JPS57148123A - Automatic gas shut-off device with reset safety mechanism - Google Patents
Automatic gas shut-off device with reset safety mechanismInfo
- Publication number
- JPS57148123A JPS57148123A JP56033459A JP3345981A JPS57148123A JP S57148123 A JPS57148123 A JP S57148123A JP 56033459 A JP56033459 A JP 56033459A JP 3345981 A JP3345981 A JP 3345981A JP S57148123 A JPS57148123 A JP S57148123A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- solenoid valve
- leakage
- shut
- resetting
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2231/00—Fail safe
- F23N2231/14—Fail safe for earthquakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
- F23N2235/14—Fuel valves electromagnetically operated
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Combustion (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
PURPOSE:To improve the safety of the device in an emergency by a constitution wherein a gas passage is shut-off in an instant when a quake sensitive sensor is put in operation and as well as a very small amount of leakage sensing gas is flowed and, if the leakage of the gas is sensed, the resetting of the device is made impossible. CONSTITUTION:The device consists of a solenoid valve A with locking mechanism arranged in a gas supply pipe, a solenoid valve B which opens at energization arranged in series with a flow rate regulator C, which is equipped with a diaphragm and microswitches, in a piping by-passing the solenoid valve A, a gas meter D equipped with a rotation detector and a control panel E interlinkedly controlling the respective above-mentioned apparatuses. In addition, when the quake sensitive sensor or the gas sensor (neigher are shown) actuates, the solenoid valve A is rendered to be shut-off in an instant through a relay circuit. Furthermore, even if the resetting operation is tried under the condition that the leakage sensing gas is leaking at somewhere, the device is so constituted as to make the resetting operation impossible by opening a switch 3 with the lowering of the diaphragm of the regulator C due to the leakage of the gas.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56033459A JPS57148123A (en) | 1981-03-09 | 1981-03-09 | Automatic gas shut-off device with reset safety mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56033459A JPS57148123A (en) | 1981-03-09 | 1981-03-09 | Automatic gas shut-off device with reset safety mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57148123A true JPS57148123A (en) | 1982-09-13 |
Family
ID=12387117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56033459A Pending JPS57148123A (en) | 1981-03-09 | 1981-03-09 | Automatic gas shut-off device with reset safety mechanism |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57148123A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01263417A (en) * | 1988-04-13 | 1989-10-19 | Norin Kogyosha:Goushi | Gas safety device |
US5260763A (en) * | 1989-02-17 | 1993-11-09 | Masayo Yamashita | Instrument for observing jewels' brilliance as diamond, and method of taking photographs with said instrument |
-
1981
- 1981-03-09 JP JP56033459A patent/JPS57148123A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01263417A (en) * | 1988-04-13 | 1989-10-19 | Norin Kogyosha:Goushi | Gas safety device |
JPH0512618B2 (en) * | 1988-04-13 | 1993-02-18 | Norin Kogyosha Goshi | |
US5260763A (en) * | 1989-02-17 | 1993-11-09 | Masayo Yamashita | Instrument for observing jewels' brilliance as diamond, and method of taking photographs with said instrument |
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