JPS5474060A - Shaft sealing device - Google Patents

Shaft sealing device

Info

Publication number
JPS5474060A
JPS5474060A JP13995977A JP13995977A JPS5474060A JP S5474060 A JPS5474060 A JP S5474060A JP 13995977 A JP13995977 A JP 13995977A JP 13995977 A JP13995977 A JP 13995977A JP S5474060 A JPS5474060 A JP S5474060A
Authority
JP
Japan
Prior art keywords
compressor
gas
sealing
sealing device
pressure
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
JP13995977A
Other languages
Japanese (ja)
Inventor
Tadanobu Negishi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13995977A priority Critical patent/JPS5474060A/en
Publication of JPS5474060A publication Critical patent/JPS5474060A/en
Pending legal-status Critical Current

Links

Landscapes

  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

PURPOSE: A shaft sealing device which is made compact and well maintained by relocating a head tank at the lower position.
CONSTITUTION: A transmitter 14 converts a difference in pressure between sealing liquid and gas in a compressor 1 into an air signal. A controller 15 receives the signal to control a control valve 13 for a constant sealing differential pressure approximately 0.5 mb. higher than the gas pressure in the compressor 1. Discharge gas from the compressor 1, controlled by the valve to have a pressure equal to the sealing differential pressure, is fed into a head tank 9. A required sealing differential pressure applied to a seal 3 in the compressor 1 can prevent the gas from leaking from the compressor 1 to the outside of the sealing device.
COPYRIGHT: (C)1979,JPO&Japio
JP13995977A 1977-11-24 1977-11-24 Shaft sealing device Pending JPS5474060A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13995977A JPS5474060A (en) 1977-11-24 1977-11-24 Shaft sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13995977A JPS5474060A (en) 1977-11-24 1977-11-24 Shaft sealing device

Publications (1)

Publication Number Publication Date
JPS5474060A true JPS5474060A (en) 1979-06-13

Family

ID=15257646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13995977A Pending JPS5474060A (en) 1977-11-24 1977-11-24 Shaft sealing device

Country Status (1)

Country Link
JP (1) JPS5474060A (en)

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