WO2015058858A1 - Dispositif afficheur, procédé et commande pour l'analyse du comportement oscillatoire d'un système de chauffe - Google Patents

Dispositif afficheur, procédé et commande pour l'analyse du comportement oscillatoire d'un système de chauffe Download PDF

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Publication number
WO2015058858A1
WO2015058858A1 PCT/EP2014/002873 EP2014002873W WO2015058858A1 WO 2015058858 A1 WO2015058858 A1 WO 2015058858A1 EP 2014002873 W EP2014002873 W EP 2014002873W WO 2015058858 A1 WO2015058858 A1 WO 2015058858A1
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WIPO (PCT)
Prior art keywords
vibration
firing system
data
oscillation
display device
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Application number
PCT/EP2014/002873
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German (de)
English (en)
Inventor
Jakob Hermann
Original Assignee
IfTA Ingenieurbüro für Thermoakustik GmbH
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Filing date
Publication date
Application filed by IfTA Ingenieurbüro für Thermoakustik GmbH filed Critical IfTA Ingenieurbüro für Thermoakustik GmbH
Priority to EP14793780.9A priority Critical patent/EP3060848A1/fr
Publication of WO2015058858A1 publication Critical patent/WO2015058858A1/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
    • F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion

Definitions

  • the present invention relates to a display device for analyzing a vibration behavior of a firing system, a method for controlling a firing system using the display device, and a control device for controlling a firing system.
  • Self-excited combustion vibrations occur in combustion systems (such as gas heaters, process gas heaters, gas turbines, rocket engines) by feedback of thermal heat release to the supply of fuel and / or air supply.
  • acoustics usually represent the relevant feedback path.
  • the mechanical structure of the firing system can also serve as a feedback path.
  • the operating mode is e.g. a diffusion operation that leads to extremely high NOx levels. According to current emission regulations, such high NOx levels are no longer allowed.
  • the ambient conditions of the firing system such as the temperature of the supplied combustion air, the air pressure, the gas composition, the aging of the respective firing system, etc. influence the occurrence of the vibrations, it is often not possible to deliver the firing system so that the occurrence of combustion oscillations reliably prevented can be. Rather, it is often necessary to set the respective firing system on site, that is to say at the final place of use, in such a way that the vibrations are avoided in the ambient conditions prevailing there. This process is also called tuning the combustion system.
  • the combustion vibrations be measured by suitable sensors (e.g., piezo pressure transducers) and recorded by means of a vibration measurement or monitoring system. Based on this data, the relevant control variables of the combustion system are trimmed so that the vibrations are avoided or brought below a tolerable level.
  • the evaluation of the data is carried out in spectral or frequency and line plots, whereby in the spectral plots - which can be individual spectra but also spectrograms - the vibration quantities and in the line plots the relevant operating variables are displayed.
  • various variables must be read by the respective personnel and interpreted in a suitable manner in order to be based thereon by a suitable adjustment, e.g.
  • Object of the present invention is an improved display device, a To provide improved method and an improved control device, in particular to facilitate the tuning of firing systems.
  • the present invention provides a display for analyzing a vibration behavior of a firing system, the display comprising: operation data receiving means for receiving first and second operating data of the firing system, wherein the first and second operating data characterize different operating parameters of the firing system having a vibration condition of the firing system, oscillation data receiving means for receiving oscillation data of the firing system associated with the first and second operating data of the firing system and characterizing the oscillation state of the firing system, oscillation data mapping means which maps the received oscillation data to a predetermined oscillation indicator set and outputs oscillation indicator data corresponding to the oscillation data wherein the vibration indicator set comprises a plurality of vibration indicators, characterizing the different vibration states of the firing system, and output means for outputting an analysis curve in which the first and second operational data are plotted against each other, wherein the analysis curve is subdivided into analysis curve elements and wherein each analysis curve element is overlaid with an associated vibration indicator of the vibration indicator data.
  • the present invention provides a method of controlling a firing system using a display device according to the first aspect, the method comprising the steps of: ramping up the firing system along a first driving line, during start-up, acquiring the first and second operational data of the firing system Firing system and the associated vibration data of the firing system and supplying the first and second operating data and the vibration data to the display device, and using the display device for analyzing the instantaneous vibration behavior of the firing system based on the output analysis curve.
  • the present invention provides a control device Controlling a firing system, which comprises a display device according to the first aspect and is adapted to carry out the method according to the second aspect.
  • Fig. 1 illustrates an embodiment of a display device in accordance with the present invention
  • Fig. 2 is a first illustration of the output of the display of Fig. 1;
  • FIG. 3 is another illustration of the output of the display of FIG. 1 with another analysis curve
  • FIG. 4 is another illustration of the output of the display of FIG. 1 with line optimization
  • Fig. 5 shows an embodiment of an analysis curve with symbols
  • Fig. 6 shows an embodiment of an analysis curve with arrows.
  • FIG. 1 an embodiment of a display device 1 in accordance with the present invention is illustrated.
  • a display device 1 in accordance with the present invention is illustrated.
  • combustion systems such as gas boilers, process gas heaters, gas turbines, rocket engines or the like
  • a feedback of thermal heat release to the supply of fuel and / or air supply self-excited combustion oscillations, also called vibrations below.
  • the acoustics represents the relevant In other cases, however, the mechanical structure of the firing system itself can serve as a feedback path.
  • vibrations are undesirable because they can lead to high sound pressure amplitudes in the firing system, which in turn can lead to a strong stimulation of the mechanical structure of the firing system as a function of the frequency.
  • the amplitudes can reach such a high level that the respective firing system often depends on its mechanical loadability after a short time, i. in a period of seconds to hours, can be damaged or destroyed.
  • the (combustion) vibrations are measured by suitable sensors (e.g., piezo pressure transducers or other known pressure / vibration sensors) and recorded by means of a vibration monitoring system or other recording means. Based on these data, the relevant control variables of the combustion system are trimmed, i. such that the vibrations are avoided or brought below a tolerable level specified by a corresponding threshold.
  • suitable sensors e.g., piezo pressure transducers or other known pressure / vibration sensors
  • the vibration can also be measured indirectly by measuring a quantity to which the (combustion) vibrations affect.
  • a variable is, for example, the vibration of an excited by the (combustion) vibration component, such as a combustion chamber wall.
  • Such a vibration can be eg by a Measure accelerometer.
  • the evaluation of the data is carried out, for example, in spectral or frequency and / or line plots, wherein the spectral plots - which can be individual spectra but also spectrograms -, the vibration quantities and in the line plots the relevant operating variables are displayed.
  • the adjustment process should be kept as short as possible on the one hand for economic reasons. On the other hand, it is also necessary to prevent possible damage by timely intercepting combustion oscillations are intercepted.
  • the (instantaneous) engine operating state and vibration state of the firing system can be simultaneously determined and analyzed and also simultaneously presented to the staff for analysis. In some embodiments, this is also done "online", ie, (near) real time, such that, for example, the personnel setting up or controlling the firing system can simultaneously detect in real time the operating condition and vibration status of the firing system.
  • the staff setting the combustion system or firing system is provided with a fast and efficient representation in order to detect combustion oscillations which, for example, through the intervention of the personnel. ie changing the operating parameters, to avoid.
  • the vibration quantities are displayed above the relevant operating data or the characteristic diagram of the firing system. This can be, for example, the oscillation amplitude over the thermal power and the air ratio.
  • some embodiments relate to a display device for analyzing a vibration behavior or combustion oscillation behavior of a firing system.
  • the display device in this case comprises an operating data receiving means for receiving first and second operating data of the firing system, wherein the first and second operating data characterize different operating parameters of the firing system, which can (significantly) influence a vibration state of the firing system.
  • the operation data receiving means may include a microprocessor and a data interface to communicate with, for example, a network, the Internet or other information exchange network.
  • the operating data receiving means may also be connected directly to corresponding sensors which detect and transmit the first and / or second operating data to the operating data receiving means.
  • the operating data receiving means is also connected to a monitoring system of the firing system and receives from the first and / or second operating data.
  • the operation data receiving means may also receive the first and second operation data by, for example, reading out a corresponding data file and / or database.
  • the present invention is not limited to any particular type of transmission, source, transmission or signal or data characteristic of the first and second operating data, respectively.
  • the first and / or second operating data are, for example, characteristic of an air number, an exhaust gas temperature, a power, in particular thermal or electrical power and / or a mass flow of air and / or fuel supply of the firing system or characteristic variables derived therefrom or indirect variables, such as the stroke of a fuel valve, which is indirectly characteristic of the amount of fuel supplied.
  • Other combinations, for example of derived quantities, for example the electric power generated by the thermal power in stationary gas turbines above the exhaust gas temperature, are used in some embodiments.
  • the first and second operating data represent an operating line. Since, in some embodiments, the firing system is operated only on an operating line and not in a wide operating or characteristic field, in some embodiments the operating line also simultaneously represents the driving line of the firing system.
  • the display device further comprises a vibration data receiving means for receiving oscillation data of the firing system, which are linked to the first and second operating data of the firing system and characterize the oscillation state of the firing system.
  • the vibration data receiving means may comprise a microprocessor and a data interface for communicating, for example, with a network, the Internet or other information exchange network.
  • the vibration data receiving means may also be connected directly to corresponding sensors which detect the vibration data and transmit it to the vibration data receiving means.
  • the vibration data receiving means is also connected to a monitoring system of the firing system and receives therefrom the vibration data.
  • the vibration data receiving means receives the vibration data by reading out a corresponding data file and / or database.
  • the present invention is not limited to any particular type of transmission, origin, transmission or signal or data characteristic of the vibration data.
  • the vibration data characterize one Amplitude and / or frequency of the oscillation state of the firing system or variables derived therefrom. As explained above, vibrations that are undesirable occur during operation of the firing system.
  • the vibration state of the firing system in some embodiments represents the vibration behavior of the firing system at a specific time or in a specific time interval and is determined, for example, by a suitable measuring device on the firing system which outputs the vibration data.
  • the display device further comprises a vibration data imaging means which maps the received vibration data to a predetermined vibration indicator set and outputs vibration indicator data corresponding to the vibration data.
  • the vibration indicator set includes a plurality of vibration indicators that characterize different vibration states of the combustion system.
  • the vibration data imaging means includes a microprocessor and a non-volatile memory (e.g., ROM, hard disk, or the like) in which the vibration indicator set is stored.
  • the vibration data imaging means is adapted to process the received vibration data accordingly and to associate it with the vibration indicators. The assignment occurs in some embodiments according to the vibration value represented by the vibration data. Low vibration values are assigned different shrinkage indicators than high vibration values.
  • the vibration values may, for example, represent a vibration amplitude and / or vibration frequency. Consequently, in some embodiments, the vibration indicators are capable of differentiating different vibration values and marking them accordingly.
  • Vibration indicator sets may differ depending on the embodiment by the number of different vibration indicators.
  • the vibration data imaging means is arranged, for example, evenly or unevenly divide a corresponding vibration value range into individual sub-areas, and assign predefined vibration indicators to the individual sub-areas.
  • the vibration value range is divided into as many sub-ranges as there are vibration indicators in the vibration indicator set. Accordingly, all vibration values that lie in a specific subrange are assigned to a corresponding vibration indicator. This ensures a complete mapping of the vibration data defining corresponding vibration values to the vibration indicators in a vibration indicator set.
  • the display device further comprises an output means for outputting an analysis curve in which the first and second operating data are plotted against each other, wherein the analysis curve is subdivided into analysis curve elements and wherein each analysis curve element is overlaid with an associated vibration indicator of the vibration indicator data.
  • the analysis curve represents, as already explained above, in some embodiments, the operating line on which the firing system is operated. In some embodiments, the analysis curve represents the driving line on which the firing system is driven.
  • the analysis curve represents not only the operating state but also the vibration state at the same time as a result of the vibration indicators.
  • the display device is configured to output the analysis curve in near real-time so that the analysis curve represents the actual operating and vibrational state of the firing system in near real time, that is, except for the delay caused by the data transfer and processing.
  • the vibration state of the firing system can be analyzed, for example.
  • appropriate personnel which is responsible for the control or device of the firing system.
  • the association between the vibration data and the first and second operating data is temporal Correlation.
  • the first and second operating data and the vibration data are determined at the same time or within an identical time period so that the operating state and the vibration state of the firing system are in temporal relation to each other.
  • the vibration indicators of a particular vibration indicator set differ by color and / or shape and / or size or other criteria, such as a fill pattern. In some embodiments, therefore, it is important that the vibration indicators visually differ from each other.
  • the vibration indicator set includes, for example, a color pallet defined by the known RGB or CMYK color space.
  • the term color pallet is to be understood here as including a grayscale pallet.
  • one analysis curve element is characterized by one point.
  • the point is not necessarily round, but can have any shape and size extent. Consequently, point is here to be understood in a functional sense and as a distinguishing criterion to a solid line.
  • the representation of the analysis curve by points to represent the analysis curve itself, for example, by the vibration indicators.
  • mixed forms are realized.
  • the analysis curve is represented by dots that are colored accordingly. In some embodiments, for example, only a central area of a dot is colored.
  • the analysis curve elements have a specific shape, such as a circular, elliptical, rectangular or other shape. Arrow shapes as analysis curve elements are also realized in some embodiments, wherein the direction of the arrowheads of the arrow-shaped analysis curve elements can indicate the direction of travel of the firing system. Any mixed forms are realized.
  • the analysis cursors are configured to characterize a third operational parameter that, like the first and second operational data, originates from an operational data receiving means and / or is read from a file and / or database.
  • the analysis curve elements can, for example, be configured in the shape of an arrow and indicate the third operating parameter, such as the direction of travel, via the direction and / or shape and / or size thereof.
  • an up arrow may indicate that a third operating parameter is enabled, eg, a bypass door is open, and a down arrow may indicate that this door is closed again.
  • the analysis curve can be displayed in such a way that, on the one hand, the operating line can be recognized and, on the other hand, the state of vibration can be recognized at individual points on the operating line.
  • the analysis curve is shown as a line and it is itself color coded according to the vibration indicator set.
  • the line may be shown thicker in order to obtain a good color contrast.
  • two analysis curves e.g. to compare a first ride with a second ride, displayed side by side in a plot, which are distinguishable by means of different point symbols.
  • circular points may be used for the first trip and square points for the second trip.
  • an acoustic signal in particular from the display device, is generated and output.
  • the acoustic signal may represent the vibration data and / or the operating data.
  • the acoustic signal is output, for example, when, for example, a current data point, i. a current analysis curve element is generated and / or when an input device (e.g., mouse, keyboard, touchpad or the like) arranges a display element such as a mouse pointer or the like over a current data point.
  • the vibration data as an acoustic signal a sound signal is assigned so that, for example, with increasing vibration amplitudes, the frequency of the sound signal, ie the pitch increases, or the frequency of a constant sound signal, eg a pips, increases.
  • non-permissible driving ranges in the plots are e.g. deposited by a gray area in the map to make the operator unauthorized area from the outset recognizable.
  • Non-permissible driving ranges can e.g. be areas not allowed for other reasons, e.g. impermissible air frequency ranges or ranges with already known high vibration values.
  • some embodiments also relate to a method which, for example, is implemented as a computer program.
  • the means mentioned above i. Operating data receiving means, vibration data receiving means, vibration data mapping means, and output means as functions or objects of a computer program.
  • the method is implemented as a computer program product.
  • the method can also be used in the post-processing, ie not in the direct setting of the combustion system, and the recorded vibration data can be displayed accordingly. This makes it easier to plan and optimize new setting trips and to characterize the combustion system.
  • Some embodiments relate to a method of controlling a firing system using the display device or method as described above.
  • the method includes the step of starting the firing system along a first driving line.
  • the driving line is an operating line of the firing system along which it is driven.
  • the driving line is, for example, a line resulting from the relationship between the number of air and the associated thermal power. As stated above, however, there are other operating parameters that can form a driving line.
  • the first and second operating data of the firing system and the associated vibration data of the firing system recorded, as already described above.
  • the first and second operating data and the vibration data are supplied to the display device, for example, transmitted via data lines, as stated above.
  • the display device described above is used to analyze the instantaneous vibration behavior of the firing system based on the output analysis curve.
  • the start-up of the firing system is stopped if a critical vibration state of the firing system is determined in the analysis step.
  • a critical vibration state of the firing system is determined in the analysis step.
  • the firing system is then run up along a second driving line that is different from the first driving line to avoid the critical vibration state of the firing system. Again, it can be immediately recognized from the analysis curve, whether the firing system gets into a critical state of vibration. It can be tried as long as another driving line until the firing system is optimally set up. The optimum driving line thus determined is then deposited, for example, in a control system of the firing system.
  • control device for controlling a firing system.
  • the control device comprises the above-described display device and is configured to carry out the method just described.
  • this illustrates an embodiment of the display device 1 described above.
  • the display device 1 has the above-described components of operating data receiving means 2 for receiving first and second operating data of a firing system 6, vibration data receiving means 3 for receiving vibration data of the firing system 6, vibration data mapping means 4, for mapping received vibration data to a predetermined vibration indicator set 8, 10, stored here by way of example in a memory 4a of the vibration data mapping means 4, and output means 5 for outputting an analysis curve.
  • FIGS. 2 to 5 now illustrate different exemplary embodiments of analysis curves, oscillation indicator sets and oscillation indicators in diagrams, which can be generated by means of the display device 1 as described above.
  • FIG. 2 illustrates a diagram in which the thermal power (y-axis) is plotted against the air ratio (x-axis) and results in an analysis curve 7.
  • the thermal power and the air ratio are received by the display device 1 as first and second operation data from the operation data receiving means 2 as described above.
  • the vibration data receiving means 3 receives vibration data of the firing system 6.
  • the vibration data is imaged by the vibration data mapping means 4 on a predetermined vibration indicator set 8.
  • This vibration indicator set 8 is shown on the left in the diagram. It is designed here by way of example as a grayscale color pallet so that, for example, one can read which color corresponds to which oscillation amplitude value.
  • the vibration indicator set 8 contains vibration indicators 8a, 8x, which are designed as different shades of gray tone and are indicative of vibration amplitudes. The darker the grayscale, the smaller the oscillation amplitude and the brighter the grayscale, the greater the oscillation amplitude.
  • a grayscale palette, a corresponding scale and the associated unit "oscillation amplitude [Pa]" are given for the oscillation indicator set 8.
  • the unit and scaling in the diagram are arbitrarily selected in this embodiment and other values can also be specified.
  • the analysis curve 7 output by the output means 5, as stated above, is divided into individual analysis curve elements, which are designed here as points 7a, 7b, 7x.
  • the "x" at the last point “7x” of the analysis curve 7 is here to be understood as a wildcard for any number and symbolizes that the invention is not limited to a certain number of points.
  • the colored, i. gray points 7a, 7b to 7x indicate the driving line of the combustion system 6.
  • Each point 7a, 7b to 7x is assigned a vibration indicator 8a, 8b to 8x in which each point 7a, 7b to 7x is given a certain filling color given, as indicated in the grayscale palette 8.
  • the filling color of the points 7a, 7b to 7x is, as described, indicative of the oscillation amplitude of the firing system 6 at the corresponding point of the driving line.
  • the "x" in the last vibration indicator "8x" of the analysis curve 7 is here to be understood as a wildcard for any number and symbolizes that the invention is not limited to a certain number of vibration indicators.
  • FIG. 3 shows such a diagram, which is created analogously to the diagram of FIG. 2.
  • the analysis curve 7 ' with the points 7'a, 7'b, 7'x that the line of travel is steeper in comparison with FIG. higher thermal performance is achieved by comparing lower air ratios.
  • the fact that the vibration behavior of the firing system 6 is better in this driving line can be inferred from the vibration indicators 8'a to 8'x since, for example, only average gray levels are visible in the analysis curve compared with FIG. 2, and no bright ones.
  • Figure 4 is a diagram analogous to that of Figures 2 and 3):
  • the combustion system 6 is driven up along a first driving line "Test 1" until a critical oscillation amplitude is reached, which can be seen from the associated analysis curve 7 ". Then you decrease the power and / or the air ratio of the combustion system 6 and increases in an alternative driving line “Test 2" the power and / or air ratio again and analyzed the vibration state of the firing system using the analysis curve 7 "'. This process is then repeated until an alternative and optimal driving line with permissible vibration amplitudes has been found.
  • a vibration indicator set 10 contains different vibration indicators, which are configured as different symbols 10a to 10g.
  • the vibration indicators 10a to 10g are indicative of different vibration amplitudes, as indicated in the scale next to the vibration indicator set 10 and as already described in connection with FIGS. 2 to 4.
  • the thermal power is also plotted against the air ratio, and an analysis curve 9 is shown which is included in analysis curve elements, i. Points 9a to 9x is divided.
  • Each point 9a to 9x is now associated with one of the vibration indicators 10a to 10g of the vibration indicator set 10.
  • the same oscillation indicator 10a is also associated with a plurality of points, for example the points 9a and 9b. This means that the oscillation amplitude from point 9a to 9b has not changed so much that the next "higher" oscillation indicator 10b had to be assigned.
  • the vibration behavior of the Analysis curve 9 is shown and analyzed and the analysis curve 9 shows, for example, that at the last point 9x, the highest amplitude value of vibration is present, since this is marked with the vibration indicator 10g, which is indicative of the highest vibration value.
  • FIG. 6 illustrates a further exemplary embodiment in which, in contrast to the exemplary embodiments of FIGS. 2 to 4, arrow-shaped elements 11a, 11b,... 1 are used as analysis curve elements of an analysis curve 1.
  • the vibration indicator set 8 corresponds to the one already described in connection with FIGS. 2 to 4 and is embodied as a gray-scale color pallet, so that it is possible, for example, to read which gray level corresponds to which oscillation amplitude value.
  • the vibration indicator set 8 contains vibration indicators 8 "a, 8" x, which are designed as different shades of gray tone and are indicative of vibration amplitudes. The darker the grayscale, the smaller the oscillation amplitude and the brighter the grayscale, the greater the oscillation amplitude. In order to visualize this relationship, a corresponding scale and the associated unit "oscillation amplitude [Pa]" are indicated on the grayscale palette of the oscillation indicator set 8.
  • the unit and scaling in the diagram are arbitrarily selected in this embodiment and other values can also be indicated.
  • the gray arrows 11a, 11b to 11x indicate the driving line of the combustion system 6.
  • Each arrow 11a, 11b, 11x is assigned a vibration indicator 8 "a, 8" b, to 8 "x by each Arrow 1 a, 11b, until there is 1 x a certain filling color, as indicated in the gray scale palette of the vibration indicator set 8 and as described above
  • the filling color of the arrows 11 a, 11 b to x is indicative of, as described the oscillation amplitude of the firing system 6 at the corresponding "arrow point" of the driving line.
  • the arrows 11 a, 11 b, 11 x are aligned in the analysis curve 1 so that the respective arrowhead of an arrow 1 1 a, 11 b to 11 x points in the direction of travel, so that the analysis curve 11 and the direction of travel of the firing system indicates. This can be helpful in particular in the tuning of the firing system described above, since the direction of travel can be seen with a view of the analysis curve 11.
  • the distribution of the oscillation values can be changed with the number of available oscillation indicators in some embodiments.
  • the display device is designed such that, for example, the number of vibration indicators and / or the vibration value range is / are predetermined.
  • a plurality of vibration indicator sets are predefined and stored in a non-volatile memory and can be selected by a user as needed.
  • the vibration amplitudes shown in FIGS. 2 to 6 in a map one can e.g. also the RMS value (Root Mean Square) and / or P2P value (Peak-to-Peak) or the amplitude which is determined, for example, from the time values of the oscillation. from spectral analysis, frequency analysis, bandpass filtering and / or FFT analysis. Not only can e.g. the largest amplitude value of a spectrum but also the value from a so-called band analysis are plotted. In the band analysis, the largest amplitude in a certain frequency band is determined in a spectrum. Also already calculated amplitude values, e.g. The square of an amplitude value may, in some embodiments, be represented by vibration indicators (sets). In other words, in some embodiments, any value that characterizes the vibration to a sufficient extent can be plotted, i. represent by vibration indicators.
  • RMS value Root Mean Square
  • P2P value Peak-to-Peak
  • the oscillation frequency is also plotted instead of the amplitude, e.g. in a second diagram and the display device 1 is set up accordingly.
  • the air ratio or the thermal power of a different size instead of the air ratio or the thermal power of a different size, as already indicated above.
  • This may be the mass flow of a particular air or gas feed or a fuel split size, such as the ratio of premix gas to pilot gas in a firing system that uses gas as fuel.
  • an indirect quantity may be applied, such as electrical power, when shaft power is generated by the combustion system in a thermal cycling process which in turn serves to drive a generator.
  • the stroke of a fuel valve can also be applied.
  • the ionization current of an ionization probe or the combustion chamber temperature or the exhaust gas temperature can also be plotted.
  • It may also be a temperature proportional to the firebox temperature and / or proportional to a mass flow of air and / or fuel supply variable, and / or the ratio of air to fuel feed in a mass flow of the firing system or a proportional size can be represented.
  • the present invention is not intended to be limited to a particular firing system or combustion system. In principle, the present invention can be applied to any type of combustion system or combustion system in which undesirable vibrations occur in the combustion mode.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

L'invention concerne un dispositif afficheur, servant à analyser le comportement vibratoire d'un système de chauffe, qui comprend : ‑ un moyen de réception de données de fonctionnement (2) servant à recevoir des premières et deuxièmes données de fonctionnement du système de chauffe, lesdites premières et deuxièmes données de fonctionnement caractérisant différents paramètres de fonctionnement du système de chauffe qui influent sur un état oscillatoire du système de chauffe, ‑ un moyen de réception de données d'oscillations (3) servant à recevoir des données d'oscillations du système de chauffe liées aux premières et deuxièmes données de fonctionnement du système de chauffe et caractérisant l'état oscillatoire du système de chauffe, ‑ un moyen de projection des données d'oscillations (4) qui projette les données d'oscillations reçues sur un jeu d'indicateurs d'oscillations (8, 10) prédéfini et qui délivre en sortie des données d'indicateurs d'oscillations correspondant aux données d'oscillations, le jeu d'indicateurs d'oscillations comprenant plusieurs indicateurs d'oscillations (8a,..., 8x; 10a,..., 10g) qui caractérisent différents états oscillatoires du système de chauffe, et ‑ un moyen de sortie (5) servant à éditer une courbe d'analyse (7, 9, 11) montrant la variation des premières et deuxièmes données de fonctionnement en fonction les unes des autres. La courbe d'analyse (7, 9, 11) est subdivisée en éléments de courbe d'analyse (7a,..., 7x; 9a,..., 9x; 11a,..., 11x) et un indicateur d'oscillation (8a,..., 8x; 10a,..., 10g) correspondant des données d'indicateurs d'oscillations est superposé à chaque élément de courbe d'analyse (7a,..., 7x; 9a,..., 9x; 11a,..., 11x).
PCT/EP2014/002873 2013-10-24 2014-10-24 Dispositif afficheur, procédé et commande pour l'analyse du comportement oscillatoire d'un système de chauffe WO2015058858A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14793780.9A EP3060848A1 (fr) 2013-10-24 2014-10-24 Dispositif afficheur, procédé et commande pour l'analyse du comportement oscillatoire d'un système de chauffe

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102013017827.4 2013-10-24
DE102013017827 2013-10-24
DE102014002601.9 2014-02-24
DE102014002601.9A DE102014002601B4 (de) 2013-10-24 2014-02-24 Anzeigeeinrichtung, Verfahren und Steuerung zur Analyse eines Schwingungsverhaltens eines Feuerungssystems

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