CN201107001Y - Wear prevention structure of water cold wall tube of long direction fins with multi vertical fins - Google Patents
Wear prevention structure of water cold wall tube of long direction fins with multi vertical fins Download PDFInfo
- Publication number
- CN201107001Y CN201107001Y CNU200720177320XU CN200720177320U CN201107001Y CN 201107001 Y CN201107001 Y CN 201107001Y CN U200720177320X U CNU200720177320X U CN U200720177320XU CN 200720177320 U CN200720177320 U CN 200720177320U CN 201107001 Y CN201107001 Y CN 201107001Y
- Authority
- CN
- China
- Prior art keywords
- fin
- wall tube
- water wall
- screen tube
- water screen
- 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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Abstract
The utility model discloses a water wall tube wear-resisting structure, which comprises a water wall tube and a heat exchange fin arranged at the outer surface of the water wall tube, wherein, the heat exchange fin is provided with a wear-resisting fin which is composed of a long fin and a short fin. The wear-resisting fin of the wear-resisting structure can improve the flow field near the water wall tube, thereby achieving the effect that the abrasion of circulating particles towards the water wall tube can be relieved through improving the flow field near the water wall tube, and protecting the integrity of the water wall tube to the great extent. The water wall tube wear-resisting structure has the advantages of simple structure, reliable performance, long service life, easy maintenance, etc.
Description
Technical field
The utility model relates to the water screen tube abrasion-proof structure of fluidized-bed combustion boiler.
Background technology
Flue gas in the existing fluid bed boiler furnace, solid particle produces elutriation and three-dimensional flows fast under wind, secondary wind action.Meanwhile, solid particle is actually for irregular multidirectional collecting together in the downward reflux course along water screen tube, because the quick local friction that direct solid particle bump and whirlpool form makes water screen tube produce wearing and tearing.Especially reflux is run into boss and is swerved, and when promptly forming whirlwind shape eddy current, water screen tube is just caused abnormal wearing and tearing, and serious 2～3 months, just may worn out water screen tube.The water screen tube abrasionproof measure of using both at home and abroad is a spraying abrasion-proof alloy on water screen tube at present, and under normal circumstances the life-span of water screen tube can reach 1 year, but also exists the problem of life-span weak point and small boss.
The utility model content
At the deficiency that prior art exists, the purpose of this utility model is to provide a kind of water screen tube abrasion-proof structure.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of water screen tube abrasion-proof structure comprises the heat exchange fin on water screen tube and the outer surface thereof, and described heat exchange fin is provided with the abrasionproof fin.
Described abrasionproof fin is made up of long fin and brachypterism sheet.
Described brachypterism sheet is positioned at the both sides of long fin.
Described brachypterism sheet and long fin all hang down as for heat exchange fin.
Described brachypterism sheet and long fin are vertically arranged along the length direction of water screen tube.
Abrasionproof fin of the present utility model can improve near the flow field the water screen tube, reaches and slows down the wearing and tearing of circulating granular to water screen tube by improving near the water screen tube flow field, has protected the integrity of water screen tube to a great extent.Have simple in structure, dependable performance, long service life, be easy to beneficial effects such as maintenance.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of reference numerals is as follows:
1---water screen tube
2---heat exchange fin
3---long fin
4---the brachypterism sheet
As shown in Figure 1, the critical piece of this water screen tube abrasion-proof structure has the heat exchange fin 2 on water screen tube 1 and the outer surface thereof, heat exchange fin 2 is provided with the abrasionproof fin, this abrasionproof fin is made up of long fin 3 and brachypterism sheet 4, brachypterism sheet 4 is positioned at the both sides of long fin 3, brachypterism sheet 4 and long fin 3 all hang down as for heat exchange fin 2, and brachypterism sheet 4 is all vertically arranged along the length direction of water screen tube 1 with long fin 3.
Under many circumstances, the length fin is because coal or technology, the type of furnace, and also can adopt highly is the equal altitudes fin structure of width unanimity.The fin quantity that vertical welding is arranged on the fin that each adjacent two water-cooling wall connects is more than two, constitutes many fins structure.
The utility model is not limited to above-mentioned preferred forms, and anyone can draw other various forms of products under enlightenment of the present invention.Though but on its shape or structure, do any variation, every identical with the utility model or akin technical scheme is all within its protection domain.
Claims (5)
1, a kind of water screen tube abrasion-proof structure comprises the heat exchange fin on water screen tube and the outer surface thereof, it is characterized in that, described heat exchange fin is provided with the abrasionproof fin.
2, water screen tube abrasion-proof structure according to claim 1 is characterized in that, described abrasionproof fin is made up of long fin and brachypterism sheet.
3, water screen tube abrasion-proof structure according to claim 2 is characterized in that, described brachypterism sheet is positioned at the both sides of long fin.
4, water screen tube abrasion-proof structure according to claim 3 is characterized in that, described brachypterism sheet and long fin all hang down as for heat exchange fin.
5, water screen tube abrasion-proof structure according to claim 4 is characterized in that, described brachypterism sheet and long fin are vertically arranged along the length direction of water screen tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720177320XU CN201107001Y (en) | 2007-09-18 | 2007-09-18 | Wear prevention structure of water cold wall tube of long direction fins with multi vertical fins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720177320XU CN201107001Y (en) | 2007-09-18 | 2007-09-18 | Wear prevention structure of water cold wall tube of long direction fins with multi vertical fins |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201107001Y true CN201107001Y (en) | 2008-08-27 |
Family
ID=39958808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720177320XU Expired - Fee Related CN201107001Y (en) | 2007-09-18 | 2007-09-18 | Wear prevention structure of water cold wall tube of long direction fins with multi vertical fins |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201107001Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853423A (en) * | 2012-10-20 | 2013-01-02 | 郑州华宇耐磨制品有限公司 | Wear resisting method for water wall tubes of circulating fluidized bed boiler |
| 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 |
-
2007
- 2007-09-18 CN CNU200720177320XU patent/CN201107001Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853423A (en) * | 2012-10-20 | 2013-01-02 | 郑州华宇耐磨制品有限公司 | Wear resisting method for water wall tubes of circulating fluidized bed boiler |
| CN102853423B (en) * | 2012-10-20 | 2015-07-29 | 郑州华宇耐磨制品有限公司 | The anti-wearing method of circulating fluidized bed boiler water-cooling wall pipe |
| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080827 Termination date: 20091019 |