CN201735313U - Flue gas mixing component and flue gas denitration system - Google Patents
Flue gas mixing component and flue gas denitration system Download PDFInfo
- Publication number
- CN201735313U CN201735313U CN2010202079481U CN201020207948U CN201735313U CN 201735313 U CN201735313 U CN 201735313U CN 2010202079481 U CN2010202079481 U CN 2010202079481U CN 201020207948 U CN201020207948 U CN 201020207948U CN 201735313 U CN201735313 U CN 201735313U
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- flue gas
- mixing component
- gas mixing
- mixing element
- utility
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Abstract
The utility model provides a flue gas mixing component with optimum dispersion effect in a flue gas denitration system, and the lee side of a mixing component adopts a convex surface. The utility model further provides a flue gas denitration system employing the flue gas mixing component, the mixing component is arranged in a pipeline of a flue gas and reducing gas mixing part of the flue gas denitration system and is obliquely arranged in the pipeline; the lee side of the mixing component adopts a convex surface and is opposite to a jet of a reducing agent spray pipe, and a stoss side of the mixing component is opposite to the flowing direction of flue gas; in this way, when sprayed to the lee side of the mixing component, reducing agent is reflected by the convex surface to form divergent reflection airflow; and substantial eddy is formed when the flue gas impacts on the planar stoss side, so that the flue gas and ammonia gas are fully mixed.
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 convex surface.
Further, described flue gas mixing element is made by carbon steel;
Further, the stoss side of described flue gas mixing element is the plane.
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 convex 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 the lee side of convex is arrived in the reducing agent gas shock, can form the reflected gas stream of divergent shape, and flue gas is when impacting the stoss side of planar shaped, can form a large amount of whirlpools at the back side of stoss side, by the reflected gas stream of divergent shape and the double action of whirlpool, the mixed effect of reducing agent is better.
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, hybrid element 2 is obliquely installed, the angle of the axis of the axis of hybrid element 2 and pipeline 1 is the 30-60 degree, so that the lee side 4 of hybrid element 2 is relative with the spout of reducing agent jet pipe 5, the lee side 4 of hybrid element 2 does not contact with the spout of reducing agent jet pipe 5, the lee side 4 of hybrid element 2 is a convex surface, stoss side 6 is the plane, 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, diffused into the very big air-flow of diffusion 7 by convex surface 4 reflections; After flue gas is run into the stoss side 6 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 convex 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 the plane.
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 convex 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 |
|---|---|---|---|
| CN2010202079481U CN201735313U (en) | 2010-05-28 | 2010-05-28 | Flue gas mixing component and flue gas denitration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202079481U CN201735313U (en) | 2010-05-28 | 2010-05-28 | Flue gas mixing component and flue gas denitration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201735313U true CN201735313U (en) | 2011-02-09 |
Family
ID=43550594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202079481U Expired - Lifetime CN201735313U (en) | 2010-05-28 | 2010-05-28 | Flue gas mixing component and flue gas denitration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201735313U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856598A (en) * | 2010-05-28 | 2010-10-13 | 中电投远达环保工程有限公司 | Smoke gas mixing element and smoke gas denitration system |
-
2010
- 2010-05-28 CN CN2010202079481U patent/CN201735313U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856598A (en) * | 2010-05-28 | 2010-10-13 | 中电投远达环保工程有限公司 | Smoke gas mixing element and smoke gas denitration system |
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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: 20110209 |
|
| CX01 | Expiry of patent term |