CN207006124U - A kind of Splittable burner structure of station boiler - Google Patents
A kind of Splittable burner structure of station boiler Download PDFInfo
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- CN207006124U CN207006124U CN201720357767.9U CN201720357767U CN207006124U CN 207006124 U CN207006124 U CN 207006124U CN 201720357767 U CN201720357767 U CN 201720357767U CN 207006124 U CN207006124 U CN 207006124U
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- burner
- splittable
- combustion
- tertiary air
- boiler
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Abstract
The utility model discloses a kind of Splittable burner structure of station boiler, using coal gas and tertiary air Splittable burner structure.The beneficial effects of the utility model are embodied in first solves boiler combustion stability and economy problems.Numerous studies and calculating by applicant, current self wind snout three times is found, because coal dust content is few, temperature is low, while wind speed is high（50~55m/s）, position is again away from the high place of hearth combustion central temperature, it is difficult to burn completely.Again because tertiary air combustion efficiency is poor, very big influence is also resulted on combustion stability in stove.On the other hand, coal gas due to ignition heat it is low, easily catch fire, there is steady combustion effect well to boiler.As can be seen here, if can easily be burnt using coal gas, the steady combustion source as tertiary air, you can make up tertiary air burning shortcoming, you can reach preferable tertiary air combustion efficiency and improve boiler combustion stability and economy so as to overall.
Description
Technical field
A kind of Splittable burner structure of station boiler is the utility model is related to, belongs to boiler combustion and design field.
Background technology
The power station Process In A Tangential Firing theory of combustion be by burner hearth corner burner air-flow in burner hearth tangential rotary into
One stable burning circle of contact.Burner is that airflow direction leans on burner hearth central side to fiery side, is then back-fire side by furnace wall side.
The main burner model of station boiler is mainly coal dust spout at present, according to the difference of coal powder density, contains coal
The spout of powder can be divided into First air and three times wind snout, the hot-air without coal dust（350~370 DEG C）Spout is referred to as Secondary Air.
One time wind snout coal powder density is high, commonly referred to as coal burner；Tertiary air is milling waste steam processed, containing accounting for total amount about 10%
Coal dust, commonly referred to as wind snout three times.
The characteristics of tertiary air is that coal dust content is few, and coal dust is thinner, and temperature is low（80~90 DEG C）, ignition is difficult, typically
It is arranged in the superiors of boiler-burner group.
Steelmaking process can produce substantial amounts of blast furnace gas, be that calorific value is relatively low the characteristics of blast furnace gas, but due to gas medium
Itself the characteristics of, easily catch fire.
As fuel burning is mixed in station boiler, mainly play steady combustion, blast furnace gas is generally as independent spout at present
Or it is arranged in overfire air port.
The content of the invention
The technical problems to be solved in the utility model is to provide a kind of combustion that can improve boiler combustion stability and economy
Burner structure, can be with overcome the deficiencies in the prior art.
The technical solution of the utility model is：A kind of Splittable burner structure of station boiler, including gas port, point
Type burner, three times wind snout, dividing plate, burner hearth are cut, described Splittable burner internal has one piece of dividing plate, Splittable is burnt
Device is divided into gas port and three times wind snout；The Splittable burner installation site circle of contact is in burner hearth center.
Described Splittable burner has 4 altogether.
Described dividing plate（4）It is connected using welding manner with Splittable burner inner wall.
Tangential firing is located at burner hearth center, and a quadrangle tangential circle is formed by four coal burners positioned at burner hearth center；
Opposed firing is located at burner hearth both sides, and one group or two groups of symmetrical coal burners can be set per side.
The selection of the utility model burner model makes full use of the characteristics of liquidating tangential firing mode.Due to tangential firing
Positioned at burner hearth center, it is necessary to there is the breeze airflow that rigidity is strong, penetration capacity is big, it could meet that the circle of contact plays the requirement of turn amount,
Burner hearth is centrally formed stable tangential firing.Opposed firing is located at burner hearth both sides, apart from hearth combustion center farther out, it is necessary to improve
The steady combustion ability of static state of single burner, stable burning support is provided for the dynamic tangential firing in burner hearth center, makes burner hearth whole
Body burning is maintained.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is theory of combustion figure of the utility model burner in boiler；
It is identified as in figure：1st, gas port, 2, Splittable burner, 3, wind snout three times, 4, dividing plate, 5, burner hearth.
Embodiment
Describe preferred embodiment of the present utility model in detail below in conjunction with the accompanying drawings.
The utility model embodiment：As shown in figure 1, a kind of Splittable burner structure of station boiler, including coal gas spray
Mouthful 1, Splittable burner 2, three times wind snout 3, dividing plate 4, burner hearth 5, there is one piece of dividing plate 4 inside Splittable burner 2, will split
Type burner 2 is divided into gas port 1 and three times wind snout 3；The installation site circle of contact of Splittable burner 2 is in the center of burner hearth 5.
Further Splittable burner 24 altogether, it is dispersed to be arranged on boiler furnace, it is ensured that wind-force is equal
Even, disturbance is small.
Further dividing plate 4 is connected using welding manner with the inwall of Splittable burner 2, by welding manner by Splittable
The inside air channel of burner 2 is divided into independent confined space, and guarantee is not disturbed by other side.
Its dividing method, Splittable burner 2 use coal gas and tertiary air Splittable burner structure, Splittable burner
2 use vertical vertical segmentation, and it is gas port 1 to fiery side, and back-fire side is wind snout 3 three times；Burner hearth is tangential firing mode,
Splittable burner 2 is located at the upper strata of the burning group of burner hearth 1.
It is First air coal dust or Secondary Air that wind snout 3 is replaceable three times.
Fig. 1 is coal gas and tertiary air Splittable burner.Specific method is Splittable burner (2) using vertical vertical point
Cut, the part of gas port 1 and three times the partial segmentation area of wind snout 3 are according to tertiary air and the design wind speed of coal gas.
Fig. 2 is theory of combustion figure of the burner in boiler, and wherein coal gas is arranged in fiery side, and tertiary air is arranged in back of the body fire
Side.The burning circle of contact is located at burner hearth (5) center, by four coal gas positioned at burner hearth center and tertiary air Splittable burner (2) shape
Into a corner tangential firing technology.
Claims (3)
1. a kind of Splittable burner structure of station boiler, including gas port (1), Splittable burner（2）, tertiary air spray
Mouth (3), dividing plate（4）, burner hearth（5）, it is characterised in that：Described Splittable burner（2）There is one piece of dividing plate inside（4）, will divide
Cut type burner（2）It is divided into gas port (1) and three times wind snout (3)；Splittable burner（2）The installation site circle of contact is in stove
Thorax (5) center.
A kind of 2. Splittable burner structure of station boiler according to claim 1, it is characterised in that：Described segmentation
Type burner（2）4 altogether.
A kind of 3. Splittable burner structure of station boiler according to claim 1, it is characterised in that：Described dividing plate
（4）Using welding manner and Splittable burner（2）Inwall connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720357767.9U CN207006124U (en) | 2017-04-07 | 2017-04-07 | A kind of Splittable burner structure of station boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720357767.9U CN207006124U (en) | 2017-04-07 | 2017-04-07 | A kind of Splittable burner structure of station boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207006124U true CN207006124U (en) | 2018-02-13 |
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ID=61428752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720357767.9U Active CN207006124U (en) | 2017-04-07 | 2017-04-07 | A kind of Splittable burner structure of station boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207006124U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131496A (en) * | 2017-04-07 | 2017-09-05 | 贵州电网有限责任公司电力科学研究院 | The Splittable burner structure and dividing method of a kind of station boiler |
-
2017
- 2017-04-07 CN CN201720357767.9U patent/CN207006124U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131496A (en) * | 2017-04-07 | 2017-09-05 | 贵州电网有限责任公司电力科学研究院 | The Splittable burner structure and dividing method of a kind of station boiler |
| CN107131496B (en) * | 2017-04-07 | 2023-10-27 | 贵州电网有限责任公司电力科学研究院 | Split type burner structure and split method of power station boiler |
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