CN218997353U - High-activity composite particle generator and device - Google Patents

Abstract

The utility model discloses a high-activity composite particle generator and a device, which comprises paired electrode elements and is characterized in that: the electrode elements comprise a first electrode element comprising a tubular dielectric and a first discharge electrode and a second electrode element provided with a second discharge electrode. The tubular dielectric is an insulator and is provided with a hollow inner cavity. The high-activity composite particle generator has the advantages of stable structure, small size, low power consumption, safety and high efficiency, and can be applied to various application scenes such as water purification, aldehyde removal and deodorization, sterilization and epidemic prevention, material surface modification, nano medicine production, medical cosmetology, tumor auxiliary treatment and the like.

Description

High-activity composite particle generator and device

Technical Field

The utility model relates to the fields of water purification, aldehyde removal, deodorization, disinfection, epidemic prevention and biomedical treatment, in particular to a high-activity composite particle generator and a device.

Background

The composite particle technology is more and more focused because of the advantages of biological activity, small particle size, strong permeability, stable performance, high-efficiency sterilization, disinfection, rapid odor removal and the like. The existing composite particle generator or device (as in comparative example 1: application number CN 201710238050.7) still has the following disadvantages:

(1) The electrode is easy to corrode: the electrode (discharge electrode or counter electrode) is exposed in the external environment, is easily oxidized by high-activity oxygen-containing free radicals generated by discharge to corrode and age, influences the stability of discharge, and reduces the service life of the composite particle generator and the dosage of composite particles.

(2) Is susceptible to ambient conditions: in particular, the dosage of the composite particles is reduced in the case of being susceptible to temperature and humidity, such as in dry air, and is not suitable for use in high humidity environments and water, and the discharge is terminated to prevent the composite particles from being produced.

(3) The dosage and activity of the composite particles are to be improved: the electrode (discharge electrode or counter electrode) is exposed in the external environment, the electrode is easy to oxidize and corrode, and the high-energy power supply cannot be loaded in consideration of safety and other factors, so that the dosage and activity of the composite particles are limited.

In view of the above, the present utility model provides a high-activity composite particle generator and apparatus that can fully solve the above problems, has a compact structure, is safe and reliable, and can be applied to high humidity environments and working in water to stably and efficiently manufacture large-dose and high-activity composite particles.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a high-activity composite particle generator and a device.

In order to solve the technical problems, the following technical scheme is adopted:

the high-activity composite particle generator comprises paired electrode elements and a high-voltage power supply, and is characterized in that: the electrode elements include a first electrode element and a second electrode element,

the first electrode element comprises a tubular dielectric and a first discharge electrode,

the tubular dielectric medium is an insulator and is provided with a hollow inner cavity;

the first discharge electrode is formed by a part filled in an inner cavity of the tubular dielectric medium, the first discharge electrode is tightly contacted with the inner surface of the tubular dielectric medium, and the inner cavity part surrounded by the first discharge electrode and the inner surface of the tubular dielectric medium which is tightly contacted is an equipotential body;

the second electrode element is provided with a second discharge electrode;

the first electrode element and the second electrode element are oppositely arranged, so that the first discharge electrode and the second discharge electrode are parallel, and the first electrode element and the second electrode element are contacted or close to each other, so that a large number of high-activity composite particles with nanometer particle diameters of at least one of charged particles, oxygen-containing free radicals and nitrogen-containing free radicals are formed under the action of electron avalanche effect or electrostatic atomization;

one end of the high-voltage power supply is electrically connected with the first discharge electrode, and the other end of the high-voltage power supply is electrically connected with the second discharge electrode.

Further, the structure of the first electrode element is the same as the structure of the second electrode element.

Further, the second discharge electrode is in a bar shape, a strip shape, an impeller shape, a planar shape, a mesh shape, or a conductive pattern.

Further, the second electrode element further comprises a substrate, and the second discharge electrode formed by the conductive pattern is covered on one side of the substrate.

Further, the second electrode element further includes a dielectric layer entirely covering the second discharge electrode such that the second discharge electrode is disposed between the dielectric layer and the substrate.

Further, the second electrode element is disposed on an outer surface of the tubular dielectric.

Further, the second discharge electrode is spiral, bar-shaped, grid-shaped, impeller-shaped or a conductive pattern with a hollowed-out area.

Further, the second discharge electrode is coated on the outer surface of the tubular dielectric medium in a winding, bonding or electroplating mode.

Further, the second electrode element further includes a dielectric layer entirely covering the second discharge electrode, such that the second discharge electrode is insulation-encapsulated.

Further, one end of the inner cavity is sealed, an opening is formed in the other end of the inner cavity, and a packaging piece is arranged on the opening;

or openings are formed at two ends of the inner cavity, and packaging parts are arranged on the openings and seal the two ends of the inner cavity.

Further, the package includes a first package and a second package, the first package is disposed at one end of the inner cavity, and the second package is disposed at the other end of the inner cavity.

Further, the first package or the second package is a part of a tubular dielectric, and the first package and the tubular dielectric are integrally formed, or the second package and the tubular dielectric are integrally formed.

Further, the first or second package is a separate insulator, and the first or second package is used to package one end of the tubular dielectric, the discharge electrode, and the electrical connection of the high voltage power line.

Further, a dielectric segment is provided in the tubular dielectric on a side near the package therein, the dielectric segment being composed of a gaseous dielectric.

The high-activity composite particle generating device comprises the high-activity composite particle generator, a power unit, a sensor unit and a circuit unit,

the power unit is used for providing power for the flow of the working medium or the composite particles so as to generate fluid;

the sensor unit is used for monitoring the working state and the fluid condition of the high-activity composite particle generator;

the circuit unit is used for supplying power to the high-activity composite particle generator, the power unit and the sensor unit and controlling actions.

Further, the apparatus further comprises an ultraviolet irradiation unit for irradiating ultraviolet rays to the high-activity composite particle generator.

Further, a catalyst unit composed of one or more of a transition metal, a rare metal or a rare earth metal and an oxide thereof is further included, and the catalyst unit is disposed downstream of the high-activity composite particle generator in an air flow direction such that all or part of the formed high-activity composite particles pass through the catalyst unit.

Due to the adoption of the technical scheme, the method has the following beneficial effects:

the utility model relates to a high-activity composite particle generator and a device, which utilize tubular dielectric medium with high dielectric constant to closely cover novel electrode materials (fiber forming body, porous medium, elastic material or liquid) so as to form a rough equipotential body in the inner cavity of the tubular dielectric medium, protect a discharge electrode, eliminate harmful discharge in the inner cavity of the tubular dielectric medium, improve the utilization efficiency of energy and environmental adaptability.

Due to the adoption of the novel discharge electrode material, the discharge electrode can be integrally formed and integrally filled into the hollow cavity of the tubular dielectric medium, and can also be granular, capsule-shaped (the electrode material is packaged in an elastic or porous shell material) or powder-shaped, and the hollow cavity of the tubular dielectric medium can be gradually filled in a split type. Whether in an integral or split filling mode, air, organic gas and the like in the inner cavity of the tubular dielectric medium can be discharged or adsorbed, smooth filling of the discharge electrode can be realized at normal temperature, bonding with the inner cavity wall of the tubular dielectric medium is realized, and dielectric breakdown inside the tubular dielectric medium is prevented. Meanwhile, the surface features (a large number of cilia, spikes or bulges) of the fiber forming body, the porous medium, the elastic material or the liquid, the elastic deformation or the fluidity are utilized, and the close contact with the tubular dielectric medium is easy to realize under the condition that the surface features or the insulating properties of the inner cavity are not damaged, so that an equipotential body is formed in the inner cavity of the tubular dielectric medium, the internal discharge of the inner cavity of the tubular dielectric medium is prevented, the stability of dielectric barrier discharge is ensured, and the dosage and the energy utilization efficiency of the high-activity composite particles are improved. In addition, the temperature rise generated during the operation of the tubular dielectric medium is transferred to the discharge electrode, and the novel electrode material is more attached to the inner cavity wall of the tubular dielectric medium after self-expansion due to the thermal expansion effect, so that the stability of dielectric barrier discharge is further ensured. In addition, the novel discharge electrode material is easy to realize the electric connection of the discharge electrode and the high-voltage power supply (can adopt modes of direct insertion and the like), avoids the difficult processing technology such as soft soldering and the like, and improves the yield and quality of products.

The discharge electrode is doped with one or more of transition metal, rare metal or rare earth metal and oxides thereof so as to catalyze and decompose organic gas, oxygen-containing free and the like remained in the inner cavity of the tubular dielectric medium, protect the discharge electrode and ensure the stability of dielectric barrier discharge.

Drawings

The utility model is further described below with reference to the accompanying drawings:

fig. 1 is a schematic view of a high activity composite particle generator according to example 1 of the present utility model.

Fig. 2 is a schematic cross-sectional view of an electrode member according to embodiment 1 of the present utility model.

Fig. 3 is a schematic view of a high activity composite particle generator according to example 2 of the present utility model.

Fig. 4 is a schematic view of a high activity composite particle generator according to example 3 of the present utility model.

Fig. 5 is a schematic diagram of a high activity composite particle generator according to example 4 of the present utility model.

Fig. 6 is a schematic diagram of a high activity composite particle generator according to example 5 of the present utility model.

Fig. 7 is a schematic view of a high activity composite particle generator according to example 6 of the present utility model.

Fig. 8 is a schematic cross-sectional view of a first electrode element according to embodiment 6 of the present utility model.

Fig. 9 is a schematic view of the temperature of a tubular dielectric medium in continuous operation of the generator according to the embodiment of the present utility model and the comparative example.

Fig. 10 is a schematic view of a high activity composite particle generating apparatus according to an embodiment of the present utility model.

In the figure: 1. the electrode comprises a first electrode element, 11, a tubular dielectric medium, 12, a first packaging piece, 13, a second packaging piece, 15 and a hollowed-out area of a second discharge electrode, 2, a first discharge electrode, 3, a medium section, 4, a high-voltage power supply, 41, a first high-voltage power line, 42, a second high-voltage power line, 5, a second electrode element, 51, a second discharge electrode, 52, a substrate, 53 and a dielectric layer.

Detailed Description

The present utility model will be further described in detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.

Example 1

As shown in fig. 1 to 2, the high-activity composite particle generator includes, as main components: a pair of electrode elements, a dielectric segment 3 and a high voltage power supply 4. The electrode elements comprise a first electrode element 1 and a second electrode element 5, the first electrode element 1 comprising a tubular dielectric 11 and a first discharge electrode 2,

as a further illustration of an embodiment of the present utility model, the tubular dielectric 11 is an insulator and the tubular dielectric 11 is provided with a hollow interior.

Specifically, the two ends of the tubular dielectric medium 11 are sealed, so that on one hand, external working medium or foreign matter can be prevented from entering the inner cavity to affect the discharge stability, on the other hand, insulation can be enhanced, safety is improved, and discharge or electric leakage (such as arc discharge or glow discharge) from the two ends of the tubular dielectric medium 11 can be prevented from affecting the generation of composite particles.

Specifically, the first discharge electrode 2 is formed by a portion filled in the inner cavity of the tubular dielectric 11, and the first discharge electrode 2 is in close contact with the inner surface of the tubular dielectric 11, and the inner cavity portion surrounded by the first discharge electrode 2 and the inner surface of the tubular dielectric 11 in close contact is an equipotential body (i.e., the potential difference between any two points is zero).

Specifically, the second electrode element 5 is provided with a second discharge electrode 51, and the structure of the first electrode element 1 is the same as that of the second electrode element 5.

Specifically, the first electrode element 1 and the second electrode element 5 are disposed opposite to each other, so that the first discharge electrode 2 and the second discharge electrode 51 are parallel, and the first electrode element 1 and the second electrode element 5 are in contact with each other or close to each other, so as to form a large amount of high-activity composite particles with nano particle diameters of at least one of charged particles, oxygen-containing free radicals and nitrogen-containing free radicals under the action of electron avalanche effect or electrostatic atomization.

Specifically, in the present embodiment, referring to fig. 1, in order to optimize the arrangement of the first electrode element 1 and the second electrode element 5, the first electrode element 1 and the second electrode element 5 are arranged in parallel and opposite to each other, and the first electrode element 1 and the second electrode element 5 are in contact with or close to each other, so as to form a large amount of high-activity composite particles of at least one nanoparticle size of charged particles, oxygen-containing free radicals, and nitrogen-containing free radicals under the effect of electron avalanche effect or electrostatic atomization.

Specifically, one end of the high voltage power supply 4 is electrically connected to the first discharge electrode 2, and the other end of the high voltage power supply is electrically connected to the second discharge electrode 51, so that a high voltage electric field is applied between the first discharge electrode 2 and the second discharge electrode 51, and a stable and uniform dielectric barrier discharge is formed in a contact or close area between the pair of tubular dielectrics 11, so that a large number of high-activity composite particles with nano particle diameters of at least one of charged particles, oxygen-containing free radicals and nitrogen-containing free radicals are formed by the working medium between the pair of tubular dielectrics 11 under the action of electron avalanche effect or electrostatic atomization. Specifically, two ends of the high voltage power supply 4 are electrically connected with a first high voltage power supply line 41 and a second high voltage power supply line 42, respectively, the first high voltage power supply line 41 is connected to one end of the electrode element, and the second high voltage power supply line 42 is connected to the other end of the electrode element.

As a further illustration of the embodiments of the present utility model, the tubular dielectric 11 is constructed of a high dielectric constant material, preferably ceramic, glass, resin, etc., to increase safety and stability of discharge, particularly in high humidity environments and water.

As a further illustration of an embodiment of the present utility model, one end of the inner cavity is sealed, and the other end of the inner cavity is provided with an opening, and the opening is provided with a package.

Or openings are formed at two ends of the inner cavity, and packaging parts are arranged on the openings and seal the two ends of the inner cavity. The package comprises a first package 12 and a second package 13, wherein the first package 12 is arranged at one end of the inner cavity, and the second package 13 is arranged at the other end of the inner cavity.

Specifically, the first package 12 or the second package 13 is a part of the tubular dielectric 11, and the first package 12 and the tubular dielectric 11 are integrally formed, or the second package 13 and the tubular dielectric 11 are integrally formed, or may be different dielectrics, such as epoxy resin, etc.

Specifically, the first package 12 or the second package 13 is an independent insulator, and the first package 12 or the second package 13 is used for packaging one end of the tubular dielectric 11, the discharge electrode and the electrical connection part of the high-voltage power line.

When the structure is used, the two ends of the tubular dielectric medium 11 can be sealed, so that on one hand, external working medium or foreign matters can be prevented from entering the inner cavity to influence the discharge stability, on the other hand, the insulation can be enhanced, the safety is improved, and the discharge or electric leakage (such as arc discharge or glow discharge) from the two ends of the tubular dielectric medium 11 can be prevented from influencing the generation of composite particles.

As a further illustration of an embodiment of the utility model, a dielectric segment 3 is provided in the tubular dielectric 11 on the side close to the encapsulation therein, said dielectric segment 3 being constituted by a gaseous dielectric, preferably air or a noble gas. On the one hand, the method can be used for strengthening the insulating property of one side of the packaging piece, and on the other hand, the length or the area of the first discharge electrode 2 or the second discharge electrode 51 can be adjusted by adjusting the set length of the method, so that the length or the area of the dielectric barrier discharge region can be adjusted, and the generation dosage of the high-activity composite particles can be adjusted.

As a further explanation of the embodiment of the present utility model, the first discharge electrode 2 is formed of one or more materials selected from a fiber molded body, a porous medium, an elastic material, and a liquid.

Specifically, the first discharge electrode 2 is a fiber molded body, and a conductor or semiconductor material formed by a plurality of organic and/or inorganic fibers, such as ceramic fibers, glass fibers, polyester fibers, nylon fibers, carbon nanotubes, carbon fibers, and the like.

The first discharge electrode 2 is a porous medium, a conductor or semiconductor material composed of porous organic and/or inorganic materials, such as alumina, titania, bismuth telluride, carbon nanotubes, etc.

The first discharge electrode 2 is an elastic material, preferably a conductive or semiconductive organic material, such as nylon, polyurethane, etc.

The first discharge electrode 2 is a liquid, preferably an aqueous solution in which an electrolyte is dissolved, such as physiological saline or the like.

Due to the adoption of the novel electrode material, the first discharge electrode 2 or the second discharge electrode 51 can be integrally formed to be integrally filled into the hollow cavity of the tubular dielectric medium 11, and can also be granular, capsule-shaped (the electrode material is encapsulated in an elastic or porous shell material) or powder-shaped to be split and gradually filled into the hollow cavity of the tubular dielectric medium 11. Whether in an integral or split filling mode, air, organic gas and the like in the inner cavity of the tubular dielectric medium 11 can be discharged or adsorbed, smooth filling of the discharge electrode can be realized at normal temperature, bonding with the inner cavity wall of the tubular dielectric medium 11 is realized, and dielectric breakdown inside the tubular dielectric medium 11 is prevented. Meanwhile, the surface features (a large number of cilia, spikes or bulges) and elastic deformation or fluidity of the fiber forming body, the porous medium, the elastic material or the liquid are utilized, so that the fiber forming body is easy to realize close contact with the tubular dielectric 11 under the condition that the surface features or the insulating properties of the inner cavity are not damaged, a rough equipotential body is formed in the inner cavity of the tubular dielectric 11, the internal discharge of the tubular dielectric 11 is prevented, the stability of dielectric barrier discharge is ensured, and the dosage and the energy utilization efficiency of the high-activity composite particles are improved. In addition, the temperature rise generated during the operation of the tubular dielectric medium 11 is transferred to the discharge electrode, and the novel electrode material is attached to the inner cavity wall of the tubular dielectric medium 11 after self-expansion due to the thermal expansion effect, so that the stability of dielectric barrier discharge is further ensured. In addition, by adopting the novel electrode material, the electric connection between the discharge electrode and the high-voltage power supply 4 is easy to realize (a direct insertion mode and the like can be adopted), the difficult processing technology such as soft soldering and the like is avoided, and the yield and quality of products are improved.

Specifically, the first discharge electrode 2 or the second discharge electrode 51 is doped with one or more of transition metal, rare metal or rare earth metal and oxides thereof, such as platinum, rhodium, palladium, manganese-based catalyst, etc., so as to catalyze and decompose the organic gas, oxygen-containing free, etc. remained in the inner cavity of the tubular dielectric 11, thereby protecting the discharge electrode and simultaneously guaranteeing the stability of the dielectric barrier discharge.

Example 2

As shown in fig. 3, the inner cavity of the tubular dielectric 11 is no longer provided with the dielectric segment 3, and the discharge electrodes are filled up, so that the overlapping area between the discharge electrode pairs is increased, the area of uniform discharge is increased, the generation dosage of the high-activity composite particles is further increased, and the generation dosage of the high-activity composite particles can be increased by more than 35%. Meanwhile, since the creepage distance of the discharge electrode pair at the end of the first package 12 or the second package 13 is very short, the first package 12 or the second package 13 needs to use a dielectric material with a high dielectric constant, such as glass, epoxy resin, etc., to strengthen the insulation of the side.

Other features are the same as in example 1.

Example 3

As shown in fig. 4, the structure of the second electrode member 55 was modified on the basis of embodiment 1, with the structure of the first electrode member 1 maintained unchanged.

Specifically, the second electrode element 55 is provided with a second discharge electrode 51, and the length or width of the second discharge electrode 51 is greater than the thickness thereof, so as to increase the heat dissipation area and the heat dissipation capacity, maintain the stability of discharge, and increase the generation capacity of high-activity composite particles.

The first electrode element 11 and the second electrode element 55 are disposed opposite to each other such that the first discharge electrode 22 and the second discharge electrode 51 are parallel, and the first electrode element 11 and the second electrode element 55 are in contact with or close to each other to form a large number of high-activity composite particles of at least one nano-particle diameter of charged particles, oxygen-containing radicals, and nitrogen-containing radicals under the effect of electron avalanche effect or electrostatic atomization.

Specifically, in this embodiment, referring to fig. 4, in order to optimize the arrangement of the first electrode element 1 and the second electrode element 55, the first electrode element 1 and the second electrode element 55 are disposed opposite to each other, and the first discharge electrode 22 and the second discharge electrode 51 are disposed in parallel, and the first electrode element 1 and the second electrode element 55 are in contact with or close to each other, so as to form a large number of high-activity composite particles having a nano particle diameter of at least one of charged particles, oxygen-containing free radicals, and nitrogen-containing free radicals under the electron avalanche effect or electrostatic atomization.

As a further explanation of the embodiment of the present utility model, the second discharge electrode 51 is in the shape of a rod, a bar, an impeller, a plane, a mesh, or a conductive pattern. On the one hand, the radiating area and the radiating capacity can be increased, the stability of discharge is maintained, the generation capacity of high-activity composite particles is increased, and on the other hand, the high-voltage composite particles are convenient to electrically connect with the high-voltage power supply 4 (such as welding and the like).

As a further illustration of an embodiment of the present utility model, the first discharge electrode 22 is one or more of a fiber molded body, a porous medium, an elastic material, and a liquid.

Example 4

As shown in fig. 5, the second electrode element 55 further includes a substrate 52, where one side of the substrate 52 is covered with the second discharge electrode 51 formed by various conductive patterns (such as impeller shape, plane shape, grid shape, pattern shape, etc.), and the substrate 52 is formed by a material with high heat conductivity, such as ceramic, PCB board, aluminum substrate, etc., so as to enhance the heat dissipation effect of the second discharge electrode 51.

Other features are the same as in example 3.

Example 5

As shown in fig. 6, the second electrode member 55 further includes a dielectric layer 53, wherein the dielectric layer 53 is made of a material with a high dielectric constant, such as ceramic, epoxy, etc., and completely covers the second discharge electrode 51, so that the second discharge electrode 51 is disposed between the dielectric layer 53 and the substrate 52, to strengthen the electrical insulation of the second discharge electrode 51, protect the second discharge electrode 51 from corrosion and aging, and increase the stability of dielectric barrier discharge.

Other features are the same as in example 4.

Example 6

As shown in fig. 7 and 8, the structure of the second electrode member 55 was modified on the basis of embodiment 1 by keeping the structure of the first electrode member 1 unchanged.

Specifically, the second electrode element 514 is disposed on the outer surface of the tubular dielectric 11, and the second electrode element 514 is provided with a second discharge electrode 51, where the length or width of the second discharge electrode 51 is greater than the thickness thereof, so as to increase the heat dissipation area and the heat dissipation capacity, maintain the stability of discharge, and increase the occurrence of high-activity composite particles.

The first electrode element 1 and the second electrode element 514 are disposed opposite to each other such that the first discharge electrode 22 and the second discharge electrode 51 are parallel, and the first electrode element 1 and the second electrode element 514 are in contact with or close to each other to form a large number of high-activity composite particles of at least one nano particle diameter of charged particles, oxygen-containing free radicals, and nitrogen-containing free radicals under the effect of electron avalanche effect or electrostatic atomization.

Specifically, in this embodiment, referring to fig. 7, in order to optimize the arrangement manner of the first electrode element 1 and the second electrode element 514, the first electrode element 1 and the second electrode element 514 are disposed opposite to each other, and the first discharge electrode 22 and the second discharge electrode 51 are disposed in parallel, and the first electrode element 1 and the second electrode element 514 are in contact with or close to each other, so as to form a large number of high-activity composite particles with nano particle diameters of at least one of charged particles, oxygen-containing free radicals, and nitrogen-containing free radicals under the effect of electron avalanche effect or electrostatic atomization.

As a further explanation of the embodiment of the present utility model, the second discharge electrode 51 is a spiral, a bar, a grid, a wheel or a conductive pattern with a hollowed-out area. The hollowed-out area is the hollowed-out area 15 of the second discharge electrode to increase the existence and contact of the working medium between the tubular dielectric 11 and the second discharge electrode 51. On the one hand, the radiating area and the radiating capacity can be increased, the stability of discharge is maintained, the generation capacity of high-activity composite particles is increased, and on the other hand, the high-voltage composite particles are convenient to electrically connect with the high-voltage power supply 4 (such as welding and the like).

As a further illustration of an embodiment of the present utility model, the second discharge electrode 51 is coated on the outer surface of the tubular dielectric 11 by winding, bonding or plating.

As a further explanation of the embodiment of the present utility model, the second electrode element 514 further includes a dielectric layer (not shown in the drawing) that completely covers the second discharge electrode 51, so that the second discharge electrode 51 is insulated and packaged, protects the second discharge electrode 51 from corrosion and aging, and can increase the stability of dielectric barrier discharge.

Referring to fig. 9 and 10, a high-activity composite particle generating apparatus includes: the high activity composite particle generator of the foregoing embodiment 1 or embodiment 2. And further comprises a power unit, a sensor unit, a circuit unit, an ultraviolet irradiation unit and a catalyst unit.

In particular, power units, such as blowers, water pumps, compressed gas, etc., are used to power the flow of working medium or composite particles to produce a fluid.

Specifically, the sensor unit is used for monitoring the working state (including the concentration, the component, the activity, the by-product condition, the working temperature, the current, the voltage and other parameters of the composite particles) and the surrounding fluid condition (including the component, the temperature, the humidity, the flow rate, the pressure and other parameters) of the high-activity composite particle generator.

Specifically, the circuit unit is used for supplying power to the high-activity composite particle generator, the power unit and the sensor unit and controlling actions.

Specifically, the ultraviolet irradiation unit is used for irradiating ultraviolet rays (such as an LED-UV lamp, etc.) to the high-activity composite particle generator, and by using the high energy of the ultraviolet rays, the low-activity (low oxidation-reduction potential) free radicals or chemical bonds of particles are opened to form the high-activity (high oxidation-reduction potential) free radicals or particles, so that the dosage and activity of the composite particles are improved, and the dosage and activity of the composite particles generated by the generating device can be improved by about 20%.

Specifically, the catalyst unit is composed of one or more of a transition metal, a rare metal or a rare earth metal and an oxide thereof, such as platinum, rhodium, palladium, manganese-based catalyst, etc., which is disposed downstream of the high-activity composite particle generator in the air flow direction such that all or part of the formed high-activity composite particles pass through the catalyst unit. The catalyst unit can increase the contact area and reaction time between the high-activity composite particles and the treatment object, and catalyze the low-activity composite particles to generate the high-activity composite particles, so that the dosage and activity of the composite particles are further improved, the dosage and activity of the composite particles generated by the generating device can be improved by about 30%, the treatment capacity of the composite particles is greatly improved, and byproducts (such as ozone, nitrogen dioxide and the like) can be reduced.

The working medium is one or more of water vapor, hydrogen, oxygen, nitrogen, air, rare gas or medicine, and different working mediums are selected according to different application scenes so as to realize different action effects. If the working medium is water vapor, under the action of electron avalanche effect or electrostatic atomization, a large amount of high-activity hydrated free radicals (such as hydroxyl groups and the like) are generated at the same time when charged particles are generated. If the working medium is nitrogen, under the action of electron avalanche effect, high-activity nitrogen-containing free radicals (such as NO and the like) with medical dosage (such as 1-80 ppm) are generated at the same time, and the skin disease treatment and the prevention and the treatment of respiratory diseases (such as slow pulmonary obstruction, pulmonary fibrosis and the like) can be realized. If the working medium is rare gas (such as argon gas, etc.), under the action of electron avalanche effect, high-energy charged particles are generated, and meanwhile, high-activity oxygen-containing free radicals (such as hydroxyl, etc.) are generated, so that the method can be used in biomedical fields such as material surface modification, nano-drug production, medical cosmetology, tumor auxiliary treatment, etc.

In the prior art, except for the case described in application number CN201710238050.7 where the discharge electrode (titanium needle) is exposed to the outside air (denoted as comparative example 1), or the discharge electrode formed by inserting a rod-like conductor (such as tungsten wire) into the inner cavity of the tubular dielectric 11 (denoted as comparative example 2), or the discharge electrode formed by coating/plating a conductive film on the inner surface of the tubular dielectric 11 (denoted as comparative example 3), or the discharge electrode formed by filling a conductive paste (such as solder paste) into the inner cavity of the tubular dielectric 11 (denoted as comparative example 4), the tubular dielectric 11 of the examples and comparative examples of the present utility model are each made of quartz tubes (inner diameter 2mm, outer diameter 2.4 mm), and other experimental data are shown in table 1 and fig. 9:

TABLE 1 Table of experimental data for different composite particle generators (ambient temperature 20 ℃ C., relative humidity 55%)

As can be seen from table 1 and fig. 9: compared with the comparative example, the embodiment of the utility model adopts the novel porous electrode material to form the discharge electrode pair which is encapsulated in the tubular dielectric medium 11, and forms a rough equipotential body in the inner cavity of the tubular dielectric medium 11, thereby preventing the internal discharge of the tubular dielectric medium 11, guaranteeing the stability of dielectric barrier discharge, greatly improving the dosage and activity of the high-activity composite particles, increasing the release amount of the composite particles by 0.62-22.7 times, and increasing the activity of the composite particles (indicated by the efficiency of killing the novel coronavirus) by 0.4-14 times. Meanwhile, the working temperature of the discharge electrode is low, compared with comparative examples 2-4, the working temperature of the discharge electrode is reduced by more than 42.2%, the energy utilization efficiency is improved, and even under the environment with high humidity (such as relative humidity > 85%) or extremely low humidity (such as relative humidity < 15%), the embodiment of the utility model can still stably work so as to continuously and stably obtain composite particles, is hardly affected, enhances the environmental adaptability of the device, and improves the safety and stability of products. In comparative example 2, an air gap was formed between the discharge electrode and the inner surface of the tubular dielectric body 11, and an internal discharge was formed in the air gap, which resulted in a large amount of heat generation, and the generator could not be operated continuously (operation was terminated in about 20 minutes of continuous operation). In comparative example 3, a large amount of air was present in the hollow inner cavity of the tubular dielectric 11, and internal discharge was present at the edge of the discharge electrode formed of the conductive film, which resulted in internal heat generation, and further the generator could not be operated continuously (operation was terminated for about 30 minutes continuously), and the processing of the coated/plated conductive film required high temperature operation, which easily damaged the structure and insulation characteristics of the tubular dielectric 11, and the coated/plated conductive film resulted in the generation of bubbles or air segments as its thickness increased, which destroyed the internal equipotential body structure, and the coated/plated conductive film of the relative thickness of the bubble-free or air segments in the ideal state was difficult to achieve in the conventional processing technique. In comparative example 4, the discharge electrode formed by filling the inner cavity of the tubular dielectric 11 with a conductive paste (such as solder paste) is difficult to fill or fill in the smaller tubular dielectric 11 (the defective rate of the product is much higher than that of the embodiment of the present utility model), so that the presence of bubbles or air segments is liable to generate internal discharge, which causes a large amount of internal heat generation, and under high temperature expansion, the conductive paste may melt and flow to destroy the equipotential body inside, further deteriorating and unstable the discharge, and further the generator cannot operate continuously (operation is terminated for about 25 minutes). In the embodiment of the present utility model, the porous molded body structure is adopted, so that the temperature rise generated during the operation of the generator is raised, the thermal expansion can further and tightly contact the discharge electrode with the tubular dielectric medium 11, the discharge is more stable, and the continuous and stable long-term operation can be realized.

Specifically, the technical effects of the utility model are as follows:

(1) The environmental adaptability is enhanced, and the application scene is expanded: the novel electrode material is formed by the novel electrode material, the discharge electrode pair is skillfully packaged in the tubular dielectric 11, the discharge mode is converted from corona discharge (generally small in discharge current density and nonuniform in discharge current density) of comparative example 1 into novel dielectric barrier discharge (large in discharge current density, uniform and stable), and the novel dielectric barrier discharge is not only suitable for dry environment conditions, but also suitable for high-humidity environment and working in water, greatly improves the environmental adaptability of products, and expands application scenes. Because it can produce uniform discharge with larger current density, has good biological safety, and especially when special working medium such as rare gas is adopted, the product can also be used in biomedical fields such as material surface modification, nano-drug manufacturing, medical cosmetology, tumor auxiliary treatment and the like.

(2) Greatly improves the generation dosage and activity of the composite particles: if a rod-shaped conductor (such as a copper wire, a tungsten wire, etc.) is inserted into the cavity of the tubular dielectric 11 to form a discharge electrode (referred to as comparative example 2), the inner diameter of the tubular dielectric 11 needs to be larger than the outer diameter of the rod-shaped conductor (otherwise, the rod-shaped conductor is difficult to be inserted, and air and organic gas in the cavity are difficult to be discharged), so that an air gap exists between the discharge electrode and the cavity of the tubular dielectric 11, which results in discharge of the cavity of the tubular dielectric 11, and a series of problems such as oxidation corrosion of the discharge electrode, higher voltage requirement, unstable discharge, increased heat generation, and additional power consumption are caused. The utility model adopts a novel electrode material (fiber forming body, porous medium, elastic material or liquid) and a normal-temperature packaging filling mode, utilizes the surface characteristics (a large number of cilia, spikes or bulges) of the fiber forming body, the porous medium, the elastic material or the liquid, and the elastic deformation or fluidity, and easily realizes the close contact packaging filling with the tubular dielectric 11 under the condition of not damaging the surface characteristics and the insulating characteristics of the inner cavity of the tubular dielectric 11 so as to form a rough equipotential body in the inner cavity of the tubular dielectric 11, prevent the internal discharge of the tubular dielectric 11, ensure the stability of dielectric barrier discharge and improve the dosage and the energy utilization efficiency of high-activity composite particles. Meanwhile, the ultraviolet irradiation unit and the catalyst unit are adopted, so that the generation dosage and activity of the composite particles are further improved, byproducts are reduced, and the biological safety of the composite particles is enhanced.

(3) The safety and stability of the product are greatly improved: the product of the utility model uses the tubular dielectric 11 with high dielectric constant and sealed at both ends to cover and encapsulate the discharge electrode pair, protect the discharge electrode, prevent electric shock and electric leakage (such as arc discharge, glow discharge, etc.), and simultaneously forms a rough equipotential body in the inner cavity of the tubular dielectric 11, eliminates the internal discharge in the inner cavity of the tubular dielectric 11, forms stable and uniform dielectric barrier discharge only in the contact or close area between the tubular dielectric 11 pair, has low working temperature (normal temperature or near normal temperature), and can continuously and stably manufacture high-activity composite particles.

The above is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present utility model to solve the substantially same technical problems and achieve the substantially same technical effects are encompassed within the scope of the present utility model.

Claims (17)

1. The high-activity composite particle generator comprises paired electrode elements and a high-voltage power supply, and is characterized in that: the electrode elements include a first electrode element and a second electrode element,

the first electrode element comprises a tubular dielectric and a first discharge electrode,

the tubular dielectric medium is an insulator and is provided with a hollow inner cavity;

the first discharge electrode is formed by a part filled in an inner cavity of the tubular dielectric medium, the first discharge electrode is tightly contacted with the inner surface of the tubular dielectric medium, and the inner cavity part surrounded by the first discharge electrode and the inner surface of the tubular dielectric medium which is tightly contacted is an equipotential body;

the second electrode element is provided with a second discharge electrode;

the first electrode element and the second electrode element are oppositely arranged, so that the first discharge electrode and the second discharge electrode are parallel, and the first electrode element and the second electrode element are contacted or close to each other, so that a large number of high-activity composite particles with nanometer particle diameters of at least one of charged particles, oxygen-containing free radicals and nitrogen-containing free radicals are formed under the action of electron avalanche effect or electrostatic atomization;

one end of the high-voltage power supply is electrically connected with the first discharge electrode, and the other end of the high-voltage power supply is electrically connected with the second discharge electrode.

2. The high activity composite particle generator of claim 1, wherein: the first electrode element has the same structure as the second electrode element.

3. The high activity composite particle generator of claim 1, wherein: the second discharge electrode is in the shape of a bar, an impeller, a plane, a mesh, or a conductive pattern.

4. The high activity composite particle generator of claim 1, wherein: the second electrode element further comprises a substrate, and one side of the substrate is covered with the second discharge electrode formed by the conductive pattern.

5. The high activity composite particle generator of claim 4, wherein: the second electrode element further includes a dielectric layer entirely covering the second discharge electrode such that the second discharge electrode is disposed between the dielectric layer and the substrate.

6. The high activity composite particle generator of claim 1, wherein: the second electrode element is disposed on an outer surface of the tubular dielectric.

7. The high activity composite particle generator of claim 6, wherein: the second discharge electrode is spiral, strip-shaped, grid-shaped, impeller-shaped or a conductive pattern with a hollowed-out area.

8. The high activity composite particle generator of claim 6, wherein: the second discharge electrode is coated on the outer surface of the tubular dielectric medium in a winding, bonding or electroplating mode.

9. The high activity composite particle generator of claim 8, wherein: the second electrode element further includes a dielectric layer that completely covers the second discharge electrode such that the second discharge electrode is insulation-encapsulated.

10. The high activity composite particle generator of any one of claims 1-9, wherein: one end of the inner cavity is sealed, an opening is formed in the other end of the inner cavity, and a packaging piece is arranged on the opening;

or openings are formed at two ends of the inner cavity, and packaging parts are arranged on the openings and seal the two ends of the inner cavity.

11. The high activity composite particle generator of claim 10, wherein: the package comprises a first package and a second package, wherein the first package is arranged at one end of the inner cavity, and the second package is arranged at the other end of the inner cavity.

12. The high activity composite particle generator of claim 11, wherein: the first package or the second package is a part of a tubular dielectric, and the first package and the tubular dielectric are integrally formed, or the second package and the tubular dielectric are integrally formed.

13. The high activity composite particle generator of claim 11, wherein: the first package or the second package is an independent insulator, and is used for packaging one end of the tubular dielectric medium, the discharge electrode and the electric connection part of the high-voltage power supply line.

14. The high activity composite particle generator of claim 10, wherein: a dielectric segment is arranged on one side, close to the packaging part, of the tubular dielectric medium, and the dielectric segment is composed of a gas dielectric medium.

15. A high activity composite particle generating apparatus comprising a high activity composite particle generator as claimed in any one of claims 1 to 9, characterized in that: and also comprises a power unit, a sensor unit and a circuit unit,

the power unit is used for providing power for the flow of the working medium or the composite particles so as to generate fluid;

the sensor unit is used for monitoring the working state and the fluid condition of the high-activity composite particle generator;

the circuit unit is used for supplying power to the high-activity composite particle generator, the power unit and the sensor unit and controlling actions.

16. The high-activity composite particle generating apparatus according to claim 15, wherein: the device also comprises an ultraviolet irradiation unit, wherein the ultraviolet irradiation unit is used for irradiating ultraviolet rays to the high-activity composite particle generator.

17. The high-activity composite particle generating apparatus according to claim 15, wherein: and a catalyst unit composed of one or more of a transition metal, a rare metal or a rare earth metal and an oxide thereof, and disposed downstream of the high-activity composite particle generator in an air flow direction such that all or part of the formed high-activity composite particles pass through the catalyst unit.

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