CN204534554U - Rotate burnt wind low nitrogen burning denitrating system - Google Patents
Rotate burnt wind low nitrogen burning denitrating system Download PDFInfo
- Publication number
- CN204534554U CN204534554U CN201520166994.4U CN201520166994U CN204534554U CN 204534554 U CN204534554 U CN 204534554U CN 201520166994 U CN201520166994 U CN 201520166994U CN 204534554 U CN204534554 U CN 204534554U
- Authority
- CN
- China
- Prior art keywords
- air
- flue gas
- boiler
- communicated
- gas outlet
- 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
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 17
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000003546 flue gas Substances 0.000 claims abstract description 39
- 239000007789 gas Substances 0.000 claims abstract description 33
- 238000002485 combustion reaction Methods 0.000 abstract description 21
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 15
- 239000000446 fuel Substances 0.000 abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 4
- 239000001301 oxygen Substances 0.000 abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
Abstract
The utility model provides a kind of rotation burnt wind low nitrogen burning denitrating system, comprises boiler, air preheater, deduster, air-introduced machine, air blast, booster fan and nozzle.The burned flue gas of a part is drawn to blower inlet from the gas outlet of air-introduced machine, thus reducing the content of oxygen in mixed flue gas, mixed flue gas sends into boiler, and fuel-rich material burns under the environment of anoxic, control the generation of high temperature, greatly reduce the generation of nitrogen oxide.Simultaneously, by booster fan, flue gas is sent into burner hearth with the form of high-speed jet from different azimuth from nozzle, the flue gas that burns and combustion product gases are rotated in burner hearth, make inner flue gas of the stove mix evenly, and extend the holdup time of flue gas in burner hearth, make the hydrocarbon compound of boiler upper strata not sufficient combustion be able to Thorough combustion, thus reach the effect of NO_x Reduction by Effective, and improve efficiency of combustion.
Description
Technical field
The utility model relates to environmental protection equipment, particularly relates to a kind of rotation burnt wind low nitrogen burning denitrating system.
Background technology
Along with society and expanding economy, law, the regulation of environmental protection are also more and more stricter, and the environmental consciousness of people is also more and more stronger.Now new fossil-fuel power plant atmospheric pollutant emission standard GB13223-2011, requires that exhaustion of nitrogen oxides from coal-fired boiler concentration limit is 100mg/Nm
3.
The group technology of nowadays conventional denitration technology mainly quadrangle tangential circle low NO, the denitration of SNCR SNCR method, the denitration of SCR selective catalytic reduction or multiple method of denitration.Quadrangle tangential circle low NO technology, comparatively large to boiler improvement, the engineering time is longer, and investment cost is high, and relates to a large amount of changes of pressure vessel conduit, therefore retrofit work more complicated and loaded down with trivial details.If rely on SNCR SNCR method denitration and the denitration of SCR selective catalytic reduction technology completely, then there is investment comparatively large, the shortcoming that operating cost is high.
Utility model content
Based on this, be necessary to provide a kind of cost lower, but effectively can reduce the rotation burnt wind low nitrogen burning denitrating system of oxynitrides content in combustion process.
A kind of rotation burnt wind low nitrogen burning denitrating system, comprising:
Boiler, its top is provided with exhanst gas outlet;
The air preheater be communicated with successively, deduster and air-introduced machine, the air inlet of described air preheater is communicated with described exhanst gas outlet;
Air blast, its air inlet is communicated with the gas outlet of described air-introduced machine, and to be mixed with flue gas by air, its gas outlet is communicated with by the bottom of primary air piping with described boiler, and described primary air piping is through described air preheater;
Booster fan, its air inlet is communicated with the gas outlet of described air-introduced machine; And
Around the nozzle that described boiler is arranged, described nozzle is arranged at described boiler one end near described exhanst gas outlet, and described nozzle is communicated with the gas outlet of described booster fan, to be sprayed in described boiler by flue gas.
Wherein in an embodiment, described primary air piping comprises Liang Ge branch, and Liang Ge branch lays respectively at the both sides of described boiler.
Wherein in an embodiment, also comprise secondary air channel, one end of described secondary air channel is communicated with one of them branch of described primary air piping, and the other end is communicated with the position of described boiler between described primary air piping with described nozzle.
Wherein in an embodiment, be provided with the first air door and the second air door between the gas outlet of described air blast and described air-introduced machine, the air inlet of described booster fan is communicated with the position between described first air door with described second air door.
Wherein in an embodiment, one end of described booster fan air inlet is also provided with the 3rd air door.
Wherein in an embodiment, described first air door, described second air door and described 3rd air door are MOD or manual air door.
Wherein in an embodiment, between described air preheater and described exhanst gas outlet, be also provided with economizer.
Above-mentioned rotation burnt wind low nitrogen burning denitrating system, the burned flue gas of a part is drawn to wind blower inlet from the gas outlet of air-introduced machine, thus reduce the content of oxygen in mixed flue gas, mixed flue gas is filled with boiler, fuel-rich material burns under the environment of anoxic, control the generation of high temperature, greatly reduce the generation of nitrogen oxide.Simultaneously, by booster fan, flue gas is sent into burner hearth with the form of high-speed jet from different azimuth from nozzle, the flue gas that burns and combustion product gases are rotated in burner hearth, make inner flue gas of the stove mix evenly, and extend the holdup time of flue gas in burner hearth, make the hydrocarbon compound of boiler upper strata not sufficient combustion be able to Thorough combustion, thus reach the effect of NO_x Reduction by Effective, and improve efficiency of combustion.
Accompanying drawing explanation
Fig. 1 is the structural representation rotating burnt wind low nitrogen burning denitrating system in the utility model preferred embodiment.
Detailed description of the invention
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.Preferred embodiment of the present utility model is given in accompanying drawing.But the utility model can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present utility model more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in description of the present utility model herein just in order to describe specific embodiment, is not intended to be restriction the utility model.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
Refer to Fig. 1, the rotation burnt wind low nitrogen burning denitrating system 100 in the utility model preferred embodiment comprises boiler 110, air preheater 120, deduster 130, air-introduced machine 140, air blast 150, booster fan 160 and nozzle (not shown).
Boiler 110 top is provided with exhanst gas outlet (not shown).Fuel is in the stove combustion of boiler 110, and the flue gas of generation is discharged through exhanst gas outlet.
Air preheater 120, deduster 130 and air-introduced machine 140 are communicated with successively.The air inlet of air preheater 120 is communicated with exhanst gas outlet.
The air inlet of air blast 150 is communicated with the gas outlet of air-introduced machine 140, to be mixed with flue gas by air.Its gas outlet is communicated with the bottom of boiler 110 by primary air piping 170, and primary air piping 170 is through air preheater 120.Fresh air is mixed with the flue gas produced that burns, the oxygen content in mixed flue gas can be effectively reduced.Mixed flue gas is through air preheater 120, and mixed flue gas heats by the heat that flue gas can be utilized to carry, and when mixed flue gas is reached in stove, has higher temperature, thus improves energy utilization rate.
In the present embodiment, primary air piping 170 comprises Liang Ge branch (figure does not mark), and Liang Ge branch lays respectively at the both sides of boiler 110.Therefore, Liang Ge branch can make air inlet more even, is conducive to full combustion of fuel.
The air inlet of booster fan 160 is communicated with the gas outlet of air-introduced machine 140.Nozzle is arranged around boiler 110, and nozzle is arranged at boiler 110 one end near exhanst gas outlet.Nozzle is communicated with the gas outlet of booster fan 160, to be sprayed in boiler 110 by flue gas.By booster fan 160, flue gas is sent into burner hearth with the form of high-speed jet from different azimuth from nozzle, the flue gas that burns and combustion product gases are rotated in burner hearth, make inner flue gas of the stove mix evenly, and extend the holdup time of flue gas in burner hearth, the hydrocarbon compound of boiler 110 upper strata not sufficient combustion is made to be able to Thorough combustion, thus reach the effect of NO_x Reduction by Effective, and improve efficiency of combustion.
In the present embodiment, rotate burnt wind low nitrogen burning denitrating system 100 and also comprise secondary air channel 180.One end of secondary air channel 180 is communicated with one of them branch of primary air piping 170, and the other end is communicated with the position between nozzle at primary air piping 170 with boiler 110.By the adjustment of air quantity, increase the cloth wind of secondary air, air stratification is blown into burner hearth, makes fuel-staged combustion, sufficient combustion.And center localized hyperthermia environment is adjusted, suppress the generation of high temperature nitrogen oxide.
In addition, secondary air channel 180 is provided with MOD, by MOD, can control the opening and closing of secondary air channel 180 and air quantity.
In the present embodiment, the first air door 101 and the second air door 102 is provided with between the gas outlet of air blast 150 and air-introduced machine 140.The air inlet of booster fan 160 is communicated with the position between the first air door 101 with the second air door 102.
Further, one end of booster fan 160 air inlet is also provided with the 3rd air door 103.Coordinated by the switch of the first air door 101, second air door 102 and the 3rd air door 103, thus realization regulates the flow direction of flue gas and flow.
In the present embodiment, the first air door 101, second air door 102 and the 3rd air door 103 are MOD or manual air door.
Above-mentioned rotation burnt wind low nitrogen burning denitrating system 100, the burned flue gas of a part is drawn to wind air blast 150 entrance from the gas outlet of air-introduced machine 140, thus reduce the content of oxygen in mixed flue gas, mixed flue gas is filled with boiler 110, fuel-rich material burns under the environment of anoxic, control the generation of high temperature, greatly reduce the generation of nitrogen oxide.Simultaneously, by booster fan 160, flue gas is sent into burner hearth with the form of high-speed jet from different azimuth from nozzle, the flue gas that burns and combustion product gases are rotated in burner hearth, make inner flue gas of the stove mix evenly, and extend the holdup time of flue gas in burner hearth, make the hydrocarbon compound of boiler 110 upper strata not sufficient combustion be able to Thorough combustion, thus reach the effect of NO_x Reduction by Effective, and improve efficiency of combustion.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (6)
1. rotate a burnt wind low nitrogen burning denitrating system, it is characterized in that, comprising:
Boiler, its top is provided with exhanst gas outlet;
The air preheater be communicated with successively, deduster and air-introduced machine, the air inlet of described air preheater is communicated with described exhanst gas outlet;
Air blast, its air inlet is communicated with the gas outlet of described air-introduced machine, and to be mixed with air by flue gas, its gas outlet is communicated with by the bottom of primary air piping with described boiler, and described primary air piping is through described air preheater;
Booster fan, its air inlet is communicated with the gas outlet of described air-introduced machine;
Around the nozzle that described boiler is arranged, described nozzle is arranged at described boiler one end near described exhanst gas outlet, and described nozzle is communicated with the gas outlet of described booster fan, to be sprayed in described boiler by flue gas.
2. rotation burnt wind low nitrogen burning denitrating system according to claim 1, it is characterized in that, described primary air piping comprises Liang Ge branch, and Liang Ge branch lays respectively at the both sides of described boiler.
3. rotation burnt wind low nitrogen burning denitrating system according to claim 2, it is characterized in that, also comprise secondary air channel, one end of described secondary air channel is communicated with one of them branch of described primary air piping, and the other end is communicated with the position of described boiler between described primary air piping with described nozzle.
4. rotation burnt wind low nitrogen burning denitrating system according to claim 1, it is characterized in that, be provided with the first air door and the second air door between the gas outlet of described air blast and described air-introduced machine, the air inlet of described booster fan is communicated with the position between described first air door with described second air door.
5. rotation burnt wind low nitrogen burning denitrating system according to claim 4, is characterized in that, one end of described booster fan air inlet is also provided with the 3rd air door.
6. rotation burnt wind low nitrogen burning denitrating system according to claim 5, is characterized in that, described first air door, described second air door and described 3rd air door are MOD or manual air door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520166994.4U CN204534554U (en) | 2015-03-24 | 2015-03-24 | Rotate burnt wind low nitrogen burning denitrating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520166994.4U CN204534554U (en) | 2015-03-24 | 2015-03-24 | Rotate burnt wind low nitrogen burning denitrating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204534554U true CN204534554U (en) | 2015-08-05 |
Family
ID=53748553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520166994.4U Expired - Fee Related CN204534554U (en) | 2015-03-24 | 2015-03-24 | Rotate burnt wind low nitrogen burning denitrating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204534554U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222138A (en) * | 2015-10-20 | 2016-01-06 | 浙江伟明环保股份有限公司 | A kind of garbage burning boiler secondary air system and Secondary Air operation method |
| CN105465789A (en) * | 2015-12-31 | 2016-04-06 | 重庆科技学院 | Dual-layer mechanical grate type garbage gasifying incinerator and dual-boiler power generation system thereof |
| CN106969346A (en) * | 2017-04-01 | 2017-07-21 | 山东英电环保科技有限公司 | A kind of denitrating flue gas humidity control system based on flue gas recirculating technique |
| CN107120631A (en) * | 2017-06-15 | 2017-09-01 | 董磊 | It is substantially reduced the oil burning boiler of nitrogen oxides generation |
-
2015
- 2015-03-24 CN CN201520166994.4U patent/CN204534554U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222138A (en) * | 2015-10-20 | 2016-01-06 | 浙江伟明环保股份有限公司 | A kind of garbage burning boiler secondary air system and Secondary Air operation method |
| CN105465789A (en) * | 2015-12-31 | 2016-04-06 | 重庆科技学院 | Dual-layer mechanical grate type garbage gasifying incinerator and dual-boiler power generation system thereof |
| CN105465789B (en) * | 2015-12-31 | 2017-07-11 | 重庆科技学院 | Double-deck stoker fired grate formula refuse gasification incinerator and its boiler power generation system |
| CN106969346A (en) * | 2017-04-01 | 2017-07-21 | 山东英电环保科技有限公司 | A kind of denitrating flue gas humidity control system based on flue gas recirculating technique |
| CN107120631A (en) * | 2017-06-15 | 2017-09-01 | 董磊 | It is substantially reduced the oil burning boiler of nitrogen oxides generation |
| CN107120631B (en) * | 2017-06-15 | 2022-12-16 | 河南焓之悦新材料有限公司 | Oil-fired boiler capable of sufficiently reducing nitrogen oxide |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103953921B (en) | Oxygen-enriched combustion boiler system and operation method thereof | |
| CN105135895B (en) | A kind of selective sintering flue gas segmented comprehensive processing technique | |
| CN204534554U (en) | Rotate burnt wind low nitrogen burning denitrating system | |
| CN104772014A (en) | Combined denitration device for flue gas of cement rotary kiln and denitration technology for flue gas | |
| CN111450681B (en) | Denitration, desulfurization and dust removal integrated system for supercritical carbon dioxide coal-fired boiler | |
| CN204395778U (en) | A kind of ultra-clean exhaust system for fluidized-bed combustion boiler | |
| CN104437082A (en) | Ultra-clean discharge system and method for fluidized bed boiler | |
| CN203823745U (en) | Oxygen-enriched combustion boiler system | |
| CN104764340A (en) | Flue gas circulation system and method for sintering machine flue gas recirculation denitration | |
| CN204619708U (en) | A kind of cement rotary kiln kiln gas combined denitration device | |
| CN106051769B (en) | A kind of new and effective ultra-low nitrogen volumetric combustion device | |
| CN106969641A (en) | One kind sintering flue gas decomposes bioxin desulphurization denitration recovery waste heat system and method from combustion-supporting | |
| CN105042575A (en) | Fuel and gas-fired boiler oxygen-enriched combustion smoke nearly-zero-emission power generation system | |
| CN102563687B (en) | Oxygen-enriched combustion system | |
| CN204987009U (en) | Wide in range high -efficient low NOx burner | |
| CN203731858U (en) | Novel kiln tail decomposing furnace device of cement clinker production line | |
| CN109578994B (en) | Low NOx combustion system of flue gas recirculation and hierarchical gasification of superfine buggy | |
| CN107883387A (en) | A kind of single heat storage type denitration burner | |
| CN202835358U (en) | Novel regenerative burner | |
| CN102588997B (en) | Oxygen enriched combustion system | |
| CN204534555U (en) | A kind of flue gas recirculation device for reducing NO_x formation | |
| CN204395745U (en) | A kind of clean exhaust system for fluidized-bed combustion boiler | |
| CN105169918A (en) | Method and system for reducing emission of nitrogen oxide in smoke of coking furnace | |
| CN210332225U (en) | Broken key denitration device of aluminum stone kiln | |
| CN205653394U (en) | Put out stove futilely and diffuse gas processing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. A2, No. A2, Jinhai Road, No. 128, Jinhai Road, Changsha City, Changsha Patentee after: HUNAN ZHENGMING ENVIRONMENTAL PROTECTION CO.,LTD. Address before: 410000 Hunan province Changsha Yuhua District, Zhaohui Road No. 500 Jin Xiang International Star City Kam Nga Court 16 building 507 room Patentee before: HUNAN ZHENGMING ENVIRONMENTAL ENGINEERING Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |