40results about How to "Does not generate ozone" patented technology

The invention provides a disinfecting method of a disinfection cabinet and the disinfection cabinet. The disinfecting method adopted combined light waves and heat to sterilize and disinfect, wherein the light wave has a wall-broken effect on bacteria. The invention also provides the disinfection cabinet adopting the disinfecting method, which is composed of an outer shell and an inner shell, wherein the outer shell encircles the inner shell to form an interlayer, and the inner shell forms an inner cavity provided with a device for producing light waves having a wall-broken effect on bacteria and a device for producing heat capable of maintaining the disinfection cabinet inner cavity at a certain temperature. By the invention, sterilization and disinfection can be realized by combing light waves and heat, thus greatly shortening the disinfecting time.

The invention discloses a low voltage electrostatic dust collection module and an air purification device. The low voltage electrostatic dust collection module comprises a positive electrode low voltage electrostatic dust collection unit, a negative electrode low voltage electrostatic dust collection, an electrostatic generator and a degeneration control adjuster, wherein the positive electrode low voltage electrostatic dust collection unit and the negative electrode low voltage electrostatic dust collection at least comprises a layer of electrostatic dust collection filter screen; each electrostatic dust collection filter screen comprises a conductive non-woven fabric filter screen with a microcellular structure; the electrostatic generator continuously conveys a positive charge to the conductive non-woven fabric filter screen in the positive electrode low voltage electrostatic dust collection unit, and continuously conveys a negative charge to the conductive non-woven fabric filter screen in the negative electrode low voltage electrostatic dust collection unit; the degeneration control adjuster is used for monitoring an electric charge quantity change on each conductive non-wovenfabric filter screen, and feeding back changed signals to a control system; and the control system controls a periodic intermitting supply manner of the electrostatic generator and the magnitude of output voltage according the feedback signals. The conductive non-woven fabric filter screens are utilized for loading a static charge so as to form a contact electrification mechanism, so that the generation of ozone can be completely avoided.

The invention relates to environmental-friendly type energy-saving LED (Light Emitting Diode)-UV (Ultraviolet) silk-screen printing ink. The environmental-friendly type energy-saving LED-UV silk-screen printing ink is prepared from the following raw materials in parts by weight: 51 to 58 parts of acrylate prepolymer, 15 to 19 parts of reaction monomers, 12 to 15 parts of pigment, 1 to 4 parts of dispersing agent, 0 to 5 parts of filling agent, 7 to 10 parts of photosensitizer and 0 to 1 part of polymerization inhibitor. The environmental-friendly type energy-saving LED-UV silk-screen printing ink is solidified and dried through a UV-LED light source. The environmental-friendly type energy-saving LED-UV silk-screen printing ink disclosed by the invention contains no poisonous substances, cannot generate ozone, has no odor and contains no benzenes and aromatic organic solvents, a light resisting membrane is nonflammable and cannot deform, the contact temperature is below 70 DEG C, drying is fast, solidification and cross linking can be realized within 2 to 3 seconds, the fastness of a printing product is good, and no radiation light is generated; the environmental-friendly type energy-saving LED-UV silk-screen printing ink can be used for food packaging and metal printing of a medicine packaging machine and is safer and more environmental-friendly.

The invention discloses LED-UV photo-curing solder resist ink. The LED-UV photo-curing solder resist ink comprises, by weight, 20-50% of amine modified acrylate resin, 10-45% of activated monomers, 5-15% of photoinitiator and 0.1-1% of macromolecular organic wax powder. The LED-UV photo-curing solder resist ink can be photo-cured through an LED-UV light source, has the advantages of being high in curing speed and good in adhesion preventing performance and can meet the high-speed printing requirement of a printed circuit board.

The invention discloses a fresh air purification all-in-one machine, which comprises a casing, an indoor air return inlet, an outdoor fresh air inlet, a fresh air supply opening, an indoor air return exhaust opening and a power supply control device, wherein the power supply control device is arranged in the casing; a primary filter, a heat exchange core body, an exhaust machine, a secondary filter, an ion cloud dust removal module, an air supply machine and a tertiary filter are sequentially arranged in the casing; the exhaust machine, the ion cloud dust removal module and the air supplying machine are respectively and electrically connected with the power supply control device. The outdoor air and the indoor air are simultaneously introduced into a purifier; the air circulation is realized; the indoor air quality is improved; in addition, the ventilation and the air purification function are integrated; the plug-and-use effect is achieved; the problems of installation and repair difficulty and house structure damage by pipelines installing are solved; the ion cloud generating device can ionize outdoor air to generate negative ions; dust is adsorbed onto a dust collecting plate after being charged. The fresh air purification all-in-one machine has the advantages that the negative ion generating quantity is great; the conveyance distance is long; the dust removal and sterilization effects are good; in addition, no ozone is generated in the work process; the environment is protected; health is realized.

The invention is applicable to the technical field of an ion generator and provides a positive and negative ion generation device and an air purifier. The positive and negative ion generation device comprises a casing, a circuit board and an electrode, wherein the circuit board is provided with a voltage conversion circuit, the voltage conversion circuit comprises an inversion boost oscillation circuit, a positive voltage high voltage rectification circuit and a negative voltage high voltage rectification circuit, the electrode comprises a plasma generation electrode connected with a positive ion generation electrode, a negative ion generation ion and an output end of the inversion boost oscillation circuit, the plasma generation electrode is internally provided with a first though hole and a second through hole with an interval, the positive ion generation electrode perpendicularly penetrates through the first through hole, and the negative ion generation electrode perpendicularly penetrates through the second through hole. The positive and negative ion generation device is advantaged in that problems that an ion generator in the prior art only generates negative ions and the sterilization effect is not ideal are solved, and a problem that an AC voltage is directly exerted through the ion generator to a discharge electrode to generate ozone which influence the human health is further solved.

The invention discloses an ultra-violet LED face light source for a PCB exposure machine. The ultra-violet LED face light source comprises a plurality of water-cooling type ultra-violet LED lamp box units, wherein each water-cooling type ultra-violet LED lamp box unit comprises M*N ultra-violet LED lamp beads arranged on an element installation face of a copper substrate and arranged into a matrix structure, all the ultra-violet LED lamp beads are in series connection, each ultra-violet LED lamp bead is covered with a reflection cup, all the reflection cups are arranged on a reflection cup installation plate, the reflection cup installation plate is connected with the element installation face of the copper substrate, a unit water tank is arranged on the water passing face, opposite to the element installation face, of the copper substrate, and a temperature controller is arranged on the unit water tank. The ultra-violet LED face light source for the PCB exposure machine is remarkable in energy-saving effect, large in exposure area, far in exposure distance and high in energy uniformity. The light source is stable and reliable, performance is far more superior than a traditional light source, is low in cost and free of pollution and radiation, and can completely replace the traditional light source.

The invention relates to the technical field of sterilization and disinfection equipment, in particular to an ultraviolet pulse sterilization, disinfection and purification all-in-one machine, a sterilization and purification method and a computer readable storage medium. The ultraviolet pulse sterilization, disinfection and purification all-in-one machine comprises a machine body and a disinfection bin arranged in the machine body; a filtering and purifying chamber is arranged in the machine body, a disinfection suction inlet and a disinfection outlet which communicate with the filtering andpurifying chamber are formed in the disinfection bin, and an air inlet and an air outlet which communicate with the filtering and purifying chamber are formed in the machine body; a xenon ultravioletlamp and a circulating air mechanism are arranged in the disinfection bin, and a dust filtering device is arranged in the filtering and purifying chamber; and the ultraviolet pulse sterilization, disinfection and purification all-in-one machine further comprises a boosting module and a trigger which are electrically connected with the xenon ultraviolet lamp separately. Through the ultraviolet pulse sterilization, disinfection and purification all-in-one machine, sterilization and disinfection can be performed on air, the air is purified, and man-machine coexistence can be achieved.

The invention provides movable environment disinfection and sterilization equipment. The device comprises a single-wavelength short-wave ultraviolet light source, a control system and a trolley. The wavelength range of the ultraviolet light of the single-wavelength short-wave ultraviolet light source is 200-230 nm. The trolley comprises a main machine box, a controller, a man-machine interaction touch screen and a mechanical arm, and the mechanical arm can rotate at multiple degrees of freedom. The ultraviolet light source comprises an ultraviolet lamp, a controller and a lampshade, the ultraviolet light source is fixed to the mechanical arm, and the controller is installed in the multifunctional control box. The control system plans and controls the advancing route of the trolley. Compared with the prior art, the device does not generate radiation and ozone harmful to a human body, is safe to the human body, has no use limitation, does not force people to leave, and is used for killing microorganisms in public places so as to control infectious disease transmission.

The present invention relates to a built-in negative ion air purification device for air flue and an installation method thereof. The device includes an air flue pipe, a negative ion generator body, a negative ion emission head and a good conductor member. A grid member is arranged at the outlet position of the air flue pipe; the negative ion emission head is located behind the grid member; the tip portion emission part extends into the air flue pipe through the side wall of the air flue pipe; the good conductor member is arranged in the air flue pipe, and at the position between the negative ion emission head and the grid air port and near the grid member; a safety guide distance between the good conductor member and the negative ion emission head is 3-8 cm; and a ground wire is connected to the bottom of the good conductor member. The device has the advantages of a large amount of negative ions production, high purification speed and good security performance; and the built-in structure does not affect the outer appearance of the air flue. The device, an air conditioner filter and an air conditioner ventilation system form a complete super air purifier system, which gives the users brand new concepts and experiences of indoor air purification.

The invention discloses a surgical image data analysis method and system and a hospital-wide self-service printing system. The hospital-wide self-service printing system comprises a server, a film data module, an interface operation module, an analysis data module, a terminal printing data module, a printing proxy module, a terminal configuration module, a printing management module, a bar code module, a card reading module, an interrupt module, a timing module, a report module, a film module, a network module, a functional module, an application module and a reprinting module. The surgical image data analysis method comprises the steps that firstly, English letters and Chinese characters on a film are cut so that a dictionary tool can clearly extract the English letters and the Chinese characters; secondly, the extracted letters and the Chinese characters on the film and film data are analyzed and stored; thirdly, film report data is received, a numeral number and the top two of the English letters are extracted to serve as a characteristic value of the film; fourthly, the characteristic value is extracted, and the film is extracted from a film database and loaded until interrupting. The surgical image data analysis method and system and the hospital-wide self-service printing system have the advantages that surgical radiological image data is quickly printed, the imaging is clear, and the storing time is long.

The embodiment of the invention discloses an ultraviolet drying machine, and relates to the technical field of irradiation drying equipment. The ultraviolet drying machine comprises a rack, a transmission device arranged on the rack, a cover body arranged on the upper side of the transmission device, and an illumination device arranged on the upper side of the transmission device and located in the cover body, the illumination device comprises a supporting assembly connected with the cover body and an ultraviolet LED light panel arranged on the supporting assembly, and shading assemblies are arranged on the upper side, on the two sides of the cover body, of the transmission device; and a cooling device for water cooling on the ultraviolet LED light panel is arranged on the ultraviolet LEDlight panel. The ultraviolet drying machine is used for solving the problem that in the prior art, due to the fact that the use ratio of UV light produced by traditional drying machines is low, and consequently workpieces are prone to deformation.

The invention discloses an ultra-violet LED face light source for a PCB exposure machine. The ultra-violet LED face light source comprises a plurality of water-cooling type ultra-violet LED lamp box units, wherein each water-cooling type ultra-violet LED lamp box unit comprises M*N ultra-violet LED lamp beads arranged on an element installation face of a copper substrate and arranged into a matrix structure, all the ultra-violet LED lamp beads are in series connection, each ultra-violet LED lamp bead is covered with a reflection cup, all the reflection cups are arranged on a reflection cup installation plate, the reflection cup installation plate is connected with the element installation face of the copper substrate, a unit water tank is arranged on the water passing face, opposite to the element installation face, of the copper substrate, and a temperature controller is arranged on the unit water tank. The ultra-violet LED face light source for the PCB exposure machine is remarkable in energy-saving effect, large in exposure area, far in exposure distance and high in energy uniformity. The light source is stable and reliable, performance is far more superior than a traditional light source, is low in cost and free of pollution and radiation, and can completely replace the traditional light source.

The embodiment of the invention relates to application of a semiconductor composite material loaded with fullerene and a derivative thereof in photocatalytic degradation of indoor VOCs. According to the invention, the fullerene comprises at least one selected from the group consisting of hollow fullerene and metal fullerene; the fullerene derivative comprises at least one selected from the group consisting of a fullerene aminated derivative, a fullerene carboxylated derivative and a fullerene hydroxylated derivative; a semiconductor body in the composite material comprises at least one selected from the group consisting of titanium dioxide, zinc oxide, tin oxide and manganese oxide. According to the composite material, the utilization efficiency of solar energy is high in the process of removing indoor VOCs through photocatalysis; meanwhile, no harmful product O3 is generated in the reaction process, indoor VOCs pollution with large quantity and high concentration can be treated, and the composite material is stable in structure, capable of being repeatedly used, excellent in indoor VOCs pollutant degradation performance and low in cost.

The invention discloses an air purifying and deodorizing method and an electrolytic water-washing type air purifier. The purifier comprises an air inlet, a drainage hole, a water inlet and an air outlet. The polluted air enters a drum type filter element through the air inlet by an air-guiding pipe. The drum type filter element is driven by a motor to rotate; tap water can enter a purifier water tank through the water inlet and a flow-guiding pipe; an electrolytic unit is arranged at the bottom of the water tank, and hydroxyl radical and hypochlorous acid are electrolyzed in the tap water under specific electrolytic conditions; the air in the drum type filter element continuously enters the water through filter cotton, and the hydroxyl radical and the hypochlorous acid in the water react with pollutants in the air; and the air washed with water passes through a grid plate, an evaporator and a condenser and then is discharged from the air outlet. Toxic and harmful dust, aerosol, water-soluble gas in the air can be decomposed, odor is reduced, microorganisms in the air are killed, and the cost of the filter element of a traditional air purifier is reduced through the method of waterwashing.

The invention discloses a bacteriostatic water circulation air purification system. The bacteriostatic water circulation air purification system comprises a cabinet body, a fresh air outlet is formedin the cabinet body, an air inlet duct and an atomization mixing chamber are arranged in the cabinet body, an air outlet of the atomization mixing chamber is connected with the fresh air outlet, and an air outlet of the air inlet duct is connected with an air inlet of the atomization mixing chamber; high-pressure atomizing nozzles are arranged in the atomization mixing chamber, and a wastewater treatment and sterilization water circulation system is arranged at the bottom of the atomization mixing chamber; the wastewater treatment and sterilization water circulation system comprises a collecting tank, a selective one-way permeable membrane is arranged in the collecting tank, and the selective one-way permeable membrane divides the collecting tank into a wastewater sterilization collectingtank and a purified water collecting tank; a first-stage filter screen is arranged at the top end of the collecting tank, a filtrate containing tank is arranged below the first-stage filter screen, and a liquid outlet of the filtrate containing tank is connected with the wastewater sterilization collecting tank; and a water outlet of the purified water collecting tank is connected with the high-pressure atomizing nozzles through a high-pressure water pump. Water is a consumable of the device, the wastewater treatment and sterilization system is adopted, and the problems that consumables are expensive and water is wasted are solved.

The invention discloses a communication machine room with electrostatic dust removal. From the air inlet to the air outlet, there are exhaust fans, polarizers and electrostatic adsorbers in sequence. The communication room uses a dust removal device to filter the air. There are channels between adjacent plates in the electrostatic adsorber and the channels are curved channels. When the dust-containing gas passes through the high-voltage electrostatic field, it is electrically separated, and the dust is adsorbed on the electrode plate to achieve the dust removal effect. The curved channel is conducive to extending the air filtration path, and the dust removal effect is better; in addition, through the covering of the insulating layer, the positive plate and negative electrode There will be no discharge phenomenon between the plates, so as to avoid the generation of ozone, and the structure is safe, practical, stable and reliable.

The invention provides an indoor air purifier and an indoor air purification method. The indoor air purifier comprises a high-pressure output device, a high-frequency output device, a plurality of high-pressure electrode wires, and a plurality of high-frequency electrode plates, wherein the high-pressure electrode wires are connected with the high-pressure output device, the high-frequency electrode plates are connected with the high-frequency output device, a high-frequency exciting electrostatic field is formed between the high-frequency electrode plates, and a middle-efficiency filter screen is arranged in front or back of the high-frequency exciting electrostatic field. The working principle of the indoor air purifier is as follows: the high-frequency exciting electrostatic field is established in two adjacent high-frequency electrode plates, drives micron-size dust and initializes turbulent polymerization to effectively and quickly increase the size of the dust, captured PM2.5 floating in the indoor air is polymerized in the high-frequency exciting electrostatic field, and the size of the dust is larger and larger like rolling snowballs till the dust can be filtered by the middle-efficiency filter screen, the whole procedure is a cyclic procedure; in the cyclic purification procedure, the number of indoor PM2.5 is quickly reduced.

The invention discloses a fresh air odor removing machine. The odor removing machine comprises a shell and a circuit board located in the shell. The shell comprises an upper cover, side walls and a base. The upper cover is connected with the side walls which are connected with the base. An air inlet is formed in the left side wall of the shell, and an air outlet is formed in the right side wall of the shell. An axial flow fan and an ionizer are sequentially arranged on the position, inside the shell, of an air flow channel from left to right. The axial flow fan and the ionizer are electrically connected with the circuit board. A power supply unit is further arranged on the air flow channel and electrically connected with the circuit board. According to the fresh air odor removing machine, circulating and purifying of indoor air can be achieved, using is conducted after inserting, a pipeline does not need to be installed, and the house structure does not need to be destroyed even more, ion generated quantity is large, the conveying distance is long, the dedusting and sterilization effects are good, the air purifying effect is good, ozone is not generated, and therefore the environment-friendly and healthy effects are achieved; and the size is small, the structure is simplified, the fresh air odor removing machine is particularly suitable for using of the indoor environments such as a bathroom, a kitchen, a bedroom and a living room.

The invention discloses a central air conditioner disinfection and sterilization method. A central air conditioner disinfection and sterilization system is sequentially provided with an ionization disinfection and sterilization module, a physical filtering module, an ultraviolet-deep ultraviolet disinfection and sterilization module and a chemical fuming module in the flow direction of air in an air return pipeline of a central air conditioner. The central air conditioner disinfection and sterilization method comprises the following steps that firstly, the air in the air return pipeline of the air conditioner is subjected to electric separation to charge particles in the air and adsorb charged particles; then physical filtration is carried out; and finally, DNA and / or RNA of pathogens are / is destroyed through deep ultraviolet disinfection and sterilization, then the residual pathogens after filtration are killed, and meanwhile, the smoke generating material is diffused into the air return pipeline of the central air conditioner.

The invention discloses a high polymer resin for an electropositive toner of a laser printer and a preparation method for the high polymer resin. The high polymer resin is prepared from styrene, butyl acrylate, methyl methacrylate, di-tert-butyl peroxide, tert-dodecylmercaptan, divinylbenzene, calcium hydroxide, phosphoric acid, hydrochloric acid and other raw materials by steps of mixing, reaction, rinsing, drying, crushing, screening and the like. The electropositive toner of the laser printer prepared from the high polymer resin has high blackness, is difficultly adhered to a roller, and has high fixing property and fastness, the printed image-text has uniform blackness, ozone cannot be generated, environment is protected and the production cost is low.

The invention discloses rapid-curing screen printing ink, and relates to environment-friendly energy-saving LED (Light Emitting Diode)-UV (Ultraviolet) screen printing ink. The rapid-curing screen printing ink contains no toxic matters, cannot generate ozone, is odorless and contains no benzene and aromatic organic solvents, a photo-resist film is not easy to burn and deform, the temperature of acontactor is lower than 70 DEG C, drying is fast, curing and crosslinking can be realized within 2 to 3 seconds, and a printing product is high in fastness and has no radiation light. The rapid-curingscreen printing ink is prepared from the following components: 51 to 58 parts of methacrylate prepolymer, 15 to 19 parts of reaction monomer, 12 to 15 parts of pigment, 1 to 4 parts of dispersing agent, 0 to 5 parts of filler, 7 to 10 parts of photocatalyst and 0 to 1 part of polymerization inhibitor. The rapid-curing screen printing ink is cured and dried through a UV-LED light source.

The invention relates to the technical field of air purification and discloses an air filtering net. The air filtering net comprises a dust collection system and a first dust removal module arranged on one side of the dust collection system, wherein the first dust removal module comprises a first dust removal plate and first fillers; a plurality of first ventilation holes are formed in the first dust removal plate; the first ventilation holes are filled with the first fillers; each of the first fillers comprises at least one high polymer material, so that at least one part of uncharged particulate matters can generate friction with the high polymer material(s) of the first dust removal module to generate charged particulate matters capable of being adsorbed by the high polymer material(s)when air penetrates through the first dust removal module. According to the air filtering net, through combined use of a novel material and the dust collection system, the particulate matters in the air can be better removed, and no ozone is generated, so that the purifying effect is optimized favorably.

The invention provides a frictional electrostatic dust removal device and method. The frictional electrostatic dust removal device comprises a fan disc, a top cover, a water container, a turntable, a rotary shaft connected with the turntable and pole plates fixed to the turntable. Multiple fans are distributed on the fan disc, an electric brush is fixed to the fan disc, and an electric brush is fixed to the top end of the water container. The front end of the top cover is fixed to the fan disc, the rear end of the top cover is fixed to the water container, and the turntable is fixedly connected with the water container. Conductive pieces extending out of fan blades of the fans are in contact with the electric brush on the fan disc in a sliding mode. The conductive pieces extending out of electrode slices inside the pole plates are in contact with the electric brush fixed to the top end of the water container in a sliding mode. The electric brush fixed to the fan disc is connected with the electric brush fixed to the water container. The problems of high energy consumption, easy blockage and incomplete dust removal of a traditional dust removal device can be solved by means of the frictional electrostatic dust removal device and the method.

An ion generator comprises a magnetic field generator (1) and a titanium dioxide device (3) intersecting with a magnetic field (2) generated by the magnetic field generator (1), wherein the magnetic field (2) has appropriate intensity and direction so as to promote ions on the periphery of the titanium dioxide device (3) to rapidly leave the titanium dioxide device (3), the titanium dioxide device (3) comprises nano titanium dioxide and a framework having a fixed supporting function on the titanium dioxide device (3), and nano titanium dioxide is distributed on the surface of the framework. By means of the characteristics that titanium dioxide has strong chemical reaction and is sensitive to oxygen and easy to reduce and charged particles generate movement under the action of magnetic field force, the generator generates an ion group containing oxygen negative ions and positive ions by effectively combining the magnetic field with titanium dioxide.

The invention discloses a low voltage electrostatic dust collection module and an air purification device. The low voltage electrostatic dust collection module comprises a positive electrode low voltage electrostatic dust collection unit, a negative electrode low voltage electrostatic dust collection, an electrostatic generator and a degeneration control adjuster, wherein the positive electrode low voltage electrostatic dust collection unit and the negative electrode low voltage electrostatic dust collection at least comprises a layer of electrostatic dust collection filter screen; each electrostatic dust collection filter screen comprises a conductive non-woven fabric filter screen with a microcellular structure; the electrostatic generator continuously conveys a positive charge to the conductive non-woven fabric filter screen in the positive electrode low voltage electrostatic dust collection unit, and continuously conveys a negative charge to the conductive non-woven fabric filter screen in the negative electrode low voltage electrostatic dust collection unit; the degeneration control adjuster is used for monitoring an electric charge quantity change on each conductive non-wovenfabric filter screen, and feeding back changed signals to a control system; and the control system controls a periodic intermitting supply manner of the electrostatic generator and the magnitude of output voltage according the feedback signals. The conductive non-woven fabric filter screens are utilized for loading a static charge so as to form a contact electrification mechanism, so that the generation of ozone can be completely avoided.

The invention discloses an electrostatic dust collection device based on a non-uniform electric field. The device comprises a dust collection electrode, a shielding pipe and a fan, the shielding tubecoaxially and annularly sleeves the outer side of the dust collecting electrode through an electrode supporting assembly; wherein the dust collecting electrode is connected with a high-voltage power supply, an electrode dust collecting channel through which dusty gas passes is formed between the shielding tube and the dust collecting electrode, two ends of the electrode dust collecting channel areopen, one end of the electrode dust collecting channel is an air inlet, the other end is an air outlet, and a fan for bringing the dusty gas into the electrode dust collecting channel is arranged outside the electrode dust collecting channel; the dust collection electrode, the shielding pipe and the supporting assembly form electrostatic dust collection units in the electrostatic dust collectiondevice, and the electrostatic dust collection units are arranged in parallel; the shielding tube is in a multi-cylinder shape arranged in a concentric circle mode, and the dust collecting electrodes are sequentially arranged in the radial direction from the dust collecting electrodes to the outer side in an increasing mode. Gas dust collection can be achieved on the premise that air is not brokenthrough, the device is simple in structure and low in energy consumption, ozone cannot be generated, and secondary pollution is avoided.