CN203635074U - Catalyst layer for boiler denitration - Google Patents
Catalyst layer for boiler denitration Download PDFInfo
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- CN203635074U CN203635074U CN201320738650.7U CN201320738650U CN203635074U CN 203635074 U CN203635074 U CN 203635074U CN 201320738650 U CN201320738650 U CN 201320738650U CN 203635074 U CN203635074 U CN 203635074U
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- catalyst layer
- coiled
- coiled pipe
- denitration
- utility
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Abstract
The utility model relates to a catalyst layer for boiler denitration. The catalyst layer consists of a plurality of coiled pipes which are uniformly distributed on a connecting hollow rod from top to bottom, wherein the connecting hollow rod is in sliding connection to the coiled pipes after passing through middle coiled regions of the coiled pipes; a plurality of through holes are formed in the coiled pipes; the through holes are uniformly distributed along coiled lines of the coiled pipes. The catalyst layer disclosed by the utility model creatively adopts the plurality of layers of the coiled pipes to substitute a traditional flat plate type, honeycomb type or corrugated type catalyst layer, so that under the condition that the same material is used, catalytic efficiency is improved due to large contact area between the catalyst layer and flue gas.
Description
Technical field
The utility model relates to environmental protection equipment technical field, relates in particular to a kind of Denitration in Boiler catalyst layer.
Background technology
For preventing producing too much NOx contaminated environment after coal combustion in boiler, reply coal carries out denitration processing.Be divided into the front denitration of burning, combustion process denitration, the rear denitration of burning, the desulphurization and denitration technique of boiler smoke is the important component part of process industrial, belong to the energy and environment crossing domain, due to the restriction of China's level of economic development, for the current substantially still state in treatment after pollution of atmosphere pollution.
At present, SCR (SCR) as gas cleaning mode can be obtained the NOx removal efficiency up to 90%, but there is the problem that investment is large, operating cost is high simultaneously, limit its application, and relatively cheap SNCR (SNCR) technology, in large-sized boiler uses, removal efficiency is not generally higher than 40%.
Denitration in Boiler of the prior art adopts catalytic reduction technology more, and in whole denitrification apparatus, catalyst layer is the core of whole technology, is generally divided into flat, honeycomb fashion, corrugated three kinds.These three kinds of catalyst layers are widely used in the denitrating system of various boilers.But the catalytic efficiency of these three kinds of catalyst layers is not very high, in the situation that using same material, be necessary the catalyst layer that provides a kind of catalytic efficiency high.
Utility model content
The purpose of this utility model is in order to overcome the deficiencies in the prior art, and a kind of Denitration in Boiler catalyst layer is provided.
The utility model is to be achieved through the following technical solutions:
A kind of Denitration in Boiler catalyst layer, this catalyst layer is made up of some coiled pipes, described some coiled pipes are evenly distributed on from top to down and connect in hollow stem, described connection hollow stem is slidably connected on coiled pipe through the vortex-like district, centre of coiled pipe, on described coiled pipe, be provided with multiple through holes, described through hole is uniformly distributed along the vortex-like line of coiled pipe.
As optimal technical scheme of the present utility model, described through hole is circular hole.
As optimal technical scheme of the present utility model, the diameter of described through hole is 2/3rds of coiled pipe caliber.
As optimal technical scheme of the present utility model, the quantity of described coiled pipe is 3.
Compared with prior art, the beneficial effects of the utility model are: the utility model creatively adopts multilayer coiled pipe to replace traditional flat, honeycomb fashion, corrugated catalyst layer, using same material in the situation that, because itself and flue gas contact area are large, improving catalytic efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, Fig. 1 is structural representation of the present utility model.
Described a kind of Denitration in Boiler catalyst layer, this catalyst layer is made up of 3 coiled pipes 1, described 3 coiled pipes 1 are evenly distributed on from top to down and connect in hollow stem 2, described connection hollow stem 2 is slidably connected on coiled pipe 1 through the vortex-like district, centre of coiled pipe 1, on described coiled pipe 1, be provided with multiple through holes 3, described through hole 3 is uniformly distributed along the vortex-like line of coiled pipe 1.
Described through hole 3 is circular hole, and the diameter of described through hole 3 is 2/3rds of coiled pipe 1 caliber.
The utility model creatively adopts multilayer coiled pipe to replace traditional flat, honeycomb fashion, corrugated catalyst layer, flue gas is first through upper strata coiled pipe 1, flow through from the gap of through hole 3 and coiled pipe 1 coiled pipe 1 in intermediate layer, last root coiled pipe 1 of flowing through again, after three coiled pipes 1, catalytic desulfurization successful improves.Using same material in the situation that, because itself and flue gas contact area are large, improving catalytic efficiency.
Claims (4)
1. a Denitration in Boiler catalyst layer, it is characterized in that, this catalyst layer is made up of some coiled pipes (1), described some coiled pipes (1) are evenly distributed on from top to down and connect in hollow stem (2), described connection hollow stem (2) is slidably connected on coiled pipe (1) through the vortex-like district, centre of coiled pipe (1), on described coiled pipe (1), be provided with multiple through holes (3), described through hole (3) is uniformly distributed along the vortex-like line of coiled pipe (1).
2. a kind of Denitration in Boiler catalyst layer according to claim 1, is characterized in that, described through hole (3) is circular hole.
3. a kind of Denitration in Boiler catalyst layer according to claim 2, is characterized in that, the diameter of described through hole (3) is 2/3rds of coiled pipe (1) caliber.
4. a kind of Denitration in Boiler catalyst layer according to claim 1, is characterized in that, the quantity of described coiled pipe (1) is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320738650.7U CN203635074U (en) | 2013-11-22 | 2013-11-22 | Catalyst layer for boiler denitration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320738650.7U CN203635074U (en) | 2013-11-22 | 2013-11-22 | Catalyst layer for boiler denitration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203635074U true CN203635074U (en) | 2014-06-11 |
Family
ID=50866358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320738650.7U Expired - Fee Related CN203635074U (en) | 2013-11-22 | 2013-11-22 | Catalyst layer for boiler denitration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203635074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759205A (en) * | 2015-03-18 | 2015-07-08 | 山东大学 | High-temperature air duct denitration reactor and method therewith for denitration |
-
2013
- 2013-11-22 CN CN201320738650.7U patent/CN203635074U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759205A (en) * | 2015-03-18 | 2015-07-08 | 山东大学 | High-temperature air duct denitration reactor and method therewith for denitration |
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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 |
Granted publication date: 20140611 Termination date: 20141122 |
|
| EXPY | Termination of patent right or utility model |