CN2795517Y - Air flow distributor in large air flow pipeline system - Google Patents
Air flow distributor in large air flow pipeline system Download PDFInfo
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- CN2795517Y CN2795517Y CN 200520042019 CN200520042019U CN2795517Y CN 2795517 Y CN2795517 Y CN 2795517Y CN 200520042019 CN200520042019 CN 200520042019 CN 200520042019 U CN200520042019 U CN 200520042019U CN 2795517 Y CN2795517 Y CN 2795517Y
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- air flow
- airflow
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Abstract
The utility model relates to an air flow distributor in large air flow pipeline systems, which comprises a plurality of air flow distribution plates arranged according to certain distances. The utility model is characterized in that a plurality of air flow holes distributed according to certain positions are respectively arranged on the air flow distribution plates according to the trepanning mode combining lines, strips and blocks; deflective flow guiding baffle plates are arranged on lees of air flow holes in the parts of the side wall areas of the air flow distribution plates; vertical choked flow baffle plates are arranged on lees of air flow holes in the parts of the central areas of the air flow distribution plates; air flow holes on adjacent air flow distribution plates are distributed in a staggered mode. The utility model effectively realizes the even diffusion distribution of pipelines with variable diameters, makes the speed of air flow of an outlet of a pipe segment with variable diameters even, increases purifying efficiency and improves the work conditions of purifying equipment.
Description
Technical field
The utility model relates to a kind of airflow distribution device, relates in particular to the reducing pipeline section air-flow uniform distribution device in a kind of large-scale air flow duct system.
Background technique
The nonuniformity of velocity distribution will influence the purification efficiency to flue dust on the electric cleaner work section, and velocity distribution is uneven more usually, and its purification efficiency just descends many more.
It all is to carry out the transition to the working room of big section from having light-gauge ventilation duct usually that air-flow is introduced electric precipitation or sack cleaner, as not taking the necessary measures, just can influence inhomogeneous that air-flow distributes.
The distribution of large-scale electric cleaner and sack cleaner inlet air flow is very big for the purifying property influence of equipment.Generally, because the restriction of installing space etc., the ratio of the big or small open area of the reducing pipeline section of the inlet air flow of this kind equipment can reach 6-10 doubly, and the length of pipeline section only has less than 3m, and subtended angle causes reducing pipeline section airspeed widely different up to the 60-70 degree.In the heavy caliber passage, air-flow just shows strong turbulent condition when lower flow rate regime, more aggravated to cause the nonuniformity of air velocity distribution simultaneously.
The structural type of airflow-distribution board is more at present, comprises that lattice are board-like, porous type, vertical plates, sawtooth pattern, X template and vertical folded plate type etc.Wherein vertical plates, vertical folded plate type are mainly used in the pipe-line system of suction port.Air inlet reducer pipe for the center air inlet, use to such an extent that be the porous slab even distribution device the most widely at present, as shown in Figure 1, the airflow-distribution board 101 ' of this device is gone up average several big or small identical flow openings 102 ' that is provided with, because depressed structure is too simple, produce though make easily, in the using process of reality, for the very irregular occasion of some central inlet pipelines, the effect of current-sharing is very bad.
Summary of the invention
The utility model provides the airflow distribution device in a kind of large-scale air flow duct system, and the flow velocity that it can adjust large-scale electric cleaner, sack cleaner inlet air flow is evenly distributed air-flow, improves the purification efficiency to flue dust, improves working conditions.
For achieving the above object, the utility model provides the airflow distribution device in a kind of large-scale air flow duct system, and it comprises the some airflow-distribution boards that are provided with at a certain distance, is respectively arranged with the flow openings that several distribute by certain position on this airflow-distribution board; Characteristics are that described flow openings it adopt the perforate mode of line, the integration of departments and regions at different levels to be provided with, may command eddy current yardstick, the jet effect of elimination air-flow;
Flow openings lee side at airflow-distribution board limit wall area part is provided with the deflection flow apron, and it tilts along the angle of flare direction, tilt adjustable; The length of this deflection flow apron changes along the height and the width direction of pipeline;
Flow openings lee side in airflow-distribution board center region part is provided with vertical choked flow baffle plate, the percent opening of each flow openings of can regulate and corresponding resistance coefficient;
Be provided with the airflow scouring automatic ash removing device in the bottom of airflow-distribution board;
Flow openings on described adjacent two airflow-distribution boards is dislocatedly distributed, and prevents the jet short circuit.
Airflow distribution device in the large-scale air flow duct system that the utility model provides, realized the even diffusion profile of air-flow of tapered pipeline effectively, make the exit flow speed of reducing pipeline section become evenly, to meet the required best airflow distribution state of apparatus and process.
Description of drawings
Fig. 1 is the structural representation of existing reducing pipeline section air-flow uniform distribution device;
Fig. 2 is the structural representation of the airflow distribution device in the large-scale air flow duct system that provides of the utility model.
Embodiment
Following according to Fig. 2, a kind of preferred forms of the present utility model is described.
As shown in Figure 2, the structural representation that provides for the utility model; It comprises 2 airflow- distribution boards 101 and 102 that are provided with at a certain distance, is respectively arranged with the flow openings 103 that several distribute by certain position on these 2 airflow-distribution boards 101,102;
Lee side in the flow openings 103 of the limit of the airflow-distribution board 101 that is in diffusing tube front end wall area part is provided with deflection flow apron 104, and it tilts along the angle of flare direction; The length of this deflection flow apron 104 changes along the height and the width direction of pipeline;
Steering flow is along the uniform diffusion profile of diffusing tube effectively for described deflection flow apron 104, because each deflection flow apron 104 is different in size, it also has the effect of certain elimination air-flow whirlpool simultaneously;
Lee side in the flow openings 103 of the center region part of the airflow-distribution board 101 that is in the diffusing tube front end is provided with vertical choked flow baffle plate 105;
The percent opening of described vertical each flow openings 103 of choked flow baffle plate 105 can regulate, thus the resistance coefficient of each flow openings 103 regulated; Generally, the percent opening of flow openings 103 that is in airflow-distribution board 101 intermediate portions is little, and the percent opening of flow openings 103 that is in airflow-distribution board 101 limit wall sections is big;
Bottom at 2 airflow-distribution boards 101,102 is provided with airflow scouring automatic ash removing device 106;
Described 2 airflow-distribution board overdraughts perforate 103 is dislocatedly distributed, and prevents the jet short circuit.
Following according to a specific embodiment, using effect of the present utility model is described better:
Existing electric cleaner, because the equipment entrance spatial condition is very narrow, pipeline can't be arranged by more satisfactory mode, the diffusing tube subtended angle is more than 60 degree, cause the air-flow distribution situation of electric field inlet section very undesirable, by the airflow homogeneity index K of China, the uniformity test result of debug phase shows that K has reached about 40%; By implementing the utility model, the K value can be reduced to below 30%, and smoke discharge amount reduces more than 10%.
Claims (5)
1, the airflow distribution device in a kind of large-scale air flow duct system, it comprises the some airflow-distribution boards that are provided with at a certain distance, is respectively arranged with the flow openings that several distribute by certain position on this airflow-distribution board; Be characterised in that,
Described flow openings adopts the perforate mode of line, the integration of departments and regions at different levels to be provided with;
Flow openings lee side at described airflow-distribution board limit wall area part is provided with the deflection flow apron;
Flow openings lee side in described airflow-distribution board center region part is provided with vertical choked flow baffle plate.
2, the airflow distribution device in the large-scale air flow duct system as claimed in claim 1 is characterized in that, described deflection flow apron tilts along the angle of flare direction, tilt adjustable.
3, the airflow distribution device in the large-scale air flow duct system as claimed in claim 2 is characterized in that, described deflection flow apron length changes along the height and the width direction of pipeline.
4, the airflow distribution device in the large-scale air flow duct system as claimed in claim 1 is characterized in that, also is provided with the airflow scouring automatic ash removing device in the bottom of described airflow-distribution board.
5, the airflow distribution device in the large-scale air flow duct system as claimed in claim 1 is characterized in that, the flow openings on the described adjacent airflow-distribution board is dislocatedly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520042019 CN2795517Y (en) | 2005-05-31 | 2005-05-31 | Air flow distributor in large air flow pipeline system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520042019 CN2795517Y (en) | 2005-05-31 | 2005-05-31 | Air flow distributor in large air flow pipeline system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2795517Y true CN2795517Y (en) | 2006-07-12 |
Family
ID=36813272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520042019 Expired - Lifetime CN2795517Y (en) | 2005-05-31 | 2005-05-31 | Air flow distributor in large air flow pipeline system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2795517Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198426A (en) * | 2011-03-31 | 2011-09-28 | 合肥水泥研究设计院 | Multiple combined apparatus for air flow distribution board of electrostatic precipitator |
| CN102711999A (en) * | 2009-11-26 | 2012-10-03 | 阿尔斯通技术有限公司 | System and method for gas distribution measurement for electrostatic precipitator |
| CN101670252B (en) * | 2009-10-15 | 2012-12-26 | 杭州正大空分设备制造有限公司 | Labyrinth air-flow diffusion device of pressure container packed tower |
| CN104174498A (en) * | 2014-08-25 | 2014-12-03 | 上海龙净环保科技工程有限公司 | Uniform distributor for flue gas and uniform distribution method of flue gas |
| CN105170325A (en) * | 2015-10-09 | 2015-12-23 | 孙国宏 | Novel settling chamber inlet of electric precipitator |
| CN105457755A (en) * | 2015-12-30 | 2016-04-06 | 铜陵有色金属集团股份有限公司铜冠冶化分公司 | Wet type electric dust collector suitable for positive-pressure operation conditions |
| CN105597655A (en) * | 2016-03-16 | 2016-05-25 | 北京化工大学 | Gas distribution device |
| CN108758843A (en) * | 2018-04-19 | 2018-11-06 | 陕西厚亿节能环保新材料科技有限公司 | A kind of highly effective air purification air system with catalysis oxidation function |
| CN114505358A (en) * | 2022-01-23 | 2022-05-17 | 武汉宝熠德工程技术有限公司 | Brush roll and air knife combined dust removal device |
-
2005
- 2005-05-31 CN CN 200520042019 patent/CN2795517Y/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101670252B (en) * | 2009-10-15 | 2012-12-26 | 杭州正大空分设备制造有限公司 | Labyrinth air-flow diffusion device of pressure container packed tower |
| CN102711999A (en) * | 2009-11-26 | 2012-10-03 | 阿尔斯通技术有限公司 | System and method for gas distribution measurement for electrostatic precipitator |
| US8756988B2 (en) | 2009-11-26 | 2014-06-24 | Alstom Technology Ltd | System and method for gas distribution measurement for electrostatic precipitator |
| CN102711999B (en) * | 2009-11-26 | 2014-11-19 | 阿尔斯通技术有限公司 | System and method for gas distribution measurement for electrostatic precipitator |
| CN102198426A (en) * | 2011-03-31 | 2011-09-28 | 合肥水泥研究设计院 | Multiple combined apparatus for air flow distribution board of electrostatic precipitator |
| CN102198426B (en) * | 2011-03-31 | 2013-05-08 | 合肥水泥研究设计院 | Multiple combined apparatus for air flow distribution board of electrostatic precipitator |
| CN104174498A (en) * | 2014-08-25 | 2014-12-03 | 上海龙净环保科技工程有限公司 | Uniform distributor for flue gas and uniform distribution method of flue gas |
| CN104174498B (en) * | 2014-08-25 | 2016-06-29 | 上海龙净环保科技工程有限公司 | A kind of flue gas even distribution device and flue gas even distribution method |
| CN105170325A (en) * | 2015-10-09 | 2015-12-23 | 孙国宏 | Novel settling chamber inlet of electric precipitator |
| CN105457755A (en) * | 2015-12-30 | 2016-04-06 | 铜陵有色金属集团股份有限公司铜冠冶化分公司 | Wet type electric dust collector suitable for positive-pressure operation conditions |
| CN105457755B (en) * | 2015-12-30 | 2017-04-12 | 铜陵有色金属集团股份有限公司铜冠冶化分公司 | Wet type electric dust collector suitable for positive-pressure operation conditions |
| CN105597655A (en) * | 2016-03-16 | 2016-05-25 | 北京化工大学 | Gas distribution device |
| CN108758843A (en) * | 2018-04-19 | 2018-11-06 | 陕西厚亿节能环保新材料科技有限公司 | A kind of highly effective air purification air system with catalysis oxidation function |
| CN114505358A (en) * | 2022-01-23 | 2022-05-17 | 武汉宝熠德工程技术有限公司 | Brush roll and air knife combined dust removal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150531 Granted publication date: 20060712 |