CN205919324U - Heat accumulation formula gas fired radiant tubes burner - Google Patents
Heat accumulation formula gas fired radiant tubes burner Download PDFInfo
- Publication number
- CN205919324U CN205919324U CN201620852365.1U CN201620852365U CN205919324U CN 205919324 U CN205919324 U CN 205919324U CN 201620852365 U CN201620852365 U CN 201620852365U CN 205919324 U CN205919324 U CN 205919324U
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- China
- Prior art keywords
- muffle
- pipe
- radiant tube
- cover
- combustion device
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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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- Air Supply (AREA)
- Gas Burners (AREA)
- Combustion Of Fluid Fuel (AREA)
Abstract
The utility model relates to a high temperature air heating technology field especially relates to a heat accumulation formula gas fired radiant tubes burner, including heat accumulator, radiant tube sleeve pipe, spray tube, shower nozzle, first muffle cover and second muffle cover, during the radiant tube sleeve pipe was located in proper order to heat accumulator, first muffle cover and second muffle cover, first muffle cover was the convergent shape from one end to the one end of being close to second muffle cover of being close to the heat accumulator, during the spray tube inlayed and locates the heat accumulator, the shower nozzle cover was located in the first muffle cover and is connected with the spray tube. Through at the first muffle of shower nozzle exit position cloth cover and second muffle cover, realize the certain interval of formation between flame and the radiant tube sleeve pipe outer wall, reduce the temperature difference of radiant tube sleeve pipe surface, lengthen flame length simultaneously, carry high radiation pipe box hollow shaft and to distributive uniformity of temperature, lengthen radiant tube sleeve pipe life, improve the thermal treatment product and add the thermal mass, carry the intraductal combustion thermal efficiency of high radiation pipe box, fuel economy, NOX emission in the reduction flue gas.
Description
Technical field
This utility model is related to high temperature air technical field of heating, more particularly, to a kind of regenerative gas radial canal burning dress
Put.
Background technology
Relatively advanced HTAC is applied on gas fired radiant tubes burner heat accumulation type radiant tube, main
Will be with coal gas as fuel, in special sealing shroud combustion inner pipe, by the sleeve surface that is heated with thermal-radiating form heat
Pass to heating object, combustion product is not contacted with heating object, and by the setting of heat storage using set combustion inner pipe
The sensible heat of flue gas comes warm-up combustion-supporting air or combustion gas afterwards, has the spies such as combustion thermal efficiency is high, stable, equipment dependability is high
Point, is widely used in various heat-treatment furnaces 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 employs 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 auxiliary air spout of different sizes
To the troubled water of direction combustion product gases and auxiliary air, thus improving the Temperature Distribution of radial canal circumferential direction.However, radiation
After pipe circumferential direction combustion product gases are mixed with auxiliary air, reduce nox discharge to a certain extent, but flame directly washes away
Radiation pipe-in-pipe tube wall, the service life of impact set tube wall Axial Temperature Distribution uniformity and sleeve pipe.
The Japan Patent of Publication No. jp2007-278963a provides a kind of regenerative radiant tube burner, by pipe
Internal lining pipe and combustion barrel device iris action make combustion air occur fractional combustion.But this burner apparatus adjusts air to be divided
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 with combustion thermal efficiency, sleeve pipe tube wall temperature in sleeve pipe
In distributing homogeneity and flue gas, nox discharge capacity is evaluated.At present, because regenerative gas radiant tube combustion device covers combustion inner pipe
Organizational structure is unreasonable, has a strong impact on the set uniformity of tube wall Axial Temperature Distribution and the service life of sleeve pipe.
The uniformity of radial canal surface temperature distribution is to weigh an important indicator of radial canal performance, and it mainly has influence on
Life-span of the heating quality of radial canal and radial canal etc., and the principal element affecting radial canal surface temperature distribution uniformity is combustion
Gas and the mixing situation of air.Combustion gas is lower with the mixing intensity of air, then incorporation time is elongated, flame elongates, and combustion gas can not
Burn completely, radial canal surface temperature distribution uniformity reduces, combustion gas also can be caused to waste, reduce the efficiency of heating surface of radial canal；
If air is excessive with the mixing intensity of combustion gas, incorporation time shortens, flame is too short, equally can make radial canal surface temperature distribution
Inhomogeneities increase.
Utility model content
(1) technical problem to be solved
The purpose of this utility model is to provide a kind of regenerative gas radiant tube combustion device, to solve existing heat accumulating type combustion
Gas radiant tube combustion device second-time burning tissue is unreasonable, and flame export speed is low, poor combustion stability, set tube wall axially temperature
Degree skewness, the problems such as radial canal Service Life of Casing is short.
(2) technical scheme
In order to solve above-mentioned technical problem, this utility model provides a kind of regenerative gas radiant tube combustion device, bag
Include heat storage, radiation pipe-in-pipe, jet pipe, shower nozzle, the first muffle set and the second muffle set, described heat storage, described first muffle
Set and described second muffle set be sequentially arranged in described radiation pipe-in-pipe in, described first muffle set near described heat storage one
Hold in tapered shape to the one end covering near described second muffle；Described jet pipe is embedded in described heat storage, described nozzle set
It is connected in described first muffle set and with described jet pipe.
Wherein, described second muffle covers for straight tube shape.
Wherein, the outside of described first muffle set one end near the second muffle set is provided with fin.
Wherein, described shower nozzle is provided with swirl vane.
Wherein, described first muffle set with the second muffle set against fitting.
Wherein, the axial length of described second muffle set and the ratio of the axial length of described radiation pipe-in-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
Technique scheme of the present utility model has the advantage that this utility model provides a kind of regenerative gas spoke
Penetrate combustion tube, by the first muffle set and the second muffle set of the gas outlet location arrangements tapered shape in shower nozzle, to realize fire
Form certain intervals between flame and radial canal sleeve outer wall, the length of flame can be extended simultaneously, improve radial canal sleeve pipe axially temperature
Degree distributing homogeneity, reduces the temperature difference of radial canal bushing outer surface, service life of radiant tubes Service Life of Casing, improves second-time burning
Tissue is unreasonable, improves combustion gas and mixes inequality with air, improves radiation pipe-in-pipe internal combustion and heats efficiency, saves fuel, make flue gas
Middle noxDischarge capacity reduces, and improves heat treated article heating quality.
Brief description
Fig. 1 is the sectional view of this utility model embodiment regenerative gas radiant tube combustion device burning tubular construction.
In figure, 1: heat storage；2: the first muffle sets；3: shower nozzle；4: the second muffle sets；5: radiation pipe-in-pipe；6: gas injection
Pipe.
Specific embodiment
With reference to the accompanying drawings and examples specific embodiment of the present utility model is described in further detail.Following reality
Apply example to be used for this utility model is described, but be not limited to scope of the present utility model.
In description of the present utility model, it should be noted that term " on ", D score, " interior ", the orientation of the instruction such as " outward "
Or position relationship is based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplification is retouched
State, rather than instruction or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation,
Therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second " are only used for describing purpose, and can not
It is interpreted as indicating or imply relative importance.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " sets
Have ", should be interpreted broadly, for example, it may be being fixedly connected or detachably connecting " being placed in ", " being connected ", " connection " etc.
Connect, or be integrally connected；Can be to be mechanically connected or electrically connect；Can be to be joined directly together it is also possible to pass through middle matchmaker
Jie is indirectly connected to, and can be the connection of two element internals.For the ordinary skill in the art, can be with concrete condition
Understand concrete meaning in this utility model for the above-mentioned term.
As shown in figure 1, this utility model provides a kind of regenerative gas radiant combustion pipe, the in figure direction of arrow represents spoke
Penetrate the flow direction of combustion gas in pipe-in-pipe, and represent the front extreme direction of radiation pipe-in-pipe.This utility model includes heat storage 1, spoke
Penetrate pipe-in-pipe 5, jet pipe 6, shower nozzle 3, the first muffle set 2 and the second muffle set 4, heat storage 1, the first muffle set 2 and the second muffle
Set 4 is sequentially arranged in institute's pipe-in-pipe, as illustrated, heat storage 1, the first muffle set 2 and the second muffle set 4 are from radiation pipe-in-pipe 5
Rear end be arranged in order to front end.One end that first muffle set 2 covers 4 from one end of close heat storage 1 to close second muffle is in
Tapered shape, sees flare shape from front to back.Jet pipe 6 is embedded in heat storage 1, and shower nozzle 3 is sheathed on the first muffle
It is connected in set 2 and with jet pipe 6.Preferably, heat storage 1 adopts cellular heat storage.During use, combustion air flows from jet pipe 6
Enter, flow to shower nozzle 3, combustion air, through being preheated during heat storage 1, enters the first muffle set 2, with the ejection of shower nozzle 3 center
Coal gas mixes, and starts to burn in the front end of the first muffle set of tapered shape, and finally forms temperature in the second muffle set 4 and divides
Cloth is uniformly, burn completely flame.
This utility model passes through, in shower nozzle 3 exit position arrangement the first muffle set 2 and the second muffle set 4, to make flame and spoke
Penetrate formation certain intervals between pipe-in-pipe 5 pipe outer wall, realize set tube wall Axial Temperature Distribution uniform.First muffle set 2 is in gradually
Contracting shape, for example, tubaeform, improve the speed of flame export, make combustion air and combustion gas in the first muffle of tapered shape
Cover and be more fully mixed at 2 front ends, combustion stability strengthens.Preferably, described first muffle set 2 and described second muffle set 4
Be made up of carborundum, can more preferably realize above-mentioned technique effect.Cellular heat storage 1, makes heat storage 1 specific surface area increase,
Improve heat conductivility.
By shower nozzle 3 exit position arrangement first muffle set 2 and second muffle set 4, and coordinate muffle set shape and
Material, can improve radiation pipe-in-pipe 5 Axial Temperature Distribution uniformity, reduce the temperature difference of radial canal bushing outer surface, can 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 and sky
The mixing situation of gas, radiation pipe-in-pipe internal combustion heats efficiency high, saves fuel, no in flue gasxDischarge capacity reduces.
Specifically, the outside of one end that the first muffle set 2 covers 4 near the second muffle is provided with fin.Can effectively enhanced rad
Pipe radial temperature profile, realizes set tube wall Axial Temperature Distribution uniform.First muffle set 2 with the second muffle set 4 against fitting,
The gap that heat is formed between the first muffle set 2 and the second muffle set 4 is avoided directly to wash away radiation pipe-in-pipe 5.
Specifically, the second muffle set 4 is straight tube shape, it is to avoid flame directly washes away radiation pipe-in-pipe tube wall, improves sleeve pipe
Tube wall Axial Temperature Distribution uniformity and Service Life of Casing.
Specifically, described shower nozzle 3 carries swirl vane.The spout 3 that combustion air flows through with swirl vane carries further
High gas flow rate, air-flow volume inhales the coal gas that spout sprays rotate at high speed to make spout, 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 preheating through described heat storage 1
DEG C, described first muffle set 2 is entered with tense speed 30～50m/s, after flowing through the described shower nozzle 3 with vane cyclone, further
Improve combustion air flow velocity after preheating, the coal gas being sprayed with described shower nozzle 3 center is mixed, before described first muffle set 2
End starts to burn, and forms combustor in described first muffle set 2, and the flame being formed in described first muffle set 2 passes through institute
State radiation pipe-in-pipe 5, be axially formed homogeneous temperature field in radial canal, reduce local temperature difference, radial canal surface temperature is axially distributed
Uniformity is improved, the service life of radiant tubes life-span, improves heat treated article heating quality.
Specifically, the axial length of the second muffle set 4 and the ratio of the axial length of radiation pipe-in-pipe 5 are not less than 1/3, can have
Effect reduces formation flame in described first muffle set 2 and radiation tube wall high temperature is washed away.
In sum, this utility model passes through, in shower nozzle 3 exit position cloth the first muffle set 2 and the second muffle set 4, to realize
Form certain intervals between flame and radiation pipe-in-pipe 5 outer wall, reduce the temperature difference of radial canal bushing outer surface, can simultaneously
Extend the length of flame, improve radial canal sleeve pipe axial direction temperature distribution evenness, service life of radiant tubes Service Life of Casing, improve at heat
Reason control of industrial furnace home, improves the troubled water of combustion gas and air, improves radiation pipe-in-pipe internal combustion and heats efficiency, saves
Fuel, reduces no in flue gasxDischarge capacity.
The above is only preferred implementation of the present utility model it is noted that common skill for the art
For art personnel, on the premise of without departing from this utility model know-why, some improvement and modification can also be made, these change
Enter and also should be regarded as protection domain of the present utility model with modification.
Claims (8)
1. a kind of regenerative gas radiant tube combustion device it is characterised in that: include heat storage, radiation pipe-in-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
State in radiation pipe-in-pipe, described first muffle set is from the one end near one end of described heat storage to close described second muffle set
In tapered shape；Described jet pipe is embedded in described heat storage, described nozzle set located at described first muffle set in and with described
Jet pipe connects.
2. regenerative gas radiant tube combustion device according to claim 1 it is characterised in that: described second muffle covers and is
Straight tube shape.
3. regenerative gas radiant tube combustion device 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 is with the second muffle set against fitting.
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 is not less than 1/3 with the ratio of the axial length of described radiation pipe-in-pipe.
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 |
|---|---|---|---|
| CN201620852365.1U CN205919324U (en) | 2016-08-08 | 2016-08-08 | Heat accumulation formula gas fired radiant tubes burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620852365.1U CN205919324U (en) | 2016-08-08 | 2016-08-08 | Heat accumulation formula gas fired radiant tubes burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205919324U true CN205919324U (en) | 2017-02-01 |
Family
ID=57870501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620852365.1U Expired - Fee Related CN205919324U (en) | 2016-08-08 | 2016-08-08 | Heat accumulation formula gas fired radiant tubes burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205919324U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122962A (en) * | 2016-08-08 | 2016-11-16 | 北京神雾环境能源科技集团股份有限公司 | A kind of regenerative gas radiant tube combustion device |
-
2016
- 2016-08-08 CN CN201620852365.1U patent/CN205919324U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122962A (en) * | 2016-08-08 | 2016-11-16 | 北京神雾环境能源科技集团股份有限公司 | A kind of regenerative gas radiant tube combustion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102200 Beijing city Changping District Machi Town cow Road No. 18 Patentee after: Shenwu Technology Group Co.,Ltd. Address before: 102200 Beijing city Changping District Machi Town cow Road No. 18 Patentee before: BEIJING SHENWU ENVIRONMENT AND ENERGY TECHNOLOGY Co.,Ltd. |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190121 Granted publication date: 20170201 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220921 Granted publication date: 20170201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 |