CN204922959U - Whole abrasionproof structure of CFB boiler water wall - Google Patents
Whole abrasionproof structure of CFB boiler water wall Download PDFInfo
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- CN204922959U CN204922959U CN201520707378.5U CN201520707378U CN204922959U CN 204922959 U CN204922959 U CN 204922959U CN 201520707378 U CN201520707378 U CN 201520707378U CN 204922959 U CN204922959 U CN 204922959U
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Abstract
The utility model provides a whole abrasionproof structure of CFB boiler water wall, the scheme is, a plurality of diaphragms group of setting up including the vertical interval of installing dense region water -cooling wall in the CFB boiler, diaphragm group is equipped with on the boiler water wall at the upper and lower both ends of the air outlet on boiler upper portion respectively, the diaphragm of air outlet lower extreme is organized and is equipped with a plurality of risers group between the furnace roof, each water -cooling wall both sides end in the boiler is close to its edge and is equipped with vertical riser group respectively. The utility model discloses arrange a plurality of diaphragms group at dense region, between organizing, preferred two diaphragms at dense region set up riser group, form confined protected area, diaphragm group and riser group that the air outlet regional setting surrounded the air outlet, make the air outlet region obtain abundant protection, four corners department is equipped with apart from the foot of a wall about 400mm's of portion riser group, make boiler efficiency higher, place the vortex washing away the root, the jet is equipped with diaphragm group from top to bottom respectively, fine protection has been carried out to the jet.
Description
Technical field
The utility model relates to CFB boiler, particularly the overall abrasion-proof structure of a kind of CFB boiler water wall.
Background technology
CFB CFBB is a kind of New-type boiler of high-efficiency low-pollution, main feature is that imitation frosted glass and desulfurizing agent carry out repeatedly through repeatedly circulating, low slag burning and desulphurization reaction, in stove, turbulent motion is strong, not only can reach NOx emission, 90% desulfuration efficiency, and have that fuel tolerance is wide, lime-ash is easy to the advantages such as comprehensive utilization.But also cruelly spill some problems, serious wear, undercapacity etc. when main manifestations is for running, especially wear problem is more outstanding, run the boiler less than a year, the heavy wear of water-cooling wall wall with refractory lining, refracto top (emulsion zone) pipe, weld seam position, corner place and air outlet position, even grind booster, and the accident that silver wearing and tearing cause constantly occurs.
Utility model content
For above-mentioned situation, for overcoming the defect of prior art, the utility model provides a kind of CFB boiler water wall overall abrasion-proof structure.
The technical solution of the utility model is, comprise the vertical spaced multiple transverse slat group being arranged on emulsion zone water-cooling wall in CFB boiler, the boiler water wall at the two ends up and down of the air outlet of described upper boiler is equipped with transverse slat group respectively, the transverse slat group of described air outlet lower end is provided with multiple riser group between furnace roof, and each water-cooling wall two side ends in described boiler is respectively equipped with vertical riser group near its edge.
The utility model arranges multiple transverse slat group at emulsion zone, preferably between two transverse slat groups of emulsion zone, arranges riser group, and form the protection zone closed, the placement of layout herein is also applicable to other position of burner hearth.Air outlet region arranges the transverse slat group and riser group that are surrounded by air outlet, makes air outlet region obtain sufficient protection.Corner place is provided with the riser group apart from the about 400mm in the foot of a wall portion, makes boiler efficiency higher, places eddy current washing away root.Jet is respectively equipped with transverse slat group up and down, has carried out good protection to jet.
Accompanying drawing explanation
Fig. 1 is the utility model first transverse slat front view.
Fig. 2 is the utility model second transverse slat front view.
Fig. 3 is the utility model riser side view.
Fig. 4 is the left view of Fig. 3.
Fig. 5 is the arrangement figure of the utility model emulsion zone transverse slat and riser.
Fig. 6 is the transverse slat of the utility model air outlet part and the arrangement figure of riser.
Fig. 7 is the overlap joint schematic diagram of the utility model transverse slat.
Fig. 8 is the relative position schematic diagram of the utility model riser.
Fig. 9 is that the utility model installs the top view of riser group at four, boiler place.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
As shown in Figures 1 to 9, the utility model comprises the vertical spaced multiple transverse slat group 2 being arranged on emulsion zone water-cooling wall 1 in CFB boiler, the boiler water wall 1 at the two ends up and down of the air outlet 3 of described upper boiler is equipped with transverse slat group 2 respectively, the transverse slat group 2 of described air outlet 3 lower end is provided with multiple riser group 4 between furnace roof, and each water-cooling wall 1 two side ends in described boiler is respectively equipped with vertical riser group 4 near its edge.
The water-cooling wall 1 of the both sides up and down of the jet of described boiler is respectively equipped with transverse slat group 2.
Vertically 600mm-800mm is spaced apart between the transverse slat group 2 of described emulsion zone.
Described transverse slat group 2 comprises the first transverse slat 5 of end and afterbody and the second transverse slat 6 of mid portion, one of them side base of described first transverse slat 5 having two first inner groovy 501, first transverse slats 5 corresponding with water screen tube external diameter and base are 90 degree or first imploded arcs 502 corresponding with water screen tube external diameter slightly larger than 90 degree.The base of described second transverse slat 6 have two second inner groovy 601, second transverse slat 6 bases corresponding with water screen tube external diameter with between two side all in 90 degree or slightly larger than second imploded arcs 602 corresponding with water screen tube external diameter of 90 degree.
The two ends up and down of the riser 7 in described riser group 4 are the inclined plane that can mutually dock.Multiple riser 7 is vertically welded on successively on the fin between water screen tube and forms riser group 4, the interlaced setting of inclined plane of described adjacent two risers 7.
Interval 2-5 root water screen tube 8 between adjacent two riser groups 4 at described air outlet 3 place.
On water-cooling wall between two transverse slat groups 2 that described emulsion zone is adjacent, lateral separation is provided with multiple riser group.
An interval 2-5 water screen tube 8 between adjacent two riser groups 4 of described emulsion zone.
In arc transition between first inner groovy 501 of the first transverse slat 5 and the base of the first transverse slat 5.
In arc transition between second inner groovy 601 of described second transverse slat 6 and the base of the second transverse slat 6.
Multiple second transverse slats 6 of the centre of the utility model transverse slat group 2 are middle two grooves, both sides are the imploded arcs cooperatively interacted, in use, the plate pin on the inner groovy both sides of the mid portion of the second transverse slat 6 is welded on water-cooling wall fin, the inner groovy of mid portion is enclosed within water screen tube, three middle plate pin are welded on the fin between two water screen tubes, then the side in imploded arcs of adjacent two transverse slats is enclosed within same water screen tube respectively, then both sides are overlapped, when the angle of imploded arcs is just in time 90 degree, now directly dock, when slightly larger than 90 degree, for mutual overlap joint, the two ends of the second transverse slat are not welded, expanding with heat and contract with cold of causing is carried out welding and easily the shortcoming that solder joint struts in the end avoiding traditional wear strip, and traditional plate will carry out both sides welding at fin lap position, and the lap-joint in this programme not to weld on water screen tube, do not need to carry out both sides welding in same fin position.Riser in the utility model adopts the mode arranging the inclined plane cooperatively interacted at the two ends up and down of a rectangular slab, when making two risers carry out interval docking, two inclined planes neither contact, and it is overlapped, this just makes riser group can well overcome horizontal material flow, interval is had between two risers, avoiding riser expands with heat and contract with cold on the impact caused, owing to not needing to carry out overlap overlap joint in end or directly dock between two risers, save material to a certain extent, reduce cost.
The utility model arranges multiple transverse slat group at emulsion zone, preferably between two transverse slat groups of emulsion zone, arranges riser group, and form the protection zone closed, the placement of layout herein is also applicable to other position of burner hearth.Air outlet region arranges the transverse slat group and riser group that are surrounded by air outlet, makes air outlet region obtain sufficient protection.Corner place is provided with the riser group apart from the about 400mm in the foot of a wall portion, makes boiler efficiency higher, places eddy current washing away root.Jet is respectively equipped with transverse slat group up and down, has carried out good protection to jet.
The utility model is protected region targetedly, substantially avoided tiny zone chisel dig, effective.Reduce the gap that compoboard inner groovy portion is positioned at water screen tube, be originally three closed inner groovies, boiler water wall Long-Time Service is easily out of shape, gap between traditional wear strip is caused to change greatly, and the utility model is two inner groovies, accumulated error is few, (reaches 3-6mm in the past, can be controlled in now between 0-3mm), better decrease " three-body-abrasion " of surface current to pipe.The utility model can use cast shaping plate, heat-resistant sheet or refractory plate, adopts A402 welding rod accumulated heat DC welder to be welded on water-cooling wall fin.
Claims (10)
1. the overall abrasion-proof structure of CFB boiler water wall, it is characterized in that, comprise the vertical spaced multiple transverse slat groups (2) being arranged on emulsion zone water-cooling wall (1) in CFB boiler, the boiler water wall (1) at the two ends up and down of the air outlet (3) of described upper boiler is equipped with transverse slat group (2) respectively, be provided with multiple riser group (4) between the transverse slat group (2) to furnace roof of described air outlet (3) lower end, each water-cooling wall (1) two side ends in described boiler is respectively equipped with vertical riser group (4) near its edge.
2. the overall abrasion-proof structure of CFB boiler water wall according to claim 1, is characterized in that, the water-cooling wall (1) of the both sides up and down of the jet of described boiler is respectively equipped with transverse slat group (2).
3. the overall abrasion-proof structure of CFB boiler water wall according to claim 1, it is characterized in that, on the water-cooling wall between two transverse slat groups (2) that described emulsion zone is adjacent, lateral separation is provided with multiple riser group.
4. according to the overall abrasion-proof structure of the arbitrary described CFB boiler water wall of claim 1-3, it is characterized in that, described transverse slat group (2) comprises first transverse slat (5) of end and afterbody and second transverse slat (6) of mid portion, the base of described first transverse slat (5) has two first inner groovies (501) corresponding with water screen tube external diameter, one of them side and the base of the first transverse slat (5) are 90 degree or first imploded arcs (502) corresponding with water screen tube external diameter slightly larger than 90 degree, the base of described second transverse slat (6) has two second inner groovies (601) corresponding with water screen tube external diameter, second transverse slat (6) base with between two side all in 90 degree or slightly larger than second imploded arcs (602) corresponding with water screen tube external diameter of 90 degree.
5., according to the overall abrasion-proof structure of the arbitrary described CFB boiler water wall of claim 1-3, it is characterized in that, the two ends up and down of the riser (7) in described riser group (4) are the inclined plane that can mutually dock.
6. the overall abrasion-proof structure of CFB boiler water wall according to claim 5, it is characterized in that, multiple riser (7) is vertically welded on successively on the fin between water screen tube and forms riser group (4), the interlaced setting of inclined plane of described adjacent two risers (7).
7. the overall abrasion-proof structure of CFB boiler water wall according to claim 1, is characterized in that, interval 2-5 root water screen tube (8) between adjacent two riser groups (4) at described air outlet (3) place.
8. the overall abrasion-proof structure of CFB boiler water wall according to claim 1, is characterized in that, is vertically spaced apart 600mm-800mm between the transverse slat group (2) of described emulsion zone.
9. the overall abrasion-proof structure of CFB boiler water wall according to claim 4, is characterized in that, in arc transition between first inner groovy (501) of the first transverse slat (5) and the base of the first transverse slat (5).
10. the overall abrasion-proof structure of CFB boiler water wall according to claim 4, is characterized in that, in arc transition between second inner groovy (601) of described second transverse slat (6) and the base of the second transverse slat (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520707378.5U CN204922959U (en) | 2015-09-14 | 2015-09-14 | Whole abrasionproof structure of CFB boiler water wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520707378.5U CN204922959U (en) | 2015-09-14 | 2015-09-14 | Whole abrasionproof structure of CFB boiler water wall |
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| CN204922959U true CN204922959U (en) | 2015-12-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545847A (en) * | 2016-12-08 | 2017-03-29 | 河南鼎盛铝业有限公司 | Circulating fluidized bed boiler water-cooling wall superconduction shoe |
| CN106931430A (en) * | 2017-04-25 | 2017-07-07 | 郑州三众耐磨技术有限公司 | CFB boiler water-cooling wall profiling wear strip |
| CN106944760A (en) * | 2017-04-14 | 2017-07-14 | 郑州三众耐磨技术有限公司 | Water-cooling wall abrasionproof scale type welding method |
-
2015
- 2015-09-14 CN CN201520707378.5U patent/CN204922959U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545847A (en) * | 2016-12-08 | 2017-03-29 | 河南鼎盛铝业有限公司 | Circulating fluidized bed boiler water-cooling wall superconduction shoe |
| CN106944760A (en) * | 2017-04-14 | 2017-07-14 | 郑州三众耐磨技术有限公司 | Water-cooling wall abrasionproof scale type welding method |
| CN106944760B (en) * | 2017-04-14 | 2019-05-03 | 郑州三众耐磨技术有限公司 | Water-cooling wall abrasionproof scale type welding method |
| CN106931430A (en) * | 2017-04-25 | 2017-07-07 | 郑州三众耐磨技术有限公司 | CFB boiler water-cooling wall profiling wear strip |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450000 Zhengzhou high tech Industrial Development Zone, Henan, Holly Street, No. 7 Patentee after: Zhengzhou Sanzhong Energy Technology Co., Ltd. Address before: 450000 Zhengzhou high tech Industrial Development Zone, Henan, Holly Street, No. 7 Patentee before: Zhengzhou Sanzhong Wear-resisting Technology Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |