CN102764558B - Method for removing randon daughters in air - Google Patents
Method for removing randon daughters in air Download PDFInfo
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- CN102764558B CN102764558B CN201210278469.2A CN201210278469A CN102764558B CN 102764558 B CN102764558 B CN 102764558B CN 201210278469 A CN201210278469 A CN 201210278469A CN 102764558 B CN102764558 B CN 102764558B
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- voltage electrostatic
- radon daughter
- electrostatic field
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000005686 electrostatic field Effects 0.000 claims abstract description 26
- 239000000835 fiber Substances 0.000 claims abstract description 23
- 239000000126 substance Substances 0.000 claims abstract description 23
- SYUHGPGVQRZVTB-UHFFFAOYSA-N radon atom Chemical compound [Rn] SYUHGPGVQRZVTB-UHFFFAOYSA-N 0.000 claims description 85
- 229910052704 radon Inorganic materials 0.000 claims description 81
- 230000000694 effects Effects 0.000 claims description 17
- 230000005611 electricity Effects 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 238000004378 air conditioning Methods 0.000 abstract description 4
- 241000894006 Bacteria Species 0.000 abstract description 3
- 241000233866 Fungi Species 0.000 abstract description 3
- 244000005700 microbiome Species 0.000 abstract description 3
- 238000004887 air purification Methods 0.000 abstract description 2
- 239000000428 dust Substances 0.000 abstract 1
- 239000000779 smoke Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 23
- 239000002184 metal Substances 0.000 description 23
- 230000005684 electric field Effects 0.000 description 6
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 201000005202 lung cancer Diseases 0.000 description 5
- 208000020816 lung neoplasm Diseases 0.000 description 5
- 230000007123 defense Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- LBDSXVIYZYSRII-IGMARMGPSA-N alpha-particle Chemical compound [4He+2] LBDSXVIYZYSRII-IGMARMGPSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 230000035568 catharsis Effects 0.000 description 1
- 230000032823 cell division Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005354 coacervation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910052705 radium Inorganic materials 0.000 description 1
- HCWPIIXVSYCSAN-UHFFFAOYSA-N radium atom Chemical compound [Ra] HCWPIIXVSYCSAN-UHFFFAOYSA-N 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B03C3/40—Electrode constructions
- B03C3/41—Ionising-electrodes
-
- 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
- B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
- B03C3/011—Prefiltering; Flow controlling
-
- 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
- B03C3/019—Post-treatment of gases
-
- 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
- B03C3/02—Plant or installations having external electricity supply
- B03C3/04—Plant or installations having external electricity supply dry type
- B03C3/08—Plant or installations having external electricity supply dry type characterised by presence of stationary flat electrodes arranged with their flat surfaces parallel to the gas stream
-
- 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
- B03C3/02—Plant or installations having external electricity supply
- B03C3/04—Plant or installations having external electricity supply dry type
- B03C3/12—Plant or installations having external electricity supply dry type characterised by separation of ionising and collecting stations
-
- 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
- B03C3/40—Electrode constructions
- B03C3/45—Collecting-electrodes
- B03C3/47—Collecting-electrodes flat, e.g. plates, discs, gratings
-
- 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
- B03C3/86—Electrode-carrying means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/70—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by removing radon
-
- 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
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/06—Ionising electrode being a needle
-
- 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
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/10—Ionising electrode has multiple serrated ends or parts
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrostatic Separation (AREA)
Abstract
The invention relates to the air purification field, in particular to a method for removing randon daughters in the air. The method is characterized in that the method comprises at least the following steps that electriferous binding form randon daughters and unbinding form randon daughters are subjected to flow through a preset tubular high-voltage electrostatic field and a flat-plate high-voltage electrostatic field along with the air by means of a fan to be absorbed by electrodes with opposite polarities, so that one part of the randon daughters is removed; and the rest of electriferous binding form randon daughters and unbinding form randon daughters are subjected to flow through a preset chemical fiber filter along with the air so as to remove the rest. According to the method for removing randon daughters in the air, the randon daughters, inhalable particulate matters, smoke and dust and microorganisms of bacteria, fungi and the like can be removed effectively; the method is convenient to use, can be used alone, core parts can be mounted in return air inlets of central air conditioning systems to work synchronously with air conditioners; and devices used are safe and reliable in work, simple in operation, long in service life, and convenient to clean and maintain.
Description
Technical field
The present invention relates to air purification field, be specifically related to a kind of method removing Radon daughter.
Background technology
Radon (Rn) is a kind of colourless, the tasteless radgas produced by occurring in nature radium (Ra) decay.Rn is positioned at the periodic table of elements the VIth cycle zero group, and atomic number is 86.In normal conditions, the density of radon is 9.96mg/cm
3, be 7.7 times of air.Radon is monoatomic gas, has very strong diffusivity and penetration.Radon in building, mainly from rock and the soil of ground, in addition, also comes from some construction material---as construction material that some granites, bone coal material and industrial residue are made etc. and underground water.
Scientific research has been found that Indoor Niton can cause general population's Lung Cancer Risk to increase, and radon is listed in indoor important carcinogen by international cancer mechanism (IARC).
WHO takes stricter control criterion, by the control limit of Indoor Niton by 200 Bq/m
3be reduced to 100 Bq/m
3, and advise that various countries pay close attention to the harm of radon, take measures to reduce Indoor Niton and expose.Have data to show, China's lung cancer morbidity rate is high, and the cases of lung cancer caused because of Radon pollution every year reaches more than 50000 examples.Therefore, the development of containment lung cancer, controls and to administer various ambient induced factor particularly very urgent to the improvement of the harm of Indoor Niton.
The decay constant radon daughter of radon gas and radon is contained in air.After radon gas is sucked by human body, major part can be excreted.Radon daughter is metallic, with positive electricity, is easy to lag deposit in respiratory tract and lung after suction.The α particle that radon daughter decay produces can destroy or change the molecular structure of DNA in human body cell, causes abnormal cell division, finally brings out lung cancer.The dose conversion factor of the Radon and radon daughters that UNSCEAR provides is 0.17 and 9.0nSv/ (Bq h m respectively
-3), the dose of radiation produced human body after that is sucking Radon and radon daughters, only have 2% from radon, all the other are factors of radon daughter.Visible, the harm of the radon mainly internal radiation that causes human body of radon daughter, the concentration effectively reducing radon daughter is the key solving Radon pollution.
Summary of the invention
The object of this invention is to provide a kind of method removing Radon daughter, the method just charged in conjunction with state and in conjunction with state radon daughter along with air flow through high voltage electric field time, under the effect of Coulomb force, by the radon daughter in the principle of opposite polarity electrode adsorption removing air, and through poly array absorption, to realize the object purified air.
Realization of the present invention is completed by following technical scheme:
Remove a method for Radon daughter, it is characterized in that: described method at least comprises the following steps:
A () is by the effect of blower fan, by charged in conjunction with state with flow through the circular pipe type high-voltage electrostatic field and flat high-voltage electrostatic field that pre-set successively with air in conjunction with state radon daughter, make it adsorb by opposite polarity electrode, to remove the part in described radon daughter;
B () is by remaining described charged in conjunction with state with flow through the chemical fiber filter device pre-seted with air in conjunction with state radon daughter, to remove remainder after step (a).
The circular pipe type high voltage electrostatic device in described step (a) with adsorption function refers to: under the condition of high pressure, be positioned at the needle electrode in pipe centre to tube wall high-frequency discharge, form corona layer and positive and negative electrode, make with positive electricity radon daughter to electrostatic field negative pole-tube wall rapid movement, and effectively to be adsorbed.
The flat high-voltage electrostatic field pre-seted in described step (a) refers to: the high-voltage electrostatic field be made up of some plate electrodes, two pieces of plate electrode polarity adjacent between described some plate electrodes are contrary, the radon daughter entering the positively charged of flat high-voltage electrostatic field with air-flow through circular pipe type high-voltage electrostatic field further adsorb by the negative pole of flat high-voltage electrostatic field.
The bag-shaped chemical fiber filter net of what described step (b) middle filtrator adopted is thick effect or middle effect, in conjunction with the particle diameter of state radon daughter described in the space of described bag-shaped chemical fiber filter net is greater than.
Described method is applied in the return air inlet of central air conditioner system, works asynchronously with described central air conditioner system, in air circulation process, remove Radon daughter.
Described method being applied to has in the air purifier of blower fan, works asynchronously with described blower fan, forces room air to circulate, remove Radon daughter in the process by the work of described blower fan.
Advantage of the present invention is: in the process of air circulation, and the radon daughter in air, pellet, flue dust and the microorganism such as fungi, bacterium are removed efficiently, and reach the object purified air; Easy to use, both can be used alone, and also can its core was installed in the return air inlet of central air conditioner system, work asynchronously with air-conditioning; Safe and reliable, easy and simple to handle, long service life, cleaning are easy to maintenance.Not only be conducive to reducing radon daughter to pollute, reduce dose of radiation suffered by related personnel, and have the microorganism such as bacterium, fungi and pellet and kill efficiently and catharsis, be conducive to lifting and the improvement of interior of building integrated air quality.
Monomer purification except radon equipment, in high concentration situation, is started shooting >=3 hours, in conjunction with state radon daughter RnD removal efficiency 80%-90%; To in conjunction with state radon daughter RnDu removal efficiency 60%-80%; System purification except radon device power-up after 5 hours, year effective dose reduced rate can reach 70%-80%.For the ordinary residence just exceeded standard, for the common furniture construction that radon consistence has just exceeded standard, clarifier run duration RnD reduced rate 92%-96%, RnDu reduced rate 40%-50%, effective dose reduced rate 60%-76%, according to measured result estimation year effective dose at 1.8-2.2mSv, all lower than the dosage lower control limit of 3mSv, and be in stable state.
Accompanying drawing explanation
Fig. 1 is device top view of the present invention;
Fig. 2 is circular pipe type high voltage electrostatic device front view in Fig. 1;
Fig. 3 is the side view of Fig. 2;
Fig. 4 is circular pipe type high-pressure electrostatic Electric Field Distribution situation in the present invention;
Fig. 5 is Fig. 1 middle plateform formula high voltage electrostatic device front view;
Fig. 6 is the side view of Fig. 5;
Fig. 7 is chemical fiber filter device front view in Fig. 1;
Fig. 8 is the side view of Fig. 7;
Fig. 9 is circular pipe type high-voltage electrostatic field of the present invention and flat high-voltage electrostatic field operation principle schematic diagram;
Figure 10 is that the present invention is to the clearance of RnD, RnDu in civil air defense constructions and installations (basement) and reduction E
alwaystest data table;
Figure 11 is that the present invention is to the clearance of RnD, RnDu in residential building and reduction E
alwaystest data table.
Detailed description of the invention
Feature of the present invention and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that the understanding of technical staff of the same trade:
As shown in figs. 1-11, mark 1-22 in figure to be respectively: chemical fiber filter device 1, flat high voltage electrostatic device 2, circular pipe type high voltage electrostatic device 3, electrode needle 4, metal circular tube 5, metallic plate 6, screw 7, high-tension cable 8, insulated column 9, attaching plug 10, conducting bracket 11, high voltage source 12, Insulating frame 13, air inlet 14, air outlet 15, insulation board 16, plate electrode 17, nut 18, conductive pole 19, metal spacer 20, bag-shaped chemical fiber filter net 21, metal framework 22.
Embodiment: the removal radon daughter method that the present embodiment adopts is divided into two steps:
1) by the effect of blower fan, the radon daughter with positive charge is made to flow through the circular pipe type high-voltage electrostatic field and flat high-pressure electrostatic electric field that pre-set successively with air, utilize the effect of Coulomb force, make the radon daughter with positive charge adsorb by the negative electrode of high-voltage electrostatic field, eliminate a part of radon daughter in air.
2) in the air of first purification, a part of radon daughter is also remained, now make it again through a chemical fiber filter device, the principle utilized is: when under the effect of charged radon daughter at air-flow with certain speed by chemical fiber filter device time, effect due to frictional force makes chemical fiber filter device bring rapidly negative electricity electric charge, and the accumulation of these electric charges makes to be adsorbed on filter surfaces with the radon daughter of positive electricity electric charge.
Based on above-mentioned method, the present embodiment relies on a combined type high voltage electrostatic device to realize removing the object of Radon daughter.
As shown in Figure 1, the combined type high voltage electrostatic device that the present embodiment adopts is made up of chemical fiber filter device 1, flat high voltage electrostatic device 2, circular pipe type high voltage electrostatic device 3 successively array, in figure, arrow represents flowing through of wind, namely this array order should follow wind successively through circular pipe type high voltage electrostatic device 3, flat high voltage electrostatic device 2, chemical fiber filter device 1 to reach best result of use, namely best removal radon daughter effect.
As shown in Figure 2,3, the circular pipe type high voltage electrostatic device 3 of the present embodiment is made up of electrode needle 4, metal circular tube 5, metallic plate 6, conducting bracket 11, Insulating frame 13 etc.Air channel for ventilating in the cavity of metal circular tube 2, its two ends are respectively air inlet 14 and air outlet 15.Insulating frame 13 is the semiclosed boxed frame of a hollow.The hollow side place of Insulating frame 13 is connected with a metallic plate 6, and metallic plate 6 designs according to the shape size at position, air port, and on its face, cellular setting-in arranges some metal circular tubes 5.The air inlet 14 pore end face of metal circular tube 5 runs through metallic plate 6, its object is to make wind energy enough pass through metal circular tube 5.Some electrode needle 4 are fixed on conducting bracket 11, and conducting bracket 11 both sides are affixed insulated column 9 respectively, and the other end and the metallic plate 6 of insulated column 9 are affixed, and insulated column 9 is fixed by screw 7 and Insulating frame 13.Insulated column 9 controls the position of conducting bracket 11, the some electrode needle 4 affixed with conducting bracket 11 are made to be positioned air outlet 15 place of some metal circular tubes 5, and be all positioned on the axial line of every root metal circular tube 5, and electrode needle 4 is equal with both metal circular tubes 5 quantity, i.e. electrode needle 4 and metal circular tube 5 one_to_one corresponding.Metallic plate 6, conducting bracket 11 are connected with high voltage source 12 respectively by high-tension cable 8, and high voltage source 12 connects power supply by attaching plug 10.Pipe stylus structure high voltagehigh frequency electric field is formed in every root metal circular tube 5 inside by above-mentioned arrangement.
Operation principle for circular pipe type high voltage electrostatic device 3 has following description: as shown in Figure 4, and be communicated with positive electricity by high voltage source 12 pairs of electrode needle 4, metallic plate 6 is communicated with negative electricity, and both constitute circular pipe type structure high-voltage electrostatic field.After entering circular pipe type high-voltage electrostatic field with the radon daughter of positive electricity with air-flow, namely attract by the negative pole of electric field, fast to the motion of electric field negative pole-metal circular tube 5 tube wall, and effectively adsorbed.
Because electrode needle 4 is positioned on the axial line of metal circular tube 5, the arcing distance between needle point with metal circular tube 5 tube wall is equal, can not produce the dead angle of low field intensity, also not easily produce ozone in whole metal circular tube 5.In addition for set central air conditioner air inlet cross section, select appropriate metal circular tube 5 quantity and arrangement mode, draught area large as far as possible can be obtained, windage is reduced, do not affect the operating mode of existing air-conditioning system.
As shown in Figure 5,6, flat high voltage electrostatic device 2 is made up of insulation board 16, plate electrode 17, nut 18, conductive pole 19, metal spacer 20, some plate electrodes 17 interval and be parallel to each otherly fixed on conductive pole 19 at a certain distance, conductive pole 19 is fixed respectively by nut 18 in conductive pole 19 both sides.Plate electrode 17 is being communicated with high voltage source by conductive pole 19.Under the effect of high voltage source, the polarity of two pieces of adjacent plate electrodes 17 is respectively positive pole and negative pole.Metal spacer 20 is arranged between insulation board and outermost two pieces of plate electrodes 17, to improve its safety in utilization.
Operation principle for flat high voltage electrostatic device 2 has following description: after in the high-voltage electrostatic field that the charged particles such as radon daughter enter flat high voltage electrostatic device 2, moves, and be captured to opposite polarity plate electrode 17.This device adopts electrostatic force as the driving force of radon daughter attachment, coacervation process, and on the other hand, once particulate forms attachment cohesion, the suction of charged particle self and electrostatic force maintain the attachment of this particle on plate electrode 17 and cohesion jointly.
As shown in Figure 9, radon daughter is through the principle schematic of pipe stylus high voltage electrostatic device 3 and flat high voltage electrostatic device 2.
As shown in Figure 7,8, chemical fiber filter device 1 is made up of bag-shaped chemical fiber filter net 21, metal framework 22, and bag-shaped chemical fiber filter net 21 is fixed on metal framework 22.
Operation principle for bag-shaped chemical fiber filter net 21 has following description: the present embodiment adopts thick effect or middle effect chemical fiber filter device to remove in conjunction with state radon daughter and nano level in conjunction with state radon daughter.First this filtering material has non-hygroscopic, that electrical insulating property by force, easily produces electrostatic and maintenance electrostatic feature.When under the effect of the particulates such as radon daughter at air-flow with certain speed by chemical fiber filter device 1 time, effect due to frictional force makes chemical fiber filter device 1 bring rapidly negative electricity electric charge, and the accumulation of these electric charges makes effectively to be adsorbed on the surface of filter with the radon daughter of opposite charges.
The present embodiment is in the specific implementation: the device of employing can be used alone, and also can attach it in the return air inlet of central air conditioner system, work asynchronously with air-conditioning.When be in be used alone when, need additionally to arrange a blower fan at air inlet 14 place of its metal circular tube 5, its object is to: room air directed circulation is flowed, force room air by the combined type high voltage electrostatic device of the present embodiment, strengthen the usefulness of circular pipe type high voltage electrostatic device 3, flat high voltage electrostatic device 2, the daughter of chemical fiber filter device 1 purified treatment Radon.In addition the air quantity of blower fan is determined by the interior space size needing to purify.
As shown in Figure 10,11, the combined type high voltage electrostatic device adopting the present embodiment method and the present embodiment to rely on in civil air defense constructions and installations (basement) and residential building test.
The combined type high voltage electrostatic device that the present embodiment relies on removes radon device three air quantity (high wind=600m
3h
-1; Weak wind=550m
3h
-1; Sleeping wind=480m
3h
-1), different air quantity is tested respectively, has estimated changing and consequent year effective dose (E in conjunction with state with in conjunction with state radon daughter concentration before and after start by workplace 2700 hours working times in year of stop and house 7000 hours working times in year of stop
always=ERnD+ERnDu).
Civil air defense constructions and installations (basement) is tested: after combined type high voltage electrostatic device runs 4h, radon daughter RnD clearance is 80%-87%; In conjunction with state radon daughter RnDu clearance 60%-80%; Year effective dose E
alwayscan 70%-80% be reduced, fall radon successful.
Residential building is tested: combined type high voltage electrostatic device run duration radon daughter RnD clearance is 92%-96%; In conjunction with state radon daughter RnDu clearance 40-50%; According to measured result estimation year effective dose at 1.8-2.2mSv, all lower than the dosage lower control limit of 3mSv national Specification.
Claims (4)
1. remove a method for Radon daughter, it is characterized in that: described method at least comprises the following steps:
A () is by the effect of blower fan, by charged in conjunction with state with flow through the circular pipe type high-voltage electrostatic field and flat high-voltage electrostatic field that pre-set successively with air in conjunction with state radon daughter, make it adsorb by opposite polarity electrode, to remove the part in described radon daughter, the circular pipe type high-voltage electrostatic field wherein with adsorption function refers to: under the condition of high pressure, be positioned at the needle electrode in pipe centre to tube wall high-frequency discharge, form corona layer and positive and negative electrode, make with positive electricity radon daughter to high-voltage electrostatic field negative pole and tube wall rapid movement, and effectively adsorbed, the flat high-voltage electrostatic field wherein pre-seted refers to: the high-voltage electrostatic field be made up of some plate electrodes, two pieces of plate electrode polarity adjacent between described some plate electrodes are contrary, the radon daughter entering the positively charged of flat high-voltage electrostatic field with air-flow through circular pipe type high-voltage electrostatic field further adsorb by the negative pole of flat high-voltage electrostatic field,
B () is by remaining described charged in conjunction with state with flow through the chemical fiber filter device pre-seted with air in conjunction with state radon daughter, to remove remainder after step (a).
2. a kind of method removing Radon daughter according to claim 1, it is characterized in that: the bag-shaped chemical fiber filter net of what described step (b) middle filtrator adopted is thick effect or middle effect, in conjunction with the particle diameter of state radon daughter described in the space of described bag-shaped chemical fiber filter net is greater than.
3. one kind relates in claim 1-2 the application of the method removing Radon daughter, it is characterized in that: described method is applied in the return air inlet of central air conditioner system, work asynchronously with described central air conditioner system, in air circulation process, remove Radon daughter.
4. one kind relates in claim 1-2 the application of the method removing Radon daughter, it is characterized in that: described method is applied to and has in the air purifier of blower fan, work asynchronously with described blower fan, force room air to circulate by the work of described blower fan, remove Radon daughter in the process.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202511399U (en) * | 2012-03-19 | 2012-10-31 | 上海苍穹环保技术有限公司 | High-pressure high-frequency dust-removing sterilization device |
| CN106563566A (en) * | 2016-11-04 | 2017-04-19 | 中国人民解放军理工大学 | Air radon daughter removing method and device |
| CN107219549B (en) * | 2017-05-17 | 2019-06-14 | 中国原子能科学研究院 | A kind of drop radon system for low Natural Radiation Level measuring chamber |
| CN107607986A (en) * | 2017-09-27 | 2018-01-19 | 成都理工大学 | A kind of radon daughter Electrostatic Absorption surveys radon daughter pollution in radon and recovers modification method |
| CN108224614A (en) * | 2018-01-30 | 2018-06-29 | 深圳中物兴华科技发展有限公司 | A kind of air comprehensive governing system |
| CN114935196B (en) * | 2022-06-07 | 2023-07-11 | 南华大学 | Air radon removing device and method based on liquid paraffin oil |
| CN115155811B (en) * | 2022-06-22 | 2023-12-19 | 南华大学 | Radon daughter filtering module and method based on high-voltage electrostatic field |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85108719A (en) * | 1985-11-12 | 1987-05-20 | 东北工学院 | The method and apparatus of mine air filtering radon daughter |
| US6761756B1 (en) * | 2002-04-23 | 2004-07-13 | Sandy Gomez | Air purification system for a central air conditioning unit |
| CN101832955A (en) * | 2010-05-26 | 2010-09-15 | 成都理工大学 | High-sensitivity alpha energy spectrum measuring method of radon concentration in air |
| CN201582929U (en) * | 2009-12-25 | 2010-09-15 | 东莞市利安达环境科技有限公司 | Radon-removing air purifier |
-
2012
- 2012-08-07 CN CN201210278469.2A patent/CN102764558B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85108719A (en) * | 1985-11-12 | 1987-05-20 | 东北工学院 | The method and apparatus of mine air filtering radon daughter |
| US6761756B1 (en) * | 2002-04-23 | 2004-07-13 | Sandy Gomez | Air purification system for a central air conditioning unit |
| CN201582929U (en) * | 2009-12-25 | 2010-09-15 | 东莞市利安达环境科技有限公司 | Radon-removing air purifier |
| CN101832955A (en) * | 2010-05-26 | 2010-09-15 | 成都理工大学 | High-sensitivity alpha energy spectrum measuring method of radon concentration in air |
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Denomination of invention: Method for removing randon daughters in air Effective date of registration: 20160426 Granted publication date: 20150225 Pledgee: Shanghai Jinshan Huimin village bank limited liability company Fengjing branch Pledgor: SHANGHAI CANGQIONG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: 2016310000013 |
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Inventor after: Pei Liqing Inventor after: Zhou Zhuxu Inventor after: Shang Bing Inventor after: Pei Renqing Inventor after: Li Feng Inventor after: Cui Hongxing Inventor after: Zheng Runzhong Inventor before: Pei Liqing Inventor before: Practice steel Inventor before: Zheng Zhiyong Inventor before: Han Xu Inventor before: Cui Hongxing Inventor before: Zheng Runzhong Inventor before: Bi Xiaoquan Inventor before: Zhou Zhuxu Inventor before: Geng Shibin Inventor before: Shang Bing Inventor before: OuYang Tehui Inventor before: Pei Renqing Inventor before: Li Feng Inventor before: Liu Qiulin |
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Effective date of registration: 20240109 Address after: 201401 Building 1, 1036 xizha Road, Fengxian District, Shanghai Patentee after: Shanghai Yurong Environmental Protection Technology Co.,Ltd. Address before: 200436 3F, No.301 Jiangchang 3rd Road, Zhabei District, Shanghai Patentee before: SHANGHAI CANGQIONG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |