JPS563830A - Gas safety device with oxygen shortage accident preventing function - Google Patents
Gas safety device with oxygen shortage accident preventing functionInfo
- Publication number
- JPS563830A JPS563830A JP7795379A JP7795379A JPS563830A JP S563830 A JPS563830 A JP S563830A JP 7795379 A JP7795379 A JP 7795379A JP 7795379 A JP7795379 A JP 7795379A JP S563830 A JPS563830 A JP S563830A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- detects
- electromagnetic valve
- oxygen shortage
- state detecting
- 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
- 239000007789 gas Substances 0.000 title abstract 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title abstract 3
- 239000001301 oxygen Substances 0.000 title abstract 3
- 229910052760 oxygen Inorganic materials 0.000 title abstract 3
- 238000002485 combustion reaction Methods 0.000 abstract 4
- 238000001514 detection method Methods 0.000 abstract 1
Landscapes
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Regulation And Control Of Combustion (AREA)
- Control Of Combustion (AREA)
Abstract
PURPOSE:To provide a gas safety device wherein a whole house inside of its gas service port in treated as one gas supply system and prevents collectively gas accidents which may happed in the whole gas supply system. CONSTITUTION:If gas use is detected by a gas use detector S1, an electromagnetic valve 3 is opened to supply gas and a current is flowed to ignition electrodes 9 and ignition discharges are caused until a combustion state detecting electrode S2 detects a combustion flame. When the combustion state detecting electrode S2 detects nonburning except in a specified time from the beginning of detection or a gas pressure detector S3 detects a gas pressure drop while gas use is detected by the gas use detector S1, a current to the electromagnetic valve 3 is stopped to stop gas supply, and further, when the combustion state detecting electrode S2 detects an oxygen shortage or the gas pressure detector S3 detects a gas pressure drop larger than a specified value in a specified time after the electromagnetic valve 3 closed, a current flowing circuit to the electromagnetic valve 3 is locked electrically to prevent oxygen shortage accidents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7795379A JPS563830A (en) | 1979-06-20 | 1979-06-20 | Gas safety device with oxygen shortage accident preventing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7795379A JPS563830A (en) | 1979-06-20 | 1979-06-20 | Gas safety device with oxygen shortage accident preventing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS563830A true JPS563830A (en) | 1981-01-16 |
Family
ID=13648365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7795379A Pending JPS563830A (en) | 1979-06-20 | 1979-06-20 | Gas safety device with oxygen shortage accident preventing function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS563830A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5679942A (en) * | 1993-08-27 | 1997-10-21 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Magnetic card reader using two multi channel magnetic heads that can read magnetic track data in two separate and distinct directions |
-
1979
- 1979-06-20 JP JP7795379A patent/JPS563830A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5679942A (en) * | 1993-08-27 | 1997-10-21 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Magnetic card reader using two multi channel magnetic heads that can read magnetic track data in two separate and distinct directions |
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