FI113490B - Förfarande för användning av en centrifugalpump - Google Patents

Förfarande för användning av en centrifugalpump Download PDF

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Publication number
FI113490B
FI113490B FI20020623A FI20020623A FI113490B FI 113490 B FI113490 B FI 113490B FI 20020623 A FI20020623 A FI 20020623A FI 20020623 A FI20020623 A FI 20020623A FI 113490 B FI113490 B FI 113490B
Authority
FI
Finland
Prior art keywords
frequency
power
motor
control variable
centrifugal pump
Prior art date
Application number
FI20020623A
Other languages
English (en)
Finnish (fi)
Other versions
FI20020623A (sv
FI20020623A0 (sv
Inventor
Eik Sefeldt Moeller
Original Assignee
Danfoss Drives As
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 Danfoss Drives As filed Critical Danfoss Drives As
Publication of FI20020623A0 publication Critical patent/FI20020623A0/sv
Publication of FI20020623A publication Critical patent/FI20020623A/sv
Application granted granted Critical
Publication of FI113490B publication Critical patent/FI113490B/sv

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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
    • F04D15/0066—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
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
    • F04D15/0227—Lack of liquid level being detected using a flow transducer
    • 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
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
    • F04D15/0236—Lack of liquid level being detected by analysing the parameters of the electric drive, e.g. current or power consumption

Landscapes

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

Claims (10)

1- A . UJ 10 1 1349C där Gnx är en fast effektförlust, fi är en första frekvens, f2 är en andra frekvens, Gfl är motoms eleffekt pä frekvensen fi,
1. Förfarande för drift av en centrifugalpump som drivs av en elmotor med vari- abel frekvens, där en alltför liten strömning genom pumpen konstateras genom att monitorera elektriska storheter, kännetecknat av att eleffekten konstateras och jäm-föres med en styrstorhet som bildats som en funktion av motoms frekvens. 15
2. Förfarande enligt patentkrav 1, kännetecknat av att styrstorheten konstateras med hjälp av en jämförelseeffekt som förekommer pä en förutbestämd jämförelse-frekvens.
3. Förfarande enligt patentkrav 1 eller 2, kännetecknat av att styrstorheten in-,: kluderar en produkt av vilken en faktor kan definieras av användaren. •. 20
4. Förfarande enligt patentkrav 3, kännetecknat av att faktom är större än ett. - t v 5. Förfarande enligt nägot av patentkraven 1-4, kännetecknat av att ätminstone -1 tvä mätningar av motoreffekten utförs pä olika frekvenser och utan strömning ge nom centrifugalpumpen, och av detta konstateras grunden för styrstorheten.
5 Ge är motoms eleffekt pä frekvensen f2.
6. Förfarande enligt patentkrav 5, kännetecknat av att grunden konstateras i en-25 lighet med följande formel: i (f V ... Gf2-Gfl* A * __\ J \ J fli f f λ3
7. Förfarande enligt patentkrav 6, kännetecknat av att styrstorheten bestäms i enlighet med följande formel: f f λ3 Gx= (G/1-gJx -T +Gfix xF där fx är den verkliga frekvensen, Gx är en styrstorhet, F är en faktor, och de övriga storhetema har beskrivits ovan.
8. Pumparrangemang, vilket omfattar en centrifugalpump, en elmotor som driver centrifugalpumpen, en styrbar frekvensomvandlare som matar elmotom, en givar-anordning och en utvärderingsanordning, kännetecknat av att givaranordningen konstaterar de värden som utgör gmnden för att bestämma eleffekten och att utvär-deringsanordningen uppvisar en dynamisk gränsvärdesgenerator som genererar en 20 styrstorhet som en funktion av motoms frekvens. > ' ·
FI20020623A 2001-04-02 2002-04-02 Förfarande för användning av en centrifugalpump FI113490B (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10116339A DE10116339B4 (de) 2001-04-02 2001-04-02 Verfahren zum Betreiben einer Zentrifugalpumpe
DE10116339 2001-04-02

Publications (3)

Publication Number Publication Date
FI20020623A0 FI20020623A0 (sv) 2002-04-02
FI20020623A FI20020623A (sv) 2002-10-03
FI113490B true FI113490B (sv) 2004-04-30

Family

ID=7680071

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20020623A FI113490B (sv) 2001-04-02 2002-04-02 Förfarande för användning av en centrifugalpump

Country Status (5)

Country Link
US (1) US6715996B2 (sv)
CN (1) CN1379541A (sv)
DE (1) DE10116339B4 (sv)
FI (1) FI113490B (sv)
GB (1) GB2376534B (sv)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10127225A1 (de) * 2001-05-22 2002-11-28 Zeiss Carl Ultraviolettlicht-Abschwächungsfilter
US8337166B2 (en) 2001-11-26 2012-12-25 Shurflo, Llc Pump and pump control circuit apparatus and method
US6776584B2 (en) * 2002-01-09 2004-08-17 Itt Manufacturing Enterprises, Inc. Method for determining a centrifugal pump operating state without using traditional measurement sensors
US8540493B2 (en) * 2003-12-08 2013-09-24 Sta-Rite Industries, Llc Pump control system and method
EP1564411B2 (de) * 2004-02-11 2015-08-05 Grundfos A/S Verfahren zur Ermittlung von Fehlern beim Betrieb eines Pumpenaggregates
EP1585205B1 (en) * 2004-04-09 2017-12-06 Regal Beloit America, Inc. Pumping apparatus and method of detecting an entrapment in a pumping apparatus
US20110002792A1 (en) * 2004-04-09 2011-01-06 Bartos Ronald P Controller for a motor and a method of controlling the motor
US8133034B2 (en) * 2004-04-09 2012-03-13 Regal Beloit Epc Inc. Controller for a motor and a method of controlling the motor
US20080095639A1 (en) * 2006-10-13 2008-04-24 A.O. Smith Corporation Controller for a motor and a method of controlling the motor
US8602745B2 (en) * 2004-08-26 2013-12-10 Pentair Water Pool And Spa, Inc. Anti-entrapment and anti-dead head function
US8019479B2 (en) 2004-08-26 2011-09-13 Pentair Water Pool And Spa, Inc. Control algorithm of variable speed pumping system
US7845913B2 (en) 2004-08-26 2010-12-07 Pentair Water Pool And Spa, Inc. Flow control
US7686589B2 (en) 2004-08-26 2010-03-30 Pentair Water Pool And Spa, Inc. Pumping system with power optimization
US8469675B2 (en) 2004-08-26 2013-06-25 Pentair Water Pool And Spa, Inc. Priming protection
US7874808B2 (en) * 2004-08-26 2011-01-25 Pentair Water Pool And Spa, Inc. Variable speed pumping system and method
US8480373B2 (en) 2004-08-26 2013-07-09 Pentair Water Pool And Spa, Inc. Filter loading
US8043070B2 (en) 2004-08-26 2011-10-25 Pentair Water Pool And Spa, Inc. Speed control
US8281425B2 (en) 2004-11-01 2012-10-09 Cohen Joseph D Load sensor safety vacuum release system
WO2006136202A1 (en) 2005-06-21 2006-12-28 Itt Manufacturing Enterprises Inc. Control system for a pump
US8011895B2 (en) * 2006-01-06 2011-09-06 Itt Manufacturing Enterprises, Inc. No water / dead head detection pump protection algorithm
US20070177990A1 (en) * 2006-01-27 2007-08-02 Applied Drives & Systems, Inc. Centrifugal pump casing relief system
CN101033748B (zh) * 2006-03-08 2013-07-24 Itt制造企业公司 不使用传统传感器的确定泵流量的方法
US7945411B2 (en) * 2006-03-08 2011-05-17 Itt Manufacturing Enterprises, Inc Method for determining pump flow without the use of traditional sensors
CN103206388B (zh) * 2006-03-08 2016-09-07 Itt制造企业有限责任公司 不使用传统传感器的泵保护方法和设备
US7925385B2 (en) * 2006-03-08 2011-04-12 Itt Manufacturing Enterprises, Inc Method for optimizing valve position and pump speed in a PID control valve system without the use of external signals
US8303260B2 (en) * 2006-03-08 2012-11-06 Itt Manufacturing Enterprises, Inc. Method and apparatus for pump protection without the use of traditional sensors
CN101033744B (zh) * 2006-03-08 2013-07-24 Itt制造企业公司 不使用传统传感器的泵保护方法和设备
US7690897B2 (en) 2006-10-13 2010-04-06 A.O. Smith Corporation Controller for a motor and a method of controlling the motor
US20080095638A1 (en) * 2006-10-13 2008-04-24 A.O. Smith Corporation Controller for a motor and a method of controlling the motor
DE102007022348A1 (de) † 2007-05-12 2008-11-13 Ksb Aktiengesellschaft Einrichtung und Verfahren zur Störungsüberwachung
US8774972B2 (en) * 2007-05-14 2014-07-08 Flowserve Management Company Intelligent pump system
ES2716232T3 (es) * 2008-10-01 2019-06-11 Regal Beloit America Inc Controlador para un motor y un método para controlar el motor
ES2773888T3 (es) 2008-10-06 2020-07-15 Danfoss Low Power Drives Método para operar un sistema de seguridad de liberación de vacío
US8622713B2 (en) * 2008-12-29 2014-01-07 Little Giant Pump Company Method and apparatus for detecting the fluid condition in a pump
US8436559B2 (en) 2009-06-09 2013-05-07 Sta-Rite Industries, Llc System and method for motor drive control pad and drive terminals
US9556874B2 (en) * 2009-06-09 2017-01-31 Pentair Flow Technologies, Llc Method of controlling a pump and motor
US8564233B2 (en) 2009-06-09 2013-10-22 Sta-Rite Industries, Llc Safety system and method for pump and motor
MX344350B (es) 2010-12-08 2016-12-13 Pentair Water Pool & Spa Inc Válvula de descarga con vacío para sistema de liberación de vacío de seguridad.
US9689396B2 (en) 2011-11-01 2017-06-27 Regal Beloit America, Inc. Entrapment detection for variable speed pump system using load coefficient
ES2640280T3 (es) 2011-11-01 2017-11-02 Pentair Water Pool And Spa, Inc. Sistema y método de bloqueo de flujo
EP2618002B1 (en) * 2012-01-17 2016-05-04 ABB Technology Oy Method for detecting the correct rotational direction of a centrifugal apparatus, and a centrifugal apparatus assembly
US10690138B2 (en) * 2012-08-09 2020-06-23 Panasonic intellectual property Management co., Ltd Motor control device, motor control method, and blower apparatus
US9885360B2 (en) 2012-10-25 2018-02-06 Pentair Flow Technologies, Llc Battery backup sump pump systems and methods
US9558854B2 (en) * 2013-01-23 2017-01-31 General Electric Company Systems and methods for providing override control for a feedwater pump recirculation valve
US10296016B1 (en) 2013-07-10 2019-05-21 Taco, Inc. Self-limiting pump-motor-VFD combination
DE102013109134A1 (de) * 2013-08-23 2015-02-26 Xylem Ip Holdings Llc Verfahren zur Bestimmung einer Durchströmungsmenge an einem Flüssigkeitsfördersystem, Verfahren zur Bestimmung einer Energiemenge einer Förderflüssigkeit, Flüssigkeitsfördersystem und Pumpe
PT3246572T (pt) * 2016-05-17 2019-02-27 Xylem Europe Gmbh Método para identificar o ressonar
US11852131B2 (en) * 2017-09-25 2023-12-26 Carrier Corporation Pressure safety shutoff
JP2022090957A (ja) * 2020-12-08 2022-06-20 富士電機株式会社 ポンプの目詰まり検知システム

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5324170A (en) * 1984-12-31 1994-06-28 Rule Industries, Inc. Pump control apparatus and method
US4703387A (en) * 1986-05-22 1987-10-27 Franklin Electric Co., Inc. Electric motor underload protection system
US4841404A (en) * 1987-10-07 1989-06-20 Spring Valley Associates, Inc. Pump and electric motor protector
AT405996B (de) * 1993-07-09 2000-01-25 Rudin Franz Verfahren zur regelung der drehzahl eines elektromotors und vorrichtung zur durchführung des verfahrens
US5545012A (en) * 1993-10-04 1996-08-13 Rule Industries, Inc. Soft-start pump control system
US5577890A (en) * 1994-03-01 1996-11-26 Trilogy Controls, Inc. Solid state pump control and protection system
US5549456A (en) * 1994-07-27 1996-08-27 Rule Industries, Inc. Automatic pump control system with variable test cycle initiation frequency
JPH0861287A (ja) * 1994-08-11 1996-03-08 Ebara Corp ポンプ用インバータユニット及びそのユニットを備えたポンプ装置
DE19630384A1 (de) * 1996-07-29 1998-04-23 Becker Kg Gebr Verfahren zur Steuerung oder Regelung eines Aggregats und Frequenzumwandler
US6174136B1 (en) * 1998-10-13 2001-01-16 Liquid Metronics Incorporated Pump control and method of operating same
DE19931961A1 (de) * 1999-07-12 2001-02-01 Danfoss As Verfahren zur Regelung einer Fördergröße einer Pumpe

Also Published As

Publication number Publication date
DE10116339B4 (de) 2005-05-12
FI20020623A (sv) 2002-10-03
FI20020623A0 (sv) 2002-04-02
CN1379541A (zh) 2002-11-13
GB2376534B (en) 2005-03-16
GB2376534A (en) 2002-12-18
DE10116339A1 (de) 2002-10-17
GB0207389D0 (en) 2002-05-08
US20020176783A1 (en) 2002-11-28
US6715996B2 (en) 2004-04-06

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