EP0194474A3 - Method for regulating cavitation - Google Patents

Method for regulating cavitation Download PDF

Info

Publication number
EP0194474A3
EP0194474A3 EP86102057A EP86102057A EP0194474A3 EP 0194474 A3 EP0194474 A3 EP 0194474A3 EP 86102057 A EP86102057 A EP 86102057A EP 86102057 A EP86102057 A EP 86102057A EP 0194474 A3 EP0194474 A3 EP 0194474A3
Authority
EP
European Patent Office
Prior art keywords
cavitation
delivery
regulating
minimum residual
liquids
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.)
Granted
Application number
EP86102057A
Other languages
German (de)
Other versions
EP0194474B1 (en
EP0194474A2 (en
Inventor
Klaus Metzger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Metzger Klaus
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6265137&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0194474(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to AT86102057T priority Critical patent/ATE96505T1/en
Publication of EP0194474A2 publication Critical patent/EP0194474A2/en
Publication of EP0194474A3 publication Critical patent/EP0194474A3/en
Application granted granted Critical
Publication of EP0194474B1 publication Critical patent/EP0194474B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/20—Arrangements or systems of devices for influencing or altering dynamic characteristics of the systems, e.g. for damping pulsations caused by opening or closing of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/02—Pipe-line systems for gases or vapours
    • F17D1/065—Arrangements for producing propulsion of gases or vapours
    • F17D1/07—Arrangements for producing propulsion of gases or vapours by compression

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Details Of Valves (AREA)
  • Control Of Conveyors (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Hydraulic Turbines (AREA)
  • Control Of Non-Electrical Variables (AREA)

Abstract

During the delivery or transport of liquids and/or gases by means of delivery units, a minimum residual cavitation by means of a regulating circuit is deliberately permitted. The cavitation is measured with the aid of a pressure sensor which transmits a voltage corresponding to the cavitation to a microprocessor. The latter controls the speed of the delivery unit used in such a way that a minimum residual cavitation is retained. <IMAGE>
EP86102057A 1985-03-14 1986-02-18 Method for regulating cavitation Revoked EP0194474B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86102057T ATE96505T1 (en) 1985-03-14 1986-02-18 PROCEDURE FOR CAVITATION ADJUSTMENT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3509072 1985-03-14
DE19853509072 DE3509072A1 (en) 1985-03-14 1985-03-14 METHOD FOR SETTING THE CAVITATION

Publications (3)

Publication Number Publication Date
EP0194474A2 EP0194474A2 (en) 1986-09-17
EP0194474A3 true EP0194474A3 (en) 1989-03-08
EP0194474B1 EP0194474B1 (en) 1993-10-27

Family

ID=6265137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86102057A Revoked EP0194474B1 (en) 1985-03-14 1986-02-18 Method for regulating cavitation

Country Status (9)

Country Link
EP (1) EP0194474B1 (en)
JP (1) JPS61283779A (en)
CN (1) CN86101484A (en)
AT (1) ATE96505T1 (en)
AU (1) AU5471386A (en)
DE (2) DE3509072A1 (en)
DK (1) DK107386A (en)
FI (1) FI861033A (en)
ZA (1) ZA861395B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19517289A1 (en) * 1995-05-11 1996-11-14 Klein Schanzlin & Becker Ag Monitoring system for determining a cavitation intensity
DE19645129A1 (en) * 1996-11-04 1998-05-07 Abb Patent Gmbh Cavitation protection of pump governed according to rotational speed
DE19815242A1 (en) * 1998-04-04 1999-10-07 Rossendorf Forschzent Arrangement for preventing a cavitation blow when a pipeline used for transporting liquids is quickly shut off
DE19826292A1 (en) * 1998-06-12 1999-12-23 Linde Ag Process for operating a pump to convey boiling refrigerants or refrigerants
DE19858946A1 (en) * 1998-12-09 2000-06-15 Ver Energiewerke Ag Detecting cavitation in multiple stage centrifugal pump involves comparing pressure difference between input and one pump stage with desired delivery value for a pump stage
CN101520391B (en) * 2009-04-01 2011-01-05 奇瑞汽车股份有限公司 Cavitation erosion test method of engine cooling system stand
JP5597597B2 (en) * 2011-06-09 2014-10-01 株式会社神戸製鋼所 Power generator
US9255578B2 (en) * 2012-07-31 2016-02-09 Fisher-Rosemount Systems, Inc. Systems and methods to monitor pump cavitation
JP6639013B2 (en) * 2016-03-14 2020-02-05 株式会社神戸製鋼所 Resin pelletizer device and cavitation monitoring method
CN107906058B (en) * 2017-10-31 2019-07-23 中广核工程有限公司 A kind of monitoring system and method preventing nuclear power plant's vacuum pump cavitation
CN109681474B (en) * 2019-01-21 2023-08-18 中国科学院工程热物理研究所 Automatic adjusting device and method for inhibiting cavitation of centrifugal pump
CN110307469A (en) * 2019-07-24 2019-10-08 中国海洋石油集团有限公司 A kind of LNG receiving station high pressure pump system and its control method
CN110985449B (en) * 2019-12-04 2020-10-30 武汉理工大学 Large-scale mail steamer water supply system and centrifugal pump cavitation erosion prevention device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH528076A (en) * 1970-12-23 1972-09-15 List Hans Strain gauge transducers, in particular pressure transducers
DE3236815A1 (en) * 1982-10-05 1984-04-05 Klaus Dipl.-Ing.(FH) 6831 Brühl Metzger Monitoring and inspection device on pipelines for the transport of liquids for suppressing cavitation and improving the operating conditions
EP0107572A1 (en) * 1982-10-28 1984-05-02 Societe Nationale D'etude Et De Construction De Moteurs D'aviation, "S.N.E.C.M.A." Device and method for the detection of the cavitation protection of a displacement pump
EP0171094A1 (en) * 1982-07-28 1986-02-12 Institut Cerac S.A. A method of driving the impeller of a liquid pump

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5177905A (en) * 1974-12-27 1976-07-06 Tokyo Shibaura Electric Co DENJIHON PUSOCHI
US4330238A (en) * 1980-03-04 1982-05-18 The United States Of America As Represented By The Secretary Of The Navy Automatic actuator for variable speed pump
JPS57105580A (en) * 1980-12-19 1982-07-01 Hitachi Zosen Corp Control method for pump operation
JPS57159981A (en) * 1981-03-30 1982-10-02 Hitachi Constr Mach Co Ltd Abnormal pressure indicator in suction side circuit of hydraulic pump
JPS57183582A (en) * 1981-05-08 1982-11-11 Hitachi Zosen Corp Operational control method of pump
JPS5968582A (en) * 1982-10-14 1984-04-18 Mitsubishi Heavy Ind Ltd Automatic setting device of cavitation limit of dredge pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH528076A (en) * 1970-12-23 1972-09-15 List Hans Strain gauge transducers, in particular pressure transducers
EP0171094A1 (en) * 1982-07-28 1986-02-12 Institut Cerac S.A. A method of driving the impeller of a liquid pump
DE3236815A1 (en) * 1982-10-05 1984-04-05 Klaus Dipl.-Ing.(FH) 6831 Brühl Metzger Monitoring and inspection device on pipelines for the transport of liquids for suppressing cavitation and improving the operating conditions
EP0107572A1 (en) * 1982-10-28 1984-05-02 Societe Nationale D'etude Et De Construction De Moteurs D'aviation, "S.N.E.C.M.A." Device and method for the detection of the cavitation protection of a displacement pump

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MACHINE DESIGN, Band 50, Nr. 5, 9. März 1978, Seiten 97-99; Z. ZAHID: "Suction accumulators boost pump life" *
PATENT ABSTRACTS OF JAPAN, Band 8, Nr. 37 (M-277)[1474], 17. Februar 1984; & JP-A-58 192 983 (MITSUBISHI JUKOGYO K.K.) 10-11-1983 *

Also Published As

Publication number Publication date
ATE96505T1 (en) 1993-11-15
EP0194474B1 (en) 1993-10-27
EP0194474A2 (en) 1986-09-17
ZA861395B (en) 1986-11-26
JPS61283779A (en) 1986-12-13
FI861033A0 (en) 1986-03-13
DE3509072C2 (en) 1987-06-25
DE3509072A1 (en) 1986-09-25
CN86101484A (en) 1987-01-07
DK107386D0 (en) 1986-03-10
DK107386A (en) 1986-09-15
FI861033A (en) 1986-09-15
DE3689199D1 (en) 1993-12-02
AU5471386A (en) 1986-09-18

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