CN104033902A - High-power heat exchange burner for industry kiln stove - Google Patents
High-power heat exchange burner for industry kiln stove Download PDFInfo
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- CN104033902A CN104033902A CN201410313730.7A CN201410313730A CN104033902A CN 104033902 A CN104033902 A CN 104033902A CN 201410313730 A CN201410313730 A CN 201410313730A CN 104033902 A CN104033902 A CN 104033902A
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- fin
- heat exchange
- heat exchanger
- burner
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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
Abstract
The invention discloses a high-power heat exchange burner for an industry kiln stove. The high-power heat exchange burner for the industry kiln stove is characterized by being mainly composed of a heat exchanger (1), an air inlet pipe (4), a combustor (3), a mixer (2) and a main gun (6), the heat exchanger (1) is provided with an air channel and an exhaust gas channel, the air inlet pipe (4) is arranged on the heat exchanger (1) and communicated with the air channel of the heat exchanger (1), the combustor (3) is communicated with the air channel of the heat exchanger (1) and the air inlet pipe (4), the mixer (2) is arranged in the combustor (3), and the main gun (6) is communicated with the mixer (2) and used for conveying fuel gas. The heat exchanger and the burner are integrated, the high-power heat exchange burner is suitable for fuel media such as natural gas, coke oven gas and producer gas, preheated combustion air and fuel gas can be fully mixed and burnt in the combustor after being mixed, and the maximum burning power reaches 4000 KW and is more than twice that of a traditional burner.
Description
Technical field
The present invention relates to a kind of burner, specifically refer to a kind of high-power heat exchange type burner of industrial kiln that natural gas, coke-stove gas, producer gas be fuel medium of take.
Background technology
At present, the burner of self-preheating type structure is being widely used aspect Industrial Stoves Burner Technology, and its combustion air preheating is all generally to adopt the method that increases separate exchangers to realize.Although the burner of this self-preheating type structure has good result of use, still there is following defect in it:
One, owing to additionally having increased separate exchangers on the burner in self-preheating type structure, has therefore caused whole equipment volume bigger than normal, and it installs very inconvenience.
They are two years old, because the burner of self-preheating type structure is all to adopt the method for a heat exchange to realize, therefore its heat exchange power is to be all generally less than 1500KW, on some large load industrial furnace, just can only solve by increasing the method for burner quantity, not only investment cost is large, and heat transfer effect is poor.
Its three, because burner wind dish and the combustion chamber of self-preheating type structure burner adopts metal structure to make more, so its service life is shorter.
In sum, at present the burner of self-preheating type structure exist volume bigger than normal, the defects such as inconvenient, power is less, heat transfer effect is poor and service life is shorter are installed.
Summary of the invention
Object of the present invention be just to overcome the existing volume of burner of current self-preheating type structure bigger than normal, the defects such as inconvenient, power is less, heat transfer effect is poor and service life is shorter are installed, provide a kind of industrial kiln high-power heat exchange type burner.
Object of the present invention is achieved through the following technical solutions: the high-power heat exchange type burner of a kind of industrial kiln, main by the heat exchanger with air flow channel and flue gas flow channel, be arranged on heat exchanger and the air intake pipe being connected with its air flow channel, the combustion chamber being connected with air flow channel and the air intake pipe of heat exchanger, be arranged on the blender of inside, combustion chamber, and the main rifle composition that is connected with blender and carries for combustion gas.
Further, described heat exchanger is 3 layers of above coaxial rings crack structure, and 3 layers of described above coaxial rings crack structure are mainly by exchange cylindrical shell, are enclosed within the inner fin cylinder of the external side of switching cylinder, be enclosed within the outer fin cylinder in inner fin cylinder outside, and overlap the shell composition in fin cylinder outside outside; And be formed with the ground floor circumferential weld that with air intake pipe be connected with exchange between cylindrical shell at inner fin cylinder, between fin cylinder and inner fin cylinder, be formed with outside the second layer circumferential weld for flue gas circulation, between shell and outer fin cylinder, be formed with the shellring being connected with ground floor circumferential weld and combustion chamber respectively and stitch.
In order to ensure service life of the present invention, described combustion chamber is for to assemble by burner block the cylinder cavity body forming.Wherein, this burner block is by heat resisting pipe skeleton, and the refractory material that is cast in this heat resisting pipe skeleton outer surface is prepared from.
In order to ensure heat exchanger effectiveness, air intake pipe of the present invention is by inner sleeve, be enclosed within inner sleeve outside and with the outer tube of its formation circumferential weld, along inner wall of circumferential seam, be the deflector that helix arranges, and the fin being arranged on inner sleeve inside forms.
According to demand, described fin is mainly a set of above front end fin by the quantity that is evenly arranged on inner sleeve inwall front end, and the quantity that is evenly arranged on inner sleeve rear inner wall is that a set of above rear end fin forms; And front end fin and rear end fin are cross arrangement along the central axis of inner sleeve.
In order to ensure result of use, the present invention is also provided with at air intake pipe place the injector being connected with its inner sleeve.
The present invention compares and has the following advantages and beneficial effect compared with prior art:
(1) the present invention becomes one heat exchanger and burner, be not only applicable to the fuel mediums such as natural gas, coke-stove gas, producer gas, and can in combustion chamber, carry out abundant mixed combustion after the combustion air after preheating and combustion gas mixing, its combustion power maximum reaches 4000KW, is the more than 2 times of conventional burners power.
(2) heat exchanger structure of the present invention is 3 layers of above coaxial rings crack structure, the air entering from air intake pipe is arranged crosswise with the flue gas layer entering from combustion flue, can increase significantly heat exchange area, the more conventional self-preheating burner of its heat exchange efficiency improves more than 5%.Meanwhile, the high-temperature flue gas stream producing in combustion process can with air stream repeatedly reverse flow carry out heat exchange, can also improve significantly combustion-supporting temperature.
(3) the burner block formed cylinder cavity structure of combustion chamber of the present invention for being combined into by heat resisting pipe skeleton and refractory material, it is to be one integrally-built with burner block, therefore can improve greatly the anti-scorching ability of combustion chamber, increase the service life.
(4) injector of the present invention adopts throat structure, be arranged in exhaust opening passage, and the power of this injector is from combustion fan cold air, not only makes combustion fan dual-use, and can also improves the service efficiency of blower fan.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the structural representation of heat exchanger of the present invention.
Fig. 3 is the structural representation of air intake pipe of the present invention.
Fig. 4 is the end face structure schematic diagram of air intake pipe of the present invention.
Wherein, the Reference numeral in above accompanying drawing is respectively:
1-heat exchanger, 2-blender, 3-combustion chamber, 4-air intake pipe, 5-injector, 6-main rifle, 7-burning torch, 11-exchange cylindrical shell, 12-inner fin cylinder, 13-outer fin cylinder, 14-shell, 41-inner sleeve, 42-outer tube, 43-deflector, 44-fin, 111-ground floor circumferential weld, 112-second layer circumferential weld, the 113-the shellring seam.
The specific embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment
As shown in Figure 1, described in the present embodiment, high-power heat exchange type burner mainly comprises heat exchanger 1, be arranged on the air intake pipe 4 on heat exchanger 1, the combustion chamber 3 being connected with heat exchanger 1 and air intake pipe 4, be arranged on the blender 2 of 3 inside, combustion chamber, the injector 5 being connected with air intake pipe 4, and the main rifle 6 being connected with blender 2 and burning torch 7.
Wherein, the core heat exchanger components that heat exchanger 1 is the present embodiment, its concrete structure is as shown in Figure 2.This heat exchanger 1 integral body is 3 layers of above coaxial rings crack structure, and it,, mainly by exchange cylindrical shell 11, is enclosed within the inner fin cylinder 12 in exchange cylindrical shell 11 outsides, is enclosed within the outer fin cylinder 13 in inner fin cylinder 12 outsides, and overlaps shell 14 compositions in fin cylinder 13 outsides outside.The central axis of above-mentioned exchange cylindrical shell 11, inner fin cylinder 12, outer fin cylinder 13 and shell 14 is all located on the same line, in addition between inner fin cylinder 12 and exchange cylindrical shell 11, be formed with ground floor circumferential weld 111, between fin cylinder 13 and inner fin cylinder 12, be formed with second layer circumferential weld 112 outside, between shell 14 and outer fin cylinder 13, be formed with the shellring seam 113 being connected with ground floor circumferential weld 111 and combustion chamber 3 respectively.Therefore, said structure is just referred to as " coaxial rings crack structure ".
Because ground floor circumferential weld 111 is connected with combustion chamber 3 after shellring seam 113, during connection, it need to be connected with air intake pipe 4, so between ground floor circumferential weld 111 and shellring seam 113, formed connection circumferential weld is just air flow channel.Second layer circumferential weld 112 is flue gas flow channel, and it is directly connected with outside combustion flue, can be transmitted through second layer circumferential weld 112 guaranteeing by the high temperature combustion flue flue gas producing in combustion flue.
Air intake pipe 4 is mainly under the effect of combustion fan, to the air flow channel of heat exchanger 1, carries combustion air.The structure of this air intake pipe 4 as shown in Figure 3,4, be that it is by inner sleeve 41, be enclosed within inner sleeve 41 outsides and with the outer tube 42 of its formation circumferential weld, along inner wall of circumferential seam, be the deflector 43 that helix arranges, and the fin 44 being arranged on inner sleeve 41 inside forms.So, the circumferential weld of this air intake pipe 4 has just become one around the spiral circumferential weld of inner sleeve 41.During connection, the circumferential weld of this air intake pipe 4 will be connected with the ground floor circumferential weld 111 of burner 1, to guarantee to enter into ground floor circumferential weld 111 after combustion air flows in the shape of a spiral, enters into air flow channel.
Meanwhile, the internal cavities of inner sleeve 41 will be connected with the inside of combustion chamber 3, to guarantee that through combustion chamber 3 fully the high-temperature furnace gas after burning is discharged by injector 5 after its internal cavities again.
For guaranteeing that high-temperature flue gas can fully carry out heat exchange with combustion air, the inner set fin 44 of inner sleeve 41 can be adopted in two ways and realize.One is, every fin 44 is all as a whole, and it is evenly distributed on the sidewall of inner sleeve 41; It two is, at inner sleeve 41 inwall front end magnitude settings, it is the front end fin more than a set of, the same magnitude setting of inner sleeve 41 rear inner wall be a set of more than and quantity equate rear end fin, and front end fin and rear end fin are cross arrangement along the central axis of inner sleeve 41.The present embodiment preferentially adopts the second way to realize.
In order to overcome conventional burners shorter defect in service life, the combustion chamber 3 described in the present embodiment is for to assemble by burner block the cylinder cavity body forming.This burner block is by heat resisting pipe skeleton, and the refractory material that is cast in this heat resisting pipe skeleton outer surface is prepared from.
2 inside that are arranged at combustion chamber 3 of blender, are positioned at cylinder cavity body inner.One end of the main rifle 6 of carrying for combustion gas is positioned at the inside of heat exchanger 1, and is connected with blender 2, and its other end is positioned at the outside of heat exchanger 1, for outside combustion gas, enters and realize ignition function.In like manner, one end of burning torch 7 is connected with blender 2, and the other end is positioned at the outside of heat exchanger 1 and for igniting.This burning torch 7 is for starting the igniter of main rifle 6.
During operation, burning torch 7 first starts, in order to start main rifle 6.Combustion fan startup air feed are to air intake pipe 4.Now, the combustion air entering from air intake pipe 4 just first with in 3 inside, combustion chamber, carry out fully burning and through the high-temperature flue gas of inner sleeve 41 conveyings, carry out primary heat exchange; Then, the combustion air carrying out after heat exchange for the first time carries out second heat exchange with the combustion flue flue gas from combustion flue high temperature combustion flue flue gas flow channel conveying in heat exchanger 1 again; The combustion air finally carrying out after second heat exchange just with through the combustion gas of blender 2 inputs burns in combustion chamber 3, and discharges under the effect of injector 5.
As mentioned above, just can well realize the present invention.
Claims (8)
1. the high-power heat exchange type burner of industrial kiln, it is characterized in that, main by the heat exchanger (1) with air flow channel and flue gas flow channel, be arranged on the air intake pipe (4) that heat exchanger (1) is upper and be connected with its air flow channel, the combustion chamber (3) being connected with air flow channel and the air intake pipe (4) of heat exchanger (1), be arranged on the inner blender (2) in combustion chamber (3), and main rifle (6) composition that is connected with blender (2) and carries for combustion gas.
2. the high-power heat exchange type burner of a kind of industrial kiln according to claim 1, is characterized in that, described heat exchanger (1) is 3 layers of above coaxial rings crack structure.
3. the high-power heat exchange type burner of a kind of industrial kiln according to claim 2, it is characterized in that, 3 layers of described above coaxial rings crack structure are mainly by exchange cylindrical shell (11), be enclosed within the inner fin cylinder (12) in exchange cylindrical shell (11) outside, be enclosed within the outer fin cylinder (13) in inner fin cylinder (12) outside, and overlap shell (14) composition in fin cylinder (13) outside outside; And be formed with the ground floor circumferential weld (111) being connected with air intake pipe (4) between inner fin cylinder (12) and exchange cylindrical shell (11), between fin cylinder (13) and inner fin cylinder (12), be formed with outside the second layer circumferential weld (112) for flue gas circulation, between shell (14) and outer fin cylinder (13), be formed with the shellring being connected with ground floor circumferential weld (111) and combustion chamber (3) respectively and stitch (113).
4. according to the high-power heat exchange type burner of a kind of industrial kiln described in claim 1～3 any one, it is characterized in that, described combustion chamber (3) are for to assemble by burner block the cylinder cavity body forming.
5. the high-power heat exchange type burner of a kind of industrial kiln according to claim 4, is characterized in that, described burner block is by heat resisting pipe skeleton, and the refractory material that is cast in this heat resisting pipe skeleton outer surface is prepared from.
6. the high-power heat exchange type burner of a kind of industrial kiln according to claim 5, it is characterized in that, described air intake pipe (4) is by inner sleeve (41), be enclosed within inner sleeve (41) outside and with the outer tube (42) of its formation circumferential weld, along inner wall of circumferential seam, be the deflector (43) that helix arranges, and the fin (44) being arranged on inner sleeve (41) inside forms.
7. the high-power heat exchange type burner of a kind of industrial kiln according to claim 6, it is characterized in that, described fin (44) is mainly a set of above front end fin by the quantity that is evenly arranged on inner sleeve (41) inwall front end, and the quantity that is evenly arranged on inner sleeve (41) rear inner wall is that a set of above rear end fin forms; And front end fin and rear end fin are cross arrangement along the central axis of inner sleeve (41).
8. according to the high-power heat exchange type burner of a kind of industrial kiln described in claim 5～7 any one, it is characterized in that, at air intake pipe (4), locate to be also provided with the injector (5) being connected with its inner sleeve (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410313730.7A CN104033902B (en) | 2014-07-03 | 2014-07-03 | A kind of industrial kiln high-power heat exchange type burner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410313730.7A CN104033902B (en) | 2014-07-03 | 2014-07-03 | A kind of industrial kiln high-power heat exchange type burner |
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| Publication Number | Publication Date |
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| CN104033902A true CN104033902A (en) | 2014-09-10 |
| CN104033902B CN104033902B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410313730.7A Active CN104033902B (en) | 2014-07-03 | 2014-07-03 | A kind of industrial kiln high-power heat exchange type burner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112393272A (en) * | 2019-08-13 | 2021-02-23 | 中国石油化工股份有限公司 | Changming lamp ignition gun with protection device and preparation process thereof |
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| CN2753968Y (en) * | 2004-12-15 | 2006-01-25 | 中国科学院广州能源研究所 | Controllable water-cooled pulverized-coal cyclone low-duct liquid slagging burner |
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| CN102478238A (en) * | 2010-11-22 | 2012-05-30 | 福建泉州顺美集团有限责任公司 | Quasi-high speed gas burner for industrial stove |
| CN103307625A (en) * | 2012-03-15 | 2013-09-18 | 朱桂章 | Device for recovering high-temperature tail gas of combustor for preheating combustion-supporting air |
| CN203927916U (en) * | 2014-07-03 | 2014-11-05 | 四川华索自动化信息工程有限公司 | The high-power heat exchange type burner of a kind of industrial kiln |
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2014
- 2014-07-03 CN CN201410313730.7A patent/CN104033902B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2753968Y (en) * | 2004-12-15 | 2006-01-25 | 中国科学院广州能源研究所 | Controllable water-cooled pulverized-coal cyclone low-duct liquid slagging burner |
| CN201363728Y (en) * | 2009-03-06 | 2009-12-16 | 苏和 | Air jet flow self-preheating burner nozzle |
| CN102478238A (en) * | 2010-11-22 | 2012-05-30 | 福建泉州顺美集团有限责任公司 | Quasi-high speed gas burner for industrial stove |
| CN102183165A (en) * | 2011-03-30 | 2011-09-14 | 中冶京诚工程技术有限公司 | Heat exchange tube and burner with spiral flat tube self-preheating device |
| CN103307625A (en) * | 2012-03-15 | 2013-09-18 | 朱桂章 | Device for recovering high-temperature tail gas of combustor for preheating combustion-supporting air |
| CN203927916U (en) * | 2014-07-03 | 2014-11-05 | 四川华索自动化信息工程有限公司 | The high-power heat exchange type burner of a kind of industrial kiln |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112393272A (en) * | 2019-08-13 | 2021-02-23 | 中国石油化工股份有限公司 | Changming lamp ignition gun with protection device and preparation process thereof |
| CN112393272B (en) * | 2019-08-13 | 2022-05-24 | 中国石油化工股份有限公司 | Changming lamp ignition gun with protection device and preparation process thereof |
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| Publication number | Publication date |
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| CN104033902B (en) | 2016-08-17 |
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