CN106247319A - A kind of gas industry boiler combustion device and combustion gas hierarchical arrangement method thereof - Google Patents
A kind of gas industry boiler combustion device and combustion gas hierarchical arrangement method thereof Download PDFInfo
- Publication number
- CN106247319A CN106247319A CN201610840312.2A CN201610840312A CN106247319A CN 106247319 A CN106247319 A CN 106247319A CN 201610840312 A CN201610840312 A CN 201610840312A CN 106247319 A CN106247319 A CN 106247319A
- Authority
- CN
- China
- Prior art keywords
- gas
- aditus laryngis
- burner hearth
- burner
- gun
- 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
- 239000007789 gas Substances 0.000 title claims abstract description 66
- 239000000567 combustion gas Substances 0.000 title claims abstract description 29
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000011449 brick Substances 0.000 claims description 6
- 210000000867 larynx Anatomy 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003546 flue gas Substances 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 239000007921 spray Substances 0.000 abstract description 3
- 238000010992 reflux Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 239000000809 air pollutant Substances 0.000 description 2
- 231100001243 air pollutant Toxicity 0.000 description 2
- 210000000038 chest Anatomy 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
- F23C5/08—Disposition of burners
- F23C5/24—Disposition of burners to obtain a loop flame
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/06—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for completing combustion
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The present invention relates to a kind of gas industry boiler combustion device and combustion gas hierarchical arrangement method thereof, the concentration of emission being effectively reduce NOx will be solved the technical problem that.Belong to combustion of industrial boiler device technique field.It is characterized in that: the outside/of aditus laryngis or inner side are equipped with multiple outer gas gun, and adjacent in the same direction fixing；The rifle head of outer gas gun is arranged on the outside of aditus laryngis in burner hearth, and the end face of external combustion gas gun header is equipped with multiple combustion gas spout towards burner hearth.Needed for boiler, 90%～the 10% of gas quantity is sprayed into burner hearth by burner, and surplus is sprayed into towards the spout of burner hearth by multiple outer gas guns.Good effect is: during operation, the combustion gas in burner is first ignited, the combustion gas that the outer gas gun that ignites sprays into, make to burn in the space that combustion gas is the biggest in whole burner hearth, reduce flame mean temperature and peak temperature, and under the effect of aditus laryngis, form several flue gas inner circulating reflux, dilute burner hearth oxygen content, so that the NOx amount produced is few, less than 30mg/Nm3, and produce without CO.
Description
Technical field
The present invention relates to a kind of gas industry boiler combustion device and the combustion gas hierarchical arrangement method thereof of ultra-low emission of NOx,
The flame produced can mate with various boiler furnaces, belongs to combustion of industrial boiler device technique field.
Background technology
Along with environmental problem is more and more prominent, boiler Air Pollutant Emission limit value is required increasingly stricter by country, north
Capital city has promulgated DB11/139-2015 " emission standard of air pollutants for boilers " for 2015, it is desirable to new after 1 day April in 2017
Build gas fired-boiler NOx emission and be reduced to 30mg/Nm3Below.Use the mode of afterbody denitration SCR or SNCR, though 30mg/ can be realized
Nm3Qualified discharge, but it needs expensive up-front investment and operating cost to be cost.By low nitrogen burning mode, as far as possible
Reducing the concentration of emission of boiler furnace outlet NOx, it plays huge energy-saving and emission-reduction effect.
Traditional gas burner many employings diffusion combustion, the most non-premixed combustion, fuel carries out grade separation in burner
Put, be extremely difficult to 30 mg/Nm3Minimum discharge.New combustion gas hierarchical arrangement method need to be sought, reduce flame as far as possible average
Temperature and peak temperature, to reduce the generation of thermal NO x, it is achieved ultralow nitrogen discharged.
Summary of the invention
It is an object of the invention to: gas industry boiler and the combustion gas hierarchical arrangement method thereof of a kind of ultra-low emission of NOx are provided,
Make Industrial Boiler Flame be full of furnace cavity as far as possible, reduce flame mean temperature and peak temperature, and follow in forming flue gas
Ring, effectively reduces the initial ejection concentration of NOx.
The technical scheme is that a kind of gas industry boiler combustion device, including boiler setting, aditus laryngis, burner
With outer gas gun, described boiler setting, aditus laryngis, burner are coaxially disposed the most from outside to inside, it is characterised in that: described aditus laryngis
Outside/or inner side are equipped with multiple described outer gas gun, and adjacent in the same direction fixing；The rifle head of described outer gas gun is arranged in burner hearth
The outside of described aditus laryngis, the end face of described external combustion gas gun header is equipped with multiple combustion gas spout towards burner hearth.
Described outer gas gun is placed in the outside of described aditus laryngis, adjacent in the same direction solid by the peripheral refractory brick course of described aditus laryngis
Fixed, the rifle head of described outer gas gun exposes and stretches out refractory brick course, is placed in the outside of aditus laryngis in described burner hearth.
The described outer gas gun body of a gun is L-shaped, and the long limit of L-type is arranged on burner region inside described aditus laryngis, with described larynx
Adjoining fixing inside Kou in the same direction, minor face is parallel with described aditus laryngis end face to be radially arranged, and the end of described minor face is described outer combustion gas
The rifle head of rifle, is placed in the outside of described aditus laryngis.
In described burner hearth, the outer side edges of aditus laryngis is between described inner of the boiler chamber wall, and axial symmetry is arranged outside multiple different radii
The rifle head of gas gun installs loop wire, and each rifle head is installed loop wire and arranged the rifle head of multiple described outer gas gun.
The combustion gas hierarchical arrangement method of described gas industry boiler combustion device, it is characterised in that: gas quantity needed for boiler
90%～10% sprayed into burner hearth by described burner, surplus is sprayed into burner hearth by multiple described outer gas guns towards the spout of burner hearth.
The positive effect of the present invention is: when work runs, and the combustion gas in burner is first ignited burning, the height that burning produces
Temperature mixed flue gas diffuses to the periphery of burner, the combustion gas that the outer gas gun spout that ignites sprays into, and makes the combustion gas can be in whole burner hearth
Burn in the biggest space, reduce flame mean temperature and peak temperature, and under the effect of aditus laryngis, form number
Individual flue gas inner circulating reflux, dilutes burner hearth oxygen content, reduces the discharge of NOx.So that the NOx amount produced is few, little
In 30mg/Nm3, and produce without CO.
Accompanying drawing explanation
The invention will be further described with embodiment in explanation below in conjunction with the accompanying drawings.
Fig. 1 is the outside that outer gas gun is placed in aditus laryngis, refractory brick course adjoin fixed structure schematic diagram in the same direction: (install
Loop wire 1 layer)；
Fig. 2 be the A of Fig. 1 to structural representation:
Fig. 3 is the outside that outer gas gun is placed in aditus laryngis, refractory brick course adjoin fixed structure schematic diagram in the same direction: (install loop wire 2
Layer)；
Fig. 4 be the A of Fig. 3 to structural representation:
Fig. 5 is that outer gas gun is L-shaped, and the long limit of L-type is arranged on inside described aditus laryngis, and minor face radial direction parallel with aditus laryngis end face sets
Putting, the rifle head of gas gun is placed in the outboard structure schematic diagram of aditus laryngis；
Fig. 6 is that the A of Fig. 5 is to structure.
In figure: 1 burner: 2 aditus laryngis: 3 outer gas guns: 4 boiler setting refractory brick courses；5 outer gas guns
Rifle head；6 rifle heads install loop wire；7 inner of the boiler chamber walls.
Detailed description of the invention
The invention will be further described with detailed description of the invention in explanation below in conjunction with the accompanying drawings.
Fig. 1～Fig. 6 is present configuration schematic diagram, and from diagram, a kind of gas industry boiler combustion device, including pot
Stove furnace wall 4, aditus laryngis 2, burner 1 and outer gas gun 3, described boiler setting 4, aditus laryngis 2, burner 1 are the most coaxial
Arrange, it is characterised in that: the outside (Fig. 1～Fig. 4)/of described aditus laryngis 2 or inner side (Fig. 5～Fig. 6) are equipped with multiple described outer combustion gas
Rifle 3, and fix in the same direction；The rifle head 5 of described outer gas gun 3 is the outside of described aditus laryngis 2 in being arranged on burner hearth, described outer gas gun 3
The end face of rifle head 5 is equipped with multiple combustion gas spout towards burner hearth.
In described burner hearth, the outer side edges of aditus laryngis 2 is between described inner of the boiler chamber wall 7, and axial symmetry arranges several different radiis
The rifle head of outer gas gun loop wire 6(such as 1～6 layer is installed), each rifle head installation loop wire arranges the rifle of multiple described outer gas gun 3
5.Rifle head installs loop wire 6 on-demand can arrange 1～6 layer, and in embodiment, Fig. 1, Fig. 2 rifle head is installed loop wire 6 and arranged 1 layer, Fig. 3,
Fig. 4 rifle head is installed loop wire 6 and is arranged 2 layers；Each layer loop wire 6 is installed and 2～40 outer gas gun 3 rifle heads 5, Fig. 3 can on-demand be set
Ectomesoderm is installed loop wire 6 and is laid 15 rifle heads 5, and internal layer is installed loop wire 6 and arranged 10 rifle heads 5.
Described gas industry boiler combustion device and combustion gas hierarchical arrangement method thereof, it is characterised in that: combustion gas needed for boiler
Amount 90%～10% sprayed into burner hearth by described burner, surplus is sprayed into stove by multiple described outer gas guns towards the spout of burner hearth
Thorax.
Fig. 5 is by one group of external combustion air-gun arrangement inside aditus laryngis 2 as a example by burner region, and outer gas gun 3 can use the L-type body of a gun, logical
Crossing L-type rifle, the rifle head 5 of outer gas gun 3 is located at the periphery of aditus laryngis 2, fuel is delivered to the periphery of aditus laryngis 2, by outer gas gun 3
Spray orifice injection on rifle head 5 end face is burnt to burner hearth, expands the coverage of fuel with this, reduces in combustion zone
Heart temperature, reduces the generation of NOx.The outer gas gun 3 that this kind is arranged need to use resistant to elevated temperatures material, as 2520 rustless steels make.
During work, the combustion gas in burner 1 is first ignited burning, and the high temperature mixed flue gas that burning produces diffuses to burner
The periphery of 1, the combustion gas of the outer gas gun 3 rifle head 5 that ignites ejection, make combustion gas can space the biggest in whole burner hearth be carried out
Burning, reduces flame mean temperature and peak temperature, and forms several smoke backflow under the effect of aditus laryngis 2, dilute stove
Thorax oxygen content, reduces the discharge of NOx.
In the end face of outer gas gun 3 rifle head 5, be equipped with multiple combustion gas spout, end face towards burner hearth, outer gas gun 3 rifle head 5
Spout is located at the periphery of aditus laryngis, and the flame that the combustion gas ejected produces with air out in aditus laryngis and burner mixes combustion
Burn.The setting of outer gas gun, decreases the gas quantity of burner region, increases the distributed areas of gaseous fuel, adds fire
Flame degree of filling in burner hearth, reduces flame mean temperature and peak temperature, decreases the production of thermal NO x, effectively drops
The low concentration of emission of NOx.
Claims (5)
1. a gas industry boiler combustion device, including boiler setting, aditus laryngis, burner and outer gas gun, described Boiler Furnace
Wall, aditus laryngis, burner are coaxially disposed the most from outside to inside, it is characterised in that: the outside/of described aditus laryngis or inner side are equipped with multiple institute
State outer gas gun, and adjacent in the same direction fixing；The rifle head of described outer gas gun be arranged on burner hearth in the outside of described aditus laryngis, described outside
The end face of gas gun rifle head is equipped with multiple combustion gas spout towards burner hearth.
Gas industry boiler combustion device the most according to claim 1, it is characterised in that: described outer gas gun is placed in described larynx
Mouthful outside, adjacent fixing in the same direction by the peripheral refractory brick course of described aditus laryngis, the rifle head of described outer gas gun expose stretch out resistance to
Firebrick course, is placed in the outside of aditus laryngis in described burner hearth.
Gas industry boiler combustion device the most according to claim 1, it is characterised in that: the described outer gas gun body of a gun is L-shaped,
The long limit of L-type is arranged on burner region inside described aditus laryngis, with described aditus laryngis inside adjacent fixing in the same direction, minor face and described larynx
Mouthful end face is parallel is radially arranged, and the end of described minor face is the rifle head of described outer gas gun, is placed in the outside of described aditus laryngis.
Gas industry boiler combustion device the most according to claim 1, it is characterised in that: the outer side edges of aditus laryngis in described burner hearth
Between described inner of the boiler chamber wall, axial symmetry arranges the rifle head of the outer gas gun of multiple different radii and installs loop wire, each rifle head
Loop wire is installed and lays the rifle head of multiple described outer gas guns.
5. the combustion gas hierarchical arrangement method of gas industry boiler combustion device described in claim 1, it is characterised in that: needed for boiler
90%～the 10% of gas quantity is sprayed into burner hearth by described burner, and surplus is sprayed into towards the spout of burner hearth by multiple described outer gas guns
Burner hearth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610840312.2A CN106247319A (en) | 2016-09-22 | 2016-09-22 | A kind of gas industry boiler combustion device and combustion gas hierarchical arrangement method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610840312.2A CN106247319A (en) | 2016-09-22 | 2016-09-22 | A kind of gas industry boiler combustion device and combustion gas hierarchical arrangement method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106247319A true CN106247319A (en) | 2016-12-21 |
Family
ID=57600380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610840312.2A Pending CN106247319A (en) | 2016-09-22 | 2016-09-22 | A kind of gas industry boiler combustion device and combustion gas hierarchical arrangement method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106247319A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678793A (en) * | 2017-01-25 | 2017-05-17 | 上海华之邦科技股份有限公司 | Fuel gas graded and segmented distribution combustion device and fuel gas graded and segmented distribution method thereof |
| CN108488794A (en) * | 2018-05-10 | 2018-09-04 | 上海华之邦科技股份有限公司 | A kind of low NOx high heating values gas combustion apparatus of flue gas classification internal-circulation type |
| CN109751600A (en) * | 2019-03-07 | 2019-05-14 | 上海华之邦科技股份有限公司 | A kind of fuel gas combustion system of multitubular boiler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964282A (en) * | 2015-02-11 | 2015-10-07 | 上海浩用工业炉有限公司 | Double-preheating environmental protection combustor for tube heating furnace and applications thereof |
| CN105135432A (en) * | 2015-09-21 | 2015-12-09 | 上海华之邦科技股份有限公司 | Ultra-low-NOx gas burner |
| CN205119059U (en) * | 2015-11-09 | 2016-03-30 | 上海华之邦科技股份有限公司 | Low emission gas combustion stove |
| CN206112907U (en) * | 2016-09-22 | 2017-04-19 | 上海华之邦科技股份有限公司 | Gas industrial boiler burner |
-
2016
- 2016-09-22 CN CN201610840312.2A patent/CN106247319A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964282A (en) * | 2015-02-11 | 2015-10-07 | 上海浩用工业炉有限公司 | Double-preheating environmental protection combustor for tube heating furnace and applications thereof |
| CN105135432A (en) * | 2015-09-21 | 2015-12-09 | 上海华之邦科技股份有限公司 | Ultra-low-NOx gas burner |
| CN205119059U (en) * | 2015-11-09 | 2016-03-30 | 上海华之邦科技股份有限公司 | Low emission gas combustion stove |
| CN206112907U (en) * | 2016-09-22 | 2017-04-19 | 上海华之邦科技股份有限公司 | Gas industrial boiler burner |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678793A (en) * | 2017-01-25 | 2017-05-17 | 上海华之邦科技股份有限公司 | Fuel gas graded and segmented distribution combustion device and fuel gas graded and segmented distribution method thereof |
| CN106678793B (en) * | 2017-01-25 | 2019-04-30 | 上海华之邦科技股份有限公司 | The hierarchical segmented configuration burner of combustion gas and its hierarchical segmented configuration method of combustion gas |
| CN108488794A (en) * | 2018-05-10 | 2018-09-04 | 上海华之邦科技股份有限公司 | A kind of low NOx high heating values gas combustion apparatus of flue gas classification internal-circulation type |
| CN109751600A (en) * | 2019-03-07 | 2019-05-14 | 上海华之邦科技股份有限公司 | A kind of fuel gas combustion system of multitubular boiler |
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| PB01 | Publication | ||
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Application publication date: 20161221 |