JPS57129973A - System to shut off gas supply - Google Patents

System to shut off gas supply

Info

Publication number
JPS57129973A
JPS57129973A JP1477581A JP1477581A JPS57129973A JP S57129973 A JPS57129973 A JP S57129973A JP 1477581 A JP1477581 A JP 1477581A JP 1477581 A JP1477581 A JP 1477581A JP S57129973 A JPS57129973 A JP S57129973A
Authority
JP
Japan
Prior art keywords
gas
sensor
shut
gas leak
control
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
JP1477581A
Other languages
Japanese (ja)
Inventor
Junichi Kondo
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP1477581A priority Critical patent/JPS57129973A/en
Publication of JPS57129973A publication Critical patent/JPS57129973A/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

Abstract

PURPOSE:To shut off immediately the gas supply in case of emegency by connecting a control device and a gas leak sensor via existing electric power line, by which a prescribed signal is sent from the sensor to the control device. CONSTITUTION:This system has a gas shut-off valve 1 installed on gas piping 9 in the neighborhood of a gas inlet and also a gas leak sensor 3 and a vibration sensor 4. The gas leak sensor 3 is connected to the control 2 via electric power line 5 so that the prescribed signal can be transmitted and received between the control 2 and gas leak sensor 3 through the electric power line 5. Also when either of the vibration sensor 4 or the gas leak sensor 3 is actuated, the control 2 functions to close the gas shut-off valve 1 and at the same time issues a warning. When either an earthquake or a gas leak has occurred, the control 2 judges from the action of the vibration sensor 4 or the gas leak sensor 3 that an abnormal condition has occurred and immediately acts to close the gas shut- off valve 1.
JP1477581A 1981-02-03 1981-02-03 System to shut off gas supply Pending JPS57129973A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1477581A JPS57129973A (en) 1981-02-03 1981-02-03 System to shut off gas supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1477581A JPS57129973A (en) 1981-02-03 1981-02-03 System to shut off gas supply

Publications (1)

Publication Number Publication Date
JPS57129973A true JPS57129973A (en) 1982-08-12

Family

ID=11870421

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1477581A Pending JPS57129973A (en) 1981-02-03 1981-02-03 System to shut off gas supply

Country Status (1)

Country Link
JP (1) JPS57129973A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4787410A (en) * 1984-10-11 1988-11-29 Matsushita Electric Industrial Co., Ltd. Gas shut-off system
NL1000099C2 (en) * 1995-04-10 1996-10-11 Johannes Abraham Ehrensperger Safety system for domestic and industrial premises
ITRM20100417A1 (en) * 2010-07-27 2012-01-28 Giuseppe Farina ANTIPLOSIVE AND POISONING SAFETY DEVICE FROM GAS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4787410A (en) * 1984-10-11 1988-11-29 Matsushita Electric Industrial Co., Ltd. Gas shut-off system
NL1000099C2 (en) * 1995-04-10 1996-10-11 Johannes Abraham Ehrensperger Safety system for domestic and industrial premises
ITRM20100417A1 (en) * 2010-07-27 2012-01-28 Giuseppe Farina ANTIPLOSIVE AND POISONING SAFETY DEVICE FROM GAS

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