CN106931430A - CFB boiler water-cooling wall profiling wear strip - Google Patents
CFB boiler water-cooling wall profiling wear strip Download PDFInfo
- Publication number
- CN106931430A CN106931430A CN201710278842.7A CN201710278842A CN106931430A CN 106931430 A CN106931430 A CN 106931430A CN 201710278842 A CN201710278842 A CN 201710278842A CN 106931430 A CN106931430 A CN 106931430A
- Authority
- CN
- China
- Prior art keywords
- inner arc
- circle
- arc
- wear strip
- center
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 8
- 101100537937 Caenorhabditis elegans arc-1 gene Proteins 0.000 description 8
- 238000005299 abrasion Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M5/00—Casings; Linings; Walls
- F23M5/08—Cooling thereof; Tube walls
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The present invention relates to the Anti-wear Technology of CFBB, it is specifically related to a kind of CFB boiler water-cooling wall profiling wear strip, wear strip includes base, outside and two sides, base is arranged side by side the Inner arc of two or more and water screen tube external diameter Corresponding matching, the angle of Inner arc is less than 180 degree, the Inner arc center of circle is located at base outside, and two neighboring Inner arc distance of center circle is equal with two neighboring water screen tube centre-to-centre spacing, and Inner arc is chamfering with base junction；Outside includes two or more external arc, external arc is the same center of circle with Inner arc, two adjacent external arc intersections are rounding, side is more than 1/2nd of two adjacent Inner arc center of circle distances to the distance in the adjacent Inner arc center of circle, and side connects 1/2nd of distances with external arc junction distance more than two adjacent external arcs.The present invention have can material-saving, reduces cost while having raising rate of heat exchange, can not influence the protection of water-cooling wall, also play the effect of energy-saving and emission-reduction again.
Description
Technical field
The present invention relates to the Anti-wear Technology of CFBB, it is specifically related to a kind of profiling of CFB boiler water-cooling wall and prevents
Nog plate.
Background technology
Combustion technology of circulating fluidized is by the clean coal combustion technology of market highly recognition, with it efficiently, low stain, to coal
Kind of strong adaptability, the advantages of load regulatory control is good, is at home and abroad widely used and develops.And how to prevent from following
Circulation fluidized bed boiler furnace wall cooling abrasion booster is their ability to long-term safety, the key of stable operation.At present, recirculating fluidized bed
Boiler water wall abrasionproof mainly uses pyrolytic coating, sets up abrasionproof beam, and currently relatively more popular Chrome high Nickel alloys plate high is prevented
Mill technology, these measures all serve good effect on circulating fluidized bed boiler water-cooling wall wear problem is solved.
In terms of flow dynamic characteristic and fluidization theory from burner hearth, quick fluidised form is in boiler hearth of circulating fluidized bed
Change state, from roof of the furnace to bottom, the flow velocity of sticking wall flow, granule density and flux gradually increase, from the middle of burner hearth to
The water-cooled wall temperature that burner hearth periphery is set is again differentiated, and high concentration, the rapid decrease of big flux bed are to water-cooled in burner hearth
Wall is caused and washed away, and bed declines formed sticking wall flow and although enhances water-cooling wall heat exchange, but also water-cooling wall is caused simultaneously
Abrasion.Existing wear strip Anti-wear Technology is exactly anti-very well so as to serve in order to destroy the flow velocity of sticking wall flow particle and flow direction
Mill is acted on, but have impact on the heat exchange of heating surface to a certain extent and influence is generated on boiler efficiency, and pyrolytic coating is anti-
Mill technology is needed to put into substantial amounts of fund, and service life is short, and concentrated wear is caused after coming off, and finds not in time even booster
Blowing out.
The content of the invention
The technical problems to be solved by the invention be to provide one kind can material-saving, and heat exchange efficiency can be improved again
CFB boiler water-cooling wall profiling wear strip.
In order to solve the above technical problems, the technical solution adopted in the present invention is:A kind of profiling of CFB boiler water-cooling wall is prevented
Nog plate, wear strip includes base, outside and two sides, and base has been arranged side by side two or more and water screen tube external diameter Corresponding matching
Inner arc, the angle of Inner arc is less than 180 degree, and the Inner arc center of circle is located on the outside of base, the two neighboring Inner arc center of circle
Away from equal with two neighboring water screen tube centre-to-centre spacing, Inner arc is chamfering with base junction；Outside includes that two or more is cylindrical
Arc, external arc is the same center of circle with Inner arc, and two adjacent external arc intersections are rounding, side to the adjacent Inner arc center of circle
Distance is more than 1/2nd of two adjacent Inner arc center of circle distances, and side is adjacent cylindrical more than two with external arc junction distance
/ 2nd of arc connection distance.
As a preferred embodiment of the present invention：Described wear strip is low-carbon high-chromium nickel alloy plate, Inner arc and water-cooled
Wall pipe external diameter is identical, and the distance on the Inner arc center of circle to base straight line is 2-4 millimeters, and chamfering is（5-7）×（5-7）Millimeter, outward
Arc radius are more than inner arc radius（28-32）Millimeter, rounding it is a diameter of（8-12）Millimeter, side is justified to adjacent Inner arc
The half of the distance of heart Inner arc center of circle distance more adjacent than two is more（3-5）Millimeter.
Used as another preferred scheme of the invention, described wear strip includes three Inner arcs and three external arcs, prevents
Nog plate is inclined in same direction and is arranged in order on one wire, is overlapped by overlapping sideways between two blocks of adjacent wear strips.
There is following beneficial technique effect using the present invention of above-mentioned technical proposal：By setting for the outside to wear strip
Meter, can fully take into account the heat exchange efficiency of water-cooling wall, for one again under the technique effect for taking into account water-cooling wall entirety abrasionproof
For block abrasionproof, produced above-mentioned effect is limited or even can be ignored, but as the entirety of water-cooling wall, by multiple
A plurality of, multilayer the shoe that wear strip is arranged to, can play good heat transfer effect, improve thermal conversion rate, pass through
The simple measure of the same specification CFB boiler to having built up, the exhaust gas temperature of boiler can reduce by 5 degree or so, that is to say, that this
The temperature that part reduces is changed and make use of by water-cooling wall；As the abrasionproof of the high-chromium-nickel alloy plate of the technical program
Plate, from for another angle can material-saving, reduce production cost, and make simple；Three Inner arcs and three it is cylindrical
Arc, wear strip is inclined in same direction and is arranged in order on one wire, by side lap between two blocks of adjacent wear strips, this
Sample can either take into account Inner arc can be close to and water screen tube, the precision of the overlap joint pairing of wear strip can be improved again, together
When do not influence the welding to influence the heat exchange of water screen tube again.
In a word, the present invention have can material-saving, reduces cost, while have raising rate of heat exchange, again being capable of not shadow
The protection of Xiangshui County's cold wall, also plays the effect of energy-saving and emission-reduction.
Brief description of the drawings
The present invention is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is a kind of structural representation of existing wear strip（Two pieces of overlap joints）；
Fig. 2 is a kind of structural representation of existing wear strip（Two pieces of overlap joints）；
Fig. 3 is a kind of structural representation of this profiling wear strip（Two pieces of overlap joints）；
Fig. 4 is a kind of structural representation that this profiling wear strip is arranged on water-cooling wall.
Specific embodiment
With reference to accompanying drawing 1-4, CFB boiler water-cooling wall profiling wear strip, wear strip includes base 3, outside and two sides 4, bottom
Side 3 is arranged side by side the Inner arc 1 of two or more and the external diameter Corresponding matching of water screen tube 6, and Inner arc 1 specifically can be with water-cooling wall
The external diameter of pipe 6 is identical, and the angle of Inner arc 1 is less than 180 degree, and the Inner arc center of circle 5 is located at the outside of base 3, the Inner arc center of circle 5
Distance on to the straight line of base 3 is 2-4 millimeters, the two neighboring Inner arc center of circle 5 away from adjacent water screen tube center 5 ' away from equal,
Inner arc 1 is chamfering 8 with the junction of base 3, and the corresponding both sides length specification of chamfering 8 is set to（5-7）×（5-7）Millimeter；Outward
Side includes two or more external arc 2, and external arc 2 is the same center of circle, the path length of 2 radius ratio Inner arc of external arc 1 half with Inner arc 1
（28-32）Millimeter, the intersection of two adjacent external arc 2 be rounding 7, rounding it is a diameter of（8-12）Millimeter, side 4 is arrived adjacent
The distance in the Inner arc center of circle 5, more than 1/2nd of the two adjacent distances of the Inner arc center of circle 5, can be specifically than secondly more than for dividing
Go out 3-5 millimeters, and side 4 connects 1/2nd of distance more than two adjacent external arc 2 with the junction of external arc 2 distance, than it
3-5 more than 1/2nd millimeters.
During installation, for the water screen tube 6 being arranged side by side in CFB boiler, made of low-carbon high-chromium nickel alloy plate
Into this wear strip so that each Inner arc 1 and the external diameter of water screen tube 6 match pairing, after this wear strip is welded on water-cooled
On fin 9 between wall pipe 6, during using the profiling wear strip for setting three Inner arcs 1, pad is directly middle Inner arc 1
On the base 3 of both sides, for causing to turn into free end near the base 3 of side 4.Wear strip is tilted in a line in same direction
On be arranged in order, by side lap between two blocks of adjacent wear strips, fish scale bonding relation, weldering are formed between each wear strip
When connecing, first welding, specifically from the pad near adjacent wear strip, is welded positioned at the wear strip of upside from the downside on base 3,
Then for the wear strip of downside, specifically in the pad near upside wear strip, welded from the upside on base 3, so welded
Connect the shrinkage of rear solder joint so that two wear strip sides can fit more closely, the material stream for preventing gap and producing, and then
Influence the effect of abrasionproof.
Compared to existing wear strip as shown in Figure 1 and Figure 2, this wear strip reduces the material that overlap joint is overlapped, while also subtracting
Lack the length overlapped between overlap joint so that lap gap controllability is stronger, for being overlapped on the centre of water screen tube 6,
Solve and there is lap gap infringement is washed away to water screen tube 6.Generally speaking, this wear strip, falls to the high speed in boiler
Sticking wall flow carried out regular and the equidistance of water screen tube 6 guide functions, effectively raise the heat exchange of heating surface
Efficiency.
Claims (3)
1. a kind of CFB boiler water-cooling wall profiling wear strip, wear strip includes base, outside and two sides, it is characterised in that：Base
The Inner arc of two or more and water screen tube external diameter Corresponding matching is arranged side by side, the angle of Inner arc is less than 180 degree,
The Inner arc center of circle is located at base outside, and two neighboring Inner arc distance of center circle is equal with two neighboring water screen tube centre-to-centre spacing, inner circle
Arc is chamfering with base junction；Outside includes two or more external arc, and external arc is the same center of circle with Inner arc, and two is adjacent outer
Circular arc intersection is rounding, the distance of side to the adjacent Inner arc center of circle be more than two adjacent Inner arc center of circle distances two/
One, and side connects 1/2nd of distances with external arc junction distance more than two adjacent external arcs.
2. CFB boiler water-cooling wall profiling wear strip according to claim 1, it is characterised in that：Described wear strip is low
Carbon high-chromium-nickel alloy plate, Inner arc is identical with water screen tube external diameter, the distance on the Inner arc center of circle to base straight line be 2-4 in the least
Meter, chamfering is（5-7）×（5-7）Millimeter, outer arc radius are more than inner arc radius（28-32）Millimeter, rounding it is a diameter of
（8-12）Millimeter, the half of distance of the side to adjacent Inner arc center of circle Inner arc center of circle distance more adjacent than two is more（3-5）Millimeter.
3. CFB boiler water-cooling wall profiling wear strip according to claim 1, it is characterised in that：Described wear strip includes
Three Inner arcs and three external arcs, wear strip are inclined in same direction and are arranged in order on one wire, and adjacent two pieces are prevented
Overlapped by overlapping sideways between nog plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710278842.7A CN106931430A (en) | 2017-04-25 | 2017-04-25 | CFB boiler water-cooling wall profiling wear strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710278842.7A CN106931430A (en) | 2017-04-25 | 2017-04-25 | CFB boiler water-cooling wall profiling wear strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106931430A true CN106931430A (en) | 2017-07-07 |
Family
ID=59438129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710278842.7A Pending CN106931430A (en) | 2017-04-25 | 2017-04-25 | CFB boiler water-cooling wall profiling wear strip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106931430A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111503629A (en) * | 2020-06-01 | 2020-08-07 | 河南金亿冠热能设备材料有限公司 | Special-shaped wear-resistant plate and matched processing equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08254301A (en) * | 1995-03-16 | 1996-10-01 | Ishikawajima Harima Heavy Ind Co Ltd | Reactor wall structure of fluidized bed boiler |
| JP2011127817A (en) * | 2009-12-17 | 2011-06-30 | Ihi Corp | Furnace wall structure of fluidized bed boiler |
| CN104033923A (en) * | 2014-06-30 | 2014-09-10 | 刘上中 | CFB boiler membrane-wall grid anti-wear alloy plate |
| CN204922959U (en) * | 2015-09-14 | 2015-12-30 | 郑州三众耐磨技术有限公司 | Whole abrasionproof structure of CFB boiler water wall |
| CN205606540U (en) * | 2016-05-16 | 2016-09-28 | 山东成远实业有限公司 | Circulating fluidized bed wear proof device |
| CN206724146U (en) * | 2017-04-25 | 2017-12-08 | 郑州三众耐磨技术有限公司 | CFB boiler water-cooling wall profiling wear strip |
-
2017
- 2017-04-25 CN CN201710278842.7A patent/CN106931430A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08254301A (en) * | 1995-03-16 | 1996-10-01 | Ishikawajima Harima Heavy Ind Co Ltd | Reactor wall structure of fluidized bed boiler |
| JP2011127817A (en) * | 2009-12-17 | 2011-06-30 | Ihi Corp | Furnace wall structure of fluidized bed boiler |
| CN104033923A (en) * | 2014-06-30 | 2014-09-10 | 刘上中 | CFB boiler membrane-wall grid anti-wear alloy plate |
| CN204922959U (en) * | 2015-09-14 | 2015-12-30 | 郑州三众耐磨技术有限公司 | Whole abrasionproof structure of CFB boiler water wall |
| CN205606540U (en) * | 2016-05-16 | 2016-09-28 | 山东成远实业有限公司 | Circulating fluidized bed wear proof device |
| CN206724146U (en) * | 2017-04-25 | 2017-12-08 | 郑州三众耐磨技术有限公司 | CFB boiler water-cooling wall profiling wear strip |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111503629A (en) * | 2020-06-01 | 2020-08-07 | 河南金亿冠热能设备材料有限公司 | Special-shaped wear-resistant plate and matched processing equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206973535U (en) | CFB CFBB grid shoes | |
| CN102230623A (en) | Flat combustion device | |
| CN206724146U (en) | CFB boiler water-cooling wall profiling wear strip | |
| CN106931430A (en) | CFB boiler water-cooling wall profiling wear strip | |
| CN102958214B (en) | The protection screen of mineral hot furnace | |
| CN210320009U (en) | Energy-saving anti-abrasion structure for circulating fluidized bed boiler | |
| CN105444161B (en) | Environment-friendly and energy-efficient CFBB | |
| CN202907250U (en) | Protection screen of submerged arc furnace | |
| CN201944829U (en) | Wearing-preventing device for transition zone of fluidized bed boiler | |
| CN204922959U (en) | Whole abrasionproof structure of CFB boiler water wall | |
| CN202132950U (en) | Flat combustion device | |
| CN201751783U (en) | Inner structure of high-efficiency and energy-saving aluminum and aluminum alloy isothermal smelting furnace | |
| CN207196477U (en) | Circulating fluidized bed boiler water-cooling wall pipe abrasion-resistant diversion | |
| CN106152116A (en) | A kind of Novel anti-abrasion burning in circulating fluid bed boiler room water-cooling wall | |
| CN205299488U (en) | Environmental protection and energy saving type circulating fluidized bed boiler | |
| CN202582146U (en) | Wind guide wall for shaft furnace | |
| CN209672851U (en) | The transition flue duct of smelting furnace waste heat boiler | |
| CN206724148U (en) | Lateral wear strip | |
| CN210320010U (en) | Comb-shaped guide plate for preventing abrasion of water wall pipe of circulating fluidized bed boiler | |
| CN106885236A (en) | A kind of circulating fluidized bed boiler separator gas approach structure | |
| CN217763529U (en) | Anti-abrasion water-cooled wall bending structure | |
| CN211084120U (en) | Wear-resisting boiler water-cooling wall | |
| CN109579552B (en) | Transition flue of waste heat boiler of smelting furnace | |
| CN223121406U (en) | An adjustable anti-slip CFB boiler wear-resistant alloy plate | |
| CN220061736U (en) | Energy-saving emission mechanism of CFB boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 450000 Zhengzhou high tech Industrial Development Zone, Henan, Holly Street, No. 7 Applicant after: Zhengzhou Sanzhong Energy Technology Co., Ltd. Address before: 450000 Zhengzhou high tech Industrial Development Zone, Henan, Holly Street, No. 7 Applicant before: Zhengzhou Sanzhong Wear-resisting Technology Co., Ltd. |