JPS5580025A - Method for detecting pressure in seal oil device - Google Patents

Method for detecting pressure in seal oil device

Info

Publication number
JPS5580025A
JPS5580025A JP15302678A JP15302678A JPS5580025A JP S5580025 A JPS5580025 A JP S5580025A JP 15302678 A JP15302678 A JP 15302678A JP 15302678 A JP15302678 A JP 15302678A JP S5580025 A JPS5580025 A JP S5580025A
Authority
JP
Japan
Prior art keywords
oil
safety valve
pressure
seal
pump
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
JP15302678A
Other languages
Japanese (ja)
Inventor
Hiroyuki Kojo
Masayuki Morihara
Masaji Sonoda
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 Engineering Corp
Toshiba Corp
Original Assignee
Toshiba Engineering Corp
Toshiba Corp
Tokyo Shibaura Electric 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 Engineering Corp, Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Engineering Corp
Priority to JP15302678A priority Critical patent/JPS5580025A/en
Publication of JPS5580025A publication Critical patent/JPS5580025A/en
Pending legal-status Critical Current

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  • Measuring Fluid Pressure (AREA)

Abstract

PURPOSE: To prevent the leak of hydrogen gas from the sealing part of the shaft by providing a safety valve with an orifice to the output side of the normal seal-oil pump in order to increase the action rate of the pressure switch and by driving the emergency pump on catching a drop of oil pressure quickly.
CONSTITUTION: The safety valve 19 with an orifice is provided to the detecting pipe in the output side of the normal seal-oil pump 4, and is connected with the return pipe 17 to return the oil to the vacuum tank 13. The pressure of the safety valve 19 is set to the level slightly less than the discharge pressure of the normal seal-oil pump. When the normal pump 4 is stopped, the safety valve is operated and connected to the return pipe 17, the oil flows in the vacuum tank 13. Since the orifice is provided in the oil feed side of the safety valve, the inlet is closed by the valve as soon as the flow of pressurized oil is delayed, the pressure switch 18 can quickly be operated. Accordingly the pressure switch 18 is operated before a drop of pressure in the shaft seal-oil feed pipe 6, the emergency seal-oil pump 5 is started, and the leak of hydrogen for cooling the generator is prevented.
COPYRIGHT: (C)1980,JPO&Japio
JP15302678A 1978-12-13 1978-12-13 Method for detecting pressure in seal oil device Pending JPS5580025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15302678A JPS5580025A (en) 1978-12-13 1978-12-13 Method for detecting pressure in seal oil device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15302678A JPS5580025A (en) 1978-12-13 1978-12-13 Method for detecting pressure in seal oil device

Publications (1)

Publication Number Publication Date
JPS5580025A true JPS5580025A (en) 1980-06-16

Family

ID=15553331

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15302678A Pending JPS5580025A (en) 1978-12-13 1978-12-13 Method for detecting pressure in seal oil device

Country Status (1)

Country Link
JP (1) JPS5580025A (en)

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