CN207080990U - A kind of adherent wind apparatus of boiler and station boiler system - Google Patents
A kind of adherent wind apparatus of boiler and station boiler system Download PDFInfo
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- CN207080990U CN207080990U CN201721033074.0U CN201721033074U CN207080990U CN 207080990 U CN207080990 U CN 207080990U CN 201721033074 U CN201721033074 U CN 201721033074U CN 207080990 U CN207080990 U CN 207080990U
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- wind
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- 230000001464 adherent effect Effects 0.000 title claims abstract description 157
- 238000001816 cooling Methods 0.000 claims abstract description 79
- 210000004894 snout Anatomy 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 230000001939 inductive effect Effects 0.000 claims description 11
- 241000143973 Libytheinae Species 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 19
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000010304 firing Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Abstract
The utility model discloses a kind of adherent wind apparatus of boiler and station boiler system.The adherent wind apparatus of boiler includes boiler, adherent wind bellows and boiler air duct, and the water-cooling wall of boiler includes water cooling tube, and water-cooling wall is provided with adherent wind snout, and water cooling tube is bend pipe in opening position corresponding to adherent wind snout, and bend pipe is directed away from the direction protrusion of boiler；Outside water-cooling wall, adherent wind snout and bend pipe are respectively positioned in adherent wind bellows adherent wind bellows button；Boiler air duct connects with adherent wind bellows.The adherent wind apparatus of the boiler opens up adherent wind snout on water-cooling wall, water cooling tube correspondence position avoids to form adherent wind snout by the form of bend pipe, wind in adherent wind bellows is entered in burner hearth by adherent wind snout, is formed wind film in the inner surface of water-cooling wall, is avoided water-wall corrosion；And the wind speed and air quantity of the adherent wind of the design requirement are relatively low therefore smaller to the flow of combustion zone；Pipeline is not provided with adherent wind snout, avoids high temperature failure, improves service life.
Description
Technical field
It the utility model is related to thermal power generating technology field, more particularly to a kind of adherent wind apparatus of boiler and station boiler system
System.
Background technology
Thermal power generation is one of the main generation mode in China, three big host devices of the station boiler as firepower power station,
Along with the development of China's Thermal Power Generation Industry.
At present, the combustion system in large-scale pulverized coal firing boiler is mainly fired using corner tangential firing and opposed firing
Burn.Wherein, Opposite Firing Boiler has the advantage in terms of heating surface arrangement on the boiler of Large Copacity and high parameter, because
It is widely used in this fired power generating unit at home.In order to realize the environmental protection of boiler, economy, Effec-tive Function, it usually needs using empty
The mode of gas fractional combustion reduces the discharge capacity of nitrogen oxides in Opposite Firing Boiler.Researched of Air Staging Combustion Burning Pulverized Coal mode is
Refer to and the air classification needed for boiler combustion is sent into burner hearth, primary zone, reduction are followed successively by using the burner hearth of which from top to bottom
Area, burning-out zone three parts.The 70-90% of fuel combustion institute required airflow is fed in primary zone, oxygen debt environment is built, is fired away from top layer
The burning-out zone of burner top certain distance, the remaining air needed for burner hearth fuel is fed by fire air nozzle, makes uncombusted combustion
Expect completely burned under the region excess oxygen.
Although can effectively reduce the discharge capacity of nitrogen oxides using air staged combustion technology, a series of be difficult to also is brought
The problem of control.When sulfur content is higher in fire coal, under reducing atmosphere, the main heated portion of boiler, i.e. water-cooling wall is near
Wall area can produce substantial amounts of H2S and CO etc. has the gas of corrosiveness to water-cooling wall, so as to cause water-cooling wall serious sulphur occur
Compound type high temperature corrosion, causes large area to change pipe, has had a strong impact on the safe operation of boiler.In addition, Deoxidation Atmosphere in Furnace is also
The Fe that fusing point is higher in ash can be made2O3It is reduced into the FeO of low melting point so that ash fusion point is greatly lowered, and causes in region water-cooling wall
Slagging.
In the prior art, mainly passed through by installing adherent wind snout additional close to the position of both walls on burner hearth front-back wall
Spout projects the adherent general mood stream of high speed, and air-flow covers the water cooling wall region near adherent wind snout, to eliminate going back for the region
Originality atmosphere.But the intensity of the air-flow of adherent wind is difficult to control in the prior art, if gas flow optimized is bad so that air-flow passes through
During combustion zone, the flow field of whole combustion zone can be influenceed, causes flame disorderly, causes burning to deteriorate；Adherent wind rigidity is too strong,
It can also cause wind speed too high, adherent wind total blast volume increase, cause primary zone air quantity to reduce, influence the stability of combustion zone, hold
Easily cause slagging, the serious consequence such as flame kernel moves up.
Utility model content
First purpose of the present utility model is to propose a kind of adherent wind apparatus of boiler, can avoid water-wall corrosion, together
When adherent wind current rate it is moderate, the stability of adherent wind effect combustion zone is avoided, so as to prevent water-cooling wall slagging or fire
Flame center moves up.
To use following technical scheme up to this purpose, the utility model：
A kind of adherent wind apparatus of boiler, including：
Boiler, the water-cooling wall of the boiler are provided with water cooling tube outside, and the water-cooling wall is provided with adherent wind snout, the water
Cold pipe is bend pipe in opening position corresponding to the adherent wind snout, and the bend pipe is directed away from the direction protrusion of the boiler；
Adherent wind bellows, outside the water-cooling wall, the adherent wind snout and the bend pipe are respectively positioned on described adherent button
In wind bellows；
Boiler air duct, connected with the adherent wind bellows.
Wherein, the adherent wind snout is to set elongate holes, the adherent wind spray along the length direction of the water cooling tube
The width of the arragement direction of water cooling tube described in opening's edge is equal to the diameter of the water cooling tube.
Wherein, multiple adherent wind snouts are provided with corresponding to the adherent wind bellows on water-cooling wall.
Wherein, arragement direction distribution of multiple adherent wind snouts along the water cooling tube.
Wherein, multiple adherent wind bellows are provided with outside the water-cooling wall, the boiler air duct is provided with adherent wind and drawn
Wind pipeline, multiple adherent wind bellows are connected by adherent wind pipeline with the adherent wind air inducing pipeline.
Wherein, two water-cooling walls that the boiler is oppositely arranged, the center of relatively described boiler, are symmetrical arranged multiple adherent
Wind bellows.
Wherein, the air intake of the adherent wind air inducing pipeline is provided with electric adjustable air doors, and the electric adjustable air doors are used
In the regulation adherent wind total blast volume of boiler.
Wherein, the adherent wind air inducing pipeline is provided with air quantity survey in side of the electric adjustable air doors away from air intake
Measure device.
Wherein, the adherent wind pipeline is provided with manual damper, and the manual damper is used to adjust the patch
Air quantity in wall wind bellows.
Second purpose of the present utility model is to propose a kind of station boiler system, can avoid water-wall corrosion, simultaneously
The current rate of adherent wind is moderate, avoids the stability of adherent wind effect combustion zone, so as to prevent water-cooling wall slagging or flame
Center moves up.
To use following technical scheme up to this purpose, the utility model：
A kind of station boiler system, including the adherent wind apparatus of above-mentioned boiler.
Beneficial effect：The utility model provides a kind of adherent wind apparatus of boiler and station boiler system.The boiler is adherent
Wind apparatus opens up adherent wind snout on water-cooling wall, and water cooling tube correspondence position avoids to form adherent wind spray by the form of bend pipe
Mouthful, the wind in adherent wind bellows is entered by adherent wind snout in the burner hearth of boiler, is formed wind film in the inner surface of water-cooling wall, is kept away
Exempt from water-wall corrosion；And by way of bend pipe avoidance, the wind speed and air quantity of adherent wind are relatively low, to the flow of combustion zone
It is small；Relative to prior art, pipeline or adherent wind nozzle are not provided with adherent wind snout, high temperature can be avoided to calculate bad pipeline or patch
Wall wind nozzle, improve the service life of the adherent wind apparatus of boiler.
Brief description of the drawings
Fig. 1 is the structural representation for the adherent wind apparatus of boiler that the utility model embodiment provides；
Fig. 2 is the structural representation of the water-cooling wall that the utility model embodiment provides and adherent wind bellows.
1st, boiler；11st, water-cooling wall；111st, water cooling tube；112nd, adherent wind snout；113rd, bend pipe；
2nd, adherent wind bellows；21st, adherent wind pipeline；211st, manual damper；
3rd, boiler air duct；31st, adherent wind air inducing pipeline；311st, electric adjustable air doors；312nd, apparatus for measuring air quantity.
Embodiment
It is clearer for the technical scheme and the technique effect that reaches that make technical problem that the utility model solves, use,
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.
As shown in figure 1, a kind of adherent wind apparatus of boiler is present embodiments provided, including boiler 1, adherent wind bellows 2 and pot
Stove air channel 3, adherent wind bellows 2 are connected with the burner hearth and boiler air duct 3 of boiler 1 respectively, and the wind in boiler air duct 3 passes through adherent wind
Bellows 2 enter in burner hearth, and the inner surface of the water-cooling wall 11 in burner hearth forms a layer of air film, eliminate going back near water-cooling wall 11
Originality atmosphere, so as to prevent water-cooling wall 11 by H2The gas attacks such as S and CO.
Water-cooling wall 11 is the main heated portion of boiler, and it can be made up of more water cooling tubes 111, can in water cooling tube 111
To be passed through the water of flowing, the main function of water-cooling wall 11 is the radiations heat energy for absorbing burner hearth high temperature flame or flue gas, in water cooling
Steam or hot water are produced in pipe 111, and reduces the temperature of boiler wall, protects boiler wall.
Water-cooling wall 11 can be that water cooling tube 111 is laid in be built on furnace wall using lightweight refracrory and insulation material,
Can also be that the monoblock tube panel formed together is directly welded to each other using extended surface tube, as long as absorption radiations heat energy can be reached,
And reduce the temperature of furnace wall.
It is the inner surface one layer of air diaphragm of formation in water-cooling wall 11, water-cooling wall 11 is provided with adherent in the present embodiment
Wind snout 112, water cooling tube 111 are to be directed away from the bend pipe that the direction of boiler 1 is protruded in position corresponding to adherent wind snout 112
113, the specification of bend pipe 113 can be identical with the specification of water cooling tube 111；The adherent button of wind bellows 2 is outside water-cooling wall 11, adherent wind
Spout 112 and bend pipe 113 are respectively positioned in adherent wind bellows 2；Adherent wind bellows 2 connect with boiler air duct 3, and boiler air duct 3 is patch
Wall wind bellows 2 provide wind regime, and wind is entered in burner hearth by adherent wind snout 112, and is moved upwards along furnace wall, in water-cooling wall 11
Inner surface forms a layer of air diaphragm, so as to avoid water-cooling wall 11 from corroding.Bend pipe 113 protrudes to the direction of Keep away from boiler 1, and one
Aspect, adherent wind snout 112 can be avoided so that be passed through adherent wind in the adherent internal furnace of wind bellows 2, limit air-flow flow and
Flow velocity, the big gas ratio for upsetting a combustion zone in burner hearth of intensity of air-flow is avoided, so that it is guaranteed that the stability of combustion zone, keeps away
Exempt from flame disorder, hold the problems such as slagging, flame kernel move up so as to prevent.On the other hand, bend pipe 113 is located at outside burner hearth,
And adherent wind does not need other nozzles or pipeline etc. to stretch into the adherent wind of transmission in burner hearth, so as to avoid the hot environment in burner hearth
Influence to bend pipe 113, the service life of the adherent wind apparatus of prolonged boiler.
Multiple adherent wind bellows 2 can be provided with outside water-cooling wall 11 in the present embodiment, between multiple adherent wind bellows 2 can wait
It is multiple with respect to the center symmetric setting of boiler 1 away from two water-cooling walls 11 being uniformly distributed with outside water-cooling wall 11, boiler 1 is oppositely arranged
Adherent wind bellows 2 so that the inner surface of water-cooling wall 11 can have adherent wind with uniform fold, so as to protect water-cooling wall 11 to avoid corruption
Erosion.Boiler air duct 3 is provided with adherent wind air inducing pipeline 31, and multiple adherent wind bellows 2 are drawn by adherent wind pipeline 21 with adherent wind
Wind pipeline 31 connects.
It is for convenience the multiple adherent offer of wind bellows 2 Secondary Airs, in the present embodiment, boiler air duct 3 can be two, two
Boiler air duct 3 is arranged at relative both sides of boiler 1 and vertical with water-cooling wall, passes through adherent wind air inducing between two boiler air ducts 3
Pipeline 31 connects, and provides Secondary Air by multiple adherent wind pipelines 21 for multiple adherent wind bellows 2.
For the air quantity for the adherent wind being adjusted into burner hearth, the air intake of adherent wind air inducing pipeline 31 can be provided with electronic
Damper 311, electric adjustable air doors 311 are used to adjust the adherent wind total blast volume of boiler 1, realized to the adherent wind in boiler 1
Macro adjustments and controls.The total blast volume of adherent wind is adjusted for convenience of staff, secondary air pipeline 31 is remote in electric adjustable air doors 311
The side of air intake is also provided with apparatus for measuring air quantity 312, and staff can be adjusted by observing apparatus for measuring air quantity 312
Whole electric adjustable air doors 311, so that the total blast volume of adherent wind reaches predetermined value.
Further accurately to control the air quantity of the adherent wind of each several part of water-cooling wall 11, so as to according to each several part area of water-cooling wall 11
H in domain2The concentration of the harmful substances such as S and CO adjusts the air quantity of adherent wind, adherent wind pipeline 21 corresponding to each adherent wind bellows 2
On be also provided with manual damper 211, manual damper 211 is used to accurately adjust the air quantity in adherent wind bellows 2.
As shown in Fig. 2 for make by adherent wind snout 112 adherent wind enter burner hearth in after along water-cooling wall 11 inner surface
Flowing, does not enter the combustion zone in burner hearth, and adherent wind snout 112 can be to set strip along the length direction of water cooling tube 111
Shape hole, the width of arragement direction of the adherent wind snout 112 along water cooling tube 111 are equal to the diameter of water cooling tube 111 so that adherent wind by
The limitation flow of adherent wind snout 112 is smaller, avoids adherent wind from entering combustion zone, and the shape of adherent wind snout 112 can also
Guiding air-flow moves upwards, covers the inner surface of water-cooling wall 11.
To make adherent wind uniform fold in the inner surface of water-cooling wall 11, comprehensive protection water-cooling wall 11, the adherent correspondence of wind bellows 2
Water-cooling wall 11 on can be provided with multiple adherent wind snouts 112, distribution side of multiple adherent wind snouts 112 along water cooling tube 111
To arrangement, so as to improve adherent wind into the area of rear covering water-cooling wall 11 in burner hearth.
Certainly, the size and number of adherent wind snout 112 can also determine according to actual performance design requirement.
The present embodiment additionally provides a kind of station boiler system, including the adherent wind apparatus of above-mentioned boiler, can avoid water
Cold wall is corroded, while the current rate of adherent wind is moderate, the stability of adherent wind effect combustion zone is avoided, so as to prevent water cooling
Wall slagging or flame kernel move up.
Above content is only preferred embodiment of the present utility model, for one of ordinary skill in the art, according to this reality
With new thought, there will be changes, this specification content should not be construed as in specific embodiments and applications
To limitation of the present utility model.
Claims (10)
- A kind of 1. adherent wind apparatus of boiler, it is characterised in that including：Boiler (1), the water-cooling wall (11) of the boiler (1) include water cooling tube (111), and the water-cooling wall (11) is provided with adherent wind Spout (112), the water cooling tube (111) is bend pipe (113) in opening position corresponding to the adherent wind snout (112), described curved Pipe (113) is directed away from the direction protrusion of the boiler (1)；Adherent wind bellows (2), located at the water-cooling wall (11) outside, the adherent wind snout (112) and the bend pipe (113) are equal for button In the adherent wind bellows (2)；Boiler air duct (3), connected with the adherent wind bellows (2).
- 2. the adherent wind apparatus of boiler as claimed in claim 1, it is characterised in that the adherent wind snout (112) is along described The length direction of water cooling tube (111) sets elongate holes, arrangement of the adherent wind snout (112) along the water cooling tube (111) The width in direction is equal to the diameter of the water cooling tube (111).
- 3. the adherent wind apparatus of boiler as claimed in claim 2, it is characterised in that water cooling corresponding to the adherent wind bellows (2) Multiple adherent wind snouts (112) are provided with wall (11).
- 4. the adherent wind apparatus of boiler as claimed in claim 3, it is characterised in that multiple adherent wind snouts (112) are along institute State the arragement direction distribution of water cooling tube (111).
- 5. the adherent wind apparatus of boiler as any one of claim 1-4, it is characterised in that water-cooling wall (11) peripheral hardware Multiple adherent wind bellows (2) are equipped with, the boiler air duct (3) is provided with adherent wind air inducing pipeline (31), multiple patches Wall wind bellows (2) are connected by adherent wind pipeline (21) with the adherent wind air inducing pipeline (31).
- 6. the adherent wind apparatus of boiler as claimed in claim 5, it is characterised in that two water that the boiler (1) is oppositely arranged Cold wall (11), the center of relatively described boiler (1), it is symmetrical arranged multiple adherent wind bellows (2).
- 7. the adherent wind apparatus of boiler as claimed in claim 5, it is characterised in that the air intake of the adherent wind air inducing pipeline (31) End is provided with electric adjustable air doors (311), and the electric adjustable air doors (311) are used to adjust the total wind of the boiler (1) adherent wind Amount.
- 8. the adherent wind apparatus of boiler as claimed in claim 7, it is characterised in that the adherent wind air inducing pipeline (31) is described Side of the electric adjustable air doors (311) away from air intake is provided with apparatus for measuring air quantity (312).
- 9. the adherent wind apparatus of boiler as claimed in claim 7, it is characterised in that the adherent wind pipeline (21) is provided with manually Damper (211), the manual damper (211) are used to adjust the air quantity in the adherent wind bellows (2).
- 10. a kind of station boiler system, it is characterised in that including the adherent wind of boiler as claimed in any one of claims 1-9 wherein Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721033074.0U CN207080990U (en) | 2017-08-17 | 2017-08-17 | A kind of adherent wind apparatus of boiler and station boiler system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721033074.0U CN207080990U (en) | 2017-08-17 | 2017-08-17 | A kind of adherent wind apparatus of boiler and station boiler system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207080990U true CN207080990U (en) | 2018-03-09 |
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ID=61419506
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721033074.0U Active CN207080990U (en) | 2017-08-17 | 2017-08-17 | A kind of adherent wind apparatus of boiler and station boiler system |
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| CN (1) | CN207080990U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355777A (en) * | 2017-08-17 | 2017-11-17 | 烟台龙源电力技术股份有限公司 | A kind of adherent wind apparatus of boiler and station boiler system |
-
2017
- 2017-08-17 CN CN201721033074.0U patent/CN207080990U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355777A (en) * | 2017-08-17 | 2017-11-17 | 烟台龙源电力技术股份有限公司 | A kind of adherent wind apparatus of boiler and station boiler system |
| CN107355777B (en) * | 2017-08-17 | 2023-08-29 | 烟台龙源电力技术股份有限公司 | Boiler adherence wind device and power station boiler system |
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