CN212565836U - Flue gas discharging device - Google Patents
Flue gas discharging device Download PDFInfo
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- CN212565836U CN212565836U CN202020998110.2U CN202020998110U CN212565836U CN 212565836 U CN212565836 U CN 212565836U CN 202020998110 U CN202020998110 U CN 202020998110U CN 212565836 U CN212565836 U CN 212565836U
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- connecting section
- linkage segment
- desulfurizing tower
- outer contour
- fume
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Abstract
The utility model provides a smoke discharging equipment, it includes wet-type electrostatic precipitator, wet-type electrostatic precipitator includes dust remover body and first linkage segment. Wherein, the dust remover top is equipped with the link, and the cross-sectional area at first linkage segment top is less than the cross-sectional area of its bottom. The outer contour of the bottom end of the first connecting section of the flue gas discharge device at least comprises a straight line edge, the bottom of the first connecting section is welded on the connecting frame, and the top end of the connecting frame is provided with a plurality of straight line rods arranged side by side; and after the welding is finished, the reinforcing beam is conveniently arranged outside the straight line edge of the first connecting part so as to increase the strength of the connecting frame and the first connecting section and improve the stability of the device.
Description
Technical Field
The utility model relates to a boiler flue gas discharges technical field, concretely relates to flue gas discharging equipment.
Background
At present, in a newly built million units of a thermal power plant, the requirement is met with the standard of ultralow emission. Therefore, a wet-type electric dust remover is added at the rear part of the desulfurizing tower, and the flue gas passes through the wet-type electric dust remover and then is connected into a chimney for emission so as to meet the requirement of ultralow emission. However, due to the scarcity of land resources, during the construction of a power plant, the land resources are saved as much as possible and the space resources are utilized on the premise of meeting the requirement of ultralow emission; secondly, with the progress of the finite element technology, the calculation that the desulfurizing tower, the wet electric dust remover and the chimney are integrated is realized; thirdly, in order to reduce the cost, enterprises must find a way to reduce the system resistance and save energy. In order to achieve the purpose of energy conservation and consumption reduction, enterprises begin to use a device integrating a desulfurizing tower, a wet electric dust collector and a chimney.
The prior art has integrative device of desulfurizing tower, wet-type electrostatic precipitator, chimney, and the device includes wet flue gas desulfurization tower, wet-type electrostatic precipitator and chimney, and wet-type electrostatic precipitator sets up in wet flue gas desulfurization tower upper end, and the chimney is installed in wet-type electrostatic precipitator upper end. Wet-type electrostatic precipitator includes the dust remover body and locates the first linkage segment at dust remover body top, and first linkage segment bottom welded fastening is on the truss at dust remover body top, and the top of truss is many linear rods that set up side by side, and first linkage segment is the round platform type, and its bottom surface with truss connection is circular, and the welding of being not convenient for on the truss of the circular bottom of first linkage segment leads to construction difficulty, cost of labor height.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the inconvenient defect of being connected of first linkage segment and dust remover body among the integrative device of desulfurizing tower, dust remover, chimney among the prior art.
Therefore, the utility model provides a smoke discharging device, include
The wet electric dust collector comprises a dust collector body and a first connecting section, wherein a connecting frame is arranged at the top of the dust collector body;
the cross-sectional area of the top end of the first connecting section is smaller than that of the bottom end of the first connecting section; the outer contour of the bottom end of the first connecting section at least comprises a straight line edge, and the bottom of the first connecting section is welded on the connecting frame.
Optionally, in the above flue gas discharge device, an outer contour of the bottom end of the first connecting section is a polygon.
Optionally, in the above flue gas discharge device, an outer contour of the bottom end of the first connecting section is a regular polygon.
Optionally, in the above flue gas discharge device, the outer contour of the bottom end of the first connecting section is a regular octagon.
Optionally, in the above flue gas discharge device, the cross-sectional area of the first connecting section gradually increases from top to bottom.
Optionally, in the above flue gas discharge device, the connecting frame is a truss, and the top end of the truss is provided with a plurality of linear rods arranged side by side.
Optionally, the smoke discharge device further comprises a chimney, an outer contour of a top end of the first connecting section is circular, and the chimney is arranged on the first connecting section.
Optionally, foretell fume emission device still includes the desulfurizing tower, wet-type electrostatic precipitator sets up the desulfurizing tower upper end.
Optionally, in the above flue gas discharge device, the outer diameter of the dust remover body is larger than the outer diameter of the desulfurizing tower; wet-type electrostatic precipitator still includes the second linkage segment, the second linkage segment is located dust remover body bottom, the diameter of second linkage segment from top to bottom reduces gradually, second linkage segment bottom external diameter with the desulfurizing tower is the same, the second linkage segment is located the desulfurizing tower upper end.
Optionally, in the above flue gas discharge device, the chimney, the wet electric dust collector and the desulfurizing tower are coaxially arranged.
The utility model discloses technical scheme has following advantage:
1. the utility model provides a smoke discharging equipment, including wet-type electrostatic precipitator, wet-type electrostatic precipitator includes dust remover body and first linkage segment. Wherein, the dust remover top is equipped with the link, and the cross-sectional area at first linkage segment top is less than the cross-sectional area of its bottom.
The outer contour of the bottom end of the first connecting section of the smoke discharge device at least comprises a straight line edge, the bottom of the first connecting section is welded on the connecting frame, compared with the structure that the bottom end of the first connecting section is circular, the straight line edge and the connecting frame are easy to butt joint and position, the straight line edge is convenient to weld on the connecting frame, and the cost is saved; and after the welding is finished, the reinforcing beam is conveniently arranged outside the straight line edge of the first connecting part so as to increase the strength of the connecting frame and the first connecting section and improve the stability of the device.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of a flue gas discharge device provided in an embodiment of the present invention;
FIG. 2 is a top view of the first connection segment of FIG. 1;
FIG. 3 is a schematic view of the novel distribution plate of FIG. 1;
description of reference numerals:
11-a dust remover body; 12-a first connection section; 13-a second connection section; 2-a chimney; 3-a desulfurizing tower; 4-novel uniform distribution plate; 41-a first area; 411-first hole; 42-a second region; 421-a second aperture; 4211-first side; 4212-second edge.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Examples
The embodiment provides a flue gas discharge device, as shown in fig. 1, which includes a wet electric dust collector, a chimney 2 and a desulfurizing tower 3. Wherein, wet-type electrostatic precipitator includes dust remover body 11, first linkage segment 12 and second linkage segment 13.
The top of the dust collector body 11 is provided with a connecting frame, for example, the connecting frame is a steel truss, and the top end of the truss is provided with a plurality of linear rods. The cross-sectional area of the first connecting section 12 is gradually increased from top to bottom, referring to fig. 2, the outline of the bottom end of the first connecting section 12 is regular octagon, the outline of the top end of the first connecting section 12 is circular, the bottom end of the first connecting section 12 is welded at the top end of the truss, and the chimney 2 is welded on the first connecting section 12.
Because the top end of the steel truss is provided with the plurality of linear rods, the outer contour of the bottom end of the first connecting section 12 is regular octagon, and each edge of the bottom end of the first connecting section 12 is a linear edge, compared with the structure that the bottom end of the first connecting section 12 is circular, the linear edges and the linear rods at the top of the truss are easy to butt and position, the linear edges are convenient to weld on the connecting frame, and the cost is saved; and after the welding is finished, a reinforcing beam is conveniently arranged outside the straight edge of the first connecting part so as to increase the strength of the connecting frame and the first connecting section 12 and improve the stability of the device.
The outer diameter of the dust remover body 11 is larger than the outer diameter of the chimney 2, the diameter of the chimney 2 is small, the weight is light, and the integral rigidity and stability of the device can be guaranteed. The chimney 2 is connected with the dust remover body 11 through the first connecting section 12, the cross section area of the first connecting section 12 is gradually increased from top to bottom, and the stability is good; when the smoke discharging device works, smoke flows in a one-way mode from bottom to top, the diameter of the dust remover body 11 is larger than that of the chimney 2, and the smoke is gradually collected to the middle part from bottom to top by the first connecting section 12 which is gradually reduced from top to bottom and enters the chimney 2 to be discharged.
The external diameter of dust remover body 11 is greater than the external diameter of desulfurizing tower 3, and dust remover body 11 and desulfurizing tower 3 pass through the second linkage segment and connect. The second linkage segment welds in 11 bottoms on dust remover body, and the round platform of second linkage segment for invering, its diameter from top to bottom dwindles gradually, and second linkage segment bottom external diameter is the same with 3 external diameters of desulfurizing tower, conveniently docks with desulfurizing tower 3, and the second linkage segment welds on desulfurizing tower 3. The chimney 2, the wet electric dust collector and the desulfurizing tower 3 are coaxially arranged.
The chimney 2, the wet electric dust remover and the desulfurizing tower 3 are coaxially arranged, the flue gas flow field is optimal, the integral resistance of the device is small, the flue gas can flow from bottom to top in a one-way mode, and the desulfurizing and dedusting efficiency is high. Chimney 2, wet-type electrostatic precipitator and the vertical integration stack setting of desulfurizing tower 3, the saving land resource.
The smoke discharging device also comprises two novel uniform distribution plates 4 which are arranged in the second connecting section at intervals up and down. As shown in fig. 3, any of the novel distribution plates 4 includes a first region 41 and a second region 42.
The first area 41 is circular, the diameter of the first area 41 is the same as the inner diameter of the desulfurizing tower 3, a plurality of first holes 411 with the same shape and size are uniformly arranged on the first area 41, for example, the cross section of the second hole 421 is square.
The second area 42 is circular and surrounds the first area 41; three circles of second holes 421 are formed in the circumferential direction of the second area 42, the area of a single second hole 421 is larger than that of a single first hole 411, the areas of the second holes 421 located in the same circle are the same, the area of the single second hole 421 is gradually increased from inside to outside, and the second holes 421 located in any circle are evenly distributed on the same circumference to evenly guide the airflow to enter the second area 42.
The cross section of the second hole 421 is an isosceles trapezoid, the second hole 421 comprises a first side 4211 close to the center of the second region 42 and a second side 4212 close to the outer edge of the second region 42, the first side 4211 is a side where the upper base of the trapezoid is located, the second side 4212 is a side where the lower base of the trapezoid is located, the first side 4211 is parallel to the second side 4212, and the length of the second side 4212 is greater than that of the first side 4211. The cross sections of the first hole 411 and the second hole 421 are both polygonal, so that holes can be conveniently opened.
The two waists of the trapezoid are two side edges of the second hole 421, and the distance between the two side edges is gradually increased in the direction from the center of the second region 42 to the outer edge of the second region 42, that is, the lengths of the first edge 4211 and the second edge 4212 are gradually increased from inside to outside in the radial direction, and the second hole 421 is distributed in the radial direction in the second region 42. The area of second hole 421 is crescent and radial from inside to outside, and the air current guide effect is good, can make the air current in the regional 42 more evenly distributed of second, makes the air current get into the dust remover body 11 on upper portion more evenly, further promotes dust removal effect.
When the device works, flue gas enters the second connecting section from the lower desulfurizing tower 3, the diameter of the first area 41 is the same as the inner diameter of the desulfurizing tower 3, and the first holes 411 on the first area are the same in shape and size and are uniformly distributed, so that the airflow can be uniformly distributed in the first area 41; the second area 42 is located outside the inner diameter projection of the desulfurizing tower 3, the second holes 421 are provided with three circles, any circle of the second holes 421 is uniformly surrounded outside the first area 41, the larger the hole is, the smaller the air flow resistance is, the hole opening of the second area 42 is larger than the hole opening of the first area 41, the area of the second hole 421 is gradually increased from inside to outside and is radial, the air flow guiding effect is good, the air flow resistance is reduced from the first area 41 to the second area 42, part of the air flow in the middle can be guided to pass through the novel uniform distribution plate 4 through the second area 42, and part of the air flow passes through the novel uniform distribution plate 4 through the first area 41, so that the air flow is uniformly distributed in the first area 41 and the second area 42; and the air current resistance reduces gradually from inside to outside in second zone 42, makes the air current at the 42 evenly distributed in second zone, makes the flue gas evenly get into the dust remover body 11 on upper portion along the whole face direction of novel equipartition board 4, and the flow field distributes evenly in the dust remover, and the electric field is interior dust electric charge even, and dust collection efficiency is high. Two novel equipartition boards 4 about setting up, the air current guide effect is better, and air current distribution is better even.
As a first alternative embodiment of embodiment 1, the outer contour of the bottom end of the first connecting section 12 may also be another regular polygon, for example, may also be a regular pentagon, a regular hexagon, a regular heptagon, a regular octagon, etc., the cross-sectional area of the first connecting section 12 gradually decreases from bottom to top, and decreases to a circular shape at the top, so as to facilitate fixing the chimney 2 at the top thereof, and ensure the stability.
As a variation, the outer contour of the bottom end of the first connecting section 12 may also be other polygons, such as a trapezoid; or the bottom outer contour of the first connecting section 12 may not be a polygon, as long as it includes at least one straight edge, which facilitates welding the straight edge on the connecting frame, and facilitates construction.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. A flue gas discharge device is characterized by comprising
The wet electric dust collector comprises a dust collector body (11) and a first connecting section (12), wherein a connecting frame is arranged at the top of the dust collector body (11);
the cross-sectional area of the top end of the first connecting section (12) is smaller than that of the bottom end thereof; the outer contour of the bottom end of the first connecting section (12) at least comprises a straight line edge, and the bottom of the first connecting section (12) is welded on the connecting frame.
2. The fume discharge device according to claim 1, characterized in that said first connection section (12) has a polygonal outer contour at its bottom end.
3. The fume discharge device according to claim 2, characterized in that said first connection section (12) has a regular polygon shape in its outer contour at its bottom end.
4. The fume discharge device according to claim 3, characterized in that said first connecting section (12) has a regular octagonal bottom end outer contour.
5. The fume discharge device according to any of the claims 1-4, characterized in that the cross-sectional area of said first connection section (12) is gradually increasing from top to bottom.
6. The fume extractor according to any of the claims 1 to 4, wherein said connecting frame is a truss, the top end of said truss is a plurality of linear rods arranged side by side.
7. The fume exhaust device according to any of the claims 1 to 4, characterized in that it further comprises a chimney (2), the first connecting section (12) being circular in its outer contour at the top end, said chimney (2) being provided on said first connecting section (12).
8. The fume exhaust device according to claim 7, characterized in that it further comprises a desulfurizing tower (3), and said wet electric dust collector is arranged at the upper end of said desulfurizing tower (3).
9. The fume exhaust device according to claim 8, characterized in that the outer diameter of said precipitator body (11) is greater than the outer diameter of said desulfurization tower (3); wet-type electrostatic precipitator still includes second linkage segment (13), the second linkage segment is located dust remover body (11) bottom, the diameter of second linkage segment from top to bottom reduces gradually, second linkage segment bottom external diameter with desulfurizing tower (3) are the same, the second linkage segment is located desulfurizing tower (3) upper end.
10. The fume exhaust device according to claim 8, characterized in that said chimney (2), said wet electric precipitator and said desulfurization tower (3) are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020998110.2U CN212565836U (en) | 2020-06-03 | 2020-06-03 | Flue gas discharging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020998110.2U CN212565836U (en) | 2020-06-03 | 2020-06-03 | Flue gas discharging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212565836U true CN212565836U (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020998110.2U Active CN212565836U (en) | 2020-06-03 | 2020-06-03 | Flue gas discharging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212565836U (en) |
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2020
- 2020-06-03 CN CN202020998110.2U patent/CN212565836U/en active Active
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