CN207119483U - Spray gun device used in a kind of SNCR - Google Patents
Spray gun device used in a kind of SNCR Download PDFInfo
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- CN207119483U CN207119483U CN201720980966.5U CN201720980966U CN207119483U CN 207119483 U CN207119483 U CN 207119483U CN 201720980966 U CN201720980966 U CN 201720980966U CN 207119483 U CN207119483 U CN 207119483U
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Abstract
Spray gun device used in SNCR, including gun body are the utility model is related to, gun body is provided with shower nozzle, the adjustable nozzle of spray angle is offered on shower nozzle；The feed tube for extending to gun body outer end is provided with gun body, compressed air channel is formed between feed liquor pipe outer wall and gun body inwall, feed tube is interior formed with reactant channels；Compressed air channel is provided with air inlet, and feed tube is provided with inlet；Shower nozzle is arranged on compressed air channel and reactant channels connectivity part.Nozzle is offered on shower nozzle in the spray gun device, atomised form is changed to sector, ensures that reactant can fully contact with flue gas, increase reaction efficiency, compared with spray pattern of the prior art is tapered, droplet size reduces, quantity increase, total surface area increase, it can fully be reacted with flue gas, reduce NOX discharge, and reduce the use of reactant, processing cost is reduced, is advantageous to popularization and application of the device in field of Environment Protection.
Description
Technical field
It the utility model is related to technical field of environment protection equipment, and in particular to spray gun used in a kind of SNCR fills
Put.
Background technology
With the development of the modern industry, environmental pollution is also with generation, and atmosphere pollution is exactly one kind of environmental pollution,
As the big harm to the mankind.Every material that air quality can be made to degenerate all is atmosphere pollution.Atmosphere pollution at present
It is known to there are about kind more than 100.There is natural cause（Such as forest fire, volcano eruption）And human factor（Such as industrial waste gas, life combustion
Coal, vehicle exhaust, nuclear explosion etc.）Two kinds, and based on the latter, especially caused by industrial production and communications and transportation.Mainly
Process is made up of discharge of pollutant sources, atmospheric propagation, human damage these three links.Influence air pollution range and intensity because
It is known as the property of pollutant（It is physics and chemistry）, the property of pollution sources（Source strength, source are high, temperature, deflation rate etc. in source）,
Meteorological condition（Wind direction, wind speed, temperature lamination etc.）, dune surface characteristics（Hypsography, roughness, mulching material etc.）.Preventing and treating side
Method is a lot, and fundamental way is reform production technology, comprehensive utilization, pollutant is eliminated among production process；In addition, advise comprehensively
Draw, rational deployment, reduce the pollution in the area that is densely populated；In high pollution area, restricting traffic flow；Suitable factory site is selected, design is just
Work as chimney height, reduce ground pollution；Under least favorable meteorological condition, take measures, control the discharge capacity of pollutant.China
Work out《Law of Environmental Protection of the People's Republic of China（It is tentative）》, and " waste gas emission standard " in the common area of national peace is worked out,
To mitigate atmosphere pollution, people's health is protected.It can be divided into two major classes by its existence.One kind is aerosol state pollutant,
Another kind is gaseous state pollutant.Aerosol state pollutant mainly has dust, tobacco juice drop, mist, depositing dust, floating dust, suspension
Deng.Gaseous state pollutant mainly has the oxygen sulfur compound based on sulfur dioxide, the oxynitrides based on nitrogen dioxide,
The hydrocarbon that hydrocarbon and carbon, hydrogen based on carbon dioxide combine.Not only contain inorganic pollution in air, and
And contain organic pollution.As the mankind continually develop new material, the type and quantity of atmosphere pollution are also constantly vary.
Use fossil fuel（Such as coal, oil, natural gas）Boiler can produce substantial amounts of flue gas in use, in flue gas
Contain nitrogen oxides（NOX）Etc. harmful substance, nitrogen oxides is a kind of greenhouse gases, can be damaged the ozone layer.When ammonia is in air
In volumetric concentration when reaching 16-25%, II class inflammable-explosive mixture can be formed, very big hidden danger be present.Nitrogen oxides is arranged
When being put into air, it can produce directly harm to the health of human body, and can participate in forming photochemical fog, form acid rain,
Environment is caused further to damage, endangered to reduce nitrogen oxides to caused by environment and the mankind, country produces to boiler
The concentration of emission of nitrogen oxides in flue gas proposes more stringent requirement.In order to realize the row of nitrogen oxides lower concentration
Put, mitigate and eliminate harm of the nitrogen oxides to the mankind, before boiler smoke is discharged into air, be generally required for by cigarette
Gas denitrification apparatus, so that flue gas meets discharge standard, mitigates environmental pollution to remove most nitrogen oxides in flue gas
The infringement to health is reduced simultaneously.
In denitrating flue gas processing method, SNCR method（That is SNCR methods）It is that one kind does not have to catalyst,
Within the temperature range of 850 ~ 1100 DEG C, by the reactant containing amino（Such as ammoniacal liquor, urea liquid）Spray into stove, in reactant
Nitrogen oxides in the lower flue gas of effect reacts with reduction ammonia, generates harmless N2And water, so as to by the NO in flue gasXReduction
The cleaning denitration technology of removing.
At present, in spray gun device used in the SNCR used, shower nozzle atomization angle is small, can not be by reactant
Fully atomization so that reactant is uneven with smoke contacts, causes reaction efficiency low, to make fume emission reach newest discharge
Index, it is necessary to increase reactant consumption, cause the waste of social resources significantly, and have potential not qualified discharge hidden danger.
Utility model content
The utility model be in order to overcome it is above-mentioned in the prior art the defects of, there is provided used in a kind of SNCR
Spray gun device, the spray gun device can increase the contact area of reactant and flue gas, effectively solve reactant and smoke contacts not
The problem of uniform, reaction rate is improved, reduce NOXConcentration, ensure do not increase reactant consumption on the premise of make
Flue gas meets emission request, reduces fume treatment cost, is advantageous to popularization and application of the spray gun device in field of Environment Protection.
In order to reach object above, technical scheme is used by the utility model：A kind of SNCR institute
With spray gun device, including gun body, the gun body is provided with shower nozzle, the adjustable spray of spray angle is offered on shower nozzle
Mouth；The feed tube for extending to gun body outer end is provided with the gun body, between feed liquor pipe outer wall and gun body inwall
Compressed air channel is formed, the feed tube is interior formed with reactant channels；The compressed air channel is provided with air inlet, institute
State feed tube and be provided with inlet；The shower nozzle is arranged on compressed air channel and reactant channels connectivity part.
As a kind of preferred scheme of the present utility model, the shower nozzle is bulb nut structure, and nozzle is located at cap head center
Opening position.
As a kind of preferred scheme of the present utility model, the nozzle form is that flat is poroid, in fan when reactant sprays
Shape.
As a kind of preferred scheme of the present utility model, the spray angle of the nozzle is at least 60 °.
As a kind of preferred scheme of the present utility model, the compressed air channel end is provided with atomizing piece, the atomization
The hybrid channel passed through for compressed air and reactant is formed among piece.
As a kind of preferred scheme of the present utility model, gun body and the shower nozzle junction is additionally provided with atomization circle.
As a kind of preferred scheme of the present utility model, the atomizing piece and atomization circle are vertically arranged and are parallel to each other.
As a kind of preferred scheme of the present utility model, splitter is provided with the reactant channels end.
As a kind of preferred scheme of the present utility model, gland is provided between the atomization circle and shower nozzle.
As a kind of preferred scheme of the present utility model, gun body and the shower nozzle junction is provided with sealing ring.
Compared with prior art, the beneficial effects of the utility model are：
1st, spray gun device used in the SNCR in the utility model, it is adjustable that spray angle is offered on shower nozzle
The nozzle of section, atomised form is designed as it is fan-shaped atomized, to ensure that reactant can fully contact with caused flue gas in boiler,
Increase reaction efficiency.
2nd, spray gun device used in the SNCR in the utility model, atomizing type is changed, with prior art
In spray pattern it is tapered compare, the atomization angle in the utility model is at least 60 °, and spray pattern is in sector, and spray gun
The reactant of ejection by spray gun reinforcement be atomized, droplet size reduce, quantity increase, total surface area increase, can fully with
Flue gas is reacted, and reduces NOXDischarge, and reduce reactant use, reduce processing cost, be advantageous to the spray gun device and exist
The popularization and application of field of Environment Protection.
Brief description of the drawings
Fig. 1 is the structure sectional view of spray gun device used in SNCR in the present embodiment；
Fig. 2 is the structure enlargement diagram at A in Fig. 1；
Fig. 3 is the structural representation of shower nozzle in spray gun device used in SNCR in the present embodiment.
Reference：1st, splitter；2nd, gland；3rd, shower nozzle；4th, atomizing piece；5th, atomization circle；6th, hybrid channel；7th, compression is empty
Gas passage；8th, reactant channels；9th, nozzle；10th, air inlet；11st, inlet；12nd, sealing ring；13rd, feed tube.
Embodiment
The utility model embodiment is elaborated below in conjunction with the accompanying drawings.
Embodiment：As shown in Figures 1 to 3, spray gun device used in a kind of SNCR, including gun body, on
State gun body and be provided with shower nozzle 3, the adjustable nozzle 9 of spray angle is offered on shower nozzle 3, can increase at nozzle 9 to slide
Dynamic sliding panel, slip plate shape is adapted with the shape of nozzle 9 realizes the adjustable of the size of nozzle 9, according to practical application scene
To adjust the size of nozzle 9, the waste of reactant is avoided.
The feed tube 13 for extending to gun body outer end is provided with above-mentioned gun body, above-mentioned feed tube 13 is provided with feed liquor
Mouthfuls 11, the one end of feed tube 13 can bending form, so as to avoid the pouring liquid feed tube 13 entered from inlet 11, to feed tube
13 are caused to damage, and compressed air channel 7 is formed between the outer wall of feed tube 13 and gun body inwall, is formed in above-mentioned feed tube 13
There are reactant channels 8；Above-mentioned compressed air channel 7 is provided with air inlet 10, and above-mentioned shower nozzle 3 is arranged on the He of compressed air channel 7
The connectivity part of reactant channels 8, in use, shower nozzle 3 and gun body junction are overhauled for convenience, Huo Zhewei
Convenience is changed to shower nozzle 3, and shower nozzle 3 is removably mounted on gun body.
Due to it is also quite conceivable to harmful substance be present in reacted material, in order to reduce harmful substance to the spray gun device
Damaged, above-mentioned shower nozzle 3 is bulb nut structure, and nozzle 9 is located at cap head center position, i.e., at the top of bulb, with existing skill
Shower nozzle 3 in art is compared in plane, and the shower nozzle 3 in the utility model and reacted material contact surface are smaller, to the guarantor of shower nozzle 3
It is bigger to protect power.
As shown in Figure 2 or Figure 3, in order that the reactant in spray gun device fully contacts with caused flue gas in boiler, spray
It is poroid that mouth 9 is shaped as flat, is at least 60 ° in sector, the spray angle of said nozzle 9 when reactant sprays, droplet is more existing
Spray pattern is tapered in technology compares, and droplet diminishes, and reactant is more abundant with smoke reaction, is not increasing the premise of reactant
Under, treatment effect is more preferable.
The above-mentioned end of compressed air channel 7 is provided with atomizing piece 4, and compressed air is entered at atomizing piece 4 at shower nozzle 3,
Under correct service condition, the service life of atomizing piece 4 about 3000 hours, and easily changing, its service life also with reactant
Quality it is relevant, if deposited dirt on atomizing piece 4, directly it can be dismantled at shower nozzle 3, the cleaning of soft cloth can be achieved clear
It is clean.According to different reactant and application target, different atomizing pieces 4 can be selected, if the harder area of water quality is from stainless
The atomizing piece of steel, it is desirable to which acidproof use environment selects glass glaze atomizing piece, and the latter can be selected in the present embodiment, can effectively prolong
The service life of the long spray gun device, reduces use cost.
The hybrid channel 6 passed through for compressed air and reactant, compressed air and reactant are formed among above-mentioned atomizing piece 4
Respectively by entering back into shower nozzle 3 from hybrid channel 6.
In order to further improve atomizing effect, also atomization circle 5, pressure are additionally provided with above-mentioned gun body and the junction of shower nozzle 3
Contracting air and reactant mix at atomization circle 5, reactant is reached optimal atomizing effect when spraying, and spray shower nozzle 3 anti-
It is in tentiform to answer agent, when reactant of the flue gas Jing Guo tentiform, to increase the contact area of reactant and caused flue gas in boiler,
Reaction efficiency is lifted, DS NOx Est is reduced, and reactant consumption will be reduced, and unreacted reactant is equally reduced, and is looked forward to reducing
The infringement to rear end equipment is reduced while industry processing cost, the flue gas after fully being contacted with droplet, reduces nitrogen oxides
Concentration, to meet discharge standard.
In order that the spray gun device using effect is more preferable, above-mentioned atomizing piece 4 and atomization circle 5 are vertically arranged and mutually put down
OK, compressed air and reactant can react, got ready to spray quickly through atomizing piece 4 and atomization circle 5 in shower nozzle 3, with
Improve the reaction efficiency of reactant and caused flue gas in boiler.
In order to strengthen the structural strength of the spray gun device, further fixed atomizing piece 4 and atomization circle 5, ensure the He of atomizing piece 4
5 positions of atomization circle do not change, in order to lift the speed that reactant passes through, to be further ensured that atomizing effect, above-mentioned atomization circle 5 with
Gland 2 is provided between shower nozzle 3, gland 2 is compacted on atomization circle 5, and atomization circle 5 is connected on atomizing piece 4, realizes the He of atomizing piece 4
The fixation of 5 positions of atomization circle.
In order to avoid reactant is revealed, increase the processing cost of enterprise, need to be done at gun body and the connector of shower nozzle 3 close
Envelope processing, gun body and the junction of shower nozzle 3 are provided with sealing ring 12.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model；Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Although reference in figure has more been used herein：1st, splitter；2nd, gland；3rd, shower nozzle；4th, atomizing piece；5th, mist
Change circle；6th, hybrid channel；7th, compressed air channel；8th, reactant channels；9th, nozzle；10th, air inlet；11st, inlet；12nd, it is close
Seal；13rd, the term such as feed tube, but it is not precluded from the possibility using other terms.Using these terms just for the sake of more
Easily describe and explain essence of the present utility model；It is all new with this practicality to be construed as any additional limitation
Type spirit is disagreed.
Claims (10)
- A kind of 1. spray gun device used in SNCR, it is characterised in that：Including gun body, on the gun body Provided with shower nozzle（3）, shower nozzle（3）On offer the adjustable nozzle of spray angle（9）；It is provided with the gun body and extends to spray The feed tube of gun body outer end（13）, feed tube（13）Compressed air channel is formed between outer wall and gun body inwall（7）, institute State feed tube（13）It is interior formed with reactant channels（8）；The compressed air channel（7）It is provided with air inlet（10）, it is described enter Liquid pipe（13）It is provided with inlet（11）；The shower nozzle（3）It is arranged on compressed air channel（7）And reactant channels（8）Connection Place.
- 2. spray gun device used in SNCR according to claim 1, it is characterised in that：The shower nozzle（3） For bulb nut structure, nozzle（9）Positioned at cap head center position.
- 3. spray gun device used in SNCR according to claim 1 or 2, it is characterised in that：The nozzle （9）It is poroid to be shaped as flat, in sector when reactant sprays.
- 4. spray gun device used in SNCR according to claim 3, it is characterised in that：The nozzle（9） Spray angle be at least 60 °.
- 5. spray gun device used in SNCR according to claim 4, it is characterised in that：The compressed air Passage（7）The end is provided with atomizing piece（4）, the atomizing piece（4）Centre forms the mixing passed through for compressed air and reactant and led to Road（6）.
- 6. spray gun device used in SNCR according to claim 5, it is characterised in that：The gun body And shower nozzle（3）Junction is additionally provided with atomization circle（5）.
- 7. spray gun device used in SNCR according to claim 6, it is characterised in that：The atomizing piece （4）Enclosed with atomization（5）It is vertically arranged and is parallel to each other.
- 8. spray gun device used in the SNCR according to claim 1 or 7, it is characterised in that：The reaction Agent passage（8）Splitter is provided with the end（1）.
- 9. spray gun device used in SNCR according to claim 6, it is characterised in that：The atomization circle （5）With shower nozzle（3）Between be provided with gland（2）.
- 10. spray gun device used in SNCR according to claim 1, it is characterised in that：The spray gun sheet Body and shower nozzle（3）Junction is provided with sealing ring（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720980966.5U CN207119483U (en) | 2017-08-07 | 2017-08-07 | Spray gun device used in a kind of SNCR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720980966.5U CN207119483U (en) | 2017-08-07 | 2017-08-07 | Spray gun device used in a kind of SNCR |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207119483U true CN207119483U (en) | 2018-03-20 |
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ID=61613143
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720980966.5U Active CN207119483U (en) | 2017-08-07 | 2017-08-07 | Spray gun device used in a kind of SNCR |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111570110A (en) * | 2019-02-15 | 2020-08-25 | 四季洋圃生物机电股份有限公司 | Wide-angle spray head |
-
2017
- 2017-08-07 CN CN201720980966.5U patent/CN207119483U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111570110A (en) * | 2019-02-15 | 2020-08-25 | 四季洋圃生物机电股份有限公司 | Wide-angle spray head |
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