CN110081420A - It is a kind of for prevent boiler water wall wear and high temperature corrosion adherent wind apparatus - Google Patents
It is a kind of for prevent boiler water wall wear and high temperature corrosion adherent wind apparatus Download PDFInfo
- Publication number
- CN110081420A CN110081420A CN201910490847.5A CN201910490847A CN110081420A CN 110081420 A CN110081420 A CN 110081420A CN 201910490847 A CN201910490847 A CN 201910490847A CN 110081420 A CN110081420 A CN 110081420A
- Authority
- CN
- China
- Prior art keywords
- adherent wind
- high temperature
- temperature corrosion
- wall
- nozzle
- 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
- 230000001464 adherent effect Effects 0.000 title claims abstract description 102
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 230000007797 corrosion Effects 0.000 title claims abstract description 41
- 238000005260 corrosion Methods 0.000 title claims abstract description 41
- 238000001816 cooling Methods 0.000 claims abstract description 50
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- 238000005299 abrasion Methods 0.000 claims abstract description 12
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 5
- 239000010935 stainless steel Substances 0.000 claims abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 5
- 239000011159 matrix material Substances 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 210000002445 nipple Anatomy 0.000 claims description 4
- 239000000779 smoke Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 abstract description 7
- 239000001301 oxygen Substances 0.000 abstract description 7
- 238000005336 cracking Methods 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 2
- 239000003546 flue gas Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000009970 fire resistant effect Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 229910013868 M2SO4 Inorganic materials 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000007832 Na2SO4 Substances 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000003466 welding Methods 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
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
- F23C7/02—Disposition of air supply not passing through burner
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L1/00—Passages or apertures for delivering primary air for combustion
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The present invention relates to a kind of for preventing the adherent wind apparatus of boiler water wall abrasion and high temperature corrosion, including being distributed in the adherent wind nozzle on each face wall of water-cooling wall in matrix form, each adherent wind nozzle on a wall-cooling surface positioned at same level height passes through connection by metal hose to the same blowpipe respectively, blowpipe is equipped with stainless steel three-dimensional expansion joint, pass through reducer tee respectively positioned at each blowpipe of different height and is connected to air supply pipe, air supply pipe is connected to pressure fan, and air supply pipe is equipped with motorized adjustment baffle door.It is proposed by the present invention a kind of for preventing the adherent wind apparatus of boiler water wall abrasion and high temperature corrosion, several adherent wind nozzles are arranged by the water cooling wall region that high temperature corrosion easily occurs in pulverized-coal fired boiler, and by pressure fan be adherent wind nozzle blow, one layer of oxygen-enriched air film is formed in water cooling wall surface, the reducing atmosphere and coal powder density for reducing water-cooling wall wall surface, to prevent waterwall tube cracking and high temperature corrosion.
Description
Technical field
The present invention relates to generating plant pulverized coal boiler technical field, more particularly to one kind for prevent boiler water wall wear and
The adherent wind apparatus of high temperature corrosion.
Background technique
Part burning high sulfur coal, anthracitic thermal power plant and chemical plant pulverized-coal fired boiler, due to the sulphur content contained in sulphur coal
Higher, when burning, generates a large amount of CO, H2S、SO2、SO3Equal gases, not only break up the Fe of tube wall2O3Protective film, also attack metal
Tube surface causes water wall high temperature corrosion.When burning anthracite and meager coal, because ignition temperature is higher, burning is difficult, is easy
Metal wall surface is formed about reducing atmosphere, generates high temperature corrosion；Meanwhile uncombusted pulverized coal particle is to the mill of water-cooling wall wall surface
Damage is also more serious, destroys the Fe of water cooling wall surface2O3Protective film makes corrosive media in high-temperature flue gas directly and metal tube
Wall reacts, and exacerbates high temperature corrosion.
High temperature corrosion is a complicated physical and chemical process of furnace high-temperature flue gas and the interaction of metal wall surface, mainly
It is related with temperature, gas componant, the motion state of coal elemental composition and coal grain near water-cooling wall.It is big that two can be divided by its mechanism
Class: sulfide (H2S, SO2) corrosion of type burn into sulfate type.The case where sulfide type corrosion occurs mainly in flame impingement tube wall
Under, the FeS in fuel at this time2It is pasted on tube wall with soot particle or coal grain, (FeS is decomposed by high temperature2→ FeS+S), and S
Can be combined to FeS with water cooling wall metallic pipe, FeS again with O2Reaction generates Fe4O3, destroy water-cooling wall.Sulfate type corrosion
It is that the alkali metal oxide product released due to fuel combustion is tied on water-cooling wall, with the SO in flue gas3Chemical combination forms K2SO4
And Na2SO4, abbreviation sulfate (M2SO4), sulfate has caking property, can capture soot particle and be bonded to grieshoch and is covered on water-cooling wall
Surface, and lime-ash is formed at high temperature, the SO3 in high-temperature flue gas passes through ash bed, normal with metal pipe-wall inside ash bed
Aoxidize the protective layer Fe formed2O3Chemical reaction occurs and generates M3Fe(SO4)3, when metal pipe-wall forms new Fe2O3Protective layer
Afterwards, existing M in ash bed3Fe(SO4)3And M2SO4Continue the corrosion that above-mentioned reaction causes metal pipe-wall.
Studies have shown that H2The corrosivity of S is gradually increased at 300 DEG C or more, and temperature is every to increase 50 DEG C, and corrosivity increases by one
Times；About 350 DEG C of combustion zone water cooling wall temperature, fume side temperature is up to 420 DEG C；CO concentration in flue gas is bigger, high temperature corrosion
It is more serious, H2When S concentration is greater than 0.01%, will steel be generated with strong corrosiveness；And when wall surface oxygen amount is big
When 2%, basically will not produce high temperature corrosion.
Currently, the domestic major measure for preventing high temperature corrosion is using corrosion resistant high-alloy steel water screen tube, in water cooling
Wall pipe surface does spray treatment, stops CO, H2S、SO2、SO3Equal gases are contacted with metal pipe-wall, to prevent high temperature corrosion.But
It is that these belong to passive protection, corrosion resistant high-alloy steel water screen tube cost is high, and the spraying of water cooling wall surface is not only at high cost,
And spraying primary service life only has 1~2 year.It is that solution water wall high temperature corrosion is effective that adherent wind is added on water-cooling wall
A kind of method, adherent wind forms one layer of oxygen-enriched air film in water cooling wall surface, and the formation high temperature corrosion of broken ring must have
Reducing atmosphere, to prevent water wall high temperature corrosion；However, there is following problems for traditional adherent wind:
1. adherent wind nozzle burnt, easy scaling loss easy to hang, a period of time after boiler startup can be well protected water-cooling wall, one section
After time, adherent wind nozzle coking blocking or even scaling loss, to lose defencive function；
2. adherent wind derives from boiler First air or Secondary Air, if taking air quantity is excessive may will affect boiler combustion；And draw
First air, the Secondary Air wind pressure come is lower, and design value is not achieved in adherent wind wind speed, causes the effective area of coverage of adherent wind than design
It is small, part easily high temperature corrosion locality protection less than；
3. heat primary air or hot Secondary Air carry a large amount of furnace since adherent wind derives from heat primary air or hot Secondary Air
Ash easily causes the adherent bellows dust stratification on the outside of water-cooling wall to block adherent wind nozzle.
In view of the above-mentioned problems, in order to fundamentally solve water wall high temperature corrosion, make adherent wind in practical applications not by
Limitation.Therefore, it is necessary to invent, a kind of investment is small, structure is simple, overfiring-proof, do not influence burning, easy to maintain, nozzle is easily replaced
Adherent wind apparatus, thus preferably solve water wall high temperature corrosion, improve the safety of boiler for producing.
Summary of the invention
In order to overcome the above-mentioned deficiency of the prior art, the invention proposes one kind for preventing boiler water wall abrasion and height
The adherent wind apparatus of temperature corrosion solves air feed pressure transient existing for existing adherent wind apparatus, and the inconvenient pole again of nozzle exchange
The problem of easily burning.
The present invention is achieved by the following technical solutions:
It is a kind of to be distributed in water for preventing the adherent wind apparatus of boiler water wall abrasion and high temperature corrosion, including in matrix form
Adherent wind nozzle on each face wall of cold wall, positioned at each adherent wind nozzle of same level height point on a wall-cooling surface
Not Tong Guo connection by metal hose to the same blowpipe, the blowpipe is equipped with stainless steel three-dimensional expansion joint, is located at not
Level each blowpipe passes through reducer tee respectively and is connected to air supply pipe, and the air supply pipe is connected to air-supply
Machine, the air supply pipe are equipped with the motorized adjustment baffle door for adjusting wind speed.
Further, the adherent wind nozzle is mounted in the aperture on wall-cooling surface, the water screen tube of the tapping
For bend pipe, the aperture is sealed by seal box, and fire resistant infilling, institute are equipped in the cavity formed between the seal box and bend pipe
It states and passes through flange between adherent wind nozzle and seal box, is bolted fixation.
Further, the seal box includes combed plate, seal box cover board and nozzle casing.
Further, the adherent wind nozzle uses heat resisting steel material, and the adherent wind nozzle is in one protruded into burner hearth
End is along the circumferential direction equipped with several circular holes, and the adherent wind nozzle is equipped with cooling air holes in the axial direction.
Further, it is connected between the metal hose and adherent wind nozzle using nipple.
Further, the lower part of each adherent wind nozzle is respectively equipped with a smoke components real-time measurement apparatus.
Further, the radius of protection of the single adherent wind nozzle is 0.5-1.2m.
Compared with prior art, the beneficial effects of the present invention are:
It is proposed by the present invention a kind of for preventing the adherent wind apparatus of boiler water wall abrasion and high temperature corrosion, structure letter
It is single, several adherent wind nozzles are arranged by the water cooling wall region that high temperature corrosion easily occurs in pulverized-coal fired boiler, and be by pressure fan
Adherent wind nozzle air-supply, the adherent wind jet stream sprayed from the circular hole of the circumferencial direction of adherent wind nozzle are parallel to water-cooling wall wall surface
It spreads around, forms one layer of oxygen-enriched air film in water cooling wall surface, reducing atmosphere and the coal dust for reducing water-cooling wall wall surface are dense
Degree, to prevent waterwall tube cracking and high temperature corrosion, blower air feed pressure wind speed is more stably and controllable；Adherent wind nozzle is protruding into
One end of burner hearth is axially arranged with cooling air holes, and the blowout from cooling air holes of the wind in adherent wind nozzle can play cooling adherent wind
The effect of nozzle prevents adherent wind nozzle scaling loss, can also prevent nozzle slagging from hanging burnt；And adherent wind nozzle is adopted with seal box
It with flange and is bolted, facilitates and replaced outside adherent wind nozzle furnace.
Detailed description of the invention
Fig. 1 is that of the invention a kind of for preventing, boiler water wall from wearing and the adherent wind apparatus of high temperature corrosion is in a water
Structural plan on cold wall face；
Fig. 2 is A-A direction view in Fig. 1；
Fig. 3 is the main view of single adherent wind nozzle of the invention during installation；
Fig. 4 is the side view of single adherent wind nozzle of the invention during installation.
In figure:
1, adherent wind nozzle；11, circular hole；12, bolt；13, flange；2, bend pipe；3, seal box；31, combed plate；32, close
Jacket cover board；33, nozzle casing；34, fire resistant infilling；4, air supply pipe；41, reducer tee；42, blowpipe；421, stainless
Steel three-dimensional expansion joint；43, metal hose；431, nipple；5, motorized adjustment baffle door；6, pressure fan；7, smoke components are real
When measuring device.
Specific embodiment
It shows that example illustrates certain embodiments of the present invention, and should not be construed as limiting model of the invention
It encloses.Present disclosure can be improved from material, method and reaction condition simultaneously, all these improvement should all
It falls within spirit and scope of the invention.
It is as shown in Figs 1-4 a kind of for preventing boiler water wall from wearing and the adherent wind apparatus of high temperature corrosion, including be in
Matrix form is distributed in the adherent wind nozzle 1 on each face wall of water-cooling wall, positioned at each of same level height on a wall-cooling surface
The adherent wind nozzle 1 is connected to the same blowpipe 42 by metal hose 43 respectively, the metal hose 43 with it is adherent
It is connected between wind nozzle 1 using nipple 431, the blowpipe 42 is equipped with stainless steel three-dimensional expansion joint 421, absorbs pot
Furnace and pipeline itself expansion；It is female that air-supply is connected to by reducer tee 41 respectively positioned at each blowpipe 42 of different height
Pipe 4, the air supply pipe 4 are connected to pressure fan 6, and individually adherent wind pressure fan 6 is arranged, will not be because of First air or Secondary Air wind
Amount or wind pressure not enough influence adherent wind operation, and adherent wind air quantity accounts for about the 1~2% of boiler total blast volume, and adherent wind is for wind pressure
Stablize, the adherent wind protection scope that adherent wind nozzle 1 sprays is bigger, and adherent 1 quantity of wind nozzle that single side water-cooling wall needs is significant
It reduces；The air supply pipe 4 is equipped with motorized adjustment baffle door 5 for adjusting wind speed, and adherent 1 wind speed of wind nozzle can be according to setting
Motorized adjustment baffle door 5 in air supply pipe 4 is adjusted.
The adherent wind nozzle 1 is mounted in the aperture on wall-cooling surface, and the water screen tube of the tapping is bend pipe 2,
The aperture is sealed by seal box 3, and fire resistant infilling 34 is equipped in the cavity formed between the seal box 3 and bend pipe 2, described
It is connected and fixed between adherent wind nozzle 1 and seal box 3 by flange 13, bolt 12, facilitates and replaced outside adherent 1 furnace of wind nozzle；Institute
Stating seal box 3 includes combed plate 31, seal box cover board 32 and nozzle casing 33, further, the adherent wind nozzle 1 and flange
13 are connected using welding, flange 13 and seal box cover board 32 using bolt 12.
The adherent wind nozzle 1 uses heat resisting steel material, and the adherent wind nozzle 1 is protruding into one end in burner hearth circumferentially
Direction is equipped with several circular holes 11, and the adherent wind jet stream that circular hole 11 sprays is parallel to water-cooling wall wall surface and spreads around, oxygen-enriched air
Layer protecting film is formed in water-cooling wall wall surface, reducing atmosphere is destroyed, reduces water cooling wall temperature；The adherent wind nozzle 1 is along axis
Line direction is equipped with cooling air holes, and wind is sprayed from cooling air holes can play the role of cooling adherent wind nozzle 1, prevents adherent wind
1 scaling loss of nozzle can also prevent adherent 1 slagging of wind nozzle from hanging burnt.
The lower part of each adherent wind nozzle 1 is respectively equipped with a smoke components real-time measurement apparatus 7, and water can be monitored in real time
Cold wall avoids oxygen amount and CO concentration.
The radius of protection of the single adherent wind nozzle 1 is 0.5-1.2m, and arrangement of nozzles position and quantity are according to perishable
Area size and actual conditions determine.
Compared with prior art, the adherent wind apparatus structure of the application is simple, by the way that high temperature corruption easily occurs in pulverized-coal fired boiler
The water cooling wall region of erosion arranges several adherent wind nozzles, and is the air-supply of adherent wind nozzle by pressure fan, from adherent wind nozzle
The adherent wind jet stream sprayed in the circular hole of circumferencial direction is parallel to water-cooling wall wall surface and spreads around, forms one in water cooling wall surface
Layer oxygen-enriched air film, reduces the reducing atmosphere and coal powder density of water-cooling wall wall surface, to prevent waterwall tube cracking and high temperature rotten
Erosion, blower air feed pressure wind speed are more stably and controllable；Adherent wind nozzle is axially arranged with cooling air holes in the one end for protruding into burner hearth, patch
Wind in wall wind nozzle is blown out from cooling air holes can play the role of cooling adherent wind nozzle, prevent adherent wind nozzle from burning
Damage can also prevent nozzle slagging from hanging burnt；And adherent wind nozzle using flange and is bolted with seal box, facilitates adherent wind
It is replaced outside nozzle furnace.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (7)
1. a kind of for preventing the adherent wind apparatus of boiler water wall abrasion and high temperature corrosion, which is characterized in that including being in matrix
Formula is distributed in the adherent wind nozzle (1) on each face wall of water-cooling wall, and each institute of same level height is located on a wall-cooling surface
It states adherent wind nozzle (1) to be connected to the same blowpipe (42) by metal hose (43) respectively, the blowpipe (42)
It is equipped with stainless steel three-dimensional expansion joint (421), each blowpipe (42) positioned at different height passes through reducer tee respectively
(41) it is connected to air supply pipe (4), the air supply pipe (4) is connected to pressure fan (6), and the air supply pipe (4), which is equipped with, to be used
In the motorized adjustment baffle door (5) for adjusting wind speed.
2. it is according to claim 1 a kind of for preventing the adherent wind apparatus of boiler water wall abrasion and high temperature corrosion,
It is characterized in that, the adherent wind nozzle (1) is mounted in the aperture on wall-cooling surface, and the water screen tube of the tapping is bend pipe
(2), the aperture is sealed by seal box (3), and fire resisting is equipped in the cavity formed between the seal box (3) and bend pipe (2)
Filler (34) is connected and fixed between the adherent wind nozzle (1) and seal box (3) by flange (13), bolt (12).
3. it is according to claim 2 a kind of for preventing the adherent wind apparatus of boiler water wall abrasion and high temperature corrosion,
It is characterized in that, the seal box (3) includes combed plate (31), seal box cover board (32) and nozzle casing (33).
4. it is according to claim 1 a kind of for preventing the adherent wind apparatus of boiler water wall abrasion and high temperature corrosion,
It is characterized in that, the adherent wind nozzle (1) uses heat resisting steel material, and the adherent wind nozzle (1) is protruding into one end in burner hearth
Several circular holes (11) along the circumferential direction are equipped with, the adherent wind nozzle (1) is equipped with cooling air holes in the axial direction.
5. it is according to claim 1 a kind of for preventing the adherent wind apparatus of boiler water wall abrasion and high temperature corrosion,
It is characterized in that, is connect between the metal hose (43) and adherent wind nozzle (1) using nipple (431).
6. it is according to claim 1 a kind of for preventing the adherent wind apparatus of boiler water wall abrasion and high temperature corrosion,
It is characterized in that, the lower part of each adherent wind nozzle (1) is respectively equipped with a smoke components real-time measurement apparatus (7).
7. it is according to claim 1 a kind of for preventing the adherent wind apparatus of boiler water wall abrasion and high temperature corrosion,
It is characterized in that, the radius of protection of the single adherent wind nozzle (1) is 0.5-1.2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910490847.5A CN110081420A (en) | 2019-06-06 | 2019-06-06 | It is a kind of for prevent boiler water wall wear and high temperature corrosion adherent wind apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910490847.5A CN110081420A (en) | 2019-06-06 | 2019-06-06 | It is a kind of for prevent boiler water wall wear and high temperature corrosion adherent wind apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110081420A true CN110081420A (en) | 2019-08-02 |
Family
ID=67423792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910490847.5A Pending CN110081420A (en) | 2019-06-06 | 2019-06-06 | It is a kind of for prevent boiler water wall wear and high temperature corrosion adherent wind apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110081420A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720816A (en) * | 2020-06-19 | 2020-09-29 | 江苏方天电力技术有限公司 | High-temperature corrosion prevention nozzle for coal-fired power plant |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101706110A (en) * | 2009-11-17 | 2010-05-12 | 西安交通大学 | Near-wall air device for preventing high-temperature corrosion of water-cooled wall of power station boiler |
| CN102980176A (en) * | 2012-11-29 | 2013-03-20 | 华南理工大学 | Adherence air device for preventing high-temperature corrosion of water cooling wall of refuse burning boiler |
| WO2014127617A1 (en) * | 2013-02-20 | 2014-08-28 | 上海锅炉厂有限公司 | Rich-lean pulverized coal separation and arrangement mode of direct-flow burners in eight corners with double fireballs |
| CN208186326U (en) * | 2018-05-14 | 2018-12-04 | 烟台龙源电力技术股份有限公司 | A kind of adherent wind system of boiler for preventing water wall high temperature corrosion |
| CN210069831U (en) * | 2019-06-06 | 2020-02-14 | 中节环立为（武汉）能源技术有限公司 | Wall-attached air device for preventing abrasion and high-temperature corrosion of boiler water-cooled wall |
-
2019
- 2019-06-06 CN CN201910490847.5A patent/CN110081420A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101706110A (en) * | 2009-11-17 | 2010-05-12 | 西安交通大学 | Near-wall air device for preventing high-temperature corrosion of water-cooled wall of power station boiler |
| CN102980176A (en) * | 2012-11-29 | 2013-03-20 | 华南理工大学 | Adherence air device for preventing high-temperature corrosion of water cooling wall of refuse burning boiler |
| WO2014127617A1 (en) * | 2013-02-20 | 2014-08-28 | 上海锅炉厂有限公司 | Rich-lean pulverized coal separation and arrangement mode of direct-flow burners in eight corners with double fireballs |
| CN208186326U (en) * | 2018-05-14 | 2018-12-04 | 烟台龙源电力技术股份有限公司 | A kind of adherent wind system of boiler for preventing water wall high temperature corrosion |
| CN210069831U (en) * | 2019-06-06 | 2020-02-14 | 中节环立为（武汉）能源技术有限公司 | Wall-attached air device for preventing abrasion and high-temperature corrosion of boiler water-cooled wall |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720816A (en) * | 2020-06-19 | 2020-09-29 | 江苏方天电力技术有限公司 | High-temperature corrosion prevention nozzle for coal-fired power plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101334164B (en) | Industrial boiler combustion method | |
| CN101706110A (en) | Near-wall air device for preventing high-temperature corrosion of water-cooled wall of power station boiler | |
| CN1308615C (en) | Boiler device with wall fitted burner for preventing water-cooled wall corroded by high-temp and slagging scorification | |
| CN103160329B (en) | Coal water slurry water wall gasification furnace of waste heat boiler process | |
| CN205382134U (en) | Coal slurry gasification equipment | |
| CN109838794A (en) | A kind of water-cooling jacket incinerator and method handling salt bearing liquid wastes and exhaust gas | |
| CN101324334B (en) | Low NOx liquid state slag-off double-eddy flow coal-powder combustor | |
| US5819672A (en) | Treatment to enhance heat retention in coal and biomass burning furnaces | |
| CN2786440Y (en) | Boiler with wall type arranged burner capable of preventing water-cooled wall from high temperature corrosion and slag bonding | |
| CN204008417U (en) | A kind of sectional temperature-controlled coal-burning boiler high temperature corrosion and Slagging Characteristics test unit | |
| CN108251162A (en) | More burner coal slurry gasifiers | |
| JPH07506877A (en) | Method and apparatus for improving the safety of treated liquid recovery boilers | |
| CN105509064A (en) | Chemical waste incinerator | |
| CN110081420A (en) | It is a kind of for prevent boiler water wall wear and high temperature corrosion adherent wind apparatus | |
| CN101629718A (en) | Low-nitrogen-oxide multi-tube axial eddy pulverized-coal burner | |
| CN214406091U (en) | Environment-friendly incineration boiler suitable for high-calorific-value dangerous waste liquid | |
| CN210069831U (en) | Wall-attached air device for preventing abrasion and high-temperature corrosion of boiler water-cooled wall | |
| CN112879899A (en) | Primary air opposite flushing device for preventing slag bonding and corrosion of water-cooled wall of rear wall of boiler | |
| CN101846308B (en) | Circulating fluidized bed domestic waste incineration power generation boiler | |
| CN206786707U (en) | A kind of air distribution arrangement system for solving high-temperature corrosion in boiler | |
| CN109609195A (en) | Fine coal burner and mounting means | |
| CN205825033U (en) | High parameter garbage burning boiler with reheating | |
| CN207122896U (en) | A kind of coal spout coal spread wind device | |
| CN104121595B (en) | Rapid cooling type smoke mixing chamber device | |
| CN112283741A (en) | Device for preventing corrosion of water cooled wall of high-sulfur coal million units 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 |