CN204513332U - A kind of tooth-like wearing-resistant tile for boiler heated tubular surface - Google Patents
A kind of tooth-like wearing-resistant tile for boiler heated tubular surface Download PDFInfo
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- CN204513332U CN204513332U CN201520094383.3U CN201520094383U CN204513332U CN 204513332 U CN204513332 U CN 204513332U CN 201520094383 U CN201520094383 U CN 201520094383U CN 204513332 U CN204513332 U CN 204513332U
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- wearing
- tooth
- resistant tile
- tearing
- pipe
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Abstract
The utility model discloses a kind of tooth-like wearing-resistant tile for boiler heated tubular surface, it comprises boiler heating surface pipe, tooth-like wearing-resistant tile.The both sides of tooth-like wearing-resistant tile and heating surface pipe spot welding.The length 500mm of tooth-like wearing-resistant tile.The tooth root place thickness 3mm of tooth-like wearing-resistant tile, crown place thickness 8mm.The material selection 1Cr20Ni14Si2 heat-resistance and wear-resistance steel of tooth-like wearing-resistant tile, can bear the operating temperature of 1200 DEG C, indeformable when can ensure work.The utility model object fully resolves the problem that the surface anti-friction protecting watt wearing and tearing of boiler heated tubular come off.Flue gas to the most serious position of erosive wear of pipe in pipe windward side; lee face does not does not wear and tear substantially; the design is by forming zigzag to the improvement of wearing-resistant tile cross sectional shape; thus the wearing and tearing that dust stratification in sawtooth can resist the ash in flue gas protect arc shaped tile root and avoid wearing and tearing, and total effect is the wearing and tearing significantly reducing anti-friction protecting watt self.
Description
Technical field
The utility model relates to station boiler, especially relates to a kind of tooth-like wearing-resistant tile for boiler heated tubular surface.
Background technology
China's current thermal power plant installed capacity has reached 800,000,000 kilowatts, and all size coal-fired power station boiler run about has nearly 20000 multiple stage, the four sides furnace wall structure of furnace of power-plant boilers is bottom to be cone middle and upper part be rectangular shaped post.Four sides furnace wall is arranged by seamless steel pipe and band steel is welded, therefore furnace wall is also water-cooling wall.The back-end ductwork of boiler arranges a large amount of snake-like tube row heating surfaces, as superheater, reheater, economizer, air preheater.Superheater, reheater, economizer are all made up of snake-like tube row, and it is more that pipe row of horizontal is arranged, carry a large amount of thin ashes and create erosive wear to heating surface snake-like tube row in the flue gas that boiler combustion produces.On the windward side that horizontally disposed pipe is arranged, semicircle anti-friction protecting watt is welded with all in advance in order to prevent wearing and tearing boiler maker.
When central axis arranged by boiler ash-laden gas flow direction and pipe, ash-laden gas arranges what carry out to pipe is transversal flow.Production practices prove that the transversal flow of boiler ash-laden gas can make boiler horizontal heat pipe row anti-friction protecting watt surperficial windward produce wearing and tearing, and when long-term erosive wear is serious, semicircle anti-friction protecting watt comes off, and the then exposed steel pipe that is heated can be revealed by quick-wearing very much.It has been one of the most serious accident of boiler that wearing and tearing are revealed, and accounts for the 30% even more of boiler breakdowns.Cause very large direct and indirect economic loss.
Summary of the invention
The utility model object is to provide a kind of tooth-like wearing-resistant tile for boiler heated tubular surface.
For achieving the above object, the utility model takes following technical proposals:
1. the cross section of wearing-resistant tile is zigzag.
2. the both sides of wearing-resistant tile and heating surface pipe spot welding.
3. the length 500mm of wearing-resistant tile.
4. the tooth root place thickness 3mm of wearing-resistant tile, crown place thickness 8mm.
5. the material of wearing-resistant tile selects 1Cr20Ni14Si2 heat-resistance and wear-resistance steel, can bear the operating temperature of 1200 DEG C, indeformable when can ensure work.
Zigzag wearing-resistant tile can produce dust stratification in tooth root place in boiler uses, and grey collision of carrying in this dust stratification and flue gas is washed away thus make arc shaped tile root from wearing and tearing.Instead of ash and the collision of metal with ash and the collision of ash, ash and the result of the anti-wear performance phase syn-collision of ash are not worn and torn, and tooth root place can produce dust stratification and isolate and carry the grey wearing and tearing to heating surface pipe in flue gas.Therefore, the design of zigzag wearing-resistant tile enhances wearing-resistant tile anti-wear performance.
The utility model object fully resolves the problem that the surface anti-friction protecting watt wearing and tearing of boiler heated tubular come off.Flue gas to the most serious position of erosive wear of pipe in pipe windward side; lee face does not does not wear and tear substantially; the design is by forming zigzag to the improvement of wearing-resistant tile cross sectional shape; thus the wearing and tearing that dust stratification in sawtooth can resist the ash in flue gas protect arc shaped tile root and avoid wearing and tearing, and total effect is the wearing and tearing significantly reducing anti-friction protecting watt self.
Accompanying drawing explanation
Fig. 1 is the wearing-resistant tile cross sectional representation of existing boiler tube bank.
Fig. 2 is the tooth-like wearing-resistant tile cross sectional representation of the utility model for boiler heated tubular surface.
Detailed description of the invention
As shown in Figure 2, a kind of tooth-like wearing-resistant tile for boiler heated tubular surface described in the utility model, it comprise boiler heating surface pipe 1, tooth-like watt 2.
The both sides of tooth-like watt 2 and heating surface pipe 1 spot welding.
The length 500mm of tooth-like watt 2.
The tooth root place thickness 3mm of tooth-like watt 2, crown place thickness 8mm.
The material selection 1Cr20Ni 14Si2 heat-resistance and wear-resistance steel of tooth-like watt 2, can bear the operating temperature of 1200 DEG C, indeformable when can ensure work.
Tooth root place can produce dust stratification and isolate and carry the wearing and tearing of ash to heating surface pipe in flue gas, protects arc shaped tile root and avoids wearing and tearing, and total effect is the wearing and tearing significantly reducing anti-friction protecting watt self.
The various embodiments described above can not depart from some changes in addition under scope of the present utility model, thus above explanation to comprise and the structure shown in accompanying drawing should be considered as exemplary, and be not used to limit claim of the present utility model.
Claims (3)
1. for the tooth-like wearing-resistant tile on boiler heated tubular surface, it comprises boiler heating surface pipe (1), tooth-like watt (2), it is characterized in that: the cross section of described tooth-like watt (2) is zigzag, length 500mm.
2. a kind of tooth-like wearing-resistant tile for boiler heated tubular surface according to claim 1, is characterized in that: the tooth root place thickness 3mm of described tooth-like watt (2), crown place thickness 8mm.
3. a kind of tooth-like wearing-resistant tile for boiler heated tubular surface according to claim 1, is characterized in that: the both sides of described tooth-like watt (2) and heating surface pipe (1) spot welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520094383.3U CN204513332U (en) | 2015-02-10 | 2015-02-10 | A kind of tooth-like wearing-resistant tile for boiler heated tubular surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520094383.3U CN204513332U (en) | 2015-02-10 | 2015-02-10 | A kind of tooth-like wearing-resistant tile for boiler heated tubular surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204513332U true CN204513332U (en) | 2015-07-29 |
Family
ID=53711308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520094383.3U Expired - Fee Related CN204513332U (en) | 2015-02-10 | 2015-02-10 | A kind of tooth-like wearing-resistant tile for boiler heated tubular surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204513332U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402760A (en) * | 2015-12-09 | 2016-03-16 | 杭州佰强能源科技有限公司 | Fluoroplastic-steel air preheater with anti-corrosive and anti-blockage functions |
-
2015
- 2015-02-10 CN CN201520094383.3U patent/CN204513332U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402760A (en) * | 2015-12-09 | 2016-03-16 | 杭州佰强能源科技有限公司 | Fluoroplastic-steel air preheater with anti-corrosive and anti-blockage functions |
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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: 20150729 Termination date: 20200210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |