CN104525372A - Fine particle electric coagulation apparatus - Google Patents
Fine particle electric coagulation apparatus Download PDFInfo
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- CN104525372A CN104525372A CN201410722615.5A CN201410722615A CN104525372A CN 104525372 A CN104525372 A CN 104525372A CN 201410722615 A CN201410722615 A CN 201410722615A CN 104525372 A CN104525372 A CN 104525372A
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Abstract
The invention relates to a fine particle electric coagulation apparatus, which is characterized in that the fine particle electric coagulation apparatus is positioned at front part of an electric precipitator or a bag-type dust remover, the fine particle electric coagulation apparatus is assembled by combining more than one basic module, each basic module is composed of electric-charge unit and a polymerization unit through connection; the polymerization unit comprises two forms of flow-disturbing polymerization and alternating electric field polymerization, the polymerization unit with flue gas passing through a first stage basic module employing a flow-disturbing polymerization structure, the polymerization unit for a secondary basic module and a third basic module employ an alternating electric field structure; each electric-charge unit is composed of a casing, a corona electrode, an earth electrode, a positive DC high voltage power supply and a negative DC high voltage power supply, a heteropolar coagulation electric field is employed, an end of the earth electrode is designed as a Y-shaped dovetail shape, the adjacent two polar plates form a Venturi structure, flue gas flow-disturbing is generated under Venturi effect, collision and polymerization are carried out on different charged particles, and the fine particle electric coagulation apparatus increases the dedusting efficiency of the electric precipitator and the bag-type dust remover.
Description
Technical field
The invention belongs to field of environment engineering technology, be specifically related to a kind of fine particle coagulation and device.
Background technology
Metallurgy, electric power and other industrial furnace produce a large amount of exhaust gas dusts in production run process.At present, the removal of industrial dust mainly utilizes the cleaner such as electric cleaner, sack cleaner to realize.Although existing electric cleaner and sack cleaner can up to 99.9% to the arresting efficiency of dust.But for fine particle, particularly particle diameter is at the submicron particles of 0.1-1 μm, and efficiency of dust collection is less than 85%.These fine particle serious environment pollutions, and cause haze weather.
Coalescence is subparticle collision or adhesion mutually under external force, forms the process of larger particles.Common mainly contains: aerosol temperature-raising method, sound wave coalescence method, pulsation degassing method and coagulation method etc.Wherein coagulation method first makes particle charged through heteropolarity, in motion subsequently, the charges of different polarity attract each other, and particle is collided mutually, is polymerized.A kind of technical method higher and feasible for industrial smoke governance efficiency.Current coagulation method mainly comprises following four kinds: the coalescence of same polarity Charged in DC electric field; The coalescence of heteropolarity Charged in DC electric field; The coalescence of same polarity Charged in alternating electric field; The coalescence of heteropolarity Charged in alternating electric field.Wherein, in DC electric field and alternating electric field, the coalescence of heteropolarity Charged is the method that efficiency is higher.But existing coagulation apparatus design are simple, and subparticle can not be fully charged in the charged stage, fully can not collide again at the different charged particles of polymerization stage lotus subsequently, be polymerized, cause coalescence efficiency lower.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of this invention is to provide a kind of fine particle coagulation and device, improving electric cleaner or sack cleaner efficiency of dust collection.
For achieving the above object, the present invention adopts following technical scheme:
A kind of fine particle coagulation device, fine particle coagulation device 1 are positioned at electric cleaner or sack cleaner 2 is anterior, fine particle coagulation device 1 are combined by more than one basic module 16 and are assembled, and each basic module 16 is connected to form by charge unit and polymerized unit;
Described polymerized unit is divided into flow-disturbing polymerized unit 4 and alternating electric field polymerized unit 6 two kinds of forms, and the polymerization of the one-level basic module 16 that flue gas passes through adopts flow-disturbing polymerized unit 4, and the polymerization for secondary or three grades of basic modules 16 adopts alternating electric field unit 6;
Described flow-disturbing polymerized unit 4 forms body structure by housing, and the charged particle carried out in the turbulent flue gas of casing collides mutually, thus produces polymerization.
Described alternation polymerized unit 6 is made up of housing, alternation plate electrode 11, alternation plate electrode 11 connects ac high voltage source 14, wherein alternation plate electrode 11 is positioned at housing central section and both sides housing sidewall and coordinates alternating electric field, and it is of reciprocating vibration that alternating electric field can make charged particle produce;
Described each charge unit is by housing 7, corona discharge electrode 8, earthing pole 9, positive direct-current high voltage source 12 and negative dc high voltage power supply 13 form, adopt heteropolarity coalescence electric field, namely the charged region of fine particle is with just, negative equidistant spaced apart electric field channel composition, arrange in each passage that number row corona wire forms corona discharge electrode 8, adjacent two row's corona discharge electrodes 8 connect positive direct-current high voltage source 12 respectively, negative dc high voltage power supply 13, the centre of adjacent two row's corona discharge electrodes 8 is shared earthing pole 9 plates, corona field is formed between itself and corona discharge electrode 8, port number in each charge unit should be even number, minimum is 2.
The fine particle coagulation that more than two basic modules 16 are connected into device 1, should misplace with the positive and negative corona wire passage of charge unit in each basic module 16 when charge unit arranges positive and negative corona wire passage in secondary basic module 16 and arrange, namely secondary basic module 16 positive corona passage answers negative corona passage in corresponding one-level basic module 16.
The tip designs of described earthing pole 9 is " Y " type swallowtail shape 10, and two adjacent pole plates form Venturi tube structure.
Described basic module 16 is by the adpting flange bolt at each basic module 16 two ends, nut and pad assembly connection.
Advantage of the present invention is: the probability that traditional electrical coalescence device adopts turbulence columns structure increase electrically charged particle mutually to collide, but charged particle and turbulence columns can cause while colliding particle the loss of charged lotus, thus cause coalescence efficiency to decline, the passage that flow-disturbing polymerized unit 4 of the present invention is made up of shell structure, the Venturi tube structure that particle charged in the charge unit of front end is formed by earthing pole postlaminar part " Y " shape dovetail, flue gas generation flow-disturbing under its venturi action, the different charge particle of lotus collides, is polymerized.Alternation polymerized unit 6 in the above elementary cell of one-level increased for coalescence efficiency need be improved, be made up of housing, alternation plate electrode 11, alternation plate electrode 11 connects ac high voltage source 14, wherein alternation plate electrode 11 is positioned at housing central section and both sides housing sidewall and coordinates alternating electric field, it is of reciprocating vibration that alternating electric field can make charged particle produce, and the probability of particle is collided mutually, being polymerized greatly increases.The present invention improves electric cleaner or sack cleaner efficiency of dust collection.
Accompanying drawing explanation
Fig. 1 is a kind of fine particle coagulation of the present invention and Plant arrangement position view.
Fig. 2 is a kind of fine particle coagulation of the present invention and device overall structure schematic diagram.
Fig. 3 is charge unit electric field lines distribution schematic diagram of the present invention.
Fig. 4 is the charged schematic diagram of charge unit electric field subparticle of the present invention.
Fig. 5 is basic module 16 flow field of the present invention schematic diagram.
Detailed description of the invention
The present invention is described in detail by reference to the accompanying drawings.
With reference to Fig. 1, a kind of fine particle coagulation device, fine particle coagulation device 1 are positioned at electric cleaner or sack cleaner 2 is anterior, coagulation is carried out to fine particle in flue gas and processes, after process, the particle diameter of fine particle significantly strengthens, and effectively can improve follow-up electric cleaner or sack cleaner 2 efficiency of dust collection.
With reference to Fig. 2, fine particle coagulation device 1 are combined by more than one basic module 16 and are assembled.Basic module 16 is connected to form by charge unit and polymerized unit.In adjacent two basic modules 16, charge unit should be respectively the first charge unit 3 and be staggeredly arranged the second charge unit 5 of positive and negative corona discharge electrode with prime.
Described polymerized unit is divided into flow-disturbing polymerized unit 4 and alternating electric field polymerized unit 6 two kinds of forms, and the polymerization of the one-level basic module 16 that flue gas passes through adopts flow-disturbing polymerized unit 4, and the polymerization for secondary or three grades of basic modules 16 adopts alternating electric field unit 6.
Described flow-disturbing polymerized unit 4 forms body structure by housing, and the charged particle carried out in the turbulent flue gas of casing collides mutually, thus produces polymerization.
With reference to Fig. 2, described alternation polymerized unit 6, be made up of housing, alternation plate electrode 11, alternation plate electrode 11 connects ac high voltage source 14, frame ground 15, wherein alternation plate electrode 11 is positioned at housing central section and both sides housing sidewall and coordinates alternating electric field, and it is of reciprocating vibration that alternating electric field can make charged particle produce, and the probability of particle is collided mutually, being polymerized greatly increases.
With reference to Fig. 3, Fig. 4, described each charge unit is by housing 7, corona discharge electrode 8, earthing pole 9, positive direct-current high voltage source 12 and negative dc high voltage power supply 13 form, adopt heteropolarity coalescence electric field, namely the charged region of fine particle is with just, negative equidistant spaced apart electric field channel composition, arrange in each passage that number row corona wire forms corona discharge electrode 8, adjacent two row's corona discharge electrodes 8 connect positive direct-current high voltage source 12 respectively, negative dc high voltage power supply 13, the centre of adjacent two row's corona discharge electrodes 8 is shared earthing pole 9 plates, corona field is formed between itself and corona discharge electrode 8, port number in each charge unit should be even number, minimum is 2, wherein half corona discharge electrode 8 connects positive direct-current high voltage source 12, all the other half corona discharge electrodes 8 connect negative dc high voltage power supply 13, interval is arranged.
The fine particle coagulation that more than two basic modules 16 are connected into device 1, should misplace with the positive and negative corona wire passage of charge unit in each basic module 16 when charge unit arranges positive and negative corona wire passage in secondary basic module 16 and arrange, namely secondary basic module 16 positive corona passage answers negative corona passage in corresponding one-level basic module 16, this kind of layout particle of being convenient to charge positive charge in one-level basic module 16 follow-up directly enter secondary basic module 16 after collide with bear charged particles, be polymerized, vice versa.
The tip designs of described earthing pole 9 is " Y " type swallowtail shape 10, and two adjacent pole plates form Venturi tube structure.
Described basic module 16 is by the adpting flange bolt at each basic module 16 two ends, nut and pad assembly connection.
Of the present invention and operation principle is:
With reference to Fig. 5, first flue gas enters the charge unit of one-level basic module 16, positive charge and negative electrical charge on lotus is distinguished in positive and negative high voltage electric field, entering polymerized unit by after earthing pole 9 plate end " Y " shape swallowtail shape 10, under its venturi action, the different charged particles of lotus collides, is polymerized.
As secondary basic module 16 can be arranged for improving coalescence efficiency.After flue gas flows out one-level basic module 16, enter the charge unit of secondary basic module 16, to misplace in the positive and negative high voltage electric field arranged positive charge and negative electrical charge on lotus respectively with one-level basic module 16 charge unit, after passing through earthing pole 9 plate end " Y " shape swallowtail shape 10, enter the alternation polymerized unit 6 being furnished with alternating electric field, under action of alternative electric field, electrically charged particle produces of reciprocating vibration, and particle collides mutually, be polymerized.
Fine particle coagulation device 1 can according to the requirements of required coalescence efficiency, utilize several basic module 16 to form secondary or the above coagulation of secondary and device.
Claims (4)
1. a fine particle coagulation device, it is characterized in that: fine particle coagulation device (1) are positioned at electric cleaner or sack cleaner (2) is anterior, fine particle coagulation device (1) are combined by more than one basic module (16) and are assembled, and each basic module (16) is connected to form by charge unit and polymerized unit;
Described polymerized unit is divided into flow-disturbing polymerized unit (4) and alternating electric field polymerized unit (6) two kinds of forms, the polymerization of the one-level basic module (16) that flue gas passes through adopts flow-disturbing polymerized unit (4), and the polymerization for secondary or three grades of basic modules (16) adopts alternating electric field unit (6);
Described flow-disturbing polymerized unit (4) forms body structure by housing, and the charged particle carried out in the turbulent flue gas of casing collides mutually, thus produces polymerization;
Described alternation polymerized unit (6) is made up of housing, alternation plate electrode (11), alternation plate electrode (11) connects ac high voltage source (14), wherein alternation plate electrode (11) is positioned at housing central section and both sides housing sidewall and coordinates alternating electric field, and it is of reciprocating vibration that alternating electric field can make charged particle produce;
Described each charge unit is by housing (7), corona discharge electrode (8), earthing pole (9), positive direct-current high voltage source (12) and negative dc high voltage power supply (13) composition, adopt heteropolarity coalescence electric field, namely the charged region of fine particle is with just, negative equidistant spaced apart electric field channel composition, arrange in each passage that number row corona wire forms corona discharge electrode (8), adjacent two rows' corona discharge electrode (8) connect positive direct-current high voltage source (12) respectively, negative dc high voltage power supply (13), the centre of adjacent two rows' corona discharge electrode (8) is shared earthing pole (9) plate, corona field is formed between itself and corona discharge electrode (8), port number in each charge unit should be even number, minimum is 2.
2. a kind of fine particle coagulation according to claim 1 device, it is characterized in that: the fine particle coagulation that more than two basic modules (16) are connected into device (1), should misplace with the positive and negative corona wire passage of charge unit in each basic module (16) when charge unit arranges positive and negative corona wire passage in secondary basic module (16) and arrange, namely secondary basic module (16) positive corona passage should the middle negative corona passage of corresponding one-level basic module (16).
3. a kind of fine particle coagulation according to claim 1 device, is characterized in that: the tip designs of described earthing pole (9) is " Y " type swallowtail shape (10), and two adjacent pole plates form Venturi tube structures.
4. a kind of fine particle coagulation according to claim 1 device, is characterized in that: described basic module (16) is by the adpting flange bolt at each basic module (16) two ends, nut and pad assembly connection.
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Cited By (12)
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| CN106607188A (en) * | 2017-01-05 | 2017-05-03 | 宁波工程学院 | Bipolar charge coagulation device for dust particles |
| CN107138016A (en) * | 2017-05-08 | 2017-09-08 | 浙江大学 | Based on many particulate matter coalescence reunion intensifying devices promoted and method |
| CN108837945A (en) * | 2018-07-27 | 2018-11-20 | 成都新能互联科技有限公司 | A kind of haze coalescence purification device and its implementation |
| CN109870392A (en) * | 2019-03-25 | 2019-06-11 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | A kind of naturally radioactive aerosol coagulation simultaneously eliminates experimental system |
| CN111715010A (en) * | 2019-03-21 | 2020-09-29 | 北京康孚科技股份有限公司 | Axial flow cyclone coagulation type air filtering method and device |
| CN111871141A (en) * | 2020-08-09 | 2020-11-03 | 盐城工学院 | Fan-shaped pipeline type ultrafine particle condenser |
| CN112285004A (en) * | 2020-09-25 | 2021-01-29 | 台州市中心医院（台州学院附属医院） | Biosafety device for flow cytometer |
| CN112718244A (en) * | 2020-12-09 | 2021-04-30 | 浙江安防职业技术学院 | Charged magnetic-electric coagulation device |
| WO2021189779A1 (en) * | 2020-03-24 | 2021-09-30 | 双良节能系统股份有限公司 | Method and apparatus for electrostatic water condensation of wet air |
| CN113813732A (en) * | 2021-09-29 | 2021-12-21 | 南京师范大学 | Reinforced coalescence and high-efficiency granular layer filtering device for ultrafine particles |
| CN114832944A (en) * | 2022-04-29 | 2022-08-02 | 中国计量大学 | High-wind-speed two-stage type electrostatic aerosol particle removing device using guide plate |
| CN115518463A (en) * | 2022-10-21 | 2022-12-27 | 大连理工大学盘锦产业技术研究院 | Device and process for reciprocating oscillation coalescence removal of fine particles in flue gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106607188A (en) * | 2017-01-05 | 2017-05-03 | 宁波工程学院 | Bipolar charge coagulation device for dust particles |
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| CN107138016A (en) * | 2017-05-08 | 2017-09-08 | 浙江大学 | Based on many particulate matter coalescence reunion intensifying devices promoted and method |
| CN108837945A (en) * | 2018-07-27 | 2018-11-20 | 成都新能互联科技有限公司 | A kind of haze coalescence purification device and its implementation |
| CN111715010A (en) * | 2019-03-21 | 2020-09-29 | 北京康孚科技股份有限公司 | Axial flow cyclone coagulation type air filtering method and device |
| CN109870392A (en) * | 2019-03-25 | 2019-06-11 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | A kind of naturally radioactive aerosol coagulation simultaneously eliminates experimental system |
| CN109870392B (en) * | 2019-03-25 | 2023-12-19 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | Natural radioactive aerosol electrocoagulation and elimination experiment system |
| WO2021189779A1 (en) * | 2020-03-24 | 2021-09-30 | 双良节能系统股份有限公司 | Method and apparatus for electrostatic water condensation of wet air |
| CN111871141A (en) * | 2020-08-09 | 2020-11-03 | 盐城工学院 | Fan-shaped pipeline type ultrafine particle condenser |
| CN112285004A (en) * | 2020-09-25 | 2021-01-29 | 台州市中心医院（台州学院附属医院） | Biosafety device for flow cytometer |
| CN112285004B (en) * | 2020-09-25 | 2023-10-10 | 台州市中心医院（台州学院附属医院） | Biosafety device for flow cytometry |
| CN112718244A (en) * | 2020-12-09 | 2021-04-30 | 浙江安防职业技术学院 | Charged magnetic-electric coagulation device |
| CN113813732A (en) * | 2021-09-29 | 2021-12-21 | 南京师范大学 | Reinforced coalescence and high-efficiency granular layer filtering device for ultrafine particles |
| CN114832944A (en) * | 2022-04-29 | 2022-08-02 | 中国计量大学 | High-wind-speed two-stage type electrostatic aerosol particle removing device using guide plate |
| CN115518463A (en) * | 2022-10-21 | 2022-12-27 | 大连理工大学盘锦产业技术研究院 | Device and process for reciprocating oscillation coalescence removal of fine particles in flue gas |
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