JPS57154567A - Operation system of emergency stop valve - Google Patents

Operation system of emergency stop valve

Info

Publication number
JPS57154567A
JPS57154567A JP3516781A JP3516781A JPS57154567A JP S57154567 A JPS57154567 A JP S57154567A JP 3516781 A JP3516781 A JP 3516781A JP 3516781 A JP3516781 A JP 3516781A JP S57154567 A JPS57154567 A JP S57154567A
Authority
JP
Japan
Prior art keywords
valve
vibration
supplied
over
operative
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
JP3516781A
Other languages
Japanese (ja)
Inventor
Yasusada Sakai
Keimei Hara
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.)
BOSAI SANGYO KK
BOUSAI SANGYO KK
Mitsubishi Corp
Original Assignee
BOSAI SANGYO KK
BOUSAI SANGYO KK
Mitsubishi Corp
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 BOSAI SANGYO KK, BOUSAI SANGYO KK, Mitsubishi Corp filed Critical BOSAI SANGYO KK
Priority to JP3516781A priority Critical patent/JPS57154567A/en
Publication of JPS57154567A publication Critical patent/JPS57154567A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)

Abstract

PURPOSE:To facilitate the process of scttaching a safety device for earthquake to both newly provided or already installed facilities, by enabling a large emergency stop valve to operate owing to change-over operation of vibration operative change-over valve during an earthquake. CONSTITUTION:Compressed air is supplied from a compressor 10 to an air tank 8 through a check valve constantly until the inner pressure of the tank 8 rises to the specified level and then supplied to a ball valve 3 from the air tank 8 through a solenoid valve 11 and a vibration operative change-over valve 12. When a vibration stronger than the specified magnitude occurs during the ball valve 3 is at its open condition after compressed air is supplied to an operative cylinder 3a, the vibration operative change-over valve 12 is changed over to the position as shown by dotted lines and compressed air supplied in the right side of a piston 14 is discharged. Consequently, the ball valve 16 rotates due to a return spring 13 and a ball valve 3 of an emergency stop valve can be automatically closed.
JP3516781A 1981-03-13 1981-03-13 Operation system of emergency stop valve Pending JPS57154567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3516781A JPS57154567A (en) 1981-03-13 1981-03-13 Operation system of emergency stop valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3516781A JPS57154567A (en) 1981-03-13 1981-03-13 Operation system of emergency stop valve

Publications (1)

Publication Number Publication Date
JPS57154567A true JPS57154567A (en) 1982-09-24

Family

ID=12434305

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3516781A Pending JPS57154567A (en) 1981-03-13 1981-03-13 Operation system of emergency stop valve

Country Status (1)

Country Link
JP (1) JPS57154567A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4920999A (en) * 1988-10-07 1990-05-01 Andrene Associates Air actuated valve system with seismic controller
US5271425A (en) * 1993-05-20 1993-12-21 Swartzlander Kenneth R Valve closing apparatus responsive to movement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4920999A (en) * 1988-10-07 1990-05-01 Andrene Associates Air actuated valve system with seismic controller
US5271425A (en) * 1993-05-20 1993-12-21 Swartzlander Kenneth R Valve closing apparatus responsive to movement

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