CN206018598U - A kind of boiler water wall antisepsis protector - Google Patents
A kind of boiler water wall antisepsis protector Download PDFInfo
- Publication number
- CN206018598U CN206018598U CN201621021646.9U CN201621021646U CN206018598U CN 206018598 U CN206018598 U CN 206018598U CN 201621021646 U CN201621021646 U CN 201621021646U CN 206018598 U CN206018598 U CN 206018598U
- Authority
- CN
- China
- Prior art keywords
- wall
- water
- boiler
- side wall
- deflector
- 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.)
- Active
Links
Abstract
A kind of boiler water wall antisepsis protector; install additional on the water-cooling wall of wall and right-side wall on the left of the boiler for heat primary air to be caused left side wall and the guiding device at right-side wall zone line water-cooling wall; the bellows being connected with guiding device are provided with water-cooling wall back-fire side, and bellows are also associated with heat primary air main pipe.This utility model is by being provided for heat primary air is caused the guiding device at left side wall and right-side wall zone line water-cooling wall on side wall, heat primary air is caused at side wall zone line water-cooling wall, to increase oxygen content herein, improve side wall zone line water-cooling wall atmosphere of adhesion wall, prevent the generation of high temperature corrosion；Wind regime takes from heat primary air main pipe, and the pathogenic wind-warm and hot secondary air temperature on the one hand being entered burner hearth by side wall bellows is close to, it is to avoid affect boiler efficiency, the air-supply momentum of entrance burner hearth on the other hand can be made to be enough to overcome inner flue gas of the stove Involving velocity.This utility model apparatus structure is simple, and substantially, the convenient boiler for having put into operation carries out relevant art transformation to effect.
Description
Technical field
This utility model belongs to field of boilers, and in particular to a kind of boiler water wall antisepsis protector.
Background technology
For improving the utilization ratio of coal fired power plant and alleviating the pressure of " carbon emission ", ultra supercritical coal-burning boiler was in recent years
There is swift and violent development, while also occurring in that new technical barrier.600MW, 1000MW opposed firing combustion that the country has gone into operation
Generally existing water wall high temperature corrosion problem in burning boiler, causes water-cooling wall trommel substantially, has a strong impact on boiler operatiopn peace
Entirely.As at certain 600MW supercritical face-fired boiler side wall, water-cooling wall trommel thinnest part 3.0～4.5mm of residual wall thickness is (former
Design wall thickness 7.5mm)；Certain 1000MW face-fired boilers shutdown maintenance finds that both walls water screen tube wall thickness reduction is up to
About 2mm, changes totally 2000 meters of tubing 599.
Boiler water-cooling wall high-temperature corrosion problem is mainly higher with coal-fired sulfur content, and adherent have a reducing atmosphere, flue gas and
Breeze airflow the factor such as to wash away relevant.Under anoxia condition in stove, burning produces the H of certain content to coal-fired sulphur content2S, H2S can
Directly reacted generation FeS with simple metal in water-cooling wall.H2S can also be with the Fe of water-cooled wall surface3O4Be combined in oxide layer
FeO(Fe3O4=Fe2O3FeO) reaction generates FeS.When being stained with grieshoch temperature and being higher, FeS can be made with the oxygen in medium again
With generation Fe3O4, so that oxygen corrosion is further carried out.For Large Copacity Opposite Firing Boiler, in burner hearth both walls
Between region easily form flow stagnation area, oxygen amount is low, and reducibility gas CO contents are higher, when in stove, combustion conditions are good, air distribution
When unreasonable, nearby reducing atmosphere strengthens both walls water-cooling wall, is that high temperature corrosion creates advantage.
In order to avoid the water-cooling wall wall thickness reduction that high temperature corrosion is caused, it is ensured that safe operation of the boiler, Large Copacity opposed firing
Boiler both walls take anti-corrosion spray measure mostly, spray corrosion resistant metal coating, by corrosivity gas on both walls water-cooling wall
Atmosphere is isolated with tubing matrix Fe, slows down high temperature corrosion with this.But the safeguard procedures of this passive type can not essence ground solution
Certainly High Temperature Corrosion, the on the contrary peeling of corrosion-inhibiting coating increase water-cooling wall operation risk, increase boiler maintenance maintenance workload.
Both walls water wall high temperature corrosion is solved the problems, such as, is at all to improve side water wall atmosphere of adhesion wall, is increased side wall
The oxygen amount of water-cooled wall region.Improving side water wall atmosphere of adhesion wall has three kinds of modes：(1) carry out firing optimization, optimize air distribution.Logical
Crossing increases the intake of close side wall burner, adjusts suitable burner secondary wind swirl intensity, increases at side water wall
Oxygen amount.Burner air distribution may be caused not apply to yet with coal-fired coal varitation, and take the air distribution mode increase
The NO that burning is producedx, increased the operation pressure of denitrating system；(2) burner reconstruction.By entering to the burner near side wall
Row transformation, weakens the intensity of its fractional combustion, improves the combustion conditions in side wall region.But the transformation involved by burner reconstruction
Costly, and the NO that burner reconstruction after-combustion is producedxContent increases；(3) adherent wind transformation.Presently relevant boiler maker
Adherent wind arrangement is installed additional using front-back wall or side wall in family, scientific research institutions.The adherent wind apparatus volume that installs on front-back wall
Larger, need significantly to transform water-cooling wall, and in order that air quantity can pass through combustion product gases enter side water wall near,
Need larger air-supply momentum.The adherent wind that arranges on side wall, as which is installed at side water wall fin position of opening, spray
Mouth is less to have slagging scorification blocking spout, and adherent wind, quoted from secondary air box, the pressure of bellows is relatively low, and rigidity is not enough, sprays into
Adherent wind in stove is under inner flue gas of the stove Involving velocity, it is impossible to play the effect of protection side water wall, and the side wall having is adherent
Wind is set to smooth-bore tip, and adherent wind is direct jet after entering in stove, and jet cannot cover whole side wall, it is impossible to improve week
Enclose the atmosphere of adhesion wall of water-cooling wall, it is impossible to reach transformation purpose.
In order to solve the problems, such as Opposite Firing Boiler both walls water wall high temperature corrosion, improve side water wall adherent
Atmosphere, on the basis of analysis at present adherent wind pluses and minuses, proposes a kind of New-type boiler water-cooling wall antisepsis protector.
Utility model content
The purpose of this utility model is to provide a kind of boiler water wall antisepsis protector, and the device can increase boiler side
The adherent region oxygen content of wall water-cooling wall, improves water-cooling wall working environment, thoroughly solves boiler side wall water wall high temperature corrosion and asks
Topic.
For achieving the above object, the technical scheme adopted by this utility model is：
A kind of boiler water wall antisepsis protector, installs additional on the water-cooling wall of wall and right-side wall on the left of the boiler for by heat
First air causes left side wall and the guiding device at right-side wall zone line water-cooling wall, is provided with and water conservancy diversion in water-cooling wall back-fire side
The bellows that device is connected, bellows are also associated with heat primary air main pipe.
The height of the guiding device is the distance from boiler orlop burner to burnout degree region.
The bellows are connected with heat primary air main pipe by connecting pipe, and are disposed with motorized adjustment on connecting pipe
Door；Bellows are using step-by-step arrangement or integral arrangement.
Filter screen is additionally provided with the connecting pipe.
The guiding device is some deflectors or some blast caps；Deflector includes first baffle and vertical with first baffle
The second baffle of setting.
When guiding device adopts deflector, the deflector on left side wall and right-side wall liquidates arrangement；Deflector is using whole
Body arrangement or step-by-step arrangement；The material of deflector is rustless steel；Deflector is fixed using welding manner with water-cooling wall；Deflector with
After boiler front wall and boiler, the distance of wall is the 1/6 of furnace depth.
When guiding device is deflector, the water-cooling wall fin relative with second baffle is cut off, the wind in bellows is made
Enter burner hearth.
The height of the water-cooling wall fin for cutting off is highly identical with deflector；The water-cooling wall circumference of water-cooling wall fin is cut off
Carry out spray treatment or install wearing-resistant tile additional；Bellows are highly identical with deflector；The width of first baffle is 100mm.
When guiding device is some blast caps, blast cap circumference air outlet stretches into depth in burner hearth within 50mm.
Some blast cap spaced sets；The smallest circumference half that the distance between adjacent blast cap is covered for the air-flow that blast cap sprays
The twice in footpath；Blast cap is to be welded and fixed with water-cooling wall, and lays castable in blast cap and water-cooling wall junction；Blast cap is using stream
Change bed blast cap.
Compared with prior art, the beneficial effects of the utility model are：This utility model is by being provided on side wall
Heat primary air is caused the guiding device at left side wall and right-side wall zone line water-cooling wall, heat primary air is caused in the middle of side wall
At the water-cooling wall of region, to increase oxygen content herein, improve side wall zone line water-cooling wall atmosphere of adhesion wall, prevent high temperature corrosion
Occur；Wind regime takes from heat primary air main pipe, and the pathogenic wind-warm and hot secondary air temperature on the one hand being entered burner hearth by side wall bellows is close to, and is kept away
Exempt to affect boiler efficiency, another aspect heat primary air main-piping pressure is 8kPa～10kPa or so, and blast is higher, can make entrance stove
The air-supply momentum of thorax be enough to overcome inner flue gas of the stove Involving velocity, to reach the purpose for improving side water wall atmosphere of adhesion wall；This reality
Thoroughly improve side water wall atmosphere of adhesion wall with new by installing new adherent wind apparatus at side wall additional, increase side wall water-cooled
Oxygen amount at wall, solves the problems, such as boiler side wall water wall high temperature corrosion.This utility model apparatus structure is simple, and effect is substantially, convenient
The boiler for having put into operation carries out corresponding technological transformation.
Further, the high temperature corrosion of boiler side wall typically occurs in the zone line of side water wall, is that guarantee improves side
Easily there is the atmosphere of adhesion wall in high temperature corrosion region at wall, so wall after deflector and boiler front wall and boiler in this utility model
Distance is the 1/6 of furnace depth.
Further, deflector stretch into the height of burner hearth should be apart from side water wall certain position, apart from excessive, blast can
Can be on the weak side, it is impossible to be effectively improved side water wall atmosphere of adhesion wall, and easily disturbed by furnace flame；Apart from less than normal, may make
Into the abrasion of adherent water-cooling wall, so the width of the first baffle of deflector gos deep into for 100mm, i.e. deflector in this utility model
The depth of burner hearth is 100mm or so.
Further, electric adjustable section door is arranged on connecting pipe, can adjust the air-supply momentum being blown in burner hearth, can root
Electric adjustable section door aperture is adjusted according to CO contents at load, side water wall atmosphere of adhesion wall or afterbody CEMS, it is ensured that lead through deflector
The heat primary air of stream can cover boiler side wall zone line.
Further, filter screen is additionally provided with connecting pipe, it is to avoid First air carries flying for air preheater heat accumulating element
Ash is entered in burner hearth, it is to avoid cause abrasion, the coking of air deflector side water wall.
Description of the drawings
Partial schematic diagrams of the Fig. 1 for 1 boiler water wall antisepsis protector of this utility model example；
Schematic top plan views of the Fig. 2 for 1 boiler water wall antisepsis protector of this utility model example；
Partial schematic diagrams of the Fig. 3 for 2 boiler water wall antisepsis protector of this utility model example；
Wherein, 1 is water-cooling wall external thermal insulation, and 2 is water-cooling wall, and 3 is water-cooling wall fin, and 4 is deflector, and 4-1 is first baffle,
4-2 is second baffle, and 5 is bellows, and 6 is electric adjustable section door, and 7 is heat primary air main pipe, and 8 is left side wall, and 9 is right-side wall, and 10 are
Front wall, 11 is rear wall, and 12 is burner, and 13 is blast cap, and 14 is castable.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in detail.
Referring to Fig. 1 and Fig. 2, install additional on the water-cooling wall 2 of wall 8 and right-side wall 9 on the left of the boiler in this utility model for will
Heat primary air causes the guiding device at the 9 zone line water-cooling wall 2 of wall 8 and right-side wall of left side, is provided with 2 back-fire side of water-cooling wall
The bellows 5 being connected with guiding device, bellows 5 are using step-by-step arrangement or integral arrangement.Bellows 5 pass through connecting pipe with heat once
Wind main pipe 7 (heat primary air main-piping pressure is 8kPa～10kPa or so) is connected, wind of 7 apoplexy of heat primary air main pipe as bellows 5
Be disposed with electric adjustable section door 6 on source, and connecting pipe, can be according to load, side water wall atmosphere of adhesion wall or afterbody CEMS at
CO contents adjust 6 aperture of electric adjustable section door, it is ensured that can cover boiler side wall mesozone through the heat primary air of 4 water conservancy diversion of deflector
Domain；Filter screen is additionally provided with connecting pipe, it is to avoid First air carries the flying dust of air preheater heat accumulating element and enters in burner hearth, keeps away
Exempt from abrasion, the coking for causing air deflector side water wall.Wherein, the height of guiding device is from boiler orlop burner 12
Distance to burnout degree region.
The guiding device is deflector 4 or some blast caps 13；Deflector 4 includes first baffle 4-1 and and first baffle
The vertically disposed second baffle 4-2 of 4-1.The width of first baffle 4-1 is 100mm or so, i.e., deflector gos deep into the depth of burner hearth
For 100mm or so.When guiding device adopts deflector 4, the water-cooling wall fin 3 relative with second baffle 4-2 is cut off, is made
Wind in bellows 5 enters burner hearth, and the height of the water-cooling wall fin 3 for cutting off is highly identical with deflector 4, and has cut off water-cooled
The water-cooling wall 2 of wall fin 3 is circumferential to carry out spray treatment or installs wearing-resistant tile additional；5 size of bellows cuts off water-cooling wall fin 3 covering
Space afterwards is advisable, and bellows 5 are highly identical with deflector 4.
Deflector 4 on left side wall 8 and right-side wall 9 liquidates arrangement；Deflector 4 is using integral arrangement or step-by-step arrangement；Lead
The material of stream plate 4 is rustless steel；Deflector 4 is fixed using welding manner with water-cooling wall 2；Deflector 4 and boiler front wall 10 and pot
The distance of furnace rear wall 11 for furnace depth 1/6.Deflector 4 stretch into burner hearth height should apart from side water wall certain position,
Apart from excessive, blast may be on the weak side, it is impossible to is effectively improved side water wall atmosphere of adhesion wall, and is easily disturbed by furnace flame；Away from
From less than normal, the abrasion of adherent water-cooling wall is likely to result in.
2 adherent region of side water wall is guided to through deflector 4 by side wall air-supply in this utility model, to improve side wall
2 adherent place's reducing atmosphere of water-cooling wall.
Referring to Fig. 3, when guiding device is some blast caps 13, blast cap 13 is circumferential uniformly to offer some air outlets；By bellows 5
By sending into hot blast at blast cap 13 to the left side wall 8 and right-side wall 9, to improve the adherent reducing atmosphere of side water wall.Blast cap 13
Circumferential air outlet stretches into depth in burner hearth within 50mm, if distance is too big, improves side wall zone line water-cooling wall adherent
The effect of atmosphere can weaken.
13 spaced set of some blast caps；Single blast cap 13 can cover the circumferential area with blast cap 13 as the center of circle, adjacent wind
The twice of the smallest circumference radius of the covering of the air-flow that the distance between cap 13 is sprayed for blast cap 13, so can ensure that adjacent wind
Between cap, the atmosphere in region can access improvement；Blast cap 13 is to be welded and fixed with water-cooling wall 2, and in blast cap 13 and water-cooling wall
Lay castable 14 in 2 junctions；Blast cap 13 is using the more ripe fluidized bed hood of business application.
Bellows 5 export the pipeline being provided with and blast cap 13 between for gas circulation, the openings of sizes of pipeline and blast cap 13
Match.
When guiding device adopts blast cap 13, blast cap 13 is fixed in burner hearth by foundry goods, as Fig. 3 is schematic diagram, in Fig. 3
It is that water-cooling wall fin 3 is cut off, but water-cooling wall 2 can be curved process herein in real process, stays
Go out blast cap arrangement space.
Boiler water-cooling wall high-temperature corrosion mostly occurs in side water wall zone line, is highly located at bottom burner to combustion
Most weathercock high position.For improving side water wall atmosphere of adhesion wall, side water wall corrosion thinning is prevented, there is provided two kinds of water-cooling walls are prevented
Rotten protection device example.
Embodiment 1
Referring to Fig. 1 and Fig. 2, wall 8 and right-side wall 9 are on water-cooling wall 2 at front wall 10, rear wall 11 about 1/6 on the left of the boiler
Install some deflectors 4 additional, homonymy deflector 4 is the arrangement that liquidates, and the height of deflector 4 is from orlop burner 12 to burnout degree
The distance in region.4 sectional of deflector arrangement, also can integral arrangement.By water-cooling wall fin corresponding with the second baffle of deflector 4
Piece 3 is cut off, and cut off the height of fin should be highly consistent with deflector 4.Independent little bellows 5 are set outside water-cooling wall 2,
5 size of bellows is advisable with covering the height for cutting off fin.Deflector 4, both bellows 5 are highly consistent, 5 sectional cloth of bellows
Put, also can integral arrangement.5 wind regime of bellows takes from heat primary air main pipe 7, arranges on bellows 5 and 7 connecting pipe of heat primary air main pipe
There is electric adjustable section door 6, electric adjustable section door 6 can be adjusted according to CO contents at load, side water wall atmosphere of adhesion wall or afterbody CEMS
Aperture, it is ensured that boiler side wall zone line can be covered through the heat primary air of 4 water conservancy diversion of deflector.For preventing from cutting off water-cooling wall fin
Place's water-cooling wall weares and teares, and carries out spray treatment or install the modes such as wearing-resistant tile additional being protected at water-cooling wall 2.
Embodiment 2
Referring to Fig. 3, some blast caps 13 of arrangement at wall 8 and right-side wall 9 on the left of the boiler, 13 absolute altitude of blast cap are located at orlop combustion
Burner 12 is to burnout degree region.The circumferential air outlet of blast cap 13 stretches into the distance of burner hearth within 50mm.Single blast cap 13 can be covered
Circumferential area with blast cap 13 as the center of circle, adjacent blast cap 13 are impartial with 13 spacing of blast cap, and spacing is approximately equal to blast cap 13 and covers minimum
The twice of radius of a circle.Blast cap 13 is used in bellows 5 at blast cap 13 using the fluidized bed hood that business application is more ripe
The air channel that wind is passed through in blast cap 13 is matched with blast cap 13.Wind regime takes from heat primary air main pipe 7, blast cap 13 and heat primary air main pipe
7 are connected, and blast cap 13 and arrangement electric adjustable section door 6 on the connecting pipe of heat primary air main pipe 7, can be according to load, side wall water
At cold wall atmosphere of adhesion wall or afterbody CEMS, CO contents adjust 6 aperture of electric adjustable section door, it is ensured that can through the heat primary air of blast cap 13
Cover boiler side wall zone line.
Claims (10)
1. a kind of boiler water wall antisepsis protector, it is characterised in that the water-cooled of wall (8) and right-side wall (9) on the left of the boiler
Install additional on wall (2) and fill for heat primary air to be caused the water conservancy diversion at left side wall (8) and right-side wall (9) zone line water-cooling wall (2) place
Putting, the bellows (5) being connected with guiding device being provided with water-cooling wall (2) back-fire side, it is female that bellows (5) are also associated with heat primary air
Pipe (7).
2. a kind of boiler water wall antisepsis protector according to claim 1, it is characterised in that the guiding device
Highly it is the distance from boiler orlop burner (12) to burnout degree region.
3. a kind of boiler water wall antisepsis protector according to claim 1, it is characterised in that described bellows (5) lead to
Cross connecting pipe to be connected with heat primary air main pipe (7), and on connecting pipe, be disposed with electric adjustable section door (6)；Bellows (5) are adopted
Step-by-step arrangement or integral arrangement.
4. a kind of boiler water wall antisepsis protector according to claim 3, it is characterised in that on the connecting pipe
It is additionally provided with filter screen.
5. a kind of boiler water wall antisepsis protector according to claim 1, it is characterised in that the guiding device is
Some deflector (4) or some blast caps (13)；Deflector (4) includes first baffle (4-1) and vertical with first baffle (4-1) sets
The second baffle (4-2) that puts.
6. a kind of boiler water wall antisepsis protector according to claim 5, it is characterised in that guiding device is using leading
During stream plate (4), the deflector (4) on left side wall (8) and right-side wall (9) liquidates arrangement；Deflector (4) using integral arrangement or
Step-by-step arrangement；The material of deflector (4) is rustless steel；Deflector (4) is fixed using welding manner with water-cooling wall (2)；Deflector
(4) with boiler front wall (10) and boiler after the distance of wall (11) be the 1/6 of furnace depth.
7. a kind of boiler water wall antisepsis protector according to claim 5, it is characterised in that guiding device is water conservancy diversion
During plate (4), the water-cooling wall fin (3) relative with second baffle (4-2) is cut off, make the wind in bellows (5) enter burner hearth.
8. a kind of boiler water wall antisepsis protector according to claim 7, it is characterised in that the water-cooling wall fin for cutting off
The height of piece (3) is highly identical with deflector (4)；The water-cooling wall (2) for having cut off water-cooling wall fin (3) is circumferentially carried out at spraying
Reason installs wearing-resistant tile additional；Bellows (5) are highly identical with deflector (4)；The width of first baffle is 100mm.
9. a kind of boiler water wall antisepsis protector according to claim 1, it is characterised in that guiding device is some
During blast cap (13), blast cap (13) circumference air outlet stretches into depth in burner hearth within 50mm.
10. a kind of boiler water wall antisepsis protector according to claim 1 or 9, it is characterised in that some blast caps
(13) spaced set；The distance between adjacent blast cap (13) are the smallest circumference radius that the air-flow that blast cap (13) sprays is covered
Twice；Blast cap (13) is to be welded and fixed with water-cooling wall (2), and lays castable in blast cap (13) and water-cooling wall (2) junction
(14)；Blast cap (13) adopts fluidized bed hood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621021646.9U CN206018598U (en) | 2016-08-30 | 2016-08-30 | A kind of boiler water wall antisepsis protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621021646.9U CN206018598U (en) | 2016-08-30 | 2016-08-30 | A kind of boiler water wall antisepsis protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206018598U true CN206018598U (en) | 2017-03-15 |
Family
ID=58257886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621021646.9U Active CN206018598U (en) | 2016-08-30 | 2016-08-30 | A kind of boiler water wall antisepsis protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206018598U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196021A (en) * | 2016-08-30 | 2016-12-07 | 西安热工研究院有限公司 | A kind of boiler water wall antisepsis protector |
| CN109297044A (en) * | 2018-11-14 | 2019-02-01 | 仲恺农业工程学院 | A kind of boiler water wall heat exchanger of adjustable mass dryness fraction |
-
2016
- 2016-08-30 CN CN201621021646.9U patent/CN206018598U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196021A (en) * | 2016-08-30 | 2016-12-07 | 西安热工研究院有限公司 | A kind of boiler water wall antisepsis protector |
| CN109297044A (en) * | 2018-11-14 | 2019-02-01 | 仲恺农业工程学院 | A kind of boiler water wall heat exchanger of adjustable mass dryness fraction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106678783A (en) | Combustion optimization system and adjustment method for preventing water wall high-temperature corrosion | |
| CN103438437B (en) | A kind of adherent wind system of Opposite Firing Boiler | |
| CN203980331U (en) | Prevent the anti-scorch wind system of four jiaos of serious cokings of " W " stove | |
| CN206018598U (en) | A kind of boiler water wall antisepsis protector | |
| CN203454111U (en) | Novel near-wall air device for front and rear wall opposed firing boiler | |
| CN103912893B (en) | The boiler water wall protective device of anti-coking high temperature corrosion resistance | |
| CN106989411A (en) | A kind of boiler water wall air film protection device | |
| CN206488270U (en) | It is a kind of to prevent the combustion optimizing system of water wall high temperature corrosion | |
| CN106196021A (en) | A kind of boiler water wall antisepsis protector | |
| CN106482093B (en) | Opposed firing boiler and flue gas recirculation combustion system using same | |
| CN103292342B (en) | A kind of bituminous coal fired boiler that uses mixes the method for burning Xinjiang Guang Hui brown coal | |
| CN205014342U (en) | Water -cooling wall high temperature corrosion device is prevented to adherence wind with independent induced duct | |
| CN207179641U (en) | A kind of boiler of the adherent wind of side wall | |
| CN207471522U (en) | A kind of industrial coal powder boiler that adherent wind nozzle is set | |
| CN108266723A (en) | A kind of adherent wind apparatus of pulverized-coal fired boiler water-cooling wall concave inward structure | |
| CN206637650U (en) | A kind of boiler water wall air film protection device | |
| CN209054550U (en) | Flue gas recirculation system | |
| CN207035089U (en) | A kind of side wall burnout degree structure with adjustable guide vane | |
| WO2022247039A1 (en) | Air distribution system for multistage regulation and control of air and fume | |
| CN206274163U (en) | Coal burner | |
| CN207006125U (en) | A kind of adherent wind bellows of accumulatingdust | |
| CN108253446A (en) | A kind of boiler furnace structure of flow-guiding type high temperature corrosion resistance anti-coking | |
| CN109631022A (en) | A kind of coal powder burner with flue gas recirculation for industrial coal powder boiler | |
| CN104595891B (en) | Opposed firing structure of boiler | |
| CN212178851U (en) | Adherence wind bellows that flute cast was automatic to be swept |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |