CN203955054U - Two medium blenders of SCR denitrification apparatus - Google Patents
Two medium blenders of SCR denitrification apparatus Download PDFInfo
- Publication number
- CN203955054U CN203955054U CN201420340780.XU CN201420340780U CN203955054U CN 203955054 U CN203955054 U CN 203955054U CN 201420340780 U CN201420340780 U CN 201420340780U CN 203955054 U CN203955054 U CN 203955054U
- Authority
- CN
- China
- Prior art keywords
- mixing tube
- baffle plate
- ammonia
- blenders
- pipe
- Prior art date
- 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
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 60
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 31
- 238000005452 bending Methods 0.000 claims abstract description 4
- 238000005516 engineering process Methods 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Abstract
The utility model discloses a kind of two medium blenders of SCR denitrification apparatus, comprise that air enters pipe (1), air enters pipe (1) and is communicated with the first mixing tube (4) by the first closing in (2), the first mixing tube (4) rear end is communicated with the second mixing tube (6) by the first enlarging (5) again, and the second mixing tube (6) rear end is connected with escape pipe (8) by the second closing in (7); In described the first mixing tube (4), be provided with ammonia input pipe (3), ammonia input pipe (3) is vertically through the first mixing tube (4), and the ammonia outlet place of ammonia input pipe (3) is for pointing to a bending segment of the first mixing tube (4) rear end.The utility model can mix ammonia and air efficiently, and can effectively improve the uniformity of mixing.
Description
Technical field
The utility model relates to a kind of two medium blenders of SCR denitrification apparatus, belongs to environmental protection equipment technical field.
Background technology
SCR denitration technology is high with its removal efficiency, adapts to current environmental requirement and obtains that power industry is paid much attention to and application widely.In the strict developed country of environmental requirement Germany for example, Japan, the U.S., Canada, Holland, Austria, Sweden, the state SCR denitration technologies such as Denmark be apply at most, one of the most ripe technology.According to the experience of developed country, SCR denitration technology will inevitably become the main denitration technology of China's firepower power station coal-burning boiler and obtain applying more and more widely.SCR system is generally sprayed into system, reactor assembly, economizer bypass, SCR bypass, is detected control system etc. and form by stocking system, ammonia and air hybrid system, the ammonia of ammonia.Liquefied ammonia from liquefied ammonia tank vehicle by the discharging compressor liquefied ammonia storage tank of making a gift to someone, after being evaporated to ammonia, evaporator tank enters people's boiler area by ammonia dashpot and conveyance conduit again, by after evenly mixing with air, by entering SCR inside reactor after control valve adjust flux, react, SCR reactor is arranged at before air preheater, ammonia is above SCR reactor, by a kind of special sprayer unit and flue gas, be uniformly distributed mixing, after mixing, flue gas carries out reduction reaction by catalyst in reactor layer.In this course of work, the mixture homogeneity of ammonia and air is very important to follow-up reduction reaction efficiency.
Utility model content
The purpose of this utility model is, a kind of two medium blenders of SCR denitrification apparatus are provided.It can mix ammonia and air efficiently, and can effectively improve the uniformity of mixing.
The technical solution of the utility model: two medium blenders of SCR denitrification apparatus, be characterized in: comprise that air enters pipe, air enters pipe and is communicated with the first mixing tube by the first closing in, the first mixing tube rear end is communicated with the second mixing tube by the first enlarging again, closes up and be connected with escape pipe by second in the second mixing tube rear end; In described the first mixing tube, be provided with ammonia input pipe, ammonia input pipe is vertically through the first mixing tube, and the ammonia outlet place of ammonia input pipe is for pointing to a bending segment of the first mixing tube rear end.The utility model has formed a circulation duct that caliber constantly changes.
In two medium blenders of above-mentioned SCR denitrification apparatus, in described the second mixing tube, be provided with annulus baffle plate, annulus baffle plate rear end is also provided with circular baffle plate.
In two medium blenders of aforesaid SCR denitrification apparatus, the external diameter of described annulus baffle plate is 2/3rds of the second mixing tube internal diameter, the internal diameter of described annulus baffle plate is 1/3rd of the second mixing tube internal diameter, the external diameter of described circular baffle plate is identical with the external diameter of annulus baffle plate, and the spacing of annulus baffle plate and circular baffle plate is 1/3rd of the second mixing tube internal diameter.
Compared with prior art, the utility model is by repeatedly changing the line size of gas flow warp, make ammonia enter the first mixing tube that caliber is little, when it enters the second mixing tube, caliber becomes suddenly large and produces Venturi effect, ammonia and air be diffusion rapidly in the second mixing chamber, realizes evenly and mixing.The utility model also successively arranges annulus baffle plate and circular baffle plate in the second mixing chamber in addition, and make gas in the second mixing chamber, be divided into a plurality of mutual shocks, can form the tributary of eddy current, thus the mixture homogeneity further promoting.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Being labeled as in accompanying drawing: 1-air enters pipe, 2-first closes up, 3-ammonia input pipe, 4-the first mixing tube, 5-the first enlarging, 6-the second mixing tube, 7-second closes up, 8-escape pipe, 9-annulus baffle plate, 10-circular baffle plate.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further described, but not as the foundation to the utility model restriction.
Embodiment.Two medium blenders of SCR denitrification apparatus, as shown in Figure 1: comprise that air enters pipe 1, air enters pipe 1 and is communicated with the first mixing tube 4 by the first closing in 2, the first mixing tube 4 rear ends are communicated with the second mixing tube 6 by the first enlarging 5 again, and the second mixing tube 6 rear ends are connected with escape pipe 8 by the second closing in 7; In described the first mixing tube 4, be provided with ammonia input pipe 3, ammonia input pipe 3 is vertically through the first mixing tube 4, and the ammonia outlet place of ammonia input pipe 3 is for pointing to a bending segment of the first mixing tube 4 rear ends.In described the second mixing tube 6, be provided with annulus baffle plate 9, annulus baffle plate 9 rear ends are also provided with circular baffle plate 10.The external diameter of described annulus baffle plate 9 is 2/3rds of the second mixing tube 6 internal diameters, the internal diameter of described annulus baffle plate 9 is 1/3rd of the second mixing tube 6 internal diameters, the external diameter of described circular baffle plate 10 is identical with the external diameter of annulus baffle plate 9, and the spacing of annulus baffle plate 9 and circular baffle plate 10 is 1/3rd of the second mixing tube 6 internal diameters.The mist that is arranged so that of annulus baffle plate 9 and circular baffle plate 10 is divided into tributary, Ji road as shown by the arrows in Figure 1, and each tributary, road finally can be clashed into and form eddy current in circular baffle plate 10 rear ends again, thereby again mist is carried out to uniform stirring.
Claims (3)
- Two medium blenders of 1.SCR denitrification apparatus, it is characterized in that: comprise that air enters pipe (1), air enters pipe (1) and is communicated with the first mixing tube (4) by the first closing in (2), the first mixing tube (4) rear end is communicated with the second mixing tube (6) by the first enlarging (5) again, and the second mixing tube (6) rear end is connected with escape pipe (8) by the second closing in (7); In described the first mixing tube (4), be provided with ammonia input pipe (3), ammonia input pipe (3) is vertically through the first mixing tube (4), and the ammonia outlet place of ammonia input pipe (3) is for pointing to a bending segment of the first mixing tube (4) rear end.
- 2. two medium blenders of SCR denitrification apparatus according to claim 1, is characterized in that: in described the second mixing tube (6), be provided with annulus baffle plate (9), annulus baffle plate (9) rear end is also provided with circular baffle plate (10).
- 3. two medium blenders of SCR denitrification apparatus according to claim 2, it is characterized in that: the external diameter of described annulus baffle plate (9) is 2/3rds of the second mixing tube (6) internal diameter, the internal diameter of described annulus baffle plate (9) is 1/3rd of the second mixing tube (6) internal diameter, the external diameter of described circular baffle plate (10) is identical with the external diameter of annulus baffle plate (9), and the spacing of annulus baffle plate (9) and circular baffle plate (10) is 1/3rd of the second mixing tube (6) internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340780.XU CN203955054U (en) | 2014-06-24 | 2014-06-24 | Two medium blenders of SCR denitrification apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340780.XU CN203955054U (en) | 2014-06-24 | 2014-06-24 | Two medium blenders of SCR denitrification apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203955054U true CN203955054U (en) | 2014-11-26 |
Family
ID=51915696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420340780.XU Expired - Lifetime CN203955054U (en) | 2014-06-24 | 2014-06-24 | Two medium blenders of SCR denitrification apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203955054U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107126839A (en) * | 2017-07-01 | 2017-09-05 | 成都国化环保科技有限公司 | A kind of denitrating tower for denitration device line |
| CN107126714A (en) * | 2017-07-01 | 2017-09-05 | 成都国化环保科技有限公司 | A kind of liquid ammonia evaporator for denitration device line |
| CN107138042A (en) * | 2017-07-01 | 2017-09-08 | 成都国化环保科技有限公司 | A kind of flue gas denitrification equipment line |
| CN107138043A (en) * | 2017-07-01 | 2017-09-08 | 成都国化环保科技有限公司 | A kind of flue gas conditioning component for denitration device line |
| CN108138321A (en) * | 2015-10-06 | 2018-06-08 | 株式会社爱发科 | Mixer, vacuum treatment installation |
| CN110237734A (en) * | 2019-06-10 | 2019-09-17 | 中国石油大学(北京) | Gas mixer and emission-control equipment |
| CN110252168A (en) * | 2019-07-15 | 2019-09-20 | 国电龙源节能技术有限公司 | Short mixing is apart from flue spray ammonia static mixing device |
| CN114849510A (en) * | 2022-07-05 | 2022-08-05 | 拓荆科技(北京)有限公司 | Gas mixing device |
-
2014
- 2014-06-24 CN CN201420340780.XU patent/CN203955054U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108138321A (en) * | 2015-10-06 | 2018-06-08 | 株式会社爱发科 | Mixer, vacuum treatment installation |
| CN108138321B (en) * | 2015-10-06 | 2020-03-20 | 株式会社爱发科 | Mixer and vacuum processing apparatus |
| CN107126839A (en) * | 2017-07-01 | 2017-09-05 | 成都国化环保科技有限公司 | A kind of denitrating tower for denitration device line |
| CN107126714A (en) * | 2017-07-01 | 2017-09-05 | 成都国化环保科技有限公司 | A kind of liquid ammonia evaporator for denitration device line |
| CN107138042A (en) * | 2017-07-01 | 2017-09-08 | 成都国化环保科技有限公司 | A kind of flue gas denitrification equipment line |
| CN107138043A (en) * | 2017-07-01 | 2017-09-08 | 成都国化环保科技有限公司 | A kind of flue gas conditioning component for denitration device line |
| CN110237734A (en) * | 2019-06-10 | 2019-09-17 | 中国石油大学(北京) | Gas mixer and emission-control equipment |
| CN110252168A (en) * | 2019-07-15 | 2019-09-20 | 国电龙源节能技术有限公司 | Short mixing is apart from flue spray ammonia static mixing device |
| CN114849510A (en) * | 2022-07-05 | 2022-08-05 | 拓荆科技(北京)有限公司 | Gas mixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |