JPS5463404A - Pump device - Google Patents

Pump device

Info

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
Application number
JP13045577A
Other languages
Japanese (ja)
Other versions
JPS5647398B2 (en
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 JP13045577A priority Critical patent/JPS5463404A/en
Publication of JPS5463404A publication Critical patent/JPS5463404A/en
Publication of JPS5647398B2 publication Critical patent/JPS5647398B2/ja
Granted 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 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
JP13045577A 1977-10-31 1977-10-31 Pump device Granted JPS5463404A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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