CN205480978U - Minimum discharge combustor - Google Patents
Minimum discharge combustor Download PDFInfo
- Publication number
- CN205480978U CN205480978U CN201620017374.9U CN201620017374U CN205480978U CN 205480978 U CN205480978 U CN 205480978U CN 201620017374 U CN201620017374 U CN 201620017374U CN 205480978 U CN205480978 U CN 205480978U
- Authority
- CN
- China
- Prior art keywords
- fgr
- archimedes spiral
- thick bamboo
- advance
- section
- 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.)
- Active
Links
Abstract
The utility model discloses a minimum discharge combustor, including air intake, archimedes spiral wind channel, vortex generater, gas import, mix a burning section of thick bamboo, a FGR recycling section of thick bamboo, the FGR hole that recycles in advance, the air intake sets up at archimedes spiral wind channel tip, the archimedes spiral wind channel with mix a burning section of thick bamboo in advance and communicate, vortex generater install the inboard of archimedes spiral wind channel and with mix burning section of thick bamboo intercommunication in advance, mix installation gas import in the burning section of thick bamboo in advance, a FGR recycling section of thick bamboo is installed and is being mixed burning section of thick bamboo tip in advance, and the outside is provided with FGR recycling hole. The utility model discloses a archimedes spiral air inlet duct, improved the mixed effect of gas and combustion -supporting control, guaranteed the temperature and the homogeneity of flame, FGR recycling urceolus forms a negative pressuren zone at high -speed flame rear portion, utilize the opening on the urceolus, draws in the flame rear portion to the flue gas in the combustion chamber, makes during it participates in the burning, messenger nitrogen oxide's emission level obtains further reduction.
Description
Technical field
This utility model belongs to boiler plant field, particularly relates to a kind of minimum discharge burner.
Background technology
Along with going deep into of environmental improvement, the discharge standard for boiler industry is also constantly improving, and nitrogen oxides (NOx) discharge standard has been increased to 30mg/m3。
The shortcoming of prior art:
1. premix, although discharging low, but the regulation ratio of conventional premix is only less than 10:1.For boiler, such regulation is than the requirement that can not meet far away actual application.
2. fractional combustion: use more in high temperature industry at present, but control system is complicated, to measure the different air of combustion phases, gas discharge, to control, and the structure of burner is the most complicated.At primary combustion zone, artificially cause anoxycausis, and then reduce the generation of nitrogen oxides (NOx).Unnecessary fuel, burns at secondary combustion region.
Utility model content
The purpose of this utility model is to provide a kind of minimum discharge burner, it is intended to solving traditional boiler combustion equipment fuel mixing uneven, the amount of nitrogen oxides that burning produces is high, controls complicated problem.
This utility model is achieved in that a kind of minimum discharge burner includes air inlet, Archimedes spiral air channel, vortex generator, fuel gas inlet, premixed combustion cylinder, FGR recirculation cylinder, FGR recirculation ports；
Described air inlet is arranged on described end, Archimedes spiral air channel, and this Archimedes spiral air channel connects with described premixed combustion cylinder；
Described vortex generator is arranged on the inner side in described Archimedes spiral air channel and connects with described premixed combustion cylinder, installs fuel gas inlet in described premixed combustion cylinder；
Described FGR recirculation cylinder is arranged on described premixed combustion cylinder end, is provided with FGR recirculation ports outside this FGR recirculation cylinder.
Further, described vortex generator uses four tangential inlet structures, quadrangle tangential circle, angle 90 degree.
Further, four tangential inlet of described vortex generator can be transformed into two tangential inlet or three tangential inlet.
This utility model have employed Archimedes spiral intake air way and tangent air inlet, simple in construction, combustion air is made to enter high speed rotating after combustion barrel, improve the mixed effect of combustion gas and combustion-supporting control, combustion air without excess, ensure that temperature and the uniformity of flame, FGR recirculation urceolus forms a negative pressuren zone at high-speed flame rear portion, utilize the opening on urceolus, flue gas in combustor is drawn in flame rear portion, make it participate in burning, make the emission level of nitrogen oxides be reduced further.
Accompanying drawing explanation
Fig. 1 is the structural representation of the minimum discharge burner that this utility model embodiment provides；
Fig. 2 is four tangential inlet structures of the vortex generator that this utility model embodiment provides；
Fig. 3 is two tangential inlet structures of the vortex generator that this utility model embodiment provides；
Fig. 4 is three tangential inlet structures of the vortex generator that this utility model embodiment provides；
In figure: 1, air inlet；2, Archimedes spiral air channel；3, vortex generator；4, fuel gas inlet；5, premixed combustion cylinder；6, FGR recirculation cylinder；7, FGR recirculation ports.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described further:
Refer to Fig. 1 to Fig. 4:
A kind of minimum discharge burner includes air inlet 1, Archimedes spiral air channel 2, vortex generator 3, fuel gas inlet 4, premixed combustion cylinder 5, FGR recirculation cylinder 6, FGR recirculation ports 7；
Described air inlet 1 is arranged on described end, Archimedes spiral air channel 2, and this Archimedes spiral air channel 2 connects with described premixed combustion cylinder 5；
Described vortex generator 3 is arranged on the inner side in described Archimedes spiral air channel 2 and connects with described premixed combustion cylinder 5, installs fuel gas inlet 4 in described premixed combustion cylinder 5；
Described FGR recirculation cylinder 6 is arranged on described premixed combustion cylinder 5 end, is provided with FGR recirculation ports 7 outside this FGR recirculation cylinder 6.
Further, described vortex generator 3 uses four tangential inlet structures, quadrangle tangential circle, angle 90 degree.
Further, four tangential inlet of described vortex generator 3 can be transformed into two tangential inlet or three tangential inlet.
Air inlet, arbitrarily angled entrance in 0-360 degree；
Combustion air flows in Archimedes spiral air channel 2, and energy loss is little, and makes combustion air start to rotate；
Vortex generator 3 uses four tangential inlet (quadrangle tangential circle, angle 90 degree) mode, and combustion air is high speed rotating in premixed combustion cylinder 5.Two tangential inlet (angle 180 degree) or three tangential inlet (angle 120 degree) can be transformed into.
Natural gas enters 4 from fuel gas inlet；
Combustion air mixes in premixed combustion cylinder 5 with natural gas and burns；
Combustion tail gas is ejection at a high speed in premixed combustion cylinder 5, FGR recirculation cylinder 6 isolate generation negative pressure region；
Some gases tail gas is sucked in cylinder from the outside through crossing FGR recirculation ports 7 by the negative pressure in FGR recirculation cylinder 6, again participates in burning.
This utility model have employed Archimedes spiral intake air way and tangent air inlet, simple in construction, combustion air is made to enter high speed rotating after combustion barrel, improve the mixed effect of combustion gas and combustion-supporting control, combustion air without excess, ensure that temperature and the uniformity of flame, FGR recirculation urceolus forms a negative pressuren zone at high-speed flame rear portion, utilize the opening on urceolus, flue gas in combustor is drawn in flame rear portion, make it participate in burning, make the emission level of nitrogen oxides be reduced further.
The above is only to preferred embodiment of the present utility model, not this utility model is made any pro forma restriction, every according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, belong in the range of technical solutions of the utility model.
Claims (3)
1. a minimum discharge burner, it is characterised in that described minimum discharge burner includes air inlet, Archimedes spiral air channel, vortex generator, fuel gas inlet, premixed combustion cylinder, FGR recirculation cylinder, FGR recirculation ports；
Described air inlet is arranged on described end, Archimedes spiral air channel, and this Archimedes spiral air channel connects with described premixed combustion cylinder；
Described vortex generator is arranged on the inner side in described Archimedes spiral air channel and connects with described premixed combustion cylinder, installs fuel gas inlet in described premixed combustion cylinder；
Described FGR recirculation cylinder is arranged on described premixed combustion cylinder end, is provided with FGR recirculation ports outside this FGR recirculation cylinder.
2. minimum discharge burner as claimed in claim 1, it is characterised in that described vortex generator uses four tangential inlet structures, quadrangle tangential circle, angle 90 degree.
3. minimum discharge burner as claimed in claim 1, it is characterised in that the one in four tangential inlet of the employing of described vortex generator, two tangential inlet or three tangential inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620017374.9U CN205480978U (en) | 2016-01-11 | 2016-01-11 | Minimum discharge combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620017374.9U CN205480978U (en) | 2016-01-11 | 2016-01-11 | Minimum discharge combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205480978U true CN205480978U (en) | 2016-08-17 |
Family
ID=56664400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620017374.9U Active CN205480978U (en) | 2016-01-11 | 2016-01-11 | Minimum discharge combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205480978U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546532A (en) * | 2016-01-11 | 2016-05-04 | 安德森热能科技（苏州）有限责任公司 | Ultra-low-emission burner |
| CN109812809A (en) * | 2017-11-20 | 2019-05-28 | 安德森热能科技（苏州）有限责任公司 | A kind of low emission combustor |
| CN115406100A (en) * | 2022-09-05 | 2022-11-29 | 南京宜热纵联节能科技有限公司 | Indirect heat exchange type hot blast stove |
-
2016
- 2016-01-11 CN CN201620017374.9U patent/CN205480978U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546532A (en) * | 2016-01-11 | 2016-05-04 | 安德森热能科技（苏州）有限责任公司 | Ultra-low-emission burner |
| CN109812809A (en) * | 2017-11-20 | 2019-05-28 | 安德森热能科技（苏州）有限责任公司 | A kind of low emission combustor |
| CN109812809B (en) * | 2017-11-20 | 2024-02-23 | 安德森热能科技（苏州）有限责任公司 | Low-emission combustor |
| CN115406100A (en) * | 2022-09-05 | 2022-11-29 | 南京宜热纵联节能科技有限公司 | Indirect heat exchange type hot blast stove |
| CN115406100B (en) * | 2022-09-05 | 2024-01-12 | 南京宜热纵联节能科技有限公司 | Indirect heat exchange type hot blast stove |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203757766U (en) | Rich oil direct-mixing partitioning combustion chamber | |
| CN205504983U (en) | Gas recirculation low NOx burner in combustion -supporting wind injection type stove | |
| CN204165044U (en) | The premixed coal dust low NO of a kind of adverse current | |
| CN205137451U (en) | Force to draw low NOx gas combustion ware of penetrating flue gas backward flow | |
| CN107575891B (en) | A kind of dual-fuel gas turbine low pollution combustor head construction | |
| CN102679337B (en) | Cyclone combustor with adjustable flame shape and mixing strength | |
| CN103822229B (en) | A kind of low swirl nozzle of gas-turbine combustion chamber | |
| CN205480978U (en) | Minimum discharge combustor | |
| CN111121023A (en) | Fuel side flue gas recirculation nitrogen combustor and combustion method thereof | |
| CN109595593A (en) | A kind of swirl combustion chamber head of air inlet section-variable | |
| CN104595900A (en) | Low-nitrogen-oxide gas combustor and combustion method of combustor | |
| CN104154533A (en) | Reverse flow pre-mixing type pulverized coal low-nitrogen combustor and combustion method thereof | |
| CN204880116U (en) | Low NOX gas combustion ware | |
| CN103939907A (en) | Ejector mixer | |
| CN204704817U (en) | A kind of low nitrogen oxide gas burner | |
| CN105546532A (en) | Ultra-low-emission burner | |
| CN204901756U (en) | Partly mix low NOx burner in advance | |
| CN107543160A (en) | A kind of ultralow nitrogen gas burner | |
| CN109099425B (en) | Flue gas inner loop ultralow nitrogen combustor | |
| CN208859604U (en) | For gas fired-boiler smoke backflow internal-external double circulation low NO and gas fired-boiler | |
| CN203837024U (en) | Low swirl nozzle for gas turbine combustion chamber | |
| CN203784951U (en) | Injection commingler | |
| CN109631033A (en) | A kind of depth flue gas recirculation fuel oil low NOx combustion method and its device | |
| CN109539250A (en) | A kind of low NO and its built-in flue gas recycled introducing device | |
| CN205825009U (en) | Flameless combustion apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |