JPH07158843A - Combustion apparatus - Google Patents
Combustion apparatusInfo
- Publication number
- JPH07158843A JPH07158843A JP30399893A JP30399893A JPH07158843A JP H07158843 A JPH07158843 A JP H07158843A JP 30399893 A JP30399893 A JP 30399893A JP 30399893 A JP30399893 A JP 30399893A JP H07158843 A JPH07158843 A JP H07158843A
- Authority
- JP
- Japan
- Prior art keywords
- flame
- burner
- combustion
- rod
- insulator
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、バーナの火炎の状態を
検出し、制御する燃焼装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion device for detecting and controlling a flame state of a burner.
【０００２】[0002]
【従来の技術】図３はこの種の燃焼装置の全体構成を示
し、燃料供給ブロック８と、ファン２から送り込まれる
燃料と空気をバーナ１で燃焼させ、流水センサ４を経由
し熱交換器３内に流れた水を燃焼ガスで加熱する。その
後燃焼ガスはトップ６から排出される。加熱された水は
出湯サーミスタ５で湯温が検出され、その情報は制御装
置１３に送られる。又、バーナ１の火炎の状態は火炎検
出装置７で検出され、その情報は制御装置１３に送られ
る。2. Description of the Related Art FIG. 3 shows the overall structure of a combustion apparatus of this type. The fuel supply block 8 and the fuel and air sent from a fan 2 are burned by a burner 1 and a heat exchanger 3 is passed through a water flow sensor 4. The water flowing inside is heated with combustion gas. After that, the combustion gas is discharged from the top 6. The hot water temperature of the heated water is detected by the hot water discharge thermistor 5, and the information is sent to the control device 13. The flame state of the burner 1 is detected by the flame detection device 7, and the information is sent to the control device 13.
【０００３】図４は、プロパンガスが燃焼した場合の火
炎の陽イオンの濃度分布を示している。フレームロッド
電流はイオン濃度の高い部分で多く発生することから、
火炎の内側と外側との境がフレームロッド電流値が高い
ことがわかる。FIG. 4 shows the concentration distribution of cations in the flame when propane gas burns. Since many frame rod currents are generated at high ion concentration,
It can be seen that the flame rod current value is high at the boundary between the inside and outside of the flame.
【０００４】図１０、図１１において、燃焼装置の火炎
検出装置は検出部であるロッド１５と、ロッド１５を絶
縁する碍子１４で構成し、遮熱プレート１７はバーナで
発生する熱をバーナ１外に伝導させないよう、バーナケ
ース１６とバーナ１間に配置してある。バーナ１の端部
の炎孔１ａは遮熱プレート１７が火炎で加熱されないよ
う、炎孔閉塞部１ｂにより閉塞してある。バーナケース
１６と遮熱プレート１７間には冷却空気Ｃ0 が下方から
上方に流れていて碍子１４とバーナケース１６を冷却し
ている。ロッド１５はバーナ１内で上方に曲げられ、ロ
ッド１５の先端は火炎外に露出している。また、碍子先
端部１４ａは、炎孔閉塞部１ｂより遮熱プレート１７側
に後退（ｌ1 ）して設置してある。In FIGS. 10 and 11, the flame detection device of the combustion device is composed of a rod 15 which is a detection portion and an insulator 14 which insulates the rod 15, and a heat shield plate 17 is provided outside the burner 1 for generating heat generated by the burner. It is arranged between the burner case 16 and the burner 1 so as not to be conducted to the burner 1. The flame hole 1a at the end of the burner 1 is closed by a flame hole closing portion 1b so that the heat shield plate 17 is not heated by the flame. Cooling air C 0 flows between the burner case 16 and the heat shield plate 17 from the lower side to the upper side to cool the insulator 14 and the burner case 16. The rod 15 is bent upward in the burner 1, and the tip of the rod 15 is exposed to the outside of the flame. Further, the insulator tip portion 14a is set back (l 1 ) from the flame hole closing portion 1b toward the heat shield plate 17 side.
【０００５】図１０は、燃焼状態が正常で燃焼量が大の
場合及び、燃焼量が小の場合の火炎検出装置と火炎の関
係を示し、ロッド１５の先端部はＡ1 、根元部はＢ1 の
ようにロッド１５は火炎外に露出している。FIG. 10 shows the relationship between the flame detection device and the flame when the combustion state is normal and the combustion amount is large and when the combustion amount is small. The tip of the rod 15 is A 1 and the root is B. As in 1 , the rod 15 is exposed to the outside of the flame.
【０００６】図１１は、バーナ１に対し排気側及び給気
側が閉塞された場合等に、不完全燃焼状態となった場合
の火炎検出装置と火炎の関係を示す。これは、燃焼量の
大、小の何れの場合でも同状態になり、ロッド１５の先
端部のＡ1 は不完全燃焼で火炎が伸びた為に火炎内に隠
れているが、根元部のＢ1 は碍子先端部１４ａが炎孔閉
塞部１ｂより後退（ｌ1 ）している為に、ロッド１５は
火炎外に露出している。不完全燃焼状態の場合、冷却空
気Ｃ0 は減少するが、遮熱プレート１７と碍子１４間に
は隙間は無くバーナ１の火炎は影響されることはない。FIG. 11 shows the relationship between the flame detection device and the flame in the case of incomplete combustion such as when the exhaust side and the supply side of the burner 1 are closed. This is the same regardless of whether the amount of combustion is large or small, and A 1 at the tip of the rod 15 is hidden in the flame because the flame extends due to incomplete combustion, but B 1 at the root In No. 1 , the rod tip 15a is exposed outside the flame because the insulator tip portion 14a is retracted (l 1 ) from the flame hole closing portion 1b. In the case of incomplete combustion, the cooling air C 0 decreases, but there is no gap between the heat shield plate 17 and the insulator 14, and the flame of the burner 1 is not affected.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、上記の
ような構成では、バーナ１に対し排気側および給気側が
閉塞され不完全燃焼状態になった場合において、ロッド
１５の先端部Ａ1 は火炎が伸びることにより火炎内に隠
れる。しかし、ロッド１５の根元部Ｂ1 付近の火炎形状
は変化が著しく少ないため、根元部Ｂ1 は火炎外に露出
したままの状態である。フレームロッド電流は火炎から
ロッド１５が露出している箇所で発生する（図４参照）
ため、実際は不完全燃焼状態であっても、この場合正常
燃焼状態と誤った判断をしてしまうという課題を有して
いた。本発明は、かかる従来の課題を解決するもので、
バーナ１に対し排気側および給気側が閉塞された場合に
確実に不完全燃焼であると判断できる火炎検出装置を備
えた燃焼装置を提供することを目的とするものである。However, in the above-described structure, when the exhaust side and the supply side of the burner 1 are closed and an incomplete combustion state occurs, the tip portion A 1 of the rod 15 is not burned. Hiding in the flame as it stretches. However, since the flame shape in the vicinity of the root portion B 1 of the rod 15 is not significantly changed, the root portion B 1 is still exposed to the outside of the flame. Flame rod current is generated where the rod 15 is exposed from the flame (see Fig. 4).
Therefore, in this case, even if the combustion state is incomplete, there is a problem in that in this case, it is incorrectly determined that the combustion state is normal. The present invention solves such conventional problems,
An object of the present invention is to provide a combustion device equipped with a flame detection device capable of reliably determining incomplete combustion when the exhaust side and the supply side of the burner 1 are blocked.
【０００８】[0008]
【課題を解決するための手段】上記課題を解決するため
に、本発明の燃焼装置は、遮熱プレートを貫通する火炎
検出装置の碍子の下部と遮熱プレート間に設けた空気導
入孔に、バーナケースと遮熱プレート間に流れる冷却空
気を導くようにしたものである。また、火炎検出装置の
碍子先端部をバーナの炎孔閉塞部よりバーナ内部に突出
するように設けたものである。In order to solve the above-mentioned problems, the combustion apparatus of the present invention has an air introduction hole provided between a lower portion of an insulator of a flame detecting device penetrating the heat shield plate and the heat shield plate. The cooling air flowing between the burner case and the heat shield plate is introduced. In addition, the tip of the insulator of the flame detecting device is provided so as to protrude from the flame hole closing portion of the burner into the burner.
【０００９】[0009]
【作用】本発明は上記した構成によって、火炎検出装置
のロッドの根元部と火炎の関係は、正常燃焼時は、空気
導入孔からの冷却空気がロッドの根元部に吹き込み、火
炎はバーナの内部側に変形しロッドの根元部は火炎外に
露出する。また、不完全燃焼状態時には、空気導入孔か
らの冷却空気の吹き込みは減少し、火炎は真上から遮熱
プレート側に変形するようになり、ロッドの根元部は火
炎内に隠れフレームロッド電流は発生しなくなる。この
ことにより、正常燃焼状態と不完全燃焼状態を確実に判
断することができる。According to the present invention, with the above-described structure, the relationship between the root portion of the rod and the flame of the flame detecting device is that the cooling air from the air introduction hole blows into the root portion of the rod during normal combustion, and the flame is inside the burner. It deforms to the side and the root part of the rod is exposed outside the flame. Also, in the incomplete combustion state, the blowing of cooling air from the air introduction hole is reduced, the flame is deformed from directly above to the heat shield plate side, the root of the rod is hidden in the flame, and the frame rod current is It will not occur. This makes it possible to reliably determine the normal combustion state and the incomplete combustion state.
【００１０】[0010]
【実施例】以下、本発明の実施例を添付図面にもとづい
て説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.
【００１１】図３はこの種の燃焼装置の全体構成を示
し、図４はプロパンガスが燃焼した場合の、火炎の陽イ
オン濃度分布を示している。FIG. 3 shows the overall structure of this type of combustion apparatus, and FIG. 4 shows the cation concentration distribution of the flame when propane gas is burned.
【００１２】第１の実施例を図１，図２に基づいて説明
する。図１，図２の（ａ）は、火炎検出装置７と火炎の
形状（燃焼量大の場合の火炎，燃焼量小の場合の火炎）
を示す正面図、図１，図２の（ｂ）は、火炎検出装置７
のロッド１５と火炎の形状（燃焼量大の場合の火炎，燃
焼量小の場合の火炎）を示す側面図である。火炎検出装
置７はロッド１５とこのロッド１５を電気的に絶縁する
碍子１４から成り、ロッド１５の先端部Ａ0 は上方に曲
げてある。バーナケース１６とバーナ１間に遮熱プレー
ト１７を設け、その間を冷却空気Ｃ0 が通る。碍子１４
が貫通する遮熱プレート１７の下部には空気導入孔１８
が設けてあり、冷却空気Ｃ0 の一部はバーナ１内に吹き
込む。バーナ１の炎孔１ａは遮熱プレート１７側の端部
は炎孔閉塞部１ｂにより閉塞されている。碍子１４の碍
子先端部１４ａは炎孔閉塞部１ｂより炎孔１ａ内に突出
（ｌ0 ）している。A first embodiment will be described with reference to FIGS. 1 and 2 (a), the flame detection device 7 and the shape of the flame (flame when the combustion amount is large, flame when the combustion amount is small).
2B is a front view showing the flame detection device 7 shown in FIG.
15 is a side view showing the rod 15 and the shape of the flame (flame when the combustion amount is large, flame when the combustion amount is small). The flame detection device 7 is composed of a rod 15 and an insulator 14 that electrically insulates the rod 15, and a tip portion A 0 of the rod 15 is bent upward. A heat shield plate 17 is provided between the burner case 16 and the burner 1, and cooling air C 0 passes between them. Insulator 14
At the lower part of the heat shield plate 17 which penetrates
Is provided, and a part of the cooling air C 0 is blown into the burner 1. The flame hole 1a of the burner 1 is closed at its end on the heat shield plate 17 side by a flame hole closing portion 1b. The insulator tip portion 14a of the insulator 14 projects (l 0 ) from the flame hole closing portion 1b into the flame hole 1a.
【００１３】図１は、正常燃焼時のロッド１５と火炎の
関係を示し、ロッド１５の先端部Ａ 0 は正常燃焼時の燃
焼量最大の場合に火炎外に露出するよう設置してある。
ロッド１５の根元部Ｂ0 は、空気導入孔１８から吹き込
む冷却空気Ｃ0 により、火炎は炎孔閉塞部１ｂより内側
に変形しているため、火炎外に露出することになる。FIG. 1 shows the relationship between the rod 15 and the flame during normal combustion.
Showing the relationship, the tip A of the rod 15 0Is for normal combustion
It is installed so that it is exposed to the outside of the flame when the amount of burnt is maximum.
Root B of rod 150Is blown from the air introduction hole 18.
Cooling air C0Causes the flame to be inside the flame hole block 1b.
Since it has been transformed into, it will be exposed to the outside of the flame.
【００１４】図２は、不完全燃焼時のロッド１５と火炎
の関係を示し、ロッド１５の先端部Ａ0 は燃焼量の大小
にかかわらず火炎内に隠れる。ロッド１５の根元部Ｂ0
は、空気導入孔１８から吹き込む冷却空気Ｃ0 が減少す
るため、火炎が立ち、ロッド１５の根元部Ｂ0 は炎孔閉
塞部１ｂより炎孔１ａ内に突出（ｌ0 ）しているため火
炎内に隠れる。FIG. 2 shows the relationship between the rod 15 and the flame during incomplete combustion, and the tip A 0 of the rod 15 is hidden in the flame regardless of the amount of combustion. Root B 0 of rod 15
The cooling air C 0 blown from the air introduction hole 18 decreases, so that a flame rises and the root portion B 0 of the rod 15 projects (l 0 ) into the flame hole 1a from the flame hole closing portion 1b. Hide inside.
【００１５】上記構成において、碍子１４と遮熱プレー
ト１７間に設けた空気導入孔１８からバーナ１内に吹き
込む冷却空気Ｃ0 の一部がバーナ１内に吹き込み、ロッ
ド１５の根元部Ｂ0 付近の火炎形状に大きな影響を与え
る。正常燃焼時にはロッド１５の根元部Ｂ0 は火炎外に
露出し、フレームロッド電流を発生する。不完全燃焼時
にはロッド１５の根元部Ｂ0 は火炎内に隠れフレームロ
ッド電流は発生しない。In the above structure, a part of the cooling air C 0 blown into the burner 1 through the air introduction hole 18 provided between the insulator 14 and the heat shield plate 17 blows into the burner 1 and the vicinity of the root B 0 of the rod 15 is increased. It greatly affects the flame shape of. At the time of normal combustion, the root portion B 0 of the rod 15 is exposed to the outside of the flame and a flame rod current is generated. At incomplete combustion, the root portion B 0 of the rod 15 does not generate a hidden flame rod current in the flame.
【００１６】図５は、正常燃焼状態から不完全燃焼状態
になる過程の、フレームロッド電流値とＣＯ濃度（給気
及び排気経路の閉塞度合い）を示すグラフである。本発
明の燃焼装置と、従来の構成の燃焼装置の、給気及び排
気経路の閉塞度合いによるフレームロッド電流の変化を
示し、給気及び排気経路の閉塞度合いを増していくと、
従来の構成の場合はＪＩＳ燃焼不良判定ポイント（理論
乾燥燃焼ガス中のＣＯ濃度＝０．２８％以下）を越えて
も、フレームロッド電流は火炎検出しきい値以下にはな
らず、正常燃焼していると判断してしまうが、本発明の
燃焼装置は上記の構成と作用により、給気及び排気経路
の閉塞度合いを増していくと、ＪＩＳ燃焼不良判定ポイ
ントを越える前にフレームロッド電流は火炎検出しきい
値以下になり、安全に燃焼装置を停止させることができ
る。FIG. 5 is a graph showing the flame rod current value and CO concentration (degree of blockage of the air supply and exhaust paths) in the process of changing from the normal combustion state to the incomplete combustion state. Combustion device of the present invention, and the combustion device of the conventional configuration, showing the change in the flame rod current due to the degree of blockage of the air supply and exhaust passage, increasing the degree of blockage of the air supply and exhaust passage,
In the case of the conventional configuration, the flame rod current does not fall below the flame detection threshold even if the JIS combustion failure judgment point (CO concentration in theoretical dry combustion gas = 0.28% or less) is exceeded, and normal combustion occurs. However, if the combustion device of the present invention increases the degree of obstruction of the air supply and exhaust passages due to the above-described configuration and operation, the flame rod current will increase in flame before the JIS combustion failure determination point is exceeded. It becomes below the detection threshold, and the combustion device can be stopped safely.
【００１７】次に本発明の第２の実施例を図１，図２を
用いて説明する。図２において、不完全燃焼時の動作及
び効果については、第１の実施例と同一である。図１に
おいて前記実施例と相違する点は、遮熱プレート１７よ
りバーナ１内に挿入している部分の碍子１４は段付き状
に構成していることにあり、この構成によれば、碍子１
４がバーナ１の火炎に加熱される度合いが減少し、碍子
１４を冷却する冷却空気Ｃ0 の量を減少させることがで
き、代わりに、空気導入孔１８に流入する空気を増加さ
せることができるためロッド１５の根元部Ｂ0 部の火炎
形状を大きく変化させることができ、正常燃焼時と不完
全燃焼時のフレームロッド電流値の変化量が大きくとれ
るという効果がある。Next, a second embodiment of the present invention will be described with reference to FIGS. In FIG. 2, the operation and effect at the time of incomplete combustion are the same as those in the first embodiment. 1 is different from the above embodiment in that the portion of the insulator 14 inserted into the burner 1 from the heat shield plate 17 has a stepped structure. According to this configuration, the insulator 1
The degree to which 4 is heated by the flame of the burner 1 is reduced, the amount of cooling air C 0 that cools the insulator 14 can be reduced, and instead, the air flowing into the air introduction hole 18 can be increased. Therefore, the flame shape of the root portion B 0 of the rod 15 can be greatly changed, and the amount of change in the flame rod current value during normal combustion and incomplete combustion can be large.
【００１８】次に本発明の第３の実施例を図６，図７を
用いて説明する。図７において、不完全燃焼時の動作及
び効果については、第１の実施例と同一である。図６に
おいて前記実施例と相違する点は、遮熱プレート１７よ
りバーナ１内に挿入されている碍子１４の下部の形状
を、溝状にした空気導入孔１８にある。この構成によれ
ば、冷却空気Ｃ0 をロッド１５の根元部Ｂ0 に的確に導
くことができ、空気導入孔１８に導く冷却空気Ｃ0 は少
量でよい。また、空気導入孔１８に流れる冷却空気Ｃ0
が減少した分、本来の目的であるバーナケース１６と碍
子１４を、冷却するために冷却空気Ｃ0 を多く使用でき
るという効果がある。Next, a third embodiment of the present invention will be described with reference to FIGS. In FIG. 7, the operation and effect at the time of incomplete combustion are the same as those in the first embodiment. 6 is different from the above-described embodiment in that the lower portion of the insulator 14 inserted into the burner 1 from the heat shield plate 17 has a groove-like air introduction hole 18. According to this configuration, it is possible to direct the cooling air C 0 accurately to root portion B 0 of the rod 15, the cooling air C 0 which leads to the air inlet holes 18 may be a small amount. Further, the cooling air C 0 flowing through the air introduction hole 18
As a result, the cooling air C 0 can be used more for cooling the burner case 16 and the insulator 14, which are the original purpose.
【００１９】次に本発明の第４の実施例を図８，図９を
用いて説明する。図９において、不完全燃焼時の動作及
び効果については、第１の実施例と同一である。図８に
おいて前記実施例と相違する点は、遮熱プレート１７に
バーナケース１６と遮熱プレート１７間を流れる冷却空
気Ｃ0 の量を制限できる空気制限部１７ａ設けたことに
ある。この構成によれば、遮熱プレート１７と碍子１４
間に設けた空気導入孔１８に、効率よく冷却空気Ｃ0 を
導くことができるという効果がある。Next, a fourth embodiment of the present invention will be described with reference to FIGS. In FIG. 9, the operation and effect at the time of incomplete combustion are the same as those in the first embodiment. 8 is different from the above embodiment in that the heat shield plate 17 is provided with an air restricting portion 17a capable of restricting the amount of cooling air C 0 flowing between the burner case 16 and the heat shield plate 17. According to this configuration, the heat shield plate 17 and the insulator 14
There is an effect that the cooling air C 0 can be efficiently guided to the air introduction hole 18 provided therebetween.
【００２０】[0020]
【発明の効果】以上のように本発明の燃焼装置によれ
ば、次の効果が得られる。 （１）火炎検出装置のロッドの根元部に冷却空気を吹き
込む構成としているので、正常燃焼時にはロッドの根元
部は火炎外に露出し、また、給気及び排気経路が閉塞さ
れた場合の不完全燃焼時において、冷却空気が減少しロ
ッドの根元部は火炎内に隠れ、不完全燃焼時のフレーム
ロッド電流値は急激に低下する。このことにより、正常
燃焼と不完全燃焼を正確に判断でき、ＪＩＳ燃焼不良判
定ポイント以前に正確、且つ安全に燃焼装置を停止させ
ることができる。 （２）碍子先端部を段付き状に構成しているので、遮熱
プレートよりバーナ内に挿入している碍子が、火炎によ
り加熱されることを軽減でき、碍子を冷却するための冷
却空気を減少させることができる。このことにより、ロ
ッドの根元部に吹き込む空気を増加させることができ、
正常燃焼時と不完全燃焼時の火炎の形状変化を大きくで
き、不完全燃焼状態を確実に判断することができる。 （３）遮熱プレートよりバーナ内に挿入している碍子の
先端部を溝状にしているので、ロッドの根元部に確実、
且つ効率的に冷却空気を導くことができる。このことに
より、正常燃焼時と不完全燃焼時の火炎の形状変化を確
実に発生させることができ、不完全燃焼状態を確実に判
断することができる。 （４）バーナケースと遮熱プレート間を流れる冷却空気
の量を制限できる空気制限部を遮熱プレートに設けてい
るので、正常燃焼時にバーナケースと遮熱プレート間を
流れる冷却空気の量（圧力）が少ない場合においても、
空気導入孔より吹き込む冷却空気を確保することがで
き、ロッドの根元部に確実に冷却空気を導くことができ
る。したがって正常燃焼時と不完全燃焼時の火炎の形状
変化を発生させることができ、不完全燃焼状態を確実に
判断することができる。As described above, according to the combustion apparatus of the present invention, the following effects can be obtained. (1) Since the cooling air is blown into the root portion of the rod of the flame detection device, the root portion of the rod is exposed to the outside of the flame during normal combustion, and incomplete when the air supply and exhaust paths are blocked. During combustion, the cooling air decreases, the root of the rod is hidden in the flame, and the flame rod current value during incomplete combustion drops sharply. As a result, normal combustion and incomplete combustion can be accurately determined, and the combustion device can be stopped accurately and safely before the JIS combustion failure determination point. (2) Since the tip of the insulator is formed in a stepped shape, the insulator inserted into the burner from the heat shield plate can be prevented from being heated by the flame, and the cooling air for cooling the insulator can be reduced. Can be reduced. By this, it is possible to increase the air blown into the root of the rod,
The change in flame shape between normal combustion and incomplete combustion can be increased, and the incomplete combustion state can be reliably determined. (3) Since the tip of the insulator inserted into the burner from the heat shield plate is grooved, it can be securely attached to the root of the rod.
In addition, the cooling air can be guided efficiently. As a result, it is possible to reliably generate a change in the flame shape during normal combustion and incomplete combustion, and to reliably determine the incomplete combustion state. (4) Since the heat shield plate is provided with an air restriction portion that can limit the amount of cooling air that flows between the burner case and the heat shield plate, the amount of cooling air (pressure) that flows between the burner case and the heat shield plate during normal combustion. ) Is small,
The cooling air blown from the air introduction hole can be secured, and the cooling air can be reliably guided to the root portion of the rod. Therefore, a change in the shape of the flame can be generated between normal combustion and incomplete combustion, and the incomplete combustion state can be reliably determined.
【図１】（ａ）本発明の第１，第２の実施例の燃焼装置
の正常燃焼状態において、燃焼量が大の場合及び燃焼量
が小の場合の火炎検出装置と火炎の関係を示す断面図 （ｂ）上記図１（ａ）の側面図FIG. 1 (a) shows a relationship between a flame detection device and a flame when the combustion amount is large and the combustion amount is small in a normal combustion state of the combustion devices of the first and second embodiments of the present invention. Sectional view (b) Side view of FIG. 1 (a)
【図２】（ａ）同燃焼装置の不完全燃焼状態において、
燃焼量が大の場合及び燃焼量が小の場合の火炎検出装置
と火炎の関係を示す断面図 （ｂ）上記図２（ａ）の側面図FIG. 2 (a) In the incomplete combustion state of the same combustion device,
Sectional drawing which shows the flame detection apparatus and flame relationship when the amount of combustion is large and when the amount of combustion is small. (B) Side view of the above-mentioned FIG. 2 (a)
【図３】同燃焼装置又は従来の燃焼装置の全体を示す構
成図FIG. 3 is a configuration diagram showing the entire combustion device or a conventional combustion device.
【図４】プロパン−空気火炎の陽イオン濃度分布を示し
た特性図FIG. 4 is a characteristic diagram showing a cation concentration distribution of a propane-air flame.
【図５】同燃焼装置と従来の燃焼装置のＣＯ濃度（給気
及び排気経路の閉塞度合い）とフレームロッド電流の関
係を示す相関図FIG. 5 is a correlation diagram showing the relationship between the CO concentration (degree of obstruction of the air supply and exhaust paths) and the flame rod current of the same combustion device and the conventional combustion device.
【図６】（ａ）本発明の第３の実施例の燃焼装置の正常
燃焼状態において、燃焼量が大の場合及び燃焼量が小の
場合の火炎検出装置と火炎の関係を示す断面図 （ｂ）上記図６（ａ）の側面図FIG. 6 (a) is a sectional view showing the relationship between the flame detection device and the flame when the combustion amount is large and the combustion amount is small in the normal combustion state of the combustion device according to the third embodiment of the present invention. b) Side view of FIG. 6 (a)
【図７】（ａ）同燃焼装置の不完全燃焼状態において、
燃焼量が大の場合及び燃焼量が小の場合の火炎検出装置
と火炎の関係を示す断面図 （ｂ）上記図７（ａ）の側面図FIG. 7 (a) shows an incomplete combustion state of the combustion apparatus,
Sectional drawing which shows the flame detection apparatus and flame relationship when the amount of combustion is large and when the amount of combustion is small (b) Side view of the above-mentioned FIG. 7 (a)
【図８】（ａ）本発明の第４の実施例の燃焼装置の正常
燃焼状態において、燃焼量が大の場合及び燃焼量が小の
場合の火炎検出装置と火炎の関係を示す断面図 （ｂ）上記図８（ａ）の側面図FIG. 8A is a cross-sectional view showing the relationship between the flame detection device and the flame when the combustion amount is large and the combustion amount is small in the normal combustion state of the combustion device according to the fourth embodiment of the present invention. b) Side view of FIG. 8 (a)
【図９】（ａ）同燃焼装置の不完全燃焼状態において、
燃焼量が大の場合及び燃焼量が小の場合の火炎検出装置
と火炎の関係を示す断面図 （ｂ）上記図９（ａ）の側面図FIG. 9 (a) shows an incomplete combustion state of the same combustion device.
Sectional drawing which shows the flame detection apparatus and the relationship of a flame when the amount of combustion is large and when the amount of combustion is small (b) The side view of the above-mentioned FIG. 9 (a)
【図１０】（ａ）従来の燃焼装置の正常燃焼状態におい
て、燃焼量が大の場合及び燃焼量が小の場合の火炎検出
装置と火炎の関係を示す断面図 （ｂ）上記図１０（ａ）の側面図10A is a cross-sectional view showing the relationship between the flame detection device and the flame when the combustion amount is large and the combustion amount is small in the normal combustion state of the conventional combustion device. FIG. ) Side view
【図１１】（ａ）従来の燃焼装置の不完全燃焼状態にお
いて、燃焼量が大の場合及び燃焼量が小の場合の火炎検
出装置と火炎の関係を示す断面図 （ｂ）上記図１１（ａ）の側面図11A is a sectional view showing the relationship between the flame detection device and the flame when the combustion amount is large and when the combustion amount is small in the incomplete combustion state of the conventional combustion device. FIG. a) Side view
１ バーナ １ａ 炎孔 １ｂ 炎孔閉塞部 ２ ファン ７ 火炎検出装置 １４ 碍子 １４ａ 碍子突出部 １５ ロッド １６ バーナケース １７ 遮熱プレート １７ａ 空気制限部 １８ 空気導入孔 DESCRIPTION OF SYMBOLS 1 burner 1a flame hole 1b flame hole closing part 2 fan 7 flame detection device 14 insulator 14a insulator protrusion 15 rod 16 burner case 17 heat shield plate 17a air restriction part 18 air introduction hole
Claims (4)
と、前記バーナに空気を送り込むファンと、前記バーナ
に燃料を送り込む燃料供給ブロックと、前記バーナで発
生した熱を水に伝達させる熱交換器と、前記バーナで発
生し、前記熱交換器で熱交換された排気ガスを排出する
トップと、前記バーナの火炎状態を検出する火炎検出装
置と、前記バーナの側方に設置した遮熱プレートと、前
記バーナの炎孔の端部を閉塞した炎孔閉塞部とを備え、
前記火炎検出装置は、火炎を検出するロッド部と碍子で
構成し、前記碍子が挿入された前記遮熱プレートの下部
に空気導入孔を設け、前記碍子の突出部は前記バーナの
炎孔閉塞部より内側に突出してなる燃焼装置。1. A burner for mixing and burning fuel with air, a fan for sending air to the burner, a fuel supply block for sending fuel to the burner, and a heat exchange for transferring heat generated in the burner to water. , A top for discharging exhaust gas generated in the burner and heat-exchanged in the heat exchanger, a flame detection device for detecting the flame state of the burner, and a heat shield plate installed on the side of the burner. And a flame hole closing portion that closes the end portion of the flame hole of the burner,
The flame detection device comprises a rod portion for detecting flame and an insulator, an air introduction hole is provided in a lower portion of the heat shield plate in which the insulator is inserted, and a protruding portion of the insulator is a flame hole closing portion of the burner. A combustion device that projects further inward.
構成した請求項１記載の燃焼装置。2. A combustion device according to claim 1, wherein the insulator of the flame detecting device has a stepped projection.
の空気導入孔を設けた請求項１記載の燃焼装置。3. The combustion device according to claim 1, wherein a groove-shaped air introduction hole is provided in the lower portion of the projecting portion of the insulator of the flame detection device.
冷却空気の流れを制限する空気制限部を前記遮熱プレー
トに設けた請求項１記載の燃焼装置。4. The combustion device according to claim 1, wherein the heat shield plate is provided with an air restriction portion for restricting a flow of cooling air passing between the burner case and the heat shield plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05303998A JP3079864B2 (en) | 1993-12-03 | 1993-12-03 | Combustion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05303998A JP3079864B2 (en) | 1993-12-03 | 1993-12-03 | Combustion equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07158843A true JPH07158843A (en) | 1995-06-20 |
| JP3079864B2 JP3079864B2 (en) | 2000-08-21 |
Family
ID=17927825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05303998A Expired - Fee Related JP3079864B2 (en) | 1993-12-03 | 1993-12-03 | Combustion equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3079864B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011137590A (en) * | 2009-12-28 | 2011-07-14 | Paloma Co Ltd | Combustion device |
| JP2016133276A (en) * | 2015-01-21 | 2016-07-25 | リンナイ株式会社 | Electrode component for combustion device |
-
1993
- 1993-12-03 JP JP05303998A patent/JP3079864B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011137590A (en) * | 2009-12-28 | 2011-07-14 | Paloma Co Ltd | Combustion device |
| JP2016133276A (en) * | 2015-01-21 | 2016-07-25 | リンナイ株式会社 | Electrode component for combustion device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3079864B2 (en) | 2000-08-21 |
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