WO2017209503A1 - Appareil à combustion à très faible teneur en oxyde d'azote - Google Patents

Appareil à combustion à très faible teneur en oxyde d'azote Download PDF

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Publication number
WO2017209503A1
WO2017209503A1 PCT/KR2017/005668 KR2017005668W WO2017209503A1 WO 2017209503 A1 WO2017209503 A1 WO 2017209503A1 KR 2017005668 W KR2017005668 W KR 2017005668W WO 2017209503 A1 WO2017209503 A1 WO 2017209503A1
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WIPO (PCT)
Prior art keywords
fuel injection
combustion
injection body
main fuel
combustion furnace
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PCT/KR2017/005668
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English (en)
Korean (ko)
Inventor
김세원
권민준
김대해
Original Assignee
한국생산기술연구원
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Priority claimed from KR1020170066890A external-priority patent/KR101992413B1/ko
Application filed by 한국생산기술연구원 filed Critical 한국생산기술연구원
Priority to CN201780001400.6A priority Critical patent/CN107690557B/zh
Priority to JP2018562983A priority patent/JP6703626B2/ja
Publication of WO2017209503A1 publication Critical patent/WO2017209503A1/fr

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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
    • F23C5/08—Disposition of burners
    • 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 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to 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 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F23C9/06—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for completing combustion

Definitions

  • the present invention relates to an ultra-low nitrogen oxide combustion apparatus through internal recirculation of combustion gas, and more particularly, to allow the combustion gas generated in the combustion chamber to be delivered without a separate device inside the combustion chamber instead of the external connection passage of the combustion chamber.
  • the present invention relates to an ultra low nitrogen oxide combustion apparatus that more efficiently implements internal recycle of combustion gas through the configuration of a burner for more efficient combustion gas flow and optimal control of fuel distribution.
  • the main environmental pollutants include nitrogen oxides (NOx) and carbon dioxide (CO 2 ), as well as carbon monoxide (CO) and soot caused by incomplete combustion of fuels.
  • NOx nitrogen oxides
  • Combustors using conventional fossil fuels inevitably generate nitrogen oxides (NOx) having a chemical formula of NO and NO2 by chemical reactions during combustion.
  • Low NOx combustion technology to suppress this occurrence is being developed to improve the structure of the combustor, such as the mixture of fuel and air, air-fuel ratio.
  • Nitrogen oxides generated during the combustion process react with other oxygen in the atmosphere, causing environmental problems such as smog and increased ozone in the atmosphere.
  • emissions from these combustion processes harm the environment and human health, so countries are tightening regulations on more and more stringent standards.
  • Types of nitrogen oxides may be classified into thermal NOx, prompt NOx, and fuel NOx depending on the cause.
  • Thermal nitrogen oxides are produced by the reaction of nitrogen in the air with oxygen at a high temperature of 1600 ° C or higher, rapid nitrogen oxides are produced at the beginning of combustion during the combustion of hydrocarbon-based fuels, and fuel nitrogen oxides are reactions of nitrogen components contained in the fuel. Is generated by Even in such a countermeasure against nitrogen oxides, since gaseous fuels such as natural gas do not contain nitrogen in the fuel, it may be effective to control matters related to Thermal NOx and Prompt NOx.
  • Nitrogen oxides are known to cause photochemical smog and acid rain and seriously affect plants and animals. For many years, many researchers have studied various ways to reduce NOx.
  • Patent Literature 1 supplies combustion air in three stages by mixing general air and exhaust gas in order to reduce the amount of nitrogen oxides (NOx) generated.
  • NOx nitrogen oxides
  • Patent Document 1 a plurality of exhaust gas supply pipes, a recirculation duct, and a damper are provided as elements for recirculating the exhaust gas so that the exhaust gas is re-introduced into the combustion furnace. Since it needs to be installed separately, there is a disadvantage that the required space increases.
  • Patent Document 2 referring to the registered patent filed by the present applicant, as shown in Fig. 4, the combustion gas (3 ', 4') generated in the combustion furnace (1 ') of the combustion furnace It provides an internal recirculation technology that allows the interior of the burner 2 'to be delivered to the burner 2' without a separate device inside the combustion furnace 1 'but not to an external connection passage, but the combustion gas 4' in some areas within the combustion furnace 1 '. It does not use flow effectively and does not consider the control of the amount of fuel supplied.
  • Patent Document 1 KR 10-2005-0117417 A
  • Patent Document 2 KR 10-1512352 B1
  • the present invention allows the oxidant to be supplied to the central region of the combustion furnace, and at the same time, the combustion gas generated in the combustion furnace in which multiple flame fields are formed is separated inside the combustion furnace instead of the external connection passage of the combustion furnace.
  • Ultra-low nitrogen oxide combustion device using internal recirculation technology that allows the device to be delivered without a device. It is an object to provide a device.
  • a combustion furnace having one side inserted into the combustion furnace and having the inserted one side and an outer circumferential surface spaced apart from the inner surface of the combustion furnace by a predetermined distance;
  • a main fuel injection body positioned in the center of the burner;
  • An auxiliary fuel spraying body positioned as surrounding the main fuel spraying body, the end portion of which is inserted into the other side by a predetermined interval from one end of the burner;
  • a fuel recirculation port positioned near an end of the auxiliary fuel injection body on an outer circumferential surface of the burner;
  • a sensor for detecting a concentration of CO contained in the combustion gas generated in the combustion furnace wherein the main fuel supplied to the combustion furnace through the main fuel injection body is supplied in a smaller amount than a predetermined amount.
  • the auxiliary fuel supplied to the combustion furnace through the auxiliary fuel injection body is additionally supplied as the main fuel is supplied less than the predetermined amount so that combustion occurs in the combustion furnace, and the sensor sensed by the sensor
  • the CO concentration in the combustion furnace is greater than or equal to a predetermined concentration
  • the amount of the main fuel supplied is increased, and the combustion gas generated by the combustion and flowing between the inner circumferential surface of the combustion furnace and the outer circumferential surface of the burner is supplied to the auxiliary fuel injection body.
  • the second combustion fuel is introduced into the burner through the fuel recirculation port by the flow rate of the auxiliary fuel to be injected.
  • a low nitrogen oxide combustion apparatus is provided.
  • the recirculation induction part changes the moving direction of the combustion gas flowing through the internal recirculation sleeve that is inclined relative to the auxiliary fuel injection body, a connection guide extending from the rear end of the internal recirculation sleeve, and connected to the rear end of the connection guide. It is preferable to include an injection nozzle.
  • the injection nozzle may be inclined between the main fuel injection body and the recycle induction part to reduce the width between the main fuel injection body and the recycle induction part, which is a flow space of the oxidant.
  • a recycle promoting protrusion disposed between the injection nozzle and the outer surface of the main fuel injection body, wherein the recycle promoting protrusion increases the flow rate of the combustion gas flowing between the main fuel injection body and the recycling induction part. It is preferable to set it as.
  • the combustion gas generated in the combustion furnace is applied to the internal recirculation technology to be delivered without a separate device inside the combustion chamber, not the external connection passage of the combustion chamber.
  • the combustion gas in the furnace flows in multiple stages and burns more smoothly, which enables ultra low nitrogen oxide operation.
  • the gas is combusted with oxidant and fuel to stabilize the flame in the furnace.
  • FIG. 1 is a side schematic view of an ultra low nitrogen oxide combustion apparatus according to an embodiment of the present invention.
  • Figure 2 is a side schematic view of an ultra low nitrogen oxide combustion apparatus according to an embodiment of the present invention, showing a combustion process of the ultra low nitrogen oxide combustion apparatus.
  • Figure 3 is a side schematic view of an ultra low nitrogen oxide combustion apparatus according to another embodiment of the present invention, showing the combustion process of the ultra low nitrogen oxide combustion apparatus.
  • FIG. 4 is a schematic side view of a conventional combustion apparatus.
  • Figure 5 is a flow chart showing the combustion process of the ultra-low nitrogen oxide combustion apparatus according to the present invention.
  • Fig. 6 shows the amount of NOx generated, as a conventional recirculation multistage combustion device (Patent Document 2), in which the amount of NOx generated when the recirculation port is not applied and when the recirculation port is applied as the ultra low nitrogen oxide combustion device according to the present invention. It shows the amount of NOx generation.
  • Fig. 7 shows the amount of NOx generated, and shows the amount of NOx generated when the fuel distribution optimum control is not applied and when applied.
  • Each component constituting the ultra low nitrogen oxide combustion apparatus of the present invention may be used integrally or separately separated as necessary. In addition, some components may be omitted depending on the form of use.
  • the ultra low nitrogen oxide combustion apparatus 100 includes a combustion furnace, a burner 5 having one side inserted into the combustion furnace, a main fuel injection body 10 located at a central portion of the burner 5, and a main fuel injection body 10.
  • the auxiliary fuel injection body 20 positioned at the end of the burner 5 with its end drawn from the one end of the burner 5 toward the other side by a predetermined interval, and the auxiliary fuel injection body 20 at the outer circumferential surface of the burner 5.
  • a fuel recycle port 21 located near a point where an end of the fuel cell is located, and an oxidant recycle induction part 40 positioned between the main fuel injection body 10 and the auxiliary fuel injection body 20.
  • Burner 5 is one side is inserted into the combustion furnace 1, the outer periphery is positioned so as to be spaced apart from the inner peripheral surface of the combustion furnace (1) by a predetermined interval.
  • the burner 5 is inserted so as to be spaced a predetermined distance a from the insertion surface (lower side of the combustion furnace 1 as seen in FIG. 2) into which the tip portion 6 is inserted into the combustion furnace 1.
  • the recirculation zone of the combustion gas generated in the combustion furnace can be distinguished.
  • the main fuel injection body 10 includes a transfer part 13 connected to the main fuel line 51 and a main fuel injection part 11 directly connected to the transfer part 13.
  • the transfer unit 13 is for safely transferring the main fuel to the main fuel injection unit 11 may be formed uniformly in diameter.
  • the main fuel injection unit 11 may have a shape in which its diameter gradually increases and injects the supplied main fuel through its outer peripheral surface. That is, the fuel entering the main fuel injection unit 11 through the injection hole (not shown) formed on the outer circumferential surface of the main fuel injection unit 11 is injected into the internal space between each fuel injector (10, 20) ( Reference numeral 15 in FIG. 2). That is, the fuel in the main fuel injection section 11 is injected along the radial direction of the main fuel injection section 11 on the oxidant flowing in.
  • a central oxidant injector 85 may be disposed along the inside of the main fuel injection body 10.
  • the nozzle can be inserted into the end of the central oxidant injector 85 to control the air supply amount.
  • the central oxidant injector 85 causes the oxidant supplied from the oxidant supply unit 80 to flow along the central axis of the main fuel injection body 10, and then the primary flame space 72, which is the flame center of the combustion furnace 1. Have it supplied.
  • the auxiliary fuel injection body 20 is disposed on the same circumference at regular intervals around the main fuel injection body 10.
  • the number of auxiliary fuel spraying bodies 20 is not limited, but 6 to 12 auxiliary fuel spraying bodies 20 are disposed, and preferably, the 8 auxiliary fuel spraying bodies 20 are maintained at equal intervals. Can be deployed.
  • the front end of the auxiliary fuel injection body 20 is located from one side of the burner 5 located in the combustion furnace 1 to the other side.
  • the tip of the auxiliary fuel injection body 20 is located at a predetermined interval from the tip 6 of the burner 5 toward the insertion surface (lower side in FIG. 1) of the combustion furnace.
  • the fuel injected from the auxiliary fuel injection body 20 causes the rotary flow in the combustion furnace 1 to be combusted in the combustion furnace 1.
  • the recirculation region of the combustion gas generated in the combustion furnace 1 is clearly distinguished in the combustion furnace 1, and the flow of combustion gas This is smooth, and due to the position of the auxiliary fuel injection body 20 can be more effectively recycled to the combustion gas to be described later.
  • the main fuel injection body 10 and the auxiliary fuel injection body 20 may both be configured as hollow cylindrical tubes.
  • the oxidant is supplied from the oxidant supply unit 80 to the space between the main fuel injection body 10 and the auxiliary fuel injection body 20.
  • the oxidant is supplied into the combustion furnace 1 in a state in which axial or tangential momentum is formed through the swirler 30 provided at the tip of the main fuel injection body 10 or directly without passing through the swirler 30. Can be fed into the furnace 1.
  • the fuel is supplied to the main fuel injection body 10 and the auxiliary fuel injection body 20 by being divided into main fuel and secondary fuel from the fuel supply unit 50. Specifically, impurities are removed from the fuel supply fuel supply unit 50 through a filter (not shown) and pumped by a pump (not shown), and then branched into the first line 51 and the second line 52 to each fuel. It is connected to the injectors 10, 20. Solenoid valves 55 and 56 may be installed in the lines 51 and 52, respectively, to properly supply and shut off the respective fuels supplied to the main fuel and the second fuel.
  • the fuel recirculation port 21 is located between the leading end 6 of the burner 5 and the insertion surface of the combustion furnace 1. Specifically, it is located in the slit form at the point where the end of the auxiliary fuel injection body 20 is located, through which the combustion gas generated in the combustion furnace is introduced into the burner (5) to the auxiliary fuel injection body (20) And / or combustion occurs by flowing toward the oxidant recycle induction part 40 to be described later, thereby reducing nitrogen oxide contained in the combustion gas.
  • the oxidant recirculation induction part 40 is an internal recirculation sleeve 41 and an internal recirculation sleeve 41 which are disposed to be inclined relative to the auxiliary fuel injector 20 on an opening (not shown) of the combustion furnace 1. Inclined at an inner lower end of the connection guide 43 extending from the injection guide, the injection nozzle 45 connected to the rear end of the connection guide 43 to change the moving direction of the flowing combustion gas, and the oxidant recycle induction part 40. And a member 47.
  • the inner recirculation sleeve 41 is disposed to be inclined toward the center of the opening from the front end to the rear end of the burner 5 which is the first inlet of the combustion gas. That is, the inner width becomes wider toward the rear end of the inner recirculation sleeve 41.
  • the connecting guide 43 maintains a constant width as to allow a gentle flow of the combustion gas introduced through the inner recirculation sleeve 41.
  • the injection nozzle 45 injects the combustion gas flowing in the combustion furnace 1 through the internal recycle sleeve 41 and the connection guide 43 into the space between the main fuel injection body 10 and the oxidant recycle induction part 40. Let's do it.
  • the injected combustion gas flows into the combustion furnace 1 together with the oxidant.
  • the injection nozzle 45 is disposed inclined between the main fuel injection body 10 and the oxidant recycle induction part 40. That is, the orifice-shaped structure is realized by reducing the width between the main fuel injection body 10 and the oxidant recycle induction part 40.
  • the arrangement structure of the injection nozzle 45 as described above flows into the combustion furnace 1 at a high speed by further increasing the flow rate of the oxidant supplied to the space between the main fuel injection body 10 and the auxiliary fuel injection body 20. Let's do it.
  • the inclined member 47 is a structure that is disposed on the boundary between the connection guide 43 and the injection nozzle 45 to adjust the width through which the combustion gas can flow, thereby adjusting the flow rate.
  • the air multistage sleeve 60 is a hollow cylindrical structure configured to separately supply the oxidant supplied from the oxidant supply unit 80 to the inside and the outside of the air multistage sleeve 60, thereby enabling the multistage supply of the oxidant. As a result, it is easy to form a multi-stage flame inside the combustion furnace 1.
  • the recirculation promoting protrusion 90 is disposed on the outer circumferential surface of the air multistage sleeve 60. Specifically, the recirculation promoting protrusion 90 serves to narrow the space between the spray nozzle 45 and the air stage sleeve 60 constituting the oxidant recirculation induction part 40.
  • the flow rate of the combustion gas flowing through the oxidant recycle induction part 40 from the combustion furnace 1 is increased while passing near the recycle promotion protrusion 90. This prevents the separation of the combustion gas re-introduced into the combustion furnace 1 through the oxidant recycle induction part 40, and consequently promotes the recycling of the combustion gas.
  • Fuel and oxidant are supplied to the ultra low nitrogen oxide combustion apparatus to perform combustion (S100).
  • the supplied fuel is divided into the main fuel and the auxiliary fuel, the main fuel is supplied less than the predetermined amount (for example, the theoretical equivalent ratio with the oxidant), the auxiliary fuel is additionally supplied as the main fuel is supplied less Supplied.
  • the predetermined amount for example, the theoretical equivalent ratio with the oxidant
  • the auxiliary fuel is additionally supplied as the main fuel is supplied less Supplied.
  • the oxidant is supplied through the oxidant supply unit 80, and some of the supplied oxidant flows through the central oxidant injector 85 inside the main fuel injection body 10.
  • the main fuel is supplied from the fuel supply unit 50 to the main fuel injection body 10 via the first fuel line 51.
  • the main fuel flowing in the main fuel injection body 10 undergoes a process of radially spraying through the outer circumferential surface of the main fuel injection unit 11, and the main fuel injected as described above reacts with the oxidant to premix the region. (78) is formed.
  • the main fuel injection portion 11 has a shape that is enlarged toward the combustion furnace 1 direction, so that the pre-injection region 78 can be formed over a wide portion of the injected fuel.
  • the premixer formed in the premix region 78 burns with the axial momentum and the tangential momentum through the tip of the main fuel injector 10 or through the swirler 30. It is injected into the furnace 1 and combusts in a primary flame space.
  • the fuel is supplied from the fuel supply unit 50 to the auxiliary fuel injection body 20 via the second fuel line 52.
  • the auxiliary fuel injected into the upper side of the primary flame space 72 through the secondary fuel injector 20 reacts with the secondary flame space 74 through a process of reacting with the unreacted oxidant in the primary flame space 72.
  • Some of the combustible gas in the primary flame space 72 is mixed with the premixer supplied outside the swirler 30 to move to the wake of the primary flame to form the secondary flame space 74.
  • the fuel injected from the main fuel injection body 10 forms the primary flame space 72 by the multi-stage air flow in the combustion furnace 1, and the fuel injected from the auxiliary fuel injection body 20 is the main fuel.
  • Partial oxidation reaction is caused by the atmospheric temperature and residual oxygen caused by the heat transferred from the primary flame space 72 of the injector 10 and is converted into various combustible gas species to convert the secondary flame space 74 in the flame wake. Will be constructed. Therefore, the flame state composed of multiple stages in the combustion furnace including the fuel rich region and the fuel lean region is clearly formed.
  • the main fuel injected along the radial direction of the primary fuel injector 10 is premixed with the oxidant to form the premixed region 78, and from the premixed region 78 into the combustion furnace 1.
  • the supplied premixer forms the primary flame space 72 and injects auxiliary fuel from the secondary fuel injector 20 into the rear end of the primary flame space 72 to form the final flame.
  • the multi-stage flame space is formed in the combustion furnace 1 by the fuel injected by the main fuel injection body 10 and the auxiliary fuel injection body 20.
  • a secondary flame space 74 is created at the rear end of the primary flame space 72.
  • the secondary flame space 74 is formed to surround the primary flame space 72 in the space further entered into the inner side of the combustion furnace (1).
  • the combustion gas 75 in the multi-stage flame space including the primary and secondary flame spaces 72 and 74 is disposed between the main fuel injection body 10 and the auxiliary fuel injection body 20 by supplying the oxidant.
  • the combustion furnace 1 flows toward the premixed region 78 formed between the main fuel injection body 10 and the auxiliary fuel injection body 20. It is burned within.
  • a recirculation area is formed in the space between the inner circumferential surface of the combustion furnace 1 and the outer circumferential surface of the burner 5.
  • the combustion gas 76 flows in vortex form.
  • the combustion gas 76 flowing in the recirculation region flows into the fuel recirculation port 21 by the low pressure formed by the fuel injected at high speed at the tip of the auxiliary fuel injection body 20.
  • the fuel injected into the fuel recirculation port 21 is mixed with the fuel injected from the tip of the auxiliary fuel injection body 20 may be supplied into the combustion furnace 1 and combusted.
  • a part of the combustion gas 76 flowing in the recycle zone is supplied to the oxidant recycle induction unit 40 It flows by the low pressure by the oxidizing agent, flows into the oxidant recycle induction part 40 through each of the spaced apart auxiliary fuel injectors 20, and flows around the main fuel injector 10 to premixed region 78 ) May be mixed and supplied to the primary flame space 72 in the furnace 1 to produce combustion.
  • the remaining portion of the combustion gas 76 flowing in the recirculation region is connected to the fuel recirculation port 21 by the low pressure formed by the fuel injected at high speed at the tip of the auxiliary fuel injection body 20 as described above. It enters into the combustion furnace 1 and is combusted.
  • the combustion gas discharged from the oxidant recycle induction unit 40 to the flow space of the oxidant is increased by the recycle promotion protrusion 90, thereby increasing the flow rates of the combustion gas and the oxidant and preventing peeling.
  • the premixer and the combustion gas enter the primary flame space 72 and undergo a process of burning, thereby forming a flame in the combustion furnace 1.
  • a sensor (not shown) installed in the combustion furnace 1 detects and monitors the CO concentration in the combustion furnace 1 in real time.
  • FIG. 6 shows the amount of NOx generated in the existing recirculation multistage combustion device (Patent Document 2) and the ultra low nitrogen oxide combustion device according to the present invention, respectively.
  • the combustion gas generated in the combustion furnace is re-introduced into the combustion furnace with the oxidant and reacts without requiring a separate power, thereby reacting with the oxidation of nitrogen components in the fuel.
  • Nitrogen oxide production can be reduced inherently, and through the multi-stage recirculation of the combustion gas generated in the combustion furnace through a structure different from the existing combustion apparatus, the recycling of the combustion gas can be made more smoothly, and Improved NOx reduction can be achieved through optimal control of fuel distribution.

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  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

La présente invention concerne un appareil à combustion à très faible teneur en oxyde d'azote, au moyen de la recirculation interne du gaz de combustion et de l'optimisation du combustible. La présente invention utilise un appareil de combustion à très faible teneur en oxyde d'azote comprenant : un four à combustion ; un brûleur comportant un côté et une face circonférentielle externe placés à une distance prédéfinie du four à combustion, le côté étant introduit dans le four à combustion ; un corps principal d'injection de combustible placé au niveau d'un centre du brûleur ; un corps auxiliaire d'injection de combustible placé de sorte à entourer le corps principal d'injection de combustible et comportant une partie d'extrémité introduite d'une extrémité latérale du brûleur à l'autre extrémité latérale du brûleur à une distance prédéfinie ; un orifice de recirculation de combustible placé à proximité du corps auxiliaire d'injection de combustible et sur une face circonférentielle externe du brûleur ; et un capteur destiné à détecter une teneur en CO contenu dans le gaz de combustion produit dans le four à combustion.
PCT/KR2017/005668 2016-06-03 2017-05-31 Appareil à combustion à très faible teneur en oxyde d'azote WO2017209503A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201780001400.6A CN107690557B (zh) 2016-06-03 2017-05-31 超低氮氧化物燃烧装置
JP2018562983A JP6703626B2 (ja) 2016-06-03 2017-05-31 超低窒素酸化物燃焼装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2016-0069481 2016-06-03
KR20160069481 2016-06-03
KR1020170066890A KR101992413B1 (ko) 2016-06-03 2017-05-30 초저질소산화물 연소장치
KR10-2017-0066890 2017-05-30

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900006424A1 (it) * 2019-04-29 2020-10-29 Stefano Pesce Testa di combustione con ricircolazione interna e bruciatore comprendente la stessa
RU2743686C1 (ru) * 2019-05-08 2021-02-24 Сукук Корпоратион ГОРЕЛКА С НИЗКИМ ВЫБРОСОМ NOx С ПЕРФОРИРОВАННОЙ ПЛАСТИНЧАТОЙ ПЛАМЕННОЙ ГОЛОВКОЙ
KR20220121065A (ko) * 2021-02-24 2022-08-31 인천대학교 산학협력단 질소산화물 저감형 가스터빈용 마이크로 수소화염 연소버너
IT202100023477A1 (it) 2021-09-10 2023-03-10 Shanghai Quanjie Envir Equip Co Ltd Testa di combustione con ricircolazione interna e bruciatore comprendente la stessa
RU2797080C1 (ru) * 2022-09-14 2023-05-31 Дмитрий Рюрикович Григорьев Способ снижения выбросов оксидов азота и двухпоточная горелка для его осуществления

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KR101512352B1 (ko) * 2013-11-12 2015-04-23 한국생산기술연구원 연소가스의 내부 재순환을 통한 초저질소산화물 연소장치 및 이의 운전방법
KR101569455B1 (ko) * 2015-07-14 2015-11-16 주식회사 수국 복합형 저녹스 버너

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IT201900006424A1 (it) * 2019-04-29 2020-10-29 Stefano Pesce Testa di combustione con ricircolazione interna e bruciatore comprendente la stessa
EP3734154A1 (fr) * 2019-04-29 2020-11-04 Shanghai Quanjie Envir Co,. Ltd. Tête de brûleur à recirculation interne
RU2743686C1 (ru) * 2019-05-08 2021-02-24 Сукук Корпоратион ГОРЕЛКА С НИЗКИМ ВЫБРОСОМ NOx С ПЕРФОРИРОВАННОЙ ПЛАСТИНЧАТОЙ ПЛАМЕННОЙ ГОЛОВКОЙ
KR20220121065A (ko) * 2021-02-24 2022-08-31 인천대학교 산학협력단 질소산화물 저감형 가스터빈용 마이크로 수소화염 연소버너
KR102541210B1 (ko) * 2021-02-24 2023-06-07 인천대학교 산학협력단 질소산화물 저감형 가스터빈용 마이크로 수소화염 연소버너
IT202100023477A1 (it) 2021-09-10 2023-03-10 Shanghai Quanjie Envir Equip Co Ltd Testa di combustione con ricircolazione interna e bruciatore comprendente la stessa
RU2797080C1 (ru) * 2022-09-14 2023-05-31 Дмитрий Рюрикович Григорьев Способ снижения выбросов оксидов азота и двухпоточная горелка для его осуществления

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