JPS5463403A - Pump device - Google Patents

Pump device

Info

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
Application number
JP13045477A
Other languages
Japanese (ja)
Inventor
Michiyuki Miyahara
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.)
Toshiba Corp
Nippon Atomic Industry Group Co Ltd
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Nippon Atomic Industry Group 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd, Nippon Atomic Industry Group Co Ltd filed Critical Toshiba Corp
Priority to JP13045477A priority Critical patent/JPS5463403A/en
Publication of JPS5463403A publication Critical patent/JPS5463403A/en
Pending legal-status Critical Current

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
JP13045477A 1977-10-31 1977-10-31 Pump device Pending JPS5463403A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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