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WO2021170029A1 - 一种消毒消杀系统及消杀方法 - Google Patents

一种消毒消杀系统及消杀方法 Download PDF

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Publication number
WO2021170029A1
WO2021170029A1 PCT/CN2021/077844 CN2021077844W WO2021170029A1 WO 2021170029 A1 WO2021170029 A1 WO 2021170029A1 CN 2021077844 W CN2021077844 W CN 2021077844W WO 2021170029 A1 WO2021170029 A1 WO 2021170029A1
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WO
WIPO (PCT)
Prior art keywords
disinfection
ozone
sterilization
mist
cavity
Prior art date
Application number
PCT/CN2021/077844
Other languages
English (en)
French (fr)
Inventor
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 (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202020232451.9U external-priority patent/CN212880335U/zh
Priority claimed from CN202021642388.2U external-priority patent/CN213264039U/zh
Priority claimed from CN202022699782.6U external-priority patent/CN213695541U/zh
Priority claimed from CN202022717735.XU external-priority patent/CN213910114U/zh
Priority claimed from CN202022699800.0U external-priority patent/CN213723846U/zh
Priority claimed from CN202022713920.1U external-priority patent/CN213789117U/zh
Priority claimed from CN202022715541.6U external-priority patent/CN214050168U/zh
Priority claimed from CN202120404402.3U external-priority patent/CN215196316U/zh
Priority claimed from CN202110203484.XA external-priority patent/CN112807466A/zh
Priority claimed from CN202110203323.0A external-priority patent/CN112807465A/zh
Priority to CN202180005344.XA priority Critical patent/CN114450038A/zh
Application filed by 中物院成都科学技术发展中心 filed Critical 中物院成都科学技术发展中心
Publication of WO2021170029A1 publication Critical patent/WO2021170029A1/zh

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00Disinfection, sterilisation or deodorisation of air
    • A61L9/14Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00Disinfection, sterilisation or deodorisation of air
    • A61L9/16Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/18Radiation
    • A61L9/20Ultraviolet radiation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L11/00Methods specially adapted for refuse
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/20Gaseous substances, e.g. vapours
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/22Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00Disinfection, sterilisation or deodorisation of air
    • A61L9/015Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone

Definitions

  • the invention belongs to the technical field of disinfection and disinfection, and specifically relates to a disinfection and disinfection system and a disinfection method.
  • 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.
  • ozone to exert its strong oxidative and sterilizing ability, it needs the highest concentration possible.
  • high concentrations of ozone will have a destructive effect on the human respiratory system and eye mucosa, resulting in limited use of ozone.
  • 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.
  • 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.
  • the methods used to generate hydroxyl radicals include atmospheric pressure plasma excitation, high-energy ultraviolet light, photocatalytic oxidation, and electrocatalytic oxidation.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • an air jet is provided on the side wall of the airtight cavity
  • an exhaust fan is arranged at the air jet
  • 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.
  • 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.
  • 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 .
  • 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.
  • 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.
  • 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.
  • 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. ⁇ The aperture.
  • 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.
  • 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.
  • 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:
  • step 3) 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 first preset time is 10-40 min
  • the second preset time is 5-10 min
  • the third preset time is 10-20 min
  • 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
  • the access is 10min after the first stage starts, and the access time is 10min.
  • a control device for a disinfection and disinfection system 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 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.
  • 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;
  • 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.
  • 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.
  • the sterilization gas generating device of the present invention can be used in combination with a closed cavity and a semi-closed cavity.
  • the object to be sterilized can be directly placed in the closed cavity for sterilization; when combined
  • 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.
  • 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 in
  • the particle size of the disinfection mist of the present invention is controllable.
  • 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 5 ⁇ m, 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.
  • 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.
  • 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.
  • 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.
  • FIG. 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.
  • 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.
  • the particle size of the ozone water mist is controlled so that the particle size of the ozone water mist is less than 5 ⁇ m , 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.
  • a 254nm single-band ultraviolet lamp 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 .
  • the 185nm/254nm dual-band UV lamp when 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.
  • 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.
  • 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:
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the generated ozone can be degraded, and the ozone can also be excited to improve the ability of oxidation and elimination.
  • 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.
  • 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.
  • an electric switch such as an infrared sensor, or a mechanical switch
  • 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.
  • the air injection port is provided on the upper side of the box.
  • 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.
  • 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.
  • Embodiment 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 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.
  • 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. .
  • 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.
  • the electric roller brush 191 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.
  • 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.
  • 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
  • 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.
  • the goods are first eliminated by the disinfection mist.
  • 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.
  • 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.
  • 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.
  • the cargo 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.
  • 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
  • the infrared heater 203 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.
  • a disinfection and disinfection method for a disinfection and disinfection system includes the following steps:
  • 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;
  • 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;
  • 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.
  • the method of heating the enclosed space is heating with an infrared heater.
  • the ozone concentration can be collected by the corresponding sensor.
  • the safety threshold can be set according to actual needs, for example, 2ppm.
  • 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.
  • the first preset time is 10 minutes
  • the second preset time is 5-10 minutes
  • 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
  • the fifth preset time is 2 minutes.
  • the first preset time is 10 minutes
  • the second preset time is 5 minutes
  • 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
  • the fifth preset time is 2 minutes.
  • There are three options for the preset times namely 1, 3 times, and 7 times.
  • the three preset times correspond to three kill modes, namely, mild kill mode and medium kill mode.
  • 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.
  • the user 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:
  • 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:
  • 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:
  • 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.
  • 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 10 ⁇ L per tablet. Negative control plus 10 ⁇ L 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 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.
  • 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.
  • 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;
  • 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.
  • the first preset time is 20-40 minutes
  • the second preset time is 20 minutes.
  • 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:
  • the space is heated and irradiated with 254nm wavelength ultraviolet rays for the second stage of killing.
  • the measured data are as follows.
  • a control device for a disinfection and disinfection system 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.
  • 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.
  • 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.

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Abstract

一种消毒消杀系统及消杀方法,该消毒消杀系统基于消杀气体生成装置(11),消杀气体生成装置(11)包括羟基自由基生成部、混合部和增强部,所述羟基自由基生成部内产生的羟基自由基雾气进入到混合部后与臭氧混合,所述混合部与增强部连通,使混合后的雾气再进入增强部,所述增强部内设置有用于激发和/或降解臭氧的第一紫外光灯(6),将消杀气体生成装置(11)与其他装置相组合,应用于各种不同的应用场合,对环境以及人体部位进行消毒消杀;采用臭氧和羟基自由基混合进行消杀,不但氧化能力强,消杀效果好,且对环境、人体友好,不会产生二次污染以及副作用,应用范围广。

Description

一种消毒消杀系统及消杀方法 技术领域
本发明属于消毒消杀技术领域,具体涉及一种消毒消杀系统及消杀方法。
背景技术
臭氧具有极强的氧化性能,氧化电位达到2.07V,在一定条件下可自行分解成氧气和氧自由基,后者具有极强的氧化活性,可分解病菌细胞达到灭菌目的,且没有二次污染残留物,制取容易,是理想的绿色氧化药剂。其广谱灭菌性能优异,对所有病菌繁殖体、芽孢、病毒有相当强的灭活能力,杀菌能力比含氯系消毒剂强几十倍到数百倍,已被消毒行业广泛认可。然而臭氧要发挥极强氧化杀菌能力,需要尽可能高的浓度,但高浓度臭氧会对人体呼吸系统和眼睛粘膜产生破坏作用,导致臭氧使用领域有限。
加拿大Ozonator Environmental Solutions公司开发了一套复杂的设备制备极高浓度臭氧(>2000ppm)用于处理医疗废物,灭菌效果优异,但设备造价昂(400万以上),对系统气密性要求极高,一旦泄露危害严重。
而将臭氧溶于水中配制成含羟基自由的臭氧水,用作物体和空气病菌消毒,将有利于减少臭氧释放量,同时羟基自由基的氧化电位为2.80eV,比臭氧氧化能力更强,可与大多数有机物发生快速的链式反应,直接矿化为二氧化碳和水,灭菌能力更强。
高活性羟自由基工程化使用还面临两个较大问题:(1)如何低成本、大量产生高浓度羟基自由基;(2)羟基自由基寿命短,不到1秒,如何有效传输扩散到病菌表面。目前,用于生成羟基自由基的方法包括大气压等离子激发、高能紫外线、光催化氧化、电催化氧化。但多数方法用于制造羟基自由基造价昂贵、还没能制作成用于大规模物体表面消 毒的工程装置(如医疗废物、冷链货物等)和自动控制系统。
发明内容
为了解决化学消毒的方式会产生残留以及二次污染,且进口的臭氧消毒设备成本高昂的问题,本发明提供了一种消毒消杀系统,该消毒消杀消杀系统基于消杀气体生成装置,产生具有强氧化性的羟基自由基,并将自由基雾气生产装置应用于消杀的各个领域中,满足不同领域的消杀要求。在消杀的过程中,通过密闭或半密闭空间,将臭氧限制在密闭空间内,在消杀时臭氧不会因为外泄,对人体产生影响;且通过紫外光灯,增强氧化或者降解臭氧,从而保证不同装置上对臭氧以及羟基自由基的需求,使得多余臭氧不会溢出在空气中,对周围的空气造成二次污染。
本发明所采用的技术方案是:
一种消杀气体生成装置,包括羟基自由基生成部、混合部和增强部,所述羟基自由基生成部内产生的羟基自由基雾气进入到混合部后与臭氧混合,所述混合部与增强部连通,使混合后的雾气再进入增强部,所述增强部内设置有用于激发和/或降解臭氧的紫外光灯。
优选的,所述羟基自由基生成部包括第一臭氧发生器,所述第一臭氧发生器与混气装置连接,第一臭氧发生器产生的臭氧和水在混气装置中混合,再经过雾化装置形成臭氧水雾;所述混合部内设有第二臭氧发生器,所述增强部包括第一紫外光灯,所述第一紫外光灯与第一催化剂板对应设置。
优选的,所述混气装置为蜂窝曝气管,所述蜂窝曝气管设置在水槽中,所述水槽中设置有雾化装置,所述雾化装置为超声雾化器;所述混合部内设置有数个格挡板,数个所述格挡板交错布置形成混合通道;混合通道的入口分别与羟基自由基生成部和第二臭氧发生器的出口连通,混合通道的出口与增强部的入口连通;所述第一紫外光灯为254nm单波段紫外光灯,或185nm/254nm双波段紫外光灯。
一种消毒消杀系统,包括消杀气体生成装置,所述消杀气体生成装置设置在密闭空腔中,或与密闭空腔连通,所述消杀气体生成装置产生的消毒雾气充满于密闭空腔的内部。
优选的,所述密闭空腔为设置在运输车后部的车厢,所述车厢内盛放待消杀物品,所述车厢上设置有厢门,所述厢门上设置有厢门电磁锁;所述车厢内设置有臭氧传感器,所述车厢上侧设置有排气孔,所述车厢内靠近排气孔的位置设置有热风机。
优选的,所述密闭空腔为消毒柜,所述消毒柜内设置有内筒,所述内筒内套设有收集袋,所述收集袋内盛放待消杀物品;所述自由基水雾生成装置设置在消毒柜的下侧,所述自由基水雾生成装置产生的自由基水雾经由内筒与消毒柜侧壁之间的间隙,进入到收集袋中。
优选的,所述密闭空腔的侧壁上设置有喷气口,所述喷气口处设置有排气扇,所述密闭空腔中设置有第二紫外光灯和第二催化剂网板,所述第二紫外光灯与第二催化剂网板相对应;或所述密闭空腔中设置有第二紫外光灯。
优选的,所述密闭空腔为小车,所述小车的侧壁上设置有喷气口,所述第二紫外光灯和第二催化剂网板设置在喷气口处、并覆盖整个喷气口,所述喷气口与弯管连接,所述弯管可相对于喷气口转动。
优选的,所述密闭空腔为箱体,所述第二紫外光灯和第二催化剂网板设置在喷气口处;所述喷气口旁设置有入水口,所述入水口与蓄水箱连通,所述蓄水箱与消杀气体生成装置的水槽连通,所述蓄水箱设置在水槽上方,所述水槽内设置有浮球水位开关;所述喷气口处的排气扇与开关装置连接。
优选的,所述喷气口设置在箱体的上侧,所述喷气口旁设置有吸气口,所述吸气口与箱体内部连通,所述喷气口和吸气口上端覆盖有防漏罩,所述防漏罩上设置有手孔,所述开关装置为红外感应器。
优选的,所述喷气口处连接一段向外延伸的喷气管,所述开关装置 为箱体底部设置的踏板。
优选的,所述密闭空腔消毒鞋盒,所述消毒鞋盒体上转动连接电动滚刷,所述电动滚刷与待消毒鞋底相适配,所述消毒鞋盒体内、位于电动滚刷的下方设置有集尘盒,所述喷气口设置在电动滚刷的侧面,所述喷气口的吹气方向朝向待消毒鞋底方向,所述喷气口处设置有第二紫外光灯。
优选的,所述集尘盒的下方设置吸气风扇,所述吸气风扇与消毒鞋盒体内部连通、并向消毒鞋盒体内部吹气,所述集尘盒上表面的孔径大于下表面的孔径。
优选的,所述密闭空腔内设置有第二紫外光灯和第二催化剂网板,所述第二紫外光灯与第二催化剂网板相对应,所述第二紫外光灯处设置有负离子发生器;所述消杀气体生成装置生成的消毒雾气,经过第二紫外光灯、第二催化剂网板和负离子发生器后排出。
优选的,所述第二催化剂网板交错布置形成S形通道,所述负离子发生器交错均布在S形通道内;所述消毒雾气经由S形通道后排入到加热腔,所述加热腔内设置有远红外加热器,所述远红外加热器与第三催化剂板相对应。
优选的,所述消杀气体生成装置设置在消杀腔中,所述第二紫外光灯、负离子发生器和远红外加热器设置在降解腔中;贯通于消杀腔和降解腔设置有运输带,所述第二紫外光灯和负离子发生器设置在运输带的上方,所述远红外加热器设置在运输带的下方;所述消杀气体生成装置产生的雾气,经由消杀腔进入降解腔,再经过远红外加热器循环进入到消杀腔中。
一种消毒消杀系统的消杀方法,包括以下步骤:
1)在第一预设时间内向密闭空腔中通入臭氧并对所述密闭空腔照射185nm波长和254nm波长的紫外线进行第一阶段消杀;
2)在第一阶段消杀结束后,在第二预设时间内向所述密闭空腔内 多次通入消杀气体生成装置生成的消毒雾气进行第二阶段消杀;或在第一阶段消杀开始后,向所述密闭空腔通入消杀气体生成装置生成的消毒雾气,并在第一阶段消杀结束之前停止通入消毒雾气;
3)若臭氧和消毒雾气分阶段通入,则重复所述第一阶段消杀和第二阶段消杀,直至重复次数达到预设次数;
4)在步骤3)结束后,在第三预设时间内对所述密闭空腔加热并照射254nm波长的紫外线进行第三阶段消杀。
优选的,所述第一预设时间为10-40min,所述第二预设时间为5-10min,所述第三预设时间为10-20min;若在第一阶段消杀结束后通入消毒雾气,则通入消毒雾气的次数为两次,每次持续30-60/s,两次通入消毒雾气的时间间隔为2min;若在第一阶段消杀开始后通入消毒雾气,则在第一阶段开始10min后通入,通入的时间为10min。
一种消毒消杀系统的控制装置,所述控制装置包括处理器和存储器,所述存储器中存储有计算机程序,所述处理器用于执行所述计算机程序以实现上述消杀方法的步骤
本发明的有益之处在于:
1)本发明通过曝气管将臭氧溶解于水中,形成臭氧水,并经过超声雾化器产生臭氧水雾,臭氧水雾再次与臭氧相结合,并经过紫外光灯的激发,形成含有活性氧和羟基自由基的气液混合消毒干雾,利用消毒干雾的强氧化性对物品进行消毒杀菌,可以避免传统的化学消杀所产生的化学残留;且采用臭氧和羟基自由基混合进行消杀,对人体友好,不会产生副作用;
2)本发明的消杀气体生成装置中设置的紫外光灯,根据不同的使用需求,可以采用254nm单波段紫外光灯,或185nm/254nm双波段紫外光灯,分别起到降解臭氧和激发臭氧的作用,当装置中臭氧浓度过高时,为避免多余臭氧泄露,可以采用254nm单波段紫外光灯;若为增强氧化功能,则可以采用185nm/254nm双波段紫外光灯,从而加强氧化作用, 该装置根据应用场景的不同,可灵活设置。
3)本发明的消杀气体生成装置可以结合密闭腔体、半密闭腔体使用,当结合密闭腔体使用时,可将待消杀物品直接放入在密闭腔体中进行消杀;当结合半密闭腔体时,使得消杀气体生成装置产生的消毒雾气喷出腔体外部,对外部物品进行消杀,或应用于移动物品的消杀中;本发明的消杀气体生成装置对环境友好,应用范围广。
4)本发明的消杀气体生成装置还可以结合光电耦合降解模块,即负离子发生器以及紫外光灯的结合,能够彻底降解伴随消毒雾气产生的多余臭氧,彻底排除了臭氧泄露隐患,提高设备整体安全性,紫外光灯的设置也可以根据需要采用254nm单波段紫外光灯,或185nm/254nm双波段紫外光灯,从而获得增强氧化或者降解臭氧的功能;光电耦合是一种基于光催化与负氧离子发生器协同作用,通过高压静电及特殊波段光波激发催化剂,吸附相关反应原子,促进化学反应加速进行的技术;通过该技术可以产生较高浓度的活性自由基粒子,作用于化学原子或者生物大分子,促进分子键打开及促使生物大分子变性失活,从而达到快速降解及消毒灭菌的效果。
5)本发明的消毒雾气的粒径可控,本发明中通过采用40MHz频率高振幅超声雾化器进行超声雾化,控制消毒雾气的颗粒直径达到<5μm,从而使得喷出的消毒雾气形成白色干雾,人体手部接触时,没有潮湿感,达到无水化消毒,使得在对物品进行消毒杀菌时,在物品的表面不会形成凝结水珠,从而影响物品的使用。
附图说明
图1为消杀气体生成装置的结构示意图;
图2为废弃物转运车的结构示意图;
图3为消毒垃圾桶的结构示意图;
图4为喷雾消毒车的结构示意图;
图5为便携式喷雾消毒器的结构示意图;
图6为双头喷雾消毒器的结构示意图;
图7为果蔬生鲜消毒器的结构示意图;
图8为鞋底消毒器的结构示意图;
图9为冷链货物消毒装置的结构示意图;
图10为一种消杀方法的流程图;
图11为另一种消杀的流程图。
图中:1-第一臭氧发生器,2-第二臭氧发生器,3-水槽,4-超声雾化器,5-蜂窝曝气管,6-第一紫外光灯,7-第一催化剂板,8-格挡板,9-密闭空腔,11-消杀气体生成装置,14-第二催化剂网板,15-第二紫外光灯,101-厢门,102-排气孔,104-热风机,131-内筒,132-收集袋,171-弯管,181-入水口,183-蓄水箱,184-浮球水位开关,185-防漏罩,186-手孔,187-红外感应器,188-喷气管,189-踏板,191-电动滚刷,192-集尘盒,193-吸气风扇,201-负离子发生器,202-加热腔,203-远红外加热器,204-消杀腔,205-降解腔,206-运输带,207-第三催化剂板。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白,以下结合实施例,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
臭氧在常温、常压下分子结构不稳定,很快自行分解成氧气和单个氧原子,单个氧原子具有很强的活性,其氧化能力强,可直接作用于细菌、病毒及挥发性有机气体,起到杀菌消毒的作用,是一种绿色的消毒剂,用臭氧“溶”于水过程中产生的羟基自由基能增强臭氧水的杀毒灭菌效果,羟基自由基的氧化电位为2.80eV,仅次于氟2.87eV,具有极强的氧化性,水汽在紫外灯和光催化网的协同作用下能够产生羟基自由基。因此,本发明采用臭氧、光催化网板和紫外灯,组成了不需要添加消毒剂或者杀菌剂的消毒系统,本发明的消毒系统具有环保、无化学 残留等优点。
如图1所示,是一种消杀气体生成装置,包括羟基自由基生成部、混合部和增强部,所述羟基自由基生成部内产生的羟基自由基雾气进入到混合部后与臭氧混合,所述混合部与增强部连通,使混合后的雾气再进入增强部,所述增强部内设置有用于激发和/或降解臭氧的紫外光灯,图1中箭头所示方向即为消杀雾气产生、流动方向。
所述羟基自由基生成部包括第一臭氧发生器1,所述第一臭氧发生器1与混气装置连接,混气装置包括曝气管、射流器或涡流泵,本发明的一种实施方式为蜂窝曝气管5;第一臭氧发生器1产生的臭氧和水在混气装置中混合,再经过雾化装置形成臭氧水雾,本发明中的雾化装置为超声雾化器;所述混合部内设有第二臭氧发生器2,所述增强部包括第一紫外光灯6,所述第一紫外光灯6与第一催化剂板7对应设置。
在本实施例中,蜂窝曝气管5置于水槽3中,所述水槽3内设置有超声雾化器4,所述蜂窝曝气管5与第一臭氧发生器1连接,空气通过进风口进入到自由基雾气生产装置的第一臭氧发生器1中,第一臭氧发生器1为管式臭氧发生器,空气经过管式臭氧发生器转化为低浓度臭氧,再将臭氧通过蜂窝曝气管通入到水槽3中,能够极大的增加臭氧与水的接触面积,使得产生的臭氧最大程度的溶解于水中,形成臭氧水,并且降低逸散在空气中的臭氧浓度(浓度<20mg/m 3);臭氧水再经过40MHz频率高振幅超声雾化器4的作用,将臭氧水雾化成臭氧水雾,通过控制振荡频率,从而控制臭氧水雾的粒径,使得臭氧水雾的粒径<5μm,形成白色干雾;白色干雾飘散在装置内部,与第二臭氧发生器2产生的臭氧再次融合,第二臭氧发生器2采用管式臭氧发生器,再次融合后进一步提高消毒雾气中臭氧的含量,使得其能够产生大量的羟基自由基和氧自由基,同时降低臭氧浓度<60mg/m 3,通过大量的羟基自由基和氧自由基提高氧化作用。
混气装置还可以为射流器或涡流泵,通过将臭氧与水混合后,再经 过可以直接与管道连接的雾化装置的雾化形成臭氧水雾,雾化装置为现有技术,此处不再赘述,本发明中使用的雾化装置为超声雾化器4。
消杀气体生成装置内还设置有第一紫外光灯6,所述第一紫外光灯6与第一催化剂板7对应设置,融合后的消毒雾气经过第一紫外光灯6的激发,可以增强氧化或者降解多余臭氧,当采用254nm单波段紫外光灯时,具有降解臭氧的作用,可以将产生的多余臭氧进行降解,降解后的臭氧含有羟基自由基,使得消毒雾气能够达到消杀目的的同时,保证臭氧不会外泄对人体造成影响;当采用185nm/254nm双波段紫外光灯时,具有激发臭氧的作用,能够激发产生更多的臭氧,使得消毒雾气中同时含有臭氧和羟基自由基,增强其氧化消杀作用,此时可以再配合臭氧降解装置,对消杀后的多余臭氧进行降解,使得臭氧能够达标排放,不会对环境和人体造成影响。
进一步的技术方案是,所述第一臭氧发生器1和水槽3设置在发生腔11中,所述第一紫外光灯6与第一催化剂板7设置在增强腔12中;自由基水雾生成装置内设置有数个格挡板8,数个所述格挡板8交错布置形成S形混合通道,S形混合通道可以使得臭氧与臭氧水雾再次混合,能够提高臭氧在臭氧水雾中的混合能力,从而提高消毒雾气的消杀能力;S形混合通道的入口分别与发生腔11的出口和第二臭氧发生器2连通,S形混合通道的出口与增强腔12的入口连通。
下表是以采用185nm/254nm双波段紫外光灯,第一臭氧发生器1为2-5g的臭氧发生器,第二臭氧发生器2为10g的臭氧发生器为例,在不同实施例中,所检测到的不同位置臭氧浓度以及消杀能力对比。也可以根据实际的使用需求,更换第一臭氧发生器1和第二臭氧发生器2从而满足产生臭氧的浓度。
Figure PCTCN2021077844-appb-000001
上表中,氧化能力评级分为1-5级,1级氧化能力最强,也即消杀能力最优,氧化能力分级方法如下:
通过将试纸放置于本发明的装置中进行氧化处理,将处理后的氧化试纸与放置之前的颜色做对比,采用色差仪进行测量,根据色差计国家标准《中华人民共和国国家计量检定规程》中的色差分级进行色差判断,颜色越浅的氧化能力越强,颜色越深的氧化能力越弱。
采用3%的过氧化氢雾化消毒,并通过氧化能力分级方法,进行氧化分级,通过色差判断,采用3%的过氧化氢雾化消毒氧化能力分级为2级,单元枯草芽孢杆菌表面消毒杀灭率为98.62%。
消杀气体生成装置可以应用在多种场合,与多种装置相结合,组成消毒消杀系统,可以结合密闭空间使用,将待消杀物品置于密闭空间中,使得消毒雾气对其进行消毒消杀,使用时,可以通过空压机,增强密闭空间的正压,从而增强消毒雾气在废物中的渗透,正压为100-600Pa;也可以结合半密闭/无密闭空间使用,使得消毒雾气喷出,对周围的环境、物品或人体进行消毒消杀。
实施例一
消杀气体生成装置设置在密闭空腔9中,所述消杀气体生成装置的出气口与密闭空腔9连通。
如图2所示,是一种废弃物转运车,特别适用于医疗废弃物上,所述密闭空腔9为设置在运输车后部的车厢,所述车厢内盛放待消杀物品,所述车厢上设置有厢门101,所述厢门101上设置有厢门电磁锁102;所述车厢10内设置有臭氧传感器,所述车厢上侧设置有排气孔,所述车厢内靠近排气孔的位置设置有热风机104。
臭氧传感器用于检测臭氧的浓度,设定一个不会使人体受到伤害的安全临界值,如果臭氧传感器检测到车厢10内臭氧的浓度高于安全临界值,则通过系统控制厢门电磁锁产生磁力锁住厢门101;如果车厢10内臭氧的浓度高于安全临界值时需要打开厢门101,系统会启动热风机104吹出热风,使臭氧分解,并通过排气孔102排出,可以理解的是,排气孔102处设置有排气扇和电磁阀门,从而使得排气孔102打开和排气,降低臭氧的浓度至安全临界值以下。
实施例二
如图3所示,所述密闭空腔9为消毒柜,所述消毒柜内设置有内筒131,所述内筒131内套设有收集袋132,所述收集袋132内盛放待消杀物品;所述自由基水雾生成装置设置在消毒柜的下侧,所述自由基水雾生成装置产生的自由基雾气经由内筒131与消毒柜侧壁之间的间隙,进入到收集袋132中。
本实施例的消毒柜特别适用于医疗废弃物,使用时,将待消杀的物品放入到收集袋132中,放入到收集袋132中后,关闭消毒柜的盖子或门,必要时,盖子或门与消毒柜之间可以采用锁扣或者磁吸的方式保持密封状态,使得消毒雾气进入到收集袋132中,对其中的物品进行消杀,待消杀完成后,直接将收集袋132整体取出丢弃即可,再更换新的收集袋132。
实施例三
消杀气体生成装置与半密闭空间相结合的实施例为,将消杀气体生成装置产生的消杀雾气喷出,
所述密闭空腔9的侧壁上设置有喷气口,喷气口味便携式喷雾消毒器的喷气口,所述喷气口处设置有排气扇,从喷气口处可以喷出消毒雾气对周围环境或者人体部位进行消毒消杀,由于直接作用于人体,因此臭氧含量可以进行一定量的降低,从而保证对人体不会造成影响。
所述密闭空腔9中设置有第二紫外光灯15和第二催化剂网板14,所述第二紫外光灯15与第二催化剂网板14相对应;或所述密闭空腔9中设置有第二紫外光灯15。通过第二紫外光灯15与第二催化剂网板14的设置,能够对产生的臭氧进行降解,也可以对臭氧进行激发,提高氧化消杀的能力。
如图4所示,所述密闭空腔9为小车,是一种喷雾消毒车,能够对周围的空气喷出消毒雾气,从而对周围的环境进行消杀,所述小车的侧壁上设置有喷气口,所述第二紫外光灯15和第二催化剂网板14设置在喷气口处、并覆盖整个喷气口,所述喷气口与弯管171连接,所述弯管171可相对于喷气口转动。
弯管171可以采用较粗的敞口管,通过改变弯管171的方向,可以改变喷雾的方向,满足不同方向的使用需求,进行大面积消杀,从而降低空气中病毒的传播,也可以直接作用在地面上,通过小车的行走,对地面上的病菌进行消杀。弯管171可以拆卸,也可以根据需求更换成双 头、三头等各种类型的喷头。
也可以在小车的顶部设置储水槽,通过储水槽为消杀气体生成装置中的水槽3补水。
实施例四
如图5所示,所述密闭空腔9为箱体,体积小巧可以制作成便携式喷雾消毒器,便于抬放,可以直接放置在医院中或者商场中,用于对人的手部进行消毒杀菌。
所述第二紫外光灯15和第二催化剂网板14设置在喷气口处;所述喷气口旁设置有入水口181,所述入水口181与蓄水箱183连通,所述蓄水箱183与消杀气体生成装置的水槽3连通,所述蓄水箱183设置在水槽3上方,所述水槽3内设置有浮球水位开关184;所述喷气口处的排气扇与开关装置连接。
开关装置可以采用电开关,如红外感应器,也可以采用机械开关;使用时,使用者只需将手伸到喷气口的上方,此时接通消毒器内部电路,产生消毒雾气,吹到使用者的手部,对使用者手部进行消毒杀菌。
该便携式喷雾消毒器也可以作为室内的空气进化装置使用,通过不断的吸入室内的空气,在消毒器内部与消毒雾气进行混合消杀后,再从喷气口处排出即可。
实施例五
如图6所示,为一种洗手消毒器,与实施例五不同之处在于,所述喷气口设置在箱体的上侧,此例中所述喷气口旁设置有吸气口,所述吸气口与箱体内部连通,所述喷气口和吸气口上端覆盖有防漏罩185,所述防漏罩185上设置有手孔186,所述开关装置为红外感应器187。
使用时,使用者只需将手从手孔186处伸入到防漏罩185中,此时触发红外感应器187,产生消毒雾气,最终吹到使用者的手部,对使用者手部进行消毒杀菌,消毒杀菌后的雾气再经过吸气口被吸回到消毒器内部,从而使得整个装置的消毒杀菌的过程处于封闭的空间中,喷气口 喷出消毒雾气,再通过吸气口将消毒后的雾气收集,不但能够节约用水和能耗,且无臭氧泄露,不会对环境造成二次污染。
实施例六
如图7所示,与实施例五、实施例四的不同之处在于,本实施例中,在所述喷气口处连接一段向外延伸的喷气管188,所述开关装置为箱体底部设置的踏板189。喷气管188可以根据需要的长度设置,通过踩踏踏板189开启装置,生成消毒雾气,使得消毒雾气从喷气管188中喷出,喷气管188可以采用软管或硬管。
本实施例特别适用于对果蔬、生鲜进行消杀,由于雾气为干雾,没有潮湿感,不会对果蔬生鲜的表面造成影响,使得残留的水珠影响果蔬生鲜的保质期。使用时,操作人员可直接手持装食品的袋子,将喷气管188从袋口部插入,踩踏踏板189,产生消毒雾气进行消杀,消杀完成后,停止踩踏并直接将袋口扎紧即可。
实施例七
如图8所示,所述密闭空腔9消毒鞋盒,是一种鞋底消毒装置,所述消毒鞋盒体上转动连接电动滚刷191,所述电动滚刷191与待消毒鞋底相适配,所述消毒鞋盒体内、位于电动滚刷191的下方设置有集尘盒192,所述喷气口设置在电动滚刷191的侧面,所述喷气口的吹气方向朝向待消毒鞋底方向,所述喷气口处设置有第二紫外光灯15。
电动滚刷191可采用硬质毛刷,也可以采用海绵刷,使用者将鞋放置在电动滚刷191上时,通过手动开关的方式或者红外感应的方式打开,此时自动产生消毒气雾对使用者的鞋底进行消毒杀菌,并将使用者鞋底上的灰尘以及泥垢通过电动滚刷191吸收至集尘盒192中,从而达到清洁消毒的作用。
实施例八
与实施例七的不同之处在于,在所述集尘盒192的下方设置吸气风扇193,所述吸气风扇193与消毒鞋盒体内部连通、并向消毒鞋盒体内 部吹气,所述集尘盒192上表面的孔径大于下表面的孔径。
吸气风扇193将鞋底的灰尘以及污染的空气一起吸入到集尘盒192中,灰尘被集尘盒192收集,有污染的空气进入到装置内部,与消毒雾气进行混合,消毒雾气能够对污染的、带有病菌的空气进行杀菌处理,处理完的干净空气又流经第二紫外光灯15、从喷气口处吹向鞋底,对鞋底进行消毒杀菌,如此形成循环的消毒气雾。
实施例九
如图9所示,当消毒消杀装置较大时,如货物消杀装置,消杀气体生成装置可以与光电耦合装置组合使用,通过光电耦合装置对产生的多余臭氧进行降解,从而达标排放。光电耦合装置是一种基于光催化与负氧离子发生器协同作用,通过高压静电及特殊波段光波激发催化剂,吸附相关反应原子,促进化学反应加速进行的技术;通过该技术可以产生较高浓度的活性自由基粒子,作用于化学原子或者生物大分子,促进分子键打开及促使生物大分子变性失活,从而达到快速降解及消毒灭菌的效果。
光电耦合装置包括密闭空腔9内设置的第二紫外光灯15和第二催化剂网板14,所述第二紫外光灯15与第二催化剂网板14相对应,所述第二紫外光灯15处设置有负离子发生器201;所述消杀气体生成装置生成的消毒雾气,经过第二紫外光灯15、第二催化剂网板14和负离子发生器201后排出,负离子发生器201具有吸附作用,可以吸附多余的臭氧于负离子发生器201的表面,从而加强紫外光灯对臭氧的降解能力。
使用时,货物首先经过消毒雾气的消杀,消毒雾气消杀完成后,多余的高浓度臭氧可以通过第二紫外光灯15、第二催化剂网板14和负离子发生器201的协同降解作用,进行降解,从而保证从出口处运出货物时,不会有臭氧的泄露和溢出。
实施例十
与实施例九不同之处在于,本实施例中,所述第二催化剂网板14 交错布置形成S形通道,所述负离子发生器201交错均布在S形通道内;所述消毒雾气经由S形通道后排入到加热腔202,所述加热腔202内设置有远红外加热器203,所述远红外加热器203与第三催化剂板203相对应。
S形通道的设置,能够使得消毒雾气降解的更加完全,经过降解后的消毒雾气,还会有部分残留臭氧,通过加热腔202,进一步进行臭氧降解,降解完成后可直接排放到空气中。
实施例十一
与实施例十和实施例九不同之处在于与,所述消杀气体生成装置设置在消杀腔204中,所述第二紫外光灯15、负离子发生器201和远红外加热器203设置在降解腔205中;贯通于消杀腔204和降解腔205设置有运输带206,所述第二紫外光灯15和负离子发生器201设置在运输带206的上方,所述远红外加热器203设置在运输带206的下方;所述消杀气体生成装置产生的雾气,经由消杀腔204进入降解腔205,再经过远红外加热器203循环进入到消杀腔204中。
使用时,货物经由运输带206进入到消杀装置内部,先经过消杀腔204,通过消杀气体生成装置产生的消毒雾气对货物进行一次消杀后,货物进入到降解腔205中,降解腔205对多余的臭氧进行降解,使得降解后的臭氧进一步产生活性自由基,并将降解后的雾气吹向货物方向,对货物进行二次消杀;经过二次消杀的雾气再从运输带206的下方经过红外加热器203的最后加热降解,红外加热器203所能达到的温度为40-50℃,并在此循环进入到消杀腔204中,参与新一轮的消毒消杀。本实施例特别适用于冷链货物的消杀。
下表为通过光电耦合装置进行臭氧降解(采用第二紫外光灯15、负离子发生器201和远红外加热器203)时,采用负离子发生器和不采用负离子发生器的情况下,对于臭氧的降解能力对比。
Figure PCTCN2021077844-appb-000002
从上表中可以看出,当采用负离子发生器时,能够使得臭氧降解的更加完全,臭氧残留量更低,能够达标排放,在货物出口处,也不会对人体造成影响。
实施例十二
一种消毒消杀系统的消杀方法,包括以下步骤:
1)在第一预设时间内向密闭空腔中通入臭氧并对所述密闭空腔照射185nm波长和254nm波长的紫外线进行第一阶段消杀;
2)在第一阶段消杀结束后,在第二预设时间内向所述密闭空腔内多次通入消杀气体生成装置生成的消毒雾气进行第二阶段消杀;
3)重复所述第一阶段消杀和第二阶段消杀,直至重复次数达到预设次数,预设次数可以根据防疫废弃物的危害等级来设定,危害等级越高,则预设次数越多;
4)在步骤3)结束后,在第三预设时间内对所述密闭空腔加热并照射254nm波长的紫外线进行第三阶段消杀;加热可以提升空间内的温度,加速分解臭氧,以达到消除臭氧的目的,并且还可以产生新的活性自由基,加热的同时照射紫外线可以进一步灭活残留的病毒,可以进一步强化消杀效果。在本实施例中,对密闭空间进行加热的方式为采用红外线加热器进行加热。
在第三阶段消杀结束后,采集密闭空间的臭氧浓度,在臭氧浓度低于安全阈值时,控制电控门锁解锁,在臭氧浓度不低于安全阈值时,重复第三阶段消杀。
其中,臭氧浓度可以通过相应的传感器采集。安全阈值可以根据实际需要设定,例如为2ppm。臭氧浓度低于安全阈值时,电控门锁才能解锁,密闭空间才能打开,否则将重复第三阶段消杀,直到臭氧浓度低于安全阈值为止。
参阅图10,是本实施例消杀方法的流程图,在本实施例中,第一预设时间为10分钟,第二预设时间为5-10分钟,第三预设时间为10-20分钟。通入消毒雾气的次数为2次,第四预设时间为30-60秒,第五预设时间为2分钟。在一个具体应用中,第一预设时间为10分钟,第二预设时间为5分钟,第三预设时间为10或15分钟。通入消毒雾气的次数为2次,第四预设时间为30秒,第五预设时间为2分钟。预设次数可以有三种选择,分别是1次、3次和7次,对于用户来说,三种预设次数分别对应三个消杀模式,分别是轻度消杀模式,中度消杀模式和重度消杀模式,在轻度消杀模式中,第三预设时间为10分钟,在中度消杀模式和重度消杀模式中,第三预设时间为15分钟。
用户在操作消杀设备时,首先需要选择消杀模式,如果不选择,则消杀设备默认选择轻度消杀模式。
轻度消杀模式总耗时40分钟,其流程为:
从0到10分钟,向密闭空间通入臭氧并对密闭空间照射185nm波长和254nm波长的紫外线进行第一阶段消杀;
从第10分钟到15分钟,向密闭空间2次通入消毒雾气进行第二阶段消杀,其中,每次通入消毒雾气的持续时间为30秒,每次消毒雾气通入后暂停2分钟;
从第15分钟到30分钟,重复1次第一阶段消杀和第二阶段消杀;
第30分钟到40分钟,对密闭空间加热并照射254nm波长的紫外线进行第三阶段消杀。
中度消杀模式总耗时1小时15分钟,其流程为:
从0到10分钟,向密闭空间通入臭氧并对密闭空间照射185nm波 长和254nm波长的紫外线进行第一阶段消杀;
从第10分钟到15分钟,向密闭空间2次通入消毒雾气进行第二阶段消杀,其中,每次通入消毒雾气的持续时间为30秒,每次消毒雾气通入后暂停2分钟;
从第15分钟到60分钟,重复3次第一阶段消杀和第二阶段消杀;
第60分钟到75分钟,对密闭空间加热并照射254nm波长的紫外线进行第三阶段消杀。
重度消杀模式总耗时2小时15分钟,其流程为:
从0到10分钟,向密闭空间通入臭氧并对密闭空间照射185nm波长和254nm波长的紫外线进行第一阶段消杀;
从第10分钟到15分钟,向密闭空间2次通入消毒雾气进行第二阶段消杀,其中,每次通入消毒雾气的持续时间为30秒,每次羟基自由基水雾通入后暂停2分钟;
从第15分钟到120分钟,重复7次第一阶段消杀和第二阶段消杀;
第120分钟到135分钟,对密闭空间加热并照射254nm波长的紫外线进行第三阶段消杀。
将本实施例的消杀方法与常规臭氧消毒法对同样数量的模拟废弃物进行消杀测试,按照卫生部《消毒技术规范》2002版,测试菌种采用枯草芽孢杆菌(ATCC6633)。取芽孢悬液,根据计数结果,调整菌液浓度至含菌量约为1×108cfu/mL~5×108cfu/mL。将经灭菌的载体片(滤纸或塑料织物)平铺于无菌平皿内,逐片滴加菌液。菌液滴加量每片为10μL。阴性对照加10μLPBS。将上述菌片放入无菌平皿中,然后放入密闭空间进行消杀处理不同时间,然后测试计算芽孢杀灭率,消杀测试数据见下表。
本实施例的消杀方法与常规臭氧消毒法的消杀测试数据
Figure PCTCN2021077844-appb-000003
Figure PCTCN2021077844-appb-000004
从表中可以看出,在同等臭氧浓度(45ppm)和消杀时间条件下,本实施例中的消杀方法对滤纸和织物表面的芽孢杆菌的消杀率高很多,这个结果也体现消毒雾气的强效杀菌能力,且能够很好扩散渗透进入纺织物表面,深层消杀细菌;而常规臭氧消毒法对芽孢杆菌的消杀能力不足,特别对塑料织物表面的细菌杀灭能力差,渗透能力不足,只有通过延长消杀时间和臭氧浓度,才能提高消杀率,即便如此,对织物表面的细菌消杀率也不高。另外,本实施例在延长消杀时间的情况下,可以实现芽孢杆菌100%杀灭,而且在密闭空间打开前,臭氧浓度已经降到安全浓度以下;而常规臭氧消毒法在消杀结束后仍然残留大量臭氧,一旦密闭空间打开,会影响操作人员安全。
实施例十三
与实施例十二的不同之处在于,本实施例中,为在第一预设时间内同时通入臭氧和消杀气体生成装置生成的消毒雾气,参阅图11,为本实施例的流程图,步骤如下:
1)在第一预设时间内向密闭空腔中通入臭氧并对所述密闭空腔照射185nm波长和254nm波长的紫外线进行第一阶段消杀;
2)在第一阶段消杀开始后,向所述密闭空腔通入消杀气体生成装置生成的消毒雾气,并在第一阶段消杀结束之前停止通入消毒雾气;
3)在第一阶段消杀结束后,在第二预设时间内对所述密闭空间加热并照射254nm波长的紫外线进行第二阶段消杀。
本实施例的处理方法在具体实施时,第一预设时间为20-40分钟,第二预设时间为20分钟。在进行第一阶段消杀期间,通入消毒雾气的持续时间为10分钟。消毒雾气可以在第一阶段消杀开始10分钟后通入。
用户在操作消杀设备时,无需过多操作,只需要打开电源,选择消杀开始按钮,消杀设备即可自动完成消杀,消杀时间为1小时,其流程为:
从0到40分钟,向密闭空间通入臭氧并对空间内照射185nm波长和254nm波长的紫外线进行第一阶段消杀;
从第10分钟到20分钟,向空间内通入消毒雾气;
从第40分钟到60分钟,对空间内加热并照射254nm波长的紫外线进行第二阶段消杀。
与实施例十三中的芽孢悬液样本相同,采用本实施例的消杀方法,所测得的数据如下表。
本实施例的处理方法与常规臭氧消毒法的消杀测试数据
Figure PCTCN2021077844-appb-000005
Figure PCTCN2021077844-appb-000006
实施例十四
一种消毒消杀系统的控制装置,所述控制装置包括处理器和存储器,所述存储器中存储有计算机程序,所述处理器用于执行所述计算机程序以实现上述消杀方法的步骤。
其中,处理器可以是CPU(Central Processing Unit,中央处理单元)。也可以是一种集成电路芯片,具有计算(包括判断)和控制能力,处理器还可以是通用处理器、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或其他可编程逻辑器件、分立门或晶体管逻辑器件,或者分立硬件组件等,在此不作具体限定。通用处理器可以是微处理器或者任何常规的处理器等。
存储器可以是任何电子、磁性、光学或其它物理存储装置,可以包含或存储信息,如可执行指令、数据,等等。例如存储器可以包括RAM(Random Access Memory,随机存取存储器),易失存储器、NVM(Non-Volatile Memory,非易失性存储器),闪存、存储驱动器(如硬盘驱动器)、固态硬盘、任何类型的存储盘(如光盘、dvd等),或者类似的存储介质,或者它们的组合。
上述实施方式是优选的实施方式,应当指出的是,上述优选实施方 式不应视为对发明的限制,本发明的保护范围应当以权利要求所限定的范围为准。对于本技术领域的普通技术人员来说,在不脱离本发明的精神和范围内,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。

Claims (19)

  1. 一种消杀气体生成装置,其特征在于:包括羟基自由基生成部、混合部和增强部,所述羟基自由基生成部内产生的羟基自由基雾气进入到混合部后与臭氧混合,所述混合部与增强部连通,使混合后的雾气再进入增强部,所述增强部内设置有用于激发和/或降解臭氧的紫外光灯。
  2. 根据权利要求1所述的消杀气体生成装置,其特征在于:所述羟基自由基生成部包括第一臭氧发生器(1),所述第一臭氧发生器(1)与混气装置连接,第一臭氧发生器(1)产生的臭氧和水在混气装置中混合,再经过雾化装置形成臭氧水雾;所述混合部内设有第二臭氧发生器(2),所述增强部包括第一紫外光灯(6),所述第一紫外光灯(6)与第一催化剂板(7)对应设置。
  3. 根据权利要求1或2所述的消杀气体生成装置,其特征在于:所述混气装置为蜂窝曝气管(5),所述蜂窝曝气管(5)设置在水槽(3)中,所述水槽(3)中设置有雾化装置,所述雾化装置为超声雾化器;所述混合部内设置有数个格挡板(8),数个所述格挡板(8)交错布置形成混合通道;混合通道的入口分别与羟基自由基生成部和第二臭氧发生器(2)的出口连通,混合通道的出口与增强部的入口连通;所述第一紫外光灯(6)为254nm单波段紫外光灯,或185nm/254nm双波段紫外光灯。
  4. 一种消毒消杀系统,其特征在于:包括消杀气体生成装置(11),所述消杀气体生成装置(11)设置在密闭空腔(9)中,或与密闭空腔(9)连通,所述消杀气体生成装置(11)产生的消毒雾气充满于密闭空腔(9)的内部。
  5. 根据权利要求4所述的消毒消杀系统,其特征在于:所述密闭空腔(9)为设置在运输车后部的车厢(10),所述车厢内盛放待消杀物品,所述车厢上设置有厢门(101),所述厢门(101)上设置有厢门电磁锁;所述车厢(10)内设置有臭氧传感器,所述车厢上侧设置有排气孔(102),所述车厢内靠近排气孔的位置设置有热风机(104)。
  6. 根据权利要求4所述的消毒消杀系统,其特征在于:所述密闭空腔(9)为消毒柜,所述消毒柜内设置有内筒(131),所述内筒(131)内套设有收集袋(132),所述收集袋(132)内盛放待消杀物品;所述消杀气体生成装置(11)设置在消毒柜的下侧,所述消杀气体生成装置(11)产生的自由基雾气经由内筒(131)与消毒柜侧壁之间的间隙,进入到收集袋(132)中。
  7. 根据权利要求4所述的消毒消杀系统,其特征在于:所述密闭空腔(9)的侧壁上设置有喷气口,所述喷气口处设置有排气扇,所述密闭空腔(9)中设置有第二紫外光灯(15)和第二催化剂网板(14),所述第二紫外光灯(15)与第二催化剂网板(14)相对应;或所述密闭空腔(9)中设置有第二紫外光灯(15)。
  8. 根据权利要求7所述的消毒消杀系统,其特征在于:所述密闭空腔(9)为小车,所述小车的侧壁上设置有喷气口,所述第二紫外光灯(15)和第二催化剂网板(14)设置在喷气口处、并覆盖整个喷气口,所述喷气口与弯管(171)连接,所述弯管(171)可相对于喷气口转动。
  9. 根据权利要求7所述的消毒消杀系统,其特征在于:所述密闭空腔(9)为箱体,所述第二紫外光灯(15)和第二催化剂网板(14)设置在喷气口处;所述喷气口旁设置有入水口(181),所述入水口(181)与蓄水箱(183)连通,所述蓄水箱(183)与消杀气体生成装置的水槽(3)连通,所述蓄水箱(183)设置在水槽(3)上方,所述水槽(3)内设置有浮球水位开关(184);所述喷气口处的排气扇与开关装置连接。
  10. 根据权利要求9所述的消毒消杀系统,其特征在于:所述喷气口设置在箱体的上侧,所述喷气口旁设置有吸气口,所述吸气口与箱体内部连通,所述喷气口和吸气口上端覆盖有防漏罩(185),所述防漏罩(185)上设置有手孔(186),所述开关装置为红外感应器(187)。
  11. 根据权利要求9所述的消毒消杀系统,其特征在于:所述喷气 口处连接一段向外延伸的喷气管(188),所述开关装置为箱体底部设置的踏板(189)。
  12. 根据权利要求7所述的消毒消杀系统,其特征在于:所述密闭空腔(9)消毒鞋盒,所述消毒鞋盒体上转动连接电动滚刷(191),所述电动滚刷(191)与待消毒鞋底相适配,所述消毒鞋盒体内、位于电动滚刷(191)的下方设置有集尘盒(192),所述喷气口设置在电动滚刷(191)的侧面,所述喷气口的吹气方向朝向待消毒鞋底方向,所述喷气口处设置有第二紫外光灯(15)。
  13. 根据权利要求12所述的消毒消杀系统,其特征在于:所述集尘盒(192)的下方设置吸气风扇(193),所述吸气风扇(193)与消毒鞋盒体内部连通、并向消毒鞋盒体内部吹气,所述集尘盒(192)上表面的孔径大于下表面的孔径。
  14. 根据权利要求4所述的消毒消杀系统,其特征在于:所述密闭空腔(9)内设置有第二紫外光灯(15)和第二催化剂网板(14),所述第二紫外光灯(15)与第二催化剂网板(14)相对应,所述第二紫外光灯(15)处设置有负离子发生器(201);所述消杀气体生成装置生成的消毒雾气,经过第二紫外光灯(15)、第二催化剂网板(14)和负离子发生器(201)后排出。
  15. 根据权利要求14所述的消毒消杀系统,其特征在于:所述第二催化剂网板(14)交错布置形成S形通道,所述负离子发生器(201)交错均布在S形通道内;所述消毒雾气经由S形通道后排入到加热腔(202),所述加热腔(202)内设置有远红外加热器(203),所述远红外加热器(203)与第三催化剂板(207)相对应。
  16. 根据权利要求15所述的消毒消杀系统,其特征在于:所述消杀气体生成装置设置在消杀腔(204)中,所述第二紫外光灯(15)、负离子发生器(201)和远红外加热器(203)设置在降解腔(205)中;贯通于消杀腔(204)和降解腔(205)设置有运输带(206),所述第 二紫外光灯(15)和负离子发生器(201)设置在运输带(206)的上方,所述远红外加热器(203)设置在运输带(206)的下方;所述消杀气体生成装置产生的雾气,经由消杀腔(204)进入降解腔(205),再经过远红外加热器(203)循环进入到消杀腔(204)中。
  17. 一种消毒消杀系统的消杀方法,其特征在于:包括以下步骤:
    1)在第一预设时间内向密闭空腔中通入臭氧并对所述密闭空腔照射185nm波长和254nm波长的紫外线进行第一阶段消杀;
    2)在第一阶段消杀结束后,在第二预设时间内向所述密闭空腔内多次通入消杀气体生成装置生成的消毒雾气进行第二阶段消杀;或在第一阶段消杀开始后,向所述密闭空腔通入消杀气体生成装置生成的消毒雾气,并在第一阶段消杀结束之前停止通入消毒雾气;
    3)若臭氧和消毒雾气分阶段通入,则重复所述第一阶段消杀和第二阶段消杀,直至重复次数达到预设次数;
    4)在步骤3)结束后,在第三预设时间内对所述密闭空腔加热并照射254nm波长的紫外线进行第三阶段消杀。
  18. 根据权利要求17所述的消毒消杀系统的消杀方法,其特征在于:所述第一预设时间为10-40min,所述第二预设时间为5-10min,所述第三预设时间为10-20min;若在第一阶段消杀结束后通入消毒雾气,则通入消毒雾气的次数为两次,每次持续30-60s,两次通入消毒雾气的时间间隔为2min;若在第一阶段消杀开始后通入消毒雾气,则在第一阶段开始10min后通入,通入的时间为10min。
  19. 一种消毒消杀系统的控制装置,其特征在于:所述控制装置包括处理器和存储器,所述存储器中存储有计算机程序,所述处理器用于执行所述计算机程序以实现根据权利要求17或18所述的消杀方法的步骤。
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