CN209622787U - Burner - Google Patents
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- CN209622787U CN209622787U CN201920257891.7U CN201920257891U CN209622787U CN 209622787 U CN209622787 U CN 209622787U CN 201920257891 U CN201920257891 U CN 201920257891U CN 209622787 U CN209622787 U CN 209622787U
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- air
- combustion gas
- gas
- nozzle
- branch
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Abstract
The utility model discloses a kind of burners, comprising: gas pipeline passes through for combustion gas；Combustion gas branch comprising multiple, multiple combustion gas branches are formed in the end of gas pipeline, and each combustion gas branch has been respectively formed on gas nozzle；Air pipeline passes through for air；Air passage comprising multiple, multiple air passages are formed in the end of air pipeline, and each air passage has been respectively formed on air nozzle；Wherein: keeping the air nozzle on air passage adjacent with the gas nozzle of combustion gas branch road and burnt with air and combustion gas mixing.Air pipeline and gas pipeline is set to stretch out multiple branches, Bing Zhi opens up nozzle on road, and then increase the contact area of combustion gas and air, and then increase the combustion zone after combustion gas mixes with air, reduce ignition temperature, the oxygenation efficiency for thereby reducing nitrogen in air thereby reduces the production quantity of nitrogen oxides.
Description
Technical field
The utility model relates to technical field of heating more particularly to a kind of burners for heating for boiler.
Background technique
As economic growth and industrial expansion, energy consumption significantly improve, it is complete that atmosphere pollution increasingly becomes threat
The problem of ball, needs strict control pollutant emission especially in priority industry field.In order to reduce the discharge amount of NOx, at present
Existing method can be divided into two classes: first is that controlling the low NOx combusting technology of NOx generation amount in combustion process, another kind of is to reduce
The flue gas processing method of the NOx generated in flue gas.Latter class method is due to expensive, the low nitrogen combustion of primary study
Burning technology.
In boiler combustion process, the oxynitrides (NOx) generated in the burner can be divided into two major classes for combustion gas,
One kind is referred to as temperature mode NOx, is that the nitrogen in air is formed with oxygen at high temperature；It is another kind of to be referred to as fuel type NOx, it is in fuel
Nitrogen with oxygen at high temperature react formed, since the nitrogen content in combustion gas is less, gas fired-boiler reduce NOx emission mainly with control
Based on temperature mode NOx processed.
Prior art scenario: most of boilers reduce the confession of high-temperature region air capacity by reducing combustion zone flame temperature
It answers, high-temperature region combustion reaction is made to be in anaerobic condition, generate imperfect combustion, flue gas to low-temperature space secondary air distribution combustion again makes
Other substance combustions are complete, achieve the purpose that reduce discharged nitrous oxides.
Burner is that boiler provides the device of thermal energy, and fuel gas is ejected into furnace the temperature made in furnace by burner nozzle
Reach technique requirement.The fuel element air supply line of existing burner forms a nozzle and gas pipeline is formed by a spray
Mouth is arranged horizontally towards each other or communicates in combustion head, and combustion gas is sprayed from spray head, while air forms cyclone, combustion by helical structure
Gas lights use after mixing after nozzle ejection with cyclone, and major defect existing for this combustion system is: combustion gas and air
Contact area excessively concentrate, and then cause flame relatively concentrate, this makes the temperature in the region excessively high, and then leads to excessive nitrogen
Element (being present in air) is converted to nitrogen oxides (e.g., NOx), to pollute the environment.
Utility model content
For the above-mentioned technical problems in the prior art, the embodiments of the present invention provide a kind of burner.
In order to solve the above technical problems, the embodiments of the present invention the technical solution adopted is that:
A kind of burner, comprising:
Gas pipeline passes through for combustion gas；
Combustion gas branch comprising multiple, multiple combustion gas branches are formed in the end of the gas pipeline, each described
Combustion gas branch has been respectively formed on gas nozzle；
Air pipeline passes through for air；
Air passage comprising multiple, multiple air passages are formed in the end of the air pipeline, each described
Air passage has been respectively formed on air nozzle；Wherein:
Keep air nozzle on the air passage and the gas nozzle of combustion gas branch road adjacent with air and combustion gas
It is mixed and burned.
Preferably,
Multiple combustion gas branches are straight line branch；It multiple combustion gas leg parallels and is intervally arranged；
Multiple air passages are straight line branch；Multiple air passages are parallel and are intervally arranged；Wherein:
In multiple combustion gas branches and multiple air passage intervals inserted into each other.
Preferably,
Each combustion gas branch extends along direction and is placed with multiple gas nozzles；
Each air passage extends along direction and is placed with multiple air nozzles.
Preferably, the gas nozzle and the air nozzle be upward.
Preferably, the section of the combustion gas branch is round, ellipse or rectangular；The section of the air passage is circle
Shape, ellipse or rectangular.
Compared with prior art, the beneficial effect of the burner of the utility model is: making air pipeline and gas pipeline
Multiple branches are stretched out, nozzle is opened up on the road Bing Zhi, and then increase the contact area of combustion gas and air, and then increase combustion gas
Combustion zone after mixing with air, so that under conditions of heat identical as burner offer in the prior art, this is practical
The temperature of the combustion zone of the burner of novel offer will be lower than the ignition temperature of burner in the prior art, thereby reduce
The oxygenation efficiency of nitrogen in air, thereby reduces the production quantity of nitrogen oxides.
Detailed description of the invention
Fig. 1 is the top view of burner provided by the embodiments of the present invention.
Fig. 2 is the Section A-A view of Fig. 1.
In figure:
11- gas pipeline；12- combustion gas branch；13- gas nozzle；21- air pipeline；22- air passage；The spray of 23- air
Mouth.
Specific embodiment
It is with reference to the accompanying drawing and specific real to make those skilled in the art better understand the technical solution of the utility model
Mode is applied to elaborate to the utility model.
As depicted in figs. 1 and 2, the utility model discloses a kind of burner, which is set to the bottom of boiler, uses
It is heated in for boiler.The burner includes: gas pipeline 11, combustion gas branch 12, air pipeline 21 and air passage 22.Such as figure
Shown in 1, gas pipeline 11 for combustion gas for passing through, and for combustion gas branch 12 including multiple, multiple combustion gas branches 12 are shaped in combustion
The end of feed channel 11, and the endcapped of combustion gas branch 12 offer gas nozzle 13 on each combustion gas branch 12, this makes
It obtains and flows to combustion gas branch 12 by the combustion gas of gas pipeline 11, and pass through gas nozzle 13 and spray.Air pipeline 21 is for supplying
The air of certain flow rate passes through, air passage 22 include it is multiple, offer air nozzle 23 on multiple air passages 22, this makes
It obtains and flows to air passage 22 by the air of air pipeline 21, and pass through air nozzle 23 and spray.In the present invention, together
When keep combustion gas branch 12 and air passage 22 mutually close so that gas nozzle 13 is adjacent with air nozzle 23 so that from
The combustion gas that gas nozzle 13 sprays is mixed with the air sprayed from air nozzle 23 to burn.
The advantage of burner provided by above-described embodiment is: stretching out air pipeline 21 and gas pipeline 11 multiple
Branch opens up nozzle on the road Bing Zhi, and then increases the contact area of combustion gas and air, and then increases combustion gas and air is mixed
Combustion zone after conjunction, so that the utility model provides under conditions of heat identical as burner offer in the prior art
Burner combustion zone temperature will be lower than burner in the prior art ignition temperature, thereby reduce nitrogen in air
The oxygenation efficiency of element thereby reduces the production quantity of nitrogen oxides.
In a preferred embodiment of the utility model, multiple combustion gas branches 12 are straight line branch；It is multiple described
Combustion gas branch 12 is parallel and is intervally arranged；Multiple air passages 22 are straight line branch；Multiple air passages 22 are parallel
And it is intervally arranged；Wherein: in multiple combustion gas branches 12 and multiple air passages 22 interval inserted into each other.Namely
It says, gas pipeline 11 and combustion gas branch 12 and air pipeline 21 form finger intersected with each other with air passage 22, into
And the mixing uniformity of the combustion gas sprayed from gas nozzle 13 with the air sprayed from air nozzle 23 is improved, and then make to fire
The burning of gas is more abundant.
In a preferred embodiment of the utility model, each combustion gas branch 12 extend along direction be placed with it is more
A gas nozzle 13；Each air passage 22 extends along direction and is placed with multiple air nozzles 23.In the present embodiment,
Multiple nozzles are arranged in each branch, and then further improve the mixing uniformity of combustion gas and air, and then can make combustion gas
More fully burn.Preferably, the gas nozzle 13 and the air nozzle 23 be upward, that is, the furnace bottom of nozzle alignment boiler.
Preferably, the section of the combustion gas branch 12 is round, ellipse or rectangular；The section of the air passage 22
For round, oval or rectangular (attached drawing 2 illustratively shows a case that branch is round).
Above embodiments are only the exemplary embodiment of the utility model, are not used in limitation the utility model, this is practical new
The protection scope of type is defined by the claims.Those skilled in the art can be in the essence and protection scope of the utility model
It is interior, various modifications or equivalent replacements are made to the utility model, this modification or equivalent replacement also should be regarded as falling in originally practical new
In the protection scope of type.
Claims (5)
1. a kind of burner characterized by comprising
Gas pipeline passes through for combustion gas；
Combustion gas branch comprising multiple, multiple combustion gas branches are formed in the end of the gas pipeline, each combustion gas
Branch has been respectively formed on gas nozzle；
Air pipeline passes through for air；
Air passage comprising multiple, multiple air passages are formed in the end of the air pipeline, each air
Branch has been respectively formed on air nozzle；Wherein:
Keep air nozzle on the air passage and the gas nozzle of combustion gas branch road adjacent with air and combustion gas mixing
Burning.
2. burner according to claim 1, which is characterized in that
Multiple combustion gas branches are straight line branch；It multiple combustion gas leg parallels and is intervally arranged；
Multiple air passages are straight line branch；Multiple air passages are parallel and are intervally arranged；Wherein:
In multiple combustion gas branches and multiple air passage intervals inserted into each other.
3. burner according to claim 2, which is characterized in that
Each combustion gas branch extends along direction and is placed with multiple gas nozzles；
Each air passage extends along direction and is placed with multiple air nozzles.
4. burner according to claim 3, which is characterized in that the gas nozzle and the air nozzle are upward.
5. burner according to claim 2, which is characterized in that the section of the combustion gas branch be round, ellipse or
Person is rectangular；The section of the air passage is round, ellipse or rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920257891.7U CN209622787U (en) | 2019-02-28 | 2019-02-28 | Burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920257891.7U CN209622787U (en) | 2019-02-28 | 2019-02-28 | Burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209622787U true CN209622787U (en) | 2019-11-12 |
Family
ID=68455268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920257891.7U Active CN209622787U (en) | 2019-02-28 | 2019-02-28 | Burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209622787U (en) |
-
2019
- 2019-02-28 CN CN201920257891.7U patent/CN209622787U/en active Active
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