CN203757700U - Wear-resisting water cooling wall pipe screen - Google Patents
Wear-resisting water cooling wall pipe screen Download PDFInfo
- Publication number
- CN203757700U CN203757700U CN201420042686.6U CN201420042686U CN203757700U CN 203757700 U CN203757700 U CN 203757700U CN 201420042686 U CN201420042686 U CN 201420042686U CN 203757700 U CN203757700 U CN 203757700U
- Authority
- CN
- China
- Prior art keywords
- wear
- resisting
- abrasionproof
- water cooling
- cooling wall
- 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.)
- Withdrawn - After Issue
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model provides a wear-resisting water cooling wall pipe screen and belongs to the technical field of boilers. The wear-resisting water cooling wall pipe screen comprises a water cooling wall pipe, fin flat steel and a wear-resisting plate, wherein the water cooling wall pipe and the fin flat steel are welded together to form a screen; the wear-resisting plate is fixedly arranged above the fin flat steel. The wear-resisting plate is composed of a wear-resisting side vertical plate, a wear-resisting top plate and an overturning edge. The overturning edge is semi-circular-arc-shaped; a concave surface of the overturning edge is arranged outwards and is aligned to incoming flow smoke; the diameter of the semi-circular-arc-shaped overturning edge is 1-2cm. A connection manner of the fin flat steel, the wear-resisting side vertical plate, the wear-resisting top plate and the overturning edge is welding or rolling molding. The wear-resisting water cooling wall pipe screen provided by the utility model has the advantages of good wear-resisting performance, convenience in machining and manufacturing, long service life and the like. Particularly, the wear-resisting water cooling wall pipe screen is applicable to a heated surface distributed in a horizontal flue of an industrial boiler of a small-size circulating fluidized bed.
Description
Technical field
The utility model relates to a kind of boiler water wall tube panel, relates in particular to a kind of Wear-proof water cooled wall tube panel that is applicable to Development on Industrial Boiler of Circulating Fluidized Bed, belongs to boiler technology field.
Background technology
Water-cooling wall is the evaporating heating surface of the boilers such as fire coal, fuel oil, combustion gas, combustion solid waste, is made up of pipe and fin.In CFBB, because the material concentration in flue gas is higher, be generally greater than 10kg/m
3above, material is serious to the erosive wear of water-cooling wall.Particularly, to small-sized Development on Industrial Boiler of Circulating Fluidized Bed, flow and can not fully develop, have the mixed and disorderly Gas-particle Flows of direction in burner hearth, wear problem is more outstanding.Chinese patent CN200510126362.6 has announced a kind of Horizontal type circulating fluid bed combustion apparatus and circulating combustion method thereof, Chinese patent CN201010110352.4 has announced a kind of multipath circulating fluidized bed boiler, these two types of boilers include main combustion chamber, subsidiary combustion chamber and secondary furnace, all there is heavy wear problem in the side water wall that the just U-shaped passage place between inverted U passage and subsidiary combustion chamber and the secondary furnace between main combustion chamber and subsidiary combustion chamber arranges, its common solution is to cover angle steel on water screen tube herein, but abrasionproof effect is bad.The wearing and tearing of existing industrial circulating fluid bed boiler water-cooling wall are that needs are paid close attention to and problem demanding prompt solution.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, panelized-tube-wall section that abrasionproof is effective.
The utility model is achieved through the following technical solutions:
A kind of Wear-proof water cooled wall tube panel, it comprises water screen tube, fin band steel and wear strip, it is characterized in that: wear strip is by abrasionproof cant board, it comprises water screen tube abrasionproof top board and flange composition, fin band steel and wear strip, water screen tube connects into panel by fin band steel, wear strip is fixed on fin band steel, it is characterized in that: wear strip is by abrasionproof cant board, abrasionproof top board and flange composition, wear strip is T-shape and is connected to the centre of fin band steel by abrasionproof cant board, the other end of abrasionproof cant board and abrasionproof top board Cheng “ ∟ " 90 ° of connections of type, one side of abrasionproof top board is connected with flange, flange is semicircular arc, its concave surface outwardly, and center of arc's line of flange is in the plane at abrasionproof top board place.The concave surface of semi arch flange, faces toward incoming flow flue gas outwardly.The diameter d of flange is 1～2cm.Between fin band steel, abrasionproof cant board, abrasionproof top board and flange by being welded together, also can overall roll forming between abrasionproof cant board, abrasionproof top board and flange.
The utility model compared with prior art, has the following advantages and high-lighting effect: 1. abrasionproof performance is good.2. be convenient to processing and manufacture.3. special adaptation, is arranged in the flat flue of circulating fluidized bed boiler water, overcomes the transversal flow of high material concentration flue gas to water screen tube.
Brief description of the drawings
Fig. 1 is the related a kind of Wear-proof water cooled wall tube panel schematic diagram of the utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the wear strip schematic diagram of the related a kind of Wear-proof water cooled wall tube panel of the utility model.
In figure: 1-water screen tube; 2-fin band steel; 3-wear strip; 4-abrasionproof cant board; 5-abrasionproof top board; 6-flange; The high ash-laden gas of 7-.
Detailed description of the invention
Describe concrete structure of the present utility model, operation principle and embodiment in detail below in conjunction with accompanying drawing:
Fig. 1 is the related a kind of Wear-proof water cooled wall tube panel schematic diagram of the utility model, Fig. 2 is the A-A cutaway view of Fig. 1, Fig. 3 is the wear strip schematic diagram of the related a kind of Wear-proof water cooled wall tube panel of the utility model, it comprises water screen tube 1, fin band steel 2 and wear strip 3, water screen tube 1 connects into panel by fin band steel 2, and wear strip 3 is fixed on fin band steel 2.Wear strip 3 is made up of abrasionproof cant board 4, abrasionproof top board 5 and flange 6, wear strip 3 is T-shape and is connected to the centre of fin band steel 2 by abrasionproof cant board 4, the other end of abrasionproof cant board 4 and abrasionproof top board 5 Cheng “ ∟ " 90 ° of connections of type; the opposite side of abrasionproof top board 5 is connected with flange 6; flange 6 is semicircular arc; outwardly, and center of arc's line of flange 6 is in the plane at abrasionproof top board 5 places for its concave surface.The flange 6 of semicircular arc, its concave surface, is directly faced high ash-laden gas 7 outwardly.The diameter d of semi arch flange 6 is 1.5 cm.
Connected mode between fin band steel 2, abrasionproof cant board 4, abrasionproof top board 5 and flange 6 is welding.
When fin band steel 2 and abrasionproof cant board 4 weld, abrasionproof cant board 4, abrasionproof top board 5 and the overall roll forming of flange 6, form another embodiment of the utility model patent.
In the time that the flue gas 7 of high material concentration (high dust-laden) is flowed through water-cooling wall, wear strip 3 can stop that material contacts with water screen tube 1, thus wear prevention.The flange 6 of semicircular arc is conducive to guide air-flow, and the material impacting in flue gas, to wear strip 3, then can flow downward along flange 6 under Action of Gravity Field, avoids further wearing and tearing, thereby improves the service life of wear strip.
The utility model is specially adapted to be arranged in the both walls water-cooling wall in recirculating fluidized bed horizontal flue.
Claims (4)
1. a Wear-proof water cooled wall tube panel, it comprises water screen tube (1), fin band steel (2) and wear strip (3), water screen tube (1) connects into panel by fin band steel (2), wear strip (3) is fixed on fin band steel (2), it is characterized in that: wear strip (3) is by abrasionproof cant board (4), abrasionproof top board (5) and flange (6) composition, wear strip (3) is T-shape and is connected to the centre of fin band steel (2) by abrasionproof cant board (4), the other end of abrasionproof cant board (4) and abrasionproof top board (5) Cheng “ ∟ " 90 ° of connections of type, the opposite side of abrasionproof top board (5) is connected with flange (6), flange (6) is semicircular arc, its concave surface outwardly, and center of arc's line of flange (6) is in the plane at abrasionproof top board (5) place.
2. a kind of Wear-proof water cooled wall tube panel according to claim 1, is characterized in that: the diameter d of semi arch flange (6) is 1～2cm.
3. according to a kind of Wear-proof water cooled wall tube panel described in claim 1 or 2, it is characterized in that: the connected mode between fin band steel (2), abrasionproof cant board (4), abrasionproof top board (5) and flange (6) is welding.
4. according to a kind of Wear-proof water cooled wall tube panel described in claim 1 or 2, it is characterized in that: fin band steel (2) and abrasionproof cant board (4) welding, abrasionproof cant board (4), abrasionproof top board (5) and the overall roll forming of flange (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420042686.6U CN203757700U (en) | 2014-01-23 | 2014-01-23 | Wear-resisting water cooling wall pipe screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420042686.6U CN203757700U (en) | 2014-01-23 | 2014-01-23 | Wear-resisting water cooling wall pipe screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203757700U true CN203757700U (en) | 2014-08-06 |
Family
ID=51252968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420042686.6U Withdrawn - After Issue CN203757700U (en) | 2014-01-23 | 2014-01-23 | Wear-resisting water cooling wall pipe screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203757700U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742900A (en) * | 2014-01-23 | 2014-04-23 | 北京一亚高科能源科技有限公司 | Anti-abrasion water wall tube panel |
-
2014
- 2014-01-23 CN CN201420042686.6U patent/CN203757700U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742900A (en) * | 2014-01-23 | 2014-04-23 | 北京一亚高科能源科技有限公司 | Anti-abrasion water wall tube panel |
| CN103742900B (en) * | 2014-01-23 | 2015-12-09 | 北京一亚高科能源科技有限公司 | A kind of Anti-abrasion water wall tube panel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140806 Effective date of abandoning: 20151209 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |