CN107930851A - A kind of electrostatic precipitator - Google Patents

A kind of electrostatic precipitator Download PDF

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Publication number
CN107930851A
CN107930851A CN201711180712.6A CN201711180712A CN107930851A CN 107930851 A CN107930851 A CN 107930851A CN 201711180712 A CN201711180712 A CN 201711180712A CN 107930851 A CN107930851 A CN 107930851A
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China
Prior art keywords
electrode
negative
positive
voltage
module
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CN201711180712.6A
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Chinese (zh)
Inventor
季启政
宋博
杨铭
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514 Institute of China Academy of Space Technology of CASC
Beijing Dongfang Measurement and Test Institute
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514 Institute of China Academy of Space Technology of CASC
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Priority to CN201711180712.6A priority Critical patent/CN107930851A/en
Publication of CN107930851A publication Critical patent/CN107930851A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/01Pretreatment of the gases prior to electrostatic precipitation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02Plant or installations having external electricity supply
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34Constructional details or accessories or operation thereof
    • B03C3/40Electrode constructions
    • B03C3/41Ionising-electrodes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34Constructional details or accessories or operation thereof
    • B03C3/40Electrode constructions
    • B03C3/45Collecting-electrodes
    • B03C3/47Collecting-electrodes flat, e.g. plates, discs, gratings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing

Abstract

A kind of electrostatic precipitator provided by the invention, along inlet air direction sets gradually the charged module of positive and negative high direct voltage ionization, positive and negative particle moves toward one another the secondary powered module of coalescence module, particulate matter and grit collection module;The present invention after positive and negative high direct voltage, highfield, secondary live high voltage by collecting dust, using high working voltage, for the particulate matter of 0.1um ranks, realizes more than 99% collection efficiency.Solve the problems, such as that existing electrostatic precipitator technology cannot collect 0.1um rank particles, it is possible to achieve the purpose of particulate in air is removed in spatial dimension.

Description

A kind of electrostatic precipitator
Technical field
Patent of the present invention is related to technical field of electrostatic dust collection, and specifically, PM2.5 dust particles can be eliminated by being related to one kind Electrostatic precipitator.
Background technology
PM2.5- fine particles, are also lung particulate matter, are to be less than or equal to 2.5 to aerodynamic diameter in air The solid particle of micron or the general name of drop.These particles are very tiny, and human eye can not see that they can be in atmosphere Float a couple of days.When the content of the particulate pollutant in every cubic metres of air below 2.5 microns of diameter rises 10 microgram, long-term lung Mortality of carcinoma just rises 8%.
The air purifier of domestic production at present is substantially used to remove the harmful substances such as formaldehyde, benzene, can remove PM2.5 Air purifier it is less.Generally, the removal technology that can remove the air purifier use of PM2.5 is HEPA filter membranes.With it is quiet Electrostatic precipitation technology is compared, and HEPA technologies have larger shortcoming, and the windage of HEPA is bigger, influences ventilation fan, are not easy to coordinate it Its purification techniques is used together, and HEPA filter membranes must regularly replace, and add use cost.
And electrostatic precipitation process is:On the metal anode and cathode that two radius of curvature differ larger, pass through high straightening Galvanic electricity, maintains an electric field for being enough to make gas ionization, caused electronics after gas ionization:Anion and cation, absorption On the dust by electric field, dust is set to obtain electric charge.The different dust of charged polarity is under the action of electric field force, respectively to not The electrode movement of same polarity, deposition on the electrode, and reach dust and the separated purpose of gas.Electrostatic air cleaner only needs Periodic cleaning flabellum.
But present HEPA filter membranes and common electrostatic precipitator technology, the particle of 0.1um is less than for kinetic diameter Seizure poor effect, and harm higher of this partial particulate to human body.
Therefore, the particle that kinetic diameter in air is less than 0.1um how is removed, is imitated with reaching more preferable air purification Fruit, is those skilled in the art's technical problem urgently to be resolved hurrily.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of efficient electrostatic precipitator, for removing in air Fine particle, belong to electrostatic precipitation field.Pending air through the electrostatic precipitator processing after, can produce purification, Disinfection, the pure air of low-ozone content.
The present invention provides a kind of electrostatic precipitator, sets gradually positive and negative high direct voltage along inlet air direction and ionizes charged mould Block, positive and negative particle move toward one another the secondary powered module of coalescence module, particulate matter and grit collection module;
The positive and negative high direct voltage ionize charged module be used to making by particulate carry electric charge, the positive and negative high direct voltage ionization Charged module includes positive high voltage ionization charging area and negative high voltage ionization charging area, is carried by the particulate of positive high voltage ionization charging area Positive charge, forms charged particulate;Negative electrical charge is carried by the particulate of negative high voltage ionization charging area, forms negative Charge particle;
The positive and negative particle moves toward one another coalescence module and applies the first high voltage electric field, for making the charged particulate, described negative Charge particle moves toward one another under the action of electric field force, and mutually collision attracts cohesion, forms dust particles;
The secondary powered module of the particulate matter applies the second high voltage electric field, for make the dust particles re-start it is charged after take It is electrically charged, form powered dust particles;
The grit collection module includes collecting electrode plate, for collecting the powered dust particles.
Optionally, the air to be clean containing dust particles ionizes the wind of charged module by the positive and negative high direct voltage Speed is 0.5-2m/s.
Optionally, the positive and negative high direct voltage ionize charged module set axially in parallel first electrode, second electrode and 3rd electrode, the voltage of the first electrode is+6KV, and the voltage of the second electrode is -6KV, the voltage of the 3rd electrode For 0V, region forms the positive high voltage ionization charging area, the second electrode between the first electrode and the 3rd electrode Region forms the negative high voltage ionization charging area between the 3rd electrode.
Optionally, the positive and negative particle moves toward one another coalescence module and sets the 4th parallel-plate electricity for including cathode and anode Pole, the cathode are arranged on positive high voltage ionization one side position of charging area, and the anode is arranged on the negative high voltage ionization lotus Electric one side position of area, the voltage between the cathode and the anode are 20KV.
Optionally, the secondary powered module of the particulate matter sets axially in parallel the 5th electrode and the 6th electrode, and described the The voltage of five electrodes is+6KV, and the voltage of the 6th electrode is 0V, is formed between the 5th electrode and the 6th electrode The second high voltage electric field region.
Optionally, the first electrode and the second electrode, including more first ionizing wires;The 3rd electrode bag Include multiple first ionized metal cylinders;Every first ionizing wire is arranged alternately with each first ionized metal cylinder;
5th electrode includes more second ionizing wires;6th electrode includes multiple second ionized metal cylinders;Every Second ionizing wire is arranged alternately with each second ionized metal cylinder.
Optionally, each first ionizing wire is with each the distance between described first ionized metal cylinder 12mm, each second ionizing wire are 12mm with each the distance between described second ionized metal cylinder.
Optionally, the collecting electrode plate sets multigroup positive and negative parallel-plate electrode being alternately arranged, every group of positive/negative plate High tension voltage between positive plate and negative plate is 6KV, the spacing between the positive plate and negative plate of positive/negative plate described in every group For 6mm.
Optionally, the positive and negative high direct voltage ionizes charged module, the secondary powered module of the particulate matter and the grit Electric current caused by collection module ionization is 0.1-10mA.
Optionally, ozone Formaldehyde decomposition module, the ozone formaldehyde point are additionally provided with after the grit collection module Solve module and catalytic decomposition of ozone net is set, for being catalyzed reduction ozone and formaldehyde.
Compared with the prior art, the present invention provides a kind of electrostatic precipitator, set gradually along inlet air direction positive and negative straight The charged module of stream high pressure ionization, positive and negative particle move toward one another the secondary powered module of coalescence module, particulate matter and grit collection module.
Generally, electrostatic precipitator includes air-supply or exhausting module, such as wind turbine, for the air containing dust particle to be sent Enter in device, air-flow ionizes charged module by positive and negative high direct voltage successively, positive and negative particle moves toward one another coalescence module, particulate matter Secondary powered module and grit collection module.
The course of work of the electrostatic precipitator is:
Air containing dust particle enters positive and negative high direct voltage and ionizes charged module, by the particulate of positive high voltage ionization charging area Positive charge is carried, forms charged particulate;Negative electrical charge is carried by the particulate of negative high voltage ionization charging area, it is micro- to form load electricity Grain.
Above-mentioned charged particulate and negative Charge particle continue to move along under the drive of wind turbine with air-flow, into positive and negative grain Son moves toward one another coalescence module, and positive and negative particle moves toward one another coalescence module and applies the first high voltage electric field, makes to pass through just with air-flow Charge particle, the negative Charge particle move toward one another under the action of electric field force, since two kinds of electrically charged particles carry the charges of different polarity, Mutually collision attracts cohesion to be easier to be captured for the larger dust particles of particle diameter, the larger dust particles of particle diameter.
But since two kinds of different in nature electrically charged particles are after attracting to agglomerate, its charged characteristic is changed into electroneutral, in the electric field no longer Stress, thus it is directly more difficult using electric field trapping;Therefore particulate matter is set after positive and negative particle moves toward one another coalescence module Secondary powered module, dust particles continue to the secondary powered block motion of particulate matter, since the secondary powered module of particulate matter applies Second high voltage electric field, the dust particles in electroneutral re-started after the secondary powered module of particulate matter it is charged after carry Electric charge, forms the larger powered dust particles of particle diameter and is moved to grit collection module.
Powered dust particles enter grit collection module, are deposited in collecting electrode plate, so that dust is separated with air, Achieve the purpose that dedusting.
The present invention is first agglomerated little particle dust for large dust particle by the condensation techniques of dust particles, then to big Grain dust is caught, so as to greatly improve efficiency of dust collection.For the particulate matter of 0.1um ranks, realize that more than 99% collection is imitated Rate.
Preferably, the secondary powered module of the particulate matter sets axially in parallel the 5th electrode and the 6th electrode, and described the The voltage of five electrodes is+6KV, and the voltage of the 6th electrode is 0V, is formed between the 5th electrode and the 6th electrode The second high voltage electric field region.Second high voltage electric field is positive high voltage electric field, produces positive high voltage ionized region, and positive ionization produces smelly Oxygen amount is low, good to environment, can reduce the ozone amount produced during electrostatic precipitation, reduces secondary ozone pollution.
Brief description of the drawings
Attached drawing is for providing a further understanding of the present invention, and a part for constitution instruction, with following tool Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.
Fig. 1 is a kind of schematic diagram of embodiment of electrostatic precipitator provided by the invention;
Fig. 2 is the schematic diagram of the third embodiment of electrostatic precipitator provided by the invention.
Wherein, the correspondence between the reference numeral in Fig. 1 and component names is as follows:
10 positive and negative high direct voltages ionize charged module,
20 positive and negative particles move toward one another coalescence module,
The secondary powered module of 30 particulate matters,
40 grit collection modules,
1 first electrode,
2 second electrodes,
3 the 3rd electrodes,
4 the 4th parallel-plate electrodes,
41 cathodes,
42 anode,
5 the 5th electrodes,
6 the 6th electrodes,
7 parallel-plate electrodes,
8 catalytic decomposition of ozone nets.
Embodiment
In order to make those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description The present invention is described in further detail.
Attached drawing 1 and attached drawing 2 are refer to, Fig. 1 is a kind of embodiment of electrostatic precipitator provided by the invention Schematic diagram;
Fig. 2 is the schematic diagram of the third embodiment of electrostatic precipitator provided by the invention.
Technical scheme provides a kind of electrostatic and removes device, for removing the fine particle in air, including The fine particles such as PM2.5 particles.
A kind of specific embodiment is, setting gradually positive and negative high direct voltage along inlet air direction ionizes charged module 10, just Negative particle moves toward one another the secondary powered module 30 of coalescence module 20, particulate matter and grit collection module 40;
Positive and negative high direct voltage ionize charged module 10 be used to making by particulate carry electric charge, positive and negative high direct voltage ionizes charged mould Block 10 includes positive high voltage ionization charging area and negative high voltage ionization charging area, and positive electricity is carried by the particulate of positive high voltage ionization charging area Lotus, forms charged particulate;Negative electrical charge is carried by the particulate of negative high voltage ionization charging area, forms negative Charge particle;
Positive and negative particle moves toward one another coalescence module 20 and applies the first high voltage electric field, for making charged particulate, negative Charge particle exist Moved toward one another under the action of electric field force, mutually collision attracts cohesion, forms dust particles;
The secondary powered module 30 of particulate matter applies the second high voltage electric field, for making dust particles re-start charged rear carrying electricity Lotus, forms powered dust particles;
Grit collection module 40 includes collecting electrode plate, for collecting powered dust particles.
Generally, electrostatic precipitator includes air-supply or exhausting module, such as wind turbine, for be clean to be contained fine-grained sky Gas is introduced into electrostatic precipitator, and the practical work process of the electrostatic precipitator is:
Wind turbine will ionize charged module 10, just by positive and negative high direct voltage successively in the air feeder containing dust particle Negative particle moves toward one another the secondary powered module 30 of coalescence module 20, particulate matter and grit collection module 40.
Air containing dust particle enters positive and negative high direct voltage and ionizes charged module 10, and charging area is ionized by positive high voltage Particulate carry positive charge, formed charged particulate;Negative electrical charge is carried by the particulate of negative high voltage ionization charging area, forms load Electric particulate.
Above-mentioned charged particulate and negative Charge particle continue to move along under the drive of wind turbine with air-flow, into positive and negative grain Son moves toward one another coalescence module 20, and positive and negative particle moves toward one another coalescence module 20 and applies the first high voltage electric field, makes to pass through with air-flow Charged particulate, negative Charge particle moved toward one another under the action of electric field force, since two kinds of electrically charged particles carry the charges of different polarity, Mutually collision attracts cohesion to be easier to be captured for the larger dust particles of particle diameter, the larger dust particles of particle diameter.
But since two kinds of different in nature electrically charged particles are after attracting to agglomerate, its charged characteristic is changed into electroneutral, in the electric field no longer Stress, thus it is directly more difficult using electric field trapping;Therefore particle is set after positive and negative particle moves toward one another coalescence module 20 The secondary powered module 30 of thing, dust particles continue to move to the secondary powered module 30 of particulate matter, due to the secondary powered mould of particulate matter Block 30 applies the second high voltage electric field, is re-started in the dust particles of electroneutral after the secondary powered module 30 of particulate matter charged After carry electric charge, form the larger powered dust particles of particle diameter and moved to grit collection module 40.
Powered dust particles enter grit collection module 40, are deposited in collecting electrode plate, so that dust and air be divided From achieving the purpose that dedusting.
The present invention is first agglomerated little particle dust for large dust particle by the condensation techniques of dust particles, then to big Grain dust is caught, so as to greatly improve efficiency of dust collection.For the particulate matter of 0.1um ranks, realize that more than 99% collection is imitated Rate.
In another embodiment, the air to be clean containing dust particles ionizes charged by positive and negative high direct voltage The wind speed of module 10 is 0.5-2m/s.
Each module purification channel of electrostatic precipitator is connected as electrostatic precipitation passage, and to be clean contains dust particles Air needed under the drive of wind turbine successively by ionizing charged module 10 from positive and negative high direct voltage, positive and negative particle moves toward one another The secondary powered module 30 of coalescence module 20, particulate matter and grit collection module 40, could complete complete purification process.Therefore, If wind speed is less than 0.5 m/s, the air to be clean containing dust particles is since each component is in itself in windage and purification channel Resistance, can not may be deposited on positive and negative particle and move toward one another two sub-band of coalescence module 20 or particulate matter completely by purification channel Electric module 30 or be deposited in dust collection module the secondary powered module 30 of close particulate matter front end, and can not complete final Purifying and dedusting process.The operation of device long-time incomplete purification, not only purification efficiency is low, while can also cause dust particle heap Product is, it is necessary to frequently replace collecting electrode plate or the component of other modules.
On the other hand, if wind speed is higher than 2 m/s, the air to be clean containing dust particles is promoted in the suction of wind turbine to be made Under, move quickly through positive and negative high direct voltage and ionize charged module 10, be likely to result in some particles and complete charged, some particles are not Complete charged.Charge particle and the mixing of non-Charge particle rapidly enter positive and negative particle and move toward one another coalescence module 20, Charge particle Attract each other and move toward one another, but due to the presence and floating of non-Charge particle, hinder the original movement locus of Charge particle, It is quickly secondary to particulate matter to mix non-Charge particle continuation since the stop of non-Charge particle does not complete coalescence for partial state of charge particulate Powered module 30 is moved.Non- electrically charged particle and completed coalescence bulky grain it is charged in the module, due to original charged micro- Grain is powered, bears Charge particle to positive polar motion, disturbs the second high voltage electric field.Therefore secondary charged process is also disturbed, caused Bulky grain chargeability reduces, so as to influence follow-up dust flow, also reduces collection efficiency.
Therefore the air preferably to be clean containing dust particles ionizes the wind of charged module 10 by positive and negative high direct voltage Speed is 0.5-2m/s, to ensure that air-flow can pass through aforementioned four cleaning module, completes charged, coalescence, secondary charged, most Dust particles can reach the process that collecting electrode plate is collected afterwards.
Specifically, ionizing charged module 10 in positive and negative high direct voltage sets axially in parallel first electrode 1, second electrode 2 With the 3rd electrode 3, the voltage of first electrode 1 is+6KV, and the voltage of second electrode 2 is -6KV, and the voltage of the 3rd electrode 3 is 0V, Region forms positive high voltage ionization charging area, region between 2 and the 3rd electrode 3 of second electrode between 1 and the 3rd electrode 3 of first electrode Form negative high voltage ionization charging area.
Air to be clean is under the action of wind turbine, into particulate charging area, by 1 and the 3rd electrode 3 of first electrode it Between region particulate positively charged, formed charged particulate;Born by the particulate band in region between 2 and the 3rd electrode 3 of second electrode Electricity, forms negative Charge particle.
Moving toward one another the setting of coalescence module 20 in positive and negative particle includes the 4th parallel-plate electrode 4 of cathode 41 and anode 42, Cathode 41 is arranged on positive high voltage ionization one side position of charging area, and anode 42 is arranged on negative high voltage ionization one side position of charging area, just Voltage between pole 41 and anode 42 is 20KV.
It should be noted that the distance between 42 electrode of cathode 41 and anode being oppositely arranged in parallel does not limit specifically It is fixed, as long as preferably satisfying the following conditions, from positive and negative high direct voltage ionize charged module 10 complete it is charged after Charge particle Electric field between 42 electrode of cathode 41 and anode, can realize that positive and negative charged particle phase attracts to hit coalescence to one to movement Role.
In general, setting electrostatic precipitation passage in electrostatic precipitator, four modules of the above are successively set in passage, to keep away The particulate for exempting to enter in cleaning module does not complete purification and leaks out, and reduces efficiency of dust collection.
Cathode 41 is arranged on positive high voltage ionization one side position of charging area in 4th parallel-plate electrode 4, correspondingly, anode 42 is set Put and ionize one side position of charging area in negative high voltage.In this way, Charge particle from positive and negative high direct voltage ionize charged module 10 out into After entering the module, from charged particulate of the positive high voltage ionization charging area after charged under the action of electric field force, moved to anode 42, From negative Charge particle of the negative high voltage ionization charging area after charged under the action of electric field force, moved to cathode 41, it is positive and negative charged micro- Intergranular thus greatly reduces the collection difficulty of follow-up particle since the different attraction coalescence that collides with each other of electric charge is bulky grain.
In addition, the secondary powered module 30 of particulate matter sets axially in parallel the 5th electrode 5 and the 6th electrode 6, the 5th electrode 5 Voltage be+6KV, the voltage of the 6th electrode 6 is 0V, and the second high-voltage electricity place is formed between the 5th electrode 5 and the 6th electrode 6 Domain.Second high voltage electric field region is positive high voltage electric field region, produces positive high voltage ionized region, the ozone amount that positive ionization produces is low, can drop The ozone amount produced during low electrostatic precipitation, environmental pollution smaller, so as to reduce electrostatic precipitator to the two of environment Secondary ozone pollution.
It should be noted that positive and negative high direct voltage ionizes charged module 10 and the secondary powered module 30 of particulate matter applies high pressure 6KV, the magnitude of voltage that the high voltage power supply of the application of coalescence module 20 is moved toward one another in positive and negative particle is 20KV, on the one hand can guarantee that field strength Intensity, on the other hand will not produce too many ozone again.Go to reduce the effect of secondary ozone release, solution from multiple angles to reach Certainly the problem of ozone secondary pollution.
As preferred embodiment, in the third specific embodiment, first electrode 1 and second electrode 2, are wrapped Include more first ionizing wires;3rd electrode 3 includes multiple first ionized metal cylinders;Every first ionizing wire and each first electricity It is arranged alternately from metal cylinder;
5th electrode 5 includes more second ionizing wires;6th electrode 6 includes multiple second ionized metal cylinders;Every second electricity It is arranged alternately from silk and each second ionized metal cylinder.
First electrode 1 and second electrode 2 are realized using more ionizing wires, it is ensured that can be used the abundance of carrying capacity, be made The ionization energy that air molecule obtains enough Uniformly stables is obtained, particulate matter is efficiently rapid charged.
Similar with above-mentioned technical proposal, the 5th electrode 5 includes more second ionizing wires, and ensure that secondary charged available The abundance of carrying capacity so that air molecule obtains the ionization energy of enough Uniformly stables, and particulate matter is efficiently rapid charged, improves charged Efficiency, so as to improve the collection efficiency of later collection module so that the efficiency of dust collection of overall electrostatic precipitator can be protected Barrier.
Especially, the secondary powered module 30 of particulate matter is added before grit collection module 40 so that original carried charge Low bulky grain thing increases carried charge, considerably increases the collection rate of rear class, for the particulate matter of 0.1um ranks, realizes more than 99% Collection efficiency.
The distance between each first ionizing wire and adjacent each first ionized metal cylinder are preferably 12mm, Mei Ge The distance between two ionizing wires and adjacent each second ionized metal cylinder are preferably 12mm, ensure that the efficiency of ionization, together When will not strike sparks again, not only ensure local electric field strength, but also can guarantee that air draught movement to be clean is unaffected.
In the 4th kind of specific embodiment, collecting electrode plate sets multigroup positive and negative parallel-plate electrode 7 being alternately arranged, High tension voltage between the positive plate and negative plate of every group of positive/negative plate is 6KV, the positive plate and negative plate of every group of positive/negative plate Between spacing be 6mm.Larger dust particles with positive charge, into after grit collection module 40, in the work of electric field force It is adsorbed onto under on negative plate, completes the collection to dust particles.The setting of multigroup positive and negative parallel-plate electrode 7 being alternately arranged, Dust-collecting area is considerably increased, improves dust capacity, while also allows for cleaning and safeguards.The positive plate of every group of positive/negative plate and Spacing between negative plate is 6mm, ensure that the adsorption strength of electric field, while will not strike sparks again.
Positive and negative high direct voltage ionizes charged module 10, the secondary powered module 30 of particulate matter and grit collection module 40 and ionizes institute The electric current of generation is 0.1-10mA.By positive and negative high direct voltage, highfield, secondary live high voltage, using 6KV's and 20KV The operating current of operating voltage and 0.1-10mA, particulate matter for 0.1um ranks, it can be achieved that more than 99% collection efficiency.For Easy to the compliant applications with clarifier, using the operating current of 0.1-10mA, security reliability is improved.
In the 5th kind of specific embodiment, ozone Formaldehyde decomposition mould is additionally provided with after grit collection module 40 Block, ozone Formaldehyde decomposition module set catalytic decomposition of ozone net 8, for being catalyzed reduction ozone and formaldehyde.
There is ozone Formaldehyde decomposition module after grit collection module 40, refer to electrostatic precipitator along inlet air direction, according to It is secondary to set the charged module 10 of positive and negative high direct voltage ionization, positive and negative particle to move toward one another the secondary powered mould of coalescence module 20, particulate matter Block 30, grit collection module 40 and ozone Formaldehyde decomposition module.
Ozone formaldehyde is catalytically decomposed in ozone Formaldehyde decomposition module, and catalysis oxidation removes formaldehyde, and further Reduce the actual yield of ozone.0.1um ranks particle and generation cannot be collected by solving existing electrostatic precipitator technology The problem of ozone amount excessive " secondary pollution ", can simultaneously remove indoor formaldehyde, can both realize in spatial dimension and remove in air The purpose of particulate matter, can also administer the ozone formaldehyde pollutants in air.
The present invention is first agglomerated little particle dust for large dust particle by the condensation techniques of dust particles, then to big Grain dust is caught, so as to greatly improve efficiency of dust collection.
Also, also electrostatic precipitation process is effectively reduced by setting ozone Formaldehyde decomposition module after dust collection module The ozone amount of middle generation, while the pollutants such as formaldehyde can also be catalytically decomposed.The air quality of purification air is further put forward.
Specifically, in ozone Formaldehyde decomposition module, the ozone decomposed net of Mn oxide is installed, accelerates ozone decomposed. MnO2A kind of unstable intermediate gas is first generated with ozone reaction, unstable intermediate gas can voluntarily decompose generation oxygen And MnO2, so reacting required activation energy just reduces, and reaction rate also accelerates, MnO2During centre The effect of catalyst is functioned only as.
Using the ozone decomposed net for being provided with Mn oxide, the actual yield of ozone of the present apparatus substantially reduced, solves The generation ozone secondary pollution in electrostatic precipitation field the problem of.It is and safe, lossless during ozone is actually removed Material.
In addition, structure of the Mn oxide ozone decomposed network optimization choosing used in the present invention using three-dimensional porous type, for first A kind of non-metallic catalyst for aldehyde, can at room temperature at a high speed it is lasting formaldehyde be converted to harmless carbon dioxide and Water.
In electrostatic precipitator in actual work, positive and negative high direct voltage ionizes charged module 10, positive and negative particle moves toward one another The secondary powered module 30 of coalescence module 20, particulate matter and grit collection module 40 and ozone Formaldehyde decomposition module can be regarded as Particulate charged process, positive and negative grain are completed in five areas set in whole electrostatic precipitation passage, positive and negative high direct voltage ionization charging area Son moves toward one another coalescence area and completes particulate coalescence bulky grain process, and the secondary live zone of particulate matter completes to make bulky grain secondary charged Process, finally completes dust collection in grit collecting region, and ozone Formaldehyde decomposition area completes point of the pollutant such as PARA FORMALDEHYDE PRILLS(91,95) and ozone Solution removes.
Specifically, it is charged to drive the air for carrying dust particles to enter the ionization of positive and negative high direct voltage by wind turbine first Area so that dust particles carry positive and negative electric charge respectively.
When the electrically charged particle for carrying positive and negative electric charge respectively moves toward one another coalescence area into positive and negative particle, in high voltage electric field Under the action of, electrically charged particle moves toward one another collision and attracts, and agglomerates for larger particle, beneficial to collection afterwards.
The dust for larger particles is agglomerated by the secondary live zone of particulate matter, it is secondary under the double ionization of positive high voltage power supply It is charged, with more positive charges.
Larger dust particles with positive charge, into after grit collecting region, are adsorbed onto negative under the action of electric field force On pole plate, the collection to dust particles is completed.
A certain amount of ozone can be contained by removing the air of dust particles, and air then passes through ozone decomposed area, leads to herein The reduction of Mn oxide is crossed, accelerates the decomposition of ozone formaldehyde, obtains cleaning, the air of non-secondary pollution.What is produced is smelly Oxygen amount is well below national safety standard.
Compared with existing electrostatic precipitator technology, the technical program employs Mn oxide to the collection rate higher of grit Catalysis technique, ozone yield is lower, while has been also equipped with removing the ability of indoor formaldehyde.
Specific case used herein is set forth the principle of the present invention and embodiment, and above example is said It is bright to be only intended to help the method and its core concept for understanding the present invention.It should be pointed out that the ordinary skill for the art For personnel, without departing from the principle of the present invention, some improvement and modification, these improvement can also be carried out to the present invention Also fallen into modification in the protection domain of the claims in the present invention.

Claims (10)

1. a kind of electrostatic precipitator, it is characterised in that set gradually positive and negative high direct voltage along inlet air direction and ionize charged module (10), positive and negative particle move toward one another coalescence module(20), the secondary powered module of particulate matter(30)With grit collection module(40);
The positive and negative high direct voltage ionizes charged module(10)For make by particulate carry electric charge, the positive negative dc high voltage Ionize charged module(10)Charging area and negative high voltage ionization charging area are ionized including positive high voltage, by positive high voltage ionization charging area Particulate carries positive charge, forms charged particulate;Negative electrical charge is carried by the particulate of negative high voltage ionization charging area, forms load electricity Particulate;
The positive and negative particle moves toward one another coalescence module(20)Apply the first high voltage electric field, for making the charged particulate and institute State negative Charge particle to move toward one another under the action of electric field force, mutually collision attracts cohesion, forms dust particles;
The secondary powered module of particulate matter(30)Apply the second high voltage electric field, it is charged for re-starting the dust particles After carry electric charge, form powered dust particles;
The grit collection module(40)Including collecting electrode plate, for collecting the powered dust particles.
2. electrostatic precipitator as claimed in claim 1, it is characterised in that the air to be clean containing dust particles passes through institute State positive and negative high direct voltage and ionize charged module(10)Wind speed be 0.5-2m/s.
3. electrostatic precipitator as claimed in claim 1, it is characterised in that the positive and negative high direct voltage ionizes charged module(10) Axially in parallel first electrode is set(1), second electrode(2)With the 3rd electrode(3), the first electrode(1)Voltage for+ 6KV, the second electrode(2)Voltage be -6KV, the 3rd electrode(3)Voltage be 0V, the first electrode(1)With institute State the 3rd electrode(3)Between region form positive high voltage ionization charging area, the second electrode(2)With the 3rd electrode (3)Between region form negative high voltage ionization charging area.
4. electrostatic precipitator as claimed in claim 3, it is characterised in that the positive and negative particle moves toward one another coalescence module(20) Setting includes cathode(41)And anode(42)The 4th parallel-plate electrode(4), the cathode(41)It is arranged on the positive high voltage electricity From one side position of charging area, the anode(42)It is arranged on negative high voltage ionization one side position of charging area, the cathode(41) With the anode(42)Between voltage be 20KV.
5. electrostatic precipitator as claimed in claim 4, it is characterised in that the secondary powered module of particulate matter(30)Axis is set To the 5th parallel electrode(5)With the 6th electrode(6), the 5th electrode(5)Voltage be+6KV, the 6th electrode(6) Voltage be 0V, the 5th electrode(5)With the 6th electrode(6)Between form the second high voltage electric field region.
6. electrostatic precipitator as claimed in claim 5, it is characterised in that
The first electrode(1)With the second electrode(2), including more first ionizing wires;3rd electrode(3)Including Multiple first ionized metal cylinders;Every first ionizing wire is arranged alternately with each first ionized metal cylinder;
5th electrode(5)Including more second ionizing wires;6th electrode(6)Justify including multiple second ionized metals Column;Every second ionizing wire is arranged alternately with each second ionized metal cylinder.
7. electrostatic precipitator as claimed in claim 6, it is characterised in that each first ionizing wire and each described first The distance between ionized metal cylinder is 12mm, each second ionizing wire and each second ionized metal cylinder it Between distance be 12mm.
8. electrostatic precipitator as claimed in claim 7, it is characterised in that the collecting electrode plate includes multigroup positive and negative alternately row The parallel-plate electrode of row(7), the high tension voltage between the positive plate and negative plate of every group of positive/negative plate is 6KV, described in every group just Spacing between the positive plate and negative plate of negative plate is 6mm.
9. electrostatic precipitator as claimed in claim 8, it is characterised in that the positive and negative high direct voltage ionizes charged module (10), the secondary powered module of particulate matter(30)With the grit collection module(40)Electric current caused by ionization is 0.1- 10mA。
10. the electrostatic precipitator as described in claim 1-9 is any, it is characterised in that after the grit collection module also Ozone Formaldehyde decomposition module is provided with, the ozone Formaldehyde decomposition module sets catalytic decomposition of ozone net(8), reduced for being catalyzed Ozone and formaldehyde.
CN201711180712.6A 2017-11-23 2017-11-23 A kind of electrostatic precipitator Pending CN107930851A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108815998A (en) * 2018-05-31 2018-11-16 武汉大学 A kind of electronegative gas electromigration membrane separating method
CN109513528A (en) * 2018-11-30 2019-03-26 远大洁净空气科技有限公司 A kind of electrostatic precipitator
CN109604062A (en) * 2018-12-24 2019-04-12 宁波乐阳环保科技有限公司 Electrostatic precipitation reactor design method and indoor cleaner
WO2020083127A1 (en) * 2018-10-22 2020-04-30 上海必修福企业管理有限公司 Dust removal system and method for engine intake air
CN111139565A (en) * 2020-03-07 2020-05-12 张娇娇 Cotton-wool blended yarn fabric and preparation method thereof
WO2020216361A1 (en) * 2019-04-25 2020-10-29 上海必修福企业管理有限公司 Vocs gas treatment system and method in engine exhaust gas
CN112657679A (en) * 2020-12-14 2021-04-16 上海士诺净化科技有限公司 Electrostatic dust collection module group

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1190757A1 (en) * 2000-09-26 2002-03-27 LTA Lufttechnik GmbH Electro-filter system
CN201154327Y (en) * 2007-12-29 2008-11-26 武汉科技大学 Three-zone dipolar loading electrostatic agglomeration dust remover
CN201329312Y (en) * 2008-12-23 2009-10-21 兰州电力修造厂 Coagulation type high-voltage electrostatic precipitator
CN202725322U (en) * 2012-07-10 2013-02-13 杭州天明环保工程有限公司 Graded-charging static dust coagulation device
CN203737394U (en) * 2014-01-22 2014-07-30 浙江信雅达环保工程有限公司 Dust-charge coagulator
CN104566650A (en) * 2014-12-29 2015-04-29 上海安平静电科技有限公司 Air purification unit applicable to remove fine particles in the air in the home environment
CN204353005U (en) * 2014-12-02 2015-05-27 中国重型机械研究院股份公司 A kind of fine particle coagulation structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1190757A1 (en) * 2000-09-26 2002-03-27 LTA Lufttechnik GmbH Electro-filter system
CN201154327Y (en) * 2007-12-29 2008-11-26 武汉科技大学 Three-zone dipolar loading electrostatic agglomeration dust remover
CN201329312Y (en) * 2008-12-23 2009-10-21 兰州电力修造厂 Coagulation type high-voltage electrostatic precipitator
CN202725322U (en) * 2012-07-10 2013-02-13 杭州天明环保工程有限公司 Graded-charging static dust coagulation device
CN203737394U (en) * 2014-01-22 2014-07-30 浙江信雅达环保工程有限公司 Dust-charge coagulator
CN204353005U (en) * 2014-12-02 2015-05-27 中国重型机械研究院股份公司 A kind of fine particle coagulation structure
CN104566650A (en) * 2014-12-29 2015-04-29 上海安平静电科技有限公司 Air purification unit applicable to remove fine particles in the air in the home environment

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KANAZAWA, S., OHKUBO, T., NOMOTO, Y, ET AL: "Submicron particle agglomeration and precipitation by using a bipolar charging method", 《JOURNAL OF ELECTROSTATICS》 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108815998A (en) * 2018-05-31 2018-11-16 武汉大学 A kind of electronegative gas electromigration membrane separating method
WO2020083127A1 (en) * 2018-10-22 2020-04-30 上海必修福企业管理有限公司 Dust removal system and method for engine intake air
CN109513528A (en) * 2018-11-30 2019-03-26 远大洁净空气科技有限公司 A kind of electrostatic precipitator
CN109604062A (en) * 2018-12-24 2019-04-12 宁波乐阳环保科技有限公司 Electrostatic precipitation reactor design method and indoor cleaner
WO2020216361A1 (en) * 2019-04-25 2020-10-29 上海必修福企业管理有限公司 Vocs gas treatment system and method in engine exhaust gas
CN111139565A (en) * 2020-03-07 2020-05-12 张娇娇 Cotton-wool blended yarn fabric and preparation method thereof
CN112657679A (en) * 2020-12-14 2021-04-16 上海士诺净化科技有限公司 Electrostatic dust collection module group

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