CN204611752U - The ignition structure of " W " flame boiler - Google Patents
The ignition structure of " W " flame boiler Download PDFInfo
- Publication number
- CN204611752U CN204611752U CN201520292217.4U CN201520292217U CN204611752U CN 204611752 U CN204611752 U CN 204611752U CN 201520292217 U CN201520292217 U CN 201520292217U CN 204611752 U CN204611752 U CN 204611752U
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- pulverized coal
- coal channel
- branch road
- micro
- oily
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Abstract
The utility model provides a kind of ignition structure of " W " flame boiler, comprise pulverized coal channel and tertiary-air pipe, also comprise branch road pulverized coal channel and micro-oily pulverized coal ignition device, one end of branch road pulverized coal channel is connected with pulverized coal channel, micro-oily pulverized coal ignition device is arranged on the exit of tertiary-air pipe, and the other end of branch road pulverized coal channel is connected with micro-oily pulverized coal ignition device.To avoid transformation main burner to change to boiler original boiler combustion tissue, meanwhile, reduce oil consumption during black furnace igniting, reduce costs.The utility model belongs to ignition of the boiler field.
Description
Technical field
The utility model relates to a kind of ignition structure, belongs to boiler fuel-economizing field.
Background technology
The conventional Curve guide impeller of existing boiler is all directly transform on boiler main burner, for 600MW unit " W " flame boiler, due to the special clearance type structure of this boiler-burner spout, directly on boiler main burner, carry out transformation easily to change to former boiler combustion tissue, simultaneously, existing burner oil consumption when black furnace is lighted a fire is more, and cost is higher.
Summary of the invention
The purpose of this utility model is: the ignition structure providing a kind of " W " flame boiler, to avoid transformation main burner to change to boiler original boiler combustion tissue, meanwhile, reduces oil consumption during black furnace igniting, reduces costs.
Scheme of the present utility model is as follows: a kind of ignition structure of " W " flame boiler, comprise pulverized coal channel and tertiary-air pipe, also comprise branch road pulverized coal channel and micro-oily pulverized coal ignition device, one end of branch road pulverized coal channel is connected with pulverized coal channel, micro-oily pulverized coal ignition device is arranged on the exit of tertiary-air pipe, and the other end of branch road pulverized coal channel is connected with micro-oily pulverized coal ignition device;
Preferably, downstream pulverized coal channel being positioned at pulverized coal channel and branch road pulverized coal channel connectivity part is provided with switching baffle plate, described branch road pulverized coal channel is also provided with switching baffle plate, and in tertiary-air pipe, the upstream being positioned at tertiary-air pipe and branch road pulverized coal channel connectivity part is also provided with switching baffle plate;
Preferably, micro-oily pulverized coal ignition device comprises micro-oil gun and oil gun fuel feed pump;
Preferably, branch road pulverized coal channel is provided with expansion joint;
Preferably, branch road pulverized coal channel is provided with reducing.
The utility model compared with prior art, major advantage installs micro-oily pulverized coal ignition device additional at tertiary-air pipe air outlet place, without the need to transforming the main burner of boiler, but set up separately igniter and light a fire, avoid transformation main burner to change to boiler original boiler combustion tissue, achieve black furnace and start overall process tiny-oil ignition, igniting coal powder density is easier to control, and burn-off rate is higher.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below with reference to accompanying drawings the utility model is described in further detail,
Embodiment 1:
With reference to Fig. 1, a kind of ignition structure of " W " flame boiler described in the present embodiment, comprising:
Pulverized coal channel 1, tertiary-air pipe 2, branch road pulverized coal channel 3 and micro-oily pulverized coal ignition device 4, micro-oily pulverized coal ignition device 4 comprises micro-oil gun 41 and oil gun fuel feed pump 42, one end of branch road pulverized coal channel 3 is connected with pulverized coal channel 1, micro-oily pulverized coal ignition device 4 is arranged on the exit of tertiary-air pipe 2, and the other end of branch road pulverized coal channel 3 is connected with micro-oily pulverized coal ignition device 4, downstream pulverized coal channel 1 being positioned at pulverized coal channel 1 and branch road pulverized coal channel 3 connectivity part is provided with and switches baffle plate 5, branch road pulverized coal channel 3 is also provided with and switches baffle plate 5, in tertiary-air pipe 2, the upstream being positioned at tertiary-air pipe 2 and branch road pulverized coal channel 3 connectivity part is also provided with and switches baffle plate 5, branch road pulverized coal channel 3 is also provided with expansion joint 6 and reducing 7, to ensure the uniformity of coal dust and to adapt to the sinking of boiler.
Claims (6)
1. the ignition structure of " W " flame boiler, comprise pulverized coal channel (1) and tertiary-air pipe (2), it is characterized in that, also comprise branch road pulverized coal channel (3) and micro-oily pulverized coal ignition device (4), one end of branch road pulverized coal channel (3) is connected with pulverized coal channel (1), micro-oily pulverized coal ignition device (4) is arranged on the exit of tertiary-air pipe (2), and the other end of branch road pulverized coal channel (3) is connected with micro-oily pulverized coal ignition device (4).
2. the ignition structure of " W " flame boiler according to claim 1, it is characterized in that: downstream pulverized coal channel (1) being positioned at pulverized coal channel (1) and branch road pulverized coal channel (3) connectivity part is provided with and switches baffle plate (5), described branch road pulverized coal channel (3) is also provided with and switches baffle plate (5).
3. the ignition structure of " W " flame boiler according to claim 1 or 2, is characterized in that: in tertiary-air pipe (2), is positioned at tertiary-air pipe (2) and is also provided with the upstream of branch road pulverized coal channel (3) connectivity part and switches baffle plate (5).
4. the ignition structure of " W " flame boiler according to claim 1, is characterized in that: micro-oily pulverized coal ignition device (4) comprises micro-oil gun (41) and oil gun fuel feed pump (42).
5. the ignition structure of " W " flame boiler according to claim 1, is characterized in that: branch road pulverized coal channel (3) is provided with expansion joint (6).
6. the ignition structure of " W " flame boiler according to claim 1, is characterized in that: branch road pulverized coal channel (3) is provided with reducing (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520292217.4U CN204611752U (en) | 2015-05-08 | 2015-05-08 | The ignition structure of " W " flame boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520292217.4U CN204611752U (en) | 2015-05-08 | 2015-05-08 | The ignition structure of " W " flame boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204611752U true CN204611752U (en) | 2015-09-02 |
Family
ID=53964310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520292217.4U Active CN204611752U (en) | 2015-05-08 | 2015-05-08 | The ignition structure of " W " flame boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204611752U (en) |
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2015
- 2015-05-08 CN CN201520292217.4U patent/CN204611752U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |