CN104437020B - Indoor air purifier based on dielectric barrier discharge and PI nanofilm filtration - Google Patents

Indoor air purifier based on dielectric barrier discharge and PI nanofilm filtration Download PDF

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Publication number
CN104437020B
CN104437020B CN201410636790.2A CN201410636790A CN104437020B CN 104437020 B CN104437020 B CN 104437020B CN 201410636790 A CN201410636790 A CN 201410636790A CN 104437020 B CN104437020 B CN 104437020B
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film
dielectric barrier
barrier discharge
nano
filtration
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CN104437020A (en
Inventor
高翔
陈景欢
郑成航
骆仲泱
岑可法
倪明江
覃睿
沈之旸
曹飞飞
刘丁丁
施正伦
周劲松
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Zhejiang University ZJU
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Zhejiang University ZJU
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Abstract

The invention discloses an indoor air purifier based on dielectric barrier discharge and PI nanofilm filtration. The indoor air purifier comprises a box body with an air duct, wherein an inlet and an outlet which are communicated with the air duct are respectively formed in two ends of the box body; a fan is arranged at the inlet; a dielectric barrier discharge device is arranged in the air duct; and a PI nanofilm filtration cover with a purified gas outlet is formed in the outlet of the box body. According to the indoor air purifier based on dielectric barrier discharge and PI nanofilm filtration disclosed by the invention, three technologies such as dielectric barrier discharge, physical filtration and chemical catalysis are combined, a synergistic effect of low temperature plasma and chemical catalysis is utilized, the directional oxidation capacity is improved, and the air purification capacity is improved. Moreover, a foldable PI nanofilm with large filtering area is adopted, so that fine particles in air can be blocked, and the energy consumption is not increased.

Description

A kind of indoor air cleaner based on dielectric barrier discharge and pi nano-film filtration
Technical field
The present invention relates to indoor air purification field, more particularly, to one kind are based on dielectric barrier discharge and pi nano-film filtration Indoor air cleaner.
Background technology
Generally, people in one day 70%~90% time spend indoors, indoor air quality and inhabitation The operating efficiency of person is all directly related with psychosomatic health, and in indoor air pollutants topmost for inhalable particles (pm2.5) and VOC (vocs).The physiological structure of human body determines to pm2.5There is no any filtration, stop energy Power, specifically, the particle (pm that particle diameter is less than 1 μm1.0), alveolar can be directly entered, it is bigger to Health Impact.Indoor Building and ornament materials, furniture, adhesive used in finishing manufacturing process, wash used in paint vehicle and daily life The VOC (vocs) that the synthetics such as agent, cosmetics bring, such as formaldehyde, toluene, chloride, acetone, benzene Phenol etc. will will result in grievous injury to the respiratory tract of people, nervous system, liver, kidney and digestive system.Thus develop a kind of energy Enough middle pm that simultaneously purifies the air of a room1.0Become the task of top priority with the technology of vocs.
Both at home and abroad the purification method of room air is mainly had at present Cottrell process, wet-type dust removing method, adsorption cleaning method, Biofiltration process, non-equilibrium plasma method and nano-photo catalytic oxidizing process.
But it is used alone the problems such as above technology generally existing treatment effect is not good, economy is relatively low.Wherein, electrostatic precipitation Method needs vibration beating dust level, regular deashing, and electrostatic field is inoperative to vocs, substantially no removal effect;Wet type is removed Dirt method must be set up a set of water circulation system, for small-sized life device, high cost, and difficult in maintenance;Low-temperature plasma Body method has that device is simple, pressure drop is low, start and stop are convenient, facility compact and the advantage such as can work at normal temperatures and pressures, but wait from In daughter free radical reaction course, produce o simultaneously3Deng harmful side product.
The Chinese patent literature of such as Publication No. cn102777986a discloses a kind of indoor air-purification device, is related to Technical field of air purification, solved is the technical problem improving indoor air purification effect.This device includes casing, and from Under the supreme blower fan being sequentially arranged in casing, optical catalyst module, ion generator;The bottom of described casing is provided with air inlet, Its top is provided with air outlet;The exhaust outlet of described blower fan upwards, the air inlet just to lower box for the air entry;Described photocatalyst mould Block has multiple, lays from top to bottom, each optical catalyst module is equipped with the glass substrate that polylith is coated photocatalyst coating, each It is equipped with ultraviolet generater in optical catalyst module;It is provided with an air being located between two optical catalyst modules in described casing to add Hot cabin, is provided with far-infrared heater, temperature inductor in air heating compartment;It is capped with one saturating on the air inlet of described lower box Gas activated carbon filter plate.The program integrated use technology such as charcoal absorption dedusting and infrared sterilization, for dedusting simultaneously and Sterilization serves certain effect, but relies on the removal effect for finely ground particles for the method for charcoal absorption in the program Not good, and rely on charcoal absorption removal efficiency too low.
In addition the existing air cleaning unit being commercially used for dedusting, is generally provided with multiple filtration film, higher to reach Dedusting effect.But these air cleaning units are bulky, because between air inlet and air outlet, pressure differential is very big, need Want powerful blower fan, not only power consumption is big, noise is also big, is not suitable for indoor use.
Content of the invention
For the problem overcoming prior art to exist, the invention provides being based on dielectric barrier discharge and pi nano-film filtration Indoor air cleaner, energy-conserving and environment-protective, operating cost are low, non-secondary pollution, be applicable to different interiors operating modes.
The technical scheme of solve problem of the present invention is: a kind of Interior Space based on dielectric barrier discharge and pi nano-film filtration Gas purifier, including the casing with air channel, tank ends are the inlet and outlet connecting with air channel respectively, and this entrance is installed There is blower fan, dielectric barrier discharge device is installed in described air channel;The outlet of described casing is provided with the pi of clean gas outlet Nano-film filtration cover.
Described dielectric barrier discharge device produces low temperature plasma by dielectric barrier discharge, will be organic for indoor volatility Gas is finally degraded to co2、h2O and other products.Pi nanometer film is nanofiltration film, can remove the pm of in the air1.0.Warp Cross double purified and process the removal that can simultaneously realize in the air organic pollution and solid pollutant.Heretofore described Pi nanometer film is also polyimide nano film.
Preferably, described pi nano-film filtration cover is included fixed frame and is arranged on this fixed frame with folding mode Pi nanometer film.
Preferably, the nanofiber average diameter of pi nanometer film is 50~800nm;The aperture of pi nanometer film is 0.1~5 μm, thickness is 0.5~100 μm.
Inventor finds the pi nanometer film of this specification to pm1.0Can reach more than 99% removal efficiency.The present invention is adopted The aperture of pi nanometer film less although molecule can be intercepted, but a certain amount of air resistance can be increased, to filtration The power consumption of efficiency and blower fan all has an impact, due to
Its filter efficiency is higher, increases energy consumption less, so the benefit of generally acquisition is higher than common filtering material.
Generally dielectric barrier discharge, in removing gas while pollutant, can produce a small amount of o3, o3Sterilization can be played Effect, a small amount of o generally in industrial application3It is directly discharged in the air, but for o during indoor air purification3Should go Remove, otherwise can affect health.
Preferably,
It is provided with the porous catalytic plate between dielectric barrier discharge device and pi nano-film filtration cover, institute in described air channel State and be loaded with mno on porous catalytic plate2.
Described catalytic plate is honeycomb ceramic plate, and honeycomb ceramic plate loads mno2Catalyst.Honeycomb ceramic plate porosity is high, Mno can be increased2Contact area with air.
Preferably, described pi nano-film filtration cover is hexahedron, the one side of pi nano-film filtration cover is sealing surface, with The relative side of this sealing surface is connected with air channel, and remaining four sides are equipped with clean gas outlet.
The outlet just to casing for the described sealing surface, and clean gas outlet is arranged on four sides, each clean gas outlet is equal It is provided with pi nanometer film, be on the one hand to change gas flow, on the other hand increase filter area, reduce clean gas outlet pressure Power, reduces air velocity, increases solid particulate matter sinking speed, improves filter efficiency.
On the premise of not increasing clarifier, in order to be optimized further, realize the maximum of filter area to such scheme Change,.After pi nanometer film is stacked, the filter area of pi nanometer film is increased several times, increase filter efficiency, less energy further Consumption.
As further preferred, described fixed frame include stacked pi nanometer film with increase filter area folding stand and with The press box of the fixing pi nanometer film of folding stand cooperation.
Preferably, described folding stand includes two fixed plates being oppositely arranged, and setting between the fixing plates many Individual folded film bar;Described folded film bar includes parallel two group, and each group folds film bar arranged for interval, mutual dislocation between two groups of folded film bars; Described press box has the knob of row's pectination, and the spacing of the size of knob folded film bar adjacent with same group matches, the spacing of knob Mate with folded film bar size.
The folded film shank diameter of described winding pi nanometer film is 3~5mm, and length is 180~220mm.Between adjacent folded film bar Cooperation make pi nanometer film have a bigger filter area, strengthen the effect of trap particulate matter.
Preferably, described dielectric barrier discharge device includes the battery lead plate being arranged in air channel, described cabinet exterior is solid Surely there are high-field electrode binding post and earth electrode binding post;Described battery lead plate is by the multiple electrodes bar group of electrode frame and arranged crosswise Become;Described electrode strip is made up of with the medium tube that covers in outside wire electrode wire electrode, and adjacent electrode silk passes through high-field electrode respectively Binding post and earth electrode binding post connect high voltage power supply and ground wire.
Preferably, described high-field electrode adopts a diameter of 5~15mm, and length is the long straight electrode rod of 690~2000mm, high Piezoelectricity pole is fixed by upper and lower two battery lead plates, reaches the effect of parallel connection;Described earth electrode is 1~10mm by width, thickness 0.8 The metal tape of~2.5mm is entwined on discharge tube.The material of described high-field electrode, earth electrode and battery lead plate is stainless One of steel, copper or aluminium.
Preferably, described wire electrode adopts the cylindrical metal silk of diameter 1~5mm, high-tension electricity polar filament and earth electrode silk to hand over For arrangement, between wire electrode, spacing selects 5~30mm.
Preferably, between described high-field electrode and earth electrode load voltage be 5kv~40kv, frequency be 50~ 5000hz.
Preferably, the fixed frame in described pi nano-film filtration cover is made up of lucite.The thickness of lucite is 10 ~20mm.
Preferably, described cabinet exterior is provided with two gas-tpe fittings stretching into air channel, described two gas-tpe fittings divide Not Wei Yu battery lead plate upstream and downstream.
The beneficial effects of the present invention is: joint dielectric barrier discharge and physical filtering and three kinds of technology of chemical catalysis, profit With the synergy of low temperature plasma and chemical catalysis, improve the ability of selective paraffin oxidation, by indoor VOC It is degraded to co eventually2、h2O and other products, further enhance its treatment effect, simultaneously reducing energy consumption, reduce secondary pollution, utilize Sieving of physical filtering etc. acts on, and indoor tiny particles content is removed.Wherein, catalyst can change electric discharge type and improve acceleration The new reactive material of the distribution of electronics, generation;Catalyst active component in plasma atmosphere strengthens simultaneously, adsorption mistake Cheng Gaishan, thermal excitation enhancing etc..
It is another advantage of the present invention that electrode design is become iris type, replace whole electric discharge with shelf depreciation, fully The activity of the plasma being produced using shelf depreciation, is the reaction of active particle provides enough spaces, it is to avoid reaction The energy loss that the reignition of process causes, compares whole electric discharge and reduces energy consumption, decrease secondary pollution;It is designed to narrow Gap double-dielectric barrier discharge, electrode spacing reduces, and the required voltage of ionization can accordingly reduce, and compares the larger electrode cloth of spacing Put form, requirement is reduced to the pressure of main reaction device, energy consumption also reduces;The region of discharge that gas gathers through wire electrode simultaneously During domain, gas is more evenly distributed, and substantially increases the generation probability of active particle.
Additionally, filter membrane is designed to collapsible by the present invention, by folded film bar, pi nanometer film is wound around back and forth, is realized The maximization of filter area.Using pi nanometer film fines thing is had efficient sieving, inertial collision and interception etc. act on, warp Test this novel nano-material polyimides filter membrane to pm1.0Can reach more than 99% removal efficiency.
Brief description
Fig. 1 is shown based on the indoor air cleaner structure of dielectric barrier discharge and pi nano-film filtration for a kind of of the present invention It is intended to.
Fig. 2 disassemble for Fig. 1 after schematic diagram.
Fig. 3 is the structural representation of single-piece electrode plate.
Fig. 4 is the a-a profile of Fig. 3.
Fig. 5 is the b-b profile of Fig. 3.
Fig. 6 arranges schematic diagram for electrode strip.
Fig. 7 is the schematic diagram of fixed frame and pi nanometer film.
Specific embodiment
With reference to specific embodiment, the invention will be further described.
The preparation method of pi nanometer film:
The pyromellitic acid anhydride (pmda) of equimolar amounts and p-phenylenediamine (ppd) is taken to be dissolved separately in n, n dimethyl methyl In acid amides (dmf) solvent, strong stirring under nitrogen protection, pmda solution is slowly dropped in ppd solution, at 15 DEG C simultaneously Then reaction system is warming up to 25 DEG C of reaction 3h, obtains polyamic acid (paa) solution by lower reaction 1h;By gained polyamic acid (paa) solution moves in 10ml syringe, and syringe needle adopts 16g~24g dispensing needle head, afterwards syringe is installed on syringe pump, pin Head connects DC high-voltage power supply, and receiving barrel installs aluminium foil additional and is grounded, and carries out electrostatic spinning under normal temperature, normal damp condition;Injection Pump injection speed is 1~2ml/h, and voltage is 10~15kv, and receiving range is 10~20cm, and receiving barrel rotating speed is 50r/min;It Afterwards the film on aluminium foil is put and 24h is dried at room temperature, be then heated to 300 in Muffle furnace with the heating rate of 5 DEG C/min ~250 DEG C and keep 4h, polyamic acid imidization is made to form polyimides (pi) nanometer film.
The process of the indoor air cleaner purify air based on dielectric barrier discharge and pi nano-film filtration of the present invention As follows:
(1) indoor pending air, through blower fan air inducing, enters the air channel of casing;
(2) pending air first passes around dielectric barrier discharge device, high-field electrode binding post and earth electrode binding post Between electrion produce high energy electron, these high energy electrons and gas molecule are (as n2、o2And h2O etc.), atom occur non-resilient Collision rift can produce active particle (as n2 *, o and oh etc.), active particle is highly unstable, and active particle can be by air In volatile organic contaminant oxidation.
(3) then pending air through positioned at tank outlet honeycomb ceramic plate, on honeycomb ceramic plate load mno2 The o of plasma discharge generation can be removed3, prevent o3Secondary pollution is caused to room air.
(4) gas after processing through step (2) and (3) enters pi nano-film filtration cover, and pi nanometer film rises to Incoming gas Sieving, inertial collision, interception etc. act on, and the fine particle in Incoming gas is stopped, and is purified air from four sides Outlet returns the interior space.
To sum up content, the indoor air cleaner of dielectric barrier discharge provided by the present invention and pi nano-film filtration, connection Close dielectric barrier discharge and physical filtering and three kinds of technology of chemical catalysis, compare single treatment technology, W-response is more efficient, whole Body device operating cost reduces, save energy, and secondary pollution is few, compact conformation, and floor space is little.And due to using iris type electricity Polar form, compares whole electric discharge and reduces energy consumption, decrease secondary pollution.In addition the collapsible pi being arranged in four sides receives Rice film, is capable of the fines thing (below 1 μm of particle diameter) of efficient removal in the air.Device entirety removal efficiency is high, good economy performance, Secondary pollution is few, and wherein when vocs efficiency of degrading reaches 85%, its specific energy consumption is about 1/10th of same level prior art, Product is co2、h2The safe product such as o.
Embodiment 1
As shown in figure 1, a kind of indoor air cleaner based on dielectric barrier discharge and pi nano-film filtration, including one Casing 1, the air channel passed through for supplied gas in casing 1, the two ends of casing 1 are import 2 and outlet 3 with air channel connection respectively.
At import 2, the blower fan 4 that room air introduces air channel is provided with by flange, in casing 1, dielectric impedance is installed Electric discharge device 5, outlet 3 is provided with pi nano-film filtration cover 6 by flange, is provided with honeybee in the air channel of casing 1 at outlet 3 Nest ceramic wafer, honeycomb ceramic plate is loaded with mno2.
Casing 1 is provided with measurement mouth 7, and its effect is to be convenient for measuring wind speed, pressure and other parameters.Dielectric barrier discharge device 5 It is respectively arranged in the front and the rear with a lucite gas-tpe fitting 8, connecting wireway in the device course of work can be hindered with direct measurement medium Pressure drop before and after gear electric discharge device 5.
Casing 1 outer wall is fixed with high-field electrode binding post 9 and earth electrode binding post 10.
Referring to Fig. 2~Fig. 5, dielectric barrier discharge device 5 includes multiple battery lead plates 11 being set in parallel in air channel, electrode Plate 11 is made up of the multiple electrodes bar 13 of electrode frame 12 and arranged crosswise.
The medium tube 15 by wire electrode 14 with outside covering in wire electrode for the electrode strip 13 is constituted, electrode frame 12 and medium tube 15 Material is quartz glass.Electrode strip 13 is divided into two-layer, and the electrode strip of different layers is mutually perpendicular to, and the electrode strip of same layer is mutually flat Shape, the adjacent wire electrode of same layer pass through respectively high-field electrode binding post 9 and earth electrode binding post 10 connect high voltage power supply and Ground wire.Electrode frame 12 is provided with the socket 16 of plug-in electrode bar, and the wire electrode connecting high voltage power supply is high-tension electricity polar filament, ground connection Wire electrode be earth electrode silk, each high-tension electricity polar filament is connected in series and is connected to high voltage power supply by wire 17, and wire 18 will be each Individual earth electrode silk is connected in series and is connected to ground wire.High-tension electricity polar filament and earth electrode silk draw from one end of respective medium tube Go out, and in opposite direction.Such as high-tension electricity polar filament is drawn from left side, then earth electrode silk is drawn from right side, and so setting is good Place is that from the same side extraction be same class wire electrode, is coupled together this of a sort wire electrode by height with a wire Crimping terminal or ground connection binding post are connected to outside casing.
With reference to Fig. 1, Fig. 2 and Fig. 7, pi nano-film filtration cover 6 monnolithic case is hexahedron structure, pi nano-film filtration cover 6 One side be sealing surface 19, there is opening the side relative with this sealing surface 19 and connect with air channel, and four sides of residue are all provided with There is clean gas outlet 20, be provided with pi nanometer film 21 at each clean gas outlet 20 and be in rugosity around the home by pi nanometer film 21 Fixed frame 22.
Fixed frame 22 includes the folding stand of stacked pi nanometer film 21, and the press box 23 with folding stand cooperation.
Folding stand includes two fixed plates 24 being oppositely arranged, and is provided with multiple folded film bars 25 between two fixed plates 24.Folded Film bar 25 includes two groups being arranged in parallel, respectively first group folded film bar 25a and second group of folded film bar 25b.First group of folded film bar Certain intervals are all had between 25a and between second group of folded film bar 25b.First group of folded film bar 25a and second group of folded film bar 25b phase Mutually misplace.
Press box 23 has the knob 26 of row's pectination, the spacing phase of the width of knob 26 folded film bar 25 adjacent with same group Join, the diameter matches of the spacing of knob 26 and folded film bar 25.
Embodiment 2
For real application systems, the indoor air purification based on dielectric barrier discharge and pi nano-film filtration of the present invention Device can be combined multiple accessory systems and be realized intelligent reminding and remotely control, specifically include air quality detection system, long-range control System processed, system for prompting.
Air quality detection system, its major function is used to detect the concentration of indoor air particulate matter, thus informing use Whether it is necessary or not at family starts air purifier;Tele-control system, its major function is that user can be indoor by mobile phone control The startup of air purifier, thus allow user can enjoy pure and fresh air in going back home;System for prompting, its main work( Can be to remind user's cleaning filter membrane.
Application examples 1
In order to illustrate the indoor air cleaner based on dielectric barrier discharge and pi nano-film filtration of the present invention for room The treatment effect of interior volatility organic pollutant, is processed to the waste gas containing toluene 10ppm using apparatus of the present invention. The wherein a diameter of 1mm of wire electrode, the spacing of adjacent electrode silk is 4mm, and exhaust gas flow is 10l/min, and selected frequency is 50hz's Processing, catalyst adopts mno to voltage2.When voltage swing is for 10kv, treatment effeciency is 85.4%;When voltage swing is During 12kv, treatment effeciency is 89.1%;When voltage is for 14kv, treatment effeciency is 93.7%;When voltage is for 16kv, process effect Rate is 95.5%, and the toluene concentration after now processing is 0.58ppm.
Application examples 2
In order to illustrate that assembly of the invention can reach good treatment effect for indoor fine particle, filled using the present invention Put and tested as follows: experiment is divided into 5 groups, and every group of experiment is repeated 4 times, experimental result processes and averages.
Test for wherein 3 groups and be: light a Hongta board cigarette in airtight indoor environment, (according to China with regard to air To air purifier effect detection standard in national standard gb/t18801-2002 of clarifier) and other environmental variances are certain In the case of, the species changing filter membrane records.Another two groups be fitted without pi nanometer film have cigarette and smokeless under the conditions of blank right According to.
After cigarette was put in interior, indoor accelerated test concentration (particularly less than 10 grades particle diameters) extremely rises violently, when beating After the indoor air cleaner based on dielectric barrier discharge and pi nano-film filtration of format invention, particulate matter quantity and quality are divided Number significantly declines, and is particularly up to 100% to 1 grade particles thing (0.0090664~0.017202 μm of particle diameter) removal effect.
Calculate analysis according to each group of data can obtain, the indoor air purification based on dielectric barrier discharge and pi nano-film filtration Device is to pm1.0Clearance be up to 99.8%, to pm2.5Clearance be up to 99.9%.Reach hepa (high Efficiency particulate air filter) efficient air purifier standard (effective for 0.1 μm and 0.3 μm Rate reaches 99.7%).
In industrial actual application, assembly of the invention can be used alone it is also possible to combine multiple accessory systems Realize Automated condtrol, such as dust pelletizing system, main reaction system, detecting system, automatic control system, warning system and bypass system System etc..
As described above, plan content given in conjunction with the accompanying drawings and embodiments, similar technical scheme can be derived.But Every content for departing from technical solution of the present invention, according to the technical spirit of the present invention above example is made any simple Modification, equivalent variations and modification, all still fall within the scope of technical solution of the present invention.

Claims (7)

1. a kind of indoor air cleaner based on dielectric barrier discharge and pi nano-film filtration, including the casing with air channel, Tank ends are the inlet and outlet connecting with air channel respectively, this entrance blower fan is installed it is characterised in that: in described air channel Dielectric barrier discharge device is installed;The outlet of described casing is provided with the pi nano-film filtration cover of clean gas outlet;
Described pi nano-film filtration cover is included fixed frame and is arranged on the pi nanometer film on this fixed frame with folding mode;
Described pi nano-film filtration cover is hexahedron, and the one side of pi nano-film filtration cover is sealing surface, relative with this sealing surface Side connect with air channel, remaining four sides are equipped with clean gas outlet.
2. a kind of indoor air cleaner based on dielectric barrier discharge and pi nano-film filtration as claimed in claim 1, its It is characterised by: the nanofiber average diameter of described pi nanometer film is 50~800nm;The aperture of pi nanometer film is 0.1~5 μm, Thickness is 0.5~100 μm.
3. a kind of indoor air cleaner based on dielectric barrier discharge and pi nano-film filtration as claimed in claim 1, its It is characterised by: the porous catalytic plate being provided with described air channel between dielectric barrier discharge device and pi nano-film filtration cover, It is loaded with mno on described porous catalytic plate2.
4. a kind of indoor air cleaner based on dielectric barrier discharge and pi nano-film filtration as claimed in claim 1, its It is characterised by: described fixed frame includes stacked pi nanometer film to be fixed with increasing the folding stand of filter area and being coordinated with folding stand The press box of pi nanometer film.
5. a kind of indoor air cleaner based on dielectric barrier discharge and pi nano-film filtration as claimed in claim 4, its It is characterised by: described folding stand includes two fixed plates being oppositely arranged, and setting multiple folded film bar between the fixing plates; Described folded film bar includes parallel two group, and each group folds film bar arranged for interval, mutual dislocation between two groups of folded film bars;Described press box tool There is the knob of row's pectination, the spacing of the size of knob folded film bar adjacent with same group matches, the spacing of knob and folded film bar chi Very little coupling.
6. a kind of indoor air cleaner based on dielectric barrier discharge and pi nano-film filtration as claimed in claim 1, its It is characterised by: described dielectric barrier discharge device includes the battery lead plate being arranged in air channel, described cabinet exterior is fixed with high pressure Electrode terminal and earth electrode binding post;Described battery lead plate is made up of the multiple electrodes bar of electrode frame and arranged crosswise;Described Electrode strip is made up of with the medium tube that covers in outside wire electrode wire electrode, adjacent electrode silk pass through respectively high-field electrode binding post and Earth electrode binding post connects high voltage power supply and ground wire.
7. a kind of indoor air cleaner based on dielectric barrier discharge and pi nano-film filtration as claimed in claim 6, its It is characterised by: described cabinet exterior is provided with two gas-tpe fittings stretching into air channel, described two gas-tpe fittings are located at electricity respectively The upstream and downstream of pole plate.
CN201410636790.2A 2014-11-13 2014-11-13 Indoor air purifier based on dielectric barrier discharge and PI nanofilm filtration Active CN104437020B (en)

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CN105435554B (en) * 2015-12-21 2018-06-12 华中科技大学 A kind of air cleaning unit
CN106731577B (en) * 2016-12-29 2019-08-20 上海新耦合空气净化技术有限公司 A kind of air cleaning unit of volatile organic contaminant
CN109506308B (en) * 2018-12-20 2023-11-10 北京懿风科技有限公司 Air purifier
CN113685949B (en) * 2021-07-30 2022-06-21 宁波方太厨具有限公司 A filtration for air purifier

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CN102679454A (en) * 2012-05-23 2012-09-19 北京华温科科技有限公司 Indoor air purifying device
CN103422253B (en) * 2013-07-30 2016-06-08 北京捷朗可控膜技术有限公司 A kind of High Strength Polyimide perforated membrane containing benzimidazole and benzene lateral group and preparation method thereof
CN203899307U (en) * 2014-01-24 2014-10-29 中国科学院重庆绿色智能技术研究院 Efficient low-resistance antibacterial air purification filter membrane
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