CN206890518U - A kind of combustion gas low NO - Google Patents
A kind of combustion gas low NO Download PDFInfo
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- CN206890518U CN206890518U CN201720737808.7U CN201720737808U CN206890518U CN 206890518 U CN206890518 U CN 206890518U CN 201720737808 U CN201720737808 U CN 201720737808U CN 206890518 U CN206890518 U CN 206890518U
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- entrance
- nozzle
- flue gas
- burner
- fuel
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Abstract
The utility model discloses a kind of combustion gas low NO, including burner, the burner right-hand member is cylindric, burner right side periphery sets secondary fuel nozzle, flue gas recycled nozzle is set inside the secondary fuel nozzle, the flue gas recycled nozzle interior sets primary fuel nozzle, the primary fuel nozzle interior sets center wind duct, centre wind entrance is set above the burner left end, the centre wind entrance interpenetrates with center wind duct, primary fuel entrance is set on the right of the centre wind entrance, secondary fuel entrance is set on the right of the primary fuel entrance, flue gas recycled entrance is set on the right of the secondary fuel entrance, Secondary Air entrance is set on the right of the flue gas recycled entrance.Design realizes the unification of this pair of contradictory factors of low-temperature burning Yu flame stabilization, to reduce suppression to greatest extent and reduce NOx generation and discharge using multiple technologies such as flame segmentation, fuel staging and flue gas recirculations.
Description
Technical field
Technical field of burner is the utility model is related to, specially a kind of combustion gas low NO.
Background technology
At present, from the point of view of fuel gas chemically balances, combustion product more cleans than coal really, major pollutants
The discharge of grain thing is lower.But not really clean, in fact, fuel gas is only the reduction of fuel bound nitrogen on NOx abatement, we
Know the burning of fuel gas and need air high temperature causes the nitrogen in air also to be partially oxidized to be formed as combustion adjuvant
NOx, so as to be discharged into air.
Known fuel gas combustion equipment takes single low-NO_x combustion technology as suppression more and reduces NOx growing amount
Technological means.But the technology for reducing nitrogen oxides with reference to Theory of Combustion at present is varied, and multinomial low-NO_x combustion technology is had
Effect is incorporated into one, can to greatest extent suppress and reduce NOx generation and discharge, at present only a small number of outer burner enterprises of state
Such product can be provided.
Utility model content
In view of the shortcomings of the prior art, the utility model provides a kind of combustion gas low NO, and it is a variety of to solve synthesis
Technological means suppresses and reduces NOx growing amount to greatest extent.
To realize object above, the utility model is achieved by the following technical programs：A kind of combustion gas low NO,
Including burner, for the burner right-hand member to be cylindric, burner right side periphery sets secondary fuel nozzle, and described two
Secondary fuel nozzle inner sets flue gas recycled nozzle, and the flue gas recycled nozzle interior sets primary fuel nozzle, described
Primary fuel nozzle interior sets center wind duct, sets centre wind entrance above the burner left end, the centre wind enters
Mouth is interpenetrated with center wind duct, and primary fuel entrance, the primary fuel entrance right side are set on the right of the centre wind entrance
Side sets secondary fuel entrance, and flue gas recycled entrance, the flue gas recycled entrance are set on the right of the secondary fuel entrance
The right sets Secondary Air entrance.
Preferably, the secondary fuel nozzle is 8, is uniformly distributed in burner right side.
Preferably, the primary fuel nozzle and secondary fuel entrance interpenetrate.
Preferably, the flue gas recycled nozzle interpenetrates with primary fuel nozzle, primary fuel entrance.
Preferably, the flue gas recycled nozzle interpenetrates with Secondary Air entrance.
A kind of combustion gas low NO, possesses following beneficial effect：
Design realizes low-temperature burning and fire using multiple technologies such as flame segmentation, fuel staging and flue gas recirculations
Flame stablizes the unification of this pair of contradictory factors, to reduce suppression to greatest extent and reduce NOx generation and discharge.
Fuel gas sprays from primary fuel nozzle and secondary fuel nozzle respectively according to a certain percentage, and primary fuel is vertically
Sprayed at a high speed from each aperture, flame is divided into many single flammules, because flammule area of dissipation is big, flame peak value
Temperature reduces, and reduces thermal NO x generation；Secondary fuel is divided into two both axially and radially, multiple nozzles through combustion gas header
Direction sprays, and in the presence of outer second air (air stream), nozzle flame is each independent and mutually in succession, forms circumference stably
Flame rings；Fuel spatially caused two-stage distribution, reaches scattered and fractional combustion effect, reduces overall flame combustion temperature
Degree is horizontal so that the uniform temperature fields of burner outlet, greatly reduces thermal NO x generation.The recycling introduced simultaneously
Flue gas heat absorption reduces ignition temperature, reduces oxygen partial pressure, and this will weaken the process of oxygen and nitrogen generation thermal NO x, protect
Demonstrate,prove the suppression NOx generation atmosphere of hypoxemia low temperature.
Brief description of the drawings
Fig. 1 is external structure schematic diagram of the present utility model；
Fig. 2 is cross section structure diagram of the present utility model.
In figure, 1. primary fuel nozzles, 2. center wind ducts, 3. secondary fuel nozzles, 4. flue gas recycled nozzles, in 5.
Heart wind entrance, 6. primary fuel entrances, 7. secondary fuel entrances, 8. flue gas recycled entrances, 9. Secondary Air entrances, 10. burnings
Device.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-2 is referred to, the utility model provides a kind of technical scheme：The utility model is carried out below in conjunction with the accompanying drawings detailed
Describe in detail bright.
A kind of combustion gas low NO, including burner 10, the right-hand member of burner 10 is cylindric, and the burner 10 is right
End face periphery sets secondary fuel nozzle 3, and the inside of secondary fuel nozzle 3 sets flue gas recycled nozzle 4, the recycling
The inside of flue gas nozzle 4 sets primary fuel nozzle 1, and the inside of primary fuel nozzle 1 sets center wind duct 2, the burning
Centre wind entrance 5 is set above the left end of device 10, and the centre wind entrance 5 interpenetrates with center wind duct 2, and the centre wind enters
The right of mouth 5 sets primary fuel entrances 6, and described the right of primary fuel entrance 6 sets secondary fuel entrance 7, the secondary fuel
The right of entrance 7 sets flue gas recycled entrance 8, and described the right of flue gas recycled entrance 8 sets Secondary Air entrance 9.It is described secondary
Fuel nozzle 3 is 8, is uniformly distributed in the right side of burner 10.The primary fuel nozzle 1 and secondary fuel entrance 7 are mutual
Insertion.The flue gas recycled nozzle 4 interpenetrates with primary fuel nozzle 1, primary fuel entrance 6.The recycling cigarette
Gas jets 4 interpenetrate with Secondary Air entrance 9.
Primary fuel nozzle 1, being designed using circumferential multilayer stagger arrangement spray orifice, flame is divided into many single flammules,
Because flammule area of dissipation is big, flame peak temperature is reduced, and thermal NO x is reduced；
Center wind duct 2, is the installation site of burner igniting device, while is that igniting and primary fuel combustion air lead to
Road；
Secondary fuel nozzle 3, the nozzle that fuel gas is sprayed by multiple both directions both axially and radially forms, after catching fire
Nozzle flame is each independent and mutually in succession, forms stable circumferential flame rings；
Flue gas recycled nozzle 4, using uniform tangential slot type structure design, the flue gas recycled of low oxygen concentration tangentially rotates
Into area of combustion centre, while strengthening disturbance, flue gas recycled heat absorption reduces ignition temperature, reduces oxygen partial pressure, suppresses
And reduce thermal NO x generation；
Centre wind entrance 5, it is igniting and the combustion-supporting wind inlet of primary fuel；
Primary fuel entrance 6, it is primary fuel gas import；
Secondary fuel entrance 7, it is secondary fuel gas import；
Flue gas recycled entrance 8, using flue gas recirculating technique, introduce low oxygen concentration flue gas or oxygen depleted exhaust air (such as：
CO2 etc.) import, oxygen partial pressure is further reduced by the physical condition of its hypoxemia low temperature, weakens oxygen and nitrogen generation heat
Power type NOx process；
Secondary Air entrance 9, it is the combustion-supporting wind inlet of secondary fuel.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of combustion gas low NO, including burner (10), it is characterised in that：Burner (10) right-hand member is cylindric,
Burner (10) the right side periphery sets secondary fuel nozzle (3), and recycling is set inside the secondary fuel nozzle (3)
Flue gas nozzle (4), the flue gas recycled nozzle (4) is internal to set primary fuel nozzle (1), the primary fuel nozzle (1)
Inside sets center wind duct (2), and centre wind entrance (5), the centre wind entrance are set above burner (10) left end
(5) interpenetrated with center wind duct (2), primary fuel entrance (6) be set on the right of the centre wind entrance (5), it is described once
Secondary fuel entrance (7) is set on the right of fuel inlet (6), flue gas recycled entrance is set on the right of the secondary fuel entrance (7)
(8) Secondary Air entrance (9), is set on the right of the flue gas recycled entrance (8).
A kind of 2. combustion gas low NO according to claim 1, it is characterised in that：The secondary fuel nozzle (3) is 8
It is individual, it is uniformly distributed in burner (10) right side.
A kind of 3. combustion gas low NO according to claim 1, it is characterised in that：The primary fuel nozzle (1) and
Secondary fuel entrance (7) interpenetrates.
A kind of 4. combustion gas low NO according to claim 1, it is characterised in that：The flue gas recycled nozzle (4)
Interpenetrated with primary fuel nozzle (1), primary fuel entrance (6).
A kind of 5. combustion gas low NO according to claim 1, it is characterised in that：The flue gas recycled nozzle (4)
Interpenetrated with Secondary Air entrance (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720737808.7U CN206890518U (en) | 2017-06-23 | 2017-06-23 | A kind of combustion gas low NO |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720737808.7U CN206890518U (en) | 2017-06-23 | 2017-06-23 | A kind of combustion gas low NO |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206890518U true CN206890518U (en) | 2018-01-16 |
Family
ID=61316688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720737808.7U Active CN206890518U (en) | 2017-06-23 | 2017-06-23 | A kind of combustion gas low NO |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206890518U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109539250A (en) * | 2018-10-30 | 2019-03-29 | 西安交通大学 | A kind of low NO and its built-in flue gas recycled introducing device |
| CN116379431A (en) * | 2023-03-30 | 2023-07-04 | 武汉明正动力工程有限公司 | Four-in-one low-nitrogen combustor |
-
2017
- 2017-06-23 CN CN201720737808.7U patent/CN206890518U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109539250A (en) * | 2018-10-30 | 2019-03-29 | 西安交通大学 | A kind of low NO and its built-in flue gas recycled introducing device |
| CN109539250B (en) * | 2018-10-30 | 2019-12-24 | 西安交通大学 | Low-nitrogen burner and built-in recirculated flue gas introducing device thereof |
| CN116379431A (en) * | 2023-03-30 | 2023-07-04 | 武汉明正动力工程有限公司 | Four-in-one low-nitrogen combustor |
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200714 Address after: Room B4, 5 / F, lechuang space, Fengxi new town, Xixian new area, Xianyang City, Shaanxi Province 710000 Patentee after: Shaanxi Boyuan Energy Technology Co.,Ltd. Address before: 710075 Shaanxi city of Xi'an province high tech Zone Feng Hui Road No. 34 new Changan Plaza, room 21602 Patentee before: XI'AN BOTAI ENERGY SAVING AND ENVIRONMENTAL Co.,Ltd. |