JPS6146728B2 - - Google Patents
Info
- Publication number
- JPS6146728B2 JPS6146728B2 JP55095179A JP9517980A JPS6146728B2 JP S6146728 B2 JPS6146728 B2 JP S6146728B2 JP 55095179 A JP55095179 A JP 55095179A JP 9517980 A JP9517980 A JP 9517980A JP S6146728 B2 JPS6146728 B2 JP S6146728B2
- Authority
- JP
- Japan
- Prior art keywords
- solenoid valve
- mat
- preheating
- catalyst
- thermocouple
- 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.)
- Expired
Links
- 239000003054 catalyst Substances 0.000 claims description 14
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
- F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
- Control Of Combustion (AREA)
Description
【発明の詳細な説明】
本発明はたとえばガスストーブ等に使用する燃
焼安全装置に関するものであり、白金やパラジウ
ム等の貴金属触媒を耐熱性マツトに担持させ、ガ
スをこの耐熱性マツト内で燃焼させる装置におい
て、触媒を活性化させるための予熱手段を設け、
時定数回路で一定時間のみ予熱させ点火を確実に
しかつ安全に燃焼させる装置を提供するものであ
る。[Detailed Description of the Invention] The present invention relates to a combustion safety device used, for example, in gas stoves, etc., in which a noble metal catalyst such as platinum or palladium is supported on a heat-resistant mat, and gas is combusted within the heat-resistant mat. In the apparatus, a preheating means for activating the catalyst is provided,
The present invention provides a device that uses a time constant circuit to preheat for a certain period of time to ensure ignition and ensure safe combustion.
以下、本発明の一実施例を図面を用いて説明す
る。第１図において１はガス入口であり、ガスは
操作つまみ２により開閉される電磁弁３、ガバナ
４、ガス流量を規制するオリフイス５を通り、触
媒マツト６に導びかれる。この触媒マツト６は白
金やパラジウム等の貴金属触媒を耐熱性マツトに
担持させたものであり、ガスを供給して点火する
とマツド内で燃焼するものである。７は熱電対で
あり、その出力で電磁弁３を制御する。上記カバ
ナ４を通過したガスは電磁弁９を介して予熱バー
ナ８へ導びかれる。この予熱バーナ８の炎は上記
触媒マツト６をあたためることができる。 An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a gas inlet, and gas is guided to a catalyst mat 6 through a solenoid valve 3 that is opened and closed by an operating knob 2, a governor 4, and an orifice 5 that regulates the gas flow rate. The catalyst mat 6 is a heat-resistant mat supporting a precious metal catalyst such as platinum or palladium, and when gas is supplied and ignited, the mat combusts within the mat. 7 is a thermocouple, and its output controls the solenoid valve 3. The gas that has passed through the cabana 4 is guided to the preheating burner 8 via the electromagnetic valve 9. The flame of this preheating burner 8 can warm the catalyst mat 6.
次に動作を説明する。操作つまみ２を操作する
ことにより、スイツチ１０が切り換わり、第２図
に示すように接点S2に接し、電源１１によりコン
デンサ１２に充電されていた電荷が電磁弁３，９
に流れて、両電磁弁３，９が開成する。電磁弁
３，９が開成するとガスは流れて触媒マツト６と
予熱バーナ８とに達し燃焼する。予熱バーナ８へ
のガス流を制御する電磁弁９は抵抗１３とコンデ
ンサ１２とで決定される時定数の長さだけ開成状
態が保持されるが時間が経過すると閉成する。こ
の時定数の長さは触媒が加熱されて十分活性する
までの長さをあらかじめ測定しておき、それによ
り抵抗１３とコンデンサ１２の値を決定すればよ
い。コンデンサ１２の放電後は電磁弁９は閉じ、
予熱バーナ８は消火する。 Next, the operation will be explained. By operating the operating knob 2, the switch 10 is switched and contacts the contact S2 as shown in FIG.
Then, both electromagnetic valves 3 and 9 are opened. When the electromagnetic valves 3 and 9 are opened, the gas flows and reaches the catalyst mat 6 and preheating burner 8, where it is combusted. The solenoid valve 9 controlling the gas flow to the preheating burner 8 is held open for a time constant determined by a resistor 13 and a capacitor 12, but then closes. The length of this time constant may be determined by measuring in advance the length of time until the catalyst is heated to become sufficiently active, and the values of the resistor 13 and capacitor 12 are determined based on this. After the capacitor 12 is discharged, the solenoid valve 9 closes.
The preheating burner 8 is extinguished.
一方、電磁弁３はコンデンサ１２の放電後も開
成状態を保つ。それは、予熱バーナ８が一定時間
燃焼することにより触媒が十分活性化し、触媒バ
ーナ６が高温になるので、これを熱電対７が検知
し、以後この熱電対７の出力は燃焼状態が続く間
連続して出るので電磁弁３の開成状態は保持され
るのである。第３図に定常動作状態を示す。 On the other hand, the solenoid valve 3 remains open even after the capacitor 12 is discharged. The reason is that when the preheating burner 8 burns for a certain period of time, the catalyst becomes sufficiently activated and the catalytic burner 6 becomes high temperature, which is detected by the thermocouple 7. From then on, the output of this thermocouple 7 is continuous as long as the combustion state continues. Therefore, the open state of the solenoid valve 3 is maintained. FIG. 3 shows the steady state of operation.
なおスイツチ１０は定常動作時は接点S2に接
し、操作つまみ２を消火位置にすると接点S1に接
するものであり、定常動作時は、抵抗１３、コン
デンサ１２が熱電対７に接続されているもののこ
れらは抵抗分が大きく無視できるものであり、電
磁弁３のみ開成される。 The switch 10 is in contact with the contact S 2 during normal operation, and is in contact with the contact S 1 when the operating knob 2 is set to the extinguishing position, and the resistor 13 and capacitor 12 are connected to the thermocouple 7 during normal operation. However, these resistances are large and can be ignored, and only the solenoid valve 3 is opened.
以上のように本発明によれば予熱が必要な触媒
マツト燃焼手段において、予熱手段を一定時間だ
け点火しておく装置を簡単な構成で提供できるも
のであり、安全で確実な燃焼状態が得られる。 As described above, according to the present invention, in a catalytic pine combustion means that requires preheating, a device that ignites the preheating means for a certain period of time can be provided with a simple configuration, and a safe and reliable combustion state can be obtained. .
また、予熱バーナにガスを送る第２電磁弁を点
火時に一定時間のみ開く時定数回路は、触媒マツ
トにガスを送る第１電磁弁とも並列接続している
ので、第２電磁弁だけでなく第１電磁弁もあわせ
て開成し、予熱バーナの点火および触媒マツトの
予熱操作を確実にできるとともに予熱バーナの時
定数回路を有効に活用して構造を簡単にでき、か
つ触媒マツトの燃焼熱をうけて第１電磁弁に熱起
電力を送る熱電対に対し、電気的に影響を与える
ことなくできるので、触媒燃焼に支障をきたすこ
となくできる。 In addition, the time constant circuit that opens the second solenoid valve that sends gas to the preheating burner only for a certain period of time when igniting is connected in parallel with the first solenoid valve that sends gas to the catalyst mat. 1. A solenoid valve was also opened to ensure the ignition of the preheating burner and the preheating operation of the catalytic mat, and the structure was simplified by effectively utilizing the time constant circuit of the preheating burner. This can be done without electrically affecting the thermocouple that sends thermoelectromotive force to the first electromagnetic valve, so it can be done without interfering with catalytic combustion.
第１図は本発明の一実施例における燃焼安全装
置の回路図、第２図、第３図は同装置の動作状態
を示す回路図である。
３，９……電磁弁、６……触媒マツト、７……
熱電対、８……予熱バーナ、１０……スイツチ、
１１……電源、１２……コンデンサ、１３……抵
抗。
FIG. 1 is a circuit diagram of a combustion safety device according to an embodiment of the present invention, and FIGS. 2 and 3 are circuit diagrams showing the operating state of the device. 3, 9... Solenoid valve, 6... Catalyst mat, 7...
Thermocouple, 8... Preheating burner, 10... Switch,
11...power supply, 12...capacitor, 13...resistance.
Claims (1)
を介してガスを供給する手段と、上記触媒マツト
を予熱する予熱バーナと、上記予熱バーナへ第２
の電磁弁を介してガスを供給する手段と、上記触
媒マツトの熱を検知し上記第１の電磁弁の開成状
態を保持する熱電対と、上記第２の電磁弁と直列
接続し、かつ第１の電磁弁とは並列接続し、点火
時に一定時間のみ上記第２の電磁弁および第１の
電磁弁を開く時定数回路とを備えた燃焼安全装
置。1 A contact mat, means for supplying gas to the catalyst mat via a first solenoid valve, a preheating burner for preheating the catalyst mat, and a second supply to the preheating burner.
means for supplying gas through the electromagnetic valve; a thermocouple for detecting the heat of the catalyst mat and maintaining the open state of the first electromagnetic valve; and a thermocouple connected in series with the second electromagnetic valve; A combustion safety device comprising: a time constant circuit that is connected in parallel with the first solenoid valve and opens the second solenoid valve and the first solenoid valve only for a certain period of time during ignition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9517980A JPS5721718A (en) | 1980-07-11 | 1980-07-11 | Combustion safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9517980A JPS5721718A (en) | 1980-07-11 | 1980-07-11 | Combustion safety device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5721718A JPS5721718A (en) | 1982-02-04 |
| JPS6146728B2 true JPS6146728B2 (en) | 1986-10-15 |
Family
ID=14130515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9517980A Granted JPS5721718A (en) | 1980-07-11 | 1980-07-11 | Combustion safety device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5721718A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6148258U (en) * | 1984-08-30 | 1986-04-01 | ||
| JPH07117822B2 (en) * | 1987-09-08 | 1995-12-18 | シャープ株式会社 | Display device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS458304Y1 (en) * | 1966-11-02 | 1970-04-20 | ||
| JPS54153344A (en) * | 1978-05-25 | 1979-12-03 | Matsushita Electric Ind Co Ltd | Automatic safery device for gas equipment |
-
1980
- 1980-07-11 JP JP9517980A patent/JPS5721718A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS458304Y1 (en) * | 1966-11-02 | 1970-04-20 | ||
| JPS54153344A (en) * | 1978-05-25 | 1979-12-03 | Matsushita Electric Ind Co Ltd | Automatic safery device for gas equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5721718A (en) | 1982-02-04 |
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