CN114450038A

CN114450038A - Disinfection and sterilization system and disinfection and sterilization method

Info

Publication number: CN114450038A
Application number: CN202180005344.XA
Authority: CN
Inventors: 唐昶宇; 罗晓阳; 刘颖彘; 邵虹; 刘彤; 陈勇前; 胡丹
Original assignee: Chengdu Science and Technology Development Center of CAEP
Current assignee: Chengdu Science and Technology Development Center of CAEP
Priority date: 2020-02-28
Filing date: 2021-02-25
Publication date: 2022-05-06
Also published as: WO2021170029A1

Abstract

A disinfection and sterilization system and a disinfection and sterilization method are provided, the disinfection and sterilization system is based on a disinfection and sterilization gas generating device (11), the disinfection and sterilization gas generating device (11) comprises a hydroxyl radical generating part, a mixing part and an enhancing part, hydroxyl radical mist generated in the hydroxyl radical generating part enters the mixing part and then is mixed with ozone, the mixing part is communicated with the enhancing part, the mixed mist enters the enhancing part, a first ultraviolet lamp (6) used for exciting and/or degrading ozone is arranged in the enhancing part, the disinfection and sterilization gas generating device (11) is combined with other devices, and the disinfection and sterilization system is applied to various application occasions to disinfect and sterilize the environment and human body parts; the ozone and the hydroxyl free radical are mixed for killing, so that the ozone-free hydroxyl radical disinfectant is strong in oxidizing capability, good in killing effect, friendly to environment and human bodies, free of secondary pollution and side effects and wide in application range.

Description

Disinfection and sterilization system and disinfection and sterilization method

Technical Field

The invention belongs to the technical field of disinfection and sterilization, and particularly relates to a disinfection and sterilization system and a disinfection and sterilization method.

Background

Ozone has strong oxidation performance, the oxidation potential reaches 2.07V, and can be automatically decomposed into oxygen and oxygen free radicals under certain conditions, the oxygen and oxygen free radicals have strong oxidation activity, can decompose germ cells to achieve the purpose of sterilization, have no secondary pollution residues, and are easy to prepare, thus being an ideal green oxidation medicament. The broad-spectrum sterilization performance is excellent, the sterilization agent has quite strong inactivation capability on all germ propagules, spores and viruses, and the sterilization capability is dozens of times to hundreds of times stronger than that of a chlorine-containing disinfectant, so the sterilization agent is widely accepted by the sterilization industry. However, ozone needs to have as high concentration as possible to exert strong oxidizing and sterilizing capability, but high concentration ozone can damage the respiratory system and eye mucosa of human body, so that the ozone application field is limited.

A set of complex equipment developed by azonator Environmental Solutions company canada to prepare ozone with extremely high concentration (>2000ppm) for treating medical waste has excellent sterilization effect, but equipment manufacturing cost is high (more than 400 ten thousand), the requirement on system air tightness is extremely high, and once leakage is seriously damaged.

Ozone is dissolved in water to prepare hydroxyl-free ozone water which is used for disinfecting objects and air germs and is beneficial to reducing the release amount of ozone, and meanwhile, the oxidation potential of hydroxyl radicals is 2.80eV, the hydroxyl radicals are stronger than the oxidation capacity of ozone, can perform rapid chain reaction with most organic matters, are directly mineralized into carbon dioxide and water, and have stronger sterilization capacity.

The engineering of highly reactive hydroxyl radicals also faces two major problems: (1) how to generate hydroxyl free radicals with high concentration in a large amount at low cost; (2) the service life of the hydroxyl free radical is short and is less than 1 second, and how to effectively transmit and diffuse the hydroxyl free radical to the surfaces of germs. At present, methods for generating hydroxyl radicals include atmospheric pressure plasma excitation, high-energy ultraviolet rays, photocatalytic oxidation, and electrocatalytic oxidation. Most methods for producing hydroxyl radicals are expensive and have not been able to be fabricated into engineering devices (e.g., medical waste, cold chain cargo, etc.) and automated control systems for large-scale object surface sterilization.

Disclosure of Invention

In order to solve the problems that a chemical disinfection mode can generate residue and secondary pollution and the cost of imported ozone disinfection equipment is high, the invention provides a disinfection and sterilization system which is based on a disinfection and sterilization gas generation device, generates hydroxyl radicals with strong oxidizing property, applies a radical mist production device to various fields of disinfection and sterilization and meets disinfection requirements of different fields. In the process of killing, the ozone is limited in the closed space through the closed or semi-closed space, and the ozone cannot leak out to influence the human body in the process of killing; and through the ultraviolet lamp, the oxidation is enhanced or the ozone is degraded, so that the requirements on ozone and hydroxyl free radicals on different devices are met, and the redundant ozone cannot overflow in the air to cause secondary pollution to the surrounding air.

The technical scheme adopted by the invention is as follows:

a sterilizing gas generating device comprises a hydroxyl radical generating part, a mixing part and an enhancing part, wherein fog of hydroxyl radicals generated in the hydroxyl radical generating part enters the mixing part and then is mixed with ozone, the mixing part is communicated with the enhancing part, the mixed fog enters the enhancing part again, and an ultraviolet lamp used for exciting and/or degrading ozone is arranged in the enhancing part.

Preferably, the hydroxyl radical generating part comprises a first ozone generator, the first ozone generator is connected with the gas mixing device, ozone and water generated by the first ozone generator are mixed in the gas mixing device, and then the mixture passes through the atomizing device to form ozone water mist; the mixing portion is internally provided with a second ozone generator, the enhancing portion comprises a first ultraviolet lamp, and the first ultraviolet lamp is arranged corresponding to the first catalyst plate.

Preferably, the gas mixing device is a honeycomb aeration pipe, the honeycomb aeration pipe is arranged in a water tank, an atomizing device is arranged in the water tank, and the atomizing device is an ultrasonic atomizer; a plurality of grid baffles are arranged in the mixing part, and are arranged in a staggered manner to form a mixing channel; the inlet of the mixing channel is respectively communicated with the hydroxyl radical generating part and the outlet of the second ozone generator, and the outlet of the mixing channel is communicated with the inlet of the reinforcing part; the first ultraviolet lamp is a 254nm single-band ultraviolet lamp or a 185nm/254nm double-band ultraviolet lamp.

A disinfection and sterilization system comprises a sterilization and sterilization gas generating device, wherein the sterilization and sterilization gas generating device is arranged in a closed cavity or is communicated with the closed cavity, and disinfection mist generated by the sterilization and sterilization gas generating device is filled in the closed cavity.

Preferably, the closed cavity is a carriage arranged at the rear part of the transport vehicle, articles to be sterilized are contained in the carriage, a carriage door is arranged on the carriage, and a carriage door electromagnetic lock is arranged on the carriage door; the ozone sensor is arranged in the carriage, the exhaust hole is formed in the upper side of the carriage, and the air heater is arranged in the position, close to the exhaust hole, in the carriage.

Preferably, the closed cavity is a disinfection cabinet, an inner cylinder is arranged in the disinfection cabinet, a collection bag is sleeved in the inner cylinder, and articles to be disinfected and killed are contained in the collection bag; the free radical water mist generating device is arranged on the lower side of the disinfection cabinet, and free radical water mist generated by the free radical water mist generating device enters the collecting bag through a gap between the inner barrel and the side wall of the disinfection cabinet.

Preferably, an air jet is arranged on the side wall of the closed cavity, an exhaust fan is arranged at the air jet, a second ultraviolet lamp and a second catalyst screen plate are arranged in the closed cavity, and the second ultraviolet lamp corresponds to the second catalyst screen plate; or a second ultraviolet lamp is arranged in the closed cavity.

Preferably, the closed cavity is a trolley, an air jet is arranged on the side wall of the trolley, the second ultraviolet lamp and the second catalyst screen plate are arranged at the air jet and cover the whole air jet, the air jet is connected with the bent pipe, and the bent pipe can rotate relative to the air jet.

Preferably, the closed cavity is a box body, and the second ultraviolet lamp and the second catalyst screen plate are arranged at the air jet; a water inlet is arranged beside the air injection port and is communicated with a water storage tank, the water storage tank is communicated with a water tank of the sterilizing gas generating device, the water storage tank is arranged above the water tank, and a floating ball water level switch is arranged in the water tank; and the exhaust fan at the air jet is connected with the switch device.

Preferably, the air jet sets up the upside at the box, the other induction port that is provided with of air jet, induction port and the inside intercommunication of box, air jet and induction port upper end cover have the leak protection cover, the leak protection covers and is provided with the hand hole, switching device is infrared inductor.

Preferably, the air injection port is connected with an air injection pipe extending outwards, and the switch device is a pedal arranged at the bottom of the box body.

Preferably, the airtight cavity disinfection shoes box, the last electronic round brush of rotating connection of disinfection shoes box, electronic round brush with wait to disinfect the sole looks adaptation, disinfection shoes box is internal, the below that is located electronic round brush is provided with the dust collection box, the jet orifice sets up the side at electronic round brush, the direction of blowing of jet orifice is towards waiting to disinfect the sole direction, jet orifice department is provided with the second ultraviolet lamp.

Preferably, an air suction fan is arranged below the dust collection box, the air suction fan is communicated with the inside of the disinfection shoe box body and blows air to the inside of the disinfection shoe box body, and the aperture of the upper surface of the dust collection box is larger than that of the lower surface of the dust collection box.

Preferably, a second ultraviolet lamp and a second catalyst screen plate are arranged in the closed cavity, the second ultraviolet lamp corresponds to the second catalyst screen plate, and a negative ion generator is arranged at the second ultraviolet lamp; and the disinfection fog generated by the disinfection gas generation device is discharged after passing through the second ultraviolet lamp, the second catalyst screen plate and the negative ion generator.

Preferably, the second catalyst screen plates are arranged in a staggered manner to form S-shaped channels, and the negative ion generators are uniformly distributed in the S-shaped channels in a staggered manner; the disinfection fog is discharged into the heating chamber after the S-shaped channel, a far infrared heater is arranged in the heating chamber, and the far infrared heater corresponds to the third catalyst plate.

Preferably, the sterilizing gas generating device is arranged in the sterilizing cavity, and the second ultraviolet lamp, the negative ion generator and the far-infrared heater are arranged in the degradation cavity; a conveying belt is arranged to penetrate through the sterilizing cavity and the degrading cavity, the second ultraviolet lamp and the negative ion generator are arranged above the conveying belt, and the far infrared heater is arranged below the conveying belt; the mist generated by the sterilizing gas generating device enters the degradation cavity through the sterilizing cavity and circularly enters the sterilizing cavity through the far infrared heater.

A method of sterilizing a disinfecting and sterilizing system comprising the steps of:

1) introducing ozone into the closed cavity within a first preset time, and irradiating ultraviolet rays with 185nm and 254nm wavelengths to the closed cavity for first-stage disinfection;

2) after the first-stage disinfection and killing is finished, introducing disinfection fog generated by the disinfection and killing gas generating device into the closed cavity for multiple times within second preset time to carry out second-stage disinfection and killing; or after the first-stage killing is started, introducing disinfection mist generated by the killing gas generating device into the closed cavity, and stopping introducing the disinfection mist before the first-stage killing is finished;

3) if ozone and disinfection fog are introduced in stages, repeating the first-stage killing and the second-stage killing until the repetition times reach the preset times;

4) and after the step 3), heating the closed cavity within a third preset time and irradiating 254nm ultraviolet rays for third-stage killing.

Preferably, the first preset time is 10-40min, the second preset time is 5-10min, and the third preset time is 10-20 min; if the disinfection fog is introduced after the first-stage disinfection is finished, the number of times of introducing the disinfection fog is two, each time lasts for 30-60/s, and the time interval of introducing the disinfection fog twice is 2 min; if the disinfection fog is introduced after the first-stage disinfection is started, the disinfection fog is introduced 10min after the first stage is started, and the introduction time is 10 min.

A control device of a disinfection and sterilization system, the control device comprising a processor and a memory, the memory having stored therein a computer program, the processor being adapted to execute the computer program to carry out the steps of the above-mentioned sterilization method

The invention has the advantages that:

1) according to the invention, ozone is dissolved in water through the aerator pipe to form ozone water, ozone water mist is generated through the ultrasonic atomizer, the ozone water mist is combined with ozone again, and is excited by the ultraviolet lamp to form gas-liquid mixed disinfection dry mist containing active oxygen and hydroxyl radicals, and articles are disinfected and sterilized by utilizing the strong oxidizing property of the disinfection dry mist, so that chemical residues generated by traditional chemical disinfection can be avoided; the ozone and the hydroxyl free radicals are mixed for killing, so that the ozone-hydroxyl radical disinfectant is friendly to human bodies and does not generate side effects;

2) according to different use requirements, the ultraviolet lamp arranged in the sterilizing gas generating device can adopt a 254nm single-band ultraviolet lamp or a 185nm/254nm double-band ultraviolet lamp to respectively play roles in degrading ozone and exciting ozone, and when the concentration of ozone in the device is too high, the 254nm single-band ultraviolet lamp can be adopted to avoid leakage of redundant ozone; if the oxidation function is enhanced, a 185nm/254nm double-waveband ultraviolet lamp can be adopted so as to enhance the oxidation effect, and the device can be flexibly arranged according to different application scenes.

3) The sterilizing gas generating device can be used by combining a closed cavity and a semi-closed cavity, and when the sterilizing gas generating device is used by combining the closed cavity, articles to be sterilized can be directly put into the closed cavity for sterilizing; when the semi-closed cavity is combined, the disinfection fog generated by the disinfection gas generating device is sprayed out of the cavity to disinfect external articles or is applied to disinfection of moving articles; the sterilizing gas generating device is environment-friendly and has wide application range.

4) The sterilizing gas generating device can also be combined with a photoelectric coupling degradation module, namely the combination of the negative ion generator and the ultraviolet lamp, so that redundant ozone generated along with the sterilizing mist can be thoroughly degraded, the hidden danger of ozone leakage is thoroughly eliminated, the overall safety of equipment is improved, and the arrangement of the ultraviolet lamp can also adopt a 254nm single-band ultraviolet lamp or a 185nm/254nm double-band ultraviolet lamp as required, thereby obtaining the function of enhancing oxidation or degrading ozone; photoelectric coupling is a technology which is based on the synergistic effect of photocatalysis and a negative oxygen ion generator, excites a catalyst through high-voltage static electricity and special wave band light waves, adsorbs related reaction atoms and promotes the acceleration of chemical reaction; the technology can generate active free radical particles with higher concentration, act on chemical atoms or biological macromolecules, promote the opening of molecular bonds and promote the denaturation and inactivation of the biological macromolecules, thereby achieving the effects of rapid degradation and disinfection and sterilization.

5) The particle size of the disinfection fog is controllable, the particle diameter of the disinfection fog is controlled to be less than 5 microns by adopting a 40MHz high-amplitude ultrasonic atomizer for ultrasonic atomization, so that the sprayed disinfection fog forms white dry fog, no moist feeling exists when hands of a human body are in contact with the disinfection fog, anhydrous disinfection is achieved, and condensation water drops cannot be formed on the surface of an article when the article is disinfected and sterilized, so that the use of the article is influenced.

Drawings

FIG. 1 is a schematic view of a sterilizing gas generator;

FIG. 2 is a schematic view of the waste transfer cart;

FIG. 3 is a schematic view of a disinfection trash can;

FIG. 4 is a schematic structural view of a spray disinfection vehicle;

FIG. 5 is a schematic diagram of a portable spray sterilizer;

FIG. 6 is a schematic diagram of a dual head spray sterilizer;

FIG. 7 is a schematic view of the fresh fruit and vegetable sterilizer;

FIG. 8 is a schematic view of the construction of the sterilizer for shoe soles;

FIG. 9 is a schematic view of the cold chain cargo sterilization unit;

FIG. 10 is a flow chart of a killing method;

FIG. 11 is another flow chart of killing.

In the figure: 1-a first ozone generator, 2-a second ozone generator, 3-a water tank, 4-an ultrasonic atomizer, 5-a honeycomb aeration pipe, 6-a first ultraviolet lamp, 7-a first catalyst plate, 8-a grid baffle, 9-a closed cavity, 11-a sterilizing gas generating device, 14-a second catalyst screen, 15-a second ultraviolet lamp, 101-a door, 102-an exhaust hole, 104-a hot air blower, 131-an inner cylinder, 132-a collecting bag, 171-an elbow pipe, 181-a water inlet, 183-a water storage tank, 184-a floating ball water level switch, 185-a leakage-proof cover, 186-a hand hole, 187-an infrared sensor, 188-an air jet pipe, 189-a pedal, 191-an electric rolling brush, 192-a dust collecting box and 193-an air suction fan, 201-negative ion generator, 202-heating cavity, 203-far infrared heater, 204-killing cavity, 205-degradation cavity, 206-conveying belt, 207-third catalyst plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The molecular structure of ozone is unstable at normal temperature and normal pressure, the ozone is quickly decomposed into oxygen and single oxygen atoms, the single oxygen atom has strong activity and strong oxidizing capability, and can directly act on bacteria, viruses and volatile organic gases to play a role in sterilization, and the ozone disinfectant is a green disinfectant, the sterilization effect of ozone water can be enhanced by using hydroxyl radicals generated in the process of dissolving ozone in water, the oxidation potential of the hydroxyl radicals is 2.80eV, and is only 2.87eV after fluorine, and the ozone disinfectant has strong oxidizing property, and water vapor can generate the hydroxyl radicals under the synergistic effect of an ultraviolet lamp and a photocatalytic network. Therefore, the invention adopts the ozone, the photocatalysis net plate and the ultraviolet lamp to form a disinfection system without adding a disinfectant or a bactericide, and the disinfection system has the advantages of environmental protection, no chemical residue and the like.

As shown in fig. 1, the sterilizing gas generating device comprises a hydroxyl radical generating part, a mixing part and a reinforcing part, wherein the hydroxyl radical mist generated in the hydroxyl radical generating part enters the mixing part and then is mixed with ozone, the mixing part is communicated with the reinforcing part, so that the mixed mist enters the reinforcing part again, an ultraviolet lamp for exciting and/or degrading ozone is arranged in the reinforcing part, and the direction shown by an arrow in fig. 1 is the generating and flowing direction of the sterilizing mist.

The hydroxyl radical generating part comprises a first ozone generator 1, the first ozone generator 1 is connected with a gas mixing device, the gas mixing device comprises an aerator pipe, a jet device or a vortex pump, and one embodiment of the invention is a honeycomb aerator pipe 5; ozone and water generated by the first ozone generator 1 are mixed in a gas mixing device and then form ozone water mist through an atomizing device, wherein the atomizing device is an ultrasonic atomizer; the mixing portion is internally provided with a second ozone generator 2, the enhancing portion comprises a first ultraviolet lamp 6, and the first ultraviolet lamp 6 is arranged corresponding to the first catalyst plate 7.

In this embodiment, the honeycomb aeration pipe 5 is placed in the water tank 3, the ultrasonic atomizer 4 is arranged in the water tank 3, the honeycomb aeration pipe 5 is connected with the first ozone generator 1, air enters the first ozone generator 1 of the free radical mist production device through the air inlet, the first ozone generator 1 is a tubular ozone generator, the air is converted into low-concentration ozone through the tubular ozone generator, and then the ozone is introduced into the water tank 3 through the honeycomb aeration pipe, so that the contact area between the ozone and water can be greatly increased, the generated ozone is dissolved in the water to the maximum extent to form ozone water, and the ozone concentration (the concentration is less than 20 mg/m) dissipated in the air is reduced (the concentration is less than 20 mg/m)³) (ii) a The ozone water is atomized into ozone water mist under the action of the 40MHz high-amplitude ultrasonic atomizer 4, and the particle size of the ozone water mist is controlled by controlling the oscillation frequency so as to ensure that the particle size of the ozone water mist<5 μm, white dry fog is formed; the white dry fog is scattered in the device and is fused with the ozone generated by the second ozone generator 2 again, the second ozone generator 2 adopts a tubular ozone generator, and the ozone content in the disinfection fog is further improved after being fused again, so that a large amount of hydroxyl radicals and oxygen radicals can be generated, and the ozone concentration is reduced simultaneously<60mg/m ³Oxidation is enhanced by a large number of hydroxyl and oxygen radicals.

The gas mixing device can also be a jet ejector or a vortex pump, ozone and water are mixed and then atomized by an atomizing device which can be directly connected with a pipeline to form ozone water mist, the atomizing device is the prior art and is not described herein any more, and the atomizing device used in the invention is an ultrasonic atomizer 4.

The sterilizing gas generating device is internally provided with a first ultraviolet lamp 6, the first ultraviolet lamp 6 is arranged corresponding to the first catalyst plate 7, the fused sterilizing mist is excited by the first ultraviolet lamp 6 to enhance oxidation or degrade redundant ozone, when a 254nm single-band ultraviolet lamp is adopted, the sterilizing gas generating device has the function of degrading ozone and can degrade the generated redundant ozone, the degraded ozone contains hydroxyl radicals, so that the sterilizing mist can achieve the sterilizing purpose and can not leak to influence the human body; when the 185nm/254nm double-waveband ultraviolet lamp is adopted, the ultraviolet lamp has the function of exciting ozone, can excite more ozone, enables the disinfection mist to contain ozone and hydroxyl free radicals at the same time, enhances the oxidation disinfection effect, can be matched with an ozone degradation device again at the moment, degrades the residual ozone after disinfection, enables the ozone to reach the standard and be discharged, and cannot influence the environment and human bodies.

The further technical scheme is that the first ozone generator 1 and the water tank 3 are arranged in the generation cavity 11, and the first ultraviolet lamp 6 and the first catalyst plate 7 are arranged in the enhancement cavity 12; a plurality of grid baffles 8 are arranged in the free radical water mist generating device, the grid baffles 8 are arranged in a staggered mode to form an S-shaped mixing channel, the S-shaped mixing channel can enable ozone and ozone water mist to be mixed again, mixing capacity of the ozone in the ozone water mist can be improved, and accordingly sterilizing capacity of the sterilizing mist is improved; the inlet of the S-shaped mixing channel is respectively communicated with the outlet of the generating cavity 11 and the second ozone generator 2, and the outlet of the S-shaped mixing channel is communicated with the inlet of the enhancing cavity 12.

The following table shows the comparison of the ozone concentration and the killing ability at different positions detected in different examples by using a 185nm/254nm dual-band ultraviolet lamp, a first ozone generator 1 of 2-5g and a second ozone generator 2 of 10 g. The first ozone generator 1 and the second ozone generator 2 can be replaced according to actual use requirements so as to meet the concentration of the generated ozone.

In the table, the grade of the oxidation ability is 1-5, the grade 1 has the strongest oxidation ability, namely the best killing ability, and the grading method of the oxidation ability is as follows:

the test paper is placed in the device for oxidation treatment, the treated oxidation test paper is compared with the color before placement, a color difference meter is used for measurement, color difference judgment is carried out according to color difference classification in national standard ' national measurement and verification regulation of the people's republic of China ', the oxidation capability is stronger when the color is lighter, and the oxidation capability is weaker when the color is darker.

3% of hydrogen peroxide is adopted for atomization and disinfection, oxidation grading is carried out by an oxidation capacity grading method, the oxidation capacity of atomization and disinfection of 3% of hydrogen peroxide is graded into 2 grades by color difference judgment, and the surface disinfection and killing rate of the unit bacillus subtilis is 98.62%.

The sterilizing gas generating device can be applied to various occasions and combined with various devices to form a sterilizing and sterilizing system which can be used in combination with a closed space to place an article to be sterilized in the closed space so that the sterilizing fog can sterilize and sterilize the article, and when the sterilizing and sterilizing system is used, the positive pressure of the closed space can be enhanced through an air compressor, so that the permeation of the sterilizing fog in waste is enhanced, and the positive pressure is 100-600 Pa; or can be used in combination with semi-closed/non-closed space, so that the disinfection mist is sprayed out to disinfect and kill the surrounding environment, articles or human body.

Example one

The sterilizing gas generating device is arranged in the closed cavity 9, and a gas outlet of the sterilizing gas generating device is communicated with the closed cavity 9.

As shown in fig. 2, the waste transfer vehicle is particularly suitable for medical waste, the closed cavity 9 is a carriage arranged at the rear part of the transport vehicle, articles to be sterilized are contained in the carriage, a carriage door 101 is arranged on the carriage, and a carriage door electromagnetic lock 102 is arranged on the carriage door 101; an ozone sensor is arranged in the carriage 10, an exhaust hole is formed in the upper side of the carriage, and a hot air heater 104 is arranged in the carriage and close to the exhaust hole.

The ozone sensor is used for detecting the concentration of ozone, a safety critical value which does not cause human body injury is set, and if the ozone sensor detects that the concentration of ozone in the carriage 10 is higher than the safety critical value, the electromagnetic lock of the carriage door is controlled by the system to generate magnetic force to lock the carriage door 101; if the door 101 needs to be opened when the concentration of ozone in the car 10 is higher than the safety critical value, the system will start the hot air blower 104 to blow out hot air, so that the ozone is decomposed and discharged through the exhaust hole 102, it can be understood that an exhaust fan and an electromagnetic valve are arranged at the exhaust hole 102, so that the exhaust hole 102 is opened and exhausted, and the concentration of ozone is reduced to below the safety critical value.

Example two

As shown in fig. 3, the sealed cavity 9 is a disinfection cabinet, an inner cylinder 131 is arranged in the disinfection cabinet, a collection bag 132 is sleeved in the inner cylinder 131, and articles to be disinfected and killed are contained in the collection bag 132; the radical mist generating device is disposed at a lower side of the sterilizing cabinet, and the radical mist generated by the radical mist generating device enters the collecting bag 132 through a gap between the inner tube 131 and a side wall of the sterilizing cabinet.

The sterilizer of this embodiment is particularly useful for medical waste, and during the use, will wait to kill the article and put into collection bag 132, put into collection bag 132 in the back, close the lid or the door of sterilizer, when necessary, can adopt hasp or magnetism to inhale the mode between lid or door and the sterilizer and keep encapsulated situation for during disinfection fog enters into collection bag 132, disinfect the article wherein, wait to kill after accomplishing, directly will collect bag 132 whole take out abandon can, the collection bag 132 of renewal again.

EXAMPLE III

The embodiment of combining the sterilizing gas generating device with the semi-closed space comprises spraying the sterilizing mist generated by the sterilizing gas generating device,

the side wall of the closed cavity 9 is provided with an air jet, the air jet of the portable spray sterilizer with air jet flavor is provided with an exhaust fan, and the sterilizing mist can be sprayed out from the air jet to sterilize and kill the surrounding environment or human body parts.

A second ultraviolet lamp 15 and a second catalyst screen 14 are arranged in the closed cavity 9, and the second ultraviolet lamp 15 corresponds to the second catalyst screen 14; or a second ultraviolet lamp 15 is arranged in the closed cavity 9. Through the arrangement of the second ultraviolet lamp 15 and the second catalyst screen plate 14, the generated ozone can be degraded and also can be excited, so that the oxidizing and sterilizing capability is improved.

As shown in fig. 4, the closed cavity 9 is a cart, and is a spray disinfection cart, and can spray disinfection mist to the surrounding air, so as to kill the surrounding environment, an air nozzle is arranged on the side wall of the cart, the second ultraviolet lamp 15 and the second catalyst screen 14 are arranged at the air nozzle and cover the whole air nozzle, the air nozzle is connected with an elbow 171, and the elbow 171 can rotate relative to the air nozzle.

The bent pipe 171 can be a thick open pipe, the direction of spraying can be changed by changing the direction of the bent pipe 171, the use requirements in different directions can be met, and large-area disinfection and killing can be carried out, so that the spread of viruses in the air is reduced, and the device can also be directly applied to the ground to disinfect and kill germs on the ground by the walking of a trolley. The elbow 171 can be detached, and can be replaced with various types of nozzles such as a double-head nozzle, a triple-head nozzle, and the like according to requirements.

Or a water storage tank can be arranged at the top of the trolley, and water is supplemented to the water tank 3 in the sterilizing gas generating device through the water storage tank.

Example four

As shown in fig. 5, the closed cavity 9 is a box body, has small volume, can be made into a portable spray sterilizer, is convenient to lift and place, and can be directly placed in a hospital or a market for sterilizing hands of people.

The second ultraviolet lamp 15 and the second catalyst screen plate 14 are arranged at the air jet; a water inlet 181 is arranged beside the air injection port, the water inlet 181 is communicated with a water storage tank 183, the water storage tank 183 is communicated with a water tank 3 of the sterilizing gas generating device, the water storage tank 183 is arranged above the water tank 3, and a floating ball water level switch 184 is arranged in the water tank 3; and the exhaust fan at the air jet is connected with the switch device.

The switch device can adopt an electric switch, such as an infrared inductor, and also can adopt a mechanical switch; when the sterilizer is used, a user only needs to stretch hands to the upper part of the air jet port, and then the internal circuit of the sterilizer is switched on to generate sterilization mist to blow to the hands of the user to sterilize the hands of the user.

The portable spray sterilizer can also be used as an indoor air evolution device, and can be discharged from the air jet after being mixed with the disinfection mist inside the sterilizer and sterilized by continuously sucking indoor air.

EXAMPLE five

As shown in fig. 6, a hand washing sterilizer is different from the fifth embodiment in that the air outlet is arranged at the upper side of the box body, an air suction port is arranged beside the air outlet in this embodiment, the air suction port is communicated with the interior of the box body, the upper ends of the air outlet and the air suction port are covered with a leakage-proof cover 185, a hand hole 186 is arranged on the leakage-proof cover 185, and the switching device is an infrared sensor 187.

During the use, the user only needs to stretch into leak protection cover 185 with the hand from hand hole 186 department, trigger infrared inductor 187 this moment, produce disinfection fog, finally blow user's hand, disinfect to user's hand, fog after disinfection is inhaled inside the sterilizer through the induction port again, thereby make the disinfection's of whole device process in the confined space, the air jet spouts disinfection fog, the fog after the rethread induction port will disinfect is collected, not only can using water wisely and the energy consumption, and no ozone reveals, can not cause secondary pollution to the environment.

EXAMPLE six

As shown in fig. 7, the difference between the fifth embodiment and the fourth embodiment is that in the present embodiment, a section of gas injection pipe 188 extending outward is connected to the gas injection port, and the switch device is a pedal 189 disposed at the bottom of the box body. The gas injection pipe 188 can be arranged according to the required length, the device is started by stepping on the pedal 189, and the disinfection mist is generated, so that the disinfection mist is sprayed out of the gas injection pipe 188, and the gas injection pipe 188 can be a flexible pipe or a hard pipe.

This embodiment is particularly useful for disappearing to fruit vegetables, giving birth to the bright and killing, because the fog is dry fog, does not have the wet sense, can not lead to the fact the influence to the surface that the fruit vegetables give birth to the bright for remaining drop of water influences the quality guarantee period that the fruit vegetables gave birth to the bright. When the sterilizing bag is used, an operator can directly hold the bag for containing food by hands, the air injection pipe 188 is inserted from the bag opening part, the pedal 189 is stepped to generate sterilizing mist for sterilizing, and after sterilizing is completed, stepping is stopped and the bag opening is directly fastened.

EXAMPLE seven

As shown in fig. 8, the shoe sterilizing box with the sealed cavity 9 is a shoe sole sterilizing device, the shoe sterilizing box body is rotatably connected with an electric rolling brush 191, the electric rolling brush 191 is matched with a shoe sole to be sterilized, a dust collecting box 192 is arranged in the shoe sterilizing box body and below the electric rolling brush 191, an air jet is arranged on the side surface of the electric rolling brush 191, the air blowing direction of the air jet faces the direction of the shoe sole to be sterilized, and a second ultraviolet lamp 15 is arranged at the air jet.

The electric rolling brush 191 can be a hard brush or a sponge brush, when a user places shoes on the electric rolling brush 191, the electric rolling brush is opened in a manual switch mode or an infrared induction mode, at the moment, the disinfection aerosol is automatically generated to disinfect and sterilize the soles of the user, and dust and dirt on the soles of the user are absorbed into the dust collecting box 192 through the electric rolling brush 191, so that the cleaning and disinfecting effects are achieved.

Example eight

The difference from the seventh embodiment is that an air suction fan 193 is arranged below the dust collecting box 192, the air suction fan 193 is communicated with the inside of the disinfection shoe box body and blows air to the inside of the disinfection shoe box body, and the aperture of the upper surface of the dust collecting box 192 is larger than that of the lower surface.

The suction fan 193 sucks the dust and polluted air of the sole into the dust collecting box 192 together, the dust is collected by the dust collecting box 192, the polluted air enters the device and is mixed with the disinfection fog, the disinfection fog can sterilize the polluted air with germs, the processed clean air flows through the second ultraviolet lamp 15 again, blows to the sole from the air jet port, and sterilizes the sole, so that the circulating disinfection fog is formed.

Example nine

As shown in fig. 9, when the sterilizing and disinfecting device is large, such as a cargo disinfecting device, the disinfecting and disinfecting gas generating device may be used in combination with a photo-coupling device, and the generated surplus ozone is degraded by the photo-coupling device, thereby reaching the discharge standard. The photoelectric coupling device is a technology which is based on the synergistic effect of photocatalysis and a negative oxygen ion generator, excites a catalyst through high-voltage static electricity and special wave band light waves, adsorbs related reaction atoms and promotes the acceleration of chemical reaction; the technology can generate active free radical particles with higher concentration, act on chemical atoms or biological macromolecules, promote the opening of molecular bonds and promote the denaturation and inactivation of the biological macromolecules, thereby achieving the effects of rapid degradation and disinfection and sterilization.

The photoelectric coupling device comprises a second ultraviolet lamp 15 and a second catalyst screen 14 which are arranged in the closed cavity 9, wherein the second ultraviolet lamp 15 corresponds to the second catalyst screen 14, and a negative ion generator 201 is arranged at the position of the second ultraviolet lamp 15; the disinfection fog that the gas generating device that disappears produced is discharged behind second ultraviolet lamp 15, second catalyst otter board 14 and anion generator 201, and anion generator 201 has the adsorption, can adsorb unnecessary ozone in anion generator 201's surface to strengthen the ultraviolet lamp to ozone's degradation ability.

During the use, the goods at first through the disinfection of disinfection fog, disinfection fog disinfection completion back, unnecessary high concentration ozone can be degraded through the degradation in coordination of second ultraviolet lamp 15, second catalyst otter board 14 and anion generator 201 to when guaranteeing to transport the goods from the exit, there is not revealing and spilling over of ozone.

Example ten

The difference from the ninth embodiment is that in the present embodiment, the second catalyst mesh plates 14 are arranged in a staggered manner to form S-shaped channels, and the negative ion generators 201 are uniformly distributed in the S-shaped channels in a staggered manner; the disinfection fog is discharged into the heating cavity 202 through the S-shaped channel, a far infrared heater 203 is arranged in the heating cavity 202, and the far infrared heater 203 corresponds to the third catalyst plate 203.

The S-shaped channel is arranged, so that the disinfection mist can be degraded more completely, part of residual ozone can be generated in the degraded disinfection mist, ozone degradation is further performed through the heating cavity 202, and the degraded disinfection mist can be directly discharged into the air.

EXAMPLE eleven

The difference between the tenth embodiment and the ninth embodiment is that the sterilizing gas generating device is arranged in the sterilizing chamber 204, and the second ultraviolet lamp 15, the anion generator 201 and the far infrared heater 203 are arranged in the degradation chamber 205; a conveyer belt 206 is arranged to penetrate the sterilizing cavity 204 and the degrading cavity 205, the second ultraviolet lamp 15 and the anion generator 201 are arranged above the conveyer belt 206, and the far infrared heater 203 is arranged below the conveyer belt 206; the mist generated by the sterilizing gas generating device enters the degradation cavity 205 through the sterilizing cavity 204 and circularly enters the sterilizing cavity 204 through the far infrared heater 203.

When the device is used, goods enter the sterilizing device through the conveying belt 206, firstly pass through the sterilizing cavity 204, are sterilized for the first time through the sterilizing fog generated by the sterilizing gas generating device, then enter the degrading cavity 205, and degrade redundant ozone through the degrading cavity 205, so that the degraded ozone further generates active free radicals, and the degraded fog is blown to the direction of the goods to sterilize the goods for the second time; the fog after the second disinfection and sterilization passes through the infrared heater 203 from the lower part of the conveyer belt 206 and is finally heated and degraded, the temperature reached by the infrared heater 203 is 40-50 ℃, and the fog circularly enters the disinfection and sterilization cavity 204 to participate in the new disinfection and sterilization. The embodiment is particularly suitable for killing cold chain goods.

The following table shows the comparison of the degradation capability of ozone when the second uv lamp 15, the anion generator 201, and the far infrared heater 203 are used for ozone degradation by the photocoupling device, and when the anion generator is used and the anion generator is not used.

It can be seen from the above table that when the anion generator is adopted, the ozone degradation can be more complete, the residual amount of ozone is lower, the discharge can reach the standard, and the influence on the human body can not be caused at the goods outlet.

Example twelve

2) after the first-stage disinfection and killing is finished, introducing disinfection fog generated by the disinfection and killing gas generating device into the closed cavity for multiple times within second preset time to carry out second-stage disinfection and killing;

3) repeating the first-stage killing and the second-stage killing until the repetition times reach preset times, wherein the preset times can be set according to the hazard grade of the epidemic-prevention waste, and the higher the hazard grade is, the more the preset times are;

4) after the step 3), heating the closed cavity within a third preset time and irradiating 254nm ultraviolet rays for a third-stage killing; the heating can raise the temperature in the space, accelerate the decomposition of ozone, so as to achieve the purpose of eliminating ozone, and can also generate new active free radicals, and the heating and the irradiation of ultraviolet rays can further inactivate the residual viruses, thereby further strengthening the killing effect. In this embodiment, the enclosed space is heated by an infrared heater.

And after the third-stage killing is finished, collecting the ozone concentration of the closed space, controlling the electric control door lock to unlock when the ozone concentration is lower than a safety threshold, and repeating the third-stage killing when the ozone concentration is not lower than the safety threshold.

Wherein the ozone concentration can be acquired by a corresponding sensor. The safety threshold can be set according to actual needs, for example, 2 ppm. When the ozone concentration is lower than the safety threshold, the electric control door lock can be unlocked, the closed space can be opened, otherwise, the third-stage killing is repeated until the ozone concentration is lower than the safety threshold.

Referring to fig. 10, a flowchart of the killing method of the present embodiment is shown, in which the first preset time is 10 minutes, the second preset time is 5-10 minutes, and the third preset time is 10-20 minutes. The number of times of introducing the disinfection fog is 2, the fourth preset time is 30-60 seconds, and the fifth preset time is 2 minutes. In one specific application, the first predetermined time is 10 minutes, the second predetermined time is 5 minutes, and the third predetermined time is 10 or 15 minutes. The number of times of introducing the disinfection mist is 2, the fourth preset time is 30 seconds, and the fifth preset time is 2 minutes. The preset times can be selected from three types, namely 1 time, 3 times and 7 times, for the user, the three types of preset times respectively correspond to three disinfection modes, namely a mild disinfection mode, a moderate disinfection mode and a severe disinfection mode, the third preset time is 10 minutes in the mild disinfection mode, and the third preset time is 15 minutes in the moderate disinfection mode and the severe disinfection mode.

When the user operates the killing device, the killing mode needs to be selected firstly, and if the killing device does not select the killing mode, the killing device selects the mild killing mode by default.

The total time of the mild killing mode is 40 minutes, and the process comprises the following steps:

introducing ozone into the sealed space from 0 to 10 minutes and irradiating the sealed space with ultraviolet rays with the wavelength of 185nm and the wavelength of 254nm for first-stage disinfection;

from 10 minutes to 15 minutes, introducing disinfection fog into the closed space for 2 times to perform second-stage disinfection, wherein the duration of introducing the disinfection fog every time is 30 seconds, and the disinfection fog is suspended for 2 minutes after introducing the disinfection fog every time;

repeating 1 time of first stage killing and second stage killing from 15 minutes to 30 minutes;

and (3) heating the sealed space and irradiating ultraviolet rays with the wavelength of 254nm for the third-stage sterilization in 30-40 minutes.

The moderate killing mode takes 1 hour and 15 minutes totally, and the process is as follows:

introducing ozone into the sealed space from 0 to 10 minutes and irradiating the sealed space with ultraviolet rays with the wavelength of 185nm and the wavelength of 254nm to perform first-stage disinfection;

repeating the first stage killing and the second stage killing 3 times from the 15 th minute to the 60 th minute;

heating the sealed space and irradiating 254nm ultraviolet ray for the third stage sterilization in the 60-75 min.

The total time of the severe killing mode is 2 hours and 15 minutes, and the process is as follows:

from 10 minutes to 15 minutes, introducing disinfection fog into the closed space for 2 times to perform second-stage disinfection, wherein the duration of introducing the disinfection fog every time is 30 seconds, and the hydroxyl radical water fog is suspended for 2 minutes after introducing the hydroxyl radical water fog every time;

repeating the first stage killing and the second stage killing 7 times from the 15 th minute to the 120 th minute;

heating the sealed space and irradiating 254nm ultraviolet ray for the third stage sterilization from 120 min to 135 min.

The same amount of simulated waste was subjected to the sterilization test using the sterilization method of this example and the conventional ozone sterilization method, and bacillus subtilis (ATCC6633) was used as the test strain in accordance with "sterilization specification" 2002 edition by ministry of health. Taking spore suspension, and adjusting the concentration of the bacterial liquid to the bacterial content of about 1 × 108 cfu/mL-5 × 108cfu/mL according to the counting result. The sterilized carrier sheet (filter paper or plastic fabric) is spread in a sterile plate, and bacterial liquid is dripped one by one. The drop amount of the bacteria is 10 μ L per tablet. Negative control plus 10. mu.LPBS. The bacterial tablets are placed in an aseptic plate, then the sterile plate is placed in a closed space to be subjected to sterilization treatment for different time, then the spore killing rate is tested and calculated, and the sterilization test data are shown in the following table.

The sterilization method of the present embodiment and the sterilization test data of the conventional ozone sterilization method

As can be seen from the table, under the condition of the same ozone concentration (45ppm) and killing time, the killing method in the embodiment has a much higher killing rate on bacillus on the surfaces of filter paper and fabric, and the result also shows the strong sterilizing capability of the sterilizing mist, and the sterilizing mist can well diffuse and permeate into the surface of the fabric to deeply kill bacteria; the conventional ozone disinfection method has insufficient killing capacity on bacillus, particularly poor killing capacity on bacteria on the surface of plastic fabric, insufficient permeability, and can improve the killing rate only by prolonging the killing time and the ozone concentration, even if the killing rate on the bacteria on the surface of the fabric is not high. In addition, under the condition of prolonging the sterilization time, the embodiment can realize 100% sterilization of the bacillus, and the ozone concentration is reduced to be below the safe concentration before the closed space is opened; however, a large amount of ozone still remains after the conventional ozone disinfection method is finished, and once the closed space is opened, the safety of operators is affected.

EXAMPLE thirteen

The difference from the twelfth embodiment is that, in this embodiment, in order to simultaneously introduce the ozone and the sterilizing mist generated by the sterilizing gas generating device within the first preset time, referring to fig. 11, a flowchart of this embodiment is shown, and the steps are as follows:

2) after the first-stage killing is started, introducing disinfection mist generated by a killing gas generating device into the closed cavity, and stopping introducing the disinfection mist before the first-stage killing is finished;

3) and after the first-stage disinfection is finished, heating the closed space within a second preset time and irradiating 254nm ultraviolet rays for second-stage disinfection.

In the specific implementation of the processing method of this embodiment, the first preset time is 20-40 minutes, and the second preset time is 20 minutes. During the first-stage killing, the duration of the disinfecting mist is 10 minutes. The disinfecting mist may be introduced 10 minutes after the start of the first stage of disinfection.

The user need not too much operation when operation equipment of killing, only need open the power, selects the start button of killing, and the equipment of killing can accomplish the killing automatically, and the time of killing is 1 hour, and its flow is:

introducing ozone into the sealed space from 0 to 40 minutes and irradiating ultraviolet rays with the wavelength of 185nm and the wavelength of 254nm in the space for first-stage disinfection;

introducing disinfection fog into the space from 10 minutes to 20 minutes;

from 40 minutes to 60 minutes, the space is heated and irradiated with ultraviolet rays having a wavelength of 254nm to perform second-stage sterilization.

The same spore suspension samples as in example thirteen were subjected to the killing method of this example, and the measured data are shown in the following table.

The treatment method of the present embodiment and the sterilization test data of the conventional ozone sterilization method

Example fourteen

A control device of a disinfection and sterilization system, the control device comprising a processor and a memory, the memory having stored therein a computer program, the processor being adapted to execute the computer program to implement the steps of the sterilization method described above.

The processor may be a Central Processing Unit (CPU). Or may be an integrated circuit chip having computing (including determining) and controlling capabilities, or the processor may be a general purpose processor, an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, or discrete hardware components, etc., and is not limited in this respect. A general purpose processor may be a microprocessor or any conventional processor or the like.

The memory may be any electronic, magnetic, optical, or other physical storage device that can contain or store information such as executable instructions, data, and the like. For example, the Memory may include RAM (Random Access Memory), Volatile Memory, NVM (Non-Volatile Memory), flash Memory, a storage drive (e.g., a hard disk drive), a solid state drive, any type of storage disk (e.g., an optical disk, a dvd, etc.), or similar storage medium, or a combination thereof.

The above embodiments are preferred embodiments, it should be noted that the above preferred embodiments should not be considered as limiting the invention, and the scope of the invention should be determined by the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.

Claims

A sterilizing gas generating apparatus, characterized by: the ozone generation device comprises a hydroxyl radical generation part, a mixing part and an enhancement part, wherein hydroxyl radical mist generated in the hydroxyl radical generation part enters the mixing part and then is mixed with ozone, the mixing part is communicated with the enhancement part, so that the mixed mist enters the enhancement part again, and an ultraviolet lamp used for exciting and/or degrading ozone is arranged in the enhancement part.
A sterilant gas generating device according to claim 1, further comprising: the hydroxyl radical generating part comprises a first ozone generator (1), the first ozone generator (1) is connected with the gas mixing device, ozone and water generated by the first ozone generator (1) are mixed in the gas mixing device, and then the ozone water mist is formed through the atomizing device; be equipped with second ozone generator (2) in the mixing portion, the reinforcing portion includes first ultraviolet lamp (6), first ultraviolet lamp (6) and first catalyst board (7) correspond the setting.
A sterilizing gas-generating apparatus as defined in claim 1 or 2, wherein: the gas mixing device is a honeycomb aeration pipe (5), the honeycomb aeration pipe (5) is arranged in a water tank (3), an atomizing device is arranged in the water tank (3), and the atomizing device is an ultrasonic atomizer; a plurality of grid baffles (8) are arranged in the mixing part, and the grid baffles (8) are arranged in a staggered manner to form a mixing channel; the inlet of the mixing channel is respectively communicated with the hydroxyl radical generating part and the outlet of the second ozone generator (2), and the outlet of the mixing channel is communicated with the inlet of the reinforcing part; the first ultraviolet lamp (6) is a 254nm single-band ultraviolet lamp or a 185nm/254nm double-band ultraviolet lamp.
A disinfecting and sterilizing system, characterized in that: the sterilizing and disinfecting device comprises a sterilizing and disinfecting gas generating device (11), wherein the sterilizing and disinfecting gas generating device (11) is arranged in the closed cavity (9) or is communicated with the closed cavity (9), and the sterilizing mist generated by the sterilizing and disinfecting gas generating device (11) is filled in the closed cavity (9).
The disinfecting and sterilizing system of claim 4, wherein: the closed cavity (9) is a carriage (10) arranged at the rear part of the transport vehicle, articles to be sterilized are contained in the carriage, a carriage door (101) is arranged on the carriage, and a carriage door electromagnetic lock is arranged on the carriage door (101); an ozone sensor is arranged in the carriage (10), an exhaust hole (102) is formed in the upper side of the carriage, and an air heater (104) is arranged in the carriage and close to the exhaust hole.
The disinfecting and sterilizing system of claim 4, wherein: the sealed cavity (9) is a disinfection cabinet, an inner cylinder (131) is arranged in the disinfection cabinet, a collection bag (132) is sleeved in the inner cylinder (131), and articles to be disinfected and killed are contained in the collection bag (132); the sterilizing gas generating device (11) is arranged at the lower side of the sterilizing cabinet, and the free radical mist generated by the sterilizing gas generating device (11) enters the collecting bag (132) through a gap between the inner cylinder (131) and the side wall of the sterilizing cabinet.
The disinfecting and sterilizing system of claim 4, wherein: an air jet is arranged on the side wall of the closed cavity (9), an exhaust fan is arranged at the air jet, a second ultraviolet lamp (15) and a second catalyst screen (14) are arranged in the closed cavity (9), and the second ultraviolet lamp (15) corresponds to the second catalyst screen (14); or a second ultraviolet lamp (15) is arranged in the closed cavity (9).
The disinfecting and sterilizing system of claim 7, wherein: the sealed cavity (9) is a trolley, an air jet is arranged on the side wall of the trolley, the second ultraviolet lamp (15) and the second catalyst screen plate (14) are arranged at the air jet and cover the whole air jet, the air jet is connected with the bent pipe (171), and the bent pipe (171) can rotate relative to the air jet.
The disinfecting and sterilizing system of claim 7, wherein: the closed cavity (9) is a box body, and the second ultraviolet lamp (15) and the second catalyst screen plate (14) are arranged at the air jet; a water inlet (181) is arranged beside the air jet, the water inlet (181) is communicated with a water storage tank (183), the water storage tank (183) is communicated with a water tank (3) of the sterilizing gas generating device, the water storage tank (183) is arranged above the water tank (3), and a floating ball water level switch (184) is arranged in the water tank (3); and the exhaust fan at the air jet is connected with the switch device.
The disinfecting and sterilizing system of claim 9, wherein: the jet orifice sets up the upside at the box, the other induction port that is provided with of jet orifice, induction port and the inside intercommunication of box, jet orifice and induction port upper end cover have leak protection cover (185), be provided with hand hole (186) on leak protection cover (185), switching device is infrared inductor (187).
The disinfecting and sterilizing system of claim 9, wherein: the air jet port is connected with an air jet pipe (188) extending outwards, and the switch device is a pedal (189) arranged at the bottom of the box body.
The disinfecting and sterilizing system of claim 7, wherein: the shoe disinfection box is characterized in that the disinfection shoe box body is provided with an electric rolling brush (191) in a rotating mode, the electric rolling brush (191) is matched with a sole to be disinfected, a dust collecting box (192) is arranged below the electric rolling brush (191) in the disinfection shoe box body, an air jet is arranged on the side face of the electric rolling brush (191), the air blowing direction of the air jet faces the direction of the sole to be disinfected, and a second ultraviolet lamp (15) is arranged at the air jet.
The sanitization system of claim 12, wherein: an air suction fan (193) is arranged below the dust collection box (192), the air suction fan (193) is communicated with the inside of the disinfection shoe box body and blows air to the inside of the disinfection shoe box body, and the aperture of the upper surface of the dust collection box (192) is larger than that of the lower surface.
The disinfecting and sterilizing system of claim 4, wherein: a second ultraviolet lamp (15) and a second catalyst screen plate (14) are arranged in the closed cavity (9), the second ultraviolet lamp (15) corresponds to the second catalyst screen plate (14), and a negative ion generator (201) is arranged at the second ultraviolet lamp (15); the disinfection fog generated by the disinfection gas generating device is discharged after passing through the second ultraviolet lamp (15), the second catalyst screen (14) and the negative ion generator (201).
The disinfecting and sterilizing system of claim 14, wherein: the second catalyst screen plates (14) are arranged in a staggered mode to form S-shaped channels, and the negative ion generators (201) are uniformly distributed in the S-shaped channels in a staggered mode; the disinfection fog is discharged into the heating cavity (202) through the S-shaped channel, a far infrared heater (203) is arranged in the heating cavity (202), and the far infrared heater (203) corresponds to the third catalyst plate (207).
The sanitization system of claim 15, wherein: the sterilizing gas generating device is arranged in a sterilizing cavity (204), and the second ultraviolet lamp (15), the negative ion generator (201) and the far infrared heater (203) are arranged in a degradation cavity (205); a conveying belt (206) is arranged to penetrate through the sterilizing cavity (204) and the degrading cavity (205), the second ultraviolet lamp (15) and the negative ion generator (201) are arranged above the conveying belt (206), and the far infrared heater (203) is arranged below the conveying belt (206); the mist generated by the sterilizing gas generating device enters the degradation cavity (205) through the sterilizing cavity (204) and circularly enters the sterilizing cavity (204) through the far infrared heater (203).
A disinfection method of a disinfection and disinfection system is characterized in that: the method comprises the following steps:

1) introducing ozone into the closed cavity within a first preset time, and irradiating ultraviolet rays with 185nm and 254nm wavelengths to the closed cavity for first-stage disinfection;

2) after the first-stage disinfection and killing is finished, introducing disinfection fog generated by the disinfection and killing gas generating device into the closed cavity for multiple times within second preset time to carry out second-stage disinfection and killing; or after the first-stage killing is started, introducing the disinfection fog generated by the killing gas generating device into the closed cavity, and stopping introducing the disinfection fog before the first-stage killing is finished;

3) if ozone and disinfection fog are introduced in stages, repeating the first-stage killing and the second-stage killing until the repetition times reach the preset times;

4) and after the step 3), heating the closed cavity within a third preset time and irradiating 254nm ultraviolet rays for third-stage killing.
A method of sterilizing a disinfecting and sterilizing system as recited in claim 17, characterized in that: the first preset time is 10-40min, the second preset time is 5-10min, and the third preset time is 10-20 min; if the disinfection fog is introduced after the first-stage disinfection is finished, the times of introducing the disinfection fog are two times, each time lasts for 30-60s, and the time interval between the two times of introducing the disinfection fog is 2 min; if the disinfection fog is introduced after the first-stage disinfection is started, the disinfection fog is introduced 10min after the first stage is started, and the introduction time is 10 min.
A control device of a disinfection and sterilization system is characterized in that: the control device comprises a processor and a memory, in which a computer program is stored, the processor being adapted to execute the computer program to carry out the steps of the killing method according to claim 17 or 18.