CN202056866U - Abrasion-resistant diversion device for water cooled wall of circulation fluidized bed boiler - Google Patents
Abrasion-resistant diversion device for water cooled wall of circulation fluidized bed boiler Download PDFInfo
- Publication number
- CN202056866U CN202056866U CN2010206999651U CN201020699965U CN202056866U CN 202056866 U CN202056866 U CN 202056866U CN 2010206999651 U CN2010206999651 U CN 2010206999651U CN 201020699965 U CN201020699965 U CN 201020699965U CN 202056866 U CN202056866 U CN 202056866U
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- abrasion
- abrasionproof
- tiles
- water cooled
- water
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Abstract
The utility model belongs to an accessory of the water cooled wall of a circulation fluidized bed boiler, in particular to an abrasion-resistant diversion device for a water cooled wall of a circulation fluidized bed boiler. Two abrasion-resistant diversion tiles are welded to each water cooled wall pipe of a film type water cooled wall, the upper edges of the abrasion-resistant diversion tiles are welded to the water cooled wall pipe, the abrasion-resistant diversion tiles extend downward in an inclined mode, and two side edges of the abrasion-resistant diversion tiles are welded to fins. The abrasion-resistant diversion tiles are distributed in a wave shape. Two adjacent abrasion-resistant diversion tiles on a wave line are welded to two adjacent water cooled wall pipes with the height difference ranging from 0.2m to 0.4m, thereby effectively reducing the speed of materials flushing a pipe wall, avoiding partial vortex problem of particles, and further achieving the effect of abrasion-resistance. Simultaneously, the abrasion-resistant diversion device for the water cooled wall of the circulation fluidized bed boiler further has the advantages of being simple to produce, convenient to weld, strong in implementation and the like.
Description
Technical field
The utility model belongs to the CFBB fittings equipment, particularly a kind of abrasionproof guiding device of circulating fluidized bed boiler water-cooling wall pipe.
Background technology
The maximum difference of CFBB and conventional pulverized-coal stove is to have a large amount of recycle stocks, these recycle stocks move upward from lower furnace portion under the carrying of flue gas, oarse-grained material just drops into lower furnace portion and rises again when rising to certain altitude, particle is thin more, and the height of rising is high more.Enough thin particle passes roof of the furnace and enters in the cyclone separator, and in the material, the separated device of oarse-grained material is caught to get off to send back to and participated in next circulation in the burner hearth in this section.Just because of there is the circulation of these materials, caused that water screen tube inevitably weares and teares in the CFBB, in the middle of all abrading sections, the most serious with the wearing and tearing of water-cooling wall pipe of burner hearth and refractory material intersection again.The wall place is high-speed, the grain flow of high concentration washes away tube wall, and the boss of intersection changes particle motion and forms local eddy currents, thereby has aggravated the degree of wear.In order to eliminate the influence of eddy current, water screen tube and refractory material intersection should seamlessly transit during design.Yet, solve wear problem from root, must be from the speed that reduces " Bian Biliu ", change its liquid form and start with.
Summary of the invention
The utility model proposes a kind of circulating fluidized bed boiler water-cooling wall antiwear device that can obviously reduce the water-cooling wall wearing and tearing at the erosive wear principle of water-cooling wall, it is welded on water screen tube and the fin and by waveform arranges.
The utility model is by the following technical solutions:
This antiwear device comprises fin panel casing and fin, two blocks of abrasionproof water conservancy diversion tiles of welding on every water screen tube of fin panel casing; The top edge and the water screen tube of described abrasionproof water conservancy diversion tile weld, and abrasionproof water conservancy diversion tile is tilted to down extension, and its dual-side is welded on the fin; Abrasionproof water conservancy diversion tile arranges that by wave pattern adjacent two abrasionproof water conservancy diversion tiles are welded on adjacent two water screen tubes with the difference in height of 0.2-0.4m, and changes the direction of upstream or downstream every 2～10 wearing-resistant tiles; Two blocks of abrasionproof water conservancy diversion tiles on every water screen tube are 0.5～5m at interval.
Described abrasionproof water conservancy diversion tile is the tapered annular structure, and the width about it between two ends is 0.8～1.5cm.
The lower end diameter of described abrasionproof water conservancy diversion tile is 1.2-1.3 a times of water screen tube diameter.
The beneficial effects of the utility model are:
Can control wall bed material decrease speed, alleviate the degree of wear of water screen tube, the situation of moving on the abration position that corrugated arrangement design can avoid the material local eddy currents to cause.In addition this device also have make simple, convenient welding, advantage such as exploitativeness is strong.
Description of drawings
Fig. 1 is the front view of water-cooling wall abrasionproof flow-guiding structure;
Fig. 2 is the vertical view of water-cooling wall abrasionproof flow-guiding structure;
Fig. 3 is that the abrasionproof water conservancy diversion is watt at the intrafascicular layout schematic diagram of water screen tube.
Number in the figure:
The 1-water screen tube; 2-abrasionproof water conservancy diversion tile; The 3-fin.
The specific embodiment
The utility model provides a kind of circulating fluidized bed boiler water-cooling wall antiwear device, below in conjunction with the drawings and specific embodiments the utility model is described further.
Accompanying drawing has provided specific embodiment of the utility model, and abrasionproof water conservancy diversion tile 2 forms according to the diameter casting of water screen tube 1, is the tapered annular curved-surface structure, as shown in Figure 1.The upper end and the water screen tube 1 of abrasionproof water conservancy diversion tile 2 are complementary, and it is seamlessly transitted, and its lower end diameter is 1.2 times of water screen tube diameter, and limit, the left and right sides is welded on respectively on adjacent two fins 3, and the width between the two ends is 1cm up and down.
As shown in Figure 3, abrasionproof water conservancy diversion tile 2 is arranged by wave pattern, adjacent two abrasionproof water conservancy diversion tiles 2 are welded on adjacent two fins with the difference in height of 0.3m, and every 4 directions that change upstream or downstream, two blocks of abrasionproof water conservancy diversion tiles on every water screen tube are 2m at interval.
This structure can effectively be controlled wall bed material decrease speed, alleviates the degree of wear of water screen tube, the situation of moving on the abration position that corrugated arrangement design can avoid the material local eddy currents to cause.
Claims (3)
1. circulating fluidized bed boiler water-cooling wall abrasionproof guiding device comprises fin panel casing and fin, it is characterized in that, goes up welding two blocks of abrasionproof water conservancy diversion tiles (2) at the every water screen tube (1) of fin panel casing; The top edge of described abrasionproof water conservancy diversion tile (2) and water screen tube (1) weld, and abrasionproof water conservancy diversion tile (2) is tilted to down extension, and its dual-side is welded on the fin (3); Abrasionproof water conservancy diversion tile (2) arranges that by wave pattern adjacent two abrasionproof water conservancy diversion tiles (2) are welded on adjacent two water screen tubes with the difference in height of 0.2-0.4m on the wave, and changes the direction of upstream or downstream every 2～10 wearing-resistant tiles; Two blocks of abrasionproof water conservancy diversion tiles (2) on every water screen tube are 0.5～5m at interval.
2. circulating fluidized bed boiler water-cooling wall abrasionproof guiding device according to claim 1 is characterized in that described abrasionproof water conservancy diversion tile (2) is the tapered annular structure, and the width about it between two ends is 0.8～1.5cm.
3. circulating fluidized bed boiler water-cooling wall abrasionproof guiding device according to claim 1 is characterized in that, the lower end diameter of described abrasionproof water conservancy diversion tile (2) is 1.2-1.3 a times of water screen tube (1) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206999651U CN202056866U (en) | 2010-12-30 | 2010-12-30 | Abrasion-resistant diversion device for water cooled wall of circulation fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206999651U CN202056866U (en) | 2010-12-30 | 2010-12-30 | Abrasion-resistant diversion device for water cooled wall of circulation fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202056866U true CN202056866U (en) | 2011-11-30 |
Family
ID=45016839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206999651U Expired - Fee Related CN202056866U (en) | 2010-12-30 | 2010-12-30 | Abrasion-resistant diversion device for water cooled wall of circulation fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202056866U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052668A (en) * | 2010-12-30 | 2011-05-11 | 华北电力大学 | Anti-wear flow guide device of water wall of circulating fluidized bed (CFB) boiler |
| CN102913901A (en) * | 2012-11-09 | 2013-02-06 | 瓮福（集团）有限责任公司 | Wear-resistant device of water cooling pipe wall of circulation fluidized bed boiler |
-
2010
- 2010-12-30 CN CN2010206999651U patent/CN202056866U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052668A (en) * | 2010-12-30 | 2011-05-11 | 华北电力大学 | Anti-wear flow guide device of water wall of circulating fluidized bed (CFB) boiler |
| CN102913901A (en) * | 2012-11-09 | 2013-02-06 | 瓮福（集团）有限责任公司 | Wear-resistant device of water cooling pipe wall of circulation fluidized bed boiler |
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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: 20111130 Termination date: 20151230 |
|
| EXPY | Termination of patent right or utility model |