CN109458631A - A kind of adherent wind system preventing tangentially-fired boiler water wall high temperature corrosion and its working method - Google Patents
A kind of adherent wind system preventing tangentially-fired boiler water wall high temperature corrosion and its working method Download PDFInfo
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- CN109458631A CN109458631A CN201811357462.3A CN201811357462A CN109458631A CN 109458631 A CN109458631 A CN 109458631A CN 201811357462 A CN201811357462 A CN 201811357462A CN 109458631 A CN109458631 A CN 109458631A
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- 230000001464 adherent effect Effects 0.000 title claims abstract description 151
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 238000005260 corrosion Methods 0.000 title claims abstract description 27
- 230000007797 corrosion Effects 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 35
- 238000010304 firing Methods 0.000 claims abstract description 30
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- 230000004323 axial length Effects 0.000 claims description 3
- 239000003546 flue gas Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 210000004894 snout Anatomy 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N3/00—Regulating air supply or draught
-
- 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
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- 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 adherent wind system for preventing tangentially-fired boiler water wall high temperature corrosion and its working methods, including the adherent wind apparatus in front wall firing device region, the adherent wind apparatus in rear wall firing device region, the adherent wind apparatus of left wall burner region and the right adherent wind apparatus of wall burner region；The adherent wind apparatus in front wall firing device region, the adherent wind apparatus in rear wall firing device region, the adherent wind apparatus of left wall burner region and the right adherent wind apparatus of wall burner region are located on front water wall, rear water wall, left wall water-cooling wall and right wall water-cooling wall；The right adherent wind apparatus of wall burner region includes curved baffle, adherent wind bellows, adjusting actuator, taper plug, adjusts connecting rod, air duct, damper, main pipe, A wall surface atmosphere monitor and B wall surface atmosphere monitor.The present invention has the characteristics that area coverage is wide, can refine adjusting, sea land distribution is slow, spout good cooling results.
Description
Technical field
The present invention relates to a kind of adherent wind system and methods, prevent tangentially-fired boiler water cooling more particularly to one kind
The adherent wind system and its working method of wall high-temperature corrosion.
Background technique
China's boilers of power plants coal quality is more miscellaneous, and often and the characteristic of design fuel is there are certain deviation, and coal quality is regular
Variation and coal blending blending are burnt unreasonable the problems such as often bringing slagging, contamination and high temperature corrosion, wherein High Temperature Corrosion pair
The influence of boiler operatiopn reliability is maximum；With the raising of coal-burning boiler capacity and parameter, boiler water wall problem is also accordingly mentioned
Height also results in the generation of high temperature corrosion phenomenon；In addition, in order to reach NOXThe requirement of minimum discharge, most of power plant, which use, to be divided
The low nitrogen burnings mode such as level air-distribution, the oxygen debt burning of primary combustion zone have been further exacerbated by the high temperature corrosion of water-cooling wall.
Studies have shown that the generation major influence factors of high temperature corrosion are as follows: wall surface reducing atmosphere, tube wall temperature, H2S and SO3
Concentration.Sulfur content is controlled from as-fired coal angle to contain high temperature corrosion, and cost is too high, it is difficult to realize；From reduction tube wall temperature
Degree sets out to contain high temperature corrosion, influences unit economy；And from optimization wall surface reducing atmosphere, it can be to a certain degree
Upper mitigation water wall high temperature corrosion, and it is simple and easy, it is widely applied in engineering, as application No. is 200910218992.4
Chinese patent.But the adherent wind method of tradition has the following problems:
1) adherent wind covers incomplete in water-cooling wall, and uncovered area prevents the effect of high temperature corrosion poor；
2) it cannot be distributed according to water-cooling wall surface reduction atmosphere and carry out the adherent air quantity of fining adjustment；
3) adherent wind wind direction and water-cooling wall are axially perpendicular, and than very fast, effect halves sea land distribution；
4) cooling condition of adherent wind snout is poor, spout burnout phenomenon easily occurs.
In conclusion adherent wind can be used as a kind of effective ways for solving water wall high temperature corrosion, but in practical application
Cause effect poor since method is improper, it is badly in need of that a kind of area coverage is wide, can refine adjusting, sea land distribution is slow, spout
The adherent wind system and method for good cooling results better solve water wall high temperature corrosion problem.
Summary of the invention
It is an object of the invention to overcome the above deficiencies in the existing technologies, and providing one kind prevents quadrangle tangential circle from firing
The adherent wind system and its working method of burning boiler water wall high temperature corrosion, have that area coverage is wide, can refine adjusting, wind speed
The features such as decaying is slow, spout good cooling results.
Technical solution used by the present invention solves the above problems is: one kind prevents tangentially-fired boiler water-cooling wall high
The adherent wind system of temperature corrosion, which is characterized in that adherent including the adherent wind apparatus in front wall firing device region, rear wall firing device region
Wind apparatus, the adherent wind apparatus of left wall burner region and the right adherent wind apparatus of wall burner region；Front wall firing device region
Adherent wind apparatus, the adherent wind apparatus in rear wall firing device region, the adherent wind apparatus of left wall burner region and right wall burner region
Adherent wind apparatus is located on front water wall, rear water wall, left wall water-cooling wall and right wall water-cooling wall, and front wall firing device
The adherent wind apparatus in region, the adherent wind apparatus in rear wall firing device region, the adherent wind apparatus of left wall burner region and right wall burner
The adherent wind apparatus in region is respectively positioned in burner region；The right adherent wind apparatus of wall burner region includes curved baffle, patch
Wall wind bellows, taper plug, adjust connecting rod, air duct, damper, main pipe, A wall surface atmosphere monitor and B wall at adjusting actuator
Face atmosphere monitor；The adherent wind bellows are fixed on right wall water-cooling wall, and the curved baffle is fixed on two adjacent water
Between cold wall pipe, and the anhydrous cold wall fin in corresponding position between two adjacent water screen tubes, the curved baffle setting
In the region of adherent wind bellows covering；The air duct import is connected to main pipe, and ducting outlet is connected to adherent wind bellows, described
Damper is located at air duct entrance, the exit for adjusting connecting rod and being located at air duct, and the one end for adjusting connecting rod is held with adjusting
Row device connects, and is fixed with taper plug on the adjusting connecting rod, the taper plug is located in air duct, and taper plug is with tune
Section connecting rod is moved left and right, and is adjusted for the air quantity to two sides in air duct；The A wall surface atmosphere monitor and B wall surface
Atmosphere monitor is located at the two sides in air duct, and A wall surface atmosphere monitor and B wall surface atmosphere monitor pass through probe tube with
The connection of water-cooling wall fin carries out constituent analysis for extracting the flue gas in burner hearth at right wall water-cooling wall；Front wall firing device area
The adherent wind apparatus in domain, the adherent wind apparatus in rear wall firing device region, the adherent wind apparatus of left wall burner region and the burner region You Qiang
The structure of the adherent wind apparatus in domain is all the same.
Preferably, the invention also includes the adherent wind dresses of the adherent wind apparatus in right wall burnout degree region and rear wall burnout degree region
Set, the adherent wind apparatus in the right wall burnout degree region and the adherent wind apparatus in rear wall burnout degree region be located at right wall water-cooling wall and
On rear water wall, and the adherent wind apparatus of the adherent wind apparatus in right wall burnout degree region and rear wall burnout degree region is respectively positioned on burnout degree
In region, the adherent wind apparatus in the right wall burnout degree region and the adherent wind apparatus in rear wall burnout degree region with the burner region You Qiang
The structure of the adherent wind apparatus in domain is identical.
Preferably, the curved baffle is the rectangle curved-surface structure to burner hearth internal projection, material is high-temperature alloy
Steel；The curved baffle is 0.8m ~ 1.5m along the axial length of water screen tube, and curved baffle is welded in two neighboring water-cooling wall
Between pipe, adherent wind is collectively formed between the two neighboring water screen tube and curved baffle and enters channel.
Preferably, the adherent wind bellows are truncated rectangular pyramids structure, for guaranteeing that each adherent wind enters wind speed one in channel
It causes.
Preferably, the adjusting actuator, damper, A wall surface atmosphere monitor and B wall surface atmosphere monitor with
Computer connection, by each wall surface airflow condition, regulates and controls the aperture of damper and the left-right position of taper plug.
Preferably, the main pipe is First air main pipe or Secondary Air main pipe.
The above-mentioned working method for preventing the adherent wind system of tangentially-fired boiler water wall high temperature corrosion is as follows:
Step 1: main pipe conveys First air or Secondary Air, enters adherent wind bellows by air duct；
Step 2: adherent wind by multiple adherent wind enter channel vertically into, with curved baffle hit after change direction, along water
Cold wall pipe is axial to be flowed towards upper and lower both direction；
Step 3: computer judges two side walls according to the testing result of A wall surface atmosphere monitor and B wall surface atmosphere monitor
Wind conditions the left and right position that adjusting actuator changes taper plug is passed through by the aperture regulation wind speed size of damper
Set the difference for realizing wall surface two sides air quantity.
Compared with prior art, the present invention having the following advantages that and effect:
1) present invention uses curved baffle, realizes that adherent wind wind direction is axially parallel with water screen tube, reduces sea land distribution, covering surface
Product is wide, can reduce adherent air quantity, avoids impacting burning in furnace.
2) present invention is by computer according to the testing result of A wall surface atmosphere monitor and B wall surface atmosphere monitor, judgement
Wind speed at two side walls changes taper plug by adjusting actuator by the aperture regulation wind speed size of damper
Left-right position realizes that two sides air volume is different, realizes adherent air quantity fining and adjusts.
3) present invention uses curved baffle, increases the contact area of adherent wind and baffle, and spout cooling effect enhances, together
When curved design can reduce adherent wind and loss of momentum when baffle contacts.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the embodiment of the present invention.
Fig. 2 is the cross-sectional view in the face C-C in Fig. 1.
Fig. 3 is enlarged drawing at D in Fig. 2.
In figure: the adherent wind apparatus 1 in front wall firing device region, the adherent wind apparatus 2 in rear wall firing device region, the burner region Zuo Qiang
The adherent wind apparatus 3 in domain, the adherent wind apparatus 4 of right wall burner region, front water wall 5, rear water wall 6, left wall water-cooling wall 7,
Right wall water-cooling wall 8, burnout degree region 9, burner region 10, the adherent wind apparatus 11 in right wall burnout degree region, Hou Qiang burnout degree area
The adherent wind apparatus 12 in domain, burner hearth 13, curved baffle 41, adherent wind bellows 42, adjusting actuator 43, taper plug 44, the company of adjusting
Bar 45, air duct 46, damper 47, main pipe 48, A wall surface atmosphere monitor 49, B wall surface atmosphere monitor 50, water screen tube 81,
Water-cooling wall fin 82.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited to following embodiments.
Embodiment.
Referring to Fig. 1 to Fig. 3, a kind of adherent wind system preventing tangentially-fired boiler water wall high temperature corrosion, including
The adherent wind apparatus 1 in front wall firing device region, the adherent wind apparatus 2 in rear wall firing device region, the adherent wind apparatus 3 of left wall burner region
With the adherent wind apparatus 4 of right wall burner region；The adherent wind apparatus 1 in front wall firing device region, the adherent wind dress in rear wall firing device region
Set 2, the adherent wind apparatus 3 of left wall burner region and the adherent wind apparatus 4 of right wall burner region be located at front water wall 5,
On rear water wall 6, left wall water-cooling wall 7 and right wall water-cooling wall 8, and the adherent wind apparatus 1 in front wall firing device region, rear wall firing device
The adherent wind apparatus 2 in region, the adherent wind apparatus 3 of left wall burner region and the adherent wind apparatus 4 of right wall burner region are respectively positioned on combustion
In burner region 10.
The right adherent wind apparatus 4 of wall burner region includes curved baffle 41, adherent wind bellows 42, adjusting actuator 43, cone
Shape plug 44 adjusts connecting rod 45, air duct 46, damper 47, main pipe 48, A wall surface atmosphere monitor 49 and the monitoring of B wall surface atmosphere
Instrument 50；Adherent wind bellows 42 are fixed on right wall water-cooling wall 8, curved baffle 41 be fixed on two adjacent water screen tubes 81 it
Between, and the anhydrous cold wall fin 82 in corresponding position between two adjacent water screen tubes 81, curved baffle 41 are arranged adherent
In the region that wind bellows 42 cover；46 import of air duct is connected to main pipe 48, and the outlet of air duct 46 is connected to adherent wind bellows 42, is adjusted
Air door 47 is located at 46 entrance of air duct, adjusts the exit that connecting rod 45 is located at air duct 46, and adjusts one end and the adjusting of connecting rod 45
Actuator 43 connects, and adjusts and is fixed with taper plug 44 on connecting rod 45, taper plug 44 is located in air duct 46, and taper plug 44
It is moved left and right with connecting rod 45 is adjusted, is adjusted for the air quantity to two sides in air duct 46；A wall surface atmosphere monitor 49
The two sides in air duct 46, and A wall surface atmosphere monitor 49 and B wall surface atmosphere monitor are located at B wall surface atmosphere monitor 50
50 are connect by probe tube with water-cooling wall fin 82, carry out ingredient for extracting the flue gas in burner hearth 13 at right wall water-cooling wall 8
Analysis.
The adherent wind apparatus 1 in front wall firing device region, the adherent wind apparatus 2 in rear wall firing device region, left wall burner region patch
The structure of wall wind apparatus 3 and the adherent wind apparatus 4 of right wall burner region is all the same.
It further include the adherent wind apparatus 11 in right wall burnout degree region and the adherent wind apparatus in rear wall burnout degree region in the present embodiment
12, the adherent wind apparatus 12 of the adherent wind apparatus 11 in right wall burnout degree region and rear wall burnout degree region is located at right wall water-cooling wall 8
On rear water wall 6, and the equal position of the adherent wind apparatus 12 of the adherent wind apparatus 11 in right wall burnout degree region and rear wall burnout degree region
In in burnout degree region 9, the adherent wind apparatus 12 of the adherent wind apparatus 11 in right wall burnout degree region and rear wall burnout degree region with the right side
The structure of the adherent wind apparatus 4 of wall burner region is identical.
Curved baffle 41 is the rectangle curved-surface structure to 13 internal projection of burner hearth, and material is high-temperature alloy steel；Curved surface gear
Plate 41 along water screen tube 81 axial length be 0.8m ~ 1.5m, and curved baffle 41 be welded in two neighboring water screen tube 81 it
Between, adherent wind is collectively formed between the two neighboring water screen tube 81 and curved baffle 41 and enters channel.
Adherent wind bellows 42 are truncated rectangular pyramids structure, for guaranteeing that it is consistent that each adherent wind enters wind speed in channel.
Adjusting actuator 43, damper 47, A wall surface atmosphere monitor 49 and B wall surface atmosphere monitor 50 with calculating
Machine connection regulates and controls the aperture of damper 47 and the left-right position of taper plug 44 by each wall surface airflow condition.
Main pipe 48 is First air main pipe or Secondary Air main pipe.
The above-mentioned working method for preventing the adherent wind system of tangentially-fired boiler water wall high temperature corrosion is as follows:
Step 1: main pipe 48 conveys First air or Secondary Air, enters adherent wind bellows 42 by air duct 46；
Step 2: adherent wind by multiple adherent wind enter channel vertically into, with curved baffle 41 hit after change direction, edge
Water screen tube 81 is axial to be flowed towards upper and lower both direction；
Step 3: computer judges two sides according to the testing result of A wall surface atmosphere monitor 49 and B wall surface atmosphere monitor 50
The wind conditions of wall surface change taper plug by adjusting actuator 43 by the aperture regulation wind speed size of damper 47
44 left-right position realizes the difference of wall surface two sides air quantity.
It is any to be familiar with although the present invention is disclosed as above with embodiment, its protection scope being not intended to limit the invention
The technical staff of this technology changes and retouches made without departing from the spirit and scope of the invention, should belong to this hair
Bright protection scope.
Claims (7)
1. a kind of adherent wind system for preventing tangentially-fired boiler water wall high temperature corrosion, which is characterized in that including front wall
The adherent wind apparatus of burner region (1), the adherent wind apparatus in rear wall firing device region (2), the left adherent wind apparatus of wall burner region
(3) and the right adherent wind apparatus of wall burner region (4)；The adherent wind apparatus in front wall firing device region (1), rear wall firing device area
The adherent wind apparatus in domain (2), the left adherent wind apparatus of wall burner region (3) and the right adherent wind apparatus of wall burner region (4) are respectively
On front water wall (5), rear water wall (6), left wall water-cooling wall (7) and right wall water-cooling wall (8), and front wall firing device area
The adherent wind apparatus in domain (1), the adherent wind apparatus in rear wall firing device region (2), the left adherent wind apparatus of wall burner region (3) He Youqiang
The adherent wind apparatus of burner region (4) is respectively positioned in burner region (10)；The right adherent wind apparatus of wall burner region (4)
Including curved baffle (41), adherent wind bellows (42), adjusting actuator (43), taper plug (44), adjust connecting rod (45), air duct
(46), damper (47), main pipe (48), A wall surface atmosphere monitor (49) and B wall surface atmosphere monitor (50)；It is described adherent
Wind bellows (42) are fixed on right wall water-cooling wall (8), and the curved baffle (41) is fixed on two adjacent water screen tubes (81)
Between, and the anhydrous cold wall fin (82) in corresponding position between two adjacent water screen tubes (81), the curved baffle
(41) it is arranged in the region that adherent wind bellows (42) cover；Air duct (46) import is connected to main pipe (48), air duct (46)
Outlet is connected to adherent wind bellows (42), and the damper (47) is located at air duct (46) entrance, the adjusting connecting rod (45)
Positioned at the exit of air duct (46), and the one end for adjusting connecting rod (45) is connect with adjusting actuator (43), the adjusting connecting rod
(45) it is fixed on taper plug (44), the taper plug (44) is located in air duct (46), and taper plug (44) is with tune
Section connecting rod (45) is moved left and right, for the air quantity of air duct (46) interior two sides to be adjusted；The A wall surface atmosphere monitor
(49) and B wall surface atmosphere monitor (50) is located at the two sides of air duct (46), and A wall surface atmosphere monitor (49) and B wall surface
Atmosphere monitor (50) is connect by probe tube with water-cooling wall fin (82), for extracting right wall water-cooling wall in burner hearth (13)
(8) flue gas at carries out constituent analysis；The adherent wind apparatus in front wall firing device region (1), the adherent wind in rear wall firing device region
The structure of device (2), the left adherent wind apparatus of wall burner region (3) and the right adherent wind apparatus of wall burner region (4) is all the same.
2. the adherent wind system according to claim 1 for preventing tangentially-fired boiler water wall high temperature corrosion, special
Sign is, further includes the adherent wind apparatus of the adherent wind apparatus in right wall burnout degree region (11) and rear wall burnout degree region (12), described
The adherent wind apparatus of the adherent wind apparatus in right wall burnout degree region (11) and rear wall burnout degree region (12) is located at right wall water-cooling wall
(8) and on rear water wall (6), and the adherent wind apparatus of the adherent wind apparatus in right wall burnout degree region (11) and rear wall burnout degree region
(12) it is respectively positioned in burnout degree region (9), the adherent wind apparatus in the right wall burnout degree region (11) and rear wall burnout degree region patch
Wall wind apparatus (12) is identical as the structure of the right adherent wind apparatus of wall burner region (4).
3. the adherent wind system according to claim 1 for preventing tangentially-fired boiler water wall high temperature corrosion, special
Sign is that the curved baffle (41) is the rectangle curved-surface structure to burner hearth (13) internal projection, and material is high-temperature alloy steel；
The curved baffle (41) along water screen tube (81) axial length be 0.8m ~ 1.5m, and curved baffle (41) be welded in it is adjacent
Between two water screen tubes (81), adherent wind is collectively formed between the two neighboring water screen tube (81) and curved baffle (41)
Into channel.
4. the adherent wind system according to claim 1 or 3 for preventing tangentially-fired boiler water wall high temperature corrosion,
It is characterized in that, the adherent wind bellows (42) are truncated rectangular pyramids structure, for guaranteeing that it is consistent that each adherent wind enters wind speed in channel.
5. the adherent wind system according to claim 1 for preventing tangentially-fired boiler water wall high temperature corrosion, special
Sign is, the adjusting actuator (43), damper (47), A wall surface atmosphere monitor (49) and B wall surface atmosphere monitor
(50) it is connect with computer, by each wall surface airflow condition, regulates and controls the aperture and taper plug (44) of damper (47)
Left-right position.
6. the adherent wind system according to claim 1 for preventing tangentially-fired boiler water wall high temperature corrosion, special
Sign is that the main pipe (48) is First air main pipe or Secondary Air main pipe.
7. a kind of prevent the adherent of tangentially-fired boiler water wall high temperature corrosion as of any of claims 1-6
The working method of wind system, which is characterized in that the working method is as follows: step 1: main pipe (48) conveys First air or secondary
Wind enters adherent wind bellows (42) by air duct (46)；Step 2: adherent wind by multiple adherent wind enter channel vertically into
Enter, changes direction after hitting with curved baffle (41), it is axial towards the flowing of upper and lower both direction along water screen tube (81)；Step 3:
Computer judges the wind of two side walls according to the testing result of A wall surface atmosphere monitor (49) and B wall surface atmosphere monitor (50)
Fast situation changes taper plug (44) by adjusting actuator (43) by the aperture regulation wind speed size of damper (47)
Left-right position realize wall surface two sides air quantity difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811357462.3A CN109458631B (en) | 2018-11-15 | 2018-11-15 | Wall-attached air system and method for preventing high-temperature corrosion of water-cooled wall of tetragonal tangential boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811357462.3A CN109458631B (en) | 2018-11-15 | 2018-11-15 | Wall-attached air system and method for preventing high-temperature corrosion of water-cooled wall of tetragonal tangential boiler |
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| Publication Number | Publication Date |
|---|---|
| CN109458631A true CN109458631A (en) | 2019-03-12 |
| CN109458631B CN109458631B (en) | 2024-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811357462.3A Active CN109458631B (en) | 2018-11-15 | 2018-11-15 | Wall-attached air system and method for preventing high-temperature corrosion of water-cooled wall of tetragonal tangential boiler |
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| CN (1) | CN109458631B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797401A (en) * | 2021-01-04 | 2021-05-14 | 苏州西热节能环保技术有限公司 | Method for improving reducing atmosphere of side wall water-cooled wall of opposed firing boiler |
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| CN105509086A (en) * | 2015-12-02 | 2016-04-20 | 西安西热锅炉环保工程有限公司 | Asymmetric high-speed closing-to-wall air system for preventing and controlling high-temperature corrosion of hearth of coal-fired boiler |
| CN207094649U (en) * | 2017-08-09 | 2018-03-13 | 东方电气集团东方锅炉股份有限公司 | A kind of air-deflector for preventing Opposite Firing Boiler high temperature corrosion |
| CN209415503U (en) * | 2018-11-15 | 2019-09-20 | 华电电力科学研究院有限公司 | A kind of adherent wind system preventing tangentially-fired boiler water wall high temperature corrosion |
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| CN112797401A (en) * | 2021-01-04 | 2021-05-14 | 苏州西热节能环保技术有限公司 | Method for improving reducing atmosphere of side wall water-cooled wall of opposed firing boiler |
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