CN109323253A - One kind uniformly premixing low NOx gas burner - Google Patents
One kind uniformly premixing low NOx gas burner Download PDFInfo
- Publication number
- CN109323253A CN109323253A CN201811044181.2A CN201811044181A CN109323253A CN 109323253 A CN109323253 A CN 109323253A CN 201811044181 A CN201811044181 A CN 201811044181A CN 109323253 A CN109323253 A CN 109323253A
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- CN
- China
- Prior art keywords
- gas
- combustion
- circulation ring
- gun
- gas circulation
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- 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.)
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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
-
- 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
- F23D14/62—Mixing devices; Mixing tubes
- F23D14/64—Mixing devices; Mixing tubes with injectors
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses one kind uniformly to premix low NOx gas burner, by the way that gas circulation ring is arranged in the combustion chamber, fuel gas injection is carried out using the gas gun being distributed on gas circulation ring, combustion gas enters combustion chambers burn by several gas injection holes, the big flame combustion of combustion gas under the poly- state of script cluster is dispersed into uniform distribution flame combustion by multiple gas injection holes, the axle center of gas circulation ring is overlapped with the axle center of combustion chamber, gas gun is connected to gas circulation ring and the axis of gas gun is parallel with burning chamber axis, it ensure that combustion gas is evenly dispersed by gas circulation ring, originally compact whole group's shape combustion zone is effectively divided into evenly dispersed combustion zone, avoid amount of localized heat aggregation in combustion zone caused by burning is assembled, temperature is excessively high, thermal NO x is inhibited to generate, combustion gas is avoided from gas injection Rifle end directly sprays, and keeps the gas injection hole outlet on gas gun uniform, guarantees that burning is abundant.Present apparatus structure is simple and convenient and energy saving.
Description
Technical field
The invention belongs to Thermal Energy and Power Engineering technical fields；It is related to a kind of gas burner, and in particular to a kind of uniform
Premix low NOx gas burner.
Background technique
The fuel gas such as natural gas are poly- due to combustion flame cluster in combustion, and burning acutely, causes combustion zone local
Temperature is excessively high, and the nitrogen in combustion zone is easily oxidized at high temperature generates a large amount of thermal NO x.NOx not only easily causes acid
The atmospheric environments problems such as rain, city photochemical fog, and NOx can with form fine particle in conjunction with other pollutants in atmosphere,
Cause severe haze weather.Therefore, it is uniformly mixed and burned, is reduced in gas combustion process with air by rationalization's combustion gas
Combustion zone local temperature, avoids the appearance of local high temperature zone, to inhibit the generation of thermal NO x, can effectively realize combustion gas
Low NOx clean burning.
Summary of the invention
The purpose of the present invention is to provide one kind uniformly to premix low NOx gas burner；The present apparatus can be avoided gas combustion
Combustion zone local temperature is excessively high caused by material aggregation burning, by realizing combustion gas and the premixed combustion of air uniform depth and combustion
It makes a fire the super evenly dispersed distribution of flame, the appearance of combustion zone localized hyperthermia is avoided, to inhibit the formation of thermal NO x.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
One kind uniformly premixes low NOx gas burner, including air flow channel, combustion chamber, combustion gas tracheae, gas circulation ring and
Gas gun；Air flow channel and combustion chamber, combustion gas tracheae are connected to gas circulation ring, and gas circulation ring is set to combustion chamber
Interior, gas circulation ring is annular shape, and the axle center of gas circulation ring is overlapped with the axle center of combustion chamber；Gas gun and gas circulation ring
The axis of connection and gas gun is parallel with burning chamber axis, and multiple gas guns, gas injection are uniformly provided on gas circulation ring
Rifle is equipped with gas injection hole.
Further, the section of gas circulation ring is circle.
Further, air flow channel is 90 ° of bend pipes.
Further, combustion chamber is cylindric；Gas station supplier is connected at combustion gas air pipe inlet, tail portion connects gas circulation
Ring fuel gas inlet.
Further, gas circulation ring outer annular diameter d2 is the 0.8~0.9 of combustion chamber internal diameter D, and gas circulation ring inner ring is straight
Diameter d1 is the 0.8~0.9 of gas circulation ring (4) outer annular diameter d2.
Further, one end of gas gun connect with gas circulation loop wall and be connected in gas circulation ring, combustion gas
The other end of spray gun protrudes into combustion chamber in parallel.
Further, gas gun is J-type, and longer section of gas gun J-type is parallel to burning chamber axis and is set to combustion gas stream
In logical ring annulus.
Further, gas gun tail portion is hemispherical, and several gas injection holes are provided on hemisphere；Gas injection hole setting
In on longer section of gas gun J-type, gas injection hole is at least combustion gas stream in the projector distance of gas gun with gas circulation ring
0.1 times of logical ring outer annular diameter d2.
Further, 4~9 gas guns are distributed in gas circulation ring even circumferential.
Further, gas gun cross section is circle, the internal diameter d3 of gas gun be gas circulation endless tube diameter 0.2~
0.4。
Compared with prior art, the invention has the following beneficial technical effects:
One kind of the invention uniformly premixes low NOx gas burner, by the way that gas circulation ring is arranged in the combustion chamber, using equal
The gas gun being distributed on gas circulation ring carries out fuel gas injection, and combustion gas enters combustion chambers burn by several gas injection holes,
The big flame combustion of combustion gas under the poly- state of script cluster is dispersed into uniform distribution flame combustion by multiple gas injection holes,
The axle center of gas circulation ring is overlapped with the axle center of combustion chamber, gas gun be connected to gas circulation ring and the axis of gas gun with
The chamber axis that burns is parallel, ensure that combustion gas is evenly dispersed by gas circulation ring, effectively originally compact whole group's shape is burnt
Regional Differentiation be evenly dispersed combustion zone, avoid burning assemble caused by combustion zone amount of localized heat aggregation, temperature it is excessively high,
Thermal NO x is inhibited to generate.
Further, gas gun tail portion is hemispherical, and several gas injection holes are provided on hemisphere, avoids combustion gas from combustion
Gas spray gun end directly sprays, and keeps the gas injection hole outlet on gas gun uniform, guarantees that burning is abundant.
Further, 4~9 gas guns are distributed in gas circulation ring even circumferential, and combustion gas is enable to be dispersed in burning
Indoor carry out full combustion.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is structural upright cross-sectional view in combustion chamber of the invention；
In figure: 1 is air flow channel；2 be combustion chamber；3 be combustion gas tracheae；4 be gas circulation ring；5 be gas gun；6 are
Gas injection hole.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
One kind of the invention uniformly premixes low NOx gas burner, as shown in Figure 1 and Figure 2, including air flow channel 1, combustion chamber
2, combustion gas tracheae 3, gas circulation ring 4, gas gun 5 and gas injection hole 6；Air flow channel 1 is connected to combustion chamber 2, combustion gas stream
Logical ring 4 is set in combustion chamber 2, and combustion gas tracheae 3 is connected to gas circulation ring 4, and gas circulation ring 4 is annular shape, gas circulation
The axle center of ring 4 is overlapped with the axle center of combustion chamber 2；Gas gun 5 is connected to gas circulation ring 4 and the axis of gas gun 5 and combustion
It is parallel to burn 2 axis of room, multiple gas guns 5 are uniformly provided on gas circulation ring 4, gas gun 5 is equipped with multiple fuel gas injections
Hole 6；
The section of gas circulation ring 4 is circle；Air flow channel 1 is 90 ° of bend pipes, and air is passed through from 1 entrance of air flow channel, is passed through
Enter in combustion chamber 2 after crossing 90 ° of bending turnovers；Combustion chamber 2 is cylindric, internal diameter D；The connection combustion of 3 inlet of combustion gas tracheae
Gas, tail portion connect gas circulation ring 4；4 outer annular diameter d2 of gas circulation ring and 2 internal diameter D ratio of combustion chamber are 0.8~0.9, combustion gas
Circulation 4 annular diameters d1 of ring and outer annular diameter d2 ratio are 0.8~0.9；5 appearance of gas gun be in J-type, the one of gas gun 5
End connect with 4 tube wall of gas circulation ring and be connected in gas circulation ring 4, the other end of gas gun 5 protrudes into combustion chamber 2 in parallel
It is interior；For 5 cross section of gas gun to be round, the ratio of internal diameter d3 and (d2-d1) are 0.4~0.8；5 sum of gas gun is 4~9
It is a, it is distributed along 4 even circumferential of gas circulation ring, guarantee enables combustion gas to disperse to carry out full combustion in the combustion chamber.
Several gas injection holes 6, gas injection hole are uniformly opened up in the combustion chamber parallel-segment limit length of gas gun 5
6 initial positions opened up and projector distance of the gas circulation ring 4 on gas gun 5 are 0.1*d2；5 tail portion of gas gun is in half
It is spherical, several gas injection holes 6 are provided on hemisphere；The center of circle spacing of adjacent gas injection hole 6 is with d3 ratio on gas gun 5
0.1~0.2；The bore dia of each gas injection hole 6 is identical, 1~3mm of value range.Gas gun tail portion is hemispherical, hemisphere
On be provided with several gas injection holes, avoid combustion gas and directly sprayed from gas gun end, make the fuel gas injection on gas gun
Hole outlet is uniform, guarantees that burning is abundant.
The course of work of the invention is:
Combustion gas enters gas circulation ring 4 through combustion gas tracheae 3, is then dispersed among each branch gas gun 5；Combustion gas is being fired
Enter in combustion chamber 2 in the process of circulation through all a gas injection holes 6 in gas spray gun 5 and burns；Air needed for burning is by air flow channel 1
It is passed through, enters after 90 ° of bendings and participate in burning in combustion chamber 2.
The working principle of the invention is: combustion gas enters combustion chambers burn, single fuel gas injection by several gas injection holes
The fuel gas injection amount in hole is in controlled range, is thus dispersed into the big flame combustion of combustion gas under the poly- state of script cluster and is uniformly divided
Originally compact whole group's shape combustion zone is effectively divided into evenly dispersed combustion zone, avoided by cloth state flame combustion
The aggregation of combustion zone amount of localized heat caused by burning is assembled, temperature are excessively high, and thermal NO x is inhibited to generate.
Claims (10)
1. one kind uniformly premixes low NOx gas burner, which is characterized in that including air flow channel (1), combustion chamber (2), combustion gas gas
Manage (3), gas circulation ring (4) and gas gun (5)；Air flow channel (1) is connected to combustion chamber (2), combustion gas tracheae (3) and combustion gas
Circulation ring (4) connection, gas circulation ring (4) are set in combustion chamber (2), and gas circulation ring (4) is annular shape, gas circulation ring
(4) axle center is overlapped with the axle center of combustion chamber (2)；Gas gun (5) is connected to gas circulation ring (4) and gas gun (5)
Axis is parallel with combustion chamber (2) axis, is uniformly provided on gas circulation ring (4) multiple gas guns (5), on gas gun (5)
Equipped with gas injection hole (6).
2. one kind according to claim 1 uniformly premixes low NOx gas burner, which is characterized in that gas circulation ring (4)
Section be circle.
3. one kind according to claim 1 uniformly premixes low NOx gas burner, which is characterized in that air flow channel (1) is
90 ° of bend pipes.
4. one kind according to claim 1 uniformly premixes low NOx gas burner, which is characterized in that combustion chamber (2) are circle
Column；Combustion gas tracheae (3) inlet connects gas station supplier, and tail portion connects gas circulation ring (4) fuel gas inlet.
5. one kind according to claim 1 uniformly premixes low NOx gas burner, which is characterized in that gas circulation ring (4)
Outer annular diameter d2 be combustion chamber (2) internal diameter D 0.8~0.9, gas circulation ring (4) annular diameters d1 be gas circulation ring (4) outside
The 0.8~0.9 of ring diameter d2.
6. one kind according to claim 1 uniformly premixes low NOx gas burner, which is characterized in that gas gun (5)
One end connect with gas circulation ring (4) tube wall and with gas circulation ring (4) in be connected to, the other end of gas gun (5) is stretched in parallel
Enter in combustion chamber (2).
7. one kind according to claim 6 uniformly premixes low NOx gas burner, which is characterized in that gas gun (5) is
J-type, longer section of J-type of gas gun (5) are parallel to combustion chamber (2) axis and are set in gas circulation ring (4) annulus.
8. one kind according to claim 1 uniformly premixes low NOx gas burner, which is characterized in that gas gun (5) tail
Portion is hemispherical, and several gas injection holes (6) are provided on hemisphere；It is longer that gas injection hole (6) is set to gas gun (5) J-type
Duan Shang, gas injection hole (6) are at least gas circulation ring (4) outside in the projector distance of gas gun (5) with gas circulation ring (4)
0.1 times of ring diameter d2.
9. one kind according to claim 1 uniformly premixes low NOx gas burner, which is characterized in that gas circulation ring (4)
4~9 gas guns (5) are distributed in even circumferential.
10. one kind according to claim 1 uniformly premixes low NOx gas burner, which is characterized in that gas gun (5)
Cross section is circle, and the internal diameter d3 of gas gun (5) is the 0.2~0.4 of gas circulation ring (4) caliber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811044181.2A CN109323253A (en) | 2018-09-07 | 2018-09-07 | One kind uniformly premixing low NOx gas burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811044181.2A CN109323253A (en) | 2018-09-07 | 2018-09-07 | One kind uniformly premixing low NOx gas burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109323253A true CN109323253A (en) | 2019-02-12 |
Family
ID=65264807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811044181.2A Pending CN109323253A (en) | 2018-09-07 | 2018-09-07 | One kind uniformly premixing low NOx gas burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109323253A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013973A (en) * | 2022-06-02 | 2022-09-06 | 西安交通大学 | Full premix water-cooling gas boiler |
| WO2023035050A1 (en) * | 2021-09-09 | 2023-03-16 | Fct Holdings Pty Ltd | Low nox emission burner and operating method for reducing nox formation applied to an iron ore pellet sintering and/or hardening method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0751343A1 (en) * | 1995-06-26 | 1997-01-02 | Selas Corporation of America | Method and apparatus for reducing NOx emissions in a gas burner |
| CN1675501A (en) * | 2002-08-09 | 2005-09-28 | 杰富意钢铁株式会社 | Tubular flame burner and method for controlling combustion |
| CN202675297U (en) * | 2012-07-10 | 2013-01-16 | 浙江日盛实业有限公司 | Natural gas spray gun |
| CN204922976U (en) * | 2015-08-18 | 2015-12-30 | 庞华荣 | Go up bull furnace end of air inlet |
| CN106642114A (en) * | 2016-11-15 | 2017-05-10 | 西安西热锅炉环保工程有限公司 | Ultra-low-nitrogen gas combustor with gun head self-combustion-stabilization devices |
| CN206347568U (en) * | 2016-12-02 | 2017-07-21 | 海湾环境科技（北京）股份有限公司 | Burner |
| CN207122899U (en) * | 2017-08-31 | 2018-03-20 | 岳阳恒盛石化科技有限公司 | A kind of low NOx gas burners of Flat flame |
-
2018
- 2018-09-07 CN CN201811044181.2A patent/CN109323253A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0751343A1 (en) * | 1995-06-26 | 1997-01-02 | Selas Corporation of America | Method and apparatus for reducing NOx emissions in a gas burner |
| CN1675501A (en) * | 2002-08-09 | 2005-09-28 | 杰富意钢铁株式会社 | Tubular flame burner and method for controlling combustion |
| CN202675297U (en) * | 2012-07-10 | 2013-01-16 | 浙江日盛实业有限公司 | Natural gas spray gun |
| CN204922976U (en) * | 2015-08-18 | 2015-12-30 | 庞华荣 | Go up bull furnace end of air inlet |
| CN106642114A (en) * | 2016-11-15 | 2017-05-10 | 西安西热锅炉环保工程有限公司 | Ultra-low-nitrogen gas combustor with gun head self-combustion-stabilization devices |
| CN206347568U (en) * | 2016-12-02 | 2017-07-21 | 海湾环境科技（北京）股份有限公司 | Burner |
| CN207122899U (en) * | 2017-08-31 | 2018-03-20 | 岳阳恒盛石化科技有限公司 | A kind of low NOx gas burners of Flat flame |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023035050A1 (en) * | 2021-09-09 | 2023-03-16 | Fct Holdings Pty Ltd | Low nox emission burner and operating method for reducing nox formation applied to an iron ore pellet sintering and/or hardening method |
| CN115013973A (en) * | 2022-06-02 | 2022-09-06 | 西安交通大学 | Full premix water-cooling gas boiler |
| CN115013973B (en) * | 2022-06-02 | 2023-10-24 | 西安交通大学 | Full premix water-cooling gas boiler |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190212 |
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| RJ01 | Rejection of invention patent application after publication |