CN201014436Y - Low NOx Axial Vortex Pulverized Coal Burner - Google Patents
Low NOx Axial Vortex Pulverized Coal Burner Download PDFInfo
- Publication number
- CN201014436Y CN201014436Y CNU2007200933150U CN200720093315U CN201014436Y CN 201014436 Y CN201014436 Y CN 201014436Y CN U2007200933150 U CNU2007200933150 U CN U2007200933150U CN 200720093315 U CN200720093315 U CN 200720093315U CN 201014436 Y CN201014436 Y CN 201014436Y
- Authority
- CN
- China
- Prior art keywords
- combustion chamber
- injection pipe
- pulverized coal
- fixed
- rear end
- 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.)
- Expired - Fee Related
Links
- 239000003245 coal Substances 0.000 title claims abstract description 29
- 238000002485 combustion reaction Methods 0.000 claims abstract description 28
- 238000002347 injection Methods 0.000 claims abstract description 17
- 239000007924 injection Substances 0.000 claims abstract description 17
- 239000000446 fuel Substances 0.000 claims abstract description 10
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 6
- 239000011449 brick Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 abstract description 3
- 239000007921 spray Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
低氮氧化物轴向涡流粉煤燃烧器。包括一个筒状的燃烧室，其特征在于燃烧室后端盖中部固定一个粉煤喷射管道，喷射管道前端与燃烧室连通，喷射管道内设置一个喷嘴调整螺杆，喷嘴调整螺杆的前端的锥形体与喇叭形反射体构成一个可调式喷嘴，喷射管道上有一个燃料入口，燃烧室筒壁上有进风管，燃烧室筒壁外有一个环形风道。本实用新型通过压力将粉煤喷射到燃烧室内，粉煤在燃烧室内旋转燃烧，粉煤燃烧十分充分，解决了目前锅炉煤层静态燃烧不充分的问题，本实用新型燃烬率在95％以上。
Low NOx axial swirl pulverized coal burner. It includes a cylindrical combustion chamber, which is characterized in that a pulverized coal injection pipe is fixed in the middle of the rear end cover of the combustion chamber. The front end of the injection pipe communicates with the combustion chamber. A nozzle adjustment screw is arranged in the injection pipe. The trumpet-shaped reflector forms an adjustable nozzle, a fuel inlet is arranged on the injection pipe, an air inlet pipe is arranged on the cylinder wall of the combustion chamber, and an annular air duct is arranged outside the cylinder wall of the combustion chamber. The utility model sprays the pulverized coal into the combustion chamber through pressure, and the pulverized coal is rotated and burned in the combustion chamber, and the pulverized coal is fully burned, which solves the problem of insufficient static combustion of the coal seam of the current boiler, and the burnout rate of the utility model is above 95%.
Description
Technical field
The utility model belongs to coal fired combustion.
Background technology
Present common coal-burning boiler all is made up of critical pieces such as drum, water screen tube, burner hearth, chain type fire grates, this boiler fired coal burns on fire grate, fire coal is in static state basically, therefore when burning and Air mixing insufficient, and then cause burning not thorough, burnout rate is low, the energy consumption height, the thermal efficiency is low, and the smoke evacuation nitrogen-containing oxide is very high, contaminated environment.For addressing this problem, people have carried out many improvement to boiler structure for many years, but all fail to change coal-fired static combustion mode, and effect is not very desirable.
Summary of the invention
The purpose of this utility model is to provide a kind of and the matching used coal-fired combusting device of boiler, make coal fully burning under dynamic situation, and then the raising thermal efficiency, reduce and pollute, as shown in drawings, the utility model comprises the combustion chamber of a tubular, the combustion chamber barrel is made of shell and fixing refractory brick in the enclosure, the tubular combustion chamber is fixed on the bearing, it is characterized in that chamber front end is opening-like, the hinged rear end cap in rear end, a Pulverized coal injecting pipeline is fixed at the rear end cap middle part, the injection pipe front end is communicated with the combustion chamber, a nozzle is set in the injection pipe adjusts screw rod, nozzle is adjusted screw rod and is fixed with shell outward, nozzle is adjusted screw front end and rear end and is threaded with screw bracket and injection pipe end socket in the injection pipe respectively, nozzle is adjusted the front end of screw rod and is fixed a bullet, the injection pipe front end is fixed with tubaeform reflector, bullet and tubaeform reflector constitute an adjustable nozzle, a fuel inlet is arranged on the injection pipe, fix a fuel ignition device on the rear end cap and see vent, on the barrel of combustion chamber blast pipe is arranged, blast pipe and vertical direction have the inclination angle, adjustable air door is arranged on the air intake pipe orifice, and the combustion chamber barrel has an annular passage outward.Fuel inlet of the present utility model links to each other with feeding system, pressure effect under by injection pipe with Pulverized coal injecting in the combustion chamber, blast pipe forms the axial eddy whirlwind in the combustion chamber, fine coal is rotary combustion in the combustion chamber, fully mix with air, and under the effect of airduct swirling eddy in burner the formula of spinning advance, fine coal is long the dead time in burner, thereby reached the clean-burning purpose of fine coal, the flame combustion chamber temperature can reach 1250 ℃～1700 ℃, and lime-ash is discharged with liquid form.The burnout rate of the utility model fine coal is more than 95%, and the thermal efficiency is more than 99%.Coal saving rate is up to more than 50%.Because the airduct air-flow at combustor exit place reduces flame temperature, has effectively suppressed the generation at burnt zone nitrogen oxide and sulfide.
The utility model and boiler are supporting, and boiler is transformed a little, use as the burner of boiler, also can with coal furnace and the supporting uses of road and bridge mixing plant such as forge furnace, kiln, have wide range of applications.
Description of drawings
Accompanying drawing 1 is the axial cutaway view of the utility model tubular burner;
Accompanying drawing 2 is the utility model left view;
Accompanying drawing 3 is the utility model radial cross-section.
Legend: 1, air door, 2, throttle linkage, 3, annular passage, 4, blast pipe, 5, burner housing, 6, the burner rear end cap, 7, fuel ignition device, 8, the Pulverized coal injecting pipeline, 9, nozzle adjusts the screw rod shell, 10, fuel inlet, 11, nozzle adjusts screw rod, 12, see vent, 13, nozzle is adjusted the screw front end support, 14, tubaeform reflector, 15, bullet
The specific embodiment
With with the supporting burner of 10 tons of boilers be example, 1 provide embodiment of the present utility model in conjunction with the accompanying drawings.1400 millimeters of tubular internal diameter of burner, 2000 millimeters of length, shell rolls welding with thick 10 millimeters steel plate, and heat-insulation layer is built by the heterotypic fire brick arch and is formed, and annular passage is rolled by thick 6 millimeters steel plate, welds with burner housing.Four row blast pipes are set on the burner, whenever list and establish 5 blast pipes, blast pipe has 15 degree inclination angles with vertical side, becomes 20 degree angles with tube internal diameter tangential direction, and the diameter of blast pipe is 40 millimeters.Connect by connecting rod between the air door of blast pipe, make the linkage structure.219 millimeters of injector diameters, 650 millimeters of length, it is gusseted that nozzle is adjusted the screw front end support, the handle of rotary screw rear end can change the gap of bullet and reflector, thereby changes the optimum igniting point and the length of flame of coal gas mixture.Fuel inlet is connected with fuel efferent duct from coal pulverizer by ring flange, utilizes the coal pulverizer blower fan that fine coal is sent into injection pipe and entered the combustion chamber.Sight vent on the rear end cap is 80 * 150 millimeters.Present embodiment is transformed the supporting use in back to boiler, and boiler per hour uses 1.6 tons in mark coal before transforming, and reaching applying working condition from a stove needed more than 2 hours, and fire box temperature reaches about 900 ℃, and has black smoke to discharge.Per hour use mark coal 750～900kg after the transformation, reach applying working condition from a stove and need about 1 hour, fire box temperature reaches 1000 ℃～1500 ℃, and the flue gas of an adularescent is discharged, and coal saving rate is 56.25%.Burnout rate is 99.5%, the thermal efficiency is 99.56%.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200933150U CN201014436Y (en) | 2007-02-12 | 2007-02-12 | Low NOx Axial Vortex Pulverized Coal Burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200933150U CN201014436Y (en) | 2007-02-12 | 2007-02-12 | Low NOx Axial Vortex Pulverized Coal Burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201014436Y true CN201014436Y (en) | 2008-01-30 |
Family
ID=39026230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200933150U Expired - Fee Related CN201014436Y (en) | 2007-02-12 | 2007-02-12 | Low NOx Axial Vortex Pulverized Coal Burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201014436Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012022A (en) * | 2010-11-29 | 2011-04-13 | 黄云生 | Pulverized coal jetting and combusting mechanism |
| CN103672882A (en) * | 2013-12-13 | 2014-03-26 | 杭州全合科技有限公司 | Two-section type pulverized coal burner |
-
2007
- 2007-02-12 CN CNU2007200933150U patent/CN201014436Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012022A (en) * | 2010-11-29 | 2011-04-13 | 黄云生 | Pulverized coal jetting and combusting mechanism |
| CN102012022B (en) * | 2010-11-29 | 2012-11-14 | 黄云生 | Pulverized coal jetting and combusting mechanism |
| CN103672882A (en) * | 2013-12-13 | 2014-03-26 | 杭州全合科技有限公司 | Two-section type pulverized coal burner |
| CN103672882B (en) * | 2013-12-13 | 2016-08-31 | 杭州全合科技有限公司 | A kind of two-period form coal burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 Termination date: 20100212 |