CN208859643U - Big bellows accumulatingdust baffle plate device - Google Patents
Big bellows accumulatingdust baffle plate device Download PDFInfo
- Publication number
- CN208859643U CN208859643U CN201821328934.8U CN201821328934U CN208859643U CN 208859643 U CN208859643 U CN 208859643U CN 201821328934 U CN201821328934 U CN 201821328934U CN 208859643 U CN208859643 U CN 208859643U
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- China
- Prior art keywords
- bellows
- big
- back wall
- accumulatingdust
- walls
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of big bellows accumulatingdust baffle plate devices.The utility model includes both walls horizontal baffle, front-back wall inclined-plane partition.Both walls horizontal baffle is laid in the big bellows of both walls of big bellows air inlet lower edge, extends to the edge of the big bellows of front-back wall, and absolute altitude and big bellows air inlet lower edge are concordant or slightly lower.Front-back wall inclined-plane partition is aligned close to both walls end with both walls horizontal baffle, it is tilted upward by two sides to preceding (rear) wall and is centrally formed triangular ramp, it is 2-5 ° of tilt angle, specific to need to be determined according to the spacing of both walls horizontal baffle and burner base.The utility model eliminates strong wind bottom portion low velocity eddy by big bellows accumulatingdust baffle plate device come pre- accumulatingdust, and purging certainly for a small amount of dust stratification is realized according to the flowing of the wind in front-back wall bellows and Distribution dynamics.
Description
Technical field
The utility model belongs to power equipment system regions, is related to a kind of big bellows accumulatingdust baffle plate device.
Background technique
As Thermal generation unit large capacity develops, Opposite Firing Boiler occupies significant proportion.Front-back wall pair
The Secondary Air of punching burning is all made of big bellows structure, and big bellows are enclosed around on the outside of furnace wall cooling one, Secondary Air by both walls into
Enter big bellows, then flows to front-back wall, and enter the burner being arranged in big bellows.Longtime running shows most boilers
Big bellows memory is in serious fouling phenomenon, and dust stratification thickness can reach tens centimetres or more, or even from big bellows floor product to combustion
Burner bottom, dust stratification amount seriously affect the safety of boiler operatiopn up to tens of tons to hundreds of tons, including bellows load metamorphism,
Bellows bottom leakage, burner fire inspection signal momentary loss etc..In most cases, the method that power plant generally uses periodic cleaning is come
Ash disposal, not only heavy workload, but also deashing process also influence environmental and human health impacts to a certain degree, or even influence the normal of boiler
Operation.Boiler strong wind bottom plate is lower than air inlet bottom, is theoretically conducive to the effective use of burner hearth heat dissipation, and in balanced bellows
Pressure distribution, but cannot not only reach corresponding purpose often because of serious dust stratification problem in practice, bring instead certain
Security risk.
Summary of the invention
To solve the problems, such as that serious dust stratification, the utility model existing for the big bellows of existing boiler provide a kind of anti-product of big bellows
Grey baffle plate device.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
The utility model includes both walls horizontal baffle, front-back wall inclined-plane partition.
The both walls horizontal baffle, is welded to form using steel plate, is laid in the two sides of big bellows air inlet lower edge
In the big bellows of wall, extend to the edge of the big bellows of front-back wall, absolute altitude it is concordant or slightly lower with big bellows air inlet lower edge (≤
300mm).As spacing≤300mm of big bellows air inlet lower edge and strong wind bottom plate, it is not necessary to install both walls level every
Plate.
The front-back wall inclined-plane partition, is welded to form using steel plate, close to both walls end and both walls horizontal baffle pair
Together (when spacing≤300mm of big bellows air inlet lower edge and strong wind bottom plate is without installing both walls horizontal baffle, then directly
Connect and strong wind bottom plate weld), it is tilted upward by two sides to preceding (rear) wall and is centrally formed triangular ramp, 2-5 ° of tilt angle,
It is specific to need to be determined according to the spacing of both walls horizontal baffle and burner base.
The both walls horizontal baffle, front-back wall inclined-plane partition, are fixed by big inner bellows girder steel.
The both walls horizontal baffle, front-back wall inclined-plane partition, steel plate thickness 1-6mm, specific thickness can be according to scene
The supporting condition of installation determines, can carry service personnel's standing and not occur obviously to deform.
The both walls horizontal baffle, front-back wall inclined-plane partition, installation need to have certain leakproofness, to avoid secondary
Dust in wind deposits at gap to be fallen.
The utility model has the beneficial effect that:
The utility model people has carried out numerical simulation study to the flow field of the gas-solid multiphase flow in big bellows, obtain due to
It is more that big bellows both walls air inlet bottom is higher than strong wind bottom plate, and burner absolute altitude is generally within air inlet middle position,
And the overall air flow velocity in big bellows is lower, therefore the air velocity in strong wind lower box part region is very low, and forms low
Fast vortex.Contain certain dust in the Secondary Air of air preheater, dust strong wind lower box part low velocity eddy just very
It is easy to happen deposition.The purpose of this utility model is exactly to eliminate strong wind bottom portion low speed whirlpool by big bellows accumulatingdust baffle plate device
It flows area and carrys out pre- accumulatingdust, and realize purging certainly for a small amount of dust stratification according to the flowing of the wind in front-back wall bellows and Distribution dynamics.
Detailed description of the invention
Fig. 1 is the principle schematic diagram of the utility model.
In figure: 1, both walls horizontal baffle；2, front-back wall inclined-plane partition；3, strong wind bottom plate；4, big bellows air inlet；5,
Burner.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Figure 1, big bellows accumulatingdust baffle plate device, including both walls horizontal baffle 1, front-back wall inclined-plane partition 2.
The both walls horizontal baffle 1, is welded to form using steel plate, is laid in the two of big 4 lower edge of bellows air inlet
In the big bellows of side wall, extend to the edge of the big bellows of front-back wall, absolute altitude it is concordant or slightly lower with big 4 lower edge of bellows air inlet (≤
300mm).As spacing≤300mm of big 4 lower edge of bellows air inlet and strong wind bottom plate 3, it is not necessary to which both walls level is installed
Partition 1.
The front-back wall inclined-plane partition 2, is welded to form using steel plate, close to both walls end and both walls horizontal baffle 1
Alignment is (when spacing≤300mm of big 4 lower edge of bellows air inlet and strong wind bottom plate 3 is without installing both walls horizontal baffle 1
When, then directly welded with strong wind bottom plate), it is tilted upward by two sides to preceding (rear) wall and is centrally formed triangular ramp, inclination angle
2-5 ° of degree, it is specific to need to be determined according to the spacing of both walls horizontal baffle 1 and 5 bottom of burner.
The both walls horizontal baffle 1, front-back wall inclined-plane partition 2, are fixed by big inner bellows girder steel.
The both walls horizontal baffle 1, front-back wall inclined-plane partition 2, steel plate thickness 1-6mm, specific thickness can be according to existing
The supporting condition of field installation determines, can carry service personnel's standing and obviously deformation does not occur.
The both walls horizontal baffle 1, front-back wall inclined-plane partition 2, installation need to have certain leakproofness, to avoid two
Dust in secondary wind deposits at gap to be fallen.
Claims (9)
1. big bellows accumulatingdust baffle plate device, it is characterised in that including both walls horizontal baffle, front-back wall inclined-plane partition；
The both walls horizontal baffle, is welded to form using steel plate, and the both walls for being laid in big bellows air inlet lower edge are big
In bellows, the edge of the big bellows of front-back wall is extended to, absolute altitude and big bellows air inlet lower edge are concordant or slightly lower；
The front-back wall inclined-plane partition, is welded to form using steel plate, is aligned close to both walls end with both walls horizontal baffle；By
Two sides tilt upward to front wall and rear wall and are centrally formed triangular ramp, and 2-5 ° of tilt angle.
2. big bellows accumulatingdust baffle plate device according to claim 1, it is characterised in that it is described it is slightly lower refer to less than etc.
In 300mm.
3. big bellows accumulatingdust baffle plate device according to claim 2, it is characterised in that the both walls horizontal baffle,
Front-back wall inclined-plane partition is fixed by big inner bellows girder steel.
4. big bellows accumulatingdust baffle plate device according to claim 3, it is characterised in that the both walls horizontal baffle,
Front-back wall inclined-plane partition, steel plate thickness 1-6mm.
5. big bellows accumulatingdust baffle plate device according to claim 4, it is characterised in that the both walls horizontal baffle,
Front-back wall inclined-plane partition need to seal installation and deposit and fall at gap to avoid the dust in Secondary Air.
6. big bellows accumulatingdust baffle plate device according to claim 5, it is characterised in that when big bellows air inlet lower edge
When with spacing≤300mm of strong wind bottom plate, it is not necessary to both walls horizontal baffle be installed, front-back wall inclined-plane partition need to be only installed；
And the front-back wall inclined-plane partition, be welded to form using steel plate, directly with strong wind bottom plate weld, by two sides tilt upward to
Front wall and rear wall are centrally formed triangular ramp, and 2-5 ° of tilt angle.
7. big bellows accumulatingdust baffle plate device according to claim 6, it is characterised in that the front-back wall inclined-plane partition
It is fixed by big inner bellows girder steel.
8. big bellows accumulatingdust baffle plate device according to claim 7, it is characterised in that the front-back wall inclined-plane partition,
Steel plate thickness 1-6mm.
9. big bellows accumulatingdust baffle plate device according to claim 8, it is characterised in that the front-back wall inclined-plane partition,
It need to seal to install to deposit at gap to avoid the dust in Secondary Air and fall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821328934.8U CN208859643U (en) | 2018-08-17 | 2018-08-17 | Big bellows accumulatingdust baffle plate device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821328934.8U CN208859643U (en) | 2018-08-17 | 2018-08-17 | Big bellows accumulatingdust baffle plate device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208859643U true CN208859643U (en) | 2019-05-14 |
Family
ID=66414963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821328934.8U Withdrawn - After Issue CN208859643U (en) | 2018-08-17 | 2018-08-17 | Big bellows accumulatingdust baffle plate device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208859643U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084323A (en) * | 2018-08-17 | 2018-12-25 | 浙江浙能温州发电有限公司 | A kind of big bellows accumulatingdust baffle plate device |
-
2018
- 2018-08-17 CN CN201821328934.8U patent/CN208859643U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084323A (en) * | 2018-08-17 | 2018-12-25 | 浙江浙能温州发电有限公司 | A kind of big bellows accumulatingdust baffle plate device |
| CN109084323B (en) * | 2018-08-17 | 2023-09-26 | 浙江浙能温州发电有限公司 | Dust deposit baffle device is prevented to big bellows |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190514 Effective date of abandoning: 20230926 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190514 Effective date of abandoning: 20230926 |