CN110332534A - A kind of novel low emission natural gas high combustion rate burner structure - Google Patents
A kind of novel low emission natural gas high combustion rate burner structure Download PDFInfo
- Publication number
- CN110332534A CN110332534A CN201910680120.3A CN201910680120A CN110332534A CN 110332534 A CN110332534 A CN 110332534A CN 201910680120 A CN201910680120 A CN 201910680120A CN 110332534 A CN110332534 A CN 110332534A
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- Prior art keywords
- natural gas
- burner
- combustion
- natural
- low emission
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Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 239000003345 natural gas Substances 0.000 title claims abstract description 49
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 47
- 239000007789 gas Substances 0.000 claims abstract description 8
- 239000000446 fuel Substances 0.000 abstract description 14
- 238000001816 cooling Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 239000008246 gaseous mixture Substances 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 30
- 238000010586 diagram Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- UHZZMRAGKVHANO-UHFFFAOYSA-M chlormequat chloride Chemical compound [Cl-].C[N+](C)(C)CCCl UHZZMRAGKVHANO-UHFFFAOYSA-M 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
Classifications
-
- 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
- F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
- F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
- F23D14/24—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion
-
- 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
- F23D14/26—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid with provision for a retention flame
-
- 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
-
- 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
- F23D14/62—Mixing devices; Mixing tubes
-
- 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
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/78—Cooling burner parts
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The present invention relates to natural gas clean combustion technique fields, provide a kind of low emission natural gas high combustion rate burner structure.The structure forms partly-premixed cross jet under burner special construction by natural gas channel and combustion-supporting gas channel.Fuel is set to reach equally distributed effect in the radial direction in burner; guarantee that the gaseous mixture of fuel and combustion air forms reasonable Flow Field Distribution at burner outlet; form uniform and stable combustion zone; it ensure that kiln temperature; reduce pollutant emission; meanwhile the design of internal cooling structure effectively protects burner, improves service life.
Description
Technical field
The present invention relates to natural gas clean combustion technique fields, especially provide a kind of novel low emission natural gas high combustion rate burner
Structure.
Background technique
Industrial furnace is a kind of important industrial production Thermal Equipment, be widely used in the roasting of material, drying, fusing,
The various production processes such as melting, heating and heat treatment.Traditional industry stove generallys use coal as fuel, in combustion can
Generate a large amount of nitrogen oxides (NOx), dust and SO2.As environmental requirement increasingly improves, industrial furnace is to NOx, dust and SO2
Emission request it is also increasingly stringent, natural gas etc. cleans fuel gas because it is with safe and efficient, easy to operate, low in recent years
The advantages that discharge, is widely used in industrial furnace production.But this kind of natural gas combustor still has in terms of controlling NOx emission
Very big improvement space.Therefore, the design of novel low NOx fuel gas burner structure is for tissue burning, reduction NOx object discharge
It is particularly important.
The generation of nitrogen oxides and temperature have close relationship, and the temperature of flame is higher, and the generation of nitrogen oxides is bigger, instead
?.By reasonable designed combustion device structure, part can be reduced on the basis of guaranteeing that combustion completion is reliable, efficient
The generation of high-temperature region is uniformly mixed natural gas and air, to inhibit the generation of NOx in combustion process to reduce the row of NOx
High-volume.The gas burner being related in patent " CN203586205 " is improved in design concept and structure type
And promotion, but the requirement that discharge further decreases, while above-mentioned technology are unable to satisfy using " fuel-rich-extinguishing-lean combustion " technology
There are the limitations on burner installation space in the application of gas industry stove for scheme, limited to the adaptability of Industrial Stoves.
Summary of the invention
(1) technical problems to be solved
Existing natural gas Industrial Stoves generally use natural gas combustion nozzle and heat to kiln.It is empty to be limited by burner installation
Between, nozzle structure is typically more simple, and mostly uses diffusion combustion organizational form, and NOx discharge is big.Simultaneously as under burner
It is high to swim flame temperature, so that burner is easy to appear ablation phenomen, just needs to replace burner in a short time.
The present invention forms partial pre-mix lateral cross jet stream by the intake method of improvement fuel and combustion air, improves
The degree of mixing of low nitrogen burner, to reduce ignition temperature to realize nitrogen oxides emission reduction；Fuel is opened up inside stable flame pan simultaneously
Channel, reduces the temperature of burner end, to improve the service life of burner.
(2) technical solution
A kind of novel low emission natural gas high combustion rate burner structure provided by the invention, is led to by natural gas channel and combustion-supporting gas
Road is constituted；Natural gas Channel front end is connected with stable flame pan, is disposed with eddy flow conduit on the outside of stable flame pan, stable flame pan is the same as combustion air channel
The part of contact is provided with combustion air through-hole, and stable flame pan is provided with circumferential natural gas chamber, and natural gas channel, which is provided with, leads to natural air cavity
The natural stomata in the inside of room, natural gas chamber are provided with the natural stomata in outside for leading to eddy flow conduit.
Preferably, natural gas channel outer wall face is provided with natural stomata.
Preferably, the quantity of eddy flow conduit is 5~25.
Preferably, the cross sectional shape of eddy flow conduit is rectangle.
Preferably, the cross sectional shape of eddy flow conduit is trapezoidal.
Preferably, the eddy flow angle of eddy flow conduit is 20~70 degree
Preferably, the quantity of combustion air through-hole is 3~15.
Preferably, the diameter of combustion air through-hole is 1~10mm.
Preferably, the diameter of the natural stomata in inside is 0.5~8mm.
Preferably, the quantity of the natural stomata in inside is 3~15.
Preferably, the quantity of the natural stomata in outside is 5~25.
Preferably, the diameter of the natural stomata in outside is 0.5~8mm.
Preferably, the quantity of natural stomata is 3~15.
Preferably, the diameter of natural stomata is 0.5~10mm.
(3) beneficial effect
A kind of novel low emission natural gas high combustion rate burner structure provided by the invention, the technical solution pass through combustion air channel
It is designed with the cross jet in natural gas channel, so that combustion air is sufficiently mixed with fuel, improves combustion stability, improved
The stability of kiln temperature improves and fires quality.Meanwhile fuel channel and combustion air channel can be in burner progress
Portion is cooling, improves the service life of burner.The scheme for such as using stable flame pan end fuel arranged hole, it is cold can further to improve burner
But, the service life is improved.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of novel low emission natural gas high combustion rate burner structure of the embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of another section of novel low emission natural gas high combustion rate burner structure of the embodiment of the present invention；
Fig. 3 is the schematic diagram of the novel low emission natural gas high combustion rate burner structure of another kind of the embodiment of the present invention；
Fig. 4 is a kind of three-dimensional cutaway view of novel low emission natural gas high combustion rate burner structure of the embodiment of the present invention.
Appended drawing reference: 1, natural gas channel；2, combustion-supporting gas channel；3, stable flame pan；4, swirl channel；5, combustion air through-hole；
6, natural gas chamber；7, the natural stomata in inside；8, the natural stomata in outside；9, natural stomata.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
In the description of the present invention, unless otherwise indicated, the orientation or shape of the instructions such as term " on ", "lower", "left", "right"
State relationship is orientation based on the figure or state relation, is merely for convenience of description of the present invention and simplification of the description, rather than
The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is interpreted as limitation of the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connection " should be done
It broadly understood, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be directly connected,
It can also be indirectly connected through an intermediary.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
Referring to figs. 1 and 2, a kind of novel low emission natural gas high combustion rate burner structure provided by the invention, including day
Right gas channel 1 and combustion-supporting gas channel 2.Natural gas into natural gas channel 1 enters natural gas chamber by inner fuel hole 7
6, then sprayed by the natural stomata 8 in outside；Combustion air a part is sprayed by eddy flow conduit 4 with the natural stomata 8 in outside natural
Gas is mixed, and another part is sprayed by combustion air through-hole 5.Pass through being sufficiently mixed for this fuel and combustion air, Neng Gouwen
Determine flame, and maintain the temperature in kiln, guarantees to fire quality.
By the design of fuel channel and combustion-supporting air holes 5, the temperature of stable flame pan front bulkhead can be reduced, cooling burner is played
The effect on head increases the service life of burner.
Preferably, natural gas channel outer wall face is provided with natural stomata.
Preferably, the quantity of eddy flow conduit is 5~25.
Preferably, the cross sectional shape of eddy flow conduit is rectangle.
Preferably, the cross sectional shape of eddy flow conduit is trapezoidal.
Preferably, the eddy flow angle of eddy flow conduit is 20~70 degree
Preferably, the quantity of combustion air through-hole is 3~15.
Preferably, the diameter of combustion air through-hole is 1~10mm.
Preferably, the diameter of the natural stomata in inside is 0.5~8mm.
Preferably, the quantity of the natural stomata in inside is 3~15.
Preferably, the quantity of the natural stomata in outside is 5~25.
Preferably, the diameter of the natural stomata in outside is 0.5~8mm.
Preferably, the quantity of natural stomata is 3~15.
Preferably, the diameter of natural stomata is 0.5~10mm.
Working principle of the present invention is as follows:
Natural gas into internal natural gas channel 1 passes sequentially through inside, and naturally stomata 7, natural gas chamber, outside are natural
Stomata enters eddy flow conduit, mixes with the combustion air in combustion air channel 2.Pass through being sufficiently mixed for this fuel and combustion air, energy
Enough stable flame, and the temperature in kiln is maintained, guarantee to fire quality.
By the way that natural gas to be rationally uniformly distributed, the range of local high temperature zone is effectively reduced, inhibits the life of NOx
At.
Meanwhile the design of fuel channel and combustion air through-hole, it can effectively reinforce the cooling effect of burner, improve
The service life of burner.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and replacement can also be made, these are improved and replacement
Also it should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of novel low emission natural gas high combustion rate burner structure provided by the invention, by natural gas channel (1) and combustion-supporting gas
Channel (2) is constituted；Wherein natural gas channel (1) is connected in the same stable flame pan in front end (3), offers eddy flow on the outside of stable flame pan (3)
Conduit (4), which is characterized in that be provided with inside stable flame pan natural gas chamber (6), natural gas channel (1), which is provided with, leads to natural gas
The natural stomata in inside (7) of chamber (6), natural gas chamber (6) are provided with the natural stomata in outside (8) for leading to eddy flow conduit.
2. a kind of novel low emission natural gas high combustion rate burner structure according to claim 1, it is characterised in that the eddy flow
The cross sectional shape of conduit (4) is rectangle or trapezoidal.
3. a kind of novel low emission natural gas high combustion rate burner structure according to claim 1, which is characterized in that the eddy flow
The quantity of conduit (4) is 5~25.
4. a kind of novel low emission natural gas high combustion rate burner structure according to claim 1, which is characterized in that the eddy flow
The eddy flow angle of conduit (4) is 20~70 degree.
5. a kind of novel low emission natural gas high combustion rate burner structure according to claim 1, which is characterized in that outside is natural
The quantity of stomata (8) is 5~25.
6. a kind of novel low emission natural gas high combustion rate burner structure according to claim 1, which is characterized in that outside is natural
The diameter of stomata (8) is 0.5~8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910680120.3A CN110332534A (en) | 2019-07-26 | 2019-07-26 | A kind of novel low emission natural gas high combustion rate burner structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910680120.3A CN110332534A (en) | 2019-07-26 | 2019-07-26 | A kind of novel low emission natural gas high combustion rate burner structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110332534A true CN110332534A (en) | 2019-10-15 |
Family
ID=68147643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910680120.3A Pending CN110332534A (en) | 2019-07-26 | 2019-07-26 | A kind of novel low emission natural gas high combustion rate burner structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110332534A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05126323A (en) * | 1991-09-05 | 1993-05-21 | Takuma Co Ltd | Low nox gas burner |
| CN205939146U (en) * | 2016-08-26 | 2017-02-08 | 中能服能源科技股份有限公司 | Novel low NOx gas combustion ware |
| CN205939145U (en) * | 2016-08-26 | 2017-02-08 | 中能服能源科技股份有限公司 | Low NOx gas combustion ware structure |
| CN106642116A (en) * | 2016-12-09 | 2017-05-10 | 岳阳钟鼎热工电磁科技有限公司 | Ultralow NOx emission blue flame round gas burner |
| CN107763622A (en) * | 2017-11-14 | 2018-03-06 | 丁光学 | Kiln burner |
| CN108397772A (en) * | 2018-05-07 | 2018-08-14 | 上海全颉环境设备有限公司 | A kind of combustion head |
| CN108954305A (en) * | 2018-08-15 | 2018-12-07 | 山东中科天健环保科技有限公司 | A kind of novel hierarchical burning low nitrogen oxide burner structure |
| CN210511672U (en) * | 2019-07-26 | 2020-05-12 | 山东中科天健环保科技有限公司 | Novel low natural gas high-speed burner structure that discharges |
-
2019
- 2019-07-26 CN CN201910680120.3A patent/CN110332534A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05126323A (en) * | 1991-09-05 | 1993-05-21 | Takuma Co Ltd | Low nox gas burner |
| CN205939146U (en) * | 2016-08-26 | 2017-02-08 | 中能服能源科技股份有限公司 | Novel low NOx gas combustion ware |
| CN205939145U (en) * | 2016-08-26 | 2017-02-08 | 中能服能源科技股份有限公司 | Low NOx gas combustion ware structure |
| CN106642116A (en) * | 2016-12-09 | 2017-05-10 | 岳阳钟鼎热工电磁科技有限公司 | Ultralow NOx emission blue flame round gas burner |
| CN107763622A (en) * | 2017-11-14 | 2018-03-06 | 丁光学 | Kiln burner |
| CN108397772A (en) * | 2018-05-07 | 2018-08-14 | 上海全颉环境设备有限公司 | A kind of combustion head |
| CN108954305A (en) * | 2018-08-15 | 2018-12-07 | 山东中科天健环保科技有限公司 | A kind of novel hierarchical burning low nitrogen oxide burner structure |
| CN210511672U (en) * | 2019-07-26 | 2020-05-12 | 山东中科天健环保科技有限公司 | Novel low natural gas high-speed burner structure that discharges |
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