CN206709063U - Turbulent burner and there is its boiler - Google Patents
Turbulent burner and there is its boiler Download PDFInfo
- Publication number
- CN206709063U CN206709063U CN201720228220.9U CN201720228220U CN206709063U CN 206709063 U CN206709063 U CN 206709063U CN 201720228220 U CN201720228220 U CN 201720228220U CN 206709063 U CN206709063 U CN 206709063U
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- air
- turbulent burner
- precombustion chamber
- jet
- distribution device
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Abstract
The utility model provides a kind of turbulent burner and has its boiler.Wherein, in the turbulent burner, multiple fluidic channels are axially provided with along precombustion chamber, multiple fluidic channels are arranged around the axis of precombustion chamber；The jet distribution plenum of jet combustion wind air-distribution device is respectively communicated with multiple fluidic channels.Pass through the utility model, jet combustion wind air-distribution device sprays to jet combustion wind around rotary combustion wind through fluidic channel, air quantity by adjusting jet combustion wind can realize air stage feeding burn and facilitate control flame size, the ignition temperature for solving turbulent burner is high, the problem of adjusting range is small, NOx initial ejection can be reduced.
Description
Technical field
Boiler technology field is the utility model is related to, in particular to a kind of turbulent burner and there is its boiler.
Background technology
At present, the middle-size and small-size solid fuel powder steam boiler in the range of capacity 2.8MW~116MW, hot-water boiler and have
Machine thermal medium boiler burner, to the bad adaptability of solid fuel powder, ignition temperature is higher, and adjusting range is small, is unfavorable for just
The reduction of beginning NOx emission.
Utility model content
The utility model provides a kind of turbulent burner and has its boiler, at least to solve the rotation in correlation technique
Flow the problem of ignition temperature of burner is high, and adjusting range is small.
According to one side of the present utility model, there is provided a kind of turbulent burner, including：Solid fuel powder pneumatic transporting
Ajutage, rotary combustion wind air-distribution device and precombustion chamber, the rotary combustion wind air-distribution device includes secondary air chamber, described secondary
Air compartment is circumferentially positioned on the solid fuel powder Geldart-D particle airduct, and the precombustion chamber is arranged on the solid fuel powder
The rear end of Geldart-D particle airduct, wherein, the turbulent burner also includes jet combustion wind air-distribution device, the jet combustion wind
Air-distribution device includes：
Along axial multiple fluidic channels of the precombustion chamber, the multiple fluidic channel surrounds the axis of the precombustion chamber
Arrangement；And
Jet distribution plenum, it is respectively communicated with the multiple fluidic channel.
Alternatively, fluidic channel air flow regulator, the fluidic channel are additionally provided with each fluidic channel
Air flow regulator includes any one in airflow direction adjuster, air velocity adjuster and air-flow eddy flow adjuster this three
Kind, the either combination including combination both any in this three or including this three.
Alternatively, the solid fuel powder Geldart-D particle airduct is the bifurcation structure being made up of main pipe and Zhi Ganguan；
The turbulent burner also includes central tube, and the central tube is through the main pipe and stretches into the precombustion chamber；
Or the central tube is set on the main pipe and stretches into the precombustion chamber.
Alternatively, the turbulent burner also includes：Combustion gas spray feed device, the combustion gas spray feed device run through the center
Pipe stretches into the precombustion chamber.
Alternatively, in the rotary combustion wind air-distribution device, the central tube and/or the jet combustion wind air-distribution device
The gas being passed through is air, or the mixed gas of air and circulating flue gas.
Alternatively, the inclination angle between the axis of the fluidic channel and the precombustion chamber is -10~10 °.
Alternatively, the rotary combustion wind air-distribution device also includes rotary combustion wind louver；The secondary air chamber leads to
Cross along the first radial direction airduct of the secondary air chamber radial direction and connect the rotary combustion wind louver.
Alternatively, the jet combustion wind air-distribution device also includes jet combustion wind louver；The jet distribution plenum
By connecting the jet combustion wind louver along the second radial direction airduct of the jet distribution plenum radial direction.
Alternatively, in addition to igniter, the igniter passes through the precombustion chamber, and stretches into the precombustion chamber.
According to other side of the present utility model, a kind of boiler, including turbulent burner, alternatively, institute are additionally provided
It is above-mentioned turbulent burner to state turbulent burner, and the turbulent burner is installed on the hearth wall of the boiler, the stove
The hearth wall fluidic channel to be connected with the multiple fluidic channel of the burner is provided with bore wall.
Turbulent burner provided by the utility model is axially provided with multiple jets axially through hearth wall along precombustion chamber
Passage, multiple fluidic channels are arranged around the axis of precombustion chamber；The jet distribution plenum of jet combustion wind air-distribution device is respectively communicated with
Multiple fluidic channels；Using said structure, jet combustion wind is sprayed to rotation combustion by jet combustion wind air-distribution device through fluidic channel
Make a fire around flame, the air quantity by adjusting jet combustion wind can realize that air stage feeding burns and facilitates the chi of control flame
It is very little.It can be seen that the utility model solves the burning temperature of turbulent burner by the above-mentioned structure that can be realized air stage feeding and burn
The problem of degree is high, and adjusting range is small, so as to reduce NOx initial ejection.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms the part of the application,
Schematic description and description of the present utility model is used to explain the utility model, does not form to of the present utility model improper
Limit.In the accompanying drawings：
Fig. 1 is the profile according to the turbulent burner of the utility model embodiment 1；
Fig. 2 is the schematic diagram according to the fluidic channel air flow regulator of the turbulent burner of the utility model embodiment 2；
Fig. 3 is the profile according to the turbulent burner of the utility model embodiment 3；
Fig. 4 is the profile according to the turbulent burner of the utility model embodiment 4；
Fig. 5 is the profile according to the turbulent burner of the utility model embodiment 5.
Letter represents everywhere in figure：A, pneumatic transporting air-supply and solid fuel powder mixed gas；B, rotary combustion wind；C, penetrate
Flow wind；D, multiple jetses wind；E, flame；F, First air；G, combustion gas.Arrow states position and direction in figure.
Embodiment
Describe the utility model in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not rushing
In the case of prominent, the feature in embodiment and embodiment in the application can be mutually combined.
It should be noted that term " first " in specification and claims of the present utility model and above-mentioned accompanying drawing,
" second " etc. is for distinguishing similar object, without for describing specific order or precedence.
Embodiment 1
A kind of turbulent burner is provided in the present embodiment 1, Fig. 1 is fired according to the eddy flow of the utility model embodiment 1
The profile of burner.As shown in figure 1, the turbulent burner includes：Solid fuel powder Geldart-D particle airduct 1, rotary combustion wind
Air-distribution device 3, igniter 4 and precombustion chamber 5, the secondary air chamber 31 of rotary combustion wind air-distribution device 3 are circumferentially positioned at solid combustion
On feed powder end Geldart-D particle airduct 1, precombustion chamber 5 is arranged on the rear end of solid fuel powder Geldart-D particle airduct 1, igniter 4
Stretch into precombustion chamber 5.
Wherein, solid fuel powder Geldart-D particle airduct 1 is passed through the pneumatic transporting for being mixed with solid fuel powder to precombustion chamber
Air-supply；Rotary combustion wind air-distribution device 3 sprays into rotary gas by the prosopyle of secondary air chamber 31 to precombustion chamber 5, is formed to burner hearth
The rotary combustion wind that direction is rotationally advancing；Rotary combustion wind mixes with solid fuel powder in precombustion chamber 5, passes through igniting first
Combustion is opened in the igniting of device 4, then relies on the temperature of flame own combustion and the high-temperature gas dimension of rotary combustion flame root backflow
Hold burning.
In the present embodiment 1, solid fuel powder Geldart-D particle airduct 1 is bifurcation structure, including main pipe and Zhi Ganguan,
Wherein, main pipe is straight tube, and Zhi Ganguan stretches into from the side of main pipe is oblique.It is mixed with the pneumatic transporting air-supply of solid fuel powder
Mainly precombustion chamber 5 is sent into from Zhi Ganguan, naturally it is also possible to be sent into precombustion chamber 5 from main pipe；But more commonly it is mixed with solid
The pneumatic transporting air-supply of fluid fuel powder is sent into precombustion chamber 5 from Zhi Ganguan, and main pipe is then selectively passed through First air or not
It is passed through First air.If being passed through First air from main pipe, First air can be direct current wind, and First air can also be after installing cyclone additional
Rotary wind.
The turbulent burner of the present embodiment also includes：Jet combustion wind air-distribution device 6；And opened along the axial direction of precombustion chamber 5
If multiple fluidic channels 7, multiple fluidic channels 7 circumferentially arrange around the axis of precombustion chamber 5；Jet combustion wind air-distribution device
6 jet distribution plenum 61 is respectively communicated with above-mentioned multiple fluidic channels 7.
Alternatively, fluidic channel 7 can be opened in the axial side wall of precombustion chamber 5, can also be in the axial side wall of precombustion chamber 5
It is outer that single passage is set as fluidic channel 7.
By said structure, jet combustion wind is sprayed to rotary combustion wind by jet combustion wind air-distribution device 6 through fluidic channel 7
Around, the air quantity by adjusting jet combustion wind can realize air stage feeding burn and facilitate control flame size.Can
To see, for the utility model by the above-mentioned structure that can be realized air stage feeding and burn, it is high to solve the ignition temperature of turbulent burner,
The problem of adjusting range is small, so as to reduce NOx initial ejection.
Preferably, the gas being passed through in rotary combustion wind air-distribution device, central tube, jet combustion wind air-distribution device is sky
Gas, or the mixed gas of air and circulating flue gas.
Preferably, the inclination angle between the axis of fluidic channel 7 and precombustion chamber 5 is -10~10 °.More preferably, fluidic channel 7
Inclination angle between the axis of precombustion chamber 5 is 0 °, and jet combustion wind sprays to pre- along fluidic channel 7 parallel to the axis of precombustion chamber 5
Fire the flame periphery that the afterbody of room 5 sprays；When there is certain inclination angle between the axis of fluidic channel 7 and precombustion chamber 5, fluidic channel
The eccentricity of fire or deviation that jet combustion wind in 7 is sprayed with low-angle to the afterbody of precombustion chamber 5.
Preferably, rotary combustion wind air-distribution device 3 includes：Secondary air chamber 31 and rotary combustion wind louver 33；It is secondary
Air compartment 31 along the first radial direction airduct 32 of the radial direction of secondary air chamber 31 by connecting rotary combustion wind louver 33.Rotary combustion wind
Louver 33 can be valve, air door, or other can control the device of gas flow.Rotary combustion wind louver 33
The electrified air door that can be preferably controlled by robot control system(RCS).
Preferably, jet combustion wind air-distribution device 6 includes：Jet distribution plenum 61 and jet combustion wind louver 62；Ring
The jet distribution plenum 61 of shape along the second radial direction airduct 63 of the radial direction of jet distribution plenum 61 by connecting jet combustion wind louver
62.Jet combustion wind louver 62 can be valve, air door, or other can control the device of gas flow.Jet fires
It is preferably the electrified air door that can be controlled by robot control system(RCS) to burn wind louver 62.
The turbulent burner of the present embodiment can also include robot control system(RCS), and the robot control system(RCS) can adjust wind with rotary combustion wind
Any one of device 32, jet combustion wind louver 62, temperature-detecting device including fire box temperature senser element
Or multinomial electric connection.The robot control system(RCS) is used for realizing that cloth wind at different levels are adjustable, for automatically controlling precombustion chamber outlet ejection
The ignition temperature and oxygen content of flame.
Embodiment 2
Another turbulent burner is provided in the present embodiment 2, the turbulent burner and the basic phase of structure shown in Fig. 1
Together, difference is, fluidic channel air flow regulator is additionally provided with each fluidic channel 7.
Fluidic channel air flow regulator 8, for adjusting the air-flow in fluidic channel 7.Fig. 2 is real according to the utility model
The schematic diagram of the fluidic channel air flow regulator of the turbulent burner of example 2 is applied, as shown in Fig. 2 fluidic channel air-flow regulation dress
The adjuster of following three kinds of forms can be included by putting 8, and 81 be airflow direction adjuster, for adjusting airflow direction, for example, passing through
Change the opening for the airflow direction adjuster being arranged in fluidic channel relative to the central axial circle of airflow direction adjuster
All positions adjusts airflow direction；82 be air velocity adjuster, for adjusting air velocity, for example, being arranged on by changing
The openings of sizes of airflow direction adjuster in fluidic channel adjusts airflow direction；83 be air-flow eddy flow adjuster, for reality
Existing flow rotation, changes cyclone eddy flow angle, and can change swirl strength.Fluidic channel adjusting means 8 is fixed on and penetrated
In circulation road 7, it is possible to the air-flow in regulation fluidic channel as needed.
In fluidic channel air flow regulator 8, any of above-mentioned three kinds of adjusters can be used alone, sometimes
Above-mentioned three kinds of adjusters can be used in any combination.For example, for the multiple fluidic channels circumferentially set, compartment of terrain
Using two or three of different adjuster in above-mentioned three kinds of adjusters.
Fluidic channel air flow regulator 8 in the present embodiment 2 can also be applied in the utility model other embodiment
Eddy flow stream burner in.
Embodiment 3
A kind of turbulent burner is provided in the present embodiment 3, the turbulent burner and the basic phase of structure shown in Fig. 1
Together, difference is, the turbulent burner also includes central tube 2.
Fig. 3 is according to the profile of the turbulent burner of the utility model embodiment 3, as shown in figure 3, solid fuel powder
Geldart-D particle airduct 1 is the bifurcation structure being made up of main pipe and Zhi Ganguan, and central tube 2 is through main pipe and stretches into precombustion chamber 5.
Central tube 2 is selectively passed through First air or is not passed through First air.If being passed through First air from central tube 2, First air can be
Direct current wind, or rotary wind.
Embodiment 4
A kind of turbulent burner is provided in the present embodiment 4, the turbulent burner and the turbulent burner knot shown in Fig. 3
Structure is essentially identical, and difference is, the arrangement of the central tube 2 of the turbulent burner improves.
Fig. 4 is according to the profile of the turbulent burner of the utility model embodiment 4, as shown in figure 4, the turbulent burner
Also central tube 2 is included, but central tube 2 is set on main pipe and stretches into precombustion chamber 5.
Embodiment 5
A kind of turbulent burner is provided in the present embodiment 5, the turbulent burner and the basic phase of structure shown in Fig. 3
Together, difference is, the central tube 2 of the turbulent burner is also the bifurcated knot with solid fuel powder Geldart-D particle airduct 1
The similar bifurcation structure of structure, including central backbone pipe and center Zhi Ganguan, wherein, central backbone pipe is straight tube, center Zhi Ganguan
Through solid fuel powder Geldart-D particle airduct 1 and oblique central backbone pipe is stretched into from the side of center main pipe.Central tube 2 can
Selectively it is passed through First air or is not passed through First air.If being passed through First air from the central tube main pipe of central tube 2, First air can
Think direct current wind, or rotary wind.
Fig. 5 is according to the profile of the turbulent burner of the utility model embodiment 5, as shown in figure 5, in central backbone pipe
It is interior, combustion gas spray feed device 10 can be optionally installed, the combustion gas spray feed device 10 runs through the central backbone Guan Bingshen of central tube 2
Enter precombustion chamber 5.
Combustion gas spray feed device 10 is used to combustion gas spraying to precombustion chamber 5, and rotary combustion wind air-distribution device 3 passes through secondary air chamber 31
Prosopyle to precombustion chamber spray into rotary gas, form the rotary combustion wind being rotationally advancing to burner hearth direction；Rotary combustion wind combustion gas
Combustion is opened by the igniting of igniter 4 first in precombustion chamber 5, then relies on the temperature and rotary combustion fire of flame own combustion
The high-temperature gas of flame root backflow maintains burning., can in the central tube 2 of turbulent burner after installation combustion gas spray feed device 10
To realize independent fuel gas buring, it can also realize and solid fuel powder while burn.
Embodiment 6
A kind of boiler, including turbulent burner are provided in the present embodiment 6, the turbulent burner is above-described embodiment 1
Any of~5 turbulent burners, turbulent burner are installed on the hearth wall of boiler, are provided with hearth wall and burner
The hearth wall fluidic channel that connects of multiple fluidic channels 7.
In summary, by above-described embodiment of the present utility model or embodiment, turbulent burner can be increased
The adjustable range of ignition temperature；, can be on the premise of burn-off rate be ensured by robot control system(RCS) in some preferred embodiments
Ignition temperature is adjusted, reduces the concentration of NOx initial ejections.The utility model is especially suitable for different types of solid fuel powder
The burning of (such as coal dust)；In addition, installing combustion gas spray feed device additional, it can individually turn into gas burner, solid fuel powder can be turned into
End and combustion gas combustion combustor.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (10)
1. a kind of turbulent burner, including：Solid fuel powder Geldart-D particle airduct, rotary combustion wind air-distribution device and pre-burning
Room, the rotary combustion wind air-distribution device include secondary air chamber, and the secondary air chamber is circumferentially positioned at the solid fuel powder
On Geldart-D particle airduct, the precombustion chamber is arranged on the rear end of the solid fuel powder Geldart-D particle airduct, it is characterised in that
The turbulent burner also includes jet combustion wind air-distribution device, and the jet combustion wind air-distribution device includes：
Along axial multiple fluidic channels of the precombustion chamber, the multiple fluidic channel surrounds the axis cloth of the precombustion chamber
Put；And
Jet distribution plenum, it is respectively communicated with the multiple fluidic channel.
2. turbulent burner according to claim 1, it is characterised in that be additionally provided with and penetrate in each fluidic channel
Circulation road air flow regulator, the fluidic channel air flow regulator include airflow direction adjuster, air velocity adjuster
With any one in air-flow eddy flow adjuster this three, either including in this three it is any both combination or including this
The combination of three.
3. turbulent burner according to claim 1, it is characterised in that
The solid fuel powder Geldart-D particle airduct is the bifurcation structure being made up of main pipe and Zhi Ganguan；
The turbulent burner also includes central tube, and the central tube is through the main pipe and stretches into the precombustion chamber；Or
The central tube is set on the main pipe and stretches into the precombustion chamber.
4. turbulent burner according to claim 3, it is characterised in that the turbulent burner also includes：Combustion gas spray feed
Device, the combustion gas spray feed device stretch into the precombustion chamber through the central tube.
5. turbulent burner according to claim 3, it is characterised in that the rotary combustion wind air-distribution device, it is described in
The gas being passed through in heart pipe and/or the jet combustion wind air-distribution device is air, or the gaseous mixture of air and circulating flue gas
Body.
6. turbulent burner according to claim 1, it is characterised in that the axis of the fluidic channel and the precombustion chamber
Between inclination angle be -10~10 °.
7. turbulent burner according to claim 1, it is characterised in that the rotary combustion wind air-distribution device also includes rotation
Turn burning wind louver；The secondary air chamber along the first radial direction airduct of the secondary air chamber radial direction by connecting the rotation
Burn wind louver.
8. turbulent burner according to claim 1, it is characterised in that the jet combustion wind air-distribution device also includes penetrating
Stream burning wind louver；The jet distribution plenum passes through described in the second radial direction airduct connection along the jet distribution plenum radial direction
Jet combustion wind louver.
9. turbulent burner according to claim 1, it is characterised in that also worn including igniter, the igniter
The precombustion chamber is crossed, and is stretched into the precombustion chamber.
10. a kind of boiler, including turbulent burner, it is characterised in that the turbulent burner is according in claim 1 to 9
Turbulent burner described in any one, the turbulent burner are installed on the hearth wall of the boiler, are set on the hearth wall
It is equipped with the hearth wall fluidic channel to be connected with the multiple fluidic channel of the burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720228220.9U CN206709063U (en) | 2017-03-09 | 2017-03-09 | Turbulent burner and there is its boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720228220.9U CN206709063U (en) | 2017-03-09 | 2017-03-09 | Turbulent burner and there is its boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206709063U true CN206709063U (en) | 2017-12-05 |
Family
ID=60469733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720228220.9U Active CN206709063U (en) | 2017-03-09 | 2017-03-09 | Turbulent burner and there is its boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206709063U (en) |
-
2017
- 2017-03-09 CN CN201720228220.9U patent/CN206709063U/en active Active
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