WO2010011031A2 - Plasma reaction apparatus for a dpf system - Google Patents

Plasma reaction apparatus for a dpf system Download PDF

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Publication number
WO2010011031A2
WO2010011031A2 PCT/KR2009/003571 KR2009003571W WO2010011031A2 WO 2010011031 A2 WO2010011031 A2 WO 2010011031A2 KR 2009003571 W KR2009003571 W KR 2009003571W WO 2010011031 A2 WO2010011031 A2 WO 2010011031A2
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WO
WIPO (PCT)
Prior art keywords
air
reaction chamber
power supply
hole
supply unit
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PCT/KR2009/003571
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French (fr)
Korean (ko)
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WO2010011031A3 (en
Inventor
송영래
송일환
조형제
Original Assignee
에이치케이엠엔에스(주)
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Publication of WO2010011031A2 publication Critical patent/WO2010011031A2/en
Publication of WO2010011031A3 publication Critical patent/WO2010011031A3/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/38—Arrangements for igniting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/01—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust by means of electric or electrostatic separators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/027—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means
    • F01N3/0275—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means using electric discharge means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/05—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of air, e.g. by mixing exhaust with air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/28—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a plasma reactor

Definitions

  • the present invention relates to a plasma reactor for a DPF system, and more particularly, in order to remove particulate matter contained in exhaust gas generated in a diesel engine more quickly and effectively, to secure stability of initial ignition and to improve vaporization performance.
  • the present invention relates to a plasma reactor for a DPF system that prevents incomplete combustion and ensures durability of a device used in a harsh environment.
  • the diesel particulate filter trap (DPF) system is a filter for filtering soot particles and a diesel vehicle after-treatment system for oxidizing the collected soot when a certain amount of soot is collected in the filter, and in the process of oxidizing the soot.
  • a separate regeneration mechanism is required. Regeneration methods for stable use of such a DPF system may be classified into a passive regeneration method and a passive regeneration method.
  • the natural regeneration method is a method of raising the temperature of the exhaust gas by the oxidation catalyst added in the soot filtration filter, and continuously oxidizing soot using oxygen (O 2 ) and nitrogen dioxide (NO 2 ) in the exhaust gas. .
  • the forced regeneration method uses a forced heating means to raise the temperature of the exhaust gas to the oxidizable temperature of the soot when a certain amount of soot is collected in the filter, thereby continuously regenerating the soot filtration filter at an appropriate time. This is a means to maintain the performance of the DPF system and the performance of the vehicle.
  • a plasma reactor (burner device), a catalytic burner, an electric heater, and the like are used.
  • the plasma reactor uses a discharge phenomenon of plasma to heat, reform, and ignite fuel. By generating the flame through the steps, it is possible to minimize the possible heat loss by directly burning the diesel fuel used as a power source in the vehicle directly inside the exhaust pipe.
  • the present invention is an improvement of the conventional plasma reactor for DPF systems, first described the conventional plasma reactor as follows.
  • FIG. 1 is a cross-sectional view showing the configuration of a plasma reactor 10 for a conventional DPF system, the conventional plasma reactor 10 is mounted on one side of the exhaust gas discharge pipe (not shown), the air pollutant contained in the exhaust gas It is used to burn.
  • the conventional plasma reactor 10 forms a hollow reactor 12 having a discharge port 18, a gas inlet 15 formed at one side thereof, and a bottom surface of the reactor 12. And a ceramic insulator having a mixing chamber 16a formed therein which communicates with the gas inlet 15 and communicates with the inside of the reactor 12 through an inlet hole 16b formed in the reactor 12.
  • the plasma reactor 10 has the following problems.
  • the liquid fuel introduced into the endothermic chamber 17 through the liquid fuel injection means 14a and 14b is not smoothly ejected into the reactor 12, and is accumulated in the mixing chamber 16a. The phenomenon occurred and the initial ignition could be delayed.
  • the liquid fuel introduced into the endothermic chamber 17 is injected into the reactor 12 through the inlet hole 16b formed in the reactor 12 through the mixing chamber 17.
  • the vaporization performance of the fuel is extremely degraded, resulting in poor ignition, and at the same time, when the plasma reactor 10 is set up or installed in a horizontal direction with the ground as shown in FIG. )
  • breakage of the ceramic insulator 13 occurs in the interconnection part by direct coupling of the electrode 11 and the ceramic insulator 13 supporting the electrode 11, and a plurality of liquid fuels are formed in the ceramic insulator 13. And since there is a movement path of air there was a big problem of the potential impact of breakage.
  • connection is poor when connecting from one external contact through the communication hole of the ceramic insulator 13 to one contact of the internal electrode 11 As a result, stable power supply is limited, and liquid fuel and air leak to the outside of the reactor and to the high voltage applying part through both connection parts and connection communication parts, which may cause serious safety problems.
  • the reactor 12 and the ceramic insulator for processing the mixing chamber 16a and the inlet hole 16b, which are passages of liquid fuel and air, or the processing of a screw hole for fastening the electrode and the ceramic insulator 13) 13 had to go through a number of processing steps there was a problem that the manufacturing cost is increased.
  • the present invention has been made to solve the above problems, by optimizing the flow and injection position of the fuel and air, it is possible to prevent the liquid fuel that is not completely burned flow into the exhaust pipe, the position and direction of the reactor It is an object of the present invention to provide a plasma reactor capable of generating flames immediately upon fuel and air injection.
  • each component is ensured to enable normal operation in a harsh environment where the high temperature and high pressure or the external shock in which the plasma reactor is used, and the flame gas ignited inside the device is discharged from the engine. It is another object of the present invention to provide a plasma reactor that provides a combustion rate to completely oxidize the air pollutant contained therein.
  • Plasma reaction apparatus for a DPF system of the present invention for achieving the above object, an electrode for forming a plasma discharge phenomenon when a high voltage is applied, a power supply connected to the lower end of the electrode to supply a high voltage, the power supply unit A through hole inserted through the center is provided in the center to insulate the power supply unit by the insertion of the power supply unit, and a through hole in which the insulation member is inserted through the center is provided on one side of the outer peripheral surface of the insulating member.
  • the discharge portion including a body portion formed with a screw thread A; and is provided in a cylindrical shape having a through-hole formed in the center portion, the screw thread B is formed on the inner peripheral surface of the lower portion, the room in the through hole
  • One side part of the whole is inserted into the discharge part by rotational coupling of the screw line A and the screw line B
  • a reaction chamber coupled to one side of the reaction chamber and fixedly coupled to one side of the reaction chamber, the fuel supply unit for injecting fuel into the reaction chamber and the outer circumferential surface of the reaction chamber are installed to surround the reaction chamber.
  • An air chamber in which a passage is formed along an outer circumferential surface of the reaction chamber; And an air inlet A fixedly coupled to one side of the air chamber to supply air to the inside of the air chamber.
  • At least one air hole is formed on a wall surface of the reaction chamber corresponding to the air chamber, and the air introduced into the air chamber is provided to be introduced into the reaction chamber through the air hole.
  • At least one primary gasket may be provided at a portion at which the insulating member and the body are fastened, and at least one secondary gasket may be provided at a portion at which the body and the reaction chamber are fastened.
  • one side of the fuel supply unit is provided with an air inlet B for introducing external air, and the fuel introduced into the fuel supply unit and the air introduced into the air inlet B are mixed to be introduced into the reaction chamber. It is preferable.
  • the air hole is preferably formed in an oblique line in the wall surface of the reaction chamber, so that the air introduced from the air chamber is rotated and introduced into the reaction chamber.
  • a predetermined space is formed between the inner surface of the through hole of the insulating member and the outer circumferential surface of the power supply unit, and the predetermined space may be filled with a heat resistant powder for preventing leakage.
  • the power supply unit may include a power supply electrode rod having a power supply tip, which is a portion to which external power is applied, and an electrode support rod fastened to an upper end of the power supply electrode rod to support the electrode. Can be.
  • the inner circumferential surface of the through hole provided in the insulating member and the outer circumferential surface of the power supply unit inserted into the through hole are each formed with a screw line, and the insulating member and the power supply are rotated by the screw thread of the through hole and the screw wire of the power supply unit. It is preferable that the supply part is provided to be fastened.
  • the leakage preventing bonding agent is coated on the threaded portion of the through-hole provided in the insulating member and the screw wire of the power supply unit, the insulating member and the power supply may be fixed by the leakage preventing bonding agent.
  • the fuel is injected from the upper direction of the electrode so that the fuel does not accumulate in the bottom or wall of the inside of the reaction chamber, the fuel is completely burned and there is an effect that a flame can be generated immediately upon initial ignition.
  • a separate air inlet is formed diagonally in the wall surface of the reaction chamber at the lower part of the reaction chamber, that is, the lower part of the electrode, which is generated around the electrode by the rotational airflow of the external air flowing into the air inlet.
  • each of the insulating member including the insulating member when the insulating member and the power supply or the body portion and the reaction chamber are fastened, each of the insulating member including the insulating member by adopting a method of fastening by a rotational coupling of a screw formed on one side of each member, rather than a conventional screw fastening method. Since no screw holes are formed in the member, the durability of each of the members is guaranteed.
  • the power supply for supplying a high voltage to the electrode is connected directly to the electrode through the insulating member, thereby providing a more stable high voltage transmission and improved insulation performance.
  • FIG. 1 is a cross-sectional view showing the configuration of a plasma reactor for a conventional DPF system
  • FIG. 2 is a cross-sectional view showing the overall configuration of a plasma reactor for a DPF system according to an embodiment of the present invention
  • FIG. 3 is a cross-sectional view showing the discharge portion of FIG.
  • FIG. 4 is an enlarged cross-sectional view showing a configuration excluding the discharge unit in FIG. 2 and an enlarged form of an air hole;
  • FIG. 5 is a cross-sectional view illustrating an operating principle of exhaust gas combusted by the plasma reactor of FIG.
  • FIG. 6 is an enlarged cross-sectional view of A-A of FIG. 2.
  • FIGS. 2 to 6 a configuration of a plasma reactor for a DPF system according to an exemplary embodiment of the present invention will be described with reference to FIGS. 2 to 6.
  • FIG. 2 is a cross-sectional view showing the overall configuration of a plasma reactor for a DPF system according to an embodiment of the present invention
  • Figure 3 is a cross-sectional view showing the discharge portion of Figure 1
  • Figure 4 is a cross-sectional view showing a configuration except the discharge portion in Figure 1
  • 5 is an enlarged cross-sectional view illustrating an operation principle of exhaust gas burning by the plasma reactor of FIG. 1
  • FIG. 6 is an enlarged cross-sectional view of AA of FIG. 2.
  • the plasma reactor for a DPF system according to an embodiment of the present invention, the discharge unit 100, the reaction chamber 200, the fuel supply unit 210 and the air chamber 220 and Air inlet A 230 is included.
  • the plasma reactor for the DPF system may be a plasma burner that is commonly used as a heating means of the DPF system.
  • the discharge unit 100 is provided including an electrode 110, a power supply unit 120, an insulating member 130 and the body portion 140.
  • the electrode 110 is a member that forms a plasma discharge phenomenon due to a potential difference between the reaction chamber 200 and the electrode 110 when a high voltage is applied through the power supply unit 120.
  • the power supply unit 120 is connected to the lower end of the electrode 110 and is responsible for delivering a high voltage applied from the outside to the electrode 110.
  • the power supply unit 120 includes a power supply electrode 122 having a power supply tip 121, which is a portion to which external power is directly applied, and the power supply electrode 122. Is fastened to the top of the electrode support rod 123 is provided to support the electrode 110 is provided.
  • the electrode 110, the electrode support rod 123 and the electrode rod 122 for applying power should be provided with a strength that does not change the shape of the member even if a high voltage is applied, of course, flames described later It is preferably formed of a heat resistant material that can withstand the high heat transmitted due to the heat generation of the flame ignited by the generation unit 240.
  • the insulating member 130 has a through hole through which the power supply unit 120 is inserted is formed in the center to function to insulate the power supply unit 120 by the penetration insertion of the power supply unit 120.
  • the insulating member 130 is preferably provided to insulate the entire portion of the power supply unit 120 except for the power supply tip 121 of the electrode 110 and the power supply electrode 122.
  • a thread is formed on the inner circumferential surface of the through hole provided in the insulating member 130 and the outer circumferential surface of the power supply unit 120 inserted into the through hole, respectively, and the screw thread of the through hole and the screw line of the power supply unit 120 are rotated.
  • the insulating member 130 and the power supply 120 may be provided to be fastened.
  • a leakage preventing bonding agent is coated on a portion where the screw wire of the through hole provided in the insulating member 130 and the screw wire of the power supply unit 120 are rotatably contacted, and the insulating member is prevented by the leakage preventing bonding agent. 130 and the power supply 120 may be firmly fixed.
  • the leakage preventing bonding agent serves to prevent the fuel introduced into the reaction chamber 200 from penetrating the contact interval between the insulating member 130 and the power supply unit 120, more preferably the leakage
  • the preventive bonding agent may be a bonding agent formed of a material having heat resistance to withstand heat generated by ignition of the electrode 110.
  • a predetermined space 203 is formed between the inner surface of the through hole of the insulating member 130 and the outer circumferential surface of the power supply unit 120, and a power supply unit inserted into the through hole of the insulating member 130 ( 120 may prevent the insulation member 130 or the power supply unit 120 from being damaged by expanding the volume in the through hole due to the high heat transmitted through the electrode 110.
  • the predetermined space 203 means an empty space generated due to the difference between the diameter of the through hole formed in the center of the insulating member 130 and the power supply unit 120 inserted into the through hole.
  • the interval between the fastening portion of the electrode 110 and the power supply 120 from the inside of the reaction chamber 200 or the fastening portion of the electrode support rod 123 and the electrode rod 122 for applying power it is preferable to fill the oil-resistant heat-resistant powder (not shown), and more preferably the heat-resistant powder for oil-leak prevention is a heat-resistant material which is not damaged by high heat. It can be formed as.
  • the body portion 140 is provided with a through hole in which the insulating member 130 penetrates in the center and is fixed to one side of the outer circumferential surface of the insulating member 130 so as to surround the outer circumferential surface.
  • Screw A (142) is formed on one side of the outer circumferential surface of the body portion 140 for fastening with the reaction chamber 200 to be.
  • the insulating member 130 is inserted into the through-hole of the body portion 140, whereby the fuel in the reaction chamber 200 is penetrated into the portion where the body portion 140 and the insulating member 130 are in contact with each other.
  • the primary gasket 131 of the elastic material having a ring shape is provided.
  • the number of the primary gasket 131 is preferably provided according to the environment or purpose of use of the plasma reactor of the present invention.
  • the reaction chamber 200 is provided in a cylindrical shape with a through hole formed in the center portion, the screw thread B 201 is formed on the inner peripheral surface of the lower portion, the electrode 110, the power supply unit 120, the insulating member in the through hole
  • One side portion of the discharge portion 100 formed by the 130 and the body portion 140 is inserted into the discharge portion 100 by rotational coupling of the screw thread A 142 and the screw thread B 201 of the body portion 140. ) Is fastened.
  • the fuel inside the reaction chamber 200 is discharged at one side of a portion where the body 140 of the discharge unit 100 and the reaction chamber 200 are fastened, similar to the primary gasket 131.
  • a secondary gasket 141 having an elastic material having a ring shape is provided.
  • an air chamber 220 is installed to surround one side of the outer circumferential surface of the reaction chamber 200, and inside the air chamber 220, a reaction chamber ( A passage 221 through which air communicates along the outer circumferential surface of the 200 is formed.
  • the fuel supply unit 210 for injecting fuel into the reaction chamber 200 is fixedly coupled to one side of the reaction chamber 200, and further, external air is introduced into one side of the fuel supply unit 210.
  • An air inlet B 211 is provided, and the fuel flowing into the fuel supply unit 210 and the air injected into the air inlet B 211 are mixed to be introduced into the reaction chamber 200.
  • the fuel As the air flowing into the air inlet B 211 is mixed with the fuel flowing into the fuel supply unit 210, the fuel is atomized and oxygen for oxidation is supplied to the flame ignited by the electrode 110. It can be provided to further maximize the combustion rate of the plasma reactor.
  • the air inlet A 230 for supplying external air into the air chamber 220 is fixedly coupled, the reaction chamber 200 corresponding to the air chamber 220 At least one air hole 202 is formed on the wall surface of the wall, such that air introduced into the air chamber 220 is introduced into the reaction chamber 200.
  • the air hole 202 is formed diagonally in the wall surface of the reaction chamber 200, the air introduced from the air chamber 220 is rotated and the It is preferably provided to be introduced into the interior.
  • the air introduced into the reaction chamber 200 has a rotational force by the air hole 202 formed in an oblique line, is raised by the air flow in the reaction chamber 200 is ignited by the electrode 110 By providing oxygen to the flame, the combustion rate is further maximized.
  • the plasma reactor of the present invention is installed at one side of a passage through which exhaust gas generated from an engine is discharged.
  • the power supply tip of the power supply unit 120 ( The external high voltage is applied to the 121, and is transferred to the electrode 110 through the electrode rod 122 and the electrode support rod 123.
  • a plasma discharge phenomenon is formed in the reaction chamber 200 according to the potential difference between the electrode 110 and the reaction chamber 200, and sparks are generated according to the discharge phenomenon, thereby causing the reaction chamber 200.
  • Flame is ignited in the flame generating unit 240 located at the top of the).
  • the outside air flows into the passage 221 of the air chamber 220 through the air inlet A 230, and the introduced air rotates upwardly through the air hole 202 and the reaction chamber 200.
  • the introduced air rotates upwardly through the air hole 202 and the reaction chamber 200.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

According to the present invention, provided is a plasma reaction apparatus for a DPF system, including a discharge unit, a reaction chamber, a fuel supply unit, an air chamber, and an air injection port (A). The discharge unit includes an electrode for producing a plasma discharge phenomenon when a high voltage is applied, a power supply connected to the bottom of the electrode to supply a high voltage, an insulating member having a center with a through hole for the penetrative insertion of the power supply, and which insulates the power supply when the power supply is penetratively inserted, and a main body having a center with a through hole for the penetrative insertion of the insulating member, and which is fixed at one side of the outer surface of the insulating member, and has an outer surface with a thread (A) for mounting. The reaction chamber is shaped as a cylinder having a center with a through hole and a lower end with an inner surface with a thread (B), wherein the through hole is fitted with one side of the discharge unit to enable the reaction chamber to be engage with the discharge unit through the rotating coupling between the thread (A) and the thread (B). The fuel supply unit is fixed at one side of the reaction chamber to inject fuel into the reaction chamber. The air chamber is arranged to surround one side of the outer surface of the reaction chamber, and has an interior with an air passage formed along the outer surface of the reaction chamber. The air injection port (A) is fixed at one side of the air chamber to supply air into the air chamber.

Description

DPF 시스템용 플라즈마 반응장치Plasma Reactor for DPF System
본 발명은 DPF 시스템용 플라즈마 반응장치에 관한 것으로, 보다 구체적으로는 디젤기관 등에서 발생되는 배기가스에 포함된 입자상의 물질을 보다 신속하고 효과적으로 제거하기 위해, 초기 착화의 안정성을 확보하고 기화 성능을 향상시켜 불완전 연소를 방지함과 더불어, 가혹한 환경에서 사용되어지는 장치의 내구성이 보장되는 DPF 시스템용 플라즈마 반응장치에 관한 것이다.The present invention relates to a plasma reactor for a DPF system, and more particularly, in order to remove particulate matter contained in exhaust gas generated in a diesel engine more quickly and effectively, to secure stability of initial ignition and to improve vaporization performance. The present invention relates to a plasma reactor for a DPF system that prevents incomplete combustion and ensures durability of a device used in a harsh environment.
일반적으로, DPF(Diesel Particulate Filter trap) 시스템은 매연입자를 여과시키는 필터와 이 필터에 일정량 이상의 매연이 포집되었을 때, 포집된 매연을 산화시키는 디젤차량 후처리 시스템으로서, 상기 매연을 산화시키는 과정에서 별도의 재생 기구를 필요로 하는데, 이러한 DPF 시스템의 안정적 사용을 위한 재생방식으로는 자연재생(Passive DPF) 방식과 강제재생(Active DPF) 방식으로 구분할 수 있다.In general, the diesel particulate filter trap (DPF) system is a filter for filtering soot particles and a diesel vehicle after-treatment system for oxidizing the collected soot when a certain amount of soot is collected in the filter, and in the process of oxidizing the soot. A separate regeneration mechanism is required. Regeneration methods for stable use of such a DPF system may be classified into a passive regeneration method and a passive regeneration method.
여기서, 상기 자연재생 방식은 매연여과 필터 내에 첨가된 산화촉매에 의하여 배기가스의 온도를 높이고, 상기 배기가스 내의 산소(O2) 및 이산화질소(NO2)를 이용하여 매연을 연속적으로 산화시키는 방식이다.Here, the natural regeneration method is a method of raising the temperature of the exhaust gas by the oxidation catalyst added in the soot filtration filter, and continuously oxidizing soot using oxygen (O 2 ) and nitrogen dioxide (NO 2 ) in the exhaust gas. .
그러나, 이러한 자연재생 방식은 도심에서 저속으로 운행하는 차량의 경우, 배기가스의 온도가 자연재생에 필요한 촉매 활성화 가능 온도에 크게 미치지 못하기 때문에, 원활한 매연여과 필터의 재생 효과를 기대하기 어려운 실정이며, 이로 인해 장치가 장착된 차량에서는 연비의 효율 악화, 엔진 부조 및 필터 파손 등의 문제점이 있었다.However, such a natural regeneration method is difficult to expect a smooth soot filter regeneration effect because the exhaust gas temperature is not much lower than the catalyst activation temperature required for the natural regeneration in the case of a vehicle running at a low speed in the city. For this reason, the vehicle equipped with the device has problems such as deterioration of fuel efficiency, engine relief, and filter damage.
이에 반하여, 상기 강제재생 방식은 일정량의 매연이 상기 필터에 포집되었을 때, 강제적인 가열수단을 이용하여 배기가스의 온도를 매연의 산화 가능한 온도까지 상승시켜, 적절한 시기마다 매연여과 필터를 재생시킴으로써 지속적으로 DPF 시스템의 성능 및 차량의 성능을 유지시킬 수 있는 수단이다.On the contrary, the forced regeneration method uses a forced heating means to raise the temperature of the exhaust gas to the oxidizable temperature of the soot when a certain amount of soot is collected in the filter, thereby continuously regenerating the soot filtration filter at an appropriate time. This is a means to maintain the performance of the DPF system and the performance of the vehicle.
이러한 상기 강제재생 방식에 사용되는 가열수단으로는 플라즈마 반응장치(버너장치), 촉매연소기 및 전기히터 등이 사용되며, 특히, 플라즈마 반응장치는 플라즈마의 방전현상을 이용하여 연료를 가열, 개질 및 점화 단계를 거쳐 화염을 생성시키는 것으로, 차량에서 동력원으로 사용하는 디젤 연료를 직접 배기관 내부에서 연소시킴으로써 가능한 열손실을 최소화할 수 있다.As the heating means used in the forced regeneration method, a plasma reactor (burner device), a catalytic burner, an electric heater, and the like are used. In particular, the plasma reactor uses a discharge phenomenon of plasma to heat, reform, and ignite fuel. By generating the flame through the steps, it is possible to minimize the possible heat loss by directly burning the diesel fuel used as a power source in the vehicle directly inside the exhaust pipe.
이에 본 발명은 종래의 DPF 시스템용 플라즈마 반응장치를 개선한 것으로, 먼저 종래의 플라즈마 반응장치를 설명하면 다음과 같다.Therefore, the present invention is an improvement of the conventional plasma reactor for DPF systems, first described the conventional plasma reactor as follows.
도 1은 종래의 DPF 시스템용 플라즈마 반응장치(10)의 구성을 나타낸 단면도로서, 종래의 플라즈마 반응장치(10)는 배기가스 배출관(미도시)의 일측에 장착되어 배기가스에 포함된 대기오염 물질을 연소시키는데 사용되는 것이다.1 is a cross-sectional view showing the configuration of a plasma reactor 10 for a conventional DPF system, the conventional plasma reactor 10 is mounted on one side of the exhaust gas discharge pipe (not shown), the air pollutant contained in the exhaust gas It is used to burn.
도 1에 나타난 바와 같이, 종래의 플라즈마 반응장치(10)는 일측에 배출구(18)와, 기체유입구(15)가 형성된 중공의 반응로(12)와, 상기 반응로(12)의 밑면을 형성하며 그 내부에는 상기 기체유입구(15)와 연통됨과 동시에 상기 반응로(12)에 형성된 유입홀(16b)을 통해 상기 반응로(12)의 내부와 연통되는 혼합챔버(16a)가 형성된 세라믹 절연체(13)를 포함한 몸체(20)와; 상기 반응로(12) 내부에 플라즈마 반응을 위한 방전전압을 형성시키기 위해 상기 반응로(12) 내벽과 일정 이격된 형태로 상기 세라믹 절연체(13)에 고정되어 상기 반응로(12) 상에 돌출되고 그 내부에는 추가되는 액상연료가 유입되며, 상기 혼합챔버(16a)와 연통되는 흡열챔버(17)가 형성된 전극(11)과; 상기 전극(11)의 흡열챔버(17) 상으로 추가되는 액상연료를 공급하도록 상기 몸체(20)에 고정되는 액상연료 분사수단(14a,14b)을 포함하여 구성된다.As shown in FIG. 1, the conventional plasma reactor 10 forms a hollow reactor 12 having a discharge port 18, a gas inlet 15 formed at one side thereof, and a bottom surface of the reactor 12. And a ceramic insulator having a mixing chamber 16a formed therein which communicates with the gas inlet 15 and communicates with the inside of the reactor 12 through an inlet hole 16b formed in the reactor 12. A body 20 including 13; In order to form a discharge voltage for the plasma reaction in the reactor 12 is fixed to the ceramic insulator 13 in a form spaced apart from the inner wall of the reactor 12 is projected on the reactor 12 An electrode 11 into which an additional liquid fuel is introduced, and an endothermic chamber 17 communicating with the mixing chamber 16a; It comprises a liquid fuel injection means (14a, 14b) fixed to the body 20 to supply the liquid fuel added to the endothermic chamber 17 of the electrode (11).
그러나, 이러한 플라즈마 반응장치(10)는 다음과 같은 문제점이 있었다.However, the plasma reactor 10 has the following problems.
먼저, 상기 액상연료 분사수단(14a, 14b)을 통해 흡열챔버(17)의 내부로 유입된 액상연료가 상기 반응로(12)의 내부로 원활히 분출되지 못하여, 상기 혼합챔버(16a) 안에서 축척되는 현상이 발생하여 초기 점화가 지연될 수 있었다.First, the liquid fuel introduced into the endothermic chamber 17 through the liquid fuel injection means 14a and 14b is not smoothly ejected into the reactor 12, and is accumulated in the mixing chamber 16a. The phenomenon occurred and the initial ignition could be delayed.
그리고, 상기 흡열챔버(17)의 내부로 유입된 액상연료가 혼합챔버(17)를 거쳐 반응로(12)에 형성된 유입홀(16b)을 통해 반응로(12)의 내부로 액상연료가 분사될 시, 연료의 기화 성능이 극도로 저하되어 착화 불량이 발생함과 동시에, 도 1에 도시된 바와 같이 상기 플라즈마 반응장치(10)를 세워놓거나, 지면과 수평한 방향으로 설치될 경우 반응로(12) 내부의 하부와 내측 벽에 다량의 액상 연료가 고이거나 흐르게 되어 점화가 되지 않는 문제점이 있었다. The liquid fuel introduced into the endothermic chamber 17 is injected into the reactor 12 through the inlet hole 16b formed in the reactor 12 through the mixing chamber 17. At the same time, the vaporization performance of the fuel is extremely degraded, resulting in poor ignition, and at the same time, when the plasma reactor 10 is set up or installed in a horizontal direction with the ground as shown in FIG. ) There was a problem that a large amount of liquid fuel is accumulated or flows in the lower part and the inner wall of the inside so that it does not ignite.
또한, 전극(11)과 상기 전극(11)을 지지하는 세라믹 절연체(13)의 직접적인 체결에 의해 상호 연결부에 세라믹 절연체(13)의 파손이 발생하며, 세라믹 절연체(13) 내부에 다수의 액상연료 및 공기의 이동 경로가 존재하므로 파손의 잠재적 영향이 큰 문제점이 있었다.In addition, breakage of the ceramic insulator 13 occurs in the interconnection part by direct coupling of the electrode 11 and the ceramic insulator 13 supporting the electrode 11, and a plurality of liquid fuels are formed in the ceramic insulator 13. And since there is a movement path of air there was a big problem of the potential impact of breakage.
더불어, 플라즈마 반응장치(10)의 외부에서 전극(11)으로 고전압이 인가되어, 외부의 한 접점에서 세라믹 절연체(13)의 연통홀을 지나 내부 전극(11)의 한 접점으로 연결 시, 연결 불량이 발생하여 안정된 전원 공급이 제한되며 양측 연결부 및 연결 연통부를 통해 액상 연료 및 공기가 반응기 외부 및 고전압 인가부까지 누유되어 심각한 안전상의 문제가 발생할 수 있었다.In addition, when a high voltage is applied to the electrode 11 from the outside of the plasma reactor 10, the connection is poor when connecting from one external contact through the communication hole of the ceramic insulator 13 to one contact of the internal electrode 11 As a result, stable power supply is limited, and liquid fuel and air leak to the outside of the reactor and to the high voltage applying part through both connection parts and connection communication parts, which may cause serious safety problems.
게다가, 액상 연료 및 공기의 통로인 혼합챔버(16a) 및 유입홀(16b)의 가공 또는 전극과 세라믹 절연체(13)의 체결을 위한 나사공의 가공을 위해 상기 반응로(12) 및 세라믹 절연체(13)에 다수의 가공공정을 거쳐야 하므로 제작비용이 상승되는 문제점이 있었다.In addition, the reactor 12 and the ceramic insulator (for processing the mixing chamber 16a and the inlet hole 16b, which are passages of liquid fuel and air, or the processing of a screw hole for fastening the electrode and the ceramic insulator 13) 13) had to go through a number of processing steps there was a problem that the manufacturing cost is increased.
본 발명은 상술한 문제점을 해결하기 위하여 창출된 것으로, 연료와 공기의 흐름 및 분사 위치를 최적화함으로써, 완전 연소되지 못한 액상연료가 배기관 내부로 흘러 들어가는 현상을 방지할 수 있으며, 반응기 위치 및 방향에 관계없이 연료와 공기 분사 시 즉시 화염이 발생가능한 플라즈마 반응장치를 제공하는 데 목적이 있다.The present invention has been made to solve the above problems, by optimizing the flow and injection position of the fuel and air, it is possible to prevent the liquid fuel that is not completely burned flow into the exhaust pipe, the position and direction of the reactor It is an object of the present invention to provide a plasma reactor capable of generating flames immediately upon fuel and air injection.
또한, 상기 플라즈마 반응장치가 사용되어지는 고온 및 고압 또는 외부 충격이 심하게 발생하는 가혹한 환경에서 정상적인 작동이 가능하도록 각 구성품의 내구성이 보장되며, 장치의 내부에서 점화되는 화염이 엔진에서 배출되는 배기가스 내에 포함된 대기오염 물질을 완전히 산화시킬 정도의 연소율을 제공하는 플라즈마 반응장치를 제공하는 데 또 다른 목적이 있다.In addition, the durability of each component is ensured to enable normal operation in a harsh environment where the high temperature and high pressure or the external shock in which the plasma reactor is used, and the flame gas ignited inside the device is discharged from the engine. It is another object of the present invention to provide a plasma reactor that provides a combustion rate to completely oxidize the air pollutant contained therein.
상기의 목적을 달성하기 위한 본 발명의 DPF 시스템용 플라즈마 반응장치는, 고전압이 인가되면 플라즈마 방전현상을 형성시키는 전극과, 상기 전극의 하단부와 연결되어 고전압을 공급하는 전원공급부와, 상기 전원공급부가 관통하여 삽입되는 관통홀이 중앙에 구비되어 상기 전원공급부의 관통 삽입에 의해 상기 전원공급부를 절연시키는 절연부재와, 상기 절연부재가 관통하여 삽입되는 관통홀이 중앙에 구비되고 상기 절연부재의 외주면 일측에 고정되어 설치되며 장착을 위해 외주면의 일측에는 나사선A가 형성된 몸통부를 포함하는 방전부;와 중앙부에 통공이 형성된 원통형의 형상으로 구비되되 하단부의 내주면에는 나사선B가 형성되며, 상기 통공에는 상기 방전부의 일측부가 삽입되어 상기 나사선A와 나사선B의 회전결합에 의해 상기 방전부와 체결되는 반응챔버;와 상기 반응챔버의 일측에 고정 결합되어, 상기 반응챔버의 내부로 연료를 분사하는 연료공급부;와 상기 반응챔버의 외주면 일측을 둘러싸는 형태로 설치되며, 내부에는 공기가 소통하는 통로가 상기 반응챔버의 외주면을 따라 형성된 공기챔버; 및 상기 공기챔버의 일측에 고정 결합되어 상기 공기챔버의 내부로 공기를 공급하는 공기주입구A를 포함한다.Plasma reaction apparatus for a DPF system of the present invention for achieving the above object, an electrode for forming a plasma discharge phenomenon when a high voltage is applied, a power supply connected to the lower end of the electrode to supply a high voltage, the power supply unit A through hole inserted through the center is provided in the center to insulate the power supply unit by the insertion of the power supply unit, and a through hole in which the insulation member is inserted through the center is provided on one side of the outer peripheral surface of the insulating member. It is fixed to and installed on one side of the outer peripheral surface for mounting the discharge portion including a body portion formed with a screw thread A; and is provided in a cylindrical shape having a through-hole formed in the center portion, the screw thread B is formed on the inner peripheral surface of the lower portion, the room in the through hole One side part of the whole is inserted into the discharge part by rotational coupling of the screw line A and the screw line B A reaction chamber coupled to one side of the reaction chamber and fixedly coupled to one side of the reaction chamber, the fuel supply unit for injecting fuel into the reaction chamber and the outer circumferential surface of the reaction chamber are installed to surround the reaction chamber. An air chamber in which a passage is formed along an outer circumferential surface of the reaction chamber; And an air inlet A fixedly coupled to one side of the air chamber to supply air to the inside of the air chamber.
여기서, 상기 공기챔버와 대응되는 상기 반응챔버의 벽면에는 적어도 하나 이상의 공기홀이 형성되어, 상기 공기챔버로 유입된 공기가 상기 공기홀을 통해 상기 반응챔버의 내부로 유입될 수 있도록 구비되는 것이 바람직하다.Here, at least one air hole is formed on a wall surface of the reaction chamber corresponding to the air chamber, and the air introduced into the air chamber is provided to be introduced into the reaction chamber through the air hole. Do.
또한, 상기 절연부재와 몸통부가 체결되는 부위에는 적어도 하나 이상의 1차 가스켓이 구비되며, 상기 몸통부와 반응챔버가 체결되는 부위에는 적어도 하나 이상의 2차 가스켓이 구비될 수 있다.In addition, at least one primary gasket may be provided at a portion at which the insulating member and the body are fastened, and at least one secondary gasket may be provided at a portion at which the body and the reaction chamber are fastened.
게다가, 상기 연료공급부의 일측에는 외부의 공기가 유입되는 공기 주입구B가 구비되어, 상기 연료공급부로 유입되는 연료와 상기 공기 주입구B로 유입되는 공기가 혼합되어 상기 반응챔버의 내부로 유입되도록 구비되는 것이 바람직하다.In addition, one side of the fuel supply unit is provided with an air inlet B for introducing external air, and the fuel introduced into the fuel supply unit and the air introduced into the air inlet B are mixed to be introduced into the reaction chamber. It is preferable.
더불어, 상기 공기홀은, 상기 반응챔버의 벽면 내에서 사선으로 형성되어, 상기 공기챔버로부터 유입된 공기가 회전하며 상기 반응챔버의 내부로 유입되도록 구비되는 것이 바람직하다.In addition, the air hole is preferably formed in an oblique line in the wall surface of the reaction chamber, so that the air introduced from the air chamber is rotated and introduced into the reaction chamber.
또한, 상기 절연부재의 통공 내부면과 상기 전원공급부의 외주면의 사이에는 소정의 공간이 형성되며, 상기 소정의 공간에는 누수방지용 내열 분말제가 충전될 수 있다.In addition, a predetermined space is formed between the inner surface of the through hole of the insulating member and the outer circumferential surface of the power supply unit, and the predetermined space may be filled with a heat resistant powder for preventing leakage.
더불어, 전원공급부는, 외부의 전원이 인가되는 부분인 전원공급 팁(Tip)이 형성된 전원인가용 전극봉과, 상기 전원인가용 전극봉의 상단에 체결되어 상기 전극을 지지하는 전극지지봉을 포함하여 구비될 수 있다.In addition, the power supply unit may include a power supply electrode rod having a power supply tip, which is a portion to which external power is applied, and an electrode support rod fastened to an upper end of the power supply electrode rod to support the electrode. Can be.
그리고, 상기 절연부재에 구비된 관통홀의 내주면과 상기 관통홀에 삽입되는 전원공급부의 외주면에는 각각 나사선이 형성되어, 상기 관통홀의 나사선과 상기 전원공급부의 나사선의 회전결합에 의해 상기 절연부재와 상기 전원공급부가 체결되도록 구비되는 것이 바람직하다.The inner circumferential surface of the through hole provided in the insulating member and the outer circumferential surface of the power supply unit inserted into the through hole are each formed with a screw line, and the insulating member and the power supply are rotated by the screw thread of the through hole and the screw wire of the power supply unit. It is preferable that the supply part is provided to be fastened.
한편, 상기 절연부재에 구비된 관통홀의 나사선과 상기 전원공급부의 나사선이 회전결합되는 부분에는 누수방지용 본딩제가 도장되어, 상기 누수방지용 본딩제에 의해 상기 절연부재와 상기 전원공급부가 고정될 수 있다.On the other hand, the leakage preventing bonding agent is coated on the threaded portion of the through-hole provided in the insulating member and the screw wire of the power supply unit, the insulating member and the power supply may be fixed by the leakage preventing bonding agent.
본 발명인 DPF 시스템용 플라즈마 반응장치에 의하면,According to the plasma reactor for the DPF system of the present invention,
첫째, 연료가 전극의 상부방향에서 분사되어 반응챔버 내부의 하부 또는 벽면에 연료가 고이지 않게 되므로, 상기 연료가 완전연소됨과 더불어 초기점화 시 즉시 화염이 발생 가능한 효과가 있다.First, since the fuel is injected from the upper direction of the electrode so that the fuel does not accumulate in the bottom or wall of the inside of the reaction chamber, the fuel is completely burned and there is an effect that a flame can be generated immediately upon initial ignition.
둘째, 반응챔버 내의 하부 즉, 전극의 하부에는 별도의 공기주입구가 상기 반응챔버의 벽면 내에서 사선방향으로 형성되어, 상기 공기주입구로 유입되는 외부공기의 회전 상승 기류에 의해 전극의 주변에서 발생하는 화염에 산소를 제공하여 연소율을 극대화된다.Second, a separate air inlet is formed diagonally in the wall surface of the reaction chamber at the lower part of the reaction chamber, that is, the lower part of the electrode, which is generated around the electrode by the rotational airflow of the external air flowing into the air inlet. By providing oxygen to the flame, the combustion rate is maximized.
셋째, 절연부재와 전원공급부 또는 몸통부와 반응쳄버가 체결됨에 있어서, 종래의 나사체결 방식이 아닌, 각각의 부재의 일측에 형성된 나사선의 회전결합으로 체결되는 방식을 채택함으로써 상기 절연부재를 포함한 각각의 부재에 나사공이 형성되지 않으므로, 상기 각각의 부재의 내구성이 보장된다.Third, when the insulating member and the power supply or the body portion and the reaction chamber are fastened, each of the insulating member including the insulating member by adopting a method of fastening by a rotational coupling of a screw formed on one side of each member, rather than a conventional screw fastening method. Since no screw holes are formed in the member, the durability of each of the members is guaranteed.
특히, 상기 연료 및 공기의 공급라인을 형성함에 있어서, 종래의 절연부재의 내부를 거쳐 혼합챔버로 상기 연료 및 공기가 공급되는 방식과 달리, 상기 절연부재와는 연결되지 않은 별도의 공급라인 방식을 채택함으로써, 절연부재의 내구성이 더욱 보장되는 효과가 있다.In particular, in forming the fuel and air supply line, unlike the method in which the fuel and air is supplied to the mixing chamber through the interior of the conventional insulating member, a separate supply line system not connected to the insulating member By adopting, the durability of the insulating member is further ensured.
넷째, 전극에 고전압을 공급하는 전원공급부는 절연부재를 관통하여 상기 전극과 직접 연결됨으로써, 보다 안정된 고전압 전달 및 절연성능이 향상되는 효과를 제공한다.Fourth, the power supply for supplying a high voltage to the electrode is connected directly to the electrode through the insulating member, thereby providing a more stable high voltage transmission and improved insulation performance.
도 1은 종래의 DPF 시스템용 플라즈마 반응장치의 구성을 나타낸 단면도,1 is a cross-sectional view showing the configuration of a plasma reactor for a conventional DPF system,
도 2는 본 발명의 바람직한 일 실시예에 따른 DPF 시스템용 플라즈마 반응장치의 전체 구성을 나타낸 단면도,2 is a cross-sectional view showing the overall configuration of a plasma reactor for a DPF system according to an embodiment of the present invention,
도 3은 도 2의 방전부를 나타낸 단면도,3 is a cross-sectional view showing the discharge portion of FIG.
도 4는 도 2에서 방전부를 제외한 구성을 나타낸 단면도 및 공기홀의 형태를 확대한 확대도,4 is an enlarged cross-sectional view showing a configuration excluding the discharge unit in FIG. 2 and an enlarged form of an air hole;
도 5는 도 2의 플라즈마 반응장치에 의해 배기가스가 연소되는 작동원리를 나타낸 단면도이며,FIG. 5 is a cross-sectional view illustrating an operating principle of exhaust gas combusted by the plasma reactor of FIG.
도 6은 도 2의 A-A를 확대한 단면도이다.6 is an enlarged cross-sectional view of A-A of FIG. 2.
이하 첨부된 도면을 참조하면서 본 발명에 따른 바람직한 실시예를 상세히 설명하기로 한다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니 되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여, 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.
따라서, 본 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일 실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형예들이 있을 수 있음을 이해하여야 한다.Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.
이하, 도 2 내지 도 6을 참조하여 본 발명의 바람직한 일 실시예에 따른 DPF 시스템용 플라즈마 반응장치의 구성을 설명하도록 한다.Hereinafter, a configuration of a plasma reactor for a DPF system according to an exemplary embodiment of the present invention will be described with reference to FIGS. 2 to 6.
도 2는 본 발명의 바람직한 일 실시예에 따른 DPF 시스템용 플라즈마 반응장치의 전체 구성을 나타낸 단면도, 도 3은 도 1의 방전부를 나타낸 단면도, 도 4는 도 1에서 방전부를 제외한 구성을 나타낸 단면도 및 공기홀의 형태를 나타낸 확대도, 도 5는 도 1의 플라즈마 반응장치에 의해 배기가스가 연소되는 작동원리를 나타낸 단면도이며, 도 6은 도 2의 A-A를 확대한 단면도이다.2 is a cross-sectional view showing the overall configuration of a plasma reactor for a DPF system according to an embodiment of the present invention, Figure 3 is a cross-sectional view showing the discharge portion of Figure 1, Figure 4 is a cross-sectional view showing a configuration except the discharge portion in Figure 1 and 5 is an enlarged cross-sectional view illustrating an operation principle of exhaust gas burning by the plasma reactor of FIG. 1, and FIG. 6 is an enlarged cross-sectional view of AA of FIG. 2.
도 2 내지 도 6을 참조하면, 본 발명의 바람직한 일 실시예에 따른 DPF 시스템용 플라즈마 반응장치는, 방전부(100)와 반응챔버(200)와 연료공급부(210)와 공기챔버(220) 및 공기주입구A(230)를 포함한다.2 to 6, the plasma reactor for a DPF system according to an embodiment of the present invention, the discharge unit 100, the reaction chamber 200, the fuel supply unit 210 and the air chamber 220 and Air inlet A 230 is included.
여기서, 상기 DPF 시스템용 플라즈마 반응장치는, DPF 시스템의 가열수단으로서 통상적으로 사용되는 플라즈마 버너일 수 있다.The plasma reactor for the DPF system may be a plasma burner that is commonly used as a heating means of the DPF system.
먼저, 상기 방전부(100)는 전극(110), 전원공급부(120), 절연부재(130) 및 몸통부(140)를 포함하여 구비된다.First, the discharge unit 100 is provided including an electrode 110, a power supply unit 120, an insulating member 130 and the body portion 140.
상기 전극(110)은 전원공급부(120)를 통해 고전압이 인가되면 상기 반응챔버(200)와 상기 전극(110)간의 전위차이로 인하여 플라즈마 방전현상을 형성시키는 부재이다.The electrode 110 is a member that forms a plasma discharge phenomenon due to a potential difference between the reaction chamber 200 and the electrode 110 when a high voltage is applied through the power supply unit 120.
상기 전원공급부(120)는 상기 전극(110)의 하단부에 연결되어 외부로부터 인가된 고전압을 전극(110)으로 전달하는 기능을 담당한다.The power supply unit 120 is connected to the lower end of the electrode 110 and is responsible for delivering a high voltage applied from the outside to the electrode 110.
여기서, 상기 전원공급부(120)는 도 3에 나타낸 바와 같이, 외부의 전원이 직접 인가되는 부분인 전원공급 팁(121)이 형성된 전원인가용 전극봉(122)과, 상기 전원인가용 전극봉(122)의 상단에 체결되어 상기 전극(110)을 지지하는 전극지지봉(123)을 포함하여 구비된다.Here, as shown in FIG. 3, the power supply unit 120 includes a power supply electrode 122 having a power supply tip 121, which is a portion to which external power is directly applied, and the power supply electrode 122. Is fastened to the top of the electrode support rod 123 is provided to support the electrode 110 is provided.
또한, 상기 전극(110), 전극지지봉(123) 및 전원인가용 전극봉(122)은 고전압이 인가되더라도 부재의 형상에 변함이 없을 정도의 강도(剛度)가 구비되어야 함은 물론이며, 후술되는 화염생성부(240)에서 발화하는 화염의 발열로 인해 전달되는 고열에 견딜 수 있는 내열성 재질로 형성되는 것이 바람직하다.In addition, the electrode 110, the electrode support rod 123 and the electrode rod 122 for applying power should be provided with a strength that does not change the shape of the member even if a high voltage is applied, of course, flames described later It is preferably formed of a heat resistant material that can withstand the high heat transmitted due to the heat generation of the flame ignited by the generation unit 240.
한편, 상기 절연부재(130)는 전원공급부(120)가 관통하여 삽입되는 관통홀이 중앙에 형성되어 상기 전원공급부(120)의 관통 삽입에 의해 상기 전원공급부(120)를 절연시키는 기능을 한다.On the other hand, the insulating member 130 has a through hole through which the power supply unit 120 is inserted is formed in the center to function to insulate the power supply unit 120 by the penetration insertion of the power supply unit 120.
여기서, 상기 절연부재(130)는 전극(110)과 상기 전원인가용 전극봉(122)의 전원공급 팁(121)을 제외한 전원공급부(120)의 전체부분을 절연시키도록 구비되는 것이 바람직하다.In this case, the insulating member 130 is preferably provided to insulate the entire portion of the power supply unit 120 except for the power supply tip 121 of the electrode 110 and the power supply electrode 122.
더불어, 상기 절연부재(130)에 구비된 관통홀의 내주면과 상기 관통홀에 삽입되는 전원공급부(120)의 외주면에는 각각 나사선이 형성되어, 상기 관통홀의 나사선과 전원공급부(120)의 나사선의 회전결합에 의해 상기 절연부재(130)와 전원공급부(120)가 체결되도록 구비될 수 있다.In addition, a thread is formed on the inner circumferential surface of the through hole provided in the insulating member 130 and the outer circumferential surface of the power supply unit 120 inserted into the through hole, respectively, and the screw thread of the through hole and the screw line of the power supply unit 120 are rotated. By the insulating member 130 and the power supply 120 may be provided to be fastened.
더 나아가, 상기 절연부재(130)에 구비된 관통홀의 나사선과 상기 전원공급부(120)의 나사선이 회전결합되어 접촉되는 부분에는 누수방지용 본딩제가 도장되며, 상기 누수방지용 본딩제에 의해 상기 절연부재(130)와 전원공급부(120)가 견고하게 고정될 수 있다.Furthermore, a leakage preventing bonding agent is coated on a portion where the screw wire of the through hole provided in the insulating member 130 and the screw wire of the power supply unit 120 are rotatably contacted, and the insulating member is prevented by the leakage preventing bonding agent. 130 and the power supply 120 may be firmly fixed.
여기서, 상기 누수방지용 본딩제는 상기 반응챔버(200) 내로 유입된 연료가 절연부재(130)와 전원공급부(120)의 접촉된 간격으로 침투되는 것을 방지하는 기능을 하며, 더욱 바람직하게는 상기 누수방지용 본딩제는 상기 전극(110)의 발화에 따른 발열에 견딜 수 있도록 내열성을 갖는 재질로 형성된 본딩제가 사용되는 것이 바람직하다. Here, the leakage preventing bonding agent serves to prevent the fuel introduced into the reaction chamber 200 from penetrating the contact interval between the insulating member 130 and the power supply unit 120, more preferably the leakage The preventive bonding agent may be a bonding agent formed of a material having heat resistance to withstand heat generated by ignition of the electrode 110.
또한, 상기 절연부재(130)의 관통홀 내부면과 상기 전원공급부(120)의 외주면 사이에는 소정의 공간(203)이 형성되도록 구비되어, 상기 절연부재(130)의 통공 내에 삽입된 전원공급부(120)가 상기 전극(110)을 통해 전달받은 고열에 의해 상기 통공 내에서 부피가 팽창하여 상기 절연부재(130) 또는 전원공급부(120)가 손상되는 것을 방지할 수 있다.In addition, a predetermined space 203 is formed between the inner surface of the through hole of the insulating member 130 and the outer circumferential surface of the power supply unit 120, and a power supply unit inserted into the through hole of the insulating member 130 ( 120 may prevent the insulation member 130 or the power supply unit 120 from being damaged by expanding the volume in the through hole due to the high heat transmitted through the electrode 110.
즉, 상기 소정의 공간(203)은 절연부재(130)의 중앙에 형성된 통공과 상기 통공에 삽입되는 전원공급부(120)의 직경의 차이로 인해 발생하는 빈 공간을 의미한다.That is, the predetermined space 203 means an empty space generated due to the difference between the diameter of the through hole formed in the center of the insulating member 130 and the power supply unit 120 inserted into the through hole.
이때, 상기 소정의 공간(203)에는 상기 반응챔버(200) 내부로부터 전극(110)과 전원공급부(120)의 체결부위의 간격 또는 전극지지봉(123)과 전원인가용 전극봉(122)의 체결부위의 간격으로 침투될 수 있는 연료의 누유를 차단하기 위해, 누유 방지용 내열 분말제(미도시)가 충전되는 것이 바람직하며, 더 바람직하게는 상기 누유 방지용 내열 분말제는 고열에 의해 손상되지 않는 내열성 재질로 형성될 수 있다.At this time, in the predetermined space 203, the interval between the fastening portion of the electrode 110 and the power supply 120 from the inside of the reaction chamber 200 or the fastening portion of the electrode support rod 123 and the electrode rod 122 for applying power In order to block the oil leakage of the fuel which can penetrate at intervals of the oil, it is preferable to fill the oil-resistant heat-resistant powder (not shown), and more preferably the heat-resistant powder for oil-leak prevention is a heat-resistant material which is not damaged by high heat. It can be formed as.
한편, 상기 몸통부(140)는 상기 절연부재(130)가 관통하여 삽입되는 관통홀이 중앙에 구비되고, 절연부재(130)의 외주면 일측에 고정되어 상기 외주면을 둘러싸는 형태로 설치되며, 후술되는 반응챔버(200)와의 체결을 위해 상기 몸통부(140)의 외주면의 일측에는 나사선A(142)가 형성된다.On the other hand, the body portion 140 is provided with a through hole in which the insulating member 130 penetrates in the center and is fixed to one side of the outer circumferential surface of the insulating member 130 so as to surround the outer circumferential surface. Screw A (142) is formed on one side of the outer circumferential surface of the body portion 140 for fastening with the reaction chamber 200 to be.
여기서, 상기 몸통부(140)의 관통홀에 절연부재(130)가 삽입됨으로써, 상기 몸통부(140)와 절연부재(130)가 체결되어 접하는 부분에는 상기 반응챔버(200) 내의 연료가 침투되는 것을 방지하기 위해 고리형태를 갖는 탄성재질의 1차 가스켓(131)이 구비되는 것이 바람직하다. Here, the insulating member 130 is inserted into the through-hole of the body portion 140, whereby the fuel in the reaction chamber 200 is penetrated into the portion where the body portion 140 and the insulating member 130 are in contact with each other. In order to prevent that it is preferable that the primary gasket 131 of the elastic material having a ring shape is provided.
이때, 상기 1차 가스켓(131)이 구비되는 수량은 본 발명의 플라즈마 반응장치가 사용되는 환경 또는 사용목적에 따라 정해지는 것이 바람직하다.At this time, the number of the primary gasket 131 is preferably provided according to the environment or purpose of use of the plasma reactor of the present invention.
한편, 상기 반응챔버(200)는 중앙부에 통공이 형성된 원통형의 형상으로 구비되되 하단부의 내주면에는 나사선B(201)가 형성되며, 상기 통공에는 상기 전극(110), 전원공급부(120), 절연부재(130) 및 몸통부(140)로 형성되는 방전부(100)의 일측부가 삽입되어 상기 몸통부(140)의 나사선A(142)과 나사선B(201)의 회전결합에 의해 상기 방전부(100)와 체결된다.On the other hand, the reaction chamber 200 is provided in a cylindrical shape with a through hole formed in the center portion, the screw thread B 201 is formed on the inner peripheral surface of the lower portion, the electrode 110, the power supply unit 120, the insulating member in the through hole One side portion of the discharge portion 100 formed by the 130 and the body portion 140 is inserted into the discharge portion 100 by rotational coupling of the screw thread A 142 and the screw thread B 201 of the body portion 140. ) Is fastened.
여기서, 상기 방전부(100)의 몸통부(140)와 상기 반응챔버(200)가 체결되는 부위의 일측에는 1차 가스켓(131)과 마찬가지로, 상기 반응챔버(200) 내부의 연료가 방전부(100)의 내부로 침투되거나 외부로 유출되는 것을 방지하기 위해 고리형태를 갖는 탄성재질의 2차 가스켓(141)이 구비되는 것이 바람직하다.Here, the fuel inside the reaction chamber 200 is discharged at one side of a portion where the body 140 of the discharge unit 100 and the reaction chamber 200 are fastened, similar to the primary gasket 131. In order to prevent penetration into or out of the 100, it is preferable that a secondary gasket 141 having an elastic material having a ring shape is provided.
상기 반응챔버(200)의 외주면에는, 도 6에 나타난 바와 같이 반응챔버(200)의 외주면 일측을 둘러싸는 형태로 공기챔버(220)가 설치되며, 상기 공기챔버(220)의 내부에는 반응챔버(200)의 외주면을 따라 공기가 소통하는 통로(221)가 형성된다.On the outer circumferential surface of the reaction chamber 200, as shown in FIG. 6, an air chamber 220 is installed to surround one side of the outer circumferential surface of the reaction chamber 200, and inside the air chamber 220, a reaction chamber ( A passage 221 through which air communicates along the outer circumferential surface of the 200 is formed.
더불어, 상기 반응챔버(200)의 일측에는 반응챔버(200)의 내부로 연료를 분사하는 연료공급부(210)가 고정 결합되며, 더 나아가 상기 연료공급부(210)의 일측에는 외부의 공기가 유입되는 공기주입구B(211)가 구비되어, 연료공급부(210)로 유입되는 연료와 공기주입구B(211)되는 공기가 혼합되어 상기 반응챔버(200)의 내부로 유입되도록 구비되는 것이 바람직하다.In addition, the fuel supply unit 210 for injecting fuel into the reaction chamber 200 is fixedly coupled to one side of the reaction chamber 200, and further, external air is introduced into one side of the fuel supply unit 210. An air inlet B 211 is provided, and the fuel flowing into the fuel supply unit 210 and the air injected into the air inlet B 211 are mixed to be introduced into the reaction chamber 200.
상기 연료공급부(210)로 유입되는 연료에 상기 공기주입구B(211)로 유입되는 공기가 혼합됨으로써, 상기 연료는 미립화됨과 동시에 전극(110)에서 발화되는 화염에 산화를 위한 산소가 공급되어 본 발명의 플라즈마 반응장치의 연소율을 더욱 극대화시킬 수 있도록 구비될 수 있다.As the air flowing into the air inlet B 211 is mixed with the fuel flowing into the fuel supply unit 210, the fuel is atomized and oxygen for oxidation is supplied to the flame ignited by the electrode 110. It can be provided to further maximize the combustion rate of the plasma reactor.
또한, 상기 공기챔버(220)의 일측에는, 공기챔버(220)의 내부로 외부공기를 공급하는 공기주입구A(230)가 고정 결합되며, 상기 공기챔버(220)와 대응되는 반응챔버(200)의 벽면에는 적어도 하나 이상의 공기홀(202)이 형성되어, 상기 공기챔버(220)로 유입된 공기가 반응챔버(200)의 내부로 유입되도록 구비된다.In addition, one side of the air chamber 220, the air inlet A 230 for supplying external air into the air chamber 220 is fixedly coupled, the reaction chamber 200 corresponding to the air chamber 220 At least one air hole 202 is formed on the wall surface of the wall, such that air introduced into the air chamber 220 is introduced into the reaction chamber 200.
이때, 도 6에 나타낸 바와 같이, 상기 공기홀(202)은 반응챔버(200)의 벽면 내에서 사선으로 형성되어, 상기 공기챔버(220)로부터 유입된 공기가 회전하며 상기 반응챔버(200)의 내부로 유입되도록 구비되는 것이 바람직하다.At this time, as shown in Figure 6, the air hole 202 is formed diagonally in the wall surface of the reaction chamber 200, the air introduced from the air chamber 220 is rotated and the It is preferably provided to be introduced into the interior.
도 6의 화살표는 공기주입구A(230)를 통해 유입된 공기가 상기 공기챔버(220)에 형성된 통로를 통해 상기 반응챔버(200) 내부로 유입되는 경로를 나타낸다.6 indicates a path through which air introduced through air inlet A 230 flows into the reaction chamber 200 through a passage formed in the air chamber 220.
여기서, 상기 반응챔버(200) 내부로 유입된 공기는 사선으로 형성된 공기홀(202)에 의해 회전력을 갖게 되며, 반응챔버(200) 내부의 기류에 의해 상승되어 상기 전극(110)에 의해 점화된 화염에 산소를 제공함으로써, 연소율을 더욱 극대화한다.Here, the air introduced into the reaction chamber 200 has a rotational force by the air hole 202 formed in an oblique line, is raised by the air flow in the reaction chamber 200 is ignited by the electrode 110 By providing oxygen to the flame, the combustion rate is further maximized.
다음으로는, 본 발명의 바람직한 일 실시예에 따른 DPF 시스템용 플라즈마 반응장치의 동작원리에 대해 설명한다.Next, the operation principle of the plasma reactor for a DPF system according to an embodiment of the present invention will be described.
도 5에 도시된 바와 같이, 본 발명의 플라즈마 반응장치는 엔진으로부터 발생하는 배기가스가 배출되는 통로의 일측에 설치된다.As shown in FIG. 5, the plasma reactor of the present invention is installed at one side of a passage through which exhaust gas generated from an engine is discharged.
먼저, 연료공급부(210)로부터 연료와 공기가 혼합된 상태인 미립화된 연료가 반응챔버(200)의 내부에 위치한 전극(110)의 상부방향으로 분사되면, 전원공급부(120)의 전원공급 팁(121)에 외부의 고전압이 인가되어, 상기 전원인가용 전극봉(122)과 전극지지봉(123)을 거쳐 전극(110)에 전달된다.First, when the atomized fuel in a state in which fuel and air are mixed from the fuel supply unit 210 is injected toward the upper side of the electrode 110 located inside the reaction chamber 200, the power supply tip of the power supply unit 120 ( The external high voltage is applied to the 121, and is transferred to the electrode 110 through the electrode rod 122 and the electrode support rod 123.
이어서, 상기 전극(110)과 반응챔버(200)와의 전위차에 따라 반응챔버(200)의 내부에서는 플라즈마 방전현상이 형성되며, 상기 방전현상에 따라 스파크(spark)가 발생함으로써, 상기 반응챔버(200)의 상부에 위치한 화염생성부(240)에 화염이 발화하게 된다.Subsequently, a plasma discharge phenomenon is formed in the reaction chamber 200 according to the potential difference between the electrode 110 and the reaction chamber 200, and sparks are generated according to the discharge phenomenon, thereby causing the reaction chamber 200. Flame is ignited in the flame generating unit 240 located at the top of the).
이와 동시에, 상기 공기주입구A(230)로 외부의 공기가 공기챔버(220)의 통로(221) 내부로 유입되며, 상기 유입된 공기는 상기 공기홀(202)을 통해 회전 상승하며 반응챔버(200)의 내부로 유입됨으로써 상기 화염에 산소를 제공하게 된다.At the same time, the outside air flows into the passage 221 of the air chamber 220 through the air inlet A 230, and the introduced air rotates upwardly through the air hole 202 and the reaction chamber 200. By introducing into the interior of the flame to provide oxygen to the flame.
따라서, 상기 화염에 따른 발열로 인하여 매연입자를 산화시킬 수 있는 산화온도까지의 승온이 가능한 것이다.Therefore, it is possible to increase the temperature to the oxidation temperature that can oxidize the soot particles due to the heat generated by the flame.
이상과 같이, 본 발명은 비록 한정된 실시예와 도면에 의해 설명되었으나, 본 발명은 이것에 의해 한정되지 않으며 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 본 발명의 기술 사상과 아래에 기재될 청구범위의 균등 범위 내에서 다양한 수정 및 변형이 가능함은 물론이다.As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

Claims (8)

  1. 엔진으로부터 배출된 배기가스 중의 매연입자를 산화시켜 제거하는 DPF 시스템에 있어서,In a DPF system that oxidizes and removes soot particles in exhaust gas discharged from an engine,
    고전압이 인가되면 플라즈마 방전현상을 형성시키는 전극과, 상기 전극의 하단부와 연결되어 고전압을 공급하는 전원공급부와, 상기 전원공급부가 관통하여 삽입되는 관통홀이 중앙에 구비되어 상기 전원공급부의 관통 삽입에 의해 상기 전원공급부를 절연시키는 절연부재와, 상기 절연부재가 관통하여 삽입되는 관통홀이 중앙에 구비되고 상기 절연부재의 외주면 일측에 고정되어 설치되며 장착을 위해 외주면의 일측에는 나사선A가 형성된 몸통부를 포함하는 방전부;와When a high voltage is applied, an electrode for forming a plasma discharge phenomenon, a power supply unit connected to the lower end of the electrode and supplying a high voltage, and a through hole through which the power supply unit is inserted are provided at the center to penetrate the power supply unit. An insulating member for insulating the power supply unit and a through hole through which the insulating member penetrates are provided at the center, and fixed to one side of the outer circumferential surface of the insulating member, and a body having a thread A formed at one side of the outer circumferential surface for mounting. Discharge unit comprising; And
    중앙부에 통공이 형성된 원통형의 형상으로 구비되되, 하단부의 내주면에는 나사선B가 형성되며, 상기 통공에는 상기 방전부의 일측부가 삽입되어 상기 나사선A와 나사선B의 회전결합에 의해 상기 방전부와 체결되는 반응챔버;와It is provided in a cylindrical shape having a through-hole formed in the center portion, a screw thread B is formed on the inner circumferential surface of the lower portion, and one side portion of the discharge portion is inserted into the through hole to be coupled to the discharge portion by rotational coupling of the screw wire A and the screw wire B. Reaction chamber; and
    상기 반응챔버의 일측에 고정 결합되어, 상기 반응챔버의 내부로 연료를 분사하는 연료공급부;와 A fuel supply unit fixed to one side of the reaction chamber and injecting fuel into the reaction chamber; and
    상기 반응챔버의 외주면 일측을 둘러싸는 형태로 설치되며, 내부에는 공기가 소통하는 통로가 상기 반응챔버의 외주면을 따라 형성된 공기챔버; 및 An air chamber installed around one side of an outer circumferential surface of the reaction chamber and having an air passage therein along the outer circumferential surface of the reaction chamber; And
    상기 공기챔버의 일측에 고정 결합되어 상기 공기챔버의 내부로 공기를 공급하는 공기주입구A를 포함하며,Is fixedly coupled to one side of the air chamber includes an air inlet A for supplying air into the inside of the air chamber,
    상기 공기챔버와 대응되는 상기 반응챔버의 벽면에는 적어도 하나 이상의 공기홀이 형성되어, 상기 공기챔버로 유입된 공기가 상기 반응챔버의 내부로 유입되는 DPF 시스템용 플라즈마 반응장치. At least one air hole is formed on a wall surface of the reaction chamber corresponding to the air chamber, and the air introduced into the air chamber is introduced into the reaction chamber.
  2. 제 1항에 있어서,The method of claim 1,
    상기 절연부재와 몸통부가 체결되는 부위에는 적어도 하나 이상의 1차 가스켓이 구비되며, 상기 몸통부와 반응챔버가 체결되는 부위에는 적어도 하나 이상의 2차 가스켓이 구비되는 플라즈마 반응장치.At least one primary gasket is provided at a portion at which the insulating member and the body are fastened, and at least one secondary gasket is provided at a portion at which the body and the reaction chamber are fastened.
  3. 제 1항에 있어서,The method of claim 1,
    상기 연료공급부의 일측에는 외부의 공기가 유입되는 공기 주입구B가 구비되어, 상기 연료공급부로 유입되는 연료와 상기 공기 주입구B로 유입되는 공기가 혼합되어 상기 반응챔버의 내부로 유입되는 플라즈마 반응장치.One side of the fuel supply unit is provided with an air inlet B for introducing external air, and the fuel introduced into the fuel supply unit and the air introduced into the air inlet B is mixed into the reaction chamber into the reaction chamber.
  4. 제 1항에 있어서, 상기 공기홀은,The method of claim 1, wherein the air hole,
    상기 반응챔버의 벽면 내에서 사선으로 형성되어, 상기 공기챔버로부터 유입된 공기가 회전하며 상기 반응챔버의 내부로 유입되는 플라즈마 반응장치.The plasma reactor is formed in a diagonal line in the wall of the reaction chamber, the air introduced from the air chamber is rotated and introduced into the reaction chamber.
  5. 제 1항에 있어서,The method of claim 1,
    상기 절연부재의 통공 내부면과 상기 전원공급부의 외주면의 사이에는 소정의 공간이 형성되며, 상기 소정의 공간에는 누수방지용 내열 분말제가 충전되는 플라즈마 반응장치.And a predetermined space is formed between the inner surface of the through hole of the insulating member and the outer circumferential surface of the power supply unit, and the predetermined space is filled with a heat-resistant powder for preventing leakage.
  6. 제 1항에 있어서, 전원공급부는,The method of claim 1, wherein the power supply unit,
    외부의 전원이 인가되는 부분인 전원공급 팁이 형성된 전원인가용 전극봉과, 상기 전원인가용 전극봉의 상단에 체결되어 상기 전극을 지지하는 전극지지봉을 포함하여 구비되는 플라즈마 반응장치.Plasma reactor comprising a power supply electrode formed with a power supply tip that is a portion to which external power is applied, and an electrode support rod fastened to an upper end of the power supply electrode to support the electrode.
  7. 제 6항에 있어서, The method of claim 6,
    상기 절연부재에 구비된 관통홀의 내주면과 상기 관통홀에 삽입되는 전원공급부의 외주면에는 각각 나사선이 형성되어, 상기 관통홀의 나사선과 상기 전원공급부의 나사선의 회전결합에 의해 상기 절연부재와 상기 전원공급부가 체결되는 플라즈마 반응장치.Screw lines are formed on the inner circumferential surface of the through hole provided in the insulating member and the outer circumferential surface of the power supply unit inserted into the through hole, respectively. Fastening plasma reactor.
  8. 제 7항에 있어서,The method of claim 7, wherein
    상기 절연부재에 구비된 관통홀의 나사선과 상기 전원공급부의 나사선이 회전결합되어 접촉되는 부분에는 누수방지용 본딩제가 도장되어, 상기 누수방지용 본딩제에 의해 상기 절연부재와 상기 전원공급부가 고정되는 플라즈마 반응장치.A portion of the through-hole provided in the insulating member and a screw thread of the power supply unit are rotatably coupled to the leakage preventing bonding agent is coated, the plasma reaction apparatus is fixed to the insulating member and the power supply by the leakage preventing bonding agent. .
PCT/KR2009/003571 2008-07-23 2009-06-30 Plasma reaction apparatus for a dpf system WO2010011031A2 (en)

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