JPH0220895B2 - - Google Patents
Info
- Publication number
- JPH0220895B2 JPH0220895B2 JP58098592A JP9859283A JPH0220895B2 JP H0220895 B2 JPH0220895 B2 JP H0220895B2 JP 58098592 A JP58098592 A JP 58098592A JP 9859283 A JP9859283 A JP 9859283A JP H0220895 B2 JPH0220895 B2 JP H0220895B2
- Authority
- JP
- Japan
- Prior art keywords
- combustion
- output
- oxygen concentration
- color sensor
- consumption rate
- 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 - Lifetime
Links
- 238000002485 combustion reaction Methods 0.000 claims description 25
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- 239000001301 oxygen Substances 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 9
- 230000035945 sensitivity Effects 0.000 claims description 3
- 239000003350 kerosene Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 12
- 239000007789 gas Substances 0.000 description 6
- 239000000446 fuel Substances 0.000 description 5
- 206010021143 Hypoxia Diseases 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 235000009781 Myrtillocactus geometrizans Nutrition 0.000 description 2
- 240000009125 Myrtillocactus geometrizans Species 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000006200 vaporizer 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2223/00—Signal processing; Details thereof
- F23N2223/08—Microprocessor; Microcomputer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2231/00—Fail safe
- F23N2231/20—Warning devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2233/00—Ventilators
- F23N2233/06—Ventilators at the air intake
-
- 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
- F23N5/08—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Combustion (AREA)
Description
【発明の詳細な説明】
本発明は、燃焼機器の燃料消費速度に対応して
不完全燃焼状態の検知装置を提供するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention provides an apparatus for detecting incomplete combustion in response to the fuel consumption rate of combustion equipment.
燃焼器具を密閉度の高い部屋で燃焼させた場合
時間経過と共に酸素濃度は減少し、さらに酸素不
足の状態に陥いると、燃焼器具は不完全燃焼を起
し、排ガス中には不燃ガスや一酸化炭素が増加し
てくるために生理上有害となり、時には死亡につ
ながる危険な雰囲気をかもし出していた。 When a combustion appliance is burned in a tightly closed room, the oxygen concentration decreases over time, and if oxygen becomes insufficient, the combustion appliance will undergo incomplete combustion, and the exhaust gas will contain incombustible gas and other gases. The increase in carbon oxide created a dangerous atmosphere that was physiologically harmful and could even lead to death.
このため空気中の酸素濃度を燃焼炎から検知す
る後述するような色センサを用いてこのような事
故を未然に防ぐ装置（特願昭56−73868号）が考
えられている。 For this reason, a device (Japanese Patent Application No. 73868/1983) has been proposed to prevent such accidents by using a color sensor as described below that detects the oxygen concentration in the air from the combustion flame.
しかし、燃料消費速度が変化した場合、色セン
サの出力が変化し、そのため、色センサによる一
定の酸素濃度検知が正確にできないという欠点を
有していた。 However, when the fuel consumption rate changes, the output of the color sensor changes, which has the disadvantage that the color sensor cannot accurately detect a constant oxygen concentration.
本発明は上記の点に鑑みなされたもので、燃料
消費速度が変化しても、一定の酸素濃度による不
完全燃焼検知が行なえる装置を提供するものであ
る。 The present invention has been made in view of the above points, and it is an object of the present invention to provide a device that can detect incomplete combustion based on a constant oxygen concentration even if the fuel consumption rate changes.
本発明者は、上記発明に先立つて燃料消費速度
が変化した場合、燃焼炎から発生する光の波長の
変化を検出する色センサの出力と酸素濃度の関係
が一定の関係で変化することを発見した。 Prior to the above invention, the present inventor discovered that when the fuel consumption rate changes, the relationship between the output of a color sensor that detects changes in the wavelength of light generated from combustion flame and oxygen concentration changes in a constant relationship. did.
第１図は上記事実を裏付けるために用いた実験
装置の概略説明図で、１は密閉室、２は燃焼器
具、３はその燃焼炎、４は上述した色センサ、５
はO2センサ、６は色センサ４の出力を増幅する
増幅器、７はO2濃度メータ、８は記録計である。 Figure 1 is a schematic explanatory diagram of the experimental equipment used to prove the above fact, in which 1 is a sealed chamber, 2 is a combustion appliance, 3 is its combustion flame, 4 is the color sensor mentioned above, and 5
is an O 2 sensor, 6 is an amplifier that amplifies the output of the color sensor 4, 7 is an O 2 concentration meter, and 8 is a recorder.
第２図は気化式燃焼器の正面図であつて、２は
油タンク９を８側に備えた燃焼器本体である。１
０は油タンク９と連通した気化器で液体灯油を気
化ガスに変換する。１１はこの気化ガスを燃焼さ
せるブンゼン式のバーナで、当該気化ガスはここ
で還元炎１２、酸化炎１３からなる青炎として燃
焼する。１４はバーナ１１を囲繞する如く設けら
れた炉で上方に排気口１５を有する。この排気口
１５からの熱気１６は本体２内の後部に設けられ
たフアン（図示せず）で温風として本体２前面に
送風される。１７は上記炉１４の酸化炎１３に対
応した位置に穿設された透視窓で、その外周部に
は断熱材１８を介して〓字状の素子取付アングル
１９がビス２０でもつて締着されている。２１は
上記アングル１９に挿通固定された保護管でその
一端に色センサ４が設けられている。この保護管
２１は素子４の保護と同時にその性能を向上させ
るため外部からの光をしや断する役目も兼ねてい
る。２２は素子４のリード線である。なお素子４
の取り付け位置（Ｘ…高さ）はバーナ面上から10
〜50mmの適当な位置にするが、青炎との関係で最
適位置を選べばよい。 FIG. 2 is a front view of the vaporization type combustor, and 2 is a combustor main body equipped with an oil tank 9 on the 8 side. 1
0 is a vaporizer communicating with the oil tank 9, which converts liquid kerosene into vaporized gas. Reference numeral 11 denotes a Bunsen-type burner that burns this vaporized gas, where the vaporized gas is burned as a blue flame consisting of a reducing flame 12 and an oxidizing flame 13. A furnace 14 is provided to surround the burner 11 and has an exhaust port 15 above. The hot air 16 from the exhaust port 15 is blown to the front of the main body 2 as warm air by a fan (not shown) provided at the rear inside the main body 2. Reference numeral 17 denotes a see-through window bored at a position corresponding to the oxidizing flame 13 of the furnace 14, and a square-shaped element mounting angle 19 is fastened with screws 20 to the outer periphery of the window through a heat insulating material 18. There is. Reference numeral 21 denotes a protective tube inserted into and fixed to the angle 19, and a color sensor 4 is provided at one end of the protective tube. This protection tube 21 serves to protect the element 4 and also to block light from the outside in order to improve its performance. 22 is a lead wire of the element 4. Note that element 4
The installation position (X...height) is 10 from the top of the burner surface.
Set it at an appropriate position of ~50mm, but choose the optimal position in relation to the blue flame.
色センサの構造及び等価回路を第３図ａ，ｂに
示す。Ｐ層２３とＮ層２４とのPN接合によるホ
トダイオード（受光素子）PD１は短波長感度が
大であり、Ｐ層２５とＮ層２４とのPN接合によ
るホトダイオードPD２は長波長感度が大である。
なお、２６は絶縁膜、２７はＰ層２３に設けられ
た電極、２８はＮ層２４に設けられた電極、２９
はＰ層２５に設けられた電極である。上記両ホト
ダイオードPD１，PD２の短絡電流比ISC2／ISC1と
受光素子λとは第４図に示す如く、１：１の対応
関係を有している。従つて、逆に、両ダイオード
PD１，PD２の短絡電流比が判れば、受光した波
長すなわち色を識別することができるはずであ
る。しかしながらこの色センサは単一波長に対し
ては識別が正確であつても、燃焼炎のように複数
種類の波長を放射しているものをどのように識別
するかについては判然としていない。そこで酸素
濃度と、この時の燃焼炎の色に対する短絡電流比
との関係を実験により調べた処第５図の如く、酸
素濃度が、19％近傍では、その短絡電流比が急速
に下降している。従つて、この立下りを検出する
ことにより、不完全燃焼の開始を正確に検知する
ことができる。 The structure and equivalent circuit of the color sensor are shown in FIGS. 3a and 3b. A photodiode (light receiving element) PD1 formed by a PN junction between a P layer 23 and an N layer 24 has high short wavelength sensitivity, and a photodiode PD2 formed by a PN junction between a P layer 25 and an N layer 24 has high long wavelength sensitivity.
In addition, 26 is an insulating film, 27 is an electrode provided on the P layer 23, 28 is an electrode provided on the N layer 24, and 29
is an electrode provided on the P layer 25. As shown in FIG. 4, the short-circuit current ratio I SC2 /I SC1 of both photodiodes PD1 and PD2 and the light receiving element λ have a 1:1 correspondence relationship. Therefore, conversely, both diodes
If the short-circuit current ratio of PD1 and PD2 is known, it should be possible to identify the wavelength or color of the received light. However, although this color sensor is accurate in identifying a single wavelength, it is not clear how to identify something that emits multiple wavelengths, such as a combustion flame. Therefore, we conducted an experiment to investigate the relationship between the oxygen concentration and the short-circuit current ratio with respect to the color of the combustion flame. As shown in Figure 5, when the oxygen concentration is around 19%, the short-circuit current ratio rapidly decreases. There is. Therefore, by detecting this fall, it is possible to accurately detect the start of incomplete combustion.
しかし、一般に気化式燃焼器は、手動又はサー
ミスタ等により自動的に火力すなわち発熱量調整
を行なう。このとき、灯油消費速度が変化する。
本実施例の場合、灯油消費速度は0.36／ｈ〜
0.19／ｈ（発熱量3000kcal／ｈ〜1600kcal／ｈ）
と変化する。第５図に、灯油消費速度0.36／ｈ
の燃焼結果を実線で、灯油消費速度0.19／ｈの
燃焼結果を破線で示す。灯油消費速度が0.36／
ｈから0.19／ｈの途中にある場合の結果は、第
５図の実線と破線の間で示される。第５図に示す
如く、灯油消費量が少くなると、色センサの短絡
電流比が大幅に減少するときの酸素濃度が変化し
ている。従つて、酸素濃度の検知レベル（例え
ば、19.0％）を一定にするには、色センサの短絡
電流比の検知設定レベルを灯油燃焼速度に応じて
ａからｂの間で変えれば良い。 However, in general, the vaporization type combustor adjusts the thermal power, that is, the calorific value, manually or automatically using a thermistor or the like. At this time, the kerosene consumption rate changes.
In the case of this example, the kerosene consumption rate is 0.36/h ~
0.19/h (Calorific value 3000kcal/h ~ 1600kcal/h)
and changes. Figure 5 shows the kerosene consumption rate of 0.36/h.
The solid line shows the combustion results for kerosene consumption rate 0.19/h, and the broken line shows the combustion results for a kerosene consumption rate of 0.19/h. Kerosene consumption rate is 0.36/
The results for the case between h and 0.19/h are shown between the solid line and the broken line in FIG. As shown in FIG. 5, when the amount of kerosene consumed decreases, the oxygen concentration changes when the short circuit current ratio of the color sensor decreases significantly. Therefore, in order to keep the oxygen concentration detection level (for example, 19.0%) constant, the detection setting level of the short circuit current ratio of the color sensor may be changed between a and b depending on the kerosene burning speed.
第６図は上記事実に基づいて、室内の酸素濃度
が検知レベル以下になれば換気指示等の警報を発
生するようにした装置の要部ブロツク図である。
同図において、３０，３１はそれぞれ対数増幅回
路で、各ホトダイオードPD１，PD２に接続され
ている。３２は上記各対数増幅回路３０，３１の
出力logISC1，logISC2の差をとるための差動増幅器
である。この増幅器３２の出力（logISC2／ISC1）
は燃焼制御器３３からの出力（すなわち灯油消費
速度に対応した検知レベル）とコンパレータ３４
により比較判定される。そして、このコンパレー
タ３４の出力によつて、燃焼制御器３、換気扇３
６、警報ブザー３７等を制御するマイコン等の制
御部３５を設けておけば、室内の酸欠状態を未然
に防止することができる。 FIG. 6 is a block diagram of the main parts of a device which, based on the above facts, generates an alarm such as a ventilation instruction when the oxygen concentration in the room falls below the detection level.
In the figure, 30 and 31 are logarithmic amplifier circuits, respectively, and are connected to the respective photodiodes PD1 and PD2. 32 is a differential amplifier for taking the difference between the outputs logI SC1 and logI SC2 of each of the logarithmic amplifier circuits 30 and 31. The output of this amplifier 32 (logI SC2 /I SC1 )
is the output from the combustion controller 33 (that is, the detection level corresponding to the kerosene consumption rate) and the comparator 34
Comparative judgment is made by. Then, depending on the output of this comparator 34, the combustion controller 3, the ventilation fan 3
6. By providing a control unit 35 such as a microcomputer that controls the alarm buzzer 37, etc., it is possible to prevent an oxygen deficiency state in the room.
第７図，８図は、第６図に示した本発明装置の
要部ブロツク図に対する具体的な例である。第７
図は、第６図の燃焼制御器３３を、スイツチＳ１
をオン、オフすることでポンプ３８の吐出量を制
御し、灯油消費速度を3000kcal／ｈと1600kcal／
ｈとにする回路構成としたものであり、抵抗r1，
r2，r3，r4、フオトカプラーPC１等により構成さ
れている。フオトカプラーPC１中のダイオード
Ｄ１が発光し、フオトトランジスタTr1が短絡状
態のとき、ポンプ３８の吐出量は最大となる。ス
イツチＳ１のオン、オフにより抵抗r2に対して抵
抗r3が並列に接続されるかされないかの状態にな
る。従つてコンパレータ３４の比較電圧のレベル
がスイツチＳ１がオンのとき低く、オフのとき高
くなり検知レベルの調整ができることになる。 7 and 8 are specific examples of the main part block diagram of the apparatus of the present invention shown in FIG. 6. 7th
The diagram shows the combustion controller 33 in FIG.
By turning on and off, the discharge amount of the pump 38 is controlled, and the kerosene consumption rate is set to 3000kcal/h and 1600kcal/h.
The circuit configuration is such that the resistance r 1 ,
It is composed of r 2 , r 3 , r 4 , photocoupler PC1, etc. When the diode D1 in the photocoupler PC1 emits light and the phototransistor T r1 is short-circuited, the discharge amount of the pump 38 becomes maximum. Depending on whether the switch S1 is turned on or off, the resistor r3 is connected in parallel to the resistor r2 or not. Therefore, the level of the comparison voltage of the comparator 34 is low when the switch S1 is on, and high when the switch S1 is off, making it possible to adjust the detection level.
第８図は灯油消費速度を連続的に変化させる燃
焼制御回路の１例である。オペアンプIC１、抵
抗R1〜R10、コンデンサＣ１よりなる回路は、
温度調節ボリウムV1とサーミスタTH１の抵抗値
の大小によつて、フオトカプラーPC２中のフオ
トトランジスタTr2の抵抗をダイオードＤ２の発
光により制御し、ポンプ３９の吐出量を自動的に
コントロールして室温の制御を行なつている。第
５図に示すように、一定酸素濃度の検知レベル
（例えば19.0％）に対して灯油消費量ごとの設定
レベルは、オペアンプIC２、R11〜R14、コンデ
ンサＣ２より構成される回路からの信号により設
定される。この灯油消費量に対応した設定レベル
の信号と、色センサの出力信号はコンパレータ３
４に入力し、比較判定される。コンパレータ３４
の出力によつて、燃料送油ポンプ３９、換気扇３
６、警報ブザー３７等を制御する制御部３５が設
置されているので、室内の酸欠状態を未然に防止
することができる。 FIG. 8 is an example of a combustion control circuit that continuously changes the kerosene consumption rate. The circuit consisting of operational amplifier IC1, resistors R1 to R10, and capacitor C1 is as follows:
Depending on the resistance value of the temperature control volume V1 and thermistor TH1, the resistance of the phototransistor T r2 in the photocoupler PC2 is controlled by the light emission of the diode D2, and the discharge amount of the pump 39 is automatically controlled to maintain the room temperature. is under control. As shown in Fig. 5, the setting level for each kerosene consumption amount for a fixed oxygen concentration detection level (for example, 19.0%) is determined by a signal from a circuit consisting of operational amplifier IC2, R11 to R14 , and capacitor C2. Set by. The setting level signal corresponding to this kerosene consumption and the output signal of the color sensor are sent to comparator 3.
4 and is compared and determined. Comparator 34
Depending on the output of the fuel oil pump 39, ventilation fan 3
6. Since the control unit 35 that controls the alarm buzzer 37 and the like is installed, it is possible to prevent an oxygen deficiency state in the room.
なお、この色センサを用いると、受光された光
の波長は２つのホトダイオードPD１，PD２の出
力間の比として得られ単一受光素子を使用する場
合のように、素子の出力の絶対値に依存しないか
ら、受光面に汚れがあつたり、炎がゆらいだりし
てもその影響をほとんど受けることがなく、正確
に酸素濃度を検知することができる。又、同一チ
ツプ上に、２個のホトダイオードPD１，PD２が
集積されているのでセンサ４への温度影響は相殺
され、温度の影響は小さくできる。又、透視窓１
７が汚れていても電流比をとるからその汚れの影
響をあまり受けなくて済む。 Note that when using this color sensor, the wavelength of the received light is obtained as the ratio between the outputs of the two photodiodes PD1 and PD2, and does not depend on the absolute value of the output of the element, as in the case of using a single photodiode. Therefore, even if the light-receiving surface gets dirty or the flame flickers, it will not be affected much and the oxygen concentration can be detected accurately. Furthermore, since the two photodiodes PD1 and PD2 are integrated on the same chip, the influence of temperature on the sensor 4 is canceled out, and the influence of temperature can be reduced. Also, see-through window 1
Even if 7 is dirty, the current ratio is taken, so there is no need to be affected much by the dirt.
又、上記実施例は同一チツプ上に２個のフオト
ダイオードを形成し、そのＳ１層にフイルタの役
割をさせた色センサを用いたが、波長感度の異な
る受光素子を２個設け、この受光素子の出力間の
相対値を用いてもよい。 Furthermore, in the above embodiment, two photodiodes are formed on the same chip, and a color sensor is used in which the S1 layer functions as a filter. You may also use relative values between the outputs.
以上のように、本発明によれば燃焼炎からの光
を受光する複数個の受光素子の出力間の相対値か
ら酸素濃度を検知する装置において、燃料消費速
度が変つても正確に酸素濃度を検知することがで
きる。従つてこの検知出力を利用して換気等を行
うようにすれば酸欠による事故はもちろん酸素不
足に伴う頭痛等もなくすことができる。 As described above, according to the present invention, in a device that detects oxygen concentration from the relative value between the outputs of a plurality of light receiving elements that receive light from a combustion flame, the oxygen concentration can be accurately detected even if the fuel consumption rate changes. Can be detected. Therefore, by using this detection output to perform ventilation, etc., not only accidents caused by oxygen deficiency but also headaches caused by oxygen deficiency can be avoided.
第１図：本発明の説明に供する実験装置の概略
説明図、第２図：本発明の装置を具備した燃焼器
の正面説明図、第３図ａ，ｂ：色センサの構造図
及び等価回路図、第４図：第３図色センサの短絡
電流比−波長特性を示す特性図、第５図：色セン
サの短絡電流比と酸素濃度との関係を示す特性
図、第６図：本発明装置の要部ブロツク図、第７
図：本発明装置の具体的な例のブロツク図、第８
図：本発明装置の具体的な他の例のブロツク図。
符号、４：半導体色センサ、３３：燃焼制御
器、３４：コンパレータ。
Fig. 1: Schematic explanatory diagram of an experimental device used to explain the present invention, Fig. 2: Front explanatory diagram of a combustor equipped with the device of the present invention, Fig. 3 a, b: Structural diagram and equivalent circuit of a color sensor. Figure 4: Figure 3: Characteristic diagram showing the short-circuit current ratio-wavelength characteristics of the color sensor; Figure 5: Characteristic diagram showing the relationship between the short-circuit current ratio and oxygen concentration of the color sensor; Figure 6: The present invention Main part block diagram of the device, No. 7
Figure: Block diagram of a specific example of the device of the present invention, No. 8
Figure: Block diagram of another specific example of the device of the present invention. Symbol, 4: Semiconductor color sensor, 33: Combustion controller, 34: Comparator.
Claims (1)
複数個の受光素子をを設け、各素子の出力間の相
対値から酸素濃度を検知するものにおいて、 燃焼機器の燃料消費速度に対応する速度信号を
出力する燃焼制御器と、 この出力を基準値とし、上記各素子の出力間の
相対値出力を比較値として導入されるコンパレー
タとを具備し、 このコンパレータの出力を不完全燃焼検知信号
とする不完全燃焼検知装置。[Scope of Claims] 1. A device that includes a plurality of light-receiving elements having different wavelength sensitivities for receiving light from a combustion flame, and detects oxygen concentration from a relative value between the outputs of each element, which includes: It is equipped with a combustion controller that outputs a speed signal corresponding to the speed, and a comparator that uses this output as a reference value and uses the relative value output between the outputs of each of the above elements as a comparison value, and uses the output of this comparator as a reference value. An incomplete combustion detection device that uses a complete combustion detection signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58098592A JPS59221520A (en) | 1983-05-31 | 1983-05-31 | Incomplete combustion sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58098592A JPS59221520A (en) | 1983-05-31 | 1983-05-31 | Incomplete combustion sensing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59221520A JPS59221520A (en) | 1984-12-13 |
| JPH0220895B2 true JPH0220895B2 (en) | 1990-05-11 |
Family
ID=14223906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58098592A Granted JPS59221520A (en) | 1983-05-31 | 1983-05-31 | Incomplete combustion sensing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59221520A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61240026A (en) * | 1985-04-16 | 1986-10-25 | Babcock Hitachi Kk | Multiple visual field type flame detector |
| JPH0627578B2 (en) * | 1985-10-25 | 1994-04-13 | バブコツク日立株式会社 | Flame detector |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57189043A (en) * | 1981-05-15 | 1982-11-20 | Sharp Corp | Detector for oxygen deficiency state |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6218829Y2 (en) * | 1980-04-16 | 1987-05-14 |
-
1983
- 1983-05-31 JP JP58098592A patent/JPS59221520A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57189043A (en) * | 1981-05-15 | 1982-11-20 | Sharp Corp | Detector for oxygen deficiency state |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59221520A (en) | 1984-12-13 |
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