CN207179650U - A kind of powdered coal burner steam input device - Google Patents
A kind of powdered coal burner steam input device Download PDFInfo
- Publication number
- CN207179650U CN207179650U CN201720585525.5U CN201720585525U CN207179650U CN 207179650 U CN207179650 U CN 207179650U CN 201720585525 U CN201720585525 U CN 201720585525U CN 207179650 U CN207179650 U CN 207179650U
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- coal burner
- powdered coal
- powdered
- burner
- interface
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Abstract
A kind of powdered coal burner steam input device is the utility model is related to, including：Powdered coal burner, the jet chimney being connected with powdered coal burner and the protection sleeve pipe being set in outside jet chimney; powdered coal burner is divided into dense survey and light survey along symmetry axis; the dense survey of powdered coal burner is provided with interface; powdered coal burner bottom is provided with fine coal entrance; jet chimney is connected with interface; water vapour enters powdered coal burner by interface, and fine coal enters powdered coal burner by fine coal entrance, and the angle that vapor enters between powdered coal burner direction into powdered coal burner direction and fine coal is 0 ° 30 °.Powdered coal burner steam input device provided by the utility model is simple in construction, efficient, maintenance is convenient, solves the problems, such as that fine coal is sent into air-flow with high-temperature vapor undercompounding, high-temperature vapor air-flow and fine coal in the prior art and interferes.
Description
Technical field
The utility model belongs to coal furnace technical field, and specifically one kind can improve the coal thermal efficiency, reduce NOx generations
Powdered coal burner steam input device.
Background technology
In coal chemical technology, the common methods for improving coal combustion efficiency are：Fine coal is made in coal, in powdered coal burner
Mix, burnt with high-temperature vapor；In general operation is directly to lead high-temperature vapor and fine coal respectively from different pipelines
Enter in powdered coal burner, this method has following weak point：1st, different zones fine coal concentration is different in powdered coal burner, therefore
Fine coal and high-temperature vapor undercompounding, easily generate NOx in combustion in regional area；2nd, high-temperature vapor is defeated
Enter air-flow caused by powdered coal burner and fine coal and be sent into air-flow and easily formed to interfere, influence fine coal and high-temperature vapor
Mixing.
Utility model content
The purpose of this utility model is to be directed to above-mentioned present situation, there is provided a kind of simple in construction, efficient, convenient fine coal combustion of maintenance
Burner steam input device.
The technical solution adopted in the utility model is：A kind of powdered coal burner steam input device, including powdered coal burner,
The jet chimney being connected with powdered coal burner and the protection sleeve pipe being set in outside jet chimney, powdered coal burner are divided into along symmetry axis
Dense survey and light survey, the dense survey of powdered coal burner are provided with interface, and jet chimney is connected with the interface, jet chimney and pulverized coal friring
Angle between device is 0 ° -30 °.
Effect of the present utility model is：Powdered coal burner steam input device provided by the utility model is simple in construction, high
Effect, maintenance are convenient, solve fine coal in the prior art and are sent with high-temperature vapor undercompounding, high-temperature vapor air-flow and fine coal
Enter the problem of air-flow interferes.
Brief description of the drawings
Fig. 1 show a kind of structural representation of powdered coal burner steam input device provided by the utility model.
In figure：1-powdered coal burner, 11-dense survey, 111-interface, 12-light survey, 13-light-dark separation device, 14-
Fine coal entrance, 2-jet chimney, 3-protection sleeve pipe.
Embodiment
Illustrate embodiment of the present utility model below by way of specific instantiation, those skilled in the art can be by this theory
Content disclosed by bright book understands other advantages and effect of the present utility model easily.The utility model can also be by addition
Different embodiments are embodied or practiced, and the various details in this specification can also be based on different viewpoints with answering
With, without departing from it is of the present utility model spirit under carry out various modifications or alterations.
Powdered coal burner steam input device of the present utility model is introduced below in conjunction with the accompanying drawings：
It is a kind of powdered coal burner steam input device provided by the utility model to refer to Fig. 1, including：Powdered coal burner
1st, the jet chimney 2 being connected with powdered coal burner 1 and the protection sleeve pipe 3 being set in outside jet chimney 2.
Referring to Fig. 1, being provided with light-dark separation device 13 in powdered coal burner 1, the bottom of powdered coal burner 1 enters provided with fine coal
Mouth 14, fine coal enter in powdered coal burner 1 from fine coal entrance 14, and the larger fine coal kinetic energy of particle is larger, with light-dark separation device
After 13 contacts, gradually assemble in dense survey in 11, the less fine coal kinetic energy of particle is smaller, gradually assembles in light survey in 12, makes dense survey
11 fine coal concentration higher than it is light survey 12 fine coal concentration, in the present embodiment, the number of light-dark separation device 13 is 3, can be with
Understand ground, the number of light-dark separation device 13 can be increased and decreased according to actual use situation.
The wall of the dense survey 11 of powdered coal burner 1 is provided with the interface 111 with external world's conducting.
The one end of jet chimney 2 is flexibly connected with interface 111, and one end away from powdered coal burner 1 is provided with first flange disk,
Water vapour enters powdered coal burner 1 by interface 111, and vapor enters the direction of powdered coal burner 1 and fine coal enters pulverized coal friring
Angle between the direction of device 1 is 0 ° -30 °, therefore, is not likely to produce between air-flow caused by air-flow caused by vapor and fine coal
Interfere.In the present embodiment, vapor enters the direction of powdered coal burner 1 and fine coal enters the direction of powdered coal burner 1
Between angle be 17 °.
Protection sleeve pipe 3 is set in the outside of jet chimney 2, and one end is fixed with interface 111, and one away from powdered coal burner 1
End is provided with second flange disk.Second flange disk and first flange valve snail bolt are fixed.If jet chimney 2 need to be changed or overhauled, can
Bolt on second flange disk and first flange disk is removed, jet chimney 2 is extracted out, is changed or is overhauled.
In specific works, water vapour is sent into powdered coal burner 1 from jet chimney 2, by fine coal from fine coal entrance 14
Powdered coal burner 1 is sent into, vapor enters the direction of powdered coal burner 1 and fine coal enters between the direction of powdered coal burner 1
Angle is 0 ° -30 °, is not likely to produce and interferes between air-flow caused by air-flow caused by vapor and fine coal；Particle is larger
Fine coal kinetic energy is larger, after being contacted with light-dark separation device 13, gradually it is dense survey 11 in assemble, the less fine coal kinetic energy of particle compared with
It is small, gradually assemble in light survey in 12, making the fine coal concentration of dense survey 11, vapor enters from dense survey higher than the fine coal concentration of light survey 12
Powdered coal burner 1, contribute to being sufficiently mixed for vapor and fine coal, reduce NOx generation, improve efficiency of combustion.If steam pipe
Road 2 need to be changed or overhauled, and can remove the bolt on second flange disk 31 and first flange disk 21, jet chimney 2 is extracted out,
Changed or overhauled.
In this way, powdered coal burner steam input device provided by the utility model is simple in construction, efficient, maintenance is convenient, solution
Fine coal in the prior art of having determined is sent into air-flow with high-temperature vapor undercompounding, high-temperature vapor air-flow and fine coal and interfered
The problem of.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (4)
- A kind of 1. powdered coal burner steam input device, it is characterised in that including：Powdered coal burner and the powdered coal burner The jet chimney of connection and the protection sleeve pipe being set in outside the jet chimney, the powdered coal burner are divided into dense survey along symmetry axis With light survey, the dense survey of the powdered coal burner is provided with interface, and the powdered coal burner bottom is provided with fine coal entrance, the steam pipe Road is connected with the interface, and water vapour enters the powdered coal burner by the interface, and fine coal enters institute by the fine coal entrance State powdered coal burner, the angle that vapor enters the powdered coal burner direction and fine coal enters between the powdered coal burner direction Spend for 0 ° -30 °.
- 2. powdered coal burner steam input device as claimed in claim 1, it is characterised in that described jet chimney one end and institute Interface activity connection is stated, one end away from the powdered coal burner is provided with first flange disk；The protection sleeve pipe is set in described On the outside of jet chimney, described protection sleeve pipe one end is fixed with the interface, and one end away from the interface is provided with second flange disk, The first flange disk and the second flange valve snail bolt are fixed.
- 3. powdered coal burner steam input device as claimed in claim 2, it is characterised in that be provided with the powdered coal burner Light-dark separation device, the light-dark separation device make the fine coal concentration of the dense survey be higher than the fine coal concentration of the light survey.
- 4. powdered coal burner steam input device as claimed in claim 3, it is characterised in that the jet chimney and the powder The angle of coal burner is 17 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720585525.5U CN207179650U (en) | 2017-05-24 | 2017-05-24 | A kind of powdered coal burner steam input device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720585525.5U CN207179650U (en) | 2017-05-24 | 2017-05-24 | A kind of powdered coal burner steam input device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207179650U true CN207179650U (en) | 2018-04-03 |
Family
ID=61733900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720585525.5U Active CN207179650U (en) | 2017-05-24 | 2017-05-24 | A kind of powdered coal burner steam input device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207179650U (en) |
-
2017
- 2017-05-24 CN CN201720585525.5U patent/CN207179650U/en active Active
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