CN202171243U - Crescent wearable tile for boiler tube bundle - Google Patents
Crescent wearable tile for boiler tube bundle Download PDFInfo
- Publication number
- CN202171243U CN202171243U CN201120092186XU CN201120092186U CN202171243U CN 202171243 U CN202171243 U CN 202171243U CN 201120092186X U CN201120092186X U CN 201120092186XU CN 201120092186 U CN201120092186 U CN 201120092186U CN 202171243 U CN202171243 U CN 202171243U
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- CN
- China
- Prior art keywords
- crescent
- tile
- wearable
- wearing
- resistant tile
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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.)
- Expired - Fee Related
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model discloses a crescent wearable tile for a boiler tube bundle, which comprises tubes of the boiler tube bundle, the crescent wearable tile, a concave joint section of the crescent wearable tile and a convex joint section of the crescent wearable tile and is characterized in that the cross section of the crescent wearable tile is crescent; the crescent wearable tile is thick in middle and thin at two ends; the two ends of the crescent wearable tile are respectively provided with convex and concave joint sections; the convex and concave joint sections of two wearable tiles are mutually overlapped and a 2 mm of clearance is reserved, so that a zigzag expansion gap and labyrinth type sealing are formed; smoke at the joint of the two wearable tiles is effectively prevented from scouring the tubes; the convex joint section of the crescent wearable tile is 5 mm in thickness, so that the intensity is ensured; two sides of the upper part (the concave joint section is upward) of the crescent wearable tile are welded with hanged tubes and tubes of a sparse tube bundle; the welding length is 30 mm; the lower part of the wearable tile freely expands; the crescent wearable tile is made of 1Cr20Ni14Si2 heat resistant wearable steel; and the crescent wearable tile can bear the working temperature at 1200 DEG C and cannot be deformed.
Description
Technical field
The utility model relates to CFBB, especially relates to a kind of crescent wearing-resistant tile that is used for boiler tube row.
Background technology
China's present thermal power plant installed capacity is big 600,000,000 kilowatts, and all size coal-fired power station boiler that has moved has nearly more than 18000 approximately, and furnace of power-plant boilers is that the bottom is that the cone middle and upper part is the four sides furnace wall structure of rectangular cylinder.The four sides furnace wall is welded by seamless steel pipe row and band steel, so furnace wall also is water-cooling wall.Back-end ductwork such as same cuboid four sides furnace wall are welded by seamless steel pipe row and band steel, so the afterbody furnace wall also is the bag wall.Be provided with the bigger vertical tube of spacing (pipe row has loose bowels) column pipe by name in the back-end ductwork, back-end ductwork air inlet window is had loose bowels by preceding enclosure wall tube row and is formed (pipe row has loose bowels); Column pipe, the pipe row of having loose bowels have the windward side, all are welded with abrasionproof on the windward side in advance and protect watt.
The abrasionproof that washing away of production practices proofs boiler ash-laden gas can make column pipe, the pipe row that has loose bowels facings the wind the surface protects watt to produce heavy wear and abrasionproof occurs and protects and watt come off.What ash-laden gas carried out pipe row when the ash-laden gas flow direction was vertical with pipe row's center line is transversal flow.Column pipe, the surperficial down with the wind parallel baffled that can receive air-flow of the pipe row that has loose bowels.Wash away when serious abrasionproof and protect and watt come off, then exposed steel pipe very quick-wearing is revealed.It has been one of the most serious accident of boiler that wearing and tearing are revealed, account for boiler breakdowns 30% in addition more.Cause very big direct and indirect economic loss.
Summary of the invention
The utility model purpose is to provide a kind of crescent wearing-resistant tile that is used for boiler tube row.
For realizing above-mentioned purpose, the utility model is taked following technical proposals:
1. the cross section of wearing-resistant tile is a crescent, and the thick middle both sides are thin.
2. the length 380mm of wearing-resistant tile, thick middle 10mm, the thick 4mm in two edges.
3. the two ends of wearing-resistant tile have the convex-concave junction respectively, and the convex-concave junction of two wearing-resistant tiles is superimposed with each other and reserves the 2mm gap and forms dilatation joint and labyrinth sealing in a zigzag.Effectively prevented joint flue gas the washing away of two wearing-resistant tiles to pipe.
4. the thick 5mm of convex joint section of wearing-resistant tile has guaranteed intensity.
5. long 30mm is welded in the top of wearing-resistant tile (the female fitting section up) both sides and column pipe, the pipe welding of having loose bowels; The bottom free wxpansion of wearing-resistant tile.
6. the material of wearing-resistant tile is selected the 1Cr20Ni14Si2 heat-resistance and wear-resistance steel, can bear 1200 ℃ operating temperature, and is indeformable in the time of can guaranteeing work.
The utility model purpose be fully resolve the boiler suspension pipe, the pipe row's abrasionproof of having loose bowels protects a watt problem that comes off.At the pipe center, lee face not have to wear and tear flue gas basically to the most serious position of the erosive wear of pipe, and what the improvement of the design through the pair cross-section shape prevented that abrasionproof from protecting watt comes off.
Description of drawings
Fig. 1 is existing fluidized-bed combustion boiler pipe row's wearing-resistant tile cross sectional representation.
Fig. 2 is used for boiler tube row's crescent wearing-resistant tile cross sectional representation for the utility model.
Fig. 3 partly cuts open sketch map for the crescent wearing-resistant tile facade that the utility model is used for boiler tube row.
The specific embodiment
Like Fig. 2, shown in Figure 3, the described crescent wearing-resistant tile that is used for boiler tube row of the utility model, it comprises boiler tube row's pipe 1, crescent wearing-resistant tile 2, crescent wearing-resistant tile female fitting section 3, crescent wearing-resistant tile convex joint section 4.
The cross section of crescent wearing-resistant tile 2 is a crescent, and the thick middle both sides are thin.
The length 380mm of crescent wearing-resistant tile 2, thick middle 10mm, the thick 4mm in two edges.
The two ends of crescent wearing-resistant tile 2 have the convex-concave junction respectively, and the convex-concave junction 3 and 4 of two wearing-resistant tiles is superimposed with each other and reserves the 2mm gap and forms dilatation joint and labyrinth sealing in a zigzag, joint flue gas the washing away pipe that has effectively prevented two wearing-resistant tiles.
The convex joint section 4 thick 5mm of crescent wearing-resistant tile 2 have guaranteed intensity.
Long 30mm is welded in the top of crescent wearing-resistant tile 2 (the female fitting section up) both sides and column pipe, the pipe row's that has loose bowels pipe 1 welding; The bottom free wxpansion of wearing-resistant tile.
The material of crescent wearing-resistant tile 2 is selected the 1Cr20Ni14Si2 heat-resistance and wear-resistance steel, can bear 1200 ℃ operating temperature, and is indeformable in the time of can guaranteeing work.
Above-mentioned each embodiment can be under the scope that does not break away from the utility model in addition some variations, so above explanation comprises and accompanying drawing shown in structure should be regarded as exemplary, but not in order to limit the claim of the utility model.
Claims (6)
1. one kind is used for the crescent wearing-resistant tile that boiler tube is arranged; The described crescent wearing-resistant tile that is used for boiler tube row of the utility model; It comprises boiler tube row's pipe (1), crescent wearing-resistant tile (2), crescent wearing-resistant tile female fitting section (3), crescent wearing-resistant tile convex joint section (4); It is characterized in that: the cross section of crescent wearing-resistant tile (2) is a crescent, and the thick middle both sides are thin.
2. the crescent wearing-resistant tile that is used for boiler tube row according to claim 1 is characterized in that: the length 380mm of said crescent wearing-resistant tile (2), thick middle 10mm, the thick 4mm in two edges.
3. the crescent wearing-resistant tile that is used for boiler tube row according to claim 1; It is characterized in that: the two ends of said crescent wearing-resistant tile 2 have the convex-concave junction respectively, and crescent wearing-resistant tile female fitting section (3) and crescent wearing-resistant tile convex joint section (4) form the convex-concave junction of two wearing-resistant tiles and are superimposed with each other and reserve the 2mm gap and form dilatation joint and labyrinth sealing in a zigzag.
4. the crescent wearing-resistant tile that is used for boiler tube row according to claim 1 is characterized in that: the convex joint section 4 thick 5mm of said crescent wearing-resistant tile (2).
5. the crescent wearing-resistant tile that is used for boiler tube row according to claim 1 is characterized in that: the top female fitting section of said crescent wearing-resistant tile (2) up, both sides and column pipe, the pipe row's that has loose bowels pipe (1) welds, and welds long 30mm.
6. the crescent wearing-resistant tile that is used for boiler tube row according to claim 1, it is characterized in that: the material of said crescent wearing-resistant tile (2) is selected the 1Cr20Ni14Si2 heat-resistance and wear-resistance steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120092186XU CN202171243U (en) | 2011-04-01 | 2011-04-01 | Crescent wearable tile for boiler tube bundle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120092186XU CN202171243U (en) | 2011-04-01 | 2011-04-01 | Crescent wearable tile for boiler tube bundle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202171243U true CN202171243U (en) | 2012-03-21 |
Family
ID=45829438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120092186XU Expired - Fee Related CN202171243U (en) | 2011-04-01 | 2011-04-01 | Crescent wearable tile for boiler tube bundle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202171243U (en) |
-
2011
- 2011-04-01 CN CN201120092186XU patent/CN202171243U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Quansheng Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Zhang Quansheng Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120321 Termination date: 20130401 |