CN209108914U - A kind of SNCR spray gun applied to minimum discharge - Google Patents
A kind of SNCR spray gun applied to minimum discharge Download PDFInfo
- Publication number
- CN209108914U CN209108914U CN201821597959.8U CN201821597959U CN209108914U CN 209108914 U CN209108914 U CN 209108914U CN 201821597959 U CN201821597959 U CN 201821597959U CN 209108914 U CN209108914 U CN 209108914U
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- outer tube
- wall
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- head protector
- spray gun
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Abstract
The utility model discloses a kind of SNCR spray guns applied to minimum discharge, including outer tube, the outer sleeve inner wall is socketed with cooling inner tube, the outer tube side wall one is terminated with flange ring, and flange ring sidewall edge position is provided with the equidistant mounting hole being distributed in a ring, described outer tube one end has been bolted head protector, the head protector is provided with screw hole close to outer tube side inner wall middle position, and screw hole inner wall is socketed with exhaust nozzle, described exhaust nozzle one end is spirally connected with cooling inner tube one end, the cooling inner tube is equipped with bending far from exhaust nozzle one end, the outer tube is bolted with gas ammonia mixer far from head protector one end, and gas ammonia mixer is equipped with far from outer tube one end and is flexibly connected cap.The utility model can increase gas ammonia spray area, promote spray effect, guarantee the uniformity of gas ammonia and flue gas mixing, substantially reduce the escaping of ammonia, promote the contact probability of gas ammonia and nitrogen oxides, reduce ammonia volume and save operating cost.
Description
Technical field
The utility model relates to SNCR lance technology field more particularly to a kind of SNCR spray guns applied to minimum discharge.
Background technique
Air contaminant treatment is an importance of environmental protection, and wherein nitrogen oxides (NOx) is an important dirt
Substance is contaminated, administering NOx pollution mainly has SNCR (selective non-catalytic reduction) and SCR (selective catalytic reduction) technology, SNCR
Catalyst and reactor are not needed compared to SCR, investment relatively saves, in medium and small boiler with extensive.But the denitration efficiency of SNCR
Only 30~60%, when reaching 80% or more, the escaping of ammonia index is risen rapidly, and affects its application.And the engineering of SCR technology
It can reach 80~99% using denitration efficiency, but SCR system high construction cost, it takes up a large area, affects it in middle pannikin
Application on furnace.Existing SNCR spray gun sprinkling is uneven, and gas ammonia mixes unevenly in flue gas, and the escaping of ammonia rate is high, uses
SNCR spray gun temperature is higher in journey, so now proposing a kind of SNCR spray gun applied to minimum discharge.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and the one kind proposed is applied to ultralow
The SNCR spray gun of discharge.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of SNCR spray gun applied to minimum discharge, including outer tube, the outer sleeve inner wall are socketed with cooling inner tube,
Outer tube side wall one end is bolted with flange ring, and flange ring sidewall edge position is provided with the equidistant installation being distributed in a ring
Hole, described outer tube one end have been bolted head protector, and the head protector is opened close to outer tube side inner wall middle position
There is screw hole, and screw hole inner wall is socketed with exhaust nozzle, described exhaust nozzle one end is spirally connected with cooling inner tube one end, and the cooling inner tube is remote
It is equipped with bending from exhaust nozzle one end, the outer tube is bolted with gas ammonia mixer far from head protector one end, and gas ammonia mixer is remote
It is equipped with from outer tube one end and is flexibly connected cap, the outer tube side wall is welded with equidistant be obliquely installed close to head protector one end
Branch pipe, and branch pipe is bolted with atomizer far from outer tube one end.
Preferably, the flange ring is provided with annular groove, and annular groove inner wall card close to head protector side fascia edge position
It is connected to ring-shaped rubber pad.
Preferably, the outer tube side wall is bolted with far from head protector one end connects gas nozzle, and connects in gas nozzle inner wall and cooling
It manages and is spirally connected far from exhaust nozzle one end.
Preferably, the housing pipe outer wall and branch pipe outer wall are equipped with erosion resistant coating, and erosion resistant coating is condensed by reinforcement castable
Molding.
Preferably, the outer sleeve inner wall is provided with seal groove at gas ammonia mixer position, and seal groove inner wall is clamped
There is rubber seal.
The utility model has the following beneficial effects:
1. increasing spray area by the branch pipe and atomizer of installation, spray effect is promoted, guarantees that gas ammonia is equal in flue gas
Evenness substantially reduces the escaping of ammonia rate, promotes the contact probability of gas ammonia and gas, saves the dosage of gas ammonia, saves use cost.
2. by the cooling inner tube installed and connecing gas nozzle, it can cool down to spray gun, promote the service life of spray gun, it is high
It is convenient to imitate, and facilitates the activity that uses for promoting gas ammonia, saving use cost.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of SNCR spray gun applied to minimum discharge structural schematic diagram；
Fig. 2 be the utility model proposes a kind of SNCR spray gun outer tube applied to minimum discharge sectional structure signal
Figure.
In figure: 1 be flexibly connected cap, 2 gas ammonia mixers, 3 outer tubes, 4 flange rings, 5 branch pipes, 6 atomizers, 7 head protectors,
8 connect gas nozzle, 9 cooling inner tubes, 10 erosion resistant coatings, 11 exhaust nozzles.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-2, a kind of SNCR spray gun applied to minimum discharge, including outer tube 3,3 inner wall of outer tube are socketed with
Cool down inner tube 9, and 3 side wall one end of outer tube is bolted with flange ring 4, and 4 sidewall edge position of flange ring be provided with it is equidistant in a ring
The mounting hole of distribution, 3 one end of outer tube have been bolted head protector 7, and head protector 7 is among 3 side inner wall of outer tube
Position is provided with screw hole, and screw hole inner wall is socketed with exhaust nozzle 11, and 11 one end of exhaust nozzle is spirally connected with cooling 9 one end of inner tube, in cooling
Pipe 9 is equipped with bending far from 11 one end of exhaust nozzle, and outer tube 3 is bolted with gas ammonia mixer 2 far from 7 one end of head protector, and gas ammonia is mixed
Clutch 2 is equipped with far from 3 one end of outer tube is flexibly connected cap 1, and 3 side wall of outer tube is welded with close to 7 one end of head protector equidistant to incline
The branch pipe 5 being tiltedly arranged, and branch pipe 5 is bolted with atomizer 6 far from 3 one end of outer tube.
In the utility model, flange ring 4 is provided with annular groove close to 7 side fascia edge position of head protector, and in annular groove
Wall is connected with ring-shaped rubber pad, and 3 side wall of outer tube is bolted with far from 7 one end of head protector and connects gas nozzle 8, and connects 8 inner wall of gas nozzle and drop
Warm inner tube 9 is spirally connected far from 11 one end of exhaust nozzle, and 3 outer wall of outer tube and 5 outer wall of branch pipe are equipped with erosion resistant coating 10, and erosion resistant coating 10 by
Reinforce castable condensation molding, 3 inner wall of outer tube is provided with seal groove, and seal groove inner wall card at 2 position of gas ammonia mixer
It is connected to rubber seal.
Working principle: in use, SNCR spray gun is installed to the suitable position of denitrification apparatus by flange ring 4, then gas
Ammonia is entered in outer tube 3 by gas ammonia mixer 2, and under the action of branch pipe 5 and atomizer 6, gas ammonia is sprayed onto cigarette
In gas, while it being passed through cryogenic gas by connecing gas nozzle 8, is sprayed by cooling inner tube 9 by exhaust nozzle 11, take away the temperature of SNCR spray gun
Degree, plays the role of cooling.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (5)
1. a kind of SNCR spray gun applied to minimum discharge, including outer tube (3), which is characterized in that outer tube (3) inner wall
It is socketed with cooling inner tube (9), outer tube (3) side wall one is terminated with flange ring (4), and flange ring (4) sidewall edge position
It is provided with the equidistant mounting hole being distributed in a ring, described outer tube (3) one end has been bolted head protector (7), described anti-
Helmet (7) is provided with screw hole close to outer tube (3) side inner wall middle position, and screw hole inner wall is socketed with exhaust nozzle (11), described
Exhaust nozzle (11) one end is spirally connected with cooling inner tube (9) one end, and the cooling inner tube (9) is equipped with folding far from exhaust nozzle (11) one end
Curved, the outer tube (3) is bolted with gas ammonia mixer (2) far from head protector (7) one end, and gas ammonia mixer (2) is far from housing
It manages (3) one end and is equipped with flexible connection cap (1), outer tube (3) side wall is welded with close to head protector (7) one end and is equidistantly positioned
Branch pipe (5), and branch pipe (5) is bolted with atomizer (6) far from outer tube (3) one end.
2. a kind of SNCR spray gun applied to minimum discharge according to claim 1, which is characterized in that the flange ring
(4) it is provided with annular groove close to head protector (7) side fascia edge position, and annular groove inner wall is connected with ring-shaped rubber pad.
3. a kind of SNCR spray gun applied to minimum discharge according to claim 1, which is characterized in that the outer tube
(3) side wall is bolted with far from head protector (7) one end and connects gas nozzle (8), and connects gas nozzle (8) inner wall and cooling inner tube (9) far from exhaust
Mouth (11) one end is spirally connected.
4. a kind of SNCR spray gun applied to minimum discharge according to claim 1, which is characterized in that the outer tube
(3) outer wall and branch pipe (5) outer wall are equipped with erosion resistant coating (10), and erosion resistant coating (10) is condensed by reinforcement castable and formed.
5. a kind of SNCR spray gun applied to minimum discharge according to claim 1, which is characterized in that the outer tube
(3) inner wall is provided with seal groove at gas ammonia mixer (2) position, and seal groove inner wall is connected with rubber seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821597959.8U CN209108914U (en) | 2018-09-28 | 2018-09-28 | A kind of SNCR spray gun applied to minimum discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821597959.8U CN209108914U (en) | 2018-09-28 | 2018-09-28 | A kind of SNCR spray gun applied to minimum discharge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209108914U true CN209108914U (en) | 2019-07-16 |
Family
ID=67199838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821597959.8U Active CN209108914U (en) | 2018-09-28 | 2018-09-28 | A kind of SNCR spray gun applied to minimum discharge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209108914U (en) |
-
2018
- 2018-09-28 CN CN201821597959.8U patent/CN209108914U/en active Active
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