JP2021055970A - Liquid fuel combustion apparatus - Google Patents

Liquid fuel combustion apparatus Download PDF

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JP2021055970A
JP2021055970A JP2019181101A JP2019181101A JP2021055970A JP 2021055970 A JP2021055970 A JP 2021055970A JP 2019181101 A JP2019181101 A JP 2019181101A JP 2019181101 A JP2019181101 A JP 2019181101A JP 2021055970 A JP2021055970 A JP 2021055970A
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liquid fuel
combustion gas
supply nozzle
oxygen
combustion
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JP6957574B2 (en
Inventor
健一 友澤
Kenichi Tomosawa
健一 友澤
伊藤　貴之
Takayuki Ito
貴之 伊藤
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Chugai Ro Co Ltd
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Chugai Ro Co Ltd
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Priority to JP2019181101A priority Critical patent/JP6957574B2/en
Priority to TW109124277A priority patent/TWI811556B/en
Priority to KR1020200091434A priority patent/KR20210039278A/en
Priority to CN202011039680.XA priority patent/CN112594681B/en
Publication of JP2021055970A publication Critical patent/JP2021055970A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/02—Structural details of mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
    • F23D11/106—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting at the burner outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00—Combustion apparatus characterised by arrangements for air supply
    • F23C7/008—Flow control devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/002—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space spraying nozzle arranged within furnace openings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
    • F23D11/108—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel intersecting downstream of the burner outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36—Details, e.g. burner cooling means, noise reduction means
    • F23D11/38—Nozzles; Cleaning devices therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
    • F23L7/007—Supplying oxygen or oxygen-enriched air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/02—Regulating fuel supply conjointly with air supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2700/00—Special arrangements for combustion apparatus using fluent fuel
    • F23C2700/02—Combustion apparatus using liquid fuel
    • 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
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

To enhance heat efficiency of liquid fuel and reduce noise during combustion when the liquid fuel jetted out from a tip of a liquid fuel supply nozzle is mixed with combustion gas jetted out the periphery thereof and is burned.SOLUTION: Liquid fuel jetted out from a liquid fuel supply nozzle 11 is sprayed in a mist form by using first combustion gas jetted out from a spray gas supply nozzle 12 provided on the outer peripheral side and further, second combustion gas is jetted out from a primary combustion gas supply nozzle 13 provided on the outer peripheral side, so as to perform primary combustion of the liquid fuel. Oxygen is introduced to at least one of the first combustion gas and the second combustion gas and the oxygen is jetted out to the primarily burned liquid fuel from an oxygen supply nozzle 14 provided at a position on the outer peripheral side separated from the primary combustion gas supply nozzle, so as to perform secondary combustion of the liquid fuel.SELECTED DRAWING: Figure 2

Description

本発明は、液体燃料供給ノズルの先端から噴出される液体燃料を、その周囲から噴出される燃焼用気体と混合させて燃焼させる液体燃料燃焼装置に関するものである。特に、液体燃料供給ノズルの先端から噴出される液体燃料を、その周囲から噴出される燃焼用気体と混合させて燃焼させる液体燃料燃焼装置において、液体燃料を燃焼させるにあたり、液体燃料と混合させる燃焼用気体に酸素を供給して熱効率を高め、省エネルギー化を図ると共に、酸素を供給させて液体燃料を燃焼させた場合に生じる燃焼時の騒音を低下させるようにした点に特徴を有するものである。 The present invention relates to a liquid fuel combustion apparatus that mixes and burns a liquid fuel ejected from the tip of a liquid fuel supply nozzle with a combustion gas ejected from the periphery thereof. In particular, in a liquid fuel combustion device that mixes and burns the liquid fuel ejected from the tip of the liquid fuel supply nozzle with the combustion gas ejected from the surroundings, when the liquid fuel is burned, the combustion is mixed with the liquid fuel. It is characterized in that oxygen is supplied to the gas to improve thermal efficiency and energy is saved, and at the same time, the combustion noise generated when the liquid fuel is burned by supplying oxygen is reduced. ..

従来から、液体燃料燃焼装置としては、特許文献１、２等に示されるように、オイル等の液体燃料を燃焼用気体と一緒にして燃料噴霧ノズルの先端から噴霧させて燃焼させるようにしたものが用いられている。 Conventionally, as a liquid fuel combustion device, as shown in Patent Documents 1, 2 and the like, a liquid fuel such as oil is sprayed together with a combustion gas from the tip of a fuel spray nozzle and burned. Is used.

ここで、このような液体燃料燃焼装置において、オイル等の液体燃料を燃焼用空気と混合させて燃焼させる場合、燃焼用酸素と混合させて燃焼させる場合に比べて、熱効率が低いという問題があった。 Here, in such a liquid fuel combustion device, there is a problem that when a liquid fuel such as oil is mixed with combustion air and burned, the thermal efficiency is lower than when it is mixed with combustion oxygen and burned. It was.

また、従来においては、特許文献１に示されるように、液体燃料のオイルを噴出させるオイルノズルの外周に第２空気ノズルと第１空気ノズルとを設け、これらの外周側から高温の予熱燃焼用空気を供給してオイルを燃焼させるにあたり、第１空気ノズルを進退させて、オイルノズルと第２空気ノズルとの間に冷却空気を通す冷却空気通路を形成できるようにし、第２空気ノズル内に少量の低温空気を供給して、オイルノズルが高温化するのを防止し、また第２空気ノズルの先端部が第１空気ノズルの先端部より前になるようにして、第１空気ノズルの先端部内面にオイルが付着するのを防止し、高温の予熱燃焼用空気を用いて重質オイルを燃焼できるようにしたものが示されている。 Further, conventionally, as shown in Patent Document 1, a second air nozzle and a first air nozzle are provided on the outer periphery of an oil nozzle for ejecting liquid fuel oil, and for high-temperature preheat combustion from the outer peripheral side thereof. When supplying air and burning oil, the first air nozzle is moved forward and backward so that a cooling air passage for passing cooling air can be formed between the oil nozzle and the second air nozzle, and the inside of the second air nozzle is formed. A small amount of low temperature air is supplied to prevent the oil nozzle from becoming hot, and the tip of the second air nozzle is in front of the tip of the first air nozzle so that the tip of the first air nozzle is in front of the tip of the first air nozzle. A nozzle that prevents oil from adhering to the inner surface of the part and enables heavy oil to be burned using high-temperature preheated combustion air is shown.

しかし、この特許文献１に示されるものにおいては、前記のように高温の予熱燃焼用空気を用いて重質オイルを燃焼できるが、酸素で燃焼させるときのように液体燃料の熱効率を高めることはできなかった。 However, in what is shown in Patent Document 1, although heavy oil can be burned using high-temperature preheated combustion air as described above, it is not possible to increase the thermal efficiency of the liquid fuel as in the case of burning with oxygen. could not.

また、特許文献２に示されるものにおいては、液体燃料の熱効率を高めるため、酸素を供給する酸素供給口を、液体燃料に圧力をかけて噴霧させる液体燃料供給ノズルの先端近傍の外周に設け、液体燃料供給ノズルの先端から噴霧された液体燃料と前記の酸素供給口から供給された酸素とを混合させて、液体燃料を燃焼させるようにしたものが提案されている。 Further, in the one shown in Patent Document 2, in order to increase the thermal efficiency of the liquid fuel, an oxygen supply port for supplying oxygen is provided on the outer periphery near the tip of the liquid fuel supply nozzle for spraying the liquid fuel by applying pressure. It has been proposed that the liquid fuel sprayed from the tip of the liquid fuel supply nozzle and the oxygen supplied from the oxygen supply port are mixed to burn the liquid fuel.

ここで、特許文献２に示されるように、液体燃料供給ノズルから液体燃料に圧力をかけて噴霧させ、その外周に設けた酸素供給口から供給させた酸素とすぐに混合させて液体燃料を燃焼させるようにすると、液体燃料の熱効率を高めて、省エネルギー化を図ることができるが、このように液体燃料供給ノズルから噴霧された液体燃料を酸素とすぐに混合させて燃焼させた場合、燃焼時における騒音が大きくなるという問題があった。 Here, as shown in Patent Document 2, the liquid fuel is sprayed by applying pressure from the liquid fuel supply nozzle, and the liquid fuel is immediately mixed with the oxygen supplied from the oxygen supply port provided on the outer periphery thereof to burn the liquid fuel. If this is done, the thermal efficiency of the liquid fuel can be increased and energy can be saved. However, when the liquid fuel sprayed from the liquid fuel supply nozzle is immediately mixed with oxygen and burned, it is during combustion. There was a problem that the noise in the air became louder.

特公昭６３−３２０６号公報Special Publication No. 63-3206 特開昭５４−２４３２３号公報JP-A-54-24323

本発明は、液体燃料供給ノズルの先端から噴出されるオイル等の液体燃料を、その周囲から噴出される燃焼用気体と混合させて燃焼させる液体燃料燃焼装置における前記のような問題を解決することを課題とするものである。 The present invention solves the above-mentioned problems in a liquid fuel combustion apparatus in which a liquid fuel such as oil ejected from the tip of a liquid fuel supply nozzle is mixed with a combustion gas ejected from the surroundings and burned. Is the subject.

特に、液体燃料供給ノズルの先端から噴出される液体燃料を、その周囲から噴出される燃焼用気体と混合させて燃焼させるにあたり、液体燃料と混合させて燃焼させる燃焼用気体に酸素を供給させて熱効率を高め、省エネルギー化を図ると共に、燃焼用気体に酸素を供給させて液体燃料を燃焼させる場合に生じる燃焼時の騒音を低下させることを課題とするものである。 In particular, when the liquid fuel ejected from the tip of the liquid fuel supply nozzle is mixed with the combustion gas ejected from the surroundings and burned, oxygen is supplied to the combustion gas to be mixed and burned with the liquid fuel. The object is to improve the thermal efficiency, save energy, and reduce the combustion noise generated when the liquid fuel is burned by supplying oxygen to the combustion gas.

本発明における液体燃料燃焼装置においては、前記のような課題を解決するため、液体燃料供給ノズルの先端から噴出される液体燃料を、その周囲から噴出される燃焼用気体と混合させて燃焼させる液体燃料燃焼装置において、前記の液体燃料供給ノズルの外周側に、この液体燃料供給ノズルの先端から噴出される液体燃料を霧状にして噴霧させる第１燃焼用気体を供給する噴霧用気体供給ノズルを設けると共に、この噴霧用気体供給ノズルの外周側に一次燃焼用気体供給ノズルを設け、この一次燃焼用気体供給ノズルから前記の霧状にして噴霧された液体燃料に対して第２燃焼用気体を噴出させて、前記の液体燃料を一次燃焼させるにあたり、前記の噴霧用気体供給ノズルに供給する第１燃焼用気体と一次燃焼用気体供給ノズルに供給する第２燃焼用気体との少なくとも一方に酸素を導入させると共に、前記の一次燃焼用気体供給ノズルから離れた外周側の位置に酸素供給ノズルを設け、この酸素供給ノズルから前記の一次燃焼されている液体燃料に酸素を噴出させて液体燃料を二次燃焼させるようにした。 In the liquid fuel combustion apparatus of the present invention, in order to solve the above-mentioned problems, the liquid fuel ejected from the tip of the liquid fuel supply nozzle is mixed with the combustion gas ejected from the surroundings and burned. In the fuel combustion apparatus, a spray gas supply nozzle for supplying a first combustion gas for atomizing and spraying the liquid fuel ejected from the tip of the liquid fuel supply nozzle is provided on the outer peripheral side of the liquid fuel supply nozzle. Along with the provision, a primary combustion gas supply nozzle is provided on the outer peripheral side of the spray gas supply nozzle, and a second combustion gas is applied to the above-mentioned atomized liquid fuel sprayed from the primary combustion gas supply nozzle. When the liquid fuel is ejected for primary combustion, oxygen is supplied to at least one of the first combustion gas supplied to the spray gas supply nozzle and the second combustion gas supplied to the primary combustion gas supply nozzle. An oxygen supply nozzle is provided at a position on the outer peripheral side away from the primary combustion gas supply nozzle, and oxygen is ejected from the oxygen supply nozzle to the primary combustion liquid fuel to discharge the liquid fuel. I tried to make it secondary burn.

そして、本発明に係る液体燃料燃焼装置においては、前記のように液体燃料供給ノズルの先端から液体燃料を噴出させ、このように液体燃料供給ノズルから噴出された液体燃料を、この液体燃料供給ノズルの外周側に設けた噴霧用気体供給ノズルから噴出させた第１燃焼用気体によって霧状にして噴霧させ、この霧状に噴霧された液体燃料に対して、噴霧用気体供給ノズルの外周側に設けた第２燃焼用気体供給ノズルから燃焼用気体を噴出させて液体燃料を一次燃焼させるにあたり、前記の噴霧用気体供給ノズルに供給する第１燃焼用気体と一次燃焼用気体供給ノズルに供給する第２燃焼用気体との少なくとも一方に酸素を導入させるようにして一次燃焼させ、さらに前記の一次燃焼用気体供給ノズルから離れた外周側の位置に設けた酸素供給ノズルから酸素を噴出させて、一次燃焼された液体燃料を二次燃焼させるようにしている。 Then, in the liquid fuel combustion device according to the present invention, the liquid fuel is ejected from the tip of the liquid fuel supply nozzle as described above, and the liquid fuel ejected from the liquid fuel supply nozzle in this way is discharged from the liquid fuel supply nozzle. It is atomized by the first combustion gas ejected from the spray gas supply nozzle provided on the outer peripheral side of the above, and the liquid fuel sprayed in the atom form is applied to the outer peripheral side of the spray gas supply nozzle. When the combustion gas is ejected from the provided second combustion gas supply nozzle to perform primary combustion, the liquid fuel is supplied to the first combustion gas and the primary combustion gas supply nozzle supplied to the spray gas supply nozzle. Primary combustion is performed by introducing oxygen into at least one of the second combustion gas, and oxygen is ejected from an oxygen supply nozzle provided at a position on the outer peripheral side away from the primary combustion gas supply nozzle. The liquid fuel that has been primarily burned is secondarily burned.

このように、液体燃料供給ノズルから噴出された液体燃料を、噴霧用気体供給ノズルから噴出させた第１燃焼用気体によって霧状にして噴霧させ、このように霧状に噴霧された液体燃料に一次燃焼用気体供給ノズルから第２燃焼用気体を噴出させて、液体燃料を一次燃焼させるにあたり、噴霧用気体供給ノズルに供給する第１燃焼用気体と一次燃焼用気体供給ノズルに供給する第２燃焼用気体との少なくとも一方に酸素を導入させて液体燃料を一次燃焼させ、さらに一次燃焼用気体供給ノズルから離れた外周側の位置に設けた酸素供給ノズルから酸素を噴出させて、一次燃焼された液体燃料を二次燃焼させるようにすると、酸素が混合された第１燃焼用気体及び／又は第２燃焼用気体によって液体燃料が効率よく一次燃焼されると共に、酸素供給ノズルから噴出させた酸素によって一次燃焼された液体燃料が広い範囲で効率よく二次燃焼されるようになり、液体燃料の熱効率を高めて省エネルギー化できる。また、前記の第１燃焼用気体と第２燃焼用気体の酸素以外を空気とし、液体燃料の噴霧及び／又は一次燃焼において、酸素と空気を混合することにより、酸素だけで噴霧や一次燃焼させる場合に比べて、燃焼時における騒音も小さくなる。 In this way, the liquid fuel ejected from the liquid fuel supply nozzle is atomized and sprayed by the first combustion gas ejected from the spray gas supply nozzle, and the liquid fuel sprayed in the atomized manner is produced. When the second combustion gas is ejected from the primary combustion gas supply nozzle to perform the primary combustion of the liquid fuel, the first combustion gas supplied to the spray gas supply nozzle and the second combustion gas supplied to the primary combustion gas supply nozzle are supplied. Oxygen is introduced into at least one of the combustion gas to perform primary combustion, and oxygen is ejected from an oxygen supply nozzle provided at a position on the outer peripheral side away from the primary combustion gas supply nozzle to perform primary combustion. When the liquid fuel is secondarily combusted, the liquid fuel is efficiently first combusted by the first combustion gas and / or the second combustion gas mixed with oxygen, and the oxygen ejected from the oxygen supply nozzle is ejected. As a result, the primary burned liquid fuel can be efficiently secondarily burned in a wide range, and the thermal efficiency of the liquid fuel can be improved to save energy. Further, in the spraying and / or primary combustion of the liquid fuel, the oxygen other than the oxygen of the first combustion gas and the second combustion gas is used as air, and by mixing oxygen and air, spraying or primary combustion is performed only with oxygen. Compared to the case, the noise during combustion is also smaller.

また、本発明に係る液体燃料燃焼装置においては、前記の液体燃料供給ノズルに供給する液体燃料の量を調整する燃料調整バルブを設けると共に、前記の第１燃焼用気体を供給する噴霧用気体供給ノズルと、前記の第２燃焼用気体を供給する一次燃焼用気体供給ノズルとの少なくとも一方に、前記の第１燃焼用気体及び／又は第２燃焼用気体における空気と酸素との比率を調整する燃焼用気体調整バルブを設けるようにすることができる。 Further, in the liquid fuel combustion apparatus according to the present invention, a fuel adjustment valve for adjusting the amount of liquid fuel supplied to the liquid fuel supply nozzle is provided, and a spray gas supply for supplying the first combustion gas is provided. The ratio of air to oxygen in the first combustion gas and / or the second combustion gas is adjusted to at least one of the nozzle and the primary combustion gas supply nozzle for supplying the second combustion gas. A combustion gas adjusting valve can be provided.

このようにすると、液体燃料供給ノズルに供給する液体燃料の量や燃焼条件等に対応させて、噴霧用気体供給ノズルや一次燃焼用気体供給ノズルから噴出させる燃焼用気体に酸素を導入させるタイミングや導入させる酸素の量を適切に制御して、噴霧された液体燃料を導入された酸素によって適切な状態で一次燃焼させることができると共に、酸素供給ノズルから噴出させた酸素の量を制御して、一次燃焼された液体燃料を二次燃焼させる状態を適切に制御できるようになり、液体燃料の熱効率を高めてさらに省エネルギー化できる。また、前記の第１燃焼用気体と第２燃焼用気体の酸素以外を空気とし、液体燃料の噴霧及び／又は一次燃焼において、酸素と空気を混合することにより、酸素だけで噴霧や一次燃焼させる場合に比べて、燃焼時における騒音も小さくなる。 In this way, the timing of introducing oxygen into the combustion gas ejected from the spray gas supply nozzle or the primary combustion gas supply nozzle is adjusted according to the amount of liquid fuel supplied to the liquid fuel supply nozzle and the combustion conditions. By appropriately controlling the amount of oxygen to be introduced, the sprayed liquid fuel can be primarily combusted in an appropriate state by the introduced oxygen, and the amount of oxygen ejected from the oxygen supply nozzle is controlled. It becomes possible to appropriately control the state of secondary combustion of the primary burned liquid fuel, and it is possible to improve the thermal efficiency of the liquid fuel and further save energy. Further, in the spraying and / or primary combustion of the liquid fuel, the oxygen other than the oxygen of the first combustion gas and the second combustion gas is used as air, and by mixing oxygen and air, spraying or primary combustion is performed only with oxygen. Compared to the case, the noise during combustion is also smaller.

本発明における液体燃料燃焼装置においては、前記のように液体燃料供給ノズルから噴出された液体燃料を、噴霧用気体供給ノズルから噴出させた第１燃焼用気体により霧状にして噴霧させ、このように霧状に噴霧された液体燃料に対して一次燃焼用気体供給ノズルから第２燃焼用気体を噴出させて液体燃料を一次燃焼させるにあたり、噴霧用気体供給ノズルに供給する第１燃焼用気体と一次燃焼用気体供給ノズルに供給する第２燃焼用気体との少なくとも一方に酸素を導入させて液体燃料を一次燃焼させ、さらに一次燃焼用気体供給ノズルから離れた外周側の位置に設けた酸素供給ノズルから酸素を噴出させて、一次燃焼された液体燃料を二次燃焼させるようにしたため、酸素が混合された第１燃焼用気体及び／又は第２燃焼用気体によって液体燃料が効率よく一次燃焼されると共に、酸素供給ノズルから噴出させた酸素によって一次燃焼された液体燃料が広い範囲で効率よく二次燃焼されるようになり、液体燃料の熱効率を高めて省エネルギー化できる。また、前記の第１燃焼用気体と第２燃焼用気体の酸素以外を空気とし、液体燃料の噴霧及び／又は一次燃焼において、酸素と空気を混合することにより、酸素だけで噴霧や一次燃焼させる場合に比べて、燃焼時における騒音も小さくできるようになる。 In the liquid fuel combustion apparatus of the present invention, the liquid fuel ejected from the liquid fuel supply nozzle as described above is atomized and sprayed by the first combustion gas ejected from the spray gas supply nozzle. When the second combustion gas is ejected from the primary combustion gas supply nozzle to the liquid fuel sprayed in the form of mist to perform the primary combustion of the liquid fuel, the first combustion gas supplied to the spray gas supply nozzle is used. Oxygen is introduced into at least one of the secondary combustion gas supplied to the primary combustion gas supply nozzle to perform primary combustion of the liquid fuel, and oxygen supply provided at a position on the outer peripheral side away from the primary combustion gas supply nozzle. Since oxygen is ejected from the nozzle to cause the secondary combustion of the primary combustion liquid fuel, the liquid fuel is efficiently primary-combusted by the first combustion gas and / or the second combustion gas mixed with oxygen. At the same time, the liquid fuel that is primarily burned by the oxygen ejected from the oxygen supply nozzle can be efficiently secondarily burned in a wide range, and the thermal efficiency of the liquid fuel can be improved to save energy. Further, in the spraying and / or primary combustion of the liquid fuel, the oxygen other than the oxygen of the first combustion gas and the second combustion gas is used as air, and by mixing oxygen and air, spraying or primary combustion is performed only with oxygen. Compared to the case, the noise during combustion can be reduced.

この結果、本発明における液体燃料燃焼装置においては、液体燃料供給ノズルの先端から噴出される液体燃料を、その周囲から噴出される燃焼用気体と混合させて燃焼させるにあたり、液体燃料と、酸素が混合された第１燃焼用気体及び／又は第２燃焼用気体によって一次燃焼させた後、酸素供給ノズルから噴出させた酸素によって一次燃焼された液体燃料を広い範囲で効率よく二次燃焼させるようにして、液体燃料の熱効率を高め、省エネルギー化を図ることができる。また、前記の第１燃焼用気体と第２燃焼用気体の酸素以外を空気とし、液体燃料の噴霧及び／又は一次燃焼において、酸素と空気を混合することにより、酸素だけで噴霧や一次燃焼させる場合に比べて、燃焼時における騒音を低下させることができるようになった。 As a result, in the liquid fuel combustion apparatus of the present invention, when the liquid fuel ejected from the tip of the liquid fuel supply nozzle is mixed with the combustion gas ejected from the surroundings and burned, the liquid fuel and oxygen are used. After the primary combustion with the mixed first combustion gas and / or the second combustion gas, the liquid fuel primary-combusted by the oxygen ejected from the oxygen supply nozzle is efficiently secondary-combusted in a wide range. Therefore, the thermal efficiency of the liquid fuel can be improved and energy can be saved. Further, in the spraying and / or primary combustion of the liquid fuel, the oxygen other than the oxygen of the first combustion gas and the second combustion gas is used as air, and by mixing oxygen and air, spraying or primary combustion is performed only with oxygen. Compared to the case, it has become possible to reduce the noise during combustion.

本発明の一実施形態において使用する液体燃料燃焼装置の概略断面説明図である。It is schematic cross-sectional explanatory view of the liquid fuel combustion apparatus used in one Embodiment of this invention. 前記の実施形態に使用する液体燃料燃焼装置において、液体燃料供給ノズルに適当量の液体燃料を供給して噴出させ、噴霧用気体供給ノズルから空気と酸素とを適当な割合に混合させた第１燃焼用気体を噴出させて前記の液体燃料を噴霧させると共に、一次燃焼用気体供給ノズルから空気と酸素とを適当な割合に混合させた第２燃焼用気体を噴出させて前記の液体燃料を一次燃焼させ、さらに一次燃焼用気体供給ノズルから離れた外周側に設けた酸素供給ノズルから適当量の酸素を噴出させて前記のオイルを二次燃焼させる状態を示した概略断面説明図である。In the liquid fuel combustion apparatus used in the above embodiment, the first is that an appropriate amount of liquid fuel is supplied to the liquid fuel supply nozzle and ejected, and air and oxygen are mixed in an appropriate ratio from the spray gas supply nozzle. The combustion gas is ejected to spray the liquid fuel, and the second combustion gas in which air and oxygen are mixed in an appropriate ratio is ejected from the primary combustion gas supply nozzle to spray the liquid fuel. It is a schematic cross-sectional explanatory view showing the state which shows the state which burns and further injects an appropriate amount of oxygen from the oxygen supply nozzle provided on the outer peripheral side away from the primary combustion gas supply nozzle, and secondary combustion of the said oil. 前記の実施形態に使用する液体燃料燃焼装置において、前記の噴霧用気体供給ノズルから第１燃焼用気体として適当量の空気だけを噴出させて前記の液体燃料を噴霧させる一方、一次燃焼用気体供給ノズルから第２燃焼用気体として適当量の酸素だけを噴出させて液体燃料を一次燃焼させ、その後、酸素供給ノズルから適当量の酸素を噴出させて前記の液体燃料を二次燃焼させる状態を示した概略断面説明図である。In the liquid fuel combustion apparatus used in the above embodiment, the liquid fuel is sprayed by ejecting only an appropriate amount of air as the first combustion gas from the spray gas supply nozzle, while supplying the primary combustion gas. A state is shown in which only an appropriate amount of oxygen is ejected from the nozzle as the second combustion gas to perform primary combustion of the liquid fuel, and then an appropriate amount of oxygen is ejected from the oxygen supply nozzle to perform secondary combustion of the liquid fuel. It is a schematic cross-sectional explanatory view. 前記の実施形態に使用する液体燃料燃焼装置において、前記の噴霧用気体供給ノズルから第１燃焼用気体として適当量の酸素だけを噴出させて前記の液体燃料を噴霧させる一方、一次燃焼用気体供給ノズルから第２燃焼用気体として適当量の空気だけを噴出させて液体燃料を一次燃焼させ、その後、酸素供給ノズルから適当量の酸素を噴出させて前記の液体燃料を二次燃焼させる状態を示した概略断面説明図である。In the liquid fuel combustion apparatus used in the above embodiment, the liquid fuel is sprayed by ejecting only an appropriate amount of oxygen as the first combustion gas from the spray gas supply nozzle, while supplying the primary combustion gas. A state is shown in which only an appropriate amount of air is ejected from the nozzle as the second combustion gas to perform primary combustion of the liquid fuel, and then an appropriate amount of oxygen is ejected from the oxygen supply nozzle to perform secondary combustion of the liquid fuel. It is a schematic cross-sectional explanatory view.

以下、本発明の実施形態に係る液体燃料燃焼装置を添付図面に基づいて具体的に説明する。なお、本発明に係る液体燃料燃焼装置は、下記の実施形態に示したものに限定されず、発明の要旨を変更しない範囲において、適宜変更して実施できるものである。 Hereinafter, the liquid fuel combustion apparatus according to the embodiment of the present invention will be specifically described with reference to the accompanying drawings. The liquid fuel combustion apparatus according to the present invention is not limited to the one shown in the following embodiment, and can be appropriately modified and implemented without changing the gist of the invention.

この実施形態においては、図１に示すように、炉１の炉壁１ａに設けた液体燃料燃焼装置１０の中心部に、オイル等の液体燃料を炉１内に向けて噴出させる液体燃料供給ノズル１１を設けると共に、この液体燃料供給ノズル１１に液体燃料を導く燃料供給管１１ｂに燃料調整バルブ１１ａを設け、この燃料調整バルブ１１ａによって液体燃料供給ノズル１１に供給する液体燃料の量を調整するようにしている。 In this embodiment, as shown in FIG. 1, a liquid fuel supply nozzle that ejects liquid fuel such as oil toward the inside of the furnace 1 at the center of the liquid fuel combustion device 10 provided on the furnace wall 1a of the furnace 1. 11 is provided, and a fuel adjustment valve 11a is provided in the fuel supply pipe 11b that guides the liquid fuel to the liquid fuel supply nozzle 11, and the amount of liquid fuel supplied to the liquid fuel supply nozzle 11 is adjusted by the fuel adjustment valve 11a. I have to.

また、この液体燃料供給ノズル１１の外周側に噴霧用気体供給ノズル１２を設け、この噴霧用気体供給ノズル１２の先端から第１燃焼用気体を噴出させて、前記の液体燃料供給ノズル１１の先端から噴出される液体燃料を霧状にして噴霧させるようにしている。 Further, a spray gas supply nozzle 12 is provided on the outer peripheral side of the liquid fuel supply nozzle 11, and the first combustion gas is ejected from the tip of the spray gas supply nozzle 12, and the tip of the liquid fuel supply nozzle 11 is ejected. The liquid fuel ejected from the gas is atomized and sprayed.

ここで、この噴霧用気体供給ノズル１２に第１燃焼用気体を供給するにあたっては、噴霧用気体供給ノズル１２に対して第１燃焼用気体を導く第１燃焼用気体供給パイプ１２ｂに、酸素を供給する酸素供給パイプ１２ｂ１と空気を供給する空気供給パイプ１２ｂ２とを接続させ、前記の酸素供給パイプ１２ｂ１に供給する酸素の量を調整する酸素調整バルブ１２ａ１を設けると共に、前記の空気供給パイプ１２ｂ２に供給する空気の量を調整する空気調整バルブ１２ａ２を設けている。 Here, in supplying the first combustion gas to the spray gas supply nozzle 12, oxygen is supplied to the first combustion gas supply pipe 12b that guides the first combustion gas to the spray gas supply nozzle 12. An oxygen adjusting valve 12a1 for connecting the supplying oxygen supply pipe 12b1 and the air supply pipe 12b2 for supplying air and adjusting the amount of oxygen supplied to the oxygen supply pipe 12b1 is provided, and the air supply pipe 12b2 is provided. An air adjusting valve 12a2 for adjusting the amount of supplied air is provided.

また、前記の噴霧用気体供給ノズル１２の外周側に一次燃焼用気体供給ノズル１３を設け、この一次燃焼用気体供給ノズル１３の先端から前記のように霧状にして噴霧された液体燃料に対して第２燃焼用気体を噴出させて、前記の液体燃料を一次燃焼させるようにしている。 Further, a primary combustion gas supply nozzle 13 is provided on the outer peripheral side of the spray gas supply nozzle 12, and the liquid fuel sprayed from the tip of the primary combustion gas supply nozzle 13 in the form of atomization as described above is provided. The second combustion gas is ejected to primaryly burn the liquid fuel.

ここで、この一次燃焼用気体供給ノズル１３に第２燃焼用気体を供給するにあたっては、一次燃焼用気体供給ノズル１３に対して第２燃焼用気体を導く第２燃焼用気体供給パイプ１３ｂに、酸素を供給する酸素供給パイプ１３ｂ１と空気を供給する空気供給パイプ１３ｂ２とを接続させ、前記の酸素供給パイプ１３ｂ１に供給する酸素の量を調整する酸素調整バルブ１３ａ１を設けると共に、前記の空気供給パイプ１３ｂ２に供給する空気の量を調整する空気調整バルブ１３ａ２を設けている。 Here, in supplying the second combustion gas to the primary combustion gas supply nozzle 13, the second combustion gas supply pipe 13b that guides the second combustion gas to the primary combustion gas supply nozzle 13 is connected to the second combustion gas supply pipe 13b. An oxygen adjusting valve 13a1 for connecting an oxygen supply pipe 13b1 for supplying oxygen and an air supply pipe 13b2 for supplying air and adjusting the amount of oxygen supplied to the oxygen supply pipe 13b1 is provided, and the air supply pipe is provided. An air adjusting valve 13a2 for adjusting the amount of air supplied to 13b2 is provided.

そして、前記の一次燃焼用気体供給ノズル１３から離れた外周側の炉壁１ａの位置に複数の酸素供給ノズル１４を設け、各酸素供給ノズル１４の先端から前記のように一次燃焼されている液体燃料に対して酸素を噴出させて、液体燃料を二次燃焼させるようにしている。 Then, a plurality of oxygen supply nozzles 14 are provided at the position of the furnace wall 1a on the outer peripheral side away from the primary combustion gas supply nozzle 13, and the liquid that is primarily burned from the tip of each oxygen supply nozzle 14 as described above. Oxygen is ejected from the fuel so that the liquid fuel is secondarily burned.

ここで、前記の各酸素供給ノズル１４に酸素を供給するにあたっては、各酸素供給ノズル１４に対してそれぞれ酸素を導く酸素供給パイプ１４ｂを設け、各酸素供給パイプ１４ｂにそれぞれ酸素供給ノズル１４に供給する酸素の量を調整する酸素調整バルブ１４ａを設けている。 Here, in supplying oxygen to each of the oxygen supply nozzles 14, oxygen supply pipes 14b for guiding oxygen are provided for each oxygen supply nozzle 14, and each oxygen supply pipe 14b is supplied to each oxygen supply nozzle 14. An oxygen adjusting valve 14a for adjusting the amount of oxygen to be produced is provided.

次に、前記の液体燃料燃焼装置１０において、オイル等の液体燃料を前記の液体燃料供給ノズル１１の先端から炉１内に向けて噴出させて燃焼させる例について説明する。なお、図中の各バルブは、開の場合を白抜きで、閉の場合を黒塗りで示した。 Next, in the liquid fuel combustion apparatus 10, an example in which a liquid fuel such as oil is ejected from the tip of the liquid fuel supply nozzle 11 toward the inside of the furnace 1 and burned will be described. Each valve in the figure is shown in white when it is open and in black when it is closed.

ここで、図２に示す第１の例においては、前記の燃料調整バルブ１１ａによって燃料供給管１１ｂを通して液体燃料供給ノズル１１に供給する液体燃料の量を調整し、この液体燃料供給ノズル１１の先端から液体燃料を炉１内に向けて噴出させると共に、前記の噴霧用気体供給ノズル１２の先端から第１燃焼用気体を噴出させて、液体燃料供給ノズル１１の先端から噴出される液体燃料を霧状にして噴霧させるようにしている。 Here, in the first example shown in FIG. 2, the amount of liquid fuel supplied to the liquid fuel supply nozzle 11 through the fuel supply pipe 11b is adjusted by the fuel adjustment valve 11a, and the tip of the liquid fuel supply nozzle 11 is adjusted. The liquid fuel is ejected toward the inside of the furnace 1 and the first combustion gas is ejected from the tip of the spray gas supply nozzle 12 to atomize the liquid fuel ejected from the tip of the liquid fuel supply nozzle 11. It is made into a shape and sprayed.

そして、このように噴霧用気体供給ノズル１２の先端から第１燃焼用気体を噴出させて、液体燃料供給ノズル１１の先端から噴出される液体燃料を霧状にして噴霧させるにあたり、第１の例においては、噴霧用気体供給ノズル１２に第１燃焼用気体を導く第１燃焼用気体供給パイプ１２ｂに接続された、酸素を供給する酸素供給パイプ１２ｂ１に設けた酸素調整バルブ１２ａ１と、空気を供給する空気供給パイプ１２ｂ２に設けた空気調整バルブ１２ａ２とをそれぞれ所定量開けて、酸素と空気とが所定割合になった第１燃焼用気体を、前記の第１燃焼用気体供給パイプ１２ｂから噴霧用気体供給ノズル１２に供給し、この第１燃焼用気体を噴霧用気体供給ノズル１２の先端から第１燃焼用気体を噴出させて、液体燃料を噴霧させるようにしている。 Then, in this way, the first combustion gas is ejected from the tip of the spray gas supply nozzle 12, and the liquid fuel ejected from the tip of the liquid fuel supply nozzle 11 is atomized and sprayed. In the above, the oxygen adjusting valve 12a1 provided in the oxygen supply pipe 12b1 for supplying oxygen, which is connected to the first combustion gas supply pipe 12b for guiding the first combustion gas to the spray gas supply nozzle 12, and the air are supplied. The air adjusting valve 12a2 provided on the air supply pipe 12b2 is opened by a predetermined amount, and the first combustion gas having a predetermined ratio of oxygen and air is sprayed from the first combustion gas supply pipe 12b. It is supplied to the gas supply nozzle 12, and the first combustion gas is ejected from the tip of the spray gas supply nozzle 12 to spray the liquid fuel.

また、前記の噴霧用気体供給ノズル１２の外周側に設けた一次燃焼用気体供給ノズル１３の先端から第２燃焼用気体を、前記のように霧状に噴霧された液体燃料に向けて噴出させて、前記の液体燃料を一次燃焼させるようにしている。 Further, the second combustion gas is ejected from the tip of the primary combustion gas supply nozzle 13 provided on the outer peripheral side of the spray gas supply nozzle 12 toward the liquid fuel sprayed in the form of a mist as described above. Therefore, the liquid fuel is primarily combusted.

ここで、このように一次燃焼用気体供給ノズル１３の先端から第２燃焼用気体を霧状に噴霧された液体燃料に向けて噴出させて、液体燃料を一次燃焼させるにあたり、第１の例においては、一次燃焼用気体供給ノズル１３に第２燃焼用気体を導く第２燃焼用気体供給パイプ１３ｂに接続された、酸素を供給する酸素供給パイプ１３ｂ１に設けた酸素調整バルブ１３ａ１と、空気を供給する空気供給パイプ１３ｂ２に設けた空気調整バルブ１３ａ２とをそれぞれ所定量開けて、酸素と空気とが所定割合になった第２燃焼用気体を、前記の第２燃焼用気体供給パイプ１３ｂから一次燃焼用気体供給ノズル１３に供給し、この第２焼用気体を一次燃焼用気体供給ノズル１３の先端から霧状に噴霧された液体燃料に向けて噴出させて、液体燃料を一次燃焼されるようにしている。なお、このように噴霧用気体供給ノズル１２の先端から噴出させる第１燃焼用気体と一次燃焼用気体供給ノズル１３の先端から噴出させる第２燃焼用気体とに、空気に酸素を混合させた燃焼用気体を用いると、このように混合された酸素によって霧状に噴霧された液体燃料が効率よく一次燃焼されるようになる。 Here, in the first example, when the second combustion gas is ejected from the tip of the primary combustion gas supply nozzle 13 toward the atomized liquid fuel to perform the primary combustion of the liquid fuel. Is connected to the second combustion gas supply pipe 13b that guides the second combustion gas to the primary combustion gas supply nozzle 13, and supplies air with the oxygen adjustment valve 13a1 provided in the oxygen supply pipe 13b1 that supplies oxygen. The air adjusting valve 13a2 provided on the air supply pipe 13b2 is opened by a predetermined amount, and the second combustion gas having a predetermined ratio of oxygen and air is first burned from the second combustion gas supply pipe 13b. It is supplied to the gas supply nozzle 13, and the second combustion gas is ejected from the tip of the primary combustion gas supply nozzle 13 toward the liquid fuel sprayed in the form of a mist so that the liquid fuel is primarily burned. ing. Combustion in which oxygen is mixed with air in the first combustion gas ejected from the tip of the spray gas supply nozzle 12 and the second combustion gas ejected from the tip of the primary combustion gas supply nozzle 13 in this way. When a gas is used, the liquid fuel atomized by the oxygen mixed in this way can be efficiently first combusted.

次いで、前記のように液体燃料供給ノズル１１の先端から炉１内に向けて噴出させて一次燃焼させた液体燃料に対し、前記のように一次燃焼用気体供給ノズル１３から離れた外周側の炉壁１ａの位置に設けた各酸素供給ノズル１４の先端から酸素を噴出させて、一次燃焼された液体燃料をさらに二次燃焼させるようにしている。なお、このように各酸素供給ノズル１４の先端から酸素を噴出させて、一次燃焼された液体燃料をさらに二次燃焼させるにあたっては、各酸素供給ノズル１４に酸素を導く各酸素供給パイプ１４ｂに設けられた酸素調整バルブ１４ａにより、各酸素供給パイプ１４ｂを通して各酸素供給ノズル１４の先端から噴出させる酸素の量を調整して、液体燃料供給ノズル１１から噴出された液体燃料が適切に二次燃焼されるようにしている。 Next, with respect to the liquid fuel that was ejected from the tip of the liquid fuel supply nozzle 11 toward the inside of the furnace 1 and was primarily combusted as described above, the furnace on the outer peripheral side away from the gas supply nozzle 13 for primary combustion as described above. Oxygen is ejected from the tip of each oxygen supply nozzle 14 provided at the position of the wall 1a so that the primary burned liquid fuel is further secondarily burned. In this way, when oxygen is ejected from the tip of each oxygen supply nozzle 14 and the primary burned liquid fuel is further secondarily burned, it is provided in each oxygen supply pipe 14b that guides oxygen to each oxygen supply nozzle 14. The oxygen adjusting valve 14a is adjusted to adjust the amount of oxygen ejected from the tip of each oxygen supply nozzle 14 through each oxygen supply pipe 14b, and the liquid fuel ejected from the liquid fuel supply nozzle 11 is appropriately secondary burned. I am trying to do it.

ここで、前記のように液体燃料供給ノズル１１の先端から炉１内に向けて噴出させた液体燃料に対し、噴霧用気体供給ノズル１２や一次燃焼用気体供給ノズル１３から酸素と空気とが所定割合になった燃焼用気体を噴出させて、前記の液体燃料を一次燃焼させると、液体燃料が効率よく一次燃焼されるようになる。その後、前記のように各酸素供給ノズル１４の先端から適当量の酸素を噴出させて、効率よく一次燃焼された液体燃料をさらに二次燃焼させるようにすると、一次燃焼された液体燃料を広い範囲で効率よく二次燃焼させて、液体燃料の熱効率をさらに高め、省エネルギー化を図ることができると共に、燃焼用気体に多くの酸素をまとめて供給させて液体燃料を燃焼させる場合に比べて、燃焼時に発生する騒音を低下させることができるようになる。 Here, with respect to the liquid fuel ejected from the tip of the liquid fuel supply nozzle 11 toward the inside of the furnace 1 as described above, oxygen and air are predetermined from the spray gas supply nozzle 12 and the primary combustion gas supply nozzle 13. When the above-mentioned liquid fuel is first-combusted by ejecting a ratio of combustion gas, the liquid fuel is efficiently first-combusted. After that, when an appropriate amount of oxygen is ejected from the tip of each oxygen supply nozzle 14 as described above to efficiently perform the secondary combustion of the primary burned liquid fuel, the primary burned liquid fuel is spread over a wide range. It is possible to further improve the thermal efficiency of the liquid fuel and save energy by efficiently performing secondary combustion, and at the same time, it burns compared to the case where a large amount of oxygen is collectively supplied to the combustion gas to burn the liquid fuel. It becomes possible to reduce the noise that sometimes occurs.

また、図３に示す第２の例においても、前記の第１の例と同様に、前記の燃料調整バルブ１１ａによって燃料供給管１１ｂを通して液体燃料供給ノズル１１に供給する液体燃料の量を調整し、この液体燃料供給ノズル１１の先端から液体燃料を炉１内に向けて噴出させると共に、前記の噴霧用気体供給ノズル１２の先端から第１燃焼用気体を噴出させて、液体燃料供給ノズル１１の先端から噴出される液体燃料を霧状にして噴霧させるようにしている。 Further, in the second example shown in FIG. 3, similarly to the first example, the amount of liquid fuel supplied to the liquid fuel supply nozzle 11 through the fuel supply pipe 11b is adjusted by the fuel adjustment valve 11a. The liquid fuel is ejected from the tip of the liquid fuel supply nozzle 11 toward the inside of the furnace 1, and the first combustion gas is ejected from the tip of the spray gas supply nozzle 12 to form the liquid fuel supply nozzle 11. The liquid fuel ejected from the tip is atomized and sprayed.

ここで、このように噴霧用気体供給ノズル１２の先端から第１燃焼用気体を噴出させて、液体燃料供給ノズル１１の先端から噴出される液体燃料を霧状にして噴霧させるにあたり、第２の例においては、噴霧用気体供給ノズル１２に第１燃焼用気体を導く第１燃焼用気体供給パイプ１２ｂに接続された、酸素を供給する酸素供給パイプ１２ｂ１に設けた酸素調整バルブ１２ａ１を閉じる一方、空気を供給する空気供給パイプ１２ｂ２に設けた空気調整バルブ１２ａ２を所定量開けて、所定量の空気からなる第１燃焼用気体を、前記の第１燃焼用気体供給パイプ１２ｂから噴霧用気体供給ノズル１２に供給し、この第１燃焼用気体を噴霧用気体供給ノズル１２の先端から第１燃焼用気体を噴出させて、液体燃料を噴霧させるようにしている。 Here, when the first combustion gas is ejected from the tip of the spray gas supply nozzle 12 in this way and the liquid fuel ejected from the tip of the liquid fuel supply nozzle 11 is atomized and sprayed, the second In the example, while closing the oxygen adjusting valve 12a1 provided in the oxygen supply pipe 12b1 for supplying oxygen, which is connected to the first combustion gas supply pipe 12b for guiding the first combustion gas to the spray gas supply nozzle 12. The air adjustment valve 12a2 provided on the air supply pipe 12b2 for supplying air is opened by a predetermined amount, and the first combustion gas composed of the predetermined amount of air is supplied from the first combustion gas supply pipe 12b to the spray gas supply nozzle. No. 12 is supplied, and the first combustion gas is ejected from the tip of the spray gas supply nozzle 12 to spray the liquid fuel.

また、前記の噴霧用気体供給ノズル１２の外周側に設けた一次燃焼用気体供給ノズル１３の先端から第２燃焼用気体を、前記のように霧状に噴霧された液体燃料に向けて噴出させて、前記の液体燃料を一次燃焼させるにあたり、第２の例においては、一次燃焼用気体供給ノズル１３に第２燃焼用気体を導く第２燃焼用気体供給パイプ１３ｂに接続された、酸素を供給する酸素供給パイプ１３ｂ１に設けた酸素調整バルブ１３ａ１を所定量開ける一方、空気を供給する空気供給パイプ１３ｂ２に設けた空気調整バルブ１３ａ２を閉じて、所定量の酸素からなる第１燃焼用気体を、前記の第２燃焼用気体供給パイプ１３ｂから一次燃焼用気体供給ノズル１３に供給し、この第２焼用気体を一次燃焼用気体供給ノズル１３の先端から霧状に噴霧された液体燃料に向けて噴出させて、液体燃料を一次燃焼されるようにしている。 Further, the second combustion gas is ejected from the tip of the primary combustion gas supply nozzle 13 provided on the outer peripheral side of the spray gas supply nozzle 12 toward the liquid fuel sprayed in the form of a mist as described above. In the second example, oxygen is supplied to the primary combustion gas supply nozzle 13 connected to the second combustion gas supply pipe 13b that guides the second combustion gas to the primary combustion of the liquid fuel. While opening the oxygen adjusting valve 13a1 provided in the oxygen supply pipe 13b1 by a predetermined amount, the air adjusting valve 13a2 provided in the air supply pipe 13b2 for supplying air is closed, and the first combustion gas composed of a predetermined amount of oxygen is introduced. The second combustion gas supply pipe 13b supplies the primary combustion gas supply nozzle 13, and the second combustion gas is directed toward the liquid fuel atomized from the tip of the primary combustion gas supply nozzle 13. It is ejected so that the liquid fuel is primarily burned.

ここで、このように噴霧用気体供給ノズル１２の先端から所定量の空気からなる第１燃焼用気体を噴出させる一方、一次燃焼用気体供給ノズル１３の先端から所定量の酸素からなる第２燃焼用気体を噴出させるようにした場合においても、前記の第１の例の場合と同様に、空気の他に適当量の酸素が混合されて、霧状に噴霧された液体燃料が効率よく一次燃焼されるようになる。 Here, while the first combustion gas composed of a predetermined amount of air is ejected from the tip of the spray gas supply nozzle 12 in this way, the second combustion composed of a predetermined amount of oxygen is ejected from the tip of the primary combustion gas supply nozzle 13. Even when the gas is ejected, as in the case of the first example above, an appropriate amount of oxygen is mixed in addition to air, and the liquid fuel sprayed in the form of mist is efficiently used for primary combustion. Will be done.

その後は、前記の第１の例の場合と同様に、前記のように一次燃焼させた液体燃料に対して、前記の各酸素供給ノズル１４の先端から酸素を噴出させ、一次燃焼された液体燃料をさらに二次燃焼させるようにしている。 After that, as in the case of the first example, oxygen is ejected from the tips of the oxygen supply nozzles 14 to the liquid fuel that has been primarily burned as described above, and the liquid fuel that has been primarily burned is then discharged. Is further secondarily burned.

このようにすると、前記の第１の例の場合と同様に、効率よく一次燃焼された液体燃料をさらに広い範囲で効率よく二次燃焼させて熱効率をさらに高めて、省エネルギー化を図ることができると共に、燃焼用気体に酸素を供給させて液体燃料を燃焼させる場合に生じる燃焼時の騒音を低下させることができるようになる。 In this way, as in the case of the first example described above, the liquid fuel that has been efficiently primary-combusted can be efficiently secondary-combusted in a wider range to further improve the thermal efficiency and save energy. At the same time, it becomes possible to reduce the combustion noise generated when oxygen is supplied to the combustion gas to burn the liquid fuel.

また、図４に示す第３の例においても、前記の第１及び第２の例と同様に、前記の燃料調整バルブ１１ａによって燃料供給管１１ｂを通して液体燃料供給ノズル１１に供給する液体燃料の量を調整し、この液体燃料供給ノズル１１の先端から液体燃料を炉１内に向けて噴出させると共に、前記の噴霧用気体供給ノズル１２の先端から第１燃焼用気体を噴出させて、液体燃料供給ノズル１１の先端から噴出される液体燃料を霧状にして噴霧させるようにしている。 Further, also in the third example shown in FIG. 4, the amount of liquid fuel supplied to the liquid fuel supply nozzle 11 through the fuel supply pipe 11b by the fuel adjustment valve 11a is the same as in the first and second examples. Is adjusted, and the liquid fuel is ejected from the tip of the liquid fuel supply nozzle 11 toward the inside of the furnace 1 and the first combustion gas is ejected from the tip of the spray gas supply nozzle 12 to supply the liquid fuel. The liquid fuel ejected from the tip of the nozzle 11 is atomized and sprayed.

ここで、このように噴霧用気体供給ノズル１２の先端から第１燃焼用気体を噴出させて、液体燃料供給ノズル１１の先端から噴出される液体燃料を霧状にして噴霧させるにあたり、第３の例においては、噴霧用気体供給ノズル１２に第１燃焼用気体を導く第１燃焼用気体供給パイプ１２ｂに接続された、酸素を供給する酸素供給パイプ１２ｂ１に設けた酸素調整バルブ１２ａ１を所定量開ける一方、空気を供給する空気供給パイプ１２ｂ２に設けた空気調整バルブ１２ａ２を閉じて、所定量の酸素からなる第１燃焼用気体を、前記の第１燃焼用気体供給パイプ１２ｂから噴霧用気体供給ノズル１２に供給し、この第１燃焼用気体を噴霧用気体供給ノズル１２の先端から第１燃焼用気体を噴出させて、液体燃料を噴霧させるようにしている。 Here, when the first combustion gas is ejected from the tip of the spray gas supply nozzle 12 in this way and the liquid fuel ejected from the tip of the liquid fuel supply nozzle 11 is atomized and sprayed, a third In the example, the oxygen adjusting valve 12a1 provided in the oxygen supply pipe 12b1 for supplying oxygen, which is connected to the first combustion gas supply pipe 12b for guiding the first combustion gas to the spray gas supply nozzle 12, is opened by a predetermined amount. On the other hand, the air adjusting valve 12a2 provided in the air supply pipe 12b2 for supplying air is closed, and the first combustion gas composed of a predetermined amount of oxygen is supplied from the first combustion gas supply pipe 12b to the spray gas supply nozzle. No. 12 is supplied, and the first combustion gas is ejected from the tip of the spray gas supply nozzle 12 to spray the liquid fuel.

また、前記の噴霧用気体供給ノズル１２の外周側に設けた一次燃焼用気体供給ノズル１３の先端から第２燃焼用気体を、前記のように霧状に噴霧された液体燃料に向けて噴出させて、前記の液体燃料を一次燃焼させるにあたり、第３の例においては、一次燃焼用気体供給ノズル１３に第２燃焼用気体を導く第２燃焼用気体供給パイプ１３ｂに接続された、酸素を供給する酸素供給パイプ１３ｂ１に設けた酸素調整バルブ１３ａ１を閉じる一方、空気を供給する空気供給パイプ１３ｂ２に設けた空気調整バルブ１３ａ２を所定量開けて、所定量の空気からなる第２燃焼用気体を、前記の第２燃焼用気体供給パイプ１３ｂから一次燃焼用気体供給ノズル１３に供給し、この第１燃焼用気体を一次燃焼用気体供給ノズル１３の先端から霧状に噴霧された液体燃料に向けて噴出させて、液体燃料を一次燃焼されるようにしている。 Further, the second combustion gas is ejected from the tip of the primary combustion gas supply nozzle 13 provided on the outer peripheral side of the spray gas supply nozzle 12 toward the liquid fuel sprayed in the form of a mist as described above. In the third example, oxygen is supplied to the primary combustion gas supply nozzle 13 connected to the second combustion gas supply pipe 13b for guiding the second combustion gas to the primary combustion of the liquid fuel. While closing the oxygen adjusting valve 13a1 provided in the oxygen supply pipe 13b1, the air adjusting valve 13a2 provided in the air supply pipe 13b2 for supplying air is opened by a predetermined amount, and a second combustion gas composed of a predetermined amount of air is introduced. The first combustion gas is supplied from the second combustion gas supply pipe 13b to the primary combustion gas supply nozzle 13, and the first combustion gas is directed toward the liquid fuel atomized from the tip of the primary combustion gas supply nozzle 13. It is ejected so that the liquid fuel is primarily burned.

ここで、このように噴霧用気体供給ノズル１２の先端から所定量の酸素からなる第１燃焼用気体を噴出させる一方、一次燃焼用気体供給ノズル１３の先端から所定量の空気からなる第２燃焼用気体を噴出させるようにした場合においても、前記の第１及び第２の例の場合と同様に、空気の他に適当量の酸素が混合されて、霧状に噴霧された液体燃料が効率よく一次燃焼されるようになる。 Here, while the first combustion gas composed of a predetermined amount of oxygen is ejected from the tip of the spray gas supply nozzle 12 in this way, the second combustion composed of a predetermined amount of air is ejected from the tip of the primary combustion gas supply nozzle 13. Even when the gas is ejected, as in the case of the first and second examples above, the liquid fuel in which an appropriate amount of oxygen is mixed in addition to the air and sprayed in the form of a mist is efficient. It will be burned first.

その後は、前記の第１及び第２の例の場合と同様に、前記のように一次燃焼させた液体燃料に対して、前記の各酸素供給ノズル１４の先端から酸素を噴出させ、一次燃焼された液体燃料をさらに二次燃焼させるようにしている。 After that, as in the case of the first and second examples, oxygen is ejected from the tip of each of the oxygen supply nozzles 14 to the liquid fuel that has been primarily burned as described above, and the liquid fuel is first burned. The liquid fuel is further burned for secondary combustion.

このようにすると、前記の第１及び第２の例の場合と同様に、効率よく一次燃焼された液体燃料をさらに広い範囲で効率よく二次燃焼させて熱効率をさらに高めて、省エネルギー化を図ることができると共に、燃焼用気体に酸素を供給させて液体燃料を燃焼させる場合に生じる燃焼時の騒音を低下させることができるようになる。 In this way, as in the case of the first and second examples, the liquid fuel that has been efficiently primary-combusted is efficiently secondarily burned in a wider range to further improve the thermal efficiency and save energy. At the same time, it becomes possible to reduce the combustion noise generated when oxygen is supplied to the combustion gas to burn the liquid fuel.

ここで、この実施形態における液体燃料燃焼装置１０においては、液体燃料供給ノズル１１の外周側に設ける噴霧用気体供給ノズル１２に第１燃焼用気体を導く第１燃焼用気体供給パイプ１２ｂに対して、酸素を供給する酸素供給パイプ１２ｂ１と空気を供給する空気供給パイプ１２ｂ２とを接続させると共に、この噴霧用気体供給ノズル１２の外周側に設ける一次燃焼用気体供給ノズル１３に第２燃焼用気体を導く第２燃焼用気体供給パイプ１３ｂに対して、酸素を供給する酸素供給パイプ１３ｂ１と空気を供給する空気供給パイプ１３ｂ２とを接続させるようにしているが、前記の第１燃焼用気体供給パイプ１２ｂと第２燃焼用気体供給パイプ１３ｂとの両方に、酸素を供給する酸素供給パイプ１２ｂ１、１３ｂ１と、空気を供給する空気供給パイプ１２ｂ２、１３ｂ２とを接続させる必要はない。 Here, in the liquid fuel combustion apparatus 10 of this embodiment, with respect to the first combustion gas supply pipe 12b that guides the first combustion gas to the spray gas supply nozzle 12 provided on the outer peripheral side of the liquid fuel supply nozzle 11. , The oxygen supply pipe 12b1 for supplying oxygen and the air supply pipe 12b2 for supplying air are connected, and the second combustion gas is supplied to the primary combustion gas supply nozzle 13 provided on the outer peripheral side of the spray gas supply nozzle 12. The oxygen supply pipe 13b1 for supplying oxygen and the air supply pipe 13b2 for supplying air are connected to the guiding second combustion gas supply pipe 13b, but the first combustion gas supply pipe 12b is described above. It is not necessary to connect the oxygen supply pipes 12b1 and 13b1 for supplying oxygen and the air supply pipes 12b2 and 13b2 for supplying air to both the gas supply pipe 13b for combustion and the gas supply pipe 13b for combustion.

図示していないが、例えば、噴霧用気体供給ノズル１２に第１燃焼用気体を導く第１燃焼用気体供給パイプ１２ｂに対して、酸素を供給する酸素供給パイプ１２ｂ１だけを接続させる一方、一次燃焼用気体供給ノズル１３に第２燃焼用気体を導く第２燃焼用気体供給パイプ１３ｂに対して、空気を供給する空気供給パイプ１３ｂ２だけを接続させるようにすることや、またその場合と逆のパイプだけを接続させるようにすることも可能である。 Although not shown, for example, only the oxygen supply pipe 12b1 that supplies oxygen is connected to the first combustion gas supply pipe 12b that guides the first combustion gas to the spray gas supply nozzle 12, while primary combustion. Only the air supply pipe 13b2 that supplies air is connected to the second combustion gas supply pipe 13b that guides the second combustion gas to the gas supply nozzle 13, or the opposite pipe. It is also possible to connect only.

１ ：炉
１ａ ：炉壁
１０ ：液体燃料燃焼装置
１１ ：液体燃料供給ノズル
１１ａ ：燃料調整バルブ
１１ｂ ：燃料供給管
１２ ：噴霧用気体供給ノズル
１２ａ１ ：酸素調整バルブ
１２ａ２ ：空気調整バルブ
１２ｂ ：第１燃焼用気体供給パイプ
１２ｂ１ ：酸素供給パイプ
１２ｂ２ ：空気供給パイプ
１３ ：一次燃焼用気体供給ノズル
１３ａ１ ：酸素調整バルブ
１３ａ２ ：空気調整バルブ
１３ｂ ：第２燃焼用気体供給パイプ
１３ｂ１ ：酸素供給パイプ
１３ｂ２ ：空気供給パイプ
１４ ：酸素供給ノズル
１４ａ ：酸素調整バルブ
１４ｂ ：酸素供給パイプ
1: Furnace 1a: Furnace wall 10: Liquid fuel combustion device 11: Liquid fuel supply nozzle 11a: Fuel adjustment valve 11b: Fuel supply pipe 12: Gas supply nozzle for spraying 12a1: Oxygen adjustment valve 12a2: Air adjustment valve 12b: First Gas supply pipe for combustion 12b1: Oxygen supply pipe 12b2: Air supply pipe 13: Gas supply nozzle for primary combustion 13a1: Oxygen adjustment valve 13a2: Air adjustment valve 13b: Second combustion gas supply pipe 13b1: Oxygen supply pipe 13b2: Air Supply pipe 14: Oxygen supply nozzle 14a: Oxygen adjustment valve 14b: Oxygen supply pipe

Claims (2)

液体燃料供給ノズルの先端から噴出される液体燃料を、その周囲から噴出される燃焼用気体と混合させて燃焼させる液体燃料燃焼装置において、前記の液体燃料供給ノズルの外周側に、この液体燃料供給ノズルの先端から噴出される液体燃料を霧状にして噴霧させる第１燃焼用気体を供給する噴霧用気体供給ノズルを設けると共に、この噴霧用気体供給ノズルの外周側に一次燃焼用気体供給ノズルを設け、この一次燃焼用気体供給ノズルから前記の霧状にして噴霧された液体燃料に対して第２燃焼用気体を噴出させて、前記の液体燃料を一次燃焼させるにあたり、前記の噴霧用気体供給ノズルに供給する第１燃焼用気体と一次燃焼用気体供給ノズルに供給する第２燃焼用気体との少なくとも一方に酸素を導入させると共に、前記の一次燃焼用気体供給ノズルから離れた外周側の位置に酸素供給ノズルを設け、この酸素供給ノズルから前記の一次燃焼されている液体燃料に酸素を噴出させて液体燃料を二次燃焼させることを特徴とする液体燃料燃焼装置。 In a liquid fuel combustion device that mixes liquid fuel ejected from the tip of a liquid fuel supply nozzle with combustion gas ejected from the surroundings and burns the liquid fuel, the liquid fuel is supplied to the outer peripheral side of the liquid fuel supply nozzle. A spray gas supply nozzle for supplying the first combustion gas that atomizes and sprays the liquid fuel ejected from the tip of the nozzle is provided, and a primary combustion gas supply nozzle is provided on the outer peripheral side of the spray gas supply nozzle. When the second combustion gas is ejected from the primary combustion gas supply nozzle to the atomized liquid fuel and the liquid fuel is primary-combusted, the spray gas supply is performed. Oxygen is introduced into at least one of the first combustion gas supplied to the nozzle and the second combustion gas supplied to the primary combustion gas supply nozzle, and the position on the outer peripheral side away from the primary combustion gas supply nozzle. A liquid fuel combustion apparatus characterized in that an oxygen supply nozzle is provided in the water supply nozzle, and oxygen is ejected from the oxygen supply nozzle to the liquid fuel that is primarily burned to cause secondary combustion of the liquid fuel. 請求項１に記載の液体燃料燃焼装置において、前記の液体燃料供給ノズルに供給する液体燃料の量を調整する燃料調整バルブを設けると共に、前記の第１燃焼用気体を供給する噴霧用気体供給ノズルと、前記の第２燃焼用気体を供給する一次燃焼用気体供給ノズルとの少なくとも一方に、前記の第１燃焼用気体及び／又は第２燃焼用気体における空気と酸素との比率を調整する調整バルブを設けたことを特徴とする液体燃料燃焼装置。
In the liquid fuel combustion apparatus according to claim 1, a fuel adjusting valve for adjusting the amount of liquid fuel supplied to the liquid fuel supply nozzle is provided, and a spray gas supply nozzle for supplying the first combustion gas is provided. And the adjustment to adjust the ratio of air and oxygen in the first combustion gas and / or the second combustion gas to at least one of the primary combustion gas supply nozzle for supplying the second combustion gas. A liquid fuel combustion device characterized by having a valve.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021214922A1 (en) 2021-03-29 2022-09-29 Ngk Insulators, Ltd. HONEYCOMB FILTER

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5847904A (en) * 1981-09-14 1983-03-19 Osaka Gas Co Ltd Oil burner
JPH07233920A (en) * 1994-02-23 1995-09-05 Chugai Ro Co Ltd Burning method for oxygen burner
US5762486A (en) * 1996-02-21 1998-06-09 Praxair Technology, Inc. Toroidal vortex combustion for low heating value liquid
JPH11294722A (en) * 1998-04-16 1999-10-29 Osaka Gas Co Ltd Oxygen burner
JP2001263608A (en) * 2000-03-22 2001-09-26 Nippon Sanso Corp Burner for oxygen-enriched liquid fuel
JP2001355808A (en) * 2000-06-16 2001-12-26 Nippon Sanso Corp LOW-NOx BURNER AND ITS OPERATING METHOD
JP2002356331A (en) * 2001-03-02 2002-12-13 Boc Group Inc:The Method for heating glass melting furnace equipped with roof-mounted, staged combustion oxygen-fuel burner
JP2012154561A (en) * 2011-01-26 2012-08-16 Taiyo Nippon Sanso Corp Burner combustion method
CN107238085A (en) * 2017-06-30 2017-10-10 中国恩菲工程技术有限公司 Liquid waste molten bath submerged combustion gun system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5424323A (en) 1977-07-25 1979-02-23 Nippon Steel Corp External mixing type oil burner
JPS633206A (en) 1986-06-23 1988-01-08 Asahi Optical Co Ltd Optical thickness measuring instrument
CN101201163B (en) * 2006-12-04 2010-11-03 普莱克斯技术有限公司 Combustion with variable oxidant and low NOx burner
JP5437734B2 (en) * 2009-08-07 2014-03-12 株式会社荏原製作所 Combustion exhaust gas treatment equipment
CN103822207B (en) * 2012-11-16 2017-06-06 航天长征化学工程股份有限公司 Variable pressure and variable working condition oil burner
CN107763663A (en) * 2016-08-23 2018-03-06 翼特新能源科技（上海）有限公司 Solid fuel combustion apparatus and its application method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5847904A (en) * 1981-09-14 1983-03-19 Osaka Gas Co Ltd Oil burner
JPH07233920A (en) * 1994-02-23 1995-09-05 Chugai Ro Co Ltd Burning method for oxygen burner
US5762486A (en) * 1996-02-21 1998-06-09 Praxair Technology, Inc. Toroidal vortex combustion for low heating value liquid
JPH11294722A (en) * 1998-04-16 1999-10-29 Osaka Gas Co Ltd Oxygen burner
JP2001263608A (en) * 2000-03-22 2001-09-26 Nippon Sanso Corp Burner for oxygen-enriched liquid fuel
JP2001355808A (en) * 2000-06-16 2001-12-26 Nippon Sanso Corp LOW-NOx BURNER AND ITS OPERATING METHOD
JP2002356331A (en) * 2001-03-02 2002-12-13 Boc Group Inc:The Method for heating glass melting furnace equipped with roof-mounted, staged combustion oxygen-fuel burner
JP2012154561A (en) * 2011-01-26 2012-08-16 Taiyo Nippon Sanso Corp Burner combustion method
CN107238085A (en) * 2017-06-30 2017-10-10 中国恩菲工程技术有限公司 Liquid waste molten bath submerged combustion gun system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021214922A1 (en) 2021-03-29 2022-09-29 Ngk Insulators, Ltd. HONEYCOMB FILTER

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