CN207085664U - A kind of heavy pressure fine spray SNCR denitration system - Google Patents
A kind of heavy pressure fine spray SNCR denitration system Download PDFInfo
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- CN207085664U CN207085664U CN201721004391.XU CN201721004391U CN207085664U CN 207085664 U CN207085664 U CN 207085664U CN 201721004391 U CN201721004391 U CN 201721004391U CN 207085664 U CN207085664 U CN 207085664U
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- urea liquid
- gun barrel
- liquid
- denitration
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Abstract
It the utility model is related to a kind of heavy pressure fine spray SNCR denitration system,Can effectively solve the problems, such as to improve Denitration in Boiler efficiency,Technical scheme is,The discharging opening of elevator is connected with the charging aperture of urea liquid dissolving tank,The liquid outlet of urea liquid dissolving tank is connected with the inlet of urea liquid holding vessel,The liquid outlet of urea liquid holding vessel is connected with the inlet of urea liquid thinning tank,The liquid outlet of demineralized water storage bin is connected with the inlet on urea liquid dissolving tank top and the inlet on urea liquid thinning tank top respectively,Spraying system includes high pressure pump group and denitration spray gun,The liquid outlet of urea liquid thinning tank is connected with the inlet of high pressure pump group,The liquid outlet of high pressure pump group is connected with the inlet of denitration spray gun,The jet of denitration spray gun is stretched into boiler,The water under high pressure that the utility model sprays after being pressurizeed by high pressure pump group from denitration spray gun is in fan-shaped water mists,Multiple fan-shaped water mists mutually overlap to form water mists veil,Denitration efficiency is high,It is easy to use,Effect is good.
Description
Technical field
Denitration in Boiler system is the utility model is related to, particularly a kind of heavy pressure fine spray SNCR denitration system.
Background technology
With the development of China's economic society, environmental pollution getting worse that energy resource consumption is brought, China is based on coal
Energy resource structure, cause DS NOx Est amount to remain high.According to《" 13 " energy-saving and emission-reduction synthetic operation scheme》Target, arrive
The year two thousand twenty, national discharged nitrous oxides overall control is within 15,740,000 tons, it is contemplated that will decline 15% compared with 2015.For control
Discharged nitrous oxides, national discharged nitrous oxides policy criteria is increasingly strict, in July, 2011 State Council's issue《" 12 " are saved
Can the comprehensive programme of work of emission reduction》, clearly propose " 12 " nitrogen oxides emission reduction 10% the binding indicator.
SNCR, because cost-effective, is received as denitration in the stove technology by numerous enterprise customers.But existing SNCR takes off
Nitre technical equipment is complicated, and for denitration efficiency than relatively low, cost performance is not high.Therefore, also constrain the popularization of SNCR denitration technology and answer
With, it is difficult to meet requirement, using effect is unsatisfactory, and therefore, it is imperative that it improves and innovated.
Utility model content
For the above situation, to overcome the defect of prior art, the purpose of the utility model is just to provide a kind of high pressure fine
Water smoke SNCR denitration system, can effectively solve the problems, such as to improve Denitration in Boiler efficiency.
The technical scheme that the utility model solves is that a kind of heavy pressure fine spray SNCR denitration system, it includes feed proportioning system
And spraying system, feed proportioning system include elevator, urea liquid dissolving tank, urea liquid holding vessel, urea liquid thinning tank and
Demineralized water storage bin, the discharging opening of elevator is connected with the charging aperture on urea liquid dissolving tank top, under urea liquid dissolving tank
The liquid outlet in portion is connected through delivery pump with the inlet of urea liquid holding vessel, and the liquid outlet of urea liquid holding vessel is through matching somebody with somebody liquid pump
Be connected with the inlet of urea liquid thinning tank, the liquid outlet of demineralized water storage bin through dilution pumps respectively with urea liquid dissolving tank
The inlet on top is connected with the inlet on urea liquid thinning tank top, and spraying system includes high pressure pump group and denitration spray gun,
The liquid outlet of urea liquid thinning tank is connected through solution feed pump with the inlet of high pressure pump group, and liquid outlet and the denitration of high pressure pump group are sprayed
The inlet of rifle is connected, and the jet of denitration spray gun is stretched into boiler, and described denitration spray gun has multiple, is distributed on pot in a ring
In the side wall of the same radial section of stove, the injection direction of its jet is filled on the jet of denitration spray gun towards the center of boiler
There are nozzle, the jet of nozzle（711a）For in slot-shaped long stripes through hole.
Described denitration spray gun includes outer gun barrel, interior gun barrel and fan-shaped atomized shower nozzle, during interior gun barrel is installed in outer gun barrel
Outer gun barrel is stretched out in the heart, one end, stretches out one end and is connected with the liquid outlet of high pressure pump group, the other end and the sector mounted in outer gun barrel end
The import of atomizer is connected, and the cavity between the inboard wall of tube body of the tube wall of interior gun barrel and outer gun barrel is formed for protecting
The compressed air channel of interior gun barrel, the one end of outer gun barrel equipped with fan-shaped atomized shower nozzle are provided with the pressure being connected with compressed air channel
Contracting air outlet slit, compressed air inlet port is provided with the side wall of outer gun barrel.
Described fan-shaped atomized shower nozzle includes nozzle base and the nozzle on nozzle base, the inner chamber of nozzle base and
The inner chamber of nozzle is sequentially connected the logical injection liquid supplying passage for forming jet.
Be provided with described urea liquid dissolving tank, urea liquid holding vessel and urea liquid thinning tank heater,
Temperature sensor, agitator and liquid level sensor, the first electricity is provided with the pipeline between dilution pumps and urea liquid dissolving tank
Magnet valve, second solenoid valve, the first magnetic valve, the second electromagnetism are provided with the pipeline between dilution pumps and urea liquid thinning tank
Valve, high pressure pump group, delivery pump, with liquid pump, dilution pumps, solution feed pump and each heater, temperature sensor, agitator and liquid level pass
Sensor is connected with controller, forms automatic control structure.
The utility model structure novel and unique, advantages of simple, easily production are easy to operate, pass through after the quick dispensing of feed proportioning system
The water under high pressure sprayed after the pressurization of high pressure pump group from denitration spray gun is in fan-shaped water mists, and the fan-shaped atomized shower nozzle of multiple denitration spray guns sprays
The fan-shaped water mists penetrated mutually overlap to form water mists veil, are fully contacted with the flue gas in boiler and anti-with the NOx in flue gas
N should be generated2And water, denitration efficiency is high, and easy to use, effect is good, there is good social and economic benefit.
Brief description of the drawings
Fig. 1 is structure connection diagram of the present utility model.
Fig. 2 is the sectional view of the utility model denitration spray gun
Fig. 3 is the utility model Fig. 2 A-A to sectional view.
Fig. 4 is the front view of the fan-shaped atomized shower nozzle of the utility model.
Fig. 5 is the top view of the fan-shaped atomized shower nozzle of the utility model.
Fig. 6 is arrangement schematic diagram of the utility model denitration spray gun on boiler.
Fig. 7 is that the utility model is electrically connected frame figure.
Embodiment
Specific embodiment of the present utility model is described in further detail below in conjunction with accompanying drawing.
Provided by Fig. 1-7, the utility model includes feed proportioning system and spraying system, and feed proportioning system includes elevator 1, urea
Solution dissolving tank 2, urea liquid holding vessel 3, urea liquid thinning tank 4 and demineralized water storage bin 13, the discharging opening of elevator 1 with
The charging aperture on the top of urea liquid dissolving tank 2 is connected, and the liquid outlet of the bottom of urea liquid dissolving tank 2 is molten through delivery pump 5 and urea
The inlet of liquid holding vessel 3 is connected, and the liquid outlet of urea liquid holding vessel 3 passes through the feed liquor with liquid pump 6 with urea liquid thinning tank 4
Mouthful it is connected, the liquid outlet of demineralized water storage bin 13 is through the inlet and urine with the top of urea liquid dissolving tank 2 respectively of dilution pumps 10
The inlet on the plain top of solution thinning tank 4 is connected, and spraying system includes high pressure pump group 9 and denitration spray gun 7, urea liquid thinning tank
4 liquid outlet is connected through solution feed pump 8 with the inlet of high pressure pump group 9, the liquid outlet of high pressure pump group 9 and the feed liquor of denitration spray gun 7
Mouthful it is connected, the jet of denitration spray gun 7 is stretched into boiler 12, and described denitration spray gun 7 has multiple, is distributed on boiler 12 in a ring
In the side wall of same radial section, the injection direction of its jet is equipped with the jet of denitration spray gun 7 towards the center of boiler
Nozzle 711, the jet 711a of nozzle 711 is in slot-shaped long stripes through hole.
To ensure using effect, described denitration spray gun 7 includes outer gun barrel 73, interior gun barrel 75 and fan-shaped atomized shower nozzle 71,
Interior gun barrel 75 is installed on center in outer gun barrel 73, and outer gun barrel 73 is stretched out in one end, stretches out one end and the liquid outlet phase of high pressure pump group 9
Even, the other end is connected with the import of fan-shaped atomized shower nozzle 71 mounted in the outer end of gun barrel 73, the tube wall of interior gun barrel 75 and
Cavity between the inboard wall of tube body of outer gun barrel 73 forms the compressed air channel 77 for protecting interior gun barrel, and outer gun barrel 73 is equipped with fan
One end of shape atomizer is provided with the compressed air outlet 72 being connected with compressed air channel 77, is opened in the side wall of outer gun barrel 73
There is compressed air inlet port 76；
Described fan-shaped atomized shower nozzle 71 includes nozzle base 712 and the nozzle 711 on nozzle base, nozzle base
Inner chamber and the inner chamber of nozzle be sequentially connected the logical injection liquid supplying passage for forming jet 711a；
Described outer gun barrel 73 is the hollow structure of one end open, and the oral area of outer gun barrel 73 is equipped with end cap 73a, end cap 73a
Upper that fan-shaped atomized shower nozzle 71 is housed, the outside of fan-shaped atomized shower nozzle 71 is provided with the compressed air outlet of inside and outside insertion on end cap
72, compressed air inlet port 76 is arranged on the sealed end of outer gun barrel 73, and it is outer that interior gun barrel 75 passes through the sealed end of outer gun barrel 73 to stretch into
Center in gun barrel 73, the import for stretching into one end with fan-shaped atomized shower nozzle 71 are connected.
The adpting flange 74 for being used for being connected with boiler is housed on the outer wall of described denitration spray gun 7.
Heating is provided with described urea liquid dissolving tank 2, urea liquid holding vessel 3 and urea liquid thinning tank 4
Device, temperature sensor, agitator and liquid level sensor, it is provided with the pipeline between dilution pumps 10 and urea liquid dissolving tank 2
First magnetic valve 11a, second solenoid valve 11b, the first electricity are provided with the pipeline between dilution pumps 10 and urea liquid thinning tank 4
Magnet valve 11a, second solenoid valve 11b, high pressure pump group, delivery pump 5, with liquid pump 6, dilution pumps 10, solution feed pump 8 and each heater,
Temperature sensor, agitator and liquid level sensor are connected with controller, form automatic control structure, and described controller is
Commercially available prod, such as PLC, 8051 singlechip controllers etc., the water level in each tank body is controlled by liquid level sensor, led to
The keying of control water pump and magnetic valve is crossed so as to control flow, and then the concentration of urea liquid is controlled.
Described jet 711a width is 1-3mm；
Described delivery pump 5, with liquid pump 6, dilution pumps 10 and solution feed pump 8 it is water pump.
For the utility model in use, urea solid particle is promoted in urea liquid dissolving tank 2 by elevator 1, unlatching is dilute
The magnetic valve of pump 7 and first is released toward demineralized water is injected in urea liquid dissolving tank 2, is configured to the urea liquid of concentration 40%, closes the
The urea liquid of concentration 40% is transported in urea liquid holding vessel 3 by one magnetic valve and dilution pumps, delivery pump 5, will with liquid pump 6
The urea liquid of concentration 40% is transported in urea liquid thinning tank 4 in urea liquid holding vessel, opens the electricity of dilution pumps 7 and second
Magnet valve is configured to the urea liquid of concentration 10% toward demineralized water is injected in urea liquid thinning tank 4, and solution feed pump 8 is by concentration 10%
Urea liquid is conveyed to high pressure pump group 9, and high pressure pump group 9 is conveyed to denitration spray gun 10 after pressurizeing, denitration spray gun 10 will pressurize（5-
15Mpa）The urea liquid of concentration 10% afterwards sprays into boiler, and the section that denitration spray gun is fixed is that fire box temperature is 850~1100 DEG C
Region, denitration reaction then occurs in urea liquid and flue gas, removes the NO in flue gasX.Compared with prior art, this practicality
New structure novel and unique, advantages of simple, easily production are easy to operate, after being pressurizeed after the quick dispensing of feed proportioning system by high pressure pump group
The water under high pressure sprayed from denitration spray gun be in fan-shaped water mists, the fan-shaped water mists that the fan-shaped atomized shower nozzles of multiple denitration spray guns sprays
Mutually overlap joint forms water mists veil, is fully contacted with the flue gas in boiler and generates N with the NOx reactions in flue gas2And water, take off
Nitre efficiency high, easy to use, effect is good, there is good social and economic benefit.
Claims (7)
1. a kind of heavy pressure fine spray SNCR denitration system, it is characterised in that it includes feed proportioning system and spraying system, feed proportioning system
Including elevator（1）, urea liquid dissolving tank（2）, urea liquid holding vessel（3）, urea liquid thinning tank（4）Stored up with demineralized water
Deposit case（13）, elevator（1）Discharging opening and urea liquid dissolving tank（2）The charging aperture on top is connected, urea liquid dissolving tank
（2）The liquid outlet of bottom is through delivery pump（5）With urea liquid holding vessel（3）Inlet be connected, urea liquid holding vessel（3）'s
Liquid outlet is through matching somebody with somebody liquid pump（6）With urea liquid thinning tank（4）Inlet be connected, demineralized water storage bin（13）Liquid outlet through dilute
Release pump（10）Respectively with urea liquid dissolving tank（2）The inlet and urea liquid thinning tank on top（4）The inlet phase on top
Even, spraying system includes high pressure pump group（9）And denitration spray gun（7）, urea liquid thinning tank（4）Liquid outlet through solution feed pump（8）
With high pressure pump group（9）Inlet be connected, high pressure pump group（9）Liquid outlet and denitration spray gun（7）Inlet be connected, denitration spray
Rifle（7）Jet stretch into boiler（12）Interior, described denitration spray gun（7）Have multiple, be distributed on boiler in a ring（12）It is same
In the side wall of radial section, the injection direction of its jet is towards the center of boiler, denitration spray gun（7）Jet on equipped with spray
Mouth（711）, nozzle（711）Jet（711a）For in slot-shaped long stripes through hole.
2. heavy pressure fine spray SNCR denitration system according to claim 1, it is characterised in that described denitration spray gun（7）
Including outer gun barrel（73）, interior gun barrel（75）With fan-shaped atomized shower nozzle（71）, interior gun barrel（75）It is installed on outer gun barrel（73）Interior center,
Outer gun barrel is stretched out in one end（73）, stretch out one end and high pressure pump group（9）Liquid outlet be connected, the other end and be mounted in outer gun barrel（73）End
The fan-shaped atomized shower nozzle in portion（71）Import be connected, interior gun barrel（75）Tube wall and outer gun barrel（73）Inboard wall of tube body it
Between cavity form compressed air channel for protecting interior gun barrel（77）, outer gun barrel（73）One end equipped with fan-shaped atomized shower nozzle
It is provided with and compressed air channel（77）The compressed air outlet being connected（72）, outer gun barrel（73）Side wall on be provided with compressed air
Air inlet（76）.
3. heavy pressure fine spray SNCR denitration system according to claim 2, it is characterised in that described fan-shaped atomized shower nozzle
（71）Including nozzle base（712）With the nozzle on nozzle base（711）, the inner chamber of nozzle base and the inner chamber of nozzle according to
The secondary composition jet that is connected（711a）Injection liquid supplying passage.
4. heavy pressure fine spray SNCR denitration system according to claim 2, it is characterised in that described outer gun barrel（73）For
The hollow structure of one end open, outer gun barrel（73）Oral area end cap is housed（73a）, end cap（73a）It is upper that fan-shaped atomized shower nozzle is housed
（71）, fan-shaped atomized shower nozzle（71）Outside the compressed air outlet of inside and outside insertion is provided with end cap（72）, compressed air enters
Gas port（76）It is arranged on outer gun barrel（73）Sealed end, interior gun barrel（75）Through outer gun barrel（73）Sealed end stretch into outer gun barrel
（73）Interior center, stretch into one end and fan-shaped atomized shower nozzle（71）Import be connected.
5. heavy pressure fine spray SNCR denitration system according to claim 1, it is characterised in that described denitration spray gun（7）
Outer wall on be equipped with and be used for the adpting flange that is connected with boiler（74）.
6. heavy pressure fine spray SNCR denitration system according to claim 1, it is characterised in that described urea liquid dissolving
Tank（2）, urea liquid holding vessel（3）With urea liquid thinning tank（4）Inside it is provided with heater, temperature sensor, agitator
And liquid level sensor, dilution pumps（10）With urea liquid dissolving tank（2）Between pipeline on be provided with the first magnetic valve（11a）,
Dilution pumps（10）With urea liquid thinning tank（4）Between pipeline on be provided with second solenoid valve（11b）, the first magnetic valve
（11a）, second solenoid valve（11b）, high pressure pump group, delivery pump（5）, with liquid pump（6）, dilution pumps（10）, solution feed pump（8）It is and each
Heater, temperature sensor, agitator and liquid level sensor are connected with controller, form automatic control structure.
7. heavy pressure fine spray SNCR denitration system according to claim 1, it is characterised in that described jet（711a）
Width be 1-3mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721004391.XU CN207085664U (en) | 2017-08-11 | 2017-08-11 | A kind of heavy pressure fine spray SNCR denitration system |
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| CN201721004391.XU CN207085664U (en) | 2017-08-11 | 2017-08-11 | A kind of heavy pressure fine spray SNCR denitration system |
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| CN207085664U true CN207085664U (en) | 2018-03-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107261802A (en) * | 2017-08-11 | 2017-10-20 | 河南海力特机电制造有限公司 | Heavy pressure fine spray SNCR denitration system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107261802A (en) * | 2017-08-11 | 2017-10-20 | 河南海力特机电制造有限公司 | Heavy pressure fine spray SNCR denitration system |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20190326 Address after: No. 22 Ruida Road, Zhengzhou High-tech Industrial Development Zone, Henan Province Patentee after: Henan Hailite Environmental Protection Technology Co., Ltd. Address before: 450001, No. 22, Ruida Road, hi tech Zone, Henan, Zhengzhou Patentee before: Hailite Electromechanical Mfg. Co., Ltd., He'nan Prov. |