KR20060001068A - air cleaner - Google Patents

Abstract

It is an object of the present invention to provide an air purifier capable of decomposing air containing various harmful gases to produce fresh air that is harmless to the human body.

Air purifier according to the present invention for achieving the above object, the upper and lower openings, the outer passage having a predetermined length up and down; An inner passage disposed in the outer cylinder and having an upper and lower portions opened therein; Plasma arc generating means installed in the lower side of the inner cylinder and generating a plasma arc by a current supplied from the outside; A permanent magnet installed on the lower outer surface of the inner cylinder to surround the plasma arc generating region generated by the plasma arc generating means; At least one of the upper and lower openings of the outer cylinder such that air is introduced through the lower opening of the outer cylinder to pass through the plasma arc generating means through the lower opening of the inner cylinder, and then discharged through the upper opening of the inner cylinder to the upper opening of the outer cylinder. It characterized in that it comprises a blowing fan installed in any one of the openings.

Air, clean, plasma, arc, VOC, photocatalyst, vortex generation, ozone, ion, radical

Description

Air cleaner

1 is a cross-sectional view showing the configuration of a first embodiment of an air cleaner according to the present invention.

Figure 2 is a perspective view showing an embodiment of the external appearance of the electrode portion and the projection constituting the plasma arc generating means in a first embodiment of the present invention.

3 is a plan view of an electrode part illustrating another example of the protrusion provided in the electrode part of FIG. 2;

4 is a plan view of an electrode part according to still another embodiment of the protrusion provided in the electrode part of FIG. 2;

Figure 5 is a perspective view showing another embodiment of the electrode portion constituting the plasma arc generating means in a first embodiment of the present invention.

FIG. 6 is a plan view of an electrode part illustrating another example of the protrusion provided in the electrode part of FIG. 5; FIG.

7 is a plan view of an electrode part according to still another embodiment of the protrusion provided in the electrode part of FIG. 5;

8 is a cross-sectional view showing a configuration of a second embodiment of an air purifier according to the present invention.

Fig. 9 is a sectional view showing the construction of a third embodiment of an air purifier according to the present invention.

FIG. 10 is a perspective view illustrating an appearance of an electrode unit illustrated in FIGS. 8 and 9.

<Description of the symbols for the main parts of the drawings>

100: outer cylinder

102,101: upper and lower openings

200: inner tube

300: plasma arc generating means

400: permanent magnet

500: blower fan

305 support

310: electrode portion

311: coupling part

301: air passage hole

312: corresponding surface

313: protrusion

330: electrode portion

331: coupling portion

600: first air filtering member

601: through

700: bypass means

701: inlet hole

702: passage

703: Bypass Ball

704: information board

800: second air filtering member

801: Through Hole

900: detection sensor

The present invention relates to an air purifier, and to an air purifier capable of generating fresh air that is harmless to a human body by decomposing air containing various harmful gases.

Air pollution is an important environmental concern. Despite various air pollution prevention laws, extensive and persistent air pollution threatens human health and pollutes the environment.

Currently, even in Korea, about 5% to 10% of people live in a polluted atmosphere.

Furthermore, the destruction of the ozone layer, which absorbs ultraviolet rays, can cause skin cancer, etc., due to excessive exposure to ultraviolet rays, which can harm human health. This air pollution is mainly caused by the emission of harmful gases.

Emission of volatile organic compounds (VOCs) such as benzene, toluene, ethane, ethanol, etc. is a cause of environmental damage and cancer caused by air pollution.

For example, benzene and toluene are known as cancer-causing substances, and other VOCs that can react with sulfur, carbon and oxygen can form smog in the presence of heat and sunlight.

Fluoride carbides (CFCs, PCFCs), on the other hand, are known to destroy the ozone layer that protects the earth from the ultraviolet rays of the sun, and are increasingly banned from use by the United Nations Convention.

Therefore, various methods are being developed to treat harmful gases causing the above problems.

In accordance with the above-described trend, an object of the present invention is to provide an air purifier capable of generating fresh air that is harmless to a human body by decomposing air containing various harmful gases.

Air purifier according to the present invention for achieving the above object, the upper and lower openings, the outer passage having a predetermined length up and down; An inner passage disposed in the outer cylinder and having an upper and lower portions opened therein; Plasma arc generating means installed in the lower side of the inner cylinder and generating a plasma arc by a current supplied from the outside; A permanent magnet installed on the lower outer surface of the inner cylinder to surround the plasma arc generating region generated by the plasma arc generating means; At least one of the upper and lower openings of the outer cylinder such that air is introduced through the lower opening of the outer cylinder to pass through the plasma arc generating means through the lower opening of the inner cylinder, and then discharged through the upper opening of the inner cylinder to the upper opening of the outer cylinder. It characterized in that it comprises a blowing fan installed in any one of the openings.

Hereinafter, a preferred embodiment of the air cleaner according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing a configuration of a first embodiment of an air cleaner according to the present invention, Figure 2 is an embodiment of the appearance of the electrode portion and the projections constituting the plasma arc generating means in a first embodiment of the present invention 3 is a plan view of an electrode part showing another embodiment of the protrusion part installed in the electrode part in FIG. 2, and FIG. 4 is a plan view of the electrode part showing another embodiment of the protrusion part installed in the electrode part in FIG. 2. 5 is a perspective view showing another embodiment of the electrode portion constituting the plasma arc generating means in the first embodiment of the present invention, Figure 6 is a plan view of the electrode portion showing another embodiment of the projection portion provided in the electrode portion in FIG. FIG. 7 is a plan view of an electrode part showing still another embodiment of the protrusion provided in the electrode part of FIG. 5, and FIG. 8 is a configuration of the second embodiment of the air cleaner according to the present invention. The tanaen sectional view, Figure 9 is a cross-sectional view showing the configuration of a third embodiment of an air cleaner according to the present invention, Figure 10 is a perspective view showing the external appearance of the electrode unit shown in FIGS.

1 and 8 and 9, the air cleaner according to the present invention, the outer cylinder 100, the inner cylinder 200, the plasma arc generating means 300, the permanent magnet 400, Blowing fan 500 is made.

The outer cylinder 100 has an upper and lower openings, and has a predetermined length up and down.

The inner cylinder 200 is disposed inside the outer cylinder 100, and is configured such that upper and lower portions thereof are opened.

The plasma arc generating means 300 is installed in the lower side of the inner cylinder 200 to serve to generate a plasma arc by the current supplied from the outside.

The permanent magnet 400 is installed on the lower outer surface of the inner cylinder 200 to surround the plasma arc generating region generated by the plasma arc generating means 300.

The blowing fan 500 flows air through the lower opening 101 of the outer cylinder 100 and passes through the plasma arc generating means 300 through the lower opening 201 of the inner cylinder 200. It is installed in at least one of the openings 102 and 101 of the upper and lower sides of the outer cylinder 100 so as to discharge through the upper opening 202 of the inner cylinder 200 to the upper opening 102 of the outer cylinder 100. .

So far, the basic configuration of the air purifier of the present invention has been described.

Hereinafter, the configuration of the air purifier according to the present invention will be described in more detail.

First, as shown in FIG. 1, the plasma arc generating means 300 is detachably coupled to the lower side of the inner cylinder 200 and supports a lower surface of the permanent magnet 400 to support the lower surface of the permanent magnet 400. 305 and a coupling portion 311 which is disposed at a predetermined interval apart from the inner side of the inner cylinder 200 and detachably coupled to the supporter 305, is made of a conductive material and is in a plate shape, for example. At least two or more electrode portions 310 are formed.

Here, the electrode 310 is found to be possible to implement any number of other shapes in addition to the plate.

In addition, an air passage hole 301 is formed in the support 305 to allow air to pass between the electrode portions 310, and the corresponding surfaces 312 facing each other of the electrode portions 310 are inclined at a predetermined angle. Is formed, the power is connected through the coupling portion 311 of the electrode portion 310, the material of the inner cylinder 200 is used that is insulating.

In this case, the coupling portion 311 is a protruding rod shape, and is formed to be coupled to the coupling hole 305a in the support 305.

As shown in FIG. 1, the corresponding surface 312 of the electrode part 310 is formed such that the separation distance gradually decreases from the upper side to the lower side of the electrode portion 310.

In this case, when the electrode unit 310 is two, as shown in FIGS. 1, 2, 3, and 4, the electrodes 310 are symmetrically disposed to face each other.

As shown in FIGS. 2, 3, and 4, at least one side of the remaining electrode part 310 except for the corresponding surface 312, the protrusion 313 of the conductive material coated with the photocatalyst is integrally formed. .

In the case where two electrode portions 310 are used, a current of the positive electrode (+) and the negative electrode (−) flows selectively through the pair of electrode portions 310, and then a direct current or an alternating current flows.

Meanwhile, as illustrated in FIGS. 5 to 7, when the electrode 310 is three, it is arranged at a right angle.

Here, at least one side of the remaining electrode portion 310 except for the corresponding surface 312 is integrally formed with a protrusion 313 of a conductive material coated with a photocatalyst.

And, the installation angle of the protrusion 313 can of course be carried out in various ways.

In this case, the three-phase current is used when three electrode units 310 are used.

Referring to the operation of the air purifier according to the first embodiment of the present invention described so far as follows.

First, when driving the blowing fan 500, the outside air of the outer cylinder 100 is forced through the lower opening 101, and then flows upward through the lower opening 201 of the inner cylinder 200, The upper opening 202 of the inner cylinder 200 is discharged to the outside through the upper opening 102 of the outer cylinder 100.

When the high voltage power (DC / AC) is supplied to the electrode unit 310 in the above process, the electrode unit 310 has a cathode or an anode, respectively, and the shortest section between the two electrode units 310. An arc is generated at

In the arc as described above, the arc contact point moves from the lower side to the upper side of the electrode portion 310 by the flow rate of air containing noxious gas sucked by the blowing fan 500, and thus the arc voltage between the two electrode portions 310. Will increase.

When the voltage of the arc generated between the two electrode portions 310 is greater than the voltage of the high power supplied initially, the arc disappears, and at the same time, the arc is regenerated in the shortest section between the two electrode portions 310.

As a result, the arc is generated at the lower side of the two electrode unit 310, and then repeated the process of disappearing at the top.

In addition, the arc rotates at the arc contact points of the two electrode portions 310 by the flux flow of the permanent magnet 400, thereby extending the life of the electrode portion 310.

On the other hand, according to the present invention, the plasma arc is slidably moved from the lower side to the upper side between the two electrode portions 310 by the flow rate (or pressure) of the air blown by the blowing fan 500, as shown in FIG. Likewise, it can be seen that the arc rotation speed is increased by increasing the magnetic line strength of the permanent magnet 400 to Ⅱ in the state of supplying air blowing pressure and a constant high power in which the arc slides.

That is, the arc of the arc at the arc contact point of the two electrode portion 310 by the magnetic flux flow of the permanent magnet 400 increases the rotation speed, and eventually the two electrode portion 310 is consumed uniformly.

In addition, in the present invention, as shown in FIG. 12, X-rays and X-rays do not increase the generated power of the plasma arc indefinitely even if the air blowing amount by the blowing fan 500 is increased. It can be seen that the generated power is maximized.

Here, X-rays and X-rays are currents supplied to the first two electrode portions 310, and indicate that different currents are supplied.

As a result, even if the currents supplied to the two electrode portions 310 are different from each other, the present invention can calculate the prescribed amount of air blowing, so that the maximum generated power of the plasma arc can be calculated.

Therefore, when the maximum value of the plasma arc generating power is known, the air purification efficiency can be calculated, so that the blower fan 500 can be efficiently controlled, and there is no need to supply excessive air excessively.

In addition, the present invention, as shown in Figure 13, the diameter of the inner cylinder 200 is different from the current supplied to the blowing fan 500 according to different types (㉢, ㉣), that is, the blowing fan ( As the air flow rate by 500 increases, the amount of ozone generated in the plasma arc decreases relatively.

The reason is that the amount of ozone generated at a given arc power is constant, while the increase in air flow rate dilutes the ozone concentration.

As described above, the present invention, as shown in Figures 11, 12, 13, relates to the control of the blowing fan 500 in order to optimally calculate the generated power, arc rotational speed, ozone generation amount of the plasma arc What is necessary is to control the blowing fan 500 as efficiently as possible.

Herein, the descriptions of FIGS. 11, 12, and 13 are applied to both the second and third embodiments of the present invention, which will be described later, and descriptions thereof will be omitted in the second and third embodiments to be described later.

Therefore, the air containing the noxious gas transported by the blowing fan 500 is decomposed by the arc, changed into air harmless to the human body, and discharged to the outside through the upper opening 102 of the outer cylinder 100.

On the other hand, the photocatalyst coated on the protruding portion 313, which is the remaining portion except for the corresponding surface 312 of the electrode portion 310 reacts with the low concentration of ozone and ultraviolet rays generated in the plasma arc generated between the two electrode portions 310 It generates large amounts of strong oxides, OH radicals.

As described above, OH radicals are generated to sterilize bacteria included in foreign substances in the air, and fungi such as molds can be prevented from propagating.

In addition, the low concentration of ozone generated in the plasma arc chemically combines with the odor generating material that generates the odor contained in the air to remove the odorous material.

And other substances in the air are oxidized to harmless C0 ₂ and H ₂ O.

So far, the configuration and operation of the first embodiment of the present invention have been described.

Hereinafter, description will be given of the second and third embodiments of the present invention.

On the other hand, as shown in Figures 8 and 9 of the second and third embodiments of the plasma arc generating means 300 according to the present invention, detachably coupled to the lower side of the inner cylinder 200 and the permanent A support body 305 of an insulating material supporting the lower surface of the magnet 400 and a coupling part 331 disposed inside the lower side of the inner cylinder 200 and detachably coupled to the support body 305 are provided below. And it is made of a conductive material and includes a conical electrode portion 330 formed.

In addition, an air passage hole 301 is formed in the support 300 to allow air to pass between the electrode portion 330 and the inner cylinder 200, and in the electrode portion 330 and the inner cylinder 200. Power is connected.

Here, the material of the inner cylinder 200 is a conductive one.

As illustrated in FIG. 10, a coating layer 332 coated with a photocatalyst is formed on the outer surface of the electrode unit 330 at regular intervals.

The interval between the inner surface of the inner cylinder 200 and the outer circumferential surface of the electrode portion 330 is gradually reduced from the upper side to the lower side of the electrode portion 330.

Here, as shown in FIG. 8, the inner circumferential surface of the inner cylinder 200 is formed to be straight in the vertical direction.

9, a protruding electrode 210 having an inclined surface is further formed on the entire inner circumferential surface of the inner circumferential surface of the inner cylinder 200 corresponding to the outer circumferential surface of the electrode portion 330.

A communication hole 211 penetrating in the vertical direction is formed in the protruding electrode part 210, and a vortex forming hole 221 is formed in the lower side of the protruding electrode part 210 so as to be connected to the communication hole 211. Vortex generator 220 is provided having.

Referring to the operation of the air purifier to which the plasma arc generating means 300, which is the second embodiment of the present invention configured as described above (see FIG. 8), will be described below.

First, when driving the blowing fan 500, the outside air of the outer cylinder 100 is forced through the lower opening 101, and then flows upward through the lower opening 201 of the inner cylinder 200, The upper opening 202 of the inner cylinder 200 is discharged to the outside through the upper opening 102 of the outer cylinder 100.

When the high voltage power (direct current / AC) is supplied to the inner cylinder 200 and the electrode unit 330 in the above process, the inner cylinder 200 and the electrode unit 330 bear a cathode or an anode, respectively, and the inner cylinder An arc is generated in the shortest section between the 200 and the electrode unit 330.

The arc as described above, the arc contact point is moved from the lower side of the inner cylinder 200 and the electrode portion 330 to the upper side by the flow rate of the air containing the harmful gas sucked by the blowing fan 500, the inner cylinder 200 And the arc voltage between the electrode portion 330 increases.

When the voltage of the arc generated between the inner cylinder 200 and the electrode portion 330 is greater than the voltage of the first high power supplied, the arc disappears, and at the same time, the shortest between the inner cylinder 200 and the electrode portion 330 The arc reoccurs in the section.

Therefore, the arc is generated at the lower side of the inner cylinder 200 and the electrode portion 330, and then repeated the process of disappearing at the top.

Here, the arc is the arc contact point of the inner cylinder 200 and the electrode portion 330 by the magnetic flux flow of the permanent magnet 400 is to be able to extend the life of the inner cylinder (200).

Therefore, the air containing the noxious gas transported by the blowing fan 500 is decomposed by the arc, changed into air harmless to the human body, and discharged to the outside through the upper opening 102 of the outer cylinder 100.

On the other hand, the coating layer 332 coated with a photocatalyst on the electrode portion 330 is a large amount of strong oxides by reacting with a low concentration of ozone and ultraviolet rays generated in the plasma arc generated between the inner cylinder 200 and the electrode portion 330. Generates OH radicals.

As described above, OH radicals are generated to sterilize bacteria included in foreign substances in the air, and fungi such as molds can be prevented from propagating.

In addition, the low concentration of ozone generated in the plasma arc chemically combines with the odor generating material that generates the odor contained in the air to remove the odorous material.

And other substances in the air are oxidized to harmless C0 ₂ and H ₂ O.

On the other hand, since the coating layer 332 is coated on the outer surface of the electrode portion 330 at a predetermined interval, for example in the vertical direction, the plasma arc is not generated in the coating layer 332, the portion without the coating layer 332 Since the arc is generated only in the end, the arc will cause a vortex while sliding in the upper direction of the electrode portion 330.

On the other hand, the operation of the second embodiment of the present invention has been described so far.

Hereinafter, the operation of the third embodiment of the present invention will be described.

First, when driving the blowing fan 500, the outside air of the outer cylinder 100 is forced through the lower opening 101, and then flows upward through the lower opening 201 of the inner cylinder 200, The upper opening 202 of the inner cylinder 200 is discharged to the outside through the upper opening 102 of the outer cylinder 100.

When the high voltage power (DC / AC) is supplied to the protruding electrode 210 and the electrode 330 in the above process, the protruding electrode 210 and the electrode 330 respectively form a cathode or an anode. The arc is generated in the shortest section between the protruding electrode 210 and the electrode 330.

The arc as described above, the arc contact point is moved upward from the lower side of the protruding electrode 210 and the electrode 330 by the flow rate of the air containing the harmful gas sucked by the blowing fan 500 protruding electrode An arc voltage between the unit 210 and the electrode unit 330 increases.

When the voltage of the arc generated between the protruding electrode 210 and the electrode 330 is greater than the voltage of the first high power supplied, the arc disappears, and at the same time, the protruding electrode 210 and the electrode 330 The arc reoccurs in the shortest interval between).

Therefore, the arc is generated at the lower side of the protruding electrode 210 and the electrode 330, and then repeated the process of disappearing at the top.

Here, the arc is the arc contact point of the protruding electrode 210 and the electrode 330 by the magnetic flux flow of the permanent magnet 400 is rotated to extend the life of the inner cylinder 200.

Therefore, the air containing the noxious gas transported by the blowing fan 500 is decomposed by the arc, changed into air harmless to the human body, and discharged to the outside through the upper opening 102 of the outer cylinder 100.

Meanwhile, the coating layer 332 coated with the photocatalyst on the electrode part 330 reacts with a low concentration of ozone and ultraviolet rays generated in the plasma arc generated between the protruding electrode part and the electrode part 330 to generate a large amount of strong oxide. Generates OH radicals.

As described above, OH radicals are generated to sterilize bacteria included in foreign substances in the air, and fungi such as molds can be prevented from propagating.

In addition, the low concentration of ozone generated in the plasma arc chemically combines with the odor generating material that generates the odor contained in the air to remove the odorous material.

And other substances in the air are oxidized to harmless C0 ₂ and H ₂ O.

On the other hand, since the coating layer 332 is coated on the outer surface of the electrode portion 330 at a predetermined interval, for example in the vertical direction, the plasma arc is not generated in the coating layer 332, the portion without the coating layer 332 Since the arc is generated only in the end, the arc will cause a vortex while sliding in the upper direction of the electrode portion 330.

On the other hand, in the air purifier of the present invention described so far, the inside of the inner cylinder 200 corresponding to the upper side of the plasma arc generating means 300 is formed through a plurality of through-holes 601 of a predetermined size and a photocatalyst The coated first air filtering member 600 is installed.

Here, the first air filtering member 600 is preferably formed in a honeycomb shape.

By installing the first air filtering member 600 as described above, some of the air that is not ionized in the air passes through the plasma arc generating means 300, so that the air can be mixed with the ionized air. will be.

That is, since the first air filtering member 600 is coated with a photocatalyst, the photocatalyst is catalytically reacted with ultraviolet rays generated from the arc generated by the plasma arc generating means 300 to chemically react with oxygen to form an OH radical ( to generate radicals.

As a result, the amount of OH radicals is further increased to sterilize and purify foreign substances in the air.

On the other hand, the present invention further comprises a bypass means 700 for bypassing air to the inner cylinder 200 between the plasma arc generating means 300 and the first air filtering member 600 in the above configuration. It is provided.

The bypass means 700 forms an inlet hole 701 in the lateral direction in the inner cylinder 200 between the plasma arc generating means 300 and the first air filtering member 600, and the outer cylinder 100. Bypass hole 703 to the support 300 so that air is introduced into the inlet hole 701 through the passage 702 between the inner cylinder 200 and the outer cylinder 100 through the lower opening 101 of And guide plate 704 for blocking the air passing through the passage 703 between the inner cylinder 200 and the outer cylinder 100 to be introduced into the upper side and guiding the flow into the inlet hole 701. Adjacent to the first air filtering member 600 is provided between the inner cylinder 200 and the outer cylinder (100).

As described above, by providing the bypass means 700, when the air blown by the blowing fan 500 is supplied in excess of the prescribed purification amount to be purified while passing through the plasma arc generating means 300, the plasma arc generation By bypassing the air into the inner cylinder 200 between the means 300 and the first air filtering member 600, the ionization by the first filtering means 600 is increased to increase the amount of OH radicals generated. To make it possible.

On the other hand, in the present invention configured as described above, the upper opening 202 of the inner cylinder 200 is provided with a second air filtering member 800 of ceramic material having a plurality of through holes 801.

The material of the second air filtering member 800 is preferably La ₂ CuO ₄ .

By further comprising a second air filtering member 800 made of a ceramic material as described above, it is possible to filter the harmful substances of N0 _x and fine particles contained in the air, or to filter the nitrogen oxide and hydrocarbon-containing gas.

In addition, the present invention is further provided with a sensing sensor 900 for sensing the pollution of the air in the upper opening 102 of the outer cylinder 100 in the configuration as described above to sense the degree of contamination of the air actually purified and discharged It is designed to allow the user to know whether the device is faulty, the degree of abnormality and its performance.

In the configuration of the present invention described above, the material of the electrode 310 is preferably used any one of copper, iron, titanium, copper alloy, iron alloy, titanium alloy.

In the present invention, the material of the electrode 300 and the inner cylinder 200 is preferably used any one of copper, iron, titanium, copper alloy, titanium alloy, iron alloy.

In addition, the material of the permanent magnet 400 of the present invention is preferably any one of ferrite (alrite), alnico (nenico), neodymium (neodymium).

In addition, the strength of the permanent magnet 400 is preferably between 100 gauss and 500 gauss.

The photocatalyst of the present invention is preferably one of TiO ₂ , MnO ₂ , and NiO.

On the other hand, the present invention in the configuration as described above, by further comprising an ozone generator 510 in which the amount of ozone is generated in the lower opening 101 side of the outer cylinder 100, it can be configured to separately supply the ozone to control Of course.

As described above, according to the air purifier according to the present invention, by decomposing the air containing various harmful gases can generate fresh air harmless to the human body, generating a separate ultraviolet rays as a means for generating OH radicals (radical) You do not need to use the lamp.

Claims (26)

An outer cylinder 100 having an upper and a lower opening and having a predetermined length up and down; An inner cylinder 200 disposed in the outer cylinder 100 and having an upper and lower portions opened therein; A plasma arc generating means (300) installed inside the lower side of the inner cylinder (200) to generate a plasma arc by a current supplied from the outside; A permanent magnet 400 installed on the lower outer surface of the inner cylinder 100 so as to surround the plasma arc generating region generated by the plasma arc generating means 300; Air is introduced through the lower opening 101 of the outer cylinder 100 to pass through the plasma arc generating means 300 through the lower opening 201 of the inner cylinder 200 to open the upper opening of the inner cylinder 200 ( A blowing fan 500 installed in at least one of the upper and lower openings 102 and 101 of the outer cylinder 100 so as to be discharged through the 202 and the upper opening 102 of the outer cylinder 100. Air purifier, characterized in that made. The method of claim 1, The plasma arc generating means 300, A support 305 of an insulating material that is detachably coupled to a lower side of the inner cylinder 200 and supports a lower surface of the permanent magnet 400; It is provided in the lower side of the inner cylinder 200 spaced apart at a predetermined interval and has a coupling portion 311 detachably coupled to the support 305, made of a conductive material and at least two or more electrode portions 310 ), An air passage hole 301 is formed in the support 300 to allow air to pass between the electrode portions 310. The corresponding surfaces 312 of the electrode portions 310 facing each other are formed to be inclined at a predetermined angle, A power source is connected to the electrode 310, Air purifier, characterized in that the material of the inner cylinder 200 is insulating. The air purifier of claim 2, wherein the corresponding surface (312) gradually decreases the separation distance from the upper side to the lower side of the electrode portion (310). The air cleaner of claim 3, wherein the two electrode parts are arranged symmetrically to face each other. 5. The air cleaner of claim 4, wherein protrusions (313) made of a conductive material coated with a photocatalyst are integrally formed on at least one side of the electrode (310) except for the corresponding surface (312). 4. The air cleaner of claim 3, wherein the three electrode parts are disposed at a right angle. 7. The air cleaner of claim 6, wherein protrusions (313) of a conductive material coated with a photocatalyst are integrally formed on at least one side of the electrode (310) except for the corresponding surface (312). The method of claim 1, The plasma arc generating means 300, A support 305 of an insulating material that is detachably coupled to a lower side of the inner cylinder 200 and supports a lower surface of the permanent magnet 400; It is disposed in the lower side of the inner cylinder 200, the lower portion is provided with a coupling portion 331 detachably coupled to the support 305, made of a conductive material and formed of a conical shape electrode portion 330 Include, An air passage hole 301 is formed in the support 300 to allow air to pass between the electrode portion 330 and the inner cylinder 200. Power is connected to the electrode unit 330 and the inner cylinder 200, Air purifier, characterized in that the material of the inner cylinder 200 is conductive. The air cleaner of claim 8, wherein a photocatalyst is coated at regular intervals on an outer surface of the electrode unit (330). 10. The air cleaner of claim 9, wherein an interval between an inner surface of the inner cylinder and an outer circumferential surface of the electrode portion 330 is gradually reduced from an upper side to a lower side of the electrode portion 330. The air cleaner of claim 10, wherein the inner circumferential surface of the inner cylinder (200) is formed in a straight line in the vertical direction. 11. The air cleaner of claim 10, wherein a protruding electrode portion 210 having an inclined surface is further formed on the entire inner circumferential surface of the inner circumferential surface of the inner cylinder 200 corresponding to the outer circumferential surface of the electrode portion 330. The method of claim 12, The protruding electrode portion 210 is formed with a communication hole 211 penetrating in the vertical direction, The air cleaner of the lower side of the protruding electrode 210 is provided with a vortex generator 220 having a vortex forming hole 221 therein to be connected to the communication hole (211). The method according to any one of claims 1 to 13, Inside the inner cylinder 200 corresponding to the upper side of the plasma arc generating means 300, a plurality of through-holes 601 of a predetermined size are formed to penetrate up and down, and a first air filtration member 600 coated with a photocatalyst is installed. Air purifier, characterized in that. 15. The air cleaner of claim 14, wherein the first air filtering member is formed in a honeycomb shape. The method according to any one of claims 2 to 15, And a bypass means (700) for bypassing air to the inner cylinder (200) between the plasma arc generating means (300) and the first air filtering member (600). The method of claim 16, The bypass means 700, Inlet hole 701 is formed in the lateral direction in the inner cylinder 200 between the plasma arc generating means 300 and the first air filtering member 600, Through the lower opening 101 of the outer cylinder 100, the air flows into the support 300 so that air flows into the inlet hole 701 through a passage 702 between the inner cylinder 200 and the outer cylinder 100. Forms a pass hole (703), The first air guides the guide plate 704 to block the air passing through the passage 703 between the inner cylinder 200 and the outer cylinder 100 to the upper side and to guide the inlet hole 701 to enter the upper side. Adjacent to the filtering member 600, the air purifier, characterized in that made by installing between the inner cylinder (200) and the outer cylinder (100). 18. The method of claim 17, wherein the upper opening 202 of the inner cylinder 200 is provided with a second air filtration member 800 is provided with a plurality of through holes 801 to filter the gas containing the oxidized oxide and carbides air cleaner. 19. The air cleaner of claim 18, further comprising a sensing sensor (900) configured to sense a degree of contamination of the air in the upper opening (102) of the outer cylinder (100). 8. The air cleaner of claim 2 or 7, wherein the electrode portion 310 is made of copper, iron, titanium, copper alloy, iron alloy, or titanium alloy. 11. The method of claim 8 or 10, wherein the material of the electrode portion 300 and the inner cylinder 200 is air, characterized in that any one of copper, iron, titanium, copper alloy, iron alloy, titanium alloy Purifier. The air cleaner of claim 1, wherein the permanent magnet is made of one of ferrite, alnico, and neodymium. 23. The air cleaner of claim 1 or 22, wherein the strength of the permanent magnets is between 400 gauss and 500 gauss. The air cleaner of claim 11, wherein the photocatalyst is any one of TiO ₂ , MnO ₂ , and NiO. 19. The air cleaner of claim 18, wherein the second air filtering member (800) is made of La ₂ CuO ₄ . The method of claim 18, An air cleaner, characterized in that the ozone generator (510) is further provided on the lower opening 101 side of the outer cylinder (100).

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