JPS57116986A - Control system of stop valve - Google Patents

Control system of stop valve

Info

Publication number
JPS57116986A
JPS57116986A JP319581A JP319581A JPS57116986A JP S57116986 A JPS57116986 A JP S57116986A JP 319581 A JP319581 A JP 319581A JP 319581 A JP319581 A JP 319581A JP S57116986 A JPS57116986 A JP S57116986A
Authority
JP
Japan
Prior art keywords
chamber
valve
steam
flow control
bypass pipe
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
JP319581A
Other languages
Japanese (ja)
Other versions
JPS5834717B2 (en
Inventor
Naohiko Iwata
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 JP319581A priority Critical patent/JPS5834717B2/en
Publication of JPS57116986A publication Critical patent/JPS57116986A/en
Publication of JPS5834717B2 publication Critical patent/JPS5834717B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To perform fine adjustment of pressure in a chamber at any time even during operation of a turbine in a system used for a high pressure feed water system of nuclear power generation, by communicating a steam inlet chamber side to a balance chamber side in a valve box through a bypass pipe equipped with a flow control valve.
CONSTITUTION: The side of a steam inlet chamber 3 and the side of a balance chamber 7 in a valve box 1 are communicated by a bypass pipe 20, further a flow control valve 22 is provided in said pipe 20. Control pressure oil Q is fed to an oil hydraulic cylinder 13, and a pilot valve 11 is lifted to operate through a valve rod 12, then steam in the balance chamber 7 is released to an outlet chamber 5. If pressure in the chamber 7 is decreased, steam is fed from the steam inlet chamber 3 to the inside of the chamber 7 through drain piping 18 in the upstream side of the valve, bypass pipe 20, flow control valve 22 and through hole 21.
COPYRIGHT: (C)1982,JPO&Japio
JP319581A 1981-01-14 1981-01-14 steam stop valve Expired JPS5834717B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP319581A JPS5834717B2 (en) 1981-01-14 1981-01-14 steam stop valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP319581A JPS5834717B2 (en) 1981-01-14 1981-01-14 steam stop valve

Publications (2)

Publication Number Publication Date
JPS57116986A true JPS57116986A (en) 1982-07-21
JPS5834717B2 JPS5834717B2 (en) 1983-07-28

Family

ID=11550624

Family Applications (1)

Application Number Title Priority Date Filing Date
JP319581A Expired JPS5834717B2 (en) 1981-01-14 1981-01-14 steam stop valve

Country Status (1)

Country Link
JP (1) JPS5834717B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014134135A (en) * 2013-01-10 2014-07-24 Mitsubishi Heavy Ind Ltd Steam stop valve, steam leakage monitoring system and monitoring method of steam stop valve
CN106641378A (en) * 2015-10-29 2017-05-10 江苏中昊船用阀门制造有限公司 Intelligent electric-hydraulic control stop valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0226214U (en) * 1988-08-08 1990-02-21

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014134135A (en) * 2013-01-10 2014-07-24 Mitsubishi Heavy Ind Ltd Steam stop valve, steam leakage monitoring system and monitoring method of steam stop valve
CN106641378A (en) * 2015-10-29 2017-05-10 江苏中昊船用阀门制造有限公司 Intelligent electric-hydraulic control stop valve

Also Published As

Publication number Publication date
JPS5834717B2 (en) 1983-07-28

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