CN201154326Y - Double-zone dipolar corona electrostatic dust remover - Google Patents
Double-zone dipolar corona electrostatic dust remover Download PDFInfo
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- CN201154326Y CN201154326Y CNU2007200875954U CN200720087595U CN201154326Y CN 201154326 Y CN201154326 Y CN 201154326Y CN U2007200875954 U CNU2007200875954 U CN U2007200875954U CN 200720087595 U CN200720087595 U CN 200720087595U CN 201154326 Y CN201154326 Y CN 201154326Y
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Abstract
The utility model relates to a double area type dipole corona electrostatic dust remover which is composed of a dust remover casing 1, a linear corona pole 2, a dust collecting pole plate 3, a corona pole plate 4, an anti-corona pole plate 5, a direct current high voltage power supply 6 and a direct current and negative high voltage power supply 7. The linear corona pole 2 and the dust collecting pole plate 3 form a dust pre-collecting area, the linear corona pole 2 is connected with the high voltage terminal of the direct current and negative high voltage power supply 7, and the dust collecting pole plate 3 is grounded; the corona pole plate 4 and the anti-corona pole plate 5 form a secondary dust collecting area, the corona pole plate 4 is connected with the high voltage terminal of the direct current high voltage power supply 6, and the anti-corona pole plate 5 is grounded. The corona pole plate 4 and the anti-corona pole plate 5 are of plate shapes, and burrs are installed on the plates, the burrs on the corona pole plate 4 and the burrs on the anti-corona pole plate 5 are arranged in a mutually staggered way; the dust pre-collecting area and the secondary dust collecting area are arranged in the air flow direction in sequence. The double area type dipole corona electrostatic dust remover has the advantages that the collection efficiency of the superfine dust is high, the structure is simple, and the running is reliable.
Description
Technical field
The utility model relates to a kind of dual zone type dipole corona electrostatic dust-proof device, particularly about being used for purifying a kind of dual zone type dipole corona electrostatic dust-proof device of subparticle pollutant.
Background technology
Electrostatic precipitator is one of important deduster of collecting in dust in the flue gas, being most widely used of its center line-board-like electrostatic precipitator.Electrostatic precipitator is compared with the deduster of other type, have resistance little, the power consumption less, the collection efficiency advantages of higher, but it is for fine dust, its collection efficiency not high (towards dawn east. electrocoagulation dedusting theory and application technical research. Northeastern University, 2003), in addition, the board-like electrostatic precipitator of traditional wire be difficult to reach increasingly stringent environmental protection standard (Zhao Yi etc. sack cleaner is in the application and the prospect of coal-burning power plant. North China Electric Power University's journal, 2003,30 (6): 90-93).Therefore study and develop the electrostatic precipitator that efficiently to collect fine dust and have crucial meaning.
Summary of the invention
Task of the present utility model provides a kind of collection efficiency height to fine dust, simple in structure, reliable dual zone type dipole corona electrostatic dust-proof device.
For realizing above-mentioned task, the technical solution adopted in the utility model is: this device is made up of deduster shell, linear corona discharge electrode, dust collecting pole plate, corona pole plate, anti-corona pole plate, DC high-voltage power supply, negative direct current high voltage power supply, linear corona discharge electrode and dust collecting pole plate are formed pre-dust collection section, and corona pole plate and anti-corona pole plate are formed the secondary dust collection section.The high-pressure side of linear corona discharge electrode and negative direct current high voltage power supply links, dust collecting pole plate ground connection; The high-pressure side of corona pole plate and DC high-voltage power supply links, anti-corona discharge electrode plate earthing.
Wherein: corona pole plate and anti-corona pole plate are tabular, and prickle all is installed, and the prickle on prickle on the corona pole plate and the anti-corona pole plate is staggeredly arranged; Pre-dust collection section, secondary dust collection section are arranged successively along airflow direction.
Because adopt technique scheme, linear corona discharge electrode of the present utility model and corona pole plate all apply high direct voltage, dust collecting pole plate and the equal ground connection of anti-corona pole plate.The ash-laden gas of high concentration at first enters pre-dust collection section, and most dust are collected in this district down, the dust of larger particles especially, and the fine dust that collection at large gets off enters the secondary dust collection section.At this dust collection section, prickle on prickle on the corona pole plate and the anti-corona pole plate produces corona discharge and anti-electric-corona discharge, form a large amount of positive and negative ion and ion wind, dust in positive and negative ion and the electric field bumps, make dust charged, under the effect of ion wind and electric field force, fine dust generation frequent impact, coalescence, and, promptly be captured down after reaching corona pole plate and anti-corona pole plate to the motion of corona pole plate and anti-corona pole plate.
The advantage that the utmost point of the present utility model is joined form is: 1) at the secondary dust collection section, utilize DC high-voltage power supply can produce positive corona and negative corona discharge simultaneously, thereby can make the dust in the electric field realize that dipole is charged, and produce negative ions wind; 2) the charged fine dust of dipole has improved the coalescence effect to fine dust greatly because frequent collision takes place under the effect of ion wind and electric field force; 3) the utility model adopts dual zone type, proparea along airflow direction is pre-dust collection section, back zone along airflow direction is the secondary dust collection section, oarse-grained dust is captured down at pre-dust collection section basically, and fine dust enters the secondary dust collection section, produce coalescence, and under the effect of ion wind and electric field force, be captured down; 4) because most dust are captured down at pre-dust collection section, have alleviated the sticking ash of prickle on secondary dust collection section corona pole plate and anti-corona pole plate, thereby can prolong the cycle of secondary dust collection section deashing; 5) the utility model is simple in structure, and is easy to maintenance, easily transforms on existing electrostatic precipitator, helps promoting and industrialization.Therefore, the utlity model has the collection efficiency height to fine dust, simple in structure, reliable characteristics.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
The specific embodiment
The utility model will be further described below in conjunction with the drawings and specific embodiments.
A kind of dual zone type dipole corona electrostatic dust-proof device.This device is made up of deduster shell 1, linear corona discharge electrode 2, dust collecting pole plate 3, corona pole plate 4, anti-corona pole plate 5, DC high-voltage power supply 6, negative direct current high voltage power supply 7 as shown in Figure 1.Linear corona discharge electrode 2 and dust collecting pole plate 3 are formed pre-dust collection section, and linear corona discharge electrode 2 links dust collecting pole plate 3 ground connection with the high-pressure side of negative direct current high voltage power supply 7; Corona pole plate 4 is formed the secondary dust collection section with anti-corona pole plate 5, and corona pole plate 4 links anti-corona pole plate 5 ground connection with the high-pressure side of DC high-voltage power supply 6.
Wherein: corona pole plate 4 and anti-corona pole plate 5 are tabular, and prickle all is installed, and the prickle on prickle on the corona pole plate 4 and the anti-corona pole plate 5 is staggeredly arranged; Pre-dust collection section, secondary dust collection section are arranged successively along airflow direction.
The linear corona discharge electrode 2 and the corona pole plate 4 of present embodiment all apply high direct voltage, dust collecting pole plate 3 and anti-corona pole plate 5 equal ground connection.At pre-dust collection section, produce corona discharge after linear corona discharge electrode 2 applies negative high voltage, make the dust that enters pre-dust collection section charged, and under the effect of electric field force to dust collecting pole plate 3 motion, promptly be collected after reaching dust collecting pole plate 3.The ash-laden gas of high concentration is during by pre-dust collection section, and most dust are captured down, and those are not collected the fine dust that gets off and enter the secondary dust collection section.At the secondary dust collection section, during corona pole plate 4 applies negative (or just) high pressure, prickle on it forms negative (or just) corona discharge, produce a large amount of negative (or just) ions, and stronger negative (or just) ion wind of formation, and the prickle on the anti-corona pole plate 5 of ground connection is (or negative) corona discharge just to produce a large amount of just (or negative) ions at this moment, produces stronger just (or bearing) ion wind simultaneously.When the electric field of fine dust by forming by corona pole plate 4 and anti-corona pole plate 5, bump with positive and negative ion a large amount of in the electric field, thereby a part of dust is become positively charged, and negative electricity on another part dust band.Under the effect of ion wind and electric field force, electronegative dust is to anti-corona pole plate 5 motions, and the dust of positively charged is to 4 motions of corona pole plate, owing to bump continually, coalescence easily takes place in the fine dust of the band charges of different polarity and particle diameter becomes big, and is collected down in this district.
The advantage of this device is: 1) proparea of this device is pre-dust collection section, and the back zone is the secondary dust collection section, and the bigger dust of particle is captured down at pre-dust collection section, and fine dust is collected under the effect of ion wind and electric field force down when entering the secondary dust collection section; 2), utilize DC high-voltage power supply 6 can produce positive corona and negative corona discharge simultaneously, thereby can make the dust in the electric field realize that dipole is charged, and form positive and negative ion wind at the secondary dust collection section; 3) sticking grey degree is effectively alleviated on the secondary dust collection section prickle, thereby has prolonged cleaning cycle; 4) simple in structure, easy to maintenance, and easily on existing electrostatic precipitator, transform, help promoting and industrialization.
This specific embodiment can improve the collection efficiency to fine dust effectively, and has simple in structure, reliable characteristics.
Claims (3)
1, a kind of dual zone type dipole corona electrostatic dust-proof device is characterized in that this device is made up of deduster shell (1), linear corona discharge electrode (2), dust collecting pole plate (3), corona pole plate (4), anti-corona pole plate (5), DC high-voltage power supply (6), negative direct current high voltage power supply (7); Linear corona discharge electrode (2) and dust collecting pole plate (3) are formed pre-dust collection section, and linear corona discharge electrode (2) links dust collecting pole plate (3) ground connection with the high-pressure side of negative direct current high voltage power supply (7); Corona pole plate (4) is formed the secondary dust collection section with anti-corona pole plate (5), and corona pole plate (4) links anti-corona pole plate (5) ground connection with the high-pressure side of DC high-voltage power supply (6).
2, dual zone type dipole corona electrostatic dust-proof device according to claim 1, it is characterized in that corona pole plate (4) and anti-corona pole plate (5) are tabular, and prickle all is installed, the prickle on prickle on the corona pole plate (4) and the anti-corona pole plate (5) is staggeredly arranged.
3, dual zone type dipole corona electrostatic dust-proof device according to claim 1 is characterized in that pre-dust collection section, secondary dust collection section arrange successively along airflow direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNU2007200875954U CN201154326Y (en) | 2007-10-18 | 2007-10-18 | Double-zone dipolar corona electrostatic dust remover |
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CNU2007200875954U CN201154326Y (en) | 2007-10-18 | 2007-10-18 | Double-zone dipolar corona electrostatic dust remover |
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CN201154326Y true CN201154326Y (en) | 2008-11-26 |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101869872A (en) * | 2010-05-17 | 2010-10-27 | 华北电力大学 | Bipolar charge reinforced fine particle aggregation device |
CN102836784A (en) * | 2012-07-17 | 2012-12-26 | 福建龙净环保股份有限公司 | Corona electrode structure of electric dust removal area and electric dust remover thereof |
CN102872976A (en) * | 2012-09-26 | 2013-01-16 | 东北大学 | Double-zone multistage electrostatic dust collector with charged cold anode and application method thereof |
CN103341407A (en) * | 2013-06-06 | 2013-10-09 | 大连海事大学 | Primary particulate diffusion eliminating method and apparatus thereof |
CN103657851A (en) * | 2013-11-25 | 2014-03-26 | 张家港市保丽洁环保科技有限公司 | Electrostatic oil fume purifying device with coagulation electric field |
CN113798063A (en) * | 2021-11-19 | 2021-12-17 | 秦皇岛市桑格电气控制设备有限公司 | Novel environment-friendly electrostatic dust collector and application thereof |
-
2007
- 2007-10-18 CN CNU2007200875954U patent/CN201154326Y/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101869872A (en) * | 2010-05-17 | 2010-10-27 | 华北电力大学 | Bipolar charge reinforced fine particle aggregation device |
CN102836784A (en) * | 2012-07-17 | 2012-12-26 | 福建龙净环保股份有限公司 | Corona electrode structure of electric dust removal area and electric dust remover thereof |
CN102872976A (en) * | 2012-09-26 | 2013-01-16 | 东北大学 | Double-zone multistage electrostatic dust collector with charged cold anode and application method thereof |
CN103341407A (en) * | 2013-06-06 | 2013-10-09 | 大连海事大学 | Primary particulate diffusion eliminating method and apparatus thereof |
CN103657851A (en) * | 2013-11-25 | 2014-03-26 | 张家港市保丽洁环保科技有限公司 | Electrostatic oil fume purifying device with coagulation electric field |
CN103657851B (en) * | 2013-11-25 | 2016-08-31 | 江苏保丽洁环境科技股份有限公司 | Electrostatic oil fume purification device with coalescence electric field |
CN113798063A (en) * | 2021-11-19 | 2021-12-17 | 秦皇岛市桑格电气控制设备有限公司 | Novel environment-friendly electrostatic dust collector and application thereof |
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Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081126 Termination date: 20091118 |