CN107036094A - Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head - Google Patents
Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head Download PDFInfo
- Publication number
- CN107036094A CN107036094A CN201710416516.8A CN201710416516A CN107036094A CN 107036094 A CN107036094 A CN 107036094A CN 201710416516 A CN201710416516 A CN 201710416516A CN 107036094 A CN107036094 A CN 107036094A
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- China
- Prior art keywords
- nitrogen oxide
- tai
- gas
- combustion head
- type low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 68
- 238000009792 diffusion process Methods 0.000 title claims abstract description 30
- 238000007599 discharging Methods 0.000 title claims abstract description 27
- 239000007789 gas Substances 0.000 claims abstract description 48
- 239000000567 combustion gas Substances 0.000 claims abstract description 19
- 238000009987 spinning Methods 0.000 claims abstract description 12
- 230000001427 coherent effect Effects 0.000 claims abstract description 4
- 238000010304 firing Methods 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000003467 diminishing effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical group [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 244000309464 bull Species 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007493 shaping process Methods 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
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
- F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
-
- 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
- F23D14/60—Devices for simultaneous control of gas and combustion air
-
- 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
- F23D14/70—Baffles or like flow-disturbing devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
A kind of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head, it includes being oriented to burner inner liner and with being oriented to the rotary flange that burner inner liner is connected, it is oriented to burner inner liner and is internally formed coherent air duct with rotary flange, air duct end is connected with the air interface of rotary flange；It is axially arranged with gas connection pipe along air duct in air duct, gas connection pipe one end is connected to the combustion gas interface of rotary flange bottom, and the other end, which is located at, to be oriented on the inside of burner inner liner end, and connects gas nozzle；Gas nozzle extends outward guiding burner inner liner, and in external diameter and the diminishing screw type of internal diameter；Gas nozzle inner sleeve is provided with circular ring path plate, and circular ring path plate is circumferentially spaced to be provided with the outside of some air holes, each air hole provided with raised spinning disk；Circular ring path plate is also equipped with ignition, and the firing tip of ignition is located in the middle part of gas nozzle.Boiler thermal output of the present invention is high, nitrogen oxide emission is low.
Description
Technical field
The present invention relates to a kind of combustion head, particularly a kind of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head.
Background technology
Gaseous fuel is a kind of more high-quality, efficient, cleaning boiler oil, its temperature of catching fire for coal-fired, fuel oil
Relatively low, flame propagation speed is spent, burning velocity is fast, is relatively easy to realize automatic gas transmission, mixing, combustion process, therefore
Had a wide range of applications in gas fired-boiler technical field.But traditional burner for gas boiler uses flaming combustion approach,
There is combustion gas, temperature distributing disproportionation is even so as to cause imperfect combustion product-nitrogen oxidation in poor, burner hearth with air mixed effect
The problem of content of thing is higher, not only the combustion heat is relatively low, and to the seriously polluted of air.
Traditional burner for gas boiler typically uses Metal Fibre Combustion mode, and is followed again using secondary flue gas
The measures such as ring, install complicated, manufacturing cost is high, boiler thermal output is relatively low.
The content of the invention
It is an object of the invention to provide a kind of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head, it installs simple,
Manufacturing cost is low, and boiler thermal output is high, and nitrogen oxide emission is low.
To achieve the above object, the present invention takes following technical scheme：
A kind of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head, it include be oriented to burner inner liner and with the guiding flame
The rotary flange of cylinder connection, the guiding burner inner liner is internally formed coherent air duct with the rotary flange, air duct end
End is connected with the air interface of the rotary flange；It is axially arranged with gas connection pipe along the air duct in the air duct, the combustion
Gas connecting tube one end is connected to the combustion gas interface of the rotary flange bottom, and the other end is located on the inside of the guiding burner inner liner end, and
Connect gas nozzle；The gas nozzle extends outward the guiding burner inner liner, and in external diameter and the diminishing spiral of internal diameter
Type；The gas nozzle inner sleeve is provided with circular ring path plate, and the circular ring path plate is circumferentially spaced to be provided with some air holes,
Provided with raised spinning disk on the outside of each air hole；The circular ring path plate is also equipped with ignition, the ignition
Firing tip is located in the middle part of the gas nozzle.
Further, the spinning disk makes the direction of the air hole identical with the hand of spiral of the gas nozzle.
Further, the stable flame pan of annular shape is additionally provided between the circular ring path plate and the gas nozzle.
Further, the gas connection pipe is provided with flow control valve.
Further, the air interface is provided with damper.
Further, the flow control valve and damper are connected to servo-control mechanism.
Further, the spinning disk connection pneumatic element, the pneumatic element can adjust the angle of the spinning disk.
Further, the gas nozzle is provided with flame monitor.
A kind of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head, including multiple above-mentioned combustion heads, each combustion head
Combustion gas interface be connected in parallel to Gas Pipe.
Further, multiple combustion heads arrange rectangular, annular, oval, rhombus or regular hexagon.
The beneficial effects of the invention are as follows：The principle that the present invention is mixed according to Tai Ji rotary motion, rotating Vortex formation negative and positive,
Design a kind of burning of eddy flow diffusion hybrid mode, reach the combustion head of low-nitrogen oxide discharging, be that one kind is adaptable to heat
Value is not less than 5000kcal/Nm3Combustion gas, covering different capacity scope realize that Automatic Control, load, air-fuel ratio are continuously adjusted
And safety interlocking burner, nitrogen oxides (NOx) discharge less than 30mg/Nm3Combustion head.Arranged with Now Domestic, the low nitrogen of outer main flow
Put combustion head to compare, the combustion head is mainly characterized by：Metal Fibre Combustion mode is not used, does not use secondary flue gas again yet
The measures such as circulation, carry out the nitrogen oxides (NO in installation and debugging, emission as general gas combustion headx) with regard to that can be less than
30mg/Nm3.This combustion head, is not only suitable for Lower heat value and is not less than 5000kcal/Nm3Combustion gas, can cover separate unit output
Power, by the way that multiple combustion heads are carried out into different modes combination, could be applicable to separate unit from 350kW~50400kW burner
The bigger burner of power output.There are following advantages on the whole：
1st, instant invention overcomes the shortcoming of the high excess air ratio of Metal Fibre Combustion, boiler is drastically increased
The thermal efficiency；
2nd, system complex, poor combustion stability and condensation aqueous corrosion for being brought instant invention overcomes secondary flue gas recycling etc.
Shortcoming, enormously simplify composition system, improve the stability, operability and maintainability of burning.
Brief description of the drawings
Fig. 1 is the front view of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head of the present invention.
Fig. 2 is the sectional view of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head of the present invention.
Fig. 3 is the upward view of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head of the present invention.
Fig. 4 is the left view of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head of the present invention.
Fig. 5 is the right view of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head of the present invention.
Fig. 6 is the schematic diagram of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head of the present invention.
Fig. 7 is the combustion gas diffusion effect figure of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head of the present invention.
Embodiment
Below by drawings and examples, the present invention will be further described.
As Figure 1-Figure 5, the present invention provides a kind of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head, and it includes
The rotary flange 2 for being oriented to the guiding burner inner liner 1 of shaping and being connected with the guiding burner inner liner 1 can be carried out to flame.
As shown in Fig. 2 the guiding burner inner liner 1 is internally formed coherent air duct 3 with the rotary flange 2, the air leads to
The end of road 3 is connected with the air interface 21 of the rotary flange 2.It is axially arranged with combustion gas along the air duct 3 in the air duct 3 to connect
Adapter 4, the one end of gas connection pipe 4 is connected to the combustion gas interface 22 of the bottom of rotary flange 2, and the other end is located at the guiding flame
On the inside of 1 end of cylinder, and connect gas nozzle 5.
As shown in Figure 1, Figure 2, Figure 4 shows, the gas nozzle 5 extends outward the guiding burner inner liner 1, and equal in external diameter and internal diameter
Diminishing screw type.The inner sleeve of gas nozzle 5 is provided with circular ring path plate 6, and the circular ring path plate 6 is circumferentially spaced
Provided with some air holes, raised spinning disk 61 is provided with the outside of each air hole.It is preferred that, the spinning disk 61 leads to the air
The direction in hole is identical with the hand of spiral of the gas nozzle 5.Circular ring path plate 6 is both the circulation feed path of air, again can be with
Fixed gas connection pipe 4.
As shown in Fig. 2 the circular ring path plate 6 is also equipped with ignition 7, the firing tip of the ignition 7 is located at
The middle part of gas nozzle 5, can light candlelight flame.The steady of annular shape is additionally provided between the circular ring path plate 6 and the gas nozzle 5
Flame disk 8.
The gas connection pipe 4 can set flow control valve, and the air interface 21 can set damper, and the flow is adjusted
Section valve and damper are connected to servo-control mechanism, and the gas nozzle 5 is provided with flame monitor, so, so that it may realize combustion
The continuous ratio regulation of automatically controlling during burning and burning load and air/fuel ratio.In addition, on the circular ring path plate 6 of the present invention
The angle (air-out direction) of spinning disk 61 can be adjusted by pneumatic element, and effect is held together with the bag for adjusting annular advection wind,
And then the shape and size of combustion flame can be efficiently controlled.If overhauled or maintained to combustion head, rotation can be passed through
Flange 2 is shaken out.
The principle of the present invention, as shown in Figure 6, Figure 7, center combustion gas under pressure, passes through the spiral of impingement gas nozzle 5
After ascending manner interface, uniform back taper high-speed rotational (three-dimensional) fuel gas layer of many interfaces spread to burner hearth, combustion-supporting sky are formed
Gas is cut through multiple spinning disks, is sprayed at a high speed with identical eddy flow direction, forms bull central hollow spiral ring air-flow post, two
Stock air-flow at different rates, identical rotation direction, uniform diffusion mixing is carried out at different interface, form classification, subregion quick
Mixing, reaches combustion gas and is sufficiently mixed.After mixed gas is ignited, in diverse location and aspect formation fractional combustion, deep or light combustion
Burn.And two strands of air-flows are rotated at a high speed with identical rotation direction, friction speed, the effect of middle stable flame pan 8 steady flame is added, central cavity is formed
Oval ball flame.So, due to fractional combustion and bias combustion, the mixing of uniform eddy flow is added, makes that burning is rapid, flame point
Scattered, uniformity of temperature profile, no high temperature dot aggregation, nitrogen oxides (NOx) generation be also considerably reduced.Pass through the control system pair configured
Gas flow and combustion air flow size are carried out after proportion adjustment, so that it may realize that payload is automatically controlled.
The combustion head of the present invention and current main flow low nitrogen type (surface combustion, flue gas recirculation) combustion head You Hen great areas
Not, it is mainly characterized by：First, center gas nozzle 5 is conical hollow spiral gas nozzle；Center combustion gas under pressure,
By hitting after nozzle spiral formula interface, the uniform back taper high-speed rotational (three of many interfaces spread to burner hearth is formed
Dimension) fuel gas layer；2nd, combustion air passage has multiple spinning disks 61 to be distributed on the plate of circular passage, and combustion air is through multiple eddy flows
Piece 61 is cut, and is sprayed at a high speed with identical eddy flow direction, forms bull central hollow spiral cylinder air-flow；3rd, in center convolution
Flame stable flame pan 8 is provided between gas nozzle 5 and air swirl piece 61, the formation central negative nip of stable flame pan 8 returns thermal current
Return, it is ensured that flame is continuous.
The Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head of the present invention, can be combined with multiple, each combustion
The combustion gas interface for burning head is connected in parallel to Gas Pipe.The multiple combustion heads arrange rectangular, annular, oval, rhombuses or just
Hexagon, forms different capacity, adapts to different burner hearth shape burners.
In summary, advantages of the present invention is as follows：
1) present invention is applied to burning Lower heat value not less than 5000kcal/Nm3All kinds of gaseous fuels (the liquefaction of (standard state)
Gas, natural gas, biogas).
2) series of products separate unit output power range of the present invention is generally 350kW~50400kW, can be made using bull combination
Separate unit burner power output reaches that 80000kW is even more big.
3) present invention can realize auto-programming control on the different type burner such as supporting integral type, split type, hot air type
System, load are automatically adjusted and automatic safe interlock.
4) comprehensive combustion efficiency of the present invention is not less than O in 99.3%, flue gas2≤ 4.0%, CO≤20mg/Nm3, NOx≤
30mg/Nm3。
5) combustion system of the present invention is strength rotational flow diffusion, mixed combustion, and no back draft danger occurs.
6) bag of the invention by adjusting annular advection wind at circular ring path plate, which holds together effect, can efficiently control combustion flame
Shape and size.
7) present invention can carry out multiple combustion heads the combination (rectangle, annular etc.) of different modes, form different capacity, fit
Answer different burner hearth shape burners.
The principle and its effect of the merely exemplary explanation present invention of above-described embodiment, not for the limitation present invention.The present invention
Also many aspects can be improved on the premise of without prejudice to overall thought, and any person skilled in the art all can be not
Under the spirit and scope for running counter to the present invention, modifications and changes are carried out to above-described embodiment.Therefore, have such as in art
All equivalent modifications or change that usually intellectual is completed under without departing from disclosed spirit and technological thought,
It should be covered by the claim of the present invention.
Claims (10)
1. a kind of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head, it is characterised in that it include being oriented to burner inner liner and with
The rotary flange of guiding burner inner liner connection, the guiding burner inner liner is internally formed coherent air duct with the rotary flange, should
Air duct end is connected with the air interface of the rotary flange；It is axially arranged with combustion gas along the air duct in the air duct to connect
Adapter, the gas connection pipe one end is connected to the combustion gas interface of the rotary flange bottom, and the other end is located at guiding burner inner liner end
End inner side, and connect gas nozzle；The gas nozzle extends outward the guiding burner inner liner, and is gradually contracted in external diameter and internal diameter
Small screw type；The gas nozzle inner sleeve is provided with circular ring path plate, and the circular ring path plate is circumferentially spaced provided with some
Provided with raised spinning disk on the outside of air hole, each air hole；The circular ring path plate is also equipped with ignition, the electronics
The firing tip of igniter is located in the middle part of the gas nozzle.
2. Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head according to claim 1, it is characterised in that：The rotation
Flow makes the direction of the air hole identical with the hand of spiral of the gas nozzle.
3. Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head according to claim 1 or 2, it is characterised in that：Institute
State the stable flame pan that annular shape is additionally provided between circular ring path plate and the gas nozzle.
4. Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head according to claim 3, it is characterised in that：The combustion
Gas connecting tube is provided with flow control valve.
5. Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head according to claim 4, it is characterised in that：The sky
Gas interface is provided with damper.
6. Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head according to claim 5, it is characterised in that：The stream
Adjustable valve and damper are connected to servo-control mechanism.
7. Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head according to claim 1, it is characterised in that：The combustion
Gas jets are provided with flame monitor.
8. Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head according to claim 1, it is characterised in that：The rotation
Flow connects pneumatic element, and the pneumatic element can adjust the angle of the spinning disk.
9. a kind of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head, it is characterised in that including multiple claims 1 to 8
Any one of combustion head, the combustion gas interface of each combustion head is connected in parallel to Gas Pipe.
10. Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head according to claim 9, it is characterised in that multiple
The combustion head arranges rectangular, annular, oval, rhombus or regular hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710416516.8A CN107036094A (en) | 2017-06-06 | 2017-06-06 | Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710416516.8A CN107036094A (en) | 2017-06-06 | 2017-06-06 | Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107036094A true CN107036094A (en) | 2017-08-11 |
Family
ID=59541430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710416516.8A Pending CN107036094A (en) | 2017-06-06 | 2017-06-06 | Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107036094A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686241A (en) * | 2019-09-11 | 2020-01-14 | 合肥众建翔新能源有限公司 | Combustor based on new forms of energy are energy-conserving |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH043802A (en) * | 1990-04-18 | 1992-01-08 | Hitachi Ltd | Low nox burner for boiler, low nox boiler and their operation |
| CN201724222U (en) * | 2009-11-26 | 2011-01-26 | 贵州航空发动机研究所 | Low NOx emission burning head for gas burner |
| CN105318328A (en) * | 2015-01-15 | 2016-02-10 | 上海凌云瑞升燃烧设备有限公司 | Internal circulation multi-flame low nitrogen oxide (NOX) fuel gas burner |
| CN205939138U (en) * | 2016-08-26 | 2017-02-08 | 中能服能源科技股份有限公司 | Low nitrogen oxide burner structure |
| CN106402861A (en) * | 2016-11-11 | 2017-02-15 | 江苏弗雷姆环境科技有限公司 | Industrial gas ultralow-nitrogen energy-saving spiral combustion head and combustor |
-
2017
- 2017-06-06 CN CN201710416516.8A patent/CN107036094A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH043802A (en) * | 1990-04-18 | 1992-01-08 | Hitachi Ltd | Low nox burner for boiler, low nox boiler and their operation |
| CN201724222U (en) * | 2009-11-26 | 2011-01-26 | 贵州航空发动机研究所 | Low NOx emission burning head for gas burner |
| CN105318328A (en) * | 2015-01-15 | 2016-02-10 | 上海凌云瑞升燃烧设备有限公司 | Internal circulation multi-flame low nitrogen oxide (NOX) fuel gas burner |
| CN205939138U (en) * | 2016-08-26 | 2017-02-08 | 中能服能源科技股份有限公司 | Low nitrogen oxide burner structure |
| CN106402861A (en) * | 2016-11-11 | 2017-02-15 | 江苏弗雷姆环境科技有限公司 | Industrial gas ultralow-nitrogen energy-saving spiral combustion head and combustor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686241A (en) * | 2019-09-11 | 2020-01-14 | 合肥众建翔新能源有限公司 | Combustor based on new forms of energy are energy-conserving |
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Effective date of abandoning: 20240308 |
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