EP2630372B1 - Dispositif de surveillance d'une pompe - Google Patents

Dispositif de surveillance d'une pompe Download PDF

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Publication number
EP2630372B1
EP2630372B1 EP11758208.0A EP11758208A EP2630372B1 EP 2630372 B1 EP2630372 B1 EP 2630372B1 EP 11758208 A EP11758208 A EP 11758208A EP 2630372 B1 EP2630372 B1 EP 2630372B1
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EP
European Patent Office
Prior art keywords
unit
sensor
component
signal
monitoring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP11758208.0A
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German (de)
English (en)
Other versions
EP2630372A1 (fr
Inventor
Alexander BÖHM
Gerd Ebelt
Stefan Laue
Ursula Kronfeld
Joachim Schullerer
Georg Herzing
Bernd Schramm
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KSB AG
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KSB AG
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Publication date
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Priority to PL11758208T priority Critical patent/PL2630372T3/pl
Publication of EP2630372A1 publication Critical patent/EP2630372A1/fr
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Publication of EP2630372B1 publication Critical patent/EP2630372B1/fr
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Classifications

    • 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors

Definitions

  • the invention relates to a device and a method for monitoring rotating components in centrifugal pumps or systems comprising centrifugal pumps.
  • Centrifugal pumps are used in a variety of systems, where they are sometimes exposed to very harsh conditions.
  • the condition of a centrifugal pump, in particular the impeller, must therefore be closely monitored depending on the application to avoid damage to the centrifugal pump or the entire system.
  • the DE 40 055 03 A1 shows an apparatus for monitoring an impeller by means of a light emitter and an optical probe. This form of monitoring requires stationary centering of the light emitter and sensor on the leading edges of the wings. However, this monitoring method is only suitable for a centrifugal pump, which promotes an optically transparent medium.
  • a vacuum pump with a pump stator and a pump rotor wherein the pump rotor includes a transponder.
  • sensors, a microcontroller and a memory are arranged in the rotor, which are connected to the transponder.
  • a reader arranged in the stator reads the sensor data from the rotor from the transponder.
  • the object of the invention is to provide a device for monitoring rotating components in centrifugal pumps or systems comprising centrifugal pumps, which is applicable for any liquid or solids-laden fluids and independent of electromagnetic boundary conditions.
  • the solution provides a device for monitoring rotating components in centrifugal pumps or systems comprising centrifugal pumps, wherein the signal transmission is acoustic, using sound waves. This allows a simple and secure transmission of signals of a monitored rotating component.
  • liquid and solid sound-conducting media are provided on the transmission path between a first unit, the transmitting unit, and a second unit, the receiver unit.
  • the advantage here is that the sound along a path is feasible and the characteristics of the way are clearly determinable.
  • the phase transitions of sound between solid and liquid media may be taken into account during transmission.
  • a corresponding coding of the signal takes into account losses at the phase transitions.
  • the first unit has a setpoint memory, are stored in the comparison values for the measured sensor signals. Threshold values that are compared with the measured values can be stored in this setpoint memory. If a threshold is reached, a corresponding signal is sent to the receiver unit.
  • Deterioration of the transmitted signal is prevented by selecting the frequency for transmitting information other than frequencies of system noise.
  • System noise is understood to mean all acoustic emissions of the centrifugal pump and the components connected to it.
  • the combination of different components leads to natural frequencies of the system, which depend specifically on the individual configuration of the system. This measure prevents misinterpretations in the analysis of the received signals.
  • a targeted Adjusting the signal makes the transmission insensitive to interference from the above system noise.
  • an acoustic wave sensor for detecting ambient noise is provided in the second unit.
  • the ambient noise can be separated from the transmitted signal, which improves the signal information.
  • the first unit is integrated into a component, in particular if it is cast into the component.
  • the surface of the component thus also protects the transmitting device. Due to the acoustic transmission, it is possible to integrate the first unit in a metallic component, since the acoustic signal transmission in metals works well. It is also possible to integrate the second unit, which includes the receiver in a metallic housing or put on the outside of the housing.
  • the first unit is equipped with a power supply, which in the simplest case is a battery. Generators can also be provided which gain electrical energy from the movement of the component, from vibrations or temperature gradients.
  • the self-sufficient supply of energy to the first unit is particularly important if it is encapsulated encapsulated in the component. In this case, the power supply must be ensured over the lifetime of the component.
  • the sensor of the first unit is designed in one embodiment of the invention for detecting component properties of the centrifugal pump or the system, for example, machine temperature, mechanical pressure or stress or component fracture.
  • component properties of the centrifugal pump or the system for example, machine temperature, mechanical pressure or stress or component fracture.
  • a targeted monitoring of individual components is possible.
  • component fractions are by appropriate fracture sensors, as running through the component Wires are executed, easily detectable, since a break in the wire in case of component break is detected by a simple short circuit of the wire.
  • operating parameters can be detected by a sensor. With the centrifugal pump these are, for example, speed, power requirement or service life. This allows further monitoring of the components whose condition can be highly dependent on these parameters.
  • the senor detects properties of the pumped medium.
  • the viscosity, temperature or concentration of the medium can be determined, which are then evaluated by the microprocessor. Its analysis results are transmitted to the outside world.
  • a method for monitoring components with an aforementioned device in which a query of the at least one sensor takes place in cyclically recurring intervals.
  • the measured sensor data are compared with setpoints from the setpoint memory and when a threshold value is exceeded, a signal is sent to the receiving unit.
  • the receiving unit continuously receives noises and filters specifically for possible transmission noise, namely, the frequencies and pulse shapes that can be generated. If a signal is detected, it is evaluated and either displayed on a display and / or forwarded to a higher-level system control.
  • information is used in the signal evaluation, which takes into account the ambient noise of the centrifugal pump or system. This can reduce errors.
  • the invention further comprises an impeller of a centrifugal pump, which is equipped with the device for component monitoring.
  • This simple and cost-effective device allows contactless monitoring of the impeller, wherein in the contact or wireless signal transmission neither properties of the pumped medium nor electromagnetic influences from the environment of the centrifugal pump must be considered.
  • the impeller is made of a polymer material, in particular of polymer concrete or mineral casting. These materials are cast cold, so that a special protection of the cast-in first unit is not necessary.
  • the FIG. 1 shows a device for monitoring rotating components in centrifugal pumps or systems comprising centrifugal pumps, consisting of a first unit 1, which is fixedly connected to the component to be monitored.
  • a first unit 1 which is fixedly connected to the component to be monitored.
  • the first unit directly into the component. This is useful, for example, if the component consists of a cast material which can be cast at low temperatures, for example a polymer material, in particular polymer concrete or mineral casting.
  • the fully configured, self-sufficient and wirelessly designed first unit is poured, for example, in a centrifugal pump impeller.
  • the component itself is not shown for the sake of simplicity.
  • the first unit 1 comprises a sensor 2 for detecting component properties, which is connected to the sensor unit 3 with the first unit 1. It is also possible to connect a plurality of sensors 2 to the first unit 1. As sensors 2 come For example, temperature, pressure and / or material sensors or others into consideration.
  • sensors 2 come For example, temperature, pressure and / or material sensors or others into consideration.
  • a fracture sensor is indicated, which consists of at least one wire which extends through fracture-prone areas of the component. If the component forms a crack at a point through which the wire passes, the wire will break as the crack progresses and the electrical conduction along this wire will be interrupted. In this way it is easier to detect cracks in the component. In the case of several wires connected in parallel, a progression of cracking can also be observed.
  • a microprocessor 4 for analyzing sensor signals directly evaluates the data recorded by the sensor 2 and forwards the analysis result to a transmitting unit 5 for transmission to a receiver spatially separated from the monitored component.
  • the frequency of the sensor query depends on the probability of an expected event. It significantly influences the energy requirement. A low check frequency will result in long battery life and will be further improved if the system is put into sleep mode or paused during the pauses between two polls.
  • the component monitoring by the acoustic data transmission according to the invention represents the safest and most cost-effective variant within the structure used.
  • the signal 8 can be embodied as an acoustic message telegram which can contain different frequencies, pulse sequences or combinations thereof. By repeating the same signal, transmission errors can be avoided.
  • the design of the sound generator, which forms the transmission unit 5 in this embodiment depends strongly on the information to be transmitted, the frequencies used and the surrounding medium to be conveyed, since this must be run through by the signal 8. It should be noted that the signal in an embedded first unit must first leave the component, with a transition between the solid component and the liquid or solid-laden fluid takes place.
  • a transition of the signal takes place when the second unit is also integrated into a fixed component, for example in a housing, or when the second unit is mounted on the outside of a housing, within the acoustic range.
  • a source for power supply 6 is also housed on the first unit 1.
  • a battery as well as a device that can gain energy from the movement of the rotating impeller or temperature distributions in the impeller.
  • the FIG. 1 further shows a second unit 9 equipped with a receiver unit 10.
  • a receiver unit 10 This is installed in use with a centrifugal pump in or on the pump housing. Depending on the load of the pumped medium, the receiver unit must be provided with protection. As with the first unit 1, it may be advisable to pour the second unit 9 directly into the pump housing.
  • the receiver 10 is tuned to the transmitter 5 with respect to its detectable frequency range.
  • the detected signals are fed to an evaluation unit 11.
  • the evaluation result can be displayed in the embodiment shown directly on the pump, for which a corresponding display means 12 is provided.
  • the display can be acoustic or optical. Alternatively, it is possible to forward the evaluation result to a higher-level system control, for which purpose the connection 13 is provided.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (15)

  1. Dispositif de surveillance de composants en rotation sur des pompes centrifuges ou installations qui comprennent des pompes centrifuges, se composant d'une première unité (1), raccordée fixement au composant à surveiller, comprenant une source d'alimentation en énergie (6), au moins un capteur (2), un microprocesseur (4), une unité d'émission (5) pour la transmission d'un signal (8) à un récepteur séparé dans l'espace du composant à surveiller et d'une deuxième unité (9) comprenant une unité de réception (10), un moyen (11) pour évaluer le signal transmis (8) et des moyens (12) pour la représentation et/ou le transfert (13) d'une propriété de composant saisie, caractérisé en ce que la transmission du signal (8) a lieu de manière acoustique à l'aide d'ondes sonores.
  2. Dispositif selon la revendication 1 caractérisé en ce que des moyens conducteurs acoustiques fluides et fixes sont prévus sur une trajectoire de transmission (7) entre l'unité d'émission (5) et l'unité de réception (10).
  3. Dispositif selon la revendication 1 ou 2 caractérisé en ce que l'unité d'évaluation (4) de la première unité (1) contient une mémoire de valeurs théoriques.
  4. Dispositif selon l'une quelconque des revendications 1 à 3 pour lequel la fréquence et la situation de phase de la transmission d'informations divergent des fréquences des bruits du système.
  5. Dispositif selon l'une des revendications 1 à 4 caractérisé en ce qu'un capteur d'ondes sonores est prévu sur la deuxième unité (9) pour la saisie des bruits d'ambiance.
  6. Dispositif selon l'une quelconque des revendications 1 à 5 pour lequel la première unité (1) est intégrée dans un composant, en particulier moulée.
  7. Dispositif selon l'une quelconque des revendications 1 à 6 pour lequel la première unité (1) dispose d'une alimentation d'énergie (6).
  8. Dispositif selon l'une quelconque des revendications 1 à 7 pour lequel le capteur (2) saisit des paramètres de fonctionnement de la pompe centrifuge ou de l'installation.
  9. Dispositif selon l'une quelconque des revendications 1 à 8 pour lequel le capteur (2) saisit des propriétés de composant de la pompe centrifuge ou de l'installation.
  10. Dispositif selon la revendication 9 pour lequel le capteur (2) est un capteur de rupture.
  11. Dispositif selon l'une quelconque des revendications 1 à 10 pour lequel le capteur (2) saisit des propriétés du milieu pompé.
  12. Procédé de surveillance de composant en rotation avec un dispositif selon les revendications 1 à 11 caractérisé en ce qu'une interrogation d'au moins un capteur (2) a lieu à des intervalles revenant de façon cyclique, pour lequel les données de capteur sont comparées aux valeurs théoriques de la mémoire de valeurs théoriques et en cas de dépassement d'une valeur seuil un signal (8) est transmis à l'unité de réception (10), pour lequel l'unité de réception (10) évalue le signal (8) et l'indique soit sur un affichage (12) ou/et le transmet à une commande d'installation supérieure.
  13. Procédé de surveillance de composants avec un dispositif selon la revendication 12 caractérisé en ce que pour l'évaluation des signaux une information est utilisée qui prend en considération les bruits ambiants de la pompe centrifuge ou de l'installation.
  14. Roue d'une pompe centrifuge caractérisée en ce qu'elle est équipée d'un dispositif de surveillance selon les revendications 1 à 11.
  15. Roue selon la revendication 14 caractérisée en ce qu'elle est fabriquée dans un matériau polymère, en particulier en béton au polymère.
EP11758208.0A 2010-10-22 2011-09-21 Dispositif de surveillance d'une pompe Active EP2630372B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11758208T PL2630372T3 (pl) 2010-10-22 2011-09-21 Urządzenie do kontroli pompy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010049138A DE102010049138A1 (de) 2010-10-22 2010-10-22 Vorrichtung zur Pumpenüberwachung
PCT/EP2011/066396 WO2012052246A1 (fr) 2010-10-22 2011-09-21 Dispositif de surveillance d'une pompe

Publications (2)

Publication Number Publication Date
EP2630372A1 EP2630372A1 (fr) 2013-08-28
EP2630372B1 true EP2630372B1 (fr) 2015-11-18

Family

ID=44654120

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11758208.0A Active EP2630372B1 (fr) 2010-10-22 2011-09-21 Dispositif de surveillance d'une pompe

Country Status (10)

Country Link
US (1) US20130230381A1 (fr)
EP (1) EP2630372B1 (fr)
CN (1) CN103249952B (fr)
BR (1) BR112013009576B1 (fr)
DE (1) DE102010049138A1 (fr)
DK (1) DK2630372T3 (fr)
MX (1) MX2013004444A (fr)
PL (1) PL2630372T3 (fr)
RU (1) RU2559104C2 (fr)
WO (1) WO2012052246A1 (fr)

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DE102013017828B4 (de) * 2013-10-24 2015-05-13 Fresenius Medical Care Deutschland Gmbh Verfahren und Vorrichtung zur Überwachung einer in einem extrakorporalen Blutkreislauf oder einer in einem Dialysatkreislauf angeordneten Impellerpumpe und Blutbehandlungsvorrichtung
US9649640B2 (en) * 2014-04-16 2017-05-16 Flsmidth A/S Methods and apparatus for the continuous monitoring of wear in flotation circuits
DE102016121105A1 (de) * 2016-11-04 2018-05-09 Endress+Hauser Conducta Gmbh+Co. Kg Schnittstelle für einen Messumformer
DE102017223189A1 (de) * 2017-12-19 2019-06-19 KSB SE & Co. KGaA Mehrpumpenanlage und Verfahren zu deren Betrieb
CN111237209B (zh) * 2020-02-17 2021-08-03 苏州欣皓信息技术有限公司 水泵转轮稳定性监测方法、装置、电子设备和存储介质
CN114258566A (zh) * 2020-03-31 2022-03-29 Tdk电子股份有限公司 声学传输系统、初级电路、次级电路、传输方法和声学传输系统的应用
CN112879314B (zh) * 2021-01-21 2023-08-29 西北农林科技大学 一种离心泵后泵腔压力分析装置
CN113295939B (zh) * 2021-03-29 2023-01-31 一汽奔腾轿车有限公司 一种真空泵电磁兼容测试系统及其控制方法
DE102022130126A1 (de) 2022-11-15 2024-05-16 KSB SE & Co. KGaA Verfahren zur sensorbasierten Überwachung wenigstens einer rotierenden Arbeitsmaschine

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Also Published As

Publication number Publication date
CN103249952A (zh) 2013-08-14
BR112013009576A8 (pt) 2018-07-31
CN103249952B (zh) 2016-01-20
EP2630372A1 (fr) 2013-08-28
MX2013004444A (es) 2013-07-29
RU2559104C2 (ru) 2015-08-10
DK2630372T3 (en) 2016-02-22
RU2013123455A (ru) 2014-11-27
BR112013009576A2 (pt) 2016-07-12
DE102010049138A1 (de) 2012-04-26
WO2012052246A1 (fr) 2012-04-26
US20130230381A1 (en) 2013-09-05
PL2630372T3 (pl) 2016-05-31
BR112013009576B1 (pt) 2021-06-29

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