EP2039939B1 - Procédé de surveillance d'un dispositif de transformation d'énergie - Google Patents

Procédé de surveillance d'un dispositif de transformation d'énergie Download PDF

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Publication number
EP2039939B1
EP2039939B1 EP07018530.1A EP07018530A EP2039939B1 EP 2039939 B1 EP2039939 B1 EP 2039939B1 EP 07018530 A EP07018530 A EP 07018530A EP 2039939 B1 EP2039939 B1 EP 2039939B1
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EP
European Patent Office
Prior art keywords
variables
power
pump
motor
detected
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EP07018530.1A
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German (de)
English (en)
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EP2039939A1 (fr
EP2039939B2 (fr
Inventor
Pierre Vadstrup
Carsten Skovmose Kallesøe
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Grundfos Management AS
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Grundfos Management AS
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Application filed by Grundfos Management AS filed Critical Grundfos Management AS
Priority to EP07018530.1A priority Critical patent/EP2039939B2/fr
Priority to CN200880108089.6A priority patent/CN101802413B/zh
Priority to JP2010525224A priority patent/JP5439378B2/ja
Priority to US12/679,054 priority patent/US20100300220A1/en
Priority to PCT/EP2008/007041 priority patent/WO2009039934A1/fr
Publication of EP2039939A1 publication Critical patent/EP2039939A1/fr
Publication of EP2039939B1 publication Critical patent/EP2039939B1/fr
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B51/00—Testing machines, pumps, or pumping installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0088—Testing machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/80—Diagnostics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2270/00—Control
    • F05D2270/30—Control parameters, e.g. input parameters
    • F05D2270/335—Output power or torque

Definitions

  • the invention relates to a method for monitoring an energy conversion device, which consists of several functionally linked functional units.
  • energy conversion devices in the context of the invention may be, for example, electric motor driven centrifugal pump units, electric motor driven compressors, equipment equipped therewith or the like. They consist of several functionally linked functional units, such as electric motor and centrifugal pump or electric motor and positive displacement pump or combustion engine and electric generator.
  • Such energy conversion devices are used today in almost all technical but also domestic applications.
  • the invention has the object, a generic method for monitoring an energy conversion device, which consists of a plurality of functionally interconnected functional units to improve, in particular to the effect that not only a false state, but also a deterioration in efficiency is detected. Furthermore, corresponding energy conversion devices for carrying out the method according to the invention are to be formed.
  • the solution according to the invention provides a method for monitoring an energy conversion device, which consists of a plurality of functionally linked functional units, in which power-dependent variables of at least one functional unit are automatically acquired and / or calculated at intervals and with each other or with values derived therefrom and / or or are compared with predetermined values and a corresponding signal is generated as a function of this comparison.
  • power-dependent variables of at least two functionally connected functional units preferably of all functional units, are automatically detected and / or calculated at intervals, the power-dependent output variables or variables derived therefrom of the one functional unit forming the power-dependent input variables of the function unit downstream of this functional unit.
  • the basic idea of the method is to monitor at least one functional unit at intervals with regard to its efficiency and to display the result by means of a signal or to make it automatically evaluable.
  • power-dependent variables of a functional unit are automatically detected at intervals over time and compared with predetermined values determined beforehand or derived therefrom.
  • predetermined values determined beforehand or derived therefrom.
  • an energy conversion device ie in particular an aggregate, a machine or a system can self-learning determine and display its individual performance characteristics, the resulting operating behavior, life expectancy and the like.
  • Performance-dependent variables in the sense of the present invention are those which stand in some connection with the performance characteristic of a functional unit.
  • discontinuously operating units such as the compressor of a refrigerator, and the timing of the switching on and off a performance-dependent size in the sense of the present invention.
  • the efficiency monitoring according to the invention of the device or at least individual functional units of the device can be carried out comparatively easily if the functional units are always in the same position Run operating point, since then typically a reading is sufficient to determine the intended or decreased power / efficiency of each unit.
  • an energy conversion device such as a heating circulation pump is to be monitored.
  • Such aggregates typically consist of the functional units engine and centrifugal pump, wherein the centrifugal pump typically constantly changes its operating point, since the pipe network resistance of the heating system changes due to external influences.
  • the determination can also take place in that two hydraulic variables of the pump, typically the flow rate and the delivery head, are determined and equated with the mechanical output delivered by the engine via a corresponding model calculation.
  • the method according to the invention is carried out during the normal operation of the device, that is to say in the case of a pump unit during the intended conveying operation, wherein the time interval for detecting the quasi-simultaneous operating points for determining the course of the area may be in the range of, for example, minutes, whereas the time interval after a comparative measurement is performed, may be in the daily, weekly or monthly range, depending on the device type. Comparatively long intervals are z. As result in heating circulation pumps, whereas short intervals in compressors, especially for cooling systems may be appropriate because with such a monitoring method not only a deterioration in efficiency, but also a possible expected failure of the device can be detected.
  • the time interval in which the performance-dependent variables to be compared are thus determined depends both on the type of machine and on the intended use.
  • the comparison is, however, expediently based on the previously acquired variables or predetermined values, the latter method having the advantage that a poor function can thus already be detected during commissioning.
  • the method according to the invention can be carried out when first recorded and stored a determining the power consumption of the motor electrical size of the motor and at least one of the hydraulic operating point of the pump-determining variable be waited and for the subsequent comparison measurement until the previously detected hydraulic operating point is reached again and then the power consumption of the engine determining variables of the engine are detected and compared with the first stored. Then, a direct comparison can be made without operating point deviations and thus the aforementioned surface curves must be determined.
  • the variables acquired later for comparison measurement can also be detected at any operating point of the installation if the acquired variables are transferred based on a mathematical electrical motor model and / or a mathematical-hydraulic pump model, i. be converted to operating point independent variables and then compared with the stored variables or vice versa, so that a comparison of the power-determining variables is possible regardless of the operating point.
  • the method is used only after a predetermined time has elapsed, this predetermined time corresponding at least to the running-in time of the unit, in particular of the pump unit.
  • This is useful so that adjust the mechanical parts of the unit, any Einfahrwidernot be overcome in the camps and then after the break-in an initially quasi-stationary operating condition can be achieved, which forms a basis for the normal performance-determining characteristics of the device, so that only deviations be detected from this state later.
  • a comparison measurement it is not necessary for a comparison measurement to approach the same operating point. Rather, based on a plurality of operating points, a surface course having a multidimensional model character and dependent on the performance of a functional unit can be determined and stored again at temporal intervals and stored and compared with the or a previously determined one, the distance of the surface curves in a predetermined operating point or operating range or the volume spanned between the surface sections are used as a measure of the change in efficiency.
  • Such an evaluation is particularly advantageous because it can be done during continuous operation without any intervention in the performance of the machine.
  • Such a method is particularly advantageous in centrifugal pump units, as used for example as heating circulation pumps, which usually run on constantly changing operating points.
  • a Kálmán filter is advantageously used. This iteration method makes it possible to determine the course of the area sufficiently accurately with only a comparatively small number of measured operating points in order to be able to detect the deviations in question and to be able to determine them quantitatively.
  • the inventive method can in principle in any energy conversion devices consisting of several functional with each other linked functional units are used for monitoring. Particularly advantageous is the use of centrifugal pump units, compressors, heating systems, refrigerators, freezers and the like, which are typically operated over years and decades, without a decrease in efficiency would notice or announces a failure.
  • the monitoring method according to the invention is both suitable for detecting and displaying a poor running, ie a deterioration in efficiency, which makes early replacement of the unit or at least one functional unit of the unit appear economically sensible, as well as, for example, in freezers or freezers of particular advantage to be able to display the anticipated failure of the unit to provide timely replacement.
  • the inventive method can be used effectively to indicate an imminent failure in advance. It goes without saying that appropriate characteristic values are then suitably specified which were previously determined in the laboratory test, so that the downtimes can at least roughly be determined on the basis of the change in efficiency or the change in power of the machine.
  • the method according to the invention can advantageously be implemented in the form of a software program in the digital control and regulating electronics which are present anyway in modern units.
  • control and regulating electronics can be provided both in the unit itself and in the terminal or terminal box of the unit.
  • the method according to the invention in a centrifugal pump unit with an electric motor and a centrifugal pump driven by it in a device provided there for monitoring the performance of at least one functional unit of the unit applied.
  • a compressor unit with an electric motor and a positive displacement pump driven therefrom such a device according to the invention for monitoring the power characteristic, in particular for the efficiency detection and monitoring can be provided.
  • a cooling unit can be provided with an electric motor, with a positive displacement pump driven therefrom, with an evaporator and with a capacitor with a device for monitoring the performance, which operates according to the inventive method, wherein the monitoring of the performance characteristics not only on engine and Positive displacement pump limited, but advantageous evaporator and condenser includes.
  • a reduction in the efficiency is determined by the fact that the duration of the compressor is monitored after installation of the device. This can be done, for example, by determining the running time within 24 hours and then comparing it later, for example after six months, with the resulting runtime within 24 hours. It is to be assumed in the simplest form that due to constant environmental conditions and user behavior an increasing duty cycle is due to a deterioration in the efficiency of the system. More precise conclusions can be determined by an analysis of the time course of the compressor runtime.
  • a device for monitoring the performance of the burner and at least one of these heatable water cycle can be provided in order in this way, for example, combustion residues on the primary heat exchanger and concomitant efficiency deterioration to be able to capture.
  • a corresponding signal lamp thus also an indication of the required cleaning service will be given, which can thus be determined as needed.
  • the device is designed so that it automatically starts after a predetermined time after commissioning of the unit or the system with the detection and storage for monitoring the performance characteristics, in particular for determining the effectiveness and monitoring sizes and at appropriate intervals again these sizes recorded and compared with the pre-stored and / or the originally stored variables and displays a possibly impermissibly high deviation.
  • the device therefore advantageously has a measured value memory in which at least the variables detected at the beginning of the measurement or variables derived therefrom are stored.
  • the machine is monitored as far as possible in its entirety by the method according to the invention. However, it may also be sufficient to monitor only one functional unit of the machine. This will be particularly useful if the machine has a functional unit that typically fails significantly before all other functional units due to wear or otherwise.
  • Fig. 1 is an energy conversion device consisting of the functional units 1 and 2 shown by way of example for a variety of machines, systems and units.
  • the functional units 1 and 2 are independent of each other supervised.
  • first of all the power P 1 received by the functional unit 1 is dependent on one or more variables x 1 recorded and stored, as in Fig. 1 represented by 3.
  • the variables x 1 are through u 1 and y 1 , so that the area shown in FIG. 3 corresponds to the energy balance of the functional unit 1 at the entrance.
  • a power P 2 sets in at the output, which in turn depends on the variables x 1 is. This area is shown in FIG.
  • the functional units 1 and 2 are functional, z. B.
  • the representation 4 of the representation 5 corresponds to the power P 2 here in dependence on x 2 defined according to the energy balance at the input of the functional unit 2, depending on the variables u 2 and y 2 .
  • a power P 3 At the output of the functional unit 2 is a power P 3 , as shown in FIG. 6 and dependent on x 2 is.
  • the surfaces marked by hatching in FIGS. 3 to 6 are determined at the beginning of the method. This can be factory-made or only after some time in operation. This can be done as an initialization process or during operation. In any case, it takes place at a time t 1 , which, if several operating points are to be detected, can also represent a time range. At a time t 2 , an energy balance at the input of the functional unit 1, at the output of the functional unit 1, at the input of the functional unit 2 and at the output of the functional unit 2 is then created in the same way. The corresponding representations are marked 3 ', 4', 5 'and 6'.
  • determined sizes or areas with the determined and stored at time t 1 sizes or areas efficiency reductions of individual functional units 1, 2 can be detected wherein the distance of the hatched areas in 3 and 3 'and 4 and 4' and 5 and 5 'and 6 and 6', respectively, at a predetermined operating point determined or the volume spanned between these areas is determined and when a predetermined value is exceeded, a signal is generated, which indicates to the user that in the machine efficiency deterioration has taken place, which is an exchange or a repair or an immediate replacement or an immediate repair expedient.
  • different signals may be generated, for example, a first warning signal indicative of a certain level of reduced efficiency and a second warning signal indicative of such a reduction in efficiency requiring replacement or repair. Since the functional units 1 and 2 are monitored separately from one another, it can furthermore be determined which of the functional units is wholly or partially responsible for the reduction in efficiency.
  • the constants are a p2 , a p1 , a p0, and p offset .
  • Fig. 2a illustrated three-dimensional areas, which describe the power at the interfaces before, between and behind the functional units 1 a and 2 a, are detected and stored at a time t 1 .
  • the detection typically occurs during normal operation for a short period of time which is negligibly small with respect to the monitoring interval (time from T 1 to t 2 ), after which, after a longer period of time, namely at time t 2, this process is repeated so that the surfaces according to the representations 8 ', 9' and 10 'result.
  • Fig. 2a In monitoring as they are based on Fig. 2a is displayed, there is a performance monitoring in front of and behind each functional unit 1 a, 2a. However, this can be dispensable depending on the application. Also, it is not absolutely necessary to determine the surface curves having the multi-dimensional and model character representing the input or output power, as defined by equations 8, 9 and 10, but rather, like the embodiment according to FIG Fig. 2b clarified, for example, in place of the power P 3 as shown in Figure 10 in Fig. 2a Alternatively, the hydraulic power characteristic can be determined, that is, the differential pressure applied by the pump 2a as a function of the drive speed ⁇ r and the flow rate q. Which is detected and stored at time t 1 .
  • Fig. 2c is another way of monitoring such a pump unit consisting of the functional units 1a and 2a shown.
  • the power P 1 is detected there as a function of ⁇ e and Q as shown in FIG. 8 a and is compared with the corresponding power as shown in FIG. 8 a 'at a time interval between t 1 and t 2 .
  • the power P 2 is determined there as a function of ⁇ p and ⁇ r , as the illustration according to 9a or 9a 'illustrates.
  • the efficiency of the motor ⁇ m is the quotient of P 2 and P 1 and is dependent on ⁇ e (the supply frequency ) and s , the slip of the motor.
  • the motor efficiency is in Fig. 2c in the representation 11 a represented by the area in the diagram in each operating point.
  • the power P 2 is shown as a function of ⁇ p and ⁇ r .
  • the power P 1 of the motor 1 a is likewise represented in the form of a surface as a function of the supply frequency and the flow rate of the pump.
  • Analogous to Fig. 1 are the basis of the surfaces 8a, 9a, 11a and 11b shown performances and efficiencies at time t 1 were determined and stored, whereas at time t 2 corresponding comparison surfaces have been determined, as a measure of the change in efficiency of the distance of the surfaces in the Representations 11a and 11 a 'and 11 b and 11 b' are used.
  • the efficiency of the pump 2a decreases in the course of time t 1 to t 2 due to bearing damage
  • the surfaces in the representations 11 a and 11 a ' will be in one another, whereas the surfaces in the representations 11 b and 11 b' a clear distance from each other, based on an operating point. Instead of this distance, a volume can also be defined.
  • k ⁇ V n / (n-1) / ( 2 ⁇ )
  • n is a non-1 constant that describes the heat flow during compression. If the process runs under constant temperature, then n can also be assumed to be constant.
  • the engine power P 1 can be monitored in an analogous manner as indicated above by equation (8).
  • Fig. 4 Based on Fig. 4 is the inventive method for a refrigerator shown consisting of a motor 1c, a positive displacement pump 2c, whose output is applied to an evaporator 3c, which is connected via a throttle 4c to a capacitor 5c, whose Output is connected to the input of the pump 2c line connected.
  • the refrigerator is marked 7c.
  • the equation 15 describes the power P 2 at the input of the compressor whereas the equation 17, the power at the output describes the compressor.
  • the areas to be determined here for determining the power at the interfaces of the functional units may be two-dimensional or multi-dimensional.
  • the area according to illustration 17 is two-dimensional, ie a line.
  • the other surfaces shown here are all three-dimensional. It is understood that these surfaces may possibly be more than three-dimensional, depending on the type of machine to be monitored and the underlying mathematical physical relationships.
  • the monitoring is carried out in an analogous manner by determining the power at the interfaces of the functional units surfaces according to representations 14, 15 and 17 at time t 1 and after a time interval at time t 2 (then resulting in the surfaces according to the Representations 14 '15' and 17 '), to then determine by determining the distance of the surfaces or the volume spanned therebetween, which of the functional units 1 c, 2 c, by which degree have fallen in their efficiency.
  • the method according to the invention can be used in a wide variety of devices, such as Aggregates, machines and equipment are used, which advantageously always the multi-dimensional surfaces are determined, each defining the power at the interfaces of the functional units to each other in any operating point and thus give a reliable measure of the performance of the functional units and appropriate evaluation of the entire device if they are compared with each other at different times (eg, t 1 and t 2 ).
  • times t 1 and t 2 are here to be understood as examples only, expediently the values determined at time t 1 always remain stored in order to be able to compare them with later ones, which however does not rule out that intermediate values are also stored if necessary, also to record the speed of the change. This too can be evaluated in a corresponding evaluation device.
  • EP 1 564 411 A1 where comparable evaluations are described in detail.
  • two-dimensional or more-dimensional surfaces have always been used to determine the power balance at the interfaces of the functional units, since this allows an evaluation virtually independent of the respective operating point. At substantially constant operating points, these evaluations can also be simplified by comparing individual quantities at intervals with each other, via which conclusions can be drawn about the efficiency indirectly or directly.
  • the two- or multi-dimensional surfaces in question are advantageously determined during operation, whereby it is attempted by suitable iteration methods to achieve a high accuracy of the surfaces on the basis of as few as possible different operating points. This can be achieved in particular by using the Kámán filter, as has already been described above. It however, other suitable iteration methods may be used. It is also conceivable that, for example, in a pump unit, certain operating points are approached targeted to capture the power balance representing surface area with the highest possible accuracy or to dispense with targeted detection of defined operating points on the determination of such areas.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)

Claims (18)

  1. Procédé de surveillance d'un dispositif de transformation d'énergie composé de plusieurs unités fonctionnelles reliées de façon fonctionnelle les unes aux autres, selon lequel des grandeurs d'au moins une unité fonctionnelle dépendant de la puissance sont captées et/ou calculées automatiquement à des intervalles de temps et sont comparées entre elles ou à des valeurs qui en sont dérivées et/ou à des valeurs de consigne, et selon lequel un signal correspondant est engendré en fonction de la comparaison, caractérisé en ce que des grandeurs dépendant de la puissance, d'au moins deux unités fonctionnelles reliées de façon fonctionnelle les unes aux autres sont captées et/ou calculées automatiquement à des intervalles de temps, les grandeurs de sortie dépendant de la puissance, ou des grandeurs qui en sont déduites, de l'une des unités fonctionnelles formant les grandeurs d'entrée dépendant de la puissance, de l'unité fonctionnelle fonctionnellement en aval.
  2. Procédé selon la revendication 1, caractérisé en ce que les grandeurs de comparaison ou les fonctions de comparaison sont formées sur la base des grandeurs dépendant de la puissance qui sont destinées à ou sont utilisables pour une comparaison de puissance indépendant d'un point de fonctionnement.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'il est mis en oeuvre pour une optimisation de fonctionnement et/ou une surveillance de la consommation d'énergie ou du rendement d'un groupe motopompe, notamment d'un groupe motopompe à pompe centrifuge entraîné par un moteur électrique dans lequel, en fonctionnement, au moins une grandeur dépendant de la puissance du moteur et au moins une grandeur hydraulique de la pompe ou au moins deux grandeurs hydrauliques de la pompe sont comparées les unes aux autres dans un intervalle de temps ou à l'aide d'un lien mathématique ou à des valeurs de consigne et en ce qu'un signal représentatif de l'état de fonctionnement du groupe motopompe est engendré en fonction de la comparaison.
  4. Procédé selon la revendication 3, caractérisé en ce qu'il est mis en oeuvre pendant le fonctionnement de pompage prévu.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'il est répété à des intervalles de temps, la comparaison étant faite sur la base des grandeurs précédemment saisies ou des valeurs de consigne.
  6. Procédé selon l'une des revendications 3 à 5, caractérisé en ce que sont saisies et stockées d'abord des grandeurs électriques du moteur déterminant la puissance d'entrée du moteur et au moins une grandeur déterminant le point de fonctionnement hydraulique de la pompe et que sont saisies, à un intervalle de temps lorsqu'un point de fonctionnement hydraulique est atteint qui correspond à celui précédemment saisi, les grandeurs électriques déterminant la puissance d'entrée du moteur et qu'elles sont comparées aux grandeurs stockées d'abord et qu'il est engendré ensuite un signal correspondant.
  7. Procédé selon l'une des revendications 3 à 6, caractérisé en ce que sont saisies et stockées d'abord des grandeurs électriques du moteur déterminant la puissance d'entrée du moteur et des grandeurs déterminant le point de fonctionnement hydraulique de la pompe et que ces grandeurs sont saisies de nouveau à un intervalle de temps, les grandeurs saisies étant transférées sur la base d'une modélisation mathématique électrique du moteur et/ou d'une modélisation mathématique hydraulique de la pompe et qu'elles sont comparées ensuite aux grandeurs stockées, ou inversement, un signal correspondant étant engendré ensuite.
  8. Procédé selon l'une des revendications 3 à 7, caractérisé en ce que la saisie de grandeurs déterminant la puissance du moteur et/ou de la pompe est effectuée seulement après écoulement d'un temps prédéterminé qui correspond au moins au temps de rodage du groupe motopompe.
  9. Procédé selon la revendication 8, caractérisé en ce que, après écoulement du temps prédéterminé, pendant la phase de surveillance, au moins un profil de fonctionnement est saisi automatiquement et que la consommation d'énergie à prévoir est déterminée en prenant en compte le changement de rendement déterminé le cas échéant.
  10. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'il est déterminée et stockée, sur la base de plusieurs points de fonctionnement, une évolution d'aire dépendant de la puissance d'une unité fonctionnelle et ayant un caractère de modèle multidimensionnel et que de telles évolutions d'aire sont déterminées à des intervalles de temps et qu'elles sont comparées à celles précédemment déterminées.
  11. Procédé selon la revendication 10, caractérisé en ce que la distance des évolutions d'aire à un point de fonctionnement prédéterminé ou le volume s'étendant entre les aires est prise comme mesure pour le changement de rendement, notamment pour une dégradation du rendement.
  12. Procédé selon la revendication 11, caractérisé en ce qu'il est utilisé, pour déterminer l'évolution d'aire sur la base des points de fonctionnement, un filtre de Kalman.
  13. Groupe motopompe à pompe centrifuge avec un moteur électrique et une pompe centrifuge entraînée par celui-ci, caractérisé en ce qu'il est prévu un dispositif de surveillance de la caractéristique de puissance d'au moins une unité fonctionnelle du groupe qui fonctionne selon un procédé selon l'une des revendications précédentes.
  14. Groupe moto-compresseur avec un moteur électrique et une pompe de refoulement entraînée par celui-ci, caractérisé en ce qu'il est prévu un dispositif de surveillance de la caractéristique de puissance d'au moins une unité fonctionnelle du groupe, qui fonctionne selon un procédé selon l'une des revendications précédentes.
  15. Groupe réfrigérant avec un moteur électrique, avec une pompe de refoulement entraînée par celui-ci, avec un évaporateur et avec un condenseur, caractérisé en ce qu'il est prévu un dispositif de surveillance de la caractéristique de puissance d'au moins une unité fonctionnelle du groupe, qui fonctionne selon un procédé selon l'une des revendications précédentes.
  16. Installation de chauffage avec un brûleur et avec un circuit d'eau conçu pour être chauffé par celui-ci, caractérisé en ce qu'il est prévu un dispositif de surveillance de la caractéristique de puissance d'au moins une unité fonctionnelle de l'installation, qui fonctionne selon un procédé selon l'une des revendications précédentes.
  17. Groupe ou installation selon l'une des revendications précédentes, caractérisé en ce que le dispositif commence automatiquement, après un temps prédéterminé après la mise en fonctionnement du groupe ou de l'installation, à saisir et stocker les grandeurs essentielles pour déterminer le rendement.
  18. Groupe ou installation selon la revendication 17, caractérisé en ce que le dispositif comprend une mémoire de données de mesure dans laquelle sont stockées au moins les grandeurs saisies au début du mesurage ou des grandeurs qui en sont dérivées.
EP07018530.1A 2007-09-20 2007-09-20 Procédé de surveillance d'un dispositif de transformation d'énergie Active EP2039939B2 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP07018530.1A EP2039939B2 (fr) 2007-09-20 2007-09-20 Procédé de surveillance d'un dispositif de transformation d'énergie
PCT/EP2008/007041 WO2009039934A1 (fr) 2007-09-20 2008-08-28 Procédé de surveillance d'un système de conversion d'énergie
JP2010525224A JP5439378B2 (ja) 2007-09-20 2008-08-28 エネルギー変換装置を監視する方法
US12/679,054 US20100300220A1 (en) 2007-09-20 2008-08-28 Method for monitoring an energy conversion device
CN200880108089.6A CN101802413B (zh) 2007-09-20 2008-08-28 用于监测能量转换装置的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07018530.1A EP2039939B2 (fr) 2007-09-20 2007-09-20 Procédé de surveillance d'un dispositif de transformation d'énergie

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EP2039939A1 EP2039939A1 (fr) 2009-03-25
EP2039939B1 true EP2039939B1 (fr) 2017-08-09
EP2039939B2 EP2039939B2 (fr) 2020-11-18

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EP (1) EP2039939B2 (fr)
JP (1) JP5439378B2 (fr)
CN (1) CN101802413B (fr)
WO (1) WO2009039934A1 (fr)

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US20130204546A1 (en) * 2012-02-02 2013-08-08 Ghd Pty Ltd. On-line pump efficiency determining system and related method for determining pump efficiency
JP2014202144A (ja) * 2013-04-05 2014-10-27 新日本造機株式会社 遠心ポンプの診断方法
EP4365453A2 (fr) * 2016-12-30 2024-05-08 Grundfos Holding A/S Procédé de fonctionnement d'un groupe motopompe à commande électronique
DE102018200651A1 (de) * 2018-01-16 2019-07-18 KSB SE & Co. KGaA Verfahren zur Eigendiagnose des mechanischen und/oder hydraulischen Zustandes einer Kreiselpumpe
EP3567256A1 (fr) * 2018-05-11 2019-11-13 Grundfos Holding A/S Module de surveillance et procédé permettant d'identifier un scénario de fonctionnement dans une station de pompage des eaux usées
FR3094421A1 (fr) * 2019-03-29 2020-10-02 Wilo Intec Procede de maintenance predictive d’une pompe de circulation d’un fluide
EP4019779A1 (fr) 2020-12-23 2022-06-29 Grundfos Holding A/S Système et procédé de surveillance de pompe pour associer un état de fonctionnement actuel d'un système de pompe à un ou plusieurs scénarios de panne
CN114235271B (zh) * 2021-11-12 2024-01-12 潍柴动力股份有限公司 压差传感器的露点检测方法、装置、存储介质和设备

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US4584654A (en) 1982-10-21 1986-04-22 Ultra Products Systems, Inc. Method and system for monitoring operating efficiency of pipeline system
DE3402120A1 (de) 1984-01-23 1985-07-25 Rheinhütte vorm. Ludwig Beck GmbH & Co, 6200 Wiesbaden Verfahren und vorrichtung zur regelung verschiedener betriebsparameter bei pumpen und verdichtern
JPS6163491U (fr) 1984-10-02 1986-04-30
US5742500A (en) 1995-08-23 1998-04-21 Irvin; William A. Pump station control system and method
US6260004B1 (en) 1997-12-31 2001-07-10 Innovation Management Group, Inc. Method and apparatus for diagnosing a pump system
EP1072795A1 (fr) 1998-04-03 2001-01-31 Ebara Corporation Systeme de diagnostic destine a un mecanisme a fluide
EP1171714B1 (fr) 1999-03-24 2005-03-16 ITT Manufacturing Enterprises Appareil et procede de commande d'un systeme de pompe
US20030133808A1 (en) 2002-01-17 2003-07-17 Itt Manufacturing Enterprises, Inc. Centrifugal pump performance degradation detection
WO2005064167A1 (fr) 2003-12-19 2005-07-14 Ksb Aktiengesellschaft Mesure de quantites
EP1564411A1 (fr) 2004-02-11 2005-08-17 Grundfos A/S Procédé de detection des erreurs de fonctionnement d'une unité de pompage
DE102007009301A1 (de) 2006-03-08 2007-09-13 ITT Manufacturing Enterprises, Inc., Wilmington Verfahren und Vorrichtung zum Pumpenschutz ohne den Einsatz traditioneller Sensoren
DE102007022348A1 (de) 2007-05-12 2008-11-13 Ksb Aktiengesellschaft Einrichtung und Verfahren zur Störungsüberwachung

Also Published As

Publication number Publication date
JP5439378B2 (ja) 2014-03-12
WO2009039934A1 (fr) 2009-04-02
JP2010539380A (ja) 2010-12-16
EP2039939A1 (fr) 2009-03-25
EP2039939B2 (fr) 2020-11-18
CN101802413B (zh) 2014-07-30
CN101802413A (zh) 2010-08-11
US20100300220A1 (en) 2010-12-02

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