JP2003294211A - Combustor - Google Patents
CombustorInfo
- Publication number
- JP2003294211A JP2003294211A JP2002098941A JP2002098941A JP2003294211A JP 2003294211 A JP2003294211 A JP 2003294211A JP 2002098941 A JP2002098941 A JP 2002098941A JP 2002098941 A JP2002098941 A JP 2002098941A JP 2003294211 A JP2003294211 A JP 2003294211A
- Authority
- JP
- Japan
- Prior art keywords
- combustor
- liquid fuel
- axis
- gas
- combustion
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Combustion Of Fluid Fuel (AREA)
- Fuel Cell (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、液体燃料とガスを
混焼するための燃焼器に関する。特には混焼用バーナー
に関する。TECHNICAL FIELD The present invention relates to a combustor for co-firing liquid fuel and gas. Particularly, it relates to a burner for mixed firing.
【０００２】[0002]
【従来の技術】従来の混焼用バーナーの多くは、大型で
しかも構造が複雑なものが殆どであった。大型になる要
因として、火炎を小さくできないために炉を小さくでき
ず、その結果燃焼器全体の大きさが小型化できないとい
う点があった。この点を含め、従来から小型化の努力が
ある程度なされてきてはいるものの、特に燃料電池シス
テム等の用途においては、さらなる機器の小型化が望ま
れていた。2. Description of the Related Art Most of conventional burners for co-firing have a large size and a complicated structure. The reason for the increase in size is that the flame cannot be made smaller, so the furnace cannot be made smaller, and as a result, the overall size of the combustor cannot be made smaller. Although some efforts have been made to reduce the size of the device including this point, further downsizing of the device has been desired especially in the applications such as the fuel cell system.
【０００３】また、低コスト化は一般的に要求されるこ
とだが、特に燃料電池システムの普及を図るためには、
その構成機器の低コスト化が強く求められており、燃焼
器についても低コスト化を一層進める必要がある。Further, cost reduction is generally required, but in order to popularize the fuel cell system in particular,
There is a strong demand for cost reduction of the constituent devices, and it is necessary to further reduce the cost of the combustor.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、複雑な構造
を採らずに、混焼用燃焼器の燃焼火炎を短く、細くし、
燃焼器を小型化することを目的とする。あわせて、低コ
ストな燃焼器を提供することを目的とする。SUMMARY OF THE INVENTION According to the present invention, the combustion flame of a co-firing combustor is made short and thin without adopting a complicated structure.
The purpose is to reduce the size of the combustor. In addition, the object is to provide a low-cost combustor.
【０００５】[0005]
【課題を解決するための手段】本発明は、液体燃料バー
ナーの周囲にガスバーナーが設けられた混焼用の燃焼器
において、（１）該液体燃料バーナーの液体燃料噴霧軸
と燃焼用空気の噴出軸とが４５〜９０度の角度θａで交
わり、（２）該液体燃料バーナーの液体燃料噴霧軸と該
ガスバーナーのガス燃料噴出軸とが４５〜９０度の角度
θｇで交わり、（３）二段の燃焼用絞りを有することを
特徴とする混焼用の燃焼器である。SUMMARY OF THE INVENTION The present invention provides a combustor for mixed combustion in which a gas burner is provided around a liquid fuel burner, and (1) a liquid fuel spray shaft of the liquid fuel burner and jetting of combustion air. The axis intersects at an angle θa of 45 to 90 degrees, (2) the liquid fuel spray axis of the liquid fuel burner intersects with the gas fuel jet axis of the gas burner at an angle θg of 45 to 90 degrees, and (3) two A combustor for co-firing, characterized in that it has a staged throttle for combustion.
【０００６】上記（１）の構成により、灯油保炎器（ス
タビライザー）によって保炎している火炎に４５〜９０
度の角度で燃焼空気を当てることができ、燃焼空気の流
れによって火炎の広がりを抑制することができる。従っ
て、火炎の広がりを抑え、火炎を短くすることができ
る。With the configuration of (1) above, the flame held by the kerosene flame stabilizer (stabilizer) is contained in the range of 45 to 90.
The combustion air can be applied at an angle of degrees, and the spread of the flame can be suppressed by the flow of the combustion air. Therefore, the spread of the flame can be suppressed and the flame can be shortened.
【０００７】上記（２）の構成により、火炎に４５〜９
０度の角度で周囲から中央部に向けてガスを噴出させ、
混合を促進し、もって燃焼を促進して火炎を短くすると
ともに、ガスの噴出流により火炎の広がりを抑えてい
る。With the construction of the above (2), a flame of 45 to 9
Gas is ejected from the periphery toward the center at an angle of 0 degree,
The mixing is promoted, combustion is promoted to shorten the flame, and the spread of the flame is suppressed by the jet flow of gas.
【０００８】上記（３）の構成により、（１）および
（２）で抑制された後になお広がろうとする火炎につい
て、一段目の絞りでその広がりを抑制し、さらに二段目
の絞りでその広がりを限りなく抑制し、また、流れの向
きを変えることで混合をさらに促進して燃焼を促進し、
その結果、短炎化している。With the configuration of (3) above, with respect to the flame which is suppressed in (1) and (2) and then spreads, its spread is suppressed by the first stage throttle, and further by the second stage throttle. Limiting the spread infinitely, and changing the flow direction further promotes mixing and promotes combustion,
As a result, the flame has become shorter.
【０００９】[0009]
【発明の実施の形態】液体燃料としては、圧力噴霧の容
易性の観点から、沸点が１００℃以上であることが好ま
しく、すすの発生を抑えて本発明の火炎短縮効果を最大
限に引き出す観点から、沸点が３５０℃以下であること
が好ましい。例えば灯油が好適である。BEST MODE FOR CARRYING OUT THE INVENTION The liquid fuel preferably has a boiling point of 100 ° C. or higher from the viewpoint of ease of pressure spraying, and from the viewpoint of suppressing the generation of soot and maximizing the flame shortening effect of the present invention. Therefore, the boiling point is preferably 350 ° C. or lower. For example, kerosene is suitable.
【００１０】ガス燃料としては、燃焼しうるガスであれ
ば用いることができ、例えば都市ガスや石油ガス、また
燃料電池のアノード排ガスなどの燃料極系ラインのガス
を用いることもできる。使用するガスによって発熱量に
差があるが、発熱量に応じてガス噴出口のサイズなどを
適宜設計し、好適な燃焼状態を実現することができる。As the gas fuel, any combustible gas can be used. For example, city gas or petroleum gas, or gas in the fuel electrode system line such as anode exhaust gas of a fuel cell can also be used. Although the amount of heat generated varies depending on the gas used, it is possible to realize a suitable combustion state by appropriately designing the size of the gas ejection port or the like according to the amount of heat generated.
【００１１】以下、図面を用いて本発明の一実施形態に
ついて説明する。図１および図２は、それぞれ本発明の
燃焼器の一実施形態を示す側断面図および正面図であ
る。図３は、液体燃料の噴霧軸と燃焼用空気の噴出軸お
よびガス燃料の噴出軸の位置関係を説明するための模式
図であり、（ａ）が燃焼器側断面に係る模式図、（ｂ）
が燃料器正面（スタビライザー部）に係る模式図であ
る。An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 are a side sectional view and a front view, respectively, showing an embodiment of a combustor of the present invention. FIG. 3 is a schematic diagram for explaining the positional relationship between the spray axis of the liquid fuel, the jet axis of the combustion air, and the jet axis of the gas fuel, (a) is a schematic diagram relating to the combustor side cross section, (b) )
[Fig. 3] is a schematic view of a front surface (stabilizer portion) of the fuel device.
【００１２】ここでは液体燃料として灯油を用いてお
り、ガス燃料としては高分子個体電解質型燃料電池のア
ノード排ガスを用いている。このように、液体燃料を使
用する燃料電池システムにおいて、当該液体燃料とアノ
ード排ガスとを混焼させる燃焼器を採用することは好ま
しい。なぜなら、燃料電池のアノード排ガスは燃料電池
の燃料利用率等によって発熱量が変化するが、液体燃料
と混焼することによって燃焼を安定させることができ、
その燃焼用液体燃料も燃料電池の燃料と同じであるた
め、燃料供給のための設備を兼用することができること
から、省スペース化、省コスト化を図ることができ、し
かも本発明の燃焼器は小型、低コストであるため、燃料
電池システムを小型化、低コスト化するのに有効だから
である。Here, kerosene is used as the liquid fuel, and the anode exhaust gas of the solid polymer electrolyte fuel cell is used as the gas fuel. As described above, in the fuel cell system using the liquid fuel, it is preferable to employ the combustor for co-firing the liquid fuel and the anode exhaust gas. Because the anode exhaust gas of the fuel cell has a calorific value that changes depending on the fuel utilization rate of the fuel cell, etc., but combustion can be stabilized by cofiring with the liquid fuel,
Since the liquid fuel for combustion is also the same as the fuel of the fuel cell, it can also serve as a facility for supplying fuel, so that space saving and cost saving can be achieved, and the combustor of the present invention is Because it is small and low-cost, it is effective in reducing the size and cost of the fuel cell system.
【００１３】ここに示す燃焼器は、燃焼用空気および灯
油の供給量を調節する手段を有する、最大負荷から一定
の部分負荷まで連続的に変化させることのできる比例燃
焼器であるが、本発明はこれに限らず、一定負荷の運転
のみに使用される燃焼器も含む。The combustor shown here is a proportional combustor capable of continuously changing from a maximum load to a constant partial load, which has means for adjusting the supply amounts of combustion air and kerosene. Is not limited to this, and includes a combustor used only for constant load operation.
【００１４】燃焼用空気は不図示の送風機によってウイ
ンドボックス１に送り込まれ、矢印Ａで示す燃焼用空気
（以下、一次空気という。）と矢印Ｂで示す燃焼用空気
（以下、二次空気という。）に分配される。The combustion air is sent to the wind box 1 by a blower (not shown), and the combustion air indicated by arrow A (hereinafter referred to as primary air) and the combustion air indicated by arrow B (hereinafter referred to as secondary air). ).
【００１５】灯油はバーナー中央部に設けられた灯油用
ノズルパイプ５に送り込まれ、油用ノズル６により矢印
Ｃの方向に噴霧される。スタビライザー７に設けられた
多数の一次空気噴出口７ａから噴出する一次空気によっ
て油用ノズルから噴霧された灯油が燃焼するが、このと
き矢印Ｄで示す一次空気の噴出軸と、矢印Ｃで示される
灯油の噴霧軸とは４５〜９０度の角度で交わる。すなわ
ち、図３（ａ）、（ｂ）に示すように、液体燃料噴霧軸
（矢印Ｃを含む軸）と燃焼用一次空気の噴出軸（矢印Ｄ
を含む軸）とのなす角度θａ1が４５〜９０度の角度を
なして交わり、一次空気の流れにより、噴霧された灯油
と空気との混合が促進され、燃焼が促進されると同時
に、噴霧された際に広がろうとする灯油が中央部に押し
戻され、火炎の広がりが抑制できる。二つの流体の混合
を短い距離で促進するという観点から角度θａ1は６０
度以上が好ましく、８０度以上がより好ましい。また二
つの流体が対向流となることにより発生する圧力損失を
抑えるという観点から角度θａ1は９０度以下とする。Kerosene is sent to a kerosene nozzle pipe 5 provided at the center of the burner and sprayed in the direction of arrow C by an oil nozzle 6. The kerosene sprayed from the oil nozzle is burned by the primary air ejected from a large number of primary air ejection ports 7a provided in the stabilizer 7. At this time, the ejection axis of the primary air indicated by the arrow D and the arrow C are indicated. It intersects with the kerosene spray axis at an angle of 45 to 90 degrees. That is, as shown in FIGS. 3A and 3B, the liquid fuel spray axis (the axis including the arrow C) and the ejection axis of the combustion primary air (the arrow D).
The angle θa 1 formed with the axis (including the axis) forms an angle of 45 to 90 degrees, and the flow of primary air promotes the mixing of the atomized kerosene with the air, which promotes combustion and, at the same time, the atomization. The kerosene, which is about to spread when pushed, is pushed back to the center, and the spread of flame can be suppressed. The angle θa 1 is 60 from the viewpoint of promoting the mixing of the two fluids in a short distance.
The degree is preferably not less than 80 degrees, more preferably not less than 80 degrees. Further, the angle θa 1 is set to 90 degrees or less from the viewpoint of suppressing the pressure loss that occurs when the two fluids are in counterflow.
【００１６】液体燃料噴霧軸は、噴霧口から噴霧される
液体燃料の滴が形成する円錐形の噴霧流の中心線を意味
し、ここでは油用ノズル６から噴霧される灯油の噴霧流
の中心線を意味する。The liquid fuel spray axis means the center line of the conical spray flow formed by the droplets of the liquid fuel sprayed from the spray port, and here, the center of the spray flow of kerosene sprayed from the oil nozzle 6. Means a line.
【００１７】また、燃焼用一次空気等のガスについての
噴出軸は、当該ガスの噴出口から流出するガス流の中心
線を意味する。Further, the ejection axis for the gas such as the primary air for combustion means the center line of the gas flow flowing out from the ejection port of the gas.
【００１８】なお、上記のように、一次空気および二次
空気が存在する形態において、液体燃料噴霧軸と燃焼用
空気の噴出軸とが４５〜９０度の角度θａで交わると
は、液体燃料噴霧軸と燃焼用一次空気の噴出軸とがなす
角度θａ1と、液体燃料噴霧軸と燃焼用二次空気の噴出
軸とがなす角度θａ2との両者が４５〜９０度で交わる
ことを意味する。As described above, in the form in which the primary air and the secondary air are present, the fact that the liquid fuel spray axis and the jet axis of the combustion air intersect at an angle θa of 45 to 90 degrees means that the liquid fuel spray is It means that the angle θa 1 formed by the axis and the jetting axis of the primary air for combustion and the angle θa 2 formed by the jetting axis of the liquid fuel spray and the secondary air for combustion intersect at 45 to 90 degrees. .
【００１９】スタビライザーの出口においては、ガスバ
ーナ用ガスパイプ３、ガスパイプに設けられたガス燃料
噴出口３ａを経てガス燃料が供給され、スタビライザー
から出てくる一次空気と混合され、さらにガス燃焼用の
保炎器コンバスタ４に設けられた多数の二次空気噴出口
４ａから噴出する二次空気によって燃焼する。このと
き、矢印Ｅを含む軸であるガス燃料の噴出軸は、灯油用
ノズルの灯油噴霧軸（矢印Ｃを含む軸）とは４５〜９０
度の角度で交わる。すなわち、図３（ａ）に示すよう
に、液体燃料噴霧軸（矢印Ｃを含む軸）とガス燃料の噴
出軸（矢印Ｅを含む軸）とのなす角度θｇが４５〜９０
度の角度をなして交わり、これによって一次空気とガス
燃料の混合が促進され、火炎の広がりが抑制されるとと
もに短炎化が実現される。なお図示していないが、液体
燃料噴霧軸（矢印Ｃを含む軸）とガス燃料の噴出軸（矢
印Ｅを含む軸）との正面から見た位置関係は、図３
（ｂ）に示す場合と同様である。前記角度θａ1につい
て述べた理由と同様の理由から、θｇも６０度以上が好
ましく、８０度以上がより好ましく、また９０度以下と
する。At the outlet of the stabilizer, the gas fuel is supplied through the gas pipe 3 for the gas burner and the gas fuel injection port 3a provided in the gas pipe, mixed with the primary air discharged from the stabilizer, and further flame-holding for gas combustion. Combustion is performed by secondary air ejected from a large number of secondary air ejection ports 4a provided in the container combustor 4. At this time, the ejection axis of the gas fuel, which is the axis including the arrow E, is 45 to 90 with respect to the kerosene spray axis of the kerosene nozzle (the axis including the arrow C).
Intersect at an angle of degrees. That is, as shown in FIG. 3A, an angle θg formed by the liquid fuel spray axis (the axis including the arrow C) and the gas fuel ejection axis (the axis including the arrow E) is 45 to 90.
They intersect at an angle of degrees, which promotes the mixing of the primary air and the gas fuel, suppresses the spread of the flame, and shortens the flame. Although not shown, the positional relationship between the liquid fuel spray axis (the axis including the arrow C) and the jet axis of the gas fuel (the axis including the arrow E) when viewed from the front is shown in FIG.
This is similar to the case shown in (b). For the same reason as described for the angle θa 1 , θg is also preferably 60 degrees or more, more preferably 80 degrees or more, and 90 degrees or less.
【００２０】さらに、燃焼用二次空気の噴出軸（矢印Ｆ
を含む軸）と灯油噴霧軸（矢印Ｃを含む軸）とは、４５
〜９０度の角度（θａ2）で交わり、これによって一次
空気の場合と同様、二次空気と燃料と混合促進、火炎の
広がり防止、短炎化が実現される。なお図示していない
が、燃焼用二次空気の噴出軸（矢印Ｆを含む軸）と液体
燃料噴霧軸（矢印Ｃを含む軸）との正面から見た位置関
係は、図３（ｂ）に示す場合と同様である。また、前記
角度θａ1について述べた理由と同様の理由から、θａ2
も６０度以上が好ましく、８０度以上がより好ましく、
また９０度以下とする。Further, a secondary air jetting axis for combustion (arrow F
And the kerosene spray axis (the axis including the arrow C) is 45
They intersect at an angle (θa 2 ) of ˜90 degrees, which promotes mixing promotion of secondary air and fuel, prevention of flame spread, and shortening of flame as in the case of primary air. Although not shown, the positional relationship between the ejection axis of the secondary air for combustion (the axis including the arrow F) and the liquid fuel spray axis (the axis including the arrow C) as viewed from the front is shown in FIG. It is similar to the case shown. Further, for the same reason as described above for the angle θa 1 , θa 2
Is preferably 60 degrees or more, more preferably 80 degrees or more,
The angle is 90 degrees or less.
【００２１】本発明の燃焼器は、液体燃料およびガスの
混焼の燃焼保炎面の下流側に二段の絞りを有する。燃焼
用絞りは、燃焼流体（一部燃焼済みとなっていてもよい
燃料と空気との混合流体）流路の断面積をいったん細く
して再度広げる手段である。これにより流れを乱し、流
体の混合を促進することができる。スタビライザーの下
流に設けられた一段目絞り８は、スタビライザーによっ
て保炎している火炎の広がりをさらに抑え、一段目絞り
８の下流に設けられた二段目絞り９は、より一層火炎の
広がりを抑えている。The combustor of the present invention has a two-stage throttle downstream of the combustion flame holding surface for mixed combustion of liquid fuel and gas. The throttle for combustion is a means for once narrowing the cross-sectional area of the flow path of the combustion fluid (mixed fluid of fuel and air that may have been partially burned) and then expanding it again. This can disrupt the flow and promote fluid mixing. The first-stage throttle 8 provided downstream of the stabilizer further suppresses the spread of the flame holding the flame by the stabilizer, and the second-stage throttle 9 provided downstream of the first stage diaphragm 8 further spreads the flame. Hold down.
【００２２】ウインドボックス先端口に設けられたエア
ーコーン２はバーナー全体の覆いで、ここでは二次空気
の流路を形成し、バーナー先端の二段目絞り手前に二次
空気を導く。The air cone 2 provided at the front end of the wind box covers the entire burner, and forms a flow path for secondary air here, and guides the secondary air to the front side of the second stage throttle at the tip of the burner.
【００２３】図１および２に示した本発明に係る灯油バ
ーナーでは、燃焼用空気（一次、二次とも）の旋回流と
流路の急拡大によって保炎する従来技術に係るバーナー
に比べて、火炎の長さを三分の二以下に抑えることがで
きた。これに応じて燃焼器の大きさも小型化することが
できる。In the kerosene burner according to the present invention shown in FIGS. 1 and 2, as compared with the burner according to the prior art in which the flame is maintained by the swirling flow of combustion air (both primary and secondary) and the rapid expansion of the flow passage, We were able to reduce the length of the flame to less than two-thirds. Accordingly, the size of the combustor can be reduced.
【００２４】[0024]
【発明の効果】本発明により、従来より小型化された混
焼用燃焼器が提供された。この燃焼器では、燃焼火炎を
短く、細くすることが可能である。また、この燃焼器
は、構造が複雑でなく、小型であるため、従来の燃焼器
よりも低コスト化することができる。As described above, according to the present invention, a combustor for mixed combustion which is smaller than the conventional one is provided. With this combustor, the combustion flame can be made short and thin. In addition, this combustor is not complicated in structure and is small in size, so that the cost can be reduced as compared with the conventional combustor.
【図１】本発明の燃焼器の一実施形態を示す側断面図で
ある。FIG. 1 is a side sectional view showing an embodiment of a combustor of the present invention.
【図２】本発明の燃焼器の一実施形態を示す正面図であ
る。FIG. 2 is a front view showing an embodiment of a combustor of the present invention.
【図３】本発明の燃焼器の一実施形態につき、燃料及び
空気の流れ方向を示す模式図であり、（ａ）がその側断
面図、（ｂ）がスタビライザー部の正面図である。FIG. 3 is a schematic view showing a flow direction of fuel and air in one embodiment of a combustor of the present invention, (a) is a side sectional view thereof, and (b) is a front view of a stabilizer portion.
１ ウインドボックス
２ エアーコーン
３ ガスバーナ用ガスパイプ
３ａ ガス燃料噴出口
４ ガス燃焼用コンバスター
４ａ 通気穴
５ 灯油用ノズルパイプ
６ 油用ノズル
７ スタビライザー
７ａ 通気穴
８ 絞り（一段目）
９ 絞り（二段目）
Ａ 分配された一次空気の流れを示す矢印
Ｂ 分配された二次空気の流れを示す矢印
Ｃ 灯油噴霧方向を示す矢印
Ｄ 一次空気の噴出方向を示す矢印
Ｅ ガス燃料の噴出方向を示す矢印
Ｆ 二次空気の噴出方向を示す矢印
θａ1 液体燃料バーナーの液体燃料噴霧軸と燃焼用空
気（一次）の噴出軸となす角度
θａ2 液体燃料バーナーの液体燃料噴霧軸と燃焼用空
気（二次）の噴出軸となす角度
θｇ 液体燃料バーナーの液体燃料噴霧軸とガスバーナ
ーのガス燃料噴出軸とがなす角度1 Wind Box 2 Air Cone 3 Gas Burner Gas Pipe 3a Gas Fuel Jet 4 Gas Combustor Combustor 4a Vent Hole 5 Kerosene Nozzle Pipe 6 Oil Nozzle 7 Stabilizer 7a Vent Hole 8 Aperture (First Stage) 9 Aperture (Second Stage) ) A Arrow B indicating the flow of distributed primary air Arrow C indicating the flow of distributed secondary air Arrow C indicating the kerosene spray direction Arrow E indicating the jet direction of primary air Arrow F indicating the jet direction of gas fuel Arrow indicating the jetting direction of secondary air θa 1 Angle between liquid fuel spray axis of liquid fuel burner and jet axis of combustion air (primary) θa 2 Liquid fuel spray axis of liquid fuel burner and combustion air (secondary) Angle θg with the jet axis of the liquid fuel burner Angle formed by the liquid fuel spray axis of the liquid fuel burner and the gas fuel jet axis of the gas burner
フロントページの続き (72)発明者 坂本 義郎 神奈川県座間市相模が丘４−７ Ａ−125 (72)発明者 土屋 尚哉 神奈川県秦野市鶴巻1419−１ プランヴェ ール鶴巻616 Ｆターム(参考） 3K065 QC04 RA02 RB02 3K091 AA17 BB26 BB32 CC02 CC06 CC07 CC23 DD06 5H027 AA02 BA19 Continued front page (72) Inventor Yoshiro Sakamoto 4-7 Sagamigaoka, Zama City, Kanagawa Prefecture A-125 (72) Inventor Naoya Tsuchiya 1419-1 Tsurumaki Tsurumaki, Hadano, Kanagawa Prefecture Tsurumaki 616 F term (reference) 3K065 QC04 RA02 RB02 3K091 AA17 BB26 BB32 CC02 CC06 CC07 CC23 DD06 5H027 AA02 BA19
Claims (4)
が設けられた混焼用の燃焼器において、該液体燃料バー
ナーの液体燃料噴霧軸と燃焼用空気の噴出軸とが４５〜
９０度の角度θａで交わり、該液体燃料バーナーの液体
燃料噴霧軸と該ガスバーナーのガス燃料噴出軸とが４５
〜９０度の角度θｇで交わり、二段の燃焼用絞りを有す
ることを特徴とする混焼用の燃焼器。1. A combustor for co-firing in which a gas burner is provided around a liquid fuel burner, wherein the liquid fuel spray shaft and the combustion air jet shaft of the liquid fuel burner are 45 to 45.
They intersect at an angle θa of 90 degrees, and the liquid fuel spray axis of the liquid fuel burner and the gas fuel jet axis of the gas burner are 45 degrees.
A combustor for mixed combustion, which has two stages of combustion throttles that intersect at an angle θg of ˜90 degrees.
度である請求項１記載の燃焼器。2. The angles θa and θg are 80 to 90.
The combustor of claim 1 in degrees.
は２記載の燃焼器。3. The combustor according to claim 1, wherein the liquid fuel is kerosene.
ガスである請求項１〜３のいずれか一項記載の燃焼器。4. The combustor according to claim 1, wherein the gaseous fuel is anode exhaust gas of a fuel cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002098941A JP4022421B2 (en) | 2002-04-01 | 2002-04-01 | Combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002098941A JP4022421B2 (en) | 2002-04-01 | 2002-04-01 | Combustor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003294211A true JP2003294211A (en) | 2003-10-15 |
| JP4022421B2 JP4022421B2 (en) | 2007-12-19 |
Family
ID=29240691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002098941A Expired - Fee Related JP4022421B2 (en) | 2002-04-01 | 2002-04-01 | Combustor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4022421B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008039362A (en) * | 2006-08-10 | 2008-02-21 | Taiyo Nippon Sanso Corp | Burner, combustion method of powder combustibles, and melting and refining method of cold iron source |
-
2002
- 2002-04-01 JP JP2002098941A patent/JP4022421B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008039362A (en) * | 2006-08-10 | 2008-02-21 | Taiyo Nippon Sanso Corp | Burner, combustion method of powder combustibles, and melting and refining method of cold iron source |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4022421B2 (en) | 2007-12-19 |
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