CN106287691A - A kind of water-coal-slurry injection boiler eddy flow low-NOx combustor of top layout - Google Patents
A kind of water-coal-slurry injection boiler eddy flow low-NOx combustor of top layout Download PDFInfo
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- CN106287691A CN106287691A CN201510249501.8A CN201510249501A CN106287691A CN 106287691 A CN106287691 A CN 106287691A CN 201510249501 A CN201510249501 A CN 201510249501A CN 106287691 A CN106287691 A CN 106287691A
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Abstract
A kind of water-coal-slurry injection boiler eddy flow low-NOx combustor of top layout, it is characterised in that: include the most sequentially coaxially the water-coal-slurry holster pipe of heart layout, primary air piping, inner second air pipe；Several outer second air pipes that inner second air outer tube layer sets between being circular layout, leave space, have material feeding layer in gap between inner second air pipe and outer second air pipe；Primary air piping is installed high-energy igniter sleeve pipe and gas gun sleeve pipe.The present invention reduces the NOx emission in coal-water slurry combustion.
Description
Technical field
The present invention relates to a kind of burner, feature is that the water-coal-slurry injection boiler eddy flow of a kind of top layout is low
NOx combustion device.
Background technology
Xinjiang of China oil-field thick-oil mining conventional gas injection boiler, along with natural gas consumption is limited and
The impact of the big unfavorable factor of upward price adjustment two, remanufactures existing conventional gas injection boiler and upgrades to water coal
Starching overheated uphole steam generator is with one of coal selection that now fuel makes the transition for QI excess.Coal in China reserves are rich
Richness, coal is complete, develop and apply COAL-WATER SLURRY TECHNOLOGY meet country with coal for replacing oil energy policy, be promote
One important content of clean coal technology.Water-coal-slurry has price just as a kind of oil-fired succedaneum
Preferably, the advantage such as low stain, technology maturation, but compared to gas fired-boiler, coal-water slurry combustion is produced
Raw NOx emission and cinder pollution problem are the keys being badly in need of solving, due to current combustion device self structure
Defect, cause existing water coal slurry burner NOx emission generally the highest.How to ensure that water-coal-slurry is existing
Injection boiler reduces NOx emission while stable ignition, burning, is aided with afterbody denitration, to reach simultaneously
To the level suitable with original gas steam injection boiler, it is that water-coal-slurry injection boiler low NO is badly in need of solving
Problem.
Summary of the invention
The present invention provides the water-coal-slurry injection boiler eddy flow low-NOx combustor of a kind of top layout, its purpose
It is to overcome deficiency of the prior art, reduces the NOx emission in coal-water slurry combustion.
For solving technical problem, the invention provides a kind of combusting coal water slurry eddy flow being applicable to injection boiler low
The water-coal-slurry injection boiler eddy flow low-NOx combustor of a kind of top layout of NOx combustion device, it is characterised in that:
Including the most sequentially coaxially heart arrange water-coal-slurry holster pipe, primary air piping, inner second air pipe；In
Several outer second air pipes that secondary air channel outer layer sets between being circular layout, inner second air pipe and outer second air
Leave space between pipe, gap has material feeding layer；Primary air piping is installed high-energy igniter sleeve pipe and combustion
Air gun sleeve pipe.
The spout of described primary air piping and the spout of inner second air pipe are ring-type, and the spout of outer second air pipe is
The circular hole set between being circular layout.
The spout of described primary air piping is than the spout indentation 40mm of inner second air pipe.
The spout off-center shaft angle degree of described outer second air pipe is 10 °.
Described primary air piping and inner second air pipe are respectively provided with cyclone, the spout of primary air piping and interior
Secondary air channel spout extends out, and the spout flaring angle of primary air piping is greater than the enlarging of inner second air pipe spout
Angle.
The beneficial effects of the present invention is:
(1) traditional oilfield exploitation uses gas steam injection boiler, and its burner, with natural gas as fuel, becomes
This height, consumption is big, water-coal-slurry injection boiler low-NOx combustor of the present invention with water-coal-slurry as fuel,
Low price, NOx emission are low, can improve the economy that injection boiler runs.
(2) total blast volume needed for water coal slurry burner be divide into multiply by the present invention, and by between each stock wind
Leave rational gap, effectively control the mixing of each stock wind and water-coal-slurry, in the premise ensureing efficiency of combustion
Under NOx emission is greatly reduced.
Accompanying drawing explanation
Fig. 1 is water-coal-slurry injection boiler low-NOx combustor structural representation.
Fig. 2 is water-coal-slurry injection boiler low-NOx combustor spout schematic diagram.
Reference: 1: water-coal-slurry holster pipe；2: primary air piping；3: inner second air pipe；4: outer two
Secondary airduct；5: First air cyclone；6: inner second air cyclone；7: swirl strength adjusting means；8
Main air intake adjusting means；9: secondary air register adjusting means；10: pouring material；11: high-energy igniter set
Pipe；12: ignition air gun sleeve pipe.
Detailed description of the invention
Below in conjunction with the accompanying drawings 1 and accompanying drawing 2, the detailed description of the invention of the present invention is illustrated by.
Low-NOx combustor for combusting coal water slurry is arranged in injection boiler top, and Fig. 1 arrow is wind direction.From interior to
Being followed successively by outward water-coal-slurry holster pipe 1, primary air piping 2, inner second air pipe 3, concentric is arranged, center is
Water-coal-slurry passage, periphery is eddy flow First air passage, then outer layer is eddy flow inner second air passage, outermost layer
For 8 the outer second air pipes 4 set between being circular layout, all spouts are down.Wherein: primary air piping goes out
Installing First air cyclone 5 at Kou, swirl strength is fixed, by main air intake adjusting means 8 scalable
Air quantity；Installing inner second air cyclone 6 in the middle part of secondary air channel, regulative mode uses existing adjustable swirl knot
Structure, regulates swirl strength, the adjustable length of flame by swirl strength adjusting means 7, it is ensured that burning effect
Rate.Leave annulus space between inner second air pipe 3 and outer second air pipe 4, wherein beat castable 10, keep away
Exempt from interior outer second air to mix too early.Primary air piping 2 is arranged high-energy igniter sleeve pipe 11 and gas gun sleeve pipe
12, in order to arrange high-energy igniter and gas gun, light a fire for water-coal-slurry.Outer second air pipe 4 pattern is
Direct current, can intercept outer second air and mix with the too early of water-coal-slurry；The spout of each airduct of First air, secondary wind
Outlet is designed to flare form, expands angle different, and First air flaring angle is greater than secondary wind, with rationally
Control mixing and the length of flame of each layer wind.
Air quantity needed for water-coal-slurry ejects pre-burning of catching fire from low-NOx combustor for combusting coal water slurry is divided into three
Stock, including eddy flow First air, eddy flow inner second air and direct current outer second air.Primary air piping 2 spout ratio is interior
Secondary air channel 3 spout indentation 40mm, 8 outer second air pipe 4 spout off-center shaft angle degree are 10 degree.
Primary air piping 2 spout and inner second air pipe 3 spout are ring-type, and outer second air pipe 4 spout is for being circular layout
Between the circular hole that sets.Leave rational gap between the most each stock wind, effectively control each stock wind and water coal
The mixing of slurry, is greatly reduced NOx emission on the premise of ensureing efficiency of combustion.
Total blast volume needed for cool water mixture burning divide into three parts: water-coal-slurry ejected from burner
Air quantity needed for fire pre-burning, water-coal-slurry be air quantity needed for steady combustion and the SOFA wind of burning-out zone in burner hearth,
Two aspect effects can be played: one is to make preignition zone burning of catching fire by the design of such air classification air distribution
Preliminary stage total oxygen demand is in best oxygen concentration, it is achieved the suppression that burning initial stage NOx generates；Two be for
Cool water mixture burning supplements oxygen amount mid-term in good time, it is ensured that burn rate is not affected because of Researched of Air Staging Combustion Burning Pulverized Coal.
Each layer wind entrance arranges air door, regulates each stock air quantity, to adapt to the needs of water-coal-slurry low-nitrogen burning.
Each stock wind and the mixing of water-coal-slurry in low NO is effectively controlled, it is ensured that water coal by above measure
Starch whole combustion process all to carry out under best oxygen concentration, be greatly reduced on the premise of ensureing efficiency of combustion
NOx emission.
The advantage of the present invention is: water-coal-slurry injection boiler low-NOx combustor, uses water-coal-slurry to make fuel,
Instead of the natural gas of costliness, low NOx drainage can be realized, effectively achieve water-coal-slurry for gas cleaning burning
And energy-saving and emission-reduction, improve the performance driving economy of injection boiler, Xinjiang Oilfield thickened oil recovery is had very well
Application prospect.
Claims (5)
1. the water-coal-slurry injection boiler eddy flow low-NOx combustor of a top layout, it is characterised in that: bag
Include the most sequentially coaxially the water-coal-slurry holster pipe of heart layout, primary air piping, inner second air pipe；Interior two
Several outer second air pipes that secondary airduct outer layer sets between being circular layout, inner second air pipe and outer second air pipe
Between leave space, gap has material feeding layer；Primary air piping is installed high-energy igniter sleeve pipe and combustion gas
Holster pipe.
The water-coal-slurry low NOx of injection boiler eddy flow of a kind of top layout the most according to claim 1
Burner, it is characterised in that: the spout of described primary air piping and the spout of inner second air pipe are ring-type, outward
The spout of secondary air channel be circular layout between the circular hole that sets.
The water-coal-slurry low NOx of injection boiler eddy flow of a kind of top layout the most according to claim 2
Burner, it is characterised in that: the spout of described primary air piping is than the spout indentation 40mm of inner second air pipe.
The water-coal-slurry low NOx of injection boiler eddy flow of a kind of top layout the most according to claim 2
Burner, it is characterised in that: the spout off-center shaft angle degree of described outer second air pipe is 10 °.
The water-coal-slurry low NOx of injection boiler eddy flow of a kind of top layout the most according to claim 2
Burner, it is characterised in that: described primary air piping and inner second air pipe are respectively provided with cyclone, one
Spout and the inner second air pipe spout of secondary airduct extend out, and the spout flaring angle of primary air piping is greater than interior two
The flaring angle of secondary airduct spout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510249501.8A CN106287691A (en) | 2015-05-15 | 2015-05-15 | A kind of water-coal-slurry injection boiler eddy flow low-NOx combustor of top layout |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510249501.8A CN106287691A (en) | 2015-05-15 | 2015-05-15 | A kind of water-coal-slurry injection boiler eddy flow low-NOx combustor of top layout |
Publications (1)
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| CN106287691A true CN106287691A (en) | 2017-01-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167826A (en) * | 2017-12-29 | 2018-06-15 | 浙江百能科技有限公司 | A kind of turbulent burner for being used for fuel oil or gas steam injection boiler |
| CN108506929A (en) * | 2018-03-13 | 2018-09-07 | 同济大学 | A kind of fuel oil flameless combustion apparatus and its system equipment |
| CN110793033A (en) * | 2018-08-01 | 2020-02-14 | 四川天法科技有限公司 | Biomass fuel slurry steam injection boiler rotational flow stable combustion burner |
| CN112484036A (en) * | 2020-10-23 | 2021-03-12 | 西安交通大学 | Stepless peak regulation coupling pyrolysis combustor and combustion system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6226413A (en) * | 1985-07-29 | 1987-02-04 | Hitachi Ltd | Spray method of coal and water slurry burner |
| CN101907295A (en) * | 2010-08-12 | 2010-12-08 | 浙江百能科技有限公司 | Low-NOx combustor for combusting coal water slurry and combustion method |
| CN202002096U (en) * | 2011-03-25 | 2011-10-05 | 武汉华是能源环境工程有限公司 | Water-coal-slurry low-nitrogen swirl burner |
| CN102563640A (en) * | 2012-01-19 | 2012-07-11 | 东方电气集团东方锅炉股份有限公司 | Oil burner with high-efficiency burning and low pollution emission |
| CN202647748U (en) * | 2012-04-20 | 2013-01-02 | 青岛特利尔新能源有限责任公司 | Anti-coking double cyclone coal-water slurry burner |
| CN102878554A (en) * | 2012-10-12 | 2013-01-16 | 浙江大学 | Combustor special for coal water slurry combustion type cracking furnace |
| CN103615717A (en) * | 2013-10-24 | 2014-03-05 | 中国计量学院 | Novel oxygen enrichment tiny-oil ignition and ultralow load stable-combustion combustor |
| CN204629471U (en) * | 2015-05-15 | 2015-09-09 | 四川天法科技有限公司 | A kind of water-coal-slurry injection boiler eddy flow low-NOx combustor of top layout |
-
2015
- 2015-05-15 CN CN201510249501.8A patent/CN106287691A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6226413A (en) * | 1985-07-29 | 1987-02-04 | Hitachi Ltd | Spray method of coal and water slurry burner |
| CN101907295A (en) * | 2010-08-12 | 2010-12-08 | 浙江百能科技有限公司 | Low-NOx combustor for combusting coal water slurry and combustion method |
| CN202002096U (en) * | 2011-03-25 | 2011-10-05 | 武汉华是能源环境工程有限公司 | Water-coal-slurry low-nitrogen swirl burner |
| CN102563640A (en) * | 2012-01-19 | 2012-07-11 | 东方电气集团东方锅炉股份有限公司 | Oil burner with high-efficiency burning and low pollution emission |
| CN202647748U (en) * | 2012-04-20 | 2013-01-02 | 青岛特利尔新能源有限责任公司 | Anti-coking double cyclone coal-water slurry burner |
| CN102878554A (en) * | 2012-10-12 | 2013-01-16 | 浙江大学 | Combustor special for coal water slurry combustion type cracking furnace |
| CN103615717A (en) * | 2013-10-24 | 2014-03-05 | 中国计量学院 | Novel oxygen enrichment tiny-oil ignition and ultralow load stable-combustion combustor |
| CN204629471U (en) * | 2015-05-15 | 2015-09-09 | 四川天法科技有限公司 | A kind of water-coal-slurry injection boiler eddy flow low-NOx combustor of top layout |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167826A (en) * | 2017-12-29 | 2018-06-15 | 浙江百能科技有限公司 | A kind of turbulent burner for being used for fuel oil or gas steam injection boiler |
| CN108506929A (en) * | 2018-03-13 | 2018-09-07 | 同济大学 | A kind of fuel oil flameless combustion apparatus and its system equipment |
| CN110793033A (en) * | 2018-08-01 | 2020-02-14 | 四川天法科技有限公司 | Biomass fuel slurry steam injection boiler rotational flow stable combustion burner |
| CN112484036A (en) * | 2020-10-23 | 2021-03-12 | 西安交通大学 | Stepless peak regulation coupling pyrolysis combustor and combustion system |
| CN112484036B (en) * | 2020-10-23 | 2022-06-07 | 西安交通大学 | Stepless peak regulation coupling pyrolysis combustor and combustion system |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |