CN115711388A - Water-cooled wall area H 2 Method for controlling S concentration and adjusting device thereof - Google Patents
Water-cooled wall area H 2 Method for controlling S concentration and adjusting device thereof Download PDFInfo
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- CN115711388A CN115711388A CN202211280651.1A CN202211280651A CN115711388A CN 115711388 A CN115711388 A CN 115711388A CN 202211280651 A CN202211280651 A CN 202211280651A CN 115711388 A CN115711388 A CN 115711388A
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Abstract
The application discloses water-cooled wall region H 2 The S concentration control method and the adjusting device thereof comprise the steps of sampling and determining the sulfur content of burning coal based on the type of the burning coal entering a furnace; based on different regions to be detected which are set on the boiler, the content of CO and H in the regions to be detected are monitored in real time 2 The concentration of S; theoretically analyzing the weight ratio of a plurality of influence factors of high-temperature corrosion of the boiler based on a fuzzy analytic hierarchy process; based on CO content and H 2 S, real-time monitoring data of concentration, verifying weight accuracy analyzed by a fuzzy analytic hierarchy process theory, and increasing a correction coefficient k value; based on the corrected weight analysis, the air distribution proportion of the boiler is adjusted, namely the air quantity of the air supply quantity of the boiler is adjustedAnd a direction. The method has the advantages of controlling the reducing atmosphere of CO at the position of the water-cooling wall and reducing H in the boiler 2 And the S concentration reduces the damage of high-temperature corrosion of the boiler, and the effect of eliminating the corrosion hidden danger is maximized.
Description
Technical Field
The application relates to the technical field of power plant boiler operation control, in particular to a water-cooled wall region H 2 A method for controlling S concentration and an adjusting device thereof.
Background
When the boiler operates, fuel with energy is put into the boiler, the water-cooled walls around the hearth of the boiler are heated, water flowing in the water-cooled walls is converted into superheated steam with heat energy, and then the superheated steam is supplied to a steam turbine for subsequent energy conversion, so that power generation work of a power plant is completed.
When the fuel in the boiler is combusted, the oxygen content near the wall of the water-cooled wall is very low, the CO concentration is very high, the combustion area is in a reducing atmosphere, meanwhile, a large amount of corrosive gas exists near the wall of the water-cooled wall, and H is mainly used in the reducing atmosphere 2 S is the main cause of serious high-temperature corrosion at the water wall of the boiler, so that the wall of the water wall is quickly corroded, thinned and even burst, and the operation safety of the boiler is seriously influenced.
In order to solve the high-temperature corrosion phenomenon of the boiler, many power plants install CO and H in the boiler furnace 2 And S, measuring points to obtain real-time data to monitor normal combustion atmosphere in the boiler, so that the monitoring and early warning effect on the high-temperature corrosion degree of the boiler is achieved. However, this data is generally only used for monitoring and does not play a role in active protection against high temperature corrosion of the boiler.
Disclosure of Invention
In order to improve CO and H in the boiler furnace 2 The real-time data obtained by the S measuring point is generally only used for monitoring and does not play a role in active protection of high-temperature corrosion of the boiler, and the water wall region H is provided 2 A method for controlling S concentration and an adjusting device thereof.
In a first aspect, the present application provides a waterwall region H 2 The S concentration control method adopts the following technical scheme:
water-cooled wall area H 2 The S concentration control method comprises the following steps:
sampling and determining the sulfur content of the burning coal based on the type of the burning coal entering the furnace;
based on different regions to be detected which are set on the boiler, the content of CO and H in the regions to be detected are monitored in real time 2 (ii) the concentration of S;
theoretically analyzing the weight ratio of a plurality of influence factors of high-temperature corrosion of the boiler based on a fuzzy analytic hierarchy process;
based on CO content and H 2 S, real-time monitoring data of concentration, verifying weight accuracy analyzed by a fuzzy analytic hierarchy process theory, and increasing a correction coefficient k value;
and setting an air distribution adjusting position and adjusting the air distribution proportion of the boiler, namely adjusting the air volume and the direction of the air supply quantity of the boiler based on the corrected weight analysis.
By adopting the technical scheme, the sulfur content, the CO content and the H content of the burning coal are improved 2 The method includes the steps that a large amount of test data are obtained by relying on real-time monitoring data of S concentration, the test data are combined with theoretical weights of a fuzzy analytic hierarchy process, correction coefficient k values which accord with all weights of high-temperature corrosion influence factors of a measured boiler are obtained through comparison, so that a more accurate judgment on a high-temperature corrosion occurrence area of the measured boiler is obtained, then boiler air distribution ratios of different positions are adjusted, combustion conditions of most positions in a hearth are enabled to be more sufficient, reducing atmosphere of CO at the position of a water wall is reduced, and H at the position of the water wall is reduced 2 And the concentration of S weakens the damage of high-temperature corrosion of the boiler, and maximally eliminates the hidden corrosion danger.
Optionally, the areas to be measured are arranged at different heights of the boiler.
By adopting the technical scheme, as the combustion atmosphere in the boiler from bottom to top is in the changing process from oxygen deficiency to gradual oxygen enrichment, the combustion conditions of the fuels with different heights can be inconsistent, and further the generated H is caused 2 The S concentration also varied. For different H 2 S concentration sets up the region to be measured of different heights, is favorable to obtaining more accurate, more pertinent monitoring data.
Optionally, each area to be measured is provided with a plurality of groups of air distribution adjusting positions correspondingly.
By adopting the technical scheme, the plurality of groups of air distribution adjusting positions are arranged corresponding to the area to be measured, and fuel air flows with different air volumes and directions are correspondingly blown in at different heights of the boiler according to the instant combustion condition in the boiler, so that each height position can obtain sufficient combustion, the CO reducing atmosphere at the water cooling wall is reduced, and H is indirectly controlled 2 The concentration of S reduces the damage of high-temperature corrosion of the boiler.
Optionally, based on the corrected weight analysis, the types of coal burned by the boiler at different positions of the boiler are adjusted.
By adopting the technical scheme, the combustion coal with different sulfur contents is sent into the boiler at the corresponding position according to the corrected weight analysis, and the feeding proportion of the combustion coal with different sulfur contents is adjusted, so that the H at the water-cooled wall is adjusted 2 The S concentration is controlled within an allowable range.
In a second aspect, the present application provides a waterwall region H 2 The S concentration adjusting device adopts the following technical scheme:
water wall area H 2 The adjusting device for the concentration S is arranged at an air distribution adjusting position of the boiler and comprises a shell fixedly connected to the outer wall of the boiler and communicated to a hearth of the boiler, an inner sleeve fixedly connected to the shell, a mixed fuel airflow intake pipe connected to one end, far away from the boiler, of the inner sleeve, a secondary air intake pipe communicated to the inner sleeve, an air volume adjusting assembly arranged in the secondary air intake pipe and an air direction adjusting assembly arranged at one end, far towards the boiler, of the inner sleeve.
By adopting the technical scheme, the mixed fuel gas flow of the coal dust and the primary air is blown into the inner sleeve by the mixed fuel gas flow inlet pipe and finally sent into the hearth of the boiler after penetrating through the inner sleeve, and the secondary air flows through the secondary air inlet pipe to provide oxygen for the combustion of the fuel gas flow, enhance the disturbance of the gas flow, promote the sufficient mixing of combustible materials and the oxygen and provide conditions for complete combustion; the air quantity adjusting component controls and adjusts the air quantity of secondary air in the secondary air inlet pipe, and the air direction adjusting component adjusts the directions of fuel airflow and secondary air sent into the hearth, so that the fuel airflow in the hearth is promoted to be fully combusted, the concentration of CO reducing atmosphere generated at the water cooling wall is reduced, and the purpose of controlling H at the water cooling wall is achieved 2 The concentration of S reduces the occurrence of high-temperature corrosion at the water-cooled wall.
Optionally, the air volume adjusting assembly comprises an impeller rotatably arranged in the secondary air inlet pipe, the impeller is connected with a plurality of groups of blades, the blades are circumferentially distributed along the outer contour of the impeller, and each group of blades is rotatably connected with the impeller.
By adopting the technical scheme, the blades are rotationally connected with the impeller, and the blade gaps between adjacent blades are opened to be closed by rotating and adjusting the blades, so that the air quantity of secondary air in the secondary air inlet pipe is adjusted, fuel airflow in a hearth can obtain proper air quantity for combustion, and the concentration of CO reducing atmosphere at the water-cooled wall is reduced; and the impeller drives the blades to rotate, secondary air is pressurized, and the secondary air is fed into the boiler more stably and quickly.
Optionally, a rotary ball is fixedly connected to one end of each blade, a rotary hole is formed in the outer side wall of each impeller, the rotary ball is partially embedded into the rotary hole, a rotary shaft is fixedly connected to one end, away from each blade, of each rotary ball, a micro motor is connected to one end of each rotary shaft in a transmission mode, and the micro motors are fixedly connected to the insides of the impellers.
Through adopting above-mentioned technical scheme, micro motor drives the roating ball through the pivot and revolves, and the rotation of roating ball drives the blade and carries out angle modulation to realize the control that opens and shuts in adjacent blade clearance, the roating ball is less with the cooperation frictional resistance who changes the hole, rotates reliable and stable, and simple structure is practical, has improved the reliability of amount of wind adjustment subassembly.
Optionally, the blade is configured as a cambered surface transition structure.
Through adopting above-mentioned technical scheme, the blade sets up to cambered surface transition structure, and on the secondary air got into the secondary air-supply line back, impacted the cambered surface of blade, the secondary air obtained the slant direction, has strengthened the intensity that the secondary air flows, makes the more stable inflow of secondary wind energy furnace, strengthens the effect that the air current stirred to make the fuel gas stream obtain better combustion result.
Optionally, the wind direction adjusting assembly comprises a directional seat fixedly connected to one end of the inner sleeve, the directional seat is of a spherical structure, a through air outlet is formed in the directional seat, and the air outlet is communicated with the inner sleeve; a direction adjusting seat is rotatably arranged on the outer side of the directional seat, the direction adjusting seat is of a spherical structure, an adjusting opening is formed in the direction adjusting seat, the caliber of the adjusting opening is smaller than that of the air outlet, and the adjusting opening and the air outlet are arranged in an overlapped mode; the two sides of the direction adjusting seat are hinged with air cylinders, and the air cylinders are used for driving the direction adjusting seat and the directional seat to rotate relatively.
By adopting the technical scheme, the directional seat is communicated with the inner sleeve, and fuel gas flow can pass through the gas outlet on the directional seat and is finally sprayed into the hearth from the regulating port on the directional seat; the piston rod of the cylinder extends out to drive the direction-adjusting seat to rotate at a certain angle relative to the orientation seat, so that the adjusting opening and the air outlet deflect at a certain angle, the direction of fuel airflow entering the hearth is changed, and the fuel airflow reaches a proper combustion position to be sufficiently combusted.
Optionally, an air inlet channel is formed between the inner sleeve and the outer shell, and one end of the outer shell, which is located in the boiler, is provided with inclined plane openings on two sides.
Through adopting above-mentioned technical scheme, external air gets into furnace from the air inlet channel between endotheca and the shell, and through the open direction of shell terminal inclined plane, and the air current flows towards the position of both sides water-cooling wall, has diluted the CO reducing atmosphere of water-cooling wall department, has reduced H 2 The concentration of S is beneficial to protecting the water-cooled wall and avoiding the serious high-temperature corrosion phenomenon.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by setting the sulfur content, CO content and H 2 Measuring the S concentration, comparing the measured data, increasing the correction coefficient k value of the fuzzy analytic hierarchy process, correspondingly adjusting the boiler air distribution ratio based on the corrected weight analysis, ensuring that the combustion condition at most positions in the hearth is more sufficient, reducing the content of CO reducing atmosphere at the position of the water wall, and further reducing the H at the position of the water wall 2 And the concentration of S weakens the damage of high-temperature corrosion of the boiler, and maximally eliminates the corrosion hidden danger.
2. Through the air volume adjusting assembly with the adjusting device, blade gaps between adjacent blades are opened and closed through rotation adjustment of the blades, so that the air volume of secondary air in the secondary air inlet pipe is adjusted, fuel airflow combustion in the hearth can obtain proper air volume supply, the concentration of CO reducing atmosphere at the water-cooled wall is reduced, and the H at the water-cooled wall is reduced 2 And (4) the concentration of S.
3. Through setting up wind direction adjusting part, the piston rod of cylinder stretches out, drives to transfer to the rotation that the relative orientation seat of seat carried out certain angle, makes regulation mouth and gas outlet produce certain angle and deflects to change the direction that fuel gas stream got into furnace, make fuel gas stream arrive suitable burning position, carry out abundant burning, further reduce the concentration of the CO reducing atmosphere of water-cooling wall department, and then reach the H to water-cooling wall department 2 And (4) effectively controlling the concentration of S.
Drawings
FIG. 1 is a schematic expanded cross-sectional view of a boiler in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of an adjusting device in an embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of an adjustment device in an embodiment of the present application;
fig. 4 is an exploded view of the impeller and vane assembly of the present embodiment.
Description of reference numerals: 1. a boiler; 11. a left side wall; 12. a right side wall; 13. a region to be tested; 14. monitoring a test point; 15. a front wall; 16. a rear wall; 17. adjusting the position by air distribution; 2. a housing; 21. the inclined surface is open; 3. an inner sleeve; 4. a mixed fuel gas stream inlet pipe; 5. a secondary air inlet pipe; 6. an air volume adjusting component; 61. an impeller; 611. hole turning; 62. a mounting seat; 63. a drive motor; 64. a blade; 65. rotating the ball; 66. a rotating shaft; 67. a micro motor; 7. a wind direction adjustment assembly; 71. an orientation base; 711. an air outlet; 72. a direction adjusting seat; 721. an adjustment port; 73. a cylinder; 8. an air intake passage.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses water wall area H 2 Referring to fig. 1, the method for controlling the S concentration includes:
based on the type of the coal to be fired in the furnace, the sulfur content of the coal to be fired is determined by sampling.
Based on different areas to be detected 13 set on the left side wall 11 and the right side wall 12 of the boiler 1, a plurality of groups of monitoring test points 14 are set in the different areas to be detected 13 for real-time monitoringCO content and H in region 13 to be measured 2 The concentration of S; the area to be measured 13 is provided with a plurality of groups from bottom to top on the side wall of the boiler 1, and the groups respectively correspond to the CO content and the H content at different heights in the hearth 2 And (5) monitoring the S concentration in real time.
Theoretically analyzing the weight ratio of a plurality of influence factors of the boiler 1 subjected to high-temperature corrosion based on a fuzzy analytic hierarchy process; and carrying out system investigation on factors influencing the high-temperature corrosion of the boiler 1, and correspondingly distributing different weights according to a fuzzy analytic hierarchy process.
Based on CO content and H 2 S, real-time monitoring data of concentration, verifying weight accuracy analyzed by a fuzzy analytic hierarchy process theory, and increasing a correction coefficient k value; the method comprises the steps of testing a boiler 1 to be tested, respectively testing single influence factors one by controlling a variable method, sorting, collecting and analyzing a large amount of data obtained by the test, comparing weights analyzed by a fuzzy analytic hierarchy process theory and correcting adaptability, increasing corrected k values, and updating the accuracy of the weights in an iterative mode.
Based on the corrected weight analysis, air distribution adjusting positions 17 are respectively arranged on a front wall 15 and a rear wall 16 of the boiler 1, the air distribution proportion of the boiler 1 is adjusted, namely the air quantity and the direction of air supply into the boiler 1 are adjusted, and the proper air inlet quantity and the proper air inlet direction are controlled through the guidance of the corrected weight, so that the fuel air flow can be more fully combusted, the CO reducing atmosphere at the water-cooled wall is reduced, and the H is indirectly controlled 2 The concentration of S. The air distribution adjusting positions 17 of the boiler 1 are provided with a plurality of groups corresponding to different areas to be measured 13, and adjusting devices on the air distribution adjusting positions 17 of the groups are independently controlled, so that the adjusting effects of high accuracy and pertinence on different heights are achieved.
Based on the corrected weight analysis, the adaptability adjustment is carried out on the types of the furnace-entering combustion coal at different height positions of the boiler 1 by combining the sampling test of the sulfur content of the furnace-entering combustion coal, so that the combustion coal with different sulfur content is correspondingly combusted in the furnace chambers with different heights, a better combustion effect is obtained, and the H at the water-cooled wall area is controlled 2 And (4) generating S.
The embodiment of the application also discloses a water wall area H 2 S is denseThe adjusting devices are arranged in a plurality of numbers, the adjusting devices are respectively and correspondingly arranged at the air distribution adjusting positions 17 on the boiler 1, and the adjusting devices are independently controlled to perform targeted adjustment on air distribution in areas with different heights in the boiler. Referring to fig. 2, the adjusting device includes a housing 2, the housing 2 is a hollow shell structure, and the housing 2 is fixedly connected to an outer wall of the boiler 1 and is communicated with a hearth of the boiler 1.
Referring to fig. 2 and 3, an inner sleeve 3 is centrally arranged in the outer shell 2 in a penetrating manner, and the inner sleeve 3 is fixedly connected with the outer shell 2. One end of the inner sleeve 3, which is far away from the boiler 1, is fixedly connected with a mixed fuel gas flow inlet pipe 4, the mixed fuel gas flow inlet pipe 4 is communicated with an external fan, and the external fan blows fuel gas flow formed by mixing pulverized coal ground by burning coal and primary air into the inner sleeve 3 and penetrates through the inner sleeve 3 to be fed into the boiler 1 for burning and releasing heat.
One side of the inner sleeve 3 is fixedly communicated with a secondary air inlet pipe 5, the secondary air inlet pipe 5 is used for introducing secondary air into the boiler 1, so that the combustion oxygen amount is increased, air flow disturbance is enhanced, and an air volume adjusting assembly 6 is arranged in the secondary air inlet pipe 5.
Referring to fig. 3 and 4, the air volume adjusting assembly 6 includes an impeller 61, the impeller 61 is rotatably disposed inside the secondary air inlet duct, a mounting seat 62 is fixedly connected in the secondary air inlet duct, a driving motor 63 is fixedly connected to the mounting seat 62, the driving motor 63 is in transmission connection with the impeller 61, and the driving motor 63 is used for driving the impeller 61 to rotate. The outside of impeller 61 is connected with blade 64, and blade 64 sets up to cambered surface transition structure, and blade 64 has arranged a plurality of groups along impeller 61's outline circumference, and every group blade 64 rotates with impeller 61 respectively and is connected. One end of the vane 64 is fixedly connected with a rotating ball 65, the outer side wall of the impeller 61 is correspondingly provided with a matched rotating hole 611, and the rotating ball 65 is partially embedded into the rotating hole 611 to rotate. One end of the rotating ball 65 far away from the vane 64 is fixedly connected with a rotating shaft 66, the other end of the rotating shaft 66 is in transmission connection with a micro motor 67, and the micro motor 67 is fixedly connected inside the impeller 61.
After the secondary air enters the secondary air inlet pipe 5, the driving motor 63 drives the impeller 61 to rotate, so that the secondary air is pressurized and flows into the inner sleeve 3 more quickly and stably. The micro motor 67 rotates and adjusts the rotating ball 65 and the blades 64 through the rotating shaft 66, and the gaps between adjacent blades 64 are opened or closed, so that the passing air volume of the secondary air in the secondary air inlet pipe 5 is adjusted.
One end of the inner sleeve 3 facing the boiler 1 is provided with a wind direction adjusting assembly 7, the wind direction adjusting assembly 7 comprises a directional seat 71, the directional seat 71 is fixedly connected to the end of the inner sleeve 3, the directional seat 71 is provided with a through air outlet 711, and the air outlet 711 is communicated with the directional seat 71. The directional seat 71 is of a spherical structure, the direction adjusting seat 72 is sleeved on the outer side of the directional seat 71, the direction adjusting seat 72 is also of a spherical structure, and the direction adjusting seat 72 is in contact rotation connection with the directional seat 71. The direction-adjusting seat 72 is provided with an adjusting port 721, the adjusting port 721 is overlapped with the air outlet 711 and is always communicated with the air outlet 711, and the caliber of the adjusting port 721 is smaller than that of the air outlet 711.
The two sides of the direction-adjusting seat 72 are hinged with air cylinders 73, the air cylinders 73 are fixedly connected in the side wall of the boiler 1 through supporting plates, the air cylinders 73 are used for driving the direction-adjusting seat 72 to rotate at a certain angle relative to the directional seat 71, fuel air flow flows to the directional seat 71 from the inner sleeve 3 and is finally sprayed into the boiler 1 from the adjusting opening 721 of the direction-adjusting seat 72, and the direction of the fuel air flow entering the boiler 1 is changed along with the rotation of the angle of the adjusting opening 721.
Referring to fig. 2 and 3, a gap between the outer shell 2 and the inner sleeve 3 is an air inlet channel 8, the air inlet channel 8 is used for conveying a small amount of air into the boiler 1, one end of the outer shell 2, which is positioned in the boiler 1, is provided with inclined surface openings 21 on two sides, the openings face to water-cooled wall areas on two sides, and after the air enters a hearth, air flow flows towards the positions of the water-cooled walls on two sides, so that the reducing atmosphere of CO at the water-cooled walls is diluted, and H is reduced beneficially 2 The concentration of S.
The implementation principle of the embodiment of the application is as follows: the mixed fuel gas flow composed of the coal dust and the primary air enters the inner sleeve 3 from the mixed fuel gas flow inlet pipe 4 and is finally sprayed into the hearth from the regulating port 721 of the direction regulating seat 72; secondary air enters the inner sleeve 3 from a secondary air inlet pipe 5 and is also sprayed into the hearth from the adjusting port 721. The micro motor 67 controls the secondary air delivery rate of the boiler 1 by rotatably adjusting the adjacent blades 64 to be closed and openedAnd (5) regulating. The cylinder 73 makes the direction of the adjusting port 721 changed by the relative rotation adjustment of the direction adjusting seat 72 and the directional seat 71, thereby realizing the control adjustment of the air intake direction. The adjusting devices are arranged at each air distribution adjusting position 17 of the boiler 1 and are respectively and independently controlled, and the air inlet quantity and the air inlet direction of the boiler 1 are controlled to weaken the reducing atmosphere of CO in the water-cooled wall area, so that H is subjected to 2 The concentration of S plays a role in controlling the decrease.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (10)
1. Water-cooled wall area H 2 The control method of the S concentration is characterized in that: the method comprises the following steps:
sampling and determining the sulfur content of the burning coal based on the type of the burning coal entering the furnace;
based on different areas (13) to be detected set on the boiler (1), the content of CO and H in the areas (13) to be detected are monitored in real time 2 (ii) the concentration of S;
theoretically analyzing the weight ratio of a plurality of influence factors of the boiler (1) subjected to high-temperature corrosion based on a fuzzy analytic hierarchy process;
based on CO content and H 2 S, real-time monitoring data of concentration, verifying weight accuracy analyzed by a fuzzy analytic hierarchy process theory, and increasing a correction coefficient k value;
and setting an air distribution adjusting position (17) based on the corrected weight analysis, and adjusting the air distribution proportion of the boiler (1), namely adjusting the air volume and the direction of the air supply quantity of the boiler (1).
2. The waterwall region H of claim 1 2 The control method of the S concentration is characterized in that: the areas (13) to be measured are arranged at different heights of the boiler (1).
3. A waterwall region H as defined in claim 2 2 The S concentration control method is characterized by comprising the following steps: each area (13) to be measured is correspondingly provided with a plurality of groups of air distribution adjusting positions (17).
4. A waterwall section H according to claim 1 2 The control method of the S concentration is characterized in that: based on the corrected weight analysis, the types of the coal burned by the boiler at different height positions of the boiler (1) are adjusted.
5. Water-cooled wall area H 2 The apparatus for adjusting S concentration according to any one of claims 1 to 4, characterized in that: the adjusting device is arranged at each air distribution adjusting position (17) of the boiler (1), and comprises a shell (2) fixedly connected to the outer wall of the boiler (1) and communicated to the hearth of the boiler (1), an inner sleeve (3) fixedly connected to the shell (2), a mixed fuel air inlet pipe (4) connected to one end, far away from the boiler (1), of the inner sleeve (3), a secondary air inlet pipe (5) communicated to the inner sleeve (3), an air quantity adjusting assembly (6) arranged inside the secondary air inlet pipe (5) and an air direction adjusting assembly (7) arranged at one end, facing the boiler (1), of the inner sleeve (3).
6. A waterwall region H according to claim 5 2 The adjusting device of S concentration, its characterized in that: air regulation subassembly (6) are including rotating impeller (61) of setting in the overgrate air inlet pipe, be connected with a plurality of groups blade (64) on impeller (61), blade (64) distribute along the outline circumference of impeller (61), and every group blade (64) rotates with impeller (61) respectively and is connected.
7. A waterwall region H as defined in claim 6 2 The adjusting device of S concentration, its characterized in that: one end of each blade (64) is fixedly connected with a rotating ball (65), the outer side wall of the impeller (61) is provided with a rotating hole (611), and the rotating holesThe rotary ball (65) is partially embedded into the rotary hole (611), a rotary shaft (66) is fixedly connected to one end, far away from the blade (64), of the rotary ball (65), a micro motor (67) is connected to one end of the rotary shaft (66) in a transmission mode, and the micro motor (67) is fixedly connected to the interior of the impeller (61).
8. A waterwall region H according to claim 6 2 The adjusting device of S concentration, its characterized in that: the blades (64) are arranged in a cambered surface transition structure.
9. A waterwall region H according to claim 5 2 The adjusting device of S concentration, its characterized in that: the wind direction adjusting assembly (7) comprises a directional seat (71) fixedly connected to one end of the inner sleeve (3), the directional seat (71) is of a spherical structure, a penetrating air outlet (711) is formed in the directional seat (71), and the air outlet (711) is communicated with the inner sleeve (3); a direction adjusting seat (72) is rotatably arranged on the outer side of the orientation seat (71), the direction adjusting seat (72) is of a spherical structure, an adjusting port (721) is formed in the direction adjusting seat (72), the caliber of the adjusting port (721) is smaller than that of the air outlet (711), and the adjusting port (721) and the air outlet (711) are arranged in an overlapping manner; and air cylinders (73) are hinged to two sides of the direction adjusting seat (72), and the air cylinders (73) are used for driving the direction adjusting seat (72) and the orientation seat (71) to rotate relatively.
10. A waterwall region H as defined in claim 5 2 The adjusting device of S concentration, its characterized in that: an air inlet channel (8) is arranged between the inner sleeve (3) and the outer shell (2), and one end of the outer shell (2) positioned in the boiler (1) is provided with inclined plane openings (21) at two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211280651.1A CN115711388A (en) | 2022-10-19 | 2022-10-19 | Water-cooled wall area H 2 Method for controlling S concentration and adjusting device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211280651.1A CN115711388A (en) | 2022-10-19 | 2022-10-19 | Water-cooled wall area H 2 Method for controlling S concentration and adjusting device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115978575A (en) * | 2023-03-22 | 2023-04-18 | 临沂银笛机械制造有限公司 | Industrial kiln fuel air-conveying and blowing combustion device |
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2022
- 2022-10-19 CN CN202211280651.1A patent/CN115711388A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115978575A (en) * | 2023-03-22 | 2023-04-18 | 临沂银笛机械制造有限公司 | Industrial kiln fuel air-conveying and blowing combustion device |
| CN115978575B (en) * | 2023-03-22 | 2023-05-23 | 临沂银笛机械制造有限公司 | Industrial kiln fuel air-feeding and blowing combustion device |
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