JPS6169648U - - Google Patents
Info
- Publication number
- JPS6169648U JPS6169648U JP15538384U JP15538384U JPS6169648U JP S6169648 U JPS6169648 U JP S6169648U JP 15538384 U JP15538384 U JP 15538384U JP 15538384 U JP15538384 U JP 15538384U JP S6169648 U JPS6169648 U JP S6169648U
- Authority
- JP
- Japan
- Prior art keywords
- flame
- combustion
- flame current
- output
- detection 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
- 238000002485 combustion reaction Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims 5
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Control Of Combustion (AREA)
- Feeding And Controlling Fuel (AREA)
Description
第１図はこの考案の実施例を示す回路図、第２
図は従来例を示す回路図である。
５１…燃焼部、５２…フレームロツド、５３…
交流電源、５４，５５，５７，５８…抵抗、６３
…抵抗分圧回路、６４…第１のコンパレータ、６
５…第２のコンパレータ、６６…第３のコンパレ
ータ、６７…第４のコンパレータ、６９…第１の
時定数回路、７２…第２の時定数回路、７４，７
６…ＮＰＮ形のトランジスタ、８３，８４…ダイ
オード。
Figure 1 is a circuit diagram showing an embodiment of this invention, Figure 2 is a circuit diagram showing an embodiment of this invention.
The figure is a circuit diagram showing a conventional example. 51... Combustion part, 52... Flame rod, 53...
AC power supply, 54, 55, 57, 58...resistance, 63
...Resistive voltage divider circuit, 64...First comparator, 6
5... Second comparator, 66... Third comparator, 67... Fourth comparator, 69... First time constant circuit, 72... Second time constant circuit, 74,7
6...NPN transistor, 83, 84...diode.
Claims (1)
状態に応じて電流量が変化する炎電流を流す炎電
流通電回路と、この炎電流通電回路に流れる炎電
流を検知し、その炎電流レベルが予め設定した第
１の規定レベル以下に低下すると燃焼停止用出力
を発生する第１の炎電流検知回路と、前記炎電流
通電回路に流れる炎電流を検知し、その炎電流レ
ベルが予め設定した前記第１の規定レベルよりも
高い第２の規定レベル以下に低下すると警報用出
力を発生する第２の炎電流検知回路と、前記燃焼
部の点火動作に応動して予め設定した一定時間Ｔ
１、前記第１の炎電流検知回路からの燃焼停止用
出力の発生を禁止制御する第１の出力禁止制御回
路と、前記燃焼部の点火動作に応動して予め設定
した前記一定時間Ｔ１よりも長い一定時間Ｔ２、
前記第２の炎電流検知回路からの警報用出力の発
生を禁止制御する第２の出力禁止制御回路とを具
備してなることを特徴とする燃焼炎検知装置。 There is a flame current energization circuit that detects the combustion flame in the combustion section and sends a flame current whose amount changes depending on the state of the combustion flame, and a flame current that flows through this flame current energization circuit and detects the flame current level. a first flame current detection circuit that generates an output for combustion termination when the voltage drops below a preset first specified level; a second flame current detection circuit that generates an alarm output when the current falls below a second specified level that is higher than the first specified level; and a preset fixed time T in response to the ignition operation of the combustion section.
1. A first output prohibition control circuit that prohibits the generation of the combustion stop output from the first flame current detection circuit, and a predetermined time period T1 that is preset in response to the ignition operation of the combustion section. is also a long fixed time T 2 ,
A combustion flame detection device comprising: a second output prohibition control circuit that prohibits generation of an alarm output from the second flame current detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15538384U JPH0212457Y2 (en) | 1984-10-15 | 1984-10-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15538384U JPH0212457Y2 (en) | 1984-10-15 | 1984-10-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6169648U true JPS6169648U (en) | 1986-05-13 |
| JPH0212457Y2 JPH0212457Y2 (en) | 1990-04-09 |
Family
ID=30713392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15538384U Expired JPH0212457Y2 (en) | 1984-10-15 | 1984-10-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0212457Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63279023A (en) * | 1987-05-11 | 1988-11-16 | Miura Co Ltd | Ignition detecting method for burner |
-
1984
- 1984-10-15 JP JP15538384U patent/JPH0212457Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63279023A (en) * | 1987-05-11 | 1988-11-16 | Miura Co Ltd | Ignition detecting method for burner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0212457Y2 (en) | 1990-04-09 |
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