CN104190238B - Reverse multiple spot swirl injection denitrification apparatus - Google Patents
Reverse multiple spot swirl injection denitrification apparatus Download PDFInfo
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- CN104190238B CN104190238B CN201410473395.7A CN201410473395A CN104190238B CN 104190238 B CN104190238 B CN 104190238B CN 201410473395 A CN201410473395 A CN 201410473395A CN 104190238 B CN104190238 B CN 104190238B
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- multiple spot
- reverse multiple
- eddy flow
- denitrfying agent
- flow injector
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Abstract
The invention discloses a kind of reverse multiple spot swirl injection denitrification apparatus, this device comprises for the reverse multiple spot eddy flow injector of denitrating flue gas, the exhaust gases passes be connected with outlet side with the inlet end of reverse multiple spot eddy flow injector and the denitrfying agent passage communicated with reverse multiple spot eddy flow injector interior; Multiple cyclone pipe being parallel to reverse multiple spot eddy flow injector axis is provided with in described reverse multiple spot eddy flow injector, each cyclone pipe is equipped with the denitrfying agent import with denitrfying agent channel connection, denitrfying agent import is provided with two laterally zygomorphic inclination spiral boards near reverse multiple spot eddy flow injector inlet end.This device can make flue gas fully mix with denitrfying agent, solves the problem that flue gas removal efficiency is low.
Description
Technical field
The present invention relates to a kind of reverse multiple spot swirl injection denitrification apparatus, belong to flue gas NO_x Reduction by Effective technical field.
Background technology
Current NO
xdischarge capacity and air NO
xthe quick increase of concentration, causes a series of city and regional environment problem, forms huge threat to health and ecological environment.
Domestic and international is at present selective catalytic reduction (SCR method) and SNCR method (SNCR method) to gas denitrifying technology by large-scale industrial application.Selective catalytic reduction is by ammonia (NH
3) etc. reducing agent injection flue mix with flue gas, NH
3can in temperature of telling somebody what one's real intentions are (250-450 ° of C) NO under catalytic condition
xbe reduced to nitrogen, thus make NO in flue gas
xcontent reduces.SNCR method is by ammonia (NH
3) etc. reducing agent spray into the region that temperature is 850 ° of C-1100 ° of C, NH
3with the NO in flue gas
xcarry out SNCR reaction and generate nitrogen and water.At present, all there is flue gas and denitrfying agent undercompounding in these two kinds of gas denitrifying technologies, removes NO
x, SO
xinefficient problem.
Summary of the invention
For the undercompounding existed in existing gas denitrifying technology, problem that flue gas removal efficiency is low, the invention provides a kind of reverse multiple spot swirl injection denitrification apparatus.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of reverse multiple spot swirl injection denitrification apparatus, comprises for the reverse multiple spot eddy flow injector of denitrating flue gas, the exhaust gases passes be connected with outlet side with the inlet end of reverse multiple spot eddy flow injector and the denitrfying agent passage communicated with reverse multiple spot eddy flow injector interior; Multiple cyclone pipe being parallel to reverse multiple spot eddy flow injector axis is provided with in described reverse multiple spot eddy flow injector, each cyclone pipe is equipped with the denitrfying agent import with denitrfying agent channel connection, denitrfying agent import is provided with two laterally zygomorphic inclination spiral boards near reverse multiple spot eddy flow injector inlet end.
Further, described reverse multiple spot eddy flow injector comprises the truncated cone-shaped reducing that the injector body of a hollow cylinder and two are positioned at its two ends, the heavy caliber end of described reducing is connected with injector body, the small-caliber end of described reducing is connected with exhaust gases passes, and bigbore sectional area is greater than or equal to 1.2 times of small-bore sectional area.
Further, the number of described cyclone pipe is 60-100.
Further, the angle of inclination of described inclination spiral board is 45 °.
Further, described denitrfying agent passage comprises a main channel and multiple subchannel be communicated with it, and the quantity of described subchannel is equal with the quantity of cyclone pipe, and each subchannel is all connected with the denitrfying agent import on each cyclone pipe; Main channel is provided with the motor-driven valve of adjustable opening degree.
Further, the two ends of described reverse multiple spot eddy flow injector are parallel with an access path, and described access path is provided with service valve.
Further, the inlet end of described exhaust gases passes and outlet side are equipped with a bypass valve.
Beneficial effect of the present invention: the present invention adopts reverse multiple spot eddy flow injector, is provided with multiple jet pipe in injector, and jet pipe is provided with the opening with denitrfying agent channel connection, is provided with two laterally zygomorphic 45 ° of spiral boards at opening.When making flue gas enter reverse multiple spot eddy flow injector from exhaust gases passes, vacuum is formed at opening part, vacuum makes the Strong oxdiative thing in denitrfying agent passage enter reverse multiple spot eddy flow injector, and mix with flue gas is reverse, form eddy current, thus flue gas is fully mixed with Strong oxdiative thing, accelerate the efficiency of denitration reaction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is cyclone array of figure of the present invention;
Fig. 3 is fundamental diagram of the present invention;
In figure: 1, reverse multiple spot eddy flow injector, 11, cyclone body, 12, reducing, 2, exhaust gases passes,
21, bypass valve, 3, denitrfying agent passage, 31, main channel, 32, subchannel, 33, motor-driven valve, 4, cyclone pipe, 41, denitrfying agent import, 42, inclination spiral board, 5, service conduits, 51, service valve.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further and limit.
As illustrated in fig. 1 and 2, a kind of reverse multiple spot swirl injection denitrification apparatus, comprises for the reverse multiple spot eddy flow injector 1 of denitrating flue gas, the exhaust gases passes 2 be connected with outlet side with the inlet end of reverse multiple spot eddy flow injector 1 and the denitrfying agent passage 3 communicated with reverse multiple spot eddy flow injector 1 inside; The cyclone pipe 4 that 81 are parallel to its axis is provided with in described reverse multiple spot eddy flow injector 1,81 cyclone pipes 4 are arranged in 9*9 array, each cyclone pipe 4 is equipped with the denitrfying agent import 41 be communicated with denitrfying agent passage 3, denitrfying agent import 41 is provided with two laterally zygomorphic inclination spiral boards 42 near reverse multiple spot eddy flow injector 1 inlet end.The angle of inclination of inclination spiral board 42 is 45 °.
In the present embodiment, described reverse multiple spot eddy flow injector 1 comprises the truncated cone-shaped reducing 12 that the injector body 11 of a hollow cylinder and two are positioned at its two ends, the heavy caliber end of described reducing 12 is connected with injector body 11, the small-caliber end of described reducing 12 is connected with exhaust gases passes 2, and bigbore sectional area is greater than or equal to 1.2 times of small-bore sectional area.
In the present embodiment, described denitrfying agent passage 3 comprises a main channel 31 and 81 subchannels be communicated with it 32, and each subchannel 32 is all connected with the denitrfying agent import 41 on each cyclone pipe 4; Main channel 31 is provided with the motor-driven valve 33 of adjustable opener degree, and the opening degree of motor-driven valve 33 is according to the NO in flue gas
x,sO
xconcentration is regulated by PLC master control.
In the present embodiment, the two ends of described reverse multiple spot eddy flow injector 1 are parallel with an access path 5, and described access path 5 is provided with service valve 51.The inlet end of described exhaust gases passes 2 and outlet side are equipped with a bypass valve 21.
Operation principle in embodiment of the present invention: as shown in Figure 3, when denitrification apparatus normally works, two bypass valves 21 are opened, flue gas enters cyclone pipe 4 from exhaust gases passes 2, high flow rate flue gas blocks by inclination spiral board 42, a negative high pressure cyclone is formed between inclination spiral board 42 and injector body 11 outer wall, denitrfying agent import 41 place that this negative high pressure gas is spun on injector body 11 forms a vacuum zone, vacuum zone is brought into denitrfying agent in reverse multiple spot eddy flow injector 2, denitrfying agent and containing NO
x,sO
x, in injector body 11, complete denitration reaction, enter washing link below, reach the object of denitration.During denitrification apparatus maintenance, two bypass valves 21 cut out, and service valve 51 is opened, and overhaul whole denitrification apparatus.
The sectional area of injector body 11 will calculate according to the sectional area of exhaust gases passes 2, requires the sectional area of injector body 11 to be greater than or equals 1.2 times of exhaust gases passes 2 sectional area.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not depart from principle of the present invention in advance under; can also make some improvements and modifications, these improvements and modifications should be considered as protection scope of the present invention.
Claims (7)
1. a reverse multiple spot swirl injection denitrification apparatus, is characterized in that: comprise for the reverse multiple spot eddy flow injector (1) of denitrating flue gas, the exhaust gases passes (2) be connected with outlet side with the inlet end of reverse multiple spot eddy flow injector (1) and the denitrfying agent passage (3) communicated with reverse multiple spot eddy flow injector (1) inside; Multiple cyclone pipe (4) being parallel to its axis is provided with in described reverse multiple spot eddy flow injector (1), each cyclone pipe (4) is equipped with the denitrfying agent import (41) be communicated with denitrfying agent passage (3), denitrfying agent import (41) is provided with two laterally zygomorphic inclination spiral boards (42) near reverse multiple spot eddy flow injector (1) inlet end.
2. reverse multiple spot swirl injection denitrification apparatus according to claim 1, it is characterized in that: described reverse multiple spot eddy flow injector (1) comprises the truncated cone-shaped reducing (12) that the injector body (11) of a hollow cylinder and two are positioned at its two ends, the heavy caliber end of described reducing (12) is connected with injector body (11), the small-caliber end of described reducing (12) is connected with exhaust gases passes (2), and bigbore sectional area is greater than or equal to 1.2 times of small-bore sectional area.
3. reverse multiple spot swirl injection denitrification apparatus according to claim 1 and 2, is characterized in that: the number of described cyclone pipe (4) is 60-100.
4. reverse multiple spot swirl injection denitrification apparatus according to claim 1 and 2, is characterized in that: the angle of inclination of described inclination spiral board (42) is 45 °.
5. reverse multiple spot swirl injection denitrification apparatus according to claim 1 and 2, it is characterized in that: described denitrfying agent passage (3) comprises a main channel (31) and multiple subchannel (32) be communicated with it, the quantity of described subchannel (32) is equal with the quantity of cyclone pipe (4), and each subchannel (32) is all connected with the denitrfying agent import (41) on each cyclone pipe (4); Main channel (31) are provided with the motor-driven valve (33) of adjustable opening degree.
6. reverse multiple spot swirl injection denitrification apparatus according to claim 1 and 2, it is characterized in that: the two ends of described reverse multiple spot eddy flow injector (1) are parallel with an access path (5), and described access path (5) is provided with service valve (51).
7. reverse multiple spot swirl injection denitrification apparatus according to claim 1 and 2, is characterized in that: the inlet end of described exhaust gases passes (2) and outlet side are equipped with a bypass valve (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410473395.7A CN104190238B (en) | 2014-09-17 | 2014-09-17 | Reverse multiple spot swirl injection denitrification apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410473395.7A CN104190238B (en) | 2014-09-17 | 2014-09-17 | Reverse multiple spot swirl injection denitrification apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104190238A CN104190238A (en) | 2014-12-10 |
| CN104190238B true CN104190238B (en) | 2016-03-23 |
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|---|---|---|---|
| CN201410473395.7A Active CN104190238B (en) | 2014-09-17 | 2014-09-17 | Reverse multiple spot swirl injection denitrification apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108479325A (en) * | 2018-05-16 | 2018-09-04 | 山东志伟环保科技有限公司 | A kind of mixing arrangement of oxidation and denitration |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2889465Y (en) * | 2006-04-29 | 2007-04-18 | 孙克勤 | Enforced mixing device for preventing wear and vortex street for ammonia-spraying grid |
| US7824636B1 (en) * | 2009-07-24 | 2010-11-02 | General Electric Company | Model-based tuning of ammonia distribution and control for reduced operating cost of selective catalytic reduction |
| CN102166472A (en) * | 2011-02-25 | 2011-08-31 | 中环（中国）工程有限公司 | Spiral-flow type ammonia spraying device used for selective catalytic reduction (SCR) denitrification system |
| JP4959232B2 (en) * | 2006-06-12 | 2012-06-20 | 三浦工業株式会社 | Mixing accelerator for denitration apparatus and denitration apparatus having the same |
| CN204134468U (en) * | 2014-09-17 | 2015-02-04 | 山东志伟电子科技有限公司 | Reverse multiple spot swirl injection denitrification apparatus |
-
2014
- 2014-09-17 CN CN201410473395.7A patent/CN104190238B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2889465Y (en) * | 2006-04-29 | 2007-04-18 | 孙克勤 | Enforced mixing device for preventing wear and vortex street for ammonia-spraying grid |
| JP4959232B2 (en) * | 2006-06-12 | 2012-06-20 | 三浦工業株式会社 | Mixing accelerator for denitration apparatus and denitration apparatus having the same |
| US7824636B1 (en) * | 2009-07-24 | 2010-11-02 | General Electric Company | Model-based tuning of ammonia distribution and control for reduced operating cost of selective catalytic reduction |
| CN102166472A (en) * | 2011-02-25 | 2011-08-31 | 中环（中国）工程有限公司 | Spiral-flow type ammonia spraying device used for selective catalytic reduction (SCR) denitrification system |
| CN204134468U (en) * | 2014-09-17 | 2015-02-04 | 山东志伟电子科技有限公司 | Reverse multiple spot swirl injection denitrification apparatus |
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| CN104190238A (en) | 2014-12-10 |
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Address after: 250000 room 2-305, 7 Xintiandi Plaza, No. 61-11 Industrial South Road, Ji'nan, Shandong. Patentee after: SHANDONG ZHIWEI ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: 250100 room 1-220, building 1, No. 322, Shunfeng Road, high tech Zone, Jinan City, Shandong Province Patentee before: SHANDONG ZHIWEI SCIENCE AND TECHNOLOGY Co.,Ltd. |
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Denomination of invention: Reverse multipoint swirl jet denitration device Effective date of registration: 20210918 Granted publication date: 20160323 Pledgee: Ji'nan rural commercial bank Limited by Share Ltd. high tech branch Pledgor: SHANDONG ZHIWEI ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Registration number: Y2021370000111 |
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