JPS6139328Y2 - - Google Patents
Info
- Publication number
- JPS6139328Y2 JPS6139328Y2 JP1980147865U JP14786580U JPS6139328Y2 JP S6139328 Y2 JPS6139328 Y2 JP S6139328Y2 JP 1980147865 U JP1980147865 U JP 1980147865U JP 14786580 U JP14786580 U JP 14786580U JP S6139328 Y2 JPS6139328 Y2 JP S6139328Y2
- Authority
- JP
- Japan
- Prior art keywords
- combustion
- hole
- heat
- detection element
- metal tube
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 20
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 229910002076 stabilized zirconia Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 238000007740 vapor deposition Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 10
- 230000008033 biological extinction Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
- Regulation And Control Of Combustion (AREA)
Description
【考案の詳細な説明】
本考案はガス燃焼機器等の燃焼安定化装置に関
するもので、その目的とするところはガス燃焼機
器等の不完全燃焼および炎の消滅に対処するため
の装置を安価かつ容易に提供することである。[Detailed description of the invention] This invention relates to a combustion stabilization device for gas combustion equipment, etc., and its purpose is to provide an inexpensive and inexpensive device for dealing with incomplete combustion and flame extinction in gas combustion equipment, etc. It is easy to provide.
以下、本考案の一実施例として示した図面に従
つてその構成を説明する。 The configuration of the present invention will be explained below with reference to the drawings shown as an embodiment of the present invention.
第１図は斜視図、第２図は断面図、第３図は検
知素子の上面図である。 FIG. 1 is a perspective view, FIG. 2 is a sectional view, and FIG. 3 is a top view of the sensing element.
平板状の安定化ジルコニア１の対向する両面に
は焼付けあるいは蒸着等の手段によつて白金電極
７が図のように形成されて検知素子を構成し、そ
の検知素子の両電極７にリード線６を半田付け８
したのち、燃焼排気ガス導入用の穴３と大気導入
用の穴４を有するステンレス等の耐熱金属管２に
前記検知素子の電極７を形成していない側面と前
記耐熱金属管２との間にわずかに間隙をもたせて
挿入し、リード線接続側にて、例えばエポキシ系
の充填接着剤５にて固着したものである。 Platinum electrodes 7 are formed on opposing surfaces of the stabilized zirconia plate 1 by baking or vapor deposition as shown in the figure to constitute a sensing element, and lead wires 6 are connected to both electrodes 7 of the sensing element. Soldering 8
After that, a heat-resistant metal tube 2 made of stainless steel or the like having a hole 3 for introducing combustion exhaust gas and a hole 4 for introducing atmospheric air is provided between the side surface on which the electrode 7 of the detection element is not formed and the heat-resistant metal tube 2. It is inserted with a slight gap and fixed on the lead wire connection side with, for example, an epoxy filling adhesive 5.
本装置はガス燃焼機器等の燃焼炎近傍に、大気
導入用の穴４より先端（図では左側）の部分を設
置し、該穴４より他端の部分は通常の大気中にて
使用するものである。 This device is installed near the combustion flame of gas combustion equipment, etc., with the part at the tip (on the left side in the figure) of the hole 4 for introducing the atmosphere, and the part at the other end from the hole 4 is used in normal atmosphere. It is.
そして、ガス燃焼機器等が正常に燃焼している
時は完全燃焼状態であり、センサ電極間には起電
力は発生せず、かつ燃焼炎からの熱により本装置
が加熱（通常850℃）されているので、本装置の
内部抵抗は小さい（約100Ω）。 When gas combustion equipment is burning normally, it is in a complete combustion state, no electromotive force is generated between the sensor electrodes, and the device is heated (usually 850°C) by the heat from the combustion flame. Therefore, the internal resistance of this device is small (approximately 100Ω).
一方、ガス燃焼機器等が不完全燃焼をすると、
燃焼炎中に多量の未然ガス（例えばCO）が発生
し、本装置の燃焼排気ガス導入用の穴３を通じて
検知素子の片側電極近傍に充満する。その結果、
他方の電極近傍は大気導入用の穴４から自然に流
入して来る大気雰囲気下にあるので、両電極近傍
の酸素分圧比が激増して約0.8Vの起電力を発生
し、不完全燃焼を検知することができる。 On the other hand, if gas combustion equipment etc. causes incomplete combustion,
A large amount of gas (for example, CO) is generated in the combustion flame and fills the vicinity of one electrode of the detection element through the combustion exhaust gas introduction hole 3 of this device. the result,
Since the area near the other electrode is in the atmosphere that naturally flows in through the air introduction hole 4, the oxygen partial pressure ratio near both electrodes increases dramatically, generating an electromotive force of approximately 0.8V, which prevents incomplete combustion. Can be detected.
また、ガス燃焼機器等が失火した場合は、炎の
消滅に伴なつて本装置が冷却されるため、内部抵
抗が激増し、炎の消滅を検知することができる。 Further, when a gas combustion device or the like misfires, the device is cooled as the flame disappears, so the internal resistance increases dramatically, making it possible to detect the flame extinction.
次に、本考案装置の効果について説明する。 Next, the effects of the device of the present invention will be explained.
(1) 平板型であるため電極の形成にスクリーン印
刷を用いることができ、自由な形状にかつ自由
な膜厚に形成できるので、高価な白金の使用量
を極力抑えることが可能である。(1) Since it is a flat plate type, screen printing can be used to form the electrodes, and since it can be formed into any shape and thickness, it is possible to minimize the amount of expensive platinum used.
(2) ステンレス等の耐熱金属管で検知部が保護さ
れているので機械的強度が飛躍的に向上する。(2) Mechanical strength is dramatically improved because the detection part is protected by a heat-resistant metal tube such as stainless steel.
(3) 耐熱金属管と検知素子の電極を形成していな
い側面とは、わずかな間隙をもたせて位置させ
てあり、両者の固着は十分に温度の低い部分に
て接着してあるので、両者の熱膨張の差異にも
とずく応力を吸収できる。(3) The heat-resistant metal tube and the side surface of the sensing element on which the electrodes are not formed are positioned with a slight gap, and the two are bonded together at a sufficiently low temperature area, so that both can absorb stress based on differences in thermal expansion.
第１図は本考案装置の一実施例を示す斜視図、
第２図は同断面図、第３図は同装置を構成する検
知素子の上面図である。
１……平板状の安定化ジルコニア、２……耐熱
金属管、３……燃焼排気ガス導入用の穴、４……
大気導入用の穴、７……白金電極。
FIG. 1 is a perspective view showing an embodiment of the device of the present invention;
FIG. 2 is a sectional view of the same, and FIG. 3 is a top view of a sensing element constituting the device. 1... Flat stabilized zirconia, 2... Heat-resistant metal tube, 3... Hole for introducing combustion exhaust gas, 4...
Hole for introducing air, 7...Platinum electrode.
Claims (1)
焼付けあるいは蒸着等の手段を用いて白金電極を
形成して検知素子を構成し、この検知素子を燃焼
排気ガス導入用の穴と大気導入用の穴とを有する
ステンレス等の耐熱金属管に、前記検知素子の電
極を形成していない側面と前記耐熱金属管との間
にわずかな間隙をもたせて挿入して成ることを特
徴とするガス燃焼機器等の燃焼安定化装置。 On both opposing sides of the flat stabilized zirconia,
A combustion stabilization device for gas combustion appliances, etc., characterized in that a detection element is formed by forming a platinum electrode by means of baking or vapor deposition, and this detection element is inserted into a heat-resistant metal tube of stainless steel or the like having a hole for introducing combustion exhaust gas and a hole for introducing air, with a small gap between the side of the detection element on which the electrodes are not formed and the heat-resistant metal tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980147865U JPS6139328Y2 (en) | 1980-10-15 | 1980-10-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980147865U JPS6139328Y2 (en) | 1980-10-15 | 1980-10-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5770158U JPS5770158U (en) | 1982-04-27 |
| JPS6139328Y2 true JPS6139328Y2 (en) | 1986-11-11 |
Family
ID=29507347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980147865U Expired JPS6139328Y2 (en) | 1980-10-15 | 1980-10-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6139328Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54113489U (en) * | 1978-01-21 | 1979-08-09 |
-
1980
- 1980-10-15 JP JP1980147865U patent/JPS6139328Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5770158U (en) | 1982-04-27 |
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