CN101929676B - Catalytic porous medium burner - Google Patents
Catalytic porous medium burner Download PDFInfo
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- CN101929676B CN101929676B CN2010102460961A CN201010246096A CN101929676B CN 101929676 B CN101929676 B CN 101929676B CN 2010102460961 A CN2010102460961 A CN 2010102460961A CN 201010246096 A CN201010246096 A CN 201010246096A CN 101929676 B CN101929676 B CN 101929676B
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- premixer
- porous
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Abstract
The invention relates to a catalytic porous medium burner which comprises a shell and a premixer connected with the shell, wherein the shell is connected with the premixer by flanges, a copper heat-radiating gasket is mounted between the flanges for connecting the shell and the premixer, the center of the copper heat-radiating gasket is provided with a porous plate which can realize the uniform mixing of gas, a shell cavity on the upper part of the porous plate is sequentially filled with a catalytic metal fibrofelt and ceramic foam from bottom to top, the catalytic metal fibrofelt and the ceramic foam are in close contact, a deflector plate is arranged in the premixer, and the lower end of the deflector plate is provided with a gas pipeline and an air pipeline which are communicated with the premixer. Compared with the common porous medium burner, the burner of the invention can effectively prevent tempering and enhance premixing effect, has the advantages of high burning efficiency, low NOx emission, low pollutant emission and the like, and can be used in industries such as chemical industry, metallurgy, paper making and the like.
Description
Technical field
The present invention relates to a kind of burner, be specifically related to a kind of catalytic porous medium burner.
Background technology
At present; Free flame is the main mode that the space combustion of characteristic is still gas fuel combustion; Thermograde was than big and skewness near this mode caused flame front, and the localized hyperthermia district exists the generation that causes a large amount of NOx, insufficient generation that causes a large amount of CO of burning; And combustion instability, efficiency of combustion is low.To the problems referred to above, Chinese scholars has been done a large amount of research to the technology that adds porous media in the burner.Premixed combustion has many good qualities in the porous media: higher efficiency of combustion with stability, load regulation range is wide, burner structure is compact, combustion limits expansion etc., and the content minimizing of pollutant such as nitrogen oxide and sulfide in the combustion product.Therefore, the premixed combustion in the porous media has very big development prospect.
Through in the burner cavity, adding high temperature resistant porous media, strengthen the pre-heat effect of combustion gas, improve the performance of burner, there are many documents and patent to study so far.Patent 01226080.0 has proposed the gradation type porous media combustor, through stability that porous media that porosity and/or aperture gradually change improves burning being set and reducing pollutant emission.Patent 200610045688.0,200610135085.X have proposed a kind of porous metal-ceramic medium gas fuel burner and porous fibre-porous ceramic dielectric gas fuel combusting device respectively; Through metal porous medium or the good effective preheating premixed gas of thermal conductivity of metallic fiber; Improve combustion stability; Enlarge the poor combustion limit, reduce pollutant emission.Above-mentioned research all is confined to the material of porous media and layout are improved, and does not almost report based on the burner that reduces pollutant emission in essence.
Summary of the invention
The object of the present invention is to provide and a kind ofly can reduce the energy-efficient catalytic porous medium burner of pollutant emission.
For achieving the above object; The technical scheme that the present invention adopts is: comprise housing and the premixed device that is connected with housing; Said housing adopts flange to be connected with premixed device; And in the middle of the link flange of housing and premixed device, adding the heat radiation copper backing, this heat radiation copper backing center is provided with and makes the uniform porous plate of combustion gas mixing, in the housing cavity on porous plate top, is filled with the catalytic metal fibrofelt and the ceramic foam of tight contact from the bottom to top successively; Be provided with deflection plate in the described premixed device, and be provided with fuel gas pipeline and the air pipe line that is connected with premixed device in the lower end of deflection plate.
Catalytic metal fibrofelt of the present invention adopts iron-chromium-aluminum metal fiber felt and load above that high temperature resistant catalytic combustion agent perovskite or six aluminosilicates are arranged; High temperature resistant catalytic combustion agent perovskite or six aluminosilicate mode of loadings adopt electric arc spraying or plasma spraying, and its load thickness is 2-20 μ m; The thickness of catalytic metal fibrofelt is that 5-15mm, porosity are 70%-95%, and the metallic fiber diameter is 20-200 μ m; Housing comprise inner casing, shell and be filled in inner casing and shell between heat-insulation layer; It is 50%-98% that ceramic foam adopts porosity, and the aperture is aluminium oxide, carborundum or the zirconia refractory ceramics porous media of 0.4-5.0mm; Fuel gas pipeline and air pipe line tangential get into the premixer; Deflection plate adopts stainless steel or ceramic material to process, and deflection plate is 20-40mm at interval.
The present invention compared with prior art; The most outstanding characteristics with significant effect are: adopt high temperature resistant catalytic metal fibrofelt supported catalyst as combustion chamber filler, catalytic carrier not only can anti-higher temperature but also can have been reduced ignition temperature and effectively reduce the discharging of pollutant.In addition, the copper backing in the middle of premixed device and the mixing chamber can be derived heat timely and effectively and gone, and prevents because misoperation causes the generation of tempering.
Description of drawings
Fig. 1 is an overall structure sketch map of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done further explain.
Referring to Fig. 1; 2; The premixed device 11 that the present invention includes housing and be connected, described housing with housing comprise inner casing 1, shell 2 and be filled in inner casing 1 and shell 2 between heat-insulation layer 3, housing and premixed device 11 adopts flanges 12 to be connected; And in the middle of the link flange 12 of housing and premixed device 11, add the copper backing 6 that dispels the heat; These heat radiation copper backing 6 centers are provided with and make the uniform porous plate 7 of combustion gas mixing, in the housing cavity on porous plate 7 tops, are filled with the catalytic metal fibrofelt 5 and ceramic foam 4 of tight contact from the bottom to top successively, are provided with the deflection plate 8 that stainless steel or ceramic material are processed in the described premixed device 11; Deflection plate 8 20-40mm at interval makes combustion gas fully mix with air, and is provided with fuel gas pipeline 9 and air pipe line 10 that the tangential that is connected with premixed device 11 gets into premixed device 11 in the lower end of deflection plate 8.
It is that 5-15mm, porosity are the iron-chromium-aluminum metal fiber felt of 70%-95% that catalytic metal fibrofelt 5 of the present invention adopts thickness; The metallic fiber diameter that constitutes catalytic metal fibrofelt 5 is 20-200 μ m; And on catalytic metal fibrofelt 5, adopting electric arc spraying or plasma spraying method load that thickness is arranged is high temperature resistant catalytic combustion agent perovskite or six aluminosilicates of 2-20 μ m; Can effectively reduce ignition temperature, reduce the discharging of NOx greatly.
It is 50%-98% that ceramic foam 4 of the present invention adopts porosity, and the aperture is aluminium oxide, carborundum or the zirconia refractory ceramics porous media of 0.4-5.0mm.
Claims (5)
1. catalytic porous medium burner; Comprise the housing of forming by inner casing (1), shell (2); And be filled in the heat-insulation layer (3) between inner casing (1) and the shell (2); The premixed device (11) that adopts flange (12) to be connected with housing; It is characterized in that: add heat radiation copper backing (6) in the middle of the link flange (12) of housing and premixed device (11), this heat radiation copper backing (6) center is provided with and makes the uniform porous plate of combustion gas mixing (7), in the housing cavity on porous plate (7) top, is filled with the catalytic metal fibrofelt (5) and the ceramic foam (4) of tight contact from the bottom to top successively; Be provided with the deflection plate (8) of space 20-40mm in the described premixed device (11), and be provided with fuel gas pipeline (9) and air pipe line (10) that the tangential gets into premixer (11) in the lower end of deflection plate (8).
2. catalytic porous medium burner according to claim 1; It is characterized in that: described catalytic metal fibrofelt (5) adopts electric arc spraying or plasma spraying that high temperature resistant catalytic combustion agent perovskite or six aluminosilicates are carried on the iron-chromium-aluminum metal fiber felt, and its load thickness is 2-20 μ m.
3. catalytic porous medium burner according to claim 1 is characterized in that: the thickness of described catalytic metal fibrofelt (5) is that 5-15mm, porosity are 70%-95%, and the metallic fiber diameter is 20-200 μ m.
4. catalytic porous medium burner according to claim 1 is characterized in that: it is 50%-98% that described ceramic foam (4) adopts porosity, and the aperture is aluminium oxide, carborundum or the zirconia refractory ceramics porous media of 0.4-5.0mm.
5. catalytic porous medium burner according to claim 1 is characterized in that: described deflection plate (8) adopts stainless steel or ceramic material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102460961A CN101929676B (en) | 2010-08-05 | 2010-08-05 | Catalytic porous medium burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102460961A CN101929676B (en) | 2010-08-05 | 2010-08-05 | Catalytic porous medium burner |
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| Publication Number | Publication Date |
|---|---|
| CN101929676A CN101929676A (en) | 2010-12-29 |
| CN101929676B true CN101929676B (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102460961A Expired - Fee Related CN101929676B (en) | 2010-08-05 | 2010-08-05 | Catalytic porous medium burner |
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|---|---|---|---|---|
| CN102692017B (en) * | 2011-03-25 | 2015-03-18 | 中国科学院宁波材料技术与工程研究所 | Solid-oxide fuel cell (SOFC) power generation system and burner thereof |
| CN103107348B (en) * | 2011-11-09 | 2015-12-16 | 中国科学院宁波材料技术与工程研究所 | A kind of SOFC system coupled mode reforming reactor and electricity generation system |
| KR101434978B1 (en) * | 2012-12-27 | 2014-08-27 | 주식회사 경동나비엔 | Gas boiler which prevents overheat of a burner flange |
| CN103953929A (en) * | 2014-05-15 | 2014-07-30 | 中国计量学院 | Hydrogen catalytic burner |
| DE102014209527A1 (en) * | 2014-05-20 | 2015-11-26 | Siemens Aktiengesellschaft | A method of burning an alloy of electropositive metal |
| CN104100974A (en) * | 2014-06-27 | 2014-10-15 | 王荣根 | Low-temperature catalysis type infrared gas heater and catalyst preparation process thereof |
| CN104089287B (en) * | 2014-07-20 | 2017-01-25 | 沈阳工程学院 | Cylindrical radiation porous medium heater capable of achieving diffusive combustion in cavity |
| CN104879753B (en) * | 2014-12-03 | 2017-04-05 | 武汉科技大学 | A kind of full premixed gas fuel burner of single layered porous foamed ceramic panel |
| CN104501162A (en) * | 2015-01-04 | 2015-04-08 | 中国矿业大学 | Porous medium burner with packed bed structure |
| CN107300169B (en) | 2016-04-14 | 2019-12-27 | 中国科学院大连化学物理研究所 | Catalytic flameless combustion device and combustion method with extremely low pollutant emission |
| CN106196049B (en) * | 2016-06-28 | 2018-05-29 | 浙江大学 | The microminiature multistage catalytic burner and combustion method of fire retardant gas or liquid fuel |
| CN106122963A (en) * | 2016-07-21 | 2016-11-16 | 江苏大学 | A kind of hydrogen loading biogas burner |
| CN110114140A (en) * | 2016-10-28 | 2019-08-09 | 巴斯夫公司 | Catalysis comprising metal fiber felt matrix and sorption product |
| CN106524143B (en) * | 2016-11-10 | 2018-11-09 | 江苏大学 | A kind of burner applied to micro thermo optoelectronic system |
| CN107062217B (en) * | 2017-01-18 | 2020-05-05 | 长沙理工大学 | Low-quality gas burner (blunt body) |
| CN109882842B (en) * | 2019-03-13 | 2020-10-27 | 西安交通大学 | Combustor capable of generating multi-scale controllable turbulence |
| CN113404475B (en) * | 2021-07-15 | 2022-03-04 | 吉林大学 | Underground combustion heater for in-situ heating of underground mineral resources |
| CN113606575A (en) * | 2021-08-24 | 2021-11-05 | 郑州釜鼎热能技术有限公司 | Corrugated plate separated low-nitrogen burner with air and gas channels uniformly mixed in same direction and at intervals |
| CN116814344A (en) * | 2023-06-28 | 2023-09-29 | 潍坊凯利来生物科技有限公司 | Heavy oil cleaning agent for kitchen and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1083910A (en) * | 1992-09-08 | 1994-03-16 | 李毅民 | Gas-catalytic ceramic burner for stove |
| ATE215669T1 (en) * | 1994-03-02 | 2002-04-15 | Catalytica Inc | IMPROVED PROCESS AND CATALYTIC STRUCTURE USING INTEGRAL HEAT EXCHANGE WITH OPTIONAL UPFRAME FLAME HOLDER |
| CN2236074Y (en) * | 1994-03-22 | 1996-09-25 | 北京三元催化剂研究所 | Catalytical combustor |
| CN2648296Y (en) * | 2003-08-19 | 2004-10-13 | 孔繁利 | Gas burner for bio-material |
| CN100406802C (en) * | 2006-01-20 | 2008-07-30 | 东北大学 | Porous metal-ceramic medium gas fuel burner |
| CN100498061C (en) * | 2007-05-24 | 2009-06-10 | 北京建筑工程学院 | High power gas catalytic burner |
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2010
- 2010-08-05 CN CN2010102460961A patent/CN101929676B/en not_active Expired - Fee Related
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| CN101929676A (en) | 2010-12-29 |
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Effective date of registration: 20210223 Address after: 226671 Shuanglou Industrial Park, Qutang Town, Hai'an County, Nantong City, Jiangsu Province (LiuXu Village) Patentee after: JIANGSU JIN SHENGYUAN SPECIAL VALVE LIMITED BY SHARE Co.,Ltd. Address before: 710049 No. 28, Xianning Road, Xi'an, Shaanxi Patentee before: XI'AN JIAOTONG University |
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