JPS5463403A - Pump device - Google Patents
Pump deviceInfo
- Publication number
- JPS5463403A JPS5463403A JP13045477A JP13045477A JPS5463403A JP S5463403 A JPS5463403 A JP S5463403A JP 13045477 A JP13045477 A JP 13045477A JP 13045477 A JP13045477 A JP 13045477A JP S5463403 A JPS5463403 A JP S5463403A
- Authority
- JP
- Japan
- Prior art keywords
- cover gas
- pressure
- oil
- fluid
- liquid
- 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
- 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 discharged 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, desired purpose is attained by providing a switch valve 25 which operates in accordance with the signal from the level meter 22 for detecting the level 24 of liquid in said column 20 to seal cover gas 18 in the space in contact with liquid surface 24, and a cover gas supply valve 38 and a cover gas discharge valve 41 which operate in accordance with the signal from the differential pressure gauge 41 for detecting the difference between the oil pressure of the oil storage tank 35 of an oil-lubricated mechanical sealing device and the pressure of said cover gas 18 to adjust oil pressure.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13045477A JPS5463403A (en) | 1977-10-31 | 1977-10-31 | Pump device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13045477A JPS5463403A (en) | 1977-10-31 | 1977-10-31 | Pump device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5463403A true JPS5463403A (en) | 1979-05-22 |
Family
ID=15034612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13045477A Pending JPS5463403A (en) | 1977-10-31 | 1977-10-31 | Pump device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5463403A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104235052A (en) * | 2014-07-23 | 2014-12-24 | 中国航天科技集团公司第六研究院第十一研究所 | Novel pressure stabilization device for double-end surface sealing of turbine pump |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS514604A (en) * | 1974-07-03 | 1976-01-14 | Hitachi Ltd | |
JPS529102A (en) * | 1975-07-11 | 1977-01-24 | Creusot Loire | Sealing means for preventing gas leakage at one end of rotating shaft in centrifugal compressor |
-
1977
- 1977-10-31 JP JP13045477A patent/JPS5463403A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS514604A (en) * | 1974-07-03 | 1976-01-14 | Hitachi Ltd | |
JPS529102A (en) * | 1975-07-11 | 1977-01-24 | Creusot Loire | Sealing means for preventing gas leakage at one end of rotating shaft in centrifugal compressor |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104235052A (en) * | 2014-07-23 | 2014-12-24 | 中国航天科技集团公司第六研究院第十一研究所 | Novel pressure stabilization device for double-end surface sealing of turbine pump |
CN104235052B (en) * | 2014-07-23 | 2016-06-29 | 中国航天科技集团公司第六研究院第十一研究所 | A kind of turbine pump double seals stable-pressure device |
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