WO2021170029A1

WO2021170029A1 - Disinfection and sterilization system and sterilization method

Info

Publication number: WO2021170029A1
Application number: PCT/CN2021/077844
Authority: WO
Inventors: 唐昶宇; 罗晓阳; 刘颖彘; 邵虹; 刘彤; 陈勇前; 胡丹
Original assignee: 中物院成都科学技术发展中心
Priority date: 2020-02-28
Filing date: 2021-02-25
Publication date: 2021-09-02
Also published as: CN114450038A

Abstract

A disinfection and sterilization system and a sterilization method. The disinfection and sterilization system is based on a sterilization gas generating apparatus (11). The sterilization gas generating apparatus (11) comprises a hydroxyl radical generating part, a mixing part, and an enhancing part. Hydroxyl radical mist generated in the hydroxyl radical generating part is introduced into the mixing part and then mixed with ozone. The mixing part is in communication with the enhancing part so that the mixed mist is further introduced into the enhancing part. A first ultraviolet lamp (6) used for exciting and/or degrading ozone is provided within the enhancing part. The sterilization gas generating apparatus (11) is combined with other apparatus and applied in various different application scenarios for disinfecting and sterilizing the environment and human body. The employment of the mixture of ozone and a hydroxyl radical for sterilization not only provides strong oxidation capability and a great sterilization effect, but also is environmentally and physically friendly, avoids the generation of secondary pollution and side effects, and is broadly applicable.

Description

Disinfection and disinfection system and disinfection method

Technical field

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

Background technique

Ozone has strong oxidizing properties, with an oxidation potential of 2.07V, and can decompose itself into oxygen and oxygen free radicals under certain conditions. The latter has strong oxidizing activity, which can decompose bacteria cells to achieve sterilization purposes, and there is no secondary Pollution residue, easy to prepare, is an ideal green oxidizing agent. Its broad-spectrum sterilization performance is excellent, and it has a fairly strong inactivation ability to all pathogenic propagules, spores, and viruses. The sterilization ability is dozens to hundreds of times stronger than that of chlorine-containing disinfectants, and has been widely recognized by the disinfection industry. However, for ozone to exert its strong oxidative and sterilizing ability, it needs the highest concentration possible. However, high concentrations of ozone will have a destructive effect on the human respiratory system and eye mucosa, resulting in limited use of ozone.

Canada’s Ozonator Environmental Solutions company has developed a complex set of equipment to prepare extremely high-concentration ozone (>2000ppm) for the treatment of medical waste. The sterilization effect is excellent, but the equipment is expensive (above 4 million) and requires extremely high air-tightness of the system. , Once leaked, the hazard is serious.

However, dissolving ozone in water to prepare hydroxyl-free ozone water for disinfection of objects and air bacteria will help reduce the amount of ozone released. At the same time, the oxidation potential of hydroxyl radicals is 2.80eV, which is stronger than ozone. It has a rapid chain reaction with most organic matter, directly mineralizes into carbon dioxide and water, and has a stronger sterilization ability.

The engineering use of highly active hydroxyl radicals still faces two major problems: (1) How to generate high concentrations of hydroxyl radicals at low cost and in large quantities; (2) The life of hydroxyl radicals is short, less than 1 second, how to effectively transmit and diffuse to Germ surface. Currently, the methods used to generate hydroxyl radicals include atmospheric pressure plasma excitation, high-energy ultraviolet light, photocatalytic oxidation, and electrocatalytic oxidation. However, most of the methods used to produce hydroxyl radicals are expensive and have not been able to be made into engineering devices (such as medical waste, cold chain goods, etc.) and automatic control systems for large-scale surface disinfection of objects.

Summary of the invention

In order to solve the problem of residual and secondary pollution caused by chemical disinfection, and the high cost of imported ozone disinfection equipment, the present invention provides a disinfection and disinfection system, which is based on a disinfection gas generating device, Generate strong oxidizing hydroxyl free radicals, and apply the free radical mist production device in various fields of disinfection to meet the disinfection requirements of different fields. In the process of sterilization, the ozone is confined in a closed or semi-enclosed space through a closed or semi-closed space, and the ozone will not leak to the human body during the elimination; and the ultraviolet light can enhance oxidation or degrade ozone. Therefore, the demand for ozone and hydroxyl radicals on different devices is ensured, so that excess ozone will not overflow in the air and cause secondary pollution to the surrounding air.

The technical scheme adopted by the present invention is:

A sterilization gas generating device, comprising a hydroxyl radical generating part, a mixing part and a reinforcing part. The hydroxyl radical mist generated in the hydroxyl radical generating part enters the mixing part and then is mixed with ozone. The mixing part and the reinforcing part are mixed with ozone. Connected, so that the mixed mist enters the enhanced part again, and the ultraviolet light used to excite and/or degrade ozone is arranged in the enhanced part.

Preferably, the hydroxyl radical generating unit includes a first ozone generator, the first ozone generator is connected to a gas mixing device, the ozone and water generated by the first ozone generator are mixed in the gas mixing device, and then passed through the mist The chemical device forms ozone water mist; the mixing part is provided with a second ozone generator, the enhancement part includes a first ultraviolet lamp, and the first ultraviolet lamp is arranged corresponding to the first catalyst plate.

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

A disinfection and disinfection system, comprising a disinfection gas generating device, the disinfection gas generating device is arranged in a closed cavity or connected with the sealed cavity, and the disinfection mist generated by the disinfection gas generating device is filled in the sealed space The interior of the cavity.

Preferably, the airtight cavity is a carriage provided at the rear of the transport vehicle, in which items to be destroyed are contained in the carriage, a door is provided on the carriage, and an electromagnetic lock for the door is provided on the door; An ozone sensor is arranged in the compartment, an exhaust hole is arranged on the upper side of the compartment, and a hot air blower is arranged in the compartment near the exhaust hole.

Preferably, the airtight cavity is a disinfection cabinet, an inner cylinder is arranged in the disinfection cabinet, and a collection bag is sheathed in the inner cylinder, and the collection bag contains items to be disinfected; the free radical water The mist generating device is arranged on the lower side of the sterilization cabinet, and the free radical water mist generated by the free radical water mist generating device enters the collection bag through the gap between the inner cylinder and the side wall of the sterilization cabinet.

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

Preferably, the airtight cavity is a trolley, the side wall of the trolley is provided with an air injection port, the second ultraviolet lamp and the second catalyst screen are arranged at the air injection port and cover the entire air injection port. The air injection port is connected with an elbow, and the elbow can rotate relative to the air injection port.

Preferably, the airtight cavity is a box body, and the second ultraviolet lamp and the second catalyst screen are arranged at the air injection port; a water inlet is provided beside the air injection port, and the water inlet is connected with the water storage tank The water storage tank is in communication with the water tank of the sterilization gas generating device, the water storage tank is arranged above the water tank, and a float water level switch is arranged in the water tank; the exhaust fan at the air injection port is connected with the switch device .

Preferably, the air injection port is provided on the upper side of the box body, an air suction port is provided beside the air injection port, the air suction port is in communication with the inside of the box body, and the upper ends of the air injection port and the air suction port are covered with leak-proof A hand hole is provided on the leak-proof cover, and the switch device is an infrared sensor.

Preferably, a section of the gas injection pipe extending outward is connected to the gas injection port, and the switch device is a pedal provided at the bottom of the box body.

Preferably, in the sealed cavity sterilized shoe box, an electric roller brush is rotatably connected to the sterilized shoe box body, and the electric roller brush is adapted to the sole to be disinfected, and the sterilized shoe box body is located in the electric roller brush. A dust collecting box is arranged below, the air jet is arranged on the side of the electric roller brush, the blowing direction of the air jet faces the direction of the sole to be disinfected, and a second ultraviolet light is arranged at the air jet.

Preferably, an air suction fan is arranged below the dust collection box, and the air suction fan communicates with the inside of the disinfected shoe box body and blows air into the disinfected shoe box body. The upper surface of the dust box has a larger aperture than the bottom surface.的孔孔。 The aperture.

Preferably, a second ultraviolet lamp and a second catalyst mesh plate are arranged in the airtight cavity, the second ultraviolet lamp corresponds to the second catalyst mesh plate, and negative ions are arranged at the second ultraviolet lamp. Generator; the sterilizing mist generated by the sterilizing gas generating device is discharged after passing through the second ultraviolet lamp, the second catalyst mesh plate and the negative ion generator.

Preferably, the second catalyst mesh plates are staggered to form an S-shaped channel, and the negative ion generators are staggered and evenly distributed in the S-shaped channel; the disinfection mist is discharged into the heating chamber through the S-shaped channel, and the heating chamber A far-infrared heater is arranged inside, and the far-infrared heater corresponds to the third catalyst plate.

Preferably, the sterilization gas generating device is arranged in the sterilization cavity, the second ultraviolet light, the negative ion generator and the far-infrared heater are arranged in the degradation cavity; Belt, the second ultraviolet light and the negative ion generator are arranged above the conveyor belt, the far-infrared heater is arranged below the conveyor belt; the mist generated by the sterilizing gas generator enters the degradation chamber through the sterilizing chamber Cavity, and then circulate into the killing cavity through the far-infrared heater.

A disinfection and disinfection method for a disinfection and disinfection system includes the following steps:

1) Pass ozone into the sealed cavity within the first preset time and irradiate the sealed cavity with ultraviolet rays of 185nm wavelength and 254nm wavelength to perform the first stage elimination;

2) After the completion of the first stage of sterilization, pass the sterilization mist generated by the sterilization gas generator into the closed cavity multiple times within the second preset time for the second stage of sterilization; or in the first stage of sterilization; After the killing starts, pass the disinfection mist generated by the killing gas generating device into the sealed cavity, and stop passing the disinfection mist before the end of the first stage of killing;

3) If ozone and disinfection mist are introduced in stages, repeat the first and second stages of sterilization until the number of repetitions reaches the preset number;

4) After step 3) is completed, heat the sealed cavity and irradiate ultraviolet rays with a wavelength of 254 nm within a third preset time to perform a third stage of sterilization.

Preferably, the first preset time is 10-40 min, the second preset time is 5-10 min, and the third preset time is 10-20 min; if the access is completed after the first phase of killing Disinfection mist, the number of times the disinfection mist is introduced is twice, each lasting 30-60/s, and the time interval between two disinfection mist is 2min; if the disinfection mist is introduced after the first stage of disinfection, then The access is 10min after the first stage starts, and the access time is 10min.

A control device for a disinfection and disinfection system, the control device comprising a processor and a memory, and a computer program is stored in the memory, and the processor is used to execute the computer program to implement the steps of the above-mentioned disinfection method

The advantages of the present invention are:

1) The present invention dissolves ozone in water through an aeration tube to form ozone water, and generates ozone water mist through an ultrasonic atomizer. The ozone water mist is combined with ozone again, and is excited by an ultraviolet lamp to form ozone water. Mixed with the gas-liquid disinfection dry mist of hydroxyl free radicals, the strong oxidizing properties of the disinfection dry mist are used to disinfect and sterilize items, which can avoid the chemical residues produced by traditional chemical disinfection; and use ozone and hydroxyl free radicals for disinfection. , It is friendly to the human body and will not produce side effects;

2) The ultraviolet lamp provided in the sterilization gas generating device of the present invention can use a 254nm single-band ultraviolet lamp or a 185nm/254nm dual-band ultraviolet lamp according to different usage requirements to degrade ozone and stimulate ozone respectively. When the ozone concentration in the device is too high, in order to avoid the leakage of excess ozone, a 254nm single-band UV lamp can be used; if it is to enhance the oxidation function, a 185nm/254nm dual-band UV lamp can be used to enhance the oxidation effect. The device can be flexibly set according to different application scenarios.

3) The sterilization gas generating device of the present invention can be used in combination with a closed cavity and a semi-closed cavity. When used in combination with a closed cavity, the object to be sterilized can be directly placed in the closed cavity for sterilization; when combined When the cavity is semi-closed, the disinfection mist generated by the sterilization gas generator is sprayed out of the cavity to sterilize external objects, or used in the sterilization of moving objects; the sterilization gas generator of the present invention is environmentally friendly ,Wide range of applications.

4) The sterilizing gas generating device of the present invention can also be combined with a photoelectric coupling degradation module, that is, a combination of a negative ion generator and a UV lamp, which can completely degrade the excess ozone generated with the disinfection mist, completely eliminate the hidden danger of ozone leakage, and improve the overall equipment For safety, the UV lamp can also be set up with a 254nm single-band UV lamp or a 185nm/254nm dual-band UV lamp as needed to obtain the function of enhancing oxidation or degrading ozone; photoelectric coupling is based on photocatalysis and negative The synergistic action of oxygen ion generators excites catalysts through high-voltage static electricity and special wavelength light waves, adsorbs related reaction atoms, and promotes the acceleration of chemical reactions; through this technology, a higher concentration of active free radical particles can be generated to act on chemical atoms or biological organisms. Macromolecules promote the opening of molecular bonds and promote the denaturation and inactivation of biological macromolecules, so as to achieve the effects of rapid degradation and disinfection.

5) The particle size of the disinfection mist of the present invention is controllable. In the present invention, a 40MHz frequency high-amplitude ultrasonic atomizer is used for ultrasonic atomization, and the particle diameter of the disinfection mist is controlled to be less than 5μm, so that the sprayed disinfection mist becomes white Dry mist, there is no feeling of dampness when the human hand touches, and achieves anhydrous disinfection, so that when the items are disinfected and sterilized, no condensation water will be formed on the surface of the items, thereby affecting the use of the items.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the sterilizing gas generating device;

Figure 2 is a schematic diagram of the structure of a waste transfer vehicle;

Figure 3 is a schematic diagram of the structure of the disinfection trash can;

Figure 4 is a schematic diagram of the structure of the spray disinfection vehicle;

Figure 5 is a schematic diagram of the structure of a portable spray disinfector;

Figure 6 is a schematic diagram of the structure of a double-head spray disinfector;

Figure 7 is a schematic diagram of the structure of the fresh fruit and vegetable sterilizer;

Figure 8 is a schematic diagram of the structure of the sole sterilizer;

Figure 9 is a schematic diagram of the structure of the cold chain goods disinfection device;

Figure 10 is a flow chart of a method of killing;

Figure 11 is another flow chart of killing.

In the picture: 1-first ozone generator, 2-second ozone generator, 3-water tank, 4-ultrasonic atomizer, 5-honeycomb aeration tube, 6-first ultraviolet lamp, 7-first catalyst Plate, 8-lattice baffle, 9-closed cavity, 11-killing gas generator, 14-second catalyst mesh plate, 15-second UV lamp, 101-compartment door, 102-exhaust hole, 104 -Hot air blower, 131-inner tube, 132-collection bag, 171-elbow, 181-water inlet, 183-storage tank, 184-float water level switch, 185-leak-proof cover, 186-hand hole, 187- Infrared sensor, 188-jet tube, 189-pedal, 191-electric roller brush, 192-dust box, 193-suction fan, 201-negative ion generator, 202-heating chamber, 203-far infrared heater, 204 -Killing cavity, 205-degradation cavity, 206-conveyor belt, 207-the third catalyst plate.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not used to limit the present invention.

The molecular structure of ozone is unstable at normal temperature and pressure, and it quickly decomposes into oxygen and a single oxygen atom by itself. A single oxygen atom has strong activity and strong oxidizing ability, which can directly act on bacteria, viruses and volatile organic gases. Plays the role of sterilization and disinfection. It is a green disinfectant. The hydroxyl free radicals produced in the process of "dissolving" in water with ozone can enhance the disinfection and sterilization effect of ozone water. The oxidation potential of hydroxyl free radicals is 2.80eV. It is inferior to fluorine at 2.87eV and has strong oxidizing properties. Water vapor can generate hydroxyl radicals under the synergistic action of UV lamps and photocatalytic nets. Therefore, the present invention uses ozone, photocatalytic screens and ultraviolet lamps to form a disinfection system that does not require the addition of disinfectants or bactericides. The disinfection system of the present invention has the advantages of environmental protection, no chemical residues, and the like.

As shown in Figure 1, it is a killing gas generating device, which includes a hydroxyl radical generating part, a mixing part and a reinforcing part. The hydroxyl radical mist generated in the hydroxyl radical generating part enters the mixing part and is mixed with ozone. The mixing part communicates with the enhancement part, so that the mixed mist enters the enhancement part again. The enhancement part is provided with an ultraviolet lamp for exciting and/or degrading ozone. The direction indicated by the arrow in FIG. 1 is to eliminate the fog generation ,Flow direction.

The hydroxyl radical generating unit includes a first ozone generator 1, which is connected to a gas mixing device, and the gas mixing device includes an aeration tube, a jet or a vortex pump, an embodiment of the present invention It is a honeycomb aeration tube 5; the ozone and water produced by the first ozone generator 1 are mixed in a gas mixing device, and then form an ozone water mist through an atomizing device. The atomizing device in the present invention is an ultrasonic atomizer; The mixing part is provided with a second ozone generator 2, the enhancement part includes 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 tube 5 is placed in the water tank 3, and an ultrasonic atomizer 4 is arranged in the water tank 3, and the honeycomb aeration tube 5 is connected to the first ozone generator 1, and the air passes through the air inlet Enter the first ozone generator 1 of the radical mist production device. 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 passed through the honeycomb aeration tube Passing into the water tank 3 can greatly increase the contact area between ozone and water, so that the generated ozone is dissolved in the water to the greatest extent, forming ozone water, and reducing the concentration of ozone that escapes in the air (concentration <20mg/m ³ ); The ozone water is then atomized into ozone water mist through the action of the 40MHz frequency high-amplitude ultrasonic atomizer 4. By controlling the oscillation frequency, the particle size of the ozone water mist is controlled so that the particle size of the ozone water mist is less than 5μm , Forming a white dry mist; the white dry mist is scattered inside the device and merges with the ozone generated by the second ozone generator 2. The second ozone generator 2 adopts a tubular ozone generator, which further improves the ozone in the disinfection mist after fusion The content enables it to generate a large number of hydroxyl radicals and oxygen free radicals, while reducing the ozone concentration <60mg/m ³ , and improving the oxidation effect through a large number of hydroxyl radicals and oxygen free radicals.

The air mixing device can also be a jet or vortex pump. After mixing ozone and water, the atomization device can be directly connected to the pipeline to form ozone water mist. The atomization device is an existing technology. To repeat, the atomization device used in the present invention is an ultrasonic atomizer 4.

The sterilization gas generating device is also provided with a first ultraviolet lamp 6, and the first ultraviolet lamp 6 is arranged corresponding to the first catalyst plate 7. The fused sterilization mist is excited by the first ultraviolet lamp 6, which can enhance Oxidize or degrade excess ozone. When a 254nm single-band ultraviolet lamp is used, it has the effect of degrading ozone, which can degrade the excess ozone generated. The degraded ozone contains hydroxyl radicals, so that the disinfection mist can achieve the purpose of killing at the same time , To ensure that ozone will not leak out and affect the human body; when the 185nm/254nm dual-band UV lamp is used, it has the effect of stimulating ozone, which can stimulate the production of more ozone, so that the disinfection mist contains both ozone and hydroxyl free radicals. Enhance its oxidation and killing effect. At this time, it can be combined with an ozone degradation device to degrade the excess ozone after the elimination, so that the ozone can be discharged up to the standard without affecting the environment and the human body.

A further technical solution is that the first ozone generator 1 and the water tank 3 are arranged in the generating chamber 11, and the first ultraviolet lamp 6 and the first catalyst plate 7 are arranged in the enhancement chamber 12; Several grid baffles 8 are provided in the device, and the several grid baffles 8 are staggered to form an S-shaped mixing channel. The S-shaped mixing channel can make the ozone and the ozone water mist remix, and can improve the mixing of the ozone in the ozone water mist. The inlet of the S-shaped mixing channel communicates with the outlet of the generating cavity 11 and the second ozone generator 2 respectively, and the outlet of the S-shaped mixing channel communicates with the inlet of the enhancement cavity 12.

The following table uses 185nm/254nm dual-band UV lamps, the first ozone generator 1 is a 2-5g ozone generator, and the second ozone generator 2 is a 10g ozone generator as an example. In different embodiments, Comparison of ozone concentration and killing ability at different locations detected. It is also possible to replace the first ozone generator 1 and the second ozone generator 2 according to actual usage requirements to meet the concentration of ozone produced.

In the above table, the oxidation ability rating is divided into grades 1-5. Grade 1 has the strongest oxidation ability, that is, the best killing ability. The oxidation ability classification method is as follows:

By placing the test paper in the device of the present invention for oxidation treatment, the treated oxidation test paper is compared with the color before it is placed, and the color difference meter is used for measurement. The color difference level judges the color difference. The lighter the color, the stronger the oxidation ability, and the darker the color, the weaker the oxidation ability.

Use 3% hydrogen peroxide atomization disinfection, and through the oxidation ability classification method, carry out oxidation classification, judge by color difference, use 3% hydrogen peroxide atomization disinfection and oxidation ability classification as 2 level, unit Bacillus subtilis surface disinfection and sterilization The extinction rate was 98.62%.

The sterilizing gas generating device can be used in many occasions and combined with a variety of devices to form a sterilizing and sterilizing system. It can be used in conjunction with a confined space. The items to be sterilized are placed in the confined space, so that the sterilizing mist can sterilize them. When used, an air compressor can be used to increase the positive pressure of the confined space, thereby enhancing the penetration of the disinfection mist in the waste, the positive pressure is 100-600Pa; it can also be used in combination with semi-closed/non-closed spaces to make the disinfection mist spray Out, disinfect the surrounding environment, objects or human body.

Example one

The sterilizing gas generating device is arranged in the sealed cavity 9, and the gas outlet of the sterilizing gas generating device is in communication with the sealed cavity 9.

As shown in Figure 2, it is a waste transfer vehicle, which is particularly suitable for medical waste. The enclosed cavity 9 is a compartment arranged at the rear of the transport vehicle. The compartment contains items to be destroyed. The compartment is provided with a compartment door 101, the compartment door 101 is provided with a compartment door electromagnetic lock 102; the compartment 10 is provided with an ozone sensor, the upper side of the compartment is provided with an exhaust hole, and the compartment is close to the row The position of the air hole is provided with a hot air blower 104.

The ozone sensor is used to detect the concentration of ozone and set a safety threshold that will not harm the human body. If the ozone sensor detects that the concentration of ozone in the cabin 10 is higher than the safety threshold, the system controls the electromagnetic lock of the cabin door to generate magnetic force Lock the door 101; if the concentration of ozone in the car 10 is higher than the safety threshold, the door 101 needs to be opened, the system will start the hot air blower 104 to blow out hot air to decompose the ozone and exhaust it 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 opens and exhausts, reducing the concentration of ozone below the safety critical value.

Example two

As shown in Figure 3, the airtight cavity 9 is a disinfection cabinet. An inner cylinder 131 is provided in the disinfection cabinet. A collection bag 132 is sleeved inside the inner cylinder 131. Killing objects; the free radical water mist generating device is arranged on the lower side of the disinfection cabinet, and the free radical mist generated by the free radical water mist generating device enters the collection bag through the gap between the inner cylinder 131 and the side wall of the disinfection cabinet 132 in.

The disinfection cabinet of this embodiment is particularly suitable for medical waste. When in use, put the items to be disinfected into the collection bag 132, and after putting it into the collection bag 132, close the lid or door of the disinfection cabinet, if necessary, The lid or door and the disinfection cabinet can be locked or magnetically sealed so that the disinfection mist enters the collection bag 132 and kills the items in it. After the disinfection is completed, the collection bag 132 is directly removed. Take out the whole and discard it, and then replace the collection bag 132 with a new one.

Example three

The embodiment of combining the sterilizing gas generating device with the semi-closed space is to spray the sterilizing mist generated by the sterilizing gas generating device,

The side wall of the airtight cavity 9 is provided with an air jet port, an air jet port of a jet-flavored portable spray sterilizer, and an exhaust fan is provided at the air jet port. The parts are disinfected and killed. Because it directly acts on the human body, the ozone content can be reduced by a certain amount, so as to ensure that it will not affect the human body.

A second ultraviolet lamp 15 and a second catalyst mesh plate 14 are arranged in the airtight cavity 9, and the second ultraviolet light 15 corresponds to the second catalyst mesh plate 14; or the airtight cavity 9 is arranged There is a second ultraviolet lamp 15. Through the arrangement of the second ultraviolet lamp 15 and the second catalyst mesh plate 14, the generated ozone can be degraded, and the ozone can also be excited to improve the ability of oxidation and elimination.

As shown in Figure 4, the airtight cavity 9 is a trolley, which is a spray disinfection vehicle, which can spray disinfection mist to the surrounding air to eliminate the surrounding environment. The side wall of the trolley is provided with The air jet, the second ultraviolet lamp 15 and the second catalyst mesh plate 14 are arranged at the air jet and cover the entire air jet. The air jet is connected to the elbow 171, which can be opposite to Rotate.

The elbow 171 can be a thicker open pipe. By changing the direction of the elbow 171, the spray direction can be changed to meet the needs of different directions, and the large area can be eliminated, thereby reducing the spread of viruses in the air, or directly It acts on the ground and kills germs on the ground through the walking of the trolley. The elbow 171 can be disassembled, and can also be replaced with various types of nozzles, such as double-headed and triple-headed, as required.

A water storage tank can also be provided on the top of the trolley, and the water tank 3 in the sterilization gas generating device can be supplemented by the water storage tank.

Example four

As shown in Figure 5, the airtight cavity 9 is a box, which is compact and can be made into a portable spray sterilizer, which is easy to lift and can be placed directly in a hospital or a shopping mall for disinfection and sterilization of human hands. .

The second ultraviolet light 15 and the second catalyst mesh plate 14 are arranged at the air jet; a water inlet 181 is arranged beside the air jet, and the water inlet 181 is in communication with a water storage tank 183, and the water storage tank 183 It is connected to the water tank 3 of the sterilization gas generating device. The water storage tank 183 is arranged above the water tank 3, and a float water level switch 184 is arranged in the water tank 3; the exhaust fan at the air injection port is connected with the switch device.

The switch device can adopt an electric switch, such as an infrared sensor, or a mechanical switch; when in use, the user only needs to stretch his hand above the air injection port, and then connect the internal circuit of the disinfector to generate disinfection mist, which is blown to use The hands of the user are disinfected and sterilized on the hands of the user.

The portable spray disinfector can also be used as an indoor air evolution device, by continuously inhaling indoor air, mixing and disinfecting the inside of the sterilizer with the disinfecting mist, and then expelling it from the air jet.

Example five

As shown in Figure 6, it is a hand-washing sterilizer. The difference from the fifth embodiment is that the air injection port is provided on the upper side of the box. In this case, an air suction port is provided beside the air injection port. The suction port is communicated with the inside of the box, the upper ends of the air injection port and the suction port are covered with a leak-proof cover 185, the leak-proof cover 185 is provided with a hand hole 186, and the switch device is an infrared sensor 187.

When in use, the user only needs to extend his hand from the hand hole 186 into the leak-proof cover 185. At this time, the infrared sensor 187 is triggered to generate a disinfectant mist, which is finally blown to the user's hand and performs the treatment on the user's hand. Disinfection and sterilization, the mist after disinfection and sterilization is sucked back into the sterilizer through the suction port, so that the sterilization process of the entire device is in a closed space, and the spray nozzle sprays the disinfection mist, and then disinfects through the suction port After collecting the mist, it not only saves water and energy consumption, but also has no ozone leakage and will not cause secondary pollution to the environment.

Example Six

As shown in Figure 7, the difference from Embodiment 5 and Embodiment 4 is that in this embodiment, a section of air jet pipe 188 extending outward is connected to the air jet port, and the switch device is provided at the bottom of the box. The pedal 189. The air-jet tube 188 can be set according to the required length, and the device is turned on by stepping on the pedal 189 to generate disinfection mist, so that the disinfection mist is sprayed from the air-jet tube 188. The air-jet tube 188 can be a hose or a hard tube.

This embodiment is particularly suitable for killing fruits and vegetables and fresh fruits. Since the mist is dry fog, there is no dampness and will not affect the surface of the fresh fruits and vegetables, so that the remaining water droplets affect the shelf life of the fresh fruits and vegetables. When in use, the operator can directly hold the bag containing food, insert the air jet tube 188 from the mouth of the bag, step on the pedal 189, and produce a disinfectant mist for sterilization. After the sterilization is completed, stop stepping and directly tie the bag mouth tightly. .

Example Seven

As shown in Fig. 8, the closed cavity 9 disinfects the shoe box, which is a sole disinfection device. The body of the disinfected shoe box is rotatably connected with an electric roller brush 191, and the electric roller brush 191 is adapted to the sole to be disinfected. A dust box 192 is provided in the disinfected shoe box and located below the electric roller brush 191. The air jet is arranged on the side of the electric roller brush 191, and the blowing direction of the air jet faces the direction of the sole to be disinfected. A second ultraviolet lamp 15 is provided at the air injection port.

The electric roller brush 191 can be a hard brush or a sponge brush. When the user places the shoes on the electric roller brush 191, it is turned on by a manual switch or infrared induction method. At this time, a disinfection mist is automatically generated. The user's shoe sole is disinfected and sterilized, and the dust and mud on the user's shoe sole are absorbed into the dust collection box 192 through the electric roller brush 191, so as to achieve the effect of cleaning and disinfection.

Example eight

The difference from the seventh embodiment is that a suction fan 193 is provided below the dust collection box 192, and the suction fan 193 communicates with the inside of the sterilized shoe box and blows air into the sterilized shoe box. The hole diameter on the upper surface of the dust box 192 is larger than the hole diameter on the lower surface.

The suction fan 193 sucks the dust on the shoe sole and the contaminated air into the dust box 192 together. The dust is collected by the dust box 192. The contaminated air enters the device and mixes with the disinfection mist. The disinfection mist can prevent the pollution. The air with germs is sterilized, and the treated clean air flows through the second ultraviolet lamp 15 and blows from the air jet to the sole of the shoe to sterilize and sterilize the sole, thus forming a circulating disinfection mist.

Example 9

As shown in Figure 9, when the disinfection and disinfection device is large, such as a cargo disinfection device, the disinfection gas generating device can be used in combination with the photoelectric coupling device to degrade the excess ozone generated by the photoelectric coupling device to meet the emission standards. The photoelectric coupling device is a technology based on the synergistic effect of photocatalysis and negative oxygen ion generator, which excites the catalyst through high-voltage static electricity and special wavelength light waves, adsorbs related reaction atoms, and promotes the acceleration of chemical reactions; this technology can produce higher concentrations of Active free radical particles act on chemical atoms or biological macromolecules to promote the opening of molecular bonds and promote the denaturation and inactivation of biological macromolecules, thereby achieving the effects of rapid degradation and disinfection.

The photoelectric coupling device includes a second ultraviolet lamp 15 and a second catalyst mesh plate 14 arranged in the airtight cavity 9. The second ultraviolet lamp 15 corresponds to the second catalyst mesh plate 14, and the second ultraviolet lamp There is a negative ion generator 201 at 15 places; the disinfection mist generated by the sterilizing gas generator passes through the second ultraviolet lamp 15, the second catalyst screen 14 and the negative ion generator 201 and is discharged. The negative ion generator 201 has an adsorption effect , Can absorb excess ozone on the surface of the negative ion generator 201, thereby enhancing the ozone degradation ability of the ultraviolet lamp.

When in use, the goods are first eliminated by the disinfection mist. After the disinfection mist is completed, the excess high-concentration ozone can be degraded through the synergistic effect of the second ultraviolet lamp 15, the second catalyst screen 14 and the negative ion generator 201. Degradation, so as to ensure that there will be no leakage and overflow of ozone when the goods are shipped from the exit.

Example ten

The difference from the ninth embodiment is that in this embodiment, the second catalyst mesh plates 14 are staggered to form an S-shaped channel, and the negative ion generators 201 are staggered and evenly distributed in the S-shaped channel; the disinfection mist passes through the S After being discharged into the heating chamber 202, the heating chamber 202 is provided with a far-infrared heater 203, and the far-infrared heater 203 corresponds to the third catalyst plate 203.

The setting of the S-shaped channel can make the disinfection mist degrade more completely. After the degradation of the disinfection mist, there will still be some residual ozone. The ozone is further degraded through the heating chamber 202, and the degradation can be directly discharged into the air.

Example 11

The difference from the tenth embodiment and the ninth embodiment is that the sterilizing gas generating device is arranged in the sterilizing cavity 204, and the second ultraviolet lamp 15, the negative ion generator 201 and the far infrared heater 203 are arranged in In the degradation cavity 205; a conveyor belt 206 is provided through the sterilization cavity 204 and the degradation cavity 205, the second ultraviolet lamp 15 and the negative ion generator 201 are arranged above the conveyor belt 206, and the far-infrared heater 203 is arranged Below the conveyor belt 206; the mist generated by the sterilization gas generating device enters the degradation cavity 205 through the sterilization cavity 204, and then circulates into the sterilization cavity 204 through the far infrared heater 203.

When in use, the cargo enters the sterilization device via the conveyor belt 206, first passes through the sterilization chamber 204, and after the cargo is sterilized by the sterilization mist generated by the sterilization gas generator, the cargo enters the degradation chamber 205, which is the degradation chamber. 205 The excess ozone is degraded, so that the degraded ozone further produces active free radicals, and the degraded mist is blown toward the cargo to kill the cargo a second time; the mist after the second kill is removed from the conveyor belt 206 After the infrared heater 203 finally heats and degrades below the infrared heater 203, the temperature that the infrared heater 203 can reach is 40-50° C., and it enters the sterilization cavity 204 in this cycle to participate in a new round of sterilization and sterilization. This embodiment is particularly suitable for the elimination of cold chain goods.

The following table shows the degradation of ozone through the photoelectric coupling device (using the second ultraviolet lamp 15, the negative ion generator 201 and the far infrared heater 203), the negative ion generator is used and the negative ion generator is not used, the degradation of ozone Ability comparison.

It can be seen from the above table that when a negative ion generator is used, ozone can be degraded more completely, the amount of ozone remaining is lower, and the emission can meet the standard, and it will not affect the human body at the exit of the goods.

Example 12

2) After the completion of the first stage of sterilization, the sterilization mist generated by the sterilization gas generating device is repeatedly passed into the sealed cavity within the second preset time to perform the second stage of sterilization;

3) Repeat the first and second stages of killing until the number of repetitions reaches the preset number. The preset number can be set according to the hazard level of the anti-epidemic waste. The higher the hazard level, the more the preset number of times. many;

4) After the completion of step 3), the airtight cavity is heated and irradiated with 254nm wavelength ultraviolet rays for the third stage of elimination within the third preset time; heating can increase the temperature in the space and accelerate the decomposition of ozone to achieve The purpose of eliminating ozone, and can also generate new active free radicals, heating while irradiating ultraviolet rays can further inactivate the remaining viruses, can further strengthen the killing effect. In this embodiment, the method of heating the enclosed space is heating with an infrared heater.

After the third stage of elimination, collect the ozone concentration in the confined space, when the ozone concentration is lower than the safety threshold, control the electronic control door lock to unlock, when the ozone concentration is not lower than the safety threshold, repeat the third stage of elimination.

Among them, the ozone concentration can be collected by the corresponding sensor. The safety threshold can be set according to actual needs, for example, 2ppm. When the ozone concentration is lower than the safety threshold, the electronically controlled door lock can be unlocked and the confined space can be opened. Otherwise, the third stage of elimination will be repeated until the ozone concentration is lower than the safety threshold.

Refer to FIG. 10, which is a flowchart of the killing method of this embodiment. In this embodiment, the first preset time is 10 minutes, the second preset time is 5-10 minutes, and the third preset time is 10-20. minute. The number of times to pass the disinfection mist is 2 times, the fourth preset time is 30-60 seconds, and the fifth preset time is 2 minutes. In a specific application, the first preset time is 10 minutes, the second preset time is 5 minutes, and the third preset time is 10 or 15 minutes. The number of times to pass the disinfection mist is 2 times, the fourth preset time is 30 seconds, and the fifth preset time is 2 minutes. There are three options for the preset times, namely 1, 3 times, and 7 times. For users, the three preset times correspond to three kill modes, namely, mild kill mode and medium kill mode. And the heavy killing mode, in the light killing mode, the third preset time is 10 minutes, in the medium killing mode and the heavy killing mode, the third preset time is 15 minutes.

When operating the disinfection device, the user first needs to select the disinfection mode. If not, the disinfection device selects the mild disinfection mode by default.

The mild killing mode takes 40 minutes in total, and the process is as follows:

From 0 to 10 minutes, pass ozone into the confined space and irradiate the confined space with 185nm wavelength and 254nm wavelength ultraviolet rays for the first stage of elimination;

From the 10th minute to the 15th minute, pass the disinfection mist into the enclosed space twice to carry out the second stage of disinfection, in which the duration of each disinfection mist is 30 seconds, and each disinfection mist is suspended for 2 minutes;

From the 15th minute to the 30th minute, repeat the first stage kill and the second stage kill once;

From 30 minutes to 40 minutes, the confined space is heated and irradiated with 254nm wavelength ultraviolet rays for the third stage of killing.

The medium killing mode takes 1 hour and 15 minutes in total, and the process is as follows:

From the 15th minute to the 60th minute, repeat the first stage kill and the second stage kill three times;

From 60 minutes to 75 minutes, the confined space is heated and irradiated with 254nm wavelength ultraviolet rays for the third stage of killing.

The heavy killing mode takes 2 hours and 15 minutes in total, and the process is as follows:

From the 10th minute to the 15th minute, pass the disinfection mist into the enclosed space twice to carry out the second stage of disinfection, among which, the duration of each disinfection mist is 30 seconds, and the hydroxy radical water mist is paused after each introduction 2 minutes;

From the 15th minute to the 120th minute, repeat the first stage kill and the second stage kill 7 times;

From 120 minutes to 135 minutes, the confined space is heated and irradiated with 254nm wavelength ultraviolet rays for the third stage of killing.

The disinfection method of this embodiment and the conventional ozone disinfection method are used to disinfect the same amount of simulated waste. According to the 2002 version of the "Disinfection Technical Specification" of the Ministry of Health, the test strain uses Bacillus subtilis (ATCC6633). Take the spore suspension and adjust the concentration of the bacterial solution to about 1×108cfu/mL～5×108cfu/mL according to the counting result. Spread the sterilized carrier sheet (filter paper or plastic fabric) in a sterile plate, and add the bacterial liquid dropwise one by one. The amount of bacteria drop added is 10μL per tablet. Negative control plus 10μL PBS. Put the above-mentioned bacterial slices in a sterile petri dish, and then put them in a closed space for sterilization treatment for different times, and then test and calculate the spore killing rate. The sterilization test data is shown in the table below.

The disinfection method of this embodiment and the disinfection test data of the conventional ozone disinfection method

It can be seen from the table that under the same ozone concentration (45ppm) and sterilization time conditions, the sterilization method in this embodiment has a much higher sterilization rate for the bacillus on the surface of the filter paper and the fabric. This result also reflects the disinfection mist. It has strong bactericidal ability, and can diffuse and penetrate into the surface of textiles to kill bacteria in a deep layer; while the conventional ozone disinfection method has insufficient ability to kill bacillus, especially the poor killing ability of bacteria on the surface of plastic fabrics, and the penetration ability Insufficient, only by prolonging the sterilization time and ozone concentration, can the sterilization rate be increased, even so, the sterilization rate of the bacteria on the surface of the fabric is not high. In addition, this embodiment can achieve 100% killing of Bacillus under the condition of prolonging the killing time, and the ozone concentration has fallen below the safe concentration before the closed space is opened; while the conventional ozone disinfection method still remains after the killing A large amount of ozone remains, once the confined space is opened, it will affect the safety of operators.

Embodiment 13

The difference from the twelfth embodiment is that in this embodiment, ozone and the disinfection mist generated by the disinfection gas generating device are simultaneously introduced within the first preset time. Refer to FIG. 11, which is a flowchart of this embodiment. ,Proceed as follows:

2) After the first stage of sterilization starts, the sterilization mist generated by the sterilization gas generating device is passed into the sealed cavity, and the sterilization mist is stopped before the end of the first stage of sterilization;

3) After the completion of the first stage of killing, the enclosed space is heated and irradiated with 254 nm wavelength ultraviolet rays within a second preset time to perform the second stage of killing.

When the processing method of this embodiment is specifically implemented, the first preset time is 20-40 minutes, and the second preset time is 20 minutes. During the first stage of disinfection, the duration of the disinfection mist is 10 minutes. The disinfection mist can be passed in 10 minutes after the start of the first stage of disinfection.

The user does not need to do too much when operating the killing device, just turn on the power, select the kill start button, and the kill device will automatically complete the killing. The killing time is 1 hour. The process is:

From 0 to 40 minutes, pass ozone into the confined space and irradiate the space with 185nm wavelength and 254nm wavelength ultraviolet rays for the first stage of elimination;

From the 10th minute to the 20th minute, pass the disinfectant mist into the space;

From the 40th minute to the 60th minute, the space is heated and irradiated with 254nm wavelength ultraviolet rays for the second stage of killing.

Similar to the spore suspension sample in Example 13, using the sterilization method of this example, the measured data are as follows.

The processing method of this embodiment and the disinfection test data of the conventional ozone disinfection method

Example Fourteen

A control device for a disinfection and disinfection system, the control device includes a processor and a memory, and a computer program is stored in the memory. The processor is used to execute the computer program to implement the steps of the disinfection method.

Among them, the processor may be a CPU (Central Processing Unit, central processing unit). It can also be an integrated circuit chip with computing (including judgment) and control capabilities. The processor can also 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 gates or transistor logic devices, or discrete hardware components, etc., are not specifically limited here. The general-purpose processor may be a microprocessor or any conventional processor or the like.

The memory can be any electronic, magnetic, optical, or other physical storage device, and can contain or store information, such as executable instructions, data, and so on. For example, the memory can include RAM (Random Access Memory), volatile memory, NVM (Non-Volatile Memory, non-volatile memory), flash memory, storage drives (such as hard drives), solid state drives, and any type of Storage discs (such as optical discs, DVDs, etc.), or similar storage media, or a combination of them.

The above-mentioned embodiments are preferred embodiments. It should be pointed out that the above-mentioned preferred embodiments should not be regarded as limiting the invention, and the protection scope of the present invention should be subject to the scope defined by the claims. For those of ordinary skill in the art, without departing from the spirit and scope of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

A sterilization gas generating device, which is characterized in that it comprises a hydroxyl radical generating part, a mixing part and a reinforcing part. The hydroxyl radical mist generated in the hydroxyl radical generating part enters the mixing part and is mixed with ozone. The part communicates with the reinforcement part, so that the mixed mist enters the reinforcement part again, and an ultraviolet lamp for exciting and/or degrading ozone is arranged in the reinforcement part.
The sterilization gas generating device according to claim 1, wherein the hydroxyl radical generating part comprises a first ozone generator (1), and the first ozone generator (1) is connected to a gas mixing device, The ozone and water produced by the first ozone generator (1) are mixed in the air mixing device, and then pass through the atomization device to form ozone water mist; the mixing part is provided with a second ozone generator (2), and the reinforcing part It includes a first ultraviolet light (6), and the first ultraviolet light (6) is arranged corresponding to the first catalyst plate (7).
The killing gas generating device according to claim 1 or 2, characterized in that: the mixing device is a honeycomb aeration tube (5), and the honeycomb aeration tube (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 plurality of grid baffles (8) are arranged in a staggered manner A mixing channel is formed; the inlet of the mixing channel is respectively connected with the hydroxyl radical generating part and the outlet of the second ozone generator (2), and the outlet of the mixing channel is connected with the inlet of the enhancing part; the first ultraviolet lamp (6) is 254nm single band UV lamp, or 185nm/254nm dual band UV lamp.
A disinfection and disinfection system, characterized in that it comprises a disinfection gas generating device (11), which is arranged in a closed cavity (9) or communicates with the sealed cavity (9) The disinfection mist generated by the disinfection gas generating device (11) is filled in the sealed cavity (9).
The disinfection and disinfection system according to claim 4, characterized in that: the airtight cavity (9) is a compartment (10) arranged at the rear of the transport vehicle, and the items to be disinfected are contained in the compartment. A compartment door (101) is arranged on the compartment, and an electromagnetic lock for the compartment door is arranged on the compartment door (101); an ozone sensor is arranged in the compartment (10), and an exhaust hole (102) is arranged on the upper side of the compartment A hot air blower (104) is arranged in the compartment close to the exhaust hole.
The disinfection and disinfection system according to claim 4, characterized in that: the airtight cavity (9) is a disinfection cabinet, and an inner tube (131) is provided in the disinfection cabinet, and the inner tube (131) is sleeved A collection bag (132) is provided, and the collection bag (132) contains the items to be disinfected; the disinfection gas generating device (11) is arranged on the lower side of the disinfection cabinet, and the disinfection gas generating device (11) The free radical mist generated by) enters the collection bag (132) through the gap between the inner cylinder (131) and the side wall of the disinfection cabinet.
The disinfection and sterilization system according to claim 4, characterized in that: the side wall of the airtight cavity (9) is provided with an air jet, an exhaust fan is provided at the air jet, and the airtight cavity ( 9) is provided with a second ultraviolet lamp (15) and a second catalyst screen (14), the second ultraviolet lamp (15) corresponds to the second catalyst screen (14); or the airtight space A second ultraviolet lamp (15) is arranged in the cavity (9).
The disinfection and disinfection system according to claim 7, characterized in that: the closed cavity (9) is a trolley, the side wall of the trolley is provided with an air jet, the second ultraviolet light (15) and The second catalyst mesh plate (14) is arranged at the gas injection port and covers the entire gas injection port, and the gas injection port is connected with the elbow pipe (171), and the elbow pipe (171) can rotate relative to the gas injection port.
The disinfection and disinfection system according to claim 7, characterized in that: the sealed cavity (9) is a box, and the second ultraviolet light (15) and the second catalyst screen (14) are arranged on the air jet A water inlet (181) is provided next to the air jet, the water inlet (181) is in communication with a water storage tank (183), and the water storage tank (183) is connected to the water tank (3) of the sterilizing gas generator ) Is connected, the water storage tank (183) is arranged above the water tank (3), and a float water level switch (184) is arranged in the water tank (3); the exhaust fan at the air injection port is connected with the switch device.
The disinfection and disinfection system according to claim 9, wherein the air injection port is provided on the upper side of the box body, an air suction port is provided beside the air injection port, and the air suction port is communicated with the inside of the box body. The upper ends of the air injection port and the suction port are covered with a leak-proof cover (185), the leak-proof cover (185) is provided with a hand hole (186), and the switch device is an infrared sensor (187).
The disinfection and sterilization system according to claim 9, characterized in that: a section of air-jet pipe (188) extending outward is connected to the air-jet port, and the switch device is a pedal (189) provided at the bottom of the box.
The disinfection and disinfection system according to claim 7, characterized in that the closed cavity (9) disinfects the shoe box, and the body of the disinfected shoe box is rotatably connected with an electric roller brush (191), and the electric roller brush ( 191) adapted to the sole to be disinfected, a dust box (192) is arranged in the disinfected shoe box under the electric roller brush (191), and the air jet is arranged on the side of the electric roller brush (191), The blowing direction of the air jet is toward the direction of the sole to be disinfected, and a second ultraviolet light (15) is arranged at the air jet.
The disinfection and disinfection system according to claim 12, characterized in that: an air suction fan (193) is arranged below the dust collection box (192), and the air suction fan (193) is connected to the inside of the disinfection shoe box body. And blow air into the body of the sterilized shoe box, and the hole on the upper surface of the dust collecting box (192) is larger than the hole on the lower surface.
The disinfection and disinfection system according to claim 4, characterized in that: a second ultraviolet lamp (15) and a second catalyst screen (14) are arranged in the sealed cavity (9), and the second ultraviolet The light lamp (15) corresponds to the second catalyst screen (14), and the second ultraviolet light (15) is provided with a negative ion generator (201); the disinfection mist generated by the disinfection gas generator passes through The second ultraviolet light (15), the second catalyst screen (14) and the negative ion generator (201) are discharged afterwards.
The disinfection and disinfection system according to claim 14, characterized in that: the second catalyst mesh plates (14) are staggered to form an S-shaped channel, and the negative ion generators (201) are staggered and evenly distributed in the S-shaped channel; The disinfection mist is discharged into the heating chamber (202) through the S-shaped channel, and the heating chamber (202) is provided with a far-infrared heater (203), the far-infrared heater (203) and the third catalyst plate (207) Corresponding.
The disinfection and disinfection system according to claim 15, characterized in that: the disinfection gas generating device is arranged in the disinfection cavity (204), and the second ultraviolet light (15) and the negative ion generator (201) And the far-infrared heater (203) are arranged in the degradation cavity (205); a conveyor belt (206) is provided through the sterilization cavity (204) and the degradation cavity (205), the second ultraviolet light (15) and The negative ion generator (201) is arranged above the conveyor belt (206), the far-infrared heater (203) is arranged below the conveyor belt (206); the mist generated by the killing gas generator passes through the killing chamber (204) enters the degradation cavity (205), and then circulates through the far-infrared heater (203) into the sterilization cavity (204).
A disinfection and disinfection method for a disinfection and disinfection system is characterized in that it comprises the following steps:

1) Pass ozone into the sealed cavity within the first preset time and irradiate the sealed cavity with ultraviolet rays of 185nm wavelength and 254nm wavelength to perform the first stage elimination;

2) After the completion of the first stage of disinfection, the disinfection mist generated by the disinfection gas generating device is passed into the sealed cavity multiple times within the second preset time to perform the second stage of disinfection; or in the first stage of disinfection; After the killing starts, pass the disinfection mist generated by the killing gas generating device into the sealed cavity, and stop passing the disinfection mist before the end of the first stage of killing;

3) If ozone and disinfection mist are introduced in stages, repeat the first and second stages of sterilization until the number of repetitions reaches the preset number;

4) After step 3) is completed, heat the sealed cavity and irradiate ultraviolet rays with a wavelength of 254 nm within a third preset time to perform a third stage of sterilization.
The sterilization method of the disinfection and sterilization system according to claim 17, wherein the first preset time is 10-40 min, the second preset time is 5-10 min, and the third preset time is 5-10 min. The time is 10-20min; if the disinfection mist is introduced after the first stage of disinfection, the number of times of disinfection mist is twice, each lasting 30-60s, and the time interval between two disinfection mist is 2min; If the disinfection mist is introduced after the start of the first stage of disinfection, it shall be applied 10 minutes after the start of the first stage, and the time of introduction shall be 10 minutes.
A control device for a disinfection and disinfection system, characterized in that: the control device includes a processor and a memory, a computer program is stored in the memory, and the processor is used to execute the computer program to implement the system according to claim 17 or Steps of the method of elimination described in 18.