KR20230016943A - Diffuser type dbd plasma module and odor removal device using the same - Google Patents

Abstract

A diffuser type DBD plasma module is disclosed. The diffuser type DBD plasma module comprises: a chamber including a bottom portion, a first side portion and a second side portion disposed to be perpendicular to two parallel sides of the bottom portion, and a third side portion and a fourth side portion disposed between the first side portion and the second side portion to be perpendicular to the other two parallel sides of the bottom portion; a core electrode having the form of a bar or a rod, and supported between the first side portion and the second side portion to be spaced a predetermined distance from the inner surface of the bottom portion; a plate-shaped opposite electrode provided on an inner side of the bottom portion, and facing the core electrode to be spaced a predetermined distance apart from the core electrode; a dielectric disposed between the core electrode and the opposite electrode; at least one gas inlet disposed in one of the third side portion and the fourth side portion to inject gas between the core electrode and the opposite electrode; and a slit provided in the remaining one of the third side portion and the fourth side portion, extending to parallel to the core electrode, and for discharging ozone and active species after plasma is generated between the core electrode and the opposite electrode. A voltage is applied between the core electrode and the opposite electrode. Therefore, the diffuser type DBD plasma module can diffuse ozone and active radicals to release the ozone and active radicals.

Description

Diffuser type DBD plasma module and odor removal device using the same {DIFFUSER TYPE DBD PLASMA MODULE AND ODOR REMOVAL DEVICE USING THE SAME}

The present invention relates to a diffuser-type DBD plasma module and an odor removal device using the same, and more particularly, to a diffuser-type DBD plasma module that emits ozone and active radicals and removes odor through the emitted ozone and active radicals, and It relates to an odor removal device using the same.

Odor gas, which is widely generated throughout the industry, is a major cause of air pollution along with VOCs and nitrogen oxides.

Odor substances are caused by various complex compounds for each source, such as oil refineries, chemical plants, sewage treatment plants, manure and livestock wastewater treatment plants, landfills, etc., causing odors. The smell of rotting vegetables and amines cause peculiar smells such as the smell of fish, and most of them are high concentration harmful gases including moisture dust. In particular, harmful gases generated from incinerators, manure treatment, chemical factories and composting facilities are emerging as a serious circular problem.

Accordingly, there is an increasing demand for devices for removing odorous gases discharged from various odor-producing facilities.

Therefore, the problem to be solved by the present invention is a diffuser-type DBD that can diffuse and release ozone and active radicals widely, generate a large amount of ozone by continuously cooling the core electrode, and facilitate disassembly and installation of the module. It is to provide a plasma module.

Another object of the present invention is to provide a malodor removal device capable of efficiently decomposing malodorous components in a malodorous gas and improving the decomposition performance of malodorous components.

A diffuser-type DBD plasma module according to an embodiment of the present invention includes a bottom surface, a first side part and a second side part disposed perpendicular to two parallel sides of the bottom part, and two other two parallel sides of the bottom part. a chamber including a third side part and a fourth side part disposed between the first side part and the second side part and perpendicular to the side of the dog; a core electrode in the form of a rod or rod supported between the first and second side surfaces to be spaced apart from an inner surface of the bottom surface by a predetermined distance; a counter electrode in the form of a plate facing the core electrode at a predetermined distance from the inside of the bottom portion; a dielectric disposed between the core electrode and the counter electrode; at least one gas inlet disposed on one of the third and fourth side surfaces to inject gas between the core electrode and the counter electrode; and a slit extending in parallel with the core electrode on the other one of the third side portion and the fourth side portion and discharging ozone and active species after plasma is generated between the core electrode and the counter electrode, wherein the core electrode And it is characterized in that a voltage is applied between the opposite electrode.

In one embodiment, one end of the core electrode is exposed to the outside of the first side part or the second side part, and the plasma module includes a voltage application unit connected to the opposite electrode through the bottom surface part, and the voltage A voltage may be applied between the applying unit and the exposed end of the core electrode.

In one embodiment, an insulator disposed between an inner surface of the bottom portion and the opposite electrode may be further included.

In one embodiment, the core electrode is provided in the form of a tube having a hollow inside, and a cooling fluid may be injected into the hollow of the core electrode. The cooling fluid may be a gas.

In one embodiment, the gas may be configured to be recovered into the chamber 100 .

In one embodiment, the dielectric may be provided in a tube shape and disposed to surround the core electrode.

In one embodiment, the dielectric may be an alumina tube having an aluminum oxide layer formed on its surface.

In one embodiment, the chamber may include a first chamber member composed of the bottom surface portion, the first side portion, and the second side portion; It is provided in a rectangular frame shape having a size corresponding to the size of the inner surface of the bottom surface portion between the inner surfaces of the first side portion and the second side portion, and is inserted between the first side portion and the second side portion to form the first chamber member and the second side portion. a coupled second chamber member; And provided in the form of a plate having a size corresponding to the size of the bottom surface portion, and covering the first chamber member and the second chamber member so as to be placed on tops of the first side portion and the second side portion to form an inner side of the rectangular frame shape. A third chamber member for sealing may be included, and the core electrode and the counter electrode may be disposed inside the rectangular frame of the second chamber member.

In one embodiment, the second chamber member may include: a first rim and a second rim parallel to each other and having a length corresponding to the distance between the first side portion and the second side portion; And a third rim and a fourth rim connected between the first rim and the second rim in the direction of both ends of the first rim and the second rim and forming the third side portion and the fourth side portion, , The slit may be disposed on the third rim forming the third side portion, and a plurality of gas inlets may be disposed on the fourth rim forming the fourth side portion.

In one embodiment, a hose connector may be coupled to the gas inlet.

In one embodiment, the bottom surface portion of the first chamber member is provided with a linear opening extending from below the counter electrode to a length equal to or less than the length of the counter electrode, and the voltage applying unit is inserted into the linear opening to form the opposite electrode. may be connected to an electrode.

In one embodiment, the separation distance between the core electrode 210 and the counter electrode may be arranged at intervals within a range of 1 to 2 mm.

An odor removal device using a DBD plasma module according to an embodiment of the present invention includes a duct including an inlet through which a malodorous gas flows and an outlet disposed opposite the inlet; and the plasma module of claim 1 inserted into the duct to be close to the inlet, wherein the plasma module can emit ozone and active species by plasma into the duct.

In one embodiment, the duct may further include a plurality of baffles arranged at regular intervals at the rear end of the plasma module and alternately fixed to opposite surfaces of the inner surface of the duct.

In one embodiment, a catalyst disposed at the rear end of the plurality of baffles and fixed around the inner surface of the duct may be further included.

In one embodiment, a plurality of plasma module insertion slots through which the plasma module is inserted into the duct may be arranged on one surface of the duct along the longitudinal direction of the duct.

In one embodiment, activated carbon may be coupled to one surface of the catalyst.

According to the present invention, the diffuser-type DBD plasma module can widely diffuse and emit ozone and active radicals, continuously cools the core electrode 210 to generate a large amount of ozone, and has a number of chambers capable of assembling and disassembling. There is an advantage in that the disassembly and installation of the module is easy because the module is composed of members, and the odor removal device using the diffuser type DBD plasma module efficiently decomposes odor components in the odor-containing gas, and the performance of decomposition of odor components can be increased. There is an advantage to being

1 is an exploded perspective view for explaining a diffuser-type DBD plasma module according to an embodiment of the present invention.
FIG. 2 is a perspective view illustrating a state in which the first chamber member and the second chamber member shown in FIG. 1 are coupled.
3 is a cross-sectional view of a diffuser-type DBD plasma module according to an embodiment of the present invention.
FIG. 4 shows graphs obtained by measuring current amplitude according to a separation distance between a core electrode and a counter electrode while varying a gas injection amount in a diffuser-type DBD plasma module according to an embodiment of the present invention.
5 shows graphs comparing ozone concentration according to a separation distance between a core electrode and a counter electrode while varying a gas injection amount in a diffuser-type DBD plasma module according to an embodiment of the present invention.
6 is a perspective view illustrating an odor removal device according to an embodiment of the present invention.

Hereinafter, a diffuser-type DBD plasma module and an odor removal device using the same according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Since the present invention can have various changes and various forms, specific embodiments will be illustrated in the drawings and described in detail in the text. However, it should be understood that this is not intended to limit the present invention to the specific disclosed form, and includes all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. Like reference numerals have been used for like elements throughout the description of each figure. In the accompanying drawings, the dimensions of the structures are shown enlarged than actual for clarity of the present invention.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as "comprise" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, they should not be interpreted in an ideal or excessively formal meaning. don't

1 is an exploded perspective view for explaining a diffuser-type DBD plasma module according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a state in which a first chamber member and a second chamber member shown in FIG. 1 are coupled. 3 is a cross-sectional view of a diffuser-type DBD plasma module according to an embodiment of the present invention.

1 to 3, the diffuser type DBD plasma module according to an embodiment of the present invention includes a chamber 100, a core electrode 210, a counter electrode 220, a dielectric 300, a gas inlet 400 ), a slit 500 may be included.

The chamber 100 includes a bottom surface part 101, a first side part 102 and a second side part 103 disposed perpendicular to two sides parallel to each other of the bottom surface part 101, and the bottom surface part 101. It may include a third side part 104 and a fourth side part 105 perpendicular to the other two sides parallel to each other and disposed between the first side part 102 and the second side part 103 .

The core electrode 210 may be provided in the form of a rod or a rod, and both ends may be supported between the first side portion 102 and the second side portion 103 so as to be spaced apart from the inner surface of the bottom surface portion 101 by a predetermined distance. can For example, the core electrode 210 may pass through the second side portion 103 and be supported by the second side portion 103 .

The counter electrode 220 is provided in a plate shape and faces the core electrode 210 at a predetermined distance from the inside of the bottom surface portion 101 .

The dielectric 300 may be disposed between the core electrode 210 and the counter electrode 220 . For example, the dielectric 300 may be provided in a tube shape and disposed to surround the core electrode 210 . In this case, the dielectric 300 may be an alumina tube on which an aluminum oxide layer is formed.

The gas inlet 400 may be at least one, and is disposed on any one of the third side portion 104 and the fourth side portion 105, for example, the fourth side portion 105, and the core electrode ( 210) and the counter electrode 220, gas may be injected. For example, the number of gas inlets 400 may be four. The injected gas may be a discharge gas for generating plasma, and may be, for example, air or oxygen.

The slit 500 extends in parallel with the core electrode 210 on the other one of the third side portion 104 and the fourth side portion 105, for example, the third side portion 104, and the core After plasma is generated between the electrode 210 and the counter electrode 220, ozone and active species may be discharged.

To generate plasma, gas may be injected into the chamber 100 through the gas inlet 400, and a voltage may be applied between the core electrode 210 and the counter electrode 220.

Meanwhile, the chamber 100 may be configured in a form in which the first chamber member 110, the second chamber member 120, and the third chamber member 130 are assembled.

The first chamber member 110 may include the bottom portion 101, the first side portion 102, and the second side portion 103, and may have a U-shaped cross section in the longitudinal direction.

The second chamber member 120 may be provided in a rectangular frame shape having a size corresponding to the size of the inner surface of the bottom surface portion 101 between the inner surfaces of the first side portion 102 and the second side portion 103, respectively. The height of the second chamber member 120 may have a height corresponding to heights from the inner surface of the bottom surface portion 101 to the upper ends of the first side portion 102 and the second side portion 103, and the first It may be inserted between the side portion 102 and the second side portion 103 and coupled to the first chamber member 110 .

Specifically, the second chamber member 120 has a length corresponding to the distance between the first side portion 102 and the second side portion 103, and the first rim 121 and the second rim 122 parallel to each other. ); And it is connected between the first rim 121 and the second rim 122 in the direction of both ends of the first rim 121 and the second rim 122, and the third side portion 104 and the It includes a third rim 123 and a fourth rim 124 forming the 4 side portions 105, and the first to fourth rims 124 are disposed at right angles to each other to form a square frame structure.

When the second chamber member 120 is inserted into the first chamber member 110, the third rim 123 and the fourth rim 124 form the first side portion 102 and the second side portion ( 103) It is closely inserted into each inner surface, and the distance between the first rim 121 and the second rim 122 corresponds to the width of the bottom surface portion 101, and the second chamber member 120 may be inserted into the first chamber member 110 without protruding from the first chamber member 110 .

In addition, the slit 500 may be disposed on the third rim 123 of the second chamber member 120, and a plurality of gas inlets 400 may be disposed on the fourth rim 124.

On the other hand, the bottom surface portion 101 of the first chamber member 110 is provided with a linear opening 111 extending below the counter electrode 220 to a length equal to or less than the length of the counter electrode 220, A voltage application unit 700 inserted into the linear opening 111 and connected to the counter electrode 220 may be provided. In this case, a voltage may be applied between the exposed end of the core electrode 210 and the voltage applying unit 700 . For example, the voltage applying unit 700 may be grounded.

Meanwhile, a hose connector 810 may be coupled to each gas inlet 400 . The shape of the hose connector 810 is not particularly limited, and may be, for example, a one-touch fitting in the form of a figure, and the one-touch fitting has one end screwed to the gas inlet 400. can be provided with A gas injection hose 820 for gas injection may be connected to the hose connector 810 .

Meanwhile, the core electrode 210 may have a tube shape having a hollow inside. In this case, a cooling fluid may be injected into the hollow of the core electrode 210 . For injection of the cooling fluid, one end of the core electrode 210 may be exposed to the outside of the first side portion 102 or the second side portion 103, for example, the second side portion 103, , The fluid injection hose 830 may be connected to one end thereof exposed. At this time, the fluid may be a gas, for example, a refrigerant gas. The refrigerant gas may cool the core electrode 210 heated by plasma while passing through the inside of the core electrode 210 .

Also, the fluid that has passed through the core electrode 210 may be recovered into the chamber 100 . For example, the other end of the opposite end of the exposed end of the core electrode 210 may be located inside the chamber 100 and opened, and the refrigerant gas may pass through the other end in the chamber 100 to the chamber 100. ) and can be recovered as a gas for plasma discharge in the chamber 100.

Meanwhile, an insulator 600 may be disposed between the inner surface of the bottom surface portion 101 of the chamber 100 and the counter electrode 220 . The insulator 600 may insulate between the counter electrode 220 and the bottom surface portion 101 of the chamber 100 when the chamber 100 is made of metal. In this case, the voltage application unit 700 may pass through the insulator 600 and be connected to the counter electrode 220 . For example, the insulator 600 may be a quartz material.

In the diffuser-type DBD plasma module according to an embodiment of the present invention, gas for plasma discharge is injected into the chamber 100 through the gas inlet 400, and the core electrode 210 and the counter electrode When a voltage is applied between the core electrode 220 and the counter electrode 220, a plasma discharge occurs between the core electrode 210 and the counter electrode 220 to generate plasma, and ozone and active radicals can be generated by the plasma.

At this time, since the core electrode 210 is parallel to the long axis direction of the chamber 100 as shown in FIG. 1, the plasma is distributed in the longitudinal direction of the chamber 100 and widely distributed inside the chamber 100. After the gas contacts the plasma, ozone and active radicals can be generated over a wide area, and the ozone and active radicals are discharged from the inside of the chamber 100 to the outside of the chamber 100 through the slit 500. can

The diffuser-type DBD plasma module according to an embodiment of the present invention can widely diffuse and emit ozone and active radicals, continuously cools the core electrode 210 to generate a large amount of ozone, and the chamber 100 ) is composed of a plurality of members 110, 120, and 130 that can be assembled and disassembled, so that the disassembly and installation of the module is easy.

Meanwhile, the distance between the core electrode 210 and the counter electrode 220 of the diffuser-type DBD plasma module according to an embodiment of the present invention may be 1 to 2 mm. Preferably, it may have a gap of 1.5 mm.

FIG. 4 shows graphs measuring the amplitude of current according to the separation distance between the core electrode and the counter electrode while varying the gas injection amount in a diffuser-type DBD plasma module according to an embodiment of the present invention. FIG. In the diffuser-type DBD plasma module according to the embodiment, graphs comparing ozone concentration according to the separation distance between the core electrode and the counter electrode while varying the gas injection amount are shown.

As shown in FIG. 4, when the core electrode 210 and the counter electrode 220 are 1.5 mm, a more stable current change is exhibited than when they are set to 1 mm and 2 mm, and it can be confirmed that the amplitude of the current is stable at 30 mA, Accordingly, it was confirmed that it is preferable to apply and use power in a range representing a current of 30 mA.

As shown in FIG. 5, when the gas injection amount is different and the cooling gas injection for cooling the core electrode 210 is made under the same conditions at each gas injection amount, the core electrode 210 and the counter electrode 220 When is 1.5 mm, it can be confirmed that the ozone concentration is increased compared to the case of 1 mm and 2 mm.

An odor removal device may be implemented using the diffuser-type DBD plasma module according to an embodiment of the present invention. 6 is a perspective view for explaining an odor removal device according to an embodiment of the present invention.

Referring to FIG. 6 , an odor removal device according to an embodiment of the present invention may include a duct 2000, a plasma module 1000, a plurality of baffles 3000, and a catalyst 4000.

The duct 2000 may include an inlet 2001 through which odor-containing gas flows, and an outlet 2002 disposed on the opposite side of the inlet 2001 . The duct 2000 may have a square cross-sectional shape.

The plasma module 1000 may be inserted into the duct 2000 so as to be close to the inlet 2001 . Since the plasma module 1000 has been described in detail above, a detailed description thereof will be omitted.

To insert the plasma module 1000 into the duct 2000, a plasma module insertion slot (not shown) may be provided on one surface of the duct 2000, for example, on an upper surface of the duct 2000.

The plurality of baffles 3000 are arranged at regular intervals at the rear end of the plasma module 1000 inside the duct 2000 and are alternately fixed to opposite surfaces of the inner surface of the duct 2000 . The plurality of baffles 3000 allow the malodorous gas passing through the duct 2000 to move in a zigzag pattern, thereby delaying the discharge of the malodorous gas, thereby increasing the reaction time with ozone and active radicals.

The catalyst 4000 may be disposed at the rear end of the plurality of baffles 3000, but the entire edge may be fixed to the inner surface of the duct 2000. That is, the catalyst 4000 may be fixed without being separated from the inner surface of the duct 2000 . The catalyst 4000 may decompose odor components of odor-containing gas. The type of catalyst 4000 is not particularly limited, and may be, for example, an oxygen catalyst capable of decomposing odor components by reacting with oxygen and moisture in the air.

Meanwhile, activated carbon (not shown) may be coupled to one side of the catalyst 4000, for example, one side facing the inlet 2001 of the duct 2000. The activated carbon may adsorb odor components of the odor-containing gas.

In the odor removal device using the DBD plasma module according to an embodiment of the present invention, the plasma modules 1000 mounted on the duct 2000 emit ozone and active radicals into the duct 2000. Accordingly, the malodorous gas introduced from the inlet 2001 of the duct 2000 may be primarily decomposed of odorous components by the ozone and active radicals at a location close to the inlet 2001 of the duct 2000.

Subsequently, the odor-containing gas passes between the baffles 3000 while moving to the rear end of the plasma module 1000. At this time, the movement speed of the odor-containing gas is delayed by the baffles 3000, and thus ozone and active gas are activated. The reaction time with radicals is increased so that odor components are decomposed more efficiently.

Subsequently, the odor-containing gas moves to the rear end of the baffles 3000 and comes into contact with the activated carbon and the catalyst 4000 . For example, the odor component may be adsorbed while first contacting activated carbon, and then the odor component may be further decomposed by contact with the catalyst 4000 .

Through these processes, the gas from which the odor-containing gas has been removed may be discharged through the outlet 2002 of the duct 2000 .

When the malodor removal device according to an embodiment of the present invention is used, there is an advantage in that malodorous components in a malodorous gas can be efficiently decomposed and performance of decomposition of malodorous components can be increased.

The description of the presented embodiments is provided to enable any person skilled in the art to use or practice the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the scope of the present invention. Thus, the present invention is not to be limited to the embodiments presented herein, but is to be construed in the widest scope consistent with the principles and novel features presented herein.

Claims (18)

A bottom surface portion 101, a first side surface portion 102 and a second side surface portion 103 disposed perpendicular to two sides parallel to each other of the bottom surface portion 101, and two other sides parallel to each other of the bottom surface portion 101. a chamber (100) including a third side portion (104) and a fourth side portion (105) disposed between the first side portion (102) and the second side portion (103) and perpendicular to the side of the dog;
a core electrode 210 in the form of a rod or rod supported between the first side part 102 and the second side part 103 at a predetermined distance from the inner surface of the bottom surface part 101;
a counter electrode 220 in the form of a plate facing the core electrode 210 at a predetermined distance from the inside of the bottom surface portion 101;
a dielectric 300 disposed between the core electrode 210 and the counter electrode 220;
at least one gas inlet 400 disposed on any one of the third side part 104 and the fourth side part 105 to inject gas between the core electrode 210 and the counter electrode 220; and
The other one of the third side part 104 and the fourth side part 105 extends in parallel with the core electrode 210, and ozone is generated between the core electrode 210 and the counter electrode 220 after plasma is generated. And a slit 500 for discharging active species,
A voltage is applied between the core electrode 210 and the counter electrode 220,
Diffuser type DBD plasma module. According to claim 1,
One end of the core electrode 210 is exposed to the outside of the first side part 102 or the second side part 103,
The plasma module includes a voltage application unit 700 that penetrates the bottom surface portion 101 and is connected to the counter electrode 220,
A voltage is applied between the voltage applying unit 700 and the exposed end of the core electrode 210,
Diffuser type DBD plasma module. According to claim 1,
Further comprising an insulator 600 disposed between the inner surface of the bottom surface portion 101 and the counter electrode 220,
Diffuser type DBD plasma module. According to claim 1,
The core electrode 210 is provided in the form of a hollow tube,
Cooling fluid is injected into the hollow of the core electrode 210,
Diffuser type plasma module. According to claim 4,
The cooling fluid is a gas,
Diffuser type plasma module. According to claim 5,
The gas is configured to be recovered into the chamber 100,
Diffuser type plasma module. According to claim 1,
The dielectric 300 is provided in a tube shape and disposed to surround the core electrode 210,
Diffuser type plasma module. According to claim 7,
The dielectric 300 is an alumina tube having an aluminum oxide layer formed on the surface,
Diffuser type DBD plasma module. According to claim 2,
The chamber 100,
a first chamber member 110 composed of the bottom surface portion 101, the first side portion 102, and the second side portion 103;
It is provided in a square frame shape having a size corresponding to the size of the inner surface of the bottom surface portion 101 between the inner surfaces of the first side portion 102 and the second side portion 103, respectively, and the first side portion 102 and the first side portion 102 a second chamber member 120 inserted between the two side parts 103 and coupled to the first chamber member 110; and
The first chamber member 110 and the first chamber member 110 are provided in the form of a plate having a size corresponding to the size of the bottom surface portion 101 and placed on top of the first side portion 102 and the second side portion 103. It includes a third chamber member 130 covering the second chamber member 120 and sealing the inside of the square frame shape,
The core electrode 210 and the counter electrode 220 are disposed inside the square frame shape of the second chamber member 120,
Diffuser type DBD plasma module. According to claim 9,
The second chamber member 120,
a first rim 121 and a second rim 122 parallel to each other and having a length corresponding to the distance between the first side portion 102 and the second side portion 103; and
It is connected between the first rim 121 and the second rim 122 in the direction of both ends of the first rim 121 and the second rim 122, and the third side portion 104 and the fourth It includes a third rim 123 and a fourth rim 124 forming the side portion 105,
The slit 500 is disposed on the third edge 123 forming the third side portion 104,
The gas inlet 400 is disposed in plurality on the fourth rim 124 forming the fourth side portion 105,
Diffuser type DBD plasma module. According to claim 10,
A hose connector 810 is coupled to the gas inlet 400,
Diffuser type DBD plasma module. According to claim 11,
The bottom surface portion 101 of the first chamber member 110 is provided with a linear opening 111 extending below the counter electrode 220 to a length equal to or less than the length of the counter electrode 220,
The voltage applying unit 700 is inserted into the linear opening 111 and connected to the counter electrode 220,
Diffuser type DBD plasma module. According to claim 1,
The separation distance between the core electrode 210 and the counter electrode 220 is disposed at intervals within the range of 1 to 2 mm,
Diffuser type DBD plasma module. a duct (2000) including an inlet through which malodorous gas is introduced and an outlet disposed on the opposite side of the inlet; and
It includes the plasma module 1000 of claim 1 inserted into the duct 2000 so as to be close to the inlet,
The plasma module 1000 emits ozone and active species by plasma into the inside of the duct 2000,
Odor removal device using DBD plasma module. According to claim 14,
A plurality of baffles 3000 arranged at regular intervals at the rear end of the plasma module 1000 inside the duct 2000 and alternately fixed to surfaces facing each other on the inner surface of the duct 2000 Further comprising,
Odor removal device using DBD plasma module. According to claim 15,
Further comprising a catalyst 4000 disposed at the rear end of the plurality of baffles 3000, the entire edge of which is fixed to the inner surface of the duct 2000.
Odor removal device using DBD plasma module. According to claim 14,
On one surface of the duct 2000, a plurality of plasma module insertion slots for inserting the plasma module 1000 into the duct 2000 are arranged along the longitudinal direction of the duct 2000,
Odor removal device using DBD plasma module. According to claim 16,
Activated carbon is bonded to one side of the catalyst (4000),
Odor removal device using DBD plasma module.

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