CN204943459U - Circulating fluidized bed boiler water-cooling wall pipe abrasion-resistant diversion - Google Patents
Circulating fluidized bed boiler water-cooling wall pipe abrasion-resistant diversion Download PDFInfo
- Publication number
- CN204943459U CN204943459U CN201520720973.2U CN201520720973U CN204943459U CN 204943459 U CN204943459 U CN 204943459U CN 201520720973 U CN201520720973 U CN 201520720973U CN 204943459 U CN204943459 U CN 204943459U
- Authority
- CN
- China
- Prior art keywords
- proof piece
- friction
- screen tube
- water screen
- water
- Prior art date
- 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.)
- Expired - Fee Related
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
Circulating fluidized bed boiler water-cooling wall pipe abrasion-resistant diversion, it comprises multiple friction-proof piece, the described friction-proof piece side of being plate structure, friction-proof piece is provided with three grooves, the spacing of described groove and groove matches with fin distance between the diameter of water screen tube and two pipes, the below in described adjacent grooves gap is provided with the support chip of strip, and the groove of described friction-proof piece is installed on by full weld mode is close to water screen tube place, and described support chip is fixed on the fin of water screen tube by full weld mode.The utility model, by installing friction-proof piece, can make particle impact when rising and fall on friction-proof piece, reduce movement velocity, greatly reduce the impact to water screen tube, extend service life to greatest extent, be applicable to promoting the use of.
Description
Technical field
The utility model relates to CFBB, specifically relates to circulating fluidized bed boiler water-cooling wall pipe abrasion-resistant diversion.
Background technology
The bed material that the wearing and tearing of circulating fluidized bed boiler water-cooling wall pipe are mainly made up of coal ash, unreacted lime stone, limestone desulfurization product etc. in boiler is in fluidized state under the wind action sent into, coal grain, bed material to be entrained in burner hearth by flue gas with lime stone and to move upward, to fall along burner hearth limit wall at the different height portions bulky grain of burner hearth, form the Inner eycle of material, the material of these adherent whereabouts shears collision by being formed the water screen tube of boiler, causes the heavy wear of water screen tube.
The process of wearing and tearing for water screen tube at present adopts more carries out the methods such as hot lacquering, hot spray-welding, castable on water screen tube, although these methods play certain wear-resisting effect, need maintenance reparation in a short time, service life is not high.
Summary of the invention
The purpose of this utility model overcomes above-mentioned deficiency, provides a kind of for circulating fluidized bed boiler water-cooling wall pipe abrasion-resistant diversion, can play buffering and guide functions, greatly reduce the wearing and tearing of water screen tube to the flow velocity of the material particles in boiler.
For achieving the above object, the technical solution adopted in the utility model is: circulating fluidized bed boiler water-cooling wall pipe abrasion-resistant diversion, it comprises multiple friction-proof piece, the described friction-proof piece side of being plate structure, friction-proof piece is provided with three grooves, the spacing of described groove and groove matches with fin distance between the diameter of water screen tube and two pipes, and the below in described adjacent grooves gap is provided with the support chip of strip, and the groove of described friction-proof piece is installed by full weld mode
in being close towater screen tube
place, described support chip is fixed on water screen tube by full weld mode
on fin.
Preferably, point Multi-layers distributing on the water-cooled tube wall of described friction-proof piece in boiler, the width of described friction-proof piece from top to bottom increases progressively successively.
The beneficial effects of the utility model are: by installing friction-proof piece, and particle impact when rising and fall can be made on friction-proof piece, to reduce movement velocity, greatly reduce the impact to water screen tube, extend service life to greatest extent, be applicable to promoting the use of.
Accompanying drawing explanation
Fig. 1 is the cutaway side view that the utility model is installed.
Fig. 2 is the top cross-sectional view that the utility model is installed.
Fig. 3 is the front view of friction-proof piece of the present utility model.
Fig. 4 is the top view of friction-proof piece of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, circulating fluidized bed boiler water-cooling wall pipe abrasion-resistant diversion, it comprises multiple friction-proof piece 1, described friction-proof piece 1 side of being plate structure, friction-proof piece 1 is provided with three grooves 11, the spacing of described groove and groove matches with fin distance between the diameter of water screen tube and two pipes, the below in described adjacent grooves 11 gap is provided with the support chip 12 of strip, the groove 11 of described friction-proof piece 1 is arranged on water screen tube 2 by full weld mode, and described support chip 12 is fixed on the gap of water screen tube 2 by full weld mode.Point Multi-layers distributing on the water-cooled tube wall 2 of described friction-proof piece 1 in boiler, the width of described friction-proof piece 1 from top to bottom increases progressively successively.
Claims (2)
1. circulating fluidized bed boiler water-cooling wall pipe abrasion-resistant diversion, it is characterized in that: it comprises multiple friction-proof piece, the described friction-proof piece side of being plate structure, friction-proof piece is provided with three grooves, the spacing of described groove and groove matches with fin distance between the diameter of water screen tube and two pipes, the below in described adjacent grooves gap is provided with the support chip of strip, the groove of described friction-proof piece is installed on by full weld mode is close to water screen tube place, and described support chip is fixed on the fin of water screen tube by full weld mode.
2. circulating fluidized bed boiler water-cooling wall pipe abrasion-resistant diversion according to claim 1, is characterized in that: point Multi-layers distributing on the water-cooled tube wall of described friction-proof piece in boiler, the width of described friction-proof piece from top to bottom increases progressively successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520720973.2U CN204943459U (en) | 2015-09-18 | 2015-09-18 | Circulating fluidized bed boiler water-cooling wall pipe abrasion-resistant diversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520720973.2U CN204943459U (en) | 2015-09-18 | 2015-09-18 | Circulating fluidized bed boiler water-cooling wall pipe abrasion-resistant diversion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204943459U true CN204943459U (en) | 2016-01-06 |
Family
ID=55010884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520720973.2U Expired - Fee Related CN204943459U (en) | 2015-09-18 | 2015-09-18 | Circulating fluidized bed boiler water-cooling wall pipe abrasion-resistant diversion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204943459U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023140A (en) * | 2019-12-13 | 2020-04-17 | 北京华电德高科技有限责任公司 | Laser cladding high-temperature-resistant anti-abrasion structure for special-shaped water wall tube bank |
-
2015
- 2015-09-18 CN CN201520720973.2U patent/CN204943459U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023140A (en) * | 2019-12-13 | 2020-04-17 | 北京华电德高科技有限责任公司 | Laser cladding high-temperature-resistant anti-abrasion structure for special-shaped water wall tube bank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20190918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |