CN104421939A - Zigzag gas burner - Google Patents
Zigzag gas burner Download PDFInfo
- Publication number
- CN104421939A CN104421939A CN201310393968.0A CN201310393968A CN104421939A CN 104421939 A CN104421939 A CN 104421939A CN 201310393968 A CN201310393968 A CN 201310393968A CN 104421939 A CN104421939 A CN 104421939A
- Authority
- CN
- China
- Prior art keywords
- gas
- zigzag
- gas nozzle
- nozzle
- conical
- 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
Classifications
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- 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
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
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- 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
- F23D14/48—Nozzles
- F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
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- 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
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/82—Preventing flashback or blowback
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/007—Mixing tubes, air supply regulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2209/00—Safety arrangements
- F23D2209/10—Flame flashback
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2209/00—Safety arrangements
- F23D2209/20—Flame lift-off / stability
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pre-Mixing And Non-Premixing Gas Burner (AREA)
Abstract
The invention discloses a zigzag gas burner. A tapered gas nozzle is formed in the center of the inside of a jet. Air distribution blades are circumferentially formed between the jet and the tapered gas nozzle. Zigzag flame stabilizing bodies are arranged on the circumference of the taped gas nozzle. Gas spraying holes are formed in the tapered gas nozzle. Gas enters from the tapered gas nozzle and is sprayed out through the gas spraying holes. Gas distributed air enters a circular channel between the jet and the tapered gas nozzle and generates rotational-flow distributed air by the aid of the air distribution blades with angles. At the front end of the jet, the gas and the rotational-flow distributed air are intensely mixed and then meet an igniting device to fire. The zigzag gas burner is effective in preventing the flame from lifting, returning and extinguishing.
Description
Technical field
The present invention relates to a kind of gas burner, particularly a kind of zigzag gas burner.
Background technology
The gas burner that current domestic industry boiler and station boiler use, some design do not have steady flame device, some is designed with steady flame device, but because its structural design is bad, due to the impact of the extraneous factors such as gaseous-pressure fluctuation and outer gas stream disturbance in running, easy generation combustion flame is unstable, and the problem of flame lifting, tempering, fire extinguishing, affects the stable operation of gas burner.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of zigzag gas burner, combustion flame can have been made to stablize, ensure gas burner stable operation, had the advantages that to prevent flame lifting, tempering and fire extinguishing.
To achieve these goals, the technical solution used in the present invention is: a kind of zigzag gas burner, be made up of spout, conical gas nozzle, the steady flame body of zigzag, air distribution blade, spout internal center is provided with conical gas nozzle, air distribution blade is circumferentially with between spout and conical gas nozzle, be circumferentially with the steady flame body of zigzag at conical gas nozzle circular cone, conical gas nozzle is provided with gas jet orifice.
Described spout is the cylindrical tube that heat-resisting steel material manufactures.
Described conical gas nozzle is heat-resisting steel material manufacture, and conical gas nozzle leading portion is a cone with certain taper, and back segment is a cylindrical tube.
Described conical gas nozzle is provided with ringwise at least two circle gas jet orifices.
The diameter of phi of described gas jet orifice is 3 ~ 10mm.
The gross area of single described burner gas jet orifice accounts for 5 ~ 10% of the nozzle gross area.
The steady flame body of described zigzag is heat-resisting steel material manufacture, is distributed in the circumference of circular cone, and its zigzag large I is determined according to the occasion of concrete use.
Described air distribution blade is heat-resisting steel material manufacture, and circumference is distributed between spout and conical gas nozzle, and air distribution blade is provided with angle in the axial direction, and angle is 0 ~ 45 °.
The present invention has the following advantages:
1) adopt the steady flame body structure of zigzag, this is the design feature of this gas burner key, forms recirculating zone and low regime, can ensure that burner catches fire and flameholding by the air draught of steady flame body.
Zigzag structure on the one hand ensures that combustion gas is caught fire, combustion stability in addition, can make that air mixes in time with combustion gas on the other hand, oxygenating and burning.Gas burner with the steady flame body structure of zigzag is tested at 400t/h pulverized-coal fired boiler, 220t/h pulverized-coal fired boiler and 75t/h CFBB, prove that this burner has very strong adaptability to the pressure of combustion gas, kind, catch fire and flameholding, efficiency of combustion is high.
Not only 2) have employed suitable gas jet orifice diameter, spray orifice arrangement and nozzle hole area and gas nozzle area ratio, ensure the rigidity of air-flow and penetration power but also ensure to mix between combustion gas with air and suitable blending space.The gross area of single burner fuel gas hole accounts for 5 ~ 10% of the nozzle gross area, gas jet orifice diameter is Φ 3 ~ Φ 10, arrange from conical gas nozzle 2 radial direction (towards direction, the center of circle) injection diameter in increasing, general layout 2 ~ 4 encloses gas jet orifice, and is arranged in after the high-end place of the steady flame body of zigzag.
3) adopt suitable gaseous-pressure, adopt suitable combustion gas initial velocity, so namely ensure combustion gas catch fire and metastable gas qualitative, take into account air-flow rigidity and mixing intensity, ensure the security of fuel gas buring simultaneously, prevent tempering.General gas rated pressure is 0.03 ~ 0.07Mpa, and the initial velocity of gas jet orifice is 150 ~ 250m/s.
4) suitable air distribution wind speed and air register is adopted, suitable air velocity mixes for catching fire of combustion gas and burns extremely important, air register is for adjusting the spin intensity of air draught, control the mixing of air and combustion gas, burning, length, the diameter of adjustment flame, air distribution wind speed generally gets 20 ~ 40m/s, air register adopts axial blade, by adjustment sharf to angle, regulate flow rotation intensity and flame profile, axial angle is generally 0 ~ 45 °.
Accompanying drawing explanation
Accompanying drawing is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, structural principle of the present invention and operation principle are described in further detail.
See accompanying drawing, a kind of gas burner with the steady flame body of zigzag, be made up of spout 1, conical gas nozzle 2, the steady flame body 3 of zigzag, air distribution blade 4, spout 1 inside center is provided with conical gas nozzle 2, air distribution blade 4 is circumferentially with between spout 1 and conical gas nozzle 2, be circumferentially with the steady flame body 3 of zigzag at conical gas nozzle 2 circular cone, conical gas nozzle 2 is provided with gas jet orifice 5.Spout 1 adopts heat resisting steel manufacture, is a cylindrical tube; Conical gas nozzle 2 adopts heat-resisting steel material manufacture, and leading portion is a cone with certain taper, and back segment is a cylindrical tube, and the cone conical surface is circular layout 2 ~ 4 circle gas jet orifices 5; The steady flame body 3 of zigzag adopts heat resisting steel manufacture, and the steady flame body of zigzag is uniform along the cone circumference of conical gas nozzle 2, and overlaps with the gas jet orifice longitudinal axis on conical gas nozzle 2; Air distribution blade 4 is heat-resisting steel material manufacture, and circumference is distributed between spout 1 and conical gas nozzle 2.Air distribution blade 4 is designed with angle at axis direction.
Operation principle of the present invention is:
When the combustion gas with certain pressure enters conical gas nozzle 2, combustion gas will spray with the gas jet orifice 5 of the speed of 150 ~ 250m/s from conical gas nozzle 2 conical surface, combustion gas air distribution enters the circular passage between spout 1 and conical gas nozzle 2, and produce eddy flow air distribution by the angled air distribution blade 4 of band, strongly mix at the combustion gas of spout front end and eddy flow air distribution and meet igniter and strike sparks, combustion gas is by ignition combustion, eddy flow air distribution forms recirculating zone and low regime through the steady flame body air draught of zigzag, ensure that catching fire and flameholding of burner.
Claims (8)
1. a zigzag gas burner, be made up of spout (1), conical gas nozzle (2), the steady flame body of zigzag (3), air distribution blade (4), it is characterized in that, spout (1) center is provided with conical gas nozzle (2), air distribution blade (4) is circumferentially with between spout (1) and conical gas nozzle (2), be circumferentially with the steady flame body of zigzag (3) at conical gas nozzle (2), conical gas nozzle (2) is provided with gas jet orifice (5).
2. a kind of zigzag gas burner according to claim 1, is characterized in that, described spout (1) is cylindrical tube, and it adopts heat-resisting steel material to make.
3. a kind of zigzag gas burner according to claim 1, it is characterized in that, described conical gas nozzle (2) leading portion is a cone with certain taper, back segment is a cylindrical tube, and conical gas nozzle (2) adopts heat-resisting steel material to make.
4. a kind of zigzag gas burner according to claim 1, is characterized in that, described conical gas nozzle (2) is provided with ringwise at least two circles gas jet orifice (5).
5. a kind of zigzag gas burner according to claim 1, is characterized in that, the gross area of described gas jet orifice (5) accounts for 5 ~ 10% of the nozzle gross area.
6. a kind of zigzag gas burner according to claim 1 or 5, it is characterized in that, the diameter of phi of described gas jet orifice 5 is 3 ~ 10mm.
7. a kind of zigzag gas burner according to claim 1, is characterized in that, the steady flame body of described zigzag (3) is distributed in the circumference of circular cone, and the steady flame body of zigzag (3) adopts heat-resisting steel material to make.
8. a kind of zigzag gas burner according to claim 1, it is characterized in that, described air distribution blade (4) circumference is distributed between spout (1) and conical gas nozzle (2), air distribution blade (4) and axis designs have angle, angle is 0 ~ 45 °, and air distribution blade (4) adopts heat-resisting steel material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310393968.0A CN104421939A (en) | 2013-09-03 | 2013-09-03 | Zigzag gas burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310393968.0A CN104421939A (en) | 2013-09-03 | 2013-09-03 | Zigzag gas burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104421939A true CN104421939A (en) | 2015-03-18 |
Family
ID=52971683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310393968.0A Pending CN104421939A (en) | 2013-09-03 | 2013-09-03 | Zigzag gas burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104421939A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107687637A (en) * | 2017-08-16 | 2018-02-13 | 中润海精密科技有限公司 | A kind of special flabellum component of the ethanol combustor of stable performance |
| CN108157138A (en) * | 2018-01-11 | 2018-06-15 | 白强 | A kind of large size rainer |
| CN108204598A (en) * | 2016-12-16 | 2018-06-26 | 中国石油化工股份有限公司 | Mix flare burner |
| CN110863329A (en) * | 2018-08-28 | 2020-03-06 | 无锡小天鹅电器有限公司 | Nozzle of burner, burner with same and clothes dryer |
-
2013
- 2013-09-03 CN CN201310393968.0A patent/CN104421939A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108204598A (en) * | 2016-12-16 | 2018-06-26 | 中国石油化工股份有限公司 | Mix flare burner |
| CN108204598B (en) * | 2016-12-16 | 2019-09-13 | 中国石油化工股份有限公司 | Mix flare burner |
| CN107687637A (en) * | 2017-08-16 | 2018-02-13 | 中润海精密科技有限公司 | A kind of special flabellum component of the ethanol combustor of stable performance |
| CN107687637B (en) * | 2017-08-16 | 2023-11-03 | 中润海精密科技有限公司 | Special flabellum subassembly of methanol burner of stable performance |
| CN108157138A (en) * | 2018-01-11 | 2018-06-15 | 白强 | A kind of large size rainer |
| CN110863329A (en) * | 2018-08-28 | 2020-03-06 | 无锡小天鹅电器有限公司 | Nozzle of burner, burner with same and clothes dryer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150318 |