CN205191571U - Flame stabilizer of venturi combustor - Google Patents
Flame stabilizer of venturi combustor Download PDFInfo
- Publication number
- CN205191571U CN205191571U CN201521001791.6U CN201521001791U CN205191571U CN 205191571 U CN205191571 U CN 205191571U CN 201521001791 U CN201521001791 U CN 201521001791U CN 205191571 U CN205191571 U CN 205191571U
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- CN
- China
- Prior art keywords
- venturi
- flame holder
- cancave cambered
- cambered surface
- burner
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model provides a flame stabilizer of venturi combustor, the venturi combustor includes that venturi, nozzle reach flame stabilizer, venturi has the inlet end and gives vent to anger the end, the nozzle sets up the inlet end, flame stabilizer sets up the end of giving vent to anger, flame stabilizer includes to have the body of upper surface and lower surface, and runs through the central main aperture of body and encircleing a plurality of through -holes of center main aperture, the body lower surface is the concave arc face.
Description
Technical field
The present invention relates to a kind of venturi burner, particularly a kind of flame holder improving the venturi burner of combustion stability.
Background technology
In petrochemical equipment, unnecessary, harmful, the unbalanced waste gas discharged in the timely process for producing device of Venting and Flare Stack System energy, and the defective gas produced when can process test run, start-stop car, and a large amount of gases of instantaneous releasing during accident, assurance device is normal, safe operation.Torch in combustion, the reason such as the mixed gas firing time at flame crest of flame place is short, it is insufficient to burn or gas flow rate is excessive, make some not fire mixed gas to flow out from torch, do not fire in mixed gas containing a large amount of noxious emission, not only contaminated air, serious will cause blast, fire, even causes casualties.
Venting and Flare Stack System generally adopts injection type burner, and it comprises some venturi burners.The head of venturi burner is generally provided with flame holder, for stabilizing the flame.
Summary of the invention
In view of this, the present invention proposes a kind of flame holder improving the venturi burner of steady flame ability.
A kind of flame holder of venturi burner, described venturi burner comprises Venturi tube, nozzle and described flame holder, described Venturi tube has inlet end and outlet side, described nozzle is arranged on described inlet end, described flame holder is arranged on described outlet side, described flame holder comprises the body with upper surface and lower surface, and runs through the center main aperture of described body and the some through holes around described center main aperture, and described body lower surface is cancave cambered surface.
In one embodiment, described body and described Venturi tube are integrated casting.
In one embodiment, the cancave cambered surface of described body lower surface is interior forms a whirlpool district, bottom.
In one embodiment, the lowest part of described cancave cambered surface is positioned at described center main bore edges, and the direction that the surface of described cancave cambered surface is radially inside smoothly declines always.
In one embodiment, described body upper surface is cancave cambered surface, forms a whirlpool district, top in it.
In one embodiment, the lowest part of described upper surface cancave cambered surface is between described Venturi tube inwall and center main bore edges, the surface of described upper surface cancave cambered surface drops to described lowest part from described Venturi tube interior walls be smooth, then smoothly rise to described center main bore edges from described lowest part, described upper surface cancave cambered surface at the height of outermost radial outside higher than the height of radial direction inner side.
In sum, the invention provides a kind of flame holder of venturi burner, by being processed into by the lower surface of flame holder body, there is cancave cambered surface, make to form a circle whirlpool district around body, and the whirlpool size formed is larger, the blockage ratio of flame holder is larger, large whirlpool yardstick is increased, the large vortex shedding time is elongated, give and do not fire mixed gas enough ignition time, thus the stability that burner flame is burnt improves.
Accompanying drawing explanation
Fig. 1 is the perspective view of the venturi burner of one embodiment of the invention.
Fig. 2 is the sectional view of venturi burner in Fig. 1.
Detailed description of the invention
Before describing the embodiments in more detail, it should be understood that and the invention is not restricted to detailed construction in the application hereafter or described in accompanying drawing or arrangement of elements.The present invention can be the embodiment that alternate manner realizes.And, should be appreciated that wording used herein and term are only used as to describe purposes, should being construed as limiting property not explain.Similar wording meant and comprised item listed thereafter, its equivalent and other additional things " comprising " used herein, " comprising ", " having " etc.Particularly, when describing " certain element ", the quantity that the present invention does not limit this element is one, also can comprise multiple.
Fig. 1 is the perspective view of the venturi burner of one embodiment of the invention, as shown in Figure 1, described venturi burner comprises Venturi tube 10, nozzle 12 and flame holder 14, Venturi tube 10 has inlet end 16 and outlet side 18, nozzle 12 is arranged on inlet end 16, and flame holder 14 is arranged on outlet side 18.
Please also refer to Fig. 2, Fig. 2 is the sectional view of venturi burner, flame holder 14 comprises the body 24 with upper surface 20 and lower surface 22, and runs through the center main aperture 26 of body 24 and the some through holes 28 around center main aperture 26 setting, and body 24 upper surface 20 is cancave cambered surface 30.In the present embodiment, flame holder body 24 and Venturi tube 10 are integrated casting, and therefore, cancave cambered surface 30 is arranged on body 24 upper surface 20 and Venturi tube 10 inwall junction.
The lowest part A of cancave cambered surface 30 is positioned at inwall and center main aperture 26 edge of Venturi tube 10.That is, the surface of cancave cambered surface 30 drops to lowest part A from Venturi tube 10 interior walls be smooth, then smoothly rises to center main aperture 26 edge from lowest part A.Cancave cambered surface 30 at the height of outermost radial outside (being namely positioned at Venturi tube 10 inwall) higher than the height of radial direction inner side (being namely positioned at main empty 26 edges).
Form whirlpool district, top 32 in cancave cambered surface 30, the whirlpool district, top 32 formed has stabilizing the flame and improves effect of flame burning efficiency.And cancave cambered surface 30 caves in, size is larger, and the whirlpool size of formation is larger, therefore can reduce shedding frequence, extend the burning time of incoming mixture, thermal source in burning time longer whirlpool is more powerful, and mixture combustion is more abundant, thus enhances the stability of flame combustion.In addition, whirlpool district 32 size is larger, and whirlpool intensity is stronger, and around vortices entrain, the ability of unburned mixture is stronger, unit distance and just have more polyhybird gas in the unit interval and be fully burned, and improves the flame burning efficiency of burner.
Flame holder 14 also comprises the cylindrical shell 25 be connected with Venturi tube 10 outer wall, and the outlet side 18 that cylindrical shell 25 is arranged on Venturi tube 10 enters have an impact to flame combustion in order to intercept outside air, thus stabilizes the flame.
Please continue to refer to Fig. 2, the lower surface 22 of flame holder body 24 is also cancave cambered surface 34, and cancave cambered surface 34 is arranged on body 24 lower surface 22 and Venturi tube 10 inwall junction.
The lowest part B of cancave cambered surface 34 is positioned at center main aperture 26 edge.That is, the direction that the surface of cancave cambered surface 34 is radially inside smoothly declines always, and (certainly, the decline referred to here is with the angle from depression.When Venturi tube is normally placed, rise in the direction that the apparent height of cancave cambered surface 34 is radially inside always).
Form whirlpool district, bottom 36 in cancave cambered surface 34, the whirlpool district, bottom 36 formed has the effect stabilized the flame.Burner can accumulate and a certain amount ofly not fire mixed gas in flame combustion process on the downside of flame holder body 24, these are not fired mixed gas and entrainment in whirlpool district, bottom 36 by bottom whirlpool, increase the blockage ratio of flame holder 14, and cancave cambered surface 34 caves in, size is larger, the large whirlpool yardstick formed increases, therefore extend the large vortex shedding time, give not fire mixed gas enough ignition time, combustion stability is improved.
In sum, the invention provides a kind of flame holder of venturi burner, by the upper surface of flame holder body and lower surface are set to cancave cambered surface, make around body, to form whirlpool district, top and whirlpool district, bottom, the top whirlpool formed and bottom whirlpool all can entrainment and not fire mixed gas around, extend the burning time of gaseous mixture, make gaseous mixture Thorough combustion.Therefore, flame holder of the present invention enhances the stability of flame combustion, improves efficiency of combustion, reduces unburned gas and is discharged into the external world.
Concept described herein may be embodied to other form when not departing from its spirit and characteristic.Disclosed specific embodiment should be regarded as exemplary instead of restrictive.Therefore, scope of the present invention is by appended claim, instead of determines according to these descriptions before.Any change in the letter and equivalency range of claim all should belong to the scope of these claims.
Claims (6)
1. the flame holder of a venturi burner, described venturi burner comprises Venturi tube, nozzle and described flame holder, described Venturi tube has inlet end and outlet side, described nozzle is arranged on described inlet end, described flame holder is arranged on described outlet side, and described flame holder comprises the body with upper surface and lower surface, and runs through the center main aperture of described body and the some through holes around described center main aperture, it is characterized in that, described body lower surface is cancave cambered surface.
2. the flame holder of venturi burner as claimed in claim 1, it is characterized in that, described body and described Venturi tube are integrated casting.
3. the flame holder of venturi burner as claimed in claim 2, is characterized in that, forms a whirlpool district, bottom in the cancave cambered surface of described body lower surface.
4. the flame holder of venturi burner as claimed in claim 1, it is characterized in that, the lowest part of described cancave cambered surface is positioned at described center main bore edges, and the direction that the surface of described cancave cambered surface is radially inside smoothly declines always.
5. the flame holder of venturi burner as claimed in claim 1, it is characterized in that, described body upper surface is cancave cambered surface, forms a whirlpool district, top in it.
6. the flame holder of venturi burner as claimed in claim 5, it is characterized in that, the lowest part of described upper surface cancave cambered surface is between described Venturi tube inwall and center main bore edges, the surface of described upper surface cancave cambered surface drops to described lowest part from described Venturi tube interior walls be smooth, then smoothly rise to described center main bore edges from described lowest part, described upper surface cancave cambered surface at the height of outermost radial outside higher than the height of radial direction inner side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521001791.6U CN205191571U (en) | 2015-12-04 | 2015-12-04 | Flame stabilizer of venturi combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521001791.6U CN205191571U (en) | 2015-12-04 | 2015-12-04 | Flame stabilizer of venturi combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205191571U true CN205191571U (en) | 2016-04-27 |
Family
ID=55784554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521001791.6U Withdrawn - After Issue CN205191571U (en) | 2015-12-04 | 2015-12-04 | Flame stabilizer of venturi combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205191571U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351930A (en) * | 2015-12-04 | 2016-02-24 | 深圳智慧能源技术有限公司 | Flame holder of Venturi combustor |
| WO2017092045A1 (en) * | 2015-12-04 | 2017-06-08 | 深圳智慧能源技术有限公司 | Flame stabilizer of venturi burner |
| WO2017092044A1 (en) * | 2015-12-04 | 2017-06-08 | 深圳智慧能源技术有限公司 | Flame stabilizer of venturi burner |
| CN109489036A (en) * | 2017-09-12 | 2019-03-19 | 韦伯-斯蒂芬产品有限公司 | Burner tube and Venturi tube for fuel gas oven |
| US10667648B2 (en) | 2015-10-12 | 2020-06-02 | Weber-Stephen Products Llc | Burner tube and venturi for gas grill |
-
2015
- 2015-12-04 CN CN201521001791.6U patent/CN205191571U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10667648B2 (en) | 2015-10-12 | 2020-06-02 | Weber-Stephen Products Llc | Burner tube and venturi for gas grill |
| US11246451B2 (en) | 2015-10-12 | 2022-02-15 | Weber-Stephen Products Llc | Burner tube for gas grill |
| US11395560B2 (en) | 2015-10-12 | 2022-07-26 | Weber-Stephen Products Llc | Burner tube and venturi for gas grill |
| US11903521B2 (en) | 2015-10-12 | 2024-02-20 | Weber-Stephen Products Llc | Burner tube for gas grill |
| CN105351930A (en) * | 2015-12-04 | 2016-02-24 | 深圳智慧能源技术有限公司 | Flame holder of Venturi combustor |
| CN105351930B (en) * | 2015-12-04 | 2017-04-12 | 深圳智慧能源技术有限公司 | Flame holder of Venturi combustor |
| WO2017092045A1 (en) * | 2015-12-04 | 2017-06-08 | 深圳智慧能源技术有限公司 | Flame stabilizer of venturi burner |
| WO2017092044A1 (en) * | 2015-12-04 | 2017-06-08 | 深圳智慧能源技术有限公司 | Flame stabilizer of venturi burner |
| CN109489036A (en) * | 2017-09-12 | 2019-03-19 | 韦伯-斯蒂芬产品有限公司 | Burner tube and Venturi tube for fuel gas oven |
| CN109489036B (en) * | 2017-09-12 | 2020-07-14 | 韦伯-斯蒂芬产品有限公司 | Burner and venturi for gas oven |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160427 Effective date of abandoning: 20170412 |