Air blower type xenon excimer active oxygen cluster and hydrogen peroxide micro-fog sterilizer

Abstract

The utility model relates to a sterilizer using an air blower as gas power for mixed spraying of active oxygen cluster gas prepared by using a xenon excimer light source and a hydrogen peroxide dilute solution. A two-fluid nozzle or a one-fluid nozzle, an active oxygen cluster excitation cabin of a centralized transmission type xenon excimer active oxygen cluster generator, a xenon excimer light source, a Venturi tube, a peristaltic pump or a micro liquid pump, a gas container tank and an air blower are taken as basic components; the components are reasonably connected together through a liquid pipeline and / or a gas pipeline to form the air blower type xenon excimer active oxygen cluster and hydrogen peroxide micro-fog disinfector with an air blower type xenon excimer active oxygen cluster and hydrogen peroxide micro-fog disinfector framework. The purpose of the utility model is to improve the disadvantage of singly using a dilute solution hydrogen peroxide sprayer, and the xenon excimer reactive oxygen species and the dilute hydrogen peroxide solution are mixed and sprayed to realize the effect of quickly disinfecting the environment at high level.

Description

Background Art

[0002] In the spectrum, light below 200nm is called vacuum ultraviolet (VUV), which is a spectrum that can excite oxygen molecules and water molecules in the air to produce reactive oxygen species. Currently, the xenon excimer light source that can be used commercially can emit 172nm vacuum ultraviolet light, which can excite oxygen molecules and water molecules in the air to form a mixed gas of reactive oxygen species after irradiating the air. Another commercially available light source is the low-pressure mercury lamp. The low-pressure mercury lamp can emit 254nm short-wave ultraviolet light (UVB) and 185nm vacuum ultraviolet light (VUV). However, because the 185nm spectrum it emits is relatively weak, and the 254nm short-wave ultraviolet light it emits has a degrading effect on reactive oxygen species, the efficiency of the low-pressure mercury lamp in preparing reactive oxygen species is nearly 50 times lower than that of the xenon excimer light source.

[0003] In the technical field, the level of awareness of reactive oxygen species produced by VUV excitation of air is generally low. Also, due to the constraints of lagging technical regulations, some literature refers to reactive oxygen species produced by excitation of air with wavelengths below 200nm as "ozone", and confuses it with "ozone" prepared by artificial air discharge technology. Recent studies have confirmed from many aspects that these are two disinfection factors with different components and different disinfection effects. The results of GC-MS (gas chromatography-mass spectrometry) tests on the products after air discharge in this century show that the terminal molecular ion products after air discharge are mainly hydrated nitrate ion clusters (NO3 - (H2O) n The main terminal molecular ion product of the 172nm VUV light emitted by the xenon excimer light source after irradiation of air is the hydrated superoxide anion cluster (O2 - (H2O) n ), hydrated hydroxide ion clusters (OH - (H2O) n ), hydrated trioxide ion clusters (O3 - (H2O) n ). Their sterilization effects are also significantly different. For example, existing experiments have shown that when the ambient humidity is lower than 20%, the active oxygen clusters still have a 75% sterilization effect, while ozone has almost no sterilization effect in a 20% humidity environment. Therefore, the xenon excimer light source is a third-generation low-temperature sterilization technology that uses air as a raw material to prepare highly efficient and environmentally friendly sterilization substances (or sterilization factors) with excimer light sources as technical features.

[0004] Hydrogen peroxide is a conventional disinfectant, and there are currently two basic uses. One is to use a high concentration of hydrogen peroxide to flash evaporate to form hydrogen peroxide gas for disinfection. This disinfection method is called VHP (Vaporized Hydrogen Peroxide Sterilization). This method is currently widely used in disinfection cabinets as a high-efficiency disinfection factor. Its main representative product is the plasma hydrogen peroxide disinfector. Its basic working principle is to first use flash evaporation technology to vaporize hydrogen peroxide and enter it into the disinfection cabinet for disinfection, then add an electric field (called plasma) to degrade the remaining unacted residual hydrogen peroxide, and then inject a new round of hydrogen peroxide gas, and then apply an electric field to remove the remaining hydrogen peroxide, and so on. The cycle is repeated to achieve the final disinfection effect. VHP technology is currently recognized internationally as an efficient and environmentally friendly disinfection technology. However, due to the excessive power consumption of VHP, it is not suitable for disinfection of large environments and indoor environments. Therefore, one of the current methods of using hydrogen peroxide for environmental disinfection is spraying or atomizing a dilute hydrogen peroxide solution, which is actually using liquid hydrogen peroxide for disinfection, which is significantly different from the VHP method of using vaporized hydrogen peroxide for disinfection. Existing studies have shown that the disinfection effect of vaporized hydrogen peroxide is 200-1000 times higher than that of liquid hydrogen peroxide, so the disinfection effect of using liquid hydrogen peroxide is almost qualitatively different from that of using vaporized hydrogen peroxide.

[0005] In order to improve the disinfection effect of liquid hydrogen peroxide, hydrogen peroxide micro-mist spray disinfectors have appeared. This method uses high-pressure gas to entrain the micro-mist formed by the dilute hydrogen peroxide solution to spray and disinfect the indoor environment. Since hydrogen peroxide is a strong oxidant, high concentrations of hydrogen peroxide can cause violent decomposition or even explosion under direct sunlight or mixed with impurities such as dust. Therefore, regulations stipulate that the hydrogen peroxide solution used for spraying should be a 3% dilute hydrogen peroxide solution. At present, some hydrogen peroxide micro-mist disinfectors use about 7.5% dilute hydrogen peroxide solution for micro-mist spraying in order to improve the explosive disinfection effect of hydrogen peroxide and reduce the resulting high humidity.

[0006] Although hydrogen peroxide has long been considered the safest disinfectant, the risks to human health caused by long-term exposure to hydrogen peroxide still need to be taken seriously. Utility Model Content

[0007] The applicant has previously submitted a patent application for "Centralized Transmission Xenon Excimer Light Source Ozone Generator" (application number: 202010875608.4). The patent application describes placing a xenon excimer light source in a xenon excimer ozone excitation chamber constructed by a metal cavity container with vents at both ends, and connecting it to a pressure gas source supply device through a pipeline. The pressure gas source supply device can provide pressurized gas to the closed xenon excimer ozone excitation chamber. During the lighting of the xenon excimer light source, the ozone mixed gas generated in the closed xenon excimer ozone excitation chamber is transported along the pipeline under the action of air pressure. It should be noted that when submitting the patent application, subject to the constraints of existing laws and regulations, the disinfection factor generated by the xenon excimer light source radiating the air was called "xenon excimer ozone". Since this name cannot fully express the objective appearance of the disinfection factor generated, it was later modified to "xenon excimer active oxygen clusters", or "active oxygen clusters" for short.

[0008] The technical basis of the present invention is to combine the centralized transmission type xenon excimer light source active oxygen cluster generator technology with the hydrogen peroxide micro-mist spraying technology to form a design scheme of "xenon excimer active oxygen cluster and hydrogen peroxide micro-mist disinfector".

[0009] The technical solution of the xenon excimer active oxygen cluster and hydrogen peroxide micro-mist sterilizer is characterized in that it uses a blower as its power source. The blower-type xenon excimer active oxygen cluster and hydrogen peroxide micro-mist sterilizer has two basic physical structures, one is the basic physical structure using a two-fluid nozzle, and the other is the basic physical structure using a single-fluid nozzle.

[0010] The basic structure of the blower-type xenon excimer active oxygen cluster and hydrogen peroxide micro-mist disinfector is composed of an active oxygen cluster (ozone) excitation chamber of a two-fluid nozzle or a one-fluid nozzle, and / or a centralized transmission type xenon excimer active oxygen cluster (ozone) generator, a xenon excimer lamp (Xe), a venturi tube (jet tube), and / or a peristaltic pump (micro liquid pump), a gas container tank, and an OP blower (high-pressure centrifugal fan) as basic components. These main components are reasonably connected to each other through liquid pipes and / or gas pipes to form the basic physical structure of the blower-type xenon excimer active oxygen cluster and hydrogen peroxide micro-mist disinfector. Its working principle is that the xenon excimer light source uses air as the gas source, and when it is lit, it excites the air to produce active oxygen cluster gas, and under the action of the blower, a high-speed airflow of xenon excimer active oxygen clusters is formed. Aqueous hydrogen peroxide solution (or hydrogen peroxide silver ion disinfectant) is fed into a combination of a two-fluid nozzle or a one-fluid nozzle and a venturi tube (jet tube) under the action of a micro peristaltic pump (or a micro liquid pump); a high-speed airflow of xenon excimer active oxygen clusters is mixed with the aqueous hydrogen peroxide solution and then sprayed toward a disinfected space through the two-fluid nozzle or the one-fluid nozzle to form an active oxygen cluster hydrogen peroxide micro-mist; a suitable two-fluid nozzle or one-fluid nozzle is selected; the air pressure of the blower (high-pressure centrifugal blower) is adjusted to be greater than 3000Pa; the peristaltic pump (or micro liquid pump) is adjusted to make the flow rate of the aqueous hydrogen peroxide solution between 1ml / min and 50ml / min; a laser detection method (Franhall refraction method or Toppler method) is used to ensure that the average particle size of the sprayed active oxygen cluster hydrogen peroxide micro-mist is within the range of 20um-100um. In the basic structure of the blower-type xenon excimer reactive oxygen cluster and hydrogen peroxide mist sterilizer, the two-fluid nozzle is connected in parallel with the blower and only needs to be equipped with one Venturi tube. When it is connected in series with the blower, no Venturi tube is needed. The one-fluid nozzle is connected in parallel with the blower and needs to be equipped with two Venturi tubes. When it is connected in series with the blower, only one Venturi tube is needed.

[0011] Why is the average particle size of hydrogen peroxide micro-mist controlled within the range of 20um-100um? The applicant investigated various types of one-fluid nozzles and two-fluid nozzles that can be commercially purchased on the market and found that the nozzle that can spray the smallest particle size is the nozzle with an average particle size within the range of 20um-100um. The evaluation detection method is generally recognized to be more accurate using the Fran Hall refraction method or the Toppler method. However, most of the hydrogen peroxide micro-mist disinfectors that are currently on the market claim that the particle size of the micro-mist is 1um, which is actually inappropriate publicity, because the method of expressing the particle size of the micro-mist is generally expressed by the average particle size within a range. In addition, the accuracy of the equipment for particle size detection will vary greatly, and the detection method of the particle size of the micro-mist is not included in the corporate standards of most hydrogen peroxide micro-mist disinfectors. In addition, as mentioned above, what can significantly improve the disinfection ability of hydrogen peroxide is the dissociation of hydrogen peroxide into ground state oxygen (O) and hydroxyl radicals (HO·). Without this conversion, smaller droplets are indeed conducive to the oxidation of hydrogen peroxide, but it does not produce a significant improvement like VHP technology.

[0012] In the basic structure of the blower-type xenon excimer reactive oxygen cluster and hydrogen peroxide mist sterilizer, there is a significant technical feature that the use of a single-fluid nozzle in the structure requires an additional venturi tube than the use of a two-fluid nozzle.

[0013] The disinfectant used is an aqueous solution of hydrogen peroxide, or a hydrogen peroxide silver ion disinfectant, or a hydrogen peroxide zinc ion disinfectant, or water. Among them, the concentration of hydrogen peroxide is between 0.1% and 40%, and the optimal concentration is 3% and 7.5%; the concentration of hydrogen peroxide in hydrogen peroxide silver ion disinfectant (also called hydrogen peroxide silver ion chelating agent, or hydrogen peroxide silver ion complex, or Octasil disinfectant) is between 0.1% and 40%, and the concentration of silver ions is between 0.001% and 0.01%, and the optimal concentration is that the concentration of hydrogen peroxide is between 3% and 7.5%, and the concentration of silver ions is between 0.001% and 0.005%; the concentration of hydrogen peroxide in hydrogen peroxide zinc ion disinfectant is between 0.1% and 40%, and the concentration of zinc ions is between 0.001% and 0.01%, and the optimal concentration is that the concentration of hydrogen peroxide is between 3% and 7.5%, and the concentration of zinc ions is between 0.001% and 0.005%; the water can be tap water or purified water, and purified water is recommended.

[0014] An embedded MCU (microcontroller) digital control circuit is used to electrically control the active components in the xenon excimer reactive oxygen cluster and hydrogen peroxide micro-mist disinfector. The main control parameters include the lighting and extinguishing time of the xenon excimer light source lamp, the gas pressure of the air pressure tank, the flow rate of the peristaltic pump (micro liquid pump), and the control of the switching parameters of the air solenoid valve and the blower (high-pressure centrifugal fan).

[0015] For the embedded MCU (microcontroller) digital control circuit of the blower-type xenon excimer reactive oxygen species and hydrogen peroxide micro-mist disinfector, it shall ensure that the starting time of the blower supplying air to the reactive oxygen species excitation chamber is no less than 3 s earlier than the lighting time of the xenon excimer light source lamp tube, so as to ensure that there is an air flow passing through the surface of the xenon excimer light source lamp tube when the xenon excimer light source lamp tube is lit. Description of the Drawings

[0016] Figure 1 is the schematic diagram of the two-fluid nozzle parallel / blower-type xenon excimer reactive oxygen species and hydrogen peroxide micro-mist disinfector. In Figure 1 it, 1 is the reactive oxygen species hydrogen peroxide micro-mist (dry mist); 2 is the two-fluid nozzle; 3 is the injection port of the two-fluid nozzle; 4 is the inlet end of the two-fluid nozzle; 5 is the negative pressure inlet end of the two-fluid nozzle; 8 is the reactive oxygen species (ozone) excitation chamber of the centralized transmission type xenon excimer reactive oxygen species (ozone) generator; Xe is the xenon excimer lamp tube; 9 is the Venturi tube 1; 10 is the inlet end of the Venturi tube 1; 11 is the negative pressure inlet end of the Venturi tube 1; 12 is the peristaltic pump or liquid pump; 13 is the liquid container tank; 14 is hydrogen peroxide; OP is the blower (high-pressure centrifugal blower): 3000 Pa < H ≤ 15000 Pa; 19 is the front air chamber of OP; 20 is the blower and blower impeller of OP; G solid lines represent air pipelines; W double lines represent liquid pipelines; DB is the blower B.

[0017] Figure 2 is the schematic diagram of the one-fluid nozzle parallel / blower-type xenon excimer reactive oxygen species and hydrogen peroxide micro-mist disinfector. In Figure 2 it, 1 is the reactive oxygen species hydrogen peroxide micro-mist (dry mist); 8 is the reactive oxygen species (ozone) excitation chamber of the centralized transmission type xenon excimer reactive oxygen species (ozone) generator; Xe is the xenon excimer lamp tube; 9 is the Venturi tube 1; 10 is the inlet end of the Venturi tube 1; 11 is the negative pressure inlet end of the Venturi tube 1; 12 is the peristaltic pump or liquid pump; 13 is the liquid container tank; 14 is hydrogen peroxide; 16 is the Venturi tube 2; 17 is the inlet end of the Venturi tube 2; 18 is the negative pressure inlet end of the Venturi tube 2; OP is the blower (high-pressure centrifugal blower): 3000 Pa < H ≤ 15000 Pa; 19 is the front air chamber of OP; 20 is the blower and blower impeller of OP; 21 is the one-fluid nozzle; G solid lines represent air pipelines; W double lines represent liquid pipelines; DB is the blower B.

[0018] Figure 3 is the schematic diagram of the two-fluid nozzle series / blower-type xenon excimer reactive oxygen species and hydrogen peroxide micro-mist disinfector. In Figure 3In it, 1 is the reactive oxygen species hydrogen peroxide micro mist (dry mist); 2 is a two-fluid nozzle; 3 is the injection port of the two-fluid nozzle; 4 is the inlet end of the two-fluid nozzle; 5 is the negative pressure inlet end of the two-fluid nozzle; Xe is a xenon excimer lamp tube; 12 is a peristaltic pump or a liquid pump; 13 is a liquid container tank; 14 is hydrogen peroxide; OP is a blower (high-pressure centrifugal blower): 3000 Pa < H ≤ 15000 Pa; 19 is the front air cavity of OP; 20 is the blower and the blower impeller of OP; G solid lines represent air pipelines; W double lines represent liquid pipelines.

[0019] Figure 4 is the schematic diagram of a one-fluid nozzle series / blower type xenon excimer reactive oxygen species and hydrogen peroxide micro mist disinfector. In Figure 4 it, 1 is the reactive oxygen species hydrogen peroxide micro mist (dry mist); Xe is a xenon excimer lamp tube; 12 is a peristaltic pump or a liquid pump; 13 is a liquid container tank; 14 is hydrogen peroxide; 16 is Venturi tube 2; 17 is the inlet end of Venturi tube 2; OP is a blower (high-pressure centrifugal blower): 3000 Pa < H ≤ 15000 Pa; 19 is the front air cavity of OP; 20 is the blower and the blower impeller of OP; 21 is a one-fluid nozzle; G solid lines represent air pipelines; W double lines represent liquid pipelines. Detailed implementation manners

[0020] The present invention has been described in detail above. Obviously, those skilled in the art can make many improvements and changes without departing from the spirit scope of the present invention after being familiar with the present invention.

[0021] Example 1 Design of a two-fluid nozzle parallel / blower type xenon excimer reactive oxygen species and hydrogen peroxide micro mist disinfector.

[0022] Figure 1 is the schematic diagram of a two-fluid nozzle parallel / blower type xenon excimer reactive oxygen species and hydrogen peroxide micro mist disinfector. In the figure, 1 is the reactive oxygen species hydrogen peroxide micro mist (dry mist); 2 is a two-fluid nozzle; 3 is the injection port of the two-fluid nozzle; 4 is the inlet end of the two-fluid nozzle; 5 is the negative pressure inlet end of the two-fluid nozzle; 8 is the reactive oxygen species (ozone) excitation chamber of a centralized transmission type xenon excimer reactive oxygen species (ozone) generator; Xe is a xenon excimer lamp tube; 9 is Venturi tube 1; 10 is the inlet end of Venturi tube 1; 11 is the negative pressure inlet end of Venturi tube 1; 12 is a peristaltic pump; 13 is a liquid container tank; 14 is water or hydrogen peroxide (0.5% - 7.5%); G solid lines represent air pipelines; W double lines represent liquid pipelines; OP is a blower (high-pressure centrifugal blower): 3000 Pa < H ≤ 15000 Pa; 19 is the front air cavity of OP; 20 is the blower and the blower impeller of OP; DB is air pump B (miniature air pump).

[0023] The working principle is as follows: the first step is to prepare a high-pressure and high-speed reactive oxygen cluster airflow: after starting OP (blower) and DB (air pump B), the airflow generated by DB (air pump B) will enter the reactive oxygen cluster excitation chamber (8) of the centralized transmission type xenon excimer reactive oxygen cluster generator, and then pass through the surroundings of the xenon excimer light source lamp (Xe) to generate reactive oxygen cluster gas; the reactive oxygen cluster gas flowing out of the reactive oxygen cluster excitation chamber (8) of the centralized transmission type xenon excimer reactive oxygen cluster generator when the xenon excimer lamp (Xe) is lit enters the venturi tube 1 (9) through the negative pressure inlet end (11) of the venturi tube 1 (9), and then mixes with the high-pressure and high-speed airflow from OP (blower), and then is ejected from the venturi tube 1 (9) to form a high-pressure and high-speed reactive oxygen cluster airflow, and enters the two-fluid nozzle (2) from the inlet end (4) of the two-fluid nozzle (2); by controlling the lighting time of the xenon excimer lamp (Xe), the concentration of reactive oxygen clusters in the reactive oxygen cluster high-pressure and high-speed airflow can be controlled. The second step is to supply hydrogen peroxide solution: the peristaltic pump (12) is started, and the hydrogen peroxide aqueous solution (14) in the liquid container tank (13) can be pumped into the two-fluid nozzle (2) from the negative pressure inlet end (5) of the two-fluid nozzle. By adjusting the flow rate of the peristaltic pump (12), the amount of hydrogen peroxide aqueous solution pumped into the two-fluid nozzle (2) can be changed. The third step is to spray water vapor mist of hydrogen peroxide and active oxygen clusters: the hydrogen peroxide aqueous solution and the high-pressure and high-flow rate active oxygen cluster airflow merge in the inner cavity of the two-fluid nozzle (2) and are sprayed out from the spray port (3) of the two-fluid nozzle (2) to form active oxygen cluster hydrogen peroxide mist (1).

[0024] In the two-fluid nozzle parallel / blower type xenon excimer reactive oxygen cluster and hydrogen peroxide micro-mist disinfector, the control of the internal active electrical components is completed by the embedded MCU (microprocessor) digital circuit, wherein the main control parameters are the lighting and shut-off time of the xenon excimer light source lamp (Xe), the peristaltic pump flow rate, and the steam mist spraying time; wherein the turning-on time of OP (blower) and DB (air pump B) should be more than 3s earlier than the lighting time of the xenon excimer light source lamp (Xe), and the turning-off time should be more than 3s later than the turning-off time of the xenon excimer light source lamp (Xe), so as to ensure that there is airflow flowing over the surface of the lamp when the xenon excimer light source lamp is lit.

[0025] The design feature of the two-fluid nozzle parallel / blower type xenon excimer active oxygen cluster and hydrogen peroxide micro-mist sterilizer is that it only needs to be equipped with a venturi tube, and the steam mist injection time can be continuously sprayed for a long time.

[0026] Embodiment 2 A - Design of Fluid Nozzle Parallel / Blower Type Xenon Excimer Active Oxygen Cluster and Hydrogen Peroxide Micro-Mist Sterilizer

[0027] Figure 2It is a schematic diagram of a fluid nozzle parallel / blower-type xenon excimer reactive oxygen species and hydrogen peroxide micro-mist disinfector. In the figure, 1 is the reactive oxygen species hydrogen peroxide micro-mist (dry mist); 8 is the reactive oxygen species (ozone) excitation chamber of a centralized transmission-type xenon excimer reactive oxygen species (ozone) generator; Xe is the xenon excimer lamp tube; 9 is Venturi tube 1; 10 is the inlet end of Venturi tube 1; 11 is the negative pressure inlet end of Venturi tube 1; 12 is a peristaltic pump; 13 is a liquid container tank; 14 is water or hydrogen peroxide (0.5%-7.5%); 16 is Venturi tube 2; 17 is the inlet end of Venturi tube 2; 18 is the negative pressure inlet end of Venturi tube 2; The solid line G represents the gas pipeline; The double line W represents the liquid pipeline; OP blower (high-pressure centrifugal blower): 3000Pa < H ≤ 15000Pa; 19 is the front air chamber of OP; 20 is the blower and blower impeller of OP; DB air pump B (miniature air pump); 21 is a one-fluid nozzle.

[0028] The working principle is that the first step is to prepare a high-pressure and high-speed active oxygen cluster airflow: start OP (blower) and DB (air pump B), and the airflow generated by DB (air pump B) will enter the active oxygen cluster excitation chamber (8) of the centralized transmission type xenon excimer active oxygen cluster generator, and then pass around the xenon excimer light source (Xe) to generate active oxygen cluster gas. When the xenon excimer light tube (Xe) is lit, the active oxygen cluster excitation chamber (8) of the centralized transmission type xenon excimer active oxygen cluster generator will generate active oxygen cluster gas. The outflowing active oxygen cluster gas enters the Venturi tube 1 (9) through the negative pressure inlet end (11) of the Venturi tube 1 (9), mixes with the high pressure and high speed airflow from the OP (blower), and then is ejected from the Venturi tube 1 (9) to form a high pressure and high flow rate active oxygen cluster airflow, and enters the Venturi tube 2 (16) through the inlet end (17) of the Venturi tube 2 (16); the concentration of active oxygen clusters in the active oxygen cluster gas can be controlled by the lighting time of the lamp tube (Xe) of the air xenon excimer light source. The second step is to supply hydrogen peroxide solution: the peristaltic pump (12) is started, and the hydrogen peroxide aqueous solution (14) in the liquid container tank (13) can be entered into the Venturi tube 2 (16) through the negative pressure inlet end (18) of the Venturi tube 2; by adjusting the flow rate of the peristaltic pump (12), the amount of hydrogen peroxide aqueous solution pumped into the Venturi tube 2 (16) can be changed. The third step is to spray the water vapor micro-mist of hydrogen peroxide and active oxygen clusters: the hydrogen peroxide aqueous solution and the high-pressure and high-flow rate active oxygen cluster airflow are combined in the venturi tube 2 (16) and then sprayed out through a fluid nozzle (21) to form an active oxygen cluster hydrogen peroxide micro-mist (1). 0029 In the one-fluid spray parallel / blower type xenon excimer active oxygen cluster and hydrogen peroxide micro-mist disinfector, the control of the internal active electrical components is completed by the embedded MCU (microprocessor) digital circuit, wherein the main control parameters are the lighting and closing time of the xenon excimer light source lamp tube (Xe), the peristaltic pump flow rate, and the vapor mist spraying time; wherein the opening time of OP (blower) and DB (air pump B) should be more than 3s earlier than the lighting time of the xenon excimer light source lamp tube (Xe), and the closing time should be more than 3s later than the closing time of the xenon excimer light source lamp tube (Xe), so as to ensure that there is airflow flowing over the surface of the lamp tube when the xenon excimer light source lamp tube is lit.

[0029] The design of a fluid nozzle parallel / blower type xenon excimer active oxygen cluster and hydrogen peroxide micro-mist sterilizer is characterized by the need for two venturi tubes, and the steam mist injection time can be continuously sprayed for a long time.

[0030] Embodiment 3 A design of a two-fluid nozzle series / blower type xenon excimer reactive oxygen cluster and hydrogen peroxide micro-mist sterilizer.

[0031] Figure 3This is the schematic diagram of a two-fluid nozzle series / blower-type xenon excimer reactive oxygen species and hydrogen peroxide micro-mist disinfector. In the figure, 1 is the reactive oxygen species hydrogen peroxide micro-mist (dry mist); 2 is the two-fluid nozzle; 3 is the injection port of the two-fluid nozzle; 4 is the inlet end of the two-fluid nozzle; 5 is the negative pressure inlet end of the two-fluid nozzle; Xe is the xenon excimer lamp tube; 12 is the peristaltic pump; 13 is the liquid container tank; 14 is water or hydrogen peroxide (0.5%-7.5%); The solid line G represents the air pipeline; The double line W represents the liquid pipeline; OP blower (high-pressure centrifugal blower): 3000Pa < H ≤ 15000Pa; 19 is the front air cavity of OP; 20 is the blower and blower impeller of OP.

[0032] Its working principle is as follows. The first step is to prepare a high-pressure and high-speed reactive oxygen species gas flow: The air flow generated by starting OP (the blower) will pass around the lamp tube (Xe) of the xenon excimer light source to generate reactive oxygen species gas. By controlling the lighting time of the air xenon excimer light source lamp tube (Xe), a high-pressure and high-speed reactive oxygen species gas flow can be generated, which enters the two-fluid nozzle (2) from the inlet end (4) of the two-fluid nozzle (2); By controlling the lighting time of the xenon excimer lamp tube (Xe), the concentration of reactive oxygen species in the high-pressure and high-speed reactive oxygen species gas flow can be controlled. The second step is to supply the hydrogen peroxide solution: When the peristaltic pump (12) is started, the hydrogen peroxide aqueous solution (14) in the liquid container tank (13) can be pumped into the two-fluid nozzle (2) from the negative pressure inlet end (5) of the two-fluid nozzle (2); By adjusting the flow rate of the peristaltic pump (12), the amount of hydrogen peroxide aqueous solution pumped into the two-fluid nozzle (2) can be changed. The third step is to spray the water vapor micro-mist of hydrogen peroxide and reactive oxygen species: After the hydrogen peroxide aqueous solution and the high-pressure and high-speed reactive oxygen species gas flow converge in the two-fluid nozzle (2), they are then sprayed out through the injection port (3) of the two-fluid nozzle (2) to form the reactive oxygen species hydrogen peroxide micro-mist (1).

[0033] In the two-fluid nozzle series / blower xenon excimer reactive oxygen species and hydrogen peroxide micro-mist disinfector, the control of internal active electrical components is completed through an embedded MCU (microprocessor) digital circuit. The main control parameters are the lighting and closing time of the lamp tube (Xe) of the xenon excimer light source, the flow rate of the peristaltic pump, and the aerosol spraying time; The opening time of OP (the blower) should be more than 3s earlier than the lighting time of the lamp tube (Xe) of the xenon excimer light source, and the closing time should be more than 3s later than the closing time of the lamp tube (Xe) of the xenon excimer light source, so as to ensure that there is air flow passing through the surface of the lamp tube when the xenon excimer light source lamp tube is lit.

[0034] The design of the two-fluid nozzle series / blower xenon excimer reactive oxygen species and hydrogen peroxide micro-mist disinfector is characterized by the absence of a Venturi tube and the absence of the reactive oxygen species excitation chamber (8) of a centralized transmission type xenon excimer reactive oxygen species generator. The lamp tube (Xe) of the xenon excimer light source is directly installed in the front air chamber (19) of the OP, and the aerosol spraying time can be continuously sprayed for a long time.

[0035] Embodiment 4: Design of a one-fluid nozzle series / blower type xenon excimer reactive oxygen species and hydrogen peroxide micro-mist disinfector.

[0036] Figure 4 Figure 7 is a schematic diagram of a one-fluid nozzle series / blower type xenon excimer reactive oxygen species and hydrogen peroxide micro-mist disinfector. In the figure, 1 is the reactive oxygen species hydrogen peroxide micro-mist (dry mist); Xe is the xenon excimer lamp tube; 12 is a peristaltic pump; 13 is a liquid container tank; 14 is water or hydrogen peroxide (0.5%-7.5%); 16 is Venturi tube 2; 17 is the inlet end of Venturi tube 2; 18 is the negative pressure inlet end of Venturi tube 2; the solid line G represents the air pipeline; the double line W represents the liquid pipeline; OP is a blower (high-pressure centrifugal fan): 3000Pa < H ≤ 15000Pa; 19 is the front air chamber of the OP; 20 is the blower and the blower impeller of the OP; 21 is a one-fluid nozzle.

[0037] Its working principle is as follows: The first step is to prepare a high-pressure and high-speed reactive oxygen species gas flow: The air flow generated by starting the OP (blower) passes around the lamp tube (Xe) of the xenon excimer light source to generate reactive oxygen species gas, and enters Venturi tube 2 (16) through the inlet end (17) of Venturi tube 2 (16); by controlling the lighting time of the xenon excimer lamp tube (Xe), the concentration of reactive oxygen species in the high-pressure and high-speed reactive oxygen species gas flow can be controlled. The second step is to supply the hydrogen peroxide solution: When the peristaltic pump (12) is started, the hydrogen peroxide aqueous solution (14) in the liquid container tank (13) can be pumped into Venturi tube 2 (16) through the negative pressure inlet end (18) of Venturi tube 2 (16); by adjusting the flow rate of the peristaltic pump (12), the amount of hydrogen peroxide aqueous solution pumped into Venturi tube 2 (16) can be changed. The third step is to spray the water vapor micro-mist of hydrogen peroxide and reactive oxygen species: After the hydrogen peroxide aqueous solution and the high-pressure and high-flow reactive oxygen species gas flow converge in Venturi tube 2 (16), they are sprayed out through a one-fluid nozzle (21) to form the reactive oxygen species hydrogen peroxide micro-mist (1).

[0038] In a fluid nozzle series / blower type xenon excimer reactive oxygen cluster and hydrogen peroxide micro-mist sterilizer, the control of the internal active electrical components is completed by an embedded MCU (microprocessor) digital circuit, wherein the main control parameters are the lighting and shut-off time of the xenon excimer light source lamp (Xe), the peristaltic pump flow rate, and the steam mist spraying time; wherein the turning-on time of the OP (blower) should be at least 3s earlier than the lighting time of the xenon excimer light source lamp (Xe), and the turning-off time should be at least 3s later than the turning-off time of the xenon excimer light source lamp (Xe), so as to ensure that airflow flows over the surface of the lamp when the xenon excimer light source lamp is lit.

[0039] The design of a fluid nozzle series / blower xenon excimer active oxygen cluster and hydrogen peroxide micro-mist sterilizer is characterized by a venturi tube, an active oxygen cluster excitation cabin (8) without a centralized transmission type xenon excimer active oxygen cluster generator, and the xenon excimer light source lamp (Xe) is directly installed in the front air chamber (19) of the OP, so that the mist spraying time can be continuous for a long time.

[0040] Example 5 A xenon excimer active oxygen cluster and hydrogen peroxide micro-mist sterilizer designed and manufactured using the two-fluid nozzle parallel / blower type xenon excimer active oxygen cluster and hydrogen peroxide micro-mist sterilizer of Example 5 is used. 3%, 1.5%, 0.5% hydrogen peroxide and pure water + a xenon excimer lamp (24W, on: off = 49s: 1s) are used to sterilize a volume of 60m 3 The room of the microbiological laboratory was disinfected for 30 minutes, and the spraying was maintained for 10 minutes. The floating bacteria in the laboratory were sampled using a microbial air sampler / sampling time of 36 minutes (1018.8L / time). The sampling time was 36 minutes. Nutrient agar culture plates were used and cultured at 36°C for 48 hours. The number of colonies was counted. The experimental results are shown in the following table:

[0041] disinfecting Factor CFU before disinfection Temperature ℃ Humidity RH% Consumption ml CFU after disinfection 3% Hydrogen Peroxide + Xe (Bright 49s: Off 1s) *1-4-18-23-16-7＝69 9-9.3 **31-31.5 / 59-54 400 0 1.5% hydrogen peroxide + Xe (on 49s: off 1s) *2-5-13-22-14-6＝62 9-9.3 **31-31.5 / 61-55 400 0 0.5% hydrogen peroxide + Xe (on 49s: off 1s) *1-3-10-23-14-4＝55 9-9.3 **31-31.5 / 62-53 400 1 Pure water + Xe (brightness 49s: 1s) *1-4-12-21-17-4＝59 9-9.3 **31-31.5 / 64-58 400 2

[0042] *The colony counts of each plate are 1#-2#-3#-4#-5#-63# respectively.

[0043] **Humidity variation range during sampling before disinfection / sampling after disinfection respectively.

[0044] The hydrogen peroxide mist sterilizers currently on the market basically use 7.5% hydrogen peroxide aqueous solution. The higher the concentration of hydrogen peroxide, the less conducive it is to the rapid degradation of hydrogen peroxide after disinfection.

[0045] It can be seen from the above four disinfection experiments that the xenon excimer active oxygen cluster generator technology, which is a combination of the centralized transmission type xenon excimer light source active oxygen cluster generator technology and the hydrogen peroxide micro-mist spraying technology to form a design of "xenon excimer active oxygen cluster and hydrogen peroxide micro-mist disinfector", can use 1.5% hydrogen peroxide aqueous solution and a smaller volume during use, and can still achieve the disinfection effect of 7.5% hydrogen peroxide aqueous solution. This shows that the active oxygen clusters and hydrogen peroxide aqueous solution generated by the xenon excimer light source to excite the air have a good synergistic disinfection effect, and because the spraying amount of hydrogen peroxide aqueous solution is greatly reduced, the environmental humidity of the space to be disinfected is effectively reduced. The sour smell of hydrogen peroxide in the room after disinfection is greatly reduced with the decrease in the concentration of hydrogen peroxide, especially when using 0.5% hydrogen peroxide solution in conjunction with the xenon excimer light source. The sour smell is lower, but a disinfection level close to terminal disinfection can still be achieved, which is worthy of further discussion and verification.

Claims

1. A blower type xenon excimer active oxygen cluster and hydrogen peroxide micro-mist sterilizer, characterized in that The centralized transmission type xenon excimer light source active oxygen cluster generator technology and the hydrogen peroxide micro-mist spraying technology are combined and applied to form a basic physical structure of a blower type xenon excimer active oxygen cluster and hydrogen peroxide micro-mist disinfector. The basic physical structure is composed of a two-fluid nozzle or a one-fluid nozzle, and / or an active oxygen cluster excitation chamber of a centralized transmission type xenon excimer active oxygen cluster generator, a xenon excimer light source, a venturi tube, a peristaltic pump or a micro liquid pump, and / or a gas container tank, and a blower as basic components. These components are reasonably connected to each other through liquid pipes and / or gas pipes to form the basic structure of the blower type xenon excimer active oxygen cluster and hydrogen peroxide micro-mist disinfector.

2. A blower type xenon excimer active oxygen cluster and hydrogen peroxide micro-mist sterilizer according to claim 1, characterized in that In the basic structure of the blower type xenon excimer reactive oxygen cluster and hydrogen peroxide micro-mist sterilizer, the use of a single-fluid nozzle requires one more venturi tube in the structure than the use of a two-fluid nozzle.

3. A blower type xenon excimer active oxygen cluster and hydrogen peroxide micro-mist sterilizer according to claim 1, characterized in that The disinfectant used is an aqueous solution of hydrogen peroxide, or a hydrogen peroxide silver ion disinfectant, or a hydrogen peroxide zinc ion disinfectant, or water.

4. A blower type xenon excimer active oxygen cluster and hydrogen peroxide micro-mist sterilizer according to claim 1, characterized in that An embedded MCU digital control circuit is used to electrically control the active components in the xenon excimer reactive oxygen cluster and hydrogen peroxide micro-mist sterilizer. The main control parameters include the lighting and extinguishing time of the xenon excimer light source lamp, the flow rate of the peristaltic pump or micro liquid pump, and the control of the switching parameters of the air solenoid valve and the blower. For the blower type xenon excimer reactive oxygen cluster and hydrogen peroxide micro-mist sterilizer, the embedded MCU digital control circuit should ensure that the start time of the blower supplying air to the reactive oxygen cluster excitation chamber is not less than 3s earlier than the lighting time of the xenon excimer light source lamp.

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