CN203857475U - Guide vane device for wet chimney entry - Google Patents
Guide vane device for wet chimney entry Download PDFInfo
- Publication number
- CN203857475U CN203857475U CN201420248053.0U CN201420248053U CN203857475U CN 203857475 U CN203857475 U CN 203857475U CN 201420248053 U CN201420248053 U CN 201420248053U CN 203857475 U CN203857475 U CN 203857475U
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- China
- Prior art keywords
- chimney
- guide vane
- wet
- vance
- guide
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000000779 smoke Substances 0.000 claims abstract description 14
- 239000000428 dust Substances 0.000 claims description 20
- 238000013517 stratification Methods 0.000 claims description 20
- 239000011152 fibreglass Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 abstract 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 25
- 239000003546 flue gas Substances 0.000 description 25
- 239000007788 liquid Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 14
- 239000002253 acid Substances 0.000 description 7
- 239000003595 mist Substances 0.000 description 7
- 238000004062 sedimentation Methods 0.000 description 7
- 238000006477 desulfuration reaction Methods 0.000 description 6
- 230000023556 desulfurization Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000009510 drug design Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 101100433727 Caenorhabditis elegans got-1.2 gene Proteins 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000012252 genetic analysis Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Incineration Of Waste (AREA)
Abstract
The utility model provides a guide vane device for a wet chimney entry. The guide vane device comprises guide vanes and pillars. The guide vanes are arranged at the bottom of the chimney entry. One end of every pillar is fixed on an ash accumulation platform; the other end of each pillar is connected with the corresponding guide vane. The guide vanes and the horizontal section of a chimney form an included angle alpha; the upper surfaces of the guide vanes face a smoke inlet arranged in the bottom of the chimney, so that after entering of smoke, condensate produced by the smoke in the chimney can be collected by an ash accumulation hopper and discharged, and the smoke is prevented from being brought to the air secondarily. The guide vane device with the guide vanes has the advantages that vortex at the bottom of the chimney entry can be effectively avoided, the condensate produced at the bottom of the chimney inlet is trapped and collected and is discharged out of the chimney through the ash accumulation hopper, and the guide vane device is simple in structure, widely applicable, low in energy consumption, low in failure rate, effective in using, safe and reliable, economical and practical, and easy to implement.
Description
Technical field
The utility model relates to wet chimney inlet guide vance device, adopts wet chimney " chimney rain " phenomenon of wet desulfurizing process to administer for industries such as thermal power plant, chemical industry, metallurgy, belongs to Key Environmental Protection technical field.
Background technology
Wet desulfurization of flue gas by limestone-gypsum method technique is that world is applied at most and the most ripe technique, is also the leading technique of domestic thermal power plant desulfurization.Fired power generating unit more than China 300MW exceedes 90% employing wet desulfurization of flue gas by limestone-gypsum method (WFGD) technology, in Limestone-gypsum Wet Flue Gas Desulfurization Process system, absorption tower exit gas temperature is 50 DEG C of left and right, and China's " Coal,steam plant with FGD designing technique code " (DL/T5196-2004) specifies " under design conditions, the flue-gas temperature of desulfurization after funnel entrance generally should reach more than 80 DEG C discharge ", there is a flue gas heat-exchange unit (Gas-gas heater, GGH) so early stage WFGD system of installing is substantially all supporting.But in actual motion, GGH parts there will be the problems such as serious burn into heat exchange element obstruction, affect the safe and stable operation of WFGD system.In view of " Coal,steam plant with FGD designing technique code " " meeting, environmental requirement and chimney and flue have perfect anticorrosion and drainage measure and also can not establish flue gas heat-exchange unit in the time that Technological Economy is more reasonable ", so the later stage WFGD system of design is seldom installed GGH, original WFGD system also starts to cancel GGH device.
In actual moving process, while directly passing through wet chimney discharged to atmosphere without the saturated clean flue gas of WFGD system of GGH, easily produce " chimney rain " or acid mist sedimentation phenomenon, bring new environmental issue.
" chimney rain " or the genetic analysis of acid mist sedimentation phenomenon are as follows:
(1) flue gas carry liquid secretly
Former flue gas washs through spraying layer, and after demister demist, from absorption tower outlet, through connecting flue to the process of chimney top discharge, is less than the drop of 50um diameter, discharges with smoke gas flow.
(2) condensate liquid of flue gas
Former flue gas is through spraying layer washing, and after demister demist, from absorption tower outlet, through connecting flue to the process of chimney lining top discharge, conventionally has the temperature drop of 0.5～1.0 DEG C, thus caused flue gas saturated-condensation produced droplet.
(3) smoke secondary is carried liquid secretly
The drop that the drop of taking away from demister and condensation produce, can be at region clusterings such as chimney/flue inwall, chimney entrance bottoms.Along with the continuous deposition of drop, they just can be subject to the downward pulling force of self gravitation, simultaneously, flue gas also can apply one and the unidirectional pulling force of smoke gas flow to liquid, in the time reaching from the power of flue gas or exceed the adhesive force of drop self gravitation and inner surface, liquid reenters or is entered smoke gas flow and be entrained with chimney by reentrainment.
Chimney entrance polycrystalline substance more complicated, vortex phenomenon ratio is easier to occur, condensate liquid is entered after chimney by flue, due to the impact of eddy current, can assemble in chimney entrance bottom, and easily by reentrainment, larger by the condensing droplet particle diameter carried secretly away, they normally cause the principal element of " chimney rain " or acid mist sedimentation phenomenon.
Conventional wet chimney structure is not mostly considered the wet environment of the meeting eddy generation of chimney entrance bottom and easy dewfall at present, in chimney entrance bottom, guide-vane arrangement is not set yet and avoids vortex phenomenon to produce, and tackles and collect the condensate liquid of generation.
Utility model content
The technical problems to be solved in the utility model is to provide the wet chimney inlet guide vance device that an energy consumption is low, reliability is high, effectively to avoid chimney entrance bottom vortex phenomenon to produce, tackle and collect chimney entrance bottom and produce condensate liquid, and discharge chimney outside by dust stratification funnel, the condensate liquid that effectively solves chimney entrance bottom is carried secretly the problem being drained in atmosphere by smoke secondary, thereby avoids " chimney rain " or the generation of acid mist sedimentation phenomenon near chimney.
In order to solve the problems of the technologies described above, the utility model provides a wet chimney inlet guide vance device, comprise guide vane and pillar, wherein, described guide vane is located at the bottom of chimney porch, and described pillar one end is fixed on dust stratification platform, the other end is connected with described guide vane, and support and fixing described guide vane, described chimney bottom center is also provided with a dust stratification funnel, and described guide vane is between described dust stratification funnel and the entrance of described chimney.
Preferably, described guide vane is fan-shaped.
Preferably, described guide vane is arranged at described chimney bottom, and the upper surface of described guide vane is towards the smoke inlet direction of described chimney bottom.
Preferably, described guide vane and described chimney horizontal cross-section direction are angle α, and the scope of angle α is 0 °≤α≤60 °.
Preferably, described guide vane is 15 ° with the angle α that described chimney horizontal cross-section direction becomes.
Preferably, described guide vane radial width is described Diameter of chimney 1/4 ~ 1/3.
Preferably, described guide vane radial width is described Diameter of chimney 1/3.
Preferably, the material of described guide vane is fiberglass reinforced plastics (FRP).
Preferably, described pillar is cylinder or square body.
Preferably, described pillar height >=500mm.
The wet chimney inlet guide vance device that the utility model provides, for the distinctive structure in chimney entrance bottom, flue gas stream and condensate liquid carrying mode, by rational design one guide-vane arrangement, and be fixed in chimney bottom by pillar, guide vane can directly import chimney by the flue gas that enters chimney, and in chimney bottom center, one dust stratification funnel is set.In this way, can effectively avoid chimney entrance bottom vortex phenomenon to produce, tackle and collect the condensate liquid that chimney entrance bottom produces, discharge chimney outside by dust stratification funnel, the condensate liquid that efficiently solves chimney entrance bottom is carried secretly the problem being drained in atmosphere by smoke secondary, greatly reduce the droplet content in flue gas, thereby effectively avoided " chimney rain " or the generation of acid mist sedimentation phenomenon near chimney.
Compared to existing technology, the wet chimney inlet guide vance device that the utility model provides has following beneficial effect:
(1) simple in structure, be easy to realize, economical and practical.
(2) applied widely: can be widely used in the wet chimney such as concrete, brick inner core.
(3) energy consumption is low, safe and reliable: post facility is safeguarded simple, when system operation also without extra consumed energy.
(4) efficient: can solve near " chimney rain " or the generation of acid mist sedimentation phenomenon of chimney urgently to be resolved hurrily that current desulfuration chimney exists completely or to a certain extent, this wet chimney inlet guide vance device can also solve chimney top ice formation issues to a certain extent in addition.Than domestic other " chimney rain " improvement methods, there is outstanding high efficiency.
Brief description of the drawings
The wet chimney inlet guide vance device front view that Fig. 1 provides for the utility model.
The wet chimney inlet guide vance device top view that Fig. 2 provides for the utility model.
Label declaration: 1-chimney; 2-guide vane; 3-pillar; 4-dust stratification platform; 5-dust stratification funnel.
Detailed description of the invention
For the utility model is become apparent, hereby with a preferred embodiment, and coordinate accompanying drawing 1, Fig. 2 to be described in detail below:
The wet chimney inlet guide vance device front view that Fig. 1 provides for the utility model, described wet chimney inlet guide vance device comprises: guide vane 2 and pillar 3, wherein, guide vane 2 is located at the bottom of chimney 1 porch, one end of pillar 3 is fixed on by the mode that overlaps or build on the dust stratification platform 4 of chimney 1 entrance bottom, and pillar 3 is vertical with dust stratification platform 4, the other end of pillar 3 is connected with the lower surface of guide vane 2, and fixed guide vane 2.The center of chimney 1 bottom is also provided with a dust stratification funnel 5, and guide vane 2 is between dust stratification funnel 5 and the entrance of chimney 1.
The wet chimney inlet guide vance device top view that Fig. 2 provides for the utility model, guide vane 2 is symmetrical arranged in chimney 1 porch, both sides, and the upper surface of guide vane 2 is towards the smoke inlet direction of chimney 1 bottom.The material of guide vane 2 is fiberglass reinforced plastics (FRP), is shaped as fan-shapedly, and each guide vane shows for 2 times to be connected with pillar 3, and the quantity of pillar 3 is no less than 7.Pillar 3 can be cylinder, can be also square body.
Guide vane 2 is angle α with the horizontal direction of chimney 1, and the scope of angle α is 0 °≤α≤60 °, is preferably 15 °.The radial width of guide vane 2 is generally got 1/4 ~ 1/3 of chimney 1 diameter, is preferably 1/3, and its length equates with the chord length of respective sector circular arc.The height of pillar 3 depend on self position and guide vane 2 apart from the distance of chimney 1 entrance bottom dust stratification platform 4, the height >=500mm of pillar 3.
Certainly, the utility model is not as limit, and arranging of guide vane 2 can be adjusted according to the different entrance quantity of chimney 1, as in the time that chimney 1 only has an entrance, a guide vane 2 is set, and its setting principle is same as the previously described embodiments.
The wet chimney inlet guide vance device that the utility model provides, its operation principle is: in the time having flue gas to enter from chimney 1 porch, flue gas can directly enter chimney 1 and upwards flow along the upper surface of guide vane 2, because guide vane 2 has certain distance apart from the dust stratification platform 4 of chimney 1 entrance bottom, avoid flue gas to produce vortex phenomenon in chimney bottom.Meanwhile, flue gas is in uphill process, and the condensate liquid producing can fall into the set dust stratification funnel 5 of chimney 1 bottom centre position, and the condensate liquid that guide vane 2 is tackled, collected also can flow into the dust stratification funnel 5 of chimney entrance bottom centre.The existence of guide vane 2 can stop the follow-up flue gas entering to a certain extent, prevents that follow-up flue gas from entering atmosphere by the condensate liquid reentrainment discharge of chimney bottom.
The wet chimney inlet guide vance device that the utility model provides, for the distinctive structure in chimney entrance bottom, flue gas stream and condensate liquid carrying mode, make rational design, can effectively avoid chimney entrance bottom vortex phenomenon to produce, tackle and collect the condensate liquid that chimney entrance bottom produces, discharge chimney outside by dust stratification funnel, the condensate liquid that efficiently solves chimney entrance bottom is carried secretly the problem being discharged in atmosphere by smoke secondary, greatly reduce the droplet content in flue gas, thereby effectively avoid the generation of near chimney " chimney rain " or acid mist sedimentation phenomenon.
The apparatus structure that the utility model provides is simple, economical and practical, is easy to realize, and result of use is good, is convenient to very much promotion and implementation.
Those skilled in the art can realize and not depart from spirit or scope of the present utility model with many other concrete forms because should be understood that the utility model.Although already described the embodiment of utility model, should understand utility model and should not be restricted to these embodiment, within the utility model spirit and scope that those skilled in the art can define as appended claims, make and changing and amendment.
Claims (10)
1. wet chimney inlet guide vance device, it is characterized in that: comprise guide vane and pillar, wherein, described guide vane is located at the bottom of chimney porch, described pillar one end is fixed on dust stratification platform, and the other end is connected with described guide vane, and supports and fixing described guide vane, described chimney bottom center is also provided with a dust stratification funnel, and described guide vane is between described dust stratification funnel and the entrance of described chimney.
2. according to the wet chimney inlet guide vance device described in claim 1, it is characterized in that: described guide vane is fan-shaped.
3. according to the wet chimney inlet guide vance device described in claim 1, it is characterized in that: described guide vane is arranged at described chimney bottom, and the upper surface of described guide vane is towards the smoke inlet direction of described chimney bottom.
4. according to the wet chimney inlet guide vance device described in claim 1, it is characterized in that: described guide vane and described chimney horizontal cross-section direction are angle α, and the scope of angle α is 0 °≤α≤60 °.
5. according to the wet chimney inlet guide vance device described in claim 4, it is characterized in that: described guide vane is 15 ° with the angle α that described chimney horizontal cross-section direction becomes.
6. according to the wet chimney inlet guide vance device described in claim 1, it is characterized in that: described guide vane radial width is described Diameter of chimney 1/4 ~ 1/3.
7. according to the wet chimney inlet guide vance device described in claim 6, it is characterized in that: described guide vane radial width is described Diameter of chimney 1/3.
8. according to the wet chimney inlet guide vance device described in claim 1, it is characterized in that: the material of described guide vane is fiberglass reinforced plastics.
9. according to the wet chimney inlet guide vance device described in claim 1, it is characterized in that: described pillar is cylinder or square body.
10. according to the wet chimney inlet guide vance device described in claim 1, it is characterized in that: described pillar height >=500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420248053.0U CN203857475U (en) | 2014-05-15 | 2014-05-15 | Guide vane device for wet chimney entry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420248053.0U CN203857475U (en) | 2014-05-15 | 2014-05-15 | Guide vane device for wet chimney entry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203857475U true CN203857475U (en) | 2014-10-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420248053.0U Expired - Lifetime CN203857475U (en) | 2014-05-15 | 2014-05-15 | Guide vane device for wet chimney entry |
Country Status (1)
| Country | Link |
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| CN (1) | CN203857475U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953937A (en) * | 2014-05-15 | 2014-07-30 | 上海迪夫格环境科技有限公司 | Guide vane device at entrance of wet chimney |
| CN109028120A (en) * | 2018-09-25 | 2018-12-18 | 中国船舶重工集团公司第七0三研究所 | A kind of smoke deflector restraint device |
| WO2019103600A1 (en) | 2017-11-27 | 2019-05-31 | Hadek Protective Systems B.V. | Wet stack guide vane having a condensate collector |
-
2014
- 2014-05-15 CN CN201420248053.0U patent/CN203857475U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953937A (en) * | 2014-05-15 | 2014-07-30 | 上海迪夫格环境科技有限公司 | Guide vane device at entrance of wet chimney |
| CN103953937B (en) * | 2014-05-15 | 2017-06-16 | 上海迪夫格环境科技有限公司 | A kind of Wet chimney inlet guide vance device |
| WO2019103600A1 (en) | 2017-11-27 | 2019-05-31 | Hadek Protective Systems B.V. | Wet stack guide vane having a condensate collector |
| NL2019982B1 (en) * | 2017-11-27 | 2019-06-03 | Hadek Protective Systems B V | Wet stack guide vane having a condensate collector |
| CN111405936A (en) * | 2017-11-27 | 2020-07-10 | 哈迪克保护系统有限公司 | Wet stack guide vane with condensate collector |
| CN111405936B (en) * | 2017-11-27 | 2021-12-31 | 哈迪克保护系统有限公司 | Wet stack guide vane with condensate collector |
| US11285416B2 (en) | 2017-11-27 | 2022-03-29 | Hadek Protective Systems B.V. | Wet stack guide vane having a condensate collector |
| CN109028120A (en) * | 2018-09-25 | 2018-12-18 | 中国船舶重工集团公司第七0三研究所 | A kind of smoke deflector restraint device |
| CN109028120B (en) * | 2018-09-25 | 2024-06-11 | 中国船舶重工集团公司第七0三研究所 | Flue gas guide plate restraint device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141001 |
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| CX01 | Expiry of patent term |