JP2017532526A - 低NOx、高効率、高温の段階的な再循環バーナ及び放射管燃焼システム - Google Patents
低NOx、高効率、高温の段階的な再循環バーナ及び放射管燃焼システム Download PDFInfo
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- 229910010271 silicon carbide Inorganic materials 0.000 claims description 18
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- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 15
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 239000012530 fluid Substances 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000003345 natural gas Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
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- 230000015572 biosynthetic process Effects 0.000 description 2
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- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
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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
- F23C3/00—Combustion apparatus characterised by the shape of the combustion chamber
- F23C3/002—Combustion apparatus characterised by the shape of the combustion chamber the chamber having an elongated tubular form, e.g. for a radiant tube
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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
- F23C6/00—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
- F23C6/04—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection
- F23C6/042—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with fuel supply in stages
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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
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
- F23C7/02—Disposition of air supply not passing through burner
- F23C7/06—Disposition of air supply not passing through burner for heating the incoming air
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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
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/006—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber the recirculation taking place in the combustion chamber
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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
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/08—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
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- 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
- F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
- F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
- F23D14/24—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion
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- 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
- 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
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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
- F23C2201/00—Staged combustion
- F23C2201/20—Burner staging
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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
- F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
- F23C2900/03005—Burners with an internal combustion chamber, e.g. for obtaining an increased heat release, a high speed jet flame or being used for starting the combustion
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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
- F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
- F23C2900/09002—Specific devices inducing or forcing flue gas recirculation
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- 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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Abstract
Description
段階的な再循環バーナ及び放射管バーナシステムの構造
従来の熱処理炉の室内に組み付けられるセルフレキュペレータ付きのシングルエンド型放射管バーナシステムの例示的な実施形態が図1に示されている。炉の1つの壁20が、図1に示されており、通常は、外面が金属外皮22によって覆われる耐火性材料21から作られる。セルフレキュペレータ付きのシングルエンド型放射管バーナシステムは、炉室内に配置され、炭化ケイ素、金属又は他の好適な耐熱性材料から作られる細長い(外側)放射管23を含む。外側放射管23は、炉内でキャビティ25を通って延び、外側管の下流端は、符号24において示されているように閉じられる。外側放射管23は、炉の外側壁上の炉取り付けフランジ14内に固定されるとともに、バーナアセンブリ30を炉に取り付ける排出ハウジングフランジ28を使用して適所に固定することができる外側フランジ26を含む。バーナアセンブリ30は、放射管23に固定されるとともに放射管23内に部分的に配置され、高速で高温の火炎を生成し、炉を適切に加熱する。外側放射管23内に同心円状に組み付けられるのは、炭化ケイ素から作られる内側放射管27である。内側放射管27は、スペーサ(回転羽根)29を使用して外側管23の下流(遠位)端から(例えば7.62cm(3インチ))離れて適切に位置決めされる。内側管27の長さは炉に特有であるが、入口面31が、炉内の耐火性壁20に一致して位置合わせされる。同様に、バーナアセンブリ30の出口構成要素(すなわち燃焼ノズル32)も、耐火性の内壁20及び内側放射管の面31に対して平行である。
段階的な再循環バーナ及び放射管バーナシステムの動作
上記で開示したように、例示的な特定の実施形態は、図2に示されているように、ガス管37、排出ハウジング43、予熱流漸縮管42A、排出断熱スリーブ44、ねじ山付きの燃焼管ジョイント47A、内側及び外側のフィン付き燃焼管47、段階化ガスノズル51、燃焼ノズル32、センタリングスペーサ29、空気/ガス入口ハウジング34、空気入口36、ガス入口35、ガス段階化管10、並びに、熱交換器42を含むことができる。そのような段階的な再循環バーナは、図1に示されているように、内側炉壁20、炉耐火物21、外側耐火性壁/シェル22、外側放射管23、外側放射管キャップ及び支持体24、耐火性炉開口25、外側放射管フランジ26、支持フランジ14、内側再循環管27、フレームロッド18並びに点火装置19を含むことができる放射管燃焼システムにおいて動作することができる。
Claims (20)
- 段階的な再循環バーナであって、
燃焼ガス及び燃焼の生成物の相対する螺旋状の経路を形成する内側及び外側の螺旋状のフィンを含む燃焼管、
前記燃焼管に連結される燃焼ノズル、
前記燃焼管の中へ軸方向に延びるガス管、並びに
前記ガス管に連結される段階化ガスノズルであって、燃焼を段階的にするように、前記燃焼管への径方向出口孔、及び、前記燃焼ノズル内に延びる軸方向ガス段階化管を含む、段階化ガスノズル、
を備える、段階的な再循環バーナ。 - 前記燃焼ガスの流れの方向及び前記燃焼の生成物の流れの方向は反対であり、前記燃焼管は、前記燃焼ガスの流れ及び前記燃焼の生成物の流れを隔てるセラミック壁を含む、請求項1に記載の段階的な再循環バーナ。
- 前記燃焼管は炭化ケイ素から作られる、請求項1に記載の段階的な再循環バーナ。
- 前記燃焼ノズルは円錐形状の燃焼ノズルである、請求項1に記載の段階的な再循環バーナ。
- 前記燃焼管からの燃焼の生成物を使用して該燃焼管に提供される燃焼ガスを加熱するように該燃焼管に連結される熱交換器を更に備える、請求項1に記載の段階的な再循環バーナ。
- 前記燃焼管及び前記熱交換器は、該燃焼管を調整可能にする専用の炭化ケイ素ねじによって接続される、請求項5に記載の段階的な再循環バーナ。
- 前記ガス管は、前記熱交換器の中心軸を通って前記燃焼管内に延びる、請求項5に記載の段階的な再循環バーナ。
- 前記段階化ガスノズルは、ガスを、前記燃焼管を通って流れる予熱された空気の螺旋状の流れに向かって径方向に注入するように構成されている、請求項1に記載の段階的な再循環バーナ。
- 前記段階化ガスノズルは、該段階化ガスノズルの径方向穴を通してガスの一部のみを注入して実質的に希薄なガス混合物を形成し、燃焼の生成物の温度を抑えるように構成されており、前記軸方向ガス段階化管を通してガスの残りの部分を注入するように構成されている、請求項8に記載の段階的な再循環バーナ。
- 放射管バーナシステムであって、
段階的な再循環バーナであって、
燃焼ガス及び燃焼の生成物の相対する螺旋状の経路を形成する内側及び外側の螺旋状のフィンを含む燃焼管、
前記燃焼管に連結される燃焼ノズル、
前記燃焼管の中へ軸方向に延びるガス管、並びに
前記ガス管に連結される段階化ガスノズルであって、燃焼を段階的にするように、前記燃焼管への径方向出口孔、及び、前記燃焼ノズル内に延びる軸方向ガス段階化管を含む、段階化ガスノズル、
を含む、段階的な再循環バーナ、
前記バーナに連結される外側放射管、
前記外側放射管内に同心円状に位置付けられる内側再循環管であって、前記外側放射管及び該内側再循環管は、これらの間に環状部を形成する、内側再循環管、並びに
前記外側放射管内に位置付けられるとともに、前記内側再循環管の遠位端と前記外側放射管の遠位端との間に位置決めされ、燃焼の生成物を、前記外側放射管と前記内側再循環管との間の前記環状部を通して流す、回転羽根スペーサ、
を備える、放射管バーナシステム。 - 前記燃焼ガスの流れの方向及び前記燃焼の生成物の流れの方向は反対であり、前記燃焼管は、前記燃焼ガスの流れ及び前記燃焼の生成物の流れを隔てるセラミック壁を含む、請求項10に記載の放射管バーナシステム。
- 前記燃焼管は炭化ケイ素から作られる、請求項10に記載の放射管バーナシステム。
- 前記燃焼ノズルは円錐形状の燃焼ノズルである、請求項10に記載の放射管バーナシステム。
- 前記燃焼管からの燃焼の生成物を使用して該燃焼管に提供される燃焼ガスを加熱するように該燃焼管に連結される熱交換器を更に備える、請求項10に記載の放射管バーナシステム。
- 前記燃焼管及び前記熱交換器は、該燃焼管を調整可能にする専用の炭化ケイ素ねじによって接続される、請求項14に記載の放射管バーナシステム。
- 前記ガス管は、前記熱交換器の中心軸を通って前記燃焼管内に延びる、請求項14に記載の放射管バーナシステム。
- 前記段階化ガスノズルは、ガスを、前記燃焼管を通って流れる予熱された空気の螺旋状の流れに向かって径方向に注入するように構成されている、請求項1に記載の放射管バーナシステム。
- 前記段階化ガスノズルは、該段階化ガスノズルの径方向穴を通してガスの一部のみを注入して実質的に希薄なガス混合物を形成し、燃焼の生成物の温度を抑えるように構成されており、前記軸方向ガス段階化管を通してガスの残りの部分を注入するように構成されている、請求項17に記載の放射管バーナシステム。
- 前記外側放射管及び前記内側再循環管は炭化ケイ素から作られる、請求項10に記載の放射管バーナシステム。
- 前記燃焼ノズルは、前記外側放射管と前記内側再循環管との間の環状部を通って流れる燃焼の生成物の一部を取り込む、請求項10に記載の放射管バーナシステム。
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US201462055095P | 2014-09-25 | 2014-09-25 | |
US62/055,095 | 2014-09-25 | ||
US14/863,563 US10458646B2 (en) | 2014-09-25 | 2015-09-24 | Low NOx, high efficiency, high temperature, staged recirculating burner and radiant tube combustion system |
US14/863,563 | 2015-09-24 | ||
PCT/US2015/052154 WO2016049419A1 (en) | 2014-09-25 | 2015-09-25 | Low nox, high efficiency, high temperature, staged recirculating burner and radiant tube combustion system |
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US10458646B2 (en) * | 2014-09-25 | 2019-10-29 | Selas Heat Technology Company Llc | Low NOx, high efficiency, high temperature, staged recirculating burner and radiant tube combustion system |
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-
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- 2015-09-24 US US14/863,563 patent/US10458646B2/en active Active
- 2015-09-25 CN CN202111492304.0A patent/CN114234227A/zh active Pending
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20220020373A (ko) * | 2019-06-17 | 2022-02-18 | 허니웰 인터내셔날 인코포레이티드 | 단계적 연료 버너 |
KR102578528B1 (ko) | 2019-06-17 | 2023-09-13 | 허니웰 인터내셔날 인코포레이티드 | 단계적 연료 버너 |
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CN107208889A (zh) | 2017-09-26 |
CN114234227A (zh) | 2022-03-25 |
US11365880B2 (en) | 2022-06-21 |
US20160091199A1 (en) | 2016-03-31 |
US20190338945A1 (en) | 2019-11-07 |
HK1244865A1 (zh) | 2018-08-17 |
WO2016049419A1 (en) | 2016-03-31 |
US10458646B2 (en) | 2019-10-29 |
EP3198193A1 (en) | 2017-08-02 |
PL3198193T3 (pl) | 2020-11-02 |
EP3198193B1 (en) | 2020-05-06 |
US20220275932A1 (en) | 2022-09-01 |
JP6724016B2 (ja) | 2020-07-15 |
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