CN101865467A - Spiral flow up jet premix and preheat burner with circuit and porous regenerator - Google Patents
Spiral flow up jet premix and preheat burner with circuit and porous regenerator Download PDFInfo
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- CN101865467A CN101865467A CN201010199233A CN201010199233A CN101865467A CN 101865467 A CN101865467 A CN 101865467A CN 201010199233 A CN201010199233 A CN 201010199233A CN 201010199233 A CN201010199233 A CN 201010199233A CN 101865467 A CN101865467 A CN 101865467A
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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
The invention relates to a spiral flow up jet premix and preheat burner with a circuit and a porous regenerator, which can effectively solve the problems of complex ceramic burner structure, uneven burning airflow distribution, poor controllability and stable high hot air temperature realization. The burner comprises a cylindrical wall, an arch roof of hemispheric or inverse catenary spinning structure and a burning chamber, wherein the cylindrical wall and the arch roof form a spherical head cylindrical lower opening; the airflow can spin and burn in the burning chamber structure; an airflow premixing circuit is annularly arranged on the inner wall of the cylindrical wall, is provided with an opening on the upper part and has rectangular section; a gas inlet tube and an air inlet tube which are symmetrically arranged are connected with the airflow premixing circuit through rotary cutting; and the porous regenerator is filled in the burning chamber structure. The burner is simple in structure, unique and good in using effect and can effectively reduce the excess air coefficient, improve the burning temperature and burning intensity and further greatly simplify the burner structure and lighten the burner weight by realizing rapid premixing, preheating and burning in limited space by utilizing the porous material characteristics.
Description
One, technical field
The present invention relates to a kind of gas fuel burning apparatus, particularly as burner application spray porous regenerator body premix preheated burning on the hot-blast stove of industry heating and a kind of loop swirl-flow on the industrial furnace.
Two, background technology
At present, in all gases burner of lower heat of combustion coal gas (as blast furnace gas, producer gas), have coal gas concentrate to spray with air around the multithread thigh spray coal gas that the sleeve of incision or rectangle diffusion combustion structure, coal gas and air stratification spray interior premix spray combustion structure that mixed combustion structure, coal gas and the staggered injection of air mixed combustion structure, coal gas and air be pre-mixed and newly-developed and air and interlock and upwards spray burner structure that the mixed combustion air-flow turns back etc.In a word, the burner of industrial furnace has been finished from sleeve burner, progressively carry out the transition to the conversion of the rectangle burner of comb shape air nozzle, and develop into combustion technology that annular multiple nozzle spraying, eddy flow mix or annular multiinjector staggered go up air-flow after the spray premixed combustion turn back, from the overheavy firing technology of preheating.Along with the development of combustion technology, the combustion intensity of low-heat value gas and the stability of flame all are greatly improved, cooperate the preheating of going up coal gas and combustion air to make that ignition temperature also constantly raises, efficiency of combustion also progressively promotes again.But make a general survey of existing gas burner, still exist burner structure complexity, combustion-gas flow to distribute problems such as poor controllability uneven, combustion-gas flow.Therefore, improve the structure of burner, jump out the pattern of air-flow mixed combustion in the combustion chamber, utilize the principle of coal gas and air mixed combustion in solid dielectric, the combustion process of coal gas is finished in porous media, to realize that high-intensity combustion combines with the effective of uniform high-efficiency heat transfer-accumulation of heat, should be the developmental a kind of innovation of burner.Especially for blast funnace hot blast stove and Yan Gengneng utilizes the accumulation of heat in the combustion chamber, under the not high prerequisite of ignition temperature, realize stable high hot blast temperature.
Three, summary of the invention
At above-mentioned situation, for overcoming the prior art defective, the present invention's purpose just provides spray porous regenerator body premix preheated burning on a kind of loop swirl-flow, can effectively solve the ceramic burner complex structure, combustion-gas flow distributes uneven, poor controllability, thereby realize that high-intensity combustion combines with the effective of uniform high-efficiency heat transfer-accumulation of heat, under the not high situation of ignition temperature, realize the problem of stable high hot blast temperature, the technical scheme of its solution is, comprise the cylinder body of wall, vault and combustion chamber, this burner is by the cylinder body of wall, hemispherical or hang the vault that chain line revolves into structure by the feet and constitute ball tip circle tubular under shed together, can make the air-flow chamber structure of rotary combustion therein, the air-flow of the square-section of annular configuration upper opening just mixes circuit on the cylinder body of wall inwall, be connected with the gas inlet pipe and the air intake duct of symmetric arrangement with its rotary-cut, filling porous regenerator body in the chamber structure, this porous regenerator body is that flame-proof sphere is piled up, or the checker brick in different apertures, or ceramic honeycomb structure, selecting which kind of porous regenerator body, is that size and the purposes according to burner decides.
The present invention is simple in structure, unique, result of use is good, particularly adopt coal gas simple in structure and air draught rotary-cut just to infiltrate into burner, turn back after the last spray and enter the burner that the porous regenerator body is finished the new structure of combustion process, it can realize that coal gas mixes the back injection and enters the combustion chamber with air eddy flow in the circular passage of upward opening, vault is turned back and is entered the porous regenerator body behind the forced ascending, finish combustion process rapidly by means of a large amount of contact-making surface of porous media (80～120 square metres of unit volumes), and form evenly downward flue gas flow field by means of the effect that the porous media mixed flow is all pressed.Because the accumulation of heat of porous regenerator body makes combustion process be able to quick reinforcement for gas combustion next time provides hot environment.Utilize the porous material feature to realize quick premix, preheating and burning in the confined space, just can effectively reduce excess air factor, improve ignition temperature with combustion intensity and then greatly simplify burner structure and alleviate burner weight.
Four, description of drawings
Fig. 1 is a burner of the present invention vertical section front view.
Fig. 2 is a burner of the present invention cross section vertical view.
Five, the specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated.
By Fig. 1, shown in 2, the present invention includes the cylinder body of wall, vault and combustion chamber, this burner is by cylinder body of wall 1, hemispherical or hang the vault 2 that chain line revolves into structure by the feet and constitute ball tip circle tubular under shed together, can make the air-flow chamber structure 3 of rotary combustion therein, the air-flow of the square-section of annular configuration upper opening just mixes circuit 4 on cylinder body of wall 1 inwall, be connected with the gas inlet pipe 5 and the air intake duct 6 of symmetric arrangement with its rotary-cut, filling porous regenerator body 7 in the chamber structure 3, this porous regenerator body is that flame-proof sphere is piled up, or the checker brick in different apertures, or ceramic honeycomb structure.
In order to guarantee result of use, said air-flow just mixes circuit 4 in the horizontal circumferential arrangement of combustion chamber inwall, and its cross section is highly big and the little square-section of width, and upper opening constitutes the circular passage that enters the combustion chamber of mixed airflow in the combustion chamber;
It is symmetric arrangement with its rotary-cut to gas inlet pipe 5 that is connected and air intake duct 6 that said air-flow just mixes circuit 4; Its inclination angle is between 45 °～90 °, and its number is generally between 1～4 pair, and the selection of pipeline 2 diameter parameters will be according to the thermic load size of burner, spray that flow velocity is selected and the diameter of burner is decided;
Fully load porous regenerator body 7 in the said chamber structure 3, its structure can be that flame-proof sphere is piled up, the diameter of ball is between φ 40～φ 90mm, can be the checker brick in different apertures, its aperture is between φ 15～φ 40mm, also can be the ceramic honeycomb structure, aperture be regular hexagon or square, and it selects with burner size and purposes closely related;
Fully load porous regenerator body 7 in the said chamber structure 3, its shape can be a truncated cone-shaped, can be sphere or elliposoidal, also can be and the corresponding contour structures of dome shape.
From the above, the present invention is that a kind of coal gas and tangential introduction of air enter in the circular passage of upper shed, eddy flow upwards enters the combustion chamber after mixing, turn back through vault and to enter again in the porous regenerator body, realize quick premix, preheating, high-intensity combustion, flue gas with the current-sharing samming enters the preceding burner that flows out the combustion chamber afterwards, is referred to as spray porous regenerator body premix preheat burner on the loop swirl-flow here.This burner (as shown in Figure 1) be a ball tip circle tubular under shed structure (with scheme to be as the criterion relatively about), comprise cylinder body of wall 1, hemispherical or hang the vault 2 that chain line revolves shaping by the feet constitutes together and can make the air-flow chamber structure 3 of rotary combustion therein; The first mixed circuit 4 of the square-section of annular configuration upper opening on cylinder body of wall 1 inwall, tangentially being connected with it is the gas inlet pipe 5 and the air intake duct 6 of symmetric arrangement; Fully load porous regenerator body 7 in the chamber structure 3, its structure can be that flame-proof sphere is piled up, can is the checker brick in different apertures, also can be special ceramic honeycomb structure, and it selects with burner size and purposes closely related.
When using said burner, air just mixes circuit 4 by air inlet pipe 6 with the air-flow that the rotary-cut mode enters upper shed to coal gas by air inlet pipe 5, and it is mobile and mix by same direction of rotation that coal gas and air are just mixed in the circuit 4 at air-flow; Simultaneously the opening that also just mixes circuit 4 tops by air-flow in rotation mixes enters combustion chamber 3, and turned back after vault 2 rotation upwards by the preheating of porous regenerator body portion and to enter porous regenerator body 7 downwards, fully mix, preheating is caught fire, flow out the combustion chamber after the completing combustion, the flue gas that forms the current-sharing samming flows.Choose suitable air velocity and air-flow and just mix the relative altitude of circuit 4 and the planform and height of width, porous regenerator body, fully mix and completing combustion in the porous regenerator body with the rapid of air to realize coal gas; Reach the purpose that improves combustion intensity and ignition temperature and effectively control combustion process.
This burner can realize that coal gas upwards flows out and high strength smooth combustion in the porous regenerator body in preliminary the mixing with eddy flow of just mixing in the circuit with air, thereby efficiently solve key issues such as low-heat value gas combustion instability, combustion intensity is little, ignition temperature is low, with between air-flow mutually mixed combustion change into air-flow and mix mutually and burning by means of the porous body surface, its simple structure obviously is better than the flameless burner and the staggered rapid mixing burner that sprays that mix in the air-flow jet pipe.
Burner of the present invention is columnar structured 1 of end sealing, its blind end is hemispherical or hangs the vault construction 2 that chain line revolves shaping by the feet, all build by laying bricks or stones and form with high-quality refractory material, the cylindrical wall hollow space is combustion chamber 3, and its air-flow of building the upper opening of square-section in columnar structured 1 by laying bricks or stones just mixes circuit 4; Gas inlet pipe 5 just mixes circuit 4 with air-flow respectively with air intlet pipe 6 and tangentially is connected; So just realized that coal gas and air enter the co-flow of just mixing circuit and mix; Just mix air-flow and enter the combustion chamber via the opening on premix circuit top, rotation therein upwards after the top turn back again and enter a series of therein complexity of porous regenerator body 7 downwards and finish coal gas fully mixes and finish burning with the continuation of air overall process in flowing.Realize that by the flow velocity and the first relative altitude of circuit 4 in advance of air-flow of regulating gas inlet pipe 5 and air intlet pipe 6 coal gas mixes and cyclone structure with the preliminary of air, thereby improve combustion intensity and ignition temperature, the order of achieve effective control combustion process.
In a word, the ingenious application porous regenerator of the present invention body adds air blast and mixes, promotes chemical reaction, regulates the characteristics that air-flow distributes, with simple and rational structure, effectively improved mixed effect between burner coal gas and air, overcome that gas compartment combustion instability and combustion intensity difficultly improve, combustion-gas flow speed Temperature Distribution is difficult for the key issues such as even or uncontrollable, guaranteed effectively that hot-blast stove, industrial furnace etc. are efficient, samming, average rate, high-heat strength and the operation of safety and stablization ground; Then realize good economic benefit and the social benefit of fuel saving, saving investment, reduction EGT and discharge capacity, environmental contamination reduction.
Claims (5)
1. spray porous regenerator body premix preheated burning on a loop swirl-flow, comprise the cylinder body of wall, vault and combustion chamber, it is characterized in that, by cylinder body of wall (1), hemispherical or hang the vault (2) that chain line revolves into structure by the feet and constitute ball tip circle tubular under shed together, can make the air-flow chamber structure of rotary combustion (3) therein, the air-flow of the square-section of annular configuration upper opening just mixes circuit (4) on cylinder body of wall (1) inwall, be connected with the gas inlet pipe (5) and the air intake duct (6) of symmetric arrangement with its rotary-cut, filling porous regenerator body (7) in the chamber structure (3), this porous regenerator body is that flame-proof sphere is piled up, or the checker brick in different apertures, or ceramic honeycomb structure.
2. spray porous regenerator body premix preheated burning on the loop swirl-flow according to claim 1, it is characterized in that, said air-flow just mixes circuit (4) in the horizontal circumferential arrangement of combustion chamber inwall, its cross section is highly big and the little square-section of width, upper opening constitutes the circular passage that enters the combustion chamber of mixed airflow in the combustion chamber.
3. spray porous regenerator body premix preheated burning on the loop swirl-flow according to claim 1, it is characterized in that, it is symmetric arrangement with its rotary-cut to gas inlet pipe that is connected (5) and air intake duct (6) that said air-flow just mixes circuit (4), its inclination angle is at 45 °～90 °, 1～4 pair of its number.
4. spray porous regenerator body premix preheated burning on the loop swirl-flow according to claim 1, it is characterized in that, filling porous regenerator body (7) in the said chamber structure (3), when being that flame-proof sphere is piled up, the diameter of ball is φ 40～φ 90mm, and when the checker brick that are different apertures, its aperture is φ 15～φ 40mm, when being the ceramic honeycomb structure, aperture is regular hexagon or square.
5. spray porous regenerator body premix preheated burning on the loop swirl-flow according to claim 1, it is characterized in that, filling porous regenerator body (7) in the said chamber structure (3), it is shaped as truncated cone-shaped, or sphere or elliposoidal, or with the corresponding contour structures of dome shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101992330A CN101865467B (en) | 2010-06-12 | 2010-06-12 | Spiral flow up jet premix and preheat burner with circuit and porous regenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101992330A CN101865467B (en) | 2010-06-12 | 2010-06-12 | Spiral flow up jet premix and preheat burner with circuit and porous regenerator |
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| Publication Number | Publication Date |
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| CN101865467A true CN101865467A (en) | 2010-10-20 |
| CN101865467B CN101865467B (en) | 2011-09-21 |
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| CN2010101992330A Expired - Fee Related CN101865467B (en) | 2010-06-12 | 2010-06-12 | Spiral flow up jet premix and preheat burner with circuit and porous regenerator |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277460A (en) * | 2011-08-18 | 2011-12-14 | 陈维汉 | Hot blast furnace for preheating and combusting gas-air jet mixture in porous body |
| CN102330980A (en) * | 2011-08-18 | 2012-01-25 | 陈维汉 | Flame-stabilized hedging flow-equalized combustor with coal gas and air jet injecting and mixing porous bodies |
| CN102563620A (en) * | 2012-01-19 | 2012-07-11 | 陈维汉 | Combustion device for preheating and combusting sprayed-up backflow on nozzle with uniform mixing and distribution of coal gas and air |
| CN102829471A (en) * | 2012-09-28 | 2012-12-19 | 陈维汉 | Flameless combustion device for pre-mixing and up-injecting gas and air in rotational flow manner in annular channel |
| CN103836629A (en) * | 2012-11-26 | 2014-06-04 | 江苏华东炉业有限公司 | Energy saving burner |
| CN103307600B (en) * | 2013-05-27 | 2015-06-17 | 江苏腾天工业炉有限公司 | Heat accumulative gas burner |
| CN107574273A (en) * | 2017-08-29 | 2018-01-12 | 武汉凯迪工程技术研究总院有限公司 | Blast-furnace hot-air system temperature regulation and control method and apparatus based on plasma heating |
| CN111623346A (en) * | 2020-06-19 | 2020-09-04 | 哈尔滨工业大学 | Cyclone burner using high-temperature raw gas |
| CN111947146A (en) * | 2020-07-17 | 2020-11-17 | 浙江吉成新材股份有限公司 | Radiation heating method and heating device for premixing combustion of porous material |
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| CN201772458U (en) * | 2010-06-12 | 2011-03-23 | 郑州豫兴耐火材料有限公司 | Premixed and preheated burner of loop swirl spray-up porous regenerator |
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2010
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| DE2050502A1 (en) * | 1970-10-14 | 1972-04-20 | Gosudarstvennyj sojuznyj Institut po proektirovaniju metallurgiceskich zavodov, Moskau | Blast furnace recuperator - with ring shaped burner chamber |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277460A (en) * | 2011-08-18 | 2011-12-14 | 陈维汉 | Hot blast furnace for preheating and combusting gas-air jet mixture in porous body |
| CN102330980A (en) * | 2011-08-18 | 2012-01-25 | 陈维汉 | Flame-stabilized hedging flow-equalized combustor with coal gas and air jet injecting and mixing porous bodies |
| CN102277460B (en) * | 2011-08-18 | 2012-11-21 | 陈维汉 | Hot blast furnace for preheating and combusting gas-air jet mixture in porous body |
| CN102563620A (en) * | 2012-01-19 | 2012-07-11 | 陈维汉 | Combustion device for preheating and combusting sprayed-up backflow on nozzle with uniform mixing and distribution of coal gas and air |
| CN102829471A (en) * | 2012-09-28 | 2012-12-19 | 陈维汉 | Flameless combustion device for pre-mixing and up-injecting gas and air in rotational flow manner in annular channel |
| CN103836629A (en) * | 2012-11-26 | 2014-06-04 | 江苏华东炉业有限公司 | Energy saving burner |
| CN103307600B (en) * | 2013-05-27 | 2015-06-17 | 江苏腾天工业炉有限公司 | Heat accumulative gas burner |
| CN107574273A (en) * | 2017-08-29 | 2018-01-12 | 武汉凯迪工程技术研究总院有限公司 | Blast-furnace hot-air system temperature regulation and control method and apparatus based on plasma heating |
| CN111623346A (en) * | 2020-06-19 | 2020-09-04 | 哈尔滨工业大学 | Cyclone burner using high-temperature raw gas |
| CN111947146A (en) * | 2020-07-17 | 2020-11-17 | 浙江吉成新材股份有限公司 | Radiation heating method and heating device for premixing combustion of porous material |
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| CN101865467B (en) | 2011-09-21 |
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Effective date of registration: 20161124 Address after: 452374 Zhengzhou, Jinshui District, Henan Jinshui Road, layer 226, No. 2303, No. 23 Patentee after: Henan Yuxing Hot Blast Stove Engineering Technology Co., Ltd. Address before: 452374 Yue Village, Yue Village, Xinmi, Henan Patentee before: Zhengzhou Yuxing Refractory Material Co., Ltd. |