CN101943441B - Plasma air disinfecting and purifying air conditioner - Google Patents
Plasma air disinfecting and purifying air conditioner Download PDFInfo
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- CN101943441B CN101943441B CN 200910263791 CN200910263791A CN101943441B CN 101943441 B CN101943441 B CN 101943441B CN 200910263791 CN200910263791 CN 200910263791 CN 200910263791 A CN200910263791 A CN 200910263791A CN 101943441 B CN101943441 B CN 101943441B
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Abstract
The invention belongs to the technical field of air disinfection and purification, and in particular relates a plasma air disinfecting and purifying air conditioner. The plasma air disinfecting and purifying air conditioner comprises an indoor cabinet machine and an outdoor principal machine, wherein the indoor cabinet machine is internally provided with a plasma reactor, a pulse power supply, an air blower, a heat exchanger, and the like; the plasma reactor is internally provided with a positive electrode, a negative electrode and a plurality of micro-discharge preventing conductor rails, wherein the positive electrode is made of a plurality of metal bands which are arrayed in parallel, the negative electrode is an aluminium plate or a stainless steel plate, the plurality of micro-discharge preventing conductor rails are made of aluminium bars or stainless steel bars, and both ends of the positive electrode metal bands are respectively fixed on the corresponding positions of the micro-discharge preventing conductor rails. The invention can not only regulate the temperature, but also kill the bacteria and the viruses, degrade the organic compound pollutants, remove the granular aerosol without secondary pollution, has the advantages of energy saving, good reliability and long working service life, is specially designed for the air disinfecting and purifying air conditioner and can be used for places, such as a hospital, a clean room, an office building, a shopping mall, a hotel, a family, and the like.
Description
Technical field:
The invention belongs to technical field of air sterilization and purification, be specifically related to plasma air disinfection purification air-conditioning machine.
Background technology:
Along with the progress of socioeconomic development, science and technology, the people's living standard improves constantly, and air conditioner enters family, office, market, hotels and other places fast.Utilize air conditioner to regulate 22--28 ℃ of indoor temperature, created a comfortable indoor environment to people.All seal the pollutants such as pernicious gas, virus, bacterium and aerosol that indoor electric appliance equipment, ornament materials and personnel activity produce but open the air-conditioning door and window; And the going mouldy of the condensed water of air conditioner itself, filter screen, grow virus, mould, make many people get " air conditioner disease " and " harmful building syndrome ".Particularly several years ago légionaires' disease, SARS, bird flu, the outburst of the H1N1virus of present stage.The up-to-date epidemic situation communique that the World Health Organization delivers claims: global first influenza death toll surpasses ten thousand people, and wherein the U.S. has accounted for very big section.Vast energy consumption big country, the air-conditioning utilization rate is high, and Infection probability is certainly high." virus can be separated without medicine ", the improvement of indoor environmental pollution more and more causes people's attention, has caused concern and the attention of Environmental Protection in China expert and government.
Airborne virus and bacterium microbe exist mainly with the aerosol form of discrete particles shape greatly.The aerosol particle subnumber is proportional relevant with air-borne bacteria concentration in the air.Show according to the U.S. CDC investigation, the bacterial concentration in the air in the floating material is at 700～1800cfu/m
3The danger that happens occasionally and infect.Infectious pathogen is attached in the air usually≤and 5 μ m swim on the particulate, spread with Air Flow by aerosol form, and infected person is caused a disease because sucking this air, causes cross-infection.Use without the air conditioner of sterilizing function is that one of cross-infection key factor occurs.
For this reason, the professional person carries out Improvement to air conditioner, and technical scheme is nothing more than air disinfecting and purifying devices such as ultraviolet line style, ozone-type, electrostatic, plasma-type.
The electrostatic air disinfecting and purifying device utilizes anode discharge, makes airborne particle positively charged, under the effect of Coulomb force, the particle of positively charged is captured on the electronegative dust collect plant.It is made of parts such as ionization apparatus, dust collect plant, air-supply arrangement and high voltage sourcies, can catch the above particulate of Φ 0.01 μ m, and windage is little, and efficiency of dust collection is up to more than 90%.It is low that shortcoming is to decompose airborne harmful bacteria, virus and organic pollution ability; Bacterium, virus are trapped on the electronegative dust collect plant with particle, and the dust particle on battery lead plate accumulates more and untimely cleaning, and the anxiety of secondary pollution is arranged.
Ozone-type air disinfecting and purifying device (the title high energy electron type that has):
It utilizes high-frequency electric field to be added on two electrodes of medium isolation and does creeping discharge, at a large amount of plus or minus electronics of dielectric surface savings, have an effect with airborne molecule, produce the cluster ion of high-energy, high concentration, wherein cation can penetrate bacteria cell wall, gos deep into cell membrane inside, destroys the electrolytical balance of cell, damage cell membrane, cause the rapid death of bacterium, virus.The oxonium ion group who produces during the work of energetic ion reactor has extremely strong oxidation activity, makes large biological molecule such as DNA, the fracture of ANA chain, protein conformation is destroyed, thus killing microorganisms; Its TVOC that can also degrade eliminates peculiar smell, and it effectively avoids dirt residual, non-secondary pollution.
Shortcoming: ozone is a kind of strong oxidizer, should not place inflammable, that explosion hazard gases directly contacts arranged; A little less than the penetration power of ozone, low to object vertical-depth killing bacteria ability, can not control of dust.Shortcoming is ozone in case leak, and the human respiratory tract is damaged, and is eliminated gradually by hospital operating room, ward.
Ultraviolet air sterilization purification type (uV):
Ultraviolet disinfection adopts the low pressure mercury vapour discharge lamp to give off the microorganisms such as ultraviolet kill bacteria that wavelength is 253.7nm, virus under the high voltage electric field effect.The air that the ultraviolet disinfection system sends blower fan here gives sterilizing, goes back simultaneously degradation of organic substances and peculiar smell.
Major defect is: ultraviolet ray belongs to black light, easily leaks, and can damage human eye, skin; The quartz burner working life also only has 8000 hours.Problem is 100m
3Reach the Ministry of Public Health in the room about the II of hospital class environmental standard, energy consumption ultraviolet, that ozone will reach same Disinfection Effect is similar, is 160--240W; The particularly existence of defects, this also is the reason that Hospitals at Present seldom adopts.
The plasma-type air disinfecting and purifying device:
The plasma reactor of existing use in refrigeration system is comprised of positive electrode, negative electrode plate, insulating support and shell.It is several that the structure of positive electrode mainly contains wire, zigzag or prong shape.
Room air is under normal temperature, the atmospheric pressure state, select resistance to oxidation fine wire, zigzag or prong shape structure as the discharge positive electrode, metallic plate is as negative electrode, when the reactor of the extremely asymmetric discharge electrode of this class is made corona discharge and is produced plasma and carry out air disinfection and purification, the fine wire corona discharge is even, the generation plasma density is high, ought to be a kind of preferential.But the fine wire structure is carried out air disinfection and purification as the plasma reactor of discharge positive electrode, occurs before on the market, but makes no public appearances in present nearly 3 years, is replaced by zigzag or the prong shape structure reactor as the discharge positive electrode.
Reason is that present plasma reactor design is unreasonable: the discharge positive electrode that consists of plasma reactor selects fine wire easily to be blown.For this reason, the discharge positive electrode selects stainless steel to make zigzag or prong shape structure mostly.Although zigzag or prong shape are not easy to be blown, point discharge that they are in forms the discharge streamer, and can see in the darkroom has between positive electrode and the negative electrode that a purplish blue light fine rule about Φ 0.2mm--this is the aerial discharge non-uniform phenomenon.Plasma density is high near purplish blue light, and airborne oxygen and nitrogen easily are activated, and generates the unfavorable factors such as ozone and nitrogen oxide; And it is low to leave purplish blue light plasma density slightly at a distance, and the air disinfection and purification effect is just poor.The Disinfection Effect of this class reactor is subjected to the restriction of ozone and nitrous oxides concentration, and this also is that present professional and technical personnel feels a most thorny difficult problem.Also have a major defect be work less than some months, zigzag or prong shape discharge tip are because of the splash effect rust.Because the radius of curvature of positive electrode is larger, discharge inception voltage is higher, and discharge current reduces thereupon, and air disinfection and purification efficient can reduce certainly.This decay is subtle, and the plasma density reduction is not easy to be found by the user.Although reactor also in work, performs practically no function.
The sterilizing and purifying effect of plasma-type air disinfecting and purifying device is remarkable, in any case than above-mentioned several classes from microorganisms such as kill bacteria, viruses; Degradation of organic substances and to catch this three aspects: of particle all in no way inferior.Several years ago the paper of this respect, patent are many, but nearly four, five years are replaced by the electrostatic air conditioner with air purification of zigzag sparking electrode on the market gradually.Analyze according to investigations, main cause is that the wire of the discharge positive electrode in the plasma-type air disinfecting and purifying device is easily disconnected, and the ozone that makes the zigzag sparking electrode into is too dense, the low event of efficient.
For example: application number is 200710015213.1, open day: on December 24th, 2008, denomination of invention: " a kind of novel air conditioner air purification device ", independent claims state clearly: comprise that housing, transom window, light purify device and consists of, it is characterized in that: light purifies device and is arranged on the pipe support in the housing, and light purifies device and is made of glass ginseng pipe and excitation source, and excitation source is arranged on glass, and to join the pipe of pipe indoor, light purifies the glass ginseng pipe of device, and its tube wall surface is provided with photocatalysis layer.Said Catalytic Layer is nano-TiO
2, SiO
2Or the composite of metal ion.
The microorganisms such as this invention kill bacteria, virus and degradation of organic substances, peculiar smell are effective.But be provided with glass ginseng pipe and excitation source, ultraviolet ray can damage human eye, skin; It is short that glass ginseng plumber does the life-span, and the excitation source energy consumption is greatly self-evident.
For another example: application number is 200610044696.3, the applying date: on June 8th, 2006, denomination of invention: " purifying and sterilizing device for air conditioner ", claims state clearly: a kind of purifying and sterilizing device for air conditioner, it is characterized in that comprising main frame and the cabinet-type air conditioner of Split cabinet type air-conditioner, condenser and blower fan are housed in the cabinet-type air conditioner, air outlet window is arranged at cabinet-type air conditioner casing top, air-inlet window is arranged at the bottom, there is control panel the front, blower fan is corresponding with air-inlet window, is being disposed with electrostatic dust collector and adsorption filter above the blower fan and between the air outlet window.Electrostatic dust collector comprises zigzag sparking electrode, tubulose collection electrode and tubular discharge electrode, forms region of discharge between zigzag sparking electrode and tubulose collection electrode, forms dust collection section between tubular discharge electrode and tubulose collection electrode.
The zigzag sparking electrode long working life of this invention has the purifying sterilizing effect, and efficiency of dust collection is high.So shortcoming in point discharge, is discharged inhomogeneous, easily generates the unfavorable factors such as ozone and nitrogen oxide; Decompose harmful bacteria, virus and organic pollution ability low, the anxiety of secondary pollution is arranged.
Summary of the invention:
The present invention is in order to address the deficiencies of the prior art, provide can conditioning chamber in suitable temperature, again can kill bacteria, virus, degraded organic compound pollutant is removed granular aerosol, non-secondary pollution; And energy-conservation, the plasma air disinfection purification air-conditioning machine of good reliability, long working life.
In order to achieve the above object, the plasma air disinfection purification air-conditioning machine that the present invention is designed, comprise indoor machine and outdoor host computer, be provided with plasma reactor, the pulse power, blower fan, controller, air inlet, air outlet, air cleaner, wind deflector, heat exchanger in the indoor machine, be installed in the shell; Plasma reactor is located at the air outlet of blower fan, assembling is on wind deflector, high-voltage output end and the plasma reactor of the pulse power are electrically connected, the output of controller is electrically connected with the power input of the pulse power and blower fan respectively, and plasma reactor and heat exchanger are arranged in the air channel.Be provided with positive electrode and negative electrode in the described plasma reactor, positive electrode is to be located in the same plane by some sludge proof metal tapes to make an assembly by equidistant being arranged in parallel, and amounts to n group (n be 50 with interior integer); Described negative electrode is that aluminium sheet or corrosion resistant plate are made, and amounts to the n+1 piece, and positive electrode is arranged on adjacent two negative electrode middle parts.Also be provided with some the prevention micro discharge conductor rails of being made by aluminium bar or stainless steel strip in the plasma reactor, the two ends of described positive electrode metal tape are separately fixed at and stop on the micro discharge conductor rail on the opposite position; Stop the two ends of micro discharge conductor rail that an insulation attachment respectively is set, and be fixed in the corresponding installing hole of shell of reactor; Some stop the micro discharge conductor rail to make electric connection with the resistance to oxidation wire.
Preferably, described prevention micro discharge conductor rail is provided with the protuberance of equidistant arrangement, and the two ends of positive electrode are the protuberance tops that is separately fixed on the corresponding conductor rail; The protuberance of prevention micro discharge conductor rail up and down two of symmetries is made as one group, and every stops the protuberance of micro discharge conductor rail to establish the n group, and the protuberance top arranges laterally elbow; The positive electrode two ends are provided with the stainless steel connection box, are washed into square hole in the middle of the stainless steel connection box, and described protuberance 109 top elbows are inserted in the stainless steel connection box square hole; Described negative electrode is respectively established the negative electrode fixing pin of a protrusion by the upper/lower terminal on shell of reactor limit, recessing docking in shell of reactor corresponding position is fastening.
Preferably, described prevention micro discharge conductor rail is provided with the recess of equidistant arrangement, and recess is established the n group, and the two ends of positive electrode metal tape are the recesses that is separately fixed at corresponding prevention micro discharge conductor rail; The two ends of prevention micro discharge conductor rail are arranged on reactor four positive electrode metallic supports all around with quadrature again and fix, and make electric connection; The outer rim of positive electrode metallic support is provided with several prevention micro discharge conductor rail retainer plates cylindraceous, stops the equally spaced adjacent prevention micro discharge conductor rail of micro discharge conductor rail retainer plate; The upper/lower terminal of every positive electrode metallic support is established an insulation attachment installing hole corresponding with shell of reactor and is fixed, and establishes insulation attachment gim peg again the insulation attachment is fastened on the metallic reactors shell.
Preferably, described negative electrode surface is that the aluminium sheet of oxidation processes is made, and nanoscale TiO is laid on the two sides of negative electrode
2
Preferably, be provided with a semiconductor switch pipe Q1 and pulse booster transformer 216 in the described pulse power 2, semiconductor switch pipe Q1 and pulse booster transformer arrange by the single-ended flyback inverter circuit; The drain D of described semiconductor switch pipe Q1 is connected with the primary coil Same Name of Ends a1 of pulse booster transformer, the source S of switching tube Q1 is connected with input DC power DC negative pole through current-limiting resistor R1, and it is anodal that primary coil different name end b1 connects input DC power DC; Same Name of Ends a1, the a2 of primary coil and secondary coil and different name end b1, b2 oppositely arrange.
Preferably, described pulse booster transformer is provided with a multiple-grooved insulated coil skeleton, and secondary coil is minutes three sections, five sections to seven sections and is wound in the corresponding groove of multiple-grooved insulated coil skeleton and is in series; The upper end of each line bag respectively is provided with a high pressure fast recovery diode, and the positive pole of high pressure fast recovery diode is connected on the end of electronegative potential line bag, and the negative pole of high pressure fast recovery diode is connected on the initiating terminal of high potential line bag; Be provided with magnetic core in the endoporus of described primary coil and secondary coil and make electromagnetic coupled, be provided with magnetic air gap in the magnetic loop of magnetic core; Described magnetic core optimal design is unshakable in one's determination with iron-base ultramicro-crystal, also ferrite core can be set.
Preferably, the G utmost point of described switching tube Q1 is provided with drive circuit IC, is provided with oscillator ZTC, error amplifier WCF and comparator PWM in the drive circuit IC, and drive circuit IC makes a module; Also can select Switching Power Supply control integration circuit U C3842 class to substitute.
Preferably, the described positive electrode of making is to be made by the sludge proof high-resistance electrothermic alloy, also can be that the Aludirome material is made; The trade mark of the nickel chromium triangle metal tape of positive electrode is the high-resistance electrothermic alloy of Cr20Ni80, and the trade mark that also can be the ferrum-chromium-aluminum material is the high-resistance electrothermic alloy of 0Cr27A17Mo2; The metal tape width is 1--2mm, and thickness is 0.05mm--0.20mm.
The present invention compared with prior art has following beneficial effect:
Plasma air disinfection purification air-conditioning machine of the present invention is provided with indoor machine and outdoor host computer, is provided with plasma reactor, the pulse power, blower fan, heat exchanger etc. in the indoor machine, can sterilizing and purifying, can regulate indoor air temperature again.
Especially being provided with positive electrode in the plasma reactor is to be located in the same plane by the sludge proof metal tape to make by equidistant being arranged in parallel; Negative electrode is that aluminium sheet or corrosion resistant plate are made, and also is provided with some the prevention micro discharge conductor rails of being made by aluminium bar or stainless steel strip, and the two ends of positive electrode are separately fixed at and stop on the micro discharge conductor rail on the opposite position.So compared with prior art, Multipactor is prevented from the plasma reactor, makes every positive electrode make stable corona discharge in pulse power highfield, obtains aggressive plasma.That the point discharge state that is in of zigzag or prong shape is compared with discharge electrode, the positive electrode of metal tape is Uniform Discharge around the band shape, obtains plasma intensity and be the 2--4 of zigzag or prong shape doubly, can efficient kill bacteria, virus, the TVOC that can degrade again eliminates peculiar smell.High-pressure electrostatic field energy absorption particle diameter in the plasma reactor is little of the granular aerosol of 0.01 μ m.
Through surveying: at 20m
3Killing rate behind the work 20min of the present invention that the staphylococcus albus of artificial spray-painting in the sealing space air, rated power are 7W is more than 99.98%, and the killing rate of work 40min can be up to 100%.Degradation Formaldehyde rate 98.7%, ozone amount≤0.02mg/m is retained in suspended particles number≤350/L (Φ 〉=0.5 μ m) in the air
3
The output high-voltage pulse rise time that is again the pulse power that designs of the present invention is short.After deliberation, be to make the plasma reactor that is capacitive produce many high energy electrons in indoor environment, the excited gas molecule ionizes or from solution, produces the free radical of strong oxidizing property, preferably adopts burst pulse (a few μ S of pulsewidth, rise time are tens to hundreds of nS) discharge current.Within the extremely short time, electronics is accelerated into and is high energy electron, and the larger ion of other proton is because effect of inertia, has little time to be accelerated by electronics and substantially keep static in pulse moment.Airborne nitrogen and oxygen can not be activated, the ozone of generation and nitrogen oxide≤0.02mg/M
3, measured result is verified above-mentioned achievement in research.
What exploitation the present invention paid close attention to is: when the metal tape of positive electrode is made corona discharge in reactor, cause that sputter causes export license after, metal tape loss place is zoomed out apart from negative electrode plate afterwards because of damaged, discharge current reduces naturally; Otherwise the less position of metal tape loss discharge current increases automatically.Like this, the positive electrode loss is in the self-control state, further prolongs its working life, and the useful working life of positive electrode can reach 8--12, obtains beyond thought effect.
The present invention can regulate indoor temperature, again efficiently kill bacteria, virus, and degraded TVOC eliminates peculiar smell, removes granular aerosol, non-secondary pollution; And energy-conservation, good reliability, long working life.
Another achievement in research of the present invention is the conductor rail technical scheme of finding " the micro discharge phenomenon " in the plasma reactor and proposing to stop micro discharge.
It is nearly tens ages that plasma is used for air disinfection and purification equipment, and former plasma reactor positive electrode is selected the good fine wire of corona discharge, but is replaced by zigzag or prong shape structure in recent years.Zigzag or prong shape structure are that electrostatic air disinfection and purification equipment is first-selected, are used for plasma reactor undesirable.Trace it to its cause is that the fine wire discharge life is mostly at three, four months, everyly implementing the manufacturer that plasma reactor discharge positive electrode is selected the air disinfection purifier of zigzag or prong shape structure, majority was made wire as the plasma reactor of positive electrode in the past.Because " fracture of wire " just had no way out and made prong shape, zigzag electrode into.
Chinese invention patent application number is 200710038821.4, and denomination of invention " assembly modular type systyle electrostatic field device " specification homepage just proposes: " the fine rule easily defective of broken string has greatly affected the reliability of device." in the technical scheme of this invention, propose: a kind of assembly modular type systyle electrostatic field device; comprise discharge electrode (discharge electrode is positive pole), dust collector pole (receive electrode and be negative pole) and insulator; discharge electrode and dust collector pole spaced and parallel are arranged; the discharge electrode two ends connect the discharge electrode connector; the bottom of discharge electrode is zigzag; the top of discharge electrode is tubulose, zigzag discharge electrode and dust collector pole form dust collection section, the dust collector pole two ends connect receives electrode connecting parts, and discharge electrode connector and receipts electrode connecting parts are connected on the insulator.
" bottom of discharge electrode is zigzag " that foregoing invention is created is to do something against one's will.Would rather sacrifice the sterilizing and purifying effect, be a kind of prejudice with the technical scheme of the working life that exchanges disinfection purifier for.
Through investigation and analysis: most technical staff are in order to solve the Insulation Problems between the plasma reactor positive and negative electrode, select insulating materials to make directly fixing plasma reactor positive electrode wiry of support.Studies show that: the insulating materials that dielectric constant is high is beneficial to the positive and negative electrode of isolating high potential, and deadly defect is to produce " micro discharge phenomenon " in plasma reactor.The material that dielectric constant is higher, its surperficial micro discharge phenomenon more.In order to promote the sterilizing and purifying effect, often improve the additional power source voltage of plasma reactor, be the highfield that forms around the positive electrode, under the catalytic action of plasma, cause the local micro discharge that produces of wire and insulating materials contact area.The high energy electron that this micro discharge phenomenon produces plays direct effect to the ionization of insulating materials and metallic conduction material molecule with from solution, and catabolite is their oxide and water.The root place that the discharge positive electrode of Here it is plasma reactor selects fine wire easily to be blown.The positive electrode of prior art applying plasma reactor select fine wire easily to be blown basic reason--Multipactor is not found, also indefinite to its reason physically, thereby also just can not find the technical scheme that solve to stop Multipactor." also being provided with some the prevention micro discharge conductor rails of being made by aluminium bar or stainless steel strip in the plasma reactor; the two ends of described positive electrode are to be separately fixed to stop on the micro discharge conductor rail on the opposite position " of the present invention makes according to " Multipactor " in this plasma reactor.
This shows, the present invention is non-obvious for the person of ordinary skill in the field, and can produce unexpected technique effect.
Description of drawings:
Fig. 1 is plasma air disinfection purification air-conditioning machine cross-sectional view of the present invention;
Fig. 2 is the three-dimensional structure diagram of plasma reactor semi-section of the present invention;
Fig. 3 is prevention micro discharge track structures schematic diagram of the present invention;
Fig. 4 is the three-dimensional structure diagram of another embodiment of plasma reactor of the present invention;
Fig. 5 is pulse power electrical schematic diagram of the present invention;
Fig. 6 is pulse booster transformer structural representation of the present invention;
Fig. 7 is pulse booster transformer circuit diagram of the present invention;
Fig. 8 is pulse booster transformer output electrion current waveform figure of the present invention.
The critical piece description of reference numerals:
1-plasma reactor 2-pulse power 3-blower fan
4-controller 5-air inlet 6-air outlet
8-shell 10-air cleaner 12-wind deflector
13-compressor 15-heat exchanger
101-positive electrode 102-negative electrode 103-stops the micro discharge conductor rail
104-positive electrode metallic support 105-insulation attachment 106-insulation attachment gim peg
107-conductor rail retainer plate 108-shell of reactor 109-protuberance
110-stainless steel connection box 111-negative electrode fixing pin 212-multiple-grooved insulated coil skeleton
214-primary coil 215-secondary coil 216-pulse booster transformer
217-high pressure fast recovery diode 218-magnetic air gap
The specific embodiment:
With reference to the accompanying drawings embodiments of the invention are described in further detail.
Embodiment 1:
Fig. 1 is plasma air disinfection purification air-conditioning machine cross-sectional view of the present invention; Fig. 2 is the three-dimensional structure diagram of plasma reactor semi-section of the present invention; Fig. 3 is prevention micro discharge track structures schematic diagram of the present invention.
Plasma air disinfection purification air-conditioning machine comprises indoor machine and outdoor host computer, and outdoor host computer is equipped with compressor and radiator fan, and indoor machine and outdoor host computer are tightly connected with copper pipe, is provided with the heat catalysis thing in the copper pipe.Be provided with plasma reactor 1, the pulse power 2, blower fan 3, controller 4, air inlet 5, air outlet 6, air cleaner 10, wind deflector 12, heat exchanger 15 in the indoor machine, be installed in the shell 8.Plasma reactor 1 is located at the air outlet of blower fan 3, and blower fan 3 is installed on the wind deflector 12, and the high-voltage output end of the pulse power 2 and plasma reactor 1 are electrically connected.The output of controller 4 is electrically connected with the power input of the pulse power 2 and blower fan 3 respectively, and plasma reactor 1 is arranged in the air channel with heat exchanger 15.Be provided with positive electrode 101 and negative electrode 102 in the described plasma reactor 1, positive electrode 101 is to be located in the same plane by some sludge proof metal tapes to make an assembly by equidistant being arranged in parallel, and amounts to n group (n be 50 with interior integer).Negative electrode 102 is that aluminium sheet or corrosion resistant plate are made, and amounts to the n+1 piece, and positive electrode 101 is arranged on adjacent two negative electrode 102 middle parts.Also be provided with some the prevention micro discharge conductor rails 103 of being made by aluminium bar or stainless steel strip in the plasma reactor, the two ends of positive electrode 101 metal tapes are separately fixed at and stop on the micro discharge conductor rail on the opposite position.Stop the two ends of micro discharge conductor rail 103 that an insulation attachment 105 respectively is set, and be fixed in the corresponding installing hole of shell of reactor 108; Some stop micro discharge conductor rail 103 usefulness resistance to oxidation wires to make electric connection.The air inlet of plasma reactor can add and imitate air cleaner in one, to alleviate the particle adsorbance of plasma reactor.
The corona discharge electric field of the positive electrode 101 of some sludge proof metal tapes is radially being evenly distributed all around along positive electrode 101.Select in force the reactor with the above-mentioned different structure positive electrode of volume, the positive and negative electrode arcing distance is also identical, comprise the conditions such as power configuration, the plasma density that the reactor that sludge proof metal tape positive electrode 101 is made produces is more than two times of reactor of zigzag or tip-like positive electrode, and the ozone index of measuring be zigzag or tip-like the positive electrode reactor 1/4th, meet country about the ozone amount≤0.16mg/m in " IAQ standard "
3Regulation.
Should be noted that shell of reactor 108 of the present invention and negative electrode 102 parallel both sides also hold a concurrent post the negative electrode function, not only delicate structure is simple, saves material; And firmly whole, stable performance.
Embodiment 2:
Prevention micro discharge conductor rail 103 of the present invention is provided with the protuberance 109 of equidistant arrangement, and the two ends of positive electrode 101 are protuberance 109 tops that are separately fixed on the corresponding conductor rail; The protuberance that stops micro discharge conductor rail 103 109 about symmetrical two be made as one group, every protuberance 109 that stops micro discharge conductor rail 103 is established n and is organized, protuberance 109 tops arrange laterally elbow.Positive electrode 101 two ends are provided with stainless steel connection box 110, are washed into square hole in the middle of the stainless steel connection box 110, and described protuberance 109 top elbows are inserted in stainless steel connection box 110 square holes.Negative electrode 102 is respectively established the negative electrode fixing pin 111 of a protrusion by the upper/lower terminal on shell of reactor 108 limits, shell of reactor 108 corresponding position recessing docking are fastening.
The negative electrode aluminium plate thickness is established 1～2.0mm, surface oxidation treatment, and long working life, outward appearance is beautiful.Or make the corrosion resistant plate thickness 0.5～1.5mm of negative electrode 102.Use solder technology in the enforcement, have the alice phenomenon to occur.Negative electrode 102 crimps are twisted the gong nail rigging error can occur, all be not so good as this preferential embodiment on the technique.
Described protuberance 109 top elbows are inserted in stainless steel connection box 110 square holes; Protuberance 109 is stainless steel flexure strips of thickness 0.3～1mm.During assembling, stainless steel connection box 110 and positive electrode 101 two ends are processed according to designed length, again the stainless steel connection box 110 at two ends is inserted in protuberance 109 elbows of corresponding prevention micro discharge conductor rail, easy and simple to handle, the technical indicator high conformity.
Apart from design, distance range is to arrange by 10～30mm between the metal tape of every positive electrode 101 by the same polarity screen effect for every group of the present invention laterally zygomorphic two protuberance 109 elbow.Arcing distance scope of design between positive electrode 101 and the negative electrode 102 is 6～20mm.Distance between positive electrode 101 and the negative electrode 102 is to set according to the electric-field intensity of plus high-pressure power supply.
Embodiment 3:
As shown in Figure 4, described prevention micro discharge conductor rail 103 is provided with the recess of equidistant arrangement, and recess is established the n group, and the two ends of positive electrode 101 are the recesses that are separately fixed at corresponding prevention micro discharge conductor rail 103; The two ends of prevention micro discharge conductor rail 103 are arranged on reactor four positive electrode metallic supports 104 all around with quadrature again and fix, and make electric connection; The outer rim of positive electrode metallic support 104 is provided with several prevention micro discharge conductor rail retainer plates 107 cylindraceous, stops micro discharge conductor rail retainer plate 107 equally spaced adjacent prevention micro discharge conductor rails 103; The upper/lower terminal of every positive electrode metallic support 104 is established insulation attachment 105 and shell 108 corresponding installing holes and is fixed.Establishing 106 insulation of insulation attachment gim peg attachment 105 is fastened on the metallic reactors shell 108 again.
The width of groove and the degree of depth match with the metal tape of positive electrode 101, and advantage is registration, and metal tape is difficult for rocking in air stream, and processing technology is simpler than establishing protuberance 109 on the prevention micro discharge conductor rail 103; Shortcoming is nonelastic, and the working time is of a specified duration, and the metal tape of positive electrode 101 can relax.
The length of conductor rail retainer plate 107 is set by the requirement that reduces the mutual shielding action of same polarity electromagnetic field.Test shows: adjacent two positive electrodes distance too small when 12mm (this example＜), because the mutual shielding action of same polarity electromagnetic field causes corona discharge faint; But distance excessive when 30mm (this example＞) takes up room large, and plasma density is descended.Stoping micro discharge conductor rail 103, positive electrode metallic support 104 and conductor rail retainer plate 107 all is to be made by aluminium or stainless steel material.Conductor rail retainer plate 107 diameter of bores are greater than positive electrode metallic support 104 external diameter 0.1--0.2mm.
The upper/lower terminal of negative electrode 102 is to be fixed on metal shell of reactor 108 inwalls, and makes electric connection.Insulation attachment 105 is made by the plastic-embedded metalwork, and matches with the screw thread at positive electrode metallic support 104 two ends.When insulation attachment 105 was set diameter greater than positive electrode and negative electrode arcing distance, directly the installing hole corresponding with metal shell fixed.When insulation attachment 105 is set diameter less than positive electrode and negative electrode arcing distance, be fastened on the metallic reactors shell 108 by 106 insulation of insulation joint pin gim peg attachment 105.Plasma reactor is whole exquisite, firm.
Embodiment 4:
Described negative electrode 102 surfaces are that the aluminium sheet of oxidation processes is made, and nanoscale TiO is laid on the two sides of negative electrode 102
2The ultraviolet ray excited TiO that utilizes plasma reactor self to send
2, disinfection factor is that low temperature plasma adds and excites TiO
2The free radical that produces.Plasma and free radical are Dual high-efficiency kill bacteria virus, degraded VOC, pollutant; Also save quartz burner and ballast, obtain beyond thought effect.
Described nanoscale TiO
2Be the Detitanium-ore-type catalyst of band-gap energy 3.2eV, the band-gap energy value is high.
Ben is that the aluminium sheet of plasma reactor negative electrode 102 surface oxidation treatment is made, and the upper layer face is easily laid TiO
2The Al that oxidation processes generates
2O
3Aspect is thin, at 18KV
P-PDo not affect corona discharge in the burst pulse high voltage electric field.When plasma reactor was made corona discharge, the blue light that reaction zone sends contained ultraviolet ray, and wavelength is 300--400nm, and light intensity peak is positioned at 357nm.And TiO
2Energy gap be 3.2eV, corresponding ultraviolet wavelength threshold value is 387.5nm.Experiment shows TiO
2When making air disinfection and purification, the catalysis optical source wavelength preferably≤387.5nm, the ultraviolet wavelength peak value that reaction zone sends is positioned at 357nm and meets this condition.So, ultraviolet source just can save, and has avoided the ultraviolet discharge lamp damage, to injury and the large drawback of ultraviolet source power consumption of human body.
Titanium dioxide (TiO
2) the light catalytic purifying technology is high-tech forward position purification techniques.Photocatalyst is to utilize light source to do the photosemiconductor material that catalytic reaction promotes organic substance decomposing, titanium dioxide under the ultraviolet light effect, the energy excitation TiO of light source
2Gas molecule on every side produces active extremely strong free radical.The extremely strong free radical of these oxidabilities almost can decompose most organic matter and part inorganic substances, produces the hole with strong oxidability, and its energy equivalence is in the high temperature of 15000K; Free radical can also destroy the cell membrane of bacterium, and cytoplasm is run off, and then the oxidation nucleus, and killing bacteria.It directly kill bacteria and thoroughly decomposing organic matter be CO
2And H
2The inorganic harmless little molecule such as O reaches sterilization, deodorizing, the effect of air cleaning.At present photocatalyst commonly used is the titanium dioxide of the extremely strong ultramicron of oxidability, and inspection center's testing result shows: photocatalyst to the killing rate of common bacterium more than 99%.
Dioxide photocatalyst titanium (TiO of the present invention
2) the light catalytic purifying technology, be to rely on plasma reactor itself to produce the ultraviolet irradiation catalytic action, avoid ultraviolet discharge lamp easily to damage and the large drawback of power consumption; Kill bacteria and decomposing organic matter effect are doubled.
Embodiment 5:
Fig. 5 is pulse power electrical schematic diagram of the present invention; Fig. 6 is pulse booster transformer structural representation of the present invention; Fig. 7 is pulse booster transformer circuit diagram of the present invention.
Shown in the figure: be provided with a semiconductor switch pipe Q1 and pulse booster transformer 216 in the described pulse power 2, semiconductor switch pipe Q1 of the present invention and pulse booster transformer arrange by the single-ended flyback inverter circuit, the short duration current climbing speed of inversion output is high, the ozone of generation and nitrogen oxide≤0.02mg/M
3
The drain D of semiconductor switch pipe Q1 is connected with the primary coil of pulse booster transformer 216 214 Same Name of Ends a1, the source S of switching tube Q1 is connected with input DC power DC negative pole through current-limiting resistor R1, and it is anodal that primary coil 214 different name end b1 connect input DC power DC; Same Name of Ends a1, the a2 of primary coil 214 and secondary coil 215 and different name end b1, b2 oppositely arrange.Pulse booster transformer 216 is provided with a multiple-grooved insulated coil skeleton 212, and secondary coil 215 is minutes three sections, five sections to seven sections and is wound in the corresponding groove of multiple-grooved insulated coil skeleton 212 and is in series.The upper end of each line bag respectively is provided with a high pressure fast recovery diode 217, and the positive pole of high pressure fast recovery diode 217 is connected on the end of electronegative potential line bag, and the negative pole of high pressure fast recovery diode 217 is connected on the initiating terminal of high potential line bag.The pulse power 2 is connected with plasma reactor positive electrode 101 usefulness high-voltage conducting wires 213.
The present invention is designed to press the setting of single-ended flyback inverter circuit, obtains the high-frequency narrow-pulse drive current, can not occur sparking and so on fault in the plasma reactor work that is capacitive.Should be noted that, the inverse-excitation type inverter also makes the plasma reactor and the mains isolation that are attached thereto except finishing the task of boosting, the directly safety ground of the negative electrode of reactor and shell, and capability of electromagnetic shielding is better.
Obtaining simultaneously beyond thought beneficial effect is: the pulse current of inverse-excitation type inverter output is that Q1 makes the magnetic energy abrupt release that is stored in the pulse booster transformer armature winding when turn-offing, and obtains 18KV
P-P, operating frequency 40KH
Z, pulse width 4 μ S, the burst pulse high-voltage corona discharge electric current of rise time 70nS; When the plasma reactor accidental short circuit again; because the buffer action of inverse-excitation type pulse transformer; be the secondary ability conducting output of impulse generator pulse transformer when closing, thus the semiconductor switch plumber of the pulse power to do be safe, holding circuit only is used as auxiliary.This designed reliability is high, and switching tube can be selected the common power transistor of withstand voltage 600V.
Embodiment 6:
Be provided with magnetic core in the endoporus of described primary coil 214 and secondary coil 215 and make electromagnetic coupled, be provided with magnetic air gap 218 in the magnetic loop of magnetic core; Described magnetic core optimal design is unshakable in one's determination with iron-base ultramicro-crystal, also ferrite core can be set.Ferritic inductance coefficent is low, and coil windings will increase, and loss is certainly also large.
The proof voltage parameter of high pressure fast recovery diode 217 is 12KV at least, and recovery time is less than 80nS.
Embodiment 7:
The G utmost point of described switching tube Q1 is provided with drive circuit IC, is provided with oscillator ZTC, error amplifier WCF and comparator PWM in the drive circuit IC, and drive circuit IC makes a module; Also can select Switching Power Supply control integration circuit U C3842 class to substitute.
Another kind of technical scheme is to select Switching Power Supply control integration IC circuit 1 to comprise that switching tube is to share a monolithic integrated optical circuit TOP225 or TOP224 makes, or the better monolithic five terminal of performance Switching Power Supply IC1 comprises that MC33374 makes.
The pulse power 2 operation principles of the present invention:
Civil power is by the rectification circuit bridge rectifier, and filter condenser filtering obtains dc source DC.When switching tube Q1 is encouraged by pwm pulse and during conducting, dc source DC is applied to the two ends of pulse booster transformer 216 primary coils, this moment, primary coil 214 was equivalent to a pure inductance, flow through linear rising of electric current of primary coil 214, power supply energy is stored in the inductance of primary coil 214 with the magnetic energy form; Pulse booster transformer 216 secondary high pressure fast recovery diodes 217 are because oppositely ending.When switching tube Q1 ends, because inductive current can not suddenly change, 214 both end voltage polarity moments of primary coil are reverse, polarity of voltage on the secondary coil 215 is put upside down and is made high pressure fast recovery diode 217 forward conductions, the energy abrupt release that primary coil 214 stores, be sent to secondary coil 215 and boost, produce the high voltage narrow pulse electric current, offer external plasma reactor and make corona discharge.
Error amplifier WCF and comparator PWM that the operating current sampling of plasma reactor of flowing through is delivered in the drive circuit IC process.Abnormality signal code during damaged, aging when plasma reactor is worked, short circuit is through processing, and the output pulse width of comparator PWM is zero, and switching tube Q1 is closed, and realizes automatically protection.Equally, when the operating current of plasma reactor changes because of load, the output pulse width of comparator PWM also changes, and gauge tap pipe Q1 ON time realizes automatically adjusting the pulse power 2 power outputs, makes plasma reactor make stable corona discharge.
Fig. 8 is pulse booster transformer 216 output electrion current waveform figures of the present invention.This discharge current waveform is that the sampling resistor at the external plasma reactor earth terminal of the output of pulse booster transformer 216 records.Digital oscilloscope shows and shows: pulse duty factor is 16%, and pulse width is 3uS, and be 70nS pulse rise time.Pulse transformer output electrion current waveform high conformity of the present invention, the corona discharge of plasma reactor is stable.
Embodiment 8:
The described positive electrode 101 of making is to be made by the sludge proof high-resistance electrothermic alloy, also can be that the Aludirome material is made; The trade mark of the nickel chromium triangle metal tape of positive electrode 101 is the high-resistance electrothermic alloy of Cr20Ni80, and the trade mark that also can be the ferrum-chromium-aluminum material is the high-resistance electrothermic alloy of 0Cr27A17Mo2; The metal tape width is 1--2mm, and thickness is 0.05mm--0.20mm.
The present invention aims at the design of air disinfection and purification air conditioner, and the present invention can be used for comprising the Air Conditioning sterilizing and purifying in the places such as hospital, toilet, office building, market, hotel, cinema, airport, subway and family.
The above only is that the embodiment with reference to accompanying drawing has done to further specify to the present invention, is not limitation of the invention.Of the present invention about metal tape positive electrode corona discharge, stop micro discharge conductor rail, the ultraviolet ray excited TiO of plasma reactor self
2Deng the technical concept scope in, those skilled in the art can make the variety of way simple deformation or be equal to alternatively by the content of above-mentioned announcement, all belong in the scope of technical solution of the present invention.
Claims (10)
1. plasma air disinfection purification air-conditioning machine, comprise indoor machine and outdoor host computer, be provided with plasma reactor (1), the pulse power (2), blower fan (3), controller (4), air inlet (5), air outlet (6), air cleaner (10), wind deflector (12), heat exchanger (15) in the indoor machine, be installed in the shell (8); Plasma reactor (1) is located at the air outlet of blower fan (3), blower fan (3) is installed on the wind deflector (12), the high-voltage output end of the pulse power (2) and plasma reactor (1) are electrically connected, the output of controller (4) is electrically connected with the power input of the pulse power (2) and blower fan (3) respectively, and plasma reactor (1) is arranged in the air channel with heat exchanger (15);
It is characterized in that being provided with in the described plasma reactor (1) positive electrode (101) and negative electrode (102), positive electrode (101) is to be located in the same plane by some sludge proof metal tapes to make an assembly by equidistant being arranged in parallel, amount to the n group, n is 50 with interior positive integer; Described negative electrode (102) is that aluminium sheet or corrosion resistant plate are made, and amounts to the n+1 piece, and positive electrode (101) is arranged on adjacent two negative electrodes (102) middle part; Also be provided with some the prevention micro discharge conductor rails (103) of being made by aluminium bar or stainless steel strip in the plasma reactor, the two ends of described positive electrode (101) metal tape are separately fixed at and stop on the micro discharge conductor rail on the opposite position; Stop the two ends of micro discharge conductor rail (103) that an insulation attachment (105) respectively is set, and be fixed in the corresponding installing hole of shell of reactor (108); Some stop micro discharge conductor rail (103) to make electric connection with the resistance to oxidation wire.
2. plasma air disinfection purification air-conditioning machine according to claim 1, it is characterized in that described prevention micro discharge conductor rail (103) is provided with the protuberance (109) of equidistant arrangement, the two ends of positive electrode (101) are protuberance (109) tops that is separately fixed on the corresponding conductor rail; The protuberance (109) of prevention micro discharge conductor rail (103) up and down two of symmetries is made as one group, and every stops the protuberance (109) of micro discharge conductor rail (103) to establish the n group, and protuberance (109) top arranges laterally elbow; Positive electrode (101) two ends are provided with stainless steel connection box (110), are washed into square hole in the middle of the stainless steel connection box (110), and described protuberance (109) top elbow is inserted in stainless steel connection box (110) square hole; Described negative electrode (102) is respectively established the negative electrode fixing pin (111) of a protrusion by the upper/lower terminal on shell of reactor (108) limit, recessing docking in shell of reactor (108) corresponding position is fastening.
3. plasma air disinfection purification air-conditioning machine according to claim 1, it is characterized in that described prevention micro discharge conductor rail (103) is provided with the recess of equidistant arrangement, recess is established the n group, and the two ends of positive electrode (101) metal tape are the recesses that is separately fixed at corresponding prevention micro discharge conductor rail (103); The two ends of prevention micro discharge conductor rail (103) are arranged on reactor four positive electrode metallic supports (104) all around with quadrature again and fix, and make electric connection; The outer rim of positive electrode metallic support (104) is provided with several prevention micro discharge conductor rail retainer plates cylindraceous (107), stops the equally spaced adjacent prevention micro discharge conductor rail (103) of micro discharge conductor rail retainer plate (107); The upper/lower terminal of every positive electrode metallic support (104) is established insulation attachment (a 105) installing hole corresponding with shell of reactor (108) and is fixed, and establishes insulation attachment gim peg (106) again insulation attachment (105) is fastened on the metallic reactors shell (108).
4. plasma air disinfection purification air-conditioning machine according to claim 1 is characterized in that described negative electrode (102) surface is that the aluminium sheet of oxidation processes is made, and nanoscale TiO is laid on the two sides of negative electrode (102)
2
5. plasma air disinfection purification air-conditioning machine according to claim 1, it is characterized in that being provided with a semiconductor switch pipe Q1 and pulse booster transformer (216) in the described pulse power (2), semiconductor switch pipe Q1 and pulse booster transformer (216) arrange by the single-ended flyback inverter circuit; The drain D of described semiconductor switch pipe Q1 is connected with primary coil (214) the Same Name of Ends a1 of pulse booster transformer (216), the source S of switching tube Q1 is connected with input DC power DC negative pole through current-limiting resistor R1, and it is anodal that primary coil (214) different name end b1 connects input DC power DC; Same Name of Ends a1, the a2 of primary coil (214) and secondary coil (215) and different name end b1, b2 oppositely arrange.
6. plasma air disinfection purification air-conditioning machine according to claim 1, it is characterized in that described pulse booster transformer (216) is provided with a multiple-grooved insulated coil skeleton (212), secondary coil (215) is minutes three sections, five sections to seven sections and is wound in the corresponding groove of multiple-grooved insulated coil skeleton (212) and is in series; The upper end of each line bag respectively is provided with a high pressure fast recovery diode (217), the positive pole of high pressure fast recovery diode (217) is connected on the end of electronegative potential line bag, and the negative pole of high pressure fast recovery diode (217) is connected on the initiating terminal of high potential line bag; Be provided with magnetic core in the endoporus of described primary coil (214) and secondary coil (215) and make electromagnetic coupled, be provided with magnetic air gap (218) in the magnetic loop of magnetic core.
7. plasma air disinfection purification air-conditioning machine according to claim 5, the G utmost point that it is characterized in that described switching tube Q1 is provided with drive circuit IC, be provided with oscillator ZTC, error amplifier WCF and comparator PWM in the drive circuit IC, drive circuit IC makes a module; Also can select Switching Power Supply control integration circuit U C3842 class to substitute.
8. according to claim 1 or 3 described plasma air disinfection purification air-conditioning machines, it is characterized in that described positive electrode (101) is to be made by the sludge proof high-resistance electrothermic alloy, positive electrode (101) metal tape width is 1---2mm, thickness are 0.05mm---0.20mm.
9. plasma air disinfection purification air-conditioning machine according to claim 6 is characterized in that described magnetic core optimal design is unshakable in one's determination with iron-base ultramicro-crystal.
10. plasma air disinfection purification air-conditioning machine according to claim 6 is characterized in that described magnetic core also can arrange ferrite core.
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| WO2014053100A1 (en) * | 2012-10-03 | 2014-04-10 | Sui Chun Law | System and method of air purification |
| CN106582260B (en) * | 2016-11-02 | 2023-03-17 | 海南大学 | Device and method for purifying hydrophobic organic waste gas |
| CN108597559B (en) * | 2017-12-29 | 2021-02-09 | 青岛海信医疗设备股份有限公司 | Heat dissipation method and device for medical equipment |
| CN111174347A (en) * | 2020-01-09 | 2020-05-19 | 东华大学 | Plasma indoor air purifier |
| CN111649392A (en) * | 2020-06-02 | 2020-09-11 | 刘东明 | Plasma generator air conditioner |
| CN112460689A (en) * | 2020-11-30 | 2021-03-09 | 珠海格力电器股份有限公司 | Air conditioner disinfection system and method |
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| CN2575819Y (en) * | 2002-09-27 | 2003-09-24 | 钟玉麟 | Hand operating mechanism for switch cabinet |
| JP2004278965A (en) * | 2003-03-18 | 2004-10-07 | Mitsubishi Electric Corp | Air conditioner |
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| CN101943441A (en) | 2011-01-12 |
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