CN206112907U - Gas industrial boiler burner - Google Patents
Gas industrial boiler burner Download PDFInfo
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- CN206112907U CN206112907U CN201621070810.5U CN201621070810U CN206112907U CN 206112907 U CN206112907 U CN 206112907U CN 201621070810 U CN201621070810 U CN 201621070810U CN 206112907 U CN206112907 U CN 206112907U
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- gas
- aditus laryngis
- pipette tips
- outside
- gun
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Abstract
The utility model relates to a gas industrial boiler burner and gas hierarchy configuration method, the technical problem that solve is the effluent concentration who effectively reduces NOx. Belong to industrial boiler burner technical field. Its characterized in that: the outside or the interior side of aditus laryngis have a plurality of external -burning air guns, and the syntropy is bordered on fixedly, the rifle head of external -burning air gun sets up the outside of aditus laryngis in furnace, and a plurality of gas spouts towards furnace are put to the terminal surface of external -burning air gun rifle head. 90%~10% of the required gas of boiler volume is spouted into furnace by the combustor, the surplus by a plurality of external -burning air guns towards furnace's spout into. Actively the effect is: gas during the operation in the combustor is lighted earlier, the external -burning air gun that ignites spout into the gas, make the gas burn in whole furnace in the big as far as possible space, reduced flame average temperature and peak temperature to form several flue gas inner loop and flow back under the effect of aditus laryngis, diluted the furnace oxygen content, thereby make the NOx who produces measure seldom, be less than 30mgNm3, and there is not the CO production.
Description
Technical field
The utility model is related to a kind of gas industry boiler combustion device of ultra-low emission of NOx and its combustion gas hierarchical arrangement side
Method, the flame of generation can be matched with various boiler furnaces, belong to combustion of industrial boiler engineering device technique field.
Background technology
As environmental problem is increasingly projected, country requires boiler Air Pollutant Emission limit value increasingly stricter, north
DB11/139-2015 is promulgated within 2015 in capital city《Emission standard of air pollutants for boilers》, it is desirable to it is new after 1 day April in 2017
Build gas fired-boiler NOx emission and be reduced to 30mg/Nm3Below.By the way of afterbody denitration SCR or SNCR, though 30mg/ can be realized
Nm3Qualified discharge, but it is cost that it needs expensive up-front investment and operating cost.By low nitrogen burning mode, as far as possible
The concentration of emission of boiler furnace outlet NOx is reduced, it plays huge energy-saving and emission-reduction effect.
Diffusion combustion being adopted traditional gas burner, i.e., non-premixed combustion, fuel carries out grade separation in burner more
Put, be extremely difficult to 30 mg/Nm3Minimum discharge.New combustion gas hierarchical arrangement method need to be sought, flame is reduced as far as possible average
Temperature and peak temperature, to reduce the generation of thermal NO x, realize ultralow nitrogen discharged.
The content of the invention
The purpose of this utility model is：The gas industry boiler and its combustion gas hierarchical arrangement of a kind of ultra-low emission of NOx are provided
Method, makes Industrial Boiler Flame as far as possible full of furnace cavity, reduces flame mean temperature and peak temperature, and forms flue gas
Interior circulation, effectively reduces the initial ejection concentration of NOx.
The technical solution of the utility model is：A kind of gas industry boiler combustion device, including boiler setting, aditus laryngis, combustion
Burner and outer gas gun, the boiler setting, aditus laryngis, burner are coaxially disposed from outside to inside successively, it is characterised in that：The larynx
The outside/or inner side of mouth is equipped with multiple outer gas guns, and adjacent fixation in the same direction；The pipette tips of the outer gas gun are arranged on stove
The outside of the aditus laryngis in thorax, the end face of the external combustion gas gun header is equipped with multiple combustion gas spouts towards burner hearth.
The outer gas gun is placed in the outside of the aditus laryngis, and the peripheral refractory brick course by the aditus laryngis is adjacent solid in the same direction
Fixed, the pipette tips of the outer gas gun expose stretches out refractory brick course, is placed in the outside of aditus laryngis in the burner hearth.
The outer gas gun body of a gun is L-shaped, and the long side of L-type is arranged on aditus laryngis inner side burner region, with the larynx
Adjacent in the same direction on the inside of mouthful to fix, minor face is parallel with the aditus laryngis end face to be radially arranged, and the end of the minor face is the outer combustion gas
The pipette tips of rifle, are placed in the outside of the aditus laryngis.
To between the inner of the boiler chamber wall, axial symmetry arranges the outer of multiple different radiis to the outer side edges of aditus laryngis in the burner hearth
The pipette tips of gas gun install loop wire, and each pipette tips installs the pipette tips that loop wire arranges multiple outer gas guns.
The combustion gas hierarchical arrangement method of the gas industry boiler combustion device, it is characterised in that：Gas quantity needed for boiler
90%～10% by the burner spray into burner hearth, surplus by multiple outer gas guns towards burner hearth spout spray into burner hearth.
Good effect of the present utility model is：During work operation, the combustion gas in burner is first ignited burning, and burning is produced
High temperature mixed flue gas diffuse to the periphery of burner, the combustion gas that the outer gas gun spout that ignites is sprayed into enables combustion gas in whole stove
Burnt in space as big as possible in thorax, reduced flame mean temperature and peak temperature, and the shape in the presence of aditus laryngis
Into several flue gas inner circulating refluxes, burner hearth oxygen content is diluted, reduce the discharge of NOx.So that the NOx amount pole for producing
It is few, less than 30mg/Nm3, and produce without CO.
Description of the drawings
Below in conjunction with the accompanying drawings the utility model is described in further detail with embodiment for explanation.
Fig. 1 is the outside that outer gas gun is placed in aditus laryngis, and by refractory brick course fixed structure schematic diagram is adjoined in the same direction：（Install
1 layer of loop wire）；
Fig. 2 is the A of Fig. 1 to structural representation：
Fig. 3 is the outside that outer gas gun is placed in aditus laryngis, and by refractory brick course fixed structure schematic diagram is adjoined in the same direction：（Install
2 layers of loop wire）；
Fig. 4 is the A of Fig. 3 to structural representation：
Fig. 5 is that outer gas gun is L-shaped, and the long side of L-type is arranged on the aditus laryngis inner side, minor face and aditus laryngis end face parallel alley
To setting, the pipette tips of gas gun are placed in the outboard structure schematic diagram of aditus laryngis；
Fig. 6 is the A of Fig. 5 to structure.
In figure：1-burner：2-aditus laryngis：3-outer gas gun：4-boiler setting refractory brick course；5-outer gas gun
Pipette tips；6-pipette tips install loop wire；7-inner of the boiler chamber wall.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is described in further detail with specific embodiment for explanation.
Fig. 1～Fig. 6 is the utility model structural representation, from diagram, a kind of gas industry boiler combustion device, bag
Boiler setting 4, aditus laryngis 2, burner 1 and outer gas gun 3 are included, the boiler setting 4, aditus laryngis 2, burner 1 are successively from outside to inside
It is coaxially disposed, it is characterised in that：The outside of the aditus laryngis 2（Fig. 1～Fig. 4）/ or inner side（Fig. 5～Fig. 6）It is equipped with multiple described outer
Gas gun 3, and it is fixed in the same direction；The pipette tips 5 of the outer gas gun 3 are arranged on the outside of the aditus laryngis 2 in burner hearth, the outer combustion gas
The end face of the pipette tips 5 of rifle 3 is equipped with multiple combustion gas spouts towards burner hearth.
To between the inner of the boiler chamber wall 7, axial symmetry arranges several different radiis to the outer side edges of aditus laryngis 2 in the burner hearth
Outer gas gun pipette tips install loop wire 6（Such as 1～6 layer）, the rifle of each multiple outer gas gun 3 of pipette tips installation loop wire setting
5.Pipette tips install loop wire 6 and can on demand arrange 1～6 layer, 1 layer of Fig. 1, Fig. 2 pipette tips installation loop wire 6 setting in embodiment, Fig. 3,
Fig. 4 pipette tips install loop wire 6 and arrange 2 layers；Installing loop wire 6 for each layer can on demand arrange 2～40 pipette tips 5, Fig. 3 of outer gas gun 3
Middle outer layer mounting ring line 6 lays 15 pipette tips 5, and internal layer installs loop wire 6 and arranges 10 pipette tips 5.
The gas industry boiler combustion device and its combustion gas hierarchical arrangement method, it is characterised in that：Combustion gas needed for boiler
The 90%～10% of amount sprays into burner hearth by the burner, and surplus sprays into stove by multiple outer gas guns towards the spout of burner hearth
Thorax.
So that one group of external combustion air-gun arrangement is in the inner side burner region of aditus laryngis 2 as an example, outer gas gun 3 can adopt L-type rifle to Fig. 5
Body, by L-type rifle, the pipette tips 5 of outer gas gun 3 are located at the periphery of aditus laryngis 2, fuel are delivered to the periphery of aditus laryngis 2, by external combustion
Spray orifice on the end face of 3 pipette tips of air gun 5 is projected and burnt to burner hearth, and with this coverage of fuel is expanded, and reduces combustion zone
The central temperature in domain, reduces the generation of NOx.The outer gas gun 3 of this kind of arrangement need to adopt resistant to elevated temperatures material, such as 2520 stainless steels
Make.
During work, the combustion gas in burner 1 is first ignited burning, and the high temperature mixed flue gas for producing that burn diffuse to burner
1 periphery, the combustion gas that 3 pipette tips of outer gas gun 5 of igniting spray, enables to be carried out in as the big as possible space in whole burner hearth of combustion gas
Burning, reduces flame mean temperature and peak temperature, and several smoke backflows are formed in the presence of aditus laryngis 2, dilutes stove
Thorax oxygen content, reduces the discharge of NOx.
In the end face of the pipette tips 5 of outer gas gun 3, be equipped with multiple combustion gas spouts, end face towards burner hearth, the pipette tips 5 of outer gas gun 3
Spout is located at the periphery of aditus laryngis, and the flame that the combustion gas ejected is produced with the air in aditus laryngis out and burner mixes combustion
Burn.The setting of outer gas gun, reduces the gas quantity of burner region, increases the distributed areas of gaseous fuel, increased fire
Degree of filling of the flame in burner hearth, reduces flame mean temperature and peak temperature, reduces the production of thermal NO x, effectively drop
The low concentration of emission of NOx.
Claims (4)
1. a kind of gas industry boiler combustion device, including boiler setting, aditus laryngis, burner and outer gas gun, the Boiler Furnace
Wall, aditus laryngis, burner are coaxially disposed from outside to inside successively, it is characterised in that：The outside/or inner side of the aditus laryngis is equipped with multiple institutes
State outer gas gun, and adjacent fixation in the same direction；The pipette tips of the outer gas gun are arranged on the outside of the aditus laryngis in burner hearth, described outer
The end face of gas gun pipette tips is equipped with multiple combustion gas spouts towards burner hearth.
2. gas industry boiler combustion device according to claim 1, it is characterised in that：The outer gas gun is placed in the larynx
The outside of mouth, is adjoined in the same direction by the peripheral refractory brick course of the aditus laryngis and is fixed, and the pipette tips of the outer gas gun expose stretches out resistance to
Firebrick course, is placed in the outside of aditus laryngis in the burner hearth.
3. gas industry boiler combustion device according to claim 1, it is characterised in that：The outer gas gun body of a gun is L-shaped,
The long side of L-type is arranged on aditus laryngis inner side burner region, with the adjacent fixation in the same direction of aditus laryngis inner side, minor face and the larynx
Mouthful end face is parallel is radially arranged, and the end of the minor face is the pipette tips of the outer gas gun, is placed in the outside of the aditus laryngis.
4. gas industry boiler combustion device according to claim 1, it is characterised in that：The outer side edges of aditus laryngis in the burner hearth
To between the inner of the boiler chamber wall, axial symmetry arranges the pipette tips of the outer gas gun of multiple different radiis and installs loop wire, each pipette tips
The pipette tips that loop wire lays multiple outer gas guns are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621070810.5U CN206112907U (en) | 2016-09-22 | 2016-09-22 | Gas industrial boiler burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621070810.5U CN206112907U (en) | 2016-09-22 | 2016-09-22 | Gas industrial boiler burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206112907U true CN206112907U (en) | 2017-04-19 |
Family
ID=58520730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621070810.5U Active CN206112907U (en) | 2016-09-22 | 2016-09-22 | Gas industrial boiler burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206112907U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247319A (en) * | 2016-09-22 | 2016-12-21 | 上海华之邦科技股份有限公司 | A kind of gas industry boiler combustion device and combustion gas hierarchical arrangement method thereof |
| CN108591996A (en) * | 2018-07-06 | 2018-09-28 | 上海华之邦科技股份有限公司 | Burnout degree setting method and the boiler using burnout degree technology in a kind of stove |
| CN108662576A (en) * | 2018-06-13 | 2018-10-16 | 上海华之邦科技股份有限公司 | A kind of automatic internal-circulation type low nitrogen burning system of flue gas |
| CN111336496A (en) * | 2020-01-08 | 2020-06-26 | 宣化钢铁集团有限责任公司 | Biomass boiler safety combustion device |
-
2016
- 2016-09-22 CN CN201621070810.5U patent/CN206112907U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247319A (en) * | 2016-09-22 | 2016-12-21 | 上海华之邦科技股份有限公司 | A kind of gas industry boiler combustion device and combustion gas hierarchical arrangement method thereof |
| CN108662576A (en) * | 2018-06-13 | 2018-10-16 | 上海华之邦科技股份有限公司 | A kind of automatic internal-circulation type low nitrogen burning system of flue gas |
| CN108591996A (en) * | 2018-07-06 | 2018-09-28 | 上海华之邦科技股份有限公司 | Burnout degree setting method and the boiler using burnout degree technology in a kind of stove |
| CN111336496A (en) * | 2020-01-08 | 2020-06-26 | 宣化钢铁集团有限责任公司 | Biomass boiler safety combustion device |
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