CN213395297U - Combustor with reduce nitrogen oxide emission subassembly - Google Patents
Combustor with reduce nitrogen oxide emission subassembly Download PDFInfo
- Publication number
- CN213395297U CN213395297U CN202021830437.5U CN202021830437U CN213395297U CN 213395297 U CN213395297 U CN 213395297U CN 202021830437 U CN202021830437 U CN 202021830437U CN 213395297 U CN213395297 U CN 213395297U
- Authority
- CN
- China
- Prior art keywords
- pipe
- air
- air inlet
- inlet pipe
- combustion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a burner with a component for reducing nitrogen oxide emission, which comprises a base, a premixing box is fixed at the upper end of the base, a fan is arranged at one side of the premixing box, an air purifier is arranged at the other side of the premixing box, an air inlet pipe and an air outlet pipe are respectively arranged at the side wall of the premixing box, and an air outlet of the fan is communicated with one end of the air inlet pipe, the utility model mainly communicates the burning pipe and the premixing box through a return pipe, and the return pipe, the air inlet pipe and the air inlet pipe are respectively provided with an electric butterfly valve which respectively carries out algorithm adjustment on smoke return flow, combustion-supporting air quantity and gas quantity, so that part of smoke generated by burning flows back to the inside of the premixing box, the gas and the returned smoke are fully mixed with air and then carry out secondary burning, thereby reducing burning products, reduce the generation of nitrogen oxides in the flue gas to a certain extent.
Description
Technical Field
The utility model relates to a boiler burner technical field specifically is a combustor with reduce nitrogen oxide emission subassembly.
Background
Boiler burner refers to the combustor of using on the boiler, boiler burner is the most important equipment in the supporting auxiliary engine of fuel gas boiler, boiler burner mainly divide into fuel burner and gas burner and fuel combustor, the combustor can divide into air supply system from realizing the function, ignition system, monitoring system, combustion system and electric control system, and the majority only adopts two electric butterfly valve control in the combustion system of current combustor, adjust flue gas backward flow volume and gas volume respectively, combustion-supporting fan's amount of wind is unable to be adjusted, make the flue gas of gas and backward flow unable and air intensive mixing, make the output of nitrogen oxide increase, lead to the nitrogen oxide emission too high, the polluted environment, therefore we need to propose a combustor with the subassembly that reduces nitrogen oxide emission.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a combustor with reduce nitrogen oxide emission subassembly, through the theory of operation of combustor, can solve because of the combustion system of current combustor in the majority only adopt two electric butterfly valve control, adjust flue gas backward flow volume and gas volume respectively, combustion fan's the unable regulation of amount of wind for the flue gas of gas and backward flow can't with the air intensive mixing, make the output of nitrogen oxide increase, lead to the nitrogen oxide emission too high, the problem of polluted environment.
In order to achieve the above object, the utility model provides a following technical scheme: a burner with a component for reducing the emission of nitrogen oxides comprises a base, wherein a premixing box is fixed at the upper end of the base, a fan is arranged on one side of the premixing box, an air purifier is arranged on the other side of the premixing box, an air inlet pipe and an air outlet pipe are respectively arranged on the side wall of the premixing box, an air outlet of the fan is communicated with one end of the air inlet pipe, an air outlet of the air purifier is communicated with one end of the air inlet pipe, a combustion pipe is sleeved at one end of the air outlet pipe, one end of the combustion pipe is fixed with the air outlet pipe through a fixing block, a return pipe is arranged on the side wall of the combustion pipe, one end of the return pipe is communicated with the inside of the premixing box, electric butterfly valves are respectively arranged on the return pipe, the air inlet pipe and, one side of separation otter board is provided with ignition assembly, the inner wall of burning pipe is provided with metal fiber net, ignition assembly is located metal fiber net's inside.
Preferably, the fixed block is annularly arranged, and the inner wall of the fixed block is welded with the outer wall of the air outlet pipe.
Preferably, the outer wall of one end of the combustion pipe is provided with an external thread section, and one side of the fixing block is provided with a screw hole for the external thread section to be screwed.
Preferably, the return pipe is arranged in a U shape, one end of the return pipe is located between the air inlet pipe and the air inlet pipe, and the other end of the return pipe is located at the other end of the combustion pipe.
Preferably, the ignition assembly comprises an ignition needle and an ignition rod, and one end of the ignition needle is attached to one side of the ignition rod.
Preferably, the length of the metal fiber net is two thirds of the length of the combustion pipe, and one end of the metal fiber net is attached to one end of the air outlet pipe.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model mainly communicates the combustion pipe with the premixing box through the return pipe, and the return pipe, the air inlet pipe and the air inlet pipe are all provided with the electric butterfly valves, and the three electric butterfly valves respectively carry out algorithm adjustment on the smoke return flow, the combustion-supporting air quantity and the gas quantity, so that part of smoke generated by combustion flows back to the inside of the premixing box, the gas and the returned smoke are fully mixed with the air and then are combusted secondarily, incomplete combustion products in the combustion process are reduced, and the generation of nitrogen oxides in the smoke is reduced to a certain extent;
2. the utility model discloses the outer wall of the outlet duct that sets up is fixed with the fixed block, and combustion tube and fixed block threaded connection, and the dismantlement of the combustion tube of being convenient for brings convenience to a certain extent for the maintenance and the change of combustor.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a sectional view of the combustion pipe of the present invention.
In the figure: 1. a base; 2. a fan; 3. a premix tank; 4. an air inlet pipe; 5. an electric butterfly valve; 6. an air inlet pipe; 7. an air purifier; 8. an air inlet pipe; 9. a return pipe; 10. an air outlet pipe; 11. a fixed block; 12. an external threaded section; 13. a combustion tube; 14. blocking the screen plate; 15. an ignition assembly; 16. a metal fiber web.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The same reference numbers in different drawings identify the same or similar elements; it should be further understood that terms such as "first," "second," "third," "upper," "lower," "front," "rear," "inner," "outer," "end," "portion," "section," "width," "thickness," "zone," and the like, may be used solely for convenience in reference to the figures and to aid in describing the invention, and are not intended to limit the invention.
Referring to fig. 1-3, the present invention provides a technical solution: a burner with a component for reducing nitrogen oxide emission comprises a base 1, a premixing box 3 is fixed at the upper end of the base 1, a fan 2 is arranged at one side of the premixing box 3, an air purifier 7 is arranged at the other side of the premixing box 3, an air inlet pipe 6, an air inlet pipe 4, an air inlet pipe 8 and an air outlet pipe 10 are respectively arranged on the side wall of the premixing box 3, an air outlet of the fan 2 is communicated with one end of the air inlet pipe 4, an air outlet of the air purifier 7 is communicated with one end of the air inlet pipe 8, a combustion pipe 13 is sleeved at one end of the air outlet pipe 10, one end of the combustion pipe 13 is fixed with the air outlet pipe 10 through a fixing block 11, the fixing block 11 is arranged in an annular shape, the inner wall of the fixing block 11 is welded with the outer wall of the air outlet pipe 10, an external thread section 12 is arranged on the outer, convenience is brought to maintenance and replacement of the burner to a certain extent;
a return pipe 9 is arranged on the side wall of the combustion pipe 13, one end of the return pipe 9 is communicated with the inside of the premixing box 3, the return pipe 9 is arranged in a U shape, one end of the return pipe 9 is positioned between the air inlet pipe 6 and the air inlet pipe 8, and the other end of the return pipe 9 is positioned at the other end of the combustion pipe 13, so that smoke combusted by the combustion pipe 13 can conveniently return to the inside of the premixing box 3;
the backflow pipe 9, the air inlet pipe 4 and the air inlet pipe 6 are all provided with electric butterfly valves 5, one end of the air outlet pipe 10 is provided with a blocking screen plate 14, one side of the blocking screen plate 14 is provided with an ignition assembly 15, the ignition assembly 15 comprises an ignition needle and an ignition rod, one end of the ignition needle is attached to one side of the ignition rod, the inner wall of the combustion pipe 13 is provided with a metal fiber net 16, the ignition assembly 15 is located inside the metal fiber net 16, the length of the metal fiber net 16 is two thirds of the length of the combustion pipe 13, one end of the metal fiber net 16 is attached to one end of the air outlet pipe 10, the side wall of the metal fiber net 16 is provided with through holes communicated with the backflow pipe 9, the metal fiber net 16 mainly utilizes the uniform air permeability of metal fiber fabrics and the uniform mixing of gas and air, and the;
it should be noted that the model number of the fan 2 is 4-685A, and the parameters are: the power is 2.2kW, the voltage is 220V, and the air volume is 5637M3The total pressure is 764Pa, and the rotating speed is 1450 r/min; the air purifier 7 is of the type KJ305F-PAC1101W, and has the corresponding parameters: particulate CADR number 305m3H, particulate matter purification amount P4, applicable area 21m3-36m3。
The working principle is as follows: with burning tube 13 and premixing case 3 through back flow 9 intercommunication, and back flow 9, all set up electric butterfly valve 5 on air-supply line 4 and the intake pipe 6, respectively to flue gas reflux volume through three electric butterfly valve 5, the combustion-supporting amount of wind, the gas volume carries out the algorithm and adjusts, make the flue gas that partly burning produced in burning tube 13 return to premixing case 3's inside through back flow 9, carry out the postcombustion after making the flue gas of gas and backward flow and air intensive mixing, reduce the incomplete product of burning among the combustion process, reduce nitrogen oxide's in the flue gas production to a certain extent, thereby reduce nitrogen oxide's content in the flue gas.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a combustor with reduce nitrogen oxide emission volume subassembly, includes base (1), its characterized in that: the air purifier is characterized in that a premixing box (3) is fixed at the upper end of the base (1), a fan (2) is arranged on one side of the premixing box (3), an air purifier (7) is arranged on the other side of the premixing box (3), an air inlet pipe (4), an air inlet pipe (8) and an air outlet pipe (10) are respectively arranged on the side wall of the premixing box (3), an air outlet of the fan (2) is communicated with one end of the air inlet pipe (4), an air outlet of the air purifier (7) is communicated with one end of the air inlet pipe (8), a combustion pipe (13) is sleeved at one end of the air outlet pipe (10), one end of the combustion pipe (13) is fixed with the air outlet pipe (10) through a fixing block (11), a return pipe (9) is arranged on the side wall of the combustion pipe (13), one end of the return pipe (9) is communicated with the inside of the premixing box, all be provided with electric butterfly valve (5) on back flow (9), air-supply line (4) and intake pipe (6), the one end of outlet duct (10) is provided with separation otter board (14), one side of separation otter board (14) is provided with ignition assembly (15), the inner wall of combustion tube (13) is provided with metal fiber net (16), ignition assembly (15) are located the inside of metal fiber net (16).
2. A burner with an assembly for reducing emissions of oxides of nitrogen according to claim 1, wherein: the fixed block (11) is arranged in an annular shape, and the inner wall of the fixed block (11) is welded with the outer wall of the air outlet pipe (10).
3. A burner with an assembly for reducing emissions of oxides of nitrogen according to claim 1, wherein: the outer wall of one end of the combustion pipe (13) is provided with an external thread section (12), and one side of the fixing block (11) is provided with a screw hole for screwing the external thread section (12).
4. A burner with an assembly for reducing emissions of oxides of nitrogen according to claim 1, wherein: the return pipe (9) is arranged in a U shape, one end of the return pipe (9) is positioned between the air inlet pipe (6) and the air inlet pipe (8), and the other end of the return pipe (9) is positioned at the other end of the combustion pipe (13).
5. A burner with an assembly for reducing emissions of oxides of nitrogen according to claim 1, wherein: the ignition component (15) comprises an ignition needle and an ignition rod, and one end of the ignition needle is attached to one side of the ignition rod.
6. A burner with an assembly for reducing emissions of oxides of nitrogen according to claim 1, wherein: the length of the metal fiber net (16) is two thirds of the length of the combustion pipe (13), and one end of the metal fiber net (16) is attached to one end of the air outlet pipe (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021830437.5U CN213395297U (en) | 2020-08-28 | 2020-08-28 | Combustor with reduce nitrogen oxide emission subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021830437.5U CN213395297U (en) | 2020-08-28 | 2020-08-28 | Combustor with reduce nitrogen oxide emission subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213395297U true CN213395297U (en) | 2021-06-08 |
Family
ID=76211765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021830437.5U Active CN213395297U (en) | 2020-08-28 | 2020-08-28 | Combustor with reduce nitrogen oxide emission subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213395297U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251655A (en) * | 2021-11-23 | 2022-03-29 | 上海工程技术大学 | Low-nitrogen combustor for segmented circulating gas |
-
2020
- 2020-08-28 CN CN202021830437.5U patent/CN213395297U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251655A (en) * | 2021-11-23 | 2022-03-29 | 上海工程技术大学 | Low-nitrogen combustor for segmented circulating gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205592954U (en) | One -level gas injection type low NOx burner | |
| CN213395297U (en) | Combustor with reduce nitrogen oxide emission subassembly | |
| CN110631011A (en) | Tertiary air mixing gas combustion device | |
| CN201531883U (en) | Full-automatic integrated gas burner with low calorific value | |
| CN201697100U (en) | Biomass high temperature fume gasification combined fire coal boiler | |
| CN2909015Y (en) | Low heat value gas fuel burner | |
| CN1044281C (en) | Adjustable concentration low load automatic smooth burning and slag-bonding protective device for coal powder furnace | |
| CN205227319U (en) | Board -like combustor system of full premix lurex | |
| CN212339653U (en) | High-efficiency water heater fully utilizing oxygen | |
| CN214094482U (en) | Improved steam injection boiler burner and control system thereof | |
| CN211084060U (en) | Small-size full premix frequency conversion gas combustion engine | |
| CN207455593U (en) | Suitable for the energy-saving low-NOx combustor of biomass marsh gas | |
| CN208349290U (en) | Multisection type all-premixing burner with smoke reflux device | |
| CN113654045A (en) | Internal and external double rotational flow grading low nitrogen gas burner | |
| CN201513882U (en) | Controllable eddy wide coal micro-oil ignition burner | |
| CN217540727U (en) | Three-oil gun fuel burner | |
| CN112050225A (en) | Garbage incinerator burner control system | |
| CN215597257U (en) | Small dimethyl ether gas burner | |
| CN216693546U (en) | Burner adopting multiple burners to burn simultaneously | |
| CN220249984U (en) | Multistage injection low-nitrogen combustion head | |
| CN2295912Y (en) | Vortex combustor | |
| CN213453711U (en) | Boiler low-nitrogen combustion adjusting device | |
| CN215175033U (en) | Dry-combustion 30mg low-nitrogen gas burner | |
| CN210772146U (en) | Pulverized coal burner with large adjusting ratio | |
| CN221122223U (en) | Flow-adjustable oxygen-enriched composite burner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |