RU99124601A - HYDRAULIC EQUIPMENT - Google Patents

HYDRAULIC EQUIPMENT

Info

Publication number
RU99124601A
RU99124601A RU99124601/06A RU99124601A RU99124601A RU 99124601 A RU99124601 A RU 99124601A RU 99124601/06 A RU99124601/06 A RU 99124601/06A RU 99124601 A RU99124601 A RU 99124601A RU 99124601 A RU99124601 A RU 99124601A
Authority
RU
Russia
Prior art keywords
frequency
hydraulic equipment
frequency converter
flow rate
current
Prior art date
Application number
RU99124601/06A
Other languages
Russian (ru)
Other versions
RU2193697C2 (en
Inventor
Макото Кобайаши
Масакацу ЙАМАМОТО
Йошио Мийяке
Каору Йаги
Кейта Уваи
Йошиаки МИЙАЦАКИ
Катсужи Иижима
Original Assignee
Эбара Корпорейшн
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
Priority claimed from JP12356097A external-priority patent/JP3922760B2/en
Application filed by Эбара Корпорейшн filed Critical Эбара Корпорейшн
Publication of RU99124601A publication Critical patent/RU99124601A/en
Application granted granted Critical
Publication of RU2193697C2 publication Critical patent/RU2193697C2/en

Links

Claims (10)

1. Гидравлическое оборудование для выработки давления путем вращения рабочего колеса с помощью двигателя, содержащее: преобразователь частоты для подачи электроэнергии на двигатель; детектор для детектирования частоты и величины тока; и программу, заранее определяющую зависимость между частотой и величиной тока; причем частота и величина тока при реальной работе сравниваются со значениями, определенными программой, а частота, вырабатываемая упомянутым преобразователем частоты, изменяется так, что рабочая точка гидравлического оборудования приближается к значению, определенному программой.1. Hydraulic equipment for generating pressure by rotating the impeller using an engine, comprising: a frequency converter for supplying electricity to the engine; a detector for detecting the frequency and magnitude of the current; and a program predetermining the relationship between frequency and magnitude of the current; moreover, the frequency and magnitude of the current during actual operation are compared with the values determined by the program, and the frequency generated by the mentioned frequency converter is changed so that the operating point of the hydraulic equipment approaches the value determined by the program. 2. Гидравлическое оборудование по п.1, в котором упомянутое гидравлическое оборудование относится к такому типу, в котором мощность вала увеличивается при увеличении скорости потока при постоянной скорости вращения, а скоростью потока гидравлического оборудования управляют так, чтобы поддерживать ее практически постоянной даже тогда, когда изменяется вырабатываемое давление. 2. The hydraulic equipment according to claim 1, wherein said hydraulic equipment is of the type in which the shaft power increases with increasing flow rate at a constant rotational speed, and the flow rate of the hydraulic equipment is controlled so that it is practically constant even when the generated pressure changes. 3. Гидравлическое оборудование по п.1, в котором упомянутое гидравлическое оборудование относится к такому типу, в котором мощность вала уменьшается при увеличении скорости потока при постоянной скорости вращения, а вырабатываемым давлением управляют так, чтобы поддерживать его практически постоянным даже тогда, когда изменяется скорость потока. 3. The hydraulic equipment according to claim 1, wherein said hydraulic equipment is of the type in which the shaft power decreases with increasing flow rate at a constant speed of rotation, and the pressure generated is controlled so as to maintain it practically constant even when the speed changes flow. 4. Гидравлическое оборудование по п.1, в котором частота (Гц) и сила тока (А) связаны однозначной функцией и запрограммированы. 4. The hydraulic equipment according to claim 1, in which the frequency (Hz) and current strength (A) are connected by an unambiguous function and programmed. 5. Гидравлическое оборудование по п. 4, в котором зависимость между упомянутой частотой (Гц) и упомянутой величиной тока (А) выражается как А=К • Гц2 (где К и n представляют собой положительные константы).5. The hydraulic equipment according to claim 4, wherein the relationship between said frequency (Hz) and said current value (A) is expressed as A = K • Hz 2 (where K and n are positive constants). 6. Гидравлическое оборудование по п.5, в котором упомянутый преобразователь частоты имеет средство для изменения значений К и n. 6. The hydraulic equipment according to claim 5, wherein said frequency converter has means for changing the values of K and n. 7. Насосная установка, содержащая: центробежный насос, приводимый в действие трехфазным индуктивным двигателем; преобразователь частоты для подачи электроэнергии на упомянутый трехфазный индуктивный двигатель; детектор в упомянутом преобразователе частоты для детектирования частоты и величины тока; и программу, определяющую зависимость между частотой и величиной тока, хранимую упомянутым преобразователем частоты; причем частота и величина тока при реальной работе сравниваются со значениями, определенными программой, а частота, вырабатываемая упомянутым преобразователем частоты, изменяется так, что рабочая точка насоса приближается к значению, определенному программой, а скоростью потока управляют так, чтобы поддерживать ее практически постоянной, даже тогда, когда изменяется напор упомянутого насоса. 7. A pump installation comprising: a centrifugal pump driven by a three-phase inductive motor; a frequency converter for supplying electricity to said three-phase inductive motor; a detector in said frequency converter for detecting the frequency and magnitude of the current; and a program defining a relationship between the frequency and the magnitude of the current stored by said frequency converter; moreover, the frequency and magnitude of the current during actual operation are compared with the values determined by the program, and the frequency generated by the aforementioned frequency converter changes so that the operating point of the pump approaches the value determined by the program, and the flow rate is controlled so as to maintain it almost constant, even then when the pressure of said pump changes. 8. Насосная установка по п.7, в которой упомянутая насосная установка имеет функцию для перемножения времени, выданного из упомянутого преобразователя частоты, на величину постоянной скорости потока, чтобы тем самым вычислить скорость потока. 8. The pump installation according to claim 7, in which said pump installation has a function for multiplying the time output from said frequency converter by a constant flow rate in order to thereby calculate a flow rate. 9. Насосная установка по п. 8, в которой упомянутый преобразователь частоты содержит индикатор для скорости потока. 9. The pump installation of claim 8, wherein said frequency converter comprises an indicator for flow rate. 10. Насосная установка по п.8, в которой с помощью функции памяти упомянутого преобразователя частоты упомянутая насосная установка может автоматически работать для выполнения задачи доставки определенного количества воды за каждый определенный период времени в течение нескольких следующих друг за другом дней, остановки выполнения этой задачи на определенное количество следующих друг за другом дней, и выполнения этой задачи в течение определенного количества следующих друг за другом дней. 10. The pump installation of claim 8, in which, using the memory function of said frequency converter, said pump installation can automatically operate to perform the task of delivering a certain amount of water for each specific period of time for several consecutive days, stopping the execution of this task for a certain number of consecutive days, and completing this task within a certain number of consecutive days.
RU99124601/06A 1997-04-25 1998-04-22 Hydraulic equipment RU2193697C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP12356097A JP3922760B2 (en) 1997-04-25 1997-04-25 Fluid machinery
JP9-123560 1997-04-25

Publications (2)

Publication Number Publication Date
RU99124601A true RU99124601A (en) 2001-08-20
RU2193697C2 RU2193697C2 (en) 2002-11-27

Family

ID=14863618

Family Applications (1)

Application Number Title Priority Date Filing Date
RU99124601/06A RU2193697C2 (en) 1997-04-25 1998-04-22 Hydraulic equipment

Country Status (10)

Country Link
US (1) US6350105B1 (en)
EP (1) EP0978657B1 (en)
JP (1) JP3922760B2 (en)
KR (1) KR100533699B1 (en)
CN (1) CN1268847C (en)
AU (1) AU722386B2 (en)
DE (1) DE69822808T2 (en)
ID (1) ID24674A (en)
RU (1) RU2193697C2 (en)
WO (1) WO1998049449A1 (en)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10152497A1 (en) * 2001-10-24 2003-05-15 Pierburg Gmbh Wet rotor
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
DE10252754A1 (en) * 2002-11-13 2004-06-17 Rexroth Indramat Gmbh Electric motor with a device for temperature monitoring
ITTO20030392A1 (en) * 2003-05-28 2004-11-29 Varian Spa VACUUM PUMPING SYSTEM.
US8762577B2 (en) * 2003-06-30 2014-06-24 Apple Inc. Method and system for providing network synchronization with a unified messaging system
US8540493B2 (en) 2003-12-08 2013-09-24 Sta-Rite Industries, Llc Pump control system and method
US8480373B2 (en) 2004-08-26 2013-07-09 Pentair Water Pool And Spa, Inc. Filter loading
US8019479B2 (en) 2004-08-26 2011-09-13 Pentair Water Pool And Spa, Inc. Control algorithm of variable speed pumping system
US7854597B2 (en) 2004-08-26 2010-12-21 Pentair Water Pool And Spa, Inc. Pumping system with two way communication
US8602745B2 (en) 2004-08-26 2013-12-10 Pentair Water Pool And Spa, Inc. Anti-entrapment and anti-dead head function
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
US7874808B2 (en) 2004-08-26 2011-01-25 Pentair Water Pool And Spa, Inc. Variable speed pumping system and method
US8469675B2 (en) 2004-08-26 2013-06-25 Pentair Water Pool And Spa, Inc. Priming protection
DE102004060206B3 (en) * 2004-12-14 2006-06-14 Siemens Ag Method for operating a converter-fed compressor
US7518333B1 (en) * 2005-03-07 2009-04-14 Gary Randolph Fisher Dynamic reef surge generation
EP1847714B1 (en) 2006-04-20 2016-11-09 ABB Oy Frequency converter for motor pump
JP5004498B2 (en) * 2006-04-27 2012-08-22 パナソニック株式会社 Pump operation support system
DE102006026681A1 (en) * 2006-06-02 2007-12-06 Laing, Oliver Coil module for a stator of an electric motor, stator, electric motor, circulation pump and method for producing a stator
DE102006026678A1 (en) * 2006-06-02 2007-12-06 Laing, Oliver circulating pump
DE102007022348A1 (en) * 2007-05-12 2008-11-13 Ksb Aktiengesellschaft Device and method for fault monitoring
US8774972B2 (en) * 2007-05-14 2014-07-08 Flowserve Management Company Intelligent pump system
AU2009302593B2 (en) 2008-10-06 2015-05-28 Danfoss Low Power Drives Method of operating a safety vacuum release system
US8400035B2 (en) 2008-12-27 2013-03-19 Schlumberger Technology Corporation Rotor bearing assembly
US8622713B2 (en) * 2008-12-29 2014-01-07 Little Giant Pump Company Method and apparatus for detecting the fluid condition in a pump
US8425200B2 (en) 2009-04-21 2013-04-23 Xylem IP Holdings LLC. Pump controller
EP2246569B1 (en) * 2009-04-21 2023-06-28 Xylem IP Holdings LLC Pump controller
US9556874B2 (en) 2009-06-09 2017-01-31 Pentair Flow Technologies, Llc Method of controlling a pump and motor
US8436559B2 (en) 2009-06-09 2013-05-07 Sta-Rite Industries, Llc System and method for motor drive control pad and drive terminals
US8564233B2 (en) 2009-06-09 2013-10-22 Sta-Rite Industries, Llc Safety system and method for pump and motor
US8961149B2 (en) 2010-07-19 2015-02-24 Runtech Systems Oy Method for controlling a regulated-rotation-speed low-pressure centrifugal fan
FI125258B (en) * 2010-07-19 2015-08-14 Runtech Systems Oy Method of controlling a vacuum centrifugal fan with adjustable rotational speed
WO2012078862A2 (en) 2010-12-08 2012-06-14 Pentair Water Pool And Spa, Inc. Discharge vacuum relief valve for safety vacuum release system
US8700221B2 (en) 2010-12-30 2014-04-15 Fluid Handling Llc Method and apparatus for pump control using varying equivalent system characteristic curve, AKA an adaptive control curve
EP2667033B1 (en) * 2011-01-21 2019-10-23 Ebara Corporation Water supply apparatus
BR112014010665A2 (en) 2011-11-01 2017-12-05 Pentair Water Pool & Spa Inc flow blocking system and process
DE102011087041A1 (en) * 2011-11-24 2013-05-29 Continental Automotive Gmbh Apparatus and method for operating a fuel delivery system and fuel delivery system
CA2856447C (en) 2011-12-16 2019-06-04 Fluid Handling Llc Dynamic linear control methods and apparatus for variable speed pump control
ES2510892T3 (en) * 2011-12-29 2014-10-21 Espa 2025, S.L. Procedure to stop a hydraulic pump with adjustable rotation speed in a hydraulic installation and hydraulic pump controller
US20130189131A1 (en) * 2012-01-19 2013-07-25 Han-Lung Huang Water cooled motor with stainless steel cooling jacket
DE102012006444A1 (en) * 2012-03-30 2013-10-02 Wilo Se Method for operating a pump set
IN2014KN02746A (en) 2012-06-14 2015-05-08 Flow Control LLC
US9885360B2 (en) 2012-10-25 2018-02-06 Pentair Flow Technologies, Llc Battery backup sump pump systems and methods
RU2681390C2 (en) 2013-07-25 2019-03-06 Флюид Хэндлинг ЭлЭлСи Sensorless adaptive pump control with self-calibration apparatus for hydronic pumping system
RU2539252C1 (en) * 2013-08-06 2015-01-20 Валентин Романович Гуняков Oxidiser for internal surfaces of hollow cylindrical parts
CN103671054B (en) * 2013-12-06 2016-09-28 杭州哲达科技股份有限公司 Nothing sensing constant current conversion method and device for fluid supply system
EP3129756A4 (en) * 2014-04-08 2017-11-22 Fluid Handling LLC. Best-fit affinity sensorless conversion means or technique for pump differential pressure and flow monitoring
WO2017214701A1 (en) 2016-06-14 2017-12-21 S. A. Armstrong Limited Self-regulating open circuit pump unit
US9977433B1 (en) 2017-05-05 2018-05-22 Hayward Industries, Inc. Automatic pool cleaner traction correction
SG11202102259WA (en) 2018-10-05 2021-04-29 S A Armstrong Ltd Feed forward flow control of heat transfer system
JP2021032193A (en) * 2019-08-28 2021-03-01 株式会社荏原製作所 Pump device
JP2022090957A (en) * 2020-12-08 2022-06-20 富士電機株式会社 Pump clogging detection system

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE413947B (en) * 1977-11-24 1980-06-30 Pumpex Production Ab PROCEDURE FOR CONTINUOUS CONTROL OF SPEED AND FOR VARIATION OF PERFORMANCE OF A ROTODYNAMIC TYPE WASTE PUMP AND REGULATOR FOR IMPLEMENTATION OF THE PROCEDURE
DD136520A1 (en) * 1978-05-29 1979-07-11 Hans Spengler HIGH PRESSURE PUMPS UNIT
DE3210641A1 (en) * 1982-03-23 1983-10-06 Dupont Inc ENERGY-SAVING HEAT CARRIER CIRCUIT PUMP, ESPECIALLY FOR HEAT PUMP HEATERS
CH651111A5 (en) * 1982-07-28 1985-08-30 Cerac Inst Sa PUMPING INSTALLATION AND METHOD FOR ACTIVATING THE SAME.
US4633157A (en) * 1984-08-27 1986-12-30 Franklin Electric Co., Inc. Control system for permanent magnet synchronous motor
JPS61190194A (en) * 1985-02-19 1986-08-23 Sanyo Electric Co Ltd Method of controlling pump
GB2176667B (en) * 1985-06-11 1989-07-05 Toshiba Kk Electric motor running system employing a photovoltaic array
US5212438A (en) * 1987-09-24 1993-05-18 Kabushiki Kaisha Toshiba Induction motor control system
JPH02118362A (en) * 1988-10-26 1990-05-02 Hitachi Ltd Capacity control air conditioner
DK1293A (en) * 1992-08-21 1994-02-22 Smedegaard As Method of controlling an electric motor operating a centrifugal pump
AT405996B (en) * 1993-07-09 2000-01-25 Rudin Franz METHOD FOR REGULATING THE SPEED OF AN ELECTRIC MOTOR AND DEVICE FOR IMPLEMENTING THE METHOD
KR100344716B1 (en) * 1993-09-20 2002-11-23 가부시키 가이샤 에바라 세이사꾸쇼 Pump operation control device
JP3077490B2 (en) * 1993-12-28 2000-08-14 株式会社荏原製作所 Pump assembly
US5580221A (en) * 1994-10-05 1996-12-03 Franklin Electric Co., Inc. Motor drive circuit for pressure control of a pumping system
JPH0988871A (en) * 1995-09-18 1997-03-31 Hitachi Ltd Device and method for controlling rotary machine
JPH0996292A (en) * 1995-10-02 1997-04-08 Tsurumi Mfg Co Ltd Rotational speed control device for motor-driven pump
JPH09119378A (en) * 1995-10-25 1997-05-06 Ishikawajima Harima Heavy Ind Co Ltd Turbo compressor
JP3321356B2 (en) * 1996-05-20 2002-09-03 株式会社日立製作所 Motor control device and control device for electric vehicle

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