WO2018070571A1

WO2018070571A1 - Harmful substance elimination apparatus using plasma

Info

Publication number: WO2018070571A1
Application number: PCT/KR2016/011572
Authority: WO
Inventors: 김유만; 진희성
Original assignee: (주)수도프리미엄엔지니어링
Priority date: 2016-10-10
Filing date: 2016-10-14
Publication date: 2018-04-19
Also published as: KR101809243B1

Abstract

A harmful substance elimination apparatus using plasma can comprise: a plurality of ground electrode plates which have a plurality of first through-holes, are grounded, and are arranged so as to be spaced from each other; an anode plate which is arranged between the plurality of ground electrode plates so as to be respectively spaced from the ground electrode plates, has a plurality of second through-holes, and receives an anode; and a discharge initiating unit, which is provided at the second through-holes, generates plasma by respectively discharging the anode, which is received through the anode plate, to the first through-holes of the ground electrode plates, so as to eliminate harmful substances included in gas having passed through the first through-holes, and allows the gas to pass therethrough.

Description

Harmful substance removal device using plasma

The present invention relates to an apparatus for removing harmful substances using plasma.

In general, environmental pollution prevention facilities are installed in various discharge facilities that pollute the environment to minimize harmful substances emitted from each facility.

Although there are many complaints about odor among the harmful substances, there is a problem that the standards are not clear because odor measuring techniques and legal regulations are not properly established, but recently, regulations on odor causing substances have been gradually strengthened. .

Odor is a sensory pollutant that causes unpleasant feelings and serious damages to the mental health of people's living. However, the existing odor prevention law does not improve effective odors, so it has been a chronic environment due to odor problems. Conflict and damage are repeated.

Odor removal technology is mainly used for VOCs removal technology. Commercial or developed control technologies include direct incineration, catalytic incineration, adsorption, condensation, biofilm, membrane separation, UV and photocatalytic reactions, and plasma reactions. As a tailor-made odor removal technology that can effectively respond to the material has shown a limit to the application.

In particular, the plasma reaction technique is effective for hardly decomposable materials, and the application method varies depending on the object, but there is a problem in terms of practicality due to the poor performance of other various technologies.

Plasma refers to a state of a gas having a charge, and can be obtained through electric discharge generated by applying a high voltage to two electrodes that are artificially separated from each other.

Korean Patent No. 10-0194975 (Exhaust gas purifying apparatus using a porous porous needle corona discharge device) is disclosed as a conventional technique for removing harmful substances using plasma.

The device is provided with a needle and a hole in the high voltage electrode plate, and a hole is provided in the ground electrode plate. Therefore, when a high voltage is applied to the high voltage electrode plate, discharge occurs at the tip of the needle, and the generated plasma is collected at the hole edge of the ground electrode plate. In this process, the harmful substances passing through the holes of the ground electrode plate pass through the plasma state, and the harmful substances may be removed by the chemical reaction.

In order to increase the efficiency of removing toxic substances, it is necessary to increase the amount of plasma generated and to increase the number of needles. However, since the prior art as described above has a structure in which holes and needles are formed together in the high pressure electrode plate, there is a limit in that it is difficult to increase the number of needles in the limited area of the high pressure electrode plate. There is a problem that cannot be removed.

An embodiment of the present invention is to provide an apparatus for removing harmful substances using plasma that can increase the amount of plasma generated to increase the efficiency of removing harmful substances.

According to one embodiment of the present invention, a plurality of first through-holes are formed, a plurality of grounded electrode plates are grounded, spaced apart from each other; A positive electrode plate disposed between the ground electrode plates so as to be spaced apart from the ground electrode plates, respectively, and having a plurality of second through holes formed therein, the positive electrode plates being provided with both electrodes; And a gas installed in the second through hole and discharged from the first electrode provided through the positive electrode plate to the first through hole of the ground electrode plate, thereby generating a plasma. There may be provided an apparatus for removing harmful substances using a plasma, including a discharge initiation unit for removing the harmful substances and allowing the gas to pass therethrough.

In addition, the discharge start unit is detachably installed in the second through-hole, the body portion formed with a plurality of gas holes so that the gas passes through and are formed to protrude sharply at both ends of the body portion, respectively, the electrode It may include a needle to generate a plasma by discharging the first through-hole.

In addition, a threaded portion is formed along the circumferential direction on an outer surface of the body portion so that the body portion can be detachably installed in the second through hole.

In addition, the body portion is made of a hollow structure, the inside of the hollow structure, the gas hole is formed on one side and the other side with respect to the positive electrode plate, respectively, the gas flowed into the body portion through the gas hole formed on one side It may be discharged to the outside of the body portion through the gas hole formed on the other side.

In addition, the needle may be disposed to face the center of the first through-hole.

In addition, the needles may be disposed on one side and the other side of the two electrode plates, respectively, so that the needles face the first through-holes formed in two different ground electrode plates.

According to the embodiment of the present invention, since the number of needles for generating plasma in both electrode plates having the same area can be maximized, the efficiency of removing harmful substances can be doubled.

1 is a perspective view schematically showing an apparatus for removing harmful substances using plasma according to an embodiment of the present invention;

2 is an exploded cross-sectional view of an apparatus for removing harmful substances using plasma according to an embodiment of the present invention;

Figure 3 is a side view showing the discharge start unit in the harmful material removal apparatus using a plasma according to an embodiment of the present invention,

4 is an operational state diagram of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation according to the embodiment of the present invention. The following description is one of several aspects of the invention that can be claimed, and the following description may form part of the detailed description of the invention.

However, in describing the present invention, a detailed description of known configurations or functions may be omitted to clarify the present invention.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

Terms including ordinal numbers such as first and second may be used to describe various components, but the components are not limited by the terms. These terms are only used to distinguish one component from another.

When a component is said to be 'connected' or 'connected' to another component, it may be directly connected to or connected to that other component, but it may be understood that another component may exist in between Should be.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention.

1 is a perspective view schematically showing an apparatus for removing harmful substances using plasma according to an embodiment of the present invention, FIG. 2 is an exploded sectional view of an apparatus for removing harmful substances using plasma according to an embodiment of the present invention, and FIG. Is a side view showing a discharge start unit in the apparatus for removing harmful substances using plasma according to an embodiment of the present invention.

1 and 2, the apparatus for removing harmful substances using plasma according to an embodiment of the present invention may include a plurality of ground electrode plates 100, a positive electrode plate 200, and a discharge start unit 300. Can be.

The fact that an embodiment of the present invention includes the above-listed components does not mean that they consist only of these components, but basically includes these components. In addition to the other components (for example, well-known devices for removing harmful substances using plasma) Technology), but the detailed description is omitted since it may obscure the subject matter of the present invention.

In this embodiment, one positive electrode plate 200 is spaced apart between two ground electrode plates 100 and is disposed in one or multiple stages (for example, at least two or more stages) as necessary to induce odor therein. Electrical discharge generated between the positive electrode plate 200 and the ground electrode plate 100 by allowing a gas containing at least one of substances and volatile organic compounds (VOCs) to be passed therethrough. It is possible to provide a device capable of purifying and removing the harmful substances contained in the gas through the plasma generated by the.

1 and 2, the ground electrode plate 100 may be provided in plurality (at least two), each ground electrode plate 100 may be formed in a flat plate shape.

The ground electrode plate 100 is not particularly limited in shape, but may be formed in a circular shape or may be formed in a quadrangle as shown in FIG. 1.

A plurality of first through holes 110 spaced at regular intervals may be formed in the ground electrode plate 100. Gases containing harmful substances may pass through the first through holes 110 in the process of moving along a predetermined path. In this case, the ground electrode plate 100 may be grounded to stand the negative electrode.

In addition, the positive electrode plate 200 is disposed between the plurality of ground electrode plates 100, wherein the positive electrode plate 200 is spaced apart from the ground electrode plate 100 by a predetermined distance.

A plurality of second through holes 210 may be formed in the positive electrode plate 200, and the second through holes 210 are provided in the same number as the first through holes 110 and the first through holes 110. It may be formed at a position corresponding to the.

The positive electrode plate 200 may receive a positive electrode from a separate power supply unit (not shown) to stand the positive electrode. In addition, the positive electrode plate 200 may be provided in a size and shape corresponding to the ground electrode plate 100.

On the other hand, the discharge start unit 300 may be installed in the second through hole 210 of the positive electrode plate 200, accordingly, the discharge start unit 300 corresponds to the number of the second through hole (210) The number can be provided.

The discharge start unit 300 may generate plasma by discharging both electrodes provided through the positive electrode plate 200 to the first through hole 110 of the ground electrode plate 100, respectively. Hazardous substances contained in the gas passing through the first through hole 110 may be removed by the generated plasma.

In addition, the discharge start unit 300 may have a structure in which a gas passes so that the gas can pass through both electrode plates 200.

Specifically, as shown in FIG. 3, the discharge start unit 300 may include a body 310 and a needle 320.

The body portion 310 may be formed in a substantially cylindrical shape to form the overall appearance of the discharge start unit 300. The body 310 may be detachably installed in the second through hole 210, and a plurality of gas holes 311 may be formed to allow gas containing harmful substances to pass therethrough.

The body 310 may have a hollow structure in which the inside thereof is empty, and the plurality of gas holes 311 may be formed at one side and the other side of the electrode plate 200, respectively, so that the gas is formed at one side. The gas may flow into the body 310 through the hole 311 and be discharged to the outside of the body 310 through the gas hole 311 formed at the other side.

The body portion 310 may be formed with a screw portion 312 in the circumferential direction on the outer surface of the body portion 310 to be detachably installed in the second through hole (210). Threads may be formed on the inner circumferential surface of the second through hole 210 to correspond to the screw portion 312 of the body portion 310.

In addition, the needle part 320 is formed at both ends of the body part 310 so as to protrude sharply, and discharges both electrodes provided from the positive electrode plate 200 to the first through hole 110 to substantially discharge the plasma. It can play a role of generating.

The electricity discharged from the needle part 320 spreads to the edge (inner circumferential surface) of the first through hole 110 to form a substantially conical region, in which plasma is generated by electric discharge, and this region is a hazardous substance. Hazardous substances can be removed as this gas passes through. Since the principle of the removal of harmful substances by the plasma is generally known, the description thereof is omitted.

Here, the needle 320 may be disposed to face the center of the first through-hole (110). In addition, the needle part 320 is disposed on one side and the other side of the electrode plate 200, respectively, so that each needle part 320 is formed on two different ground electrode plates 100, the first through hole 110. It may be arranged to face.

As described above, the structure of this embodiment having two ground electrode plates 100 and one positive electrode plate 200 shown in FIG. 1 is a single-stage structure which is the most basic of the present invention. Accordingly, the basic structure can be arranged in two or more stages, thereby further increasing the removal efficiency of harmful substances. Even in the case of arranging in multiple stages as described above, the positive electrode plates 200 may be disposed between the ground electrode plates 100.

Hereinafter, the operation of the present invention will be described with reference to FIG.

4 is an operation state diagram of the present invention. Referring to FIG. 4, a gas containing harmful substances moving in a predetermined traveling direction passes through the first through-hole 110 of the ground electrode plate 100 while passing through the needles ( It passes through the plasma (p) generated by the electricity discharged in 320. In this process, the harmful substances contained in the gas are first removed by the plasma (p) and then flow into the discharge start unit 300.

The gas introduced into the gas through the gas hole 311 formed at one side of the discharge start unit 300 moves through the hollow formed in the body 310 of the discharge start unit 300 to move both electrode plates 200. Passed through the other gas hole 311 formed on the other side of the discharge start unit 300 is discharged to the outside.

The gas discharged from the discharge initiation unit 300 passes through the first through hole 110 formed in the other ground electrode plate 100 again. In this case, the harmful substances remaining in the gas by the plasma p are secondary. Can be removed.

As mentioned above, although this invention was demonstrated using the preferable embodiment, the scope of the present invention is not limited to the specific embodiment described, The person of ordinary skill in the art is not limited within the scope of this invention. Substitution and modification of the components are possible, which also belongs to the rights of the present invention.

Claims

A plurality of ground electrode plates having a plurality of first through holes formed therein, grounded and spaced apart from each other;

A positive electrode plate disposed between the ground electrode plates so as to be spaced apart from the ground electrode plates, respectively, and having a plurality of second through holes formed therein, the positive electrode plates being provided with both electrodes; And

It is installed in the second through hole, and discharges the positive electrode provided through the positive electrode plate to the first through hole of the ground electrode plate respectively to generate a plasma contained in the gas passing through the first through hole And a discharge initiation unit for removing the harmful substances and allowing the gas to pass therethrough.
The method of claim 1,

The discharge start unit,

A body part detachably installed in the second through hole and formed with a plurality of gas holes to allow the gas to pass therethrough; And

Each of the body portion is formed to protrude sharply, and includes a needle for generating a plasma by discharging the both electrodes to the first through-holes, apparatus for removing harmful substances using plasma.
The method of claim 2,

The outer surface of the body portion is formed with a screw portion in the circumferential direction, the body portion is detachably installed in the second through hole, the apparatus for removing harmful substances using plasma.
The method of claim 2,

The body portion is made of a hollow structure that is empty inside,

The gas hole is formed on one side and the other side of the positive electrode plate, respectively, the gas is introduced into the body portion through the gas hole formed on one side and discharged to the outside of the body portion through the gas hole formed on the other side Harmful substance removal device using.
The method of claim 2,

The needle is disposed to face the center of the first through hole, the apparatus for removing harmful substances using plasma.
The method of claim 5,

The needle portion is disposed on one side and the other side with respect to the two electrode plate is disposed so that the needle portion toward the first through-hole formed in two different ground electrode plate, apparatus for removing harmful substances using plasma.