JPS5751971A - Apparatus for preventing cavitation of pump - Google Patents
Apparatus for preventing cavitation of pumpInfo
- Publication number
- JPS5751971A JPS5751971A JP12770880A JP12770880A JPS5751971A JP S5751971 A JPS5751971 A JP S5751971A JP 12770880 A JP12770880 A JP 12770880A JP 12770880 A JP12770880 A JP 12770880A JP S5751971 A JPS5751971 A JP S5751971A
- Authority
- JP
- Japan
- Prior art keywords
- pressurized gas
- suction
- pressure
- cavitation
- reduction
- 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)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
PURPOSE: To prevent generation of cavitation by sealing pressurized gas into a surging tank and allowing the pressurized gas to expand when the pump suction pressure reduces sharply.
CONSTITUTION: As the suction pressures of water feeding pumps 4A, 4B, and 4C are high in normal operation state, a change-over valve 16 is closed through a pressure introducting pipe 18, and the pressurized gas in the upper part of a surge tank 12 is compressed by the fluid pressure in a pressuerizing pipe 13. When the functions of condensing pumps 9A, 9B, and 9C are lost, and the suction pressues of the water feeding pumps 4A, 4B, and 4C reduce lower than the initial value P1, then the pressurized gas in compression state in the upper part of the surge tank 12 expands immediately in correspondence to the reduction of the suction pressure, so reduction of the suction pressure is restricted, and generation of cavitation can be prevented.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12770880A JPS5751971A (en) | 1980-09-13 | 1980-09-13 | Apparatus for preventing cavitation of pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12770880A JPS5751971A (en) | 1980-09-13 | 1980-09-13 | Apparatus for preventing cavitation of pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5751971A true JPS5751971A (en) | 1982-03-27 |
Family
ID=14966736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12770880A Pending JPS5751971A (en) | 1980-09-13 | 1980-09-13 | Apparatus for preventing cavitation of pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5751971A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6038508A (en) * | 1983-08-11 | 1985-02-28 | 株式会社テイエルブイ | Condensed water recovering pump device |
| WO2015037669A1 (en) * | 2013-09-12 | 2015-03-19 | 株式会社 荏原製作所 | Device and method for alleviating and preventing cavitation surge of water supply conduit system |
-
1980
- 1980-09-13 JP JP12770880A patent/JPS5751971A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6038508A (en) * | 1983-08-11 | 1985-02-28 | 株式会社テイエルブイ | Condensed water recovering pump device |
| WO2015037669A1 (en) * | 2013-09-12 | 2015-03-19 | 株式会社 荏原製作所 | Device and method for alleviating and preventing cavitation surge of water supply conduit system |
| JPWO2015037669A1 (en) * | 2013-09-12 | 2017-03-02 | 株式会社荏原製作所 | Apparatus and method for mitigating and preventing cavitation surge in a water pipe system |
| JP2019105274A (en) * | 2013-09-12 | 2019-06-27 | 株式会社荏原製作所 | Device and method for relaxing and preventing cavitation surge in water transfer pipe line system |
| US11378084B2 (en) | 2013-09-12 | 2022-07-05 | Ebara Corporation | Apparatus and method for alleviating and preventing cavitation surge of water supply conduit system |
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