CN207196495U - Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head and its parallel-connection structure - Google Patents
Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head and its parallel-connection structure Download PDFInfo
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- CN207196495U CN207196495U CN201720657521.3U CN201720657521U CN207196495U CN 207196495 U CN207196495 U CN 207196495U CN 201720657521 U CN201720657521 U CN 201720657521U CN 207196495 U CN207196495 U CN 207196495U
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- nitrogen oxide
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- combustion head
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Abstract
A kind of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head and its parallel-connection structure, it includes the rotary flange for being oriented to burner inner liner and being connected with being oriented to burner inner liner, it is oriented to burner inner liner and is internally formed coherent air duct with rotary flange, air duct end connects with the air interface of rotary flange；Air duct interior edge air duct is axially arranged with gas connection pipe, and gas connection pipe one end is connected to the combustion gas interface of rotary flange bottom, and the other end connects gas nozzle on the inside of guiding burner inner liner end；Gas nozzle extends outward guiding burner inner liner, and is 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 some air holes, and raised spinning disk is provided with the outside of each air hole；Circular ring path plate is also equipped with ignition, and the firing tip of ignition is located in the middle part of gas nozzle.The utility model boiler thermal output is high, nitrogen oxide emission is low.
Description
Technical field
A kind of combustion head is the utility model is related to, particularly a kind of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head
And its parallel-connection structure.
Background technology
Gaseous fuel is a kind of more high-quality, efficient, cleaning boiler oil for coal-fired, fuel oil, its temperature of catching fire
Spend relatively low, flame propagation speed, 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 is using flaming combustion approach,
Have that combustion gas and air mixed effect be poor, temperature distributing disproportionation is even so as to causing imperfect combustion product-nitrogen oxidation in burner hearth
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, installation is complicated, and manufacturing cost is high, and boiler thermal output is relatively low.
Utility model content
The purpose of this utility model is to provide a kind of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head and its parallel connection
Structure, it is installed simply, and manufacturing cost is low, and boiler thermal output is high, and nitrogen oxide emission is low.
To achieve the above object, the utility model 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 are internally formed coherent air duct with the rotary flange, air duct end
End connects with the air interface of the rotary flange；The air duct interior edge air duct is axially arranged with gas connection pipe, 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 is 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,
Raised spinning disk is provided with 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 parallel-connection structure of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head, including multiple above-mentioned burnings
Head, the combustion gas interface of each combustion head are connected in parallel to Gas Pipe.
Further, multiple combustion heads arrange rectangular, annular, oval, rhombus or regular hexagon.
The beneficial effects of the utility model are：The utility model forms negative and positive and mixed according to Tai Ji rotary motion, rotating Vortex
The principle of conjunction, design a kind of burning of eddy flow diffusion hybrid mode, reach the combustion head of low-nitrogen oxide discharging, be that one kind can
It is adapted to calorific value and is not less than 5000kcal/Nm3Combustion gas, covering different capacity scope realize Automatic Control, load, air-fuel ratio
Continuously adjust and safety interlocking burner, nitrogen oxides (NOx) discharge be less than 30mg/Nm3Combustion head.With Now Domestic, outside
The low-nitrogen discharged combustion head of main flow is compared, and the combustion head is mainly characterized by：Metal Fibre Combustion mode is not used, is not used yet
The measures such as secondary flue gas recycling, carry out installation and debugging as general gas combustion head, the nitrogen oxides (NO in emissionx)
With regard to 30mg/Nm can be less than3.This combustion head, not only it is suitable for Lower heat value and is not less than 5000kcal/Nm3Combustion gas, can cover
Separate unit power output, by the way that multiple combustion heads are carried out into different modes combination, can also fit from 350kW~50400kW burner
The burner bigger for separate unit power output.There are following advantages on the whole：
1st, the utility model overcomes the shortcomings that high excess air ratio of Metal Fibre Combustion, drastically increases
Boiler thermal output；
2nd, it is rotten to overcome system complex, poor combustion stability and condensed water that secondary flue gas recycling is brought for the utility model
The shortcomings of erosion, composition system is enormously simplify, improve the stability, operability and maintainability of burning.
Brief description of the drawings
Fig. 1 is the front view of the utility model Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head.
Fig. 2 is the sectional view of the utility model Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head.
Fig. 3 is the upward view of the utility model Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head.
Fig. 4 is the left view of the utility model Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head.
Fig. 5 is the right view of the utility model Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head.
Fig. 6 is the schematic diagram of the utility model Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head.
Embodiment
The utility model is described further below by drawings and examples.
As Figure 1-Figure 5, the utility model provides a kind of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head, it
Including the rotary flange 2 that can carry out being oriented to the guiding burner inner liner 1 of shaping and being connected with the guiding burner inner liner 1 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 connects with the air interface 21 of the rotary flange 2.The interior edge of air duct 3 air duct 3 is axially arranged with combustion gas company
Adapter 4, the one end of gas connection pipe 4 are connected to the combustion gas interface 22 of the bottom of rotary flange 2, and the other end is located at guiding fire
On the inside of the end of flame cylinder 1, 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.Preferably, 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 of automatically controlling during burning and burning load and air/fuel ratio is adjusted.In addition, circular ring path plate 6 of the present utility model
On the angle (air-out direction) of spinning disk 61 can be adjusted by pneumatic element, hold together to make to adjust the bag of annular advection wind
With, 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
Turned flange 2 is shaken out.
Principle of the present utility model, as shown in fig. 6, center combustion gas is under pressure, pass through the spiral of impingement gas nozzle 5
After ascending manner interface, uniform back taper high-speed rotational (three-dimensional) fuel gas layer of more 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, formation bull central hollow spiral ring air-flow post, and two
Stock air-flow at different rates, identical rotation direction, uniformly diffusion mixing is carried out at different interface, it is quick to form classification, subregion
Mixing, reaches combustion gas and is sufficiently mixed.After mixed gas is ignited, fractional combustion, deep or light combustion are formed in diverse location and aspect
Burn.And two strands of air-flows are rotated at a high speed with identical rotation direction, friction speed, acted on plus middle 8 steady flame of stable flame pan, form central cavity
Oval ball flame.So, due to fractional combustion and bias combustion, mixed plus uniform eddy flow, make that burning is rapid, flame point
Dissipate, uniformity of temperature profile, no high temperature dot aggregation, nitrogen oxides (NOx) generation be also considerably reduced.Pass through the control system pair configured
After gas flow and combustion air flow size carry out proportion adjustment, so that it may realize that payload automatically controls.
Combustion head of the present utility model nitrogen type low with current main flow (surface combustion, flue gas recirculation) combustion head has very big
Difference, it is mainly characterized by：First, center gas nozzle 5 is conical hollow spiral gas nozzle；Center combustion gas acts in pressure
Under, after hitting nozzle spiral formula interface, form the uniform back taper high-speed rotational of more interfaces spread to burner hearth
(three-dimensional) 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 rotations
Flow 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 spiral shell
Flame stable flame pan 8 is provided between rotation gas nozzle 5 and air swirl piece 61, stable flame pan 8 forms central negative nip, makes thermal current
Return, it is ensured that flame is continuous.
Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head of the present utility model, can be combined with multiple,
The combustion gas interface of each combustion head is connected in parallel to Gas Pipe.Multiple combustion heads arrange rectangular, annular, oval, rhombus
Or regular hexagon, form different capacity, adapt to different burner hearth shape burners.
In summary, it is as follows the advantages of the utility model：
1) the utility model is not less than 5000kcal/Nm suitable for burning Lower heat value3All kinds of gaseous fuels of (standard state)
(liquefied gas, natural gas, biogas).
2) the utility model series of products separate unit output power range is generally 350kW~50400kW, is combined using bull
Separate unit burner power output can be made to reach 80000kW even more big.
3) the utility model can realize auto-programming on the different type burner such as supporting integral type, split type, hot air type
Control, load automatically adjust and automatic safe interlock.
4) the utility model comprehensive combustion efficiency is not less than 99.3%, O in flue gas2≤ 4.0%, CO≤20mg/Nm3, NOx
≤30mg/Nm3。
5) the utility model combustion system is strength rotational flow diffusion, mixed combustion, and no back draft is dangerous to be occurred.
6) the utility model, which holds together effect by adjusting the bag of annular advection wind at circular ring path plate, can efficiently control burning
The shape and size of flame.
7) the utility model can carry out multiple combustion heads the combination (rectangle, annular etc.) of different modes, form different work(
Rate, adapt to different burner hearth shape burners.
The merely exemplary explanation of above-described embodiment principle of the present utility model and its effect are new not for this practicality is limited
Type.The utility model also has many aspects to be improved on the premise of without prejudice to overall thought, any to be familiar with this technology
Personage all modifications and changes can be carried out to above-described embodiment without prejudice under spirit and scope of the present utility model.Therefore, lift
All those of ordinary skill in the art are complete without departing from the spirit disclosed in the utility model and institute under technological thought
Into all equivalent modifications or change, should be covered by claim of the present utility model.
Claims (10)
- A kind of 1. Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head, it is characterised in that it include be oriented to burner inner liner and with The rotary flange of guiding burner inner liner connection, the guiding burner inner liner are internally formed coherent air duct with the rotary flange, should Air duct end connects with the air interface of the rotary flange；The air duct interior edge air duct is axially arranged with combustion gas company Adapter, the gas connection pipe one end are 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 Air hole, each air hole outside are provided with raised spinning disk；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 parallel-connection structure of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head, it is characterised in that including multiple power Profit requires the combustion head any one of 1 to 8, and the combustion gas interface of each combustion head is connected in parallel to Gas Pipe.
- 10. the parallel-connection structure of Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head according to claim 9, its feature It is, multiple combustion heads arrange rectangular, annular, oval, rhombus or regular hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720657521.3U CN207196495U (en) | 2017-06-06 | 2017-06-06 | Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head and its parallel-connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720657521.3U CN207196495U (en) | 2017-06-06 | 2017-06-06 | Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head and its parallel-connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207196495U true CN207196495U (en) | 2018-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720657521.3U Expired - Fee Related CN207196495U (en) | 2017-06-06 | 2017-06-06 | Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head and its parallel-connection structure |
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| Country | Link |
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| CN (1) | CN207196495U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165783A (en) * | 2021-12-14 | 2022-03-11 | 军事科学院系统工程研究院军需工程技术研究所 | Pressure atomization constant-power diesel burner suitable for complex environment and control method |
-
2017
- 2017-06-06 CN CN201720657521.3U patent/CN207196495U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165783A (en) * | 2021-12-14 | 2022-03-11 | 军事科学院系统工程研究院军需工程技术研究所 | Pressure atomization constant-power diesel burner suitable for complex environment and control method |
| CN114165783B (en) * | 2021-12-14 | 2022-07-19 | 军事科学院系统工程研究院军需工程技术研究所 | Pressure atomization constant-power diesel burner suitable for complex environment and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180406 Termination date: 20200606 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |