CN207351217U - Reverse-flow type burner block and a kind of reverse-flow type burner - Google Patents
Reverse-flow type burner block and a kind of reverse-flow type burner Download PDFInfo
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- CN207351217U CN207351217U CN201721442663.4U CN201721442663U CN207351217U CN 207351217 U CN207351217 U CN 207351217U CN 201721442663 U CN201721442663 U CN 201721442663U CN 207351217 U CN207351217 U CN 207351217U
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Abstract
Reverse-flow type burner block provided by the utility model, including burner block body, burner block body is arranged on the furnace wall of kiln, fuel injection passages are provided with burner block body, fuel injection passages run through burner block body, fuel injection passages include the installation cavity, reflux ejection cavity and spray chamber being sequentially communicated, and installation cavity is used to install burner head；Spray chamber further includes at least one water conservancy diversion flue, with being connected inside kiln, the other end is connected with reflux ejection cavity for one end of water conservancy diversion flue with being connected inside kiln；Reverse-flow type burner provided by the utility model, using above-mentioned reverse-flow type burner block.The reverse-flow type burner block of the utility model, can make full use of kiln inner flue gas of the stove to preheat reverse-flow type burner block, while improve the cycle efficieny of kiln interior air-flow；The reverse-flow type burner of the utility model, can improve heating quality of the industrial combustion furnace to product, reduce flame temperature, save the energy, in addition can also reduce the temperature of the flue gas of discharge, reduce pollution of the emission to environment.
Description
Technical field
Industrial combustion furnace field is the utility model is related to, refers in particular to reverse-flow type burner block and a kind of reverse-flow type burner.
Background technology
Fuel burner nozzle is a kind of burner on industrial fuel stove, for distributing fuel and combustion air, and
Mixed gas is sprayed into after-combustion, it is applied than wide on tunnel oven, roller kilns.With the continuous improvement of living standard,
People are increasing to the demand of burned product, and in order to improve the production capacity of tunnel oven, roller kilns, the manufacturer of industrial fuel stove is by tunnel
Road kiln, the kiln body of roller kilns transform bigger is wider, but which results in original fuel burner nozzle can not be suitable for improved kiln
Body, only coordinates improved kiln body by improving burner power and increase burner quantity, will appear from gas stream in the stove and deteriorates, in stove
The problems such as pressure control husband's weighing apparatus, temperature uniformity is poor, seriously affect the quality of burned product, further, since furnace gas burning is not
Fully, the NO in combustion product is causedXContent increases, and discharge of combustion products can cause environment larger pollution into air,
Therefore there is an urgent need for a kind of burner suitable for large-scale kiln body.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, there is provided a kind of simple in structure, energy-efficient returns
Streaming burner block.
In order to achieve the above object, the utility model uses following technical scheme：Reverse-flow type burner block, including burner block sheet
Body, the burner block body are arranged on the furnace wall of kiln, and fuel injection passages, the combustion are provided with the burner block body
Material injection channel runs through the burner block body, and fuel injection passages include the installation cavity, reflux ejection cavity and spray being sequentially communicated
Chamber is penetrated, the installation cavity is used to install burner head；The spray chamber further includes at least one water conservancy diversion cigarette with being connected inside kiln
Road, with being connected inside kiln, the other end is connected with the reflux ejection cavity for one end of the water conservancy diversion flue.
Compared with prior art, the reverse-flow type burner block of the utility model, by setting at least one connection reflux injection
The water conservancy diversion flue of chamber, the flue gas in kiln is inhaled into reflux ejection cavity by water conservancy diversion flue, the gas ejected with burner head
Body sprays in burner block to kiln again after being mixed in spray chamber, thus make full use of kiln inner flue gas of the stove to reverse-flow type burner block into
Row preheating, while the cycle efficieny of kiln interior air-flow is improved, promote kiln interior air-flow to be flowed to various dimensions, it is uniform to improve furnace temperature
Property.
Preferably, the water conservancy diversion flue is direct current flue, it is described reflux ejection cavity it is interior without leave connect installation cavity one end to
One end of connection spray chamber is gradually reduced, and the other end of the water conservancy diversion flue is connected with the sidepiece of the reflux ejection cavity.According to
Venturi effect, the internal diameter that the reflux ejection cavity in burner block is set is designed as from connection installation cavity one end to connection spray chamber one
End is gradually reduced, and from the gas restricted flow that installation cavity ejects in the flow section of diminution, the flow velocity of gas can be accelerated,
And swiftly flowing gas nearby can produce negative pressure, so that accelerating inside reflux ejection cavity with forming differential pressure state in kiln
The efficiency that water conservancy diversion flue flows back the flue gas suction in kiln in ejection cavity.
Preferably, the water conservancy diversion flue is set from close to described kiln one end to close to the inclination of described reflux ejection cavity one end
Put, the water conservancy diversion flue and the angle theta of the installation cavity central axes are 5-45 °, and this setup can improve the water conservancy diversion cigarette
Back-flow velocity of the road to kiln inner flue gas of the stove.
Preferably, the reflux ejection cavity is round table-like that several water conservancy diversion flues are around the reflux equidistant ring-type of ejection cavity
Set, it is ensured that the flue gas in kiln on different dimensions is inhaled into reflux ejection cavity by water conservancy diversion flue, while is ensured in kiln
The gas mixing that ejects of flue gas and burner head evenly.
Preferably, the water conservancy diversion flue is provided with 4-8, and the water conservancy diversion flue is cylindric, its a diameter of 10-30mm.
Preferably, the spray chamber includes mixing chamber and diffusion chamber, and the mixing chamber is connected with the reflux ejection cavity, institute
State diffusion chamber one end to connect with the mixing chamber, the other end inside the kiln with connecting；The inner wall of the diffusion chamber with it is described
The angle β of installation cavity central axes is 1-20 °, and this setup makes the inner wall of the diffusion chamber play guiding role to air-flow,
Ensure that air-flow is diffused in kiln in multiple dimensions with radial.
Another purpose of the utility model is to provide a kind of reverse-flow type burner using above-mentioned reverse-flow type burner block, it is wrapped
Burner head and reverse-flow type burner block are included, the burner head is detachably arranged on the installation cavity.
Preferably, burning cover body is further included；The burner head includes burner body, ignitor and gas-supplying structure；It is described
Burn the hollow structure that cover body is both ends open, it is internally formed carborundum combustion chamber, and the burning cover body is arranged on the peace
In behaveing affectedly, and run through the installation cavity, the burner body end is removably inserted into the carborundum combustion chamber；The point
Thermoelectricity pole and gas-supplying structure are arranged in the burner body, and the gas-supplying structure is used to be passed through sky to the carborundum combustion chamber
The mixed gas of gas and fuel, the ignitor are used to light mixed gas.
Preferably, the gas-supplying structure includes air inlet component and fuel air component；Also set in the burner body
There is a Whirl deposite tank disk, the Whirl deposite tank disk is equipped with stomata, and it is equal that the burner body inner cavity is separated into air by the Whirl deposite tank disk
Flow chamber and gas mixing chamber；The air inlet component includes air mass flow cock, and the air mass flow cock is used for and air
Conduit connects, and air is passed through to flow chamber to the air；The fuel air component includes fuel conductor, the fuel conductor
Gas spray head be arranged on the gas mixing intracavitary, the fuel conductor is used to be passed through combustion gas to the gas mixing chamber.
By setting the Whirl deposite tank disk, and the burner body inner cavity is separated into air using Whirl deposite tank disk and flows chamber
And gas mixing chamber, air-stable can be made to flow to gas mixing chamber and be uniformly mixed with fuel, so that flame stabilization burns, kept away
Exempt from, since gas flow rates are too fast or tempering situation that is excessively slow and occurring, to produce noise, detonation, in addition it is flame-out.
Preferably, detection device is further included, the detection device is arranged on the burner body, and runs through the air
Chamber is flowed, the detection device is used for detection gas mixing chamber and the flame of carborundum burning Indoor Combustion.
Compared with prior art, a kind of reverse-flow type burner of the utility model, can improve industrial combustion furnace and product is added
Thermal mass, reduces flame temperature, saves the energy, fuel combustion in addition can be made more abundant, so as to reduce the oxygen in kiln inner flue gas of the stove
Content, suppresses NO in combustion processXGeneration, while reduce the temperature of the flue gas of discharge, reduce pollution of the emission to environment.
Brief description of the drawings
Fig. 1 is the schematic diagram of reverse-flow type burner block；
Fig. 2 is the sectional view of reverse-flow type burner block；
Fig. 3 is the sectional view of reverse-flow type burner.
Label declaration：
1 reverse-flow type burner, 2 burner heads, 201 air flow chamber, 202 gas mixing chambers, 21 burner bodies, 22 ignition powers
Pole, 231 air cocks, 232 fuel conductors, 233 gas spray heads, 234 Whirl deposite tank disks, 24 burning cover bodies, the burning of 240 carborundum
Room, 25 flange rings, 3 detection devices, 4 reverse-flow type burner blocks, 41 installation cavitys, 42 reflux ejection cavities, 44 mixing chambers, 45 diffusion chambers,
46 water conservancy diversion flues, 5 furnace walls, 6 kilns.
Embodiment
Below in conjunction with the embodiment of brief description of the drawings the utility model：
Embodiment one
Referring to Fig. 1 to Fig. 2, the reverse-flow type burner block 4 of the present embodiment, including burner block body, the burner block body are set
It is placed on the furnace wall 5 of kiln 6, fuel injection passages is provided with the burner block body, the fuel injection passages runs through institute
Burner block body is stated, fuel injection passages include the installation cavity 41, reflux ejection cavity 42 and spray chamber being sequentially communicated, the installation
Chamber 41 is used to install burner head；The spray chamber is connected with the inside of kiln 6, further includes at least one water conservancy diversion flue 46, described to lead
One end of flow flue 46 is connected with the inside of kiln 6, and the other end is connected with the reflux ejection cavity 42.
The inner wall of the reflux ejection cavity 42 and the angle α of 41 central axes of installation cavity are 10-45 °, its best angle
Scope is 15-30 °.
The water conservancy diversion flue 46 is direct current flue, and interior 41 one end of installation cavity that connects without leave of the reflux ejection cavity 42 is to even
The one end for connecing spray chamber is gradually reduced, and the other end of the water conservancy diversion flue 46 is connected with the sidepiece of the reflux ejection cavity 42.Root
According to Venturi effect, the internal diameter that the reflux ejection cavity 42 in burner block is set is designed as spraying from connection 41 one end of installation cavity to connection
Being gradually reduced for chamber one end is penetrated, from the gas restricted flow that installation cavity 41 ejects in the flow section of diminution, the stream of gas
Speed can be accelerated, and swiftly flowing gas nearby can produce negative pressure, so that 42 inside of reflux ejection cavity is internally formed with kiln 6
Differential pressure state, accelerates water conservancy diversion flue 46 by the efficiency in the flue gas suction reflux ejection cavity 42 in kiln 6.
The water conservancy diversion flue 46 is obliquely installed from close to described 6 one end of kiln to close to 42 one end of the reflux ejection cavity,
The angle theta of the water conservancy diversion flue 46 and 41 central axes of installation cavity is 5-45 °, its best angle scope is 10-37.5 °, this
Kind set-up mode can improve back-flow velocity of the water conservancy diversion flue 46 to flue gas in kiln 6.
The reflux ejection cavity 42 is round table-like, several water conservancy diversion flues 46 are set around the reflux 42 equidistant ring-type of ejection cavity
Put, it is ensured that the flue gas in kiln 6 on different dimensions is inhaled into reflux ejection cavity 42 by water conservancy diversion flue 46, while ensures kiln
The gas mixing that flue gas in 6 is ejected with burner head is evenly.
The water conservancy diversion flue 46 is provided with 4-8, and the water conservancy diversion flue 46 is cylindric, its a diameter of 10-30mm, it is most
Good a diameter of 15-25mm.
The spray chamber includes mixing chamber 44 and diffusion chamber 45, and the mixing chamber 44 is connected with the reflux ejection cavity 42,
Described 45 one end of diffusion chamber is connected with the mixing chamber 44, and the other end is connected with the inside of kiln 6；The diffusion chamber 45 it is interior
Wall and the angle β of 41 central axes of installation cavity are 1-20 °, its best angle scope is 5-15 °；This setup makes described
The inner wall of diffusion chamber 45 plays guiding role to air-flow, it is ensured that air-flow is diffused in kiln 6 in multiple dimensions with radial.
Compared with prior art, the reverse-flow type burner block 4 of the utility model, by setting at least one connection reflux injection
The water conservancy diversion flue 46 of chamber 42, the flue gas in kiln 6 is inhaled into reflux ejection cavity 42 by water conservancy diversion flue 46, is sprayed with burner head
The gas of injection sprays in burner block to kiln 6 again after being mixed in spray chamber, so as to make full use of in kiln 6 flue gas to reflux
Formula burner block 4 is preheated, while improves the cycle efficieny of 6 interior air-flow of kiln, promotes 6 interior air-flow of kiln to be flowed to various dimensions,
Improve temperature uniformity.
Embodiment two
Referring to Fig. 3, another purpose of the utility model is to provide a kind of reverse-flow type using above-mentioned reverse-flow type burner block 4
Burner 1, it includes burner first 2 and reverse-flow type burner block 1, and the burner first 2 is detachably arranged in the installation cavity 41.
The burner first 2 includes burner body 21, ignitor 22 and gas-supplying structure.
Burning cover body 24 is further included, the burning cover body 24 is the hollow structure of both ends open, it is internally formed carborundum
Combustion chamber 240, the burning cover body 24 is arranged in the installation cavity 41, and runs through the installation cavity 41.
21 end of burner body is removably inserted into the carborundum combustion chamber 240；22 He of ignitor
Gas-supplying structure is arranged in the burner body 21, and the gas-supplying structure is used to be passed through air to the carborundum combustion chamber 240
With the mixed gas of fuel, the ignitor 22 is used to light mixed gas.
24 outer end of the burning cover body is fastened on outside the openend of the installation cavity 41, and 24 outer end of the burning cover body is set
There is flange ring 25, the burning cover body 24 is fixed on the burner block 4 by the flange ring 25.
The gas-supplying structure includes air inlet component and fuel air component；Eddy flow is additionally provided with the burner body 21
Wind disk 234, the Whirl deposite tank disk 234 are equipped with stomata, and 21 inner cavity of burner body is separated into sky by the Whirl deposite tank disk 234
Gas flows chamber 201 and gas mixing chamber 202；The air inlet component includes air mass flow cock 231, the air mass flow rotation
Plug 231 is used to be connected with air conduit (not shown), and air is passed through to flow chamber 201 to the air；The fuel into
Pneumatic module includes fuel conductor 232, and the gas spray head 233 of the fuel conductor 232 is arranged in the gas mixing chamber 202,
The fuel conductor 232 is used to be passed through fuel to the gas mixing chamber 202.
The air cock 231 is used to control air to enter the speed for flowing chamber 201 to the air.
The extended line of with respect to two water conservancy diversion flues 46 to the installation cavitys 41 intersects at the gas spray head 233, makes from institute
The fuel that the flue gas that water conservancy diversion flue 46 is back in the reflux ejection cavity 42 is ejected with gas spray head 233 is stated fully to connect
Touch, so as to reduce firing temperature, save the energy.
21 inner cavity of burner body is separated into sky by setting the Whirl deposite tank disk 234, and using Whirl deposite tank disk 234
Gas flows chamber 201 and gas mixing chamber 202, and air-stable can be made to flow to gas mixing chamber 202 and be uniformly mixed with fuel, so that
Flame stabilization is burnt, avoid, since gas flow rates are too fast or tempering situation that is excessively slow and occurring, producing noise, detonation,
It is even flame-out.
The direction of the interior radial direction reflux ejection cavity 42 of the burning cover body 24 is gradually reduced, one side of this setup
Face ensures that mixed gas is more concentrated at ejecting outside burning cover body 24, on the other hand facilitates burner body 21 is firm to be fastened on burning
In cover body 24.
Detection device 3 is further included, the detection device 3 is arranged on the burner body 21, and equal through the air
Chamber 201 is flowed, the detection device 3 is used for burned flame in detection gas mixing chamber 202 and carborundum combustion chamber 240.
During using this reverse-flow type burner 1, the reverse-flow type burner block 4 need to be only installed on the furnace wall 5 of kiln 6 i.e., peace
It is convenient to fill, and safeguards simple.
Compared with prior art, a kind of reverse-flow type burner of the utility model, can improve industrial combustion furnace and product is added
Thermal mass, reduces flame temperature, saves the energy, fuel combustion in addition can be made more abundant, so as to reduce the oxygen in kiln inner flue gas of the stove
Content, suppresses NO in combustion processXGeneration, while reduce the temperature of the flue gas of discharge, reduce pollution of the emission to environment.
According to the disclosure and teachings of the above specification, the utility model those skilled in the art can also be to above-mentioned reality
Apply mode make a change and modification.Therefore, the utility model is not limited to embodiment disclosed and described above, right
Some modifications and changes of the utility model should also be as falling into the scope of the claims of the utility model.In addition, to the greatest extent
Some specific terms have been used in pipe this specification, but these terms are merely for convenience of description, not to the utility model
Form any restrictions.
Claims (10)
1. reverse-flow type burner block, including burner block body, the burner block body is arranged on the furnace wall of kiln, the burner block
Fuel injection passages are provided with body, the fuel injection passages run through the burner block body, and fuel injection passages include
Installation cavity, reflux ejection cavity and the spray chamber being sequentially communicated, the installation cavity are used to install burner head；The spray chamber and kiln
Inside connection, it is characterised in that：At least one water conservancy diversion flue is further included, one end of the water conservancy diversion flue is connected with kiln inside,
The other end is connected with the reflux ejection cavity.
2. reverse-flow type burner block according to claim 1, it is characterised in that：The water conservancy diversion flue is direct current flue, described
Reflux ejection cavity it is interior without leave connect installation cavity one end to connection spray chamber one end be gradually reduced, the water conservancy diversion flue it is another
The sidepiece with the reflux ejection cavity is held to be connected.
3. reverse-flow type burner block according to claim 1, it is characterised in that：The water conservancy diversion flue is from close to the kiln one
Hold to close to described reflux ejection cavity one end and be obliquely installed, the water conservancy diversion flue and the angle theta of the installation cavity central axes are 5-
45°。
4. reverse-flow type burner block according to claim 1, it is characterised in that：The ejection cavity that flows back is some to be round table-like
A water conservancy diversion flue is set around the equidistant ring-type of the reflux ejection cavity.
5. reverse-flow type burner block according to claim 1, it is characterised in that：The water conservancy diversion flue is provided with 4-8, described
Water conservancy diversion flue is cylindric, its a diameter of 10-30mm.
6. reverse-flow type burner block according to claim 1, it is characterised in that：The spray chamber includes mixing chamber and diffusion
Chamber, the mixing chamber with it is described reflux ejection cavity connect, described diffusion chamber one end is connected with the mixing chamber, the other end with it is described
Connection inside kiln；The inner wall of the diffusion chamber and the angle β of the installation cavity central axes are 1-20 °.
7. a kind of reverse-flow type burner, including burner head and burner block, it is characterised in that：The burner block is claim 1 to 6 times
Reverse-flow type burner block described in one, the burner head are detachably arranged on the installation cavity.
A kind of 8. reverse-flow type burner according to claim 7, it is characterised in that：Further include burning cover body；
The burner head includes burner body, ignitor and gas-supplying structure；
The burning cover body is the hollow structure of both ends open, it is internally formed carborundum combustion chamber, and the burning cover body is set
In the installation cavity, and run through the installation cavity, the carborundum combustion is removably inserted into the end of the burner body
Burn indoor；
The ignitor and gas-supplying structure are arranged in the burner body, and the gas-supplying structure is used to fire to the carborundum
The mixed gas that room is passed through air and fuel is burnt, the ignitor is used to light mixed gas.
A kind of 9. reverse-flow type burner according to claim 8, it is characterised in that：The gas-supplying structure includes air inlet group
Part and fuel air component；
It is additionally provided with Whirl deposite tank disk in the burner body, the Whirl deposite tank disk is equipped with stomata, and the Whirl deposite tank disk is by the burning
Mouth chamber body is separated into air and flows chamber and gas mixing chamber；
The air inlet component includes air mass flow cock, and the air mass flow cock is used to be connected with air conduit, with to
The air flows chamber and is passed through air；
The fuel air component includes fuel conductor, and the gas spray head of the fuel conductor is arranged on the gas mixing chamber
Interior, the fuel conductor is used to be passed through combustion gas to the gas mixing chamber.
A kind of 10. reverse-flow type burner according to claim 8, it is characterised in that：Further include detection device, the detection dress
Put and be arranged on the burner body, and chamber is flowed through the air, the detection device be used for detection gas mixing chamber and
The flame of carborundum burning Indoor Combustion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721442663.4U CN207351217U (en) | 2017-11-02 | 2017-11-02 | Reverse-flow type burner block and a kind of reverse-flow type burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721442663.4U CN207351217U (en) | 2017-11-02 | 2017-11-02 | Reverse-flow type burner block and a kind of reverse-flow type burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207351217U true CN207351217U (en) | 2018-05-11 |
Family
ID=62353159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721442663.4U Active CN207351217U (en) | 2017-11-02 | 2017-11-02 | Reverse-flow type burner block and a kind of reverse-flow type burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207351217U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111578277A (en) * | 2020-05-08 | 2020-08-25 | 杭州中景科技有限公司 | Low-NOx burner and ultralow-NOx emission combustion method |
-
2017
- 2017-11-02 CN CN201721442663.4U patent/CN207351217U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111578277A (en) * | 2020-05-08 | 2020-08-25 | 杭州中景科技有限公司 | Low-NOx burner and ultralow-NOx emission combustion method |
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