CN109925801B - Mechanical rotary turbulence device - Google Patents
Mechanical rotary turbulence device Download PDFInfo
- Publication number
- CN109925801B CN109925801B CN201910189372.6A CN201910189372A CN109925801B CN 109925801 B CN109925801 B CN 109925801B CN 201910189372 A CN201910189372 A CN 201910189372A CN 109925801 B CN109925801 B CN 109925801B
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- CN
- China
- Prior art keywords
- spoiler
- chimney
- flue gas
- mechanical rotary
- wall
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000003546 flue gas Substances 0.000 claims abstract description 58
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 2
- 239000000779 smoke Substances 0.000 abstract description 12
- 230000002087 whitening effect Effects 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008676 import Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009792 diffusion process Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000006477 desulfuration reaction Methods 0.000 description 4
- 230000023556 desulfurization Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
A mechanical rotary turbulent flow device comprises a chimney for discharging flue gas. The top of the chimney is provided with a smoke outlet, and the lower part of the chimney is provided with a smoke inlet. The inside of chimney sets firmly the spoiler, the spoiler sets firmly in the top of flue gas import. The beneficial effects are that: the flue gas spirally rises in the chimney, so that the travel of the flue gas is prolonged; the centrifugal force generated by rotation is helpful for the collision and increase of the precipitated liquid drops in the flue gas, and the liquid drops are separated from the flue gas and then flow down along the wall surface of the chimney; meanwhile, the smoke at the outlet of the chimney is rotary jet flow, so that the diffusion is enhanced, the effect of eliminating white smoke plume is enhanced, and the whitening effect is achieved while energy is saved.
Description
Technical Field
The invention relates to the technical field of air pollution treatment, in particular to a mechanical rotary turbulent flow device.
Background
At present, limestone-gypsum wet desulfurization technology is mostly adopted in desulfurization systems in ultralow emission engineering of coal-fired power plants in China, and the flue gas is saturated wet flue gas after passing through a desulfurization tower, and the temperature of the flue gas is between 45 and 55 ℃. In the process that the flue gas is discharged into the atmosphere through the chimney mouth, the temperature is reduced, partial vaporous water and pollutants in the flue gas can be condensed, and then vaporous water vapor is formed through the chimney mouth, and the vaporous water vapor can be subjected to fine change of color due to background sky color, sky illumination, observation angle and other reasons, so that a colored smoke plume is formed. "colored plumes" are typically white, and "visual pollution" caused by white plumes has become a focus of public attention. In addition, the wet flue gas takes away a large amount of water, which causes waste of water resources, so that a key technology for solving the problems of flue gas whitening and water collection is needed.
The Chinese patent document with publication number CN 207941373U discloses a wet desulfurization flue gas condensation reheating white smoke elimination system, which utilizes a corrosion-resistant flue gas heat exchanger made of special composite materials, a flue gas heat exchanger is arranged at an outlet flue of a desulfurizing tower, the flue gas heat exchanger is divided into two stages, the first stage is used for recovering flue gas waste heat to form condensed water, the second stage is used for reheating the flue gas, and the flue gas temperature is improved. The temperature of the flue gas is increased to an unsaturated state point, and the moisture in the flue gas can not be condensed into small liquid drops, so that the purpose of eliminating white smoke plumes is achieved. However, the flue gas reheater in the system needs to consume a large amount of high-quality heat medium, which causes a large consumption of energy.
The publication day is 2018, 10 months and 16 days, and the Chinese patent literature with publication number CN 108662601A discloses a chimney inner wall flue gas guiding device, including a chimney cylinder wall for discharging heat-releasing flue gas, a plurality of layers of lower layer guide plates fixedly connected with the lower part of the chimney cylinder wall and a plurality of layers of upper layer guide plates fixedly connected with the upper part of the chimney cylinder wall, a flue gas inlet is formed in the lower part of the chimney cylinder wall, a flue gas outlet is formed in the top of the chimney cylinder wall, the lower layer guide plates and the upper layer guide plates are vertically and fixedly connected with the chimney cylinder wall, and the lower layer guide plates and the upper layer guide plates incline along the vertical direction. The invention realizes the secondary whitening treatment of the flue gas and effectively avoids the generation of the flue gas plume. However, the device can not make the flue gas generate strong rotating air flow, so that the generated small centrifugal force can not effectively separate condensed liquid drops in the flue gas, and the effect of flue gas whitening is not obvious.
Disclosure of Invention
The invention aims to solve the defect of high energy consumption in the existing flue gas whitening technology and provides an auxiliary flue gas whitening mechanical rotary flow-around device.
The technical scheme adopted by the invention is as follows: a mechanical rotary turbulent flow device comprises a chimney for discharging flue gas. The top of the chimney is provided with a smoke outlet, and the lower part of the chimney is provided with a smoke inlet. The inside of chimney sets firmly the spoiler, the spoiler sets firmly in the top of flue gas import.
According to the invention, the stroke of the flue gas in the chimney is prolonged by the spoiler, and the liquid drops are separated from the flue gas, so that the problem of large energy consumption in the existing flue gas whitening technology can be effectively solved as a whole, and the flue gas whitening device is an excellent spoiler.
Preferably, the spoiler rises in a spiral mode, the spiral direction of the spoiler is right-handed or left-handed, the axial distances of any two adjacent circles of corresponding points on the spoiler are equal, and the distance is 2-5 times of the width of the spoiler. The preferable scheme has reasonable structure and good use effect.
Preferably, a plurality of fixing pieces are arranged between the spoiler and the inner wall of the chimney, and the spoiler is fixedly connected with the inner wall of the chimney through the fixing pieces. According to the preferred scheme, the disturbance degree of the smoke can be increased, and the working effect of the invention is improved. Further preferably, the fixing members are arranged in equal intervals with reference to the center of the spoiler; the outer diameter of the bottom of the spoiler is 1/3 to 2/3 of the inner diameter of the same section of the chimney; further preferred proposal has reasonable and stable structure and easy processing and manufacturing. Still more preferably, the fixing piece is a round tube or a square tube; the preferable scheme has wide material sources, easy processing and manufacturing and high structural stability.
Preferably, the wall thickness of the spoiler is 3 mm or more. The preferable scheme has high structural stability and long service life.
Preferably, the vertical center line of the spoiler coincides with the vertical center line of the chimney, and the distance between the plane where the bottom of the spoiler is located and the plane where the top of the flue gas inlet is located is less than or equal to 10 millimeters. The preferable scheme has reasonable structure, easy processing and manufacturing and long service life.
Preferably, the spoiler is a truncated cone-shaped spiral spoiler, and a truncated cone waist line of the truncated cone-shaped spiral spoiler is parallel to the inner wall of the chimney. That is, the outer surface of the spoiler is fit with the inner surface of a cone-shaped cylinder, and the spoiler is suitable for being installed in a chimney with a conical inner surface. The optimal scheme has reasonable structure and can effectively improve the working effect of the invention.
The spoiler and the fixing piece are made of stainless steel, so that the service life of the spoiler is prolonged.
In summary, the beneficial effects of the invention are as follows: the flue gas spirally rises in the chimney, so that the travel of the flue gas is prolonged; the centrifugal force generated by rotation is helpful for the collision and increase of the precipitated liquid drops in the flue gas, and the liquid drops are separated from the flue gas and then flow down along the wall surface of the chimney; meanwhile, the smoke at the outlet of the chimney is rotary jet flow, so that the diffusion is enhanced, and the effect of eliminating white smoke plumes is enhanced. The invention can reduce the heating temperature and achieve the whitening effect while saving energy.
Drawings
Fig. 1: a schematic structural diagram of the first embodiment;
fig. 2: schematic top view of the first embodiment;
fig. 3: a schematic structural diagram of the second embodiment;
Fig. 4: schematic top view of embodiment two;
In the figure: chimney 1, spoiler 2, mounting 3, flue gas import 4, flue gas export 5.
Detailed Description
The technical scheme of the invention is further specifically described below through examples and with reference to the accompanying drawings.
Embodiment one:
As shown in fig. 1 and 2, the invention comprises a chimney 1 for discharging flue gas; the top of the chimney 1 is provided with a flue gas outlet 5, and the lower part of the chimney 1 is provided with a flue gas inlet 4. In addition, still include setting firmly the inside stainless steel spoiler 2 of chimney 1, spoiler 2 sets firmly in the top of flue gas import 4, the wall thickness of spoiler 2 is greater than or equal to 3 millimeters. A plurality of fixing pieces 3 are arranged between the spoiler 2 and the inner wall of the chimney 1, the fixing pieces 3 are stainless steel round tubes, the fixing pieces 3 are arranged in an equal division mode by taking the center of the spoiler 2 as a reference, and the spoiler 2 is fixedly connected with the inner wall of the chimney 1 through the fixing pieces 3. And the outer diameter of the bottom of the spoiler 2 is 0.5 of the inner diameter of the same section of the chimney 2. The spoiler 2 rises in a spiral mode, the spiral direction of the spoiler 2 is right-handed or left-handed, the axial distances of the spoiler 2 at any two adjacent circles of corresponding points are equal, and the distance is 2.5 times of the width of the spoiler. The vertical center line of the spoiler 2 coincides with the vertical center line of the chimney 1, and the distance between the plane where the bottom of the spoiler 2 is located and the plane where the top of the flue gas inlet 4 is located is less than or equal to 10 millimeters.
Embodiment two:
As shown in fig. 3 and 4, the main difference between the second embodiment and the first embodiment is that in the second embodiment, the spoiler 2 is a truncated cone-shaped spiral spoiler 2, and the truncated cone waist line of the truncated cone-shaped spiral spoiler 2 is parallel to the inner wall of the chimney 1. The second embodiment is suitable for being installed in a chimney with a conical inner surface.
The above embodiments are merely preferred embodiments of the present invention, and are not intended to limit the specific structures and the scope of the present invention. Indeed, equivalent variations on the shape, construction and design purposes described in accordance with the present invention may be made. Therefore, all changes in shape, structure and design that come within the meaning and range of equivalency of the invention are to be embraced within their scope.
Claims (8)
1. A mechanical rotary turbulent flow device comprises a chimney (1) for discharging flue gas; a flue gas outlet (5) is formed in the top of the chimney (1), and a flue gas inlet (4) is formed in the lower portion of the chimney (1); the method is characterized in that: the flue gas purifying device further comprises a spoiler (2) fixedly arranged in the chimney (1), wherein the spoiler (2) is fixedly arranged above the flue gas inlet (4); the spoiler (2) rises in a spiral mode, a plurality of fixing pieces (3) are arranged between the spoiler (2) and the inner wall of the chimney (1), and the spoiler (2) is a truncated cone-shaped spiral spoiler (2); the vertical center line of the spoiler (2) coincides with the vertical center line of the chimney (1), and the truncated cone waist line of the truncated cone-shaped spiral spoiler (2) is parallel to the inner wall of the chimney (1).
2. The mechanical rotary spoiler according to claim 1, characterized in that: the spiral direction of the spoiler (2) is right-handed or left-handed, the axial distances of the spoiler (2) at any two adjacent circles of corresponding points are equal, and the distance is 2-5 times of the width of the spoiler.
3. The mechanical rotary spoiler according to claim 1, characterized in that: the spoiler (2) is fixedly connected with the inner wall of the chimney (1) through a fixing piece (3).
4. A mechanical rotary spoiler according to claim 3, characterized in that: the fixing pieces (3) are arranged in equal intervals by taking the center of the spoiler (2) as a reference.
5. A mechanical rotary spoiler according to claim 3, characterized in that: the outer diameter of the bottom of the spoiler (2) is 1/3 to 2/3 of the inner diameter of the same section of the chimney (1).
6. A mechanical rotary spoiler according to claim 3, characterized in that: the fixing piece (3) is a round pipe or a square pipe.
7. The mechanical rotary spoiler according to claim 1, characterized in that: the wall thickness of the spoiler (2) is more than or equal to 3 mm.
8. The mechanical rotary spoiler according to claim 1, characterized in that: the distance between the plane of the bottom of the spoiler (2) and the plane of the top of the flue gas inlet (4) is less than or equal to 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910189372.6A CN109925801B (en) | 2019-03-13 | 2019-03-13 | Mechanical rotary turbulence device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910189372.6A CN109925801B (en) | 2019-03-13 | 2019-03-13 | Mechanical rotary turbulence device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109925801A CN109925801A (en) | 2019-06-25 |
| CN109925801B true CN109925801B (en) | 2024-07-19 |
Family
ID=66986982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910189372.6A Active CN109925801B (en) | 2019-03-13 | 2019-03-13 | Mechanical rotary turbulence device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109925801B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203999530U (en) * | 2014-08-15 | 2014-12-10 | 永胜县益农新能源开发有限公司 | Wood tar oil wood vinegar tripping device |
| CN108993032A (en) * | 2018-07-26 | 2018-12-14 | 山西省机电设计研究院 | Wet plume condensation is centrifugal to take off white device |
| CN210278527U (en) * | 2019-03-13 | 2020-04-10 | 浙江浩普环保工程有限公司 | Mechanical rotation vortex device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2111414C1 (en) * | 1996-04-05 | 1998-05-20 | Курский государственный технический университет | Chimney stack cleaner |
| DE50210375D1 (en) * | 2001-01-18 | 2007-08-09 | Alstom Power Boiler Gmbh | BURNER FOR BURNING DUST-CONTAINED FUEL |
| CN205002135U (en) * | 2015-04-16 | 2016-01-27 | 北京博朗环境工程技术股份有限公司 | Cigarette tower unification wet flue gas desulfurization eliminates tornado steel stack of " gypsum rain " |
| CN204815972U (en) * | 2015-07-30 | 2015-12-02 | 中电投远达环保工程有限公司 | Degree of depth dust removal defogging device |
-
2019
- 2019-03-13 CN CN201910189372.6A patent/CN109925801B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203999530U (en) * | 2014-08-15 | 2014-12-10 | 永胜县益农新能源开发有限公司 | Wood tar oil wood vinegar tripping device |
| CN108993032A (en) * | 2018-07-26 | 2018-12-14 | 山西省机电设计研究院 | Wet plume condensation is centrifugal to take off white device |
| CN210278527U (en) * | 2019-03-13 | 2020-04-10 | 浙江浩普环保工程有限公司 | Mechanical rotation vortex device |
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| Publication number | Publication date |
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| CN109925801A (en) | 2019-06-25 |
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