JPH0451657U - - Google Patents
Info
- Publication number
- JPH0451657U JPH0451657U JP9309390U JP9309390U JPH0451657U JP H0451657 U JPH0451657 U JP H0451657U JP 9309390 U JP9309390 U JP 9309390U JP 9309390 U JP9309390 U JP 9309390U JP H0451657 U JPH0451657 U JP H0451657U
- Authority
- JP
- Japan
- Prior art keywords
- gas
- alarm
- terminals
- gas leak
- circuit
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 8
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Regulation And Control Of Combustion (AREA)
- Emergency Alarm Devices (AREA)
Description
第１図は本考案の一実施例に係わるガス漏れ警
報遮断装置の基本構成を示すブロツク図、第２図
は上記装置に用いたガス遮断器の具体的構成を示
す回路構成図、第３図は上記装置に用いたガス漏
れ警報器の具体的構成を示すブロツク図、第４図
は上記装置の動作を説明するための信号波形図で
ある。
１……ガス漏れ警報器、２……ガス遮断器、３
……ガス遮断弁、２１……遮断弁駆動コイル、２
２……メータパルス接点（第１のスイツチ）、２
３……第１の抵抗体、２４……弁アンサ接点（第
２のスイツチ）、２５……第２の抵抗体、３２…
…ガスセンサ、３４……ガス漏れ検出回路、３５
……判定回路、３６……信号発生回路、４３……
ブザー回路、４４……ランプ回路。
FIG. 1 is a block diagram showing the basic configuration of a gas leak alarm shutoff device according to an embodiment of the present invention, FIG. 2 is a circuit diagram showing the specific configuration of a gas circuit breaker used in the above device, and FIG. 3 4 is a block diagram showing a specific configuration of a gas leak alarm used in the above device, and FIG. 4 is a signal waveform diagram for explaining the operation of the above device. 1... Gas leak alarm, 2... Gas circuit breaker, 3
...Gas cutoff valve, 21...Shutoff valve drive coil, 2
2...meter pulse contact (first switch), 2
3...First resistor, 24...Valve answer contact (second switch), 25...Second resistor, 32...
...Gas sensor, 34...Gas leak detection circuit, 35
...Judgment circuit, 36...Signal generation circuit, 43...
Buzzer circuit, 44...lamp circuit.
Claims (1)
警報器と、このガス漏れ警報器から供給される信
号に応じてガスの供給を遮断するガス遮断器とを
備えたガス漏れ警報遮断装置において、 前記ガス漏れ遮断器は、前記ガス漏れ警報器と
接続される２端子間に接続され、該端子間の電圧
が所定値以上になるとガス遮断弁を閉じる遮断弁
駆動コイルと、ガスが供給状態にあるときオンす
るスイツチと、このスイツチを介して前記２端子
間に接続された抵抗体とからなり、 前記ガス漏れ警報器は、ガスセンサの出力に基
づきガス漏れを検出するガス漏れ検出回路と、前
記ガス遮断器の２端子間の電圧に基づきガス供給
状態を検出するガス供給検出回路と、前記各検出
回路の検出出力に基づき、ガス漏れの有無及びガ
ス供給の有無を判定する判定回路と、この判定回
路の判定結果に応じて警報を発する警報発生回路
と、通常時は前記遮断弁駆動コイルのしきい値よ
りも低い直流電圧を発生し、前記判定回路により
ガス漏れ及びガス供給が共に有りと判定された時
は、前記遮断弁駆動コイルのしきい値よりも高い
直流電圧を発生し、該電圧を前記２端子間に供給
する信号発生回路とからなることを特徴とするガ
ス漏れ警報遮断装置。 (2) ガス漏れを検出して警報を発するガス漏れ
警報器と、このガス漏れ警報器から供給される信
号に応じてガスの供給を遮断するガス警報器とを
備えたガス漏れ警報遮断装置において、 前記ガス遮断器は、前記ガス漏れ警報器と接続
される２端子間に接続され、該端子間の電圧が所
定値以上になるとガス遮断弁を閉じる遮断弁駆動
コイルと、ガスが供給状態にあるときオンする第
１のスイツチと、この第１のスイツチを介して前
記第２端子間に接続された第１の抵抗体と、ガス
遮断弁が閉じられたときオンする第２のスイツチ
と、この第２のスイツチを介して前記２端子間に
接続された第２の抵抗体とからなり、 前記ガス漏れ警報器は、ガスセンサの出力に基
づきガス漏れを検出するガス漏れ検出回路と、前
記ガス遮断器の２端子間の電圧に基づきガス供給
状態を検出するガス供給検出回路と、前記２端子
間の電圧に基づきガス遮断弁の開閉状態を検出す
る遮断弁開閉検出回路と、前記各検出回路の検出
出力に基づき、ガス漏れ、ガス供給の有無及び遮
断弁の開閉状態を判定する判定回路と、この判定
回路の判定結果に応じて警報を発する警報発生回
路と、通常時は前記遮断弁駆動コイルのしきい値
よりも低い直流電圧を発生し、前記判定回路によ
りガス漏れ及びガス供給が共に有りと判定された
時は、前記遮断弁駆動コイルのしきい値よりも高
い直流電圧を発生し、該電圧を前記２端子間に供
給する信号発生回路とからなることを特徴とする
ガス漏れ警報遮断装置。[Scope of claim for utility model registration] (1) A gas leak alarm that detects a gas leak and issues an alarm, and a gas circuit breaker that cuts off the gas supply in response to a signal supplied from the gas leak alarm. In the gas leak alarm cutoff device, the gas leak cutoff is a cutoff valve that is connected between two terminals connected to the gas leakage alarm, and closes the gas cutoff valve when the voltage between the terminals reaches a predetermined value or higher. Consisting of a drive coil, a switch that is turned on when gas is being supplied, and a resistor connected between the two terminals via this switch, the gas leak alarm detects a gas leak based on the output of the gas sensor. A gas leak detection circuit detects the gas supply state based on the voltage between the two terminals of the gas circuit breaker, and a gas supply detection circuit detects the gas supply state based on the voltage between the two terminals of the gas circuit breaker. a determination circuit that determines the presence or absence of the cutoff valve; an alarm generation circuit that issues an alarm according to the determination result of the determination circuit; and a signal generation circuit that generates a DC voltage higher than the threshold value of the cutoff valve drive coil when it is determined that there is both a gas leak and a gas supply, and supplies the voltage between the two terminals. A gas leak alarm cutoff device featuring: (2) In a gas leak alarm shutoff device that includes a gas leak alarm that detects a gas leak and issues an alarm, and a gas alarm that shuts off the supply of gas in response to a signal supplied from the gas leak alarm. , the gas circuit breaker is connected between two terminals connected to the gas leak alarm, and a shutoff valve driving coil that closes the gas shutoff valve when the voltage between the terminals exceeds a predetermined value; a first switch that is turned on at a certain time; a first resistor connected between the second terminals via the first switch; and a second switch that is turned on when the gas cutoff valve is closed; a second resistor connected between the two terminals via the second switch, and the gas leak alarm includes a gas leak detection circuit that detects a gas leak based on the output of the gas sensor; a gas supply detection circuit that detects the gas supply state based on the voltage between two terminals of the circuit breaker; a cutoff valve open/close detection circuit that detects the open/closed state of the gas cutoff valve based on the voltage between the two terminals; and each of the detection circuits. a determination circuit that determines gas leakage, the presence or absence of gas supply, and the open/closed state of the shutoff valve based on the detection output of the circuit; an alarm generation circuit that issues an alarm according to the determination results of this determination circuit; Generates a DC voltage lower than the threshold value of the coil, and when the determination circuit determines that there is both a gas leak and a gas supply, generates a DC voltage higher than the threshold value of the shutoff valve drive coil. , and a signal generating circuit that supplies the voltage between the two terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990093093U JP2545607Y2 (en) | 1990-09-06 | 1990-09-06 | Gas leak alarm shutoff device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990093093U JP2545607Y2 (en) | 1990-09-06 | 1990-09-06 | Gas leak alarm shutoff device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0451657U true JPH0451657U (en) | 1992-04-30 |
| JP2545607Y2 JP2545607Y2 (en) | 1997-08-25 |
Family
ID=31830044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990093093U Expired - Lifetime JP2545607Y2 (en) | 1990-09-06 | 1990-09-06 | Gas leak alarm shutoff device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2545607Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2019188692A1 (en) * | 2018-03-28 | 2021-04-15 | Tdk株式会社 | Gas sensors, gas alarms, gas shutoffs and smart devices |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60131099U (en) * | 1984-02-07 | 1985-09-02 | 横河電機株式会社 | 2 wire transmitter |
| JPH0242184U (en) * | 1988-09-12 | 1990-03-23 |
-
1990
- 1990-09-06 JP JP1990093093U patent/JP2545607Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60131099U (en) * | 1984-02-07 | 1985-09-02 | 横河電機株式会社 | 2 wire transmitter |
| JPH0242184U (en) * | 1988-09-12 | 1990-03-23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2545607Y2 (en) | 1997-08-25 |
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