CN106196042B - A kind of strong swirl jet burner - Google Patents
A kind of strong swirl jet burner Download PDFInfo
- Publication number
- CN106196042B CN106196042B CN201610755254.3A CN201610755254A CN106196042B CN 106196042 B CN106196042 B CN 106196042B CN 201610755254 A CN201610755254 A CN 201610755254A CN 106196042 B CN106196042 B CN 106196042B
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- CN
- China
- Prior art keywords
- bluff body
- flame chamber
- steady flame
- generating means
- ventilating duct
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
- F23D1/02—Vortex burners, e.g. for cyclone-type combustion apparatus
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The present invention relates to a kind of strong swirl jet burners, it is characterised in that：It includes ventilating duct, steady flame chamber, accelerating jet, strong rotation generating means and fuel supply device；The strong rotation generating means is arranged in the ventilating duct, the port of export of the strong rotation generating means is connected with the input end of the steady flame chamber, the port of export of the steady flame chamber is connected with the input end of the accelerating jet, and the fuel supply device is axial arranged in the strong rotation generating means and steady flame chamber；The fuel supply device includes fuel nozzle ports and wind powder pipe, and the input end of the fuel nozzle ports is pierced by the sealed end of the intermediate guide duct, and the port of export of the fuel nozzle ports is connected through the strong rotation generating means and with the steady flame chamber；The wind powder pipe is axial arranged along steady flame chamber and detachably connected with the fuel nozzle ports, and the input end of the wind powder pipe is pierced by the sealed end of intermediate ventilating duct by fuel nozzle ports.
Description
Technical field
The present invention relates to a kind of strong swirl jet burners, belong to industrial burning device technical field.
Background technology
Such as the shortage of the non-renewable energy resources of coal, oil and natural gas and discharge in use unburned
Hydrocarbon and oxynitrides seriously destroy natural environment to the greatest extent, 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
It is differed the characteristics of bigger, load regulation range is wider in fuel characteristic, but the design of Industrial Boiler is substantially pin at present
To a certain specific fuel, when changing fuel characteristic or relatively low duty ratio, there is efficiency of combustion decline, pollutant emission is high
The problem of.
The content of the invention
For problem present in background technology, it is an object of the invention to provide one kind can improve fuel tolerance simultaneously
And low stain, efficient strong swirl jet burner.
To achieve the above object, the present invention uses following technical scheme：A kind of strong swirl jet burner, it is characterised in that：
It includes ventilating duct, steady flame chamber, accelerating jet, strong rotation generating means and fuel supply device；The strong rotation generating means is set
In in the ventilating duct, the port of export of the strong rotation generating means is connected with the input end of the steady flame chamber, the steady flame chamber
The port of export is connected with the input end of the accelerating jet, the fuel supply device it is axial arranged in it is described it is strong rotation generating means and
In steady flame chamber；The fuel supply device includes fuel nozzle ports and wind powder pipe, the input ends of the fuel nozzle ports be pierced by it is described in
Between ventilating duct sealed end, the ports of export of the fuel nozzle ports connects through the strong rotation generating means and with the steady flame chamber；
The wind powder pipe is axial arranged along steady flame chamber and detachably connected with the fuel nozzle ports, and the input end of the wind powder pipe passes through
Fuel nozzle ports are pierced by the sealed end of intermediate ventilating duct.
The strong rotation generating means includes axial blade group and bluff body group, outside and the wind-guiding of the axial blade group
The inside of cylinder is fastenedly connected, and the inside of the axial blade group on the outside of the bluff body group with being fastenedly connected.
The bluff body group is connected in series by multiple bluff bodies, is connected through a screw thread between each bluff body.
The axial blade group includes multiple axial blades, and the number of the axial blade is no more than the number of the bluff body
Mesh；Each axial blade is connected by concaveconvex structure with a bluff body.
Igniter is further included, the igniter is stretched into through the bluff body group in the steady flame chamber.
The steady flame chamber is more than the steady flame chamber using cylindrical structure or the cone structure of flaring, the length of the steady flame chamber
Maximum gauge.
The accelerating jet uses cylindrical structure.
The accelerating jet is using the cone structure reduced.
The port of export of 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 present invention has the following advantages due to taking above technical scheme：1st, the present invention is by changing strong rotation generating means
The quantity of middle axial blade and bluff body obtains the divergence of different swirling numbers and air-flow so that the fuel of different characteristics is filled
Divided combustion reduces pollutant emission.2nd, the present invention due to axial blade it is helically regularly arranged in bluff body group, can be
Tangential velocity and the strong cyclone field without tangential velocity nested high temperature recirculation zone are formed in steady flame chamber.3rd, in bluff body group of the present invention
Each bluff body is connected through a screw thread, therefore easily can adapt to the combustion characteristics of different fuel by assembly and disassembly bluff body.4th, this hair
It is bright fluted due to being set on the outside of bluff body, male structure is accordingly set in axial blade, therefore axial blade and bluff body can pass through
The convenient assembly and disassembly of concaveconvex structure.5th, the present invention is used for gas, liquid fuel using fuel nozzle ports for solid fuel
Wind powder pipe, therefore this burner is suitable for gas, liquid, solid.6th, the present invention is due to burner generation exteenal reflux area, energy
Burner is enough cooled down, the water cooling plant of burner can be cancelled, reduces production cost.7th, accelerating jet of the present invention can be used cylinder and add
The mode of bluff body, therefore the toroidal recirculation pattern that the recirculating zone and flow area sudden expansion that formation is formed by bluff body inside burner hearth are formed,
So that temperature is uniform in burner hearth, flame stabilization, pollutant emission reduces.
Description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is wind powder pipe of the present invention and reflux cap structure schematic diagram；
Fig. 3 is the strong rotation generating means structure diagram of the present invention；
Fig. 4 is bluff body structure diagram of the present invention；
Fig. 5 is axial blade group front view structural representation of the present invention；
Fig. 6 is axial blade group left view figure structure schematic representation of the present invention；
Fig. 7 is axial blade of the present invention and bluff body attachment structure schematic diagram；
Fig. 8 is schematic diagram when steady flame chamber and accelerating jet of the invention use cylindrical structure.
Specific embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the present invention includes ventilating duct 1, steady flame chamber 2, accelerating jet 3, strong rotation generating means and fuel supply
Device.Strong rotation generating means is arranged in ventilating duct 1, including axial blade group 4 and bluff body group 5, wherein, axial blade group 4
Outside and the inside of ventilating duct 1 be fastenedly connected, the inside and the outside of bluff body group 5 of axial blade group 4 are fastenedly connected.Steady flame chamber
2 input end is connected with the port of export of strong rotation generating means, and the port of export of steady flame chamber 2 is connected with the input end of accelerating jet 3.
The outside of ventilating duct 1 is provided with intermediate ventilating duct 6, and one end of intermediate ventilating duct 6 and the side wall of steady flame chamber 2 are tightly connected, another
It holds as sealed end and leaves spacing with the input end of ventilating duct 1.Connect in the side wall of intermediate ventilating duct 6 close to the position of steady flame chamber 2
It is connected to introduce the air hose 7 of external combustion air.Fuel supply device includes fuel nozzle ports 8 and wind powder pipe 9, fuel nozzle ports 8
Input end be pierced by the sealed end of intermediate ventilating duct 6, the port of export of fuel nozzle ports 8 is connected through bluff body group 5 and with steady flame chamber 2,
Gas or liquid fuel can enter stable burning cavity 2 by fuel nozzle ports 8；Wind powder pipe 9 is axial arranged along steady flame chamber 2 and is sprayed with fuel
Mouth 8 is detachably connected, and the port of export is worn close to steady flame chamber 2 and the interface of accelerating jet 3, input end by fuel nozzle ports 8
Go out the sealed end of intermediate 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 reflux cap 13, reflux cap 13 can pass through
Two pillars or built-in blade are connected with wind powder pipe 9, and breeze airflow adverse current direct-injection or adverse current rotation is made to 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 connected through a screw thread between body 10.Except the top surface of the bluff body 10 that is located at head end and positioned at the bottom surface of the bluff body 10 of end, remaining
The top surface of bluff body 10 is both provided with external screw thread (as shown in Figure 4), and bottom surface is both 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 no more 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, present invention additionally comprises the igniters that steady flame chamber 2 is stretched into through bluff body group 5
12。
In above-described embodiment, steady flame chamber 2 is more than surely using cylindrical structure or the cone structure of flaring, the length of steady flame chamber 2
The maximum gauge of flame chamber 2.
In above-described embodiment, accelerating jet 3 uses cylindrical structure or tapered cone structure, if using cylindrical structure,
Need to the port of export center of accelerating jet 3 set bluff body 14 (as shown in Figure 7), wherein, bluff body 14 can be used 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.
The operation principle of the present invention is as follows：
External combustion air is successively by air hose 7, intermediate ventilating duct 6, ventilating duct 1 into strong rotation generating means, through too strong
Air is become into swirling eddy into steady flame chamber 2 after rotation generating means, two recirculating zones of formation behind swirling eddy, one
It is the exteenal reflux area formed by air, can be used to cool down burner of the present invention, the other is the high temperature recirculation zone of nested.
The present invention is applicable in for gas, liquid and solid fuel, and gas or liquid fuel directly enter from fuel nozzle ports 8
Steady flame chamber 2, in the port of export of rotation generating means by force, air stream is mixed with fuel, forms main flame；Solid fuel passes through wind
The return flow line that tube cell 9 and reflux cap 13 form enters steady flame chamber 2 against spirt, and solid fuel is preheated by high temperature recirculation zone
Afterwards, mixed in rotation generating means port of export air stream and fuel by force, form main flame；The air-flow of burning burns in the present invention
Convolution is burned in device, reaches up to the intersection of steady flame chamber 2 and accelerating jet 3, the burning gases for having about 40~60% herein
Reflux, remaining burning gases form high-temperature injection flame by accelerating jet 3 and enter burner hearth.
The present invention can adjust high temperature recirculation zone and outer go back to by changing the number of axial blade 11 and the number of bluff body 10
Flow the property in area.Swirling number can be reduced by reducing the number of axial blade 11, increase the thickness in exteenal reflux area, increase axial blade 11
Number, the thickness in exteenal reflux area can be reduced；The thickness in exteenal reflux area is excessive, can cause incomplete combustion, exteenal reflux area thickness
It is too small, burner wall surface temperature can be caused excessively high, damage burner, so swirling number control is advisable between 0.5~1.5.Such as
When 11 number of fruit axial blade is identical with 10 number of bluff body, high temperature recirculation zone is formed by rotating jet and flow area sudden expansion
There is the nested recirculating zone that the recirculating zone of tangential velocity and the recirculating zone without tangential velocity are done jointly；If the number of axial blade 11
Mesh is less than 10 number of bluff body, and swirling number is reduced, and high temperature recirculation zone is the nested recirculating zone formed by rotating jet and bluff body；Rotation
Turn jet stream and the turbulence intensity of nested recirculating zone that flow area sudden expansion is formed be more than rotating jet formed with bluff body it is nested
Type recirculating zone, for gaseous fuel, preferably using 10 equal numbers of mode of axial blade 11 and bluff body, and liquid or solid fires
Material is preferably using the number of selection axial blade 11 less than by the way of 10 number of bluff body.
The present invention is only illustrated with above-described embodiment, and structure, installation position and its connection of each component are all can have
Changed, on the basis of technical solution of the present invention, improvement that all principles according to the present invention carry out individual part and equivalent
Conversion, should not exclude outside protection scope of the present invention.
Claims (7)
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 input end connection of the steady flame chamber, the port of export of the steady flame chamber are connected with the input end of the accelerating jet；It is led described
The outside of air duct is provided with intermediate ventilating duct, and one end of the intermediate ventilating duct and the side wall of the steady flame chamber are tightly connected, separately
For sealed end and leave spacing with the input end of the ventilating duct in one end；The fuel supply device is axial arranged in the strong rotation
In generating means and steady flame chamber；The fuel supply device includes fuel nozzle ports and wind powder pipe, the input end of the fuel nozzle ports
Be pierced by the sealed end of the intermediate ventilating duct, the ports of export of the fuel nozzle ports through the strong rotation generating means and with it is described steady
Flame chamber connects；The wind powder pipe is axial arranged along steady flame chamber and detachably connected with the fuel nozzle ports, the wind powder pipe
Input end is pierced by the sealed end of intermediate ventilating duct by fuel nozzle ports；The strong rotation generating means includes axial blade group and bluff body
Group, the outside of the axial blade group with being fastenedly connected on the inside of the ventilating duct, the inside of the axial blade group with it is described
It is fastenedly connected on the outside of bluff body group；The bluff body group is connected in series by multiple bluff bodies, passes through screw thread between each bluff body
Connection；The axial blade group includes multiple axial blades, and the number of the axial blade is no more than the number of the bluff body；Often
One axial blade is connected by concaveconvex structure with a bluff body.
2. a kind of strong swirl jet burner as described in claim 1, it is characterised in that：Further include igniter, the igniting
Device is stretched into through the bluff body group in the steady flame chamber.
3. a kind of strong swirl jet burner as described in claim 1, it is characterised in that：The steady flame chamber using cylindrical structure or
The cone structure of flaring, the length of the steady flame chamber are more than the maximum gauge of the steady flame chamber.
4. a kind of strong swirl jet burner as described in claim 1, it is characterised in that：The accelerating jet uses cylinder knot
Structure.
5. a kind of strong swirl jet burner as described in claim 1, it is characterised in that：The accelerating jet is using the cone reduced
Shape structure.
6. a kind of strong swirl jet burner as claimed in claim 4, it is characterised in that：It is provided in the port of export of accelerating jet
Second bluff body.
7. a kind of strong swirl jet burner as claimed in claim 6, it is characterised in that：Second bluff body using V-arrangement bluff body,
One of circular 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 |
|---|---|---|---|
| CN201610755254.3A CN106196042B (en) | 2016-08-29 | 2016-08-29 | A kind of strong swirl jet burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610755254.3A CN106196042B (en) | 2016-08-29 | 2016-08-29 | A kind of strong swirl jet burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106196042A CN106196042A (en) | 2016-12-07 |
| CN106196042B true CN106196042B (en) | 2018-05-25 |
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ID=58087982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610755254.3A Active CN106196042B (en) | 2016-08-29 | 2016-08-29 | A kind of strong swirl jet burner |
Country Status (1)
| Country | Link |
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| CN (1) | CN106196042B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8113821B2 (en) * | 2008-03-07 | 2012-02-14 | Hauck Manufacturing Company | Premix lean burner |
| CN201462825U (en) * | 2009-06-10 | 2010-05-12 | 煤炭科学研究总院 | pulverized coal burner |
| CN102607018B (en) * | 2012-03-02 | 2014-04-16 | 中国计量学院 | Graded air-feed dual-swirled pulverized coal industrial furnace combustor |
| CN202993189U (en) * | 2012-11-21 | 2013-06-12 | 山东能源机械集团有限公司 | Efficient combustion device of pulverized coal boiler |
| CN105716081A (en) * | 2016-01-27 | 2016-06-29 | 北京泷涛环境科技有限公司 | Low-resistance adjustable swirling disk |
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2016
- 2016-08-29 CN CN201610755254.3A patent/CN106196042B/en active Active
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| Publication number | Publication date |
|---|---|
| CN106196042A (en) | 2016-12-07 |
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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. |