CN205957179U - High -efficient helical fin self preheating -type nozzle - Google Patents
High -efficient helical fin self preheating -type nozzle Download PDFInfo
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- CN205957179U CN205957179U CN201620960099.4U CN201620960099U CN205957179U CN 205957179 U CN205957179 U CN 205957179U CN 201620960099 U CN201620960099 U CN 201620960099U CN 205957179 U CN205957179 U CN 205957179U
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- air
- helical fin
- heat exchanger
- pipe
- fin
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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
Abstract
The utility model provides a high -efficient helical fin self preheating -type nozzle, including the gas pipe, the air casing, the setting is at the air gate in the air casing outside, the gas vent, still include helical fin air conduit, spiral finned heat exchanger pipe, be provided with the air cavity in the air casing and feed through with the air gate, helical fin air conduit's fixed setting of front end feeds through in the air casing and with the air cavity, spiral finned heat exchanger pipe box connects surface and the front end setting at helical fin air conduit to feed through in the air casing and with the air cavity, spiral finned heat exchanger tube -surface has cup jointed the flue gas pipe, flue gas pipe and gas vent intercommunication, the setting of gas pipe one end is in helical fin air conduit and be connected with primary combustion chamber, primary combustion chamber's fixed the setting on the rear end of spiral finned heat exchanger pipe of the other end. The utility model discloses can improve the preheated air temperature effectively, improve the combustion efficiency of fuel, reduce NOx and discharge, energy saving, reduction cost.
Description
Technical field
The utility model is related to self preheating burner field, espespecially a kind of high-efficiency helical fin self preheating burner.
Background technology
The burner of existing industrial furnace or burner major part do not have pre-heating system, or air preheating temperature is not high, when
When combustion air enters combustion chamber, combustion air temperature is very low, needs to absorb substantial amounts of heat in combustion process, so that combustion gas
Burning insufficient not exclusively, the energy conversion of impact system and the overall thermal efficiency of industrial furnace, and the flame of burner
Temperature field is also uneven, badly influences the life-span of burner, and stack gas exit velocity is not high, and the flue-gas temperature of discharge is high, heat
Loss is big, and in flue gas, NOx and imperfect combustion C0 discharge capacity also increase, serious environment pollution and affect system work and
The personal safety of operating personnel.
Energy prices are gradually increasing now, and the proportion that energy cost accounts for is increasing, and improve equipment Mist heat recovering, carries
More aobvious necessity of the thermal efficiency of high burner.How to improve on the architecture basics of original normal burner, make most of flue gas
Heat is drained after passing to combustion air again, has put on the research schedule of people.
Content of the invention
For solving the above problems, the utility model provides one kind to effectively improve preheated air temperature, improves the combustion of fuel
Burn efficiency, reduce NOx emission, energy saving, the high-efficiency helical fin self preheating burner of minimizing cost.
For achieving the above object, the technical solution adopted in the utility model is：A kind of high-efficiency helical fin self-preheating type
Burner, including Gas Pipe, air cabinet, is arranged on air scoop outside air cabinet, exhaust outlet, also includes helical fin air
Conduit, spiral fin heat exchanger pipe, are provided with air cavity in air cabinet, described air cavity is connected with air scoop, spiral
The front end of fin air conduit is fixedly installed in air cabinet and is connected with air cavity, described spiral fin heat exchanger pipe box
Be connected on the surface of helical fin air conduit, the front end of spiral fin heat exchanger pipe be arranged in air cabinet and with air cavity
Connection, described spiral fin heat exchanger pipe surface is socketed with smoke tube, and smoke tube is connected with exhaust outlet, described Gas Pipe one
End is arranged in helical fin air conduit and is connected with primary zone, and the other end of described primary zone is fixedly installed on
On the rear end of spiral fin heat exchanger pipe, between primary zone and helical fin air conduit, form a circumferential weld gap.
The beneficial effects of the utility model are：The utility model passes through to arrange the helical fin that surface carries helical fin
Air conduit, spiral fin heat exchanger pipe, and Gas Pipe is arranged in helical fin air conduit, helical fin structure makes to help
The combustion air and discharge flue gas heat exchange area within burner sharply increases, and combustion air preheating temperature can reach 600-800
DEG C, the ratio burner energy-conservation 30 ~ 40% of common no air preheat, combustion thermal efficiency reaches more than 80%, therefore this helical fin structure
Preheated air temperature can substantially be improved, improve the efficiency of combustion of fuel, energy saving, minimizing cost；Using air classification
Combustion technology, that is, a part of combustion air is from air cavity entrance helical fin air conduit and from a circumferential weld gap entrance one
Burnt with combustion gas mixing in secondary combustion chamber, part combustion air forms secondary between primary zone and spiral fin heat exchanger pipe
Circumferential weld gap location sprays, and mixes with the flue gas of primary combustion Indoor Combustion ejection and carries out second-time burning again, becomes high-speed flame, at a high speed
Flame can be rolled up the flue gas around inhaling and participate in burning, can effectively reduce flame combustion temperature, thus reducing the generation of NOx.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the utility model specific embodiment schematic diagram；
Fig. 3 is another embodiment schematic diagram.
Drawing reference numeral explanation：1- Gas Pipe；11- combustion gas housing；2- air cabinet；21- air scoop；22- exhaust outlet；23-
Air cavity；3- helical fin air conduit；4- spiral fin heat exchanger pipe；5- smoke tube；6- primary zone；61- contracts
Mouth structure；7- radiant tube；8- burner hearth.
Specific embodiment
Refer to shown in Fig. 1-3, the utility model with regard to a kind of high-efficiency helical fin self preheating burner, including combustion gas
Pipe 1, air cabinet 2, the air scoop 21 being arranged on air cabinet 2 outside, exhaust outlet 22, also include helical fin air conduit 3,
Spiral fin heat exchanger pipe 4, is provided with air cavity 23 in air cabinet 2, described air cavity 23 is connected with air scoop 21, spiral shell
The front end of rotation fin air conduit 3 is fixedly installed in air cabinet 2 and is connected with air cavity 23, described helical fin heat exchange
Device pipe 4 is socketed in the surface of helical fin air conduit 3, and the front end of spiral fin heat exchanger pipe 4 is arranged in air cabinet 2 simultaneously
Connect with air cavity 23, described spiral fin heat exchanger pipe 4 surface is socketed with smoke tube 5, smoke tube 5 and exhaust outlet 22
Connection, described Gas Pipe 1 one end is arranged in helical fin air conduit 4 and is connected with primary zone 6, described primary combustion
The other end of room 6 is fixedly installed on the rear end of spiral fin heat exchanger pipe 4, primary zone 6 and helical fin air conduit 3
Between form a circumferential weld gap, it is outer and be fixed on air by combustion gas housing 11 that the other end of Gas Pipe 1 extends to air cabinet 2
The outside of housing 2.
Compared to existing technology, the utility model passes through to arrange the helical fin air conduit that surface carries helical fin
3rd, spiral fin heat exchanger pipe 4, and Gas Pipe 1 is arranged in helical fin air conduit 3, and helical fin structure makes combustion-supporting sky
The gas and discharge flue gas heat exchange area within burner sharply increases, and combustion air preheating temperature can reach 600-800 DEG C, than
Burner energy-conservation 30-40% of common no air preheat, combustion thermal efficiency reaches more than 80%, and therefore this helical fin structure can be maximum
Change ground and improve preheated air temperature, improve the efficiency of combustion of fuel, energy saving, minimizing cost；Using Researched of Air Staging Combustion Burning Pulverized Coal skill
Art, that is, a part of combustion air enter helical fin air conduit 3 entering from circumferential weld gap from air cavity 2 and once fire
Burn room 6 and combustion gas mixing burning, part combustion air forms secondary between primary zone 6 and spiral fin heat exchanger pipe 4
Circumferential weld gap location sprays, and mixes with the flue gas of primary combustion Indoor Combustion ejection and carries out second-time burning again, becomes high-speed flame, at a high speed
Flame can be rolled up the flue gas around inhaling and participate in burning, can effectively reduce flame combustion temperature, thus reducing the generation of NOx.
Specifically, described primary zone 6 is ceramic-lined chamber, described ceramic-lined chamber and spiral fin heat exchanger pipe 4
The one end connecting is throat structure 61, and the surface of described spiral fin heat exchanger pipe 4 rear end is provided with connecting hole, described once fires
The throat structure 61 burning room 6 is fixedly connected on connecting hole, is formed between described primary zone 6 throat structure 61 and connecting hole
Secondary circumferential weld gap.
Using such scheme, one end that primary zone 6 is connected with spiral fin heat exchanger pipe 4 is throat structure 61, can
Improve the jet velocity of the flue gas after burning in primary zone 6, then second-time burning forms high-speed flame, volume is inhaled around burner hearth 8
Flue gas participate in burning, flame combustion temperature can be effectively reduced, thus reducing the generation of NOx.
Specifically, also include radiant tube 7, described radiant tube 7 is fixedly connected on helical fin air conduit 3, helical fin
Tube Sheet of Heat Exchanger 4, the rear end of smoke tube 5.
Using such scheme, after flue gas entrance radiant tube 7 carries out radiant heat transfer, helical fin is imported to by smoke tube 5
Heat exchanger 4, flue gas be changed into cold flue gas after the combustion air of helical fin air conduit 3 carries out heat exchange, finally from
Exhaust outlet 22 is discharged.
Specifically, the material of described helical fin air conduit and 3 spiral fin heat exchanger pipes 4 is metal alloy or carbonization
Silicon.
Using such scheme, when helical fin air conduit 3 and spiral fin heat exchanger pipe 4 adopt metal alloy material
When, using temperature below 1000 DEG C；When using silicon carbide material being, using temperature more than 1000 DEG C.
Below by specific embodiment, the utility model is described in further detail.
Naked light directly heats embodiment（As shown in Figure 2）
1）Air cavity 23 within air scoop 21 air inlet housing 2 for the combustion air, a then combustion air part
Enter helical fin air conduit 3, in order to cooling protection Gas Pipe 1, prevent Gas Pipe 1 heat waste, be partly into helical fin
In heat exchanger 4, it is changed into high temperature combustion air after carrying out heat exchange with the flue gas outside spiral fin heat exchanger 4, high temperature helps
Via circumferential weld gap entrance primary zone 6, another part enters secondary circumferential weld gap to a combustion air part；
2）Combustion gas enters arrival primary zone 6 by Gas Pipe 1；
3）Combustion air after preheating enter once by circumferential weld gap entrance primary zone 6 and via Gas Pipe 1
Combustion gas in combustion chamber 6 forms primary combustion in primary zone 6；
4）The flue gas that primary combustion produces is sprayed by primary zone's 6 throat structure 61, enters with secondary circumferential weld gap
Secondary Air form second-time burning, air staged combustion technology in burner hearth 8, flame combustion temperature can be effectively reduced, thus
Reduce the generation of NOx；
5）Form high-speed flame in burner hearth 8, high-speed flame can be rolled up the flue gas around inhaling and participate in burning, fall after second-time burning
Low flame temperature, reduces the formation of NOx；
6）In burner hearth 8, flue gas imports to spiral fin heat exchanger 4 by smoke tube 5, flue gas with through helical fin air
The combustion air of conduit 3 is changed into cold flue gas after carrying out heat exchange, finally discharge from exhaust outlet 22.
Radiant tube indirectly heat embodiment（As shown in Figure 3）
1）Air cavity 23 within air scoop 21 air inlet housing 2 for the combustion air, a then combustion air part
Enter helical fin air conduit 3, in order to cooling protection Gas Pipe 1, prevent Gas Pipe 1 heat waste, be partly into helical fin
In heat exchanger 4, it is changed into high temperature combustion air after carrying out heat exchange with the flue gas outside spiral fin heat exchanger 4, high temperature helps
Via circumferential weld gap entrance primary zone 6, another part enters secondary circumferential weld gap to a combustion air part；
2）Combustion gas enters arrival primary zone 6 by Gas Pipe 1；
3）Combustion air after preheating enter once by circumferential weld gap entrance primary zone 6 and via Gas Pipe 1
Combustion gas in combustion chamber 6 forms primary combustion in primary zone 6；
4）The flue gas that primary combustion produces is sprayed by primary zone's 6 throat structure 61, enters with secondary circumferential weld gap
Secondary Air form second-time burning in radiant tube 7, and adapt to different types of radiant tube 7 such as I type, p-type, double-P type etc.
The use of radiant tube, air staged combustion technology can effectively reduce flame combustion temperature, thus reducing the generation of NOx；
5）Form high-speed flame in radiant tube, high-speed flame can be rolled up the flue gas around inhaling and participate in burning after second-time burning,
Reduce flame temperature, reduce the formation of NOx；
6）In radiant tube 7, flue gas imports to spiral fin heat exchanger 4 by smoke tube 5, and flue gas is empty with through helical fin
The combustion air of airway 3 is changed into cold flue gas after carrying out heat exchange, finally discharge from exhaust outlet 22.
Embodiment of above is only preferred embodiment of the present utility model to be described, not to the utility model
Scope be defined, on the premise of without departing from the utility model design spirit, this area ordinary skill technical staff to this
Various modifications and improvement that the technical scheme of utility model is made, all should fall into the guarantor that claims of the present utility model determine
In the range of shield.
Claims (5)
1. a kind of high-efficiency helical fin self preheating burner, including Gas Pipe, air cabinet, is arranged on outside air cabinet
Air scoop, exhaust outlet, it is characterised in that also including helical fin air conduit, spiral fin heat exchanger pipe, set in air cabinet
It is equipped with air cavity, described air cavity is connected with air scoop, and the front end of helical fin air conduit is fixedly installed on air shell
Connect in vivo and with air cavity, described spiral fin heat exchanger pipe box is connected on the surface of helical fin air conduit, spiral wing
The front end of piece Tube Sheet of Heat Exchanger is arranged in air cabinet and is connected with air cavity, described spiral fin heat exchanger pipe surface socket
There is smoke tube, smoke tube is connected with exhaust outlet, described Gas Pipe one end is arranged in helical fin air conduit and connects
Once combustion chamber, the other end of described primary zone is fixedly installed on the rear end of spiral fin heat exchanger pipe, once fires
Burn and between room and helical fin air conduit, form a circumferential weld gap.
2. high-efficiency helical fin self preheating burner according to claim 1 it is characterised in that described Gas Pipe another
One end is extended to outside air cabinet and is fixed on the outside of air cabinet by combustion gas housing.
3. high-efficiency helical fin self preheating burner according to claim 1 is it is characterised in that described primary zone
For ceramic-lined chamber, one end that shown ceramic-lined chamber is connected with spiral fin heat exchanger pipe is throat structure, described spiral wing
The surface of piece Tube Sheet of Heat Exchanger rear end is provided with connecting hole, and the throat structure of described primary zone is fixedly connected on connecting hole,
Form secondary circumferential weld gap between described primary zone throat structure and connecting hole.
4. high-efficiency helical fin self preheating burner according to claim 1 is it is characterised in that also include radiant tube,
Described radiant tube is fixedly connected on helical fin air conduit, spiral fin heat exchanger pipe, the rear end of smoke tube.
5. high-efficiency helical fin self preheating burner according to claim 1 is it is characterised in that described helical fin is empty
The material of airway and spiral fin heat exchanger pipe is metal alloy or carborundum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620960099.4U CN205957179U (en) | 2016-08-26 | 2016-08-26 | High -efficient helical fin self preheating -type nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620960099.4U CN205957179U (en) | 2016-08-26 | 2016-08-26 | High -efficient helical fin self preheating -type nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205957179U true CN205957179U (en) | 2017-02-15 |
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ID=57980922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620960099.4U Active CN205957179U (en) | 2016-08-26 | 2016-08-26 | High -efficient helical fin self preheating -type nozzle |
Country Status (1)
| Country | Link |
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| CN (1) | CN205957179U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196073A (en) * | 2016-08-26 | 2016-12-07 | 佛山市科皓燃烧设备制造有限公司 | High-efficiency helical fin self preheating burner |
| CN112815304A (en) * | 2020-12-31 | 2021-05-18 | 新兴铸管股份有限公司 | Combustion device and annealing furnace combustion system |
-
2016
- 2016-08-26 CN CN201620960099.4U patent/CN205957179U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196073A (en) * | 2016-08-26 | 2016-12-07 | 佛山市科皓燃烧设备制造有限公司 | High-efficiency helical fin self preheating burner |
| CN112815304A (en) * | 2020-12-31 | 2021-05-18 | 新兴铸管股份有限公司 | Combustion device and annealing furnace combustion system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |