KR20060084691A - Nano particle generator - Google Patents

Abstract

The present invention relates to a nanoparticle generating device having an ion generator. According to the present invention, a heating unit configured to locally heat a material for generating nanoparticles is provided inside the main body, while ions are formed outside the main body together with the nanoparticles by installing an ion generator adjacent to a flow path passing through the main body. To be discharged. The heating unit includes a heat insulating portion having a material accommodating space formed so that a side adjacent to the flow path is opened so that the material evaporated in a gaseous state by heating can enter the flow path, and at least one surface of the material accommodated in the material accommodating space. It includes a heater provided inside the heat insulating portion to be heated. By such a configuration, the present invention can be applied to a small product such as a home appliance by miniaturizing the device, and by charging the nanoparticles by ions, the nanoparticles rapidly diffuse into the space, thereby preventing harmful substances in a state of being charged in the opposite polarity. It can be effectively removed.

Nano particle generator, ion generator, heating unit, miniaturization, sterilization

Description

Nano Particle Generator {NANO PARTICLE GENERATOR}             

1 is a side cross-sectional view showing the overall structure of the nanoparticle generating device according to the present invention.

2 is a plan sectional view of FIG.

Figure 3 is a perspective view showing a heating unit in the nanoparticle generating device according to the present invention.

Figure 4 is an exploded perspective view showing the structure of the heater in the heating unit of the nanoparticle generating device according to the present invention.

Figure 5 is a side cross-sectional view showing the operation of the nanoparticle generating device according to the present invention.

Explanation of symbols on the main parts of the drawings

10: body 11: euro

12 material 13 nanoparticles

30 ion generator 31 ion

100: heating unit 110: heat insulation

111: material accommodation space 120: heater

121: heating body 122: heating wire

The present invention relates to a nanoparticle generating device, and more particularly, to a nanoparticle generating device provided with an ion generator, to reduce the volume of the device to be miniaturized.

In general, nanoparticles refer to ultrafine particles having a size of about 1 nm to 100 nm. These nanoparticles have unique physical and chemical properties that are differentiated from agglomerate states through the surface area that increases exponentially with the fine particle size. Will have

Atoms that make up particles are in a stable state of energy where equilibrium attraction and repulsion force are caused by interactions between surrounding atoms.Atoms on the surface receive only attraction force by internal atoms, Higher energy than atoms located inside. Therefore, nanomaterials with markedly increased surface area have higher energy per unit atom than mass-bound materials, and these surface effects make nanoparticles more active, such as enhanced strength, melting point, or higher activity when used as a catalyst. It will have physical or chemical properties.

There are various methods for producing such nanoparticles, such as gas condensation, flame generation, furnace reactor, plasma generation, spray pyrolysis and electrostatic spraying, among which gas condensation is the most widely studied and most It is a technique being used.

The gas condensation method refers to a method of obtaining small molecules through condensation after evaporating a material to be prepared into nanoparticles under appropriately controlled inert gas conditions. When described as follows.

Conventional nanoparticle generating apparatus includes a main body provided in the form of an electric heating furnace (furnace) to form a high-temperature atmosphere, a ceramic tube installed to penetrate the inside of the main body, and a material for forming nanoparticles A container provided in the ceramic tube and a heating body provided between the outer wall and the inner wall of the main body at a position corresponding to the container.

Therefore, when the heating body is heated in a state in which a predetermined fluid such as low pressure inert gas or air flows through the ceramic tube, the internal temperature of the ceramic tube also increases while the temperature of the main body internal space increases. As a result, when the temperature applied to the material exceeds a predetermined temperature, the material vaporizes, and the vaporized gas is condensed away from the heating side by the fluid flowing inside the ceramic tube to form nanoparticles.

On the other hand, in recent years, by forming and using a substance having a sterilizing ability, such as silver or gold, or a substance having a harmful gas adsorbability, such as carbon or titanium dioxide, as nanoparticles, the sterilization and removal of harmful gases of these substances are greatly improved. Efforts are being made to apply nanoparticles of these materials to home appliances.

Therefore, by installing the nano-particle generating device made of a material having a sterilization or harmful gas removal capability inside a home appliance such as a vacuum cleaner or an air cleaner, the indoor sterilization and harmful gas removal ability through the home appliance may be doubled. It is expected to be.

However, the conventional nanoparticle generator has a structure that heats not only the inner space of the silicon tube in which the material is installed but also the space between the inner wall of the tube and the main body, which requires a lot of space to construct the device, while unnecessary power is wasted. There are many problems that cannot be applied to small devices such as home appliances.

In addition, since most of the nanoparticles generated by the conventional nanoparticle generator have a neutral property, they are mainly moved by diffusion force in the air, and thus a lot of time is required until they are evenly spread in the target space or attached to microorganisms. In addition, there is a problem that the control of the nanoparticles is not easy.

The present invention is to solve such a problem, the object of the present invention can be applied to small devices such as home appliances, as well as nanoparticles produced by the nanoparticles having a polarity by using an ion generator in the space The present invention provides a nanoparticle generating device that can be easily spread and easily attached to a target material.

Nanoparticle generating apparatus according to the present invention for achieving this object is generated from the main body, a heating unit provided inside the main body to heat the material contained in the main body to evaporate to a gaseous state, and the material In the nanoparticle generating device having a flow path provided to penetrate the main body to discharge the nanoparticles to the outside of the main body, the heating unit is provided so as to locally heat the material, and It is characterized in that the ion generator is installed in the portion adjacent to the flow path to discharge the ions to the outside of the body together.

In addition, the heating unit is a heat insulating portion having a material accommodating space formed to open the side adjacent to the flow path so that the material evaporated in a gaseous state by heating to enter the flow path, and the material contained in the material accommodating space It characterized in that it comprises a heater provided inside the heat insulating portion so as to be able to heat at least one surface.

In addition, the heater is characterized in that it comprises a heating element adjacent to form at least one surface of the material receiving space, and a heating element provided to generate the heat required to vaporize the material.

In addition, the ion generator is characterized in that installed in the upstream side of the heater so that the ozone generated in the ion generating process can be reduced to oxygen by the high temperature heat passing through the portion adjacent to the heater on the flow path.

In addition, the ion generator is characterized in that the monopolar ion generator.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail. 1 is a side cross-sectional view showing the overall structure of the nanoparticle generating device according to the present invention, Figure 2 is a plan cross-sectional view of FIG.

As shown in Figures 1 and 2, the nanoparticle generating device according to the present invention is to evaporate to the gas state by heating the body 10 and the material 12 accommodated in the interior of the body to form the appearance The heating unit 100 provided inside the main body 10 and the flow passage 11 provided to penetrate the main body 10 to discharge the nanoparticles 13 generated from the material to the outside of the main body 10. It is provided.

Outside the inlet 11a of the flow path 11, a fluid such as an inert gas or air is supplied to the inside of the flow path 11, and the generated nanoparticles 13 are transferred to the outside of the main body 10. Blowing fan 20 may be installed to provide wind power, but the flow of fluid through the flow path 11 may be adjusted by adjusting the pressure difference between the inlet 11a and the outlet 11b of the flow path. The blowing fan 20 may be omitted.

The heating unit 100 is provided to locally heat the material 12 in direct contact with the material 12, which causes the heating unit 100 to heat the material directly. The space between the material and the material 12 is eliminated, and the heating unit 100 is prevented from unnecessarily heating other materials than the material so that the nanoparticle generating device can be miniaturized. The structure of the heating unit 100 will be described in detail as follows.

3 and 4, the heating unit 100 is provided with a heat insulating portion 110 is formed inside the upper end material receiving space 111 for receiving the material 12, the material receiving space The side 111 is formed so that the side adjacent to the flow path 11 is opened so that the material evaporated into a gaseous state by heating can enter the flow path 11.

In addition, the heating unit 100 further includes a heater 120 provided inside the heat insulating part 110 to form at least one surface of the material accommodating space 111, and the heating unit 100 includes the heater ( 120 allows direct local heating of the material 12. Here, the heat insulating part 110 prevents the heat generated from the heater 120 from being transferred to the inner wall of the main body 10 and is lost, thereby preventing the heating efficiency of the heating unit 100 from being lowered.

The heater 120 includes a heating element 121 formed of a plate-shaped ceramic material, and a heating element embedded in the heating element 121 to generate heat when power is supplied. In the present embodiment, the heating wire 122 is provided with a tungsten wire as the heating element. Here, the heating wire 122 is embedded in the heating body 121 in order to prevent the heating wire 122 from being exposed to the fluid flowing through the flow path 11 and being corroded.

The heating element 121 is formed by a pair of heating plate (121a, 121b) made of a ceramic material in contact with each other in a state where the heating wire 122 is embedded therebetween, both ends of the heating wire 122 is supplied with power It extends to the outside to be connected to an external power line (not shown) for.

In addition, the upper portion of the material accommodating space 111 and the corresponding heater 120 forms a heating part 123 that substantially forms one side of the material accommodating space 111, and the material through the heating part 123. The heating wire 122 adjacent to the material accommodating space 111 is refracted in a zigzag shape and arranged intensively so that the heating action of 12 is performed more effectively. Through the heating wire 122 and the heating element 121 having such an arrangement structure, the heater 120 may heat the surface temperature of the material 12 in contact with the heating part 123 from 20 degrees to 2000 degrees Celsius. Will be.

On the other hand, since the nanoparticles 13 formed from the material 12 are flowed from the high temperature side to the low temperature side through the thermophoretic force generated, some of the generated nanoparticles 13 have a temperature relatively higher than that of the heating unit 100. There is a fear that the number of nanoparticles that are discharged to the outside of the main body 10 by moving toward the upper inner wall side of the lower main body 10.

Therefore, the heat insulating material 15 is provided between the upper portion of the flow path 11 and the main body 10 to prevent this. As a result, the temperature difference between the upper portion of the flow passage 11 and the heating unit 100 is reduced, and thus the nanoparticles 13 are smoothly flowed toward the outlet 11b side of the flow passage 11 and the main body 10 without large loss. It can be discharged to the outside.

In addition, the ion generator 30 is installed in a portion adjacent to the flow path 11 to discharge ions along with the nanoparticles to the outside of the main body. The ion generator 30 may be generally configured by using a pin-to-pin or pin-to-plate negative ion generator or cation generator or various types of ion generators using corona discharge. In particular, the ion generator 30 is the heater 120 so that ozone generated during the ion generation process can be reduced to oxygen by high temperature heat while passing through a portion adjacent to the heater 120 having a temperature of 100 degrees or more locally. It is preferable that it is provided upstream of ().

Some of the high concentration of monopolar ions generated in the anion generator or cation generator installed in this way is attached to the nanoparticles 13 generated from the material 12 to charge the nanoparticles, and a large portion of the monopolar ions to the outside of the main body 10 in an ion state. Discharged. Therefore, nanoparticles and ions having the same polarity can be easily repelled by the coulomb force in the space and spread easily in the space, and more easily attached to microorganisms having the opposite polarity.

Next, the operation of the nanoparticle generating device according to the present invention having the above configuration will be described with reference to FIG. 5. Figure 5 is a side cross-sectional view showing the operation of the nanoparticle generating device according to the present invention.

When the blower fan 20 is operated to allow fluid to flow from the inlet 11a side of the flow path 11 to the outlet 11b side and supply power to the heating wire 122, the heater 120 is heated. The material evaporates from the upper surface of the material 12 exposed to the flow path 11. Atoms of the evaporated material are cooled by colliding with relatively low temperature fluid molecules moving along the flow path 11. In this process, the collision probability between the evaporated material atoms increases and the material atoms aggregate to form a nucleus. The nucleus grows through various mechanisms such as further condensation of vapor molecules in the nucleus, or collision or agglomeration between the nuclei, and the nanoparticles 13 are generated. 11) It is discharged from and supplied to the desired point.

On the other hand, when power is supplied to the ion generator 30 together with the heating wire, a high concentration of ions 31 are generated from the ion generator 30 to the main body 10 through the flow path 11 together with the nanoparticles 13. Is discharged to the outside. At this time, a part of the ions 31 generated by the influence of the space charge formed by the polar ions are easily attached to the nanoparticles 13 to charge the nanoparticles. The charged nanoparticles 14 repel with ions 31 having the same polarity and spread more quickly in space under the influence of static electricity formed on the surface, and are easily moved and attached to the surface of materials having different polarities. When microorganisms are charged with different polarity, they are more easily attached to microorganisms and have effects such as sterilization and harmful gas removal.

In addition, when the ion generator 30 is installed upstream of the heater 120, ozone, which may be generated in the process of generating ions, may be generated from the material 12 on the high temperature nanoparticle generator, that is, the flow path 11. Since it is reduced to oxygen while passing through the adjacent portion, it is possible to reduce the amount of ozone emitted from the ion generator 30 to the outside.

On the other hand, when the electric power applied to the heating wire 122 or the ion generator 30 is selectively operated to generate nanoparticles and ions independently according to the desired conditions.

While the nanoparticle generating apparatus has been described as one preferred embodiment, the structure of the heating unit for directly heating the material may be variously substituted and changed without departing from the technical spirit of the present invention.

In addition, in the above, the case in which the main body 10 has a rectangular parallelepiped shape is exemplified, but the shape of the main body 10 including the heating unit 100 and the flow path 11 is applied to the nanoparticle generating device according to the present invention. Various substitutions and modifications are possible, such as cylindrical and cyclone types, depending on the product's needs.

As described above, the present invention has an effect that can be applied to small products such as home appliances by preventing the waste of unnecessary space and power in configuring the device by allowing the heating element to locally heat the material.

In addition, the present invention is equipped with an ion generator to discharge the nanoparticles with the ions and charged with the same polarity, there is an effect that can quickly diffuse the nanoparticles in the space and easily attached to contaminants such as microorganisms. . Therefore, since the nanoparticles can effectively perform functions such as sterilization and harmful gas removal, when the present invention is applied to a household appliance such as a vacuum cleaner or an air cleaner, there is an effect of keeping the indoor space healthy and comfortable.

In addition, since the present invention generates ions together with the nanoparticles, the sterilization effect by the ions can be additionally obtained, thereby enhancing the sterilization effect.

Claims (5)

The main body, a heating unit provided inside the main body to heat the material contained in the main body to evaporate to a gaseous state, and the main body to discharge the nanoparticles generated from the material to the outside of the main body In the nano-particle generating apparatus having a flow path provided to penetrate, the heating unit is provided so as to locally heat the material, and adjacent to the flow path to discharge the ions to the outside of the body with the nanoparticles Nanoparticle generator, characterized in that the ion generator is installed in the portion. According to claim 1, wherein the heating unit is a heat insulating portion having a material accommodating space formed to open the side adjacent to the flow path so that the material evaporated in a gaseous state by heating to enter the flow path, and the material accommodation space And a heater provided inside the heat insulating part so as to heat at least one surface of the material accommodated therein. The nanoparticle generating apparatus of claim 2, wherein the heater comprises an adjacent heating element to form at least one surface of the material accommodating space, and a heating element provided to generate heat. The method of claim 2, wherein the ion generator is installed on the upstream side of the heater so that ozone generated in the ion generation process can be reduced to oxygen by the high temperature heat passing through the portion adjacent to the heater on the flow path. Nanoparticle generator. The nanoparticle generator according to claim 2 or 3, wherein the ion generator is a monopolar ion generator.

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