EP2354554B1 - Procédé de détermination de la relation fonctionnelle de pompes - Google Patents

Procédé de détermination de la relation fonctionnelle de pompes Download PDF

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Publication number
EP2354554B1
EP2354554B1 EP10000446.4A EP10000446A EP2354554B1 EP 2354554 B1 EP2354554 B1 EP 2354554B1 EP 10000446 A EP10000446 A EP 10000446A EP 2354554 B1 EP2354554 B1 EP 2354554B1
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EP
European Patent Office
Prior art keywords
pumps
changes
pump
hydraulic
diagonal
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EP10000446.4A
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German (de)
English (en)
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EP2354554A1 (fr
Inventor
Carsten Skovmose Kalleøe
Jan Carøe Aarestrup
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Grundfos Management AS
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Grundfos Management AS
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Priority to EP10000446.4A priority Critical patent/EP2354554B1/fr
Priority to US13/008,964 priority patent/US9388813B2/en
Priority to CN201110030312.3A priority patent/CN102128163B/zh
Publication of EP2354554A1 publication Critical patent/EP2354554A1/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
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/12—Combinations of two or more pumps
    • F04D13/14—Combinations of two or more pumps the pumps being all of centrifugal type
    • 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
    • F04D15/0072—Installation or systems with two or more pumps, wherein the flow path through the stages can be changed, e.g. series-parallel
    • 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

Definitions

  • the invention relates to a method for determining the functional relationship of several controllable in their speed pumps in a system.
  • a plurality of pumps i. Centrifugal pumps installed with this driving electric motor to reliably supply the individual plant parts with fluid or heat.
  • Modern pumps of this type are typically frequency converter controlled, so that they can supply a large bandwidth in terms of performance and can be operated differently depending on requirements.
  • a plurality of such pumps work together in a plant, whether by parallel, series or combination thereof, there results a complex hydraulic network, first of all in its structure, i. Its functional relationship must be known in order to optimize the operation of the totality of the pumps energetically. Especially with older systems, it may happen that the hydraulic circuit diagram is no longer available. Also, this can not always be determined clearly with sufficient accuracy based on the existing piping. Then it is necessary to determine the functional relationship of the pumps.
  • the invention has the object to provide a method for determining the functional relationship of several controllable in their speed pumps in a system, with the This functional relationship, so to speak, the hydraulic circuit diagram of the system is clearly determined.
  • the functional relationship of several controllable in their speed pumps in a system is determined by the fact that at least one pump, the speed is changed and from the resulting hydraulic reaction at least one functional relationship of the system is determined.
  • one or more pumps with a different speed can be controlled in order to determine this relationship.
  • to determine whether two pumps are connected in parallel or in series are sufficient to control one of the pumps at an increased speed to then determine by pressure or flow measurement compared to the original state in which way these pumps are connected.
  • the method according to the invention can be implemented in the digital frequency converter electronics in the case of the advantageous use of frequency-converter-controlled pumps, in which case a data connection of the pumps should be formed wirelessly or wirelessly, for example via network cables, in order to coordinate the pumps according to the method and furthermore the hydraulic variables to detect at the pumps or at the consumers.
  • this method can also be implemented in a separate controller, which is connected in a wired or wireless manner to the pumps and possibly to the consumers or their sensors.
  • the method according to the invention offers the great advantage that it can be carried out with equipment that is typically already present in the heating system, ie. with the exception of the controller and the data network, no additional measures should be provided in the system.
  • control and data combination can be integrated with a suitable design of the pump in this at only a small additional cost.
  • a pump group consists of two or more pumps connected in parallel and / or in series. The first assignment step is therefore to determine on consumer-side size detection, whether the pumps are hydraulically interconnected as individual pumps or in groups in the system.
  • step a in which case the pressure difference generated by the respective pump, for example by a differential pressure sensor to the respective pump is detected. It is then successively each one of the pumps controlled with a modified, preferably increased pressure and detects the resulting differential pressure change or speed changes of the other pumps, after which the assignment of the pump within the pump group is determined based on the detected size changes, as this is based on the hydraulic Basic laws for parallel or Erasmusscnies of pumps results.
  • To the functional relationship within the pump group can determine either the pumps of a pump group subsequently controlled with changed, preferably increased speed and the flow rate through the respective pump are detected or the pumps are sequentially each driven to generate an increased Differnz horres then adjusting pressure levels of this and the other pumps detected and Based on the possibly resulting changes, the assignment of the pumps is determined within the pump group.
  • the pump or the pumps which in their speed change two or more consumers or consumer groups according to the speed change increasing or decreasing influence according to the number of affected consumers or consumer groups assigned. It can thus be determined which pumps apply which load and thus the assignment of the pumps are determined among each other.
  • the method according to the invention is to be carried out by detecting the hydraulic variables of the pumps, for example the pressure or the volume flow, which is generally more favorable in terms of equipment, since frequency converter-controlled heating circulation pumps are nowadays regularly equipped with differential pressure sensors, then it is expedient to start with the Method to determine whether the hydraulic system is a hydraulic network or whether it consists of two or more independent parts of the system. In independent parts of the system has a speed change or pressure increased control of a pump in the other part of any influence, so that in this way with the method initially the hydraulically miteinender connected equipment parts can be determined.
  • independent parts of the system has a speed change or pressure increased control of a pump in the other part of any influence, so that in this way with the method initially the hydraulically miteinender connected equipment parts can be determined.
  • hydraulic variables of the pumps typically pressure or differential pressure or volumetric flow
  • the volume flows and thus hydraulic changes in volume flow changes are detected, then the functional relationship of the pumps can be determined as follows, wherein the changes in driving a pump with increasing speed noted below are.
  • the changes can also be used in an analogous manner if the activation takes place at a reduced speed:
  • a matrix is formed in which the hydraulic changes of at least one hydraulically independent part of the installation are detected, whereby the direction changes are advantageously also detected here, ie the matrix with the values 0 for constant, +1 for rising and -1 is formed for falling.
  • line by line to each pump which results in their control at a different speed changes in the hydraulic variables at this pump and at the other pumps.
  • each column is assigned a column, with the rows within the matrix sorted according to their number of ascending changes (+1) ascending from top to bottom and the columns corresponding to their number of ascending changes (+1) ascending from left to right ,
  • the associated column of this pump connects at the same place in the upper left of the matrix.
  • the pump with the most increasing changes is in the last, so lowest line, which pump is then also the last column, so assigned the rightmost column.
  • the matrix is divided by a diagonal, which runs from one to the other matrix axis which quasi cuts or erases the fields of the matrix, in which an increasing size change is typically a 1. These are the fields where the pump assignment of column and row match.
  • the pumps are determined which are directly associated with a consumer or a consumer group, i. promote in such a consumer or a consumer group without the interposition of other pumps. These are the pumps where there is no increasing change in hydraulic sizes in a row below the diagonal or in a column above the diagonal of the matrix.
  • the first pump of the matrix which is assigned to the first row and the first column and which lies on the diagonal may also belong. This results from the row or column sorting.
  • the method according to the invention it is determined by evaluating the matrix how many pumps of the respective considered pump are connected upstream hydraulically. For this purpose, the number of increasing changes of the hydraulic variables in the columns under the diagonal or in the lines above the diagonal of the matrix is detected. This number corresponds to the number of pumps upstream of the respective pump, whereby no statement is made about the hydraulic connection of the upstream pumps.
  • the matrix is formed in the same way as described above, it can be determined which pumps are hydraulically next to each other and which are hydraulically connected in series, based on the number of increasing changes in the hydraulic variables in each row below or in each column above one Divide matrix and extending from one to the other matrix axis diagonal. It can according to a development of the According to the method of the invention, the number of increasing changes in the hydraulic magnitudes in the lines below the diagonal or in the columns across the diagonal of the matrix can be used to determine the number of pumps hydraulically connected downstream of the respective pump, thus the number can be assigned.
  • the inventive method can be evaluated when hydraulic variables of the pump, either be carried out by the fact that the flow rate of the pump is detected or alternatively the pressure or the differential pressure of the pump. If the determination of the pressure changes to take place, according to the invention, in the same manner as described above, a matrix is formed, in which the hydraulic changes of at least one hydraulically independent part of the plant are detected, whereby line by line to each pump in their control for the promotion with changed Pressure is given to resulting changes in the hydraulic magnitude of this and the other pumps and wherein each pump is assigned a column.
  • the rows are sorted according to their number of decreasing changes (-1) ascending from top to bottom and the columns according to their number decreasing changes from left to right and then using the number of decreasing changes in the hydraulic size in each column below or in each row one dividing the matrix and determining from one to the other matrix axis extending diagonal, which pumps are hydraulically next to each other and which are hydraulically connected in series.
  • the diagonal forms a symmetrical division of the matrix and passes through the fields always indicated as increasing change, which in the row and column respectively relate to the same pump. These fields are not counted as in the above, even in the subsequent evaluation.
  • a different number of decreasing changes in hydraulic sizes in columns below the diagonal or in rows above the diagonal of the matrix indicates the series connection of the respective pumps.
  • the number of decreasing changes of the hydraulic variables in the columns below the diagonal or in the lines above the diagonal of the matrix indicates according to a development of the method according to the invention the number of the respective pump hydraulically upstream pumps.
  • the number of decreasing changes of the hydraulic variables in the rows below the diagonal or in the columns above the diagonal of the matrix indicates the number of pumps in each case hydraulically connected downstream.
  • FIG. 1 and FIG. 6 shown hydraulic system is not to be explained in detail here heating system. It is equipped with a total of 11 pumps PU1-PU11. These altogether 11 pumps supply 6 consumers V1-V6. These consumers may be single consumers, but are typically consumer groups, such as a network of parallel heat exchangers, as is customary in housing for space heating, which may also be connected in groups in parallel and / or in series. Each consumer is assigned a sensor S1, S3, S6, S7, S10 or S11, which detects the pressure dropping at the consumer.
  • the plant consists of two hydraulically independent plant components, namely the in FIG. 1a Plant section shown below on the right consisting of the pump PU11 and the consumer V6 and the rest of the plant component.
  • a pump PU 10 a consumer V5
  • parallel feed two pumps PU8 and PU9 connected in parallel via a downstream pump PU6 the consumer V3 and in parallel via a downstream pump PU7 the consumer V4.
  • the pumps PU1, PU2 and PU3 are supplied via the pumps PU5 and PU4 connected in series, which in turn, however, supply the load V1 or the load V2 to the consumer in parallel.
  • This arrangement is chosen arbitrarily and serves exclusively to illustrate the method according to the invention.
  • all pumps PU1 to PU11 are first of all actuated at a constant rotational speed, typically an average rotational speed which is selected so that the system is operated as intended, but reserves are present, so that the pumps may be in contact with the increased rotational speed can be controlled.
  • the pumps are typically frequency converter-controlled heating circulation pumps as they are customary in the market.
  • All pumps are operated at a constant speed, this speed should be constant relative to the respective pump, among each other, the speeds may of course differ. If one of the pumps has to be controlled with a different speed during the process due to the system's demand, this can be done if the correspondingly changed speed is taken into account mathematically. During this control with constant speed, pressures are determined at the sensors S1, S3, S6, S7, S10 and S11. It is now a first pump, for example, the pump PU1 driven at a different speed, for example, an increased speed and detected by the sensors S1, S3, S6, S7, S10 and S11, which then possibly adjusting changes or non-changes.
  • a matrix is expediently set up as in FIG. 1b is shown.
  • the pumps PU1 - PU11 and on the other one are on one, here vertical axis.
  • the horizontal axis sensors S1 - S11 listed and then to capture in the resulting fields, if and possibly what hydraulic changes result when driving a pump with increased speed.
  • a categorization into 0, -1 and 1 takes place, where 0 stands for no change, 1 for an increasing hydraulic variable and -1 for a falling hydraulic variable.
  • the matrix representation is listed here only for simplified numerical representation, but in principle not required for the evaluation. It can now be determined on the basis of the control first of all that the pumps PU1 - PU10 have no influence on the sensor S11 and thus the consumer V6. Conversely, the pump PU11 has no influence on the consumers V1 - V5, with the result that these must be two independent parts of the system, the pump PU11 obviously only supplying the consumer V6.
  • the pumps PU4 and PU5 can be found in the same way that they supply the consumers S1 and S3, but also indirectly because the consumers V3 and V4 are supplied directly from the pump PU6 or PU7, the pumps PU4 and PU5 as a pump group
  • these consumers do not influence in the same direction shows that the pump group PU4 and PU5 and the pump PU6 and the pump PU7 are connected side by side with the pumps PU6 and PU7 are assigned to the respective consumers V3 and V4 while the pump group PU4 and PU5 the consumers V1 and V2 applied, but also not directly.
  • circuit diagram according to FIG. 1a be completely determined. Since in the above-described method only one sensor or each consumer group is assigned a sensor, a separate pump-side sensor system must be used to determine the arrangement of the pumps in the pump groups.
  • differential pressure or flow sensors as shown by the FIGS. 6-8 is shown.
  • This process proceeds in the same way, ie first all pumps are driven at a constant speed in a first step and then in a second step subsequently all pumps individually and sequentially with contrast, changed speed, typically increased speed.
  • the resulting changes are captured in a matrix as determined by FIG. 7 for the flow measurement of the pumps and by means of FIG. 8 for the differential pressure measurement on the pumps is shown.
  • the matrix is the same as the one from FIG. 1b is formed, ie 0 stands for no change in the hydraulic size of the corresponding sensor when driving the corresponding pump with increased speed, 1 stands for increasing change and -1 for falling change.
  • the sorting of the lines is performed according to the number of increasing changes in ascending order from top to bottom.
  • the uppermost line concerning the pump PU7 has a 1, namely at q11.
  • the line PU10 arranged underneath only knows one 1 namely at q10.
  • the lines PU7 and PU6 each have 3 increasing changes, the lines PU1, PU2 and PU3 respectively 5 rising changes, the line PU4 and PU5 7 increasing changes and the line PU8 and PU9 8 increasing changes. According to this order, the rows are sorted from top to bottom in ascending order.
  • Each line is assigned a pump and each column of the pump associated sensor.
  • the columns are sorted in ascending order in the same way as the pumps from left to right, so that a mirror symmetry of the matrix with respect to a diagonal D formed by the fields affecting the same pump. This diagonal extends from top left to bottom right in the matrix starting from the field PU11, q11 to the rock PU9, q9.
  • the functional relationship i.
  • the structure of the system can be determined directly from this matrix.
  • it can be determined from the zeros in the first column below the diagonal or in the first row above the diagonal that the pumps PU1-PU10 belong to a different part of the plant than the pump PU11 this pump only affects its own sensor q11.
  • the number of increasing changes in the hydraulic variables in the columns below the diagonal or mirror-symmetrically in the lines above the diagonal of the matrix indicates the number of pumps connected hydraulically upstream of the respective pump.
  • the pump PU1 which is assigned to the sensor q1 in the column q1 below the diagonal with four ones, ie four increasing changes in the hydraulic variables, which means that four pumps of the pump PU1 are connected upstream. This can be determined for each of the pumps.
  • FIG. 7 also be determined based on the number of increasing changes in the hydraulic variable in each row under or in each column on the diagonal D of the matrix, which pumps are hydraulically connected side by side and which are connected in series.
  • the number of increasing changes (+1) indicates the number of pumps which are hydraulically connected downstream of this pump.
  • You read in FIG. 7 Under PU4 the line below the diagonal D results in 3 ones, ie three downstream pumps. It is like the circuit diagram according to FIG. 6 clarified by the pumps PU1 - PU3.

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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)

Claims (25)

  1. Procédé de détermination de la relation fonctionnelle de plusieurs pompes à vitesse réglable dans une installation, dans lequel la vitesse d'au moins une pompe est modifiée et au moins une relation fonctionnelle de l'installation est déterminée à partir de la réaction hydraulique, caractérisé en ce que le procédé comprend les étapes suivantes :
    a) commander toutes les pompes à une vitesse, de préférence constante, et détecter une grandeur hydraulique pour chaque pompe ou chaque consommateur ou chaque groupe de consommateurs associé aux pompes,
    b) commander l'une ou plusieurs des pompes chacune l'une après l'autre à une vitesse modifiée par rapport à l'étape a) et détecter les variations résultantes respectives des grandeurs hydrauliques,
    c) déterminer l'affectation des pompes ou groupes de pompes aux consommateurs ou groupes de consommateurs sur la base des variations de grandeurs hydrauliques détectées.
  2. Procédé selon la revendication 1, caractérisé en ce que les pompes qui, lorsqu'elles sont commandées à une vitesse modifiée, génèrent les mêmes variations de grandeurs hydrauliques côté consommateur, sont affectées à un groupe de pompes.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la pompe ou les pompes qui, lors de leur variation de vitesse, n'influent que sur un consommateur ou un groupe de consommateurs par une augmentation ou une diminution selon la variation de vitesse, sont directement affectées au consommateur respectivement influencé ou au groupe de consommateurs respectivement influencé.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que la pompe ou les pompes qui, lors de leur variation de vitesse, influent sur deux ou plus de deux consommateurs ou groupes de consommateurs par une augmentation ou une diminution selon la variation de vitesse, sont affectées en fonction du nombre des consommateurs ou groupes de consommateurs influencés.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que la relation fonctionnelle d'un groupe de pompes est déterminée, tout d'abord, en pilotant toutes les pompes du groupe de pompes à une vitesse, de préférence, constante et en détectant une grandeur hydraulique, en particulier le débit de chaque pompe, après quoi, de façon successive, respectivement l'une des pompes est commandée à une vitesse modifiée et les variations résultantes respectives des grandeurs hydrauliques sont détectées, puis l'affectation des pompes à l'intérieur du groupe de pompes est déterminée sur la base des variations de grandeurs hydrauliques détectées.
  6. Procédé selon la revendication 1, caractérisé en ce que la relation fonctionnelle d'un groupe de pompes est déterminée, tout d'abord, en pilotant les pompes du groupe de pompes à une vitesse constante ou pour générer une différence de pression et en détectant ladite différence de pression de chaque pompe, après quoi, de façon successive, respectivement l'une des pompes est commandée à une pression modifiée, de préférence, plus élevée et les variations résultantes respectives de pression différentielle ou de vitesse sont détectées, puis l'affectation des pompes à l'intérieur du groupe de pompes est déterminée sur la base des variations de grandeurs détectées.
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que les variations des grandeurs hydrauliques sont détectées uniquement par rapport à leur direction.
  8. Procédé selon l'une des revendications précédentes, caractérisé en ce que les directions de variation sont classées selon les catégories : plus grande (+1), plus petite (-1) et égale (0).
  9. Procédé selon l'une des revendications précédentes, caractérisé en ce que, dans un premier temps, on détermine par rapport à la pompe, sur la base des grandeurs hydrauliques qui, le cas échéant, ne varient pas, quelles pompes appartiennent à quelles parties d'installation hydrauliquement indépendantes les unes des autres.
  10. Procédé selon l'une des revendications précédentes, caractérisé en ce que sont détectées comme variations hydrauliques des variations de flux de volume.
  11. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'est formée une matrice dans laquelle sont détectées les variations hydrauliques d'au moins une partie d'installation hydrauliquement indépendante, sont alors indiquées ligne par ligne pour chaque pompe les variations des grandeurs hydrauliques sur cette pompe et les autres, résultant de la commande de la pompe à vitesse modifiée, une colonne étant affectée à chaque pompe, les lignes étant triées de manière croissante du haut vers le bas en fonction du nombre de variations ascendantes et les colonnes étant triées de manière croissante de la gauche vers la droite en fonction du nombre de variations ascendantes, et, sur la base du nombre de variations ascendantes des grandeurs hydrauliques dans chaque colonne située au-dessous ou sur chaque ligne située au-dessus d'une diagonale divisant la matrice et s'étendant d'un axe de matrice à l'autre, on détermine quelles pompes sont montées hydrauliquement en parallèle et quelles pompes sont montées hydrauliquement en série.
  12. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'un nombre égal de variations ascendantes des grandeurs hydrauliques dans des colonnes situées au-dessous de la diagonale ou sur des lignes situées au-dessus de la diagonale de la matrice indique le montage en parallèle des pompes correspondantes.
  13. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'un nombre différent de variations ascendantes des grandeurs hydrauliques dans des colonnes situées au-dessous de la diagonale ou dans des rangées situées au-dessus de la diagonale de la matrice indique le montage en série des pompes correspondantes.
  14. Procédé selon l'une des revendications précédentes, caractérisé en ce que l'absence de variation ascendante des grandeurs hydrauliques sur une ligne située au-dessous de la diagonale et dans une colonne située au-dessus de la diagonale de la matrice indique l'affectation directe de la pompe correspondante à un consommateur ou à un groupe de consommateurs.
  15. Procédé selon l'une des revendications précédentes, caractérisé en ce que le nombre de variations ascendantes des grandeurs hydrauliques dans les colonnes situées au-dessous de la diagonale ou sur les lignes situées au-dessus de la diagonale de la matrice indique le nombre des pompes montées hydrauliquement en amont de la pompe respective.
  16. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'est formée une matrice dans laquelle sont répertoriées les variations hydrauliques d'au moins une partie d'installation hydrauliquement indépendante, sont alors indiquées ligne par ligne pour chaque pompe les variations des grandeurs hydrauliques sur cette pompe et les autres, résultant de la commande de la pompe à vitesse modifiée, une colonne étant affectée à chaque pompe, les lignes étant triées de manière croissante du haut vers le bas en fonction du nombre de variations ascendantes et les colonnes étant triées de manière croissante de la gauche vers la droite en fonction du nombre de variations ascendantes, et, sur la base du nombre de variations ascendantes des grandeurs hydrauliques sur chaque ligne située au-dessous ou dans chaque colonne située au-dessus d'une diagonale divisant la matrice et s'étendant d'un axe de matrice à l'autre, on détermine quelles pompes sont montées hydrauliquement en parallèle et quelles pompes sont montées hydrauliquement en série.
  17. Procédé selon l'une des revendications précédentes, caractérisé en ce que le nombre de variations ascendantes des grandeurs hydrauliques sur les lignes situées au-dessous de la diagonale ou dans les colonnes situées au-dessus de la diagonale de la matrice indique le nombre des pompes montées hydrauliquement en aval de la pompe respective.
  18. Procédé selon l'une des revendications précédentes, caractérisé en ce que sont détectées comme variations hydrauliques des variations de pression.
  19. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'est formée une matrice dans laquelle sont répertoriées les variations hydrauliques d'au moins une partie d'installation hydrauliquement indépendante, sont alors indiquées ligne par ligne pour chaque pompe les variations des grandeurs hydrauliques sur cette pompe et les autres, résultant de la commande de la pompe pour le refoulement à une pression modifiée, une colonne étant affectée à chaque pompe, les lignes étant triées de manière croissante du haut vers le bas en fonction du nombre de variations ascendantes et les colonnes étant triées de manière croissante de la gauche vers la droite en fonction du nombre de variations ascendantes, et, sur la base du nombre de variations descendantes des grandeurs hydrauliques dans chaque colonne située au-dessous ou sur chaque ligne située au-dessus d'une diagonale divisant la matrice et s'étendant d'un axe de matrice à l'autre, on détermine quelles pompes sont montées hydrauliquement en parallèle et quelles pompes sont montées hydrauliquement en série.
  20. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'un nombre égal de variations descendantes des grandeurs hydrauliques dans des colonnes situées au-dessous de la diagonale et sur des lignes au-dessus de la diagonale de la matrice indique le montage en parallèle des pompes correspondantes.
  21. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'un nombre différent de variations descendantes des grandeurs hydrauliques dans des colonnes situées au-dessous de la diagonale ou sur des lignes situées au-dessus de la diagonale de la matrice indique le montage en série des pompes correspondantes.
  22. Procédé selon l'une des revendications précédentes, caractérisé en ce que l'absence de variation descendante des grandeurs hydrauliques sur une ligne située au-dessous de la diagonale et dans une colonne située au-dessus de la diagonale de la matrice indique l'affectation directe de la pompe correspondante à un consommateur ou à un groupe de consommateurs.
  23. Procédé selon l'une des revendications précédentes, caractérisé en ce que le nombre de variations descendantes des grandeurs hydrauliques dans les colonnes situées au-dessous de la diagonale ou sur les lignes situées au-dessus de la diagonale de la matrice indique le nombre des pompes montées hydrauliquement en amont de la pompe respective.
  24. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'est formée une matrice dans laquelle sont répertoriées les variations hydrauliques d'au moins une partie d'installation hydrauliquement indépendante, sont alors indiquées ligne par ligne pour chaque pompe les variations des grandeurs hydrauliques sur cette pompe et les autres, résultant de la commande de la pompe à vitesse modifiée, une colonne étant affectée à chaque pompe, les lignes étant triées de manière croissante du haut vers le bas en fonction du nombre de variations descendantes et les colonnes étant triées de manière croissante de la gauche vers la droite en fonction du nombre de variations descendantes, et, sur la base du nombre de variations descendantes des grandeurs hydrauliques dans chaque colonne située au-dessous ou sur chaque ligne située au-dessus d'une diagonale divisant la matrice et s'étendant d'un axe de matrice à l'autre, on détermine quelles pompes sont montées hydrauliquement en parallèle et quelles pompes sont montées hydrauliquement en série.
  25. Procédé selon l'une des revendications précédentes, caractérisé en ce que le nombre de variations descendantes des grandeurs hydrauliques sur les lignes situées au-dessous de la diagonale ou dans les colonnes situées au-dessus de la diagonale de la matrice indique le nombre des pompes montées hydrauliquement en aval de la pompe respective.
EP10000446.4A 2010-01-19 2010-01-19 Procédé de détermination de la relation fonctionnelle de pompes Active EP2354554B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP10000446.4A EP2354554B1 (fr) 2010-01-19 2010-01-19 Procédé de détermination de la relation fonctionnelle de pompes
US13/008,964 US9388813B2 (en) 2010-01-19 2011-01-19 Method for determining the functional relation of several pumps
CN201110030312.3A CN102128163B (zh) 2010-01-19 2011-01-19 用于确定泵的功能关系的方法

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EP10000446.4A EP2354554B1 (fr) 2010-01-19 2010-01-19 Procédé de détermination de la relation fonctionnelle de pompes

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EP2354554B1 true EP2354554B1 (fr) 2018-08-01

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JP5672551B2 (ja) * 2011-07-22 2015-02-18 三浦工業株式会社 圧縮機台数制御システム
EP2895746B1 (fr) * 2012-09-13 2019-01-02 ABB Schweiz AG Dispositif et procédé permettant de faire fonctionner des pompes centrifuges parallèles
ES2769860T3 (es) * 2014-05-23 2020-06-29 Grundfos Holding As Método de control de bomba
CN107989786B (zh) * 2017-11-25 2019-07-05 蚌埠市鑫源机电设备有限公司 一种分区域检测的泵运行调控系统

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CN102128163A (zh) 2011-07-20
US20110176933A1 (en) 2011-07-21
US9388813B2 (en) 2016-07-12
EP2354554A1 (fr) 2011-08-10
CN102128163B (zh) 2015-09-09

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