JPS57105580A - Control method for pump operation - Google Patents
Control method for pump operationInfo
- Publication number
- JPS57105580A JPS57105580A JP18086780A JP18086780A JPS57105580A JP S57105580 A JPS57105580 A JP S57105580A JP 18086780 A JP18086780 A JP 18086780A JP 18086780 A JP18086780 A JP 18086780A JP S57105580 A JPS57105580 A JP S57105580A
- Authority
- JP
- Japan
- Prior art keywords
- cavitation
- pump
- generation
- control unit
- sound
- 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.)
- Pending
Links
Landscapes
- Reciprocating Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
PURPOSE: To control the pump so as to reduce the suction rate when the cavitation is generated by a method wherein the sound or vibration produced at the generation of cavitation is memorized and the generation of cavitation during the running of the pump is judged from said memorized information.
CONSTITUTION: The output of an acoustic measuring instrument 8 mounted on a cargo oil pump 2 is inputted in a control unit 9 equipped with a computer. The pump 2 is actually operated under the condition that the sound produced is measured throughout the operation and the sound pressure, sound frequency and the like at the generation of cavitation are memorized in the control unit 9. Once the pump 2 is operated and, when the liquid level of cargo oil lowers to the predetermined position, the control unit 9 is put into operation to successively measure the sound produced so as to decide the generation of cavitation by comparing the measured value with the memorized value. When the control unit 9 decides the generation of cavitation, a valve 7 is automatically throttled or the rotational frequency of the pump 2 is automatically lowered.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18086780A JPS57105580A (en) | 1980-12-19 | 1980-12-19 | Control method for pump operation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18086780A JPS57105580A (en) | 1980-12-19 | 1980-12-19 | Control method for pump operation |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57105580A true JPS57105580A (en) | 1982-07-01 |
Family
ID=16090733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18086780A Pending JPS57105580A (en) | 1980-12-19 | 1980-12-19 | Control method for pump operation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57105580A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61283779A (en) * | 1985-03-14 | 1986-12-13 | クラウス・メツガ− | Method of controlling fluid transporter |
US5010739A (en) * | 1989-06-30 | 1991-04-30 | Kabushiki Kaisha Toshiba | Air conditioning apparatus having audible sound level control function |
JP2010534791A (en) * | 2007-07-27 | 2010-11-11 | ザ セクレタリー オブ ステイト フォー トレイド アンド インダストリー | Cavitation detection |
-
1980
- 1980-12-19 JP JP18086780A patent/JPS57105580A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61283779A (en) * | 1985-03-14 | 1986-12-13 | クラウス・メツガ− | Method of controlling fluid transporter |
US5010739A (en) * | 1989-06-30 | 1991-04-30 | Kabushiki Kaisha Toshiba | Air conditioning apparatus having audible sound level control function |
JP2010534791A (en) * | 2007-07-27 | 2010-11-11 | ザ セクレタリー オブ ステイト フォー トレイド アンド インダストリー | Cavitation detection |
US8696321B2 (en) | 2007-07-27 | 2014-04-15 | The Secretary Of State For Trade And Industry | Cavitation detection |
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