CN205461764U - Novel little spray gun SNCR+ ozone flue gas denitration device - Google Patents
Novel little spray gun SNCR+ ozone flue gas denitration device Download PDFInfo
- Publication number
- CN205461764U CN205461764U CN201620126118.3U CN201620126118U CN205461764U CN 205461764 U CN205461764 U CN 205461764U CN 201620126118 U CN201620126118 U CN 201620126118U CN 205461764 U CN205461764 U CN 205461764U
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- Prior art keywords
- spray gun
- sncr
- ozone
- flue gas
- district
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Abstract
The utility model relates to a novel little spray gun SNCR+ ozone flue gas denitration device, including the boiler, blender and ozone generator, the boiler below is provided with air heater, spray gun district and boiler economizer, a coal economizer and an air preheater, spray gun district and boiler economizer top -down set gradually, the regional SNCR reaction zone that is of atomizing in spray gun district, the spray gun district is provided with a plurality of evenly distributed's atomizing spray gun through flow field simulation, the entry of atomizing spray gun sets up to single interface, 20% aqueous ammonia has let in in the single interface, the spray gun district links to each other with the flue gas input port of blender through flue gas pipeline, ozone generator passes through ozone conveying pipe and says with the ozone input port of blender continuously, compared with the prior art, the utility model, combined characteristics such as SNCR technological investment province and ozone technology are simple, denitration efficiency is high, and the few investment cost of equipment is few, is favorable to realizing discharge to reach standard, satisfies the energy saving and emission reduction index of country.
Description
[technical field]
This utility model relates to nitrogen oxides treatment device technique field, a kind of novel little spray gun
SNCR+ ozone equipment for denitrifying flue gas.
[background technology]
At present, the commonly used SCR technology of denitrating flue gas and SNCR technology, all reducing discharging nitrogen oxides and changing
Kind environment aspect plays positive effect, but according to current service condition, occurs in that the most successively
New problem is such as: have higher operating cost and corrosivity, and the control system of complexity, higher
Site requirements, more steel construction.
[utility model content]
The purpose of this utility model seeks to solve above-mentioned deficiency and provides a kind of novel little spray gun SNCR+ smelly
Oxygen equipment for denitrifying flue gas, combines the features such as SNCR technological investment province and ozone technology are simple, is conducive to real
Existing qualified discharge, meets the energy-saving and emission-reduction index of country.
A kind of novel little spray gun SNCR+ ozone equipment for denitrifying flue gas of design for achieving the above object, including boiler 1,
Blender 5 and ozonator 6, be provided with air preheater 2, spray gun district 3 and pot below described boiler 1
Stove economizer 4, described air preheater 2, spray gun district 3 and boiler economizer 4 set gradually from top to bottom,
The nebulization region in described spray gun district 3 is SNCR reaction zone, and described spray gun district 3 is provided with many by flow field simulation
Individual equally distributed atomizing lance, the entrance of described atomizing lance is set to single face, described single face
Inside being passed through 20% ammonia, described spray gun district 3 is inputted by the flue gas of smoke conveying duct 501 with blender 5
Mouth is connected, and described ozonator 6 is by ozone transport conduit 502 and the ozone input port phase of blender 5
Even.
The nozzle cone angle of described atomizing lance is 120-150 degree, and the atomized particle size of described atomizing lance is 150um.
The entrance of described atomizing lance connects carbamide demineralized water mixed liquor delivery port 301, and described carbamide demineralized water mixes
Close the connection of liquid delivery port 301 front and have compression pump.
The temperature of described SNCR reaction zone is 850-1050 DEG C.
Being provided with gas delivery port after reaction on described blender 5, after described reaction, gas delivery port is by defeated
Go out pipeline 503 to be connected with desulfurization workshop section device.
This utility model compared with the existing technology, has the advantage that
(1) denitration efficiency is high, and single SNCR technique denitration efficiency is low, and SNCR+ ozone process is more than 80%
Above；
(2) in the preliminary denitration of SNCR, have employed little spray gun, gun inlets only one of which, it is not necessary to compression
Air and demineralized water, directly spray with 20% ammonia, and lance ejection amount is little out of stock effective, ammonia consumption
Amount is few, it is adaptable to the boiler of special burner hearth, and the few investment cost of equipment is few；
(3) little spray gun device is single import, it is not necessary to compressed air cylinder and air compressor machine, desalination water pot, empty
Between strong adaptability, it is not necessary to complicated steel construction, the most also have and reduce investment outlay；
(4) ozone reactor occupation of land volume is little, and space adaptability is strong, the most also has and reduces investment outlay and be not subject to
Place limits；
(5) simplifying reductant injection system, increase burner hearth reducing agent sprays into interval, improves SNCR
The denitration efficiency in stage；
(6) safer carbamide and ozone can be conveniently used as denitrification reducing agent；
(7) it is advantageously implemented qualified discharge, meets the energy-saving and emission-reduction index of country.
[accompanying drawing explanation]
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of atomizing lance in this utility model；
Fig. 3 is the connection diagram of blender in this utility model；
In figure: 1, boiler 2, air preheater 3, spray gun district 4, boiler economizer 5, blender
6, ozonator 301, carbamide demineralized water mixed liquor delivery port 501, smoke conveying duct 502,
Ozone transport conduit 503, output channel.
[detailed description of the invention]
Below in conjunction with the accompanying drawings this utility model is made further explained below:
As shown in drawings, this utility model includes: boiler 1, blender 5 and ozonator 6, boiler 1
Lower section is provided with air preheater 2, spray gun district 3 and boiler economizer 4, air preheater 2, spray gun district 3
Setting gradually from top to bottom with boiler economizer 4, the nebulization region in spray gun district 3 is SNCR reaction zone, spray gun
District 3, by flow field simulation, is provided with multiple equally distributed atomizing lance, and the entrance of atomizing lance is set to
Single face, has been passed through 20% ammonia in single face, 20% ammonia being passed through is through spray gun atomization height in stove
With the NO in flue gas after warm solutionXReaction, the temperature of SNCR reaction zone is 850-1050 DEG C, and spray gun district 3 leads to
Crossing smoke conveying duct 501 to be connected with the flue gas input port of blender 5, ozonator 6 is defeated by ozone
Pipeline 502 is sent to be connected with the ozone input port of blender 5.
In this utility model, each atomizing lance has a single face, and each atomizing lance stream emitted dose is little,
Each nozzle cone angle 120-150 degree, atomized particle size is about 150um.Ozonator produce ozone with
Flue gas hybrid reaction in blender that flue comes, is entering mixing through the reacted flue gas in SNCR reaction zone
Device, the ozone reaction that in flue gas, remaining NO and ozonator are passed in blender generates NO2、N2O3、
N2O5, the NO of generation2、N2O3、N2O5Enter desulfurization section from blender to remove in desulfurization section.
As shown in Figure 2, the entrance of atomizing lance connects carbamide demineralized water mixed liquor delivery port 301, and carbamide removes
Salt water mixed liquid delivery port 301 front connects compression pump, thus by the pressure of front pump by carbamide desalination
Urea liquid in water mixed liquid delivery port 301 sprays into boiler.
As shown in Figure 3, blender 5 is provided with gas delivery port after reaction, gas delivery port after reaction
Being connected with desulfurization workshop section device by output channel 503, smoke conveying duct 501 accesses blender 4, ozone
Conveyance conduit 502 accesses blender, flue gas and ozone reaction in blender, and reacted gas is by defeated
Go out pipeline 503 and be sent to the removal of desulfurization workshop section.
The flue-gas denitration process SNCR+ ozone that the utility model proposes, is in single SNCR, the out of stock effect of ozone
Rate does not reaches, and the one in the case of SCR output investment ratio is relatively big optimizes out of stock mode.Which decreases compression sky
Gas, directly sprays the flue gas in boiler with ammonia, reduces construction costs and operating cost, be one
Plant efficient flue-gas denitration process.Wherein,
SNCR know-why is: SNCR (SNCR) technology is with reducing agents such as ammonia spirits
Selective reaction is carried out with NOx in spraying into stove.It is 850 DEG C～the region of 1050 DEG C that reducing agent sprays into fire box temperature,
Reducing agent evaporates rapidly and is thermally decomposed into NH3, and with the NOx in flue gas carry out SNCR react generation N2, should
Method is with burner hearth as reactor.
4NH3+4NO+O2→4N2+6H2O (with ammonia as reducing agent)
The out of stock know-why of ozone is: ozone denitration technology is to use O3The NO being insoluble in water in flue gas is oxidized to
The NO of high-valence state2, then with alkaline solution by the nox adsorption of high-valence state.The nitrate generated is again through dense
Contracting processes or discharge.
NO+O3→NO2+O2
HNO3+NaOH→NaNO3+H2O
This utility model is not limited by above-mentioned embodiment, other any without departing from of the present utility model
The change made under spirit and principle, modify, substitute, combine, simplify, all should be the displacement of equivalence
Mode, within being included in protection domain of the present utility model.
Claims (5)
1. a novel little spray gun SNCR+ ozone equipment for denitrifying flue gas, it is characterised in that: include boiler (1), mix
Clutch (5) and ozonator (6), described boiler (1) lower section be provided with air preheater (2),
Spray gun district (3) and boiler economizer (4), described air preheater (2), spray gun district (3) and boiler
Economizer (4) sets gradually from top to bottom, and the nebulization region of described spray gun district (3) is SNCR reaction zone,
Described spray gun district (3) is provided with multiple equally distributed atomizing lance by flow field simulation, and described atomization is sprayed
The entrance of rifle is set to single face, has been passed through 20% ammonia, described spray gun district (3) in described single face
Being connected by the flue gas input port of smoke conveying duct (501) with blender (5), described ozone occurs
Device (6) is connected with the ozone input port of blender (5) by ozone transport conduit (502).
Novel little spray gun SNCR+ ozone equipment for denitrifying flue gas the most as claimed in claim 1, it is characterised in that: institute
The nozzle cone angle stating atomizing lance is 120-150 degree, and the atomized particle size of described atomizing lance is 150um.
Novel little spray gun SNCR+ ozone equipment for denitrifying flue gas the most as claimed in claim 1 or 2, it is characterised in that:
The entrance of described atomizing lance connects carbamide demineralized water mixed liquor delivery port (301), described carbamide demineralized water
Mixed liquor delivery port (301) front connects compression pump.
Novel little spray gun SNCR+ ozone equipment for denitrifying flue gas the most as claimed in claim 3, it is characterised in that: institute
The temperature stating SNCR reaction zone is 850-1050 DEG C.
Novel little spray gun SNCR+ ozone equipment for denitrifying flue gas the most as claimed in claim 4, it is characterised in that: institute
Stating and be provided with gas delivery port after reaction on blender (5), after described reaction, gas delivery port is by output
Pipeline (503) is connected with desulfurization workshop section device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620126118.3U CN205461764U (en) | 2016-02-18 | 2016-02-18 | Novel little spray gun SNCR+ ozone flue gas denitration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620126118.3U CN205461764U (en) | 2016-02-18 | 2016-02-18 | Novel little spray gun SNCR+ ozone flue gas denitration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205461764U true CN205461764U (en) | 2016-08-17 |
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ID=56677697
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620126118.3U Expired - Fee Related CN205461764U (en) | 2016-02-18 | 2016-02-18 | Novel little spray gun SNCR+ ozone flue gas denitration device |
Country Status (1)
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| CN (1) | CN205461764U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106215657A (en) * | 2016-09-19 | 2016-12-14 | 成都华西堂环保科技有限公司 | A kind of flue gas pollutant purification method |
-
2016
- 2016-02-18 CN CN201620126118.3U patent/CN205461764U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106215657A (en) * | 2016-09-19 | 2016-12-14 | 成都华西堂环保科技有限公司 | A kind of flue gas pollutant purification method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170118 Address after: 201203 Shanghai Zhangjiang hi tech park fanchun Road No. 400 Building 1 floor 301-324 room 3 Patentee after: SHANGHAI SHENLYU ENERGY SAVING ENVIRONMENTAL PROTECTION ENGINEERING DESIGN RESEARCH AND DEVELOPMENT CO., LTD. Address before: Pudong New Area Heqing town Dongchuan road 201201 Shanghai City No. 5227 Building 2 Patentee before: Huang Shengjian |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20180218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |