CN205825031U - A kind of new and effective ultra-low nitrogen body burner - Google Patents
A kind of new and effective ultra-low nitrogen body burner Download PDFInfo
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- CN205825031U CN205825031U CN201620794010.1U CN201620794010U CN205825031U CN 205825031 U CN205825031 U CN 205825031U CN 201620794010 U CN201620794010 U CN 201620794010U CN 205825031 U CN205825031 U CN 205825031U
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- air duct
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- eddy flow
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Abstract
The utility model discloses a kind of new and effective ultra-low nitrogen body burner, including air duct, outer central wind-tube, interior strong eddy flow air duct, burner box shell, some gaseous fuel spray guns and some secondary air Fuel lances outside air duct, center in burner box shell, center；In center, outside air duct, center, air duct, outer central wind-tube, interior strong eddy flow air duct and burner box shell are sequentially arranged from inside to outside, wherein, the outer centre wind region of annular hollow is formed between air duct and outer central wind-tube outside center, the interior strong Whirl deposite tank region of annular hollow is formed between outer central wind-tube and interior strong eddy flow air duct, the interior outer weak Whirl deposite tank region forming by force annular hollow between eddy flow air duct and burner box shell, this burner is capable of higher efficiency of combustion, reduce the discharge capacity of nitrogen oxides, and low cost.
Description
Technical field
This utility model belongs to ultralow nitrogen clean-burning technology field, relates to the burning of a kind of new and effective ultra-low nitrogen body
Device.
Background technology
In recent years, demand and the price of the energy the most constantly rise, and energy resource supply is relatively nervous, energy gap problem
Increasingly significant.Global Environmental Problems constantly highlights simultaneously, such as climate warming, acid rain and photochemical fog problem so that environment
Problem is increasingly subject to social concerns.At present, world energy sources supply depends on fossil energy, and burning is the master of its energy conversion
Wanting mode, the chemical energy of fuel is converted to heat energy by it, and the energy obtained by burning mineral fuel is accounted for world's gross energy and disappears
More than the 90% of consumption, energy-saving and emission-reduction arduous task.
Gaseous fuel has the features such as higher efficiency of combustion and low pollution emission, so gaseous fuel is as clean energy resource
It is widely used in industrial furnace (kiln) and the boiler of the industries such as electric power, chemical industry, metallurgy, building materials.And as the gas of its key equipment
Body burner, research constantly makes progress.But the research to it is concentrated mainly on the performance improvement aspect to burner.And to dirt
What dye thing control aspect was paid close attention to is also nowhere near.
Along with the enforcement of up-to-date " atmosphere pollutants emission standards " (GB13223-2011), to China's on January 1st, 2015
The NOx emission mass concentration of all of station boiler and Industrial Boiler controls standard and reduces to 100mg/m3(mark state, 3%O2), Beijing
Gas fired-boiler NOx emission mass concentration controls stricter.Depend merely on traditional gas burner and can not meet emission request.
Therefore it is badly in need of developing new and effective low NOx gas burner to meet up-to-date environmental protection standard.
At present, the research of gas burner increasingly by focus of attention, is found performance higher with expectation, is discharged lower combustion
Burner improves efficiency of combustion and burning pollutant discharge.Domestic scholars is concentrated mainly on combustion in the research of technical field of burner
Coal burner aspect, and the fewest for the research in terms of gas burner, and its technology and equipment relies primarily on import.Up-to-date ring
Protect discharge standard very strict, only have gas burner manufacturer such as German prestige rope, Italy hundred that several families are famous the most in the world
This standard that can reach must be waited, and its device structure is complicated, price is much more expensive.Increasingly strict along with environmental protection standard, combustion gas
Boiler energy-saving environmental transformation is extremely urgent, therefore, is badly in need of wanting a kind of high burning efficiency, low-nitrogen oxide discharging, lower-cost
Gas burner.
Utility model content
The purpose of this utility model is the shortcoming overcoming above-mentioned prior art, it is provided that a kind of new and effective ultra-low nitrogen
Body burner, this burner is capable of higher efficiency of combustion, reduces the discharge capacity of nitrogen oxides, and low cost.
For reaching above-mentioned purpose, new and effective ultra-low nitrogen body burner described in the utility model includes burner box
Air duct, outer central wind-tube, interior strong eddy flow air duct, burner box shell, some gaseous fuels outside air duct, center in shell, center
Spray gun and some secondary air Fuel lances；
In center, outside air duct, center, air duct, outer central wind-tube, interior strong eddy flow air duct and burner box shell be the most successively
Arranging, wherein, forming the outer centre wind region of annular hollow outside center between air duct and outer central wind-tube, outer central wind-tube is with interior
Form the interior strong Whirl deposite tank region of annular hollow between strong eddy flow air duct, between interior strong eddy flow air duct and burner box shell, form ring
The outer weak Whirl deposite tank region of shape hollow；
The side of burner box shell is provided with combustion air inlet, and combustion air inlet is divided into four tunnels, wherein the first via with
In center, air duct is connected, and the second tunnel is connected with outer centre wind region, and the 3rd tunnel is connected with interior strong Whirl deposite tank region, and the 4th
Road is connected with outer weak Whirl deposite tank region；
The outside of burner box shell is provided with combustion gas annular header, the entrance of a gaseous fuel spray gun and secondary air combustion
The entrance of material spray gun is connected with combustion gas annular header, the rifle head of a gaseous fuel spray gun and the rifle of secondary air Fuel lance
Head reaches outside outer weak Whirl deposite tank region through outer weak Whirl deposite tank region, the rifle end surface of a gaseous fuel spray gun and secondary gas
The rifle end surface of fluid fuel spray gun is ramp structure, the rifle end surface of a gaseous fuel spray gun towards air duct in center, two
The rifle end surface of secondary gaseous fuel spray gun is towards burner box shell；
It is provided with the end of air duct in annular gap, and center in center outside air duct and center between air duct to reach outside center
Outside air duct, one end of described annular gap is connected with combustion gas annular header, and in center, the side of air duct end is provided with for changing
Become the collar stop in the direction spraying combustion gas from the annular gap other end.
Institute once gaseous fuel spray gun and secondary air Fuel lance are distributed ringwise, and each gaseous fuel spray gun
It is interspersed with each secondary air Fuel lance.
The interior strong eddy flow tray of annular it is provided with in interior strong Whirl deposite tank region；
The outer weak eddy flow tray of annular it is provided with in outer weak Whirl deposite tank region.
Also include the first adjusting means of angle for regulating interior strong eddy flow tray Leaf and for regulating outer weak rotation
Second adjusting means of the angle of flow table Leaf.
Total air door it is provided with at combustion air inlet；
Ball valve it is provided with on air duct in center；
Outer centre wind air door it is provided with between combustion air inlet and outer centre wind region；
Outer weak Whirl deposite tank air door it is provided with between combustion air inlet and outer weak Whirl deposite tank region.
The rifle end surface of gaseous fuel spray gun is 40 ° of-50 ° of inclined-planes；
The rifle end surface of secondary air Fuel lance is 15-20 ° of inclined-plane.
The gaseous fuel direction after collar stop blocks of annular gap ejection and the output of outer centre wind region outer in
The direction of heart-wind syndrome is 50 °-80 °.
The number of gaseous fuel spray gun is 5 with the number of secondary air Fuel lance.
This utility model has the advantages that
New and effective ultra-low nitrogen body burner described in the utility model operationally, by air duct in center, outer in
Combustion air is divided into level Four by heart-wind syndrome region, interior strong Whirl deposite tank region and outer weak Whirl deposite tank region, is sprayed by a gaseous fuel
Gaseous fuel is divided into three grades by rifle, secondary air Fuel lance and annular gap, mixed combustion the most respectively, wherein, between annular
The outer centre wind that the center gas fuel of gap ejection exports with outer centre wind region matches, a gaseous fuel spray gun ejection
The interior strong Whirl deposite tank that gaseous fuel exports with interior strong Whirl deposite tank region matches, the secondary of secondary air Fuel lance ejection
The outer weak whirlwind that gaseous fuel exports with outer weak Whirl deposite tank region matches, so that gaseous fuel is the most mixed with combustion air
Close, it is achieved multi-level mixed combustion, improve the efficiency of combustion of gaseous fuel, reduce localized high temperature regions in stove, the most relatively low nitrogen
The discharge capacity of oxide, and structure is relatively simple, low cost.It addition, this utility model is by gaseous fuel, a secondary gas
Fluid fuel and respective Whirl deposite tank mixed combustion, form negative pressuren zone, thus roll up seat high ambient temperatures flue gas in central area, then passes through
Motive fluid fuel matches with interior centre wind and outer centre wind, reaches the purpose of stable burning.
Further, by regulation ball valve, outer centre wind air door and the aperture of outer weak Whirl deposite tank air door, the stream of wind at different levels is controlled
Amount, thus according to the size of boiler load, the change rational allocation air quantity of propellant composition, reach the clean-burning mesh of gaseous fuel
, motility is preferable.
Further, by the angle of strong eddy flow tray Leaf in the first adjusting means regulation, adjusted by the second adjusting means
The angle of the outer weak eddy flow tray Leaf of joint, thus regulate swirl strength, change the length of flame and flame profile, thus adapt to difference
Combustion space.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is sectional view of the present utility model；
Fig. 3 is the location diagram of air duct 10 outside airduct and center in center in this utility model；
Fig. 4 is the structural representation of a gaseous fuel spray gun 12 rifle head in this utility model；
Fig. 5 is the structural representation of secondary air Fuel lance 13 rifle head in this utility model.
Wherein, 1 it is combustion gas annular header, 2 is burner box shell, 3 is interior strong eddy flow air duct, 4 is outer central wind-tube, 5 is
In strong eddy flow tray, 6 be outer weak eddy flow tray, 7 be outer weak Whirl deposite tank air door, 8 be total air door, 9 be outer centre wind air door, centered by 10
Outer air duct, centered by 11 in air duct, 12 be gaseous fuel spray gun, 13 be secondary air Fuel lance, 14 be the second regulation
Device, 15 it is the first adjusting means.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in further detail:
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, new and effective ultra-low nitrogen body burner described in the utility model includes
Air duct 10 outside air duct 11, center in burner box shell 2, center, outer central wind-tube 4, interior strong eddy flow air duct 3, burner box shell 2,
Some gaseous fuel spray guns 12 and some secondary air Fuel lances 13, air duct 10 outside air duct 11, center in center, outer in
Heart-wind syndrome cylinder 4, interior strong eddy flow air duct 3 and burner box shell 2 are sequentially arranged from inside to outside, wherein, and air duct 10 and outer center outside center
Form the outer centre wind region of annular hollow between air duct 4, formed in annular between outer central wind-tube 4 and interior strong eddy flow air duct 3
Empty interior strong Whirl deposite tank region, forms the Wai Ruo Whirl deposite tank district of annular hollow between interior strong eddy flow air duct 3 and burner box shell 2
Territory；The side of burner box shell 2 is provided with combustion air inlet, and combustion air inlet is divided into four tunnels, the wherein first via and center
Interior air duct 11 is connected, and the second tunnel is connected with outer centre wind region, and the 3rd tunnel is connected with interior strong Whirl deposite tank region, the 4th tunnel
It is connected with outer weak Whirl deposite tank region；The outside of burner box shell 2 is provided with combustion gas annular header 1, a gaseous fuel spray gun
The entrance of 12 and the entrance of secondary air Fuel lance 13 are connected with combustion gas annular header 1, a gaseous fuel spray gun 12
The rifle head of rifle head and secondary air Fuel lance 13 reaches outside outer weak Whirl deposite tank region through outer weak Whirl deposite tank region, once gas
The rifle end surface of fluid fuel spray gun 12 and the rifle end surface of secondary air Fuel lance 13 are ramp structure, a gaseous fuel
The rifle end surface of spray gun 12 is towards air duct in center 11, and the rifle end surface of secondary air Fuel lance 13 is towards burner box shell 2；
It is provided with the end of air duct 11 in annular gap, and center in center outside air duct 11 and center between air duct 10 and reaches center exogenous wind
Cylinder 10 outside, one end of described annular gap is connected with combustion gas annular header 1, in center the side of air duct 11 end be provided with for
Change the collar stop in the direction spraying combustion gas from the annular gap other end.
It should be noted that institute once gaseous fuel spray gun 12 and secondary air Fuel lance 13 are distributed ringwise, and
Each gaseous fuel spray gun 12 is interspersed with each secondary air Fuel lance 13；It is provided with annular in interior strong Whirl deposite tank region
Interior strong eddy flow tray 5；The outer weak eddy flow tray 6 of annular it is provided with in outer weak Whirl deposite tank region；This utility model also includes for adjusting
Save the first adjusting means 15 of the angle of interior strong eddy flow tray 5 Leaf and for regulating the angle of outer weak eddy flow tray 6 Leaf
The second adjusting means 14；Total air door 8 it is provided with at combustion air inlet；It is provided with ball valve on air duct 11 in center；Combustion-supporting sky
Outer centre wind air door 9 it is provided with between gas entrance and outer centre wind region；Between combustion air inlet and outer weak Whirl deposite tank region
It is provided with outer weak Whirl deposite tank air door 7；The rifle end surface of gaseous fuel spray gun 12 is 40 ° of-50 ° of inclined-planes；Secondary air fuel
The rifle end surface of spray gun 13 is 15-20 ° of inclined-plane；The gaseous fuel of annular gap ejection direction after collar stop blocks is with outer
The direction of the outer centre wind of centre wind region output is 50 °-80 °；The number of gaseous fuel spray gun 12 fires with secondary air
The number of material spray gun 13 is 5.
Several the first gaseous fuel through holes, each first gas combustion is had on the rifle end surface of gaseous fuel spray gun 12
A material through hole gaseous fuel jets of composition, the gaseous fuel direction of a gaseous fuel jets ejection is a gaseous fuel spray
The normal orientation of rifle 12 rifle end surface, spaced apart many gaseous fuel spray guns 12 are circumferentially disposed so that one
The gaseous fuel that secondary gaseous fuel spray gun 12 ejects forms a concentric circular outside interior strong Whirl deposite tank region, and with interior strong rotation
Stream wind is in opposite direction, forms the cooperation that liquidates.
Several the second gaseous fuel through holes composition secondary air is had on the rifle end surface of secondary air Fuel lance 13
Fuel nozzle ports, the normal direction that gaseous fuel direction is secondary air Fuel lance 13 rifle end surface of secondary air fuel nozzle ports ejection
Direction, spaced apart many secondary air Fuel lances 13 are circumferentially disposed so that the gaseous fuel ejected exists
A concentric circular is formed outside outer weak Whirl deposite tank region, and identical with outer weak Whirl deposite tank direction, form relative engagement.
In center, air duct 11 and air duct 10 outside center are arranged on the center of burner, the central gas of annular gap ejection
Outer center eolian 50 °～the 80 ° of angles that the injection direction of fluid fuel exports with outer centre wind region, gaseous fuel speed is far below
Front two-stage, and liquidate coordinate with the outer centre wind of outer centre wind region output, it is achieved low-load combustion-stabilizing.
This utility model reaches super admixture, to reach at utmost by gaseous fuel and combustion air multi-level hierarchical
Reduce the purpose of nitrogen oxides, simultaneously by regulate Load Regulation that gaseous fuel quantity at different levels, air quantity reach high, burner hearth and
Fuel tolerance, when concrete operations, this utility model is that the gas fired-boilers such as steam boiler, hot-water boiler and heating furnace are out of stock
Provide a kind of Economic Transformation technology path, in the case of not increasing SNCR, SCR device, just depend merely on burner just gas-fired boiler
Stove discharged nitrous oxides is reduced to 80mg/m3(mark state, 3%O2) below, meet up-to-date environmental protection standard requirement.
Claims (8)
1. a new and effective ultra-low nitrogen body burner, it is characterised in that include air duct in burner box shell (2), center
(11), air duct (10), outer central wind-tube (4), interior strong eddy flow air duct (3), burner box shell (2), some gas outside center
Fuel lance (12) and some secondary air Fuel lances (13)；
Air duct (10), outer central wind-tube (4), interior strong eddy flow air duct (3) and burner box shell outside air duct (11), center in center
(2) be sequentially arranged from inside to outside, wherein, formed between air duct (10) and outer central wind-tube (4) outside center annular hollow outer in
Heart-wind syndrome region, forms the interior strong Whirl deposite tank region of annular hollow, the most by force between outer central wind-tube (4) and interior strong eddy flow air duct (3)
The outer weak Whirl deposite tank region of annular hollow is formed between eddy flow air duct (3) and burner box shell (2)；
The side of burner box shell (2) is provided with combustion air inlet, and combustion air inlet is divided into four tunnels, wherein the first via with in
Intracardiac air duct (11) is connected, and the second tunnel is connected with outer centre wind region, and the 3rd tunnel is connected with interior strong Whirl deposite tank region, the
Four tunnels are connected with outer weak Whirl deposite tank region；
The outside of burner box shell (2) is provided with combustion gas annular header (1), the entrance of a gaseous fuel spray gun (12) and secondary
The entrance of gaseous fuel spray gun (13) is connected with combustion gas annular header (1), the rifle head and two of a gaseous fuel spray gun (12)
The rifle head of secondary gaseous fuel spray gun (13) reaches outside outer weak Whirl deposite tank region through outer weak Whirl deposite tank region, a gaseous fuel
The rifle end surface of spray gun (12) and the rifle end surface of secondary air Fuel lance (13) are ramp structure, a gaseous fuel spray
The rifle end surface of rifle (12) is towards air duct in center (11), and the rifle end surface of secondary air Fuel lance (13) is towards burner box
Shell (2)；
It is provided with the end of air duct (11) in annular gap, and center in center outside air duct (11) and center between air duct (10) to stretch out
Outside center, air duct (10) is outward, and one end of described annular gap is connected with combustion gas annular header (1), air duct (11) end in center
The side in portion is provided with the collar stop for changing the direction from the ejection combustion gas of the annular gap other end.
New and effective ultra-low nitrogen body burner the most according to claim 1, it is characterised in that institute's once gaseous fuel
Spray gun (12) and secondary air Fuel lance (13) are distributed ringwise, and each gaseous fuel spray gun (12) and each secondary air
Fuel lance (13) is interspersed.
New and effective ultra-low nitrogen body burner the most according to claim 1, it is characterised in that
The interior strong eddy flow tray (5) of annular it is provided with in interior strong Whirl deposite tank region；
The outer weak eddy flow tray (6) of annular it is provided with in outer weak Whirl deposite tank region.
New and effective ultra-low nitrogen body burner the most according to claim 3, it is characterised in that also include in regulating
First adjusting means (15) of the angle of strong eddy flow tray (5) Leaf and be used for regulating the angle of outer weak eddy flow tray (6) Leaf
Second adjusting means (14) of degree.
New and effective ultra-low nitrogen body burner the most according to claim 1, it is characterised in that set at combustion air inlet
It is equipped with total air door (8)；
It is provided with ball valve on air duct (11) in center；
Outer centre wind air door (9) it is provided with between combustion air inlet and outer centre wind region；
Outer weak Whirl deposite tank air door (7) it is provided with between combustion air inlet and outer weak Whirl deposite tank region.
New and effective ultra-low nitrogen body burner the most according to claim 1, it is characterised in that
The rifle end surface of gaseous fuel spray gun (12) is 40 ° of-50 ° of inclined-planes；
The rifle end surface of secondary air Fuel lance (13) is 15-20 ° of inclined-plane.
New and effective ultra-low nitrogen body burner the most according to claim 1, it is characterised in that the gas of annular gap ejection
Fluid fuel direction after collar stop blocks is 50 °-80 ° with the direction of the outer centre wind of outer centre wind region output.
New and effective ultra-low nitrogen body burner the most according to claim 1, it is characterised in that a gaseous fuel spray gun
(12) number is 5 with the number of secondary air Fuel lance (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620794010.1U CN205825031U (en) | 2016-07-26 | 2016-07-26 | A kind of new and effective ultra-low nitrogen body burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620794010.1U CN205825031U (en) | 2016-07-26 | 2016-07-26 | A kind of new and effective ultra-low nitrogen body burner |
Publications (1)
| Publication Number | Publication Date |
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| CN205825031U true CN205825031U (en) | 2016-12-21 |
Family
ID=57561103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620794010.1U Active CN205825031U (en) | 2016-07-26 | 2016-07-26 | A kind of new and effective ultra-low nitrogen body burner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051769A (en) * | 2016-07-26 | 2016-10-26 | 西安西热锅炉环保工程有限公司 | Novel high-efficiency ultralow-nitrogen gas burner |
| CN108518680A (en) * | 2018-05-31 | 2018-09-11 | 西安西热锅炉环保工程有限公司 | A kind of low nitrogen burner based on Z-type Fuel lance |
-
2016
- 2016-07-26 CN CN201620794010.1U patent/CN205825031U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051769A (en) * | 2016-07-26 | 2016-10-26 | 西安西热锅炉环保工程有限公司 | Novel high-efficiency ultralow-nitrogen gas burner |
| CN106051769B (en) * | 2016-07-26 | 2018-07-24 | 西安西热锅炉环保工程有限公司 | A kind of new and effective ultra-low nitrogen volumetric combustion device |
| CN108518680A (en) * | 2018-05-31 | 2018-09-11 | 西安西热锅炉环保工程有限公司 | A kind of low nitrogen burner based on Z-type Fuel lance |
| CN108518680B (en) * | 2018-05-31 | 2023-09-12 | 西安西热锅炉环保工程有限公司 | Low nitrogen gas combustor based on Z-type fuel spray gun |
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| C14 | Grant of patent or utility model | ||
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