CN207514903U - A kind of corner tangential firing device nozzle - Google Patents
A kind of corner tangential firing device nozzle Download PDFInfo
- Publication number
- CN207514903U CN207514903U CN201721294144.8U CN201721294144U CN207514903U CN 207514903 U CN207514903 U CN 207514903U CN 201721294144 U CN201721294144 U CN 201721294144U CN 207514903 U CN207514903 U CN 207514903U
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- China
- Prior art keywords
- demarcation strip
- nozzle
- firing device
- bracket
- tangential firing
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Abstract
The utility model provides a kind of corner tangential firing device nozzle, and including nozzle body, demarcation strip is by separating board bracket on nozzle body；There are the gaps for not limiting demarcation strip thermal expansion between demarcation strip and separation board bracket, and the gap is by having flexibility, not influencing its thermal expansion while demarcation strip is compressed, the Graphite pad also to seal filling；It is additionally provided with to limit demarcation strip and separate the block of board bracket vibration on nozzle body.The utility model on the basis of cost is not dramatically increased, is realized and is prolonged the service life by the way that coal burner nozzle is carried out local improvement；The total flow of carbofrax material is few, cheap；Demarcation strip uses both sides fixed form, and bracket size is small, small to wind coal flow；Fixing glue whole countersunk head is installed, and fixing glue is avoided total to be caused to fail due to wear damage；There are expansion spaces with tray chamber for demarcation strip, and nozzle body, demarcation strip and bracket expanded by heating is made not to do something in disregard of obstacles mutually after deforming and is related to.
Description
Technical field
The utility model is related to the quadrangle tangential circles that a kind of corner tangential firing device nozzle more particularly to a kind of service life are grown
Burner nozzle belongs to coal burning boiler of power station corner tangential firing device system.
Background technology
In coal burning boiler of power station equipment, corner tangential firing device nozzle is used at a high speed spray into the mixture of air and coal dust
Burner hearth, and the direction of jet stream can be adjusted in a certain range.
Since burner nozzle long-term work is in hot environment, the high speed of wind-engaging coal mixtures is washed away, often because of excessive wear
And fail, service life is short.Burner nozzle is frequently replaced, it is not only troublesome in poeration, it is time-consuming and laborious, and also increase power station combustion
The cost of coal burning boiler corner tangential firing device system.
Utility model content
The technical problems to be solved in the utility model is how on the basis of cost is not dramatically increased, and extends quadrangle tangential circle
The service life of burner nozzle.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is to provide a kind of corner tangential firing device spray
Mouth, it is characterised in that：Including nozzle body, demarcation strip both ends are by separating board bracket on nozzle body；Demarcation strip is with dividing
There are the gaps for not limiting demarcation strip thermal expansion between bulkhead bracket, and the gap is by having flexibility, compressing demarcation strip
The Graphite pad filling for do not influence its thermal expansion simultaneously, also sealing；It is additionally provided with to limit demarcation strip on nozzle body
With the block for separating board bracket vibration.
Preferably, the nozzle body is steel-casting.
Preferably, the nozzle body is equipped with to install the projective structure for separating board bracket, the separation board bracket
On the projective structure.
Preferably, the demarcation strip is silicon carbide demarcation strip.
Preferably, the separation board bracket is silicon carbide bracket.
Preferably, the bracket fixing glue that the separation board bracket is installed by countersunk head is fixed with nozzle body；The separation
The demarcation strip fixing glue that plate is installed by countersunk head is fixed with separating board bracket.
It is highly preferred that the board bracket that separates is equipped with the countersunk head for being used for mounting bracket fixing glue and demarcation strip fixing glue
Hole.
It is highly preferred that the bracket fixing glue and demarcation strip fixing glue are stainless steel fixing glue.
Preferably, the block is stainless steel block.
Preferably, all windward sides of the corner tangential firing device nozzle are arc surface.
Compared with prior art, corner tangential firing device nozzle provided by the utility model has the advantages that：
1st, it by the way that coal burner nozzle is carried out local improvement, on the basis of cost is not dramatically increased, realizes and prolongs
Long life；
2nd, the total flow of carbofrax material is few, cheap；
3rd, using both sides fixed form, bracket size is small, small to wind coal flow；
4th, fixing glue whole countersunk head is installed, and fixing glue is avoided total to be caused to fail due to wear damage；
5th, there are expansion spaces, and nozzle body, demarcation strip and bracket expanded by heating is made not to do something in disregard of obstacles mutually after deforming and is related to.
Description of the drawings
Fig. 1 is corner tangential firing device nozzle front view provided in this embodiment；
Fig. 2 is A-A sectional views in Fig. 1；
Fig. 3 is E-E sectional views in Fig. 1；
Fig. 4 is partial enlarged view at B in Fig. 1；
Fig. 5 is partial enlarged view at D in Fig. 2；
Fig. 6 is partial enlarged view at G in Fig. 3；
Fig. 7 is partition plate structure schematic diagram；
Fig. 8 is separates board bracket front view；
Fig. 9 is separates board bracket left view；
Figure 10 is separates board bracket right view.
Specific embodiment
With reference to specific embodiment, the utility model is expanded on further.It should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation the scope of the utility model.In addition, it should also be understood that, in the content for having read the utility model instruction
Later, those skilled in the art can make various changes or modifications the utility model, and such equivalent forms equally fall within this Shen
It please the appended claims limited range.
Fig. 1~Fig. 6 is corner tangential firing device nozzle arrangements schematic diagram provided in this embodiment, and the quadrangle tangential circle fires
Burner nozzle is by nozzle body 1, demarcation strip 2, separation board bracket 3, bracket fixing glue 4, demarcation strip fixing glue 5,6 and of Graphite pad
7 grade of block forms.
Nozzle body 1 is steel-casting, and the difference lies in set with now widely used coal burner nozzle body
There is demarcation strip, separate Board position and be equipped with that the projective structure for separating board bracket 3 is installed.
With reference to Fig. 7, the generally carbofrax material of demarcation strip 2, heat-resistant antifriction.
With reference to Fig. 8~Figure 10, separation board bracket 3 is carbofrax material, is fixed with nozzle body 1, for fixing and supporting
Demarcation strip 2, and there are certain intervals, do not limit demarcation strip thermal expansion.Separate board bracket 3 and be equipped with counter sink, consolidate for bracket
Surely the installation of nail 4 and demarcation strip fixing glue 5.
Bracket fixing glue 4 and demarcation strip fixing glue 5 are high temperature resistant stainless steel material, and type of attachment is thread forms.
Graphite pad 6 is used to clog demarcation strip 2 and separates the gap between board bracket 3, has certain flexibility, separates compressing
Its thermal expansion is not influenced while plate 2, is also sealed.
Block 7 is stainless steel, is fixed with nozzle body 1, for limiting demarcation strip 2 and separating 3 vibration of board bracket.Figure
In 6, two pieces of one piece in the block of gears are only drawn for convenience of expression.
All windward sides of corner tangential firing device nozzle are arc surface.By labyrinth seal form, stop wind coal jet stream
Stainless steel fixing glue is washed away.
During assembling：Separate board bracket 3 first to fix by bracket fixing glue 4 and nozzle body 1, then demarcation strip 2 and stone
Ink pad piece 6 along slot be packed into separate board bracket 3, pays attention to partition board both sides be used for compress, fixed waist type groove direction, be then charged into separation
Plate fixing glue 5 finally installs block 7.
It, can be in Existing In Pulverized Coal Burner Design structure and manufacturing process using corner tangential firing device nozzle provided in this embodiment
Under the premise of being basically unchanged, enhance the wearability of coal burner nozzle, extend the service life of coal burner nozzle.
Claims (10)
1. a kind of corner tangential firing device nozzle, it is characterised in that：Including nozzle body (1), demarcation strip (2) both ends pass through separation
Board bracket (3) is on nozzle body (1)；There are do not limit demarcation strip (2) heat between demarcation strip (2) and separation board bracket (3)
The gap of expansion, the gap by have it is flexible, while demarcation strip (2) are compressed do not influence its thermal expansion, also play sealing
Graphite pad (6) filling of effect；It is additionally provided with to limit demarcation strip (2) and separate board bracket (3) vibration on nozzle body (1)
Block (7).
2. a kind of corner tangential firing device nozzle as described in claim 1, it is characterised in that：The nozzle body (1) is casting
Steel part.
3. a kind of corner tangential firing device nozzle as described in claim 1, it is characterised in that：It is set on the nozzle body (1)
The projective structure that installation separates board bracket (3) is useful for, the separation board bracket (3) is on the projective structure.
4. a kind of corner tangential firing device nozzle as described in claim 1, it is characterised in that：The demarcation strip (2) is carbonization
Silicon demarcation strip.
5. a kind of corner tangential firing device nozzle as described in claim 1, it is characterised in that：It is described separation board bracket (3) be
Silicon carbide bracket.
6. a kind of corner tangential firing device nozzle as described in claim 1, it is characterised in that：The separation board bracket (3) is logical
Bracket fixing glue (4) and the nozzle body (1) for crossing countersunk head installation are fixed；The demarcation strip that the demarcation strip (2) is installed by countersunk head
Fixing glue (5) is fixed with separating board bracket (3).
7. a kind of corner tangential firing device nozzle as claimed in claim 6, it is characterised in that：On the separation board bracket (3)
Equipped with the counter sink for mounting bracket fixing glue (4) and demarcation strip fixing glue (5).
8. a kind of corner tangential firing device nozzle as claimed in claim 6, it is characterised in that：The bracket fixing glue (4) and
Demarcation strip fixing glue (5) is stainless steel fixing glue.
9. a kind of corner tangential firing device nozzle as described in claim 1, it is characterised in that：The block (7) is stainless steel
Block.
10. a kind of corner tangential firing device nozzle as described in claim 1, it is characterised in that：The corner tangential firing device
All windward sides of nozzle are arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721294144.8U CN207514903U (en) | 2017-10-09 | 2017-10-09 | A kind of corner tangential firing device nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721294144.8U CN207514903U (en) | 2017-10-09 | 2017-10-09 | A kind of corner tangential firing device nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207514903U true CN207514903U (en) | 2018-06-19 |
Family
ID=62532722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721294144.8U Active CN207514903U (en) | 2017-10-09 | 2017-10-09 | A kind of corner tangential firing device nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207514903U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008933A (en) * | 2021-02-26 | 2021-06-22 | 西北工业大学 | Mica plate fixing and clamping device for heat transfer and cooling experiment of ceramic matrix composite |
-
2017
- 2017-10-09 CN CN201721294144.8U patent/CN207514903U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008933A (en) * | 2021-02-26 | 2021-06-22 | 西北工业大学 | Mica plate fixing and clamping device for heat transfer and cooling experiment of ceramic matrix composite |
| CN113008933B (en) * | 2021-02-26 | 2024-01-09 | 西北工业大学 | Mica plate fixing and clamping device for ceramic matrix composite heat transfer cooling experiment |
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