CN206094062U - Strong efflux combustor that revolves - Google Patents
Strong efflux combustor that revolves Download PDFInfo
- Publication number
- CN206094062U CN206094062U CN201620973541.7U CN201620973541U CN206094062U CN 206094062 U CN206094062 U CN 206094062U CN 201620973541 U CN201620973541 U CN 201620973541U CN 206094062 U CN206094062 U CN 206094062U
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- China
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- bluff body
- flame chamber
- steady flame
- strong
- ventilating duct
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Abstract
The utility model relates to a strong efflux combustor that revolves, its characterized in that: it includes ventilating duct, steady flame chamber, acceleration nozzle, revolves generating device and supply of fuel device by force, strong revolve generating device set up in in the ventilating duct, the strong exit end that revolves generating device with the inlet connection in steady flame chamber, the exit end in steady flame chamber with acceleration nozzle's inlet connection, supply of fuel device axle arrangement in strong revolving in generating device and the steady flame chamber, the supply of fuel device includes fuel spout soft breeze tube cell, the entrance point of fuel spout is worn out the airtight end of middle guide duct, the exit end of fuel spout passes strong revolve generating device and with steady flame chamber intercommunication, the wind tube cell along steady flame chamber axle arrangement and with fuel spout detachably connects, the airtight end of middle ventilating duct is worn out to the entrance point of wind tube cell through the fuel spout.
Description
Technical field
The utility model is related to a kind of strong swirl jet burner, belongs to industrial burning device technical field.
Background technology
The such as shortage of the non-renewable energy resources of coal, oil and natural gas, and discharge in use it is unburned
Hydrocarbon and oxynitrides heavy damage natural environment is use up, therefore high-efficiency cleaning is to solve using non-renewable resources
Existing energy shortage and the effective way of environmental pollution.In recent years, domestic industry boiler obtains the development of explosion type, using efficient
The Industrial Boiler of environmental protection replaces the policy guidance that traditional mediumand smallscale industrial boilers are China.Industrial Boiler compares station boiler, deposits
Fuel characteristic difference than it is larger, load regulation range is relatively wide the characteristics of, but at present the design of Industrial Boiler is substantially pin
To a certain specific fuel, when changing fuel characteristic or relatively low duty ratio, efficiency of combustion decline is there is, pollutant emission is high
Problem.
The content of the invention
For problem present in background technology, the purpose of this utility model is to provide one kind to improve fuel adaptation
Property and low stain, efficient strong swirl jet burner.
For achieving the above object, the utility model is employed the following technical solutions：It includes ventilating duct, steady flame chamber, accelerates spray
Mouth, strong rotation generating means and fuel supply device；The strong rotation generating means is arranged in the ventilating duct, and the strong rotation occurs
The port of export of device is connected with the entrance point in the steady flame chamber, the port of export in the steady flame chamber and the entrance point of the accelerating jet
Connection, the fuel supply device is axial arranged in the strong rotation generating means and the steady flame chamber；In the ventilating duct
Outside is provided with middle ventilating duct, and one end of the middle ventilating duct is tightly connected with the side wall in the steady flame chamber, and the other end is
Sealed end and leave spacing with the entrance point of the ventilating duct, the middle ventilating duct side wall near the steady flame chamber position
The airduct being connected with for introducing outside combustion air is put, the fuel supply device includes fuel nozzle ports and wind powder pipe, described
The entrance point of fuel nozzle ports passes the sealed end of the middle ventilating duct, and the port of export of the fuel nozzle ports is sent out through the strong rotation
Generating apparatus and connect with the steady flame chamber；The wind powder pipe is axial arranged and detachable with the fuel nozzle ports along the steady flame chamber
Ground connection, the entrance point of the wind powder pipe passes the sealed end of the middle ventilating duct by fuel nozzle ports.
The strong rotation generating means includes axial blade group and bluff body group, outside and the wind-guiding of the axial blade group
The inner side of cylinder is fastenedly connected, and is fastenedly connected on the outside of the inner side of the axial blade group and the bluff body group.
The bluff body group is connected in series by multiple bluff bodies, is threaded connection between each bluff body.
The axial blade group includes multiple axial blades, and the number of the axial blade is less than the number of the bluff body
Mesh；Each axial blade is connected by concaveconvex structure with a bluff body.
Also include igniter, the igniter is stretched in the steady flame chamber through the bluff body group.
The steady flame chamber is more than the steady flame chamber using cylindrical structure or the cone structure of flaring, the length in the steady flame chamber
Maximum gauge.
The accelerating jet adopts cylindrical structure.
The accelerating jet adopts tapered cone structure.
The port of export of the accelerating jet is provided with the second bluff body.
Second bluff body using V-arrangement bluff body, circular cone bluff body, oval bluff body, sand dune shape bluff body and cylindrical bluff body it
One.
The utility model due to taking above technical scheme, with advantages below：1st, the utility model is by changing strong rotation
The divergence of the quantity of axial blade and bluff body in generating means, the different swirling number of acquisition and air-flow causes the combustion of different qualities
Material is fully burnt, and reduces pollutant emission.2nd, the utility model due to axial blade, helically arrange in bluff body group by rule
Row, therefore, it is possible to be formed with tangential velocity in steady flame chamber and the strong cyclone field without tangential velocity nested high temperature recirculation zone.3、
Each bluff body is threaded connection in the utility model bluff body group, thus can easily assembly and disassembly bluff body adapting to different fuel
Combustion characteristics.4th, the utility model is fluted due to arranging on the outside of bluff body, relative set male structure in axial blade, therefore
Axial blade and bluff body can pass through the convenient assembly and disassembly of concaveconvex structure.5th, the utility model is adopted for gas, liquid fuel
Fuel nozzle ports, for solid fuel wind powder pipe is adopted, therefore this burner is suitable for gas, liquid, solid.6th, the utility model
Because burner produces exteenal reflux area, therefore, it is possible to cool down burner, the water cooling plant of burner can be cancelled, reduction is produced into
This.7th, the utility model accelerating jet can be added by the way of bluff body using cylinder, therefore burner hearth is internally formed by returning that bluff body is formed
The toroidal recirculation pattern that stream area and flow area sudden expansion are formed so that temperature is uniform in burner hearth, flame stabilization, pollutant emission drop
It is low.
Description of the drawings
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the utility model wind powder pipe and backflow cap schematic diagram；
Fig. 3 revolves by force generating means structural representation for the utility model；
Fig. 4 is the utility model bluff body structural representation；
Fig. 5 is the utility model axial blade group front view structural representation；
Fig. 6 is the utility model axial blade group left view figure structure schematic representation；
Fig. 7 is the utility model axial blade and bluff body attachment structure schematic diagram；
Fig. 8 is the steady flame chamber of the utility model and accelerating jet using schematic diagram during cylindrical structure.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.
As shown in figure 1, the utility model includes ventilating duct 1, steady flame chamber 2, accelerating jet 3, strong rotation generating means and fuel
Feeding mechanism.Strong rotation generating means is arranged in ventilating duct 1, and it includes axial blade group 4 and bluff body group 5, wherein, axial blade
The outside of group 4 is fastenedly connected with the inner side of ventilating duct 1, and inner side and the outside of bluff body group 5 of axial blade group 4 are fastenedly connected.Surely
The entrance point in flame chamber 2 is connected with the port of export of strong rotation generating means, and the port of export in steady flame chamber 2 connects with the entrance point of accelerating jet 3
Connect.The outside of ventilating duct 1 is provided with middle ventilating duct 6, one end of middle ventilating duct 6 is tightly connected with the side wall in steady flame chamber 2,
The other end is sealed end and leaves spacing with the entrance point of ventilating duct 1.Middle ventilating duct 6 side wall near steady flame chamber 2 position
Put the airduct 7 being connected with for introducing outside combustion air.Fuel supply device includes fuel nozzle ports 8 and wind powder pipe 9, fuel spray
The entrance point of mouth 8 passes the sealed end of middle ventilating duct 6, and the port of export of fuel nozzle ports 8 connects through bluff body group 5 and with steady flame chamber 2
Lead to, gas or liquid fuel can enter stable burning cavity 2 by fuel nozzle ports 8；Wind powder pipe 9 along steady flame chamber 2 it is axial arranged and with combustion
Material spout 8 is detachably connected, and its port of export passes through fuel nozzle ports near steady flame chamber 2 and the interface of accelerating jet 3, entrance point
8 sealed ends for passing middle ventilating duct 6, solid fuel enters stable burning cavity 2 by wind powder pipe 9.
In above-described embodiment, as shown in Fig. 2 the port of export in wind powder pipe 9 is provided with backflow cap 13, backflow cap 13 can pass through
Two pillars or built-in blade are connected with wind powder pipe 9, make breeze airflow adverse current direct-injection or adverse current rotation spray into steady flame chamber 2.
In above-described embodiment, as shown in figure 3, bluff body group 5 is connected in series by the bluff body 10 of multiple same types, it is each blunt
It is threaded connection between body 10.Top surface and the bottom surface positioned at the bluff body 10 of end except the bluff body 10 positioned at head end, remaining
The top surface of bluff body 10 is provided with external screw thread (as shown in Figure 4), and bottom surface is provided with internal thread.
In above-described embodiment, as shown in Fig. 5～Fig. 7, axial blade group 4 includes multiple axial blades 11, wherein, axial leaf
The quantity of piece 11 is less than the quantity of bluff body 10, and each axial blade 11 is connected by concaveconvex structure with a bluff body 10.
In above-described embodiment, as shown in figure 1, the utility model also includes stretching into the igniting dress in steady flame chamber 2 through bluff body group 5
Put 12.
In above-described embodiment, using cylindrical structure or the cone structure of flaring, the length in steady flame chamber 2 is more than steady in steady flame chamber 2
The maximum gauge in flame chamber 2.
In above-described embodiment, accelerating jet 3 adopts cylindrical structure or tapered cone structure, if using cylindrical structure,
Need to accelerating jet 3 port of export center arrange bluff body 14 (as shown in Figure 7), wherein, bluff body 14 can adopt V-arrangement bluff body,
Circular cone bluff body, oval bluff body, sand dune shape bluff body, cylindrical bluff body or other shapes of any curves bluff bodies.
Operation principle of the present utility model is as follows：
Outside combustion air sequentially passes through airduct 7, middle ventilating duct 6, ventilating duct 1 and enters strong rotation generating means, Jing Guoqiang
Air is become into swirling eddy into steady flame chamber 2 after rotation generating means, in two recirculating zones formed behind of swirling eddy, one
It is the exteenal reflux area formed by air, it can be used to cool down the utility model burner, and another is the high temperature reflux of nested
Area.
The utility model is suitable for for gas, liquid and solid fuel, and gas or liquid fuel are directly from fuel nozzle ports 8
Into steady flame chamber 2, in the port of export of strong rotation generating means, air stream is mixed with fuel, forms main flame；Solid fuel leads to
The return flow line for crossing wind powder pipe 9 and the backflow composition of cap 13 enters steady flame chamber 2 against spirt, and solid fuel is carried out through high temperature recirculation zone
After preheating, mixed in strong rotation generating means port of export air stream and fuel, formed main flame；The air-flow of burning is in this practicality
Convolution in novel burner is burned, and reaches up to the intersection of steady flame chamber 2 and accelerating jet 3, there is about 40～60% herein
Burning gases flow back, and remaining burning gases forms high-temperature injection flame and enters burner hearth through accelerating jet 3.
The utility model can by change axial blade 11 number and bluff body 10 number come adjust high temperature recirculation zone and
The property in exteenal reflux area.Reducing the number of axial blade 11 can reduce swirling number, increase the thickness in exteenal reflux area, increase axial leaf
The number of piece 11, can reduce the thickness in exteenal reflux area；The thickness in exteenal reflux area is excessive, can cause incomplete combustion, exteenal reflux area
Thickness is too little, and burner wall surface temperature can be caused too high, damages burner, so swirling number control is between 0.5～1.5
Preferably.If the number of axial blade 11 is identical with the number of bluff body 10, high temperature recirculation zone is by rotating jet and flow area sudden expansion
The nested recirculating zone that the recirculating zone and the recirculating zone without tangential velocity that have tangential velocity for being formed is done jointly；If axial blade
11 number is less than the number of bluff body 10, and swirling number is reduced, and high temperature recirculation zone is that the nested formed by rotating jet and bluff body is returned
Stream area；The turbulence intensity of the nested recirculating zone that rotating jet and flow area sudden expansion are formed is formed more than rotating jet and bluff body
Nested recirculating zone, for gaseous fuel, preferably using axial blade 11 and the equal numbers of mode of bluff body 10, and liquid or
Solid fuel is preferably less than by the way of the number of bluff body 10 using the number for selecting axial blade 11.
The utility model is only illustrated with above-described embodiment, and the structure of each part, set location and its connection are all can
It is all individual part is carried out according to the utility model principle on the basis of technical solutions of the utility model with what is be varied from
Improvement and equivalents, should not exclude outside protection domain of the present utility model.
Claims (10)
1. a kind of strong swirl jet burner, it is characterised in that：It includes ventilating duct, steady flame chamber, accelerating jet, revolves generating means by force
And fuel supply device；It is described it is strong rotation generating means be arranged in the ventilating duct, it is described it is strong rotation generating means the port of export with
The entrance point connection in the steady flame chamber, the port of export in the steady flame chamber is connected with the entrance point of the accelerating jet, the fuel
Feeding mechanism is axial arranged in the strong rotation generating means and the steady flame chamber；The outside of the ventilating duct is provided with centre
Ventilating duct, one end of the middle ventilating duct is tightly connected with the side wall in the steady flame chamber, the other end be sealed end and with it is described
The entrance point of ventilating duct leaves spacing, is connected with for drawing near the position in the steady flame chamber in the side wall of the middle ventilating duct
Enter the airduct of outside combustion air, the fuel supply device includes fuel nozzle ports and wind powder pipe, the import of the fuel nozzle ports
End passes the sealed end of the middle ventilating duct, the port of export of the fuel nozzle ports through the strong rotation generating means and with it is described
Steady flame chamber connection；The wind powder pipe is axial arranged and detachably connected with the fuel nozzle ports along the steady flame chamber, the wind
The entrance point of tube cell passes the sealed end of the middle ventilating duct by fuel nozzle ports.
2. strong swirl jet burner as claimed in claim 1, it is characterised in that：The strong rotation generating means includes axial blade
Group and bluff body group, are fastenedly connected on the inside of the outside of the axial blade group and the ventilating duct, the axial blade group it is interior
It is fastenedly connected on the outside of side and the bluff body group.
3. strong swirl jet burner as claimed in claim 2, it is characterised in that：The bluff body group is connected in series by multiple bluff bodies
Form, be threaded connection between each bluff body.
4. strong swirl jet burner as claimed in claim 3, it is characterised in that：The axial blade group includes multiple axial leaves
Piece, the number of the axial blade is less than the number of the bluff body；Each axial blade is by concaveconvex structure and one
The bluff body connection.
5. strong swirl jet burner as claimed in claim 2, it is characterised in that：Also include igniter, the igniter
Stretch in the steady flame chamber through the bluff body group.
6. strong swirl jet burner as claimed in claim 1, it is characterised in that：The steady flame chamber is using cylindrical structure or flaring
Cone structure, the maximum gauge of the length in the steady flame chamber more than the steady flame chamber.
7. strong swirl jet burner as claimed in claim 1, it is characterised in that：The accelerating jet adopts cylindrical structure.
8. strong swirl jet burner as claimed in claim 1, it is characterised in that：The accelerating jet is tied using tapered taper
Structure.
9. strong swirl jet burner as claimed in claim 7, it is characterised in that：It is provided with the port of export of the accelerating jet
Second bluff body.
10. strong swirl jet burner as claimed in claim 9, it is characterised in that：Second bluff body adopts V-arrangement bluff body, circle
One of cone bluff body, oval bluff body, sand dune shape bluff body and cylindrical bluff body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620973541.7U CN206094062U (en) | 2016-08-29 | 2016-08-29 | Strong efflux combustor that revolves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620973541.7U CN206094062U (en) | 2016-08-29 | 2016-08-29 | Strong efflux combustor that revolves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206094062U true CN206094062U (en) | 2017-04-12 |
Family
ID=58473606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620973541.7U Active CN206094062U (en) | 2016-08-29 | 2016-08-29 | Strong efflux combustor that revolves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206094062U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000226A (en) * | 2018-08-31 | 2018-12-14 | 煤科院节能技术有限公司 | A kind of air-cooled burner |
-
2016
- 2016-08-29 CN CN201620973541.7U patent/CN206094062U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000226A (en) * | 2018-08-31 | 2018-12-14 | 煤科院节能技术有限公司 | A kind of air-cooled burner |
| CN109000226B (en) * | 2018-08-31 | 2023-12-29 | 北京天地融创科技股份有限公司 | Air-cooled burner |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102606 No.5, Yulong Street, Caiyu Economic Development Zone, Caiyu Town, Daxing District, Beijing Patentee after: Beijing Tiandi Sunac Technology Co.,Ltd. Address before: 102606 No.5, Yulong Street, Caiyu Economic Development Zone, Caiyu Town, Daxing District, Beijing Patentee before: CHINA COAL RESEARCH INSTITUTE (CCRI) ENERGY SAVING TECHNOLOGY CO.,LTD. |