JP3525266B2 - Combustion method for sulfur-containing fuel - Google Patents
Combustion method for sulfur-containing fuelInfo
- Publication number
- JP3525266B2 JP3525266B2 JP22498694A JP22498694A JP3525266B2 JP 3525266 B2 JP3525266 B2 JP 3525266B2 JP 22498694 A JP22498694 A JP 22498694A JP 22498694 A JP22498694 A JP 22498694A JP 3525266 B2 JP3525266 B2 JP 3525266B2
- Authority
- JP
- Japan
- Prior art keywords
- sulfur
- partial pressure
- burner
- water pipe
- combustion air
- 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 - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は、高濃度の硫黄を含有す
る燃料を燃焼させた場合に、排ガス中のＮＯｘを増加さ
せることなく、水管の腐食を防止する硫黄含有燃料の燃
焼方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for burning a sulfur-containing fuel which prevents corrosion of a water pipe without increasing NOx in exhaust gas when burning a fuel containing a high concentration of sulfur.
【０００２】[0002]
【従来の技術】石炭や重油等の化石燃料を使用するボイ
ラでは、燃焼によって窒素酸化物（以下、ＮＯｘとい
う）が発生することは周知である。このＮＯｘを低減す
る方法としては、燃焼の際発生するＮＯｘ量、すなわち
ＮＯｘ発生量そのものを低減する方法と、発生したＮＯ
ｘを窒素に還元して大気に放出する方法に大別される。
前者は高温かつ酸素濃度の高い状態で発生するサーマル
ＮＯｘを低減する方法で、低ＮＯｘバーナによる燃焼
法、２段燃焼法が有効とされており、燃料リッチの還元
性ガスを発生させることによりＮＯｘ量の低減を図るも
のである。2. Description of the Related Art It is well known that in a boiler using fossil fuel such as coal or heavy oil, nitrogen oxide (hereinafter referred to as NOx) is generated by combustion. As a method of reducing this NOx, there is a method of reducing the NOx amount generated during combustion, that is, the NOx generation amount itself, and the generated NOx.
It is roughly classified into a method of reducing x to nitrogen and releasing it to the atmosphere.
The former is a method of reducing thermal NOx generated at a high temperature and a high oxygen concentration, and a combustion method using a low NOx burner and a two-stage combustion method are effective, and NOx is generated by generating a fuel-rich reducing gas. It is intended to reduce the amount.
【０００３】一方、化石燃料には硫黄（Ｓ）分が含まれ
ており、サーマルＮＯｘを低減するために燃焼リッチの
還元性ガスを生成させて低ＮＯｘ化を図ろうとすると、
生成した還元性ガス中にＨ2ＳやＣＯＳ等の腐食性の強
い成分が含まれるようになり、通常の酸化性ガスに比べ
て、腐食性が強くなり、例えばボイラの水管で腐食が発
生するという問題が生じる。On the other hand, fossil fuels contain sulfur (S), and in order to reduce thermal NOx, a combustion rich reducing gas is generated to reduce NOx.
The generated reducing gas contains a highly corrosive component such as H 2 S and COS, and becomes more corrosive than a normal oxidizing gas. For example, corrosion occurs in a water pipe of a boiler. The problem arises.
【０００４】一般にボイラの水管材料としては炭素鋼、
低合金Ｃｒ−Ｍｏ鋼が使用されており、水管で腐食が生
じる位置はバーナ近傍である。また、発明者のこれまで
の研究結果によると、腐食部位表面には硫化物スケール
（ＦｅＳ）が形成されていることが特徴で、その表面に
はカーボンやパーライト（ＦｅＳ2）を含む未燃粒子が
多数付着している。このことから、腐食機構としては燃
焼火炎の水管への直撃による還元性雰囲気の形成および
未燃分の付着による硫化の促進が挙げられる。Generally, carbon steel is used as a water pipe material for boilers.
Low alloy Cr-Mo steel is used, and the position where corrosion occurs in the water pipe is near the burner. In addition, according to the results of the research conducted by the inventor, the characteristic feature is that sulfide scale (FeS) is formed on the surface of the corroded portion, and unburned particles containing carbon and pearlite (FeS 2 ) are formed on the surface. Are attached. From this, the corrosion mechanism includes the formation of a reducing atmosphere by direct hit of the combustion flame to the water pipe and the promotion of sulfidation by the adhesion of unburned components.
【０００５】[0005]
【発明が解決しようとする課題】特に硫黄含有量の多い
燃料、例えば高硫黄石炭やオリマルジョン（オリノコタ
ールの水エマルジョン）を空気比の低い条件で燃焼する
場合には、腐食の主原因となる硫化水素（Ｈ2Ｓ）の濃
度が高くなる。従って、高硫黄を含有する燃料を燃焼す
る場合にはできるだけ空気比を高くする必要がある。し
かし、空気比を高くすると、排ガス中のＮＯｘが高くな
るという問題点がある。Particularly, when a fuel having a high sulfur content, for example, high-sulfur coal or orimuljeon (water emulsion of orinocotal) is burned at a low air ratio, sulfurization which is the main cause of corrosion is caused. The concentration of hydrogen (H 2 S) increases. Therefore, when burning a fuel containing high sulfur, it is necessary to increase the air ratio as much as possible. However, when the air ratio is increased, there is a problem that NOx in the exhaust gas is increased.
【０００６】本発明の目的は、硫黄を含む燃料を低ＮＯ
ｘ燃焼させるボイラにおいて、排ガス中のＮＯｘを増加
させることなく水管の腐食を防止することにある。It is an object of the present invention to reduce sulfur-containing fuels to low NO.
In a boiler that burns x, it is to prevent corrosion of a water pipe without increasing NOx in exhaust gas.
【０００７】[0007]
【課題を解決するための手段】上記目的は、水管で炉壁
が構成されたボイラで硫黄を含む燃料を燃焼させる硫黄
含有燃料の燃焼方法において、バーナの高さで前記水管
近傍の酸素分圧と硫黄分圧及びボイラ排ガス中のＮＯｘ
濃度に基づき各バーナに供給する燃焼空気流量を制御す
ることにより達成される。SUMMARY OF THE INVENTION The above object is to provide a method for burning a sulfur-containing fuel in which a fuel containing sulfur is burned in a boiler having a water wall as a furnace wall. And sulfur partial pressure and NOx in boiler exhaust gas
This is achieved by controlling the flow rate of combustion air supplied to each burner based on the concentration.
【０００８】前記酸素分圧をバーナの高さで前記水管近
傍に設置した酸素分析計の分析値と燃焼空気流量から演
算し、前記硫黄分圧をバーナの高さで前記水管近傍に設
置した硫化水素分析計の分析値と燃焼空気流量から演算
することも出来る。The oxygen partial pressure is calculated from the analysis value of an oxygen analyzer installed near the water pipe at the height of the burner and the flow rate of the combustion air, and the sulfur partial pressure is sulfurized installed near the water pipe at the height of the burner. It can also be calculated from the analysis value of the hydrogen analyzer and the combustion air flow rate.
【０００９】前記酸素分圧をバーナの高さで前記水管近
傍に設置した酸素分析計の分析値と燃焼空気流量から演
算し、前記硫黄分圧を予め分析した燃料中の硫黄含有率
と燃料使用量及び燃焼空気流量から演算することも出来
る。The oxygen partial pressure is calculated from the analysis value of an oxygen analyzer installed near the water pipe at the height of the burner and the flow rate of the combustion air, and the sulfur partial pressure is pre-analyzed. It can also be calculated from the amount and the combustion air flow rate.
【００１０】前記各バーナに供給する燃焼空気に硫黄を
固定する物質のＺｎＯまたはＣａＯを添加することが望
ましい。It is desirable to add ZnO or CaO, which is a substance that fixes sulfur, to the combustion air supplied to each burner.
【００１１】[0011]
【作用】ボイラ炉壁の水管において腐食が問題となる部
位は還元炎が接触する部位、例えば、火炎と平行な方向
の側壁のバーナの高さ中央部なので、その位置の水管表
面近傍の腐食環境、例えば硫化水素濃度、酸素濃度を測
定し、硫黄分圧と酸素分圧を求めて必要最小の空気量
を、またボイラ排ガス出口のＮＯｘ値に基づいて、必要
最大の空気量を決定し、各バーナへ供給する燃焼空気量
を制御することにより、水管の硫化腐食を防ぐととも
に、排ガス中のＮＯｘが増加しないように燃焼させるこ
とが可能となる。[Function] In the water pipe of the boiler furnace wall, the part where corrosion is a problem is the part where the reducing flame comes into contact, for example, the center of the burner height of the side wall in the direction parallel to the flame, so the corrosive environment near the water pipe surface at that position , For example, the hydrogen sulfide concentration and the oxygen concentration are measured, the sulfur partial pressure and the oxygen partial pressure are obtained to determine the minimum required air amount, and the required maximum air amount is determined based on the NOx value at the boiler exhaust gas outlet. By controlling the amount of combustion air supplied to the burner, it is possible to prevent sulfidation corrosion of the water pipe and to combust so that NOx in the exhaust gas does not increase.
【００１２】また、燃焼空気量の制御のみで腐食が抑制
できない場合は、排ガス中の硫黄分を固定することがで
きる物質を側壁に隣接するバーナへ供給することによ
り、側壁近傍のガス中の硫黄ポテンシャルを許容できる
値以下に低下させ、腐食を防止することが可能となる。When the corrosion cannot be suppressed only by controlling the amount of combustion air, a substance capable of fixing the sulfur content in the exhaust gas is supplied to the burner adjacent to the side wall so that the sulfur in the gas near the side wall can be suppressed. It is possible to reduce the potential below the allowable value and prevent corrosion.
【００１３】[0013]
【実施例】以下、本発明の一実施例を図面を参照して説
明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
【００１４】図１は本発明の一実施例の構成を示す線図
である。FIG. 1 is a diagram showing the configuration of an embodiment of the present invention.
【００１５】図２は図１のＡ−Ａ′断面の構成を示す線
図である。FIG. 2 is a diagram showing the structure of the AA 'cross section of FIG.
【００１６】先ず、本発明の実施例の装置構成を説明す
る。First, a device configuration of an embodiment of the present invention will be described.
【００１７】図１及び図２において、側壁１１の中央部
のバーナレベルに腐食センサ３が設けられている。本腐
食センサ３は例えば、酸素センサ、硫化水素センサから
構成されるもので、酸素センサは酸素濃度を分析して酸
素分圧を演算し、側壁水管近傍の雰囲気が還元雰囲気か
酸化雰囲気かを検出する。また、硫化水素センサは硫化
水素濃度を分析して硫黄分圧を演算する。本腐食センサ
３はコントローラ５の入力部に接続し、ボイラ排ガス出
口に設置されたＮＯｘ分析計４も接続している。一方、
コントローラ５の出力部は各バーナの２次空気の流量を
調節するダンパ６に接続されている。さらに、側壁に隣
接するバーナ８−１と８−４には、燃料中に含まれる硫
黄を固定して、側壁の硫黄ポテンシャルを低下させるた
めの物質を供給する配管７が接続されている。In FIGS. 1 and 2, the corrosion sensor 3 is provided at the burner level in the center of the side wall 11. The corrosion sensor 3 is composed of, for example, an oxygen sensor and a hydrogen sulfide sensor. The oxygen sensor analyzes the oxygen concentration and calculates the oxygen partial pressure to detect whether the atmosphere near the sidewall water pipe is a reducing atmosphere or an oxidizing atmosphere. To do. Further, the hydrogen sulfide sensor analyzes the hydrogen sulfide concentration to calculate the sulfur partial pressure. The corrosion sensor 3 is connected to the input section of the controller 5, and is also connected to the NOx analyzer 4 installed at the boiler exhaust gas outlet. on the other hand,
The output part of the controller 5 is connected to a damper 6 that adjusts the flow rate of the secondary air of each burner. Further, the burners 8-1 and 8-4 adjacent to the side wall are connected to a pipe 7 for supplying a substance for fixing sulfur contained in the fuel and lowering the sulfur potential of the side wall.
【００１８】次に、本発明の実施例の燃焼方法を説明す
る。Next, the combustion method of the embodiment of the present invention will be described.
【００１９】通常の低ＮＯｘ燃焼においては、バーナに
より空気比０.８程度の不完全燃焼を行い、未燃分を火
炉１の上部で空気配管１０により供給されアフターエア
ーポート９から吹き込まれる空気により燃焼させる。こ
のため、バーナの高さで燃焼火炎は酸素不足状態、すな
わち還元炎となる。In normal low NOx combustion, incomplete combustion with an air ratio of about 0.8 is performed by a burner, and unburned components are supplied by an air pipe 10 at the upper part of the furnace 1 by air blown from an after air port 9. To burn. Therefore, at the height of the burner, the combustion flame becomes an oxygen deficient state, that is, a reducing flame.
【００２０】図３は一般的な温度５００℃におけるＦｅ
−Ｓ−化学ポテンシャル図である。FIG. 3 shows Fe at a general temperature of 500.degree.
-S- chemical potential diagram.
【００２１】本図の横軸は酸素分圧（Ｏ2）を表し、縦
軸は硫黄分圧（Ｓ2）を表わす。In the figure, the horizontal axis represents oxygen partial pressure (O 2 ) and the vertical axis represents sulfur partial pressure (S 2 ).
【００２２】低ＮＯｘ燃焼により還元炎が側壁１１に接
触した場合、水管表面は還元雰囲気となる。この状態は
図３のＡ点で、水管の材料である鉄は硫化し、急激に減
肉する。これを防止するためには、側壁近傍の雰囲気を
酸化雰囲気に保持する必要がある。このため、本実施例
においては側壁１３に設置した腐食センサ３により側壁
の雰囲気を測定し、雰囲気が硫化物が安定して存在する
領域にある場合には、側壁に隣接したバーナ８−１と８
−４に供給する２次空気量を増加させ、酸化物が安定と
なる領域、即ち図３のＢ点となるように雰囲気を変え
る。ただし、２次空気量を過度に増加させると、排ガス
中のＮＯｘ濃度が増加するため、本実施例においてはボ
イラ排ガス出口のＮＯｘ分析計４からの信号により、Ｎ
Ｏｘが許容値以上となる場合には、中央部のバーナ８−
２及び８−３に供給する２次空気量を低下させるように
コントローラ５がダンパ６を制御する。。When the reducing flame comes into contact with the side wall 11 due to low NOx combustion, the surface of the water pipe becomes a reducing atmosphere. This state is point A in FIG. 3, and iron, which is the material of the water pipe, is sulfided and the wall thickness is rapidly reduced. In order to prevent this, it is necessary to maintain the atmosphere near the side wall in an oxidizing atmosphere. Therefore, in this embodiment, the atmosphere of the side wall is measured by the corrosion sensor 3 installed on the side wall 13, and when the atmosphere is in the region where the sulfide is stably present, the burner 8-1 adjacent to the side wall is used. 8
The amount of secondary air supplied to -4 is increased, and the atmosphere is changed so as to reach a region where the oxide is stable, that is, point B in FIG. However, if the amount of secondary air is excessively increased, the NOx concentration in the exhaust gas will increase. Therefore, in this embodiment, a signal from the NOx analyzer 4 at the outlet of the boiler exhaust gas causes
If Ox exceeds the allowable value, the central burner 8
The controller 5 controls the damper 6 so as to reduce the amount of secondary air supplied to 2 and 8-3. .
【００２３】腐食センサ３としては、燃焼ガス中の酸素
分圧及び硫黄分圧を出力し、図３に示したどの領域に側
壁水管の雰囲気が位置するかを認識することのできる装
置が必要である。そのためには、ジルコニア式の酸素セ
ンサに代表される酸素分析計と硫化水素分析計を併用ま
たは単独で用いる方法がある。酸素分圧は酸素濃度とバ
ーナに供給される燃焼空気量から求め、硫黄分圧は硫化
水素濃度とバーナに供給される燃焼空気量から求める。
硫黄分圧は燃料中の硫黄含有量及び燃焼空気量から推定
することが可能であり、酸素分析計による酸素濃度のみ
の測定でも制御可能である。その他には、硫化腐食でメ
タル材料の減肉した際に生じる電気抵抗値の変化量を信
号として使用してもよい。また、本実施例では腐食セン
サを側壁中央部に１つ設置しているが、特に設置位置や
個数を限定するものではなく、ボイラの大きさや使用燃
料によって、適宜決めれば良い。As the corrosion sensor 3, a device capable of outputting the oxygen partial pressure and the sulfur partial pressure in the combustion gas and recognizing in which region shown in FIG. 3 the atmosphere of the side wall water pipe is located is required. is there. For that purpose, there is a method in which an oxygen analyzer represented by a zirconia oxygen sensor and a hydrogen sulfide analyzer are used together or alone. The oxygen partial pressure is obtained from the oxygen concentration and the combustion air amount supplied to the burner, and the sulfur partial pressure is obtained from the hydrogen sulfide concentration and the combustion air amount supplied to the burner.
The sulfur partial pressure can be estimated from the sulfur content in the fuel and the combustion air amount, and can be controlled by measuring only the oxygen concentration with an oxygen analyzer. In addition, the amount of change in electric resistance value that occurs when the metal material is thinned due to sulfide corrosion may be used as a signal. Further, in the present embodiment, one corrosion sensor is installed in the central portion of the side wall, but the installation position and number are not particularly limited, and it may be appropriately determined depending on the size of the boiler and the fuel used.
【００２４】次に、硫黄固定用の物質供給方法について
説明する。Next, a method of supplying a substance for fixing sulfur will be described.
【００２５】硫黄分の比較的少ない燃料の場合には上記
した燃焼方法で、硫化腐食を効果的に防止することが出
来る。しかし、硫黄の含有量の多い燃料の場合には、雰
囲気中の硫黄ポテンシャルが高くなる。このため、側壁
に隣接したバーナ８−１と８−４に供給する２次空気の
量をかなり増加させる必要があり、排ガス中のＮＯｘ濃
度が急増する恐れがある。そこで、本実施例において
は、側壁に隣接するバーナ８−１と８−４に供給する２
次空気配管に燃焼ガス中の硫化水素と反応し、硫化水素
を固定する物質を供給することにより、水管表面の硫黄
ポテンシャル低下させるようにしている。硫化水素を固
定するに好適な物質としては、水管材料（主として鉄
鋼）よりも硫化反応が進展しやすい材料、例えば、Ｚｎ
Ｏ，ＣａＯ等が有効である。添加量は燃料中の硫黄含有
量によって異なり、モル比で１：１程度にすると良い。
本実施例では、２次空気配管に硫黄を固定する物質を供
給する構成としているが、燃料供給配管に供給すること
も出来る。In the case of a fuel having a relatively low sulfur content, the above combustion method can effectively prevent sulfidation corrosion. However, in the case of a fuel having a high sulfur content, the sulfur potential in the atmosphere becomes high. For this reason, it is necessary to considerably increase the amount of secondary air supplied to the burners 8-1 and 8-4 adjacent to the side wall, and there is a risk that the NOx concentration in the exhaust gas will rapidly increase. Therefore, in this embodiment, 2 is supplied to the burners 8-1 and 8-4 adjacent to the side wall.
By supplying a substance that reacts with hydrogen sulfide in the combustion gas to fix the hydrogen sulfide to the next air pipe, the sulfur potential on the surface of the water pipe is lowered. As a substance suitable for fixing hydrogen sulfide, a material in which a sulfurization reaction is more likely to proceed than a water pipe material (mainly steel), for example, Zn
O, CaO, etc. are effective. The addition amount depends on the sulfur content in the fuel, and the molar ratio is preferably about 1: 1.
In this embodiment, the substance that fixes sulfur is supplied to the secondary air pipe, but it can also be supplied to the fuel supply pipe.
【００２６】[0026]
【発明の効果】本発明によれば、硫黄を含有する燃料を
燃焼させても、還元炎が接触する炉壁の水管近傍の硫黄
分圧、酸素分圧及びボイラ排ガス出口のＮＯｘ値に基づ
いてバーナへ供給する燃焼空気量を制御することによ
り、排ガス中のＮＯｘ濃度を増加させることなく、水管
の硫化腐食を効果的に防止することができる。According to the present invention, even if a fuel containing sulfur is burned, the partial pressure of sulfur in the vicinity of the water pipe of the furnace wall contacting the reducing flame, the partial pressure of oxygen, and the NOx value at the boiler exhaust gas outlet are used. By controlling the amount of combustion air supplied to the burner, it is possible to effectively prevent sulfidation corrosion of the water pipe without increasing the NOx concentration in the exhaust gas.
【００２７】また、排ガス中の硫黄分を固定する物質を
バーナへ供給することにより、側壁近傍の燃焼ガス中の
硫黄ポテンシャルを低下させ、水管の腐食を防止するこ
とができる。Further, by supplying the burner with a substance that fixes the sulfur content in the exhaust gas, the sulfur potential in the combustion gas near the side wall can be lowered and corrosion of the water pipe can be prevented.
【図１】本発明の一実施例の構成を示す線図である。FIG. 1 is a diagram showing the configuration of an embodiment of the present invention.
【図２】図１のＡ−Ａ′断面の構成を示す線図である。FIG. 2 is a diagram showing a configuration of a cross section taken along the line AA ′ of FIG.
【図３】一般的な温度５００℃におけるＦｅ−Ｓ−化学
ポテンシャル図である。FIG. 3 is a Fe-S-chemical potential diagram at a general temperature of 500 ° C.
１ 火炉 ２ ボイラ排ガス出口 ３ 腐食センサ ４ ＮＯｘ分析計 ５ コントローラ ６ ダンパ ７ 硫黄固定物質供給配管 ８ バーナ ９ アフターエアーポート １０ 空気配管 １１ 側壁 １２ 前壁 １３ 後壁 1 furnace 2 Boiler exhaust gas outlet 3 Corrosion sensor 4 NOx analyzer 5 controller 6 damper 7 Sulfur fixing substance supply pipe 8 burners 9 After Air Port 10 Air piping 11 Side wall 12 front wall 13 rear wall
Claims (4)
含む燃料を燃焼させる硫黄含有燃料の燃焼方法におい
て、バーナの高さで前記水管近傍の酸素分圧と硫黄分圧
及びボイラ排ガス中のＮＯｘ濃度に基づき各バーナに供
給する燃焼空気流量を制御することを特徴とする硫黄含
有燃料の燃焼方法。1. A combustion method of a sulfur-containing fuel in which a fuel containing sulfur is burned in a boiler in which a furnace wall is constituted by a water pipe, wherein the oxygen partial pressure and the sulfur partial pressure in the vicinity of the water pipe at the height of a burner, and the boiler exhaust gas A method for combusting a sulfur-containing fuel, characterized in that the flow rate of combustion air supplied to each burner is controlled based on the NOx concentration.
近傍に設置した酸素分析計の分析値と燃焼空気流量から
演算し、前記硫黄分圧をバーナの高さで前記水管近傍に
設置した硫化水素分析計の分析値と燃焼空気流量から演
算することを特徴とする請求項１に記載の硫黄含有燃料
の燃焼方法。2. The oxygen partial pressure is calculated from the analysis value of an oxygen analyzer installed near the water pipe at the height of the burner and the combustion air flow rate, and the sulfur partial pressure is installed near the water pipe at the height of the burner. 2. The method for burning a sulfur-containing fuel according to claim 1, wherein calculation is performed from an analysis value of the hydrogen sulfide analyzer and a flow rate of combustion air.
近傍に設置した酸素分析計の分析値と燃焼空気流量から
演算し、前記硫黄分圧を予め分析した燃料中の硫黄含有
率と燃料使用量及び燃焼空気流量から演算することを特
徴とする請求項１に記載の硫黄含有燃料の燃焼方法。3. The oxygen partial pressure is calculated from the analysis value of an oxygen analyzer installed near the water pipe at the height of a burner and the flow rate of combustion air, and the sulfur partial pressure is analyzed in advance as a sulfur content in the fuel. The method for burning a sulfur-containing fuel according to claim 1, wherein it is calculated from a fuel usage amount and a combustion air flow rate.
を固定する物質のＺｎＯまたはＣａＯを添加することを
特徴とする請求項１に記載の硫黄含有燃料の燃焼方法。4. The method for burning a sulfur-containing fuel according to claim 1, wherein ZnO or CaO, which is a substance that fixes sulfur, is added to the combustion air supplied to each of the burners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22498694A JP3525266B2 (en) | 1994-09-20 | 1994-09-20 | Combustion method for sulfur-containing fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22498694A JP3525266B2 (en) | 1994-09-20 | 1994-09-20 | Combustion method for sulfur-containing fuel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0886408A JPH0886408A (en) | 1996-04-02 |
| JP3525266B2 true JP3525266B2 (en) | 2004-05-10 |
Family
ID=16822313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22498694A Expired - Fee Related JP3525266B2 (en) | 1994-09-20 | 1994-09-20 | Combustion method for sulfur-containing fuel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3525266B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225805A (en) * | 2013-04-24 | 2013-07-31 | 广东电网公司电力科学研究院 | Boiler apparatus for preventing high temperature corrosion of water screen |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4664179B2 (en) * | 2005-10-17 | 2011-04-06 | バブコック日立株式会社 | Boiler equipment, boiler equipment operation method, and boiler equipment repair method |
| JP5162228B2 (en) * | 2007-12-21 | 2013-03-13 | バブコック日立株式会社 | Boiler equipment |
| JP5459712B2 (en) * | 2010-06-14 | 2014-04-02 | 一般財団法人電力中央研究所 | Corrosion site identification method and sulfide corrosion diagnosis method |
| JP5716922B2 (en) * | 2012-02-22 | 2015-05-13 | 三菱日立パワーシステムズ株式会社 | Waste heat recovery boiler and combined power generation facility |
| CN110986085B (en) * | 2019-11-21 | 2021-07-27 | 东南大学 | Four-corner tangential boiler combustion optimization control method based on air distribution mode optimization |
-
1994
- 1994-09-20 JP JP22498694A patent/JP3525266B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225805A (en) * | 2013-04-24 | 2013-07-31 | 广东电网公司电力科学研究院 | Boiler apparatus for preventing high temperature corrosion of water screen |
| CN103225805B (en) * | 2013-04-24 | 2015-03-18 | 广东电网公司电力科学研究院 | Boiler apparatus for preventing high temperature corrosion of water screen and method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0886408A (en) | 1996-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6247416B1 (en) | Method of operating a furnace and device for implementing the method | |
| Kuprianov | Applications of a cost-based method of excess air optimization for the improvement of thermal efficiency and environmental performance of steam boilers | |
| JP3525266B2 (en) | Combustion method for sulfur-containing fuel | |
| JPWO2009110034A1 (en) | Primary recirculation exhaust gas flow rate control method and apparatus for oxyfuel boiler | |
| Hesselmann | Optimization of combustion by fuel testing in a NOx reduction test facility | |
| JP3030511B2 (en) | Boiler device and operation method thereof | |
| EP0683357B1 (en) | Method for operating a furnace | |
| JPH1122915A (en) | Method and device therefor for burning sulfur-containing fuel | |
| JP2000249334A (en) | Combustion method of fuel containing sulfur | |
| JPH0611277A (en) | Method and device for adjusting quantity of combustion air of flue-gas recovery device for metallurgical reaction furnace and recovery device and metallurgical reaction furnace | |
| JPS61143615A (en) | Method of preventing corrosion for boiler tube using combustion exhaust gas | |
| JP2002122302A (en) | Boiler apparatus and its operation method | |
| AU2019339092B2 (en) | Boiler | |
| JPH0449449Y2 (en) | ||
| CN221573059U (en) | High-precision flow control switching device | |
| US6085673A (en) | Method for reducing waterwall corrosion in low NOx boilers | |
| ES2201885A1 (en) | Procedure for melting a charge of aluminum | |
| CN112610945B (en) | H in local environment of water-cooled wall of coal-fired boiler 2 Method and equipment for determining S content | |
| JP3866253B2 (en) | Control method of combustion air in waste incinerator | |
| JP2612284B2 (en) | Combustion equipment | |
| JP7519049B1 (en) | Flare gas combustion treatment system | |
| JP2000234704A (en) | Pulverized coal combustion device | |
| JPH0419445B2 (en) | ||
| US20050089811A1 (en) | Exhaust recirculating method and apparatus for a hydrocarbon fired burner | |
| JPH0517444B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20031215 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20040113 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20040203 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090227 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100227 Year of fee payment: 6 |
|
| LAPS | Cancellation because of no payment of annual fees |