CN207886957U - A kind of SNCR denitrification spray gun - Google Patents
A kind of SNCR denitrification spray gun Download PDFInfo
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- CN207886957U CN207886957U CN201721748554.5U CN201721748554U CN207886957U CN 207886957 U CN207886957 U CN 207886957U CN 201721748554 U CN201721748554 U CN 201721748554U CN 207886957 U CN207886957 U CN 207886957U
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- gun
- barral
- ammonium hydroxide
- ball valve
- spray gun
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Abstract
The utility model discloses a kind of SNCR denitrification spray guns, including atomizer, blowing plant, reducing agent charging device, barral of a gun and ontology, barral of a gun includes interior gun barrel and outer gun barrel, atomizer is mounted on interior gun barrel top, interior gun barrel sleeve is in outer gun barrel, blowing plant is mounted on barral of a gun, reducing agent charging device is installed on the body, it is provided with flange between ontology and barral of a gun and passes through flanged joint, reducing agent charging device includes the ammonium hydroxide pipeline for being filled with ammonium hydroxide, blowing plant includes the first compressed air line and the second compressed air line and the both sides mounted on ammonium hydroxide pipeline；Have the advantages that atomizing effect is good, penetrability is strong, wide coverage.
Description
Technical field
The utility model is related to SNCR denitration apparatus field, more particularly to a kind of SNCR denitrification spray gun.
Background technology
The SNCR denitrification spray gun overwhelming majority uses twin structure.Front end atomization and rear end atomization can be divided into, at present
Most of engineering all uses rear end atomised form, and rear end atomization refers to atomizing mixer in rear end, and atomization is good to pass through barral of a gun again
It is transported to nozzle to eject, even if nozzle encounters abrasion, does not influence the atomizing effect of spray gun, and the spray tip of front end atomization
The atomizing effect of spray gun can be seriously affected to reduce denitration efficiency by encountering abrasion or blocking.
As shown in figure 3, prior art SNCR spray guns include atomizer, blowing plant 3, reducing agent charging device 4
With ontology 1, ontology 1 includes interior gun barrel 21 and outer gun barrel 22, and atomizer 5 is mounted on 21 top of interior gun barrel, and interior gun barrel 21 is set with
In outer gun barrel 22, blowing plant 3 is mounted on ontology 1, and reducing agent charging device 4 installs 1 end of ontology, existing at present
There is technology nozzle atomization effect bad；Ammonium hydroxide pipeline 41 all the way is needed, desalination water lines 13 increase humidity and could fully be atomized all the way,
Desalination dilutional hyponatremia can make dust cake in its boiler.
Utility model content
The purpose of this utility model is to provide a kind of SNCR denitrification spray gun, and which solve above-mentioned technical problems, have atomization
The advantages of effect is good, penetrability is strong, wide coverage.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of SNCR spray guns, including atomizer, blowing plant, reducing agent charging device, barral of a gun and ontology, barral of a gun
Including interior gun barrel and outer gun barrel, atomizer is mounted on interior gun barrel top, and interior gun barrel sleeve is in outer gun barrel, blowing plant
On barral of a gun, the installation of reducing agent charging device is provided with flange and is connected by flange on the body, between ontology and barral of a gun
It connects, reducing agent charging device includes the ammonium hydroxide pipeline for being filled with ammonium hydroxide, and blowing plant includes the first compressed air line
Both sides with the second compressed air line and mounted on ammonium hydroxide pipeline.
Using above-mentioned technical proposal, spray gun is mounted on boiler wall and horizontal-jet, and the fast dust of flue gas flow rate in boiler
Content is high, and spray gun is needed to have very strong penetrability, and increasing pressure by double blowing plants is atomized, while only with
Ammonium hydroxide all the way avoids in the prior art ammonium hydroxide all the way, and demineralized water is atomized all the way, causes desalination dilutional hyponatremia that can make its boiler
The problem of interior dust cake.
It is filled into spray gun by ammonium hydroxide all the way, then is ejected by blowing plant high-speed compressed air stream, sprayed
The kinetic energy of compressed air is not lost for rifle, therefore the spray gun has the characteristics that strong penetrability, wide coverage, atomization are good, can
It is that ammonium hydroxide reducing agent is fully combined with flue gas, lowers the escaping of ammonia rate to improve denitration efficiency.
Further preferably：Cooling protection pipe is installed between outer gun barrel and interior gun barrel.
Using above-mentioned technical proposal, spray gun is sprayed in denitration pipeline, and the temperature in denitration pipeline is on 1000 degree of left sides
It is right, it is easy to barral of a gun is damaged, therefore, to the temperature for increasing cooling equipment attenuating barral of a gun on barral of a gun, extends the service life of barral of a gun,
In order not to allow cooling equipment not damaged by high temperature, increases cooling protection pipe and cooling equipment is protected, extend cooling equipment
Service life.
Further preferably：Installation set pipe is socketed with outside outer gun barrel.
Using above-mentioned technical proposal, increases the installation external gun barrel of casing and protected, prevent the high temperature in denitration pipeline from burning
Bad outer gun barrel, extends the service life of outer gun barrel.
Further preferably：Quick Release three linked piece is installed, ammonium hydroxide pipeline and the second compressed air line lead to respectively on ontology
Quick Release three linked piece is crossed to connect with ontology.
Using above-mentioned technical proposal, ammonium hydroxide pipeline and the second compressed air hose can quickly be realized by Quick Release three linked piece
Installation, while Quick Release three linked piece includes air filter, pressure reducing valve and oil sprayer composition, and air filter is mainly responsible for filtering
Impurity in compressed air enters interior gun barrel and blocks atomizer, and pressure reducing valve is mainly responsible for control system pressure, and oil sprayer is main
It is responsible for the feeding lubricating of posterior member.
Further preferably：Ammonium hydroxide pipeline includes double end nipple, metal hose, ball valve and check-valves, the outer silk of double end
Connector one end is connected on Quick Release three linked piece, and the double end nipple other end passes through connection by metal hose, check-valves peace with ball valve
Between metal hose and ball valve.
Using above-mentioned technical proposal, when needing to be passed through ammonium hydroxide reducing agent, opens ball valve switch ammonium hydroxide and entered by ball valve
Metal hose, ammonium hydroxide are entered in spray gun by metal hose and are sprayed, and ball valve is closed after the completion of spraying, anti-by check-valves
Only the ammonium hydroxide in spray gun flows back into ammonium hydroxide fluid reservoir.
Further preferably：Second compressed air line includes double end nipple, metal hose, ball valve and check-valves,
Double end nipple one end is connected on Quick Release three linked piece, the double end nipple other end and ball valve by connection by metal hose,
Check-valves is mounted between metal hose and ball valve.
Using above-mentioned technical proposal, it is passed through the ball valve switch for opening the second compressed air hose road after ammonium hydroxide again, opens ball
The air of compression is filled by metal hose in spray gun by valve, increases the pressure of spray gun, and ammonium hydroxide is sprayed by atomizer,
So that the ammonium hydroxide after spraying has wide coverage and penetrability strong, the escaping of ammonia rate is reduced.
It prevents the ammonium hydroxide in spray gun from entering by check-valves and damages blowing plant in blowing plant.
Further preferably：First compressed air line includes double end nipple, metal hose and ball valve, the outer silk of double end
Connector one end is connected on barral of a gun, and the double end nipple other end passes through connection by metal hose with ball valve.
Using above-mentioned technical proposal, after the second compressed air line is opened, then the first compressed air hose road is opened
Air in blowing plant is passed by metal hose in spray gun by ball valve switch, increases the pressure of spray gun, increases spraying
Effect makes spraying have more penetrability.
Further preferably：Cooling protection pipe, barral of a gun and atomizer are made of stainless steel.
Using above-mentioned technical proposal, since barral of a gun is located in denitration pipeline, carried in the flue gas of denitration pipeline
Corrosive gas, it is easy to corrode barral of a gun and atomizer, barral of a gun and atomizer made of rifle stainless steel, Ke Yiqi
To good corrosion resistance, extend the service life of barral of a gun and atomizer.
The cooling protection pipe made of stainless steel has good anti-corrosion effects, and extend cooling protection pipe uses the longevity
Life reduces the turnover rate of cooling protection pipe, reduces the cost.
In conclusion the utility model has the advantages that：
By ammonium hydroxide pipeline all the way, desalination water lines is not being used, can effectively avoid desalination dilutional hyponatremia from making in boiler
Dust cake.
Increase atomisation pressure by using double blowing plants, while spray gun carries out mist using the pressure of ammonium hydroxide itself
Change, ammonia water spray is gone out by double blowing plant high-speed compressed air streams, so that spray gun is had, penetrability is strong, covers model
Enclose wide, atomization more preferably.
Description of the drawings
Fig. 1 is example structure schematic diagram, illustrates the concrete structure of whole device；
Fig. 2 is the partial sectional view of embodiment barral of a gun, illustrates the internal mechanism of barral of a gun；
Fig. 3 is the structural schematic diagram of the embodiment prior art, illustrates the working condition of spray gun in the prior art.
In figure, 1, ontology；2, barral of a gun；21, interior gun barrel；22, outer gun barrel；23, cooling protection pipe；3, blowing plant；
31, the first compressed air line；32, the second compressed air fills road；4, reducing agent charging device；41, ammonium hydroxide pipeline；5, atomization spray
Mouth；6, flange；7, casing is installed；8, Quick Release three linked piece；9, double end nipple；10, metal hose；11, ball valve；12, non-return
Valve；13, desalination water lines.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
A kind of SNCR spray guns spray ammonium hydroxide reducing agent for SNCR denitration and are combined the equipment for carrying out denitration with flue gas.
As shown in Figure 1, it includes ontology 1 and barral of a gun 2, barral of a gun 2 and ontology 1 are connected by flange 6, pass through 6 convenience of flange
Replace the barral of a gun 2 of damage.
（With reference to Fig. 2）Barral of a gun 2 to interior once mounting Zi having installation casing 7, outer gun barrel 22, cooling protection pipe 23 and interior rifle outside
Pipe 21, installation casing 7 prevent the high temperature in denitration pipeline from burning out outer gun barrel 22, extend outer gun barrel 22 for protecting outer gun barrel 22
Service life, spray gun sprays in denitration pipeline, the temperature in denitration pipeline at 1000 degree or so,
It is easy to damage barral of a gun 2, therefore, to the temperature for increasing cooling equipment attenuating barral of a gun 2 on barral of a gun 2, extends barral of a gun 2
Service life increases cooling protection pipe 23 and is protected to cooling equipment, extended in order not to allow cooling equipment not damaged by high temperature
The service life of cooling equipment.
Atomizer 5 is mounted on 21 top of interior gun barrel, and cooling protection pipe 23, barral of a gun 2 and atomizer 5 are by stainless steel
At since barral of a gun 2 is located in denitration pipeline, with some corrosive gases in the flue gas of denitration pipeline, it is easy to rotten
Erosion barral of a gun 2 and atomizer 5, barral of a gun 2 and atomizer 5 made of stainless steel can play good corrosion resistance, prolong
The service life of long barral of a gun 2 and atomizer 5.
The cooling protection pipe 23 made of stainless steel has good anti-corrosion effects, extends making for cooling protection pipe 23
With the service life, the turnover rate of cooling protection pipe 23 is reduced, is reduced the cost.
Reducing agent charging device 4 is installed on ontology 1, reducing agent device includes the ammonium hydroxide pipeline 41 for being filled with ammonium hydroxide,
Blowing plant 3 includes the first compressed air line 31 and the second compressed air line 32 and is mounted on the two of ammonium hydroxide pipeline 41
Side.
Quick Release three linked piece 8 is installed, ammonium hydroxide pipeline 41 and the second compressed air line 32 pass through Quick Release three respectively on ontology 1
Connection part 8 is connect with ontology 1, and ammonium hydroxide pipeline 41 and the second compressed air line 32 can be quickly realized by Quick Release three linked piece 8
Installation, while Quick Release three linked piece 8 includes air filter, pressure reducing valve and oil sprayer composition, and air filter was mainly responsible for
It filters the impurity in compressed air and enters the blocking atomizer 5 of interior gun barrel 21, pressure reducing valve is mainly responsible for control system pressure, oil sprayer
It is mainly responsible for the feeding lubricating of posterior member.
Ammonium hydroxide pipeline 41 and the second compressed air line 32 are all made of double end nipple 9, metal hose 10 and ball valve 11
Respectively with Quick Release three linked piece 8,9 one end of double end nipple is connected on Quick Release three linked piece 8,9 other end of double end nipple with
Ball valve 11 is connected by metal hose 10, is provided with check-valves 12 between metal hose 10 and ball valve 11, on ammonium hydroxide pipeline 41
Check-valves 12 prevents the ammonium hydroxide in spray gun from flowing back into ammonium hydroxide fluid reservoir, pollutes the ammonium hydroxide in ammonium hydroxide fluid reservoir, improves ammonium hydroxide also
The reduction effect of former agent.
Check-valves 12 on second compressed air line 32 prevents the ammonium hydroxide in spray gun from entering damage in blowing plant 3
Bad blowing plant 3.
2 lower section of barral of a gun is equipped with the first compressed air line 31, and the first compressed air line 31 includes double end nipple
9, metal hose 10 and ball valve 11.
Operation principle：When needing to be passed through ammonium hydroxide reducing agent, opens the switch ammonium hydroxide of ball valve 11 and metal is entered by ball valve 11
Hose 10, ammonium hydroxide are entered in spray gun by metal hose 10 and are sprayed, and the ball valve on the second compressed air line 32 is opened
11 switches open ball valve 11 and are filled into the air of compression in spray gun by metal hose 10, increase the pressure of spray gun, by ammonium hydroxide
It is sprayed by atomizer 5, then the ball valve 11 opened on the first compressed air line 31 switchs, it will be empty in blowing plant 3
Gas is passed by metal hose 10 in spray gun.
Have the characteristics that strong penetrability, wide coverage, atomization are good by 3 spray gun of double blowing plants, it can
It is that ammonium hydroxide reducing agent is fully combined with flue gas, lowers the escaping of ammonia rate to improve denitration efficiency.
Only with ammonium hydroxide all the way, avoiding will be also atomized entire spray gun using demineralized water all the way in the prior art, be led
The problem of causing desalination dilutional hyponatremia that can make dust cake in its boiler.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as within the protection scope of the present utility model all protected by Patent Law.
Claims (8)
1. a kind of SNCR denitrification spray gun, including atomizer (5), blowing plant (3), reducing agent charging device (4), barral of a gun
(2) and ontology (1), the barral of a gun (2) include interior gun barrel (21) and outer gun barrel (22), and the atomizer (5) is mounted on interior rifle
(21) top is managed, the interior gun barrel (21) is sleeved in outer gun barrel (22), and the blowing plant (3) is mounted on barral of a gun (2)
On, reducing agent charging device (4) is mounted on ontology (1), and flange (6) is provided between the ontology (1) and barral of a gun (2) and is led to
Cross flange (6) connection, it is characterised in that：The reducing agent charging device (4) includes the ammonium hydroxide pipeline (41) for being filled with ammonium hydroxide,
The blowing plant (3) includes the first compressed air line (31) and the second compressed air line (32) and is mounted on ammonium hydroxide
The both sides of pipeline (41).
2. a kind of SNCR denitrification spray gun according to claim 1, it is characterised in that：The outer gun barrel (22) and interior gun barrel
(21) cooling protection pipe (23) is installed between.
3. a kind of SNCR denitrification spray gun according to claim 2, it is characterised in that：It is socketed with outside the outer gun barrel (22)
Casing (7) is installed.
4. a kind of SNCR denitrification spray gun according to claim 3, it is characterised in that：Quick Release is installed on the ontology (1)
Three linked piece (8), ammonium hydroxide pipeline (41) and the second compressed air line (32) are connected by Quick Release three linked piece (8) and ontology (1) respectively
It connects.
5. a kind of SNCR denitrification spray gun according to claim 4, it is characterised in that：The ammonium hydroxide pipeline (41) includes double end
Nipple (9), metal hose (10), ball valve (11) and check-valves (12), described double end nipple (9) one end are connected to soon
It tears open on three linked piece (8), double end nipple (9) other end is connect with ball valve (11) by metal hose (10), described to stop
Valve (12) is returned to be mounted between metal hose (10) and ball valve (11).
6. a kind of SNCR denitrification spray gun according to claim 5, it is characterised in that：Second compressed air line (32)
Including double end nipple (9), metal hose (10), ball valve (11) and check-valves (12), described double end nipple (9) one end
It is connected on Quick Release three linked piece (8), double end nipple (9) other end is connected with ball valve (11) by metal hose (10)
It connects, the check-valves (12) is mounted between metal hose (10) and ball valve (11).
7. a kind of SNCR denitrification spray gun according to claim 6, it is characterised in that：First compressed air line (31)
Including double end nipple (9), metal hose (10) and ball valve (11), described double end nipple (9) one end is connected to barral of a gun
(2) on, double end nipple (9) other end is connect with ball valve (11) by metal hose (10).
8. a kind of SNCR denitrification spray gun according to claim 7, it is characterised in that：The cooling protection pipe (23), barral of a gun
(2) it is made of stainless steel with atomizer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721748554.5U CN207886957U (en) | 2017-12-14 | 2017-12-14 | A kind of SNCR denitrification spray gun |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721748554.5U CN207886957U (en) | 2017-12-14 | 2017-12-14 | A kind of SNCR denitrification spray gun |
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| CN207886957U true CN207886957U (en) | 2018-09-21 |
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ID=63548794
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| CN201721748554.5U Active CN207886957U (en) | 2017-12-14 | 2017-12-14 | A kind of SNCR denitrification spray gun |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109603542A (en) * | 2018-12-13 | 2019-04-12 | 湖北蔚天环保科技有限公司 | A kind of liquid-phase catalyst spray gun special |
| CN109647320A (en) * | 2019-01-10 | 2019-04-19 | 光大环保能源（江阴）有限公司 | A kind of liquid alkaline deacidification system using pneumatic liquid alkaline spray gun |
| CN110076022A (en) * | 2019-06-05 | 2019-08-02 | 南京凯盛国际工程有限公司 | A kind of adjustable anticlogging spray gun device |
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2017
- 2017-12-14 CN CN201721748554.5U patent/CN207886957U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109603542A (en) * | 2018-12-13 | 2019-04-12 | 湖北蔚天环保科技有限公司 | A kind of liquid-phase catalyst spray gun special |
| CN109647320A (en) * | 2019-01-10 | 2019-04-19 | 光大环保能源（江阴）有限公司 | A kind of liquid alkaline deacidification system using pneumatic liquid alkaline spray gun |
| CN110076022A (en) * | 2019-06-05 | 2019-08-02 | 南京凯盛国际工程有限公司 | A kind of adjustable anticlogging spray gun device |
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