CN204201916U - A kind of power-plant flue gas discharge flue - Google Patents
A kind of power-plant flue gas discharge flue Download PDFInfo
- Publication number
- CN204201916U CN204201916U CN201420666932.5U CN201420666932U CN204201916U CN 204201916 U CN204201916 U CN 204201916U CN 201420666932 U CN201420666932 U CN 201420666932U CN 204201916 U CN204201916 U CN 204201916U
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- flue gas
- flue
- chimney
- shunting section
- deflector
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Abstract
The utility model discloses a kind of power-plant flue gas discharge flue, belong to chimney of electric plant field, it comprises chimney urceolus, chimney internal cylinder and gas approach, and described chimney internal cylinder comprises two outlet conduits; Described gas approach is connected with one end of chimney internal cylinder; Described gas approach is divided into changeover portion and flue gas shunting section, and flue gas shunting section is positioned at the one end near outlet conduit; Described changeover portion is positioned at the other end of flue gas shunting section; Deflector is provided with in described flue gas shunting section; Described deflector is between two outlet conduits.The utility model can reduce cigarette wind flow resistance, reduces air-introduced machine load, reduces costs, substantially increase coal steam-electric plant smoke discharge efficiency.
Description
Technical field
The utility model belongs to chimney of electric plant field, specifically, relates to a kind of power-plant flue gas discharge flue.
Background technology
Current thermal power plant fume emission flue adopts two entrance structure, and when only having an air-introduced machine job, cigarette wind must be shunted, and reduces cigarette wind pressure, and cigarette wind flow speed slows down, and efficiency reduces; And due to chimney gas approach narrow and small, cigarette wind flow resistance is large, and blower fan load increases, and operating cost improves.
China Patent No. 201420198335.4, publication date on September 10th, 2014, disclose a kind of thermal power plant two-tube chimney gas approach structure, this patent comprises straight length, described straight length connects an elbow, elbow connects a changeover portion, and changeover portion connects non-metal compensator, establishes fan-shaped guide vane in elbow.This utility model reduces threeway section, extension diameter section and longer straight length, directly be connected with the vertical pipeline section of chimney by one group of elbow changeover portion, this structure not only optimizes the flow field in air channel, reduce SR, shorten the distance between external equipment and chimney greatly simultaneously, according to wet desulfurizing process, at least 10m distance can be reduced, replace the structure of original shaped piece, do not increase and take up an area space, fan-shaped guide vane is increased by inside, for the flowing of rectification road in-vivo medium, reduce vibration and the resistance of cigarette air channel body, consume energy little, system high efficiency, energy-conservation.But this utility model adopts two entrance structure, must shunt, add pipeline at single air-introduced machine situation lower fume, reduce flowing flue gas pressures, reduce cigarette wind circulation speed, flue entrance is narrow and small simultaneously, increase smoke flow resistance, indirectly add air-introduced machine load.
China Patent No. 201420181077.9, publication date on October 8th, 2014, disclose a kind of bielliptic(al) disjunctor chimney, it comprises elliptic cross-section armored concrete cylindrical shell, two elliptic cross-section armored concrete cylindrical shells are arranged side by side along ellipse short shaft direction, the long and short shaft size of elliptic cross-section strengthens from top to bottom gradually by same ratio, and two elliptic cross-section armored concrete cylindrical shells are connected along cylindrical shell direction by least one armored concrete linking beam.Along the short-axis direction of oval cylindrical shell, with armored concrete linking beam, two oval armored concrete cylindrical shells are linked to be an entirety, the use of linking beam simultaneously also can reduce the lateral displacement of structure; The sectional dimension of bielliptic(al) disjunctor chimney strengthens from top to bottom gradually along chimney height direction, and section rigidity also progressively improves from top to bottom, reasonable stress; Relative ad eundem unit traditional double steel inner cylinder sleeve chimney, floor space is little; The oval disjunctor chimney of continuous placing avoids the problem of Steel Inner Core of Chimney interface expansion.But this utility model gas approach place arranges two entrance structure, must shunt, must set up pipeline, reduce operating efficiency, add construction cost at single air-introduced machine situation lower fume.
Summary of the invention
The problem that 1, will solve
Be two entrance structures for existing thermal power plant chimney gas approach, the problem that complex structure, construction cost are high, flue gas resistance is large, efficiency is low and cause air-introduced machine load to increase, the utility model provides a kind of power-plant flue gas to discharge flue, single entrance structure is set, increase flue gas shunting section space, reduce cigarette wind flow resistance, reduce cost, reduce air-introduced machine load, substantially increase coal steam-electric plant smoke discharge efficiency.
2, technical scheme
For solving the problem, the utility model adopts following technical scheme.
A kind of power-plant flue gas discharge flue, comprise chimney urceolus, chimney internal cylinder and gas approach, described chimney internal cylinder comprises two outlet conduits; Described gas approach is connected with one end of chimney internal cylinder; Described gas approach is divided into changeover portion and flue gas shunting section, and flue gas shunting section is positioned at the one end near outlet conduit; Described changeover portion is positioned at the other end of flue gas shunting section; Deflector is provided with in described flue gas shunting section; Described deflector is between two outlet conduits.
Preferably, the cross section of described outlet conduit is circular or oval.
Preferably, the cross section of described gas approach is circular.
Preferably, described flue gas shunting section is circular arc away from the shape of changeover portion one end.
Preferably, described flue gas shunting section and changeover portion are integral type structure.
Preferably, described deflector is wedge shape; The angle of described deflector and gas approach axis 40 °.
Preferably, the length of described deflector equals 1/2 of gas approach internal diameter.
3, beneficial effect
Compared to prior art, the beneficial effects of the utility model are:
(1) the utility model comprises chimney urceolus, chimney internal cylinder and gas approach, and chimney internal cylinder comprises two outlet conduits; Gas approach is connected with one end of chimney internal cylinder; Gas approach is divided into changeover portion and flue gas shunting section, and flue gas shunting section is positioned at the one end near outlet conduit, and gas approach increases, and reduces cigarette wind flow resistance; Changeover portion is positioned at the other end of flue gas shunting section, is conveniently connected with the flue outside chimney and dismantles; Deflector is provided with in flue gas shunting section; Described deflector is between two outlet conduits, and deflector can shunt cigarette wind effectively, and reduces cigarette wind flow resistance, makes cigarette wind flow unimpeded;
(2) cross section of the utility model outlet conduit is circular or oval, and the cross section of gas approach is circular, and Stability Analysis of Structures, saves construction material and space is large;
(3) the utility model flue gas shunting section is circular arc away from the shape of changeover portion one end, effectively reduces cigarette wind flow resistance;
(4) the utility model flue gas shunting section and changeover portion are integral type structure, easily manufactured, and manufacturing cost reduces;
(5) the utility model deflector is wedge shape, the angle of deflector and gas approach axis 40 °, the length of deflector equals 1/2 of gas approach internal diameter, reduce cigarette wind flow resistance to greatest extent, cigarette wind shunting time shorten, the angle 40 ° of deflector and gas approach axis can guarantee that both sides are shunted evenly, reduces internal pressure poor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is side view of the present utility model.
In figure: 1, outlet; 2. flue gas shunting section; 3, chimney urceolus; 4, changeover portion; 5, gas approach; 6, deflector.
Detailed description of the invention
Below in conjunction with specific embodiment, the utility model is described.
Embodiment 1
As depicted in figs. 1 and 2, a kind of power-plant flue gas discharge flue, comprise chimney urceolus 3, chimney internal cylinder and gas approach 5, chimney internal cylinder comprises two outlet conduits 1, and the cross section of outlet conduit 1 is circular; Gas approach 5 is connected with one end of chimney internal cylinder, and the cross section of gas approach 5 is circular; Gas approach 5 is divided into changeover portion 4 and flue gas shunting section 2, and flue gas shunting section 2 and changeover portion 4 are integral type structure; Flue gas shunting section 2 is positioned at the one end near outlet conduit 1; Changeover portion 4 is positioned at the other end of flue gas shunting section 2, and flue gas shunting section 2 is circular arc away from the shape of changeover portion 4 one end; Deflector 6 is provided with in flue gas shunting section 2; Deflector 6 is between two outlet conduits 1, and deflector 6 is wedge shape, and the angle 40 ° of deflector 6 and gas approach 5 axis, gas approach 5 internal diameter is 800mm, and the length of deflector 6 is 400mm.
Specific works process: the flue gas that thermal power plant produces is through air-introduced machine sucking-off, gas approach 5 is entered through changeover portion 4, cigarette wind runs into deflector 6 and shunts rapidly after entering flue gas shunting section 2, part cigarette wind flows out from the outlet conduit 1 near changeover portion 4, another part cigarette wind flows out from the outlet conduit 1 away from changeover portion 4 one end, is finally discharged in air through outlet conduit 1.The speed that cigarette wind flows through from this coal steam-electric plant smoke discharge flue is fast, and flow is large, reduces air-introduced machine load, reduces construction and maintenance cost, substantially increases coal steam-electric plant smoke discharge efficiency.
Embodiment 2
With embodiment 1, difference is: the cross section of outlet conduit 1 is for oval.
Claims (7)
1. a power-plant flue gas discharge flue, comprises chimney urceolus (3), chimney internal cylinder and gas approach (5), it is characterized in that: described chimney internal cylinder comprises two outlet conduits (1); Described gas approach (5) is connected with one end of chimney internal cylinder; Described gas approach (5) is divided into changeover portion (4) and flue gas shunting section (2), and flue gas shunting section (2) is positioned at the one end near outlet conduit (1); Described changeover portion (4) is positioned at the other end of flue gas shunting section (2); Deflector (6) is provided with in described flue gas shunting section (2); Described deflector (6) is positioned between two outlet conduits (1).
2. a kind of power-plant flue gas discharge flue according to claim 1, is characterized in that: the cross section of described outlet conduit (1) is for circular or oval.
3. a kind of power-plant flue gas discharge flue according to claim 1, is characterized in that: the cross section of described gas approach (5) is for circular.
4. a kind of power-plant flue gas discharge flue according to claim 1 or 3, is characterized in that: described flue gas shunting section (2) is circular arc away from the shape of changeover portion (4) one end.
5. a kind of power-plant flue gas discharge flue according to claim 1, is characterized in that: described flue gas shunting section (2) and changeover portion (4) are integral type structure.
6. a kind of power-plant flue gas discharge flue according to claim 1, is characterized in that: described deflector (6) is wedge shape; The angle 40 ° of described deflector (6) and gas approach (5) axis.
7. a kind of power-plant flue gas discharge flue according to claim 6, is characterized in that: the length of described deflector (6) equals 1/2 of gas approach (5) internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420666932.5U CN204201916U (en) | 2014-11-10 | 2014-11-10 | A kind of power-plant flue gas discharge flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420666932.5U CN204201916U (en) | 2014-11-10 | 2014-11-10 | A kind of power-plant flue gas discharge flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204201916U true CN204201916U (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420666932.5U Expired - Fee Related CN204201916U (en) | 2014-11-10 | 2014-11-10 | A kind of power-plant flue gas discharge flue |
Country Status (1)
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| CN (1) | CN204201916U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570914A (en) * | 2016-02-23 | 2016-05-11 | 上海必立建筑工程有限公司 | Double-pipe or multi-pipe type chimney smoke discharging system |
| CN109579034A (en) * | 2018-11-19 | 2019-04-05 | 上海理工大学 | Shunting shutoff type guiding device for shell and tube GGH flue system |
| CN112569774A (en) * | 2020-12-25 | 2021-03-30 | 郑州市天之蓝环保科技有限公司 | Dust-containing flue gas conveying reversing pipeline and dry desulfurization system |
-
2014
- 2014-11-10 CN CN201420666932.5U patent/CN204201916U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570914A (en) * | 2016-02-23 | 2016-05-11 | 上海必立建筑工程有限公司 | Double-pipe or multi-pipe type chimney smoke discharging system |
| CN109579034A (en) * | 2018-11-19 | 2019-04-05 | 上海理工大学 | Shunting shutoff type guiding device for shell and tube GGH flue system |
| CN109579034B (en) * | 2018-11-19 | 2019-12-03 | 上海理工大学 | Shunting shutoff type guiding device for shell and tube GGH flue system |
| CN112569774A (en) * | 2020-12-25 | 2021-03-30 | 郑州市天之蓝环保科技有限公司 | Dust-containing flue gas conveying reversing pipeline and dry desulfurization system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20151110 |
|
| EXPY | Termination of patent right or utility model |