JPS6056974B2 - Combustion safety device - Google Patents
Combustion safety deviceInfo
- Publication number
- JPS6056974B2 JPS6056974B2 JP503079A JP503079A JPS6056974B2 JP S6056974 B2 JPS6056974 B2 JP S6056974B2 JP 503079 A JP503079 A JP 503079A JP 503079 A JP503079 A JP 503079A JP S6056974 B2 JPS6056974 B2 JP S6056974B2
- Authority
- JP
- Japan
- Prior art keywords
- combustion
- flame
- burner
- sensor
- electromotive force
- 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 title claims description 91
- 239000001301 oxygen Substances 0.000 claims description 26
- 229910052760 oxygen Inorganic materials 0.000 claims description 26
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 22
- 239000007789 gas Substances 0.000 claims description 19
- 239000007784 solid electrolyte Substances 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 4
- 230000007423 decrease Effects 0.000 description 7
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid 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
- F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
- F23N5/006—Systems for controlling combustion using detectors sensitive to combustion gas properties the detector being sensitive to oxygen
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Description
【発明の詳細な説明】
本発明は、酸素イオン伝導性の高温固体電解質を用いた
酸素濃淡電池からなる燃焼センサーを備え、この燃焼セ
ンサーでもつて不完全燃焼・燃焼立消え等の異常状態を
検出し、その異常時には電磁安全弁を閉成して燃料供給
を停止し、安全を図る燃焼安全装置に関するものである
。DETAILED DESCRIPTION OF THE INVENTION The present invention is equipped with a combustion sensor consisting of an oxygen concentration battery using an oxygen ion conductive high temperature solid electrolyte, and this combustion sensor can also detect abnormal conditions such as incomplete combustion and combustion extinction. This relates to a combustion safety device that closes an electromagnetic safety valve to stop fuel supply in the event of an abnormality to ensure safety.
酸素濃淡電池からなる燃焼センサーは、一般的には第１
図、第２図に示す如く酸化ジルコニア等の酸素イオン伝
導性の高温固体電解質を円筒状に成型焼成した円筒状固
体解質体２の内外周面に、通気性を有するポーラスな電
極面３、４をそれぞれ付着形成した構成であり、燃焼炎
の熱を与えて高温活性化した状態において一方の電極面
に接する雰囲気と他方の電極面に接する雰囲気とに酸素
濃度差が存在すると起電力を生する。A combustion sensor consisting of an oxygen concentration cell is generally
As shown in FIG. 2, a porous electrode surface 3 having air permeability is provided on the inner and outer circumferential surfaces of a cylindrical solid disintegration body 2 formed by molding and firing an oxygen ion conductive high-temperature solid electrolyte such as zirconia oxide into a cylindrical shape, as shown in FIG. 4 is attached to each other, and when activated at high temperature by applying the heat of combustion flame, if there is a difference in oxygen concentration between the atmosphere in contact with one electrode surface and the atmosphere in contact with the other electrode surface, an electromotive force is generated. do.
そこで従来は、第１図、第２図に示す如く燃焼センサー
１の一方の電極面４に燃焼炎が接触しないようにして加
熱するとともに燃焼排ガスＰ２を接触させて通し、他方
の電極面３に室内空気などの燃焼前の空気Ｐ、が接触す
るように通していた。Conventionally, as shown in FIGS. 1 and 2, one electrode surface 4 of the combustion sensor 1 is heated so that the combustion flame does not come into contact with it, and the combustion exhaust gas P2 is passed through contact with the other electrode surface 3. Pre-combustion air P, such as indoor air, was passed through so as to come into contact with it.
この場合、正常燃焼時には燃焼排ガスＰ２中に相対的に
かなりの酸素が残つており、両電極面における酸素濃度
差が小さいので起電力も数＋ｍＶと小さいが、室内空気
の酸素濃度低下などによつて不完全燃焼が生じると、燃
焼排ガスＰｏ中の酸素がなくなり、上記酸素濃度差が大
きくなるので起電力も増大する。この様子を第３図に示
す。そこでバーナヘのガス路に設けた電磁安全弁にリレ
ー接点を介して電池等の電源を接続し、正常燃焼時は電
源からリレー接点を介して電磁安全弁に通電し励磁”し
て電磁安全弁の開成を保持しておき、不完全燃焼となり
燃焼センサーの起電力が増大すると、その起電力でリレ
ーを励磁してリレー接点をオフにし、それによつて電磁
安全弁が閉成して安全を図れるようにしていた。しかし
、この従来の方式は・燃焼中電磁安全弁の開成を保持す
るため比較的大容量の電源を必要とし、さらにリレー等
も必要とすることから、コスト高になる欠点があつた。
また、バーナも全一次燃焼用バーナを必要とし、湯沸点
などに使われている、いわゆるブンゼンバーナの場合、
空燃比がｌより小さいため、正常状態で起電力が出てし
まい電磁安全弁が開成されないという欠点を有していた
。そこで本発明は、燃焼センサーの一方の電極面を２次
空気を制限する筒体の中に挿入し、かつ、１次炎で加熱
し、他方の電極面に燃焼排ガスを接触させることにより
、正常燃焼時に燃焼センサーが所定の起電力を発生し、
不完全燃焼時または燃焼立消え時には燃焼センサーの起
電力が低下ないしはなくなる様にし、正常燃焼時におけ
る燃焼センサーの起電力によつて電磁安全弁の開成を保
持することで、従来のような大容量の電源やリレー等を
必要とすることなく、コスト安に実施できるようにした
ものである。In this case, during normal combustion, a relatively large amount of oxygen remains in the combustion exhaust gas P2, and the difference in oxygen concentration between the two electrode surfaces is small, so the electromotive force is small, at a few +mV, but due to factors such as a decrease in the oxygen concentration in the indoor air, the electromotive force is small. When incomplete combustion occurs, oxygen in the combustion exhaust gas Po disappears, and the difference in oxygen concentration increases, so that the electromotive force also increases. This situation is shown in FIG. Therefore, a power source such as a battery is connected to the electromagnetic safety valve installed in the gas path to the burner via a relay contact, and during normal combustion, the electromagnetic safety valve is energized and energized from the power source via the relay contact to keep the electromagnetic safety valve open. When incomplete combustion occurs and the electromotive force of the combustion sensor increases, the electromotive force excites the relay and turns off the relay contact, thereby closing the electromagnetic safety valve to ensure safety. However, this conventional method requires a relatively large-capacity power source to keep the electromagnetic safety valve open during combustion, and also requires relays, etc., resulting in high costs.
In addition, the burner requires a burner for all primary combustion, and in the case of the so-called Bunsen burner, which is used for boiling water etc.
Since the air-fuel ratio is smaller than 1, an electromotive force is generated under normal conditions and the electromagnetic safety valve cannot be opened. In view of this, the present invention has developed a combustion sensor in which one electrode surface is inserted into a cylindrical body that restricts secondary air, heated by a primary flame, and the other electrode surface is brought into contact with combustion exhaust gas. During combustion, the combustion sensor generates a predetermined electromotive force,
By reducing or eliminating the electromotive force of the combustion sensor during incomplete combustion or when combustion is dying out, and by keeping the electromagnetic safety valve open using the electromotive force of the combustion sensor during normal combustion, it is possible to reduce the electromotive force of the combustion sensor during normal combustion. This method can be implemented at low cost without requiring any relays or the like.
以下、本発明の一実施例を図面とともに説明する。An embodiment of the present invention will be described below with reference to the drawings.
第４図は本発明実施例の構成を示す。FIG. 4 shows the configuration of an embodiment of the present invention.
図において、１１はバーナ本体で、並列な炎孔１２，１
３を持ち、前記炎孔１２，１３間はその下方の閉塞板１
４にて閉塞された底を持つた半空間１５となつている。
またバーナ１１の炎孔の一部１６（以下内炎孔と呼ぶ）
の上側には筒体１７を設け、前記筒体７の下部には補助
空気孔１８を設け、その上部には円筒状の燃焼センサ１
９を炎孔１２，１３の対向面側から装着している。２０
は筒体１７の上面を開口させて設けた外炎孔で、この外
炎孔２０には２次炎Ｆ２Ｂが、また内炎孔１６には１次
炎Ｆ１が、またバーナ１１のその他の炎孔１２，１３に
は火炎Ｆがそれぞれ燃えるようになつてい．る。In the figure, 11 is the burner body, and flame holes 12, 1 are arranged in parallel.
3, and between the flame holes 12 and 13 is a closing plate 1 below the flame holes 12 and 13.
4, forming a half-space 15 with a closed bottom.
Also, a part 16 of the flame hole of the burner 11 (hereinafter referred to as the inner flame hole)
A cylindrical body 17 is provided on the upper side, an auxiliary air hole 18 is provided at the bottom of the cylindrical body 7, and a cylindrical combustion sensor 1 is provided on the upper part.
9 is attached from the opposite side of the flame holes 12 and 13. 20
is an outer flame hole provided by opening the upper surface of the cylindrical body 17, and the outer flame hole 20 contains the secondary flame F2B, the inner flame hole 16 contains the primary flame F1, and the other flames of the burner 11. Flames F are burning in holes 12 and 13, respectively. Ru.
２１はバーナ本体１の混合管である。21 is a mixing tube of the burner body 1.
第５図は第４図Ａ部の拡大図、及び燃焼センサー１９の
構成を示す。FIG. 5 shows an enlarged view of section A in FIG. 4 and the configuration of the combustion sensor 19.
この燃焼センサー１９は、酸化ジルコニア等の酸素イオ
ン伝導性の高温固体解質を円筒状に成型焼成した円筒状
固体電解質体。２２の内外周面に、通気性を有するポー
ラスな電極面２３，２４をそれぞれ付着形成した酸素濃
淡電池からなつている。This combustion sensor 19 is a cylindrical solid electrolyte body formed by molding and firing an oxygen ion conductive high temperature solid electrolyte such as oxidized zirconia into a cylindrical shape. It consists of an oxygen concentration cell in which porous electrode surfaces 23 and 24 having air permeability are adhered to the inner and outer circumferential surfaces of a cell 22, respectively.
この円筒状の燃焼センサ１９は筒体１７の側壁を貫通し
ており（図面中ては片側方向のみ記載）円筒状の外周の
電極面２４は−１次炎Ｆ１に接触し、内周の電極面２３
は炎孔１２，１３での燃焼排ガスＰ２が通るようになつ
ている。燃焼センサー１９の両電極はバーナへのガス通
路に設けた電磁安全弁に電気的に接続されている。This cylindrical combustion sensor 19 penetrates the side wall of the cylindrical body 17 (only one direction is shown in the drawing), and the electrode surface 24 on the cylindrical outer periphery is in contact with the −1st flame F1, and the inner periphery electrode Face 23
The combustion exhaust gas P2 from the flame holes 12 and 13 passes therethrough. Both electrodes of the combustion sensor 19 are electrically connected to an electromagnetic safety valve provided in the gas path to the burner.
周知のように、この電磁安全弁は点火時に手動によつて
開成されるか、それ以後通電によつて励磁されないと手
動の外力がなくなると同時に閉成し、励磁されると開成
を保持できる。次に作用を説明する。As is well known, this electromagnetic safety valve is opened manually at the time of ignition, or if it is not energized thereafter, it closes as soon as the external manual force is removed, and when it is energized, it can be kept open. Next, the action will be explained.
上記構成において、押回し操作等によつて点火操作を行
ない（この部分は図面なし）、ノズル（図面なし）から
出るガスによるエジェクター効果により１次空気を吸引
さｊせ、混合管２１により混合した混合気を炎孔１２，
１３で２次空気の助けにより燃焼させて火炎Ｆを形成し
、また同時に、内炎孔１６ではガスと１次空気の予混合
された混合気と若干の補助空気の助けにより１次炎Ｆ１
を形成し、また残つた未燃ガスは２次空気の助けにより
外炎孔２０で２次炎Ｆ２を成させる。正常燃焼時には、
燃焼センサー１９の外周の電極面２４を前記１次炎Ｆ１
で接触加熱し、内周面の電極面２３には火炎Ｆからの燃
焼排ガスＰ２が接触して通るようになつている。筒体１
７内は、１次炎Ｆ１が燃焼しているが、空燃比は１以下
であるため、残つた混合ガスは空気が充分供給されてい
る外炎孔２０で２次炎を形成することからもわかるよう
に、上記筒体１７内は酸素不足であり、かつＣＯ等、還
元性ガスが残つている雰囲気であるのに比して、正常燃
焼時における燃焼排ガスＰ２中は相対的に酸素の豊富な
雰囲気である。そのため正常燃焼時には、１次炎Ｆ１に
より加熱された筒体１７内にある一方の電極面２４側と
、燃焼排ガスＰ２に接する他方の電極面２３側とにおい
て、かなり酸素濃度差が存在し、燃焼センサ１９は所定
の起電力を発生する。すなわち、正常燃焼時には第６図
ａのように火炎Ｆは並列に並んでそれぞれ炎孔１２，１
３て独立して燃焼している。従つて燃焼センサー１９の
内周電極面２３の方には燃焼排ガスと若干の空気が通過
する。ところが不完全燃焼になると、第６図ｂのように
炎孔１２，１３の対向していない両端からリフトを起こ
す。In the above configuration, the ignition operation is performed by pushing and turning (this part is not shown), the primary air is sucked by the ejector effect of the gas coming out of the nozzle (not shown), and mixed by the mixing pipe 21. Pour the mixture into the flame hole 12,
At 13, combustion is performed with the help of secondary air to form a flame F, and at the same time, at the inner flame hole 16, a primary flame F1 is formed with the help of a premixed mixture of gas and primary air and some auxiliary air.
The remaining unburnt gas forms a secondary flame F2 at the outer flame hole 20 with the help of secondary air. During normal combustion,
The electrode surface 24 on the outer periphery of the combustion sensor 19 is connected to the primary flame F1.
The combustion exhaust gas P2 from the flame F contacts and passes through the electrode surface 23 on the inner peripheral surface. Cylinder 1
7, the primary flame F1 is burning, but since the air-fuel ratio is less than 1, the remaining mixed gas forms a secondary flame in the outer flame hole 20 where air is sufficiently supplied. As can be seen, the inside of the cylindrical body 17 is deficient in oxygen and has an atmosphere in which reducing gases such as CO remain, whereas the combustion exhaust gas P2 during normal combustion is relatively rich in oxygen. It has a great atmosphere. Therefore, during normal combustion, there is a considerable difference in oxygen concentration between one electrode surface 24 side in the cylinder 17 heated by the primary flame F1 and the other electrode surface 23 side in contact with the combustion exhaust gas P2, and the combustion The sensor 19 generates a predetermined electromotive force. That is, during normal combustion, the flames F are lined up in parallel and open through the flame holes 12 and 1, respectively, as shown in FIG.
3 are burning independently. Therefore, the combustion exhaust gas and some air pass toward the inner peripheral electrode surface 23 of the combustion sensor 19. However, when incomplete combustion occurs, lift occurs from both ends of the flame holes 12 and 13, which are not opposed to each other, as shown in FIG. 6b.
対向している側は、半空間１５のため負圧減になつてい
ることと、炎孔１２，１３に出来ている火炎の相互保炎
により、安定して燃焼している。しかし、両者の火炎は
互いに重なり合うように燃焼しだし、さらに酸素濃度が
低下すると、ついには第６図ｃのように火炎は一体にな
つて燃える。従つて燃焼センサー１９は火炎に包まれ、
内周電極面２３を通過する燃焼排ガスＰ２中も酸素不足
の雰囲気となり、上記酸素濃度差がなくなり、燃焼セン
サー１９は起電力を発生しなくなる。さらに他方の電極
面２４は筒体１７中にあるため、筒体中で燃えている１
次炎Ｆ１は酸素不足になると炎孔１２，１３で燃えてい
る火炎Ｆよりも早くリフトするので、燃焼センサーは冷
やされ、起電力が早く低下する。On the opposing side, the negative pressure is reduced due to the half space 15, and the flames formed in the flame holes 12 and 13 are mutually flame-holding, resulting in stable combustion. However, the two flames begin to burn as they overlap each other, and as the oxygen concentration further decreases, the flames eventually burn as one, as shown in Figure 6c. Therefore, the combustion sensor 19 is engulfed in flame,
The combustion exhaust gas P2 passing through the inner peripheral electrode surface 23 also has an oxygen-deficient atmosphere, the above-mentioned oxygen concentration difference disappears, and the combustion sensor 19 no longer generates an electromotive force. Furthermore, since the other electrode surface 24 is inside the cylinder 17, the electrode surface 24 is located inside the cylinder.
When the next flame F1 becomes oxygen deficient, it lifts faster than the flame F burning in the flame holes 12 and 13, so the combustion sensor is cooled and the electromotive force decreases faster.
また燃焼センサー１９を加熱する火炎がなくなる燃焼立
消え時には、燃焼センサー１９の温度が低下するので不
活性な状態となり、燃焼センサー１９は起電力を発生し
なくなる。第７図は燃焼センサー１９の室内酸素濃度（
燃焼用空気の酸素濃度）に対する燃焼センサー起電力の
関係を示している。Furthermore, when combustion is extinguished when there is no flame to heat the combustion sensor 19, the temperature of the combustion sensor 19 decreases and becomes inactive, and the combustion sensor 19 no longer generates an electromotive force. Figure 7 shows the indoor oxygen concentration (
The graph shows the relationship between the combustion sensor electromotive force and the oxygen concentration in the combustion air.
室内酸素濃度が通常どおりの正常燃焼時には燃焼センサ
ー１９は０．８■の所定起電力を発生しているが、室内
酸素濃度が低下して不完全燃焼になつてくると、燃焼セ
ンサー１９の起電力が低下してきて、ついには０Ｖとな
る。燃焼センサー１９の起電力がある程度低下すると、
電磁安全弁を開成保持することができなくなり、電磁安
全弁が閉じられ、バーナへのガス供給を停止して安全を
図る。以上説明してきたように本発明は、並列に配置し
た炎孔間のの下部を閉塞した構造を有するバーナを用い
、その炎孔の一部に２次空気を制御する筒体を設けると
ともに、この筒体の中にできる１次炎に上記燃焼センサ
ーの一方の電極を加熱接触させ、他方の電極を上記バー
ナ炎孔の間に配置するものであり、次のような作用効果
を有する。During normal combustion when the indoor oxygen concentration is normal, the combustion sensor 19 generates a predetermined electromotive force of 0.8μ, but when the indoor oxygen concentration decreases and incomplete combustion occurs, the combustion sensor 19 generates a predetermined electromotive force. The power decreases and finally reaches 0V. When the electromotive force of the combustion sensor 19 decreases to a certain extent,
The electromagnetic safety valve can no longer be held open, so the electromagnetic safety valve is closed and the gas supply to the burner is stopped to ensure safety. As explained above, the present invention uses a burner having a structure in which the lower part between the flame holes arranged in parallel is closed, and a cylinder body for controlling secondary air is provided in a part of the flame hole. One electrode of the combustion sensor is brought into heating contact with the primary flame formed in the cylindrical body, and the other electrode is placed between the burner flame holes, and has the following effects.
（１）燃焼センサーによつて正常燃焼時であるのか、あ
るいは不完全燃焼時、燃焼立消え時などの異常時である
のかを検知でき、異常時には電磁安全弁を閉成して安全
を図ることができる。（２）燃焼センサーは正常燃焼時
に起電力を発生するので、その起電力でもつて電磁安全
弁を開成保持することができ、従来例のように電磁安全
弁の開成保持のために比較的大容量の直流電源、リレー
スイッチ等を必要とせず、安価に実施できる。（３）湯
沸器等に取付けた場合、メインバーナそのものの不完全
燃焼を検知するため、酸素不足による不完全燃焼のみな
らず、熱交換器のフィンづまりによる不完全燃焼にも対
応できる。(1) Combustion sensors can detect whether combustion is normal or abnormal, such as incomplete combustion or combustion dying out, and in the event of an abnormality, the electromagnetic safety valve can be closed to ensure safety. . (2) Since the combustion sensor generates an electromotive force during normal combustion, the electromotive force can also be used to open and hold the electromagnetic safety valve, and unlike conventional examples, a relatively large capacity DC current is used to keep the electromagnetic safety valve open. It does not require a power supply, relay switch, etc., and can be implemented at low cost. (3) When installed in a water heater, etc., it detects incomplete combustion in the main burner itself, so it can handle not only incomplete combustion due to lack of oxygen, but also incomplete combustion due to clogging of heat exchanger fins.
（４）炎孔の１部を筒体で囲い、そこで燃焼している１
次炎の温度検知も行なつているため、上記筒体内で燃焼
している１次炎の変化を敏速につかまえることができ、
バーナが不完全燃焼する直前を検出することができる。(4) Part of the flame hole is surrounded by a cylindrical body, and combustion occurs there.
Since the temperature of the secondary flame is also detected, changes in the primary flame burning inside the cylinder can be quickly detected.
It is possible to detect when the burner is about to reach incomplete combustion.
図面の簡単な説明第１図は従来の燃焼センサーの断面、
第２図はその部分拡大断面図、第３図はその燃焼センサ
ーの特性図、第４図は本発明の一実施例を示す斜視図、
第５図はその燃焼センサー部の拡大断面図、第６図Ａ，
ｂ，ｃは本発明の一実施例におけるバーナに出来る火炎
の変化図、第７図はその燃焼センサーの特性図である。Brief explanation of the drawings Figure 1 shows a cross section of a conventional combustion sensor.
FIG. 2 is a partially enlarged sectional view thereof, FIG. 3 is a characteristic diagram of the combustion sensor, and FIG. 4 is a perspective view showing an embodiment of the present invention.
Figure 5 is an enlarged sectional view of the combustion sensor section, Figure 6A,
b and c are diagrams showing changes in the flame produced in the burner in one embodiment of the present invention, and FIG. 7 is a characteristic diagram of the combustion sensor.
１１・・・・・・バーナ、１２，１３・・・・・炎孔、
１４・・・・・閉塞板、１５・・・・・・半空間、１６
・・・・・・内炎孔、１７・・・・・・筒体、１８・・
・・・補助空気孔、１９・・・・・・燃焼センサー、２
０・・・・・・外炎孔、２１・・・・・混合管、２２・
・・・・・固体電解質体、２３，２４・・・・・・電極
面。11...burner, 12,13...flame hole,
14...Occlusion plate, 15...Half space, 16
...Inner flame hole, 17...Cylinder body, 18...
... Auxiliary air hole, 19 ... Combustion sensor, 2
0... Outer flame hole, 21... Mixing pipe, 22...
...Solid electrolyte body, 23, 24... Electrode surface.
Claims (1)
方部を閉塞して半空間にすると共に、前記炎孔の少なく
とも炎孔対向面の２次空気を制限すべく筒体を配し、酸
素イオン伝導性の高温固体電解質を用いた酸素濃炎電池
からなる燃焼センサを前記筒体の炎孔対向面側に貫通さ
せることにより、一方の電極は前記筒体中の１次炎に接
触させ、他方の電極は前記筒体外の燃焼排ガスと接触す
るように設け、正常燃焼時に燃焼に発生する起電力によ
つてバーナへの燃料供給路に設けた電磁安全弁の開成を
保持することを特徴とする燃焼安全装置。 ２ 燃焼センサは両端が開口した筒状で筒体に貫通した
ことを特徴とする特許請求の範囲第１項記載の燃焼安全
装置。[Claims] 1. Two burner flame holes are arranged in parallel, the lower part between the burner holes is closed to create a half space, and the secondary air is removed from at least the side facing the flame hole. A combustion sensor made of an oxygen enriched flame cell using an oxygen ion conductive high temperature solid electrolyte is inserted through the cylinder on the side opposite to the flame hole, so that one electrode is connected to the cylinder. An electromagnetic safety valve is provided in the fuel supply path to the burner by the electromotive force generated by combustion during normal combustion, with the other electrode being in contact with the primary flame in the body and the other electrode being in contact with the combustion exhaust gas outside the cylindrical body. A combustion safety device characterized in that it maintains the opening of the flame. 2. The combustion safety device according to claim 1, wherein the combustion sensor has a cylindrical shape with both ends open and penetrates the cylindrical body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP503079A JPS6056974B2 (en) | 1979-01-20 | 1979-01-20 | Combustion safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP503079A JPS6056974B2 (en) | 1979-01-20 | 1979-01-20 | Combustion safety device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5596832A JPS5596832A (en) | 1980-07-23 |
| JPS6056974B2 true JPS6056974B2 (en) | 1985-12-12 |
Family
ID=11600073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP503079A Expired JPS6056974B2 (en) | 1979-01-20 | 1979-01-20 | Combustion safety device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6056974B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6329279U (en) * | 1986-08-02 | 1988-02-26 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5637422A (en) * | 1979-09-01 | 1981-04-11 | Rinnai Corp | Safety device for combustion |
-
1979
- 1979-01-20 JP JP503079A patent/JPS6056974B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6329279U (en) * | 1986-08-02 | 1988-02-26 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5596832A (en) | 1980-07-23 |
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