CN205535815U - Take regenerative radiant tube nozzle of flue gas backward flow - Google Patents

Take regenerative radiant tube nozzle of flue gas backward flow Download PDF

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Publication number
CN205535815U
CN205535815U CN201620082657.1U CN201620082657U CN205535815U CN 205535815 U CN205535815 U CN 205535815U CN 201620082657 U CN201620082657 U CN 201620082657U CN 205535815 U CN205535815 U CN 205535815U
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CN
China
Prior art keywords
burner
air
radiant tube
gas
nozzle
Prior art date
Application number
CN201620082657.1U
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Chinese (zh)
Inventor
王建中
潘映沛
颜磊
Original Assignee
佛山市科皓燃烧设备制造有限公司
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Priority to CN201620082657.1U priority Critical patent/CN205535815U/en
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Publication of CN205535815U publication Critical patent/CN205535815U/en

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

The utility model discloses a take regenerative radiant tube nozzle of flue gas backward flow, including first, second nozzle, first nozzle includes first heat accumulator, pass the first nozzle core of first heat accumulator, lie in an air conduit of first nozzle core front end, the one end and the first gas pipe connection of first nozzle core, an air conduit and an air duct connect, the second nozzle includes the second heat accumulator, pass the second nozzle core of second heat accumulator, lie in the 2nd air conduit of second nozzle core front end, the one end of second nozzle core and second gas pipe connection, intercommunication component circulating line each other between the 2nd air conduit and the 2nd air duct connect, first, the 2nd air conduit, be equipped with air inlet and exhanst gas outlet on the circulating line. The utility model discloses can reduce the oxygen content among the combustion air for the flame temperature reduces during the burning, very big reduction NOx's emission, reduce to atmospheric pollution among the combustion processes.

Description

A kind of Regeneration type Radiant Tube Burner of band smoke backflow
Technical field
The utility model relates to a kind of radiation pipe burner tip, is specifically related to the Regeneration type Radiant Tube Burner of a kind of band smoke backflow.
Background technology
Just applied as far back as 19th-century regenerative combustion technology in mid-term, but owing to its regenerator area occupied is big, commutating period is long, operation complexity, gradually substituted by other combustion technologies.Until the 1980s, the miniaturization of heat storage and commutating period shorten, regenerative combustion technology is just made to 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, it is used for adding hot-air or combustion gas by the heat that heat storage stores again, heat storage periodically heats, heat release makes air or gas-preheating is to high temperature, not only ensure that continuity that burner hearth heats but also has reached energy-conservation effect.But due to heat storage by combustion air or gas heating to high temperature, combustion flame temperature also can raise so that the NOx produced in combustion process also becomes many, strengthen the pollution that atmospheric environment is caused.
At present, non-renewable due to the shortage of world energy sources and the energy, in order to save the energy and reduce production cost, increasing stove starts to consider to use regenerative combustion technology.Due to general only with simple heat transfer technology in radiant tube combustion process, exhaust gas temperature is higher, and energy consumption is relatively big, and energy-saving effect is poor.Therefore, how existing regenerative combustion technology is combined with radiant tube combustion technology for the exhaust gas temperature reduced in radiant tube combustion process, and how to reduce an emphasis and the difficult point that heat storage type combustion process NOx emission becomes in heat accumulation type radiant tube combustion technology.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provide a kind of scientific and reasonable for structure, can effectively reduce radiant tube exhaust gas temperature and reduce the Regeneration type Radiant Tube Burner applying band smoke backflow on radiant tube of NOx emission.
The utility model solves its technical problem and be the technical scheme is that
nullA kind of Regeneration type Radiant Tube Burner of band smoke backflow,Including first、Second burner,Two burners use the two ends being separately mounted to radiant tube in pairs,Described first、Second nozzle structure is identical,Described first burner includes the first heat storage、The first burner core through the first heat storage、It is 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 and the first air duct connect,Described second burner includes the second heat storage、The second burner core through the second heat storage、It is 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 and the second air duct connect,First、Be interconnected between second air duct composition circulating line,Described circulating line is provided with air intake and exhanst gas outlet.
In the utility model, described circulating line is provided with air intake at two, and at two, air intake lays respectively at the both sides of exhanst gas outlet, and often place's air intake is provided with can be by flue gas injection to the injector of heat storage.
In the utility model, connected by pipeline between air intake at described two and be provided with total air intake at middle part, at total air intake and two, between air intake, being respectively equipped with first, second air shut-off valve.
In the utility model, it is interconnected between described first, second gas pipeline, and middle part is provided with fuel gas inlet, it is provided with the first gas control valve between fuel gas inlet and the first gas pipeline, between fuel gas inlet and the second gas pipeline, is provided with the second gas control valve.
The beneficial effects of the utility model are: radiant tube heat storage technology can improve combustion air preheating temperature greatly, and exhaust gas temperature is extremely low;Smoke backflow technology, can reduce the oxygen content in combustion air so that during burning, flame temperature reduces, and greatly reduces the discharge of NOx, reduces the pollution to air in combustion process.Burner of the present utility model uses in pairs, is typically employed on the stove needing radiant tube to heat, and in heating process, in radiant tube, temperature homogeneity is good.
Accompanying drawing explanation
With embodiment, the utility model is further illustrated below in conjunction with the accompanying drawings:
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
nullReferring to figs. 1 through Fig. 2,The Regeneration type Radiant Tube Burner of a kind of band smoke backflow that the present embodiment is provided,Including first、Second burner 1、2,Two burners use the two ends being separately mounted to radiant tube 3 in pairs,Described first、Second burner 1、2 structures are identical,Described first burner 1 includes the first heat storage 11、The first burner core 12 through the first heat storage 11、It is 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 includes the second heat storage 21、The second burner core 22 through the second heat storage 21、It is 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.It is unidirectional conduction between described first burner core 12 and the first gas pipeline 14, 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 air intake 41 at two, at two, air intake 41 lays respectively at the both sides of exhanst gas outlet 42, often place's air intake 41 is provided with can be by flue gas injection to the injector 5 of heat storage, and connected and be provided with at middle part total air intake 6 at described two between air intake 41 by pipeline, at total air intake 6 and two, between air intake 41, be respectively equipped with first, second air shut-off valve 71,72.Further, it is interconnected between described first, second gas pipeline 14,24, and middle part is provided with fuel gas inlet 81, it is 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, is provided with the second gas control valve 83.
Operation principle of the present utility model: when one of them burner burns, another burner is discharged fume, the most alternately;Now work by the first burner 1, second burner 2 smoke evacuation as a example by, 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 the air intake 41 of the first burner 1 correspondence from by injector 5, then burns with combustion gas mixing;Flue gas after burning is discharged through second heat storage the 21, second air conduit 23 and second air duct 25 of the second burner 2 by radiant tube 3, flue gas is when the second heat storage 21, heat is absorbed by the second heat storage 21, negative pressure can be produced owing to air enters injector 5 injection the partial fume injection of the second air duct 25 was come, it is mixed into burner with combustion air, remaining flue gas is discharged from exhanst gas outlet 42, mixed combustion air through the first heat storage 11 and absorb the first heat storage 11 heat after arrive the first air conduit 13, with combustion gas mixing burn.
The foregoing is only preferred embodiments of the present utility model, as long as realizing within the technical scheme of the utility model purpose broadly falls into protection domain of the present utility model with essentially identical means.

Claims (4)

  1. null1. the Regeneration type Radiant Tube Burner of a band smoke backflow,Including first、Second burner (1、2),Two burners use the two ends being separately mounted to radiant tube (3) in pairs,Described first、Second burner (1、2) structure is identical,It is characterized in that: described first burner (1) includes the first heat storage (11)、The first burner core (12) through the first heat storage (11)、It is 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) includes the second heat storage (21)、The second burner core (22) through the second heat storage (21)、It is 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. The Regeneration type Radiant Tube Burner of a kind of band smoke backflow the most according to claim 1, it is characterized in that: described circulating line (4) is provided with air intake at two (41), at two, air intake (41) lays respectively at the both sides of exhanst gas outlet (42), and often locating that air intake (41) is provided with can be by flue gas injection to the injector (5) of heat storage.
  3. The Regeneration type Radiant Tube Burner of a kind of band smoke backflow the most according to claim 2, it is characterized in that: at described two, between air intake (41), connected and be provided with at middle part total air intake (6) by pipeline, at total air intake (6) and two, between air intake (41), be respectively equipped with first, second air shut-off valve (71,72).
  4. The Regeneration type Radiant Tube Burner of a kind of band smoke backflow the most according to claim 1 and 2, it is characterized in that: described first, second gas pipeline is interconnected between (14,24), and middle part is provided with fuel gas inlet (81), it is 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), is provided with the second gas control valve (83).
CN201620082657.1U 2016-01-26 2016-01-26 Take regenerative radiant tube nozzle of flue gas backward flow CN205535815U (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105465784A (en) * 2016-01-26 2016-04-06 佛山市科皓燃烧设备制造有限公司 Regenerative radiant tube burner with flue gas recirculation
CN106363161A (en) * 2016-11-21 2017-02-01 大连新瑞晨环保科技有限公司 Efficient ladle baking device
CN106482101A (en) * 2016-12-16 2017-03-08 北京神雾环境能源科技集团股份有限公司 A kind of combination type radiant tube combustion device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105465784A (en) * 2016-01-26 2016-04-06 佛山市科皓燃烧设备制造有限公司 Regenerative radiant tube burner with flue gas recirculation
CN106363161A (en) * 2016-11-21 2017-02-01 大连新瑞晨环保科技有限公司 Efficient ladle baking device
CN106482101A (en) * 2016-12-16 2017-03-08 北京神雾环境能源科技集团股份有限公司 A kind of combination type radiant tube combustion device

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