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JPS56138478A - Detector of pump operation conditions - Google Patents

Detector of pump operation conditions

Info

Publication number
JPS56138478A
JPS56138478A JP4068580A JP4068580A JPS56138478A JP S56138478 A JPS56138478 A JP S56138478A JP 4068580 A JP4068580 A JP 4068580A JP 4068580 A JP4068580 A JP 4068580A JP S56138478 A JPS56138478 A JP S56138478A
Authority
JP
Japan
Prior art keywords
pumps
outflow
detector
pump
discharged
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
JP4068580A
Other languages
Japanese (ja)
Other versions
JPS63639B2 (en
Inventor
Shigeki Masuda
Masakatsu Ooya
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.)
Ebara Corp
Toshiba Corp
Original Assignee
Ebara Corp
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Ebara Corp, Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Ebara Corp
Priority to JP4068580A priority Critical patent/JPS56138478A/en
Publication of JPS56138478A publication Critical patent/JPS56138478A/en
Publication of JPS63639B2 publication Critical patent/JPS63639B2/ja
Granted legal-status Critical Current

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
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/029—Stopping of pumps, or operating valves, on occurrence of unwanted conditions for pumps operating in parallel
    • 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

Landscapes

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

Abstract

PURPOSE: To accurately diagnose operational conditions of pumps by inputting the number of pumps in operation along with a discharged outflow of pumps into a diagnostic device.
CONSTITUTION: Variable speed motors 1aW1c which drive pumps 2aW2c are connected with a detector 5 of the number of pumps in operation, and an outflow signal generator 4 is installed in the flow passage of discharged outflow from the pumps 2aW2c, and further, both said detector 5 and said generator 4 are connected to a diagnostic device 9. This allows a consideration of the maximum and the minimum load corresponding to the number of pumps in operation as well as a diagnosis stressed on the discharged outflow. Accordingly, during water supply with a variable speed motor driven pump, an abnormal outflow and pressure of the pump, abnormality of a cut-off operation and water supply system may be detected with every rotational frequency, leading to an accurate diagnosis of exact conditions of pump operation.
COPYRIGHT: (C)1981,JPO&Japio
JP4068580A 1980-03-29 1980-03-29 Detector of pump operation conditions Granted JPS56138478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4068580A JPS56138478A (en) 1980-03-29 1980-03-29 Detector of pump operation conditions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4068580A JPS56138478A (en) 1980-03-29 1980-03-29 Detector of pump operation conditions

Publications (2)

Publication Number Publication Date
JPS56138478A true JPS56138478A (en) 1981-10-29
JPS63639B2 JPS63639B2 (en) 1988-01-07

Family

ID=12587390

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4068580A Granted JPS56138478A (en) 1980-03-29 1980-03-29 Detector of pump operation conditions

Country Status (1)

Country Link
JP (1) JPS56138478A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59122798A (en) * 1982-12-28 1984-07-16 Fuji Facom Corp Operation of pump
JPS612283U (en) * 1984-06-12 1986-01-08 卓郎 村山 golf practice equipment
JPH0430295U (en) * 1990-07-03 1992-03-11
EP2469094A3 (en) * 2010-12-23 2015-05-06 Wilo Se Method for operating a double pump or multi pump assembly
JP2018100652A (en) * 2016-12-22 2018-06-28 日立アプライアンス株式会社 Well pump device
JP2020133455A (en) * 2019-02-15 2020-08-31 トヨタ自動車株式会社 Fuel pump diagnostic device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59122798A (en) * 1982-12-28 1984-07-16 Fuji Facom Corp Operation of pump
JPS612283U (en) * 1984-06-12 1986-01-08 卓郎 村山 golf practice equipment
JPH0430295U (en) * 1990-07-03 1992-03-11
EP2469094A3 (en) * 2010-12-23 2015-05-06 Wilo Se Method for operating a double pump or multi pump assembly
JP2018100652A (en) * 2016-12-22 2018-06-28 日立アプライアンス株式会社 Well pump device
JP2020133455A (en) * 2019-02-15 2020-08-31 トヨタ自動車株式会社 Fuel pump diagnostic device

Also Published As

Publication number Publication date
JPS63639B2 (en) 1988-01-07

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