CN103960218A - Laser sterilizing and disinsectizing method and device - Google Patents
Laser sterilizing and disinsectizing method and device Download PDFInfo
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- CN103960218A CN103960218A CN201310047153.7A CN201310047153A CN103960218A CN 103960218 A CN103960218 A CN 103960218A CN 201310047153 A CN201310047153 A CN 201310047153A CN 103960218 A CN103960218 A CN 103960218A
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Abstract
The invention relates to a laser sterilizing and disinsectizing method and device. The laser sterilizing and disinsectizing method includes that a laser generates laser beams, the laser beams are reflected to the outside space through a galvanometer scanning system and scan back and forth along the X-direction and the Y-direction to form a light curtain, and the light curtain passes a target area through a moving mechanism; the laser beams forming the light curtain irradiate bacteria or viruses in the target area so as to enable protein of the outside layer of the bacteria or viruses to be coagulated to be incapable of absorbing nutrients to die, or insects within the target area can be irradiated to die. The laser beams are clean resources free of chemical pollution. The laser sterilizing and disinsectizing is simple in structure and convenient to operate, and is easy to store and capable of sterilizing and disinsectizing in a quite large space without damages to human bodies as long as power and action time are properly controlled.
Description
Technical field
The invention belongs to sterilization and disinfestation field, more specifically, relate to a kind of method and apparatus that utilizes laser sterilization and disinfestation.
Background technology
The places such as hospital ward are the places of various patient's centralized activitys, are also the places that various bacteriums and virus are grown, deposit, bred.These bacteriums, virus excrete by skin, saliva conventionally in patient body, be attached on bed quilt, table chair, also be attached in a large number dust, be free in air, especially every day medical personnel make the rounds of the wards, folded while being organized ward or afterwards, in ward, air is filling the air a large amount of various pathogene, and now ward air Jun Luo Mi degree is maximum, cause the same branch of a family ward mate or string room ward mate during this period the chance of cross-infection greatly increase.
Existing insect pest, bacteria-treating mode have medicine to kill to remove, or kill after utilizing light, smell, chemical substance etc. to lure insect.Wherein, no matter be the trapping mode of medicine, smell or chemical substance, all can cause certain harmful effect to environment, even can affect health.
Current having utilizes laser to kill the device of mosquitos and flies, but general fixed in position must be attached complicated tracing-positioning system simultaneously, has increased the cost of equipment, the limited space that the while can act on.Existing to utilize the device that laser is killed mosquitos and flies be the hot calcination effect of utilizing under high light or high-energy substantially, and energy utilization efficiency is lower, and equipment need to work long hours, Real-Time Monitoring mosquitos and flies dynamically and triggering for generating laser kill, the easy loss of the energy.
At present temporary transient not by laser utilization at example or report aspect sterilizing virus killing.
Laser scanning is not formed at present to the report that light curtain kills bacterium in object space region or mosquito on a large scale, simultaneously.
Summary of the invention
For addressing the above problem, the object of the present invention is to provide a kind of laser sterilization and disinfestation method, it can arbitrarily move to cover any target area, utilizes laser sterilization and disinfestation effectively.
Another object of the present invention is to provide the device of realizing said method.
The object of the present invention is achieved like this: a kind of laser sterilization and disinfestation method, is characterized in that: by laser beam, in the external space, along X, Y-direction, come flyback retrace to form light curtain, and mobile light curtain makes light curtain through target area; Bacterium or virus in the laser irradiation target area of formation light curtain, make the protein coagulating of its surrounding layer cannot draw nutrition and death, or the insect in irradiation target area makes its death.
Described laser beam is: wavelength is the Ultra-Violet Laser of 337 nanometers, pulse peak power 300kW, pulse frequency 5hz, pulsewidth 10ns; Or wavelength is the infrared laser of 10.6 microns, pulse peak power 200W, pulse frequency 5khz, pulsewidth 0.5ms.
A laser sterilization and disinfestation device, is characterized in that comprising: the laser instrument that produces laser beam; Galvanometer scanning system, by laser beam reflection to the external space, and in the x-direction, y direction comes flyback retrace to form light curtain; Travel mechanism, laser instrument and galvanometer scanning system are installed in travel mechanism.
Described galvanometer scanning system comprises: orthogonal the first speculum of pivot center and the second speculum, and the first speculum is positioned in laser beam light path and by laser beam and reflexes to the second speculum, and the second speculum is by the laser beam directive external space; First, second motor, drives first, second speculum reciprocating rotation by first, second runing rest respectively, makes laser beam carry out flyback retrace in x direction and y direction.
Described galvanometer scanning system also comprises: drive signal generation and regulating circuit plate, receive the power supply signal through step-down, export the following drive circuit board that controls signal to of x, y two directions after reforming; After drive circuit board reception control signal, drive respectively rotation direction and the commutating frequency of first, second motor.
Described laser instrument is the nitrogen molecular laser of output Ultra-Violet Laser, or the carbon dioxide laser of output infrared laser.
Described travel mechanism comprises castor or handle.
Also comprise the laser instrument high voltage source, the scanning galvanometer system power supply that are installed in travel mechanism.
Compared with prior art, the present invention utilize laser outside spacescan become a width light curtain to kill bacterium, the mosquito in a sheet of target area simultaneously, in identical object space, the power requirement of laser is lower, does not need tracing-positioning system, and structure is simpler, device fabrication cost is lower, and handled easily, by means of the present invention of travel mechanism, can be applied to any space and position, the efficiency of equipment is higher.
Further, if the present invention is subject to surpassing the ultraviolet light of doses or the irradiation of infrared light according to bacterium and virus, the protein of its surrounding layer will be solidified, be hedged off from the outer world, cannot draw nutrition and dead principle, select the laser of specific wavelength, regulate suitable power, the external space is scanned, thereby not only can deinsectization can also effectively kill except bacterium, virus, can not cause to passing people and animals the injury of excess radiation yet, this is different from the method for utilizing the hot calcination effect under high light or high-energy in existing technology, the latter is only effective to killing mosquitos and flies.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention 1;
Fig. 2 is the schematic diagram of the laser optical path of the embodiment of the present invention 1;
Wherein: wherein: travel mechanism's casing 1, dividing plate 2, base plate 3, handle 4, castor 5, laser instrument 6, laser instrument high voltage source 7, light path guidance system 8, the first motor 81, the first runing rest 82, the first speculum 83, the second motor 84, the second runing rest 85, the second speculum 86, light path reflective scan system power supply 11, input path 12, reflective scan light curtain 13, support flat board 14, damping and slide-prevention part 15, rapid fixing 16.
Embodiment
The present invention is a kind of laser sterilization and disinfestation method, it is characterized in that: by laser beam, in the external space, along X, Y-direction, come flyback retrace to form light curtain, and mobile light curtain makes light curtain through target area; Bacterium or virus in the laser irradiation target area of formation light curtain, make the protein coagulating of its surrounding layer cannot draw nutrition and death, or the insect in irradiation target area makes its death.The pulse peak power of laser plays conclusive effect to sterilization and disinfestation.Because burst length pulsewidth is very short, so peak power can be very large, the molecule of bacterial virus can change immediately under this laser (being mainly Ultra-Violet Laser) impulse action, and when a plurality of laser pulse continuous actions, bacterial virus will be dead; Killing mosquitos and flies insect is mainly with infrared laser, at this moment mainly utilizes the fuel factor of pulsed infrared laser light high-peak power, directly burns the mosquito of running into light curtain to death.Because pulsewidth is very short, to people and animals, be therefore harmless simultaneously.During practical operation, according to the actual mosquito density in target area, regulate the movement of light curtain, density is mobile slowing down greatly.
As shown in Figure 1, 2, realize a kind of laser sterilization and disinfestation device of said method, it is characterized in that comprising: the laser instrument 6 that produces laser beam; Galvanometer scanning system 8, by laser beam reflection to the external space, and in the x-direction, y direction comes flyback retrace to form light curtain; Travel mechanism, laser instrument 6 and galvanometer scanning system 8 are installed in travel mechanism.Preferably, described laser instrument is nitrogen molecular laser, and output wavelength is the Ultra-Violet Laser of 337 nanometers, pulse peak power 300kW, pulse frequency 5hz, pulsewidth 10ns; Or carbon dioxide laser, output wavelength is the infrared laser of 10.6 microns, pulse peak power 200W, pulse frequency 5khz, pulsewidth 0.5ms.Described galvanometer scanning system 8 comprises: orthogonal the first speculum 83 of pivot center and the second speculum 86, the first speculum 83 is positioned in laser beam light path and by laser beam and reflexes to the second speculum 86, the second speculums 86 by the laser beam directive external space; The first motor 81, the second motor 84, drive the first speculum 83, the second speculum 86 reciprocating rotations by the first runing rest 82, the second runing rest 85 respectively, makes laser beam carry out flyback retrace in x direction and y direction.Galvanometer scanning system also comprises: drive signal generation and regulating circuit plate, receive the power supply signal through step-down, export the following drive circuit board that controls signal to of x, y two directions after reforming; After drive circuit board reception control signal, drive respectively rotation direction and the commutating frequency of the first motor 81, the second motor 84.Power supply signal input drive signal after step-down occurs and regulating circuit plate, its analog circuit carries out the reformation of frequency and amplitude to signal, the control signal of output x, y two directions enters drive circuit board, drive circuit board drives respectively the first motor 81, the second motor 84, make the first speculum 83, the second speculum 86 small angle rotation back and forth, thereby incoming laser beam is moved up in x, y side simultaneously.Drive signal to occur and regulating circuit plate, drive circuit board adopt existing routine techniques, if can realize the control rotation direction of first, second motor and the circuit of commutating frequency all applicable, no further details to be given herein.Described travel mechanism comprises castor or handle, facilitates people to move and parks.Device also comprises laser instrument high voltage source, the galvanometer scanning system power supply being installed in travel mechanism.Laser power supply and galvanometer scanning system power supply are just opened when equipment is used, and the used time does not just close, therefore can be due to long-time in running order and premature loss.
Each parts in laser sterilization and disinfestation device exist with combination, can replace separately or change certain parts according to actual conditions, maintain easily, can reconfigure according to actual needs, for example the power supply of laser instrument also can be placed on by laser instrument, or the power supply of design output channel more than, the electric energy of laser instrument and galvanometer scanning system is provided respectively simultaneously, or the travel mechanism in specialized designs specific environment (the conventional small size hand four-wheel go-cart in Jin Yi hospital is example in this manual).
As shown in Figure 2, produced the pulsed laser beam of high-power peaks by laser instrument, the galvanometer scanning system 8 of controlling by analog circuit penetrates laser beam orientation, and along x, y scanning direction, forms light curtain in the external space.When frequency is enough high, the whole structure that laser beam moves under galvanometer scanning system 8 is controlled is the light curtain that scans a rectangular pyramid shape.Laser instrument 6 and scanning galvanometer system 8 can fixed in position (such as on wall) or are placed in Yi Ge travel mechanism.Scanning forms the laser of light curtain, and the bacterium in irradiation target area or virus, make the protein coagulating of its surrounding layer cannot draw nutrition and death, or the insect in irradiation target area makes its death.
Laser beam is the clean energy resource without chemical contamination, and simple in structure, easy and simple to handle, and equipment is deposited easily, as long as power and action time are controlled suitably, can, at very large space sterilization and disinfestation, can not damage human body.Therefore, device of the present invention also can be applicable to plant, utilizes the infrared laser rapid scanning space of suitable power, and optionally kill mosquitos and flies and do not damage livestock, to developing animal husbandry, be also favourable and environmental protection.The sterilization and disinfestation that the workshop that also can have relatively high expectations for general restaurant, kitchen, family, school, production environment, laboratory etc. are local, range of application is very extensive.
Below in conjunction with accompanying drawing and object lesson, the present invention is further elaborated, but the present invention is not limited to this specific examples.
Embodiment 1
As shown in Figure 1, the conventional small size hand four-wheel go-cart of Shi Yitai hospital that the travel mechanism in this example adopts, comprises travel mechanism's casing 1, dividing plate 2, base plate 3, handle 4, castor 5.Laser instrument 6 is relative with galvanometer scanning system 8 both positions to be arranged on support flat board 14 regularly, and then support flat board 14 is positioned on dividing plate 2, fixing by rapid fixing 16, in the present embodiment, adopt quick geometrical clamp, during use, support dull and stereotyped 14 and dividing plate 2 are passed through to the clamp clamping of ㄩ type, then screw the hand-screw screw of top until hand-screw screw compresses support dull and stereotyped 14.At four angles of support flat board 14 and the bottom of medium position be provided with damping and slide-prevention part 15, adopt in the present embodiment rubber sheet gasket.Laser instrument high voltage source 7 and light path guidance system power supply 11 are placed on base plate 3.What light path guidance system power supply 11 adopted is the accumulator of 12V.The present embodiment compact conformation, can park in a little place, and each parts exist with syntagmatic, can change separately, maintain easily.
Laser instrument 6 is carbon dioxide laser, and output wavelength is 10.6 microns, the infrared laser of the Gaussian distribution of pulse peak power 200W, pulse frequency 5khz, pulsewidth 0.5ms.
In the present embodiment, be positioned at the first speculum 83 of laser beam light path, laser beam is reflexed to the second speculum 86 along input path 12.The first motor 81, the second motor 84, by the first runing rest 82, the second runing rest 85, drive the first speculum 83, the second speculum 86 small angle rotation back and forth respectively, make laser beam carry out flyback retrace in x direction and y direction, form a reflective scan light curtain 13.
Drive signal generation and regulating circuit plate, receive the power supply signal through step-down, after reforming, export the following drive circuit board that controls signal to of x, y two directions; After drive circuit board reception control signal, drive respectively rotation direction and the commutating frequency of the first motor 81, the second motor 84.Drive signal to occur and regulating circuit plate input signal is ± direct current signal of 15V, while exporting to drive circuit board, x direction signal is that amplitude is ± triangular wave of 3V, frequency >25hz, y direction signal is ± and 3V, the triangular wave of frequency between 0 ~ 25hz.At device, 5 meters, the place ahead, place a plank, can see the sinusoidal waveform that laser beam carves out.In 1 meter, the place ahead of device, place plank, can see the rectangle that the intensive scanning of laser beam carves out.
Process is in the actual test of hospital, if scanning 2*2*2m
3space (exit portal 0.3m outer), it is enough that infrared laser selects mean power to be about 20W.Can see light curtain scanning part, mosquito one touches dead.Kill mosquito efficiency very high.
Patent of the present invention is the design of claimed device not only, and the method for application laser sterilization and disinfestation also should be within protection domain.
The above is only the preferred embodiment of the present invention.Under the premise without departing from the principles of the invention, to the technical scheme of invention, can do the improvement of some applicable actual conditions.Therefore, the protection domain of patent of the present invention is not limited to this, anyly based on non-intrinsically safe change in technical solution of the present invention, includes within protection domain of the present invention.
Claims (8)
1. a laser sterilization and disinfestation method, is characterized in that: by laser beam, in the external space, along X, Y-direction, come flyback retrace to form light curtain, and mobile light curtain makes light curtain through target area; Bacterium or virus in the laser irradiation target area of formation light curtain, make the protein coagulating of its surrounding layer cannot draw nutrition and death, or the insect in irradiation target area makes its death.
2. laser sterilization and disinfestation method according to claim 1, is characterized in that: described laser beam is: wavelength is the Ultra-Violet Laser of 337 nanometers, pulse peak power 300kW, pulse frequency 5hz, pulsewidth 10ns; Or wavelength is the infrared laser of 10.6 microns, pulse peak power 200W, pulse frequency 5khz, pulsewidth 0.5ms.
3. a laser sterilization and disinfestation device, is characterized in that comprising: the laser instrument that produces laser beam; Galvanometer scanning system, by laser beam reflection to the external space, and in the x-direction, y direction comes flyback retrace to form light curtain; Travel mechanism, laser instrument and galvanometer scanning system are installed in travel mechanism.
4. laser sterilization and disinfestation device according to claim 3, it is characterized in that: described galvanometer scanning system comprises: orthogonal the first speculum of pivot center and the second speculum, the first speculum is positioned in laser beam light path and by laser beam and reflexes to the second speculum, and the second speculum is by the laser beam directive external space; First, second motor, drives first, second speculum reciprocating rotation by first, second runing rest respectively, makes laser beam carry out flyback retrace in x direction and y direction.
5. laser sterilization and disinfestation device according to claim 3, it is characterized in that: described galvanometer scanning system also comprises: drive signal to occur and regulating circuit plate, receive the power supply signal through step-down, after reforming, export the following drive circuit board that controls signal to of x, y two directions; After drive circuit board reception control signal, drive respectively rotation direction and the commutating frequency of first, second motor.
6. laser sterilization and disinfestation device according to claim 3, is characterized in that: described laser instrument is the nitrogen molecular laser of output Ultra-Violet Laser, or the carbon dioxide laser of output infrared laser.
7. laser sterilization and disinfestation device according to claim 3, is characterized in that: described travel mechanism comprises castor or handle.
8. laser sterilization and disinfestation device according to claim 3, is characterized in that: also comprise the laser instrument high voltage source, the scanning galvanometer system power supply that are installed in travel mechanism.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310047153.7A CN103960218A (en) | 2013-02-05 | 2013-02-05 | Laser sterilizing and disinsectizing method and device |
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| CN201310047153.7A CN103960218A (en) | 2013-02-05 | 2013-02-05 | Laser sterilizing and disinsectizing method and device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105638607A (en) * | 2016-01-11 | 2016-06-08 | 徐金鹏 | Laser deinsectization machine |
| WO2017105062A1 (en) * | 2015-12-14 | 2017-06-22 | 한국전기연구원 | Method and system for removing biofilm by using high power millimeter waves |
| CN107439511A (en) * | 2017-05-23 | 2017-12-08 | 北京热刺激光技术有限责任公司 | Laser disinfection and deinsectization device |
| CN111249495A (en) * | 2020-04-03 | 2020-06-09 | 光线魔人(深圳)科技有限公司 | Ultraviolet pulse type laser device for killing viruses and bacteria |
| CN111529730A (en) * | 2020-06-19 | 2020-08-14 | 大舜激光(黄山)科技有限公司 | Ultraviolet laser based disinfection and sterilization system and method |
| CN111631202A (en) * | 2020-06-19 | 2020-09-08 | 北京交通大学 | Laser insect killer and insect killing method |
| WO2022011524A1 (en) * | 2020-07-14 | 2022-01-20 | 李习 | Laser virus-filtering screen |
| CN115281165A (en) * | 2022-08-23 | 2022-11-04 | 王川 | Two-dimensional scanning type laser mosquito killing device and method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017105062A1 (en) * | 2015-12-14 | 2017-06-22 | 한국전기연구원 | Method and system for removing biofilm by using high power millimeter waves |
| CN105638607A (en) * | 2016-01-11 | 2016-06-08 | 徐金鹏 | Laser deinsectization machine |
| CN105638607B (en) * | 2016-01-11 | 2018-07-10 | 淮安聚友新能源科技有限公司 | A kind of laser apparatus for killing |
| CN107439511A (en) * | 2017-05-23 | 2017-12-08 | 北京热刺激光技术有限责任公司 | Laser disinfection and deinsectization device |
| CN111249495A (en) * | 2020-04-03 | 2020-06-09 | 光线魔人(深圳)科技有限公司 | Ultraviolet pulse type laser device for killing viruses and bacteria |
| CN111529730A (en) * | 2020-06-19 | 2020-08-14 | 大舜激光(黄山)科技有限公司 | Ultraviolet laser based disinfection and sterilization system and method |
| CN111631202A (en) * | 2020-06-19 | 2020-09-08 | 北京交通大学 | Laser insect killer and insect killing method |
| WO2022011524A1 (en) * | 2020-07-14 | 2022-01-20 | 李习 | Laser virus-filtering screen |
| CN115281165A (en) * | 2022-08-23 | 2022-11-04 | 王川 | Two-dimensional scanning type laser mosquito killing device and method |
| CN115281165B (en) * | 2022-08-23 | 2024-08-23 | 王川 | Two-dimensional scanning type laser mosquito killing device and method |
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