JPS5646178A - Gate valve operating device for submarine tunnel entrance - Google Patents

Gate valve operating device for submarine tunnel entrance

Info

Publication number
JPS5646178A
JPS5646178A JP12202879A JP12202879A JPS5646178A JP S5646178 A JPS5646178 A JP S5646178A JP 12202879 A JP12202879 A JP 12202879A JP 12202879 A JP12202879 A JP 12202879A JP S5646178 A JPS5646178 A JP S5646178A
Authority
JP
Japan
Prior art keywords
spring
pressure
space
flow line
cover
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
JP12202879A
Other languages
Japanese (ja)
Other versions
JPS5917310B2 (en
Inventor
Takamasa Arikawa
Norimasa Arashima
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP12202879A priority Critical patent/JPS5917310B2/en
Publication of JPS5646178A publication Critical patent/JPS5646178A/en
Publication of JPS5917310B2 publication Critical patent/JPS5917310B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Fluid-Driven Valves (AREA)

Abstract

PURPOSE: To improve the durability of machine parts contained inside by forming a spring holder/cover in a bowl-shape having thick walls, making the spring holder/ cover slidable along a guide provided for the body and filling the interior with a fluid.
CONSTITUTION: Flow line 4 is opened by supplying pressurized liquid to a hydraulic port 9 to move a spring holder/cover 1 against a spring 11 to make a gate 5 advance until the bore 10 of the gate 5 come to align with the flow line 4. In opening or closing the flow line 4, the spring 11 is free from corrosion since the space 12 containing the spring 11 is filled with an anticorrosive oil. The inner pressure of the space 12 can be balanced with the environmental pressure in the deep sea bottom as well as in the shallow sea bottom because the pressure of the fluid filled in the space 12 is controlled to balance with the environmental pressure by a pressure balancer installed at a position 13.
COPYRIGHT: (C)1981,JPO&Japio
JP12202879A 1979-09-25 1979-09-25 Gate valve actuation device for submarine wellhead Expired JPS5917310B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12202879A JPS5917310B2 (en) 1979-09-25 1979-09-25 Gate valve actuation device for submarine wellhead

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12202879A JPS5917310B2 (en) 1979-09-25 1979-09-25 Gate valve actuation device for submarine wellhead

Publications (2)

Publication Number Publication Date
JPS5646178A true JPS5646178A (en) 1981-04-27
JPS5917310B2 JPS5917310B2 (en) 1984-04-20

Family

ID=14825798

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12202879A Expired JPS5917310B2 (en) 1979-09-25 1979-09-25 Gate valve actuation device for submarine wellhead

Country Status (1)

Country Link
JP (1) JPS5917310B2 (en)

Also Published As

Publication number Publication date
JPS5917310B2 (en) 1984-04-20

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