CN206207406U - Pulverized-coal fired boiler burner - Google Patents
Pulverized-coal fired boiler burner Download PDFInfo
- Publication number
- CN206207406U CN206207406U CN201621307161.6U CN201621307161U CN206207406U CN 206207406 U CN206207406 U CN 206207406U CN 201621307161 U CN201621307161 U CN 201621307161U CN 206207406 U CN206207406 U CN 206207406U
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- China
- Prior art keywords
- air
- main burning
- tertiary
- sleeve
- pulverized
- 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.)
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Abstract
The utility model is related to boiler, especially a kind of pulverized-coal fired boiler burner.Including main burning sleeve, main burning sleeve is externally provided with Secondary Air sleeve, the main burning mouthful of main burning sleeve and the overfiren air port of Secondary Air are Open architecture, and tertiary-air pipe is provided with the main burning sleeve, and the tertiary-air pipe is affixed with main burning sleeve in entrance point.The utility model is forcibly fed into tertiary air by tertiary-air pipe, improves burning condition, fuel is burnt completely, improves heat utilization rate, reduces cost；Modifying agent is sprayed into by modifying agent jet pipe, the discharge of PM2.5 is reduced, makes emission compliance.
Description
Technical field
The utility model is related to pulverized-coal fired boiler, particularly a kind of pulverized-coal fired boiler burner.
Background technology
At present, it is simple Secondary Air structure to apply the burner in pulverized-coal fired boiler most of, flame from after burner ejection, by
Few in the oxygen-supplying amount of Secondary Air and cause incomplete combustion, thermal loss is big, discharges exceeded.
Utility model content
In order to solve the above technical problems, a kind of fuel of the utility model offer being capable of clean-burning pulverized-coal fired boiler burning
Mouth.
The utility model solve its technical problem use technical scheme be：
A kind of pulverized-coal fired boiler burner, including main burning sleeve, main burning sleeve are externally provided with Secondary Air sleeve, main burning set
The main burning mouthful of cylinder and the overfiren air port of Secondary Air are Open architecture, and tertiary air is provided with the main burning sleeve
Pipe, the tertiary-air pipe is affixed with main burning sleeve in entrance point；Main burning sleeve is provided with modifying agent jet pipe.
Using the utility model of above-mentioned technical proposal, compared with prior art, beneficial effect is：
Tertiary air is forcibly fed into by tertiary-air pipe, improves burning condition, fuel is burnt completely, improve heat energy utilization
Rate, reduces cost；Modifying agent is sprayed into by modifying agent jet pipe, the discharge of PM2.5 is reduced, makes emission compliance.
Further, prioritization scheme of the present utility model is：
The outlet air end of the tertiary-air pipe is Open architecture.
The air outlet of the tertiary-air pipe outlet air end is conical structure.
The outlet air end of the tertiary-air pipe is enclosed construction, and the end face of the outlet air end protrudes the main burning of main burning sleeve
Mouth end face, the circumference of tertiary-air pipe protuberance is provided with the nozzle connected with the tertiary-air pipe.
The nozzle is multiple, is evenly arranged.
Brief description of the drawings
Fig. 1 is the main structure diagram of the utility model embodiment；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is that tertiary-air pipe outlet air end is Open architecture schematic diagram；
Fig. 4 is the left view of Fig. 3；
In figure：Tertiary-air pipe 1；Tertiary-air pipe protuberance 1-1；Tertiary air outlet air end 1-2；Tertiary air orifice 1-3；Main burning set
Cylinder 2；Main burning muff joint 2-1；Main burning mouthful 2-2；Secondary Air sleeve 3；Secondary Air muff joint 3-1；Overfiren air port 3-2；
Nozzle 4；Modifying agent jet pipe 5.
Specific embodiment
The utility model is described in detail in detail with reference to the accompanying drawings and examples.
Referring to Fig. 1, Fig. 2, a kind of pulverized-coal fired boiler burner, by main burning sleeve 2, Secondary Air sleeve 3, tertiary-air pipe 1, spray
Mouth 4, modifying agent jet pipe 5 are constituted, and the main burning mouthful 2-2 of main burning sleeve 2 is Open architecture, the entrance point of main burning sleeve 2
Modifying agent jet pipe 5 is provided with, modifying agent jet pipe 5 is connected with main burning sleeve 2, entrance point is provided with main burning muff joint 2-1；Main combustion
Burn sleeve 2 and be externally provided with Secondary Air sleeve 3, Secondary Air sleeve 3 is welded to connect with main burning sleeve 2 in entrance point, Secondary Air sleeve 3
Overfiren air port 3-2 be Open architecture, the entrance point of Secondary Air sleeve 3 is provided with Secondary Air muff joint 3-1, is sent for connecting
Airduct；Tertiary-air pipe 1 is provided with main burning sleeve 2, tertiary-air pipe 1 is welded to connect in entrance point with main burning sleeve 2；Tertiary air
The outlet air end of pipe 1 is enclosed construction, the end face of the main burning mouthful 2-2 of the end face protrusion main burning sleeve 2 of outlet air end, tertiary air
The circumference of the protuberance 1-1 of pipe 2 is provided with multiple nozzles 4 being evenly arranged, and nozzle 4 is connected with tertiary-air pipe 1.
Referring to Fig. 3, Fig. 4, the tertiary air outlet air end 1-2 of tertiary-air pipe 1 is Open architecture, and tertiary air orifice 1-3 is circular cone
Shape structure.
The utility model operationally, flammable mixed gas is sent into by main burning sleeve 2, is sent into Secondary Air sleeve 3
It is secondary with combination burning, tertiary air is forcibly fed into by tertiary-air pipe 1, improve burning condition, make burning completely, heat is improved, row
Unconventional and unrestrained mark, spraying into modifying agent by modifying agent jet pipe 5 can reduce the discharge of PM2.5.
The preferably feasible embodiment of the utility model is the foregoing is only, not thereby limits to power of the present utility model
Sharp scope, the equivalent structure change that all utilization the utility model specifications and accompanying drawing content are made, is both contained in the utility model
Interest field within.
Claims (5)
1. a kind of pulverized-coal fired boiler burner, including main burning sleeve, main burning sleeve is externally provided with Secondary Air sleeve, main burning sleeve
Main burning mouthful and the overfiren air port of Secondary Air be Open architecture, it is characterised in that：Three are provided with the main burning sleeve
Secondary airduct, the tertiary-air pipe is affixed with main burning sleeve in entrance point；Main burning sleeve is provided with modifying agent jet pipe.
2. pulverized-coal fired boiler burner according to claim 1, it is characterised in that：The outlet air end of the tertiary-air pipe is opening
Formula structure.
3. pulverized-coal fired boiler burner according to claim 2, it is characterised in that：The air outlet of the tertiary-air pipe outlet air end
It is conical structure.
4. pulverized-coal fired boiler burner according to claim 1, it is characterised in that：The outlet air end of the tertiary-air pipe is closing
Formula structure, the main burning mouthful end face of the end face protrusion main burning sleeve of the outlet air end, the circumference of tertiary-air pipe protuberance be provided with
The nozzle of tertiary-air pipe connection.
5. pulverized-coal fired boiler burner according to claim 4, it is characterised in that：The nozzle is multiple, is evenly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621307161.6U CN206207406U (en) | 2016-12-01 | 2016-12-01 | Pulverized-coal fired boiler burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621307161.6U CN206207406U (en) | 2016-12-01 | 2016-12-01 | Pulverized-coal fired boiler burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206207406U true CN206207406U (en) | 2017-05-31 |
Family
ID=58754124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621307161.6U Active CN206207406U (en) | 2016-12-01 | 2016-12-01 | Pulverized-coal fired boiler burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206207406U (en) |
-
2016
- 2016-12-01 CN CN201621307161.6U patent/CN206207406U/en active Active
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Legal Events
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| GR01 | Patent grant |