CN106122962A - A kind of regenerative gas radiant tube combustion device - Google Patents
A kind of regenerative gas radiant tube combustion device Download PDFInfo
- Publication number
- CN106122962A CN106122962A CN201610644099.8A CN201610644099A CN106122962A CN 106122962 A CN106122962 A CN 106122962A CN 201610644099 A CN201610644099 A CN 201610644099A CN 106122962 A CN106122962 A CN 106122962A
- Authority
- CN
- China
- Prior art keywords
- muffle
- radial canal
- heat storage
- muffle set
- sleeve pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 46
- 230000001172 regenerating effect Effects 0.000 title claims abstract description 23
- 238000005338 heat storage Methods 0.000 claims abstract description 26
- 239000007921 spray Substances 0.000 claims abstract description 3
- 230000004323 axial length Effects 0.000 claims description 6
- 230000001413 cellular effect Effects 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 18
- 238000010438 heat treatment Methods 0.000 abstract description 12
- 239000003546 flue gas Substances 0.000 abstract description 7
- 239000000446 fuel Substances 0.000 abstract description 6
- 239000004744 fabric Substances 0.000 abstract description 4
- 239000000567 combustion gas Substances 0.000 description 12
- 239000003034 coal gas Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910003978 SiClx Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- F23D14/12—Radiant burners
-
- 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
-
- 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
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/14—Special features of gas burners
- F23D2900/1412—Special features of gas burners for radiant burners
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Supply (AREA)
- Combustion Of Fluid Fuel (AREA)
Abstract
The present invention relates to high temperature air technical field of heating, particularly relate to a kind of regenerative gas radiant tube combustion device, including heat storage, radial canal sleeve pipe, jet pipe, shower nozzle, the first muffle set and the second muffle set, heat storage, the first muffle set and the second muffle set are sequentially arranged in radial canal sleeve pipe, and the first muffle set is from tapered shape to the one end overlapped near the second muffle near one end of heat storage；Jet pipe is embedded in heat storage, in nozzle set is located at the first muffle set and is connected with jet pipe.By at spray outlet position cloth the first muffle set and the second muffle set, realize being formed between flame and radial canal sleeve outer wall certain intervals, reduce the temperature difference of radial canal bushing outer surface, extend the length of flame simultaneously, improve the axial temperature distribution evenness of radial canal sleeve pipe, service life of radiant tubes Service Life of Casing, improve heat treated article heating quality, improve combustion thermal efficiency in radial canal sleeve pipe, save fuel, reduce NO in flue gasXDischarge capacity.
Description
Technical field
The present invention relates to high temperature air technical field of heating, particularly relate to a kind of regenerative gas radiant tube combustion device.
Background technology
Relatively advanced HTAC is applied on gas fired radiant tubes burner by heat accumulation type radiant tube, main
Will be with coal gas as fuel, at special sealing shroud combustion inner pipe, by the sleeve surface that is heated with thermal-radiating form heat
Passing to heating object, combustion product does not contacts with heating object, and overlaps combustion inner pipe by the utilization that arranges of heat storage
The sensible heat of rear flue gas comes warm-up combustion-supporting air or combustion gas, has that combustion thermal efficiency is high, stable, the high spy of equipment dependability
Point, is widely used in various heat-treatment furnace and continuous annealing furnace.
At present, Publication No. P2000-356310A, patent name is Regenerative radiant tube burner
Japan Patent provide a kind of double ended type regenerative radiant tube burner, this burner have employed the shape of Researched of Air Staging Combustion Burning Pulverized Coal
Formula, devises the shape of two class auxiliary air spouts simultaneously, changes radial canal week by the auxiliary air spout varied in size
To the troubled water of direction combustion product gases Yu auxiliary air, thus improve the Temperature Distribution of radial canal circumferential direction.But, radiation
After pipe circumferential direction combustion product gases mixes with auxiliary air, reduce NOx emission to a certain extent, but flame directly washes away
Radial canal set tube wall, impact set tube wall Axial Temperature Distribution uniformity and the service life of sleeve pipe.
The Japan Patent of Publication No. JP2007-278963A provides a kind of regenerative radiant tube burner, by pipe
Internal lining pipe and the iris action of combustion barrel device make combustion air generation fractional combustion.But this burner apparatus regulation air divides
The motility of level air feed ratio is poor；And primary combustion is consistent with second-time burning outlet bore, flame export speed, flameholding
Property aspect has certain limitation.
The performance of regenerative gas radiant tube combustion device is mainly divided with combustion thermal efficiency, sleeve pipe tube wall temperature in sleeve pipe
NOx discharge evaluation in cloth uniformity and flue gas.At present, combustion inner pipe group is overlapped due to regenerative gas radiant tube combustion device
Knit unreasonable structure, have a strong impact on uniformity and the service life of sleeve pipe of set tube wall Axial Temperature Distribution.
The uniformity of radial canal surface temperature distribution is to weigh an important indicator of radial canal performance, and it mainly has influence on
The heating quality of radial canal and the life-span etc. of radial canal, and the principal element affecting radial canal surface temperature distribution uniformity is combustion
Gas and the mixing situation of air.Combustion gas is the lowest with the mixing intensity of air, then incorporation time is elongated, flame elongates, and combustion gas can not
Burning completely, radial canal surface temperature distribution uniformity reduces, and combustion gas also can be caused to waste, and reduces the efficiency of heating surface of radial canal；
If air is excessive with the mixing intensity of combustion gas, then incorporation time shorten, flame too short, radial canal surface temperature distribution can be made equally
Inhomogeneities increases.
Summary of the invention
(1) to solve the technical problem that
It is an object of the invention to provide a kind of regenerative gas radiant tube combustion device, to solve existing regenerative gas spoke
Penetrating pipe burner second-time burning tissue unreasonable, flame export speed is low, poor combustion stability, and set tube wall axial temperature divides
The problems such as cloth is uneven, and radial canal Service Life of Casing is short.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of regenerative gas radiant tube combustion device, including storing
Hot body, radial canal sleeve pipe, jet pipe, shower nozzle, first muffle set and the second muffle set, described heat storage, described first muffle set and
Described second muffle set is sequentially arranged in described radial canal sleeve pipe, described first muffle set near described heat storage one end to
In tapered shape near one end of described second muffle set；Described jet pipe is embedded in described heat storage, and described nozzle set is located at
In described first muffle set and it is connected with described jet pipe.
Wherein, described second muffle set is straight tube shape.
Wherein, described first muffle set is provided with fin near the outside of one end of the second muffle set.
Wherein, described shower nozzle is provided with swirl vane.
Wherein, described first muffle set and the second muffle set are against laminating.
Wherein, the axial length of described second muffle set and the ratio of the axial length of described radial canal sleeve pipe are not less than 1/3.
Wherein, described first muffle set and described second muffle set are made up of carborundum.
Wherein, described heat storage is cellular.
(3) beneficial effect
The technique scheme of the present invention has the advantage that and the invention provides a kind of regenerative gas radiant combustion
Pipe, by the first muffle set and the second muffle set of the gas outlet location arrangements tapered shape at shower nozzle, to realize flame and spoke
Penetrate formation certain intervals between pipe-in-pipe outer wall, the length of flame can be extended simultaneously, improve radial canal sleeve pipe Axial Temperature Distribution
Uniformity, reduces the temperature difference of radial canal bushing outer surface, service life of radiant tubes Service Life of Casing, improves second-time burning tissue not
Rationally, improve combustion gas and mix inequality with air, improve combustion thermal efficiency in radial canal sleeve pipe, save fuel, make NO in flue gasXRow
High-volume reduce, improve heat treated article heating quality.
Accompanying drawing explanation
Fig. 1 is the sectional view of embodiment of the present invention regenerative gas radiant tube combustion device combustion tube structure；.
In figure, 1: heat storage；2: the first muffle sets；3: shower nozzle；4: the second muffle sets；5: radial canal sleeve pipe；6: gas injection
Pipe.
Detailed description of the invention
With embodiment, the detailed description of the invention of the present invention is described in further detail below in conjunction with the accompanying drawings.Following example
For the present invention is described, but it is not limited to the scope of the present invention.
In describing the invention, it should be noted that term " on ", D score, " interior ", the orientation of the instruction such as " outward " or position
Relation of putting for based on orientation shown in the drawings or position relationship, be for only for ease of the description present invention and simplifying describe rather than
Instruction or hint indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore can not
It is interpreted as limitation of the present invention.Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or
Hint relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is provided with ", " puts
In ", should be interpreted broadly " being connected ", " connection " etc., connect for example, it may be fixing, it is also possible to be to removably connect, or one
Ground connects；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to by the indirect phase of intermediary
Even, can be the connection of two element internals.For the ordinary skill in the art, can understand above-mentioned with concrete condition
Term concrete meaning in the present invention.
As it is shown in figure 1, the invention provides a kind of regenerative gas radiant combustion pipe, in figure, the direction of arrow represents radial canal
The flow direction of combustion gas in sleeve pipe, and represent the front extreme direction of radial canal sleeve pipe.The present invention includes heat storage 1, radial canal sleeve pipe
5, jet pipe 6, shower nozzle the 3, first muffle set 2 and the second muffle set 4, heat storage the 1, first muffle set 2 and the second muffle set 4 set successively
In institute's pipe-in-pipe, as it can be seen, heat storage the 1, first muffle set 2 and the second muffle overlap 4 from the rear end of radial canal sleeve pipe 5 to front
End is arranged in order.First muffle set 2 is from tapered shape, i.e. to the one end overlapping 4 near the second muffle near one end of heat storage 1
See flare shape from front to back.Jet pipe 6 is embedded in heat storage 1, shower nozzle 3 be sheathed on first muffle set 2 in and with spray
Pipe 6 connects.Preferably, heat storage 1 uses cellular heat storage.During use, combustion air flows into from jet pipe 6, flows to shower nozzle
3, combustion air is preheated when heat storage 1, enters the first muffle set 2, mixes with the coal gas of shower nozzle 3 center ejection,
The front end of the first muffle set of tapered shape starts burning, and finally forms uniformity of temperature profile, burning in the second muffle overlaps 4
Flame completely.
The present invention, by arranging the first muffle set 2 and the second muffle set 4 in shower nozzle 3 exit position, makes flame and radial canal
Certain intervals is formed, it is achieved set tube wall Axial Temperature Distribution is uniform between sleeve pipe 5 pipe outer wall.It is tapered that first muffle overlaps 2
Shape, such as, tubaeform, improve the speed of flame export, make combustion air and combustion gas before the first muffle set 2 of tapered shape
Being more fully mixed at end, combustion stability strengthens.Preferably, described first muffle set 2 and described second muffle set 4 by carbon
SiClx is made, and can more preferably realize above-mentioned technique effect.Cellular heat storage 1, makes heat storage 1 specific surface area increase, and raising is led
Hot property.
By arranging the first muffle set 2 and the second muffle set 4 in shower nozzle 3 exit position, and coordinate shape that muffle overlap with
Material, can improve radial canal sleeve pipe 5 Axial Temperature Distribution uniformity, reduces the temperature difference of radial canal bushing outer surface, energy simultaneously
Enough extend the length of flame, service life of radiant tubes sleeve pipe 5 service life, improve heat treated article heating quality, improve combustion gas with empty
The mixing situation of gas, in radial canal sleeve pipe, combustion thermal efficiency is high, saves fuel, NO in flue gasXDischarge capacity reduces.
Concrete, the first muffle set 2 is provided with fin near the outside of one end of the second muffle set 4.Can effectively enhanced rad
Pipe radial temperature profile, it is achieved set tube wall Axial Temperature Distribution is uniform.First muffle set 2 overlaps 4 against laminating with the second muffle,
Heat is avoided directly to wash away radial canal sleeve pipe 5 from the gap formed between the first muffle set 2 and the second muffle set 4.
Concrete, the second muffle set 4 be straight tube shape, it is to avoid flame directly washes away radial canal set tube wall, raising sleeve pipe
Tube wall Axial Temperature Distribution uniformity and Service Life of Casing.
Concrete, described shower nozzle 3 is with swirl vane.Combustion-supporting air flow carries further through the spout 3 with swirl vane
High gas flow rate, makes spout air-flow rotate at high speed volume inhale the coal gas of spout ejection, improves the mixed of combustion air and combustion gas
Conjunction situation, improves combustion thermal efficiency in radial canal, has saved fuel, effectively reduces the discharge capacity of NOx in flue gas.
According to burner thermic load, the room temperature combustion air of certain flow reaches 700～900 after described heat storage 1 preheats
DEG C, enter described first muffle set 2 with tense speed 30～50m/s, after flowing through the described shower nozzle 3 of band vane cyclone, further
Improve combustion air flow velocity after preheating, mix with the coal gas of described shower nozzle 3 center ejection, before described first muffle set 2
End starts burning, and forms combustor in described first muffle set 2, and the flame formed in described first muffle set 2 passes through institute
State radial canal sleeve pipe 5, be axially formed homogeneous temperature field at radial canal, reduce local temperature difference, radial canal surface temperature axial distribution
Uniformity is improved, the service life of radiant tubes life-span, improves heat treated article heating quality.
Concrete, the axial length of the second muffle set 4 and the ratio of the axial length of radial canal sleeve pipe 5, not less than 1/3, can have
Effect forms flame in reducing described first muffle set 2 and washes away radial canal tube wall high temperature.
In sum, the present invention is by shower nozzle 3 exit position cloth the first muffle set 2 and the second muffle set 4, it is achieved flame
And form certain intervals between radial canal sleeve pipe 5 outer wall, reduce the temperature difference of radial canal bushing outer surface, fire can be extended simultaneously
Flame length, improves the axial temperature distribution evenness of radial canal sleeve pipe, service life of radiant tubes Service Life of Casing, improves heat treated article
Heating quality, improves the troubled water of combustion gas and air, improves combustion thermal efficiency in radial canal sleeve pipe, has saved fuel,
Reduce NO in flue gasXDischarge capacity.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, on the premise of without departing from the technology of the present invention principle, it is also possible to make some improvement and modification, these improve and modification
Also should be regarded as protection scope of the present invention.
Claims (8)
1. a regenerative gas radiant tube combustion device, it is characterised in that: include heat storage, radial canal sleeve pipe, jet pipe, spray
Head, the first muffle set and the second muffle set, described heat storage, described first muffle set and described second muffle set are sequentially arranged in institute
Stating in radial canal sleeve pipe, described first muffle set is from the one end overlapped to close described second muffle near one end of described heat storage
In tapered shape；Described jet pipe is embedded in described heat storage, in described nozzle set is located at described first muffle set and with described
Jet pipe connects.
Regenerative gas radiant tube combustion device the most according to claim 1, it is characterised in that: described second muffle set is
Straight tube shape.
Regenerative gas radiant tube combustion device the most according to claim 2, it is characterised in that: described first muffle set leans on
The outside of one end of nearly second muffle set is provided with fin.
4. according to the arbitrary described regenerative gas radiant tube combustion device of claim 1-3, it is characterised in that: described shower nozzle sets
There is swirl vane.
5. according to the arbitrary described regenerative gas radiant tube combustion device of claim 1-3, it is characterised in that: described first every
Flame set and the second muffle set are against laminating.
6. according to the arbitrary described regenerative gas radiant tube combustion device of claim 1-3, it is characterised in that: described second every
The axial length of flame set and the ratio of the axial length of described radial canal sleeve pipe are not less than 1/3.
7. according to the arbitrary described regenerative gas radiant tube combustion device of claim 1-3, it is characterised in that: described first every
Flame set and described second muffle set are made up of carborundum.
8. according to the arbitrary described regenerative gas radiant tube combustion device of claim 1-3, it is characterised in that: described heat storage
For cellular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644099.8A CN106122962A (en) | 2016-08-08 | 2016-08-08 | A kind of regenerative gas radiant tube combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644099.8A CN106122962A (en) | 2016-08-08 | 2016-08-08 | A kind of regenerative gas radiant tube combustion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106122962A true CN106122962A (en) | 2016-11-16 |
Family
ID=57257541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610644099.8A Pending CN106122962A (en) | 2016-08-08 | 2016-08-08 | A kind of regenerative gas radiant tube combustion device |
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| Country | Link |
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| CN (1) | CN106122962A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5515794A (en) * | 1995-01-23 | 1996-05-14 | Texaco Inc. | Partial oxidation process burner with recessed tip and gas blasting |
| CN2245759Y (en) * | 1995-08-03 | 1997-01-22 | 曾振洲 | Torsion band insertion piece radiation pipe |
| CN201363728Y (en) * | 2009-03-06 | 2009-12-16 | 苏和 | Air jet flow self-preheating burner nozzle |
| CN202177101U (en) * | 2011-07-26 | 2012-03-28 | 武汉宇宙科技有限公司 | Preheating type radiant tube combustion gas burner |
| CN204806401U (en) * | 2015-05-29 | 2015-11-25 | 北京神雾环境能源科技集团股份有限公司 | Heat storage burner |
| CN205919324U (en) * | 2016-08-08 | 2017-02-01 | 北京神雾环境能源科技集团股份有限公司 | Heat accumulation formula gas fired radiant tubes burner |
-
2016
- 2016-08-08 CN CN201610644099.8A patent/CN106122962A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5515794A (en) * | 1995-01-23 | 1996-05-14 | Texaco Inc. | Partial oxidation process burner with recessed tip and gas blasting |
| CN2245759Y (en) * | 1995-08-03 | 1997-01-22 | 曾振洲 | Torsion band insertion piece radiation pipe |
| CN201363728Y (en) * | 2009-03-06 | 2009-12-16 | 苏和 | Air jet flow self-preheating burner nozzle |
| CN202177101U (en) * | 2011-07-26 | 2012-03-28 | 武汉宇宙科技有限公司 | Preheating type radiant tube combustion gas burner |
| CN204806401U (en) * | 2015-05-29 | 2015-11-25 | 北京神雾环境能源科技集团股份有限公司 | Heat storage burner |
| CN205919324U (en) * | 2016-08-08 | 2017-02-01 | 北京神雾环境能源科技集团股份有限公司 | Heat accumulation formula gas fired radiant tubes burner |
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