WO2010092238A1 - Système d'observation de l'efficacité énergétique - Google Patents

Système d'observation de l'efficacité énergétique Download PDF

Info

Publication number
WO2010092238A1
WO2010092238A1 PCT/FI2010/050091 FI2010050091W WO2010092238A1 WO 2010092238 A1 WO2010092238 A1 WO 2010092238A1 FI 2010050091 W FI2010050091 W FI 2010050091W WO 2010092238 A1 WO2010092238 A1 WO 2010092238A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
motor
estimating
computer
data
Prior art date
Application number
PCT/FI2010/050091
Other languages
English (en)
Inventor
Pekka Ilmaranta
Original Assignee
Enercomp Oy
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Enercomp Oy filed Critical Enercomp Oy
Publication of WO2010092238A1 publication Critical patent/WO2010092238A1/fr

Links

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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/82—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted using a driven wheel as impeller and one or more other wheels or moving elements which are angularly restrained by a resilient member, e.g. spring member as the measuring device
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/08—Controlling based on slip frequency, e.g. adding slip frequency and speed proportional frequency
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/14—Estimation or adaptation of motor parameters, e.g. rotor time constant, flux, speed, current or voltage

Definitions

  • the invention relates to an arrangement and method for analyzing operation of a flow generating device, e.g. a centrifugal pump.
  • WO 2003/084022 discloses an energy management system and method.
  • the system comprises at least one device that controllably consumes energy.
  • the system further comprises a sensing and controlling device for sensing and controlling energy delivered to the energy consuming device.
  • Information from the energy consuming devices is transmitted to a back-end server using a data communication network. The information may be accessed through a user interface of a terminal device.
  • US 2006/0142961 discloses an enterprise energy management system.
  • the system includes a database including information relating to pieces of energy consuming equipment located at a site.
  • a server is programmed to calculate an expected energy consumption profile and to notify a user if actual energy consumption exceeds the expected energy consumption.
  • US 2002/0178047 discloses an energy management and corrective method utilizing a computer system and energy sensors. The method comprises the steps of monitoring energy usage at an energy consuming first facility and saving information regarding recording energy usage at the facility; establishing a historical base-line energy usage at the first facility based on the saved information of energy usage; comparing historical base-line energy usage to current energy usage at the first facility; determining excessive energy usage based on the comparison of historical base-line energy usage to current energy usage at the first facility; reporting a recommended corrective action for excessive energy usage and providing an electronic purchase ordering link to purchase a supply needed to perform the corrective action.
  • U.S. patent US6260004 discloses a pump operation diagnosis method in process control plant. The method involves comparing process data point acquired from process variable of pump with predefined best efficiency point of pump. The disclosure further teaches an apparatus and a method for diagnosing rotating equipment commonly used in the factory and process control industry. The apparatus and method are intended for use in assisting a maintenance engineer in the diagnosis of turbines, compressors, fans, blowers and pumps. The apparatus and method are based on the comparison of the current pump signature curves resulting from the acquisition of process variables from sensors monitoring the current condition of the pump and the original or previous pump performance curve from prior monitoring or knowledge of the pump geometry, installation effects and properties of the pumped process liquid.
  • the design specifications are generally calculated so as to satisfy a maximum flow rate with plenty of margin of the flow rate.
  • the energy efficiency of a pump may not be optimal for the purpose where the pump is actually used.
  • the energy efficiency of a pump may be optimized e.g. by controlling the rotational speed of a motor pump using an inverter.
  • the energy optimization arrangements of prior art typically need to be installed permanently as part of the system whose optimization is desired.
  • a relatively large number of sensors need to be installed in the system.
  • Some of the installation operations may require lengthy maintenance break for the pump.
  • the installation work may also require some special permissions, e.g. for performing electrical installations.
  • the analysis and optimization systems tend to be rather complex and expensive. Therefore, they are not often utilized as the cost of acquiring and installing the measurement and optimization system may be higher than the savings that may be expected from the use of the measurement and optimization system.
  • the object of the present invention is to provide an arrangement, a method and/or a computer program for facilitating efficient and simple measurement of the approximate power consumption of a centrifugal pump by means of a simple- to-install and/or simple-to-use measurement arrangement.
  • the object of the present invention is achieved by determining the motor slip and torque of a centrifugal pump from measurement data whose frequency spectrum comprises peaks that correlate with rotating speed of the pump and calculating power consumption and flow rate estimates based on the measurement data.
  • An aspect of the invention is a measuring arrangement for a pump, the arrangement comprising means for receiving measurement information comprising at least a frequency and optionally an amplitude component from a sensor into the memory of a computer device.
  • the invention is characterized in that the arrangement comprises computing means, e.g. a processor, memory and computer executable program code, for determining the motor slip of the pump from the measurement information and for estimating torque of the motor by comparing the motor slip with motor characteristics data.
  • the measurement information may be e.g. dynamic pressure measurement data, pump vibration data or data from an optical sensor
  • the senor may be an acoustic sensor.
  • the acoustic sensor may be the microphone of a cellular phone.
  • the computing means may comprise the processor and/or memory of the cellular phone.
  • the collection frequency of the measurement information may be e.g. at least 50, 100, 500 or 1000Hz.
  • the motor characteristics data may comprise e.g. the rated torque curve of the motor.
  • the arrangement may further comprise computing means for estimating flow rate of the pump based on the estimated torque of the motor using pump characteristics data, e.g. the shaft power to flow rate curve of the pump.
  • the arrangement may yet further comprise computing means for estimating pump head based on the estimated flow rate of the pump using pump characteristics data, e.g. the flow rate to pump head curve of the pump.
  • the arrangement may still yet further comprise computing means for estimating the inflow pressure of the pump based on the measured outflow pressure and estimated pump head.
  • the arrangement may still yet further comprise computing means for estimating the current (i.e. present) energy efficiency of the pump based on estimated shaft power and head power.
  • the head power delta p x Q). Head power is pump hydraulic power without losses.
  • the computer device of the arrangement may comprise communication means for exchanging information with some second computer device e.g. a server computer.
  • the computer device of the arrangement may for example receive from a second computer device motor characteristics data, e.g. torque curve of the motor, pump characteristics data, e.g. flow rate to pump head curve or shaft power to flow rate curve of the pump, and/or medium characteristics data, e.g. viscosity of the fluid being pumped.
  • the computer device may also send measurement data, motor slip data and/or any other data obtainable from the measurement data to the second computer device.
  • Another aspect of the invention is a method for calculating pump motor slip and estimating torque, the method comprising the step of receiving measurement data comprising at least frequency and optionally amplitude components from a sensor means to a computer device, the step of determining the motor slip of the pump from the measurement information and the step of estimating torque of the motor by comparing the motor slip with motor characteristics data.
  • Yet another aspect of the invention is a computer readable medium comprising computer program product for calculating pump motor slip and estimating torque, the computer program comprising computer executable instructions for receiving measurement information comprising at least frequency and optionally amplitude components from a sensor means to the computer, instructions for determining the motor slip of the pump from the measurement information and instructions for estimating torque of the motor by comparing the motor slip with motor characteristics data.
  • FIG. 1a shows an overview of the pump efficiency measurement arrangement according to an embodiment of the present invention
  • Figure 1 b shows an overview of the pump efficiency measurement arrangement according to another embodiment of the present invention
  • Figure 2 shows an exemplary method of determining motor slip and pump operating data according to an embodiment of the present invention
  • Figure 3 shows another exemplary embodiment of the method of the present invention
  • Figure 4 shows exemplary (fictitious) reporting data that may be produced according to an embodiment of the present invention.
  • Figure 1a depicts an exemplary measuring arrangement according to an embodiment of the present invention.
  • the arrangement comprises a computer 100 which suitably comprises a processor, memory, input and output devices and some network communication means.
  • the computer may be a portable computer, e.g. a laptop or a smart phone.
  • the computer further comprises a storage device 101 , e.g. a hard disk.
  • the computer facilitates the measurement of at least the outlet 104 pressure of the centrifugal pump 102 using dynamic pressure sensor 105.
  • the pressure measuring point comprising a pressure measurement sensor 105 is provided on the pressure side of the pump, e.g. in the flange sheet or in the outlet of the spiral case below the flange.
  • the inlet 103 pressure may be measured using sensor 109.
  • the temperature of the pump case or the medium flowing in the pump may be measured using a temperature sensor 106.
  • the additional sensors may improve the accuracy of the measurements and calculations that are based on the measurements.
  • the computer 100 is suitably connectable to a second computer 107, e.g. a server computer, using some data communication means 108, e.g. a wireless network adapter, that enables the computer to exchange information with another computer, e.g. the server computer 107 over a network, e.g. a TCP/IP network, e.g. internet.
  • a network e.g. a TCP/IP network, e.g. internet.
  • At least part of the network may be a wireless network, e.g. a WLAN network or GSM / 3G cellular telecommunications network.
  • the unsmoothed signal of the pressure measurement sensor 105 is scanned with suitable resolution into the memory of a computer 100.
  • the signal to be scanned may be e.g. an analogue signal having current of e.g. 4 ... 20 mA.
  • the analogue signal is converted into a digital signal prior to storing it into the memory of the computer.
  • the computer is adapted to determine from the stored measurement data the pressure as well as the frequency of the pressure pulsation.
  • the computer receiving the measurement data is equipped with suitable software that is capable of analyzing the measurement data using some programming logic and data available from other sources.
  • the software comprises means for receiving pump, motor and/or medium (fluid) characteristics data from the server computer 107 over the data communications network 108.
  • the characteristics data may comprise e.g. torque curve of the motor, the "shaft power to flow rate” curve of the pump, the “pump head to flow rate” curve of the pump and/or the "viscosity to temperature” curve of the medium.
  • the pump whose operation is being analyzed is operating essentially at a constant frequency.
  • the frequency (rotating speed) of the impeller of the pump may be altered by altering the frequency of the alternating electric current operating the motor (not shown in figure) of the pump.
  • the electric motor in this embodiment is an asynchronous motor.
  • the information about the frequency of the alternating electric current needs to be input to the computer 100 of the measurement arrangement.
  • Figure 1 b depicts another exemplary measuring arrangement according to an embodiment of the present invention.
  • Reference numerals 100, 101 , 107 and 108 refer to similar components as in figure 1 a.
  • an optical measuring device 112 emitting a laser beam and sensing the periodically reflected laser beam is used for measuring the actual rotating speed of the motor 110 that is coupled with a centrifugal pump 111.
  • the optical measuring device is a hand-held device or a device that is easily attachable to a suitable measuring position, e.g. so that the laser beam points to the fan of the motor.
  • the rotating speed of the motor is obtained from the rotating speed of the fan 114 of the motor towards which the laser beam 113 of the measuring device 112 is pointed.
  • each blade of the rotating fan produces a pulse that is observable by the measuring device 112.
  • the number of blades of the fan 114 is known, e.g. from the technical specification of the motor, it is trivial to calculate the rotating speed of the motor and the frequency of the impeller of the pump.
  • the functionality and computing means of computer 100 and storage 101 may be integrated e.g. in the measuring device 112 which may connect with the server computer 107 directly using e.g. some suitable wireless communication means, e.g. WLAN, GPRS or 3G communication network.
  • the optical sensor device 112 comprises means for entering e.g. the motor type or other motor identifying information or number of blades of the fan for subsequent or later transfer to computer 100 and/or server 107.
  • An advantage of the embodiment shown in figure 1 b is the ease of obtaining the rotation frequency information from the motor without any permanent sensor installation or calibration work at all. It is sufficient to just point the laser beam 113 at the fan and determine the number of blades of the fan. This together with the suitable computing means allows quick and effortless analysis of the energy efficiency of the pump 111.
  • Figure 2 shows exemplary method of estimating 200 pump efficiency based on the dynamic pressure measurement data according to an embodiment of the invention.
  • some measurement data e.g. dynamic pressure measurement data is collected from the pump using a pressure sensor (105 in figure 1).
  • measurement data may be input from an optical sensor (112 in figure 1 b).
  • a frequency spectrum is formed from the measurement data 202 and impeller blade peak frequency is identified 203 from the frequency spectrum.
  • the impeller frequency may be calculated 204 if the number of impeller blades is known.
  • Such information is available e.g. from data provided by the manufacturer of the pump. If a measuring arrangement of figure 1 b is used, the impeller frequency is derived from the rotating speed measured using the optical measuring device (112 in figure 1 b) instead of performing the steps 201 , 202 and 203.
  • the motor slip is calculated 205.
  • the motor slip is the difference between the measured impeller frequency and the synchronous rotating frequency of the motor.
  • the torque of the motor is estimated 206 by placing the estimated impeller frequency of the pump to the torque curve (see 310 in figure 3 for more details) of the motor.
  • the influence of the individual impeller blades (impulse entry, pressure points) on the measured pressure signal is obviously visible.
  • the peaks caused by the impeller blades can be identified from the pulsation frequency spectrum e.g. by using some suitable filtering (e.g., band pass filtering).
  • the slip/backlash (s" in the following equations) may be determined by comparing this pulsation frequency with the stator frequency.
  • Kloss'sche equation which is known to a person skilled in the art, describes the connection between the speed and torque of an asynchronous motor.
  • the equation results as a curve such as one shown as 313 in Figure 3.
  • the curve may be used for determining the dependence between the slip and the load of the motor.
  • the curve is typically available from the manufacturer of the motor.
  • the trend of the number of revolutions and torque characteristics can be assumed to be linear in the area between the nominal operating point and synchronous speed of the motor. Therefore the following equations may be applied for calculating the shaft power of the motor.
  • the wave rating of the motor can be determined: p _ p Count blade
  • Equation 4 an example about use of Equation 4 is provided using information from a fictitious data plate of an 11 kW IEC standard motor: 293 ⁇ - 60 — (3000 mm 1 ) 2 -3000 mm 1 3 ⁇
  • step 207 the shaft power obtained in step 206 is applied to estimate the flow rate and pump head of the pump by using pump characteristics data.
  • the pump characteristics data comprise "shaft power to flow rate” and “pump head to flow rate” curves that are typically available from the manufacturer of the pump. For an example about these curves, see diagrams 320 and 330 in figure 3 and their description.
  • the efficiency of the pump may be calculated 208 and the method is thus complete 209.
  • the method of figure 2 is repeated e.g. continuously over a period of time, e.g. hours, days or weeks to produce a volume of data that is sufficient e.g. for producing a report about the usage profile and efficiency of the pump.
  • One such exemplary report is depicted in figure 4.
  • Figure 3 depicts an embodiment of the method of the invention with the help of exemplary measurement data and motor and pump characteristics curves.
  • the measurement arrangement of an embodiment produces dynamic pressure measurement data of which a frequency spectrum 300 having a frequency 302 and amplitude component 301 is formed.
  • the spectrum has a clearly identifiable peak 303 at frequency f, 304. This frequency indicates the pulsations caused by the impeller blades of the pump.
  • the rotating frequency of the impeller may be calculated from the frequency f, 304. If the impeller has "n" blades, the rotating frequency of the impeller is f, / n and the rotating speed n, (rpm) is 60 * f , / n.
  • the torque data has a torque 312 and rotating speed 314 components.
  • the torque of the motor is thus function of the rotating speed of the motor.
  • the manufacturer of the motor provides "rated synchronous rotating speed" figure n r which is the rotating speed of the motor when no load is applied on the shaft.
  • the torque 316 of the shaft under current operating conditions can be obtained by placing the actual rotating speed n, 315 onto the torque curve 313.
  • flow rate Q 326 can be estimated using the "shaft power to flow rate" curve 324 (available e.g. from pump manufacturer) that is presented in P 322 and Q 321 coordinates.
  • the estimated shaft power P is placed 325 on the curve 324 to obtain the estimated flow rate Q, 326.
  • the pump head H 1 336 can be obtained by placing 335 the Q 1 value onto the "pump head to flow rate" curve 334 that lies in coordinates comprising Flow rate Q 331 and Head H 332.
  • the operating point 335 typically has a range of optimal values on the curve 334. If the measured operating point 335 is not within the optimal range, it may mean that e.g. unnecessary wear or even a failure of the pump is to be anticipated because of the non-optimal operating point.
  • Figure 4 depicts exemplary reports that may be made available using the data created using the method and arrangement of an embodiment of the invention.
  • Chart 400 shows shaft power consumption divided into five percentage categories 401. Each category is represented by a bar 403a-e. For example, bar 403a shows how many hours 402 the pump has been operating at less than 20% power.
  • the chart 410 shows in similar manner the actual flow rate of the pump divided into five percentage categories 411. For example, bar 413a shows how many hours 412 the pump has been operating producing less than 20% of maximum flow rate.
  • the chart 420 shows the actual efficiency of the pump divided into five percentage categories 421. For example, bar 423a shows how many hours 422 the pump has been operating with efficiency rate less than 20%.
  • the various embodiments of the invention provide some significant advantages over prior art.
  • the invention provides a simple-to-install and simple-to-use arrangement for determining useful data, e.g. the energy efficiency about a centrifugal pump, and determining the operating point of the pump.
  • the inventive idea described herein may also be used for determining possible reason for the failure of a pump.
  • the method and arrangement are capable of providing measurement and analysis data of sufficient quality even in the simplest embodiments which employ only one dynamic pressure sensor or an optical sensor.
  • inventive idea of the present invention may also be applicable to other flow generating devices, e.g. fans and compressors, operated by an electric motor.
  • the actual motor speed may be acquired using sensors other than a dynamic pressure sensor that measures the pressure pulsation.
  • sensors other than a dynamic pressure sensor that measures the pressure pulsation.
  • any of the following sensors may be used:
  • a magnet arranged e.g. on the shaft of the motor, e.g., in the area of the coupling between the motor and the pump - a slip reel - a well-known means of determining slip of an asynchronous motor, - a vibration sensor that produces vibration data that correlates with the rotation speed of the pump, or
  • an optical sensor that observes e.g. the rotating speed of the fan of the motor.
  • an acoustic sensor e.g. the microphone of a cellular phone, that records the sound of the pump and/or motor to be observed, is used for measuring the actual motor speed.
  • At least part of the software required for analyzing the measured signal may reside in the memory of the cellular phone and it may be executed by the processor of the cellular phone. Use of such commonplace consumer device contributes to the simplicity of observing the pump efficiency, the simplicity of the measurement process being one of the objects of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)

Abstract

La présente invention concerne un agencement de surveillance de pompe comprenant des moyens permettant de recevoir des données de mesures comprenant au moins une composante fréquentielle à partir d'un capteur dans la mémoire d'un dispositif informatique. L'invention est caractérisée en ce que l'agencement comprend en outre des moyens informatisés permettant de déterminer le glissement du moteur et d'estimer le couple de la pompe à partir des informations de mesures dynamiques. L'invention concerne également un procédé et un produit-programme informatique.
PCT/FI2010/050091 2009-02-12 2010-02-11 Système d'observation de l'efficacité énergétique WO2010092238A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20095133A FI20095133A0 (fi) 2009-02-12 2009-02-12 Energiatehokkuuden tarkkailija
FI20095133 2009-02-12

Publications (1)

Publication Number Publication Date
WO2010092238A1 true WO2010092238A1 (fr) 2010-08-19

Family

ID=40404635

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2010/050091 WO2010092238A1 (fr) 2009-02-12 2010-02-11 Système d'observation de l'efficacité énergétique

Country Status (2)

Country Link
FI (1) FI20095133A0 (fr)
WO (1) WO2010092238A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015197141A1 (fr) * 2014-10-15 2015-12-30 Grundfos Holding A/S Procédé et système pour détection de défauts dans un ensemble de pompe à l'aide d'un dispositif de communication portable
CN105317704A (zh) * 2015-11-26 2016-02-10 江苏大学 一种离心泵运行工况的判别装置及方法
WO2017197450A1 (fr) * 2016-05-16 2017-11-23 Weir Minerals Australia Ltd Contrôle de pompe
CN108534294A (zh) * 2018-03-21 2018-09-14 深圳达实智能股份有限公司 基于流量及温差的空调冷冻水泵能效判断方法及装置
CN108591081A (zh) * 2018-04-10 2018-09-28 浙江永发机电有限公司 离心泵与永磁电机工况监测反馈装置及其调控方法
CN109946603A (zh) * 2019-03-18 2019-06-28 四川托日工程技术有限公司 一种机泵在线监测与故障诊断系统
CN111365251A (zh) * 2020-03-27 2020-07-03 北京天泽智云科技有限公司 一种离心泵机组故障的智能诊断方法
US10711788B2 (en) 2015-12-17 2020-07-14 Wayne/Scott Fetzer Company Integrated sump pump controller with status notifications
USD890211S1 (en) 2018-01-11 2020-07-14 Wayne/Scott Fetzer Company Pump components
USD893552S1 (en) 2017-06-21 2020-08-18 Wayne/Scott Fetzer Company Pump components
CN111810418A (zh) * 2020-06-10 2020-10-23 武汉工程大学 一种故障检测方法及系统
WO2021104637A1 (fr) * 2019-11-28 2021-06-03 Cp Pumpen Ag Procédé pour déterminer le point de travail d'une pompe
CN114608853A (zh) * 2022-01-24 2022-06-10 合肥通用机械研究院有限公司 基于液液分离设备的最大通量检测装置及能效检测方法
WO2024170352A1 (fr) * 2023-02-15 2024-08-22 Grundfos Holding A/S Procédé de détermination automatique du profil de fonctionnement d'un système de pompe installé

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1349054A (en) * 1970-01-30 1974-03-27 Plessey Co Ltd Mass flow measurement
EP0403806A1 (fr) * 1989-06-21 1990-12-27 WILO GmbH Pompe centrifuge ou ventilateur
EP0674154A1 (fr) * 1994-03-09 1995-09-27 Bij de Leij, Jan Doeke Procédé et dispositif pour déterminer le débit d'un fluide pompé
US6260004B1 (en) * 1997-12-31 2001-07-10 Innovation Management Group, Inc. Method and apparatus for diagnosing a pump system
EP1204185A2 (fr) * 2000-11-02 2002-05-08 Siemens Aktiengesellschaft Procédé et dispositif pour l'enregistrement de l'état de fonctionnement d'un moteur connecté à un réseau électrique
US20030200060A1 (en) * 2002-04-22 2003-10-23 Evren Eryurek On-line rotating equipment monitoring device
EP1387087A2 (fr) * 2002-07-29 2004-02-04 Wilo Ag Méthode pour déterminer le débit d'une pompe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1349054A (en) * 1970-01-30 1974-03-27 Plessey Co Ltd Mass flow measurement
EP0403806A1 (fr) * 1989-06-21 1990-12-27 WILO GmbH Pompe centrifuge ou ventilateur
EP0674154A1 (fr) * 1994-03-09 1995-09-27 Bij de Leij, Jan Doeke Procédé et dispositif pour déterminer le débit d'un fluide pompé
US6260004B1 (en) * 1997-12-31 2001-07-10 Innovation Management Group, Inc. Method and apparatus for diagnosing a pump system
EP1204185A2 (fr) * 2000-11-02 2002-05-08 Siemens Aktiengesellschaft Procédé et dispositif pour l'enregistrement de l'état de fonctionnement d'un moteur connecté à un réseau électrique
US20030200060A1 (en) * 2002-04-22 2003-10-23 Evren Eryurek On-line rotating equipment monitoring device
EP1387087A2 (fr) * 2002-07-29 2004-02-04 Wilo Ag Méthode pour déterminer le débit d'une pompe

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015197141A1 (fr) * 2014-10-15 2015-12-30 Grundfos Holding A/S Procédé et système pour détection de défauts dans un ensemble de pompe à l'aide d'un dispositif de communication portable
CN107076155A (zh) * 2014-10-15 2017-08-18 格兰富控股联合股份公司 用于通过手持通信装置检测泵组件中的故障的方法和系统
US10316849B2 (en) 2014-10-15 2019-06-11 Grundfos Holding A/S Method and system for detection of faults in pump assembly via handheld communication device
CN105317704A (zh) * 2015-11-26 2016-02-10 江苏大学 一种离心泵运行工况的判别装置及方法
CN105317704B (zh) * 2015-11-26 2017-01-11 江苏大学 一种离心泵运行工况的判别方法
US11486401B2 (en) 2015-12-17 2022-11-01 Wayne/Scott Fetzer Company Integrated sump pump controller with status notifications
US10711788B2 (en) 2015-12-17 2020-07-14 Wayne/Scott Fetzer Company Integrated sump pump controller with status notifications
WO2017197450A1 (fr) * 2016-05-16 2017-11-23 Weir Minerals Australia Ltd Contrôle de pompe
US10711802B2 (en) 2016-05-16 2020-07-14 Weir Minerals Australia Ltd. Pump monitoring
USD1015378S1 (en) 2017-06-21 2024-02-20 Wayne/Scott Fetzer Company Pump components
USD893552S1 (en) 2017-06-21 2020-08-18 Wayne/Scott Fetzer Company Pump components
USD1014560S1 (en) 2018-01-11 2024-02-13 Wayne/Scott Fetzer Company Pump components
USD890211S1 (en) 2018-01-11 2020-07-14 Wayne/Scott Fetzer Company Pump components
CN108534294A (zh) * 2018-03-21 2018-09-14 深圳达实智能股份有限公司 基于流量及温差的空调冷冻水泵能效判断方法及装置
CN108591081A (zh) * 2018-04-10 2018-09-28 浙江永发机电有限公司 离心泵与永磁电机工况监测反馈装置及其调控方法
CN109946603A (zh) * 2019-03-18 2019-06-28 四川托日工程技术有限公司 一种机泵在线监测与故障诊断系统
WO2021104637A1 (fr) * 2019-11-28 2021-06-03 Cp Pumpen Ag Procédé pour déterminer le point de travail d'une pompe
CN111365251B (zh) * 2020-03-27 2021-10-15 北京天泽智云科技有限公司 一种离心泵机组故障的智能诊断方法
CN111365251A (zh) * 2020-03-27 2020-07-03 北京天泽智云科技有限公司 一种离心泵机组故障的智能诊断方法
CN111810418A (zh) * 2020-06-10 2020-10-23 武汉工程大学 一种故障检测方法及系统
CN114608853A (zh) * 2022-01-24 2022-06-10 合肥通用机械研究院有限公司 基于液液分离设备的最大通量检测装置及能效检测方法
CN114608853B (zh) * 2022-01-24 2024-04-09 合肥通用机械研究院有限公司 基于液液分离设备的最大通量检测装置及能效检测方法
WO2024170352A1 (fr) * 2023-02-15 2024-08-22 Grundfos Holding A/S Procédé de détermination automatique du profil de fonctionnement d'un système de pompe installé

Also Published As

Publication number Publication date
FI20095133A0 (fi) 2009-02-12

Similar Documents

Publication Publication Date Title
WO2010092238A1 (fr) Système d'observation de l'efficacité énergétique
AU2013214692B2 (en) Pump efficiency determining system and related method for determining pump efficiency
DK2433010T3 (en) A method and device for operating point determining a work machine
Burt et al. Electric motor efficiency under variable frequencies and loads
CN100470008C (zh) 改进的离心泵性能恶化检测
EP2806321B1 (fr) Procédé de surveillance de l'état d'une installation, programme informatique de surveillance de l'état d'une installation et appareil de surveillance de l'état d'une installation
Ahonen Monitoring of centrifugal pump operation by a frequency converter
US20030171895A1 (en) Pump system diagnosis
KR101850828B1 (ko) 터보 기계
CN1499188A (zh) 检测离心泵故障的方法和装置
CN101629572A (zh) 失速和喘振检测系统及方法
CN112483427B (zh) 一种高效的离心泵能效管理方法及系统
Leonow et al. Soft sensor based dynamic flow rate estimation in low speed radial pumps
EP2505846A1 (fr) Procédé et agencement pour estimer le débit d'une pompe
Bianchini et al. Maintenance scheduling optimization for industrial centrifugal pumps
AU2006286683B2 (en) Method and device for increasing the operational flexibility of a current-generating system, in particular a gas turbine or steam turbine
JP4611891B2 (ja) 省エネルギーサービス提供方法、電動機の仕様決定方法、圧縮機のバージョンアップサービス方法、永久磁石電動機の駆動装置を用いた省エネルギーサービスの提供方法、圧縮機交換方法、冷凍空調装置
KR100567434B1 (ko) 빗물펌프장용 온라인 감시시스템
RU2585345C1 (ru) Способ комплексной оценки энергетической эффективности технологической установки для перекачивания жидких сред во время ее эксплуатации
KR101472768B1 (ko) 회전기계 진동량을 이용한 설비의 상태평가 방법
WO2016115324A1 (fr) Systèmes et procédés pour le calcul de l'énergie électrique consommée par un moteur à induction
Ahonen et al. Pump operation monitoring applying frequency converter
Pöyhönen Variable-speed-drive-based monitoring and diagnostic methods for pump, compressor, and fan systems
Leonow et al. A Modular Soft Sensor for Centrifugal Pumps
WO2021104637A1 (fr) Procédé pour déterminer le point de travail d'une pompe

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10740973

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC

122 Ep: pct application non-entry in european phase

Ref document number: 10740973

Country of ref document: EP

Kind code of ref document: A1