TWI686569B - Radiant tube burner equipment - Google Patents

Radiant tube burner equipment Download PDF

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TWI686569B
TWI686569B TW106105048A TW106105048A TWI686569B TW I686569 B TWI686569 B TW I686569B TW 106105048 A TW106105048 A TW 106105048A TW 106105048 A TW106105048 A TW 106105048A TW I686569 B TWI686569 B TW I686569B
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radiant tube
combustion
exhaust gas
gas
burner
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TW106105048A
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TW201736776A (en
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川端健介
惠上寿雄
有松毅
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日商中外爐工業股份有限公司
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/12—Radiant burners
    • F23D14/126—Radiant burners cooperating with refractory wall surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/90—Injecting reactants
    • 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 
    • F23C3/00—Combustion apparatus characterised by the shape of the combustion chamber
    • 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 
    • F23C99/00—Subject-matter not provided for in other groups of this subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/66—Preheating the combustion air or gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/08—Arrangements of devices for treating smoke or fumes of heaters
    • 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
    • F23L15/00—Heating of air supplied for combustion
    • 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
    • F23L15/00—Heating of air supplied for combustion
    • F23L15/04—Arrangements of recuperators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00—Preventing emissions
    • F23J2215/10—Nitrogen; Compounds thereof
    • F23J2215/101—Nitrous oxide (N2O)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/10—Catalytic reduction devices
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Gas Burners (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Air Supply (AREA)
  • Chimneys And Flues (AREA)

Abstract

This invention provides a radiant tube burner facility containing a radiant tube burner, the radiant tube burner supplying fuel gas and combustion air to a combustion burner portion of one end portion of the radiant tube, to burn the fuel gas within the radiant tube at the combustion burner portion; and the combustion exhaust gas after combustion is discharged from another end portion of the radiant tube, wherein an exhaust gas treatment portion accommodating a three-way catalyst is provided at a position on the downstream side of discharge direction of the combustion exhaust gas in the radiant tube.

Description

輻射管燃燒器設備 Radiant tube burner equipment

本發明係關於一種具備有輻射管燃燒器的輻射管燃燒器設備，該輻射管燃燒器係對輻射管之一端部中的燃燒器部供給燃料氣體和燃燒用空氣，並在前述燃燒器部中使燃料氣體在輻射管內燃燒，且使燃燒後的燃燒排氣從輻射管之另一端部排出。尤其是，在如前述的輻射管燃燒器設備中，其特徵點係：於對燃燒器部供給燃料氣體和燃燒用空氣而使燃料氣體在輻射管內燃燒，且使燃燒後的燃燒排氣從輻射管之另一端部朝向外部排出時，在燃燒排氣中含有有害的氮氧化物(以下，稱為NOx)、還有一氧化碳(CO)氣體、碳化氫(HC)氣體等未燃成分氣體的狀態下，防止燃燒排氣被排出至外部。 The present invention relates to a radiant tube burner apparatus provided with a radiant tube burner that supplies fuel gas and combustion air to a burner section at one end of the radiant tube, and in the aforementioned burner section The fuel gas is burned in the radiant tube, and the burned exhaust gas is discharged from the other end of the radiant tube. In particular, in the radiant tube burner device as described above, it is characterized in that fuel gas and combustion air are supplied to the burner section to burn the fuel gas in the radiant tube, and the combustion exhaust gas after combustion When the other end of the radiant tube is discharged to the outside, the combustion exhaust gas contains harmful nitrogen oxides (hereinafter referred to as NOx), carbon monoxide (CO) gas, hydrocarbon (HC) gas and other unburned gas In this state, the combustion exhaust gas is prevented from being discharged to the outside.

以往至今，在工業用加熱爐、熱處理爐等之中，於使被加熱物加熱時，為了防止火焰接觸被加熱物而使得被加熱物氧化，係利用一種具備輻射管燃燒器的輻射管燃燒器設備。 In the past, in industrial heating furnaces, heat treatment furnaces, etc., in order to prevent the flame from contacting the heated object and oxidizing the heated object when heating the heated object, a radiant tube burner equipped with a radiant tube burner is used equipment.

而且，在如此的輻射管燃燒器設備中，一般是形成為：對輻射管之一端部中的燃燒器部供給燃料氣體 和燃燒用空氣，在前述燃燒器部中使燃料氣體和燃燒用空氣混合而使燃料氣體在輻射管內燃燒，且使燃燒後的燃燒排氣從輻射管之另一端部排出。 Moreover, in such a radiant tube burner device, it is generally formed such that fuel gas is supplied to the burner part in one end of the radiant tube With the combustion air, the fuel gas and the combustion air are mixed in the burner section to burn the fuel gas in the radiant tube, and the combustion exhaust gas after combustion is discharged from the other end of the radiant tube.

在此，在前述輻射管燃燒器中，於如前述般地使燃料氣體在燃燒器部中與燃燒用空氣混合而使燃料氣體在輻射管內燃燒時，當為了將燃燒排氣中所含的NOx減量化，而減少燃燒用空氣相對於燃料氣體的量，且將空氣比μ(實際的空氣量/理論空氣量)設為1.0以下來進行燃燒時，就會在燃燒排氣中殘留較多的CO氣體、碳化氫(HC)氣體等未燃成分氣體，且該未燃成分氣體會從輻射管之另一端部朝向外部排出，而造成安全性、環境方面的問題。 Here, in the radiant tube burner, as described above, when the fuel gas is mixed with the combustion air in the burner section to burn the fuel gas in the radiant tube, when the NOx is reduced to reduce the amount of combustion air relative to the fuel gas, and when the air ratio μ (actual air amount/theoretical air amount) is set to 1.0 or less for combustion, a large amount of residue will remain in the combustion exhaust CO gas, hydrocarbon (HC) gas and other unburned component gas, and the unburned component gas will be discharged from the other end of the radiant tube toward the outside, causing safety and environmental problems.

另一方面，當增多燃燒用空氣相對於燃料氣體的量，且以空氣比μ超過1.0的方式進行燃燒時，雖然能抑制在燃燒排氣中殘留未燃成分氣體，但是卻有在燃燒時會產生較多的NOx，且含有較多之NOx的燃燒排氣會從輻射管之另一端部朝向外部排出，而大大地危害環境的問題。尤其是，近年來，係期望大幅地減低燃燒排氣中的NOx。 On the other hand, when the amount of combustion air relative to the fuel gas is increased and the air ratio μ exceeds 1.0, the unburned component gas remaining in the combustion exhaust gas can be suppressed. More NOx is generated, and the combustion exhaust gas containing more NOx will be discharged from the other end of the radiant tube toward the outside, which greatly harms the environment. In particular, in recent years, it has been desired to significantly reduce NOx in combustion exhaust gas.

而且，近年來，如專利文獻1所示，已有提出一種以下的技術：使用氮氧化物還原催化劑來淨化來自輻射管燃燒器的燃燒排氣，且在以使空氣比成為1.0以上的方式對所獲得的NOx淨化氣體中添加燃燒用空氣之後，更進一步使用氧化催化劑使未燃成分被氧化除去。 Furthermore, in recent years, as shown in Patent Document 1, there has been proposed a technique that uses a nitrogen oxide reduction catalyst to purify the combustion exhaust gas from a radiant tube burner, and that the air ratio is 1.0 or more. After the combustion air is added to the obtained NOx purified gas, an oxidation catalyst is used to further oxidize and remove unburned components.

在此，在專利文獻1所示的技術中，係需要 設置用以收容氮氧化物還原催化劑的第一排氣處理部、以及用以收容氧化催化劑的第二排氣處理部，並且使空氣供給至該第一排氣處理部與第二排氣處理部之間，而會有裝置變得複雜而大型化等問題。 Here, in the technology shown in Patent Document 1, it is necessary A first exhaust gas treatment part for accommodating a nitrogen oxide reduction catalyst and a second exhaust gas treatment part for accommodating an oxidation catalyst are provided, and air is supplied to the first exhaust gas treatment part and the second exhaust gas treatment part In the meantime, there will be problems that the device becomes complicated and large.

又，作為排氣處理之一，已知有以下的技術：藉由三元催化劑，來將對安全、環境、人體等帶來不良影響的CO、HC、NOx進行氧化、還原，使其變化成H2O、CO2、N2而淨化。 In addition, as one of exhaust gas treatments, the following technique is known: by a three-way catalyst, CO, HC, and NOx that adversely affect safety, the environment, and the human body are oxidized and reduced to change them into H 2 O, CO 2 and N 2 are purified.

〔先前技術文獻〕 [Previous Technical Literature] 〔專利文獻〕 [Patent Literature]

專利文獻1：日本特開2001-241619號公報 Patent Document 1: Japanese Patent Laid-Open No. 2001-241619

本發明之課題係在於解決具備有輻射管燃燒器的輻射管燃燒器設備中之如前述的問題，該輻射管燃燒器係對輻射管之一端部中的燃燒器部供給燃料氣體和燃燒用空氣，並在前述燃燒器部中使燃料氣體在輻射管內燃燒，且使燃燒後的燃燒排氣從輻射管之另一端部排出。 The object of the present invention is to solve the aforementioned problems in a radiant tube burner apparatus provided with a radiant tube burner which supplies fuel gas and combustion air to the burner part at one end of the radiant tube In the burner section, the fuel gas is burned in the radiant tube, and the burned exhaust gas is discharged from the other end of the radiant tube.

亦即，在本發明的輻射管燃燒器設備中，其課題在於：使燃料氣體在燃燒器部中與燃燒用空氣混合而在輻射管內燃燒之後，於使燃燒排氣從輻射管之另一端部朝向外部排出時，在燃燒排氣中含有有害的NOx、還有CO氣體、碳化氫(HC)氣體等未燃成分氣體的狀態下，適當地 防止燃燒排氣被排出至外部。 That is, in the radiant tube burner apparatus of the present invention, the problem is to mix fuel gas with combustion air in the burner section and burn it in the radiant tube, and then to burn the exhaust gas from the other end of the radiant tube. When the part is discharged to the outside, in the state where the combustion exhaust gas contains harmful NOx, unburned component gases such as CO gas, hydrocarbon (HC) gas, etc., Prevent combustion exhaust gas from being discharged to the outside.

在本發明的輻射管燃燒器設備中，為了解決如前述的課題，係提供一種具備有輻射管燃燒器的輻射管燃燒器設備，該輻射管燃燒器係對輻射管之一端部中的燃燒器部供給燃料氣體和燃燒用空氣，並在前述燃燒器部中使燃料氣體在輻射管內燃燒，且使燃燒後的燃燒排氣從輻射管之另一端部排出，於該輻射管燃燒器設備中，係在前述輻射管中的燃燒排氣之排出方向下游側的位置，設置有收容三元催化劑的排氣處理部。 In the radiant tube burner device of the present invention, in order to solve the aforementioned problems, there is provided a radiant tube burner device provided with a radiant tube burner which is a burner in one end of the radiant tube The fuel gas and combustion air are supplied to the burner section, and the fuel gas is burned in the radiant tube in the burner section, and the burned exhaust gas is discharged from the other end of the radiant tube in the radiant tube burner equipment It is provided at the downstream side in the exhaust direction of the combustion exhaust gas in the radiant tube, and is provided with an exhaust gas treatment part that houses a three-way catalyst.

而且，在前述輻射管燃燒器設備中，係藉由收容於前述排氣處理部的三元催化劑，使燃燒排氣中所含的NOx藉由燃燒排氣中所含的未燃成分氣體而還原。在此情況下，於對燃燒器部供給燃料氣體和燃燒用空氣時，當減少燃燒用空氣相對於燃料氣體之量而將空氣比μ設為1.0以下，就能使燃燒時所產生的NOx之量變少而減少燃燒排氣中所含的NOx，而使燃燒排氣中所含的NOx利用前述三元催化劑並藉由燃燒排氣中所含的未燃成分氣體而充分地還原。 Furthermore, in the radiant tube burner facility, the three-way catalyst contained in the exhaust gas treatment section reduces NOx contained in the combustion exhaust gas by the unburned component gas contained in the combustion exhaust gas . In this case, when the fuel gas and the combustion air are supplied to the burner section, by reducing the amount of combustion air relative to the fuel gas and setting the air ratio μ to 1.0 or less, the NOx produced during combustion can be reduced. The amount is reduced to reduce the NOx contained in the combustion exhaust gas, and the NOx contained in the combustion exhaust gas is sufficiently reduced by the unburned component gas contained in the combustion exhaust gas using the aforementioned three-way catalyst.

又，在本發明的輻射管燃燒器設備中，較佳是設置有：燃料氣體導路，將供給至前述燃燒器部的燃料氣體之一部分引導至比前述排氣處理部更靠燃燒排氣之排出方向上游側的位置；以及控制手段，控制經由該燃料氣體導路而導引的燃料氣體之量。 In addition, in the radiant tube burner apparatus of the present invention, it is preferable that a fuel gas guide is provided to guide a part of the fuel gas supplied to the burner section to the combustion exhaust gas more than the exhaust gas treatment section A position on the upstream side in the discharge direction; and control means to control the amount of fuel gas guided through the fuel gas guide path.

在此，在前述控制手段中，係對應前述燃燒排氣中所含的氮氧化物之量，來控制經由燃料氣體導路而導引的燃料氣體之量。 Here, in the control means, the amount of fuel gas guided through the fuel gas guide is controlled in accordance with the amount of nitrogen oxide contained in the combustion exhaust gas.

而且，於如前述般地對燃燒器部供給燃料氣體和燃燒用空氣時，係在燃燒用空氣相對於燃料氣體之量變多的狀態下使燃料氣體在前述燃燒器部中燃燒，結果，在成為燃燒排氣中含有較多的NOx的情況下，可以藉由前述控制手段而在經由燃料氣體導路被引導至收容有前述三元催化劑的排氣處理部之前供給適當量的燃料氣體。如此，含有較多的NOx的燃燒排氣和適當量的燃料氣體就會一起被引導至排氣處理部，且藉由前述三元催化劑的作用，而使燃燒排氣中的NOx充分地還原而排出。 Furthermore, when the fuel gas and the combustion air are supplied to the burner section as described above, the fuel gas is burned in the burner section in a state where the amount of combustion air relative to the fuel gas is increased, and as a result, When a large amount of NOx is contained in the combustion exhaust gas, an appropriate amount of fuel gas can be supplied by the control means before being guided to the exhaust gas treatment section that houses the three-way catalyst through the fuel gas guide. In this way, the combustion exhaust gas containing a large amount of NOx and an appropriate amount of fuel gas will be led to the exhaust gas treatment part together, and by the action of the three-way catalyst, the NOx in the combustion exhaust gas will be sufficiently reduced. discharge.

又，在本發明的前述輻射管燃燒器設備中，較佳是在比前述排氣處理部更靠燃燒排氣之排出方向下游側的位置，設置有使從排氣處理部所排出之燃燒排氣中所含的未燃成分氣體燃燒的後燃燒裝置。如此，即便是在排氣處理部中所處理後的燃燒排氣中殘留有未燃成分氣體，該未燃成分氣體仍能藉由前述後燃燒裝置來燃燒而氧化成CO2、H2O，而防止未燃成分氣體被排出。 In addition, in the radiant tube burner apparatus of the present invention, it is preferable that a combustion exhaust that is discharged from the exhaust treatment section is provided downstream of the exhaust treatment section in the discharge direction of the combustion exhaust gas A post-combustion device that burns unburned gas contained in the gas. In this way, even if the unburned component gas remains in the combustion exhaust gas treated by the exhaust treatment unit, the unburned component gas can still be burned by the aforementioned post-combustion device to be oxidized into CO 2 and H 2 O, And prevent the unburned component gas from being discharged.

又，在本發明的前述輻射管燃燒器設備中，較佳是設置藉由前述燃燒排氣之熱來使燃燒用空氣加熱的熱交換手段，且使藉由該熱交換手段所加熱後的燃燒用空氣供給至前述燃燒器部。如此，就可以有效地利用燃燒排氣之熱，來進行效率佳的燃燒 Furthermore, in the radiant tube burner device of the present invention, it is preferable to provide a heat exchange means for heating the combustion air by the heat of the combustion exhaust gas, and to make the combustion heated by the heat exchange means Air is supplied to the burner section. In this way, the heat of the combustion exhaust gas can be effectively used for efficient combustion

在本發明的輻射管燃燒器設備中，係於對燃燒器部供給燃料氣體和燃燒用空氣，並使燃料氣體在輻射管內燃燒而使燃燒後的燃燒排氣從輻射管之另一端部排出時，會如前述般地將燃燒排氣導入收容有三元催化劑的排氣處理部，並適當地處理燃燒排氣中之有害的NOx、還有由CO氣體、碳化氫(HC)氣體所構成的未燃成分氣體。 In the radiant tube burner apparatus of the present invention, the fuel gas and the combustion air are supplied to the burner part, and the fuel gas is burned in the radiant tube to burn the combustion exhaust gas from the other end of the radiant tube At the time, the combustion exhaust gas will be introduced into the exhaust treatment section containing the three-way catalyst as described above, and the harmful NOx in the combustion exhaust gas, as well as the CO gas and the hydrocarbon (HC) gas Unburnt component gas.

結果，在本發明的輻射管燃燒器設備中，係在使燃料氣體與燃燒用空氣混合而在輻射管內燃燒的情況下，能在排氣處理部中適當地處理燃燒排氣中的NOx、未燃成分氣體，而在燃燒排氣中未含有NOx、未燃成分氣體的安全狀態下，將燃燒排氣適當地排出至外部。 As a result, in the radiant tube burner device of the present invention, when the fuel gas and the combustion air are mixed and burned in the radiant tube, the exhaust gas treatment unit can appropriately process NOx in the combustion exhaust gas, Unburned component gas, and in a safe state in which NOx and unburned component gas are not contained in the combustion exhaust gas, the combustion exhaust gas is appropriately discharged to the outside.

1‧‧‧爐 1‧‧‧ furnace

1a‧‧‧爐壁 1a‧‧‧furnace wall

10‧‧‧輻射管燃燒器 10‧‧‧radiant tube burner

11‧‧‧輻射管 11‧‧‧radiation tube

12‧‧‧燃燒器部 12‧‧‧Burner Department

21‧‧‧燃料氣體供給管 21‧‧‧ Fuel gas supply pipe

22‧‧‧燃燒用空氣供給管 22‧‧‧Combustion air supply pipe

23‧‧‧排氣處理部 23‧‧‧Exhaust Treatment Department

24‧‧‧後燃燒裝置 24‧‧‧After burning device

24a‧‧‧後燃燒用燃料氣體供給管 24a‧‧‧Post-combustion fuel gas supply pipe

24b‧‧‧後燃燒用空氣供給管 24b‧‧‧Post-combustion air supply pipe

25a‧‧‧熱交換部(熱交換手段) 25a‧‧‧Heat Exchange Department (Heat Exchange Means)

25b‧‧‧燃燒用空氣導管 25b‧‧‧Combustion air duct

25c‧‧‧加熱燃燒用空氣供給管 25c‧‧‧Heating air supply tube for combustion

26‧‧‧燃料氣體導路 26‧‧‧ Fuel gas guide

26a‧‧‧控制閥(控制手段) 26a‧‧‧Control valve (control means)

第1圖係顯示使用本發明之第一實施形態的輻射管燃燒器設備之狀態的概略說明圖。 Fig. 1 is a schematic explanatory diagram showing a state in which the radiant tube burner device of the first embodiment of the present invention is used.

第2圖係顯示使用本發明之第二實施形態的輻射管燃燒器設備之狀態的概略說明圖。 Fig. 2 is a schematic explanatory diagram showing a state in which the radiant tube burner device of the second embodiment of the present invention is used.

第3圖係顯示使用本發明之第三實施形態的輻射管燃燒器設備之狀態的概略說明圖。 Fig. 3 is a schematic explanatory diagram showing a state in which the radiant tube burner device of the third embodiment of the present invention is used.

第4圖係顯示使用本發明之第四實施形態的輻射管燃燒器設備之狀態的概略說明圖。 Fig. 4 is a schematic explanatory diagram showing a state in which a radiant tube burner device of a fourth embodiment of the present invention is used.

第5圖係顯示使用本發明之第五實施形態的輻射管燃燒器設備之狀態的概略說明圖。 Fig. 5 is a schematic explanatory diagram showing a state in which the radiant tube burner device of the fifth embodiment of the present invention is used.

以下，基於所附圖式來具體說明本發明之實施形態的輻射管燃燒器設備。再者，本發明的輻射管燃燒器設備，並未被限定於下述的實施形態所示者，而是可以在未變更發明之要旨的範圍內做適當變更並實施。 Hereinafter, a radiant tube burner device according to an embodiment of the present invention will be specifically described based on the drawings. In addition, the radiant tube burner device of the present invention is not limited to those shown in the following embodiments, but can be appropriately modified and implemented within the scope of not changing the gist of the invention.

在此，在第一實施形態的輻射管燃燒器設備中，係如第1圖所示，使用被形成為U字型者來作為輻射管燃燒器10中的輻射管11，且使該成為U字型的輻射管11配置於爐1之內部，另一方面，使該輻射管11之兩端部經由爐壁1a而朝向爐1之外部延伸出。再者，輻射管11之形狀並未被限於U字型，亦可為如W字型、I字型等公知的形狀。 Here, in the radiant tube burner apparatus of the first embodiment, as shown in FIG. 1, a U-shaped one is used as the radiant tube 11 in the radiant tube burner 10, and this is made U The radiant tube 11 in the shape of a letter is arranged inside the furnace 1, and on the other hand, both end portions of the radiant tube 11 extend toward the outside of the furnace 1 via the furnace wall 1a. Furthermore, the shape of the radiant tube 11 is not limited to the U-shape, and may be a known shape such as a W-shape or an I-shape.

然後，在該實施形態中，對於輻射管11之一端側的燃燒器部12，係經由燃料氣體供給管21來供給碳化氫(HC)氣體等燃料氣體，並且經由燃燒用空氣供給管22來供給燃燒用空氣，在該燃燒器部12使燃料氣體和燃燒用空氣混合而在該燃燒器部12中使燃料氣體在輻射管11內燃燒，且使燃燒後的燃燒排氣從輻射管11之另一端部排出。 Then, in this embodiment, fuel gas such as hydrocarbon (HC) gas is supplied to the burner portion 12 on the one end side of the radiant tube 11 via the fuel gas supply tube 21, and is supplied via the combustion air supply tube 22 Combustion air, fuel gas and combustion air are mixed in the burner section 12 to burn the fuel gas in the radiant tube 11 in the burner section 12, and the combustion exhaust gas after combustion is discharged from the radiant tube 11 Discharge at one end.

又，在該實施形態中，係在使前述燃燒排氣排出的輻射管11之另一端部設置用以收容三元催化劑的排氣處理部23，且將在輻射管11內燃燒之後的燃燒排氣導入該排氣處理部23進行處理。 Furthermore, in this embodiment, an exhaust treatment section 23 for accommodating a three-way catalyst is provided at the other end of the radiant tube 11 that discharges the combustion exhaust gas, and the combustion exhaust after burning in the radiant tube 11 is discharged. Air is introduced into the exhaust processing unit 23 for processing.

在此，在該輻射管燃燒器設備中，於經由前 述燃料氣體供給管21和燃燒用空氣供給管22而對燃燒器部12供給燃料氣體和燃燒用空氣時，為了減少燃燒時所產生的NOx之量，係減少燃燒用空氣相對於燃料氣體的量，例如將空氣比μ設為1.0以下而使燃料氣體在前述燃燒器部12中燃燒。 Here, in the radiant tube burner device, before passing When the fuel gas supply pipe 21 and the combustion air supply pipe 22 supply the fuel gas and the combustion air to the burner section 12, in order to reduce the amount of NOx generated during combustion, the amount of combustion air relative to the fuel gas is reduced For example, the air ratio μ is set to 1.0 or less to burn the fuel gas in the burner unit 12.

當如此地減少燃燒用空氣相對於燃料氣體的量而燃燒時，就會減少燃燒排氣中所含的NOx，並且在該燃燒排氣中殘留CO氣體、碳化氫(HC)氣體等未燃成分氣體。 When the amount of combustion air relative to the fuel gas is reduced in this way, the NOx contained in the combustion exhaust gas is reduced, and unburned components such as CO gas and hydrocarbon (HC) gas remain in the combustion exhaust gas. gas.

然後，當如此地將殘留有NOx和未燃成分氣體的燃燒排氣引導至輻射管11中之被設置於燃燒排氣之排出方向下游側的前述排氣處理部23時，藉由收容於該排氣處理部23的三元催化劑，殘留於燃燒排氣中的NOx和未燃成分氣體就會產生反應，而使NOx還原成N2，並且使未燃成分氣體以被氧化成CO2、H2O的狀態排出。 Then, when the combustion exhaust gas in which NOx and unburned component gas remain is guided to the exhaust gas treatment part 23 provided on the downstream side of the exhaust direction of the combustion exhaust gas in the radiant tube 11 by being contained in the The three-way catalyst of the exhaust treatment unit 23 reacts NOx and unburned component gas remaining in the combustion exhaust gas to reduce NOx to N 2 and oxidize the unburned component gas to CO 2 and H 2 O state is discharged.

在此，在如此地藉由收容於排氣處理部23內的三元催化劑來處理殘留有NOx和未燃成分氣體的燃燒排氣的情況下，燃燒用空氣相對於燃料氣體的量就會變少，而燃燒排氣中的未燃成分氣體則會變多，而有無法藉由收容於排氣處理部23的三元催化劑來充分地處理，使得殘留有未燃成分氣體的燃燒排氣會從排氣處理部23被排出之虞。 Here, when the combustion exhaust gas in which NOx and unburned component gas remain is treated by the three-way catalyst contained in the exhaust gas treatment unit 23 in this manner, the amount of combustion air relative to the fuel gas becomes Less, and the unburned component gas in the combustion exhaust gas will increase, and there is a possibility that the three-way catalyst contained in the exhaust gas processing unit 23 cannot sufficiently treat the combustion exhaust gas with the unburned component gas remaining. It may be discharged from the exhaust treatment unit 23.

為此，第二實施形態的輻射管燃燒器設備係如第2圖所示，是在前述第一實施形態的輻射管燃燒器設 備中，於比前述排氣處理部23更靠燃燒排氣之排出方向下游側的位置設置後燃燒裝置24，且對於該後燃燒裝置24，依需要而從後燃燒用燃料氣體供給管24a供給後燃燒用燃料氣體，以及從後燃燒用空氣供給管24b供給後燃燒用空氣。 For this reason, the radiant tube burner apparatus of the second embodiment is shown in FIG. 2 and is provided in the radiant tube burner of the aforementioned first embodiment. In the preparation, a post-combustion device 24 is provided downstream of the exhaust treatment unit 23 in the discharge direction of the combustion exhaust gas, and the post-combustion device 24 is supplied from the post-combustion fuel gas supply pipe 24a as needed The fuel gas for combustion and the post-combustion air are supplied from the post-combustion air supply pipe 24b.

然後，在該第二實施形態的輻射管燃燒器設備中，係使從排氣處理部23所排出之燃燒排氣中所殘留的未燃成分氣體在前述後燃燒裝置24中燃燒，且使未燃成分氣體氧化成CO2、H2O並予以排出。 Then, in the radiant tube burner apparatus of the second embodiment, the unburned component gas remaining in the combustion exhaust gas discharged from the exhaust treatment unit 23 is burned in the post-combustion device 24, and the unburned gas The combustion component gas is oxidized into CO 2 and H 2 O and discharged.

為此，即便是在前述排氣處理部23中無法充分地處理未燃成分氣體，而使得殘留有未燃成分氣體的燃燒排氣從排氣處理部23被排出，該未燃成分氣體仍會在後燃燒裝置24中被燃燒而處理，而能確實地防止未燃成分氣體被排出。再者，在該實施形態中，雖然是使用使燃燒排氣中所殘留的未燃成分氣體藉由火焰來燃燒的後燃燒裝置24，但是後燃燒裝置24並未被限於此種，亦可以藉由電加熱等來使燃燒排氣中所殘留的未燃成分氣體燃燒。 For this reason, even if the unburned component gas cannot be sufficiently treated in the exhaust processing unit 23, and the combustion exhaust gas in which the unburned component gas remains is discharged from the exhaust processing unit 23, the unburned component gas may still It is burned and processed in the post-combustion device 24, and the unburned component gas can be reliably prevented from being discharged. Furthermore, in this embodiment, although the post-combustion device 24 that burns the unburned component gas remaining in the combustion exhaust gas by the flame is used, the post-combustion device 24 is not limited to this type, and may be borrowed The unburned component gas remaining in the combustion exhaust gas is burned by electric heating or the like.

接著，第三實施形態的輻射管燃燒器設備係如第3圖所示，是在前述第一實施形態的輻射管燃燒器設備中，取代對燃燒器部12供給燃燒用空氣的燃燒用空氣供給管22，而在將燃燒排氣引導至前述排氣處理部23之輻射管11之燃燒排氣之排出側的輻射管11內，設置藉由燃燒排氣之熱來使燃燒用空氣加熱的熱交換部(熱交換手段)25a，且設置用以將燃燒用空氣導引至該熱交換部25a 的燃燒用空氣導管25b，並且設置將在前述熱交換部25a中被加熱後的燃燒用空氣供給至燃燒器部12的加熱燃燒用空氣供給管25c。 Next, as shown in FIG. 3, the radiant tube burner apparatus of the third embodiment is the radiant tube burner apparatus of the first embodiment described above, instead of the combustion air supply that supplies combustion air to the burner unit 12 In the radiant tube 11 that guides the combustion exhaust gas to the exhaust side of the combustion exhaust gas of the radiant tube 11 of the exhaust treatment section 23, a heat for heating the combustion air by the heat of the combustion exhaust gas is provided The exchange part (heat exchange means) 25a is provided to guide the combustion air to the heat exchange part 25a The combustion air duct 25b is provided with a heating combustion air supply pipe 25c that supplies the combustion air heated in the heat exchange section 25a to the burner section 12.

然後，在該第三實施形態的輻射管燃燒器設備中，係如前述般地經由燃燒用空氣導管25b而將燃燒用空氣引導至熱交換部25a，且在該熱交換部25a中藉由燃燒排氣之熱來使燃燒用空氣加熱，將如此地被加熱後的燃燒用空氣經由前述加熱燃燒用空氣供給管25c來供給至燃燒器部12，且使如此地被加熱後的燃燒用空氣和燃料氣體在燃燒器部12中混合，而使燃料氣體在輻射管11內燃燒。 Then, in the radiant tube burner device of the third embodiment, the combustion air is guided to the heat exchange section 25a via the combustion air duct 25b as described above, and the combustion is performed in the heat exchange section 25a The heat of the exhaust gas heats the combustion air, the combustion air thus heated is supplied to the burner unit 12 through the heating combustion air supply pipe 25c, and the combustion air and the heating air thus heated The fuel gas is mixed in the burner portion 12, and the fuel gas is burned in the radiant tube 11.

如此，就可以在使燃料氣體與燃燒用空氣混合而燃燒之際，有效地利用燃燒排氣之熱。又，藉由如此地在熱交換部25a中於燃燒排氣與燃燒用空氣之間進行熱交換，就能使從輻射管11被引導至前述排氣處理部23的燃燒排氣之溫度降低，而防止燃燒排氣之溫度成為超過使用收容於排氣處理部23的三元催化劑之溫度區域的溫度，且可以藉由三元催化劑來適當地處理燃燒排氣。再者，在該實施形態中，雖然是將熱交換部25a設置於輻射管11內，但是亦能夠將熱交換部25a設置於輻射管11之外部。 In this way, when the fuel gas is mixed with the combustion air and burned, the heat of the combustion exhaust gas can be effectively used. In addition, by performing heat exchange between the combustion exhaust gas and the combustion air in the heat exchange section 25a in this manner, the temperature of the combustion exhaust gas guided from the radiant tube 11 to the exhaust treatment section 23 can be reduced. On the other hand, it is possible to prevent the temperature of the combustion exhaust gas from exceeding the temperature range of the temperature range using the three-way catalyst housed in the exhaust gas treatment section 23, and the three-way catalyst can appropriately treat the combustion exhaust gas. Furthermore, in this embodiment, although the heat exchange part 25a is provided in the radiant tube 11, the heat exchange part 25a can also be provided outside the radiant tube 11.

接著，第四實施形態的輻射管燃燒器設備係如第4圖所示，是在前述第一實施形態的輻射管燃燒器設備中設置有：燃料氣體導路26，將經由燃料氣體供給管21而供給至燃燒器部12的燃料氣體之一部分引導至比前述排氣處理部23更靠燃燒排氣之排出方向上游側的位置；以 及控制閥(控制手段)26a，控制經由該燃料氣體導路26而導引至比排氣處理部23更靠燃燒排氣之排出方向上游側的位置的燃料氣體之量。 Next, as shown in FIG. 4, the radiant tube burner device of the fourth embodiment is provided with the fuel gas guide 26 in the radiant tube burner device of the first embodiment described above. And part of the fuel gas supplied to the burner section 12 is led to a position upstream of the exhaust treatment section 23 in the discharge direction of the combustion exhaust gas; And a control valve (control means) 26a, which controls the amount of fuel gas that is led to a position upstream of the exhaust gas treatment section 23 in the discharge direction of the combustion exhaust gas through the fuel gas guide path 26.

然後，在該第四實施形態的輻射管燃燒器設備中，係對應在前述燃燒器部12中被燃燒後之燃燒排氣中所含的NOx之量，而藉由前述控制閥26a來控制經由燃料氣體導路26而導引的燃料氣體之量。 Then, in the radiant tube burner apparatus of the fourth embodiment, the amount of NOx contained in the combustion exhaust gas after being burned in the burner section 12 is controlled by the control valve 26a. The amount of fuel gas guided by the fuel gas guide 26.

在此，於經由前述燃料氣體供給管21和燃燒用空氣供給管22而供給對燃燒器部12供給的燃料氣體和燃燒用空氣時，係增多燃燒用空氣之量，例如在以空氣比μ超過1.0的方式使燃料氣體在前述燃燒器部12中燃燒的情況下，燃料氣體就會藉由充足量的燃燒用空氣來燃燒，而減少燃燒排氣中的CO氣體、碳化氫(HC)氣體等未燃成分氣體，另一方面，也會在燃燒時產生較多的NOx，而使得在燃燒排氣中含有較多的NOx。 Here, when the fuel gas and the combustion air supplied to the burner unit 12 are supplied through the fuel gas supply pipe 21 and the combustion air supply pipe 22, the amount of combustion air is increased, for example, when the air ratio μ exceeds When the fuel gas is combusted in the burner section 12 by means of 1.0, the fuel gas will be combusted by a sufficient amount of combustion air to reduce the CO gas, hydrocarbon (HC) gas, etc. in the combustion exhaust gas The unburned component gas, on the other hand, also generates more NOx during combustion, so that the combustion exhaust gas contains more NOx.

然後，在如此地成為在燃燒排氣中含有較多的NOx的情況下，係藉由前述控制閥26a來控制經由前述燃料氣體導路26而導引至比排氣處理部23更靠燃燒排氣之排出方向上游側的位置的燃料氣體之量，而將適當量的燃料氣體供給至比排氣處理部23更靠燃燒排氣之排出方向上游側的位置，且與含有較多的前述NOx的燃燒排氣一起引導至收容有三元催化劑的排氣處理部23。如此，藉由收容於排氣處理部23內的三元催化劑之作用，燃燒排氣中的NOx會與燃料氣體產生反應，而使NOx被還原成N2， 並且使燃料氣體以被氧化成CO2、H2O後的狀態排出。 Then, in the case where the combustion exhaust gas contains a large amount of NOx in this way, it is controlled by the control valve 26a to be guided to the combustion exhaust gas more than the exhaust gas treatment section 23 via the fuel gas guide path 26. The amount of fuel gas at the upstream side in the discharge direction of the gas, and an appropriate amount of fuel gas is supplied to the position upstream of the exhaust treatment unit 23 in the discharge direction of the combustion exhaust gas and contains more of the aforementioned NOx The combusted exhaust gases are led to the exhaust treatment unit 23 containing the three-way catalyst together. Thus, by acting on the three-way catalyst housed within the exhaust gas treatment unit 23, the combustion exhaust gas NOx will react with the fuel gas, the NOx is reduced to N 2, and the fuel gas are oxidized to CO 2. The state after H 2 O is discharged.

接著，第五實施形態的輻射管燃燒器設備係如第5圖所示，是在前述第四實施形態的輻射管燃燒器設備中，如前述第二實施形態的輻射管燃燒器設備所示，在比前述排氣處理部23更靠燃燒排氣之排出方向下游側的位置設置後燃燒裝置24，並且如前述第三實施形態的輻射管燃燒器設備所示，在將燃燒排氣引導至排氣處理部23的輻射管11之燃燒排氣之排出側的部分，設置藉由燃燒排氣之熱來使燃燒用空氣加熱的熱交換部25a，且設置將所要加熱的燃燒用空氣導引至該熱交換部25a的燃燒用空氣導管25b，並且設置將在前述熱交換部25a中被加熱後的燃燒用空氣供給至燃燒器部12的加熱燃燒用空氣供給管25c。 Next, the radiant tube burner device of the fifth embodiment is as shown in FIG. 5 in the radiant tube burner device of the aforementioned fourth embodiment, as shown in the radiant tube burner device of the aforementioned second embodiment, The post-combustion device 24 is provided on the downstream side of the exhaust gas treatment section 23 in the exhaust direction of the combustion exhaust gas, and as shown in the radiant tube burner apparatus of the third embodiment described above, the combustion exhaust gas is guided to the exhaust gas The portion of the radiant tube 11 of the gas treatment unit 23 on the discharge side of the combustion exhaust gas is provided with a heat exchange portion 25a that heats the combustion air by the heat of the combustion exhaust gas, and is provided to guide the combustion air to be heated to The combustion air duct 25b of the heat exchange section 25a is provided with a heating combustion air supply pipe 25c that supplies the combustion air heated in the heat exchange section 25a to the burner section 12.

然後，在該第五實施形態的輻射管燃燒器設備中，係與前述第三實施形態的輻射管燃燒器設備同樣，經由燃燒用空氣導管25b將燃燒用空氣引導至熱交換部25a，且在該熱交換部25a中藉由燃燒排氣之熱來使燃燒用空氣加熱，將如此地被加熱後的燃燒用空氣經由前述加熱燃燒用空氣供給管25c而供給至燃燒器部12，且使被加熱後的燃燒用空氣和燃料氣體在燃燒器部12中混合而使燃料氣體在輻射管11內燃燒。 Then, in the radiant tube burner device of the fifth embodiment, similar to the radiant tube burner device of the aforementioned third embodiment, the combustion air is guided to the heat exchange portion 25a via the combustion air duct 25b, and In the heat exchange part 25a, the combustion air is heated by the heat of the combustion exhaust gas, and the combustion air thus heated is supplied to the burner part 12 through the heating and combustion air supply pipe 25c, and the The heated combustion air and fuel gas are mixed in the burner section 12 to burn the fuel gas in the radiant tube 11.

如此，在如前述般地使燃燒用空氣與燃料氣體混合而使燃料氣體燃燒之際，就可以有效地利用燃燒排氣之熱，並且能使從輻射管11被引導至排氣處理部23的 燃燒排氣之溫度降低，而防止燃燒排氣之溫度成為超過使用收容於排氣處理部23的三元催化劑之溫度區域的溫度，且可以藉由三元催化劑來適當地處理燃燒排氣。 In this way, when the combustion air is mixed with the fuel gas to burn the fuel gas as described above, the heat of the combustion exhaust gas can be effectively used, and the radiation from the radiant tube 11 to the exhaust treatment unit 23 can be guided The temperature of the combustion exhaust gas is reduced, and the temperature of the combustion exhaust gas is prevented from exceeding the temperature range of the temperature range using the three-way catalyst housed in the exhaust gas treatment unit 23, and the three-way catalyst can appropriately treat the combustion exhaust gas.

又，在該第五實施形態的輻射管燃燒器設備中，當經由前述燃料氣體導路26而導引的燃料氣體之量變多，而有比使燃燒排氣中的NOx還原成N2所需的量更多的燃料氣體被引導至排氣處理部23時，殘留有未燃成分氣體的燃燒排氣就會從排氣處理部23被排出。在如此的情況下，係與前述第二實施形態中的輻射管燃燒器設備同樣，可以使從排氣處理部23所排出之燃燒排氣中所殘留的未燃成分氣體在後燃燒裝置24中燃燒，且使未燃成分氣體氧化成CO2、H2O而排出。 Furthermore, in the radiant tube burner apparatus of the fifth embodiment, when the amount of fuel gas guided through the fuel gas guide path 26 becomes larger, it is more necessary to reduce NOx in the combustion exhaust gas to N 2 When a larger amount of fuel gas is led to the exhaust treatment unit 23, the combustion exhaust gas in which unburned component gas remains will be discharged from the exhaust treatment unit 23. In such a case, as in the radiant tube burner device in the second embodiment described above, the unburned component gas remaining in the combustion exhaust gas discharged from the exhaust gas treatment unit 23 can be stored in the post-combustion device 24 It burns and oxidizes the unburned component gas into CO 2 and H 2 O and discharges it.

1‧‧‧爐 1‧‧‧ furnace

1a‧‧‧爐壁 1a‧‧‧furnace wall

10‧‧‧輻射管燃燒器 10‧‧‧radiant tube burner

11‧‧‧輻射管 11‧‧‧radiation tube

12‧‧‧燃燒器部 12‧‧‧Burner Department

21‧‧‧燃料氣體供給管 21‧‧‧ Fuel gas supply pipe

22‧‧‧燃燒用空氣供給管 22‧‧‧Combustion air supply pipe

23‧‧‧排氣處理部 23‧‧‧Exhaust Treatment Department

Claims (5)

一種具備有輻射管燃燒器的輻射管燃燒器設備，該輻射管燃燒器係對輻射管之一端部中的燃燒器部供給燃料氣體和燃燒用空氣，並在前述燃燒器部中使燃料氣體在輻射管內燃燒，且使燃燒後的燃燒排氣從輻射管之另一端部排出，其中：在前述輻射管中的燃燒排氣之排出方向下游側的位置，設置有收容三元催化劑的排氣處理部，並且，在比前述排氣處理部更靠燃燒排氣之排出方向下游側的位置，設置有使從排氣處理部所排出之燃燒排氣中所含的未燃成分氣體燃燒的後燃燒裝置。 A radiant tube burner device equipped with a radiant tube burner, the radiant tube burner supplies fuel gas and combustion air to a burner section at one end of the radiant tube, and makes the fuel gas in the burner section Combustion in the radiant tube, and the combusted exhaust gas is discharged from the other end of the radiant tube, wherein the exhaust gas containing the three-way catalyst is provided at a position downstream of the combustion exhaust gas in the radiant tube in the discharge direction The processing unit is further provided downstream of the exhaust processing unit in the discharge direction of the combustion exhaust gas, after combusting the unburned component gas contained in the combustion exhaust gas discharged from the exhaust processing unit. Burning device. 如申請專利範圍第1項所述之輻射管燃燒器設備，其中，藉由收容於前述排氣處理部的三元催化劑，使燃燒排氣中所含的氮氧化物藉由燃燒排氣中所含的未燃成分氣體而還原。 The radiant tube burner device according to item 1 of the patent application scope, wherein the nitrogen oxide contained in the combustion exhaust gas is passed through the combustion exhaust gas by the three-way catalyst housed in the exhaust gas treatment section The unburned gas contained is reduced. 如申請專利範圍第1項所述之輻射管燃燒器設備，其中，設置有：燃料氣體導路，將供給至前述燃燒器部的燃料氣體之一部分引導至比前述排氣處理部更靠燃燒排氣之排出方向上游側的位置；以及控制手段，控制經由該燃料氣體導路而導引的燃料氣體之量。 The radiant tube burner device as described in item 1 of the patent application scope, wherein a fuel gas guide is provided to guide a part of the fuel gas supplied to the burner section to a combustion exhauster than the exhaust gas treatment section The position on the upstream side in the gas discharge direction; and control means to control the amount of fuel gas guided through the fuel gas guide path. 如申請專利範圍第3項所述之輻射管燃燒器設備，其中，對應前述燃燒排氣中所含的氮氧化物之量，藉由前述控制手段來控制經由燃料氣體導路而導引的燃料氣體之量。 The radiant tube burner device according to item 3 of the patent application scope, wherein the fuel guided through the fuel gas guide path is controlled by the control means according to the amount of nitrogen oxide contained in the combustion exhaust gas The amount of gas. 如申請專利範圍第1項至第4項中任一項所述之輻射管燃燒器設備，其中，設置藉由前述燃燒排氣之熱來使燃燒用空氣加熱的熱交換手段，且使藉由該熱交換手段所加熱後的燃燒用空氣供給至前述燃燒器部。 The radiant tube burner device according to any one of the first to fourth patent application ranges, wherein a heat exchange means for heating the combustion air by the heat of the combustion exhaust gas is provided, and by The combustion air heated by this heat exchange means is supplied to the burner section.
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