CN208694708U - Ammonia-spraying grid device for denitrating flue gas - Google Patents
Ammonia-spraying grid device for denitrating flue gas Download PDFInfo
- Publication number
- CN208694708U CN208694708U CN201820867117.3U CN201820867117U CN208694708U CN 208694708 U CN208694708 U CN 208694708U CN 201820867117 U CN201820867117 U CN 201820867117U CN 208694708 U CN208694708 U CN 208694708U
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- ammonia
- bye
- spraying grid
- flue gas
- denitrating flue
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Abstract
The utility model relates to a kind of smoke removing device more particularly to a kind of ammonia-spraying grid devices for denitrating flue gas；Including at least one ammonia-spraying grid unit, ammonia-spraying grid unit includes a main line, several bye-passes, expansion joint, spray head and U-bolt, one end of several bye-passes is connected with main line, several closed other ends of bye-pass are fixed by U-bolt respectively, it is mounted on expansion joint between main line and each bye-pass, is all evenly distributed with several spray heads on each bye-pass；The utility model provides that a kind of design of structure is simple, the lower more stable ammonia-spraying grid for high effective flue gas denitration of operating cost.
Description
Technical field
The utility model relates to a kind of smoke removing device more particularly to a kind of ammonia-spraying grid devices for denitrating flue gas.
Background technique
The problem of it is environmental pollution in order to prevent that denitrification is removed in combustion product gases, has been used as world wide is sharp
Ground is contemplated, and the technique of the prior art has SCR denitration process, and the technique is low, safe and reliable with operating cost, exports nitrogen oxygen
The advantages such as compound concentration is low have key technology point in the technique, are exactly the uniformity coefficient that flue gas is mixed with ammonia, if ammonia with
Exhaust gas containing nitrogen oxides is sufficiently uneven, and when by out of stock catalyst, nitrogen oxides can not react completely, cause
Exhanst gas outlet phenomenon not up to standard；In addition, unreacted ammonia, can form ammonium hydrogen sulfate and sulfuric acid with the sulfur dioxide in flue gas
Ammonium, this substance are easily attached to flue surfaces and boiler inner wall, cause entire flue or tower body to block, pressure increase, and
And it is difficult to clean.
In conclusion in view of the above deficiencies, need to design and develop a kind of for flue gas and ammonia is well-mixed is used for
The ammonia-spraying grid device of denitrating flue gas can supply above-mentioned each disadvantage.
Summary of the invention
In order to solve the above technical problems, the purpose of the utility model is to provide a kind of structures to design simple, operating cost more
The low more stable ammonia-spraying grid for flue gas NO_x Reduction by Effective.
Ammonia-spraying grid device provided by the utility model for denitrating flue gas, including at least one ammonia-spraying grid unit,
The ammonia-spraying grid unit includes a main line, several bye-passes, expansion joint, spray head and U-bolt, several bye-passes
One end be connected with the main line, several closed other ends of bye-pass are solid by the U-bolt respectively
It is fixed, it is mounted on the expansion joint between main line and each bye-pass, all uniformly divides on each bye-pass
It is furnished with several spray heads.
Further, flanged joint mouth is equipped at the air inlet of the main line.
Further, each described ammonia-spraying grid unit includes four bye-passes.
Further, four bye-passes are arranged in parallel.
Further, further include stiffening ring for fixing the expansion joint.
Further, the jet direction of each spray head is identical.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.
Detailed description of the invention
Fig. 1 is the front view of the ammonia-spraying grid device provided by the utility model for denitrating flue gas；
Fig. 2 is the front view of ammonia-spraying grid unit in Fig. 1.
The meaning respectively marked in attached drawing is as follows:
1, ammonia-spraying grid unit 2, main line 3, bye-pass 4, expansion joint 5, spray head 6, U-bolt 7, stiffening ring.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Ammonia-spraying grid device provided by the utility model for denitrating flue gas includes at least one ammonia-spraying grid unit 1,
Ammonia-spraying grid unit 1 includes a main line 2, several bye-passes 3, expansion joint 4, spray head 5 and U-bolt 6, several bye-passes 3
One end be connected with main line 2, the closed other end of several bye-passes 3 is fixed by U-bolt 6 respectively, main line 2
It is mounted on expansion joint 4 between each bye-pass 3, several spray heads 5 are all evenly distributed on each bye-pass 3.
A kind of working principle of ammonia-spraying grid device for denitrating flue gas provided by the utility model is:
Multiple ammonia-spraying grid units 1, each ammonia-spraying grid list can be used simultaneously according to the size of flue or boiler
Bye-pass 3 in member 1 can be according to field condition design length, and the expansion joint 4 installed on each bye-pass 3 guarantees ammonia-spraying grid
Operation steady in a long-term, meanwhile, on each bye-pass 3 equally distributed spray head 5 can make ammonia be evenly distributed in flue or
In person's boiler, guarantee ammonia and the full and uniform mixed denitration performance of exhaust gas.
In order to input ammonia into bye-pass 3 by main line 2, flanged joint mouth is equipped at the air inlet of main line 2.
In order to give full play to the effect of each ammonia-spraying grid unit 1, each ammonia-spraying grid unit 1 includes four branch pipes
Road 3, four bye-passes 3 are arranged in parallel.
It further include the stiffening ring 7 for fixed expansion section 4 in order to which expansion joint 4 to be fixed on outside flue or boiler.
The ammonia and flue gas sprayed in order to spray head 5 is sufficiently mixed, and the jet direction of each spray head 5 is identical.
The advantage of ammonia-spraying grid device provided by the utility model for denitrating flue gas is:
1, an ammonia main line can be split as four spray ammonia bye-passes, and every spray ammonia pipeline length can be adjusted
Section；
2, it is designed with spray head on each bye-pass, guarantees that the ammonia sprayed can be evenly distributed in flue or boiler
It is interior；
3, expansion joint is had on each bye-pass, guarantees that ammonia-spraying grid is run steadily in the long term；
4, device structure is simple, the manufacturing cycle is short, at low cost.
Above are merely preferred embodiments of the utility model, it is not intended to limit the utility model, it is noted that for
For those skilled in the art, without deviating from the technical principle of the utility model, if can also make
Dry improvement and modification, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (6)
1. a kind of ammonia-spraying grid device for denitrating flue gas, it is characterised in that: described including at least one ammonia-spraying grid unit
Ammonia-spraying grid unit include a main line, several bye-passes, expansion joint, spray head and U-bolt, the one of several bye-passes
End is connected with the main line, and several closed other ends of bye-pass are fixed by the U-bolt respectively, main
It is mounted on the expansion joint between pipeline and each bye-pass, if being all evenly distributed on each bye-pass
Dry spray head.
2. the ammonia-spraying grid device according to claim 1 for denitrating flue gas, it is characterised in that: the main line into
Flanged joint mouth is equipped at port.
3. the ammonia-spraying grid device according to claim 1 for denitrating flue gas, it is characterised in that: each described spray ammonia
Grill unit includes four bye-passes.
4. the ammonia-spraying grid device according to claim 3 for denitrating flue gas, it is characterised in that: four bye-passes
It is arranged in parallel.
5. the ammonia-spraying grid device according to claim 1 for denitrating flue gas, it is characterised in that: further include for fixing
The stiffening ring of the expansion joint.
6. the ammonia-spraying grid device according to claim 1 for denitrating flue gas, it is characterised in that: each described spray head
Jet direction it is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820867117.3U CN208694708U (en) | 2018-06-06 | 2018-06-06 | Ammonia-spraying grid device for denitrating flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820867117.3U CN208694708U (en) | 2018-06-06 | 2018-06-06 | Ammonia-spraying grid device for denitrating flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208694708U true CN208694708U (en) | 2019-04-05 |
Family
ID=65934876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820867117.3U Active CN208694708U (en) | 2018-06-06 | 2018-06-06 | Ammonia-spraying grid device for denitrating flue gas |
Country Status (1)
| Country | Link |
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| CN (1) | CN208694708U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112439363A (en) * | 2019-09-05 | 2021-03-05 | 中石油吉林化工工程有限公司 | Propylene ammonia distributor |
| CN112473367A (en) * | 2020-11-10 | 2021-03-12 | 西安西热锅炉环保工程有限公司 | Support arrangement for gas unit denitration device |
-
2018
- 2018-06-06 CN CN201820867117.3U patent/CN208694708U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112439363A (en) * | 2019-09-05 | 2021-03-05 | 中石油吉林化工工程有限公司 | Propylene ammonia distributor |
| CN112473367A (en) * | 2020-11-10 | 2021-03-12 | 西安西热锅炉环保工程有限公司 | Support arrangement for gas unit denitration device |
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