CN205579705U - Oxygen boosting low NOx burner - Google Patents
Oxygen boosting low NOx burner Download PDFInfo
- Publication number
- CN205579705U CN205579705U CN201620265298.3U CN201620265298U CN205579705U CN 205579705 U CN205579705 U CN 205579705U CN 201620265298 U CN201620265298 U CN 201620265298U CN 205579705 U CN205579705 U CN 205579705U
- Authority
- CN
- China
- Prior art keywords
- bellows
- oxygen
- spout
- utility
- model
- 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 relates to an oxygen boosting low NOx burner, belong to combustor technical field, which has the advantages of simple structure, high durability and convenient use, high combustion efficiency, combustion stability is good, the oxygen boosting low NOx burner of flying dust has effectively been reduced, the technical scheme who adopts is for being provided with one time the tuber pipe in the bellows, the front end of a tuber pipe is provided with the wind spout one time, be provided with a plurality of perimeter wind spouts on the circumference of a wind spout, perimeter wind spout is linked together with bellows, the bellows top is provided with secondary wind box, the last secondary air register that is provided with of secondary wind box, the utility model discloses extensively be used for oxygen -enriched combustor.
Description
Technical field
This utility model relates to a kind of oxygen-enriched low NO, belongs to technical field of burner.
Background technology
Large-sized boiler is nearly all pulverized-coal fired boiler the most both at home and abroad, and coal dust firing is a typical oxidizing process, and in order to ensure that coal dust can fully burn, blower fan to be leaned on blasts substantial amounts of air, so will increase aerator power consumption, and increase station service；The wind simultaneously blasting burner hearth will take away substantial amounts of boiler heat from burner hearth discharge, thus reduce boiler efficiency；More seriously, if ature of coal is the poorest, after coal dust enters burner hearth, being difficult to ignition, substantial amounts of remaining charcoal burns in upper boiler, causes boiler tail overtemperature, is forced to spray desuperheating water more；The most also can increase boiler flyash carbon content, cause above-mentioned quadruple energy loss.
Utility model content
For solving the technical problem that prior art exists, this utility model provides a kind of simple in construction, and easy to use, efficiency of combustion is high, and combustion stability is good, effectively reduces the oxygen-enriched low NO of flying dust.
For achieving the above object, the technical scheme that this utility model is used is oxygen-enriched low NO, including bellows, it is provided with primary air piping in described bellows, the front end of described primary air piping is provided with First air spout, and the provided circumferentially about of described First air spout has multiple surrounding air spout, and described surrounding air spout is connected with bellows, described bellows top is provided with secondary air box, and described secondary air box is provided with secondary air register.
Preferably, it is provided with spoiler in described primary air piping.
Preferably, the described tapered structure of surrounding air spout.
Preferably, between described secondary air box and bellows, angle is 60 degree, and secondary air box and bellows are additionally provided with deflector.
Preferably, bottom described bellows, it is provided with access hole, access hole is provided with cover plate.
Compared with prior art, this utility model has following technical effect that this utility model simple in construction, easy to use, use and air-flow in burner is divided into dense fuel and lean fuel two strands, dense fuel concentration is big, ignition temperature is low, creating the breeze airflow being prone to catch fire, dense phase pulverized coal air-flow produces the flame of concentration after catching fire simultaneously, it is provided that the energy that dilute phase breeze airflow catches fire, both improve the stability caught fire, reduce again the phosphorus content in flying dust.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
As shown in Figure 1, oxygen-enriched low NO, including bellows 1, primary air piping 2 it is provided with in bellows 1, the front end of primary air piping 2 is provided with First air spout 3, and the provided circumferentially about of First air spout 3 has multiple surrounding air spout 4, and surrounding air spout 4 is connected with bellows 1, bellows 1 top is provided with secondary air box 5, and secondary air box 5 is provided with secondary air register 6.Being provided with spoiler 7 in primary air piping 2, spoiler can increase the mobility of coal dust in primary air piping, improves efficiency of combustion；The tapered structure of surrounding air spout 4, pyramidal structure can make secondary wind coal dust direct-injection flame kernel, and efficiency of combustion is higher；Between secondary air box 5 and bellows 1, angle is 60 degree, and secondary air box 5 and bellows 1 are additionally provided with deflector 8.Secondary air box uses this structure, and secondary wind can be made to carry out timely oxygen supply in being introduced into stove, and the flame making First air coal dust produce more is concentrated, and secondary wind coal dust subsequently enters and burns, and improves the stability caught fire, reduces again the phosphorus content in flying dust；It is provided with access hole 9 bottom bellows 1, access hole 9 is provided with cover plate 10, at any time bellows can be overhauled by access hole and clear up, it is ensured that burner safe operation.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, in the range of all should wrapping in this utility model.
Claims (5)
- The most oxygen-enriched low NO, it is characterized in that: include bellows, it is provided with primary air piping in described bellows, the front end of described primary air piping is provided with First air spout, the provided circumferentially about of described First air spout has multiple surrounding air spout, described surrounding air spout is connected with bellows, and described bellows top is provided with secondary air box, and described secondary air box is provided with secondary air register.
- Oxygen-enriched low NO the most according to claim 1, it is characterised in that: it is provided with spoiler in described primary air piping.
- Oxygen-enriched low NO the most according to claim 1, it is characterised in that: the described tapered structure of surrounding air spout.
- Oxygen-enriched low NO the most according to claim 1, it is characterised in that: between described secondary air box and bellows, angle is 60 degree, and secondary air box and bellows are additionally provided with deflector.
- Oxygen-enriched low NO the most according to claim 1, it is characterised in that: it is provided with access hole bottom described bellows, access hole is provided with cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620265298.3U CN205579705U (en) | 2016-04-01 | 2016-04-01 | Oxygen boosting low NOx burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620265298.3U CN205579705U (en) | 2016-04-01 | 2016-04-01 | Oxygen boosting low NOx burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205579705U true CN205579705U (en) | 2016-09-14 |
Family
ID=56863882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620265298.3U Active CN205579705U (en) | 2016-04-01 | 2016-04-01 | Oxygen boosting low NOx burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205579705U (en) |
-
2016
- 2016-04-01 CN CN201620265298.3U patent/CN205579705U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107606606B (en) | Central powder feeding omega-shaped industrial pulverized coal boiler adopting flue gas recirculation | |
| CN101949542A (en) | Three-layered secondary air low nitrogen oxide swirl burner | |
| CN104180368A (en) | Medium-and-low temperature hot fume powder feeding type coal powder combustion device and combustion process thereof | |
| CN104154532A (en) | Center air ring concentrated type turbulent burner | |
| CN103836620B (en) | Oxygen-enriched micro-oil staged combustion device | |
| CN203036634U (en) | Fractional combustion low-nitrogen oxide rotational flow burner | |
| CN205119800U (en) | Air classification formula low -nitrogen combustion tube heating furnace | |
| CN205579705U (en) | Oxygen boosting low NOx burner | |
| CN205690664U (en) | A kind of small-sized biomass boiler furnace structure | |
| CN105402723A (en) | Coal-fired power plant turbulent burner suitable for low-order mixed coal combustion | |
| CN204165042U (en) | Middle Low Temperature Thermal flue gas powder feeding coal powder burner | |
| CN205065700U (en) | Novel high -efficiency biological matter combustor | |
| CN203203247U (en) | Novel biomass-briquette-fired organic heat carrier boiler | |
| CN203384974U (en) | Industry gas burner ignition and burning stabilizing device | |
| CN102506423A (en) | Method for assisting in igniting low-volatile coal in burning by adding oxygen | |
| CN201662059U (en) | Horizontal type packaged chain grate biomass boiler | |
| CN205783077U (en) | Pulverized-coal fired boiler micro oil ignition system | |
| CN206669723U (en) | A kind of igniter and burner | |
| CN103672940A (en) | Method for reducing nitrogen oxide generated by combustion of boiler | |
| CN203162927U (en) | Coal-fired boiler | |
| CN105465771B (en) | A kind of thick coal gasifying burner of whirlwind | |
| CN205174429U (en) | Biomass briquette fuel flue -cured tobacco stove level four air inlet system | |
| CN204478029U (en) | A kind of low nitrogen burning for fire coal boiler reflux | |
| CN203533549U (en) | Micro-oil ignition and oxygen adding burner | |
| CN204513378U (en) | A kind of fuel-staged combustion low-NOx combustor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |