CN201715634U - Cleaning room provided with athermal plasma air-sterilization purifier - Google Patents
Cleaning room provided with athermal plasma air-sterilization purifier Download PDFInfo
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- CN201715634U CN201715634U CN2009202159765U CN200920215976U CN201715634U CN 201715634 U CN201715634 U CN 201715634U CN 2009202159765 U CN2009202159765 U CN 2009202159765U CN 200920215976 U CN200920215976 U CN 200920215976U CN 201715634 U CN201715634 U CN 201715634U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The utility model pertains to the technical field of cleaning rooms, and particularly relates to a cleaning room provided with an athermal plasma air-sterilization purifier. The cleaning room comprises an air purifying unit, a reactor power supply, a fan, a cleaning chamber, a fresh air system, a controller, an air return trench, an air filter, a plenum box, an air return pipe and a grating floor, wherein the air purifying unit is arranged in the plenum box at the upper part of the cleaning chamber, thus forming an air-tight environment; a plasma reactor is adopted as the air purifying unit and is internally provided with a positive electrode prepared by arranging a plurality of nickel-chromium metal wires or metal straps in parallel at equal intervals in one plane, and two ends of the air purifying unit are fixed in a groove or a concave part corresponding to a conductive rail which avoids micro discharge; and a single-ended flyback inverter is arranged as a switch pipe in the reactor power supply. The cleaning room has comprehensive air purifying and sterilizing effect, high efficiency, low energy loss, low noise, simple structure and long service life, saves maintenance cost, and is used as an industrial cleaning room or a biological cleaning room.
Description
Technical field:
The utility model belongs to technical field of air sterilization and purification, is specifically related to be equipped with the toilet of non-thermal plasma air disinfection purifier.
Background technology:
Toilet (Clean Room) reduces to the micro dust particle in the room air, toxic and harmful, bacterial virus pollutant below the set quota, and with indoor humiture, Electrostatic Control, electromagnetic interference, noise and the illumination room by the demand design.China up-to-date issue the in November calendar year 2001 " Code for design of industrial clean rooms " (GB50073-2001), redetermination five kinds of toilets of 1 grade of Class 5～Class.Existing toilet mainly comprises a clean room, blower fan filtering unit and combined type purification air-conditioning device.During work,,, discharge by return air channel at last and enter atmosphere, thereby form an air circulation through entering clean room after the filtration of blower fan filtering unit by the negative pressure space that the air after the temperature adjustment of combined type purification air-conditioning device enters blower fan filtering unit top.
As the control object, major control does not have the pollution of life particulate to target to industrial clean rooms with abiotic particulate, the inner general malleation that keeps.It is applicable to departments such as accurate industry, electronics industry, aerospace industry, atomic energy industry, printing industry, photographic industry.
Bio clean room serves as the control object with lived particulate, and major control has the pollution of life particulate.Internal material will stand various bactericidal agents and corrode the inner general malleation that keeps simultaneously.Can be used for pharmaceuticals industry, food industry, medical facilities, Experimental Establishment etc.
It is several that the air disinfection and purification unit of common toilets such as semiconductor factory, pharmaceutical factory, food factory and hospital operating room mainly contains filtration absorbent-type, electronics electrostatic adsorption type, ozonization type, disinfection by ultraviolet light type, light catalytic purifying etc. on the market.
Filtering absorbent-type is the air disinfection and purification unit that present thumping majority toilet selects for use, common have high efficiency particle air filter, a FFU, adopt the porous filtering material, as nonwoven, filter paper, fiber, foam cotton and HEPA high-density air filter material etc., utilize the Van der Waals force that exists between body surface, absorption realizes purifying purpose with suspended particulate contaminants, pernicious gas in the air stream.Its shortcoming is can only the filtering dust, can not thorough disinfection; It is also big certainly to drive fan noise.It only is applicable to industrial clean rooms.Problem is that the FFU filtration resistance increases with the accumulation of dust granules thing, and dust containing capacity reduces, and purification efficiency descends thereupon.If untimely cleaning or replacing can cause secondary pollution.The energy consumption of FFU air filter unit is big, and the maintenance cost costliness is assert it is undisputable fact by the expert.
The electronics electrostatic adsorption type, is separated particle by the effect of Coulomb force by the static discharge of electrode from air-flow, reach the purpose that purifies air.It is effective that it removes dust, but pernicious gas weak effects such as sterilization, removal formaldehyde.
The ozonization type is to utilize the unstable characteristic of ozone and strong oxidation sterilizing.Ozone is a kind of strong oxidizer, should not place inflammable, that explosion hazard gases directly contacts arranged, can not control of dust.In a single day ozone leak, and the human respiratory tract is damaged.
Microorganisms such as the ultraviolet kill bacteria of disinfection by ultraviolet light type employing wavelength 253.7nm, virus.It is invalid that it removes dust; Ultraviolet ray belongs to black light, leaks easily, can damage human eye, skin.
Light catalytic purifying is photochemical catalyst TiO
2Under the irradiation of the ultraviolet light of 387.5nm wavelength, make air molecule produce hole with strong oxidability, i.e. surface hydroxylation, its energy is equivalent to the high temperature of 15000K, direct kill bacteria, decomposing organic matter is CO
2And H
2Nontoxic inorganic matter such as O.It is invalid that it removes dust, is not suitable for industrial clean rooms; Be that light-catalyzed reaction is the restriction that is subjected to intensity of illumination, air mass flow again, TiO
2The deactivation phenomenom of self is the basic reason that light catalytic purifying efficient reduces; And the same injury problem that exists human body skin, eyes is leaked in the ultraviolet ray of illumination easily.
For example: application number is 200510094009.4, the applying date: 2005.8.22, the denomination of invention: " air conditioning of toilet, cleaning system " disclosed technical scheme is: the air conditioning of toilet, cleaning system, between toilet and the following interlayer below it, utilize movable floor with holes to separate, the top of toilet is the plenum chamber layer, arrange high efficiency particulate air filter in toilet and plenum chamber interlayer, the both sides of toilet are the return air passageway, new wind is sent into the return air passageway by the fresh air conditioner unit and is mixed the laggard plenum chamber layer of going into return air, under the effect of the self-loopa blower fan in the plenum chamber layer, enter in the toilet through high efficiency particulate air filter, in the toilet, form vertical laminar flow from top to bottom, the hole of passing again on the movable floor enters down in the interlayer, and then enter in the return air passageway of both sides as return air from following interlayer, with enter again in the plenum chamber layer after the new wind that newly enters mixes, move in circles, it is characterized in that: some self-loopa blower fans are installed in the plenum chamber layer on the toilet, every self-loopa blower fan is provided with the medium air filtration section successively, surface cooling section, fan section and wind outlet section, wherein, the medium air filtration section is used for that circulated air is carried out preliminary purification and handles, surface cooling section is used to regulate the temperature of circulated air, fan section is used for circulated air is carried out supercharging, wind outlet section utilizes the wind after pipeline will be handled to distribute to a plurality of efficient air outlets, then, enter the toilet through high efficiency particulate air filter.
Be not difficult to find out, the air channel of every self-loopa blower fan medium air filtration section, the surface cooling section by initial resistance 80Pa under the nominal air delivery successively in the foregoing invention, then, the high efficiency particulate air filter of initial resistance 200--280Pa enters the toilet under the process nominal air delivery, and its total wind resistance is big to be to well imagine.
The producer that has also designed plasma air disinfection purifier, how because of the reactor design is unreasonable, though it is high to constitute the anodal plasma density of selecting for use that fine wire produces of reactor discharge, but was blown easily.For this reason, the discharge positive electrode of prior art is used stainless steel again instead and is made zigzag or prong shape structure.Though zigzag or prong shape are not easy to be blown, the point discharge state that they are in, the discharge streamer of formation can see having between positive electrode and the negative electrode that a fine rule purplish blue light--this is the aerial discharge non-uniform phenomenon in the darkroom.Near plasma density height purplish blue light, airborne oxygen and nitrogen are activated easily, generate 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, the discharge tip of zigzag or prong shape is because of the splash effect rust.Because the radius of curvature of positive electrode is big more, discharge inception voltage is high more, 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; Though also in work, perform practically no function on the reactor surface.This uses in hospital operating room, severe ward and will cause the failure of operative treatment because of the defective bacteriovirus infection accident that takes place of sterilizing.
For example the Chinese invention patent application number is 200710038821.4, and denomination of invention " assembly modular type systyle electrostatic field device " is exactly an obvious example.This specification homepage just proposes: " the fine rule defective of broken string has easily greatly influenced the reliability of installing." 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 a 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.This invention zigzag discharge electrode and dust collector pole are made static field device can only be used for the air cleaning of electronics electrostatic adsorption type, and the Disinfection Effect difference is self-evident.
Another reason be exactly the power supply that cooperates plasma reactor at present be not very appropriate for the plasma reactor coupling that is capacitive load.Test shows: under atmospheric pressure want to make reactor to make corona discharge generation high concentration plasma and should possess two conditions to improve its sterilization and purification efficient.At first be that plus high-voltage field only applies energy to airborne electronics, heat, quicken, obtain kinetic energy, make the very little electron temperature of quality up to tens thousand of degree, and other particle acquisition is seldom low-yield in moment (nS level).Another condition is: extra electric field applies time (uS level) of energy to electronics will be much smaller than the time that does not apply energy to electronics, and the energy that gas is obtained can in time conduct, and prevents to carry out the transition to hot plasma and lower efficiency.This just requires plasma electrical source not only to provide outside the dc high-voltage of 10--20KV, also high dutycycle must be arranged, and it is the high-frequency narrow-pulse current of 120nS at least that climbing speed reaches.Consider that simultaneously plasma reactor is a capacitive load, the positive and negative electrode long-term work is again unavoidably by accidental short circuit, and all these securities for plasma electrical source, the harshness of stability requirement are well imagined.In view of turn-on and turn-off time of present semiconductor power switch device is the uS level, adopt conventional method for designing to be difficult to satisfy above-mentioned two conditions.The high pressure resistant high-power switch device of nS level costs an arm and a leg, and working life is short, and design is unpractical on the product for civilian use.
Summary of the invention:
The purpose of this utility model be provide in order to solve above-mentioned the deficiencies in the prior art that a kind of windage is little, energy consumption is low, noise is little, maintenance cost is economized, energy-conservation, the effective toilet that non-thermal plasma air disinfection purifier is housed that can regulate temperature, humidity again of air disinfection and purification.
The technical solution of the utility model is:
The toilet of non-thermal plasma air disinfection purifier is housed, comprise air cleaning member, the reactor power supply, blower fan, the toilet, controller, the return air trench, air cleaner, plenum chamber, return air bend pipe and grating panel, air cleaning member is contained in the plenum chamber on top, toilet, form airtight environment, it is characterized in that described air cleaning member is a plasma reactor, be provided with in the plasma reactor some nickel chromium triangle wires or metal tape in same plane by the equidistant positive electrode that is arranged in parallel and makes, positive electrode places adjacent two negative electrode middle parts; The two ends of positive electrode are to be fixed on to stop on the micro discharge conductor rail in corresponding groove or the protuberance, and described prevention micro discharge conductor rail is to be made by aluminium bar or stainless steel strip; 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 upper/lower terminal of every positive electrode metallic support is established an insulation attachment and the corresponding installing hole of shell of reactor is fixed; Be provided with in the described reactor power supply EMC wave filter, rectification circuit, filter circuit, impulse generator, pulse transformer successively preface be electrically connected the external plasma reactor of the output of pulse transformer; Described pulse transformer output cold end is provided with current detection circuit, detected pulse transformer output current signal is sent into the impulse generator input, the oscillator that is provided with in the impulse generator, error amplifier, PWM comparator and switching tube; The elementary winding b1 of described pulse transformer termination rectification circuit positive output end, the a1 of pulse transformer, a2 are ends of the same name, and b1, b2 are the different name ends, and the switching tube in pulse transformer and the impulse generator is the setting of single-ended flyback inverter.
Preferentially described plenum chamber air inlet is provided with breeze fan, and the air inlet of breeze fan is provided with roughing efficiency air filter and middle effect air cleaner; The breeze fan front end is provided with VMC, VMC from air inlet be provided with successively roughing efficiency air filter, effect air cleaner, new wind blower fan, surface cooler, heater, humidifier, VMC air outlet and breeze fan pipeline air tight communication.
Preferentially described pulse transformer is provided with a multiple-grooved insulated coil skeleton, and secondary coil is that three sections to five sections of branches are wound in the corresponding groove of multiple-grooved insulated coil skeleton and are in series; 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 iron-base ultramicro-crystal iron core also can be provided with ferrite core.
Also be provided with damping layer and homogenizing plate between preferentially described toilet and the plenum chamber, make the air stream that flows to the toilet form vertical way flow air curtain; Be provided with grating panel between toilet and the return air trench, be equipped with the return air hole that is evenly distributed on the grating panel; The both sides, toilet are provided with the corridor.
Preferentially described return air trench air outlet is equipped with breeze fan, and the breeze fan air outlet upwards is provided with backwind tube and is communicated with VMC, is provided with the return air air-lock in the backwind tube; The breeze fan air outlet is to the outdoor exhaust duct that is provided with, and exhaust outlet is logical outdoor, is provided with the air draft air-lock in the exhaust duct.
Preferentially described EMC wave filter is provided with differential mode inductance device LI and common-mode inductor L2 series connection, EMC filter input end shnt capacitor C1, EMC filter output shnt capacitor C2.
Preferentially described plasma reactor is to select for use more than two according to the air containment in the toilet to install side by side; The plasma reactor shell be with FFU similar can directly replace renewal.
Be provided with the woven wire that is communicated with earth connection in the preferentially described toilet surroundings wall, toilet's 6 corridor direction metopes are provided with the electro-conductive glass window.
The utility model compared with prior art has following beneficial effect:
The air cleaning member that is equipped with in the toilet of non-thermal plasma air disinfection purifier is a plasma reactor, be provided with the positive electrode that some nickel chromium triangle wires or metal tape are made in the plasma reactor, the two ends of positive electrode are to be fixed on to stop on the micro discharge conductor rail in corresponding groove or the protuberance, and make electric connection.Compared with prior art, its micro discharge effect can be ignored substantially, has overcome " fine rule is the defective of broken string easily ".Like this, make every nickel filament of positive electrode or metal tape in the direct current highfield, make stable corona discharge, obtain the high concentration plasma.Corrected and would rather sacrifice the sterilizing and purifying effect, abandon the positive electrode of fine wire and select the zigzag discharge electrode for use or the tip-like ionization utmost point with the reliability that exchanges disinfection purifier for and the technology prejudice of working life.
Pulse transformer output cold end in the reactor power supply is provided with current detection circuit, detected pulse transformer output current signal is sent into the impulse generator input, the oscillator that is provided with in the impulse generator, error amplifier, PWM comparator and switching tube; The operating current of plasma reactor is along with the load size variation, and by-pass cock pipe output pulse width is realized control power output automatically; Switching tube in pulse transformer and the impulse generator is the setting of single-ended flyback inverter.Obtaining beyond thought beneficial effect is: the pulse current of inverse-excitation type inverter output is that impulse generator makes the magnetic energy abrupt release that is stored in the elementary winding of pulse transformer when turn-offing, and the present invention obtains the high-voltage corona discharge electric current of 80nS pulse rise time; Be positive and negative electrode accidental short circuit again when plasma reactor, because the buffer action of inverse-excitation type inverter, be the secondary ability conducting output of impulse generator pulse transformer when closing, thereby the switching tube work of the pulse power is safe, the super-high-speed high-power switching device that switching tube can be selected for use common high anti-pressure power transistor to substitute and cost an arm and a leg, working life is short.
Key is that the reactor power supply is for the plasma reactor matching problem that is capacitive load.Test shows: under atmospheric pressure want to make reactor to make corona discharge generation high concentration plasma and should possess two conditions to improve its sterilization and purification efficient.At first be that plus high-voltage field only applies energy to airborne electronics, heat, quicken, obtain kinetic energy, make the very little electron temperature of quality up to more than 10,000 degree, and other particle acquisition is extremely low-yield in moment (nS level).Another condition is: extra electric field applies time (uS level) of energy to electronics will be much smaller than the time that does not apply energy to electronics, and the energy that gas is obtained can in time conduct, and prevents to carry out the transition to hot plasma and lower efficiency.This just requires plasma electrical source not only to provide outside the dc high-voltage of 10--20KV, also high dutycycle must be arranged, and the rise time is that the high-frequency narrow-pulse current of 80nS is best technology.The magnetic energy abrupt release effect of single-ended flyback inverter has satisfied the reactor power supply for the plasma reactor matching problem that is capacitive load.
Also have following three advantages during the utility model work:
At first be that the generation plasma is even, density is high because the corona discharge of reactor is around thread or banded positive electrode; Avoided the tip of the zigzag discharge electrode or the tip-like ionization utmost point little, discharge concentrates on most advanced and sophisticated place and forms the streamer wire, and guiding discharge is inhomogeneous, the inefficient drawback of sterilizing and purifying.The burst pulse voltage magnitude design of the pulse power is higher more than 20% than electronics electrostatic adsorption type, also is not easy to carry out the transition to spark discharge; Available active particle also will exceed several magnitude than direct-current discharge method.
Next is in the fast rise electric field of burst pulse forward position, the corona zone is big in the non-thermal plasma reactor, the electron density of discharge space also increases, and the space charge effect in reactor distributes and is tending towards evenly, thereby active space is also big than AC-DC overlaying power electric discharge.
The utlity model has the broad-spectrum sterilization effect: to staphylococcus aureus, Escherichia coli, hay bacillus, read viruses such as strain bacterium, mould and mycoplasma, hepatitis B, influenza in vain killing rate is efficiently all arranged.Have dedusting simultaneously, the raw meat of dehematizing, the function of removing organic exhaust gas such as peculiar smell, degradation of formaldehyde, smog and TVOC.Be that positive electrode places adjacent two negative electrode middle parts again, under the work of Coulomb force, little pellet to the 0.01um particle diameter is adsorbed removal, and the sterilizing and purifying effect is comprehensive.
Through surveying: at 20m
2The staphylococcus albus of artificial spray-painting in the sealing space air, the average kill ratio behind the utility model work 30min is 99.98%, the killing rate of work 60min can be up to 100%.Degradation Formaldehyde rate 98.7%, ozone amount≤0.05mg/m is retained in suspended particles number≤350/L (Φ 〉=0.5 μ m) in the air
3
Energy-conservation is conspicuous: the utility model is at 100m
3The indoor reactor consumed power that reaches the II of hospital class environment disinfected standard is 7--8W, and windage is less than 10Pa.Reach the ultraviolet ray of effect same or the air disinfection purifier energy consumption of ozone and be at least 160W; And the windage of high efficiency particle air filter, FFU is big, and energy consumption is bigger.The regular cleaning maintenance of air cleaning member of the present utility model can use, repeatedly till positive electrode exhausts.The utility model scope of application is industrial clean rooms and bio clean room.
Generally speaking, the novel air purifying and sterilizing device of the utility model design replaces high efficiency particle air filter, FFU, and windage reduces half, energy consumption is low, noise is little; Produce the plasma density height, to purify Disinfection Effect comprehensive.Project organization of the present invention is simple, maintenance cost province, with low cost, energy-conservation.
Description of drawings:
Fig. 1 is toilet's structural representation that non-thermal plasma air disinfection purifier is housed;
Fig. 2 is the structural representation that the another kind of embodiment of the utility model is provided with the VMC toilet;
Fig. 3 is a plasma reactor three-dimensional structure diagram of the present utility model;
Fig. 4 is a reactor power supply electrical schematic diagram of the present utility model;
Fig. 5 is a pulse transformer structural representation of the present utility model;
Fig. 6 is a pulse transformer circuit diagram of the present utility model;
Fig. 7 is the current waveform figure of reactor power supply output of the present utility model;
Fig. 8 is electromagnetic compatibility of the present utility model, Conduction Interference test report.
The critical piece description of reference numerals:
1-air cleaning member 2-reactor power supply 3-blower fan
4-roughing efficiency air filter 5-VMC 6-toilet
Imitate air cleaner among the 7-controller 8-return air trench 9-
11-plenum chamber 12-return air bend pipe 13-corridor
14-grating panel 15-return air hole 16-exhaust duct
17-backwind tube 18-return air air-lock 19-air draft air-lock
20-exhaust outlet 21-damping layer 22-homogenizing plate
23-surface cooler 24-heater 25-humidifier
50-electro-conductive glass window 101-positive electrode 102-negative electrode
103-stops micro discharge conductor rail 104-positive electrode metallic support 105-insulation attachment
108-shell of reactor 201-EMC wave filter 202-rectification circuit
203-filter circuit 204-impulse generator 205-pulse transformer
206-current detection circuit 212-multiple-grooved insulated coil skeleton 214-primary coil
215-secondary coil 216-magnetic core 218-magnetic air gap
The specific embodiment:
With reference to the accompanying drawings embodiment of the present utility model is described in further detail.
Embodiment 1:
With reference to Fig. 1, toilet's structural representation of non-thermal plasma air disinfection purifier is housed; Fig. 3 is a plasma reactor three-dimensional structure diagram of the present utility model.
Among Fig. 1, the toilet of non-thermal plasma air disinfection purifier is housed, comprise air cleaning member 1, reactor power supply 2, blower fan 3, toilet 6, controller 7, return air trench 8, air cleaner 9, plenum chamber 11, return air bend pipe 12 and grating panel 14, air cleaning member 1 and reactor power supply 2 are contained in the plenum chamber 11 on 6 tops, toilet, form airtight environment.Be provided with surface cooler 23 and heater 24 between blower fan 3 and the return air bend pipe 12.Return air bend pipe 12 inwalls are provided with sound-absorbing material, and the interior wall of toilet 6 also is provided with electro-conductive glass window 50.Controller 7 is to be contained on the wall of toilet 6, and the single-chip microcomputer, the panel that are provided with control program in the controller 7 are provided with temperature sensor, time, temperature digital display and operating key, are used to set sterilizing and purifying time and indoor temperature.The output of controller 7 is connected with reactor power supply 2, surface cooler 23 and the power control system of heater 24.
The positive electrode 101 of the utility model setting is that some nickel chromium triangle wires or nickel chromium triangle metal tape are located in the same plane, amounts to n group (n is 40 following integers); Negative electrode 102 is that metallic plate is the n+1 piece; Shell of reactor 108 left and right sides metallic plates are two pole plates of double as negative electrode 102 also.Negative electrode 102 is that aluminium sheet or corrosion resistant plate are made, and Thickness Design is 0.8--1.5mm.Positive electrode 101 is selected the nickel chromium triangle wire or the nickel chromium triangle metal tape of high-resistance electrothermic alloy for use; Nickel chromium triangle wire diameter optimum value is 0.15 to 0.20mm, or nickel chromium triangle metal tape optimum width is 2mm, and thickness is 0.08--0.10mm.Positive electrode 101 and negative electrode 102 be arranged in parallel by airflow direction, and windage is little, sterilization is even.The two ends of positive electrode 101 are to be fixed on to stop on the micro discharge conductor rail 103 in the corresponding groove, the two ends of another kind of technical scheme positive electrode 101 are to be fixed on to stop in the protuberance corresponding on the micro discharge conductor rail 103, and protuberance is to be designed to tip nail or elastic stainless steel sheet.If protruding tip instead of grooves, for fixing nickel chromium triangle wire still can, fixedly crooked drawback can appear in the nickel chromium triangle metal tape.The inventor designed with spring, stainless steel substrates and substituted groove position fixedly nickel chromium triangle wire, the nickel chromium triangle metal tape that stops correspondence position on the micro discharge conductor rail 103, above-mentioned defective all occurred; Especially severe be to open when blower fan because spring, stainless steel substrates exist flexible unstability to cause nickel chromium triangle wire, metal tape to rock more very, positive electrode 101 work sparkings influences the plasma reactor discharge stability and can hardly be avoided when serious.Stop the two ends of micro discharge conductor rail 103 to be provided with Φ 4.1mm circular hole, be arranged on reactor four Φ 4mm cylinder positive electrode metallic supports 104 all around with quadrature again and fix, and make electric connection.The upper/lower terminal of every positive electrode metallic support 104 is established an insulation attachment 105 and is fixed with shell of reactor 108 corresponding installing holes, is fastened on the shell of reactor 108 by 106 insulation of insulation joint pin gim peg attachment 105.Designed positive electrode metallic support 104 outer rims of the present invention are provided with the prevention micro discharge conductor rail retainer plate 107 of internal orifice dimension 4.1mm, equally spaced adjacent prevention micro discharge conductor rail 103, the length of retainer plate is set by the requirement that reduces the mutual shielding action of same polarity electromagnetic field.This routine conductor rail retainer plate 107 is designed to 18--25mm.
Fig. 4 is a reactor power supply electrical schematic diagram of the present utility model.Be provided with in the reactor power supply 2 EMC wave filter 201, rectification circuit 202, filter circuit 203, impulse generator 204, pulse transformer 205 successively preface be electrically connected the external plasma reactor of the output of pulse transformer 205.The oscillator that is provided with in the impulse generator 204, error amplifier, PWM comparator and switching tube, described oscillator, error amplifier and PWM comparator are to make a module; The switching tube D utmost point connects the elementary winding a1 end of pulse transformer 205, and the switching tube S utmost point connects rectification circuit 202 negative output terminals, and switch controlled utmost point C and current detection circuit 206 interior photoelectric coupled circuit IC2 outputs 4 are connected.Another kind of scheme is that three-terminal switch power supply IC1 comprises that TOP225 or TOP224 make, and wherein the D utmost point of TOP225 or TOP224 is connected with pulse transformer a1 end, and the C utmost point connects optocoupler IC2 input, and the S utmost point connects the negative output terminal of rectification circuit 202.Circuit structure is simple, and reliability and technical indicator are poor slightly.Also can be to comprise that with the better monolithic five terminal of performance Switching Power Supply IC1 MC33374 makes, its 5 pin be extremely corresponding with the D of TOP224, and 1,2 pin are extremely corresponding with the C of TOP224, and 4 pin are extremely corresponding with the S of TOP224.Select for use the bigger single-chip switching power supply security performance meeting of power output quite a lot of during design, manufacturing cost is corresponding to be increased.The model of described optocoupler IC2 is PC817 or P721, four corresponding connections of function pin during exchange.
The operating current of plasma reactor is along with the load size variation, the control electric current that current detection circuit 206 is output into direct ratio is delivered to the C utmost point of IC1, oscillator in IC1, error amplifier, PWM comparator are made numeral control and regulation switching tube output pulse width, realize control power output automatically.Pulse transformer 205 elementary winding b1 termination rectification circuit 202 positive output ends, the a1 of pulse transformer 205, a2 are ends of the same name, and b1, b2 are the different name ends, and the switching tube in pulse transformer 205 and the IC 1 is the setting of single-ended flyback inverter.
The utility model air cleaning member is plasma reactor and reactor power supply, and the virus killing factor is a plasma.Sterilizing and purifying mechanism is: plasma is made up of a large amount of positive and negative charged particles and neutral particle and is shown the gas cloud that collective's electric field action, electric charge integral body are quasi-neutrality.Plasma constitutes serious the puncture and destruction to bacterial cell membrane; Be that it can open the gas molecule key again, generate monoatomic molecules, negative oxygen ion .OH ion and free oxygen atom, H
2O
2Deng free radical, have extremely strong activation and oxidability.It has very strong lethality to bacterium, virus.Macromolecule toxic organic compounds such as it can also decomposing formaldehyde, benzene, radon, ammonia, carbon monoxide, flue gas, TVOC change into the low nonpoisonous and tasteless inorganic matter of molecule, as charcoal, water etc.Plasma reactor contains electrostatic field, can adsorb for a short time of 0.01um size particles thing, further purifies air.
For the particulate contaminants of different-grain diameter, adopt newly-designed plasma reactor, actual measurement single stage purification rate η
1Can reach more than 74%, with many combinations, gross decontamination rate η then
AlwaysCan be represented by the formula:
In the formula: η
1Be the single stage purification rate
N is the progression of combination
4 grades of combinations are adopted in new design, and the particulate contaminants purifying rate in 0.1～10 mu m range can reach 99.8% at least.The key technology of plasma reactor is plasma corona discharge field uniformity.The plasma reactor optimal design, can compare favourably with FFU up to more than 99.97% to the above air particles capture rate of 0.3 μ m.
Embodiment 2:
Fig. 2 is the structural representation that another kind of embodiment is provided with the VMC toilet.The toilet that non-thermal plasma air disinfection purifier is housed is provided with VMC 5.Air cleaning member 1, reactor power supply 2 and controller 7 are installed in the plenum chamber 11.Air cleaning member 1 is to require to be provided with more than 2 according to the volume of toilet and cleanliness factor, links together with the positive electrode of high-voltage line 26 with all plasma reactors.Described plenum chamber 11 air inlets are provided with breeze fan 3b, imitate air cleaner 9 and roughing efficiency air filter 4 during the air inlet of breeze fan 3b is provided with; Roughing efficiency air filter 4 front ends are provided with VMC 5, VMC 5 from air inlet be provided with successively roughing efficiency air filter 4, effect air cleaner 9, new wind blower fan 3a, surface cooler 23, heater 24, humidifier 25, VMC 5 air outlets and breeze fan 3b are communicated with backwind tube 17 after with the airtight installation of pipeline again.The power control terminal of surface cooler 23, heater 24, humidifier 25 is connected with controller 7 outputs, makes the humiture in the toilet 6 suitable by the programme-control that is provided with in the controller 7.
Also be provided with damping layer 21 and homogenizing plate 22 between described toilet 6 and the plenum chamber 11, make the air-flow of the toilet 6 that flows through form vertical way flow air curtain; Be provided with grating panel 14 between toilet 6 and the return air trench 8, be equipped with the return air hole 15 that is evenly distributed on the grating panel 14; 6 both sides, toilet are provided with corridor 13.
Embodiment 3:
Fig. 5 is a pulse transformer structural representation of the present utility model; Fig. 6 is a pulse transformer circuit diagram of the present invention.The specially designed pulse transformer 205 in toilet that non-thermal plasma air disinfection purifier is housed is provided with a multiple-grooved insulated coil skeleton 212, and secondary coil 215 is that three sections to five sections of branches are wound in the multiple-grooved insulated coil skeleton 212 corresponding grooves and are in series; Be provided with magnetic core 216 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 216; Described magnetic core 216 optimal design iron-base ultramicro-crystal iron core also can be provided with ferrite core.The positive output end of secondary coil 215 is provided with high-voltage conducting wires 213 and is connected with the positive electrode of the plasma reactor of air cleaning member 1, and the negative output terminal of secondary coil 215 is communicated with earth connection with after the negative electrode of plasma reactor is connected again.
The primary coil 214 and the secondary coil 215 of pulse transformer 205 (being B1) are oppositely to be provided with.Secondary coil 215 is that the upper end of each line bag of segmentation coiling 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.High pressure fast recovery diode 217 is made high-frequency isolation with secondary coil 215 each line bag, and the distribution capacity of winding is to descend by index, helps improving the rising edge of output pulse and the speed of trailing edge; Can also reduce reverse proof voltage requirement, not only reduce cost, but also increased functional reliability, obtain beyond thought effect high pressure fast recovery diode 217.
In general, it is original about 1/9th that coil divides the winding distribution capacity of three sections coilings, and it is original about 1/25th that coil divides the winding distribution capacity of five sections coilings.The proof voltage parameter of high pressure fast recovery diode 217 is 12KV at least, and recovery time is less than 80nS.Magnetic core 216 is iron-base ultramicro-crystal iron cores, is provided with magnetic air gap 218 in the magnetic loop, and the width that is provided with of magnetic air gap 218 is 0.15--0.4mm, is adjusted according to operating frequency and power output; Most preferred embodiment operating frequency 38KHz, power output 7W, it is 0.25mm that magnetic air gap 218 is provided with width.Described magnetic core 216 also can be that the ferrite core material of R2KD is made.Just the work magnetic flux density of magnetic ferrite magnetic core is not high, magnetic conductivity is on the low side, just can reach original inductance value about winding coil need double, this can make the delivery efficiency, pulse climbing speed index of pulse transformer 205 superior not as the iron-base ultramicro-crystal iron core certainly.
It is in parallel with rectification circuit 202 dc output ends to establish capacitor C3 in the filter circuit 203.Rectification circuit 202 is to be connected by bridge rectifier by diode D1, D2, D3 and D4.The L of reactor power supply of the present invention, N input are provided with power coupling J1, L phase line series connection fuse F1.
The utility model reactor power supply 2 operation principles: when the switching tube in the impulse generator 204 is encouraged by pwm pulse and during conducting, secondary high pressure fast recovery diode 217 is because of oppositely ending; Rectification circuit 202 VDs are applied to the two ends of pulse transformer 205 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; When switching tube ends, because inductive current can not suddenly change, the primary coil 214 both end voltage poles reversal, magnetic energy--electric energy is changed fast, polarity of voltage on the secondary coil 215 is put upside down and is made high pressure fast recovery diode 217 forward conductions, primary coil 214 energy stored are sent to secondary coil 215, provide the output pulse current to external plasma reactor power supply.
Fig. 7 is the current waveform figure of pulse power output of the present utility model.This discharge current waveform is to record on the sample resistance device R2 of the external plasma reactor earth terminal of the output of pulse transformer 205.Digital oscilloscope shows and shows: pulse duty factor is 16%, and pulse width is 3uS, and be 70nS pulse rise time.The utility model pulse transformer output electrion current waveform high conformity, the corona discharge of plasma reactor is stable.
Embodiment 4:
Fig. 8 is electromagnetic compatibility of the present utility model, Conduction Interference test report.The utility model reactor power supply 2 is provided with EMC wave filter 201, and wave filter 201 is provided with differential mode inductance device LI and common-mode inductor L2 series connection, EMC wave filter 201 input shnt capacitor C1, EMC wave filter 201 output shnt capacitor C2.Removal is by rectification circuit 202, switching tube and the caused most of differential mode of pulse transformer 205 work, common mode interference signal.The two ends of pulse transformer 205 primary coils are provided with the pulse amplitude limiter circuit, impulse generator 204 is by the setting of inverse-excitation type inverter with pulse transformer 205, external plasma reactor and mains isolation, plasma reactor shell (negative electrode) earth connection, electromagnetic shielding, security performance are good.Test report shows: the present invention is in the 0.009---30MHz band limits, and the electromagnetic compatibility index meets domestic and international related standards regulation.
Embodiment 5:
The described plasma reactor in toilet that non-thermal plasma air disinfection purifier is housed is to select for use more than two according to the air containment in the toilet 6 to install side by side; The plasma reactor shell be with FFU similar can directly replace renewal.Be provided with the woven wire that is communicated with earth connection in described toilet 6 surroundings walls, toilet's 6 corridor direction metopes are provided with electro-conductive glass window 50, and the window frame of electro-conductive glass window 50 and door are that metal is made, and they also are communicated with earth connection.The static of toilet 6, electromagnetic shielding index can meet subscriber-related requirement.
The utility model Athermal plasma purifying unit is that device is on toilet's ceiling, make room air pass through plasma reactor with the speed of per second 0.2-0.5 rice, flow through the flow of Athermal plasma purifying unit by per hour calculating, and is ten times of room air total amount at least.The windage of Athermal plasma purifying unit of the present invention own is much smaller than high efficiency particle air filter, FFU, so the A weighted acoustic power level noise of the utility model Athermal plasma purifying unit is not more than 50 decibels.The power of fan of particularly selecting for use is below 1/3rd of prior art, and caloric value greatly reduces, in the toilet circulating current temperature rise also low, can save the energy consumption of refrigerator summer in a large number, energy-conservation more remarkable.
This specification only is that the embodiment with reference to accompanying drawing has done to further specify to the present invention, is not to qualification of the present utility model.In technical concept scope of the present utility model, those skilled in the art can make the variety of way simple deformation that comprises material or be equal to alternative by the designed content of the invention of above-mentioned announcement, all belong in the technical concept scope of the present utility model, can't depart from spirit of the present utility model or surmount the scope of claims definition.
Claims (8)
1. the toilet of non-thermal plasma air disinfection purifier is housed, comprise air cleaning member (1), reactor power supply (2), blower fan (3), VMC (5), toilet (6), controller (7), return air trench (8), air cleaner (9), plenum chamber (11), return air bend pipe (12) and grating panel (14), air cleaning member (1) is contained in the plenum chamber (11) on top, toilet (6), form airtight environment, it is characterized in that described air cleaning member (1) is a plasma reactor, be provided with in the plasma reactor some nickel chromium triangle wires or metal tape in same plane by the equidistant positive electrode (101) that is arranged in parallel and makes, positive electrode (101) places adjacent two negative electrodes (102) middle part; The two ends of positive electrode (101) are to be fixed on to stop micro discharge conductor rail (103) to be gone up in corresponding groove or the protuberance, and described prevention micro discharge conductor rail (103) is to be made by aluminium bar or stainless steel strip; 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 upper/lower terminal of every positive electrode metallic support (104) is established an insulation attachment (105) and is fixed with the corresponding installing hole of shell of reactor (108); Be provided with in the described reactor power supply (2) EMC wave filter (201), rectification circuit (202), filter circuit (203), impulse generator (204), pulse transformer (205) successively preface be electrically connected the external plasma reactor of output (1) of pulse transformer (205); Described pulse transformer (205) output cold end is provided with current detection circuit (206), detected pulse transformer (205) output current signal is sent into impulse generator (204) input, the oscillator that is provided with in the impulse generator (204), error amplifier, PWM comparator and switching tube; Described pulse transformer (205) elementary winding b1 termination rectification circuit (202) positive output end, a1, the a2 of pulse transformer (205) is end of the same name, b1, b2 are the different name ends, and the switching tube in pulse transformer (205) and the impulse generator (204) is the setting of single-ended flyback inverter.
2. the toilet that non-thermal plasma air disinfection purifier is housed according to claim 1, it is characterized in that described plenum chamber (11) air inlet is provided with breeze fan (3b), the air inlet of breeze fan (3b) is provided with roughing efficiency air filter (4) and middle effect air cleaner (9); Breeze fan (3b) front end is provided with VMC (5), VMC (5) from air inlet be provided with successively roughing efficiency air filter (4), effect air cleaner (9), new wind blower fan (3a), surface cooler (23), heater (24), humidifier (25), VMC (5) air outlet and breeze fan (3b) are used the pipeline air tight communication.
3. the toilet that non-thermal plasma air disinfection purifier is housed according to claim 1, it is characterized in that described pulse transformer (205) is provided with a multiple-grooved insulated coil skeleton (212), secondary coil (215) is that three sections to five sections of branches are wound in the corresponding groove of multiple-grooved insulated coil skeleton (212) and are in series; Be provided with magnetic core (216) 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 (216); Described magnetic core (216) optimal design iron-base ultramicro-crystal iron core also can be provided with ferrite core.
4. the toilet that non-thermal plasma air disinfection purifier is housed according to claim 1 and 2, it is characterized in that also being provided with damping layer (21) and homogenizing plate (22) between described toilet (6) and the plenum chamber (11), make the air stream that flows to toilet (6) form vertical way flow air curtain; Be provided with grating panel (14) between toilet (6) and the return air trench (8), be equipped with the return air hole (15) that is evenly distributed on the grating panel (14); Both sides, toilet (6) are provided with corridor (13).
5. the toilet that non-thermal plasma air disinfection purifier is housed according to claim 1, it is characterized in that described return air trench (8) air outlet is equipped with breeze fan (3c), breeze fan (3c) air outlet upwards is provided with backwind tube (17) and is communicated with VMC (5), is provided with return air air-lock (18) in the backwind tube (17); Breeze fan (3c) air outlet is to the outdoor exhaust duct (16) that is provided with, and exhaust outlet (20) is logical outdoor, is provided with air draft air-lock (19) in the exhaust duct (16).
6. the toilet that non-thermal plasma air disinfection purifier is housed according to claim 1, it is characterized in that described EMC wave filter (201) is provided with differential mode inductance device LI and common-mode inductor L2 series connection, EMC wave filter (201) input shnt capacitor C1, EMC wave filter (201) output shnt capacitor C2.
7. the toilet that non-thermal plasma air disinfection purifier is housed according to claim 1 is characterized in that described plasma reactor is to select for use more than two according to the air containment in toilet (6) to install side by side; The plasma reactor shell be with FFU similar can directly replace renewal.
8. the toilet that non-thermal plasma air disinfection purifier is housed according to claim 1, it is characterized in that being provided with the woven wire that is communicated with earth connection in described toilet (6) surroundings wall, toilet (6) corridor direction metope is provided with electro-conductive glass window (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202159765U CN201715634U (en) | 2009-12-31 | 2009-12-31 | Cleaning room provided with athermal plasma air-sterilization purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202159765U CN201715634U (en) | 2009-12-31 | 2009-12-31 | Cleaning room provided with athermal plasma air-sterilization purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201715634U true CN201715634U (en) | 2011-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202159765U Expired - Lifetime CN201715634U (en) | 2009-12-31 | 2009-12-31 | Cleaning room provided with athermal plasma air-sterilization purifier |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922765B (en) * | 2009-12-31 | 2012-10-10 | 周云正 | Clean room with non-thermal plasma air disinfection purifier |
| CN106288059A (en) * | 2016-08-05 | 2017-01-04 | 武汉华星光电技术有限公司 | Power house ventilation dust pelletizing system |
| CN108970346A (en) * | 2017-06-02 | 2018-12-11 | 中国石油化工股份有限公司 | A kind of safety protection control method of low-temperature plasma degradation organic waste gas |
| CN110786184A (en) * | 2019-10-21 | 2020-02-14 | 商丘市农林科学院 | Wheat low-temperature adversity growth test simulation system and use method |
| CN113099599A (en) * | 2021-04-26 | 2021-07-09 | 北京农学院 | Sliding arc discharge reaction device and sterilization method |
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2009
- 2009-12-31 CN CN2009202159765U patent/CN201715634U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922765B (en) * | 2009-12-31 | 2012-10-10 | 周云正 | Clean room with non-thermal plasma air disinfection purifier |
| CN106288059A (en) * | 2016-08-05 | 2017-01-04 | 武汉华星光电技术有限公司 | Power house ventilation dust pelletizing system |
| CN108970346A (en) * | 2017-06-02 | 2018-12-11 | 中国石油化工股份有限公司 | A kind of safety protection control method of low-temperature plasma degradation organic waste gas |
| CN108970346B (en) * | 2017-06-02 | 2021-04-30 | 中国石油化工股份有限公司 | Safety protection control method for degrading organic waste gas by low-temperature plasma |
| CN110786184A (en) * | 2019-10-21 | 2020-02-14 | 商丘市农林科学院 | Wheat low-temperature adversity growth test simulation system and use method |
| CN113099599A (en) * | 2021-04-26 | 2021-07-09 | 北京农学院 | Sliding arc discharge reaction device and sterilization method |
| CN113099599B (en) * | 2021-04-26 | 2022-04-26 | 北京农学院 | Sliding arc discharge reaction device and sterilization method |
| WO2022227236A1 (en) * | 2021-04-26 | 2022-11-03 | 北京农学院 | Gliding arc discharge reaction device and sterilization method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110119 Effective date of abandoning: 20091231 |