CN201596454U - Flue gas mixing component and flue gas denitration system using same - Google Patents
Flue gas mixing component and flue gas denitration system using same Download PDFInfo
- Publication number
- CN201596454U CN201596454U CN2010200025542U CN201020002554U CN201596454U CN 201596454 U CN201596454 U CN 201596454U CN 2010200025542 U CN2010200025542 U CN 2010200025542U CN 201020002554 U CN201020002554 U CN 201020002554U CN 201596454 U CN201596454 U CN 201596454U
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- flue gas
- mixing component
- gas mixing
- mixing element
- utility
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Abstract
The utility model proposes a flue gas mixing component which is arranged in a flue gas denitration system and has better dispersion effect, wherein the lee face of the mixing component is a concave face. The utility model also provides the flue gas denitration system using the flue gas mixing component, wherein the mixing component is arranged in a pipeline of a mixing part of flue gas and reducing gas of the flue gas denitration system; the mixing component is slantingly arranged in the pipeline; the lee face of the mixing component is the concave face and faces to a nozzle of a reducer spray pipe, and the windward face of the mixing component faces to the flowing direction of the flue gas; therefore, when the reducer is sprayed on the lee face of mixing component, the reducer can be dispersed into a layer of thin gas film; meanwhile, after meeting the mixing component, the flue gas is disturbed, so that the flue gas and ammonia gas can be mixed fully.
Description
Technical field
The utility model relates to the flue gases purification field, is specifically related to flue gas mixing arrangement and a kind of flue gas denitrification system in a kind of flue gas denitrification system.
Background technology
Nitrogen oxide receives increasing concern as one of main atmosphere pollution, and nitrogen oxide will become the another major fields of country's pollution control after desulfurization.The SCR gas denitrifying technology is one of gas denitrifying technology that is most widely used at present, has advantages such as denitration efficiency height, selectivity are good, stable and reliable operation.The key of SCR technology, the one, catalyst; The 2nd, whether uniform Flow Field Distribution is arranged, i.e. NH in the flue gas
3With NO
xUniformity.When the ammonia part is excessive, can cause local the escaping of ammonia rate height, the ammonia meeting and the SO of escape
3Reacting generating salt, the corrosion upstream device; Ammonia part NO can occur when local deficiency
xThe result who is not reduced influences denitration efficiency.
Publication number is to disclose a kind of denitrating flue gas vortex mixer and eddy current mixed method in the Chinese utility application Publication Specification of CN101342457A, wherein the lee side of hybrid element is planar design, reducing agent ammonia forms eddy current on from the nozzle ejection to the hybrid element, evenly disperses.But the dispersion effect of this hybrid element is unsatisfactory.
The utility model content
In view of this, in order to address the above problem, for this reason, the utility model proposes the flue gas mixing element in the better flue gas denitrification system of a kind of dispersion effect.
The purpose of this utility model is achieved in that flue gas mixing element, and the lee side of described flue gas mixing element is a concave surface.
Further, described flue gas mixing element is made by carbon steel;
Further, the stoss side of described flue gas mixing element is a convex surface.
The utility model also provides the flue gas denitrification system that uses above-mentioned flue gas mixing element, the flue gas of described flue gas denitrification system mixes with reducing gas in the pipeline of portion and is provided with flue gas mixing element, described flue gas mixing element is inclined in the pipeline, the lee side of flue gas mixing element is a concave surface and relative with the spout of reducing agent jet pipe, and the stoss side of flue gas mixing element is relative with the flow direction of flue gas.
Further, described flue gas mixing element is fixed in inner-walls of duct by brace summer.
The utility model is with respect to prior art, has following advantage: when gas impacts plane or convex surface, can form disorderly air-flow, and in the utility model, when concave panel is arrived in the reducing agent gas shock, can form one deck large tracts of land, and thin evenly air film, and flue gas can form disturbance when impacting the lee side of convex, more helps mixing.
Other advantages of the present utility model, target, to set forth in the following description to a certain extent with feature, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can from practice of the present utility model, obtain instruction to investigating hereinafter.Target of the present utility model and other advantages can be passed through following specification, claims, and the specifically noted structure realizes and obtains in the accompanying drawing.
Description of drawings
In order to make the purpose of this utility model, technical scheme and advantage clearer, the utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 shows the structural representation that uses the utility model flue gas denitrification system.
The specific embodiment
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.
Referring to Fig. 1, the flue gas of flue gas denitrification system mixes the pipeline 1 of portion with reducing gas in, hybrid element 2 is set, described hybrid element 2 is fixed in pipeline 1 inwall by brace summer 3, described hybrid element 2 is an arc, be inclined in the pipeline 1, the lee side 4 of hybrid element 2 is a concave surface and relative with the spout of reducing agent jet pipe 5, and the lee side 4 of hybrid element 2 does not contact with the spout of reducing agent jet pipe 5, the stoss side 6 of hybrid element 2 is a convex, and is relative with the flow direction of flue gas.Like this, when injection of reducing agent is mapped to hybrid element 2 lee sides 4, can evenly diffuse into the very thin air film of one deck 7; After flue gas runs into the lee side 4 of hybrid element 2 simultaneously, form disturbance, thereby flue gas and ammonia mix fully.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and obviously, those skilled in the art can carry out various changes and modification and not break away from spirit and scope of the present utility model the utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (5)
1. flue gas mixing element, it is characterized in that: the lee side of described flue gas mixing element is a concave surface.
2. according to the described flue gas mixing element of claim 1, it is characterized in that: described flue gas mixing element is made by carbon steel.
3. according to claim 1 or 2 described flue gas mixing elements, it is characterized in that: the stoss side of described flue gas mixing element is a convex surface.
4. use flue gas denitrification system as flue gas mixing element as described in the claim 1,2 or 3, it is characterized in that: the flue gas of described flue gas denitrification system mixes with reducing gas in the pipeline of portion and is provided with flue gas mixing element, described flue gas mixing element is inclined in the pipeline, the lee side of flue gas mixing element is a concave surface and relative with the spout of reducing agent jet pipe, and the stoss side of flue gas mixing element is relative with the flow direction of flue gas.
5. flue gas denitrification system according to claim 4 is characterized in that: described flue gas mixing element is fixed in inner-walls of duct by brace summer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200025542U CN201596454U (en) | 2010-01-22 | 2010-01-22 | Flue gas mixing component and flue gas denitration system using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200025542U CN201596454U (en) | 2010-01-22 | 2010-01-22 | Flue gas mixing component and flue gas denitration system using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201596454U true CN201596454U (en) | 2010-10-06 |
Family
ID=42807500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200025542U Expired - Lifetime CN201596454U (en) | 2010-01-22 | 2010-01-22 | Flue gas mixing component and flue gas denitration system using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201596454U (en) |
-
2010
- 2010-01-22 CN CN2010200025542U patent/CN201596454U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101006 |
|
| CX01 | Expiry of patent term |