CN104190238A - Reverse multi-point swirl-injection denitrating device - Google Patents
Reverse multi-point swirl-injection denitrating device Download PDFInfo
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- CN104190238A CN104190238A CN201410473395.7A CN201410473395A CN104190238A CN 104190238 A CN104190238 A CN 104190238A CN 201410473395 A CN201410473395 A CN 201410473395A CN 104190238 A CN104190238 A CN 104190238A
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- multiple spot
- reverse multiple
- eddy flow
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Abstract
The invention discloses a reverse multi-point swirl-injection denitrating device. The reverse multi-point swirl-injection denitrating device comprises a reverse multi-point swirl injector for denitrating flue gas, a flue gas passage communicated with the gas inlet end and the gas outlet end of the reverse multi-point swirl injector, and a denitrating agent passage communicated with the interior of the reverse multi-point swirl injector, wherein a plurality of swirl tubes parallel to the axis of the reverse multi-point swirl injector are arranged inside the reverse multi-point swirl injector; a denitrating agent inlet communicated with the denitrating agent passage is arranged on each swirl tube; two inclined swirl plates which are vertically symmetrical are arranged on the side, near the gas inlet end of the reverse multi-point swirl injector, of each denitrating agent inlet. The reverse multi-point swirl-injection denitrating device can mix the flue gas and the denitrating agent thoroughly, so that the problem that the flue gas removing efficiency is low is solved.
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 atmosphere NO
xthe quick increase of concentration, causes a series of city and regional environment problem, and health and ecological environment are formed to huge threat.
To gas denitrifying technology, by large-scale industrial application, be at present both at home and abroad selective catalytic reduction (SCR method) and SNCR method (SNCR method).Selective catalytic reduction is by ammonia (NH
3) etc. reducing agent injection flue mix with flue gas, NH
3can be in the temperature of telling somebody what one's real intentions are (250-450 ° of C) NO under catalytic condition
xbe reduced to nitrogen, thereby 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 G&W.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 existing 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 the reverse multiple spot eddy flow injector for denitrating flue gas, the exhaust gases passes being connected with inlet end and the outlet side of reverse multiple spot eddy flow injector and the denitrfying agent passage communicating with reverse multiple spot eddy flow injector interior; In described reverse multiple spot eddy flow injector, be provided with a plurality of cyclone pipes that are parallel to reverse multiple spot eddy flow injector axis, on each cyclone pipe, be equipped with the denitrfying agent import with denitrfying agent channel connection, one side denitrfying agent import is near two the laterally zygomorphic inclination spiral boards that are provided with of reverse multiple spot eddy flow injector inlet end.
Further, described reverse multiple spot eddy flow injector comprises injector body and two truncated cone-shaped reducings that are positioned at its two ends of a hollow cylinder, 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 a plurality of subchannel being communicated with it, and the quantity of described subchannel equates with the quantity of cyclone pipe, and each subchannel is all connected with the denitrfying agent import on each cyclone pipe; On main channel, be 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 a plurality of jet pipes in injector is provided with the opening with denitrfying agent channel connection on jet pipe, one side at two the laterally zygomorphic 45 ° of spiral boards that are provided with of opening.While making flue gas enter reverse multiple spot eddy flow injector from exhaust gases passes, at opening part, form vacuum, vacuum makes the strong oxide in denitrfying agent passage enter reverse multiple spot eddy flow injector, and mix with flue gas is reverse, form eddy current, thereby flue gas is fully mixed with strong oxide, 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.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described further and restriction.
As illustrated in fig. 1 and 2, a reverse multiple spot swirl injection denitrification apparatus, comprises the reverse multiple spot eddy flow injector 1 for denitrating flue gas, the exhaust gases passes 2 being connected with inlet end and the outlet side of reverse multiple spot eddy flow injector 1 and the denitrfying agent passage 3 communicating with reverse multiple spot eddy flow injector 1 inside; In described reverse multiple spot eddy flow injector 1, be provided with 81 cyclone pipes 4 that are parallel to its axis, 81 cyclone pipes 4 are arranged in 9*9 array, on each cyclone pipe 4, be equipped with the denitrfying agent import 41 being communicated with denitrfying agent passage 3, one side denitrfying agent import 41 is near two the laterally zygomorphic inclination spiral boards 42 that are provided with of 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 injector body 11 and two truncated cone-shaped reducings 12 that are positioned at its two ends of a hollow cylinder, 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 that are communicated with it 32, and each subchannel 32 is all connected with the denitrfying agent import 41 on each cyclone pipe 4; The motor-driven valve 33 that is provided with adjustable opener degree on main channel 31, 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 is normally worked, two bypass valves 21 are opened, flue gas enters cyclone pipe 4 from exhaust gases passes 2, high flow rate flue gas the blocking of spiral board 42 of being tilted, between inclination spiral board 42 and injector body 11 outer walls, form a negative high pressure cyclone, denitrfying agent import 41 places that this negative high pressure gas is spun on injector body 11 form a vacuum zone, vacuum zone is brought into denitrfying agent in reverse multiple spot eddy flow injector 2, denitrfying agent and contain 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 overhauls 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 areas.
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 the reverse multiple spot eddy flow injector (1) for denitrating flue gas, the exhaust gases passes (2) being connected with inlet end and the outlet side of reverse multiple spot eddy flow injector (1) and the denitrfying agent passage (3) communicating with reverse multiple spot eddy flow injector (1) inside; In described reverse multiple spot eddy flow injector (1), be provided with a plurality of cyclone pipes (4) that are parallel to its axis, on each cyclone pipe (4), be equipped with the denitrfying agent import (41) being communicated with denitrfying agent passage (3), denitrfying agent import (41) near reverse multiple spot eddy flow injector (1) one side inlet end be provided with two laterally zygomorphic inclination spiral boards (42).
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 injector body (11) of a hollow cylinder and the truncated cone-shaped reducing (12) that 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 (42) 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 a plurality of subchannel being communicated with it (32), the quantity of described subchannel (32) equates 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); On main channel (31), be 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), 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 true CN104190238A (en) | 2014-12-10 |
| CN104190238B CN104190238B (en) | 2016-03-23 |
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ID=52075690
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410473395.7A Active CN104190238B (en) | 2014-09-17 | 2014-09-17 | Reverse multiple spot swirl injection denitrification apparatus |
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| CN (1) | CN104190238B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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|---|---|---|---|---|
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| Publication number | Publication date |
|---|---|
| CN104190238B (en) | 2016-03-23 |
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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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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
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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