CN105465784A - Regenerative radiant tube burner with flue gas recirculation - Google Patents
Regenerative radiant tube burner with flue gas recirculation Download PDFInfo
- Publication number
- CN105465784A CN105465784A CN201610057053.6A CN201610057053A CN105465784A CN 105465784 A CN105465784 A CN 105465784A CN 201610057053 A CN201610057053 A CN 201610057053A CN 105465784 A CN105465784 A CN 105465784A
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- CN
- China
- Prior art keywords
- burner
- air
- radiant tube
- pipeline
- core
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/12—Radiant burners
- F23D14/125—Radiant burners heating a wall surface to incandescence
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/66—Preheating the combustion air or gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/005—Radiant burner heads
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Supply (AREA)
- Gas Burners (AREA)
Abstract
The invention discloses a regenerative radiant tube burner with flue gas recirculation. The regenerative radiant tube burner comprises a first burner body and a second burner body; the first burner body comprises a first regenerative body, a first burner core penetrating through the first regenerative body and a first air conduit located at the front end of the first burner core, one end of the first burner core is connected with a first gas pipeline, and the first air conduit is connected with a first air pipeline; the second burner body comprises a second regenerative body, a second burner core penetrating through the second regenerative body and a second air conduit located at the front end of the second burner core, one end of the second burner core is connected with a second gas pipeline, and the second air conduit is connected with a second air pipeline; the first air pipeline and the second air pipeline are mutually communicated to form a circulating pipeline which is provided with an air inlet and a flue gas outlet. By means of the regenerative radiant tube burner with flue gas recirculation, the oxygen content of burning supporting air can be decreased, the flame temperature during burning can be decreased, emission of NOx is greatly reduced, and pollution to the atmosphere in the burning process is reduced.
Description
Technical field
The present invention relates to a kind of radiation pipe burner tip, be specifically related to a kind of Regeneration type Radiant Tube Burner with smoke backflow.
Background technology
Just obtain application as far back as 19th-century regenerative combustion technology in mid-term, but due to its regenerator area occupied large, commutating period is long, complicated operation, is substituted gradually by other combustion technologies.Until the 1980s, the miniaturization of heat storage and commutating period shorten, and just make regenerative combustion technology obtain certain development.Its operation principle of regenerative combustion technology is: heat-accumulating burner is arranged in pairs, heat storage is utilized to make carrier, alternately heated by waste-gas heat, again the heat that heat storage stores is used for adding hot-air or combustion gas, heat storage periodically heats, heat release makes air or gas-preheating to high temperature, not only ensure that the continuity that burner hearth heats but also reach energy-conservation effect.But due to heat storage by combustion air or gas heating to high temperature, combustion flame temperature also can raise, and makes the NOx produced in combustion process also become many, strengthens the pollution caused atmospheric environment.
At present, due to the shortage of world energy sources and the non-renewable of the energy, in order to economize energy and reduction production cost, increasing stove starts to consider to use regenerative combustion technology.Owing to generally only adopting simple heat transfer technology in radiant tube combustion process, exhaust gas temperature is higher, and energy consumption is comparatively large, and energy-saving effect is poor.Therefore, how existing regenerative combustion technology is combined for the exhaust gas temperature reduced in radiant tube combustion process with radiant tube combustion technology, and how to reduce heat storage type combustion process NOx emission and become a Focal point and difficult point in heat accumulation type radiant tube combustion technology.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of scientific and reasonable for structure, effectively can reduce radiant tube exhaust gas temperature and reduce the Regeneration type Radiant Tube Burner being applied in the band smoke backflow on radiant tube of NOx emission.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of Regeneration type Radiant Tube Burner with smoke backflow, comprise first, second burner, two burners use the two ends being arranged on radiant tube respectively in pairs, described first, second nozzle structure is identical, described first burner comprises the first heat storage, through the first burner core of the first heat storage, be positioned at the first air conduit of the first burner core front end, one end of described first burner core is connected with the first gas pipeline, first air conduit is connected with the first air duct, described second burner comprises the second heat storage, through the second burner core of the second heat storage, be positioned at the second air conduit of the second burner core front end, one end of described second burner core is connected with the second gas pipeline, second air conduit is connected with the second air duct, first, be interconnected between second air duct composition circulating line, described circulating line is provided with air intake and exhanst gas outlet.
In the present invention, described circulating line is provided with two place's air intakes, and two place's air intakes lay respectively at the both sides of exhanst gas outlet, and often locating air intake, be provided with can by the injector of flue gas injection to heat storage.
In the present invention, connected by pipeline between described two place's air intakes and be provided with total air intake at middle part, between total air intake and two place's air intakes, being respectively equipped with first, second air shut-off valve.
In the present invention, be interconnected between first, second gas pipeline described, and middle part is provided with fuel gas inlet, between fuel gas inlet and the first gas pipeline, is provided with the first gas control valve, between fuel gas inlet and the second gas pipeline, be provided with the second gas control valve.
The invention has the beneficial effects as follows: radiant tube heat storage technology can improve combustion air preheat temperature greatly, and exhaust gas temperature is extremely low; Smoke backflow technology, can reduce the oxygen content in combustion air, and when making to burn, flame temperature reduces, and greatly reduces the discharge of NOx, reduces the pollution to air in combustion process.Burner of the present invention uses in pairs, be generally applied in need radiant tube to heat stove on, in heating process, in radiant tube, temperature homogeneity is good.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the present invention is further described:
Fig. 1 is the structural representation of the present embodiment;
Fig. 2 is the flow schematic diagram of the flue gas of the present embodiment, combustion gas, air.
Detailed description of the invention
Referring to figs. 1 through Fig. 2, a kind of Regeneration type Radiant Tube Burner with smoke backflow that the present embodiment provides, comprise first, second burner 1, 2, two burners use the two ends being arranged on radiant tube 3 respectively in pairs, described first, second burner 1, 2 structures are identical, described first burner 1 comprises the first heat storage 11, through the first burner core 12 of the first heat storage 11, be positioned at the first air conduit 13 of the first burner core 12 front end, one end of described first burner core 12 is connected with the first gas pipeline 14, first air conduit 13 is connected with the first air duct 15, described second burner 2 comprises the second heat storage 21, through the second burner core 22 of the second heat storage 21, be positioned at the second air conduit 23 of the second burner core 22 front end, one end of described second burner core 22 is connected with the second gas pipeline 24, second air conduit 23 is connected with the second air duct 25, first, second air duct 13, be interconnected between 23 composition circulating line 4, described circulating line 4 is provided with air intake 41 and exhanst gas outlet 42.Between described first burner core 12 and the first gas pipeline 14, being unidirectional conduction between the second burner core 22 and the second gas pipeline 24, is Bidirectional Conduction between the first air conduit 13 and the first air duct 15, between the second air conduit 23 and the second air duct 25.
As preferred embodiment, described circulating line 4 is provided with two place's air intakes 41, two place's air intakes 41 lay respectively at the both sides of exhanst gas outlet 42, often locating air intake 41, be provided with can by the injector 5 of flue gas injection to heat storage, and connected by pipeline between described two place's air intakes 41 and be provided with total air intake 6 at middle part, between total air intake 6 and two place's air intakes 41, being respectively equipped with first, second air shut-off valve 71,72.Further, be interconnected between first, second gas pipeline 14,24 described, and middle part is provided with fuel gas inlet 81, between fuel gas inlet 81 and the first gas pipeline 14, be provided with the first gas control valve 82, between fuel gas inlet 81 and the second gas pipeline 24, be provided with the second gas control valve 83.
Operation principle of the present invention: when one of them burner burns, another burner is discharged fume, and ceaselessly hockets, now work for the first burner 1, the second burner 2 discharges fume, when first burner 1 works, first gas control valve 82 is opened, the second gas control valve 83 is closed, first air shut-off valve 71 is opened, the second air shut-off valve 72 is closed, combustion air enters from total air intake 6 and sprays into from by the air intake 41 of injector 5 from the first burner 1 correspondence, then burns with combustion gas mixing, flue gas after burning is by second heat storage 21 of radiant tube 3 through the second burner 2, second air conduit 23 and the second air duct 25 are discharged, flue gas is when the second heat storage 21, heat absorb by the second heat storage 21, sprayed and can produce negative pressure because air enters injector 5 the partial fume injection of the second air duct 25 is come, burner is mixed into combustion air, all the other flue gases are discharged from exhanst gas outlet 42, mixed combustion air is through the first heat storage 11 and arrive the first air conduit 13 after absorbing the heat of the first heat storage 11, burn with combustion gas mixing.
The foregoing is only preferred embodiments of the present invention, as long as the technical scheme realizing the object of the invention with basic same approach all belongs within protection scope of the present invention.
Claims (4)
1. the Regeneration type Radiant Tube Burner with smoke backflow, comprise first, second burner (1, 2), two burners use the two ends being arranged on radiant tube (3) respectively in pairs, described first, second burner (1, 2) structure is identical, it is characterized in that: described first burner (1) comprises the first heat storage (11), through the first burner core (12) of the first heat storage (11), be positioned at first air conduit (13) of the first burner core (12) front end, one end of described first burner core (12) is connected with the first gas pipeline (14), first air conduit (13) is connected with the first air duct (15), described second burner (2) comprises the second heat storage (21), through the second burner core (22) of the second heat storage (21), be positioned at second air conduit (23) of the second burner core (22) front end, one end of described second burner core (22) is connected with the second gas pipeline (24), second air conduit (23) is connected with the second air duct (25), first, second air duct (13, 23) be interconnected between composition circulating line (4), described circulating line (4) is provided with air intake (41) and exhanst gas outlet (42).
2. a kind of Regeneration type Radiant Tube Burner with smoke backflow according to claim 1, it is characterized in that: described circulating line (4) is provided with two place's air intakes (41), two place's air intakes (41) lay respectively at the both sides of exhanst gas outlet (42), and often locating that air intake (41) is provided with can by the injector (5) of flue gas injection to heat storage.
3. a kind of Regeneration type Radiant Tube Burner with smoke backflow according to claim 2, it is characterized in that: connected by pipeline between described two place's air intakes (41) and be provided with total air intake (6) at middle part, between total air intake (6) and two place's air intakes (41), being respectively equipped with first, second air shut-off valve (71,72).
4. a kind of Regeneration type Radiant Tube Burner with smoke backflow according to claim 1 and 2, it is characterized in that: first, second gas pipeline described is interconnected between (14,24), and middle part is provided with fuel gas inlet (81), be provided with the first gas control valve (82) between fuel gas inlet (81) and the first gas pipeline (14), between fuel gas inlet (81) and the second gas pipeline (24), be provided with the second gas control valve (83).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610057053.6A CN105465784B (en) | 2016-01-26 | 2016-01-26 | A kind of Regeneration type Radiant Tube Burner with smoke backflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610057053.6A CN105465784B (en) | 2016-01-26 | 2016-01-26 | A kind of Regeneration type Radiant Tube Burner with smoke backflow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105465784A true CN105465784A (en) | 2016-04-06 |
| CN105465784B CN105465784B (en) | 2017-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610057053.6A Active CN105465784B (en) | 2016-01-26 | 2016-01-26 | A kind of Regeneration type Radiant Tube Burner with smoke backflow |
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| CN (1) | CN105465784B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678800A (en) * | 2016-12-29 | 2017-05-17 | 北京神雾环境能源科技集团股份有限公司 | Heat accumulating type radiant tube combustor, pyrolyzing furnace comprising same and control method |
| CN106678780A (en) * | 2016-12-29 | 2017-05-17 | 北京神雾环境能源科技集团股份有限公司 | Combustion device |
| CN107166959A (en) * | 2017-06-01 | 2017-09-15 | 无锡市必盛水处理剂有限公司 | A kind of kiln for producing sodium metasilicate |
| CN108224424A (en) * | 2016-12-14 | 2018-06-29 | 卡利欧玛股份公司 | Radiation item heating system |
| CN109253451A (en) * | 2017-07-13 | 2019-01-22 | 鞍钢股份有限公司 | Flue gas backflow phase-change heat radiation tube device |
| CN109307270A (en) * | 2018-11-04 | 2019-02-05 | 佛山市科皓燃烧设备制造有限公司 | A kind of inside smoke flows back low NOx self preheating burner |
| CN111425856A (en) * | 2020-04-03 | 2020-07-17 | 首钢智新迁安电磁材料有限公司 | Heat accumulating type radiant tube burner |
| CN114087608A (en) * | 2020-08-25 | 2022-02-25 | 宝山钢铁股份有限公司 | Radiant tube heating device with self-preheating type flue gas circulation |
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| JP2000199610A (en) * | 1998-12-28 | 2000-07-18 | Ottoo:Kk | LOW NOx RADIANT TUBE BURNER |
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| CN102345868A (en) * | 2011-10-17 | 2012-02-08 | 佛山市科皓燃烧设备制造有限公司 | Radiant tube heat exchanger with smoke backflow |
| CN205535815U (en) * | 2016-01-26 | 2016-08-31 | 佛山市科皓燃烧设备制造有限公司 | Take regenerative radiant tube nozzle of flue gas backward flow |
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2016
- 2016-01-26 CN CN201610057053.6A patent/CN105465784B/en active Active
Patent Citations (6)
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| JP2000199610A (en) * | 1998-12-28 | 2000-07-18 | Ottoo:Kk | LOW NOx RADIANT TUBE BURNER |
| CN2588212Y (en) * | 2002-12-31 | 2003-11-26 | 陆峥 | Heat storage type radiation pipe burner |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224424A (en) * | 2016-12-14 | 2018-06-29 | 卡利欧玛股份公司 | Radiation item heating system |
| CN106678800A (en) * | 2016-12-29 | 2017-05-17 | 北京神雾环境能源科技集团股份有限公司 | Heat accumulating type radiant tube combustor, pyrolyzing furnace comprising same and control method |
| CN106678780A (en) * | 2016-12-29 | 2017-05-17 | 北京神雾环境能源科技集团股份有限公司 | Combustion device |
| CN107166959A (en) * | 2017-06-01 | 2017-09-15 | 无锡市必盛水处理剂有限公司 | A kind of kiln for producing sodium metasilicate |
| CN109253451A (en) * | 2017-07-13 | 2019-01-22 | 鞍钢股份有限公司 | Flue gas backflow phase-change heat radiation tube device |
| CN109307270A (en) * | 2018-11-04 | 2019-02-05 | 佛山市科皓燃烧设备制造有限公司 | A kind of inside smoke flows back low NOx self preheating burner |
| CN109307270B (en) * | 2018-11-04 | 2023-09-12 | 佛山市科皓燃烧设备制造有限公司 | Low NOx self-preheating burner with internal flue gas backflow |
| CN111425856A (en) * | 2020-04-03 | 2020-07-17 | 首钢智新迁安电磁材料有限公司 | Heat accumulating type radiant tube burner |
| CN114087608A (en) * | 2020-08-25 | 2022-02-25 | 宝山钢铁股份有限公司 | Radiant tube heating device with self-preheating type flue gas circulation |
| CN114087608B (en) * | 2020-08-25 | 2023-09-12 | 宝山钢铁股份有限公司 | Radiant tube heating device with self-preheating type flue gas circulation |
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| CN105465784B (en) | 2017-10-31 |
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