CN203355569U - Inlet smoke uniform distribution device for wet desulphurization absorption tower - Google Patents
Inlet smoke uniform distribution device for wet desulphurization absorption tower Download PDFInfo
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- CN203355569U CN203355569U CN2013203393677U CN201320339367U CN203355569U CN 203355569 U CN203355569 U CN 203355569U CN 2013203393677 U CN2013203393677 U CN 2013203393677U CN 201320339367 U CN201320339367 U CN 201320339367U CN 203355569 U CN203355569 U CN 203355569U
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- smoke
- absorption tower
- grid
- wet desulphurization
- distribution device
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Abstract
The utility model relates to an inlet smoke uniform distribution device for a wet desulphurization absorption tower, which comprises an inlet smoke passage and spraying layers, wherein a layer of wind averaging grid is arranged between the inlet smoke passage and the spraying layers; a plurality of guide plates are arranged on the wind averaging grid. The guide plates divide the smoke firstly, and the uniform smoke distribution in each division is finished by the wind averaging grid; the purpose of uniform smoke distribution can be achieved by incompletely relying on the resistance force of the wind averaging grid; the uniformly distributed smoke is uniformly and fully contacted with serous fluid sprayed by the spraying layers, the gas-liquid contact area is increased, so that under the same design parameter, the desulfuration efficiency of the smoke is improved; meanwhile the transfer resistance of the gas phase and the liquid phase is reduced, the desulfuration efficiency is improved, and meanwhile the increased smoke resistance of an absorption tower is not too large.
Description
Technical field
The utility model relates to the even distribution device of wet desulphurization absorption tower fume side, relate in particular to a kind of wet desulphurization absorption tower inlet flue gas even distribution device, when wet desulphurization is transformed, when running into the sulfur dioxide absorption efficiency, need to improve, but the surplus of system pressure when little applicability stronger.
Background technology
SO
2control technology mainly is divided into desulfurization and the rear desulfurization of burning in the front desulfurization of burning, burning.Before burning, desulfurization refers to fuel is processed, as coal washing, gasification, liquefaction etc.; In burning, desulfurization refers to desulfuration in furnace, as fluidized bed combustion desulfurization, furnace sorbent injection desulfurization, capturing sulfur briquette with utilize sulfur-removing additives etc.; After burning, desulfurization refers to flue gas desulfurization, and in the desulfur technology adopted both at home and abroad at present, the main method adopted remains flue gas desulfurization.And based Wet Process Flue Gas is gas liquid reaction, its desulphurization reaction speed is fast, and desulfuration efficiency is high, and calcium utilization is high, at calcium sulfur ratio, equals at 1 o'clock, can reach the desulfuration efficiency more than 90%, and the flue gas desulfurization great majority of large-scale coal-fired power station boiler adopt this technique.According to International Energy Agency coal research tissue statistics, wet desulphurization account for the world install flue gas desulfurization the unit total capacity 85%.
1) limestone/gypsum wet flue gas desulphurization SO
2absorb double-film theory
In the limestone/gypsum wet flue gas desulphurization process, SO
2absorption mechanism multiple different theory is arranged, wherein most widely used is double-film theory.Briefly introduce SO in the limestone/gypsum wet flue gas desulphurization process below in conjunction with double-film theory
2absorption process.SO
2the double-film theory model absorbed as shown in Figure 1.Can see that by figure it is to affect the very crucial factor of desulfuration efficiency that the increase gas-liquid connects true area.
2) more and more stricter along with the Environmental Protection in China standard, original Limestone-gypsum Wet Flue Gas Desulfurization Process system all can not meet the requirement of qualified discharge, and during the desulphurization system transformation, technology commonly used has the increase liquid-gas ratio, increases gas-liquid and connects true area and connect the true time etc.Usually the research of wet desulphurization absorption tower is found, uniform by coverage rate and nozzle, adopt the method such as hollow cone nozzle to make the slurries side uniform as far as possible.And fume side is not uniform at ground floor and the second layer spraying layer conversion zone utmost point, has reduced gas-liquid and connect true area, thereby affected smoke desulfurization efficiency.In order to make fume side uniform, method commonly used is exactly, below the ground floor spray, the alloy pallet is set.But alloy pallet resistance is large, about 800Pa, perforate is small and dense, easily fouling on pallet.
The utility model content
The purpose of this utility model is to overcome the problems referred to above, for the alloy pallet, provides a kind of wet desulphurization absorption tower inlet flue gas even distribution device, when improving the uniform effect of original desulphurization system fume side, can make SR increase not too large.
The utility model is achieved through the following technical solutions:
A kind of wet desulphurization absorption tower inlet flue gas even distribution device, comprise gas approach, spraying layer, establishes the equal style grid of one deck between gas approach and spraying layer, and all the style grid are provided with a plurality of deflectors.
Described deflector is the flap to the smoke inlet bending.
Its first half of described deflector is divided into a plurality of parts by equal style grid, and its latter half is distributed in gas approach.
Described equal style grid are fixed in wet desulphurization absorption tower by mounting rail.
Deflector is first by the flue gas subregion, and the flue gas even distribution of each subregion is completed by equal style grid.Not exclusively the resistance of the uniform grid of dependence reaches the purpose of flue gas even distribution.Flue gas after uniform fully contacts with the slurries under spraying layer sprays equably, has increased the area of gas-liquid contact, thereby, under identical design parameter, the desulfuration efficiency of flue gas improves.The transmission resistance of gas phase and liquid phase reduces simultaneously, and when improving desulfuration efficiency, the flue gas resistance that absorption tower increases is not too large.
The accompanying drawing explanation
Fig. 1 is this gas-liquid contact double-film theory schematic diagram;
Fig. 2 is structure drawing of device of the present utility model;
Fig. 3 is equal style grid structure chart;
Fig. 4 deflector and equal style grid structure chart;
Wherein, 1. deflector, 2. all style grid, 3. gas approach, 4. spraying layer.
The specific embodiment
Below in conjunction with Figure of description, describe in detail
A kind of wet desulphurization absorption tower inlet flue gas even distribution device, comprise gas approach 3, spraying layer 4, at gas approach 3 and 4 of spraying layers, establishes the equal style grid 2 of one deck, and all style grid 2 are provided with a plurality of deflectors 1.
The setting of deflector 2 designs and arranges by flow field simulation software, and 3-5 deflectors can be set, and makes flue gas carry out subregion, and guarantees that the exhaust gas volumn of each subregion is directly proportional to Division area.Every deflector should and be divided equally grid and install complete, solid with the absorbing tower wall.
All style grid 1 adopt 40mm * 40mm substantially, and the wide 10mm that gets of grid gear, arrange according to the layout sub-module of mounting rail, and the specification size of each module is determined in conjunction with the layout of mounting rail, with mounting rail, adopts bolt-connection.
Carry out preservative treatment after mounting rail and the welding of absorbing tower wall.
After flue gas enters the gas approach 3 shown in Fig. 1, by deflector 1, first by the flue gas subregion, the flue gas even distribution of each subregion is completed by equal style grid 2.Flue gas after uniform fully contacts with the slurries under spraying layer 4 sprays equably.
Claims (4)
1. a wet desulphurization absorption tower inlet flue gas even distribution device, comprise gas approach, spraying layer, it is characterized in that, establishes the equal style grid of one deck between gas approach and spraying layer, and all the style grid are provided with a plurality of deflectors.
2. a kind of wet desulphurization absorption tower inlet flue gas even distribution device according to claim 1, is characterized in that, described deflector is the flap to the smoke inlet bending.
3. a kind of wet desulphurization absorption tower inlet flue gas even distribution device according to claim 1, is characterized in that, its first half of described deflector is divided into a plurality of parts by equal style grid, and its latter half is distributed in gas approach.
4. a kind of wet desulphurization absorption tower inlet flue gas even distribution device according to claim 1, is characterized in that, described equal style grid are fixed in wet desulphurization absorption tower by mounting rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203393677U CN203355569U (en) | 2013-06-13 | 2013-06-13 | Inlet smoke uniform distribution device for wet desulphurization absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203393677U CN203355569U (en) | 2013-06-13 | 2013-06-13 | Inlet smoke uniform distribution device for wet desulphurization absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203355569U true CN203355569U (en) | 2013-12-25 |
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ID=49803394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203393677U Expired - Fee Related CN203355569U (en) | 2013-06-13 | 2013-06-13 | Inlet smoke uniform distribution device for wet desulphurization absorption tower |
Country Status (1)
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| CN (1) | CN203355569U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941402A (en) * | 2015-05-27 | 2015-09-30 | 中国华电工程(集团)有限公司 | Method for determining pressure drop loss of smoke of flow equalizing plate of spraying tower |
| CN105498458A (en) * | 2015-12-28 | 2016-04-20 | 上海迪夫格环境科技有限公司 | Efficient removal device for combined pollutants |
| CN109420423A (en) * | 2017-08-21 | 2019-03-05 | 南京凯盛国际工程有限公司 | A kind of novel desulphurization absorption tower high-temperature flue gas even distribution device |
-
2013
- 2013-06-13 CN CN2013203393677U patent/CN203355569U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941402A (en) * | 2015-05-27 | 2015-09-30 | 中国华电工程(集团)有限公司 | Method for determining pressure drop loss of smoke of flow equalizing plate of spraying tower |
| CN105498458A (en) * | 2015-12-28 | 2016-04-20 | 上海迪夫格环境科技有限公司 | Efficient removal device for combined pollutants |
| CN109420423A (en) * | 2017-08-21 | 2019-03-05 | 南京凯盛国际工程有限公司 | A kind of novel desulphurization absorption tower high-temperature flue gas even distribution device |
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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: 20131225 Termination date: 20150613 |
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| EXPY | Termination of patent right or utility model |