JPS5463404A - Pump device - Google Patents
Pump deviceInfo
- Publication number
- JPS5463404A JPS5463404A JP13045577A JP13045577A JPS5463404A JP S5463404 A JPS5463404 A JP S5463404A JP 13045577 A JP13045577 A JP 13045577A JP 13045577 A JP13045577 A JP 13045577A JP S5463404 A JPS5463404 A JP S5463404A
- Authority
- JP
- Japan
- Prior art keywords
- cover gas
- fluid
- liquid
- oil
- variation
- 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
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE: To insure safe sealing of the liquid pump system in whose space in contact with fluid surface cover gas is sealed without causing said cover gas to leak despite the variation in flow of fluid or the variation in pressure of said cover gas.
CONSTITUTION: The fluid sucked in through a suction nozzle 10 is pressurized by an impellor 11 and descharged through a discharge nozzle 12. A portion thereof leaks out into the upper part of a pump through a bearing 13, flows in an overflow column 20 through an overflow pipe 16 and is refluxed through a return pipe 21. In this case, a desired purpose is attained by interconnecting a switch valve 38 which operates in accordance with the signal from the level meter 22 for detecting the level 24 of liquid in said column 20 to deal cover gas 18 in the space in contact with liquid surface 24, a cover gas system 44 for adjusting the oil pressure of the oil storage tank 35 of an oil-lubricated mechanical sealing device and a cover gas system 43 including said switch valve 38 by means of a check valve 39 and a bypass valve 40.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13045577A JPS5463404A (en) | 1977-10-31 | 1977-10-31 | Pump device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13045577A JPS5463404A (en) | 1977-10-31 | 1977-10-31 | Pump device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5463404A true JPS5463404A (en) | 1979-05-22 |
JPS5647398B2 JPS5647398B2 (en) | 1981-11-09 |
Family
ID=15034638
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13045577A Granted JPS5463404A (en) | 1977-10-31 | 1977-10-31 | Pump device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5463404A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5641491A (en) * | 1979-09-14 | 1981-04-18 | Toshiba Corp | Pump |
CN105351245A (en) * | 2015-12-04 | 2016-02-24 | 天津市天鼓机械制造有限公司 | Mechanical sealing medium supplying control device for roots blower |
-
1977
- 1977-10-31 JP JP13045577A patent/JPS5463404A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5641491A (en) * | 1979-09-14 | 1981-04-18 | Toshiba Corp | Pump |
CN105351245A (en) * | 2015-12-04 | 2016-02-24 | 天津市天鼓机械制造有限公司 | Mechanical sealing medium supplying control device for roots blower |
Also Published As
Publication number | Publication date |
---|---|
JPS5647398B2 (en) | 1981-11-09 |
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