CN110237931A - A kind of magnetic electric compound gas purifier and its control method - Google Patents
A kind of magnetic electric compound gas purifier and its control method Download PDFInfo
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- CN110237931A CN110237931A CN201910525406.4A CN201910525406A CN110237931A CN 110237931 A CN110237931 A CN 110237931A CN 201910525406 A CN201910525406 A CN 201910525406A CN 110237931 A CN110237931 A CN 110237931A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION 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
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
- B03C3/0175—Amassing particles by electric fields, e.g. agglomeration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION 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
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/36—Controlling flow of gases or vapour
- B03C3/361—Controlling flow of gases or vapour by static mechanical means, e.g. deflector
- B03C3/363—Controlling flow of gases or vapour by static mechanical means, e.g. deflector located before the filter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION 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
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/66—Applications of electricity supply techniques
- B03C3/68—Control systems therefor
Abstract
A kind of magnetic electric compound gas purifier and its control method, which has shell, including inlet channel, particle deflecting region, particulate collection zone and the outlet passageway being arranged successively along airflow direction；Homogenizing plate is provided in the inlet channel, for being laminar flow by the gas flow homogenization entered, the channel at the inlet channel rear portion is horn-type opening, it is connect with the shell of the particle deflecting region, the inlet channel rear portion is the particle deflecting region, and the particle deflecting region has deflecting electric field and/or magnetic deflection field；Also there is particulate matter to deflect collection mode, common collection mode and particle concentration feedback regulation mode, whether the clarifier and its method can detecte judges aerosol particle itself with charge, and the general proportions with positive and negative and neutral charge particle, and suitable collection mode is selected, achieve the effect that improving efficiency of dust collection reduction uses power consumption and clarifier volume.
Description
Technical field
The present invention relates to a kind of gas purge systems, more particularly, to a kind of magnetic electric compound gas purifier and its control
Method belongs to electrostatic precipitation field.
Background technique
Electrostatic precipitation clarifier was common a kind of air cleaning system in industry and life, early in scientist shellfish in 1772
Cali Asia in a large amount of aerosol gases electric discharge and electric wind phenomenon carried out successful experiment, verified in Cotterell in 1906
The process means of this processing to the purification filtering effect of dusty gas and are applied to industry by electrostatic force, at first in 1907 quiet
Electric precipitator, which is built, to be completed, and is succeeded in industry spot processing flue dust, has been widely applied to electrostatic precipitator technology today
In nearly all industrial circle, the principle of electrostatic precipitation is to ionize the gas molecule in air using high-voltage dc, is produced
Raw a large amount of electronics and ion, it is mobile to the two poles of the earth under the action of electric field force, the dust particles in air-flow are encountered in moving process
Keep its charged with bacterium, electrically charged particle is taken exercises under electric field force effect to the opposite pole plate of own charge, under electric field action,
Achieve the effect that collect dust particles in air-flow.Electromagnetic type electrostatic precipitator technology is nowadays before electrostatic precipitation field of purification one
The research direction on edge, principle are to introduce magnetic field in accumulation area it is stagnant in accumulation area to extend particle due to the effect of Lorentz force
The time stayed, particle is enable more fully to be adsorbed by collecting plate, improves the working efficiency of electrostatic precipitator.
The basic theory of electrostatic precipitation first is that aerosol is theoretical, i.e., dispersed by solid or liquid fine particle and be suspended in gas
The colloidal dispersion system formed in body medium, also known as gas diffuser system.Its dispersed phase is solid or liquid fine particle, size
It is 0.001~100 μm, decentralized medium is gas.Contaminant particle is integrally defaulted as neutrals by traditional electrostatic precipitation theory
Matter calculates dust removing effects and setting dependency structure and voltage parameter to facilitate, but substantially molten in the gas of contaminant particle composition
Not all particle is all in neutrality in glue, or even whole aerosol is not also in electroneutral, wherein there is largely bands
There are a contaminant particle of positive charge or negative electrical charge, such as Wu Chao, the in written " microparticle the sticks and removes " book of Li Ming
2.3.4 it is just described in section, actually nearly all natural dust or industrial dust all have charge, can also from table 2-6
Have many positive and negative charges for all having different proportion in the dust particles of its detection out, influence aerosol particle itself electrification because
Element is more, and the size of contaminant particle, material, the factors such as mutual frictional impact, temperature and humidity have relationship.Traditional electrostatic
Dust-extraction unit is not concerned about the problem of aerosol particle is per se with charge excessively, but it is carried out as neutrophil granule
It is collected after charged, this dedusting method that identification is not added often is reduced when encountering some aerosols per se with charge
Efficiency of dust collection or the power consumption for increasing electrostatic precipitator.
Summary of the invention
Aiming at the problem that being mentioned in background technique, the present invention be propose one kind can determine whether aerosol particle itself whether band
There is charge and carry out the magnetic electric compound gas purifier of respective partition collection, which has shell, including along air-flow side
To inlet channel, particle deflecting region, particulate collection zone and the outlet passageway being arranged successively；It is provided in the inlet channel and flows
Plate, for being laminar flow by the gas flow homogenization entered, the channel at the inlet channel rear portion is horn-type opening, inclined with the particle
Turn the shell connection in area, the inlet channel rear portion is the particle deflecting region, corresponds to the particle on the shell and deflects
Calutron is provided on the position in area, calutron generates magnetic deflection field, the magnetic deflection field in the particle deflecting region
Magnetic induction line direction and airflow direction it is vertical divide so that positively charged particle in the gas flow and electronegative particle mutually deflects
From.
Further, the rear portion of the particle deflecting region is the particulate collection zone, and the particulate collection zone is by vertical
It is formed in airflow direction positive particles collecting region arranged in parallel, neutrophil granule collecting region and negative electricity particulate collection zone；It is described inclined
Turning magnetic field makes particle deflection positively charged in air-flow enter the positive particles collecting region, so that electronegative particle in air-flow
Deflection enters the negative electricity particulate collection zone, neutrophil granule enters the neutrophil granule collecting region；Between three collecting regions mutually
Isolation.
Further, the front of the particulate collection zone is provided with front granule density sensor group；The powder collection
The rear portion in area is provided with rear portion granule density sensor group；The positive particles collecting region, the neutrophil granule collecting region and institute
The preceding back-mouth for stating negative electricity particulate collection zone is correspondingly arranged on the front granule density sensor group and the rear portion particle
Granule density sensor in concentration sensor group.
Further, the rear portion of the inlet channel is provided with a pair of of rotation deflector, and the rotation deflector can be used
Electric hinge realizes rotation, has laminar flow guidance and spreads both of which, in laminar flow bootmode, two rotation water conservancy diversion
Plate is parallel to airflow direction, and two rotation deflectors are close to the inner walls of respective installation site when dispersal pattern；It is described
The rear portion of inlet channel is additionally provided with host grain concentration sensor；The positive particles collecting region, the neutrophil granule collecting region
Be provided with electric discharge group with the front of the negative electricity particulate collection zone, rear portion is provided with collection group, each electric discharge group by
Multiple row corona wire composition；Each collection group collects board group by the side collecting board and baffling for being located at respective collecting region side wall
At；Each electric discharge group and each collection group are separately connected the high-voltage electricity of opposed polarity；The baffling collecting board is in gas
In " people " the word composition for rotating clockwise 90 ° of " eight " word and being rotated by 90 ° counterclockwise on stream direction.
It further, further include controller, controllable high-voltage power supply and power supply relay group, the controller is electrically connected and controls
The controllable high-voltage power supply and the power supply relay group are made, the controller controls the rotation deflector.The controller
Connect the host grain concentration sensor, the front granule density sensor group and the rear portion granule density sensor group；
The concentration sensor used is the particle concentration sensor of infrared ray, laser either CCD type.
Another magnetic electric compound gas purifier, the clarifier have shell, it is characterised in that: including along airflow direction
Inlet channel, particle deflecting region, particulate collection zone and the outlet passageway successively passed through；It is provided in the inlet channel and flows
Plate, for being laminar flow by the gas flow homogenization entered, the channel at the inlet channel rear portion is horn-type opening, inclined with the particle
Turn the shell connection in area, the inlet channel rear portion is the particle deflecting region, corresponds to the particle on the shell and deflects
Calutron is provided on the position in area, calutron generates magnetic deflection field, the magnetic deflection field in the particle deflecting region
Magnetic induction line direction and airflow direction it is vertical；The particle deflecting region is parallel on the inner wall of shell described in the two sides of airflow direction
It is arranged in parallel with deflection negative electrode and deflection positive electrode.
Further, the rear portion of the particle deflecting region is the particulate collection zone, and the particulate collection zone is by vertical
It is formed in airflow direction positive particles collecting region arranged in parallel, neutrophil granule collecting region and negative electricity particulate collection zone；It is described just
Electric particulate collection zone and deflection negative electrode are located at the same side of shell, the negative electricity particulate collection zone and the deflection positive electrode position
In the other side of shell, the neutrophil granule collecting region be located at the positive particles collecting region and the negative electricity particulate collection zone it
Between and face described in inlet channel, it is mutually isolated between three collecting regions；The magnetic deflection field and deflection negative electrode and it is described partially
The electric field collective effect that electrode of becoming a full member generates, so that particle deflection positively charged in air-flow enters the positive particles collecting region,
So that electronegative particle deflection enters the negative electricity particulate collection zone in air-flow, neutrophil granule is collected into the neutrophil granule
Area.
Further, the rear portion of the inlet channel is provided with a pair of of rotation deflector, and the rotation deflector can be used
Electric hinge realizes rotation, has laminar flow guidance and spreads both of which, in laminar flow bootmode, two rotation water conservancy diversion
Plate is parallel to airflow direction, and two rotation deflectors are close to the inner walls of respective installation site when dispersal pattern；It is described
The rear portion of inlet channel is additionally provided with host grain concentration sensor；The positive particles collecting region, the neutrophil granule collecting region
Be provided with electric discharge group with the front of the negative electricity particulate collection zone, rear portion is provided with collection group, each electric discharge group by
Multiple row corona wire composition；Each collection group collects board group by the side collecting board and baffling for being located at respective collecting region side wall
At；Each electric discharge group and each collection group are separately connected the high-voltage electricity of opposed polarity；The baffling collecting board is in gas
In " people " the word composition for rotating clockwise 90 ° of " eight " word and being rotated by 90 ° counterclockwise on stream direction.
A kind of control method for above-mentioned magnetic electric compound gas purifier, it is characterised in that: including step 1, enter
Particulate matter deflects collection mode, detects the particle in air-flow with the presence or absence of a large amount of with positive electricity and/or negative electricity；Step 2, if deposited
Then enter polarity collection mode in the particle largely with positive electricity and/or negative electricity, is received if it does not exist, then entering common electric discharge
Integrated mode；The method that two kinds of collection modes are all made of concentration sensor feedback regulation determines the number of discharge voltage and/or corona wire
Amount.
Further, the concentration feedback adjusting method are as follows: the rear portion granule density sensor positioned at particulate collection zone rear portion
Group detection goes out the particle concentration in air-flow by electrostatic precipitation heel row, the concentration that granule density sensor group detects when rear portion
When greater than preset value, control increase in electric discharge group the energization quantity of corona wire and or control increase between electric discharge group and collection group
Voltage；When the concentration that granule density sensor group detects when rear portion is less than preset value, control reduces corona wire in electric discharge group
Energization quantity and or control reduce the voltage between electric discharge group and collection group.
It has the advantage that:
1, technology prejudice in the prior art is overcome, for the pollutant aerosol for having charge, can detecte judgement
Whether aerosol particle itself has charge, and the general proportions with positive and negative and neutral charge particle, and selects properly
Collection mode.
2, for per se with the aerosol particle of a large amount of positive and negative charges may be implemented subregion and targetedly it is charged and
It collects, the charged efficiency of aerosol particle is improved, so that improving efficiency of dust collection reduces the power consumption of electrostatic precipitator.
3, using sensor intelligent dynamic feedback control mode, electric discharge quantity and discharge voltage to discharge electrode are realized
Accurate feedback control, the power consumption of electrostatic precipitator is effectively controlled while guaranteeing gas purification efficiency, improves energy
The utilization rate in source.
4, new structural baffling collecting board is used, so that vortex is more readily formed in charged particle wherein, more sufficiently
It is contacted with collecting board, improves the collection efficiency of particulate matter.
5, magnetoelectricity combined deflection structure is used, deflection effect is enhanced, reduces the volume of electrostatic precipitator.
Detailed description of the invention
Fig. 1 is intelligent gas purification system control principle drawing；
Fig. 2 is a kind of intelligent gas purification system agent structure schematic diagram；
Fig. 3 is intelligent gas purification system control logic figure；
Fig. 4 is that intelligent gas purification system B area's concentration feedback adjusts logic chart；
Fig. 5 is the area intelligent gas purification system A course of work schematic diagram；
Fig. 6 is another intelligent gas purification system agent structure schematic diagram；
Fig. 7 is the third intelligent gas purification system agent structure schematic diagram；
Description of symbols:
A, particle deflecting region；A-1, deflection negative electrode；A-2, deflection positive electrode；A-3, magnetic deflection field；B, particulate collection zone；
B-1, positive particles collecting region；B-2, neutrophil granule collecting region；B-3, negative electricity particulate collection zone；B-1-1, one group of electric discharge；B-2-
1, it discharges two groups；B-3-1, three groups of electric discharge；B-1-2, one group is collected；B-2-2, two groups are collected；B-3-2, three groups are collected；
1, shell；1-1, inlet channel；1-2, outlet passageway；2, homogenizing plate；3, deflector is rotated；4, host grain concentration passes
Sensor；5, front granule density sensor group；5-1, positive particles concentration sensor；5-2, neutrophil granule concentration sensor；5-
3, negative electricity granule density sensor；6, rear portion granule density sensor group；6-1, rear portion granule density sensor one；6-2, rear portion
Granule density sensor two；6-3, rear portion granule density sensor three；7, controllable high-voltage power supply；8, power supply relay group；9, electric
Hachure；10, baffling collecting board；11, side collecting board；12, controller.
Specific embodiment
Embodiment one
A kind of intelligent gas purification system as shown in attached drawing 1,2, including an electrostatic precipitator, the device have one
A shell 1, the device include inlet channel 1-1, particle deflecting region A, particulate collection zone B and outlet passageway 1-2；Air-flow successively passes through
Cross inlet channel 1-1, particle deflecting region A, particulate collection zone B and outlet passageway 1-2；Homogenizing plate is provided in inlet channel 1-1
2, for being laminar flow by the gas flow homogenization entered, the channel at the rear portion inlet channel 1-1 is horn-type opening, with particle deflecting region A
Shell connection；The rear portion inlet channel 1-1 is provided with a pair of of rotation deflector 3, and electric hinge realization can be used in rotation deflector 3
Rotation has laminar flow guidance and spreads both of which, and when laminar flow bootmode, two rotation deflectors 3 are parallel to airflow direction,
Two rotation deflectors 3 are close to the inner walls of respective installation site when dispersal pattern；The rear portion of inlet channel 1-1 is additionally provided with
Host grain concentration sensor 4 can be infrared ray, laser either CCD for detecting the particle concentration entered in gas
The particle concentration sensor of type.
The rear portion inlet channel 1-1 is particle deflecting region A, and particle deflecting region A is parallel to two side bodies, 1 inner wall of airflow direction
On be arranged in parallel with deflection negative electrode A-1 and deflection positive electrode A-2, negative electrode A-1 is for attracting and deflect in air-flow for deflection
Positively charged particle, deflection positive electrode A-2 attract and deflect electronegative particle in air-flow.
The rear portion of particle deflecting region A is particulate collection zone B, and particulate collection zone B is by arranged in parallel perpendicular to airflow direction
Positive particles collecting region B-1, neutrophil granule collecting region B-2 and negative electricity particulate collection zone B-3 composition；Positive particles collecting region B-
1 is located at the same side of shell with deflection negative electrode A-1, and negative electricity particulate collection zone B-3 is located at the another of shell with deflection positive electrode A-2
Side, neutrophil granule collecting region B-2 is located between positive particles collecting region B-1 and negative electricity particulate collection zone B-3 and face air inlet
Channel 1-1, it is mutually isolated between three collecting regions.
The front of particulate collection zone B is provided with front granule density sensor group 5, comprising: positive particles concentration sensor
5-1, neutrophil granule concentration sensor 5-2 and negative electricity granule density sensor 5-3；The rear portion of particulate collection zone B is provided with rear portion
Granule density sensor group 6, comprising: one 6-1 of rear portion granule density sensor, two 6-2 of rear portion granule density sensor and rear portion
Three 6-3 of granule density sensor.Positive particles concentration sensor is correspondingly arranged at the air flow inlet of positive particles collecting region B-1
5-1, the air flow outlet of positive particles collecting region B-1 are correspondingly arranged on one 6-1 of rear portion granule density sensor；Neutrophil granule is received
Collect and be correspondingly arranged on neutrophil granule concentration sensor 5-2 at the air flow inlet of area B-2, the air-flow of neutrophil granule collecting region B-2 goes out
Two 6-2 of rear portion granule density sensor is correspondingly arranged at mouthful；It is correspondingly arranged at the air flow inlet of negative electricity particulate collection zone B-3
Negative electricity granule density sensor 5-3, the air flow outlet of negative electricity particulate collection zone B-3 are correspondingly arranged on rear portion granule density sensing
Three 6-3 of device.
The front (i.e. at air flow inlet) of positive particles collecting region B-1 is provided with one group of B-1-1 of electric discharge, discharges one group
It is provided with after B-1-1 and collects one group of B-1-2；The front of neutrophil granule collecting region B-2 is provided with two groups of B-2-1 of electric discharge, electric discharge two
It is provided with after group B-2-1 and collects two groups of B-2-2；The front of negative electricity particulate collection zone B-3 is provided with three groups of B-3-1 of electric discharge, electric discharge
It is provided with after three groups of B-3-1 and collects three groups of B-3-2；Each electric discharge group is made of multiple row corona wire 9；Each collection group is by position
It is formed in the side collecting board 11 and baffling collecting board 10 of respective collecting region side wall；Each electric discharge group and each collection group are separately connected
The high-voltage electricity of opposed polarity；Baffling collecting board 10 is in the direction of the air flow in " eight " word for rotating clockwise 90 ° and rotation counterclockwise
" people " the word composition for turning 90 °, so that charged particle forms vortex wherein, more sufficiently contacts with collecting board, collects effect to improve
Rate；Voltage value between electric discharge group and collection group is 3kV-15kV.
Intelligent gas purification system further includes controller 12, controllable high-voltage power supply 7 and power supply relay group 8, controller 12
The signal for acquiring host grain concentration sensor 4, front granule density sensor group 5 and rear portion granule density sensor group 6, goes forward side by side
The corresponding processing of row and control；Controller 12 controls rotation deflector 3 in dispersal pattern and laminar flow pattern according to sensor signal
Between switch；Controllable high-voltage power supply 7 is received by power supply relay group 8 to deflection negative electrode A-1, deflection positive electrode A-2 and particle
Collect each electric discharge group of area B and the electrode power supply in collection group；Controller 12 is cut by controlling the on-off of power supply relay group 8
The power supply and power-off changed and control deflection negative electrode A-1 may be implemented, deflect positive electrode A-2, may be implemented in particulate collection zone B
(such as positive electricity may be implemented in the polar switching of each electrode energization quantity and energization in each electric discharge group and collection group
Whether the particulate collection zone B-1 corona wire 9 in one group of B-1-1 that discharges is powered, the columns of energization and be logical positive high voltage electricity or
Negative high voltage electricity)；The output voltage values of the also controllable controllable high-voltage power supply 7 of controller 12, controllable high-voltage power supply 7 have multiple independences
Voltage output channel, different electrodes can be accomplished individually to convey different numerical value according to the control instruction of controller 12
On voltage to corresponding electrode, to realize intelligent control.
As shown in attached drawing 2,3,5, the control method and working principle of the intelligent gas purification system are as follows: controller 12 controls
Electrostatic precipitator starting, air-flow are entered inside electrostatic precipitator by air-introduced machine (not shown).It is dense by master first
Spend the particle concentration in the air-flow in the acquisition of sensor 4 exit inlet channel 1-1.
Into Rule of judgment one, when granule density is not more than preset value, down-stream does not start, main concentration sensor 4 after
Particle concentration in the air-flow in the continuous detection exit inlet channel 1-1.When concentration is greater than preset value (such as the μ of pm2.5 > 75 g/m3)
When controller 12 control rotation deflector be deformed into tubaeform dispersal pattern, the contaminant particle in air-flow is covered with entirely at this time
Particle deflecting region A, while entering deflecting electrode energizing step, i.e., controller 12 controls power supply relay group 8 and controllable high-voltage electricity
Source 7 is passed through high voltage direct current (voltage between the two is 1kV-10kV) to deflection negative electrode A-1 and deflection positive electrode A-2, this
When positioned at the rear portion the particle deflecting region A front particulate collection zone B front granule density sensor group 5 start to work.
Into Rule of judgment two, when a large amount of positively charged and/or electronegative particle is not present in particle deflecting region A, just
When the particle entered in electric particulate collection zone B-1 and negative electricity particulate collection zone B-3 is less, i.e., as concentration sensor 5-1 and/or 5-
When 5-2 concentration (M is > 1, according to actual needs adjustable ratio value) of 3 concentration value < M times, controller 12 controls power supply
Relay group 8 disconnects the power supply for deflecting negative electrode A-1 and deflecting positive electrode A-2, while controlling power supply relay group 8 and controllable height
Two groups of one group of B-1-1 of electric discharge of the voltage source 7 into particulate collection zone B, electric discharge B-2-1 and three groups of B-3-1 of electric discharge are passed through negative direct current
(lead to negative electricity to corona wire 9 is because the electric discharge of negative electricity hachure is more prone to produce free electronics/anion and and pollutant to high-voltage electricity
Particle, which combines, makes its electrification), control, which collects one group of B-1-2, collects two groups of B-2-2 and collects three groups of B-3-2, accesses controllable high-voltage
The anode of power supply 7；Controller 12 acquires the data of front granule density sensor group 5 and rear portion granule density sensor group 6, and
Into the area B particle concentration feedback regulation mode, the deflecting electrode energizing step of upper level is returned after a period of time.
When there is a large amount of positively charged and/or electronegative particle in particle deflecting region A, and under the action of deflecting electrode
Concentration value >=M times of 5-2 concentration (M > 1, according to practical need when to electrode deflection, i.e., as concentration sensor 5-1 and/or 5-3
Want adjustable ratio value) when, the control rotation deflector 3 of controller 12 is deformed into laminar flow bootmode, i.e. rotation deflector becomes
Shape is laminar flow bootmode, while particulate collection zone B enters polarity collection mode, i.e. controller 12 controls power supply relay group
One group of B-1- is collected in the anode of 8 electric discharge into positive particles collecting region B-1, one group of B-1-1 access controllable high-voltage power supply 7, control
(connect electricity in this way may be implemented to increase into positively charged in positive particles collecting region B-1 the cathode of 2 access controllable high-voltage power supplys 7
The carried charge of contaminant particle makes it easier to by the baffling collecting board 10 and side collecting board 11 in positive particles collecting region B-1
It collects)；It is controllable high that controller 12 controls two groups of B-2-1 accesses of electric discharge of the power supply relay group 8 into neutrophil granule collecting region B-2
The anode of two groups of B-2-2 access controllable high-voltage power supplys 7 is collected in the cathode of voltage source 7, control；Controller 12 controls power supply relay
Three groups of B- are collected in the cathode of three groups of B-3-1 access controllable high-voltage power supplys 7 of electric discharge of the group 8 into negative electricity particulate collection zone B-3, control
3-2 accesses the anode (being equally the carried charge for increasing electronegative contaminant particle) of controllable high-voltage power supply 7, and enters the area B
Grain object concentration feedback shaping modes.
Enter Rule of judgment three after a period of time, it is a large amount of positively charged and/or with negative when existing in particle deflecting region A
The particle of electricity, and when under the action of deflecting electrode to electrode deflection, i.e. the concentration value > as concentration sensor 5-1 and/or 5-3
When N times of 5-2 concentration (N is < 1, according to actual needs adjustable ratio value), polarity collection mode is returned.When particle is inclined
Turn that a large amount of positively charged and/or electronegative particle, positive particles collecting region B-1 and negative electricity particulate collection zone are not present in area A
Concentration value≤N times of 5-2 concentration (N < 1) when the particle entered in B-3 is less, i.e., as concentration sensor 5-1 and/or 5-3
When, the control rotation deflector of controller 12 is deformed into tubaeform dispersal pattern by laminar flow pattern, and after returning to Rule of judgment two
Deflecting electrode deenergizing step.
The area B particle concentration feedback regulation mode by taking positive particles collecting region B-1 as an example, is located at it in conjunction with attached drawing 2,4
The particulate matter that granule density sensor 6-1 detection in rear portion is discharged in positive particles collecting region B-1 air-flow after electrostatic precipitation is dense
Degree, the concentration that granule density sensor 6-1 is detected when rear portion are greater than preset value (such as the μ of pm2.5 > 45 g/m3) when, explanation is removed
Dirt efficiency reduces, and controller 12 controls the energization quantity (raising that power supply relay group 8 increases corona wire 9 in one group of B-1-1 of electric discharge
Charged efficiency) and or control controllable high-voltage power supply 7 increase electric discharge one group of B-1-1 and collect one group of B-1-2 between voltage (mention
High collection efficiency)；When the concentration that granule density sensor 6-1 is detected when rear portion is less than preset value, illustrate dust pelletizing system effect
Surplus, save the cost, the power supply relay group 8 that controller 12 controls reduce corona wire 9 in one group of B-1-1 of electric discharge in order to reduce power consumption
Energization quantity and or control controllable high-voltage power supply 7 reduce electric discharge one group of B-1-1 and collect one group of B-1-2 between voltage；Afterwards
Portion granule density sensor 6-1 carries out concentration sample at a certain time interval, and energization quantity and power-on voltage are in dynamic and adjust
In whole.The particle concentration feedback regulation mode and positive particles of neutrophil granule collecting region B-2 and negative electricity particulate collection zone B-3
Collecting region B-1 is identical, independently adjusts, does not interfere with each other between each particulate collection zone.
It should be noted that the only perfect condition flow chart after the system initial start shown in attached drawing 3, not generation
All working conditions of table, such as main concentration sensor 4 are constantly in sample states during entire dust pelletizing system works,
When the granule density that main concentration sensor 4 detects is not more than preset value, controller 12 will control entire dust pelletizing system and enter
Standby mode, in addition to air-introduced machine (not shown), main concentration sensor 4 and the other components of controller 12 do not work.Example again
Such as when entire dust pelletizing system is in normal operating conditions, the area B particle concentration feedback regulation mode is in operating status always,
It is not influenced by other (except switching standby mode) pattern switchings and the change of component working condition.
Embodiment two
With reference to attached drawing 1,6, by the deflection negative electrode A-1 in the particle deflecting region A of one electrostatic precipitator of embodiment and partially
Electrode A -2 of becoming a full member is removed, and magnetic deflection field A-3, the magnetic induction line direction of magnetic deflection field A-3 and air-flow is added in particle deflecting region A
Direction is vertical, the principle acted on when perpendicular to moving in magnetic field by magnetic field Lorentz force using charged particle, magnetic deflection field
A-3 realizes identical with deflecting electrode A-1 and A-2 in embodiment one effect, though obtain particle positively charged in air-flow deflect into
Enter positive particles collecting region B-1, so that electronegative particle deflection enters negative electricity particulate collection zone B-3 in air-flow.
Magnetic deflection field A-3 can be used the calutron (not shown) that is mounted on shell 1 and generate, and calutron can be with
For electromagnetic coil, controller 12 controls power supply relay group 8 and controllable high-voltage power supply 7 and feeds suitable direct current to calutron
Electricity forms stable magnetic deflection field A-3 in particle deflecting region A, by controlling the input voltage of controllable high-voltage power supply 7 to realize
Control the intensity size of magnetic deflection field A-3.
Control principle and control method and embodiment one in the embodiment is identical, and only deflecting electrode is powered off and deflected
Electrode energizing step is corresponding to replace with magnetic deflection field A-3 power-off and magnetic deflection field A-3 energizing step.Using the benefit of magnetic deflection field
Be since Lorentz force is always perpendicular to the direction of motion of charged particle, it is more preferable to the deflection effect of charged particle, be suitble to
The deflection of the particle less for electrically charged amount.
Embodiment three
With reference to attached drawing 1,7, magnetic deflection field A-3, deflection will be added in the particle deflecting region A of one electrostatic precipitator of embodiment
The magnetic induction line direction of magnetic field A-3 and airflow direction are vertical, using charged particle by magnetic field Lip river when perpendicular to moving in magnetic field
The principle of human relations hereby power effect, magnetic deflection field A-3 and deflecting electrode A-1 and A-2 collective effect, that is, pass through electric field force and Lorentz force
Collective effect makes particle deflection positively charged in air-flow enter positive particles collecting region B-1, so that electronegative in air-flow
Grain deflection enters negative electricity particulate collection zone B-3.It is available than using single electric field using the benefit that electric and magnetic fields are superimposed
Or the better deflection effect in magnetic field is compared with embodiment one, two effectively to reduce the length of particle deflecting region A, to subtract
The volume of small entire electrostatic precipitator.
Magnetic deflection field A-3 can be used the calutron (not shown) that is mounted on shell 1 and generate, and calutron can be with
For electromagnetic coil, controller 12 controls power supply relay group 8 and controllable high-voltage power supply 7 and feeds suitable direct current to calutron
Electricity forms stable magnetic deflection field A-3 in particle deflecting region A, by controlling the input voltage of controllable high-voltage power supply 7 to realize
Control the intensity size of magnetic deflection field A-3.
Control principle and control method and embodiment one in the embodiment is identical, only replaces deflecting electrode deenergizing step
Be changed to deflecting electrode power-off and magnetic deflection field A-3 deenergizing step, by deflecting electrode energizing step replace with deflecting electrode be powered and
Magnetic deflection field A-3 energizing step.
It above are only the preferred embodiment and institute's application technology principle of invention, anyone skilled in the art
In the technical scope disclosed by the present invention, the change or replacement embodiment being readily apparent that should all cover in protection of the invention
In range.
Claims (10)
1. a kind of magnetic electric compound gas purifier, which has shell (1), it is characterised in that: including along airflow direction
Inlet channel (1-1), particle deflecting region (A), particulate collection zone (B) and the outlet passageway (1-2) being arranged successively；The air inlet is logical
Homogenizing plate (2) are provided in road (1-1), for being laminar flow by the gas flow homogenization entered, inlet channel (1-1) rear portion leads to
Road is horn-type opening, is connect with the shell of the particle deflecting region (A), and the inlet channel rear portion (1-1) is the particle
Deflecting region (A) corresponds on the shell (1) on the position of the particle deflecting region (A) and is provided with calutron, calutron
Magnetic deflection field (A-3) is generated in the particle deflecting region (A), the magnetic induction line direction and air-flow side of the magnetic deflection field (A-3)
To vertical, so that positively charged particle in the gas flow is mutually deflected with electronegative particle and is separated.
2. a kind of magnetic electric compound gas purifier stated according to claim 1, it is characterised in that: the particle deflecting region (A)
Rear portion be the particulate collection zone (B), the particulate collection zone (B) is by the positive electricity arranged in parallel perpendicular to airflow direction
Grain collecting region (B-1), neutrophil granule collecting region (B-2) and negative electricity particulate collection zone (B-3) composition；The magnetic deflection field (A-3)
So that particle deflection positively charged in air-flow enters the positive particles collecting region (B-1), so that electronegative particle in air-flow
Deflection enters the negative electricity particulate collection zone (B-3), neutrophil granule enters the neutrophil granule collecting region (B-2)；Three collections
It is mutually isolated between area.
3. a kind of magnetic electric compound gas purifier according to claim 2, it is characterised in that: the particulate collection zone
(B) front is provided with front granule density sensor group (5)；The rear portion of the particulate collection zone (B) is provided with rear portion particle
Concentration sensor group (6)；The positive particles collecting region (B-1), the neutrophil granule collecting region (B-2) and the negative electricity particle
The preceding back-mouth of collecting region (B-3) is correspondingly arranged on the front granule density sensor group (5) and the rear portion particle is dense
Spend the granule density sensor in sensor group (6).
4. a kind of magnetic electric compound gas purifier according to claim 3, it is characterised in that: the inlet channel (1-
1) rear portion is provided with a pair of of rotation deflector (3), and the rotation deflector (3) can be used electric hinge and realize rotation, has
Laminar flow guidance and diffusion both of which, in laminar flow bootmode, two rotation deflectors (3) are parallel to airflow direction,
Two rotations deflector (3) are close to the inner walls of respective installation site when dispersal pattern；The inlet channel (1-1)
Rear portion is additionally provided with host grain concentration sensor (4)；The positive particles collecting region (B-1), the neutrophil granule collecting region (B-
2) and the front of the negative electricity particulate collection zone (B-3) is provided with electric discharge group, and rear portion is provided with collection group, each electric discharge
Group is made of multiple row corona wire (9)；Each collection group by be located at respective collecting region side wall side collecting board (11) and
Baffling collecting board (10) composition；Each electric discharge group and each collection group are separately connected the high-voltage electricity of opposed polarity；Institute
Baffling collecting board (10) is stated in the direction of the air flow in " people " word for rotating clockwise 90 ° of " eight " word and being rotated by 90 ° counterclockwise
Composition.
5. a kind of magnetic electric compound gas purifier according to claim 1-3, it is characterised in that: further include control
Device (12), controllable high-voltage power supply (7) and power supply relay group (8) processed, the controller (12) are electrically connected and control described controllable
High voltage power supply (7) and the power supply relay group (8), the controller (12) control the rotation deflector (3).
6. a kind of magnetic electric compound gas purifier according to claim 5, it is characterised in that: the controller (12) is even
Connect the host grain concentration sensor (4), the front granule density sensor group (5) and the rear portion granule density sensor
Group (6)；The concentration sensor used is the particle concentration sensor of infrared ray, laser either CCD type.
7. a kind of magnetic electric compound gas purifier, which has shell (1), it is characterised in that: including along airflow direction
Inlet channel (1-1), particle deflecting region (A), particulate collection zone (B) and the outlet passageway (1-2) being arranged successively；The air inlet is logical
Homogenizing plate (2) are provided in road (1-1), for being laminar flow by the gas flow homogenization entered, inlet channel (1-1) rear portion leads to
Road is horn-type opening, is connect with the shell of the particle deflecting region (A), and the inlet channel rear portion (1-1) is the particle
Deflecting region (A) corresponds on the shell (1) on the position of the particle deflecting region (A) and is provided with calutron, calutron
Magnetic deflection field (A-3) is generated in the particle deflecting region (A), the magnetic induction line direction and air-flow side of the magnetic deflection field (A-3)
To vertical；The particle deflecting region (A) is parallel on the inner wall of shell described in the two sides of airflow direction (1) and is arranged in parallel with deflection
Negative electrode (A-1) and deflection positive electrode (A-2).
8. a kind of magnetic electric compound gas purifier according to claim 7, it is characterised in that: the particle deflecting region
(A) rear portion is the particulate collection zone (B), and the particulate collection zone (B) is by arranged in parallel just perpendicular to airflow direction
Electric particulate collection zone (B-1), neutrophil granule collecting region (B-2) and negative electricity particulate collection zone (B-3) composition；The positive particles are received
Ji Qu (B-1) and deflection negative electrode (A-1) are located at the same side of shell, the negative electricity particulate collection zone (B-3) and the deflection
Positive electrode (A-2) is located at the other side of shell, and the neutrophil granule collecting region (B-2) is located at the positive particles collecting region (B-
1) between the negative electricity particulate collection zone (B-3) and inlet channel (1-1) described in face, between three collecting regions mutually every
From；The electric field collective effect that the magnetic deflection field (A-3) and deflection negative electrode (A-1) and deflection positive electrode (A-2) generate,
So that particle deflection positively charged in air-flow enters the positive particles collecting region (B-1), so that electronegative particle in air-flow
Deflection enters the negative electricity particulate collection zone (B-3), and neutrophil granule enters the neutrophil granule collecting region (B-2).
9. a kind of magnetic electric compound gas purifier according to claim 8, it is characterised in that: the inlet channel (1-
1) rear portion is provided with a pair of of rotation deflector (3), and the rotation deflector (3) can be used electric hinge and realize rotation, has
Laminar flow guidance and diffusion both of which, in laminar flow bootmode, two rotation deflectors (3) are parallel to airflow direction,
Two rotations deflector (3) are close to the inner walls of respective installation site when dispersal pattern；The inlet channel (1-1)
Rear portion is additionally provided with host grain concentration sensor (4)；The positive particles collecting region (B-1), the neutrophil granule collecting region (B-
2) and the front of the negative electricity particulate collection zone (B-3) is provided with electric discharge group, and rear portion is provided with collection group, each electric discharge
Group is made of multiple row corona wire (9)；Each collection group by be located at respective collecting region side wall side collecting board (11) and
Baffling collecting board (10) composition；Each electric discharge group and each collection group are separately connected the high-voltage electricity of opposed polarity；Institute
Baffling collecting board (10) is stated in the direction of the air flow in " people " word for rotating clockwise 90 ° of " eight " word and being rotated by 90 ° counterclockwise
Composition.
10. it is a kind of for a kind of described in any item control methods of magnetic electric compound gas purifier of claim 1-9, it is special
Sign is, comprising:
Step 1, collection mode is deflected into particulate matter, detects in air-flow with the presence or absence of a large amount of with positive electricity and/or negative electricity
Grain；
Step 2, then enter polarity collection mode if there is a large amount of particles with positive electricity and/or negative electricity, if it does not,
Then enter common electric discharge collection mode；The method that two kinds of collection modes are all made of concentration sensor feedback regulation determines discharge voltage
And/or the quantity of corona wire.
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| CN202010227839.4A CN111420804B (en) | 2019-06-18 | 2019-06-18 | Magnetoelectric composite gas purification method |
| CN201910525406.4A CN110237931B (en) | 2019-06-18 | 2019-06-18 | Magnetoelectric combined type gas purifier and control method thereof |
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| CN201910525406.4A CN110237931B (en) | 2019-06-18 | 2019-06-18 | Magnetoelectric combined type gas purifier and control method thereof |
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| CN114178052A (en) * | 2021-10-26 | 2022-03-15 | 无锡华德电子科技有限公司 | Electric precipitation control method and system based on transformer loss |
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Also Published As
| Publication number | Publication date |
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| CN110237931B (en) | 2020-07-21 |
| CN111420804B (en) | 2022-04-15 |
| CN111420804A (en) | 2020-07-17 |
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