KR100929611B1 - A burner for diesel particulate filter regeneration - Google Patents

Abstract

PURPOSE: A burner for diesel particulate filter regeneration is provided to induce the discharge with a metal ball formed on the surface of a conical shape positive electrode and to improve ignition by supplying a fuel mixed air to the metal ball. CONSTITUTION: A burner for diesel particulate filter regeneration comprises a fuel mixed air supply unit(140) and a metal ball(150). A nozzle(144) of a fuel air mixer feed port is connected to a reactive unit(121) and supplies the fuel mixed air to the reactive unit. The metal ball is located in the outer circumference of a positive electrode(130) and makes the fuel air mixer sprayed through the nozzle ignite.

Description

Burner for DPF Regeneration {A Burner for Diesel Particulate Filter Regeneration}

The present invention relates to a burner using an electric discharge such as ARC or plasma rotating along a flow as an ignition source, and more particularly, having a metal ball on the surface of a conical positive electrode where a discharge is generated, and precisely discharging through the metal ball. The present invention relates to a burner for regenerating a DPF which improves the ignition performance of the burner by inducing and supplying a fuel air mixer toward the metal ball.

Diesel cars are used in large vehicles because they have better fuel economy and output than gasoline vehicles, and are being applied to small vehicles gradually due to the development of combustion technology. However, unlike the gasoline engine, the fuel injected into the engine causes the temperature to rise due to the compression of the piston, causing combustion to cause self ignition, so that incomplete combustion occurs due to the incomplete combustion of the fuel and air in the process. This happens.

The soot is composed of small harmful particles, which are harmful to the human body, and it has been reported that the harmful particles caused by the diesel vehicle account for 40% of the total air pollution. Accordingly, various countries regulate the emission of exhaust gas, and in order to satisfy this, a soot filtration device is inserted into the exhaust passage to reduce the smoke.

However, the conventional soot filtration apparatus collects the soot by the catalytic filter and oxidizes the collected soot by the catalyst. However, when the liquid fuel is not atomized and vaporized, the engine output is reduced, and the fuel is reduced. Due to the very short period of high pressure injection in the combustion chamber, a large amount of harmful particulates are generated, and when there are many low-speed driving sections such as a heavy traffic section, the temperature of the exhaust gas is lowered, making it difficult to regenerate by the catalyst. have. If the catalyst is not functioning properly, the output is lowered due to the increase in exhaust back pressure, the fuel consumption is increased, and if such a phenomenon persists, not only the filter is damaged but also the engine is damaged.

In addition, according to the consumption of the engine oil and the use of additives there is a problem that the soot (soot, ash) is accumulated in the particle removal filter to bring about the hassle to clean the filter periodically.

In order to solve the above problems, a method of combining a natural regeneration method using a catalyst with a forced regeneration method using an electric heater, a burner, and a throttling has been proposed.

As an example, a diesel engine soot reduction device has been disclosed in Korean Patent Publication No. 2004-68792. The diesel engine smoke abatement device is equipped with an electric heater to activate the reaction of the catalyst to facilitate the natural regeneration occurs, but to increase the temperature of the exhaust gas, a large capacity of the battery is required to be practically applied. Since it is difficult and a separate device must be provided, there is a problem in that it is large in size and complicated and inferior in economic efficiency.

In order to solve the above problems, Korean Patent Publication No. 10-0828157 (name of the invention: a plasma reactor with improved fuel atomization performance and an exhaust gas reducing device equipped with the plasma reactor) has been disclosed. Shown.

1 is a cross-sectional view showing a conventional plasma reactor.

The plasma reactor shown in FIG. 1 is formed in the form of a hollow tube so as to form a portion of an exhaust filtration device for filtering particulate matter generated from an engine and an exhaust pipe communicating with the engine, and can be fastened with exhaust pipes on both sides. Exterior 110 is formed so that the fixing portion 111; A body 120 provided in parallel with the exterior 110 in the exterior 110 and having a hollow interior such that a reaction part 121 is formed; An electrode support part 122 formed perpendicular to the traveling direction of the exhaust gas of the body 120 to support the electrode 130; And a fuel supply unit 141 connected to a fuel storage unit and an outside of the body 120 to supply fuel, and an air supply unit formed to be adjacent to the fuel supply unit 141 outside the body 120 to supply air. 142 and the main feed hole 143 which communicates with the air supply unit 142 inside the wall surface of the body 120 to transfer air, and the fuel supply unit 141 and the main feed hole 143 communicate with the fuel supply unit. A fuel transported through the 141 is transported, but the auxiliary transport hole 144 to form a neck portion, and the injection port 145 in which the atomized fuel and air are injected by communicating with the main transport hole 143 and the reaction unit 121 It is formed fuel and air supply means 140; Characterized in that it is formed to include.

The plasma reactor shown in FIG. 1 and the soot filtration device using the same have the advantage of regenerating the soot filtration device at high temperature by burning fuel through the plasma reactor. However, the plasma reactor using the electrode 130 having a conical shape has a characteristic that the discharge is started at the narrowest portion of the electrode 130 and the body 120, the discharge is due to the processing error for each burner manufactured There is a problem in that the position is not the same, thereby failing to supply fuel air to the discharge position accurately, the ignition is lowered.

The present invention has been made in order to solve the above problems, an object of the present invention, by providing a metal ball in the electrode portion of the burner using an electric discharge, such as rotating ARC or plasma as the ignition source to precisely control the discharge start position The DPF regeneration burner improves the ignition performance of the burner by supplying a fuel air mixer accurately to the discharge part and supplying vaporized fuel by effectively evaporating it through exhaust heat and an additionally installed electric heater before igniting the mixer. In providing.

The burner for regeneration of the DPF of the present invention is a pipe having an internal hollow to form a portion of a soot filtration device 400 for filtering particulate matter generated from the engine 200 and an exhaust pipe 300 for communicating the engine 200. It is formed in the form, the outer side 110, the fixing portion 111 is formed so that both sides can be fastened with the exhaust pipe 300; A body 120 provided inside the exterior 110 and having a hollow inside, in which a reaction part 121 is formed; An electrode support part 122 provided inside the body 120; A positive electrode 130 having one end fixed to the electrode support part 122 and installed on the reaction part 121 of the body 120; And an electrode rod 123 for supplying power to the positive electrode 130. In the burner for DPF (Diesel Particulate Filter) regeneration, the fuel injection port 144 is formed to communicate with the reaction unit 121 to supply a fuel air mixture to the reaction unit 121 Air mixer supply unit 140; A metal ball 150 provided on an outer circumferential surface of the positive electrode 130 to ignite the fuel air mixer injected through the injection port 144; Characterized in that comprises a.

In addition, the positive electrode 130 is characterized in that the cross-sectional area is reduced toward the direction in which the exhaust gas proceeds from the point provided with the metal ball 150.

In addition, the fuel air mixer supply unit 140 is an air supply unit 141 to which air is supplied, a fuel supply unit 142 to supply fuel, and a circumferential direction of the body 120 between an outer wall and an inner wall of the body 120. A rotary hole 144 formed along the injection hole 144 for injecting fuel mixed with air passing through the rotary path 143 into the body 120; Characterized in that it comprises a.

In addition, the secondary air supply unit 160 is connected to the outside of the body 120 and the outlet end 161 is formed to communicate with the reaction unit 121 to supply air to the reaction unit 121; The secondary air supply unit 160 includes the outlet end such that the air supplied through the secondary air supply unit 160 rotates along the outer circumferential surface of the positive electrode 130 and flows in a direction in which the exhaust gas proceeds. 161 may be formed to be inclined at a predetermined angle with respect to the positive electrode 130.

In addition, the burner 100 includes an electric heater 170 installed in the fuel air mixer supply unit 140; Including, the electric heater 170 is characterized in that it is controlled by a PWM (Pulse Width Modulation) control method.

In addition, the body 120 is an enlarged tube 180 is formed at the rear end; Including, but the inlet 181 is characterized in that the expansion tube 180 is formed.

In addition, the expansion pipe 180 is characterized in that one side is formed in front of the end of the positive electrode 130 in the direction in which the exhaust gas flows.

DPF regeneration burner of the present invention by the configuration as described above is stable discharge occurs on the electrode surface where the metal ball is located, the fuel air mixture is accurately supplied to the position where the discharge occurs the effect that the ignition performance of the burner is improved There is.

In addition, the fuel mixed with air is vaporized while passing through the rotary passage existing in the burner body heated by the exhaust heat, thereby improving the ignition performance than when the fuel is supplied as a liquid fuel.

In addition, before the fuel mixed with air is transferred into the burner body, the fuel is first heated by an electric heater to ignite the fuel even under conditions in which the fuel cannot be sufficiently vaporized using exhaust heat such as during cold or engine idling. There is an effect to be improved.

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

2 is a schematic view of the exhaust gas reducing device equipped with the burner of the present invention. 3 is a perspective view of a burner of the present invention, FIG. 4 is a sectional view taken along line AA ′ of FIG. 3, and FIG. 5 is a sectional view taken along line BB ′ of FIG. 3. Figure 6 is an operating state of Figure 4, Figure 7 is an enlarged front view of the present invention.

First, referring to FIG. 2, an exhaust gas reducing device equipped with a burner 100 according to the present invention will be described first. The exhaust gas reducing device may be disposed on an exhaust pipe 300 to which exhaust gas generated from an engine 200 is moved. It is installed at the rear end of the burner 100 and the burner 100 to heat the exhaust gas, an oxidation catalyst 410 is formed at the front end, including a soot filtration device 400 for filtering particulate matter of the exhaust gas; Is formed.

Although the burner 100 illustrated in FIGS. 3 to 7 illustrates one form of the burner 100, the burner 100 may be formed in various ways and will be described in detail with reference to the accompanying drawings.

Referring to FIGS. 3 and 4, the burner 100 of the present invention has an exterior 110 forming a predetermined portion of the exhaust pipe 300, and a body 120 forming a reaction part 121 having a flame formed therein. ), A positive electrode 130 provided inside the body 120, a fuel air mixer supply unit 140 supplying a fuel air mixer into the body 120, and a metal ball provided on the surface of the positive electrode 130. 150 and a secondary air supply unit 160 to prevent a back flow of the fuel air mixer.

The burner 100 protrudes outside the exhaust pipe 300 except for the electrode rod 123 for applying a voltage to the fuel air mixer supply unit 140, the secondary air supply unit 160, and the positive electrode 130. Most of the configuration is provided inside the exterior 110 so that no part is formed. At this time, the exterior 110 is formed in the form of a hollow tube to form a predetermined portion of the exhaust pipe 300, both ends are formed with a fixing portion 111 for connection with both side exhaust pipe (300). .

That is, the exterior 110 is fixed to the exhaust pipe 300 through the fixing portion 111 of the exterior 110 by forming a body 120 and the like and forming a certain portion of the exhaust pipe 300 to exhaust. Gas flows, the burner 100 of the present invention is the exhaust pipe as much as the space in which the burner 100 is mounted without the cumbersome process of inserting and fixing a configuration such as the body 120 provided inside the exhaust pipe 300 Deleting (300), there is an advantage that can be easily mounted on the exhaust pipe 300 by using the fixing portion 111.

The body 120 is provided in the exterior 110, and the inside is hollow to form a space formed by the flame reaction part 121, the electrode support portion 122, the electrode 123 and the positive electrode 130 )

One end portion of the body 120 is formed in a direction perpendicular to the traveling direction of the exhaust gas to form an electrode support part 122 supporting the positive electrode 130. The body 120 is provided at the center of the exterior 110 to be provided with an exhaust gas flow portion 112 through which the exhaust gas flows between the body 120 and the exterior 110, and the body 120. ) May be supported through a separate support means, it may be supported by the fuel air mixer supply unit 140 or the electrode rod 123 to be described later. The body 120 includes a reaction part 121 in which a hollow is formed to form a flame complexed by a fuel air mixer. The inside of the body 120, that is, the reaction unit 121 may be any shape as long as the flame can be formed, in this embodiment described the body 120 in a cylindrical shape.

In the burner 100 of the present invention, the exhaust gas generated from the engine 200 flows into the exterior 110 and passes through the exhaust gas flow part 112 (between the body 120 and the exterior 110). Since it is moved to the exhaust gas connected to the soot filtration device 400, one side of the body 120 is formed so that the center is projected toward the exhaust gas upstream side, as shown in Figure 6 the exhaust flowed into one side of the exterior 110 Preferably, a gas (shown by an arrow) is guided to the exhaust gas flow part 112 along one side of the body 120.

One side of the body 120 may not only be convex in the center thereof, but also the exhaust gas flow portion between the body 120 and the exterior 110 without large flow resistance such as a cone or cone shape. Any form that can be derived from 112 may be formed without limitation.

The electrode support part 122 supports the positive electrode 130 and fixes the configuration of the electrode rod 123 for applying a voltage to the positive electrode 130. The electrode support part 122 is formed by the body 120. It is formed upstream of the exhaust gas flow so that the flame by the positive electrode 130 is formed in the same direction as the flow direction of the exhaust gas. When the electrode support part 122 is formed on the opposite side (exhaust gas flow downstream) and the flow of the exhaust gas and the flame of the positive electrode 130 are formed oppositely, the exhaust gas does not flow smoothly, and the exhaust gas does not flow smoothly. Since it is difficult to form the flame by the progress of the exhaust gas is difficult to properly heat, the burner 100 of the present invention so that the flame direction of the positive electrode 130 is formed in the same flow direction of the exhaust gas. The electrode support 122 may be formed of an insulating material such as ceramic to insulate the body 120 from the positive electrode 130. The electrode rod 123 is a stick shape is screwed with the positive electrode 130 without a separate wiring process. This has the effect of preventing disconnection due to vibration and friction. In this case, the electrode rod 123 is preferably formed with an electrode cover 124 surrounding the outer circumferential surface of a material such as ceramic for insulation with the body 120.

The positive electrode 130 is formed in the longitudinal direction inside the body 120. The positive electrode 130 may be made of steel, but any material may be used as long as the material has excellent electrical conductivity and strong heat resistance. One side of the positive electrode 130 is fixed to the electrode support 122 and is connected to the electrode 123 to receive power from the electrode 123. The other side of the positive electrode 130 is formed by being exposed to the reaction part 121. The positive electrode 130 may have a cross-sectional area that decreases toward the exhaust gas. The discharge occurs at the body 120 closest to the surface of the positive electrode 130 when power is applied to the positive electrode 130. The discharge starts at the neck of the positive electrode 130, and has a swirl shape. To make it possible. The neck of the positive electrode 130 may be a portion having the thickest diameter on the positive electrode 130, and may be referred to as a point where the distance from the body 120 is closest to the outer circumferential surface of the positive electrode 130.

At this time, the metal ball 150 may be provided on the surface of the positive electrode 130 to more accurately control the point where the discharge starts. More specifically, the positive electrode 130 may be provided on the outer circumferential edge of the neck. The metal ball 150 may be disposed at any one of the outer circumferences of the neck of the positive electrode 130 because the discharge point of the neck of the positive electrode 130 cannot be accurately controlled due to manufacturing errors. 150 to induce a discharge. In addition, since the metal ball 150 is located closest to the body 120 on the surface of the positive electrode 130, the discharge is stable and accurate on the surface of the positive electrode 130 where the metal ball 150 is located. It happens. The metal ball 150 is preferably provided close to the point where the fuel is injected in the outer peripheral edge of the neck of the positive electrode (130). This is because the closer the distance is, the more advantageous it is to accurately inject the injected fuel to the discharge point, and the ignition performance is lowered as the fuel injection point and the discharge point are farther. The metal ball 150 forms a hemispherical shape. As the positive electrode, the metal ball 150 may be made of steel, but any material may be used as long as it has excellent electrical conductivity and high heat resistance. It is apparent that the metal ball 150 may have any shape as long as the metal ball 150 is not only hemispherical but also has a shape capable of inducing a discharge such as a cone or a polygonal pyramid.

The positive electrode 130 preferably decreases in cross-sectional area from the point where the metal ball 150 is provided toward the other side, that is, the direction in which the exhaust gas proceeds. That is, the other side of the positive electrode 130 preferably forms a parabola when the cross section is cut in the longitudinal direction. This is to allow the discharge started from the metal ball 150 to have a swirl shape like the spiral arrow started from the metal ball 150 shown in FIG. 6.

4 and 5, the fuel air mixer supply unit 140 is formed at one side of the body 120 to supply fuel and air into the reaction unit 121. The supply unit 141, the fuel supply unit 142 for supplying fuel, the rotary passage 143 formed inside the wall of the body 120, connecting the rotary passage 143 and the reaction unit 121 to fuel and air It is formed to include the injection hole 144 for spraying the block 145 formed in the rotary passage 143.

The fuel supply unit 142 connects a fuel storage unit (not shown) and the outside of the body 120 to supply fuel, and the air supply unit 141 is connected to the fuel supply unit 142 outside the body 120. It is formed adjacent to supply air, the amount of fuel and air supplied from the fuel supply unit 142 and the air supply unit 141 is controlled through a control unit (not shown) and mixed with the air controlled by the control unit The supplied fuel is supplied to the rotary passage 143. The air supplied through the air supply unit 141 may be oxygen oxidizing the fuel or air including the oxygen. Fuel mixed with air supplied through the fuel supply unit 142 and the air supply unit 141 is vaporized while passing through the rotary passage 143 and discharged through the injection hole 144.

The rotary passage 143 is a space in which the fuel air mixer is transported inside the wall forming the body 120, and more specifically, the circumference of the body 120 between the outer wall and the inner wall of the body 120. It can be formed along the direction. This allows the fuel mixed with air to pass through the wall surface of the body 120 heated through the exhaust gas, thereby vaporizing the fuel mixed with air to increase the ignition performance than when supplied as a liquid fuel, and the body ( Since the cross section of the 120 forms a circle, it is for generating a rotational force to the fuel and injecting it through the injection hole 144.

The rotary passage 143 is preferably formed to guide in one direction in transferring the fuel air mixer to the injection port (144). However, since it takes time and cost to manufacture the rotary passage 143 in one direction in the body 120, the outer peripheral surface of the body 120 is cut along the circumference to form a space, that is, a groove thereon. The rotary cover 143 is formed by wrapping the ring-shaped cover 125 and welding the same. Since the rotary passage 143 formed in the above manner forms a circle inside the body 120, the fuel mixed with the introduced air may be bisected and transferred to the injection hole 144. In this case, the movement speed of the fuel is reduced, and the fuel flows only in a relatively fast flow path, and thus a fuel remaining section may occur. In the above configuration, in order to guide the fuel mixed with air in one direction, as shown in FIG. 5, the block 145 is formed at any one of the injection holes 144 at the inlet side of the rotary passage 143. The fuel can be guided in one direction. However, since it is advantageous to make the path of the rotary passage 143 as long as possible to vaporize the fuel mixed with air, the inlet side and the injection port 144 are formed as close as possible and the block 145 is formed in the close section. For example, it is preferable to guide the fuel air mixer to another section which is formed relatively long.

At this time, the injection hole 144 is preferably made to face the metal ball 150. This is to inject the vaporized fuel toward the metal ball 150 is discharged to improve the ignition performance of the fuel supplied from the fuel air mixer supply unit 140.

4 and 6, the burner 100 of the present invention may be further formed with a secondary air supply unit 160 connected to the outside of the body 120 to supply air. The secondary air supply unit 160 includes an outlet end 161 for injecting air from the outside and spraying it into the body. The secondary air supply unit 160 serves to guide the flame complexed in the metal ball 150 to be formed in the exhaust gas flow direction, and supplies oxygen necessary for ignition. To this end, the secondary air supply unit 160 is preferably formed between the neck of the positive electrode 130, that is, the point where the metal ball 150 is formed and the electrode support 122. In addition, the outlet end 161 may be formed to be inclined at a predetermined angle in the vertical direction of the body 120 so that the incoming air can be moved toward the positive electrode. The air discharged through the outlet end 161 is shown by the arrow in FIG.

In the vertical direction of the body 120 means that when looking at the surface perpendicular to the flow direction of the exhaust gas, the outlet end 161 is not the direction of the central axis of the body 120 It is formed to be inclined at an angle so that the fuel and air injected through the outlet end 161 flows while rotating around the positive electrode 130.

Referring to FIG. 4, the fuel air mixer supply unit 140 may include an electric heater 170. The electric heater 170 may be provided in any manner as long as it is provided inside the fuel air mixer supply unit 140 and receives power to heat air and fuel flowing in the fuel air mixer supply unit 140. The electric heater 170 is preferably formed on the upstream side of the fuel air mixer supply unit 140. The electric heater 170 serves to vaporize the fuel by heating the incoming air and fuel. This is for use in the case where it is difficult to vaporize the fuel using the rotary passage 143 due to the low temperature of the exhaust gas during the initial start-up or idling. To this end, the electric heater 170 may use a pulse width modulation (PWM) control scheme to sense the temperature of the exhaust gas and control the operation according to the numerical value.

4, 6, and 7, an enlarged pipe 180 is formed at an end of the exhaust gas downstream side of the body 120. The enlarged tube 180 is formed to be larger than the cross-sectional diameter of the body 120 toward the end. That is, the cross section of the expansion tube may form a tapered shape. This prevents the exhaust gas introduced into the exterior from being introduced into the body 120, that is, the reaction unit 121, so that particulate matter (PM) included in the exhaust gas is not accumulated in the reaction unit 121. The effect of insulation is excellent, there is an effect that can reduce the malfunction of the burner (100).

At this time, the inlet hole 181 may be formed radially on the inclined surface of the enlarged tube 180 spaced apart from the center axis by a predetermined distance. This is because only the oxygen supplied through the fuel air mixer supply unit 140 and the secondary air supply unit 160 is insufficient in the amount of oxygen for ignition and combustion in the reaction unit 121, a part of the exhaust gas to the inlet hole 181 This is to introduce into the reaction unit 121 through). The flame generated through combustion in the reaction unit 121 is more actively formed by combining with oxygen contained in the exhaust gas. In addition, oxygen is consumed through the inlet hole 181 to reduce the exhaust gas also occurs.

In addition, the one side of the expansion tube 180 is formed on the body 120) is formed in the front in the direction in which the exhaust gas flows from the end of the positive electrode 130 to the inlet hole 181 It can maximize the improvement of combustion performance.

The terms or words used in this specification and claims are not to be construed as limiting in their usual or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best explain their invention in the best way possible. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that the present invention. Therefore, the embodiments described in the present specification and the configuration shown in the drawings are only the most preferred embodiments of the present invention, and do not satisfy all of the technical idea of the present invention, and various equivalents may be substituted for them at the time of the present application. It should be understood that there may be water and variations.

1 is a cross-sectional view showing a conventional plasma reactor

Figure 2 is a schematic diagram of the exhaust gas reducing device equipped with a burner of the present invention

3 is a burner perspective view of the present invention

4 is a cross-sectional view taken along line AA ′ of FIG. 3.

5 is a cross-sectional view taken along line BB ′ of FIG. 3.

6 is an operating state of FIG.

7 is an enlarged front view of the present invention

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

100: burner

110: appearance 111: fixing part

112: exhaust gas flow section

120: body 121: reaction part

122: electrode support 123: electrode

124: electrode cover

130: positive electrode

140: fuel air mixer supply unit 141: air supply unit

142: fuel supply unit 143: rotary passage

144: injection hole 145: block

150: metal ball

160: secondary air supply unit

170: electric heater

180: enlarged tube 181: inlet hole

Claims (7)

It is formed in the form of a hollow tube to form a portion of the exhaust filter 400 for filtering particulate matter generated from the engine 200 and the exhaust pipe 300 for communicating the engine 200, both sides of the exhaust pipe Appearance 110, the fixing portion 111 is formed to be fastened to the 300; A body 120 provided inside the exterior 110 and having a hollow inside, in which a reaction part 121 is formed; An electrode support part 122 provided inside the body 120; A positive electrode 130 having one end fixed to the electrode support part 122 and installed on the reaction part 121 of the body 120; And an electrode rod 123 for supplying power to the positive electrode 130. In the burner for DPF (Diesel Particulate Filter) regeneration comprising: A fuel air mixer supply unit 140 formed such that an injection hole 144 communicates with the reaction unit 121 for supplying a fuel air mixer to the reaction unit 121; A metal ball 150 provided on an outer circumferential surface of the positive electrode 130 to ignite the fuel air mixer injected through the injection hole 144; Burner for reproducing DPF, characterized in that comprises a. The method of claim 1, The positive electrode 130 is a burner for regenerating DPF, characterized in that the cross-sectional area is reduced from the point where the metal ball 150 is provided toward the exhaust gas proceeds. The method according to claim 1 or 2, The fuel air mixer supply unit 140 is provided along the circumferential direction of the body 120 between an air supply unit 141 to which air is supplied, a fuel supply unit 142 to supply fuel, and an outer wall and an inner wall of the body 120. And a spraying hole (144) for injecting fuel mixed with air passing through the rotating passage (143) and the air passing through the rotating passage (143) into the body (120). The method of claim 3, wherein A secondary air supply unit 160 which is connected to the outside of the body 120 and is formed such that an outlet end 161 communicates with the reaction unit 121 to supply air to the reaction unit 121; Including but not limited to: The secondary air supply unit 160 has the outlet end 161 so that the air supplied through the secondary air supply unit 160 rotates along the outer circumferential surface of the positive electrode 130 and flows in a direction in which exhaust gas proceeds. Burner for reproducing DPF, characterized in that formed to be inclined at a predetermined angle with respect to the positive electrode (130). The method of claim 4, wherein The burner 100 includes an electric heater 170 installed in the fuel air mixer supply unit 140; Including but not limited to: The electric heater 170 is a burner for reproducing DPF, characterized in that the control by PWM (Pulse Width Modulation) control method. The method of claim 5, The body 120 is an enlarged tube 180 is formed at the rear end; Including, Burner for regenerating the DPF, characterized in that the inlet hole 181 is formed in the expansion pipe (180). The method of claim 6, The enlarged tube 180 is one side of the DPF regeneration plasma burner, characterized in that formed in front of the end of the positive electrode 130 in the direction in which the exhaust gas flows.

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