CN101929255B - Hospital operating room with plasma air sterilization purifier - Google Patents
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- CN101929255B CN101929255B CN200910263772A CN200910263772A CN101929255B CN 101929255 B CN101929255 B CN 101929255B CN 200910263772 A CN200910263772 A CN 200910263772A CN 200910263772 A CN200910263772 A CN 200910263772A CN 101929255 B CN101929255 B CN 101929255B
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Abstract
The invention belongs to the technical field of air sterilization and purification, and in particular relates to a hospital operating room with a plasma air sterilization purifier. The hospital operating room comprises an air purification unit, a pulse power supply, a controller, an operating table, a data transmission C-shaped arm, an operating lamp and a grating floor, wherein the air purification unit is a plasma reactor which is provided with a positive electrode and a negative electrode; the positive electrode is a component formed by equidistantly and parallelly arranging a plurality of anti-oxidation metal straps on the same plane, and the negative electrode is made of an aluminum plate or a stainless steel plate; the plasma reactor is also provided with a plurality of micro-discharge prevention conductive rails made of aluminum bars or stainless steel bars; and two ends of the positive electrode are respectively fixed at corresponding positions on the micro-discharge prevention conductive rails. Due to the design, the hospital operating room is provided with complete operation facilities, can efficiently kill bacteria and viruses, degrade TVOC, eliminate peculiar smell and remove granular aerosol, and has the advantages of energy conservation, high reliability, long working life and dynamic sterilization.
Description
Technical field:
The invention belongs to technical field of air sterilization and purification, be specifically related to be provided with the hospital operating room of plasma air disinfection purifier.
Background technology:
Hospital is a special environment, and patient is intensive, flowability is big, and air pollution is serious; Enclosed air conditioning system ward, operating room especially are housed, help the procreation of virus and bacterium microbe, superinfection takes place in the propagation that tends to produce the disease of, and causes the operative treatment failure.Several years ago SARS, bird flu particularly, the outburst of the influenza A H1N1 influenza virus of present stage, hospital has become the high-risk point that people pay close attention to.
Airborne virus and bacterium microbe exist with the aerosol form of discrete particles shape mostly, and artificial abortion is big, and dust particle is many more, and the content of its microorganism is also just high more.The dust particle number is proportional relevant with air-borne bacteria concentration in the air.Show that according to the U.S. CDC investigation bacterial concentration in the air in the floating material is at 700～1800cfu/m
3The danger of nosocomial infection happens occasionally.The pathogenic microorganism that patient carries is prone to cause cross infection through the aerosol form air-borne transmission.Therefore the improvement of attention and emphasical Respiratory Medicine ward air quality, containment influences the undesirable element of air quality, helps reducing the generation of hospital infection rate.
Ben is that influenza A H1N1 causes global number of the infected on a large scale can't add up, and the up-to-date epidemic situation communique that World Health Organization (WHO) delivers is claimed: global swine flu death toll surpasses ten thousand people, and wherein the U.S. has accounted for big portion.The route of infection of influenza A H1N1 mainly is an air, and infectious pathogen is attached in the air usually≤and 5 μ m swim on the microgranule, flow with air and spread, caused a disease because of sucking this air by the infected; Be droplet infection again: the mouth liquid spittle of patient's cough, sneeze, the substance in spite of illness that produced of speaking is floating in air, and is bigger with the closely infected probability of patient.
For this reason, the professional person studies improvement to the facilities such as sterilizing and purifying of hospital operating room, and technical scheme is nothing more than air disinfecting and purifying devices such as ultraviolet line style, ozone, electrostatics.
The electrostatic air disinfecting and purifying device utilizes the high-pressure electrostatic principle of opposite sex attraction, the antibacterial in the absorption dust.The electrostatic air cleaner--utilize anode discharge, make airborne particulate matter positively charged, under the effect of Coulomb force, the particulate matter of positively charged is captured on the electronegative dust collect plant.It is made up of parts such as ionization apparatus, dust collect plant, air-supply arrangement and high voltage power supplies, can catch the above microgranule 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 noxious bacteria, virus and organic pollution ability; Antibacterial, virus are trapped on the electronegative dust collect plant with particulate matter, 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 high energy electron type is claimed in market):
It utilizes high-frequency electric field to be added on two electrodes of media isolated and does creeping discharge, at a large amount of plus or minus electronics of dielectric surface savings, has an effect with airborne molecule; Also useful corona discharge method produces ozone and other material; Its essence is with the unstable characteristic of ozone and strong oxidation sterilizing.Produce the cluster ion of high-energy, high concentration during the work of energetic ion conversion zone, wherein cation can penetrate bacteria cell wall, gos deep into cell wall inside, destroys the electrolytical balance of cell, damages cell membrane, causes the rapid death of antibacterial, virus.The oxonium ion crowd who produces during the work of energetic ion reaction vessel has extremely strong oxidation activity, makes biomacromolecule such as DNA, ANA chain interruption, with the protein molecular structural deterioration, thus killing microorganisms; Its TVOC that can also degrade eliminates abnormal flavour, and it effectively avoids dirt residual, non-secondary pollution.
Adopt energetic ion (ozone) sterilization characteristics: 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 an ozone in case leak, and the human respiratory tract is damaged, and is eliminated gradually by hospital operating room, ward.
Ultraviolet air disinfection and purification type (UV):
Ultraviolet disinfection adopts the low pressure mercury vapour discharge lamp under the high voltage electric field effect, to give off microorganisms such as ultraviolet kill bacteria that wavelength is 253.7nm, virus.The air that the ultraviolet disinfection system sends blower fan here is given sterilizing, goes back degradation of organic substances and abnormal flavour simultaneously.
Its major defect is: ultraviolet belongs to black light, leaks easily, can damage human eye, skin; The quartz burner working life also has only 8000 hours.Problem is 100m
3Reach Ministry of Public Health in the room about the II of hospital class environmental standard, it is similar that ultraviolet, ozone will reach the energy consumption of same Disinfection Effect, is 160--240W; The particularly existence of above-mentioned defective, this also is the reason that present hospital seldom adopts.
For example: application number is 200680031353.1; Denomination of invention " the new design of hospital operating room "; Disclose the higher hospital operating room of a kind of up-to-dateness on August 27th, 2008, comprised the case that gas, vacuum and electric current can be provided, the operating-table of directed up-down; C type arm and the flat panel monitor failed it is said that count, automatic focus operating lamp and robot cleaner; What describe in claim the 39th and 78 is " UV, ozone or UV and ozone sterilization equipment that at least one is installed on ceiling ", and in claim the 43rd and 82 descriptions are " operating room is by fumigation " technical schemes.
This invention operating room equipment advanced person is justifiable, and it has designed UV and ozone sterilization equipment, and killing microorganisms, degraded TVOC are though it is effective to eliminate abnormal flavour, exactly powerless for the aerosol of discrete particles shape.Be that the ozone leakage damages the human respiratory tract again, ultraviolet leakage also can damage human eye, skin, comprises fumigation, and they all can not be used for dynamic disinfection.The dynamic disinfection of hospital operating room is significant, because human body itself is antibacterial, viral pollution source, it is to have a fantastic idea that operation is carried out asking patient and medical worker to leave the back sterilization midway again.
Summary of the invention:
The present invention is in order to address the deficiencies of the prior art, to provide a kind of operation facility complete, efficiently kill bacteria, virus again, and the TVOC that can degrade again eliminates abnormal flavour, removes the aerosol of discrete particles shape; And energy-conservation, good reliability, long working life can be made the hospital operating room that dynamic disinfectant is provided with plasma air disinfection purifier.
In order to achieve the above object; The hospital operating room that is provided with plasma air disinfection purifier that the present invention designed comprises air cleaning member, the pulse power, controller, operating-table, transfer of data C type arm, plenum chamber, return air trench, operating lamp, damping layer, grating panel.Damping layer is established at the operating room top; Plenum chamber is positioned at above the damping layer, and grating panel is established in the operating room bottom, and the return air trench is positioned at below the grating panel; Establish operating-table, transfer of data C type arm and operating lamp in the operating room; Air cleaning member is located on the damping layer, and the high-voltage output end and the air cleaning member of the pulse power are electrically connected, and the outfan of controller is electrically connected with the input of the pulse power; Damping layer makes the air flow that flows to operating room form vertical way flow air curtain.Described air cleaning member is a plasma reactor; Be provided with anelectrode and negative electrode in the plasma reactor; Anelectrode is to be located in the same plane by some sludge proof metal tapes to process 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 processed, and amounts to the n+1 piece.Also be provided with some the prevention micro discharge conductor rails of being processed by aluminium bar or stainless steel strip in the plasma reactor, the two ends of described anelectrode 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 a conductor rail insulating support 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 lead.
The plenum chamber air inlet on preferably described operating room top is provided with the operating room blower fan; Connect through airduct; Be provided with VMC, VMC is provided with new wind filter, surface cooler, heater, new wind blower fan, new pathogenic wind lock successively from fresh inlet, and new pathogenic wind lock is installed in the airduct.Surface cooler, heater are used to regulate new pathogenic wind-warm degree, and new pathogenic wind lock is regulated resh air requirement.Described operating room bottom return air trench air outlet is provided with exhaust system; Exhaust system is established exhaust duct and is connected; Air draft blower fan and air draft air-lock are housed in the exhaust system, and the part waste gas in the operating room is discharged from the exhaust system air outlet, and the air draft air-lock is regulated exhaust air rate.Be provided with the return air air-lock between described return air trench and the airduct, regulate the part return air amount in the operating room; Described operating room is imported and exported and is provided with the corridor, makes area of isolation.
Preferably described prevention micro discharge conductor rail is provided with the protuberance of equidistant arrangement, and the two ends of anelectrode are the protuberance tops that is separately fixed on the corresponding conductor rail.The protuberance of prevention micro discharge conductor rail two of symmetries up and down is made as one group, and every stops the protuberance of micro discharge conductor rail to establish the n group, and the protuberance top is provided with elbow laterally.The anelectrode two ends are provided with the rustless steel connection box, are washed into square hole in the middle of the rustless steel connection box, and described protuberance top elbow is inserted in the rustless steel connection box square hole.Described negative electrode leans on the upper/lower terminal on shell of reactor limit respectively to establish the negative electrode fixing pin of a protrusion, and recessing butt joint in shell of reactor corresponding position is fastening.
The aluminium sheet that preferably described negative electrode surface is an oxidation processes is processed, and nanoscale TiO is laid on the two sides of negative electrode
2
Be provided with a semiconductor switch pipe Q1 and pulse booster transformer in the preferably described pulse power, semiconductor switch pipe Q1 and pulse booster transformer are provided with by the single-ended flyback inverter circuit.The drain D of described semiconductor switch pipe Q1 is connected with the primary coil of pulse booster transformer end a1 of the same name; 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.The end a1 of the same name of primary coil and secondary coil, a2 and different name end b1, b2 are reverse the settings.Described pulse booster transformer is provided with a multiple-grooved insulated coil skeleton, and secondary coil is that three sections to seven sections of branches are wound in the corresponding groove of multiple-grooved insulated coil skeleton and are in series; Each line is wrapped end and 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 high pressure fast recovery diode negative pole is connected on the initiating terminal of high potential line bag.
Be provided with magnetic core in the endoporus of preferably 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.
The G utmost point of preferably described switching tube Q1 is provided with drive circuit IC, is provided with agitator ZTC, error amplifier WCF and comparator PWM in the drive circuit IC, and drive circuit IC processes a module; Also can select for use Switching Power Supply to control integrated circuit U C3842 class substitutes.
The preferably described anelectrode of processing is to be processed by the sludge proof high-resistance electrothermic alloy, also can be that the Aludirome material is processed; The trade mark of the nickel chromium triangle metal tape of anelectrode is the high-resistance electrothermic alloy of Cr20Ni80, and the trade mark that also can be the siderochrome aluminum 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:
The present invention except provide the operation facility complete, also design the advanced air disinfection purifier of operating room.Described air cleaning member is a plasma reactor; Be provided with anelectrode and negative electrode in the reaction vessel; Anelectrode is to be located in the same plane by some sludge proof metal tapes to process an assembly by equidistant being arranged in parallel; Negative electrode is that aluminium sheet or corrosion resistant plate are processed, and also is provided with some the prevention micro discharge conductor rails of being processed by aluminium bar or stainless steel strip, and the two ends of anelectrode are separately fixed at and stop on the micro discharge conductor rail on the opposite position.So compared with prior art, the micro discharge effect is prevented from the plasma reactor, makes every anelectrode in the direct current highfield, make stable corona discharge, obtains aggressive plasma.With discharge electrode be zigzag or the acicular point discharge compared that is in of point, the anelectrode of metal tape is evenly discharge around the band shape, airborne nitrogen and oxygen can not be activated, the ozone of generation and nitrogen oxide≤0.02mg/M
3, obtain plasma intensity and be zigzag or sharp acicular 2--4 doubly, can efficient kill bacteria, virus, the TVOC that can degrade again eliminates abnormal flavour.Plasma is the ionized gas cloud that electric charge is quasi-neutrality, and plasma one leaves the high voltage electric field of reaction vessel, and the ionized state gas cloud is reduced immediately, leaves wax candle with flame and extinguishes reason immediately and communicate; Therefore it is safe making virus killing factor pair human body with plasma, can do dynamic sterilization.Plasma is eager to excel compared with the virus killing factor of UV and ozone, the little aerosol of high-pressure electrostatic field energy absorption particle diameter in the reaction vessel to 0.01 μ m discrete particles shape, and the virus killing equipment of UV and ozone type can't be compared especially.
The two ends of prevention micro discharge conductor rail of the present invention respectively are provided with a conductor rail insulating support, and are fixed in the corresponding installing hole of shell of reactor, but shell ground connection.Metal shell the right and left and negative electrode balance portion have the negative electrode effect simultaneously concurrently, omit two negative electrode plates, make the overall structure of plasma reactor compacter, simple, and safety.What exploitation the present invention paid close attention to is: when the metal tape of anelectrode is made corona discharge in reaction vessel, cause that sputter causes export license after, metal tape loss place is zoomed out apart from negative electrode plate because of damaged back, discharge current reduces naturally; Otherwise the less position of metal tape loss discharge current increases automatically.Like this, the anelectrode loss is in the self regulation state, further prolongs its working life, and the useful working life of anelectrode can reach 8--12, obtains beyond thought effect.
The present invention is applicable to hospital operating room.It has the broad-spectrum sterilization effect: to staphylococcus aureus, escherichia coli, bacillus subtilis, read viruses such as strain bacterium, mycete 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 abnormal flavour, degradation of formaldehyde, smog and TVOC.Through surveying: at 20m
3The Staphylococcus albus of artificial spray-painting in the sealing space air, the average kill ratio behind the work 30min of the present invention is 99.98%; The killing rate of work 60min can be up to 100%, Degradation Formaldehyde rate 98.7%, and ozone amount≤0.02mg/m is retained in suspended particles number≤350/L (Φ>=0.5 μ m) in the air
3
Energy-conservation is conspicuous: the present invention is at 200m
3The reaction vessel consumed power that reaches the II of hospital class environment disinfected standard in the operating room is 16W, and reaches the ultraviolet of effect same and the air disinfection purifier energy consumption of ozone is at least 320W.The present invention is safe and reliable, simple in structure, easy for installation, energy-conservation again.
It is nearly tens ages that plasma is used for air disinfection and purification equipment, and former plasma reactor anelectrode is selected the good fine wire of corona discharge for use, 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, and it is undesirable to be used for plasma reactor.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 anelectrode is selected the air disinfection purifier of zigzag or prong shape structure for use, majority was done the plasma reactor of tinsel as anelectrode in the past.Because " fracture of wire " just had no way out and made prong shape, zigzag electrode into.
For example: the Chinese invention patent application number is 200710038821.4, and denomination of invention " assembly modular type systyle electrostatic field device " description 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, discharge electrode two ends connection 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, and the dust collector pole two ends connect receives electrode connecting parts, and the discharge electrode connector is connected on the insulator with the receipts electrode connecting parts.
" bottom of discharge electrode is a zigzag " that foregoing invention is created is to do something against one's will.Would rather sacrifice the sterilizing and purifying effect, to exchange the working life of disinfection purifier for; Abandoning the fine wire anelectrode and selecting the technical scheme of zigzag or tip-like discharge electrode for use is a kind of prejudice.
Through investigation and analysis: most technical staff are in order to solve the Insulation Problems between the plasma reactor positive and negative electrode, select for use insulant to make directly fixing plasma reactor anelectrode wiry of support.Research shows: the insulant that dielectric constant is high is beneficial to the positive and negative electrode of isolating high potential, and deadly defect is in plasma reactor, will produce the micro discharge phenomenon.The material that dielectric constant is high more, its surface micro electric discharge phenomena 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 anelectrode, under the catalytic action of plasma, cause the local micro discharge that produces of tinsel and insulant contact area.The high energy electron that this micro discharge phenomenon produces plays direct effect to the ionization and the disassociation of insulant and metallic conduction material molecule, and catabolite is their oxide and water.The root place that the discharge anelectrode of Here it is plasma reactor selects for use fine wire to be blown easily.The anelectrode of prior art ionic medium precursor reactant device select for use fine wire to be blown easily basic reason--the micro discharge effect does not come to light, also indeterminate to its reason physically, thereby also just can not find the technical scheme that solve to stop the micro discharge effect." also being provided with some the prevention micro discharge conductor rails of being processed by aluminium bar or stainless steel strip in the plasma reactor; the two ends of described anelectrode are to be separately fixed to stop on the micro discharge conductor rail on the opposite position " of the present invention makes according to " micro discharge effect " in this plasma reactor.
This shows that 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 a hospital operating room cross-sectional view of the present invention;
Fig. 2 is the three-dimensional structure diagram of air cleaning member semi-section of the present invention;
Fig. 3 is a prevention micro discharge track structures sketch map of the present invention;
Fig. 4 is a pulse power electrical schematic diagram of the present invention;
Fig. 5 is a pulse booster transformer structural representation of the present invention;
Fig. 6 is a pulse booster transformer circuit diagram of the present invention;
Fig. 7 is a pulse booster transformer output electrion current waveform figure of the present invention.
The critical piece description of reference numerals:
1-air cleaning member 2-pulse power 4-controller
5--operating-table 6-transfer of data C type arm 7-plenum chamber
8-return air trench 9-exhaust system 10-corridor
11-operating room blower fan 12-return air air-lock 13-operating lamp
14-damping layer 15-grating panel 16-exhaust duct
The new pathogenic wind lock of the new wind blower fan of 17-airduct 21-22-
The new wind filter of 23-surface cooler 24-heater 25-
26-VMC 31-air draft blower fan 32-air draft air-lock
101-anelectrode 102-negative electrode 103-stops the micro discharge conductor rail
105-conductor rail insulating support 108-shell of reactor 109-protuberance
110-rustless 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 done further to describe in detail.
Embodiment 1:
Fig. 1 is a hospital operating room cross-sectional view of the present invention; Fig. 2 is the three-dimensional structure diagram of air cleaning member semi-section of the present invention; Fig. 3 is a prevention micro discharge track structures sketch map of the present invention.
The present invention is provided with the hospital operating room of plasma air disinfection purifier, comprises air cleaning member 1, the pulse power 2, controller 4, operating-table 5, transfer of data C type arm 6, plenum chamber 7, return air trench 8, operating lamp 13, damping layer 14, grating panel 15.Damping layer 14 is established at the operating room top, and plenum chamber 7 is positioned at above the damping layer 14.Grating panel 15 is established in the operating room bottom, and return air trench 8 is positioned at below the grating panel 15.Establish operating-table 5, transfer of data C type arm 6 and operating lamp 13 in the operating room, air cleaning member 1 is located on the damping layer 14.The high-voltage output end of the pulse power 2 and air cleaning member 1 are electrically connected, and the outfan of controller 4 is electrically connected with the input of the pulse power 2.
Described air cleaning member 1 is a plasma reactor; Be provided with anelectrode 101 and negative electrode 102 in the plasma reactor; Anelectrode 101 is to be located in the same plane by some sludge proof metal tapes to process an assembly by equidistant being arranged in parallel, and amounts to n group (n be 50 with interior integer); Described negative electrode 102 is that aluminium sheet or corrosion resistant plate are processed, and amounts to the n+1 piece; Also be provided with some the prevention micro discharge conductor rails of being processed by aluminium bar or stainless steel strip 103 in the plasma reactor, the two ends of described anelectrode 101 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 a conductor rail insulating support 105 respectively is set, and be fixed in the shell of reactor 108 corresponding installing holes; Some stop micro discharge conductor rail 103 usefulness resistance to oxidation leads to make electric connection.
The air inlet of plasma reactor can add and imitate air filter in one, to alleviate the particulate matter adsorbance of plasma reactor.
The corona discharge electric field of the anelectrode 101 of some sludge proof metal tapes is radially being evenly distributed all around along anelectrode 101.Select reaction vessel in force for use with the above-mentioned different structure anelectrode of volume; The positive and negative electrode arcing distance is also identical; Comprise conditions such as power configuration; The plasma density that reaction vessel produced that sludge proof metal tape anelectrode 101 is processed is more than two times of reaction vessel of zigzag or tip-like anelectrode; And the ozone index of measuring be zigzag or tip-like the anelectrode reaction vessel 1/4th, meet country about the ozone amount≤0.16mg/m in " IAQ standard "
3Regulation.
Shell of reactor 108 can be the iron plate of oxidation resistant layer such as zinc coating, nickel, also available aluminum or corrosion resistant plate is rolling forms.Mandatory declaration be that shell of reactor 108 of the present invention is also held a concurrent post the negative electrode function with negative electrode 102 parallel both sides, not only delicate structure is simple, saves material; And firmly whole, stable performance.
Another technical scheme: stop micro discharge conductor rail 103 to be provided with the groove of equidistant arrangement, the two ends of anelectrode 101 are to be separately fixed in corresponding prevention micro discharge conductor rail 103 grooves; Every stops the groove of micro discharge conductor rail 103 to establish the n group.The width of groove and the degree of depth match with the metal tape of anelectrode 101, and advantage is that the location is accurate, and metal tape is difficult for rocking in air flow, and processing technique is simple; Shortcoming is nonelastic, and the working time is of a specified duration, and the metal tape of anelectrode 101 can relax.
Embodiment 2:
Described operating room bottom return air trench 8 air outlets are provided with exhaust system 9; Exhaust system 9 is established exhaust duct 16 and is connected; Air draft blower fan 31 and air draft air-lock 32 are housed in the exhaust system 9, and the part waste gas in the operating room is discharged from exhaust system 9 air outlets, and air draft air-lock 32 is regulated exhaust air rate; Be provided with return air air-lock 12 between described return air trench 8 and the airduct 17, regulate the part return air amount in the operating room.The return air amount generally accounts for 70% of sterilizing and purifying air total amount, and it is significant practicing thrift the subway platform air conditioning energy consumption.Described operating room is imported and exported and is provided with corridor 10, makes area of isolation.
Embodiment 3:
Described prevention micro discharge conductor rail 103 is provided with the protuberance 109 of equidistant arrangement, and the two ends of anelectrode 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 two of symmetries be made as one group, every protuberance 109 that stops micro discharge conductor rail 103 is established n and is organized, protuberance 109 tops are provided with elbow laterally; Anelectrode 101 two ends are provided with rustless steel connection box 110, are washed into square hole in the middle of the rustless steel connection box 110, and described protuberance 109 top elbows are inserted in rustless steel connection box 110 square holes; Described negative electrode 102 leans on the upper/lower terminal on shell of reactor 108 limits respectively to establish the negative electrode fixing pin 111 of a protrusion, and shell of reactor 108 corresponding position recessing butt joints 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 process 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.Twist the gong nail to negative electrode 102 crimps and rigging error can occur, all be not so good as this preferential embodiment on the technology.
Described protuberance 109 top elbows are inserted in rustless steel connection box 110 square holes; Protuberance 109 is rustless steel flexure strips of thickness 0.3～1mm.During assembling, process rustless steel connection box 110 and anelectrode 101 two ends according to the length that designs, be inserted in the rustless steel connection box 110 at two ends protuberance 109 elbows of corresponding prevention micro discharge conductor rail again, easy and simple to handle, the technical specification high conformity.
Apart from design, distance range is to arrange by 10～30mm between the metal tape of every anelectrode 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 anelectrode 101 and the negative electrode 102 is 6～20mm.Distance between anelectrode 101 and the negative electrode 102 is to set according to the electric field intensity of plus high-pressure power supply.
Embodiment 4:
Described negative electrode 102 surfaces are that the aluminium sheet of oxidation processes is processed, 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 is produced.Plasma and free radical are dual efficient kill bacteria virus, degraded VOC, pollutant; Also save quartz burner and ballast, obtain beyond thought effect.
Described nanoscale TiO
2It is the Detitanium-ore-type catalyst of band-gap energy 3.2eV.
Ben is that the aluminium sheet of plasma reactor negative electrode 102 surface oxidation treatment is processed, and the upper layer face is prone to lay TiO
2The Al that oxidation processes generates
2O
3Aspect is thin, at 18KV
P-PDo not influence 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, 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 big 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 that Organic substance decomposes, 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 is equivalent to the high temperature of 15000K; Free radical can also destroy the cell membrane of antibacterial, and Cytoplasm is run off, and then the oxidation nucleus, and killing bacteria.It directly kill bacteria be CO with thorough decomposing organic matter
2And H
2Inorganic harmless micromolecule such as O reaches antibacterial, deodorization, the effect of air cleaning.Photocatalyst at present commonly used is the titanium dioxide of the extremely strong ultramicronization of oxidability, and inspection center's testing result shows: photocatalyst to the killing rate of common antibacterial 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 to damage easily and the big drawback of power consumption; Kill bacteria and decomposing organic matter effect are doubled.
Embodiment 5:
Fig. 4 is a pulse power electrical schematic diagram of the present invention; Fig. 5 is a pulse transformer structural representation of the present invention; Fig. 6 is a pulse 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 and pulse booster transformer 216 are provided with by the single-ended flyback inverter circuit; Semiconductor switch pipe Q1 provided by the invention and pulse booster transformer are provided with by the single-ended flyback inverter circuit, and 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 described semiconductor switch pipe Q1 is connected with the primary coil of pulse booster transformer 216 214 end a1 of the same name; 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; End a1 of the same name, a2 and different name end b1, the b2 of primary coil 214 and secondary coil 215 is reverse settings; Described pulse booster transformer 216 is provided with a multiple-grooved insulated coil skeleton 212, and secondary coil 215 is that three sections to seven sections of branches are wound in the multiple-grooved insulated coil skeleton 212 corresponding grooves and are 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 anelectrode 101 usefulness high-voltage conducting wires 213.
The present invention designs and presses the setting of single-ended flyback inverter circuit, obtains the high-frequency narrow-pulse drive current, sparking and so on fault in the plasma reactor work that is capacitive, can not occur.Mandatory declaration be, the inverse-excitation type inverter also makes the plasma reactor and the mains isolation that are attached thereto except the completion task of boosting, the directly safety ground of the negative electrode of reaction vessel and shell, capability of electromagnetic shielding is better.
Obtaining beyond thought beneficial effect simultaneously is: the pulse current of inverse-excitation type inverter output is that Q1 makes the magnetic energy abrupt release that is stored in the elementary winding of pulse booster transformer 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; Be 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 pulse generator pulse transformator when closing, thus the semiconductor switch plumber of the pulse power to do be safe, holding circuit is only done auxiliary using.This designed reliability is high, and switching tube can be selected the common power transistor of withstand voltage 600V for use.
Embodiment 6:
Among Fig. 5, 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.
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 agitator ZTC, error amplifier WCF and comparator PWM in the drive circuit IC, and drive circuit IC processes a module; Also can select for use Switching Power Supply to control integrated circuit U C3842 class substitutes.
Another kind of technical scheme is to select for use Switching Power Supply control IC 1 to comprise that switching tube is to share a monolithic integrated optical circuit TOP225 or TOP224 processes, or the better monolithic five terminal of performance Switching Power Supply IC1 comprises that MC33374 processes.
The pulse power 2 operation principles of the present invention:
Civil power is by the rectification circuit bridge rectifier, and filter capacitor filtering obtains dc source DC.As switching tube Q1 and during conducting by pwm pulse excitation; 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 with the magnetic energy stored in form in the inductance of primary coil 214; Pulse booster transformer 216 secondary high fast recovery diodes 217 are because of oppositely ending.When switching tube Q1 ends; Because inductive current can not suddenly change, 214 voltage polarity moments of primary coil are reverse, and the polarity of voltage on the secondary coil 215 is put upside down and made high pressure fast recovery diode 217 forward conductions; Primary coil 214 energy stored abrupt releases; 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 processing in the drive circuit IC are delivered in the operating current sampling of plasma reactor of flowing through.When plasma reactor is worked, be damaged, wear out, the abnormality signal code during short circuit is through handling, the output pulse width of comparator PWM is zero, switching tube Q1 is closed, and realizes protection automatically.Equally, when the operating current of plasma reactor changes because of the load size, the output pulse width of comparator PWM also changes, and gauge tap pipe Q1 ON time is realized the adjustment pulse power 2 outputs automatically, makes plasma reactor make stable corona discharge.
Fig. 7 is pulse booster transformer 216 output electrion current waveform figures of the present invention.This discharge current waveform is on the sample resistance device of the external plasma reactor earth terminal of the outfan of pulse booster transformer 216, to record.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.
Disinfection factor of the present invention is that low temperature plasma adds and excites TiO
2The free radical that is produced.
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 antibacterial, 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, like charcoal, water etc.; The plasma reactor of set inside contains electrostatic field, can adsorb for a short time of 0.01 μ m size particles thing, further purifies air.
The present invention adds titanium dioxide (TiO
2) photocatalysis under the ultraviolet light effect that plasma reactor sends, excite TiO
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, reaches antibacterial, the effect that deodorization, air cleaning double.
Embodiment 8:
The described anelectrode 101 of processing is to be processed by the sludge proof high-resistance electrothermic alloy, also can be that the Aludirome material is processed; The trade mark of the nickel chromium triangle metal tape of anelectrode 101 is the high-resistance electrothermic alloy of Cr20Ni80, and the trade mark that also can be the siderochrome aluminum is the high-resistance electrothermic alloy of 0Cr27A17Mo2; Its maximum operation (service) temperature is 1400 ℃, resistance to oxidation.
The metal tape width of anelectrode 101 is 1～2mm, and thickness is 0.05～0.20mm, the platen surface setting that the end face that metal tape is thin is aimed at negative electrode 102.Metal tape is thin more, and discharge inception voltage is low more, and the plasma density of generation is high; But bad mechanical strength.It is good that metal tape thickness is got 0.08～0.12mm effect in the design.During the loss of metal tape positive discharge, its discharge end face surface area remains unchanged, and useful working life can reach 8--12.The siderochrome aluminum of present embodiment is processed metal tape and is magnetic, and performance is poor slightly.
The anelectrode 101 of another technical scheme is that Ti3Al is that basic titanium alloy material is processed.Titanium aluminide is the titanium alloy of base.Compare with general titanium alloy, titanium aluminide is that high-temperature behavior is good for Ti3Al (α 2) and the great advantage of TiAl (γ) intermetallic compound of base, and maximum operation (service) temperature is respectively 816 ℃ and 982 ℃, and oxidation resistance is strong, creep-resistant property good and in light weight.
The present invention aims at large and medium-sized hospital operating room design, and medical personnel, superior, comfortable, the advanced environment of sterilizing of patient are provided, and helps patient's early recovery.Reference disinfection apparatus of the present invention also can be used for the air disinfection and purification of ICU, isolation ward, comprises the air disinfection and purification of office building and even family etc.
The above 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 invention.In technical concept scope of the present invention, those skilled in the art can make the variety of way simple deformation that comprises material or be equal to alternatively by the content of above-mentioned announcement, all belong in the scope of technical scheme of the present invention.
Claims (9)
1. be provided with the hospital operating room of plasma air disinfection purifier, comprise air cleaning member (1), the pulse power (2), controller (4), operating-table (5), transfer of data C type arm (6), plenum chamber (7), return air trench (8), operating lamp (13), damping layer (14), grating panel (15); Damping layer (14) is established at the operating room top; Plenum chamber (7) is positioned at above the damping layer (14), and grating panel (15) is established in the operating room bottom, and return air trench (8) is positioned at below the grating panel (15); Establish operating-table (5), transfer of data C type arm (6) and operating lamp (13) in the operating room; Air cleaning member (1) is located on the damping layer (14), and the high-voltage output end of the pulse power (2) and air cleaning member (1) are electrically connected, and the outfan of controller (4) is electrically connected with the input of the pulse power (2); Damping layer (14) makes the air flow that flows to operating room form vertical way flow air curtain;
It is characterized in that described air cleaning member (1) is a plasma reactor; Be provided with anelectrode (101) and negative electrode (102) in the plasma reactor; Anelectrode (101) is to be located in the same plane by some sludge proof metal tapes to process an assembly by equidistant being arranged in parallel; Amount to the n group, n is 50 with interior integer; Described negative electrode (102) is that aluminium sheet or corrosion resistant plate are processed, and amounts to the n+1 piece; Also be provided with some the prevention micro discharge conductor rails of being processed by aluminium bar or stainless steel strip (103) in the plasma reactor, the two ends of described anelectrode (101) 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 a conductor rail insulating support (105) respectively is set, and be fixed in the corresponding installing hole of shell of reactor (108); The earthing of casing; Some stop micro discharge conductor rail (103) to make electric connection with the resistance to oxidation lead.
2. the hospital operating room that is provided with plasma air disinfection purifier according to claim 1; Plenum chamber (7) air inlet that it is characterized in that described operating room top is provided with operating room blower fan (11); Operating room blower fan (11) connects through airduct (17); Be provided with VMC (26), VMC (26) is provided with new wind filter (25), surface cooler (23), heater (24), new wind blower fan (21), new pathogenic wind lock (22) successively from fresh inlet, and new pathogenic wind lock (22) is installed in the airduct (17); Surface cooler (23), heater (24) are used to regulate new pathogenic wind-warm degree, and new pathogenic wind lock (22) is regulated resh air requirement;
Described operating room bottom return air trench (8) air outlet is provided with exhaust system (9); Exhaust system (9) is established exhaust duct (16) and is connected; Air draft blower fan (31) and air draft air-lock (32) are housed in the exhaust system (9); Part waste gas in the operating room is discharged from exhaust system (9) air outlet, and air draft air-lock (32) is regulated exhaust air rate; Be provided with return air air-lock (12) between described return air trench (8) and the airduct (17), regulate the part return air amount in the operating room; Described operating room is imported and exported and is provided with corridor (10), makes area of isolation.
3. the hospital operating room that is provided with plasma air disinfection purifier 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, anelectrode (101) is the protuberance (109) that is fixed on the conductor rail; The protuberance (109) of prevention micro discharge conductor rail (103) two of symmetries up and down 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 is provided with elbow laterally; Anelectrode (101) two ends are provided with rustless steel connection box (110), are washed into square hole in the middle of the rustless steel connection box (110), and described protuberance (109) top elbow is inserted in rustless steel connection box (110) square hole; Described negative electrode (102) leans on the upper/lower terminal on shell of reactor (108) limit respectively to establish the negative electrode fixing pin (111) of a protrusion, and recessing butt joint in shell of reactor (108) corresponding position is fastening.
4. the hospital operating room that is provided with plasma air disinfection purifier according to claim 1 is characterized in that described negative electrode (102) surface is that the aluminium sheet of oxidation processes is processed, and nanoscale TiO is laid on the two sides of negative electrode (102)
2
5. the hospital operating room that is provided with plasma air disinfection purifier 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) are provided with by the single-ended flyback inverter circuit;
The drain D of described semiconductor switch pipe Q1 is connected with primary coil (214) the end a1 of the same name 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; The end a1 of the same name of primary coil (214) and secondary coil (215), a2 and different name end b1, b2 are reverse the settings; Described pulse booster transformer (216) is provided with a multiple-grooved insulated coil skeleton (212), and secondary coil (215) is that three sections to seven sections of branches are wound in the corresponding groove of multiple-grooved insulated coil skeleton (212) and are 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.
6. the hospital operating room that is provided with plasma air disinfection purifier according to claim 5; It is characterized in that being provided with magnetic core in the endoporus of described primary coil (214) and secondary coil (215) makes electromagnetic coupled, is provided with magnetic air gap (218) in the magnetic loop of magnetic core; Described magnetic core design is unshakable in one's determination with iron-base ultramicro-crystal, or ferrite core is set.
7. the hospital operating room that is provided with plasma air disinfection purifier 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 agitator ZTC, error amplifier WCF and comparator PWM in the drive circuit IC, drive circuit IC is a module.
8. according to claim 1 or the 3 described hospital operating rooms that are provided with plasma air disinfection purifier, it is characterized in that described anelectrode (101) is to be processed by the sludge proof high-resistance electrothermic alloy.
9. according to claim 1 or the 3 described hospital operating rooms that are provided with plasma air disinfection purifier, it is characterized in that described anelectrode (101) is to be processed by the Aludirome material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910263772A CN101929255B (en) | 2009-12-31 | 2009-12-31 | Hospital operating room with plasma air sterilization purifier |
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| CN200910263772A CN101929255B (en) | 2009-12-31 | 2009-12-31 | Hospital operating room with plasma air sterilization purifier |
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| CN101929255A CN101929255A (en) | 2010-12-29 |
| CN101929255B true CN101929255B (en) | 2012-09-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI574711B (en) * | 2016-05-18 | 2017-03-21 | Sg Biomedical Co Ltd | Skin repair device |
| MX2020009035A (en) * | 2020-04-30 | 2022-05-20 | Integrated Viral Prot Solutions Llc | Mobile purification device having heated filter for killing biological species, including covid-19. |
| CN111905926B (en) * | 2020-07-27 | 2022-08-09 | 珠海市斗门区永兴盛环保工业废弃物回收综合处理有限公司 | Novel industrial waste gas treatment equipment of environmental protection |
| EP4005667A1 (en) | 2020-11-27 | 2022-06-01 | Plasma Innova S.A. | Non-thermal plasma air purifier |
| US11446600B2 (en) | 2020-12-10 | 2022-09-20 | Hourani Ip, Llc | Detoxification device having heated filter for killing pathogens |
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| CN101929255A (en) | 2010-12-29 |
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