CN206027401U - Boiler flue gas denitration system - Google Patents
Boiler flue gas denitration system Download PDFInfo
- Publication number
- CN206027401U CN206027401U CN201620919965.5U CN201620919965U CN206027401U CN 206027401 U CN206027401 U CN 206027401U CN 201620919965 U CN201620919965 U CN 201620919965U CN 206027401 U CN206027401 U CN 206027401U
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- China
- Prior art keywords
- shower
- flue gas
- filter layer
- boiler
- denitration system
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Abstract
The utility model provides a boiler flue gas denitration system, including flue gas pipeline and denitration reactor, flue gas pipeline communicates boiler and denitration reactor respectively be provided with boiler economizer in the flue gas pipeline be equipped with multiple layer distribution's filter layer in the denitration reactor the sintering has a denitration catalyst on the filter layer the below of filter layer is equipped with the liquid storage tank, is connected with out the tobacco pipe way between the filter layer of liquid storage tank upper portion and lower floor vertical first shower and the second shower of being provided with of denitration reactor inner wall, the equipartition has a plurality of shower nozzles on first shower and second shower, first shower and second shower are connected with through the person in charge and spray the pump, it has ammonia storing tank through the pipe connection to spray the pump. The beneficial effects of the utility model are that can effectively solve flue gas processing resources consume many, the running cost is high, produce the secondary pollution scheduling problem easily.
Description
Technical field
This utility model belongs to air cleaning facility technical field, more particularly, to a kind of boiler flue gas denitration system.
Background technology
With being on the rise for nitrogen oxides (NOx) exhaust emission, the approach for controlling nitrogen oxides has become current social concern
Focus environmental problem.Denitrating flue gas have been enter into the important schedule of air improvement, and the denitration technology of main flow is remained in current engineer applied
The external SCR technology introduced, not only invests in high but also running due to wanting spent catalyst and absorbent, and operating cost is higher.
Utility model content
For the above-mentioned problem mentioned in correlation technique, the utility model proposes a kind of boiler flue gas denitration system, energy
Enough effectively solving fume treatment resource consumptions are more, operating cost is high, easily produce secondary pollution problems.
The technical solution of the utility model is：A kind of boiler flue gas denitration system, including flue and Benitration reactor,
The flue is respectively communicated with boiler and Benitration reactor, is provided with boiler economizer, described in the flue
The filter layer of Multi-layers distributing is provided with Benitration reactor, and on the filter layer, sintering has denitrating catalyst, in the filter layer
Lower section be provided with liquid storage tank, be connected with smoke pipeline between liquid storage tank top and undermost filter layer, it is anti-in the denitration
Answer device inwall to be vertically arranged with the first shower and the second shower, be evenly equipped with the first shower and the second shower some
Shower nozzle, first shower and the second shower are connected with spray pump by supervisor, and the spray pump is connected with by pipeline
Tank used for storing ammonia.
Further, the shower nozzle is air atomizing shower nozzle.
Further, the diameter of the ammonia drop that the shower nozzle is ejected is less than or equal to 50 microns.
Further, between the filter layer at intervals of 20-50cm.
Further, the shower nozzle is uniformly arranged between filter layer.
Further, the filter layer is plectane, offers some small sircle holes on plectane.
This utility model has the advantages and positive effects that：Due to adopting above-mentioned technical proposal, in Benitration reactor
The first shower being vertically arranged and the second shower, what the shower nozzle arranged on the first shower and the second shower gushed out
The diameter of ammonia drop is decomposed into ammonia at once less than or equal to 50 microns, so can ensure that the liquid-drop diameter for ejecting is enough
Little, outer surface contact area is bigger, and the efficiency for being converted into ammonia is improved.
Description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is filtering layer structure schematic diagram of the present utility model.
In figure：
1st, flue 2, Benitration reactor 3, boiler economizer
4th, filter layer 5, liquid storage tank 6, smoke pipeline
7th, the first shower 8, the second shower 9, shower nozzle
10th, supervisor 11, spray pump 12, tank used for storing ammonia
13rd, small sircle hole
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is elaborated.
If Fig. 1-Fig. 2 is that, shown in structural representation of the present utility model, this utility model provides a kind of denitration of boiler smoke
System, including flue 1 and Benitration reactor 2, the flue 1 is respectively communicated with boiler and Benitration reactor 2, described
Boiler economizer 3 is provided with flue 1, the filter layer 4 of Multi-layers distributing is provided with the Benitration reactor 2, described
On filter layer 4, sintering has denitrating catalyst, is provided with liquid storage tank 5 in the lower section of the filter layer 4, on 5 top of liquid storage tank and most under
Smoke pipeline 6 is connected between the filter layer 4 of layer, the first shower 7 and the is vertically arranged with 2 inwall of the Benitration reactor
Two showers 8, are evenly equipped with some shower nozzles 9, first shower 7 and the second spray on the first shower 7 and the second shower 8
Shower pipe 8 is connected with spray pump 11 by supervisor 10, and the spray pump 11 is connected with tank used for storing ammonia 12 by pipeline.
The shower nozzle 9 is air atomizing shower nozzle.The diameter of the ammonia drop that the shower nozzle 9 is ejected is micro- less than or equal to 50
Rice.Between the filter layer 4 at intervals of 20-50cm.The shower nozzle 9 is uniformly arranged between filter layer 4.The filter layer 4
For plectane, some small sircle holes 13 are offered on plectane.
The course of work of this example：This utility model provide boiler flue gas denitration system when specifically used, from boiler
The flue gas of 300-700 DEG C out carries out denitration by flue 1 into Benitration reactor 2 first, and flue gas is in flue 1
When through boiler economizer 3, flue gas is further decreased to 280-350 DEG C.Flue gas enters the top of Benitration reactor 2, along vertical
Direction is down through Benitration reactor 2.The filter layer 4 of Multi-layers distributing is provided with Benitration reactor 2, and shower nozzle 9 uniformly sets
Put between filter layer 4, the ammonia drop ejected by uniform shower nozzle 9 on the first shower 7 and the second shower 8 it is straight
Footpath is less than or equal to 50 microns, and fine ammonia drop flashes to ammonia at once.Ammonia is made to mix homogeneously with flue gas.In filter layer 4
Upper sintering has denitrating catalyst, in the presence of denitrating catalyst, the NOx in flue gas be reduced to nontoxic pollution-free nitrogen and
Water, no waste liquid are produced, non-secondary pollution.
Benitration reactor 2 be monotubular vertical structure, flue 1 on reactor top, shower nozzle 9 be arranged on filter layer 4 it
Between shower nozzle 9 sprinkling ammonia drop.Gas is sent into from reactor, from top to bottom with ammoniacal liquor in co-current contact state, at this
Gas-liquid two-phase close contact in region, carries out denitration under the effects such as dilution, diffusion, neutralization.
Above one embodiment of the present utility model is described in detail, but the content is only of the present utility model
Preferred embodiment, it is impossible to be considered as limiting practical range of the present utility model.It is all to be made according to this utility model application range
Impartial change and improvement etc., still all should belong within patent covering scope of the present utility model.
Claims (6)
1. a kind of boiler flue gas denitration system, it is characterised in that：Including flue (1) and Benitration reactor (2), the flue gas
Pipeline (1) is respectively communicated with boiler and Benitration reactor (2), in the flue (1) is provided with boiler economizer (3),
The filter layer (4) of Multi-layers distributing is provided with Benitration reactor (2), and on the filter layer (4), sintering has denitrating catalyst,
Liquid storage tank (5) is provided with below the filter layer (4), is connected between liquid storage tank (5) top and undermost filter layer (4)
There is smoke pipeline (6), the first shower (7) and the second shower (8) is vertically arranged with the Benitration reactor (2) inwall,
Some shower nozzles (9), the first shower (7) and the second spray is evenly equipped with the first shower (7) and the second shower (8)
Pipe (8) is connected with spray pump (11) by being responsible for (10), and spray pump (11) are connected with tank used for storing ammonia (12) by pipeline.
2. boiler flue gas denitration system according to claim 1, it is characterised in that：Described shower nozzle (9) are sprayed for air atomizing
Head.
3. boiler flue gas denitration system according to claim 1, it is characterised in that：The ammonia that shower nozzle (9) eject
The diameter of drop is less than or equal to 50 microns.
4. boiler flue gas denitration system according to claim 1, it is characterised in that：Interval between filter layer (4)
For 20-50cm.
5. boiler flue gas denitration system according to claim 1, it is characterised in that：Shower nozzle (9) were uniformly arranged on
Between filtering layer (4).
6. boiler flue gas denitration system according to claim 1, it is characterised in that：Described filter layer (4) are plectane, are being justified
Some small sircle holes (13) are offered on plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620919965.5U CN206027401U (en) | 2016-08-22 | 2016-08-22 | Boiler flue gas denitration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620919965.5U CN206027401U (en) | 2016-08-22 | 2016-08-22 | Boiler flue gas denitration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206027401U true CN206027401U (en) | 2017-03-22 |
Family
ID=58307562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620919965.5U Expired - Fee Related CN206027401U (en) | 2016-08-22 | 2016-08-22 | Boiler flue gas denitration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206027401U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108786445A (en) * | 2018-06-12 | 2018-11-13 | 朋仁锋 | A kind of SCR denitration device |
| CN110822395A (en) * | 2019-11-20 | 2020-02-21 | 四川川锅锅炉有限责任公司 | Low-nitrogen combustion and denitration boiler |
-
2016
- 2016-08-22 CN CN201620919965.5U patent/CN206027401U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108786445A (en) * | 2018-06-12 | 2018-11-13 | 朋仁锋 | A kind of SCR denitration device |
| CN110822395A (en) * | 2019-11-20 | 2020-02-21 | 四川川锅锅炉有限责任公司 | Low-nitrogen combustion and denitration boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170322 Termination date: 20210822 |