CN101936531A - Gas nozzle for industrial kiln and distribution method using same - Google Patents
Gas nozzle for industrial kiln and distribution method using same Download PDFInfo
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- CN101936531A CN101936531A CN 201010515524 CN201010515524A CN101936531A CN 101936531 A CN101936531 A CN 101936531A CN 201010515524 CN201010515524 CN 201010515524 CN 201010515524 A CN201010515524 A CN 201010515524A CN 101936531 A CN101936531 A CN 101936531A
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- gas
- air
- nozzle
- outer tube
- fuel burner
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Abstract
The invention discloses a gas nozzle for an industrial kiln and a distribution method using the same. The gas nozzle for the industrial kiln comprises an air inlet outer tube and a gas inlet inner tube, wherein the outer tube is provided with at least two-stage closures to form at least two-stage accelerating regions; and the front part of the inner tube is provided with a gas outlet on the side face and a baffle plate on the end face, so that gas is mixed with air to form eddy. The distribution method using the gas nozzle comprises a step of mixing the gas and the air in a volume ratio of 1:9. The nozzle can make the gas well mixed in an eddy mixing state, achieves long flame and high rigidity, can make the gas fully combusted and has a stable gas excess air coefficient within 1.05; and compared with the conventional nozzle, the nozzle saves the gas by 30 to 50m<3>/ton and has long service life.
Description
Technical field
The present invention relates to a kind of fuel burner nozzle and air distributing method thereof that is used for Industrial Stoves.
Background technology
The fuel burner nozzle (comprising fuel burner nozzles such as natural gas, coal gas, liquefied petroleum gas) that is used for Industrial Stoves is generally formed by managing in an outer tube and one, outer tube is used to into air, interior pipe is used to into combustion gas, outer tube does not have the air accelerating sections, what interior pipe flame adopted is the structure that directly sprays, therefore cause following many defectives: 1, high 2 air of air consumption import with certain speed once, through quickening, make burned flame soft and lack.3, the structure that directly jets out flames makes air and combustion gas mixing undesirable, and excess air coefficient is big, and fuel combustion is incomplete.4, burner front end thermal-flame direct and in the stove contacts, and easily by scorificationization, causes burner short service life.
Summary of the invention
The object of the present invention is to provide and a kind of combustion gas is fully burnt and the fuel burner nozzle that is used for Industrial Stoves of the long good rigidly of flame and use the air distributing method of this burner.
This fuel burner nozzle that is used for Industrial Stoves provided by the invention, comprise the outer tube that is used to air into, the interior pipe that is used to into combustion gas, described outer tube has at least the two-stage closing in to form two-stage accelerating region at least, the front portion of interior pipe is furnished with gas outlet in the side, be provided with a baffle plate at end face, make combustion gas and Air mixing form eddy current.
The front end of outer tube is the horn mouth on band burner lip limit.Be provided with the auxiliary air outlet on the tube wall of outer tube, in the outside of this auxiliary air outlet an outer cover that is used to cool off burner lip limit arranged, the opening of this outer cover is located at place, burner lip limit.
In order effectively to improve burner service life, prevent that burner lip limit from burning out, on the tube wall of outer tube, be provided with the auxiliary air outlet, in the outside of this auxiliary air outlet an outer cover that is used to cool off burner lip limit is arranged, the opening of this outer cover is located at place, burner lip limit.
Use the air distributing method of above-mentioned fuel burner nozzle to be: combustion gas mixes with the volume ratio of 1:9 with air.
The present invention can make right gas good mixing under the eddy current admixture, and flame is long, good rigidly, and combustion gas is fully burnt, the gas excess air coefficient is in 1.05, highly stable, than the saving combustion 30-50 cubic meter/ton of traditional burner, and burner long service life of the present invention.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
The present invention's fuel burner nozzle of being used for Industrial Stoves comprises outer tube 1, interior pipe 2 as can be seen from Figure 1, the front end of outer tube is provided with horn mouth 3, this horn mouth has burner lip limit 4, interior pipe 2 is in outer tube 1, outer tube 1 has at least two closing ins to make it to form corresponding accelerating region, outer tube 1 front end that has two closing ins to make it to have formed first accelerating region 11 and second accelerating region, 12, the second accelerating regions 12 is a horn mouth 3 burner lip limit 4 of ining succession in the present embodiment.It is 3 that the front portion of interior pipe 2 is evenly equipped with gas outlet 21(present embodiment at sidewall), be provided with a baffle plate 22 at end face, make combustion gas gas outlet 21 from the side arrive horn mouths 3 back and air mixing formation eddy current.The subtended angle of horn mouth 3 helps natural gas and air most and is the rotation of eddy current state and is fully mixed when being 60 °, and is fully burned, and is the streamline taper simultaneously and ejects forward; Make the rigidity of combustion flame reach optimum efficiency.Outer tube 1 is provided with on the tube wall of first accelerating region and is provided with 6 such auxiliary air outlets in the auxiliary air outlet 13(present embodiment, aperture 45mm), there is an outer cover 5 outside in this auxiliary air outlet, the opening of this outer cover is located at front end, be positioned at 4 places, burner lip limit, make through the air that once quickens and partly shunt, enter outer cover 5 from auxiliary air outlet 13, discharge from the front opening (being place, burner lip limit) of outer cover 5 then, with cooling burner lip limit 4, prevent that it from high temperature being burnt out, thereby is significantly improved the service life of whole burner.
When using, fuel burner nozzle of the present invention should notice that the volumetric mixture ratio of right gas and air is preferably 1:9.
The following example of the present invention on probation:
Natural gas is sentenced pressure 0.1Mpa, the ejection of flow velocity 10 meter per seconds at the gas outlet 21 of interior pipe 2, the pressure of air is 6000Pa, air is 11 meter per seconds quickening the back flow velocity through two-stage, mix with natural gas at horn mouth 3 places of outer tube and spray, the mixing ratio of natural gas volume and volume of air is 1:9.In mixed process, because the effect of baffle plate 22, and the effect of outer tube front end horn mouth 3, especially 60 ° of bell-mouthed effects, feasible natural gas that mixes herein and air are the rotation of eddy current state and are fully mixed, and be fully burned, be the streamline taper simultaneously and eject forward; Making the rigidity of combustion flame reach the optimum efficiency excess air coefficient is controlled in 1.05.Its consumption amount of natural gas is than the energy-conservation 30-50 cubic meter of traditional fuel burner nozzle/ton.Constantly burner lip limit is cooled off owing to the air after once quickening is diverted in the outer cover simultaneously, make burner of the present invention and traditional burner compare high life 3-5 times.
Claims (5)
1. fuel burner nozzle that is used for Industrial Stoves, comprise the interior pipe (2) that is used to the outer tube of air (1) into, is used to into combustion gas, it is characterized in that outer tube has at least two-stage to close up and forms two-stage accelerating region at least, the front portion of interior pipe (2) is furnished with gas outlet (21) in the side, be provided with a baffle plate (22) at end face, make combustion gas and Air mixing form eddy current.
2. the fuel burner nozzle that is used for Industrial Stoves according to claim 1, the front end that it is characterized in that outer tube are the horn mouths (3) on band burner lip limit (4).
3. the fuel burner nozzle that is used for Industrial Stoves according to claim 2, it is characterized in that on the tube wall of outer tube, being provided with auxiliary air outlet (13), there is an outer cover (5) that is used to cool off described burner lip limit outside in this auxiliary air outlet, and the opening of this outer cover is located at burner lip limit (4) and locates.
4. the fuel burner nozzle that is used for Industrial Stoves according to claim 2, the subtended angle that it is characterized in that described horn mouth (3) is 60 °.
5. an air distributing method that uses the described fuel burner nozzle of one of claim 1 to 4 is characterized in that combustion gas volume and volume of air ratio are that 1:9 mixes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010515524 CN101936531A (en) | 2010-10-22 | 2010-10-22 | Gas nozzle for industrial kiln and distribution method using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010515524 CN101936531A (en) | 2010-10-22 | 2010-10-22 | Gas nozzle for industrial kiln and distribution method using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101936531A true CN101936531A (en) | 2011-01-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010515524 Pending CN101936531A (en) | 2010-10-22 | 2010-10-22 | Gas nozzle for industrial kiln and distribution method using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101936531A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912875A (en) * | 2013-01-06 | 2014-07-09 | 梁燕龙 | Adjustable premixing type gas nozzle and method |
| CN106382626A (en) * | 2016-11-28 | 2017-02-08 | 无锡市莱达热工工程有限公司 | Hot gas burner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0777310A (en) * | 1993-09-08 | 1995-03-20 | Tokyo Gas Co Ltd | Low nitrogen oxide generating burner and burning method therefor |
| JPH08285225A (en) * | 1995-04-20 | 1996-11-01 | Tokyo Gas Co Ltd | Method and device for nitrogen oxide low generating combustion |
| CN2596203Y (en) * | 2002-01-12 | 2003-12-31 | 张国宝 | Flat flame burning nozzle |
| JP2005283006A (en) * | 2004-03-30 | 2005-10-13 | Osaka Gas Co Ltd | Luminous flame burner |
| JP2008202817A (en) * | 2007-02-16 | 2008-09-04 | Sunray Reinetsu Co Ltd | Gas burner |
-
2010
- 2010-10-22 CN CN 201010515524 patent/CN101936531A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0777310A (en) * | 1993-09-08 | 1995-03-20 | Tokyo Gas Co Ltd | Low nitrogen oxide generating burner and burning method therefor |
| JPH08285225A (en) * | 1995-04-20 | 1996-11-01 | Tokyo Gas Co Ltd | Method and device for nitrogen oxide low generating combustion |
| CN2596203Y (en) * | 2002-01-12 | 2003-12-31 | 张国宝 | Flat flame burning nozzle |
| JP2005283006A (en) * | 2004-03-30 | 2005-10-13 | Osaka Gas Co Ltd | Luminous flame burner |
| JP2008202817A (en) * | 2007-02-16 | 2008-09-04 | Sunray Reinetsu Co Ltd | Gas burner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912875A (en) * | 2013-01-06 | 2014-07-09 | 梁燕龙 | Adjustable premixing type gas nozzle and method |
| CN106382626A (en) * | 2016-11-28 | 2017-02-08 | 无锡市莱达热工工程有限公司 | Hot gas burner |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110105 |