CN202947135U - Radiant tube burner nozzle sleeve - Google Patents
Radiant tube burner nozzle sleeve Download PDFInfo
- Publication number
- CN202947135U CN202947135U CN 201220587195 CN201220587195U CN202947135U CN 202947135 U CN202947135 U CN 202947135U CN 201220587195 CN201220587195 CN 201220587195 CN 201220587195 U CN201220587195 U CN 201220587195U CN 202947135 U CN202947135 U CN 202947135U
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- CN
- China
- Prior art keywords
- sleeve
- radiant tube
- burner
- tube burner
- angling hole
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a radiant tube burner nozzle sleeve. The shape of small holes in the sleeve wall face of an existing radiant tube burner nozzle sleeve is optimized, and therefore the stability of burning of a radiant tube burner is improved. Inclined holes are evenly distributed in the wall face of the sleeve, close to the outlet side of a sleeve necking opening, and blunt body stop blocks are evenly distributed among the inclined holes. The radiant tube burner nozzle sleeve is simple in structure, improves the performance of the radiant tube burner, and improves the stability of flames.
Description
Technical field
The utility model relates to radiant tube burner, relates in particular to a kind of radiant tube burner burner sleeve.
Background technology
Radiation tube burner system is contactless mode of heating because of it, can provide cleaning, uniform temperature field as thermal source, particularly require extensive application under clean temperature and particular job atmosphere at industry heating, such as production technologies such as metal product annealing processing, craft artistic pottery and porcelain, food dryings.Its principle is to provide heat to add heat radiation tube by radiation pipe burner tip system combustion of fossil fuels, hyperthermia radiation tube wall face is by thermal-radiating mode heated parts or product, because workpiece and radiant tube are mainly to carry out the heat transmission by thermal-radiating mode, heated parts can carry out in the atmosphere of particular requirement, satisfies the specific heat request that adds of different product.
Radiant tube burner burner part is comprised of main burner, igniting burner on duty etc., and wherein the burner sleeve is the critical component of main burner.Can make the radiant tube burner burner realize fractional combustion by the burner sleeve, namely keep the rich fuel/air mixture of high fuel equivalence ratio/circulating flue gas premixed flame in the burner sleeve, and be air and circulating flue gas outside the burner sleeve, form the fractional combustion of rich fuel flame and two kinds of combustion systems of fuel-sean material flame in main combustion zone, thereby reduce the discharging of burning pollutant.In existing domestic and international radiant tube combustion system burner sleeve technology; usually can arrange equally distributed a few row's aperture apart from the reducing outlet on radiant tube burner burner sleeve tube wall surface; the hole be shaped as circle; the central axis in hole is perpendicular to radiant tube wall (sleeve axis), the diameter homogeneous in hole.These circular holes are when radiant tube burner is worked, change with combustion conditions and can regulate the initial fire location of peripheral fractional combustion flame, realize that burner sleeve exit end face is with a circle flammule outward, thereby improve burner flame stability, can effectively expand the combustion limits of burner.
Summary of the invention
The utility model is optimized for the hole shape on existing radiant tube burner burner sleeve tube wall surface, improves flame root stability, thereby improves the performance of radiant tube burner.
For achieving the above object, the utility model is taked following technical scheme:
A kind of radiant tube burner burner sleeve, on described sleeve wall near the sleeve reducing outlet side angling hole of evenly arranging, the bluff body block of evenly arranging between angling hole.
Technique scheme is improved the radiant tube burner burner sleeve equal diameter of routine, the hole shape of vertical walls,
According to flow field mechanics flow field characteristic, arranging angling hole, angling hole axis and sleeve axis angle between 15 °～75 ° near sleeve reducing outlet side, make flame easily form, easily at sleeve outside formation one circle flame, improve flame blow-off limit speed, thereby improve flame holding, the increase of bluff body, more be conducive to form stable flammule, therefore more be conducive to the adjustment of radiant tube burner fired heat duty.Simultaneously, the bluff body block of evenly arranging on opening area sleeve wall can form local return behind at bluff body, and the flame that can further form angling hole plays the effect of strengthening steady combustion.
On above-mentioned sleeve wall near the angling hole side upright opening of evenly arranging, the bluff body block of all evenly arranging between described upright opening and between upright opening and angling hole.
The utility model is simple in structure, has improved the performance of radiant tube burner, has improved flame holding.
Description of drawings
Fig. 1 is the flame organisation figure of conventional radiant tube burner;
Fig. 2 is front view of the present utility model;
Fig. 3 is cutaway view of the present utility model.
Description of reference numerals: 1-cartridge; The 2-burner; The 3-sleeve; The 4-radiant tube; The 5-fuel-rich regions; The 6-small sircle hole; The 7-elliptical aperture; 8-bluff body block; 9-flame; The 10-circular hole.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model content is described further.
As shown in Figure 1, cartridge 1 is arranged on burner 2 center lines, cartridge 1 surrounding space is air (perhaps air and circulating flue gas mist), air (there is no fuel) between sleeve 3 and radiant tube 4, fuel and air mix the fuel-rich regions 5 that forms and are positioned at sleeve 3, have small sircle hole 6 arrays of four row equally distributed equal diameters and vertical walls on the necking end wall of sleeve 3, small sircle hole 6 positions of the most close sleeve 3 reducing outlet sides can form flame 9.
As shown in Fig. 2,3, near elliptical aperture 7 arrays that sleeve 3 outlet sides adopt two rows evenly to arrange, the axis angle of the axis of elliptical aperture 7 and sleeve 3 is between 15 °～75 °, and the major axis of elliptical aperture 7 is 14mm, and minor axis is 10mm; Adopt two rows evenly to arrange and circular hole 10 arrays of vertical walls near elliptical aperture 7 sides, bluff body block 8 arrays of the equilateral triangle of evenly arranging between every row's elliptical aperture 7 and circular hole 10 simultaneously.
Claims (6)
1. radiant tube burner burner sleeve is characterized in that: on described sleeve wall near the sleeve reducing outlet side angling hole of evenly arranging, the bluff body block of evenly arranging between described angling hole.
2. radiant tube burner burner sleeve as claimed in claim 1, it is characterized in that: the angle of described angling hole axis and sleeve axis is between 15 °～75 °.
3. radiant tube burner burner sleeve as claimed in claim 1 is characterized in that: on described sleeve wall near the angling hole side upright opening of evenly arranging, the bluff body block of all evenly arranging between described upright opening and between upright opening and angling hole.
4. radiant tube burner burner sleeve as claimed in claim 3, it is characterized in that: described upright opening is circular hole.
5. described radiant tube burner burner sleeve as arbitrary in claim 1-3, it is characterized in that: described angling hole is elliptical aperture.
6. described radiant tube burner burner sleeve as arbitrary in claim 1-3, it is characterized in that: the cross sectional shape of described bluff body block is triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220587195 CN202947135U (en) | 2012-11-08 | 2012-11-08 | Radiant tube burner nozzle sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220587195 CN202947135U (en) | 2012-11-08 | 2012-11-08 | Radiant tube burner nozzle sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202947135U true CN202947135U (en) | 2013-05-22 |
Family
ID=48422832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220587195 Expired - Lifetime CN202947135U (en) | 2012-11-08 | 2012-11-08 | Radiant tube burner nozzle sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202947135U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107270288A (en) * | 2017-08-07 | 2017-10-20 | 段秀春 | Common mode synchronized model industrial smoke resume combustion circular treatment module, device and method |
-
2012
- 2012-11-08 CN CN 201220587195 patent/CN202947135U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107270288A (en) * | 2017-08-07 | 2017-10-20 | 段秀春 | Common mode synchronized model industrial smoke resume combustion circular treatment module, device and method |
| CN107270288B (en) * | 2017-08-07 | 2023-03-14 | 段秀春 | Common-mode synchronous industrial flue gas after-combustion circulating treatment module, device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |