a control signal 22, 23 by the controller 37 for the at least one second actuator 3, 4 as a function of the actual value of the flow through the side channel 28 and as a function of the desired value 32 of the flow 15 through the side channel 28,
• Outputting the generated control signal 22, 23 to the at least one second actuator 3, 4.

The side channel 28 and the supply channel 11 of the burner device are preferably in fluid communication. The at least one second actuator 3, 4 is preferably designed to receive a control signal 37. The flow 15 through the side channel 28 is preferably a mass flow (of a gaseous fluid). The flow 5 through the feed channel 11 is preferably a mass flow (of a gaseous fluid). The at least one first actuator 4, 3 and the at least one second actuator 3, 4 preferably act serially (in series) on the supply channel 11. The at least one first actuator 4, 3 and the at least one second actuator 3, 4 are preferably in series (in the supply channel 11) arranged.

The present disclosure further teaches the aforesaid method, wherein the processing of the requested flow 5 through the supply channel 11 to a target value 32 of the flow 15 through the side channel 28 reversibly unambiguously allocates (the requested flow 5 through the supply channel 11 to the target Value 32 of the flow 15 through the side channel 28).

The present disclosure further teaches one of the aforementioned methods, wherein the generation of a control signal (by the controller 37) for the at least one second actuator 3, 4 takes place on the basis of a proportional-integral controller 37.

According to a specific embodiment, the proportional-integral controller 37 is a self-adaptive controller.

The present disclosure further teaches one of the aforementioned methods, wherein the generation of a control signal (by the controller 37) for the at least one second actuator 3, 4 takes place on the basis of a proportional-integral-derivative controller 37.

According to a specific embodiment, the proportional integral derivative controller 37 is a self-adaptive controller.

The present disclosure further teaches one of the aforementioned methods, wherein the at least one second actuator of the burner device comprises an adjustable speed blower 3, wherein the variable speed blower 3 comprises a drive, and wherein preferably the blower 3 is arranged in the supply channel 11 of the burner device ,

The present disclosure further teaches one of the aforementioned methods, wherein the generated control signal 22, 23 to the at least one second actuator 3, 4 is a pulse width modulated signal.

The present disclosure further teaches one of the aforementioned methods, wherein the generated control signal 22, 23 to the at least one second actuator 3, 4 is an inverter signal having a frequency which corresponds to the rotational speed of the blower 3.

The present disclosure furthermore teaches one of the aforementioned methods, wherein the at least one first actuator of the burner device comprises a motor-adjustable flap 4 with a drive and preferably the motor-adjustable flap 4 is arranged in the feed channel 11 of the burner device.

The present disclosure further teaches one of the aforementioned methods, wherein a difference between the setpoint value 32 and the actual value 21 is formed by the controller 37 for the at least one second actuator 3, 4 when the control signal 22, 23 is generated.

The present disclosure further teaches one of the aforementioned methods, wherein processing the second signal 21 generated by the mass flow sensor 13 comprises filtering the second signal 21 generated by the mass flow sensor 13.

The present disclosure further teaches one of the aforementioned methods, wherein the processing of the second signal 21 generated by the mass flow sensor 13 comprises filtering with a 3dB threshold of the second signal 21 generated by the mass flow sensor 13, wherein the 3dB Threshold of the filtering is set up so that fluctuations of the signal 21 of a frequency greater than 1 Hz, preferably greater than 10 Hz, are integrated.

The present disclosure further teaches one of the aforementioned methods, wherein the assignment of the requested flow 5 through the supply channel 11 to one (a value of) position of the at least one first actuator 4, 3 is based on a predetermined table, in which values of the requested flow 5 Values of the positions of the at least one first actuator 4, 3 are assigned by the supply channel 11.

The present disclosure further teaches one of the aforementioned methods, wherein the assignment of the requested flow 5 through the supply channel 11 to one (a value of) position of the at least one first actuator 4, 3 based on a predetermined table followed by interpolation, wherein in the given Values of the positions of the at least one first actuator 4, 3, preferably also values of the positions of each of the at least one second actuator 3, 4 different actuator assigned.

The present disclosure further teaches one of the aforesaid methods, wherein the assignment of the requested flow 5 through the supply channel 11 to one (one value of) position of the at least one first actuator 4, 3 is based on a predetermined (sectionally defined) function (polynomial), in which values of the requested flow 5 values of the positions of the at least one first actuator 4, 3, preferably also values of the positions of each actuator different from the at least one second actuator 3, 4, are assigned by the supply channel 11.

The present disclosure further teaches one of the aforementioned methods, wherein when generating the control signal 22, 23 (by the controller 37) for the at least one second actuator 3, 4, the amount of a difference between the setpoint value 32 and actual value 21 is formed and wherein the amount of the difference between target value 32 and actual value 21 is compared with a predetermined threshold value, and
wherein preferably the threshold value is a function of the desired value 32.

• Vergleichen des generierten Regelsignals 22 - 23 mit einem (vorgegebenen) oberen Schwellwert und / oder mit einem (vorgegebenen) unteren Schwellwert,
• Generieren eines Signals 24 - 25 zur Abschaltung der Brennereinrichtung, falls das generierte Regelsignal 22 - 23 über dem (vorgegebenen) oberen Schwellwert oder unter dem (vorgegebenen) unteren Schwellwert liegt,
• Ausgeben des generierten Signals 24 - 25 zur Abschaltung der Brennereinrichtung an das mindestens eine Sicherheits-Absperrventil 7 - 8, falls das generierte Regelsignal 22 - 23 über dem (vorgegebenen) oberen Schwellwert oder unter dem (vorgegebenen) unteren Schwellwert liegt.

The present disclosure further teaches one of the two aforementioned methods, wherein the burner device additionally comprises a fuel supply channel 38 with at least one safety shut-off valve 7 - 8 for closing the fuel supply channel 38, the at least one safety shut-off valve 7 - 8 being formed, a signal 24 To receive 25 for switching off the burner device and to close the fuel supply channel 38 in response to the receipt of a signal 24 - 25 for switching off the burner device, the method additionally comprising the steps:

• Comparing the generated control signal 22-23 with a (predetermined) upper threshold and / or with a (predetermined) lower threshold,
• Generating a signal 24-25 for switching off the burner device, if the generated control signal 22-23 is above the (predetermined) upper threshold value or below the (predetermined) lower threshold value,
• Outputting the generated signal 24 - 25 for switching off the burner device to the at least one safety shut-off valve 7 - 8, if the generated control signal 22 - 23 is above the (predetermined) upper threshold or below the (predetermined) lower threshold.

• Vergleichen des Ist-Wertes des Durchflusses 15 durch den Seitenkanal 28 mit einem (vorgegebenen) oberen Schwellwert und / oder mit einem (vorgegebenen) unteren Schwellwert,
• Generieren eines Signals 24 - 25 zur Abschaltung der Brennereinrichtung, falls der Ist-Wert des Durchflusses 15 durch den Seitenkanal 28 über dem (vorgegebenen) oberen Schwellwert oder unter dem (vorgegebenen) unteren Schwellwert liegt,
• Ausgeben des generierten Signals 24 - 25 zur Abschaltung der Brennereinrichtung an das mindestens eine Sicherheits-Absperrventil 7 - 8, falls der Ist-Wert des Durchflusses 15 durch den Seitenkanal 28 über dem (vorgegebenen) oberen Schwellwert oder unter dem (vorgegebenen) unteren Schwellwert liegt.

The present disclosure further teaches one of the two aforementioned methods, wherein the burner device additionally comprises a fuel supply channel 38 with at least one Safety shut-off valve 7 - 8 for closing the fuel supply channel 38, wherein the at least one safety shut-off valve 7 - 8 is adapted to receive a signal 24 - 25 for switching off the burner device and in response to the receipt of a signal 24 - 25 for shutdown the burner device to close the fuel supply channel 38, the method additionally comprising the steps:

• Comparing the actual value of the flow rate 15 through the side channel 28 with a (predetermined) upper threshold value and / or with a (predetermined) lower threshold value,
• Generating a signal 24-25 for switching off the burner device, if the actual value of the flow rate 15 through the side channel 28 above the (predetermined) upper threshold or below the (predetermined) lower threshold,
• Outputting the generated signal 24 - 25 for switching off the burner device to the at least one safety shut-off valve 7 - 8, if the actual value of the flow through the side channel 28 is above the (predetermined) upper threshold value or below the (predetermined) lower threshold value ,

The present disclosure further teaches the aforementioned methods, wherein the (predetermined) lower threshold and / or (predetermined) upper threshold is a function of the requested flow 5 through the feed channel 11.

The present disclosure further teaches the aforementioned methods, wherein the controller 37 comprises a (non-volatile) memory and the (predetermined) lower threshold and / or (predetermined) upper threshold are stored in the memory of the controller 37. The controller 37 is preferably designed to read the (predetermined) lower threshold value and / or the (predetermined) upper threshold value from the (non-volatile) memory.

• Anfordern eines Durchflusses 6 eines Brennstoffs durch den Brennstoffzufuhrkanal 38,
• Zuordnen des Durchflusses 6 des Brennstoffs durch den Brennstoffzufuhrkanal 38 auf eine Stellung des mindestens einen Brennstoff-Aktors 9,
• wobei vorzugsweise das Zuordnen des Durchflusses des Brennstoffs 6 durch den Brennstoffzufuhrkanal 38 auf eine Stellung des mindestens einen Brennstoff-Aktors 9 anhand einer Tabelle (idealerweise mit anschliessender Interpolation) und / oder anhand einer (zumindest abschnittsweise definierten) polynomischen Funktion erfolgt, in welcher Werten des angeforderten Durchflusses 6 durch den Brennstoffzufuhrkanal 38 Werte der Stellungen des mindestens einen Brennstoff-Aktors 9 zugeordnet sind,
• Generieren eines Brennstoff-Signals 26 für den mindestens einen Brennstoff-Aktor 9, wobei das generierte Brennstoff-Signal 26 eine Funktion der dem angeforderten Durchfluss 6 durch den Brennstoffzufuhrkanal 38 zugeordneten Stellung des mindestens einen Brennstoff-Aktors 9 ist,
• Ausgeben des generierten Brennstoff-Signals 26 an den mindestens einen Brennstoff-Aktor 9 und vorzugsweise
• Stellen des mindestens einen Brennstoff-Aktors 9 entsprechend dem ausgegebenen Brennstoff-Signal 26.

The present disclosure further teaches one of the foregoing methods, wherein the combustor further comprises a fuel supply passage 38 and at least one fuel actuator 9 acting on the fuel supply passage 38, and the fuel actuator 9 is configured to receive a (fuel) signal 26, the method additionally comprising the steps:

• Requesting a flow 6 of a fuel through the fuel supply channel 38,
• Assigning the flow 6 of the fuel through the fuel supply channel 38 to a position of the at least one fuel actuator 9,
• wherein preferably the assignment of the flow of the fuel 6 through the fuel supply channel 38 to a position of the at least one fuel actuator 9 based on a table (ideally with subsequent interpolation) and / or based on a (at least partially defined) polynomial function, in which values of requested flow 6 are assigned by the fuel supply channel 38 values of the positions of the at least one fuel actuator 9,
• Generating a fuel signal 26 for the at least one fuel actuator 9, the generated fuel signal 26 being a function of the position of the at least one fuel actuator 9 associated with the requested flow 6 through the fuel supply channel 38,
• Outputting the generated fuel signal 26 to the at least one fuel actuator 9, and preferably
• Set the at least one fuel actuator 9 according to the output fuel signal 26th

The present disclosure further teaches the aforementioned methods, wherein the controller 37 comprises a (non-volatile) memory and the table and / or the polynomial function are stored in the memory of the controller 37. The controller 37 is preferably formed, the table and / or the read polynomial function from the (non-volatile) memory.

• Zuordnen der Stellung(en) jedes vom mindestens einen zweiten Aktor 3, 4 der Brennereinrichtung verschiedenen Aktors 4, 3, 9 zu einem Durchfluss 5 eines Fluids durch den Zufuhrkanal 11 anhand der universellen Tabelle oder einer zumindest abschnittsweise definierten) universellen polynomischen Funktion.

The present disclosure further teaches the aforementioned method, wherein the assignment of the flow of the fuel 6 through the fuel supply channel 38 to values of the fuel actuator 9 based on a universal table (ideally with subsequent interpolation) and / or based on a (at least partially defined) universal polynomial function , the method additionally comprising the step:

• Assigning the position (s) of each of the at least one second actuator 3, 4 of the burner means different actuator 4, 3, 9 to a flow 5 of a fluid through the supply channel 11 based on the universal table or at least partially defined) universal polynomial function.

The present disclosure further teaches the aforementioned methods, wherein the controller 37 comprises a (non-volatile) memory and the universal table and / or the universal polynomial function are stored in the memory of the controller 37. The controller 37 is preferably designed to read the universal table and / or the universal polynomial function from the (non-volatile) memory.

• Zuordnen eines Durchflusses 6 eines Brennstoffs durch den Brennstoffzufuhrkanal 38 zu einem Durchfluss 5 eines Fluids durch den Zufuhrkanal 11 anhand eines konstanten Faktors zwischen dem Durchfluss 6 eines Brennstoffs durch den Brennstoffzufuhrkanal 38 und dem Durchfluss 5 eines Fluids durch den Zufuhrkanal 11.

The present disclosure further teaches one of the aforementioned methods, the method additionally comprising the step:

• Associating a flow 6 of a fuel through the fuel supply passage 38 to a flow 5 of a fluid through the supply passage 11 based on a constant factor between the flow 6 of a fuel through the fuel supply passage 38 and the flow 5 of a fluid through the supply passage 11.

• Generieren eines Signals durch die Sonde im Abgaskanal 30,
• Übermitteln des Signals aus der Sonde im Abgaskanal 30 an die λ-Regelung,
• Bestimmen (durch die λ-Regelung) eines veränderlichen Faktors zwischen dem Durchfluss eines Brennstoffs 6 durch den Brennstoffzufuhrkanal 38 und dem Durchfluss 5 eines Fluids durch den Zufuhrkanal 11 als Funktion des Signals aus der Sonde im Abgaskanal 30,
• (Übermitteln des bestimmten veränderlichen Faktors an den Regler 37,)
• Zuordnen (durch die λ-Regelung und / oder durch den Regler 37) eines Durchflusses 6 eines Brennstoffs durch den Brennstoffzufuhrkanal 38 zu einem Durchfluss 5 eines Fluids durch den Zufuhrkanal 11 anhand des bestimmten veränderlichen Faktors.

The present disclosure further teaches one of the aforementioned methods, the burner device additionally comprising an exhaust duct 30 with a probe in the exhaust duct 30 and a λ-controller configured to receive signals from the probe of the exhaust duct 30, the method additionally comprising the steps:

• Generating a signal through the probe in the exhaust duct 30,
• Transmitting the signal from the probe in the exhaust duct 30 to the λ-control,
• Determining (by the λ control) a variable factor between the flow of a fuel 6 through the fuel supply passage 38 and the flow 5 of fluid through the supply passage 11 as a function of the signal from the probe in the exhaust passage 30,
• (Transmitting the determined variable factor to the controller 37,)
• Associating (by the λ-controller and / or by the controller 37) a flow 6 of a fuel through the fuel supply passage 38 to a flow 5 of a fluid through the supply passage 11 based on the determined variable factor.

The λ control of the burner device is preferably integrated in the controller 37.

The signal generated by the probe in the exhaust passage 30 is preferably a function of an air ratio of a fluid flow in the exhaust passage and / or a function of an oxygen content of a fluid flow in the exhaust passage.

The probe in the exhaust duct 30 is preferably a λ-probe and / or an O ₂ probe (oxygen probe).

• Bestimmen einer Leistung der Brennereinrichtung auf Grundlage des Soll-Werts 32 des Reglers 37 und / oder auf Grundlage des Werts des angeforderten Durchflusses 5 durch den Zufuhrkanal 11.

The present disclosure further teaches one of the aforementioned methods, the method additionally comprising the step:

• Determining a power of the burner device based on the desired value 32 of the controller 37 and / or based on the value of the requested flow 5 through the supply channel 11th

The present disclosure further teaches a non-transitory computer-readable storage medium that stores an instruction set for execution by at least one processor that, when executed by a processor, performs one of the aforementioned methods.

The above refers to individual embodiments of the disclosure. Various changes may be made to the embodiments without departing from the basic idea and without departing from the scope of this disclosure. The subject matter of the present disclosure is defined by its claims. Various changes can be made without departing from the scope of the following claims.

reference numeral

1

burner

2

Heat consumer (heat exchanger)

3

fan

4

(motor adjustable) flap or valve

5

Flow (particle and / or mass flow) or flow through channel 11 (air flow rate)

6

Fluid flow of a combustible fluid (fuel flow rate)

7, 8

safety valve

9

(motor adjustable) flap or valve

10

exhaust flow

11

Feed channel (air channel)

12

Connection point, congestion probe

13

Mass flow sensor

14

Flow resistance element (aperture)

15

Flow or flow in the side channel

16

Control and / or control and / or monitoring device

17

mixing device

18, 19, 20

Flow resistance elements (diaphragms)

21 - 26

signal lines

27

air intake

28

side channel

29

bypass channel

30

exhaust duct

31

Openings of the jam probe

32

Target value for regulation

33

Target-deviation

34

measuring arrangement

35

differencing

36

filter

37

Controller, for example a PI (D) controller

38

Fuel supply channel

Claims (15)

Method for controlling a burner device with a mass flow sensor (13) in a side channel (28) of a feed channel (11) of the burner device, a regulator (37), at least one first actuator (4, 3) acting on the feed channel (11) and at least one second actuator (3, 4) acting on the supply channel (11), the at least one first actuator (4, 3) and the at least one second actuator (3, 4) being designed to receive signals, the method comprising the steps: Requesting a flow (5) of a fluid through the supply channel (11), Assigning the requested flow (5) through the supply channel (11) to a position of the at least one first actuator (4, 3), Generating a first signal (23, 22) for the at least one first actuator (4, 3), wherein the generated first signal (23, 22) a function of the requested flow (5) through the supply channel (11) associated position of the at least a first actuator (4, 3), Outputting the generated first signal (23, 22) to the at least one first actuator (4, 3), Generating a second signal (21) by the mass flow sensor (13), the second signal (21) being a function of a flow (15) through the side channel (28), Processing the second signal (21) generated by the mass flow sensor (13) to an actual value of the flow (15) through the side channel (28), Processing the requested flow (5) through the supply channel (11) to a desired value (32) of the flow (15) through the side channel (28), Generating a control signal (22, 23) by the controller (37) for the at least one second actuator (3, 4) as a function of the actual value of the flow through the side channel (28) and as a function of the desired value (32) of the Flow through (15) through the side channel (28), Outputting the generated control signal (22, 23) to the at least one second actuator (3, 4). The method of claim 1, wherein processing the requested flow (5) through the delivery channel (11) to a target value (32) of the flow (15) through the side channel (28) provides a reversibly unique allocation of the requested flow (5). through the supply channel (11) to the desired value (32) of the flow (15) through the side channel (28). The method according to one of claims 1 or 2, wherein generating a control signal for the at least one second actuator (3, 4) by means of a proportional-integral controller (37) or by means of a proportional-integral-derivative controller (37). The method according to one of claims 1 to 3, wherein the at least one second actuator of the burner device comprises an adjustable speed blower (3), the variable speed blower (3) comprising a drive, and wherein the blower (3) is in the supply duct (11) of the burner device is arranged. The method according to one of claims 1 to 4, wherein the generated control signal (22, 23) to the at least one second actuator (3, 4) is a pulse width modulated signal or an inverter signal having a frequency which is the speed of a as a blower (3) formed at least one second actuator (3, 4). The method according to one of claims 1 to 5, wherein the at least one first actuator of the burner device comprises a motor-adjustable flap (4) with a drive and the motor-adjustable flap (4) in the supply channel (11) of the burner device is arranged. The method of one of claims 1 to 6, wherein processing the second signal (21) generated by the mass flow sensor (13) comprises filtering the second signal (21) generated by the mass flow sensor (13). The method according to one of claims 1 to 7, wherein the burner device additionally comprises a fuel supply channel (38) with at least one safety shut-off valve (7-8) for closing the fuel supply channel (38), wherein the at least one safety shut-off valve (7-8 ) is arranged to receive a signal (24-25) for switching off the burner device and to close the fuel supply channel (38) in response to the receipt of a signal (24-25) for switching off the burner device, the method additionally comprising the steps: Comparing the generated control signal (22-23) with an upper threshold and / or with a lower threshold, Generating a signal (24-25) for switching off the burner device, if the generated control signal (22-23) is above the upper threshold value and / or below the lower threshold value, Outputting the generated signal (24-25) for switching off the burner device to the at least one safety shut-off valve (7-8) if the generated control signal (22-23) is above the upper threshold value and / or below the lower threshold value. The method according to one of claims 1 to 7, wherein the burner device additionally comprises a fuel supply channel (38) with at least one safety shut-off valve (7-8) for closing the fuel supply channel (38), wherein the at least one safety shut-off valve (7-8 ) is arranged to receive a signal (24-25) for switching off the burner device and to close the fuel supply channel (38) in response to the receipt of a signal (24-25) for switching off the burner device, the method additionally comprising the steps: Comparing the actual value of the flow (15) through the side channel (28) with an upper threshold value and / or with a lower threshold value, Generating a signal (24-25) for switching off the burner device, if the actual value of the flow (15) through the side channel (28) is above the upper threshold and / or below the lower threshold, Outputting the generated signal (24-25) for switching off the burner device to the at least one safety shut-off valve (7-8) if the actual value of the flow rate 15 through the side channel (28) above the upper threshold and / or below the lower Threshold is. The method according to one of claims 1 to 9, wherein the assignment of the requested flow (5) through the supply channel (11) to a position of the at least one first actuator (4, 3) takes place on the basis of a predetermined table, in which values of the requested flow (5) values of the positions of the at least one first actuator (4, 3) are assigned by the supply channel (11). The method according to one of claims 1 to 10, wherein the burner device additionally comprises a fuel supply channel (38) and at least one on the fuel supply channel (38) acting fuel actuator (9) and the fuel actuator (9) for receiving fuel signals (26), the method additionally comprising the steps: Requesting a flow (6) of a fuel through the fuel supply channel (38), Allocating the flow (6) of the fuel through the fuel supply channel (38) to a position of the at least one fuel actuator (9), wherein the flow rate of the fuel (6) through the fuel supply passage (38) to a position of the at least one fuel actuator (9) is determined from a table of values of the requested flow (6) through the fuel supply passage (38) Positions of at least one fuel actuator (9) are assigned, Generating a fuel signal (26) for the at least one fuel actuator (9), the generated fuel signal (26) having a function of the requested flow (6) through the fuel supply channel (38). assigned position of the at least one fuel actuator (9), Outputting the generated fuel signal (26) to the at least one fuel actuator (9) and positions of the at least one fuel actuator (9) corresponding to the output fuel signal (26). The method according to claim 11, the method additionally comprising the step: Allocating a flow (6) of a fuel through the fuel supply passage (38) to a flow (5) of a fluid through the supply passage (11) based on a constant factor between the flow (6) of a fuel through the fuel supply passage (38) and the flow ( 5) of a fluid through the supply channel (11). The method according to claim 11, the burner device additionally comprising an exhaust passage (30) with a probe in the exhaust passage (30) and a λ controller configured to receive signals from the probe of the exhaust passage (30), the method additionally comprising the steps : Generating a signal through the probe in the exhaust duct (30), Transmitting the signal from the probe in the exhaust duct (30) to the λ control, Determining a variable factor between the flow of a fuel (6) through the fuel supply passage (38) and the flow (5) of a fluid through the supply passage (11) as a function of the transmitted signal, Allocating a flow (6) of a fuel through the fuel supply passage (38) to a flow (5) of a fluid through the supply passage (11) based on the determined variable factor. The method according to any one of claims 1 to 13, the method additionally comprising the step: Determining a power of the burner device based on the desired value (32) of the controller (37) and / or based on the value of the requested flow (5) through the supply channel (11). A non-transitory computer-readable storage medium storing an instruction set for execution by at least one processor which, when executed by a processor, performs a method comprising the steps of any one of claims 1 to 14.

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