CN205425858U - Be applied to outer flue gas reflux unit of stove on industrial furnace - Google Patents
Be applied to outer flue gas reflux unit of stove on industrial furnace Download PDFInfo
- Publication number
- CN205425858U CN205425858U CN201620082901.4U CN201620082901U CN205425858U CN 205425858 U CN205425858 U CN 205425858U CN 201620082901 U CN201620082901 U CN 201620082901U CN 205425858 U CN205425858 U CN 205425858U
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- CN
- China
- Prior art keywords
- smoke
- flue gas
- air
- burner
- stove
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Abstract
The utility model discloses a be applied to outer flue gas reflux unit of stove on industrial furnace, including nozzle, the burning chamber of cover outside the nozzle, the burning is equipped with the export of discharging fume on the chamber, is connected with exhaust pipe in the export of discharging fume, the outside of nozzle is connected with gas pipeline, air conduit respectively, be connected with the circulating line between air conduit and the exhaust pipe, the one end of circulating line is connected at exhaust pipe's middle part, and the other end is connected in air conduit's entrance, air conduit's entrance still is equipped with the ejector that draws the flue gas directive nozzle. Combustion air infeeds from the air hose in, through the ejector, forms the negative pressure at ejector export front end, inhales partial flue gas, and combustion air gets into the nozzle together and participates in the burning with inhaleing after the flue gas mixes, the flue gas sneak into the oxygen content that reduces 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
Technical field
This utility model relates to a kind of smoke backflow technology, is specifically related to the outer smoke reflux device of a kind of stove being applied on industrial furnace.
Background technology
Haze is mainly made up of sulfur dioxide, nitrogen oxides and pellet.Haze has a strong impact on the respiratory system of people, and the disease mainly caused includes that respiratory tract disease, cerebrovascular disease, nasal cavity inflammation etc. are sick and plants.During haze weather, air pressure reduction, Inhalable Particulate abruptly increase, air flow property are poor, and noxious bacteria and virus, to slowing of around spreading, cause virus concentration in air to increase, and the risk of pathophoresis is the highest.More seriously, air pollution can also affect the fertility of the mankind and the health of infant.Haze weather all produces material impact to highway, railway, aviation, shipping, electric power system, crop growth etc. simultaneously.Mist, haze can cause air quality to decline, and influence ecological environment brings bigger harm to health.
Along with the aggravation of process of industrialization, at present, domestic air pollution is the most extremely serious, particularly northern area, and long haze weather has badly influenced living trip and the life and health safety of people.Owing in mankind's activity, the product of NOx becomes mainly fuel to produce when high-temp combustion, therefore, the urgent need to solve the problem that the NOx emission that industrial furnace produces in process of production has become as in combustion technology how is effectively reduced.
Summary of the invention
In order to overcome the deficiencies in the prior art, this utility model provide a kind of scientific and reasonable for structure, can effectively pathogenic fire reducing flame ignition temperature and reduce NOx emission apply the smoke reflux device outward of the stove on industrial furnace.
This utility model solves its technical problem and be the technical scheme is that
The outer smoke reflux device of a kind of stove being applied on industrial furnace, including burner, the combustion chamber covered on outside burner, described combustion chamber is provided with smoke evacuation outlet, the upper connection of smoke evacuation outlet has smoke discharging pipe, the outside of described burner is connected to gas pipeline, air line, it is connected between described air line and smoke discharging pipe and has circulating line, one end of described circulating line is connected to the middle part of smoke discharging pipe, the other end is connected to the porch of air line, and the porch of described air line is additionally provided with flue gas injection to the injector of burner.
In this utility model, described combustion chamber is positioned at a radial canal, the smoke evacuation outlet of described radial canal is positioned at the bottom of burner, it is provided with smoke backflow pipeline between outer wall and the inwall of radial canal of combustion chamber, smoke backflow pipeline communicates with smoke evacuation outlet, flue gas is discharged in smoke backflow pipeline from the top of combustion chamber, then discharges from smoke evacuation outlet.
In this utility model, described combustion chamber is positioned at burner hearth, and smoke evacuation outlet is positioned at the sidewall of burner hearth.
In this utility model, the porch of described air line connects air intake duct.
The beneficial effects of the utility model are: combustion air feeds in air hose, through injector, negative pressure is formed in injector outlet front end, suction part flue gas, combustion air enters burner together with after suction flue gas mixing and participates in burning, the oxygen content being mixed in reduction combustion air of flue gas so that flame temperature reduction during burning, greatly reduce the discharge of NOx, reduce the pollution to air in combustion process；Further, the negative pressure that this utility model uses injector to be formed drives flue gas to enter, scientific structure, ingenious.
Accompanying drawing explanation
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of embodiment one；
Fig. 2 is the flow schematic diagram of the flue gas of the present embodiment one, combustion gas, air；
Fig. 3 is the structural representation of embodiment two；
Fig. 4 is the flow schematic diagram of the flue gas of the present embodiment two, combustion gas, air.
Detailed description of the invention
nullEmbodiment one，Referring to figs. 1 through Fig. 2，The outer smoke reflux device of a kind of stove being applied on industrial furnace that the present embodiment is provided，Including burner 1、Cover on the combustion chamber 2 outside burner 1，Described combustion chamber 2 is provided with smoke evacuation outlet 3，Connect in smoke evacuation outlet 3 and have smoke discharging pipe 4，The outside of described burner 1 is connected to gas pipeline 5、Air line 6，It is connected between described air line 6 and smoke discharging pipe 4 and has circulating line 7，One end of described circulating line 7 is connected to the middle part of smoke discharging pipe 4，The other end is connected to the porch of air line 6，The porch of described air line 6 is additionally provided with flue gas injection to the injector 11 of burner 1，Combustion air feeds in air line 6，Through injector 11，Export front end at injector 11 and form negative pressure，Suction part flue gas，Combustion air enters burner 1 together with after suction flue gas mixing and participates in burning.In the present embodiment, described combustion chamber 2 is positioned at a radial canal 8, the smoke evacuation outlet 3 of described radial canal 8 is positioned at the bottom of burner 1, it is provided with smoke backflow pipeline 9 between outer wall and the inwall of radial canal 8 of combustion chamber 2, smoke backflow pipeline 9 communicates with smoke evacuation outlet 3, flue gas is discharged in smoke backflow pipeline 9 from the top of combustion chamber 2, then from smoke evacuation outlet 3 discharge, the porch of described air line 6 connects air intake duct 12.
The operation principle of the present embodiment: combustion air enters air line 6 by air intake duct 12, combustion air produces negative pressure when by injector 11, flue gas injection can be divided to come the part in circulating line 7, burner 1 is entered after incoming flue gas mixes with drawing at combustion air, the combustion air oxygen content of mixed flue gas is few, when making to burn, flame temperature reduces, and greatly reduces the discharge of NOx；After burning, the flue gas of generation is discharged in smoke backflow pipeline 9 by the top of combustion chamber 2 simultaneously, then from smoke evacuation outlet 3 discharge, removes partly by the flue gas of injection to air line, and remaining flue gas is discharged from smoke discharging pipe 4.
Embodiment two, with reference to Fig. 3 to Fig. 4, structure and the principle of the present embodiment are essentially identical with embodiment one, its difference is: described combustion chamber 2 is positioned at burner hearth 10, smoke evacuation outlet 3 is positioned at the sidewall of burner hearth 10, the flue gas produced during burning is by after burner hearth 10 inner loop, via smoke evacuation outlet 3 discharge.
The foregoing is only preferred embodiments of the present utility model, as long as realizing within the technical scheme of this utility model purpose broadly falls into protection domain of the present utility model with essentially identical means.
Claims (4)
1. the outer smoke reflux device of the stove being applied on industrial furnace, including burner (1), cover on burner (1) combustion chamber (2) outward, described combustion chamber (2) is provided with smoke evacuation outlet (3), the upper connection of smoke evacuation outlet (3) has smoke discharging pipe (4), it is characterized in that: the outside of described burner (1) is connected to gas pipeline (5), air line (6), it is connected between described air line (6) with smoke discharging pipe (4) and has circulating line (7), one end of described circulating line (7) is connected to the middle part of smoke discharging pipe (4), the other end is connected to the porch of air line (6), the porch of described air line (6) is additionally provided with flue gas injection to the injector (11) of burner (1).
The outer smoke reflux device of a kind of stove being applied on industrial furnace the most according to claim 1, it is characterized in that: described combustion chamber (2) is positioned at a radial canal (8), smoke evacuation outlet (3) of described radial canal (8) is positioned at the bottom of burner (1), it is provided with smoke backflow pipeline (9) between outer wall and the inwall of radial canal (8) of combustion chamber (2), smoke backflow pipeline (9) communicates with smoke evacuation outlet (3), flue gas is discharged in smoke backflow pipeline (9) from the top of combustion chamber (2), then discharges from smoke evacuation outlet (3).
The outer smoke reflux device of a kind of stove being applied on industrial furnace the most according to claim 1, it is characterised in that: described combustion chamber (2) is positioned at burner hearth (10), and smoke evacuation outlet (3) is positioned at the sidewall of burner hearth (10).
4. according to the outer smoke reflux device of a kind of stove being applied on industrial furnace described in claim 1,2 or 3, it is characterised in that: the porch of described air line (6) connects air intake duct (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620082901.4U CN205425858U (en) | 2016-01-26 | 2016-01-26 | Be applied to outer flue gas reflux unit of stove on industrial furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620082901.4U CN205425858U (en) | 2016-01-26 | 2016-01-26 | Be applied to outer flue gas reflux unit of stove on industrial furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205425858U true CN205425858U (en) | 2016-08-03 |
Family
ID=56539520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620082901.4U Withdrawn - After Issue CN205425858U (en) | 2016-01-26 | 2016-01-26 | Be applied to outer flue gas reflux unit of stove on industrial furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205425858U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486099A (en) * | 2016-01-26 | 2016-04-13 | 佛山市科皓燃烧设备制造有限公司 | Out-of-furnace flue gas backflow device applied to industrial furnace |
| CN108548179A (en) * | 2018-04-24 | 2018-09-18 | 东北大学 | One kind is from preheated burning formula directed radiation pipe heating device |
-
2016
- 2016-01-26 CN CN201620082901.4U patent/CN205425858U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486099A (en) * | 2016-01-26 | 2016-04-13 | 佛山市科皓燃烧设备制造有限公司 | Out-of-furnace flue gas backflow device applied to industrial furnace |
| CN108548179A (en) * | 2018-04-24 | 2018-09-18 | 东北大学 | One kind is from preheated burning formula directed radiation pipe heating device |
| CN108548179B (en) * | 2018-04-24 | 2019-06-04 | 东北大学 | One kind is from preheated burning formula directed radiation pipe heating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160803 Effective date of abandoning: 20171031 |
|
| AV01 | Patent right actively abandoned |