KR102410625B1 - Harmful Gas Reduction System - Google Patents

Abstract

The present invention relates to a system for reducing harmful gases containing harmful components such as odor-causing substances and VOCs, and more particularly, to a pre-treatment filter module for filtering incoming harmful gases; a plasma stirring module for reducing odor-causing substances and harmful components by mixing the filtered harmful gas with the plasma gas; and a wet treatment module for reducing gas and ozone, and relates to a harmful gas reduction system capable of reducing odor-causing substances, harmful components, and ozone in harmful gases.

Description

Harmful Gas Reduction System {Harmful Gas Reduction System }

The present invention relates to a system for reducing harmful gases containing harmful components such as odor-causing substances and VOCs, and more particularly, to a pre-treatment filter module for filtering incoming harmful gases; a plasma stirring module for reducing odor-causing substances and harmful components by mixing the filtered harmful gas with the plasma gas; and a wet treatment module for reducing gas and ozone, and relates to a harmful gas reduction system capable of reducing odor-causing substances, harmful components, and ozone in harmful gases.

In general, odors and harmful gases are generated in livestock complexes, food treatment plants, sewage, wastewater and excreta treatment plants, and industrial complexes, and the amount usually generated from sewage pipes is the largest. These odors are more strongly emitted by the sediment deposited in the sewer pipe, which gives headaches, vomiting, and discomfort to the residents living around the sewer pipe and people passing by it.

In order to treat these odors and harmful gases, various technologies have been used in the past, from traditional methods including absorption, adsorption, and combustion to oxidation methods using catalysts, ultraviolet rays, ozone, plasma, and methods using microorganisms such as biofilters and biological treatment. .

Among various harmful gases, high-humidity, high-concentration, local exhaust noxious gas is treated with wet deodorization methods such as biofilter and chemical cleaning, and harmful gas generated from the machine room, pre-treatment room, and dehydration operation of public treatment plants is economical in large-capacity treatment by deodorizing space. Photocatalyst or plasma deodorization method is mainly used.

Among them, looking at the deodorization method using plasma, ozone (O3) oxidation, OH radical (Radical) oxidation, or ion cluster oxidation is used, and it is a device that decomposes pollutants and odor components in the air. This method is a dry deodorization method and is suitable for large-capacity space deodorization as it is economical due to a lower differential pressure load compared to biofilters and chemical cleaning.

However, in the case of purifying harmful gas using large-capacity space deodorization, the deodorization performance is determined according to the mixing degree of plasma and harmful gas. It is not actively done.

In addition, in the technology for reducing odors by the oxidation method using plasma, the exhaust gas discharged from the rear end of the plasma reactor contains some harmful by-products such as ozone, so there is a problem in that it is difficult to be discharged as a completely harmless gas.

Ozone is a light blue gas with a characteristic odor made of three oxygen atoms, and has a half-life of 2 to 13 hours in air and 15 to 30 minutes in water. In addition, ozone has a strong oxidizing power, so it is mainly used for sterilizing and disinfecting beverages or for bleaching clothes. However, when the concentration exceeds 0.1ppm, it stimulates the respiratory tract, and in severe cases, cough, headache, and decreased lung function occur, causing disease.

When the plasma method for odor reduction is used, residual ozone remains in the gas discharged after treatment, which can harm people and cause air pollution.

In addition, since these industrial hazardous gas reduction systems are bulky and difficult to dismantle once installed, the difficulty of operation is high and cost is high when changing the configuration.

Therefore, in a harmful gas reduction system using plasma oxidation to reduce odors. It improves the mixing performance of harmful gas and plasma gas and at the same time reduces residual ozone contained in the exhaust gas, so that harmless gas can be discharged at the final stage. The development of a convenient harmful gas reduction system is on the rise.

KR 10-1993636 (B1) 2019.06.21. KR 10-2269589 (B1) 2021.06.18.

An object of the present invention to solve the above problem is that the plasma stirring module for reducing the odor-causing substances and harmful components contained in the harmful gas and the wet treatment module for reducing the ozone and harmful components in the gas are modularized and separated, so any one The purpose of this module is to provide a system for reducing harmful gases that can be easily separated and replaced to provide excellent maintenance convenience and change the configuration to suit the installation site.

Another object of the present invention is to provide a system for reducing harmful gases that can enhance deodorization performance by accelerating the mixing of harmful gases and plasma gases by forming a flow line through which harmful gases move in a zigzag shape inside a stirring chamber into which harmful gases are introduced will do

Another object of the present invention is to bend the end of the partition wall forming the flow line in the opposite direction to the gas flow to resist the gas flow, thereby inducing irregularity in the flow to generate turbulence to accelerate the mixing of harmful gas and plasma gas. To provide a harmful gas reduction system.

Another object of the present invention is to form a gas flow line by dividing it into a straight gap section and a curved corner section, and cause instability of the flow while passing the gap section and passing through the corner section to induce mixing of harmful gas and plasma gas. To provide a harmful gas reduction system.

Another object of the present invention is to form the gap section into a narrow first gap section and a wide second gap section to allow gas to pass through the first gap section at a high speed and to pass the second gap section at a relatively slow speed. It is to provide a harmful gas reduction system that can promote mixing of plasma gas and harmful gas by using a flow velocity difference.

Another object of the present invention is to form a through hole so that the gas can pass through the barrier rib, and cause the gas that has passed through the through hole to collide with the gas that has crossed the barrier along the flow line, thereby causing gas instability and harmful An object of the present invention is to provide a system for reducing harmful gases that promotes mixing of gas and plasma gas.

Another object of the present invention is to provide a harmful gas reduction system capable of reducing ozone contained in the gas discharged after the harmful gas undergoes plasma oxidation treatment, as well as reducing untreated odor-causing substances and harmful components in the gas. .

In order to achieve the above object, the present invention provides a system for reducing harmful gases containing odor-causing substances and harmful components, comprising: a plasma stirring module 300 for reducing odor-causing substances in the gas by mixing harmful gases with plasma gas; and a wet treatment module 400 in which harmful components and ozone in the gas flowing in from the plasma stirring module 300 are reduced while passing between the wet walls 420 where water descends along the surface. 300) is a stirring chamber 310 in which the stirring inlet 311 through which harmful gas is introduced and the stirring outlet 312 through which the treated gas is discharged, the flow line 320 through which the gas moves is formed in the hollow body (310) ; The agitation chamber 310 alternately protrudes from both sides of the inside to form the flow line 320 in a zigzag shape, and a bent portion 331 with an end extending in the opposite direction to the gas flow is formed, and is perpendicular to the gas flow direction. a plurality of partition walls 330 disposed to form a; and a gas inlet 342 through which the plasma gas is introduced is formed at the front end of the barrier rib 330 in the gas movement path, and a gas flow path 344 through which the plasma gas moves inside the hollow is formed. and a plasma injector 340 in which a passage 343 through which a harmful gas passes is formed, and a plurality of fine holes 345 through which a plasma gas is ejected are formed in the gas passage 344 .

In addition, the flow line 320 of the present invention includes a gap section 321 moving between the adjacent partition walls 330 and between the extended bent portion 331 of the partition wall 330 and the inner wall surface of the stirring chamber 310 . It includes an in-corner section 324 .

In addition, in the gap section 321 of the present invention, the distance between the first gap section 322 formed to have a narrow width and the adjacent partition wall 330 are spaced apart from each other so that the distance between the adjacent partition walls 330 is adjacent to each other. and a second gap section 323 formed with a wider width than the first gap section 322, and the gas passing through the first gap section 322 moves at high pressure and high speed, and the first gap The gas passing through the section 322 passes through the corner section 324 and enters the second gap section 323 while passing through the second gap section 323 at a low pressure and low speed, and the gas passes through the first gap section 323. While repeatedly passing through the gap section 322 and the second gap section 323, the mixing of the noxious gas and the plasma gas is accelerated by the change in pressure.

In addition, in the present invention, the gas passing through the gap section 321 collides with the bent portion 331 and the pressure increases.

In addition, a through hole 332 through which gas passes is formed on the surface of the partition wall 330 of the present invention, and the gas passing through the through hole 332 moves past the corner section 324 of the corresponding partition wall 330 . It collides with the gas and creates turbulence.

In addition, the amount of gas passing through the through hole 332 of the present invention is less than the amount of gas passing through the corner section 324 of the partition wall 330 .

In addition, the wet treatment module 400 of the present invention has a hollow inside, and a wet treatment chamber 410 in which a wet treatment inlet 411 through which ozone-containing gas is introduced and a wet treatment outlet 414 through which gas is discharged are formed. ); a lower plate 440 spaced upward from the lower surface of the wet processing chamber 410 and having a plurality of lower through holes 441 formed therein; a lower water tank 450 formed between the lower surface of the wet treatment chamber 410 and the lower plate 440 and into which water is introduced from the lower through hole 441; an upper plate 430 disposed upwardly from the lower plate 440 and having a plurality of slits 431 formed in a gas flow direction; a plurality of wet walls 420 having a lower end disposed on the lower plate 440, passing through the slit 431 and protruding above the upper plate 430, the slit 431 and the gap are formed; and a lower pipe 462 provided below the lower plate 440 and an upper pipe 461 provided above the upper plate 430, the lower water tank ( It includes;

In addition, an upper through hole 432 is formed in the upper plate 430 of the present invention, so that the water at the upper portion of the upper plate 430 descends through the upper through hole 432 and comes into contact with the gas, and the wet treatment inlet 411 is provided with a sprayer 480 for spraying water supplied from an external water supply source 481, and the gas passing through the wet treatment inlet 411 is mixed with the mist.

In addition, a blower 100 for sucking in harmful gas through the ventilation inlet 110 of the present invention and discharging to the ventilation outlet 120; a pre-treatment filter module 200 for filtering the harmful gas flowing into the stirring inlet 311 of the plasma stirring module 300; It further includes a; post-treatment filter module 500 for reducing harmful substances in the gas discharged from the wet treatment module 400.

In the harmful gas reduction system according to the present invention, the plasma stirring module for reducing odor-causing substances and harmful components contained in the harmful gas and the wet treatment module for reducing ozone and harmful components in the gas are modularized and separated, so any one module It can be easily separated and replaced, so it is easy to maintain and has the advantage of being able to change the configuration to suit the installation location.

In addition, the present invention has an advantage in that the deodorization performance can be strengthened by accelerating the mixing of the harmful gas and the plasma gas by forming a flow line through which the harmful gas moves in a zigzag shape inside the stirring chamber into which the harmful gas is introduced.

In addition, the present invention has the advantage of accelerating the mixing of harmful gas and plasma gas by inducing irregularity in the flow by bending the end of the partition wall forming the flow line to face the opposite direction to the gas flow and thereby inducing irregularity in the flow. have.

In addition, the present invention forms a gas flow line by dividing it into a straight gap section and a curved corner section, and while passing through the gap section and passing through the corner section, it causes instability of the flow to induce mixing of harmful gas and plasma gas. have.

In addition, the present invention forms the gap section into a narrow first gap section and a wide second gap section to allow gas to pass through the first gap section at a high speed and to pass through the second gap section at a relatively slow speed. Therefore, there is an advantage in that the mixing of the plasma gas and the harmful gas can be promoted by using the flow velocity difference.

In addition, the present invention forms a through-hole so that the gas can pass through the barrier rib, and causes the gas passing through the through-hole to collide with the gas that has crossed the barrier along the flow line, thereby causing gas instability and harmful gas and There is an advantage of promoting the mixing of the plasma gas.

In addition, the present invention has the advantage of reducing ozone contained in the gas discharged after the harmful gas undergoes plasma oxidation treatment, as well as reducing untreated odor-causing substances and harmful components in the gas.

1 is an overall perspective view of the harmful gas reduction system of the present invention.
Figure 2 is an overall perspective view showing the inside of each module in the harmful gas reduction system of the present invention.
Figure 3 is an overall perspective view showing the inside of the plasma stirring module in the harmful gas reduction system of the present invention.
Figure 4 is a longitudinal cross-sectional view of the plasma stirring module in the harmful gas reduction system of the present invention.
Figure 5 is a perspective view showing a plasma injector in the harmful gas reduction system of the present invention.
6 is a perspective view showing a wet treatment module in the harmful gas reduction system of the present invention.
7 is a view showing a wet treatment module in the harmful gas reduction system of the present invention, (a) is a perspective view showing a wet wall of one embodiment, (b) is a wet wall of another embodiment, a perforated hole, hydrophilic coating agent and media particles are provided A perspective view of the finished state.
8 is a view showing a wet treatment module in the harmful gas reduction system of the present invention, and is a cross-sectional view of the lower plate in a state in which the wet treatment inlet in the form of a fallopian tube is formed.
9 is a longitudinal cross-sectional view showing the flow of water as showing a wet treatment module in the harmful gas reduction system of the present invention.
10 is a cross-sectional view of the wet treatment module in the harmful gas reduction system of the present invention so that the upper plate is shown. A cross-sectional view of a state in which an upper hole is formed in the entire area of

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement them.

1 to 10, the harmful gas reduction system according to the present invention is installed in a odor generating facility such as a sewage treatment plant to reduce odor-causing substances, harmful components, and ozone.

A pre-treatment filter module 200 for filtering the incoming harmful gas;

a plasma stirring module 300 for reducing odor-causing substances in the gas by mixing the harmful gas passing through the pre-treatment filter module 200 with the plasma gas;

and a wet treatment module 400 for reducing the gas and ozone introduced from the plasma stirring module 300 .

The harmful gas reduction system according to the present invention is installed in odor generating facilities such as livestock complexes, food treatment plants, sewage/wastewater and excreta treatment plants, and industrial complexes. It aims to reduce odors or harmful components in harmful gases by treating gases containing harmful components.

In the present invention, the gas containing odor-causing substances and harmful components to be treated is referred to as 'noxious gas', and the gas in which the harmful gas is mixed with the plasma gas in the plasma stirring module 300 is referred to as 'gas' or 'mixed gas'. refers to The harmful gas flows into the plasma stirring module 300 through the pre-treatment filter module 200 through the blower 100, and after the gas mixed with the plasma gas is discharged from the plasma stirring module 300, the wet treatment module 400 ) is introduced into

In order to achieve this purpose, the plasma stirring module 300 for decomposing odor-causing substances and harmful components by using plasma and the plasma stirring module 300 to reduce residual odors, harmful components and ozone remaining in the gas discharged from the plasma stirring module 300 A wet processing module 400 is provided.

In addition, the pre-filter 220, the demister ( 230) (Demister) and an adsorbent to filter foreign substances and harmful components in the gas.

In the present invention, harmful gas, which is a gas to be treated, is introduced into the pre-treatment filter module 200 through the blower 100 located at the forefront during the treatment process for reducing harmful gases, and the pre-treatment filter module 200 performs primary filtering The harmful gas enters the plasma stirring module 300 due to the continuous blowing operation of the blower 100 .

In the plasma stirring module 300, harmful gas and plasma gas are mixed to form a mixed gas, and odor-causing substances and harmful components in the harmful gas are reduced by the strong oxidizing power of plasma.

Mixing of harmful gas and plasma gas is induced while passing through the plasma stirring module 300 , and odor-causing substances and harmful components in the harmful gas are discharged in a reduced state and flowed into the wet treatment module 400 , the wet treatment In the module 400 , the gas is washed with water in a wet manner so that residual ozone and untreated odor-causing substances and harmful components remaining in the gas are reduced.

The gas discharged from the wet treatment module 400 flows into the post-treatment filter module 500, is filtered secondarily by an adsorbent that adsorbs acidic, neutral and basic components in the post-treatment filter module 500, and is discharged to the outside. .

The present invention can reduce odor-causing substances and harmful components in the harmful gas by allowing the harmful gas to be introduced into each module and then undergo a treatment process corresponding to each module.

In addition, by modularizing the configuration responsible for each treatment process, maintenance work limited to each module can be smoothly performed, and the configuration of the present invention can be adjusted according to the conditions and environment of the odor generating facility in which the present invention is installed. The arrangement order and combination form can be varied in various ways.

1 to 2, the blower 100 according to the present invention is configured to set the flow direction of harmful gas, and is disposed at the forefront of the treatment process.

The blower 100 operates an internal fan to suck in harmful gases in the atmosphere through the blower inlet 110, and the blower outlet 120 is formed toward the filter inlet 210 of the pre-treatment filter module 200. Through discharge

Noxious gas discharged from the blower outlet 120 of the blower 100 provides flow power to flow into the pretreatment filter module 200 disposed at the rear end of the blower 100, and the plasma in the pretreatment filter module 200 It continuously operates so that the gas can flow through the stirring module 300 and the wet treatment module 400 to the post-treatment filter module 500 so that a smooth flow can be achieved.

1 to 2, the pre-processing filter module 200 into which the harmful gas is introduced by the blower 100 is a configuration for primary filtering of the harmful gas, and the plasma stirring module 300 and the wet processing module The efficiency and durability of the plasma stirring module 300 and the wet treatment module 400 are improved by first refining the harmful gas before flowing into the 400 .

The pretreatment filter module 200 has a filter inlet 210 formed at the front end to introduce harmful gas discharged from the blower outlet 120 of the blower 100 to the inside through the filter inlet 210 . The filters of the pre-filter 220 and the demister 230 are disposed inside the pre-processing filter module 200, but the types and functions of the filters are not limited in one embodiment of the present invention.

The harmful gas filtered by the filter is discharged to the outside of the pre-treatment filter module 200 through the filter outlet 240, and the filter outlet 240 is in contact with the plasma stirring module 300, so the stirring inlet of the plasma stirring unit ( 311) is introduced.

The pre-filter module 200 is provided with a pre-filter 220 that filters out foreign substances having a relatively large particle size such as animal hair, lint, hair, and large dust in the harmful gas. The pre-filter 220 is disposed at the forefront of the purifying process of harmful gases.

The pre-filter 220 is washable with water and is provided so that it is easy to attach and detach, and when the efficiency of the filter decreases after using it for a certain period of time, it is separated from the pre-treatment filter module 200, washed with water, and then reinstalled to be used. can

The demister 230 disposed at the rear end of the pre-filter 220 in the pre-treatment filter is a filter for reducing moisture in the harmful gas, and filters moisture in the harmful gas before entering the plasma stirring module 300. . Accordingly, the moisture content in the harmful gas is reduced, so that the harmful gas introduced into the plasma stirring module 300 is smoothly mixed with the plasma gas injected into the plasma stirring module 300 .

The harmful gas discharged through the filter outlet 240 of the pre-treatment filter module 200 flows into the plasma stirring module 300 shown in FIGS. reduce

Among the gases present in the plasma stirring module 300, a gas to be treated is referred to as a harmful gas, a deodorizing gas is referred to as a plasma gas, and a gas in a state in which the harmful gas and plasma gas are mixed is referred to as a mixed gas or gas. .

The plasma stirring module 300 is

A stirring chamber 310 in which a stirring inlet 311 through which harmful gas is introduced and a stirring outlet 312 through which gas is discharged are formed, and a flow line 320 through which gas moves is formed in a hollow interior;

The agitation chamber 310 alternately protrudes from both sides of the inside to form the flow line 320 in a zigzag shape, and a bent portion 331 with an end extending in the opposite direction to the gas flow is formed, and is perpendicular to the gas flow direction. a plurality of partition walls 330 disposed to form a; and

It is disposed at the front end of the partition wall 330 in the movement path of the gas, a gas inlet 342 through which plasma gas is introduced is formed, and a gas flow path 344 through which the plasma gas moves is formed in the hollow inside. and a plasma injector 340 in which a passage 343 through which noxious gas passes is formed, and a plurality of fine holes 345 through which plasma gas is ejected are formed in the gas passage 344 .

In the plasma stirring module 300 shown in FIGS. 3 to 4 , harmful gas flows into the stirring chamber 310 through the stirring inlet 311 formed on one side, and the harmful gas inside the stirring chamber 310 is The odor-causing substances and harmful components in the harmful gas are oxidized or decomposed by mixing and reacting with the plasma gas ejected from the plasma injector 340 , so that the odor-causing materials and harmful components are deodorized and reduced. The gas from which the odor-causing material is removed by reacting with the plasma is discharged to the outside of the stirring chamber 310 through the stirring outlet 312 .

As shown in FIG. 4 , a plurality of partition walls 330 are arranged in a zigzag inside the stirring chamber 310 to form a flow line 320 in which the gas introduced therein moves in a zigzag manner. Therefore, the gas flow path is formed to be long, so that the residence time can be increased, so that the harmful gas and the plasma gas can be mixed smoothly.

The harmful gas from which foreign substances have been removed by passing through the pre-treatment filter module 200 passes through the plasma injector 340 . The harmful gas is mixed with the plasma gas ejected from the plasma injector 340, and while passing through the partition wall 330 disposed at the rear end of the plasma injector 340, the mixing is accelerated, and the odor-causing substances and harmful components are reduced and deodorization is completed. , the purified gas is discharged to the outside through the stirring outlet (312).

The agitation chamber 310 is a space where harmful gas flows into and is mixed with plasma gas, and harmful gas is introduced from the stirring inlet 311 in contact with the filter outlet 240 of the pre-treatment filter module 200 and , the deodorized gas while being mixed with the plasma gas is discharged to the agitation outlet 312 in contact with the wet treatment inlet 411 of the wet treatment module 400 .

Referring to FIG. 4 , a flow line 320 is formed inside the stirring chamber 310 and has a zigzag shape so that the flow line 320 can be formed to be sufficiently long.

As a means for forming the flow line 320 in a zigzag shape, a plurality of partition walls 330 are disposed inside the stirring chamber 310 .

The surface of the partition wall 330 is perpendicular to the flow direction of the gas and faces the gas in the front.

The partition wall 330 is disposed in plurality, and is disposed to alternately protrude inward from the left side and the right side of the inner surface of the stirring chamber 310 to form a zigzag-shaped flow line 320 . The gas flow line 320 moves along the partition wall 330 in a zigzag trajectory.

Since the partition wall 330 is arranged in a zigzag shape, a gas flow path is formed long, and the residence time inside the stirring chamber 310 is increased to promote mixing of harmful gas and plasma gas, thereby improving deodorization performance.

The flow line 320 formed in a zigzag shape due to the partition wall 330 may cause an abrupt curve due to a large curvature and a large change in its movement direction, thereby increasing the irregularity of the gas flow, thereby generating turbulence, thereby generating harmful gas and plasma gas mixing can be accelerated.

If the flow line 320 is divided in more detail, the flow line 320 includes a gap section 321 moving between the adjacent partition walls 330 and an extended bent portion 331 of the partition wall 330 . and a corner section 324 between the inner wall surface of the stirring chamber 310 and the agitation chamber 310 .

The gas passing through the gap section 321 moves along a straight flow path, and the gas passing through the corner section 324 moves along a curved path.

Accordingly, after exiting the gap section 321 and passing through the corner section 324, the flow is bent due to a change in the path, causing instability of the flow, thereby generating turbulence.

Due to the turbulence, it is possible to further promote the mixing of the harmful gas and the plasma gas in the gas.

The gap section 321 includes a first gap section 322 formed to have a narrow width so that the distance between the adjacent partition walls 330 is adjacent and the distance between the adjacent partition walls 330 is spaced apart from the first gap. The second gap section 323 is formed to have a wider width than the section 322 .

The first gap section 322 and the second gap section 323 intersect and are repeatedly formed. That is, when the gas passes through the first gap section 322 and passes through the corner section 324 , it enters the second gap section 323 , passes the second gap section 323 and passes through the corner section 324 . After passing through, the first gap section 322 is entered.

The first gap section 322 is formed narrower than the second gap section 323, and the gas passing through the first gap section 322 has a relatively narrow width compared to the second gap section 323. It is formed in a state of high pressure and high speed while moving.

When the high-pressure and high-speed gas passes through the corner section 324 and enters the second gap section 323 , it is resolved due to the widened flow width, and the gas changes to low pressure and low speed.

After passing through the second gap section 323 , it passes through the corner section 324 and enters the first gap section 322 again, changing to a high-pressure and high-speed state again.

Therefore, as the gas repeatedly passes while crossing the first gap section 322 and the second gap section 323, the pressure and velocity fluctuations are significantly formed. this is accelerated

The partition wall 330 is formed with a bent portion 331 having a bent end. The bent portion 331 is bent toward the opposite direction of the gas flow. That is, if the flow direction of the gas is toward the right, the bent part 331 is bent toward the left at the end of the partition wall 330 .

As the gas moves along the flow line 320 and passes over the partition wall 330 , it collides with the bent portion 331 and receives resistance. The bent portion 331 obstructs the flow of gas, causing instability, and causing turbulence.

The turbulence generated in the bent part 331 obstructs the gas flow at the entry part of the corner section 324 , instability is increased, and the mixture of harmful gas and plasma gas is accelerated.

The bent portion 331 is formed at the boundary between the exit portion of the gap section 321 and the entry portion of the corner section 324 , so that the gas pressure rises at the exit portion of the gap section 321 , and a high-pressure corner section (324) to pass quickly.

A through hole 332 is formed in the surface of the partition wall 330 so that gas can pass through the partition wall 330 . The through hole 332 is formed within the range of 0.1 to 5% of the total area of the surface of the partition wall 330 .

The gas moving along the flow line 320 collides with the partition wall 330 and bypasses the path, but some gas passes through the partition wall 330 through the through hole 332 .

Some of the gas that has passed through the through hole 332 collides with the gas that has already passed through the corner section 324 of the partition wall 330 and has passed through the next gap section 321 to cause turbulence. Due to this turbulence, the mixing of the harmful gas and the plasma gas can be further promoted.

At this time, since the size of the through hole 332 is formed to be smaller than the area of the barrier rib 330 , the amount of gas passing through the through hole 332 is the amount of gas passing through the corner section 324 of the barrier rib 330 . less than the amount

In addition, the speed of the gas passing through the through hole 332 is faster than the speed of the gas passing through the corner section 324 of the partition wall 330 .

In summary, because the flow line 320 is formed in a zigzag due to the intersecting arrangement of the partition walls 330, the flow path is lengthened and the residence time of the gas in the stirring chamber 310 is increased, so that the mixing action of harmful gas and plasma gas occurs. Make sure you have enough time to do it.

In addition, the flow line 320 is formed of a gap section 321 and a corner section 324 to cause unstable flow, and the gap section 321 has a narrow first gap section 322 and a wide gap section 322 . The second gap section 323 is repeatedly formed to cross each other, so that the mixing of the harmful gas and the plasma gas can be further promoted by a change in pressure.

In addition, by forming a bent portion 331 protruding in the opposite direction to the gas flow at the end of the partition wall 330 , the gas collides with the bent portion 331 while proceeding along the flow line 320 , thereby generating turbulence. Therefore, it is possible to induce the formation of a mixed gas.

In addition, a through hole 332 is formed in the partition wall 330 within 0.1 to 5% of the total area so that some gas passes through the partition wall 330 through the through hole 332 in the gap section at the rear end of the partition wall 330 ( 321), which can induce turbulence and accelerate mixing.

As shown in FIG. 5 , the plasma injector 340 disposed at the rear end of the stirring inlet 311 in the plasma stirring module 300 is a device for injecting plasma gas into harmful gases. After the plasma gas is injected into the harmful gas, mixing is induced while moving along the flow line 320 in a mixed state.

The plasma injector 340 is provided with a gas flow path 344 through which a plasma gas flows, and the gas flow path 344 is formed in a hollow pipe shape.

A rectangular passage 343 is formed in the plasma injector 340 through which harmful gas passes. The passage 343 may be formed in a single or a plurality of rectangular shapes, and in an embodiment of the present invention, a plurality of passages 343 are shown.

Noxious gas may also pass through the outside of the plasma injector 340, which is a region other than the passage 343 formed inside the plasma injector 340.

A plasma generating unit 341 is provided above the stirring chamber 310 , and plasma gas is generated in the plasma generating unit 341 .

A gas inlet 342 through which the plasma gas generated by the plasma generating unit 341 is supplied to the plasma injector 340 is formed at one side of the plasma injector 340 . The plasma gas introduced through the gas inlet 342 flows along the gas flow path 344 .

The plasma gas flowing in the gas flow path 344 is ejected to the outside through the micro-holes 345 . The micro-holes 345 are formed in plurality along the surface of the gas flow path 344 . The micro-holes 345 are not formed on the surface on which the plasma gas can be ejected from the top and bottom of the plasma injector 340 in the inward direction. That is, the plasma gas is not ejected in the vertical direction, but is ejected in the left and right horizontal directions. The direction in which the plasma gas is ejected through the fine hole 345 is perpendicular to the flow direction of the harmful gas.

The flow of harmful gas and plasma gas inside the plasma stirring module 300 will be described.

Noxious gas, which is a gas to be purified, is discharged from the filter outlet 240 of the pre-treatment filter module 200 and introduced into the stirring chamber 310 through the stirring inlet 311 .

The noxious gas passing through the stirring inlet 311 passes through the plasma injector 340, passing through the passage 343 and the plasma injector 340 to the outside of the rim to be mixed with the plasma gas ejected from the microholes 345. do.

The mixed gas in a state in which the harmful gas and plasma gas are mixed is accelerated while passing through the partition wall 330 . Since the flow line 320 is formed in a zigzag by the partition wall 330 , the flow path is lengthened and the residence time inside the stirring chamber 310 is increased, so that the harmful gas and the plasma gas can be sufficiently mixed with each other.

The gap section 321 and the corner section 324 are repeatedly moved, and the flow becomes more unstable and turbulence occurs as it crosses the narrow first gap section 322 and the wide second gap section 323. The mixing of the mixed gas is further promoted due to the deepening and turbulence.

Also, the mixed gas collides with the bent portion 331, and some gas escapes through the through hole 332 and collides with the gas passing through the gap section 321 at the rear end of the partition wall 330, making the flow unstable and turbulent This accelerates the mixing.

The mixed gas has a long residence time due to the shape and structure of the partition wall 330 and repeatedly generates turbulence so that the harmful gas and the plasma gas can be sufficiently mixed, so that the odor-causing substance in the harmful gas is oxidized by the plasma gas and decomposition to further improve deodorization performance.

6 to 10, the gas discharged from the stirring outlet 312 of the plasma stirring module 300 flows into the wet treatment inlet 411 of the wet treatment module 400, and the remaining untreated gas in the gas A process to reduce the odor-causing substances, harmful components, and residual ozone is carried out.

The wet treatment module 400 is a module for washing with wet water to reduce residual ozone and odor-causing substances and harmful components contained in the gas that has undergone plasma oxidation treatment,

a wet treatment chamber 410 having a hollow interior and having a wet treatment inlet 411 through which ozone-containing gas is introduced and a wet treatment outlet 414 through which gas is discharged;

a lower plate 440 spaced upward from the lower surface of the wet processing chamber 410 and having a plurality of lower through holes 441 formed therein;

a lower water tank 450 formed between the lower surface of the wet treatment chamber 410 and the lower plate 440 and into which water is introduced from the lower through hole 441;

an upper plate 430 disposed upwardly from the lower plate 440 and having a plurality of slits 431 formed in a gas flow direction;

a plurality of wet walls 420 having a lower end disposed on the lower plate 440, passing through the slit 431 and protruding above the upper plate 430, the slit 431 and the gap are formed; and

It is provided on one side of the wet treatment chamber 410 , a lower pipe 462 is provided below the lower plate 440 , and an upper pipe 461 is provided above the upper plate 430 , so that the lower water tank 450 is provided. ) of the transfer pump 460 for transferring the water to the upper portion of the upper plate 430; includes.

The present invention utilizes the physical properties of ozone having a half-life of 15 to 30 minutes in water to utilize the natural reduction of ozone in the continuous cycle of water. In the gas discharged after plasma oxidation treatment, residual ozone and untreated odor-causing substances and harmful components are included. By allowing the odor-causing substances to sink to the bottom, harmless gases are finally discharged.

In the present invention, treatment refers to a water washing process in which gas is dissolved in water to wash off odor-causing substances and harmful components contained in the gas, and residual ozone with water. This process does not mean complete deodorization and removal of harmful components in the gas.

The gas discharged from the stirring outlet 312 of the plasma stirring module 300 flows into the wet treatment inlet 411 of the wet treatment module 400, and is dissolved in contact with water in the wet treatment chamber 410, Residual ozone, odor-causing substances, and harmful components contained in the gas sink to the bottom along the flow of water, and the gas with reduced harmful substances is discharged to the wet treatment outlet 414 .

6 to 10 , in the wet processing module 400 , the wet processing chamber 410 has a hollow inside, and the gas that has passed through the plasma stirring module 300 flows into one side of the wet processing chamber 410 . A treatment inlet 411 is formed, and a wet treatment outlet 414 through which the gas that has undergone a treatment process is discharged in the wet treatment chamber 410 is formed.

The wet treatment chamber 410 is sealed except for the wet treatment inlet 411 and the wet treatment outlet 414, so that the gas introduced into the wet treatment chamber 410 contains ozone, odor-causing substances, and harmful components. It can be prevented from being released into the atmosphere without being removed.

Referring to FIG. 7 , a demister 230 is provided at the wet treatment outlet 414 . The present invention utilizes water to purify the gas by flushing, so that the moisture content in the gas is high, but the demister 230 reduces the moisture before it is discharged to the outside of the wet treatment chamber 410 and then discharges it to the outside. ) is provided. The gas that has passed through the demister 230 has reduced moisture and is discharged to the outside.

6 to 10 , a plurality of wet walls 420 through which water flows along the surface are provided inside the wet treatment chamber 410 . The wet wall 420 has a plate shape having a predetermined thickness, is vertically erected, and is arranged in a direction perpendicular to the flow direction of the gas from the wet treatment inlet 411 to the wet treatment outlet 414 .

The wet wall 420 flows downward along the surface of the wet wall 420 located above the wet treatment chamber 410, and comes into contact with the gas on the wet surface. The gas comes into contact with water remaining on the surface of the wet wall 420 and is dissolved in the water, and residual ozone, odor-causing substances, and harmful components in the gas are absorbed.

The wet wall 420 is disposed such that a gap with the adjacent wet wall 420 is narrow. The gap between the wet walls 420 is a passage through which the gas introduced from the wet treatment inlet 411 passes, and as it passes through the gap, ozone in the gas, untreated odor-causing substances, and harmful components come into contact with water and are dissolved, and the bottom moves to the bottom along the flowing water.

As shown in FIG. 7B , a perforated hole 421 may be formed on the surface of the wet wall 420 . The perforated hole 421 formed in the wet wall 420 is a hole through which water flows through the wet wall 420 while flowing along the surface of the wet wall 420 .

Water flows downward along one surface of the wet wall 420 , and when it meets the perforated hole 421 , it moves to the other surface through the perforated hole 421 . Also, when water flows from the other surface and meets the perforated hole 421 again, it moves to one surface.

Therefore, through the perforated hole 421, water repeatedly moves one side and the other side of the surface of the wet wall 420, and the flow path is directed downward, but draws a zigzag shape. Due to this, the time for the water to flow along the wet wall 420 may be extended, thereby increasing the contact time with the gas. Since the residence time of the water on the wet wall 420 surface is increased, the contact time with the gas and the dissolution efficiency are increased even with a small amount of water without consuming a large amount of water. There is an economic effect because water consumption is reduced.

A hydrophilic coating agent 422 is distributed on the surface of the wet wall 420 . The surface of the wet wall 420 on which the hydrophilic coating agent 422 is distributed has enhanced hydrophilicity.

Water flowing along the wet wall 420 may have a lowering speed due to the hydrophilic coating agent 422 , so that it can stay on the surface of the wet wall 420 for a longer period of time.

In addition, the media particle 423 powder may be attached to the surface of the wet wall 420 . The media particle 423 powder is attached to a partial area on the surface of the wet wall 420 and does not cover the entire area. Accordingly, the hydrophilic coating agent 422 may be exposed on the surface.

The media particle 423 powder may be made of components such as carbon and zeolite, and functions as a catalyst or adsorbent to reduce harmful components in the gas.

In addition, the surface of the wet wall 420 is formed in a rough embossed shape due to the media particles 423 . This can extend the residence time as the water flowing along the wet wall 420 descends along the embossed surface as well as the effect of reducing harmful components due to the components of the media particles 423, and increase the contact time with the gas. can

Due to the hydrophilic coating agent 422 and the media particles 423 further provided on the wet wall 420 , the residence time of water in the wet wall 420 becomes longer, so that the contact time with the gas and the dissolution efficiency can be increased.

As shown in FIG. 8 , a lower plate 440 supporting the wet wall 420 is disposed under the wet wall 420 . The lower plate 440 is located upwardly spaced apart from the lower surface of the wet processing chamber 410 .

The lower plate 440 has a plurality of lower through-holes 441 are formed. The lower plate 440 is a surface forming the interface of the lower water tank 450 to be described later. When the water descends downward on the wet wall 420 , it flows into the lower water tank 450 from the lower plate 440 through the lower through hole 441 .

As shown in FIG. 10 , an upper plate 430 disposed upwardly spaced apart from the lower plate 440 is provided on the upper portion of the wet processing chamber 410 . A plurality of slits 431 protruding upward through the wet wall 420 are formed in the upper plate 430 . A predetermined gap is formed on the inner surface of the slit 431 with the wet wall 420 . Water located on the upper plate 430 flows into a gap formed by separating the inner surface of the slit 431 from the surface of the wet wall 420 and flows downward along the surface of the wet wall 420 .

At this time, the gap between the inner surface of the slit 431 formed in the upper plate 430 and the surface of the wet wall 420 should be sufficiently close to allow the water on the upper plate 430 to flow in. It does not come into contact with the surface of the wet wall 420 and is dropped from the surface and falls downward. Water falling without being in contact with the surface of the wet wall 420 is in contact with the gas for a relatively short time, so that the gas is not sufficiently dissolved, thereby reducing the contact efficiency.

Therefore, it is preferable that the inner surface of the slit 431 is closely close to the surface of the wet wall 420 so that the water on the upper plate 430 can fall downward while in contact with the surface of the wet wall 420 .

Water that freely falls on the upper plate 430 while not in contact with the surface of the wet wall 420 does not occur and flows along it while maintaining contact with the surface of the wet wall 420 to reach the lower plate 440 The longer the time, the longer the contact time with the gas.

Water can be saved because ozone, odor-causing substances and harmful components in gas can be reduced even with a small amount of water because the amount of water dissolved by increasing contact efficiency with gas is increased.

As shown in FIG. 10 , a plurality of fine-sized upper through holes 432 are formed on the surface of the upper plate 430 .

Water staying on the upper plate 430 can descend through the slit 431 and the upper through-hole 432, and the upper through-hole 432 is formed with a very fine diameter. The amount of water flowing along the wet wall 420 surface through the slit 431 is greater than the amount of water falling through it.

The descending water falling from the upper through-hole 432 falls like rain, and as it falls freely, it may come into contact with the gas passing between the upper plate 430 and the lower plate 440 to dissolve it.

Therefore, the effect of reducing ozone, odor-causing substances and harmful components in the gas can be further strengthened.

The upper through hole 432 may be formed with respect to the entire area of the upper plate 430 as shown in FIG. 10(b), or may be formed only in a predetermined area as shown in FIG.

When the upper through-hole 432 is formed only in a predetermined area as shown in FIG. In this case, as the gas moves from the wet treatment inlet 411 to the wet treatment outlet 414 , there is an effect that the gas comes into contact with water by the water on the surface of the wet wall 420 or the water down through the upper through hole 432 .

As shown in FIG. 8 , the front end of the wet wall 420 is disposed to be spaced apart from the wet treatment inlet 411 . The space in which the wet processing inlet 411 and the front end of the wet wall 420 are separated is formed as a diffusion part 415, and the gas introduced into the wet processing chamber 410 through the wet processing inlet 411 is It spreads in all directions in the space of the diffusion part 415 .

The wet treatment inlet 411 may be formed in the shape of a fallopian tube whose cross-sectional area gradually increases toward the inside of the wet treatment chamber 410 , which is another embodiment of the present invention.

In addition, a distribution partition wall 412 is formed in the wet treatment inlet 411 , and a plurality of distribution holes 413 are formed in the distribution partition wall 412 .

In the present invention, since the gas is to reduce ozone, odor-causing substances, and harmful components by washing with water due to contact with water, the gas must be in contact with water as much as possible and dissolved to have a remarkable reduction effect.

Therefore, the distribution partition wall 412 in which the distribution hole 413 is formed is formed in order to maximize the reduction effect only when the gas is spread as wide as possible without concentrating the gas to maintain a uniform density in the wet processing chamber 410. provided

The gas flowing into the wet treatment inlet 411 of the wet treatment module 400 after exiting through the stirring outlet 312 of the plasma stirring module 300 is discharged into the wet treatment chamber 410 before being introduced into the distribution partition wall ( 412) is collided. The gas dispersed after colliding with the distribution partition wall 412 may spread widely while being introduced into the wet processing chamber 410 through the distribution hole 413 .

Therefore, the gas can be introduced at a uniform density not only into the passage between the wet walls 420 located in the central part of the wet treatment chamber 410 but also into the passage between the wet walls 420 located at the edges, the water washing effect can be further strengthened. have.

The gas introduced into the wet treatment chamber 410 through the wet treatment inlet 411 diffuses in all directions while entering the diffusion unit 415 having a larger cross-sectional area than the wet treatment inlet 411, the diffusion portion 415 induces gas to move into the passage between the plurality of wet walls 420 .

The gas loses pressure in the diffusion part 415 and the flow rate is slowed so that it can be dissolved by contact with more water when passing through the passage between the wet walls 420 , and the wet wall farther from the wet treatment inlet 411 . The contact area can be increased by reaching and passing through the passage between the 420 .

As shown in FIG. 8 , a sprayer 480 is provided at the wet treatment inlet 411 to spray water into the incoming gas like a mist. It is mixed with water sprayed from the sprayer 480 before being introduced into the wet treatment chamber 410 to reduce harmful components in the gas.

The sprayer 480 may be supplied with water from an external water supply source 481, and may spray water with a gas by a nozzle.

The gas flows into the wet treatment chamber 410 in a mixed state with the mist, and dissolves more smoothly while passing between the wet walls 420 , so that the effect of reducing harmful components is further improved.

Referring to FIG. 9, when the water located on the upper part of the upper plate 430 flows along the surface of the wet wall 420 and reaches the lower plate 440, the lower water tank through the lower hole 441 formed in the lower plate 440 ( 450), and

The lower water tank 450 has a configuration in which the lower surface of the wet treatment chamber 410 and the lower plate 440 are spaced apart from each other, and the gas introduced from the wet treatment inlet 411 is disposed on the surface of the wet wall 420 . After being dissolved in contact with water, the water that has fallen to the lower plate 440 is temporarily stored.

When it is necessary to exchange the water containing ozone, odor-causing substances, and harmful components stored in the lower water tank 450, it is discharged through a separate pipe (not shown), and new water is supplied to purify the gas to improve the purification efficiency. can be raised

As shown in FIG. 9 , the water stored in the lower water tank 450 is pumped up to the upper part of the upper plate 430 through a transfer pump 460 provided at one side of the wet treatment chamber 410 .

The lower water tank 450 communicates with the transfer pump 460 through a lower pipe 462 , and the water received by the transfer pump 460 raises power through the upper pipe 461 to the upper plate 430 . is discharged to the upper part of

Accordingly, as water is continuously circulated through the transfer pump 460 , it is possible to pass a sufficient time longer than the half-life so that ozone dissolved in water can be naturally decomposed. Odor-causing substances are also held in by the surface tension of water, so they do not leak to the outside.

As shown in FIG. 9 , a downcomer 470 is further provided at one side of the wet treatment chamber 410 . The downcomer 470 is a device for adjusting the depth of water on the upper plate 430 , and is configured to prevent the upper part of the upper plate 430 from overflowing due to excessive supply of water.

The upper end of the downcomer 470 communicates with the space above the upper plate 430 , and the lower end communicates with the space of the lower water tank 450 .

Accordingly, when the water depth of the upper plate 430 is formed higher than the upper end of the downcomer 470 , it flows along the downcomer 470 and flows into the lower water tank 450 , so that the upper plate (430) The water depth of the upper part is adjusted.

The flow of water and gas of the wet treatment module 400, and the purification process of ozone, odor-causing substances, and harmful components will be described.

The gas discharged from the stirring outlet 312 of the plasma stirring module 300 flows into the wet treatment inlet 411 of the wet treatment module 400 .

The gas is mixed with the mist sprayed from the sprayer 480 at the wet treatment inlet 411 .

In addition, the gas collides with the distribution partition wall 412 of the wet treatment inlet 411 and spreads widely, flows into the wet treatment chamber 410 in a state of being spread through the distribution hole 413, and passes through the diffusion unit 415. Even the passages between the wet walls 420 at the edges of the wet processing chamber 410 are dispersed at a uniform density.

The gas introduced into the wet processing chamber 410 diffuses in all directions in the diffusion part 415 , passes through all passages formed between the wet walls 420 , and comes into contact with the surface of the wet walls 420 .

The water on the upper plate 430 flows along the surface of the wet wall 420 through the slit 431 , and descends while going back and forth from one side to the other side of the surface through the perforated hole 421 .

Since water has a strong affinity due to the hydrophilic coating agent 422 of the wet wall 420, the speed of descending down the wet wall 420 is slowed, and it can come into contact with more gas, and the gas dissolves in water. concentration increases.

Residual ozone, odor-causing substances, and harmful components contained in the gas are also dissolved in the water, and the water including contaminants falls on the lower plate 440 along the surface of the wet wall 420 .

Water falls into the lower water tank 450 through the lower through hole 441 formed in the lower plate 440 and is temporarily stored in the lower water tank 450 .

Ozone is reduced by circulating in the wet treatment chamber 410 through the transfer pump 460 without exposing it to the outside in consideration of the half-life of ozone.

Therefore, the gas that has passed between the wet walls 420 passes through the demister 230 in a state in which residual ozone, odor-causing substances, and harmful components are reduced, the moisture content is reduced, and the wet treatment chamber 410 through the wet treatment outlet 414 ) is discharged to the outside.

1 to 2 , the gas discharged from the wet treatment module 400 flows into the post-treatment filter module 500 and is finally filtered before being discharged to the outside.

The post-treatment filter module 500 is provided with a plurality of adsorbents for adsorbing harmful components such as acid/neutral/basic according to their function. However, since the filter can be borrowed in various ways according to need, the type is not limited.

In the harmful gas reduction system according to the present invention, the flow of harmful gas is set in one direction through the blower 100, and the harmful gas is pretreated by the blower 100 by the pretreatment filter module 200, the plasma stirring module 300, and the wet treatment It passes through the module 400 and the post-processing filter module 500 in turn.

In the pre-treatment filter module 200, foreign substances having a relatively large particle size are removed and moisture is removed, and while passing through the plasma stirring module 300, odor-causing substances and harmful components in the harmful gas are reduced through oxidation, and the wet treatment module ( 400), residual ozone in the gas, untreated odor-causing substances, and harmful components are further reduced, and after being filtered again in the post-treatment filter module 500, it is discharged to the outside.

Therefore, in the present invention, since the configuration responsible for each purification process can be modularized and separated, any one module can be easily separated and replaced, which is excellent in maintenance convenience, Convenience of installation is improved as changes can be made to the configuration.

100: blower
110: ventilation inlet 120: ventilation outlet
200: pre-processing filter module
210: filter inlet 220: pre-filter
230: demister 240: filter outlet
300: plasma stirring module
310: stirring chamber 311: stirring inlet 312: stirring outlet
320: flow line 321: gap section 322: first gap section 323: second gap section
324: Corner section
330: bulkhead 331: bent part 332: through hole
340: plasma sprayer 341: plasma generator 342: gas inlet
343: Pass road 344: Gas flow path 345: Fine hall
400: wet processing module
410: wet treatment chamber 411: wet treatment inlet 412: distribution bulkhead 413: distribution hole
414: wet treatment outlet 415: diffusion unit
420: wet wall 421: perforated hole 422: hydrophilic coating agent 423: media particles
430: top plate 431: slit 432: upper hole
440: lower plate 441: lower hole
450: lower water tank 460: transfer pump 461: upper pipe 462: lower pipe
470: Downstream 480: Sprayer 481: Water supply source
500: post-processing filter module

Claims (9)

In the reduction system for reducing harmful gas containing odor-causing substances and harmful components,
Plasma stirring module 300 for mixing harmful gas with plasma gas to reduce odor-causing substances in the gas;
and a wet treatment module 400 in which harmful components and ozone in the gas flowing in from the plasma stirring module 300 are reduced while passing between the wet walls 420 where water descends along the surface.

The plasma stirring module 300 is
A stirring chamber 310 in which the stirring inlet 311 through which harmful gas is introduced and the stirring outlet 312 through which the treated gas is discharged are formed, and a flow line 320 through which the gas moves is formed in the hollow body 310;
The agitation chamber 310 alternately protrudes from both sides of the inner side to form the flow line 320 in a zigzag shape, and a bent portion 331 with an end extending in the opposite direction to the gas flow is formed, and is perpendicular to the gas flow direction. a plurality of partition walls 330 disposed to form a; and
It is disposed at the front end of the barrier rib 330 in the gas movement path, a gas inlet 342 through which plasma gas is introduced is formed, and a gas flow path 344 through which the plasma gas moves is formed in the hollow inside. A plasma injector 340 in which a passage 343 through which noxious gas passes is formed, and a plurality of fine holes 345 through which plasma gas is ejected are formed in the gas passage 344;
Noxious gas reduction system.
According to claim 1,
The flow line 320 is
A gap section 321 moving between the adjacent partition walls 330 and a corner section 324 between the extended bent portion 331 of the partition wall 330 and the inner wall surface of the stirring chamber 310 are included.
Noxious gas reduction system.
3. The method of claim 2,
The gap section 321 is
A first gap section 322 formed with a narrow width between adjacent partition walls 330 is adjacent to each other, and a distance between the adjacent partition walls 330 is spaced apart to be wider than the first gap section 322 . It includes a second gap section 323 formed in width,
The gas passing through the first gap section 322 moves at high pressure and high speed,
The gas passing through the first gap section 322 passes through the corner section 324 and passes through the second gap section 323 at low pressure and low speed while entering the second gap section 323,
As the gas crosses the first gap section 322 and the second gap section 323 and passes repeatedly, the mixing of the harmful gas and the plasma gas is accelerated by the change in pressure.
Noxious gas reduction system.
3. The method of claim 2,
The gas passing through the gap section 321 collides with the bent portion 331 to form turbulence.
Noxious gas reduction system.
3. The method of claim 2,
A through hole 332 through which gas passes is formed on the surface of the partition wall 330,
The gas passing through the through hole 332 collides with the gas moving through the corner section 324 of the partition wall 330, and turbulence is generated.
Noxious gas reduction system.
6. The method of claim 5,
The amount of gas passing through the through hole 332 is less than the amount of gas passing through the corner section 324 of the partition wall 330 .
Noxious gas reduction system.
According to claim 1,
The wet processing module 400 is
a wet treatment chamber 410 having a hollow interior and having a wet treatment inlet 411 through which ozone-containing gas is introduced and a wet treatment outlet 414 through which gas is discharged;
a lower plate 440 spaced upward from the lower surface of the wet processing chamber 410 and having a plurality of lower through holes 441 formed therein;
a lower water tank 450 formed between the lower surface of the wet treatment chamber 410 and the lower plate 440 and into which water is introduced from the lower through hole 441;
an upper plate 430 disposed upwardly from the lower plate 440 and having a plurality of slits 431 formed in a gas flow direction;
a plurality of wet walls 420 having a lower end disposed on the lower plate 440 and protruding above the upper plate 430 through the slit 431 and having gaps with the slit 431; and
It is provided on one side of the wet treatment chamber 410 , a lower pipe 462 is provided below the lower plate 440 , and an upper pipe 461 is provided above the upper plate 430 , so that the lower water tank 450 is provided. ) of the transfer pump 460 for transferring the water to the upper part of the upper plate 430; including
Noxious gas reduction system.
8. The method of claim 7,
An upper through hole 432 is formed in the upper plate 430 so that the water at the upper portion of the upper plate 430 comes in contact with the gas while descending through the upper through hole 432,
The wet treatment inlet 411 is provided with a sprayer 480 for spraying water supplied from an external water supply source 481, so that the gas passing through the wet treatment inlet 411 is mixed with mist.
Noxious gas reduction system.
According to claim 1,
a blower 100 for sucking in harmful gas through the blower inlet 110 and discharging it to the blower outlet 120 ;
a pre-treatment filter module 200 for filtering the harmful gas flowing into the stirring inlet 311 of the plasma stirring module 300;
a post-treatment filter module 500 for reducing harmful substances in the gas discharged from the wet treatment module 400;
Noxious gas reduction system further comprising a.

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