CN1840208A - Microwave-excited ultraviolet sterilizing method, equipment and use - Google Patents
Microwave-excited ultraviolet sterilizing method, equipment and use Download PDFInfo
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- CN1840208A CN1840208A CN 200510020627 CN200510020627A CN1840208A CN 1840208 A CN1840208 A CN 1840208A CN 200510020627 CN200510020627 CN 200510020627 CN 200510020627 A CN200510020627 A CN 200510020627A CN 1840208 A CN1840208 A CN 1840208A
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Abstract
This invention relates to the method, equipment and use of microwave-excited ultraviolet sterilization, and it belongs to sterilization technical sphere. In current technics, ultraviolet is generated by cooperation of common ultraviolet lamp and ballast, and the ultraviolet is low-tenacity and inconvenient to use and maintain; the technics has big limitation and short life. In allusion to those shortages, the invention uses microwave-excited inert gas stored in quartz tube discharge and boiloff hydrargyrum in the tube to generate ultraviolet, and do sterilization to gas or liquid (especially flowing gas and liquid) that passed through the microwave cavity. This invention has good sterilization effect and long life; it is convenient to use and clean, safe and cheap; it can be independency used or matching used with air conditioning, air freshener and other equipments.
Description
Technical field
The present invention relates to a kind of method, equipment and purposes of disinfection, particularly relate to a kind of applied microwave and excite and produce ultraviolet method and apparatus, and utilize this method and apparatus mobile gas, the liquid germ-resistant purposes that carries out disinfection.In International Classification of Patents, belong to the A61L class.
Background technology
People are more healthy than paying attention to more any time before now, many companies and research institution are all carrying out at live with the people sterilizing method of materials such as closely bound up air, water and research and development, the production of product, to adapt to serious environmental pollution day by day in future, disease relay.Utilizing ultraviolet to carry out disinfection and sterilizing is method commonly used at present.(190nm～290nm) have disinfecting and sterilizing functions belongs to broad-spectrum disinfectant sterilization quasi-optical wave to ultraviolet UVC wave band.Studies have shown that, the ultraviolet of UVC wave band can be comprised that numerous antibacterials of bacterial propagule, mycobacterium, coronavirus, fungus, rickettsia and chlamydia etc., the DNA of virus absorb well, thereby destroy the DNA of antibacterial, virus, antibacterial, virus are killed, reached the purpose of disinfection.The germ-resistant main feature of disinfection by ultraviolet light is that the disinfection scope is wide, effective, does not have heat effect during disinfection.
Common disinfection by ultraviolet light method for disinfection all is to adopt general ultraviolet line lamp and ballast to cooperate to produce ultraviolet scheme, has the following disadvantages:
The operation principle of 1. this general ultraviolet line lamp is the same with common daylight lamp, behind the build-up of luminance, by the method for restraint of labour electric current, makes fluorescent tube continue glow discharge and luminous.According to the principle of gas discharge, the gas discharge zone only concentrates near the tube core in the fluorescent tube, is thin-line-shaped, that is to say that region of discharge is less, and the ultraviolet power of generation is also little.Increase tube diameter or increasing operating current all can not improve ultraviolet power effectively; Can improve the ultraviolet general power though increase fluorescent tube length, the installation of long fluorescent tube, use are all inconvenient, are limited to very much.
2. general ultraviolet line lamp generally exposes, and just can work in nobody, to avoid shining directly into the people, so just is not easy to carry out successive, dynamic air disinfection, and it can not directly place the water sterilization that carries out disinfection.
3. when the Burdick lamp tube-surface has dust and foul, can influence ultraviolet generation, not reach good bactericidal effect, therefore need regularly fluorescent tube to be cleaned.But the cleaning of general ultraviolet line lamp is wasted time and energy, and is dangerous, inconvenient, had a strong impact on the use of fluorescent tube.
4. in the life-span of fluorescent tube, GE (AM General company), Panasonic, Philip etc. can reach 8000～10000 hours at present, and China can only reach 1000～3000 hours mostly.
Summary of the invention
The present invention is devoted to solve problems of the prior art, provide a kind of efficient, convenient, utilize the microwave-excited ultraviolet principle to liquid, gas carry out disinfection germ-resistant method, equipment and purposes cheaply.
The invention provides microwave-excited ultraviolet sterilizing method, this method follows these steps to carry out successively:
(1) in the microwave cavity both sides or be installed into airduct or water inlet pipe and discharge pipe or outlet pipe up and down respectively; The microwave cavity wall of blast pipe or water inlet pipe and discharge pipe or outlet pipe and microwave cavity junction is opened some apertures, formation can be by the micro-wave screening web plate of gas and liquid, on the one hand can shield microwaves, minimizing is to the injury of human body, and can allow on the one hand needs the gas of disinfection or liquid by this web plate turnover microwave cavity; It can be straight that blast pipe or water inlet pipe, discharge pipe or outlet pipe are looked concrete applicable cases, can be crooked, and it is arbitrarily angled to be 90 degree, 60 degree etc., and crooked pipeline can prevent that the ultraviolet radiation that arrives pipeline opening by the micro-wave screening web plate from exceeding standard; Behind the quartz burner evacuation, charge into noble gas, add hydrargyrum, form the microwave electrodeless discharge quartz burner, and the microwave electrodeless discharge quartz burner is positioned in the microwave cavity, fluorescent tube directly is exposed in the microwave cavity, be in the microwave-excitation state of accepting, dust adsorbed can be taken out cleaning with fluorescent tube more for a long time on the fluorescent tube from microwave cavity, and is very convenient, helps improving bactericidal effect; Connect microwave cavity and microwave generator, the microwave that microwave generator is produced can enter microwave cavity;
(2) close the microwave cavity door, open microwave generator;
(3) microwave action of microwave generator generation is in the microwave electrodeless discharge quartz burner;
(4) the microwave electrodeless discharge quartz burner is subjected to microwave-excitation to produce ultraviolet, to liquid, the gas depoisoning sterilization through microwave cavity.
Microwave generator produces microwave, and microwave enters microwave cavity, can directly carry out disinfection to gas and liquid through microwave cavity; While microwave direct irradiation, act on the microwave electrodeless discharge quartz burner, the microwave electrodeless discharge quartz burner is subjected to the effect of microwave plasma, produce the ultraviolet (C-band) of 254nm, in microwave cavity, form the strong laser field of C ripple, thereby to the sterilization that carries out disinfection through gas, the liquid of microwave cavity, realization double sterilization function.Different with common Burdick lamp, the region of discharge of microwave electrodeless discharge Burdick lamp is whole fluorescent tube among the present invention, and region of discharge is much larger than general ultraviolet line lamp, and the uitraviolet intensity of generation is far longer than general ultraviolet line lamp.
Based on the above method, can connect the air intake motor on the pipeline of blast pipe or discharge pipe, open microwave generator front opening air intake motor, machine operation can constantly suck the air admission microwave cavity from blast pipe, behind disinfection, flow out from discharge pipe again, accelerate flowing of air; Perhaps on the pipeline of water inlet pipe or outlet pipe, connect water pump, opening microwave generator front opening water pump, liquid constantly is inhaled into and through flowing out from outlet pipe behind the disinfection from water inlet pipe, the flowing of accelerating liquid.
In this method, the enclosure material of the microwave electrodeless discharge quartz burner of placing in the microwave cavity is a high-purity quartz, can mix and add the trace amount of titanium metal, and optical transmission window is at 254nm.The noble gas that charges in the described microwave electrodeless discharge quartz burner can be helium or neon or argon or krypton or xenon, and the content of the hydrargyrum of adding is smaller or equal to 5 milligrams.This microwave electrodeless discharge quartz burner does not have electrode, does not have filament, does not have electric ballast, does not have external any power source.Because fluorescent tube is electrodeless, the service life of lamp is very long, can reach 100000 hours.
During sterilization, the noble gas discharge in the microwave-excitation fluorescent tube causes temperature rising in the fluorescent tube, makes the mercury vaporization in the fluorescent tube; In the vaporescence of hydrargyrum, hydrargyrum produces discharge, and radiates multispectral ultraviolet, and optical transmission window is emitted the ultraviolet of 254nm wavelength at the quartz burner of 254nm, to the sterilization that carries out disinfection of gas, liquid through microwave cavity; The quartz burner that is mixed with the trace amount of titanium metal simultaneously will stop the effusion of 185nm ultraviolet to make air ionization and produce unwanted ozone, stop 320～400nm ultraviolet to be overflowed and make skin produce erythema etc.; Do not have the quartz burner of mixed with titanium metal can discharge the ultraviolet of 185nm, produce ozone, when ozone concentration is big, can not under at the scene the situation, be diffused into ozone in the air people and animals, to the air sterilization that carries out disinfection, the volatilization gas that finishing produces is decomposed in smoke abatement taste removal deodorization; Also can be soluble in water ozone, material in the water such as fruit and vegetable etc. are carried out disinfection, decompose the pesticide that remains on the fruit and vegetable, simultaneously also to the water sterilizing.Certainly, in disinfecting process, the microwave cavity door should be closed infringement human body in order to avoid ultraviolet and microwave are overflowed.
The shape of microwave electrodeless discharge quartz burner can be a linear type, can be ring-like, can be " H " type, can be ball-type.Microwave electrodeless discharge quartz burner in the microwave cavity can be one, can be many, decides on the size of microwave cavity and microwave electrodeless discharge quartz burner and the intensity of disinfection.When the microwave electrodeless discharge quartz burner had many, each fluorescent tube was uniformly distributed in the microwave cavity, and bactericidal effect is better.
The microwave electrodeless discharge quartz burner can assign on the Burdick lamp pipe holder, places in the microwave cavity.The position of Burdick lamp pipe holder in microwave cavity do not limit, and can be arranged at the bottom of the microwave cavity, can be arranged at the microwave cavity top yet, can be arranged at the both sides, front and back or the left and right sides of microwave cavity inwall yet; The modes of emplacement of Burdick lamp pipe holder in microwave cavity do not limit, and can be that slot is fixed, and can be that clamp is fixed, and can directly put into microwave cavity yet and not fix.The material of described Burdick lamp pipe holder can be all materials that nonmetal plastics, pottery etc. can be used for microwave oven.The shape and the size of described Burdick lamp pipe holder are regardless of, and place the microwave electrodeless discharge quartz burner and can put in the microwave cavity just passable as long as can stablize.In use, dust in air can be adsorbed on the microwave electrodeless discharge quartz burner, and the uitraviolet intensity of greatly decaying influences bactericidal effect.Can open the microwave cavity door this moment, and whole easily taking-up Burdick lamp pipe holder and microwave electrodeless discharge quartz burner clean.
Based on the above method, can in the micro-wave screening web plate outside, place the metal sponge net that scribbles titanium dioxide according to the reality needs of sterilizing.This metal sponge Netease is in dismounting.Microwave action produces ultraviolet on the microwave electrodeless discharge quartz burner, the micro-wave screening web plate has shielded microwave, makes it can not leak out microwave cavity, has avoided the sparking of metal sponge net; Ultraviolet then passes the micro-wave screening web plate, and to act on the metal sponge that scribbles titanium dioxide online, and titanic oxide material is subjected to ultraviolet irradiation, produces the basic atomic group of active hydrogen-oxygen (hydroxyl) that strong oxidative decomposition capacity is arranged.O
2 -And OH
-Has extremely strong oxidizing force, the nearly all various Organic substances of degradable in the presence of ultraviolet and oxygen or water attached to titanium dioxide surface, as hydride, nitrogen oxide, sulfide, chloride etc., the part inorganic compound of also degrading, thereby the effect that reaches sterilization, deodorization, purifies air.Titanium dioxide can be coated on a lot of materials, as ground, metope, sponge, metal, plastics, glass, pottery or the like, be that to be coated in the metal sponge online in the present invention, as nickel, rustless steel or other metal, this guarantees that on the one hand titanium dioxide is stained with firmly, and difficult drop-off has strengthened the coated side of titanium dioxide on the other hand, increase the active area of titanium dioxide, thereby reached the purpose of better sterilization, decomposing organic matter (smoke abatement, taste removal).
When this microwave cavity of air admission, C-band ultraviolet and microwave are to the sterilization that carries out disinfection of airborne antibacterial, simultaneously ultraviolet passes the micro-wave screening web plate to shine the metal sponge that scribbles titanium dioxide online, generation has the basic atomic group of active hydrogen-oxygen (hydroxyl) of strong oxidative decomposition capacity, decompose harmful substances in air, realize triple sterilizations, and, make that the antibacterial in the room air is killed by constantly the circulating of air.In like manner can carry out disinfection to liquid.
According to said method, the invention provides a kind of microwave-excited ultraviolet sterilizing equipment, comprise parts such as microwave cavity, microwave generator, microwave cavity door, also have microwave electrodeless discharge quartz burner, blast pipe or parts such as water inlet pipe, discharge pipe or outlet pipe in addition.Microwave generator links to each other with microwave cavity, and the microwave that microwave generator is produced can enter microwave cavity.Microwave cavity both sides or be installed into airduct or water inlet pipe and discharge pipe or outlet pipe up and down respectively, the microwave cavity wall of blast pipe or water inlet pipe and discharge pipe or outlet pipe and microwave cavity junction is opened some apertures, and formation can be by the micro-wave screening web plate of gas and liquid.Behind the quartz burner evacuation, charge into noble gas, add hydrargyrum, form the microwave electrodeless discharge quartz burner, place in the microwave cavity, fluorescent tube directly is exposed in the microwave cavity, is in the microwave-excitation state of accepting.Dust adsorbed can be taken out cleaning with fluorescent tube more for a long time on the fluorescent tube from microwave cavity.The micro-wave screening web plate on the one hand can shield microwaves, reduces the injury to human body, and can allow on the one hand needs the gas of disinfection or liquid by this web plate turnover microwave cavity.It can be straight that blast pipe or water inlet pipe, discharge pipe or outlet pipe are looked concrete applicable cases, can be crooked, and it is arbitrarily angled to be 90 degree, 60 degree etc., and crooked pipeline can prevent that the ultraviolet radiation that arrives pipeline opening by the micro-wave screening web plate from exceeding standard.
On the pipeline of the blast pipe of the said equipment or discharge pipe, the air intake motor can be connected, perhaps on the pipeline of water inlet pipe or outlet pipe, water pump can be connected.The air intake machine operation can constantly suck the air admission microwave cavity from blast pipe, flows out from discharge pipe behind disinfection again, accelerates flowing of air; Pump working can make liquid constantly be inhaled into and through flowing out from outlet pipe behind the disinfection from water inlet pipe, the flowing of accelerating liquid.
The enclosure material of the microwave electrodeless discharge quartz burner in this equipment is a high-purity quartz, can mix to add the trace amount of titanium metal, and optical transmission window is at 254nm.The noble gas that charges in the described microwave electrodeless discharge quartz burner can be helium or neon or argon or krypton or xenon, and the content of the hydrargyrum of adding is smaller or equal to 5 milligrams.This microwave electrodeless discharge quartz burner does not have electrode, does not have filament, does not have electric ballast, does not have external any power source.Because fluorescent tube is electrodeless, the service life of lamp is very long, can reach 100000 hours.Its working mechanism's preamble is described, repeats no more herein.
The shape of microwave electrodeless discharge quartz burner can be a linear type, can be ring-like, can be " H " type, can be ball-type.Microwave electrodeless discharge quartz burner in the microwave cavity can be one, can be many, decides on the size of microwave cavity and microwave electrodeless discharge quartz burner and the intensity of disinfection.When the microwave electrodeless discharge quartz burner had many, each fluorescent tube was uniformly distributed in the microwave cavity, and bactericidal effect is better.
The microwave electrodeless discharge quartz burner can assign on the Burdick lamp pipe holder, places in the microwave cavity.Similar with aforementioned inventive method, the position of Burdick lamp pipe holder in microwave cavity do not limit, and modes of emplacement is not limit, and shape and size are regardless of, and material can be all materials that nonmetal plastics, pottery etc. can be used for microwave oven.In use, dust in air can be adsorbed on the microwave electrodeless discharge quartz burner, and the uitraviolet intensity of greatly decaying influences bactericidal effect.Can open the microwave cavity door this moment, and whole easily taking-up Burdick lamp pipe holder and microwave electrodeless discharge quartz burner clean.
In the said equipment, can also the metal sponge net that scribble titanium dioxide be set in the micro-wave screening web plate outside.Its effect preamble is set forth, repeats no more.
Germ-resistant principle of this equipment disinfection and process and the described method of preamble are similar, repeat no more.
Aforementioned microwave-excited ultraviolet sterilizing method can be used for the sterilization that carries out disinfection of gas, liquid, can be widely to the sterilization that carries out disinfection of air, water, especially can be applicable in the air-conditioning, in attemperation, realize disinfection to air.
The applicant carried out test of many times at the hospital and the construction unit in Chengdu, and result of the test shows, compared with the prior art, advantage of the present invention and beneficial effect mainly are: disinfection, deodorization, taste removal are effective, easy to use, and it is convenient to clean, simple in structure, with low cost, be not afraid of vibrations, the fluorescent tube long service life, be easy to the shift position, and safe and reliable, compliance with environmental protection requirements, it is on-the-spot not need to allow people and animals leave sterilization during disinfection.Because the penetration power of microwave is strong, the volume of microwave excited ultraviolet lamp pipe can be very little under the prerequisite that does not influence disinfection intensity, so the present invention can adapt to the space requirement of different sizes, both can independently use, also can be widely used in multiple product, for example cabinet air-conditioner, wall-hanging air conditioner, central air-conditioning.The present invention is of many uses, both can be applicable to the disinfection to air, can handle finishing pollution (as formaldehyde), also can be applicable to the disinfection to water.The present invention can be widely used in family, villa, hotel, office building, market, hospital, subway, swimming pool, residential quarters drinking water and add numerous places such as building site, food processing place, cinema, public place of entertainment, meeting room, the academic report Room.
In January, 2005, the applicant delivers the simple and easy model machine of playscript with stage directions invention to the disease prevention and control center, Sichuan Province and detects.In February, the disease prevention and control center, Sichuan Province is detected by " disinfection technology standard " (version in 2002) air sterilization effect field trial requirement, detects conclusion to be: at about 80m
3In the bedroom, under the condition of 5～11 ℃ of temperature, relative humidity 60%～70%, this machine start is after 90 minutes, and the average extinction rate of natural bacteria is 93.20% in the air, reaches the qualified requirement of sterilization.
Description of drawings
Fig. 1 is the cutaway view of linear type microwave electrodeless discharge quartz burner.
Fig. 2 is to the air germ-resistant first example structure sketch map that carries out disinfection.
Fig. 3 is to water germ-resistant the 3rd example structure cutaway view that carries out disinfection.
Fig. 4 is to water germ-resistant the 4th example structure cutaway view that carries out disinfection.
To be the 5th embodiment be applied to position view in the air-conditioning with the inventive method to Fig. 5.
Fig. 6 is the structural representation that is applied to the air sterillization sterili-sation unit in the air-conditioning.
Number in the figure is as follows:
1 microwave cavity, 2 microwave generators
3 microwave electrodeless discharge quartz burners, 4 Burdick lamp pipe holders
5 micro-wave screening web plates, 6 blast pipes
7 discharge pipes, 8 air intake motors
9 scribble the metal sponge net 10 microwave cavity doors of titanium dioxide
11 fluorescent tube shells, 12 fluorescent tube inner chambers
13 hydrargyrum, 14 water pumps
15 water inlet pipes, 16 outlet pipes
17 flow control valves, 18 air sterillization sterili-sation unit
19 condensers, 20 heaters
The specific embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are further described.
Embodiment one
As shown in Figure 2.Choose a microwave cavity 1 (intracavity portion is of a size of wide 320mm, high 260mm, dark 320mm) that volume is about 26.6 liters.Choose the linear type quartz burner 3 of eight diameter 15mm, long 250mm.Fluorescent tube inner chamber 12 has charged into an amount of neon, and has added the solid-state hydrargyrum 13 of 1.5mg; The material of fluorescent tube shell 11 is based on high-purity quartz, and mixes and added the trace amount of titanium metal, constitutes microwave electrodeless discharge quartz burner 3 thus.All electrodeless, the no filament of these eight microwave electrodeless discharge quartz burners 3, do not connect power supply, optical transmission window is at 254nm.Choose rectangle (wide 300mm, the long 280mm) plastic board that two areas equate, the relative hole that respectively has eight diameter 15mm on two parallel flat boards, the hole is evenly distributed on the flat board, and two flat board horizontal direction parallel placements one on the other constitute Burdick lamp pipe holder 4.The two ends of every microwave electrodeless discharge quartz burner 3 are inserted respectively in two apertures on the flat board.
The microwave generator 2 that links to each other with microwave cavity 1 has been installed at microwave cavity 1 top.Be installed into airduct 6 and discharge pipe 7 respectively in microwave cavity 1 left and right sides, have some apertures on microwave cavity 1 left and right sides sidewall of blast pipe 6 and discharge pipe 7 and microwave cavity 1 junction, formation can be ventilated and the micro-wave screening web plate 5 of shield microwaves.On the blast pipe 6 at air inlet place, connect air intake motor 8.On the ventilating path in micro-wave screening web plate 5 outsides of microwave cavity 1 left and right sides, a nickel sponge net 9 that scribbles titanium dioxide for convenience detach is set respectively.
Microwave cavity 1 has microwave cavity door 10, opens microwave cavity door 10, will assign the Burdick lamp pipe holder 4 of eight microwave electrodeless discharge quartz burners 3 to put into microwave cavity 1, and microwave electrodeless discharge quartz burner 3 directly is exposed in the microwave cavity 1.
At a 54m
3Confined chamber in, under the condition of 5～11 ℃ of ambient temperatures, relative humidity 60%～70%, test.Close microwave cavity door 10, open air intake motor 8, constantly suck air and enter microwave cavity 1, flow out from discharge pipe 7 again, accelerate flowing of air from left side blast pipe 6.Open microwave generator 2.The microwave that microwave generator 2 produces 230W enters microwave cavity 1, and microwave electrodeless discharge quartz burner 3 is subjected to the effect of microwave plasma in microwave cavity 1, produces the ultraviolet (C-band) of 254nm, forms the strong laser field of C ripple in microwave cavity 1.Air flow is when microwave cavity 1, and the C ultraviolet carries out disinfection to airborne antibacterial and kills.Simultaneously, ultraviolet passes micro-wave screening web plate 5 and shines on the nickel sponge net 9 that scribbles titanium dioxide, the degraded harmful substances in air.By air circulation, make the airborne antibacterial of closed room be killed, the abnormal flavour in the room is eliminated.
The test effect of present embodiment disinfection is as shown in the table:
| The disinfective action time (min) | Bacterial population (cfu/m 3) | Extinction rate (%) |
| Before the sterilization | 6532 | |
| 30 | 1618 | 75.23 |
| 60 | 429 | 93.43 |
| 90 | 65 | 99.00 |
| 120 | 6 | 99.91 |
Annotate: bacterial species: air natural bacteria.
Test is carried out with reference to " disinfection technology standard " 2.1.3.5 in 2002 of Ministry of Health of the People's Republic of China.Start shooting after 60 minutes, the extinction rate of air natural bacteria reaches the qualified requirement of sterilization greater than 93%.
In addition, behind disinfection repeatedly, dust adsorbed can be more on the micro-wave nonpolar quartz burner, and can open microwave cavity door 10 this moment, easily Burdick lamp pipe holder 4 cleaned together with microwave electrodeless discharge quartz burner 3 whole taking-up from microwave cavity 1.
Above-mentioned microwave electrodeless discharge quartz burner 3 is changed the quartz burner that does not contain titanium, will produce ozone in the course of the work, can be not under at the scene the situation people and animals, ozone is diffused in the air, to the air sterilization that carries out disinfection, the volatilization gas that finishing produces is decomposed in smoke abatement taste removal deodorization; Also can increase a pulsometer at discharge pipe 7, connect bubble generator by pipeline, the bubble that produces is input to carries out ozone sterilization in the water (such as pond, swimming pool) and handle, also can soak food such as vegetable and fruit with this water, reach disinfection, decompose the purpose of pesticide residue.
Embodiment two
The place identical with embodiment one be repeated description no longer, and difference is:
Microwave electrodeless discharge quartz burner 3 is " H " type, diameter 20mm, two parallel segment length 250mm, a middle segment length 260mm who connects.Fluorescent tube inner chamber 12 has charged into an amount of krypton gas, and has added 4mg liquid mercury 13.Five microwave electrodeless discharge quartz burners 3 have been adopted.Five tubes are placed in parallel in the microwave cavity 1, and perpendicular to blast pipe 6 directions, perpendicular to horizontal plane, spacing is 50mm between two tubes.Fluorescent tube is fixed with clamp, does not adopt Burdick lamp pipe holder 4.Microwave electrodeless discharge quartz burner 3 directly is exposed in the microwave cavity 1.Blast pipe 6 is a straight pipeline, and it is crooked that discharge pipe 7 is 60 degree.Do not adopt air intake motor 8.The metal sponge net 9 that scribbles titanium dioxide is not placed in micro-wave screening web plate 5 outsides.
Select a room (room that intermountain is facingd the wind) that ventilation is very strong, about 33m
3, open the window that facings the wind, close other door and window.4～6 ℃ of ambient temperatures, relative humidity 65%～75%.Blast pipe 6 is placed on the window of opening that facings the wind, and pipeline opening is towards outside window; Discharge pipe 7 is indoor.Close microwave cavity door 10, open microwave generator 2.The microwave action that microwave generator 2 produces is in microwave electrodeless discharge quartz burner 3.Microwave electrodeless discharge quartz burner 3 is subjected to microwave-excitation to produce ultraviolet, to the air sterillization sterilization through microwave cavity 1.
The test effect of present embodiment disinfection is as shown in the table:
| The disinfective action time (min) | Bacterial population (cfu/m 3) | Extinction rate (%) |
| Before the sterilization | 7866 | |
| 30 | 3929 | 50.05 |
| 60 | 1371 | 82.57 |
| 90 | 311 | 96.04 |
| 120 | 155 | 98.02 |
Annotate: bacterial species: air natural bacteria.
Test is carried out with reference to " disinfection technology standard " 2.1.3.5 in 2002 of Ministry of Health of the People's Republic of China.Start shooting after 90 minutes, the average extinction rate of air natural bacteria reaches the qualified requirement of sterilization greater than 96%.
Embodiment three
Previous embodiment is for to the air sterilization that carries out disinfection, and present embodiment is to the water sterilization that carries out disinfection.As shown in Figure 3.The technology contents identical with embodiment one, embodiment two be repeated description no longer, and difference is:
The right side of water inlet pipe 15 below microwave cavity 1, the right side of outlet pipe 16 above microwave cavity 1 connected a water pump 14 on the water inlet pipe 15, and water flows through microwave cavity 1 from bottom to top under the effect of water pump 14.The microwave generator 2 that two covers link to each other with microwave cavity 1 is installed in microwave cavity 1 left side, and the microwave power of every cover microwave generator 2 outputs is 300W.26 microwave electrodeless discharge quartz burners 3 have been adopted.Every microwave electrodeless discharge quartz burner 3 is ring-like for what do not seal.The noble gas that charges in every microwave electrodeless discharge quartz burner 3 is an xenon, and the hydrargyrum 13 of adding is 5mg, tube diameter 18mm, length overall 1400mm.Microwave electrodeless discharge quartz burner 3 assigns on the Burdick lamp pipe holder 4, is placed horizontally in the microwave cavity 1.Burdick lamp pipe holder 4 is two parallel plastic boards, and 1/2 place and about 1/4 and 3/4 place that do not seal ring-like microwave electrodeless discharge quartz burner 3 insert respectively in the aperture of these two flat boards.The flat board that inserts 1/2 place that does not seal ring-like microwave electrodeless discharge quartz burner 3 places the right side of microwave cavity 1; The flat board that inserts microwave electrodeless discharge quartz burner 3 about 1/4 and 3/4 place is fixed in microwave cavity 1 middle part, does the water-stop processing in seam and aperture place, microwave cavity 1 is cut off be two parts.Water inlet pipe 15 and outlet pipe 16 are 90 degree bend pipes, and the pipeline opening that water inlet pipe 15 and outlet pipe 16 insert microwave cavity 1 is all on the right side of microwave cavity 1, and the water on right side can not flow into microwave cavity 1 left side after cutting off.Current are through micro-wave screening web plate 5 turnover microwave cavities 1.The two ends of not sealing ring-like microwave electrodeless discharge quartz burner 3 are in microwave cavity 1 left side, near microwave generator 2.Anhydrous the flowing through in microwave cavity 1 left side, 500 liters of volumes; There is water on the right side, 2000 liters of volumes.
Open water pump 14, open microwave generator 2, carry out bactericidal assay.Water capacity 2m
3, 14 ℃ of ambient temperatures, 16 ℃ of water temperatures, discharge 2t/ hour, about 30 degree of colourity, about 15 degree of turbidity, the total coli group in the water is 572/L, total number of bacteria is 831/mL.Evidence, behind disinfection of the present invention, the quantity of total coli group is reduced to 1/L, and total number of bacteria is reduced to 11/mL, and the antibacterial in the water is almost completely eliminated, and meets the requirement of GB5749-85 " drinking water sanitary standard ".
Embodiment four
Present embodiment also is to the water sterilization processing that carries out disinfection, as shown in Figure 4.The technology contents identical with embodiment three be repeated description no longer, and different places are:
The right side of water inlet pipe 15 above microwave cavity 1, the right side of outlet pipe 16 below microwave cavity 1 do not connect water pump 14 on the water inlet pipe 15, connect a flow control valve 17 on the outlet pipe 16.Water flows through microwave cavity 1 from top to bottom.Microwave generator 2 is connected microwave cavity 1 left side, and power is 100W.Nine linear microwave electrodeless discharge quartz burners 3 have been adopted.The noble gas that charges in every microwave electrodeless discharge quartz burner 3 is a helium, and the hydrargyrum 13 of adding is 3mg, tube diameter 18mm, long 900mm.Microwave electrodeless discharge quartz burner 3 assigns on the Burdick lamp pipe holder 4, is placed horizontally in the microwave cavity 1.Burdick lamp pipe holder 4 is two parallel earthenware slabs, and an end of microwave electrodeless discharge quartz burner 3 and about 3/5 place insert respectively in the aperture of these two flat boards.The flat board that inserts microwave electrodeless discharge quartz burner 3 one ends places the right side of microwave cavity 1, the flat board that inserts microwave electrodeless discharge quartz burner 3 about 3/5 places is fixed in microwave cavity 1 middle part, handle through water-stop, it is two parts that microwave cavity 1 is cut off, the pipeline opening that water inlet pipe 15 and outlet pipe 16 insert microwave cavity 1 is all on the right side of microwave cavity 1, and the water on right side can not flow into microwave cavity 1 left side after cutting off.Current are through micro-wave screening web plate 5 turnover microwave cavities 1.On the flow path in upper and lower micro-wave screening web plate 5 outsides, a copper sponge net 9 that scribbles titanium dioxide for convenience detach is set respectively.The other end of microwave electrodeless discharge quartz burner 3 is in microwave cavity 1 left side, near microwave generator 2.Anhydrous the flowing through in microwave cavity 1 left side, 125 liters of volumes; There is water on the right side, 300 liters of volumes.
Carry out disinfection test, water capacity 0.3m to water
3, 13 ℃ of ambient temperatures, 14 ℃ of water temperatures, discharge 0.2t/ hour, about 30 degree of colourity, about 15 degree of turbidity, the total coli group in the water is 340/L, total number of bacteria is 670/mL.Evidence, behind disinfection of the present invention, the quantity of total coli group is reduced to 0/L, and total number of bacteria is reduced to 7/mL, and the antibacterial in the water is almost completely eliminated, and meets the requirement of GB5749-85 " drinking water sanitary standard ".
Embodiment five
The present invention can be applicable in the air-conditioning as the air sterillization parts that sterilize, and realizes the disinfection to air in attemperation.As Fig. 5, shown in Figure 6.
33 liters microwave cavity 1 (intracavity portion is of a size of wide 550mm, high 300mm, dark 200mm).Choose the linear type quartz burner 3 of six diameter 15mm, long 480mm.Fluorescent tube inner chamber 12 has charged into an amount of argon, and has added the solid-state hydrargyrum 13 of 0.8mg; The material of fluorescent tube shell 11 is based on high-purity quartz, and mixes and added the trace amount of titanium metal, constitutes microwave electrodeless discharge quartz burner 3 thus.Choose rectangle (wide 180mm, the high 280mm) plastic board that two areas equate, the relative hole that respectively has six diameter 15mm on two parallel flat boards, the hole is evenly distributed on the flat board, and two parallel settings of flat board constitute Burdick lamp pipe holder 4.The two ends of every microwave electrodeless discharge quartz burner 3 are inserted respectively in two apertures on the flat board.
The microwave generator 2 that links to each other with microwave cavity 1 is installed in microwave cavity 1 left side.The blast pipe 6 of air-conditioning and discharge pipe 7 be bottom surface and the last end face by microwave cavity 1 respectively, and blast pipe 6 and discharge pipe 7 have some apertures with microwave cavity 1 bottom surface and the end face of microwave cavity 1 junction, and formation can be ventilated and the micro-wave screening web plate 5 of shield microwaves.On the ventilating path in upper and lower micro-wave screening web plate 5 outsides, a rustless steel sponge net 9 that scribbles titanium dioxide for convenience detach is set respectively.
Microwave cavity 1 dead ahead has microwave cavity door 10, open microwave cavity door 10, to assign the Burdick lamp pipe holder 4 of six microwave electrodeless discharge quartz burners 3 to put into microwave cavity 1, microwave electrodeless discharge quartz burner 3 horizontal positioned directly be exposed in the microwave cavity 1.
At a 16m
3, 14 ℃ of ambient temperatures, the indoor of relative humidity 75% test.
The test effect of present embodiment disinfection is as shown in the table:
| The disinfective action time (min) | Bacterial population (cfu/m 3) | Extinction rate (%) |
| Before the sterilization | 3952 | |
| 30 | 1337 | 66.17 |
| 60 | 302 | 92.35 |
| 90 | 6 | 99.85 |
Annotate: bacterial species: air natural bacteria.
Test is carried out with reference to " disinfection technology standard " 2.1.3.5 in 2002 of Ministry of Health of the People's Republic of China.Start shooting after 60 minutes, the average extinction rate of air natural bacteria reaches the qualified requirement of sterilization greater than 92%.
Method of the present invention, equipment, purposes are illustrated in the above-described embodiments, for avoiding repetition, illustrate no longer one by one.
Claims (26)
1, a kind of microwave-excited ultraviolet sterilizing method is characterized in that: this method follows these steps to carry out:
(one) in microwave cavity (1) both sides or be installed into airduct (6) or water inlet pipe (15) and discharge pipe (7) or outlet pipe (16) up and down respectively; Blast pipe (6) or water inlet pipe (15) and discharge pipe (7) or outlet pipe (16) are opened some apertures with the microwave cavity wall of microwave cavity (1) junction, and formation can be by the micro-wave screening web plate (5) of gas and liquid; Behind the quartz burner evacuation, charge into noble gas, add hydrargyrum (13), form microwave electrodeless discharge quartz burner (3), and microwave electrodeless discharge quartz burner (3) is positioned in the microwave cavity (1); Connect microwave cavity (1) and microwave generator (2);
(two) close microwave cavity door (10), open microwave generator (2);
(three) microwave action of microwave generator (2) generation is in microwave electrodeless discharge quartz burner (3);
(wantonly) microwave electrodeless discharge quartz burner (3) is subjected to microwave-excitation to produce ultraviolet, to liquid, the gas depoisoning sterilization through microwave cavity (1).
2, microwave-excited ultraviolet sterilizing method as claimed in claim 1, it is characterized in that: go up connection air intake motor (8) at blast pipe (6) or discharge pipe (7), perhaps go up connection water pump (14), and opening microwave generator (2) front opening air intake motor (8) or water pump (14) at water inlet pipe (15) or outlet pipe (16).
3, microwave-excited ultraviolet sterilizing method as claimed in claim 1 or 2 is characterized in that: shell (11) material of described microwave electrodeless discharge quartz burner (3) is based on high-purity quartz, and mixing adds the trace amount of titanium metal; The noble gas that charges in the described microwave electrodeless discharge quartz burner (3) can be helium or neon or argon or krypton or xenon, and the content of the hydrargyrum of adding (13) is smaller or equal to 5 milligrams; The shape of microwave electrodeless discharge quartz burner (3) can be a linear type, can be ring-like, can be " H " type, can be ball-type; Microwave electrodeless discharge quartz burner (3) in the microwave cavity (1) can be many, decides on microwave cavity (1) and the size of microwave electrodeless discharge quartz burner (3) and the intensity of disinfection.
4, microwave-excited ultraviolet sterilizing method as claimed in claim 1 or 2 is characterized in that: microwave electrodeless discharge quartz burner (3) assigns on the Burdick lamp pipe holder (4), is positioned in the microwave cavity (1).
5, microwave-excited ultraviolet sterilizing method as claimed in claim 3 is characterized in that: microwave electrodeless discharge quartz burner (3) assigns on the Burdick lamp pipe holder (4), is positioned in the microwave cavity (1).
6, microwave-excited ultraviolet sterilizing method as claimed in claim 1 or 2 is characterized in that: in micro-wave screening web plate (5) outside, place the metal sponge net (9) that scribbles titanium dioxide.
7, microwave-excited ultraviolet sterilizing method as claimed in claim 3 is characterized in that: in micro-wave screening web plate (5) outside, place the metal sponge net (9) that scribbles titanium dioxide.
8, microwave-excited ultraviolet sterilizing method as claimed in claim 4 is characterized in that: in micro-wave screening web plate (5) outside, place the metal sponge net (9) that scribbles titanium dioxide.
9, microwave-excited ultraviolet sterilizing method as claimed in claim 5 is characterized in that: in micro-wave screening web plate (5) outside, place the metal sponge net (9) that scribbles titanium dioxide.
10, a kind of microwave-excited ultraviolet sterilizing equipment, comprise microwave cavity (1), microwave generator (2), microwave cavity door parts such as (10), microwave generator (2) links to each other with microwave cavity (1), it is characterized in that: this equipment also comprises microwave electrodeless discharge quartz burner (3), blast pipe (6) or water inlet pipe (15), discharge pipe (7) or outlet pipe (16); Microwave cavity (1) both sides or be installed into airduct (6) up and down respectively or water inlet pipe (15) and discharge pipe (7) or outlet pipe (16); Blast pipe (6) or water inlet pipe (15) and discharge pipe (7) or outlet pipe (16) are opened some apertures with the microwave cavity wall of microwave cavity (1) junction, and formation can be by the micro-wave screening web plate (5) of gas and liquid; Behind the quartz burner evacuation, charge into noble gas, add hydrargyrum (13), form microwave electrodeless discharge quartz burner (3), microwave electrodeless discharge quartz burner (3) places in the microwave cavity (1).
11, microwave-excited ultraviolet sterilizing equipment as claimed in claim 10 is characterized in that: go up connection air intake motor (8) at blast pipe (6) or discharge pipe (7), perhaps go up connection water pump (14) at water inlet pipe (15) or outlet pipe (16).
12, as claim 10 or 11 described microwave-excited ultraviolet sterilizing equipment, it is characterized in that: shell (11) material of described microwave electrodeless discharge quartz burner (3) is based on high-purity quartz, and mixing adds the trace amount of titanium metal; The noble gas that charges in the described microwave electrodeless discharge quartz burner (3) can be helium or neon or argon or krypton or xenon, and the content of the hydrargyrum of adding (13) is smaller or equal to 5 milligrams; The shape of microwave electrodeless discharge quartz burner (3) can be a linear type, can be ring-like, can be " H " type, can be ball-type; Microwave electrodeless discharge quartz burner (3) in the microwave cavity (1) can be many, decides on microwave cavity (1) and the size of microwave electrodeless discharge quartz burner (3) and the intensity of disinfection.
13, as claim 10 or 11 described microwave-excited ultraviolet sterilizing equipment, it is characterized in that: microwave electrodeless discharge quartz burner (3) assigns on the Burdick lamp pipe holder (4), is positioned in the microwave cavity (1).
14, microwave-excited ultraviolet sterilizing equipment as claimed in claim 12 is characterized in that: microwave electrodeless discharge quartz burner (3) assigns on the Burdick lamp pipe holder (4), is positioned in the microwave cavity (1).
15, as claim 10 or 11 described microwave-excited ultraviolet sterilizing equipment, it is characterized in that:, the metal sponge net (9) that scribbles titanium dioxide is set in micro-wave screening web plate (5) outside.
16, microwave-excited ultraviolet sterilizing equipment as claimed in claim 12 is characterized in that: in micro-wave screening web plate (5) outside, the metal sponge net (9) that scribbles titanium dioxide is set.
17, microwave-excited ultraviolet sterilizing equipment as claimed in claim 13 is characterized in that: in micro-wave screening web plate (5) outside, the metal sponge net (9) that scribbles titanium dioxide is set.
18, microwave-excited ultraviolet sterilizing equipment as claimed in claim 14 is characterized in that: in micro-wave screening web plate (5) outside, the metal sponge net (9) that scribbles titanium dioxide is set.
19, microwave-excited ultraviolet sterilizing method as claimed in claim 1 or 2 can be used for the sterilization that carries out disinfection of air, water especially be can be applicable in the air-conditioning, realizes the disinfection to air in attemperation.
20, microwave-excited ultraviolet sterilizing method as claimed in claim 3 can be used for the sterilization that carries out disinfection of air, water especially be can be applicable in the air-conditioning, realizes the disinfection to air in attemperation.
21, microwave-excited ultraviolet sterilizing method as claimed in claim 4 can be used for the sterilization that carries out disinfection of air, water especially be can be applicable in the air-conditioning, realizes the disinfection to air in attemperation.
22, microwave-excited ultraviolet sterilizing method as claimed in claim 5 can be used for the sterilization that carries out disinfection of air, water especially be can be applicable in the air-conditioning, realizes the disinfection to air in attemperation.
23, microwave-excited ultraviolet sterilizing method as claimed in claim 6 can be used for the sterilization that carries out disinfection of air, water especially be can be applicable in the air-conditioning, realizes the disinfection to air in attemperation.
24, microwave-excited ultraviolet sterilizing method as claimed in claim 7 can be used for the sterilization that carries out disinfection of air, water especially be can be applicable in the air-conditioning, realizes the disinfection to air in attemperation.
25, microwave-excited ultraviolet sterilizing method as claimed in claim 8 can be used for the sterilization that carries out disinfection of air, water especially be can be applicable in the air-conditioning, realizes the disinfection to air in attemperation.
26, microwave-excited ultraviolet sterilizing method as claimed in claim 9 can be used for the sterilization that carries out disinfection of air, water especially be can be applicable in the air-conditioning, realizes the disinfection to air in attemperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510020627 CN1840208A (en) | 2005-03-31 | 2005-03-31 | Microwave-excited ultraviolet sterilizing method, equipment and use |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510020627 CN1840208A (en) | 2005-03-31 | 2005-03-31 | Microwave-excited ultraviolet sterilizing method, equipment and use |
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| CN1840208A true CN1840208A (en) | 2006-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510020627 Pending CN1840208A (en) | 2005-03-31 | 2005-03-31 | Microwave-excited ultraviolet sterilizing method, equipment and use |
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| CN102276014A (en) * | 2011-08-13 | 2011-12-14 | 何志明 | Ultraviolet disinfection method and device capable of running quickly and disinfecting fluid efficiently |
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| CN102616884A (en) * | 2012-03-30 | 2012-08-01 | 宁波大学 | Microwave photocatalytic degradation treatment device for industrial wastewater containing organic pollutants |
| CN102631696A (en) * | 2012-04-16 | 2012-08-15 | 武汉纺织大学 | Electrodeless UV (Ultraviolet) source air cleaning and sterilizing method and device |
| CN105060393A (en) * | 2015-08-12 | 2015-11-18 | 东莞道汇环保科技有限公司 | Microspherical microwave ultraviolet wadding type organic waste water and waste gas treatment device and use method thereof |
| CN105457462A (en) * | 2015-12-22 | 2016-04-06 | 凯天环保科技股份有限公司 | Microwave electrodeless ultraviolet oxidation purification device for VOCs (Volatile Organic Compounds) |
| CN105921011A (en) * | 2015-12-31 | 2016-09-07 | 中山大学 | Method and device for purifying air pollutants by electrodeless ultraviolet catalytic oxidation as well as catalytic ozonation |
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| CN107123586A (en) * | 2017-05-27 | 2017-09-01 | 朱升和 | A kind of microwave module of microwave-driven ultraviolet lamp |
| CN107281531A (en) * | 2017-06-16 | 2017-10-24 | 西安因变光电科技有限公司 | A kind of high efficiency microwave excitation electrodeless ultraviolet lamp array 1 system |
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